CN213206374U

CN213206374U - Energy-saving lightweight wear-resistant compact rear wheel drive shaft assembly

Info

Publication number: CN213206374U
Application number: CN202021997234.5U
Authority: CN
Inventors: 王必富; 诸葛建双; 周俭
Original assignee: NANJING GUANSHENG AUTOMOBILE PARTS CO Ltd
Current assignee: NANJING GUANSHENG AUTOMOBILE PARTS CO Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-05-14
Anticipated expiration: 2030-09-14

Abstract

An energy-saving light-weight wear-resistant compact rear wheel drive shaft assembly. The problem of the too early stoving of grease in the present universal joint of sliding end, cause the internal component because of lubricated not enough and too early wearing and tearing is mainly solved. The method is characterized in that: the sliding end universal joint comprises a first shell, the fixed end universal joint comprises a second shell, a first cavity is arranged in the first shell, a second cavity is arranged in the second shell, the intermediate shaft is of a hollow tubular structure, a first dust cover is connected between the outer wall of the intermediate shaft and the outer wall of the first shell, a second dust cover is connected between the outer wall of the intermediate shaft and the outer wall of the second shell, and the first cavity and the second cavity are communicated through the intermediate shaft. The utility model provides a wear-resisting compact rear wheel drive shaft assembly of energy-conserving lightweight, its end universal joint inner chamber and stiff end universal joint inner chamber that slides communicate, can follow the stiff end and supply past, reducing wear when the end universal oil that slides reduces.

Description

Energy-saving lightweight wear-resistant compact rear wheel drive shaft assembly

Technical Field

The utility model relates to an automobile parts field, concretely relates to wear-resisting compact rear wheel drive shaft assembly of energy-conserving lightweight.

Background

The rear wheel drive shaft on the market at present comprises fixed type constant velocity universal joint and gliding type constant velocity universal joint and solid semi-axis mostly, because ball cage is nearer with gearbox and exhaust pipe in traditional assembly, the grease in the assembly receives the influence that heat source and inner structure restrict and too early stoving, causes the too early wearing and tearing of inner assembly because of the lubrication.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a wear-resisting compact rear wheel drive shaft assembly of energy-conserving lightweight has mainly solved the premature stoving of grease in the present end universal joint that slides, causes the problem of inside subassembly because of lubricated not enough premature wear.

The utility model discloses a concrete implementation scheme does: the utility model provides an energy-conserving lightweight wear-resisting compact rear wheel drive shaft assembly, is including end universal joint, stiff end universal joint and the jackshaft that slides, the end universal joint that slides includes first casing, the stiff end universal joint includes the second casing, be equipped with first cavity in the first casing, be equipped with the second cavity in the second casing, the jackshaft is hollow tubular structure, the jackshaft outer wall with be connected with first dust cover between the first casing outer wall, the jackshaft outer wall with be connected with the second dust cover between the second casing outer wall, jackshaft intercommunication is passed through to first cavity and second cavity.

The middle shaft is characterized by further comprising a first connecting rod and a second connecting rod, a first star-shaped sleeve is arranged in the first cavity, a second star-shaped sleeve is arranged in the second cavity, the first connecting rod is connected with the first star-shaped sleeve, the second connecting rod is connected with the second star-shaped sleeve, and the first connecting rod and the second connecting rod are partially arranged in the middle shaft.

The first connecting rod and the first planetary sleeve are integrally arranged.

The improved structure is characterized in that a second retainer is arranged in the intermediate shaft, the second retainer is arranged between the second connecting rod and the inner wall of the intermediate shaft, a rolling ball is arranged on the second retainer, the rolling ball is in contact with the outer wall of the second connecting rod, and the rolling ball is in contact with the inner wall of the intermediate shaft.

The first shell is internally provided with a first holding frame, the first holding frame is provided with a steel ball, and the inner wall of the first shell is matched with a channel formed by the steel ball in a rolling manner.

The number of the channels is 9.

Each of the channels is spaced 40 deg. apart.

The utility model has the advantages that: the utility model provides a wear-resisting compact rear wheel drive shaft assembly of energy-conserving lightweight, its end universal joint inner chamber and stiff end universal joint inner chamber that slides communicate, can follow the stiff end and supply past, reducing wear when the end universal oil that slides reduces.

