A drive shaft assembly adapted for different wheel base

Abstract

The utility model provides a transmission shaft assembly of adapting different wheel base, mainly solves the problem that the current transmission shaft assembly is poor in commonality, its characterized in be further including the chute, be located in first axle shaft, the inner wall of chute is equipped with the channel that extends along the axial direction, first retainer, install on the second axle shaft that extends into the chute, first retainer is equipped with the first rolling part that cooperates with channel, locating block, be located in the inner wall of chute, have the locating surface of inclined arrangement, sliding tube, install in second axle shaft outside, its outer wall installs second retainer, second retainer is equipped with the second rolling part that cooperates with locating surface, and its one end extends out the locking piece that installs in the chute, elastic part, install in the chute, for pushing sliding tube makes second rolling part with locating surface contact, the utility model provides a transmission shaft assembly of adapting different wheel base, can adjust length, adapts the use demand of different wheel base.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, specifically to a drive shaft assembly adapted to different wheelbases. Background Technology

[0002] In the automotive manufacturing industry, the same model often has different wheelbase designs due to factors such as market positioning and usage requirements. However, the rear axle driveshaft assemblies currently on the market generally lack compatibility with these models, resulting in high production and subsequent maintenance costs. To meet the market's demand for efficient and low-cost production, we urgently need to develop a driveshaft assembly that is compatible with different wheelbases of the same model. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a drive shaft assembly that is adaptable to different shaft spacings, which mainly solves the problem of poor versatility of current drive shaft assemblies.

[0004] The technical solution of this utility model is as follows:

[0005] A drive shaft assembly adaptable to different wheelbases includes an intermediate shaft, the intermediate shaft comprising a first half-shaft and a second half-shaft, one end of the first half-shaft being connected to a first universal joint, and one end of the second half-shaft being connected to a second universal joint, and further comprising...

[0006] A sliding groove is provided inside the first half-shaft, and the inner wall of the sliding groove is provided with a channel extending in the axial direction.

[0007] A first retainer is mounted on a second half-shaft that extends into the groove. The first retainer is provided with a first rolling element that mates with the groove.

[0008] A positioning block, disposed on the inner wall of the slide groove, has an inclined positioning surface.

[0009] A sliding tube is installed outside the second half-shaft, and a second retainer is installed on its outer wall. The second retainer is provided with a second rolling element that mates with the positioning surface, and a locking element is installed at one end of the second rolling element that extends out of the sliding groove.

[0010] An elastic element, installed in the groove, is used to push the sliding tube to make the second rolling element contact the positioning surface.

[0011] The elastic element is a spring.

[0012] The first rolling element is a steel ball.

[0013] The second rolling element is a steel ball.

[0014] The second half-shaft extending into the groove is provided with several parallel annular channels.

[0015] The sliding tube includes a first tube and a second tube. The first tube is located inside the second tube, and the second retainer is mounted on the second tube. The second tube is provided with a through groove for the passage of the second rolling element.

[0016] The first tube is provided with a flange, and one end of the elastic element abuts against the side wall of the flange, while the other end abuts against the inner wall of the first half-shaft.

[0017] The locking component is a nut.

[0018] The first tube extending out of the groove is provided with threads for engaging with the locking element.

[0019] The first half-shaft includes a detachably connected shaft and a tube, and the tube is provided with the groove.

[0020] The beneficial effects of this utility model are: This utility model provides a transmission shaft assembly that can be adapted to different shaft lengths, and the length can be adjusted to meet the usage requirements of different shaft lengths. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0022] Figure 2 for Figure 1 Enlarged diagram of point C in the middle.

[0023] Figure 3 for Figure 1 Enlarged diagram of point D in the middle.

[0024] Figure 4 for Figure 1 Enlarged diagram of point A in the middle.

[0025] Figure 5 for Figure 1 Enlarged diagram of point B in the middle. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings. A transmission shaft assembly adaptable to different shaft spacings includes an intermediate shaft 1, which includes a first half-shaft 2 and a second half-shaft 3. One end of the first half-shaft is connected to a first universal joint 4, and one end of the second half-shaft is connected to a second universal joint 5. The assembly also includes a slide groove 21 disposed within the first half-shaft, the inner wall of which has a channel extending axially. A first retainer 31 is mounted on the second half-shaft extending into the slide groove, and the first retainer has a first rolling element 311 that cooperates with the channel. A positioning block 22 is disposed on the inner wall of the slide groove and has an inclined positioning surface 221. A sliding tube 32 is mounted outside the second half-shaft, and a second retainer is mounted on its outer wall. The second retainer has a second rolling element 321 that cooperates with the positioning surface, and one end of the second rolling tube extends out of the slide groove and is fitted with a locking element 322. An elastic element 33 is mounted within the slide groove and is used to push the sliding tube to make the second rolling element contact the positioning surface. When adjustment is needed, release the locking key and then pull the second half-shaft to adjust the size. At this time, the second cage moves under the action of the elastic element, and the second rolling element cooperates with the positioning surface to achieve fixation. After fixing, install the nut. The first cage and the first rolling element are for the purpose of torque transmission.

