Tag Archives: punching machinery

China factory OEM ODM Customerized Casting Punching Parts for Heavy Agricultural Industrial Trailer Machinery /Dustile Iron/Alloy & Carbon Steel/Grey Iron/Stainless Steel agricultural trailer brake parts

Product Description

Product: OEM ODM Customerized Casting Punching Parts For Heavy Agricultural Industrial Trailer Machinery /Dustile Iron/Alloy & Carbon steel/Grey Iron/Stainless steel

Workpiece Specification Casting Standard Casting Weight Casting Tolerance Surface Roughness Heat Treatment Casting Material
OEM production according to customer's drawing or sample. ISO ,DIN, AISI, ASTM, BS, JIS, EN, AS etc.  0.1KG-300KG CT 7-CT 8. Ra 0.05-Ra 50. According to Cusomter's specifications High grade ductile iron(QT1050-6)/
(QT800-5)/(QT600-5)
Grey iron
Stainless steel
Carbon steel
Casting Process Dimension Inspection Finish Origin Design Software
Sand Casting Investment Casting Lost Foam Casting Vacuum process casting Spectrum Analyzer
Hexagon CMM
Hardness test equipment
Tension test machine
E-coating testing equipments Metalloscope
Sand Blasting
Zinc Coat
H.D.Galvanizing
Spray-Paint Passivating
Polishing
Electrophoresis
Machining,etc.
HangZhou
China
AutoCAD
Solidworks2571
Solidege 10
PDF
Creo

FAQ:

Q. Are you manufacturer? What is the aim of your company?

A. Yes. CZPT Asia has been producing agricultural and industrial axles and suspensions since the year 2006. Our aim is to  
     provide only high quality Axles and Suspensions with accesories to global clients but with competitive prices.

Q. Where is your factory?

A. We are located in HangZhou, ZheJiang , China. Welcome to visit us.

Q. How many years have you been in this business line?

A. We have 20 years experience for production of Agricultural and Industrial products, Our products are enjoying good reputation
     from more than 20 countries.

Q. What is your brand?

A. ROC is our own brand, CZPT Asia is affiliated to the France CZPT Group (Est. 1971), it is a whole-owned subsidiary
    company of France CZPT Group in China. 

Q. Can you accept OEM ?

A. Yes, OEM is acceptable, We can sell products without ROC logo.

Q. How do you ensure the quality?

A. We have strict QC process:
1) Before production, Check strictly the raw material quality.
2) During the half production, We check the finished product quality.
3) Before shipment, We test every product and check defects. Any products with defects won't be loaded.
More details, Please check with our sales team.

Q. What about your M.O.Q ?

A. Our minimum order value is USD500. For smaller order, please check particularly with our sales team.

Q. What is the lead time?

A. Within 40 days for 40ft container.  Within 30 days for 20ft container. 

Q. What about your payment terms?

A. We accept various terms, including T/T , L/C , Western Union, etc.
 

Type: Clay Dry Sand
Casting Method: Thermal Gravity Casting
Sand Core Type: Clay Sand Core
Application: Machinery Parts
Machining: CNC Machining
Material: Iron
Samples:
US$ 1/kg
1 kg(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

agriculturalparts

Agricultural Parts

Agricultural machinery, also known as agricultural machinery, is any mechanical device or structure used in agriculture . It includes hand tools, tractors and countless other farm implements. Agricultural machinery can be divided into two categories: power tools and hand tools. Some of the most common types of agricultural equipment are listed below. Each of these categories includes parts used to repair, maintain, and operate a specific piece of equipment or machinery. To learn more about agricultural machinery, please visit the Manufacturers and Suppliers section of our website.

