Tag Archives: micro hydraulic cylinder

China Best Sales Hydraulic Cylinder for Slurry Micro CZPT Jacking Machine near me factory

Product Description

Hydraulic cylinder

 

Product Description 

The hydraulic cylinder converts the hydraulic energy into mechanical energy and acts linear reciprocating or swinging movement..It is reliable and simple in structure.CZPT to realize reciprocating motion without the speed reducer, no transmission clearance and running smoothly,thus is widely used in all kinds of mechanical hydraulic system.The output force of hydraulic cylinder  is directly proportional to the effective piston area and the pressure differential on both sides ;Hydraulic cylinder basically consists of the cylinder barrel, the cylinder cover ,piston,piston rod, sealing device, the buffer device, and the exhaust device. The buffer device and the exhaust device depend on the specific application, and other devices are necessary

 

Packaging & Shipping
Nude Packing
Delivery Detail:
10 days after 30% deposit receiving
 
Our Services 
1.After sales services:overseas commissioning engineer available for testing and installation.
2.Working services:overseas commissioning working team for whole pipe jacking construction. 
3.On site service support;
4 12month warranty;
5 Life time service support,
6 Communicate by Web services, Phone, Email, Skype etc.
7. 7 days*24hours Hot-line & Email Service. 
8.Your inquiry related to our pipe jacking machine will be replied within 24 hours.Well-trained and experienced staff will answer all your questions in fluent English.
 
 Warranty
If quality & assembling problem caused troubles, we take responsible on spare parts and all service fees.
If misuse or human factors caused the trouble, users shall take responsible on spare parts and all service fees.
 
 Company Information
ZheJiang Xuanxuan Heavy Machinery Co.Ltd is affiliated with Weiqiang Group.It's located in HangZhou city,ZheJiang Province,is located in the center of the Yangtze River Delta,the north part close to Yangtze River, the south part close to Lake Xihu (West Lake) Dis., and East part is close to the East China Sea.Is the birthplace of modern Chinese industrial, modern equipment manufacturing city. It Has a superior geographical advantage and convenient land and sea and airtransportation conditions.
WeiQiang group was founded in 1989,More than 30 years of history, now,It Consists of several companies,such as  Weiqiang Chemical, Weiqiang machinery,  XuanXuan heavy Machinery , it was assessed as "private technology enterprises in HangZhou City","High-tech enterprises in ZheJiang Province " Private science and technology enterprises in ZheJiang province ".
ZheJiang Xuan Xuan Heavy Machinery Co., Ltd. professional design and manufacture trenchless engineering equipment,integrate Product development, manufacturing, marketing and after-sales service .Products include multi-series pipe jacking machine, shield machine, pipe jacking equipment and spare parts spare parts.
Products include multi-series pipe jacking machine, shield machine, spare parts of pipe jacking machine, shield machine,Hydraulic oil cylinder, hydraulic system, lubricating system, pneumatic system, PLC control system and non-standard equipment.The company attaches great importance to the development of new technology and new products.In recent years, In recent years, vigorously invested in the non-excavation pipe jacking equipment, hydraulic systems, and had done a lot of fruitful work.It has successfully developed a slurry balance, earth pressure balance and series of multi-type excavation products,It has been  successful application in domestic market,  
The company attaches great importance to product quality management, and establish a standardized and systematic quality management platform, strict requirements, excellence, our goal is to provide customers with high-quality engineering equipment.  Company will provide high-quality pre-sale, sale, after-sales service,Companies to provide high-quality pre-sale, sale, after-sales service, At any time, provide product consulting,   use  guidance, etc.
Adhering to the service purposes of "active", professional specialization, efficiency first " we aim to provide quality products and excellent service to our customers. To achieve the expectations of customers and exceed goals of Industry standard.
Xuan Xuan heavy industry based on long-term development strategy, follow the "conservation, security, service," the 3S product concept, and vigorously promote scientific and technological innovation, continuing to provide customers with quality products and services.
 
 FAQ
In order for you to get a better price and technical solutions. Please provide the following required parameters:
1. Project total length, distance for 1 section, how many sections will be built? 
2 Pipe type: concrete or steel etc, single length of the pipe? outer and inner diameter ? 
 3 Projects information: for water supply, sewage project? 
 4 Underground water level; 
 5 Soil type? soil report is needed.
 

