CN201730974U

CN201730974U - Slippage universal joint constant velocity

Info

Publication number: CN201730974U
Application number: CN2010202654017U
Authority: CN
Inventors: 苏俊峰; 许炎
Original assignee: WENZHOU GSP AUTOMOTIVE GROUP CO Ltd
Current assignee: WENZHOU GSP AUTOMOTIVE GROUP CO Ltd
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-02-02
Anticipated expiration: 2020-07-16

Abstract

A slippage universal joint constant velocity free tripod assembly solves the problem that the tripod ball assembly in prior art has high frictional resistance and small transmission swing angle, and is characterized in that: the section of a pin shaft of (5) of a tripod (1) is ellipse, and the inner wall of the bearing inner ring (2) is toroidal surface. The slippage universal joint constant velocity free tripod assembly has small frictional resistance, large transmission swing angle and long service life.

Description

Sliding universal joint constant speed free three ball pin assemblies

Technical field:

The utility model relates to a kind of constant velocity universal joint, is specifically related to a kind of sliding universal joint constant speed free three ball pin assemblies.

Background technique:

Sliding constant velocity universal joint is mainly used in the parts that make in the car drivetrain system between the diaxon that has angle with the unequal angular velocity transmitting torque.Existing sliding constant velocity universal joint mainly is made up of slippage end housing and three ball pin assemblies, three ball pin assemblies are installed in the alley of slippage end housing inside, three ball pin assemblies comprise spider, bearing inner race, ball and needle roller, bearing inner race is enclosed within outside the bearing pin of spider, between bearing inner race and the ball needle roller is installed, bearing inner race and needle roller are spacing by the circlip that is stuck in the ball inwall.Have the problem that surface friction drag is big, the transmission pivot angle is little during the operation of three ball pin assemblies, reducing surface friction drag is an important means of enhancing product performance.

The model utility content:

Surface friction drag reaches the little deficiency of transmission pivot angle greatly when moving in order to overcome existing three ball pin assemblies, the utility model provides a kind of sliding universal joint constant speed free three ball pin assemblies, and these sliding universal joint constant speed free three ball pin assemblies have the advantages that surface friction drag is little, the transmission pivot angle reaches long service life greatly.

The technical solution of the utility model is: these sliding universal joint constant speed free three ball pin assemblies comprise spider, bearing inner race, ball and needle roller, bearing inner race is enclosed within outside the bearing pin of spider, between bearing inner race and the ball needle roller is installed, bearing inner race and needle roller are spacing by the circlip that is stuck in the ball inwall, the bearing pin cross section of spider is oval, and the inwall of bearing inner race is a toroidal surface.

The beneficial effects of the utility model are: owing to take such scheme, form point between the bearing pin of the utility model spider when operation and the bearing inner race and contact, reduced surface friction drag, prolonged working life; Simultaneously also increased the transmission pivot angle, the transmission pivot angle is increased to 30 ° by original 22 °, and the fit up gap also is reduced to 0.03mm by original 0.15mm, and the utility model can freely swing in the slippage end housing.

Description of drawings:

Accompanying drawing 1 is a structure sectional view of the present utility model;

Accompanying drawing 2 is A-A structure sectional views among Fig. 1;

Accompanying drawing 3 is structure sectional views of Fig. 1 middle (center) bearing inner ring 2.

1-spider among the figure, 2-bearing inner race, 3-ball, 4-needle roller, 5-bearing pin, 6-circlip.

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By Fig. 1 in conjunction with Fig. 2, shown in Figure 3, these sliding universal joint constant speed free three ball pin assemblies comprise spider 1, bearing inner race 2, ball 3 and needle roller 4, bearing inner race 2 is enclosed within outside the bearing pin 5 of spider 1, needle roller 4 is installed between bearing inner race 2 and the ball 3, bearing inner race 2 and needle roller 4 are spacing by the circlip 6 that is stuck in ball 3 inwalls, bearing pin 5 cross sections of spider 1 are oval, and the inwall of bearing inner race 2 is a toroidal surface.

The utility model forms to put between bearing pin 5 and the bearing inner race 2 of when operation spider 1 and contacts, and has reduced surface friction drag, has prolonged working life; Simultaneously also increased the transmission pivot angle, the transmission pivot angle is increased to 30 ° by original 22 °, and the fit up gap also is reduced to 0.03mm by original 0.15mm, and the utility model can freely swing in the slippage end housing.

Claims

1. sliding universal joint constant speed free three ball pin assemblies, comprise spider (1), bearing inner race (2), ball (3) and needle roller (4), bearing inner race (2) is enclosed within outside the bearing pin (5) of spider (1), between bearing inner race (2) and the ball (3) needle roller (4) is installed, bearing inner race (2) and needle roller (4) are spacing by the circlip (6) that is stuck in ball (3) inwall, it is characterized in that: bearing pin (5) cross section of spider (1) is for oval, and the inwall of bearing inner race (2) is a toroidal surface.