Agricultural Machinery

Agricultural machinery parts are critical to the overall operation of a farm or ranch. Replacement parts are essential if your equipment is not functioning as expected. CZPT's consumables experts are ready to help you find the right replacement parts for your equipment. You can rely on our knowledgeable staff to provide you with fast and accurate replacement services. If your agricultural machinery needs replacement parts, please contact us for assistance.
Key drivers of the agricultural machinery market include high global demand for food, rapid crop production, access to resources, and availability of credit. Agricultural machinery is mainly manufactured in Europe, the United States, Japan and China. Overall, we expect the agricultural machinery market to exceed $118 billion by 2025. Additionally, agricultural machinery OEM components are expected to grow at a CAGR of 3.6% over the next five years.
Agricultural machinery accessories include accessories and accessories other than tractor accessories. Plows loosen the soil and kill surface vegetation, fertilizer spreaders apply fertilizer evenly, rakes agitate the soil, and seeders sow seeds. Other accessories include balers, which collect materials and bundle them into management packs. Transplanters are used to transplant plants from one location to another. It must be properly maintained to maximize its useful life.
Farm machinery accessories can be found in all types of farming. From sowing to harvesting, farm machinery equipment is necessary to help farmers in various agricultural activities. Without mechanization, farming would not be as profitable as it is today. In Iran, CZPT produces agricultural machinery parts including harrows, tillers, grain refiners, spinning machines and threshers. You can also find farm machinery accessories for sale through these companies.
A well-known brand in the field of agricultural machinery is CZPT. Parts can be found for CZPT and CZPT models. The company also produces replacement parts for many different models. The company's extensive dealer network spans more than 160 countries. PDF also supplies agricultural machinery parts for brands such as Ford and CZPT. If you are looking for reliable quality and cost-effective agricultural machinery, we can get the parts you need from these brands.

Agricultural Equipment

Growing population and demand for equipment drive the demand for agricultural equipment in Asia. In countries with limited land such as India, low-paying agricultural jobs are not enough for many farmers. At the same time, Australia has a large amount of agricultural land, but the reduction of agricultural labor has led to the increasing mechanization and integration of agricultural production. This, in turn, has fueled a surge in demand for Australian agricultural products in Asia, particularly in China and India.
Tractor transplanter is a common agricultural equipment. Tractors pull on these machines, which dig holes and put plants into the holes. A cultivator is another type of agricultural equipment that tills the soil and controls weeds. Smaller operations often use a cultivator. Large plastic farms, on the other hand, need to invest in cladding, using a series of wheels to lay down a layer of plastic.
Agricultural machinery is widely used. For example, tractors can carry heavy agricultural attachments such as haymakers and grain turbines. Farm equipment also helps farmers prepare soil for growing and harvesting large quantities of crops. It also helps transport food to other regions for processing. These machines make farming easier and more efficient. With all these benefits, it's no wonder so many people engage in farming as a profession. The world needs food and agriculture, and agricultural equipment is an integral part of the process.
Agricultural equipment operators use heavy agricultural machinery every day. They inspect the equipment and make minor repairs to keep it running smoothly. They also monitor the working environment and working conditions around the equipment. Depending on the field, agricultural equipment operators can operate a variety of agricultural equipment, load and unload products, and even harvest crops. These workers may spend most of the year working outdoors, which can take a long time. The average workweek for an agricultural equipment operator is approximately 18 hours.
Agricultural equipment operators often gain practical experience on the job. Some jobs in the industry may require a high school diploma, and students without a high school diploma can work on farms to learn the skills needed for the position. The industry requires employees to be properly trained and certified to operate equipment safely. AWS certification is highly recommended. All Associate of Applied Science in Agricultural Production Systems include core business and management courses applicable to the agricultural industry.
agriculturalparts

