Thrust washer for hydraulic torque converter

Abstract

The utility model relates to a hydraulic torque converter, provides a thrust washer for the hydraulic torque converter, aims to solve the problem that the flattening development of the hydraulic torque converter cannot be met, is arranged between two rotating bodies in the hydraulic torque converter, and comprises an annular thrust washer body and a thrust washer body arranged on one side of the annular thrust washer body, a plurality of clamping jaws are uniformly distributed along the circumference of the outer ring of the annular thrust washer body; each clamping jaw extends in the parallel and axial direction, and the inner side face of the extending section of each clamping jaw is used for being attached to the outer surface of a rotating body to conduct radial positioning on the annular thrust washer body. Claw hooks are arranged on the inner sides of the outer end parts of the clamping claws and are used for fixing the annular thrust washer body on a rotating body and axially positioning the annular thrust washer body; the multiple lubricating oil grooves are formed in the two sides of the annular thrust washer body and used for keeping the two sides of the annular thrust washer body lubricated, the overall structure is simple, and the production cost is low.

Description

Technical Field

[0001] The utility model relates to a hydraulic torque converter, in particular to a thrust washer used for the hydraulic torque converter. Background Art

[0002] With the rapid development of the automobile industry, the integration of the whole vehicle is getting higher and higher, and the standards for each automobile part are more stringent. They need to meet the requirements of small size and light weight, especially for assembly parts such as engines and transmissions. Their overall size and weight need to be adjusted to meet market demand.

[0003] Thrust bearings, gaskets and other parts are widely used in automobile transmissions. Thrust bearings contain balls, which make them wider in axial dimension. The layout will increase the axial space of the assembly structure, among which the torque converter is a component that occupies a relatively large space. Now the torque converter products are required to develop in the direction of flattening, and the use of thrust bearings will not be able to meet the development needs of the industry.

[0004] In existing automobile products, gaskets are often used to directly replace thrust bearings to reduce the axial size of the mechanical structure. However, due to the large gap between the pump wheel, turbine wheel, and guide wheel of the torque converter, the gasket cannot be completely fixed, and there is a risk of left and right movement and disengagement, which may cause damage to the torque converter and affect the normal use of the automobile transmission.

[0005] Chinese patent CN 219432410 U discloses a planetary carrier axial anti-movement assembly, including a wear member and a thrust washer, the thrust washer including a steel back layer for contacting the planetary carrier and an alloy metal layer arranged on the steel back layer, the thrust washer also includes a PTFE layer arranged on the alloy metal layer and for contacting the wear member, the alloy metal layer is located between the steel back layer and the PTFE layer. Although the planetary carrier axial anti-movement assembly in the application document can prevent the gasket from moving and reduce stress concentration, it has poor wear resistance and a short service life and cannot meet actual production needs. Therefore, it is necessary to design a positioning and wear-resistant gasket to meet the assembly environment. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the thrust bearing used in the existing torque converter causes the axial size of the assembly to be too large, which cannot meet the demand for the flattening development of the torque converter. When the traditional gasket is used to replace the thrust bearing, it cannot be completely fixed in the torque converter, and there is a risk of moving left and right and falling out, or the wear resistance is poor and the service life is short. Technical problems, and a thrust gasket for a torque converter is proposed.

[0007] To achieve the above purpose, the solution proposed by the utility model is:

[0008] A thrust washer for a hydraulic torque converter, used to be arranged between two rotating bodies in the hydraulic torque converter, and its special features are: comprising an annular thrust washer body, and a plurality of claws arranged on one side of the annular thrust washer body and evenly distributed along the outer circumference of the annular thrust washer body;

[0009] Each of the claws extends in parallel with the axial direction, and the inner side surface of the extension section is used to fit with the outer surface of the rotating body to radially position the annular thrust washer body; a claw hook is provided on the inner side of the outer end of the claw, and the claw hook is used to fix the annular thrust washer body on the rotating body to axially position the annular thrust washer body;

[0010] A plurality of lubricating oil grooves are arranged on both sides of the annular thrust washer body, so as to keep both sides of the annular thrust washer body lubricated.

