Duplex universal joint capable of axially sliding
A universal joint and sliding technology, which is applied in the field of universal joints, can solve the problems of small transmission angle, large friction coefficient of a single ball ring, and easy falling off of the ball ring, so as to reduce friction, improve safety performance, and improve product life Effect
Active Publication Date: 2012-12-19
GSP AUTOMOTIVE GRP WENZHOU
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Problems solved by technology
[0003] In order to overcome the deficiencies of the background technology, the present invention provides a duplex axially slidable universal joint, which mainly solves the problem of the large friction coefficient of a single ball ring in the existing tripod-type axially slidable universal joint The problem of small angle and easy falling off of the ball ring reduces the weight of the product at the same time, simplifies the processing technology of the sliding end shell, and improves the heat dissipation performance of the product
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Embodiment Construction
[0014] The present invention will be further described below in conjunction with accompanying drawing:
[0015] Depend on figure 1 As shown, the duplex axially slidable universal joint includes a sliding end housing 1 and a tripod assembly, the tripod assembly includes a tripod 3, and the tripod 3 is provided with 3 equal parts The shaft pin 4, the end of the shaft pin 4 is equipped with a ball ring 5, the ball ring 5 is located in the ball lane 6 on the inner wall of the sliding end housing 1, the center of the three-pin frame 3 is spherical, and the three-pin The center point of the frame 3 will not change correspondingly with the slip and swing angle, and the constant velocity is good. The three-pin frame 3 is connected with the axle fork 2, and the axle fork 2 is composed of a connecting cylinder 17 and a shaft 18. The side wall of the connecting cylinder 17 has three equally divided positioning fairways 7, and the three-pin frame 3 The center is disposed in the connecti...
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The invention relates to a duplex universal joint capable of axially sliding, which mainly solves the problems that the single ball ring of the traditional tripod universal joint capable of axially sliding has great friction coefficient and small transmission angle and the ball ring is easy to fall. The duplex universal joint is characterized in that the center of the three-pin assembly (3) is shaped as a circular ball, the three-pin assembly (3) is connected with a shaft fork (2), the shaft fork (2) comprises a connecting barrel (17) and a shaft (18), the side wall of the connecting barrel (17) is provided with three equally divided positioning ball channels (7), the center of the three-pin assembly (3) is placed in the connecting barrel (17), and three shaft pins (4) on the three-pin assembly (3) are respectively provided with a positioning ball ring (8); and the three-pin assembly (3) is limited by a positioning block (9) fixed on the end face of the connecting barrel (17). The duplex universal joint capable of axially sliding realizes sliding and swing angle by using the duplex structure, and the transmission swing angle, the fit clearance, the self weight, the heat dissipation, the stability and the like of the product are increased to certain extent.
Description
technical field [0001] The invention relates to a universal joint, in particular to a duplex axially sliding universal joint. Background technique [0002] At present, the three-ball universal joint is the key transmission part in the car transmission system. The traditional three-ball universal joint that can slide axially is affected by its design structure and has the following defects: 1. The traditional three-ball Affected by its design structure, the pin-type axially sliding universal joint is generally made of 20CrMnTi for cold extrusion molding, and the heat treatment adopts the overall carburizing process. The disadvantage is that the cost of materials and processes is high, and the key fit after heat treatment The fairway will produce local deformation, which will affect the matching performance of the product. When the universal joint is working, the vibration and abnormal noise caused by the unstable matching gap will directly affect the product life. 2. When th...
Claims
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IPC IPC(8): F16D3/26
CPCF16D3/207
Inventor 许炎徐颢宇
Owner GSP AUTOMOTIVE GRP WENZHOU