Agricultural machinery manufacturers

Agricultural machinery manufacturers produce agricultural implements such as tractors and combines for agricultural purposes. The production of these machines increases the productivity and efficiency of farmers around the world. These machines and parts increase the quality and quantity of crop production while reducing labor costs. They also help improve soil fertility. It's important to choose the right type of machine for your farm because not all farm machinery is the same. There are many high-quality agricultural machinery manufacturers in China, whose prices are competitive with the local market prices.
The growth of the agricultural machinery market is mainly driven by the growing global food demand. Agricultural equipment manufacturers are investing in precision-based technologies, which allow them to build better agricultural machines. In addition, OEM parts manufacturers focus on the safety, quality and continuous improvement of agricultural machinery parts. With the shift in focus, the agricultural machinery market is expected to make great strides in the coming years. Along with these improvements, the demand for agricultural machinery OEM parts is expected to grow at an annual rate of over 3%.
CZPT Group: This agricultural machinery manufacturer has more than 20 overseas service centers around the world. The company is committed to providing excellent customer service and provides a warranty on all of its products. CZPT Machinery's space parts are easily available at their service center. Shandong CZPT Heavy Industry International, a Chinese agricultural machinery manufacturer, was established in 1998 and is headquartered in Weifang City, Shandong Province.
Although the agricultural machinery industry is growing, the market is still affected by the economic downturn. The COVID-19 pandemic has put pressure on farming operations, who may forgo buying expensive equipment. Private investment in industrial equipment is also falling and is expected to decline further in 2020 and 2021. On the other hand, aftermarket agricultural machinery parts are tailored for an exact fit and outperform OEM parts.
agriculturalparts

Agricultural Machinery Suppliers

Agricultural Machinery Suppliers have a wide variety of products. From large farm machines to small ones, you'll find it all in one place. In addition to providing first-class machinery, agricultural machinery suppliers can also provide you with spare parts. Shandong Heavy Industry International, for example, is China's largest agricultural machinery maker, with annual sales of $9 billion. The company is headquartered in Weifang, Shandong and has been operating for more than six years.
Most farm equipment consists of hundreds of parts. For example, a typical tractor has more than 1,700 parts. Manufacturers have been shifting to just-in-time delivery of parts and raw materials. While the system works for predictable supply chains, it can break down when one component fails. Therefore, the best way to avoid problems and maximize profits is to get a list of Indian agricultural machinery suppliers through a dedicated marketplace.
Therefore, there are many suppliers of agricultural machinery. Some of the biggest names in the industry include CZPT and CZPT, both of which employ thousands of people. CZPT also offers a complete line of walk-behind and riding mowers, as well as log splitters and snow blowers. In addition, the German-made CZPT tractor line is being launched in Brazil. Finally, some smaller agricultural machinery enterprises produce and sell agricultural machinery.
In the next decade, the global agricultural machinery market will grow moderately. But in the short term, crop prices are expected to fall, which will negatively affect agricultural income and the agricultural machinery market. Experts predict that this will affect the demand for agricultural machinery. These factors will continue to influence the market and help farmers make better decisions. However, no single factor can guarantee that the agricultural machinery industry will not be affected by economic changes.
In addition to tractors, other types of agricultural machinery are also widely used for agricultural purposes. Tractors are the most common type of agricultural machinery and include rotary tillers, power tillers, subsoilers and trowels. Other equipment used for planting includes planters, planters and irrigation systems. Some specialized equipment includes sprinkler systems, micro sprinklers, and soil spray technology.

China factory OEM ODM Customerized Casting Punching Parts for Heavy Agricultural Industrial Trailer Machinery /Dustile Iron/Alloy & Carbon Steel/Grey Iron/Stainless Steel   agricultural trailer brake partsChina factory OEM ODM Customerized Casting Punching Parts for Heavy Agricultural Industrial Trailer Machinery /Dustile Iron/Alloy & Carbon Steel/Grey Iron/Stainless Steel   agricultural trailer brake parts
editor by CX 2023-11-21

China Hot selling CZPT Model: Ulch Horizontal Pneumatic Hydraulic Punching Pressure Cylinder for Embossing Machinery near me factory

Product Description

ULCH Horizontal  Pneumatic hydraulic  cylinder Product Principle

Hydro pneumatic cylinder is combined the oil pressure cylinder and booster together for taking pure gas

press as   thepower source.