[0011] Furthermore, the lubricating oil grooves on one side of the annular thrust washer body include a plurality of mutually parallel first oil grooves and a plurality of mutually parallel second oil grooves intersecting with the first oil grooves, for keeping the annular surface of one side of the annular thrust washer body lubricated.

[0012] Furthermore, the first oil groove and the second oil groove intersect each other perpendicularly, one of the multiple first oil grooves is arranged along the diameter direction, and the other first oil grooves are located on both sides of the first oil groove, and the distances between adjacent oil grooves are equal; the arrangement method of the multiple second oil grooves is the same as the arrangement method of the first oil grooves.

[0013] Furthermore, the lubricating oil groove on the other side of the annular thrust washer body includes an annular oil groove and a plurality of third oil grooves arranged along the radial direction of the annular thrust washer body, and the plurality of third oil grooves intersect with the annular oil groove to keep the annular surface on the other side of the annular thrust washer body lubricated.

[0014] Furthermore, four claws are evenly distributed along the outer circumference of the annular thrust washer body.

[0015] Furthermore, the annular thrust washer body is made of PI or PAI material.

[0016] Furthermore, there are five first oil grooves and five second oil grooves each, and they intersect each other perpendicularly.

[0017] Furthermore, there are four third oil tanks.

[0018] Beneficial effects of the utility model:

[0019] [1] The annular thrust washer body in the utility model can replace the thrust bearing, act between two relatively rotating bodies, bear the axial load, and the overall structure is relatively simple and easy to implement. Its axial size is small and its weight is lighter. It can be applied to different transmissions, has low production cost and high safety performance.

[0020] [2] The annular thrust washer body of the utility model can be axially positioned by means of a clamping claw to prevent the annular thrust washer body from moving left and right, thereby realizing a self-locking function and greatly improving the reliability of the annular thrust washer body.

[0021] [3] The annular thrust washer body of the utility model can be radially limited by the inner side surface of the claw extension section being in contact with the outer surface of the rotating body to prevent the annular thrust washer body from radial displacement or falling out, thereby further improving the stability of the annular thrust washer body.

[0022] [4] The annular thrust washer body of the utility model is provided with oil groove structures on both sides of the ring surface, which not only provides a flow channel for the transmission oil, but also ensures the lubrication of the surface of the annular thrust washer body, reduces its wear, increases its durability, and greatly prolongs the service life of the annular thrust washer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of an embodiment of a thrust washer for a hydraulic torque converter of the utility model;

[0024] Figure 2 It is a cross-sectional structural diagram of an embodiment of the utility model;

[0025] Figure 3 In the embodiment of the utility model Figure 1 Rear view of

[0026] Reference numerals:

[0027] 1-annular thrust washer body, 2-claw, 3-claw hook, 4-first oil groove, 5-second oil groove, 6-annular oil groove, 7-third oil groove. DETAILED DESCRIPTION

[0028] like Figure 1 As shown, a thrust washer for a hydraulic torque converter is used to be arranged between two rotating bodies in the hydraulic torque converter, including an annular thrust washer body 1, the structure of the annular thrust washer body 1 mainly includes a plurality of claws 2, a claw hook 3, a first oil groove 4, a second oil groove 5, an annular oil groove 6 and a third oil groove 7; a plurality of claws 2 are evenly distributed on one side of the annular thrust washer body 1 and along the circumference of the outer ring of the annular thrust washer body 1, and the annular thrust washer body 1 is made of PI or PAI material;

[0029] like Figure 2As shown, each claw 2 extends in parallel with the axial direction, and the inner side surface of the extension section is used to fit with the outer surface of the rotating body. The diameter of the inner side surface and the outer diameter of the rotating body part fixed by the claw are matched with a small gap, so as to realize the radial limitation of the thrust washer and prevent it from radial displacement or falling out;

[0030] Four claws 2 are evenly arranged on the outer circumference of the annular thrust washer body 1, and claw hooks 3 are arranged on the inner sides of the outer ends of the claws 2. The claws 2 can fix the annular thrust washer body 1 on the required rotating body through the claw hooks 3 to achieve axial positioning, thereby preventing the annular thrust washer body 1 from moving left and right;

[0031] The annular thrust washer body 1 acts between two relatively rotating bodies and bears axial loads. The overall structure is relatively simple and easy to implement. It has a small axial size, a lighter weight, and a high safety performance.