 

Choosing the Right Ball Bearing for Your Application

When choosing a Ball Bearing, there are several things to consider. These factors include: the size, lubricant type, presence of corrosive agents, stray electrical currents, and more. It can be challenging to choose the right type, size, and type of ball bearing for your application. You should also carefully calculate the loads to determine the right size. Here are some tips for choosing the right Ball Bearing for your application.

Single-row

The single-row ball bearing is 1 of the most popular types of bearings. The inner and outer ring are designed with raceway grooves that are shaped slightly larger than the balls. This type of bearing has a low torque and can handle high-speed applications with minimal power loss. The radial dimensions of single-row ball bearings also vary, so it is possible to find 1 that fits your specific application. Besides the above-mentioned advantages, single-row ball bearings are also available with varying grease levels and are widely applicable to applications where the space is limited.
Single-row ball bearings are also called angular-contact ball bearings. Because of their single-row design, they are not separable and can accommodate a high-speed, heavy-duty application. Single-row angular-contact ball bearings can only handle axial load in 1 direction, and they must be installed in pairs for pure radial loads. Single-row ball bearings are a popular type of rolling bearings and can be used for a wide range of applications.
bearing

Self-aligning

The self-aligning ball bearing was invented by Sven Wingquist, a plant engineer for a textile company in Sweden. While he was responsible for making production as efficient as possible, he soon realized that the machinery he had in place wasn't working as efficiently as it could. Although ball bearings are great for reducing friction, they were not flexible enough to compensate for misalignments in the machine.
Self-aligning ball bearings have 2 rows of balls and a common sphered raceway. The inner ring is curved and combines the 2 rows of balls into 1 cage. These bearings can tolerate shaft misalignment and compensate for static angular defects. They can be used in simple woodworking machinery, ventilators, and conveying equipment. They are often the preferred choice for applications where shaft alignment is an issue.

Ceramic

A Ceramic ball bearing is a type of high-performance bearing that is available in both full-ceramic and hybrid forms. The main differences between ceramic and steel ball bearings are their construction, lubrication, and mobility. High-quality ceramic ball bearings are durable, and they are ideal for corrosive and high-temperature applications. The material used to create these bearings helps prevent electrolytic corrosion. They are also ideal for reducing the friction and lubrication requirements.
Ceramic balls are harder and less brittle than steel balls, which gives them a higher degree of rigidity. Ceramics also have a higher hardness, with a hardness of Rc75-80 compared to Rc58-64 for steel balls. Their high compressive strength is approximately 5 to 7 times greater than steel. In addition, they have a very low coefficient of friction, which allows them to spin at higher speeds and with less friction. This increases their lifespan and durability, and decreases the energy needed to turn cranks.

Steel

Unlike traditional bearings, steel balls have a relatively uniform hardness. Carbon steel, for instance, is 2.1% carbon by weight. According to the American Iron and Steel Institute, copper content must be no more than 0.40% and manganese content should not be more than 1.65 g/cm3. After carbonizing, steel balls undergo a process called sizing, which improves their roundness geometry and hardness.
The main differences between steel ball bearings and ceramic ball bearings can be traced to their different materials. Ceramic balls are made from zirconium dioxide or silicon nitride. Silicon nitride is harder than steel and resists shocks. The result is increased speed and longer service life. Polyoxymethylene acetal (PMMA) bearing balls are known for their stiffness, strength, and tolerance, but are not as common as steel ball bearings.

Plastic

The most popular types of plastic ball bearings are made of polypropylene or PTFE. These bearings are used in applications requiring higher chemical resistance. Polypropylene is a structural polymer that offers excellent physical and chemical properties, including excellent resistance to organic solvents and degreasing agents. Its lightweight, low moisture absorption rate, and good heat resistance make it an excellent choice for high-temperature applications. However, plastic bearings are not without their drawbacks, especially when operating at very high temperatures or under heavy loads.
Compared to metal bearings, plastic ball-bearings do not require lubrication. They also are highly corrosion-resistant, making them an excellent choice for wash-down applications. They are also post-, autoclave-, and gamma sterilizable. Many conventional steel ball-bearings cannot handle the high temperatures of food processing or swimming pools. In addition to high temperature applications, plastic ball bearings are resistant to chemicals, including chlorine.
bearing

Glass

Plastic sliding bearings are molded bearings made of engineering plastic. With self-lubricating modification technology, these bearings can be produced by injection molding of plastic beads. They are widely used in various industries such as office equipment, fitness and automotive equipment. In addition to plastic bearings, glass balls are used in a variety of other applications, including medical equipment. Glass ball bearings have excellent corrosion resistance, excellent mechanical properties, and are electrically insulators.
Plastic ball bearings are made of all-plastic races and cages. These bearings are suitable for applications that are exposed to acids and alkalis. Because they are cheaper than glass balls, plastic ball bearings are popular in chemical-exposed environments. Stainless steel balls are also resistant to heat and corrosion. But the main disadvantage of plastic ball bearings is that they are not as strong as glass balls. So, if weight and noise is your main concern, consider using plastic balls instead.

