CN220488240U - Nested high performance drive shaft assembly - Google Patents

Abstract

Nested high performance propeller shaft assembly. The ball cage ball channel inner cavity of the traditional transmission shaft assembly is integrated, the disassembly is inconvenient, and the whole assembly can be replaced once the product fails, so that the problem of high maintenance cost is solved. The method is characterized in that: the first universal joint comprises a first shell (21) and a second shell (22), a channel used for being matched with a rolling ball (211) is arranged in the first shell, a connecting shaft (221) is arranged on the second shell, a sinking groove (213) is formed in the circumferential outer wall of the first shell, and a convex ring (222) matched with the sinking groove in a clamping mode is arranged on the inner wall of the second shell. The nested high-performance transmission shaft assembly is quite convenient to detach and low in maintenance cost, can be detached independently to be replaced conveniently, reduces development cost and prolongs the service life of products.

Description

Nested high performance drive shaft assembly

Technical Field

The utility model relates to the field of automobile parts, in particular to a nested high-performance transmission shaft assembly.

Background

With the popularization of automobiles, people have an increased requirement on life quality, and customers not only require the economy of automobiles, but also require the convenience of maintenance of automobile assemblies.

The ball cage ball way inner cavity of the traditional transmission shaft assembly is integrated, the disassembly is inconvenient, the whole assembly can be replaced once the product fails, the maintenance cost is high, and the assembly is uneconomical.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides the nested high-performance transmission shaft assembly, and mainly solves the problems that the inner cavities of ball tracks of the traditional transmission shaft assembly are integrated, the disassembly is inconvenient, and the whole assembly is replaced once a product fails, so that the maintenance cost is high.

The technical scheme adopted by the utility model is as follows:

the utility model provides a nested high performance transmission shaft assembly, includes the jackshaft, jackshaft one end is equipped with first universal joint, and the other end is equipped with the second universal joint, first universal joint includes first casing and second casing, be equipped with in the first casing be used for with spin complex channel, be equipped with the connecting axle on the second casing, first casing circumference outer wall is equipped with heavy groove, second shells inner wall be equipped with heavy groove joint complex bulge loop.

The first universal joint and the second universal joint are slip universal joints.

A portion of the circumferential outer wall of the first housing is in contact with the circumferential inner wall of the second housing.

And a cavity is formed in the middle shaft.

The first shell is internally provided with 8 rolling balls.

The second universal joint comprises a shell, the shell is of an axial through structure, an end cover is detachably connected to the shell, and the end cover is used for covering an opening on one axial side of the shell.

The shell is provided with a flange cover which is detachably connected, the flange cover comprises a pressing plate, the end cover comprises a flange, and the pressing plate is used for fixing the flange on the end face of the outer side of the shell in the axial direction.

And a sealing ring is further arranged between the flange and the axially outer end face of the shell.

The beneficial effects of the utility model are as follows: the nested high-performance transmission shaft assembly is quite convenient to detach and low in maintenance cost, can be detached independently to be replaced conveniently, reduces development cost and prolongs the service life of products.

Drawings

FIG. 1 is a schematic cross-sectional view of one embodiment of the present utility model.

Fig. 2 is an enlarged schematic view at a in fig. 1.

Fig. 3 is an enlarged schematic view at B in fig. 1.

Detailed Description

The utility model is further described below with reference to the accompanying drawings: as shown in the figure, the nested high-performance transmission shaft assembly comprises a middle shaft 1, wherein one end of the middle shaft is provided with a first universal joint 2, the other end of the middle shaft is provided with a second universal joint 3, the first universal joint comprises a first shell 21 and a second shell 22, a channel used for being matched with a rolling ball 211 is arranged in the first shell, a connecting shaft 221 is arranged on the second shell, a sunk groove 213 is formed in the circumferential outer wall of the first shell, and a convex ring 222 matched with the sunk groove in a clamping manner is arranged on the inner wall of the second shell. The detachable water heater is very convenient to detach, low in maintenance cost, capable of being detached independently to be replaced conveniently, reducing development cost and prolonging service life of products. Specifically, the second housing and the first housing may be mounted together by press-fitting or the like, and the entire outer surface may not have mounting members such as screws.