[0032] like Figure 3 As shown, five first oil grooves 4 and five second oil grooves 5 are arranged on the annular surface of the annular thrust washer body 1 near the extended end of the claw 2. The five first oil grooves 4 and the five second oil grooves 5 intersect each other vertically. The first oil grooves 4 and the second oil grooves 5 provide lubrication oil paths for the transmission oil and ensure the lubrication of the thrust washer surface. When the oil passes through, the surface of the annular thrust washer body 1 can be lubricated, thereby reducing the wear of the annular thrust washer body 1 and its matching parts caused by relative rotation and increasing its durability.

[0033] An annular oil groove 6 and four third oil grooves 7 are provided on the annular surface of the other side of the annular thrust washer body 1. Four third oil grooves 7 are provided along the radial direction of the annular thrust washer body 1. The four third oil grooves 7 intersect with the annular oil groove 6. The annular oil groove 6 and the third oil groove 7 can provide a flow channel for the oil of the torque converter and ensure the lubrication of the thrust washer surface. This embodiment solves the problems that the traditional gasket cannot be completely fixed and has poor wear resistance. It not only ensures that the annular thrust washer body 1 can realize the self-locking function and improves its structural stability, but also provides the oil channel required for the surface lubrication of the structure, prolongs the service life of the annular thrust washer body 1, saves production costs, and improves the overall working efficiency of the torque converter.

Claims

1. A thrust washer for a hydraulic torque converter, used to be arranged between two rotating bodies in the hydraulic torque converter, characterized in that: It comprises an annular thrust washer body (1), and a plurality of claws (2) arranged on one side of the annular thrust washer body (1) and evenly distributed along the outer circumference of the annular thrust washer body (1); Each of the claws (2) extends in parallel with the axial direction, and the inner side surface of the extended section is used to fit with the outer surface of the rotating body to radially position the annular thrust washer body (1); a claw hook (3) is provided on the inner side of the outer end of the claw (2), and the claw hook (3) is used to fix the annular thrust washer body (1) on the rotating body to axially position the annular thrust washer body (1); A plurality of lubricating oil grooves are provided on both sides of the annular thrust washer body (1) so as to keep both sides of the annular thrust washer body (1) lubricated.

2. A thrust washer for a torque converter according to claim 1, characterized in that: The lubricating oil grooves on one side of the annular thrust washer body (1) include a plurality of mutually parallel first oil grooves (4) and a plurality of mutually parallel second oil grooves (5) intersecting with the first oil grooves (4), and used to keep the annular surface of one side of the annular thrust washer body (1) lubricated.

3. A thrust washer for a torque converter according to claim 2, characterized in that: The first oil groove (4) and the second oil groove (5) intersect each other perpendicularly; one of the plurality of first oil grooves (4) is arranged along the diameter direction, and the remaining first oil grooves (4) are located on both sides of the first oil groove (4), and the distances between adjacent oil grooves are equal; the arrangement method of the plurality of second oil grooves (5) is the same as the arrangement method of the first oil groove (4).

4. A thrust washer for a torque converter according to any one of claims 2 or 3, characterized in that: The lubricating oil groove on the other side of the annular thrust washer body (1) comprises an annular oil groove (6) and a plurality of third oil grooves (7) arranged along the radial direction of the annular thrust washer body (1); the plurality of third oil grooves (7) all intersect with the annular oil groove (6) and are used to keep the annular surface on the other side of the annular thrust washer body (1) lubricated.

5. A thrust washer for a torque converter according to claim 4, characterized in that: Four claws (2) are evenly distributed along the outer circumference of the annular thrust washer body (1).

6. A thrust washer for a torque converter according to claim 5, characterized in that: The annular thrust washer body (1) is made of PI or PAI material.

7. A thrust washer for a torque converter according to claim 6, characterized in that: There are five first oil grooves (4) and five second oil grooves (5), which intersect each other perpendicularly.

8. The thrust washer for a torque converter according to claim 7, characterized in that: There are four third oil grooves (7).

Images