CN219062259U

CN219062259U - Detachable transmission shaft assembly

Info

Publication number: CN219062259U
Application number: CN202223198188.4U
Authority: CN
Inventors: 杜诗洁; 金孝伟; 赵裕佳
Original assignee: Zhejiang Jiasheng Auto Parts Manufacturing Co ltd
Current assignee: Zhejiang Jiasheng Auto Parts Manufacturing Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-23
Anticipated expiration: 2032-12-01

Abstract

And the detachable transmission shaft assembly. The problem that the spline shaft dismounting structure of the existing universal joint is not very convenient is mainly solved. The method is characterized in that: the first universal joint comprises a shell (4), the shell comprises a first shell (41) and a second shell (42), the first shell and the second shell are detachably connected together in the axial direction, and a spline shaft (411) is integrally arranged on the first shell. The utility model provides a detachable transmission shaft assembly which can replace a spline shaft, is convenient to disassemble and assemble and has a simple structure.

Description

Detachable transmission shaft assembly

Technical Field

The utility model relates to the field of automobile parts, in particular to a detachable transmission shaft assembly.

Background

In consideration of the strong market competition, customers not only require the economy of the automobile, but also require the convenient maintenance of the automobile assembly, and according to market research, the customers feed back that multiple products can cause the replacement of the whole assembly once failure, so that the maintenance cost is high.

For this reason, chinese patent publication No. CN207364122U discloses a universal joint with a replaceable spline shaft, but the structure is troublesome to disassemble the inner race of the universal joint together when the universal joint is disassembled;

or the Chinese patent with the publication number of CN210397481U is troublesome to process, and the screw is installed on the spline shaft, so that leakage points are increased, a leakage-proof cover is required to be installed, the actual use effect is poor, and a key transmission structure is required to be processed between the spline shaft and the shell.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides a detachable transmission shaft assembly, which mainly solves the problem that the spline shaft dismounting structure of the conventional universal joint is not very convenient.

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

the utility model provides a detachable 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 the casing, the casing includes first casing and second casing, first casing and second casing are in the same place at axial direction detachable connection, an organic whole is provided with the integral key shaft on the first casing.

The first shell is connected with a fastening bolt on the axial outer end face, and the fastening bolt part penetrates through the first shell to be in threaded connection with the second shell.

And a sealing ring is arranged between the opposite surfaces of the first shell and the second shell.

The novel ball rolling machine is characterized in that a retainer is arranged in the shell, a rolling ball is arranged on the retainer, a channel matched with the rolling ball is arranged on the inner wall of the shell, and the channel comprises a first arc-shaped surface and a second arc-shaped surface which are tangent to the rolling ball.

The intermediate shaft is provided with an inner sleeve, and the inner sleeve is provided with a third arc-shaped surface and a fourth arc-shaped surface which are tangential with the rolling ball.

The number of the rolling balls is 6.

The shell is provided with a necking sleeve and further comprises a dust cover, one end of the dust cover is connected with the intermediate shaft, and the other end of the dust cover is connected with the necking sleeve.

The necking sleeve is provided with a clamping groove, and one end of the dust cover is matched with the clamping groove in a clamping way.

The beneficial effects of the utility model are as follows: the utility model provides a detachable transmission shaft assembly which can replace a spline shaft, is convenient to disassemble and assemble and has a simple structure.

Drawings

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

Detailed Description

The utility model is further described below with reference to the accompanying drawings: as shown in the figure, the detachable 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 shell 4, the shell comprises a first shell 41 and a second shell 42, the first shell and the second shell are detachably connected together in the axial direction, and a spline shaft 411 is integrally arranged on the first shell. The assembly or the ball cage can be enhanced in universality, the flange joint connected with the ball cage can be replaced according to the position of the automobile layout once the product fails, the maintenance cost is reduced, and the service life of the product is prolonged.

In this embodiment, as shown in the drawing, a fastening bolt 5 is connected to the axially outer end surface of the first housing, and the fastening bolt portion is threaded through the first housing and the second housing.

In this embodiment, as shown in the drawing, a sealing ring 51 is disposed between the opposite surfaces of the first housing and the second housing.

In this embodiment, as shown in the figure, the housing is provided with a cage 6, a ball 61 is provided on the cage, the inner wall of the housing is provided with a channel 43 matched with the ball, and the channel comprises a first arc-shaped surface 431 and a second arc-shaped surface 432 tangential to the ball.

In this embodiment, as shown, the intermediate shaft is provided with an inner sleeve 7 provided with a third arcuate surface 433 and a fourth arcuate surface 434 tangential to the ball. The steel ball is in point contact with the ball channel 4, the traditional way is 2 points contact, the stress condition of the universal joint can be improved by the four-point contact channel section mode, the bearing capacity of the universal joint is further improved, a gap is formed in the middle of the universal joint, lubricating grease can be stored, the cooling effect is achieved, the friction coefficient is far smaller than that of a ball ring adopted by a common three-ball-pin universal joint, the direct contact is achieved, the transmission efficiency is improved, and the driving vibration is reduced.

In this embodiment, as shown, the balls are provided in 6.

In this embodiment, as shown in the figure, the casing is provided with a necking sleeve 8, and further includes a dust cover 81, one end of the dust cover is connected with the intermediate shaft, and the other end of the dust cover is connected with the necking sleeve.

In this embodiment, as shown in the drawing, a clamping groove 801 is formed on the necking sleeve, and one end of the dust cover is in clamping fit with the clamping groove.

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

1. Detachable 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 shell (4), the shell comprises a first shell (41) and a second shell (42), the first shell and the second shell are detachably connected together in the axial direction, and a spline shaft (411) is integrally arranged on the first shell.

2. The removable drive shaft assembly of claim 1, wherein: the first shell is connected with a fastening bolt (5) on the axial outer end face, and the fastening bolt part penetrates through the first shell to be in threaded connection with the second shell.

3. The removable drive shaft assembly of claim 2, wherein: a sealing ring (51) is arranged between the opposite surfaces of the first shell and the second shell.

4. A removable drive shaft assembly as defined in claim 3, wherein: the novel ball rolling machine is characterized in that a retainer (6) is arranged in the shell, a rolling ball (61) is arranged on the retainer, a channel (43) matched with the rolling ball is arranged on the inner wall of the shell, and the channel comprises a first arc-shaped surface (431) and a second arc-shaped surface (432) tangential to the rolling ball.

5. The removable drive shaft assembly of claim 4, wherein: the intermediate shaft is provided with an inner sleeve (7) provided with a third arc-shaped surface (433) and a fourth arc-shaped surface (434) tangential to the ball.

6. The removable drive shaft assembly of claim 5, wherein: the number of the rolling balls is 6.

7. The removable drive shaft assembly of claim 6, wherein: the shell is provided with a necking sleeve (8) and further comprises a dust cover (81), one end of the dust cover is connected with the intermediate shaft, and the other end of the dust cover is connected with the necking sleeve.

8. The removable drive shaft assembly of claim 7, wherein: the necking sleeve is provided with a clamping groove (801), and one end of the dust cover is matched with the clamping groove in a clamping way.