Drawings

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

Fig. 2 is a schematic partial sectional view of an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, wear-resisting compact rear wheel drive shaft assembly of energy-conserving lightweight, including end universal joint 1, stiff end universal joint 2 and intermediate shaft 3 slide, the end universal joint that slides includes first casing 11, the stiff end universal joint includes second casing 21, be equipped with first cavity 111 in the first casing, be equipped with second cavity 211 in the second casing, the intermediate shaft is hollow tubular structure, the intermediate shaft outer wall with be connected with first dust cover 41 between the first casing outer wall, the intermediate shaft outer wall with be connected with second dust cover 42 between the second casing outer wall, first cavity and second cavity pass through the intermediate shaft intercommunication. The utility model provides a wear-resisting compact rear wheel drive shaft assembly of energy-conserving lightweight, its end universal joint inner chamber and stiff end universal joint inner chamber that slides communicate, can follow the stiff end and supply past, reducing wear when the end universal oil that slides reduces. The jackshaft adopts hollow throat steel pipe, and the universal joint at both ends adopts nine channel designs, and the universal joint pole portion of being connected with wheel hub adopts laser welding, and its axial length compares ordinary stiff end universal joint and reduces 10mm at least simultaneously in the exquisite time of outward appearance, and its whole weight has alleviateed 30% after the improvement, realizes the lightweight, promotes the fuel efficiency of car. The first shell can be a closed shell, and can also be connected to other parts in the vehicle to realize closing.

In this embodiment, as shown in the figure, a first connecting rod 31 and a second connecting rod 32 are further included, a first inner race 112 is disposed in the first chamber, a second inner race 212 is disposed in the second chamber, the first connecting rod is connected with the first inner race, the second connecting rod is connected with the second inner race, and the first connecting rod and the second connecting rod are partially disposed in the intermediate shaft.

In this embodiment, as shown, the first connecting rod is integrally disposed with the first planetary sleeve.

In this embodiment, as shown in the figure, a second retainer 5 is arranged in the intermediate shaft, the second retainer is arranged between the second connecting rod and the inner wall of the intermediate shaft, a rolling ball 51 is arranged on the second retainer, the rolling ball is in contact with the outer wall of the second connecting rod, and the rolling ball is in contact with the inner wall of the intermediate shaft. The jackshaft adopts the steel ball to slide, and it is little to compare its sliding resistance of traditional assembly, and centering accuracy is high, and the direction is accurate, easily resets, has the reliability of fine stationarity of sliding and transmission, and the circumference clearance is little, has fine vibration resistance and digestion and absorbs the impact capacity of road surface to the assembly, solves the strong scheduling problem of traditional solid semi-axis vibrations.

In this embodiment, as shown in the figure, a first holder 115 is provided in the first housing, a steel ball 116 is provided on the first holder, and a channel 117 is provided on the inner wall of the first housing, and is in rolling fit with the steel ball.

In this embodiment, there are 9 channels as shown. The diameter of the steel ball is reduced, the diameter of the joint circle of the ball group is increased, the abrasion of the star sleeve is reduced compared with that of a six-ball-track universal joint, and meanwhile, the compressive stress of a window of the retainer is also reduced, so that the bearing capacity and the service life of the constant velocity universal joint can be improved.

In the present embodiment, the channels are spaced 40 apart as shown.

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 an energy-conserving lightweight wear-resisting compact rear wheel drive shaft assembly, includes end universal joint (1), stiff end universal joint (2) and intermediate shaft (3) that slide, its characterized in that: the end universal joint that slides includes first casing (11), the stiff end universal joint includes second casing (21), be equipped with first cavity (111) in the first casing, be equipped with second cavity (211) in the second casing, the jackshaft is hollow tubular structure, the jackshaft outer wall with be connected with first dust cover (41) between the first casing outer wall, the jackshaft outer wall with be connected with second dust cover (42) between the second casing outer wall, first cavity and second cavity pass through the jackshaft intercommunication.

2. The energy-saving light-weight wear-resistant compact rear wheel drive axle assembly of claim 1, wherein: the middle shaft is characterized by further comprising a first connecting rod (31) and a second connecting rod (32), a first star-shaped sleeve (112) is arranged in the first cavity, a second star-shaped sleeve (212) is arranged in the second cavity, the first connecting rod is connected with the first star-shaped sleeve, the second connecting rod is connected with the second star-shaped sleeve, and the first connecting rod and the second connecting rod are partially arranged in the middle shaft.

3. The energy-saving light-weight wear-resistant compact rear wheel drive axle assembly of claim 2, wherein: the first connecting rod and the first planetary sleeve are integrally arranged.

4. The energy-saving light-weight wear-resistant compact rear wheel drive axle assembly of claim 3, wherein: be equipped with second holder (5) in the jackshaft, the second holder is located between second connecting rod and the jackshaft inner wall, be equipped with spin (51) on the second holder, the spin with the contact of second connecting rod outer wall, the spin with the contact of jackshaft inner wall.

5. The energy-saving light-weight wear-resistant compact rear wheel drive axle assembly of claim 4, wherein: a first holding frame (115) is arranged in the first shell, a steel ball (116) is arranged on the first holding frame, and a channel (117) matched with the steel ball in a rolling mode is formed in the inner wall of the first shell.

6. The energy-saving light-weight wear-resistant compact rear wheel drive axle assembly of claim 5, wherein: the number of the channels is 9.

7. The energy-saving light-weight wear-resistant compact rear wheel drive axle assembly of claim 6, wherein: each of the channels is spaced 40 deg. apart.