CN213776134U

CN213776134U - Constant velocity universal joint drive shaft assembly equipped with antifriction gasket and eliminating abnormal sound

Info

Publication number: CN213776134U
Application number: CN202022527983.8U
Authority: CN
Inventors: 郑培瀛; 罗志强; 罗钰莹
Original assignee: NANJING GUANSHENG AUTOMOBILE PARTS CO Ltd
Current assignee: NANJING GUANSHENG AUTOMOBILE PARTS CO Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-23
Anticipated expiration: 2030-11-05

Abstract

A constant velocity universal joint drive shaft assembly is provided with an antifriction gasket and eliminates abnormal sound. The problem that the datum plane of the fixed end universal joint of the existing constant velocity universal joint driving shaft assembly is easy to wear is mainly solved. The method is characterized in that: the fixed end universal joint (2) comprises an outer bell shell (21), one end of the outer bell shell is provided with a connecting shaft (22), the outer bell shell is provided with a datum plane (23), the outer bell shell is detachably connected with a shield (4), and the shield at least covers a part of the datum plane. The utility model provides a join in marriage constant velocity universal joint drive shaft assembly of dress antifriction gasket, elimination abnormal sound, along with the extension of friction time, the difficult emergence wearing and tearing of coating on the reference surface, the persistence is strong, reduces the abnormal sound.

Description

Constant velocity universal joint drive shaft assembly equipped with antifriction gasket and eliminating abnormal sound

Technical Field

The utility model relates to an automobile parts field, concretely relates to join in marriage constant velocity cardan joint drive shaft assembly of dress antifriction gasket, elimination abnormal sound.

Background

The automobile constant velocity universal joint driving shaft assembly is an important part of an automobile, the automobile constant velocity universal joint driving shaft assembly comprises a universal joint, one end of the universal joint is connected with a power output end of an automobile gearbox, the other end of the universal joint is connected with a power input part of an automobile wheel, friction grams are coated on a universal joint reference surface at the fixed end of the traditional constant velocity universal joint driving shaft assembly, the mode can also play a role in reducing friction and abnormal sound, but the requirement for coating the friction grams is higher, the manpower, financial resources and material resources are not negligibly lost, and the requirements for raw materials, suppliers, the thickness of a coating, the uniformity and the standard requirement for inspection are higher, and the requirements for easy falling of the coating and how long time for inspection after the coating is coated are also required to be prevented. This situation is somewhat inconvenient for inspection, coating difficulty and requirements.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a join in marriage constant velocity joint drive shaft assembly of dress antifriction gasket, elimination abnormal sound has mainly solved the problem of the easy wearing and tearing of datum plane of the stiff end universal joint of present constant velocity joint drive shaft assembly.

The utility model discloses a concrete implementation scheme does:

a constant velocity universal joint driving shaft assembly provided with an anti-friction gasket and used for eliminating abnormal sound comprises an intermediate shaft, wherein one end of the intermediate shaft is provided with a fixed end universal joint, the other end of the intermediate shaft is provided with a sliding end universal joint, the fixed end universal joint comprises a bell-shaped shell, one end of the bell-shaped shell is provided with a connecting shaft, the bell-shaped shell is provided with a reference surface, the bell-shaped shell is detachably connected with a protective cover, and the protective cover at least covers part of the reference surface.

The shield is made of polytetrafluoroethylene.

The inner wall of the shield is provided with a plurality of bulges, and the bulges are contacted with the outer wall of the bell-shaped shell.

The universal joint at the sliding end comprises a shell and a dust cover, wherein one end of the dust cover is connected with the intermediate shaft through a first clamp, and the other end of the dust cover is connected with the outer wall of the shell in the circumferential direction through a second clamp.

The outer wall of the shell is provided with an annular groove, and the inner wall of the dust cover is provided with a positioning ring in clamping fit with the annular groove.

The dust cover outer wall is equipped with the constant head tank, the second clamp inner wall be equipped with constant head tank joint complex bulge loop.

The number of the bulges is four.

The utility model has the advantages that: the utility model provides a join in marriage constant velocity universal joint drive shaft assembly of dress antifriction gasket, elimination abnormal sound, along with the extension of friction time, the difficult emergence wearing and tearing of coating on the reference surface, the persistence is strong, reduces the abnormal sound.