Miniature

The global miniature ball bearing market is expected to reach US$ 2.39 Billion by 2027, at a CAGR of 7.2%. Growth in the region is attributed to technological advancement and government initiatives. Countries such as India and China are attracting FDIs and emphasizing the establishment of a global manufacturing hub. This is boosting the market for miniature ball bearings. The miniscule ball bearings are manufactured in small quantities and are very small.
Some manufacturers produce miniature ball bearings in different materials and designs. Chrome steel is the most popular material for miniature ball bearings because of its high load capacity, low noise properties, and lower cost. But the cost of stainless steel miniature bearings is low, since the amount of steel used is minimal. Stainless steel miniature bearings are the smallest in size. Therefore, you can choose stainless steel mini ball bearings for high-speed applications.

Angular-contact

Angular-contact ball bearings have 3 components: a cage, inner ring, and balls. Angular-contact ball bearings can support high axial and radial loads. Various design and manufacturing attributes make angular-contact ball bearings suitable for a variety of applications. Some features of this bearing type include a special lubricant, different cage materials, and different coatings.
The size of an angular-contact ball bearing is determined by the design units: outer ring width, axial load, and radial load. Depending on the type of application, an angular-contact ball bearing may be manufactured in double-row, triple-row, or quadruple-row configurations. Angular contact ball bearings can be classified according to their design units, which range from metric to imperial. A higher ABEC number means tighter tolerances. To determine the tolerance equivalent of a particular bearing, consult a standard Angular-contact ball bearing table.
Angular-contact ball bearings feature high and low-shoulder configurations. They have two-dimensional races that accommodate axial and radial loads. They are available in self-retaining units with solid inner and outer rings, and ball and cage assemblies. Cages made of cast and wrought brass are the most popular, but lightweight phenolic cages are also available. The latter is a better choice because it doesn't absorb oil and has lower rolling friction.
bearing

Materials

When it comes to the construction of a ball bearing, high-quality raw materials are a crucial component. These materials not only affect the overall quality of a ball bearing, but also influence the cost. That's why you should pay close attention to raw material quality. In addition to that, raw materials should be tested several times before the manufacturing process to ensure quality. Read on for some information about the different types of materials used to make ball bearings.
Steel is the most common material for ball bearings. Most ball bearings contain stainless steel balls, which are remarkably corrosion-resistant. They are also resistant to saltwater and alkalis. However, stainless steel balls are heavier than plastic ones, and they are also magnetic, which may be a drawback in some applications. If you're looking for a metal-free option, glass balls are the way to go. They're sturdy, lightweight, and resistant to a wide range of chemicals.

China Best Sales Hydraulic Cylinder for Slurry Micro CZPT Jacking Machine     near me factory China Best Sales Hydraulic Cylinder for Slurry Micro CZPT Jacking Machine     near me factory

China high quality CZPT Binotto Penta Kind Under Body Umb Ume Micro Telescopic Hydraulic Cylinder for Small Light Duty 1 Ton 2 Ton 3 Ton 4 Ton 5 Ton Dump Truck and Tipper Trailer with Great quality

Product Description

micro telescopic hydraulic cylinder for dump truck and tipper trailer

 

Product Description

 

Hyva & CZPT & Custom hoist & Xihu (West Lake) Dis.r type micro telescopic hydraulic cylinder are used for Dump Truck, Tipper Truck, Trailer, Agricultural Machinery, Garbage Truck, Landing Platform etc.

Tsingshi hydraulic Customers,  MAN, JAC, VOLVO, SHACMAN, DAF, JMC,  HUNO, CIMC, SINOTRUK, TATRA,BENS,XIHU (WEST LAKE) DIS.FENG,  FOTON,etc.

1.Micro telescopic hydraulic cylinder Each stage electroplate hard chrome;
2.lighter and easier to maintenance;
3.High quality alloy seamless steel pipe have better mechanical properties;
4.The world famous brands of seals, such as HALLITE, PARKER,etc;
5.World-class processing technology ensures stable and reliable quality.