It makes use of the different size of booster, the crosssection area compression ratio and Pascal energy

conservation principle. Becaus  of constant pressure, when the compression area change from small to

large, the press would vary with the size, so as to raise the gas pressure to tens. 

Taking the prepress standard hydro pneumatic cylinder as an example: When the work gas pressed on the

hydraulic oil (or working piston)

surface, hydraulic oil would flow to the approach stroke cavity because of the air pressure, then the

hydraulic oil would promote theworkpiece to move rapidly. When the workpiece is meet the resistance

larger than the gas pressure, it stops moving. At this point, the booster  cavity start moving because of the

signal (or pneumatic signal), then achieve the purpose of moding products!

Product  Model information 

Product  Charaterics  
 

Item number ULCH 1-20T output

 air over oil pressure cylinder

Air driven 3-8 Bar
Pressure
Working temperatre 0-55 degrees
anti-pressure of oil tank  300 kg/cm2
Working frequency 15-25 times
High pressure output capacity 1-20T
Installation way From top to bottom,if need to change way ,should customize it

Main  Technical Drawing of ULCH Horizontal  type hydro pneumatic cylinder 

Advantages of the air oil pressure cylinder

Fast speed: The action speed is faster than the hydraulic drive and it is more stability than pneumatic drive;

Easy to use: The cylinder body device is simple, so it is easy to adjust the output and facilitate to use and maintain;

High output: It can reach the highest output of oil hydraulic machine under same conditions, which can not be achieved by the pure pneumatic machine;

Low price: The price is lower than the oil pressure system;

Easy to maintain: The simple structure is easier to maintain than the oil pressure system;

Low energy consumption: When continue to boost or stop moving, it does not need the motor to keep working as the hydraulic system, then the energy can be saved. And it is convenient to take the power source, so the actual energy consumption is equivalent to 10%-30% of hydraulic power system;

No leakage: Energy conversion is easy with zero leakage, so not worry about the environmental pollution;

No harm to the die: In order to meet the technology needs, stamping pressure and the work stroke can keep within the provided area without adjustable levels;

Easy installation: There are several ways to in stall according to different work environments at any angle and position;

Soft landing: Soft-stamping technology reduce the noise to protect the die;

Fault less: No temperature rising problems unlike the hydraulic system;

Small space: Space area can be less than 50% compare with normal air cylinder and hydraulic station;

Less fault : No temperature rising problems unlike the hydraulic system;\

The energy loss comparison chart of air liquid pressurized cylinder and pneumatic cylinder

The ratio of air consumption takes hydropneumatic cylinder and pneumatic cylinder with the same output as the example: When the

working air pressure is 6kg/cm² and the diameter is 320mm, the pneumatic cylinder reaches 4800kg, but the output of hydropneumatic

cylinder is 4800kg and the diameter is 80mm. When the stroke is the same 100mm(the model of pneumatic cylinder is QGB 320*100 and

the hydropneumatic cylinder is ULCA-80-100-10E-5T), the hydro-pneumatic cylinder consumes 2575cm³ air while the pneumatic cylinder

is 15790cm³,refers to the drawing:

The examples of practical application

 

Screw Shaft Types

If you're looking for a screw shaft, but aren't sure which type to buy, you're in luck. In this article, we'll talk about the different types, including Threaded shank, Round head, and Machined. Once you've read it, you'll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
screwshaft

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft's grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it's important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You'll be amazed by the results of the work of these ball screw nuts.
screwshaft

Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress 2 pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as 1 with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is 8 mm in diameter but has a thread pitch of 1 mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it's important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
screwshaft

Self-locking mechanism

A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.