[0027] In this embodiment, as shown in the figure, the elastic element is a spring. This makes assembly easier; it simply needs to be fitted onto the outside of the second half-shaft.

[0028] In this embodiment, as shown in the figure, the first rolling element is a steel ball. It has low cost and good performance.

[0029] In this embodiment, as shown in the figure, the second rolling element is a steel ball. It has low cost and good performance.

[0030] In this embodiment, as shown in the figure, the second half-shaft extending into the groove is provided with several parallel annular channels 34. These channels allow for the positioning of the adjusted ball bearings, resulting in more stable operation.

[0031] In this embodiment, as shown in the figure, the sliding tube includes a first tube 323 and a second tube 324. The first tube is located inside the second tube, and the second retainer is mounted on the second tube. The second tube has a through groove 325 for the passage of the second rolling element. The second retainer is mounted on the outer wall of the second tube and can be made to move synchronously back and forth by means of snap-fit ​​or other methods. The first tube and the second tube can be integrally manufactured.

[0032] In this embodiment, as shown in the figure, the first tube is provided with a flange 326. One end of the elastic element abuts against the side wall of the flange, and the other end abuts against the inner wall of the first half-shaft. The portion of the first tube located in the groove is provided with a flange for cooperating with the spring, and also for limiting the spring.

[0033] In this embodiment, as shown in the figure, the locking element is a nut. A washer is provided at the open end of the slide groove to engage with the nut, and a small hole is made on the washer for the movement of the second half-shaft.

[0034] In this embodiment, as shown in the figure, the first tube extending out of the groove is provided with threads for engaging with the locking member.

[0035] In this embodiment, as shown in the figure, the first half-shaft includes a detachably connected shaft body 301 and a tube body 302, and the tube body is provided with the sliding groove. Assembly can be achieved by means of screws or the like.

[0036] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A drive shaft assembly adaptable to different wheelbases, comprising an intermediate shaft (1), the intermediate shaft comprising a first half-shaft (2) and a second half-shaft (3), one end of the first half-shaft being connected to a first universal joint (4), and one end of the second half-shaft being connected to a second universal joint (5), characterized in that: Also includes A sliding groove (21) is provided inside the first half-shaft, and the inner wall of the sliding groove is provided with a channel extending in the axial direction. A first retainer (31) is mounted on a second half-shaft that extends into the groove. The first retainer is provided with a first rolling element (311) that cooperates with the groove. The positioning block (22) is located on the inner wall of the slide groove and has an inclined positioning surface (221). A sliding tube (32) is installed outside the second half shaft. A second retainer is installed on its outer wall. The second retainer is provided with a second rolling element (321) that cooperates with the positioning surface. One end of the rolling element (322) extends out of the sliding groove. An elastic element (33) is installed in the groove and is used to push the sliding tube to make the second rolling element contact the positioning surface.

2. The drive shaft assembly adaptable to different shaft spacings according to claim 1, characterized in that: The elastic element is a spring.

3. The drive shaft assembly adaptable to different wheelbases according to claim 1, characterized in that: The first rolling element is a steel ball.

4. A drive shaft assembly adaptable to different shaft spacings according to claim 1, characterized in that: The second rolling element is a steel ball.

5. A drive shaft assembly adaptable to different wheelbases according to any one of claims 1-4, characterized in that: The second half-shaft extending into the groove is provided with several parallel annular channels (34).

6. A drive shaft assembly adaptable to different wheelbases according to claim 5, characterized in that: The sliding tube includes a first tube (323) and a second tube (324). The first tube is located inside the second tube, the second retainer is mounted on the second tube, and the second tube is provided with a through groove (325) for the passage of the second rolling element.

7. A drive shaft assembly adaptable to different wheelbases according to claim 6, characterized in that: The first tube is provided with a flange (326), one end of the elastic element abuts against the side wall of the flange, and the other end abuts against the inner wall of the first half shaft.

8. A drive shaft assembly adaptable to different shaft spacings according to claim 1, characterized in that: The locking component is a nut.

9. A drive shaft assembly adaptable to different wheelbases according to claim 6, characterized in that: The first tube extending out of the groove is provided with threads for engaging with the locking element.

10. A drive shaft assembly adaptable to different shaft spacings according to claim 1, characterized in that: The first half-shaft includes a detachably connected shaft (301) and a tube (302), and the tube is provided with the groove.

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