Drawings

Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention.

Fig. 2 is a schematic view of a shield according to an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is an enlarged schematic view of fig. 1 at B.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, the constant velocity universal joint driving shaft assembly provided with the anti-friction gasket and used for eliminating abnormal sound comprises an intermediate shaft 1, wherein one end of the intermediate shaft is provided with a fixed end universal joint 2, the other end of the intermediate shaft is provided with a sliding end universal joint 3, the fixed end universal joint 2 comprises an outer shell 21, one end of the outer shell is provided with a connecting shaft 22, the outer shell is provided with a reference surface 23, the outer shell is detachably connected with a shield 4, and the shield at least partially covers the reference surface. The utility model provides a join in marriage constant velocity universal joint drive shaft assembly of dress antifriction gasket, elimination abnormal sound, along with the extension of friction time, the difficult emergence wearing and tearing of coating on the reference surface, the persistence is strong, reduces the abnormal sound. Moreover, the protective cover can be detached for replacement, thereby being more convenient for use.

In this embodiment, the shield is made of polytetrafluoroethylene, as shown. The polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-sticking property, electric insulation property and good ageing resistance.

In this embodiment, as shown, the inner shroud wall is provided with a plurality of protrusions 41 that contact the outer bell wall. The installation is convenient, and the connection is realized by adopting interference and other modes.

In this embodiment, as shown in the figure, the slip end universal joint comprises a housing 31 and a dust cover 6, wherein one end of the dust cover is connected with the intermediate shaft through a first clamp, and the other end of the dust cover is connected with the circumferential outer wall of the housing through a second clamp 72. Dustproof function and convenient installation.

In this embodiment, as shown, the outer wall of the housing is provided with an annular groove 13, and the inner wall of the dust cover is provided with a positioning ring 62 which is in snap fit with the annular groove. The installation is fixed a position, and the installation is firm.

In this embodiment, as shown in the figure, the outer wall of the dust cover is provided with a positioning groove 63, and the inner wall of the second clamp is provided with a convex ring 721 matched with the positioning groove in a clamping manner. The installation is fixed a position, and the installation is firm.

In this embodiment, as shown, there are four protrusions.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a join in marriage constant velocity cardan joint drive shaft assembly of dress antifriction gasket, elimination abnormal sound, includes jackshaft (1), jackshaft one end is equipped with stiff end universal joint (2), and the other end is equipped with end universal joint (3) that slide, its characterized in that: the fixed end universal joint (2) comprises an outer bell shell (21), one end of the outer bell shell is provided with a connecting shaft (22), the outer bell shell is provided with a datum plane (23), the outer bell shell is detachably connected with a shield (4), and the shield at least covers a part of the datum plane.

2. The constant velocity universal joint drive shaft assembly equipped with an antifriction gasket and eliminating abnormal sound according to claim 1, characterized in that: the shield is made of polytetrafluoroethylene.

3. The constant velocity universal joint drive shaft assembly equipped with an antifriction gasket and eliminating abnormal sound according to claim 2, characterized in that: the inner wall of the shield is provided with a plurality of bulges (41) which are contacted with the outer wall of the outer shell.

4. The constant velocity universal joint drive shaft assembly equipped with an antifriction gasket and eliminating abnormal sound according to claim 3, characterized in that: the universal joint at the sliding end comprises a shell (31) and a dust cover (6), wherein one end of the dust cover is connected with the middle shaft through a first clamp, and the other end of the dust cover is connected with the outer wall of the shell in the circumferential direction through a second clamp (72).

5. The constant velocity universal joint drive shaft assembly equipped with an antifriction gasket and eliminating abnormal sound according to claim 4, characterized in that: the casing outer wall is equipped with ring channel (13), the dust cover inner wall be equipped with ring channel joint complex holding ring (62).

6. The constant velocity universal joint drive shaft assembly equipped with an antifriction gasket and eliminating abnormal sound according to claim 5, characterized in that: dust cover outer wall is equipped with constant head tank (63), second clamp inner wall be equipped with constant head tank joint complex bulge loop (721).

7. The constant velocity universal joint drive shaft assembly equipped with an antifriction gasket and eliminating abnormal sound according to claim 6, characterized in that: the number of the bulges is four.