China Hot selling CZPT Model: Ulch Horizontal Pneumatic Hydraulic Punching Pressure Cylinder for Embossing Machinery     near me factory China Hot selling CZPT Model: Ulch Horizontal Pneumatic Hydraulic Punching Pressure Cylinder for Embossing Machinery     near me factory

China OEM CZPT Ulfa Fast Speed Pneumatic Hydraulic Punching Pressure Cylinder for Automatic Machinery with Free Design Custom

Product Description

Air and oil pressurized cylinder Product Principle

Hydro pneumatic cylinder is combined the oil pressure cylinder and booster together for taking pure gas

press as   thepower source.

It makes use of the different size of booster, the crosssection area compression ratio and Pascal energy

conservation principle. Becaus  of constant pressure, when the compression area change from small to

large, the press would vary with the size, so as to raise the gas pressure to tens. 

Taking the prepress standard hydro pneumatic cylinder as an example: When the work gas pressed on the

hydraulic oil (or working piston)

surface, hydraulic oil would flow to the approach stroke cavity because of the air pressure, then the

hydraulic oil would promote theworkpiece to move rapidly. When the workpiece is meet the resistance

larger than the gas pressure, it stops moving. At this point, the booster  cavity start moving because of the

signal (or pneumatic signal), then achieve the purpose of moding products!

Product  Model information 

Product  Charaterics  
 

Item number ULFA 1-20T output

 air over oil pressure cylinder

Air driven 3-8 Bar
Pressure
Working temperatre 0-55 degrees
anti-pressure of oil tank  300 kg/cm2
Working frequency 15-25 times
High pressure output capacity 1-20T
Installation way From top to bottom,if need to change way ,should customize it

Main  Technical Drawing of ULFA type hydro pneumatic cylinder 

Advantages of the air oil pressure cylinder

Fast speed: The action speed is faster than the hydraulic drive and it is more stability than pneumatic drive;

Easy to use: The cylinder body device is simple, so it is easy to adjust the output and facilitate to use and maintain;

High output: It can reach the highest output of oil hydraulic machine under same conditions, which can not be achieved by the pure pneumatic machine;

Low price: The price is lower than the oil pressure system;

Easy to maintain: The simple structure is easier to maintain than the oil pressure system;

Low energy consumption: When continue to boost or stop moving, it does not need the motor to keep working as the hydraulic system, then the energy can be saved. And it is convenient to take the power source, so the actual energy consumption is equivalent to 10%-30% of hydraulic power system;

No leakage: Energy conversion is easy with zero leakage, so not worry about the environmental pollution;

No harm to the die: In order to meet the technology needs, stamping pressure and the work stroke can keep within the provided area without adjustable levels;

Easy installation: There are several ways to in stall according to different work environments at any angle and position;

Soft landing: Soft-stamping technology reduce the noise to protect the die;

Fault less: No temperature rising problems unlike the hydraulic system;

Small space: Space area can be less than 50% compare with normal air cylinder and hydraulic station;

Less fault : No temperature rising problems unlike the hydraulic system;\

The energy loss comparison chart of air liquid pressurized cylinder and pneumatic cylinder

The ratio of air consumption takes hydropneumatic cylinder and pneumatic cylinder with the same output as the example: When the

working air pressure is 6kg/cm² and the diameter is 320mm, the pneumatic cylinder reaches 4800kg, but the output of hydropneumatic

cylinder is 4800kg and the diameter is 80mm. When the stroke is the same 100mm(the model of pneumatic cylinder is QGB 320*100 and

the hydropneumatic cylinder is ULCA-80-100-10E-5T), the hydro-pneumatic cylinder consumes 2575cm³ air while the pneumatic cylinder

is 15790cm³,refers to the drawing:

The examples of practical application

 

Analytical Approaches to Estimating Contact Pressures in Spline Couplings

A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts - a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
splineshaft

Modeling a spline coupling

Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You'll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you'll be presented with a geometric representation of the spline coupling model 20.

Creating a spline coupling model 20

The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20's geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click "Next" to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
splineshaft

Analysing a spline coupling model 20

An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline.
The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
splineshaft

Misalignment of a spline coupling

A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment - 0.02 mm and 0.08 mm - with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.

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