In this embodiment, as shown in the figure, the first universal joint and the second universal joint are both slip universal joints. The two ends are adopted to slide, the sliding quantity of one end is 40mm, the two ends are 80mm, and the sliding quantity is large.

In this embodiment, as shown in the figure, a part of the circumferential outer wall of the first housing is in contact with the circumferential inner wall of the second housing.

In this embodiment, as shown in the figure, a cavity is provided inside the intermediate shaft. The intermediate shaft is formed by connecting a hollow pipe material and a solid shaft into a whole through friction welding, compared with the whole solid shaft, the hollow shaft has the advantages that the section outer diameter of the hollow shaft is larger than the diameter of the solid shaft, but the volume and the weight of the hollow shaft are half of those of the solid shaft, so that the material is saved, the whole weight is light, the bearing torque is larger, the weight of the whole hollow shaft is reduced by 40%, and the transmission efficiency is improved.

In this embodiment, as shown, 8 balls are provided in the first housing. The total volume of the ball cage type universal joint adopting 8 steel balls is reduced by 12% compared with that of the ball cage type universal joint adopting 6 steel balls, the total mass is reduced by 16%, and the ball cage type universal joint adopting 8 steel balls is smaller in stress and longer in fatigue life compared with that of the ball cage type universal joint adopting 6 steel balls through finite element analysis. Furthermore, the steel ball is in point contact with the ball channel, a gap is formed in the middle of the steel ball, lubricating grease can be stored, the cooling effect is achieved, the friction coefficient is small, the transmission efficiency is improved, and the driving vibration is reduced.

In this embodiment, as shown in the drawing, the second universal joint includes a housing 31, where the housing is of an axial through structure, and an end cover 4 is detachably connected to the housing, and the end cover is used to cover an opening on one axial side of the housing.

In this embodiment, as shown, the housing is provided with a removably attachable flange cover 5, which includes a pressure plate 51, and the end cap includes a flange 41 for securing the flange to an axially outer end face of the housing. The end cover is difficult to drop, can conveniently store lubricating grease more, effectively prevents that the grease from revealing. The flange cover is mounted on the housing by bolts.

In this embodiment, as shown, a seal ring 42 is also provided between the flange and the axially outer end face of the housing.

In the description of the present utility model, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

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

Claims (8)

1. Nested formula high performance transmission shaft assembly, including jackshaft (1), jackshaft one end is equipped with first universal joint (2), and the other end is equipped with second universal joint (3), its characterized in that: the first universal joint comprises a first shell (21) and a second shell (22), a channel used for being matched with a rolling ball (211) is arranged in the first shell, a connecting shaft (221) is arranged on the second shell, a sinking groove (213) is formed in the circumferential outer wall of the first shell, and a convex ring (222) matched with the sinking groove in a clamping mode is arranged on the inner wall of the second shell.

2. The nested high performance propeller shaft assembly of claim 1, wherein: the first universal joint and the second universal joint are slip universal joints.

3. The nested high performance propeller shaft assembly of claim 1 or 2, wherein: a portion of the circumferential outer wall of the first housing is in contact with the circumferential inner wall of the second housing.

4. A nested high performance propeller shaft assembly as set forth in claim 3, wherein: and a cavity is formed in the middle shaft.

5. The nested high performance propeller shaft assembly of claim 4, wherein: the first shell is internally provided with 8 rolling balls.

6. The nested high performance propeller shaft assembly of claim 5, wherein: the second universal joint comprises a shell (31), the shell is of an axial through structure, an end cover (4) is detachably connected to the shell, and the end cover is used for covering an opening on one axial side of the shell.

7. The nested high performance propeller shaft assembly of claim 6, wherein: the shell is provided with a flange cover (5) which is detachably connected, the flange cover comprises a pressing plate (51), the end cover comprises a flange (41), and the pressing plate is used for fixing the flange on the outer end face of the shell in the axial direction.

8. The nested high performance propeller shaft assembly of claim 7, wherein: a sealing ring (42) is also arranged between the flange and the axially outer end face of the shell.