                  

NO ITEM micro telescopic hydraulic cylinder DATA
1 Material Carbon Steel, Alloy Steel, 27SiMn,45#,20#,etc
2 Honed tube 40-300mm, Heat treatment, honing, rolling
3 Honed tube 30-280mm, plated nickel or hard Chrome or ceramic
4 Seal kit Parker, Merkel, Hallite, Kaden, etc
5 Coating Sandblasting, primer paint, middle paint, finish paint,
Color can paint according to customer demands.
6 Technology Parker,custom hoist, hyco,HYVA, Meiller

SAT,DAT

7 Mounting type Pin-eye , flange, trunnion mount,ball mount, screw thread.
FC, FE, FEE, FSE,TPIN
8 Working medium Hydraulic Oil
9 Working pressure 16-20Mpa mini telescopic hydraulic cylinder
10 Temperature range -50°C to +100°C

Detailed Photos


 

Company Profile

Tsingshi hydraulic is a hydraulic telescopic cylinder for dump tipper truck company which takes up with hydraulic design, R&D, manufacturer, sell and service hydraulic products-micro telescopic hydraulic cylinder.

-micro telescopic hydraulic cylinder Certification ISO9001 TS16949, etc;
-micro telescopic hydraulic cylinder Export to North America, South America, Australia, South Korea, Southeast Asia, South Africa, Europe, Middle East, etc;
-ODM&OEM micro telescopic hydraulic cylinder according to client's requirements;
-Professional manufacturer& supplier of micro telescopic hydraulic cylinder over 30 years;
-The micro telescopic hydraulic cylinder can be used for Dump Truck, Tipper Truck, Trailer, Agricultural Machinery, Garbage Truck,Landing Platform etc; We can produce the follow brand hydraulic cylinder. HYVA, BINOTTO, EDBRO, PENTA, MAILHOT, CUSTOM HOIST, MUNCIE, METARIS, HYDRAULEX GLOBAL, HYCO, PARKER, COMMERCIAL HYDRAULICS, MEILLER. WTJX, XT, JX, HCIC, ZX, SZ, SJ.

 

CUSTOMERS PHOTOS

 

QUALITY GUARANTEE

 

HIGH QUALITITY GUARANTEE-cylinder hydraulic telescopic for dump truck and tipper trailer
-7*24 service.
-Competitive price.
-Professional technical team.
-Perfect after-sales service system.
-ODM&OEM Hydraulic Cylinder according to customer needs.
-Strong Hydraulic Cylinder production capacity to ensure fast delivery.
-Guarantee Quality. Every process must be inspected, all products need be tested before leaving the factory.

< telescopic hydraulic cylinder Leak Test

<mini telescopic hydraulic cylinder Buffer Test

<small telescopic hydraulic cylinder Reliability Test

<micro telescopic hydraulic cylinder Full Stroke Test

<micro telescopic hydraulic cylinder Trial Operation Test

<micro telescopic hydraulic cylinder Pressure Tight Test

<micro telescopic hydraulic cylinder Load Efficiency Test
<micro telescopic hydraulic cylinder Start-up Pressure Test
<micro telescopic hydraulic cylinder Testing the Effect of Limit

SALES AND SERVICE

 



 

PRODUCTS SERIES

 

ONE WORLD ONE LOVE

 


 

 

How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
splineshaft

Involute splines

An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a "permissible" Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.
splineshaft

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.

Misalignment

To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
splineshaft

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling's application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.

China high quality CZPT Binotto Penta Kind Under Body Umb Ume Micro Telescopic Hydraulic Cylinder for Small Light Duty 1 Ton 2 Ton 3 Ton 4 Ton 5 Ton Dump Truck and Tipper Trailer     with Great qualityChina high quality CZPT Binotto Penta Kind Under Body Umb Ume Micro Telescopic Hydraulic Cylinder for Small Light Duty 1 Ton 2 Ton 3 Ton 4 Ton 5 Ton Dump Truck and Tipper Trailer     with Great quality

China Standard China Supplier Tsish Custom Design Small Piston Micro Bore Mini Rod Short Stroke Double Acting Hydraulic Cylinder for Scissor Lift Table Farm Tractor Loader with Great quality

Product Description

small piston double acting hydraulic cylinder lift farm tractor loader

 

Product Description

 

Eaton, parker, hercules, prince, cross type double acting hydraulic cylinder are used for Trailer, Agricultural Machinery, Garbage Truck, Landing Platform etc.

Tsingshi hydraulic Customers,  MAN, JAC, VOLVO, SHACMAN, DAF, JMC,  HUNO, CIMC, SINOTRUK, TATRA,BENS,XIHU (WEST LAKE) DIS.FENG,  FOTON,etc.

1.Piston rod electroplate hard chrome;
2.lighter and easier to maintenance double acting hydraulic cylinder;
3.High quality alloy seamless steel pipe have better mechanical properties;
4.The world famous brands of seals, such as Parker, Merkel, Hallite, Kaden, etc;
5.World-class processing technology ensures stable and reliable quality.

                  

NO ITEM double acting hydraulic cylinder DATA
1 Material Carbon Steel, Alloy Steel, 27SiMn,45#,20#,etc
2 Honed tube 40-300mm, Heat treatment, honing, rolling
3 Honed tube 30-280mm, plated nickel or hard Chrome or ceramic
4 Seal kit Parker, Merkel, Hallite, Kaden, etc
5 Coating Sandblasting, primer paint, middle paint, finish paint,
Color can paint according to customer demands.
6 Technology double acting hydraulic cylinder
7 Mounting type Pin-eye , flange, trunnion mount,ball mount, screw thread.
FC, FE, FEE, FSE,TPIN
8 Working medium Hydraulic Oil
9 Working pressure 16-20Mpa double acting hydraulic cylinder
10 Temperature range -50°C to +100°C

Detailed Photos


 

Company Profile

Tsingshi hydraulic is a hydraulic telescopic cylinder for dump tipper truck company which takes up with hydraulic design, R&D, manufacturer, sell and service hydraulic products-double acting hydraulic cylinder.

-double acting hydraulic cylinder Certification ISO9001 TS16949, etc;
-mini double acting hydraulic cylinder Export to North America, South America, Australia, South Korea, Southeast Asia, South Africa, Europe, Middle East, etc;
-ODM&OEM small double acting hydraulic cylinder according to client's requirements;
-Professional manufacturer& supplier of Hydraulic Cylinders over 30 years;
-The micro double acting hydraulic cylinder can be used for Dump Truck, Tipper Truck, Trailer, Agricultural Machinery, Garbage Truck,Landing Platform etc; We can produce the follow brand hydraulic cylinder. HYVA, BINOTTO, EDBRO, PENTA, MAILHOT, CUSTOM HOIST, MUNCIE, METARIS, HYDRAULEX GLOBAL, HYCO, PARKER, COMMERCIAL HYDRAULICS, MEILLER. WTJX, XT, JX, HCIC, ZX, SZ, SJ.

 

CUSTOMERS PHOTOS

 

QUALITY GUARANTEE

 

HIGH QUALITITY GUARANTEE-double acting hydraulic cylinder
-7*24 service.
-Competitive price.
-Professional technical team.
-Perfect after-sales service system.
-ODM&OEM Hydraulic Cylinder according to customer needs.
-Strong Hydraulic Cylinder production capacity to ensure fast delivery.
-Guarantee Quality. Every process must be inspected, all products need be tested before leaving the factory.

<hydraulic cylinder double acting Leak Test

<mini hydraulic cylinder Buffer Test

<small hydraulic cylinder Reliability Test

<micro hydraulic cylinder Full Stroke Test

<mini double acting hydraulic cylinder Operation Test

<micro double acting hydraulic cylinder Pressure Tight Test

<small double acting hydraulic cylinder Load Efficiency Test
<double action hydraulic cylinder Start-up Pressure Test
<double acting hydraulic cylinder Testing the Effect of Limit

SALES AND SERVICE

 



 

PRODUCTS SERIES

 

ONE WORLD ONE LOVE

 


 

 

How to Choose the Right Worm Shaft

You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
worm shaft

Concave shape

The concave shape of a worm's shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements.
The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit.
The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening.
When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions.
The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
worm shaft

Multiple-thread worms

Multi-thread worms can be divided into sets of one, two, or 4 threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time.
The tangent plane of a worm's pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r" varies proportionally with the worm's radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm's length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the 2 surfaces is optimal.
The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm's teeth. A specialized machine can cut the worm gears for maximum efficiency.

Double-thread worm gears

In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space.
Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from 1 worm gear to another, so it is important to check the backlash at several points. If the backlash is different in 2 places, this indicates that the teeth may have different spacing.
Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in 1 step.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel's smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
worm shaft

Self-locking worm drive

A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery's Handbook.
A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive 1 worm at a time.
Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you're thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice.
An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm's threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.

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