Threaded joint assembly

Abstract

A threaded universal joint assembly is disclosed. This invention primarily addresses the stringent assembly requirements of current drive shafts connected via splines. Its features include: a retainer (4) housed within the housing, with several rolling elements (41) on the retainer; a star-shaped sleeve (5) housed within the housing and threadedly connected to an intermediate shaft extending into the housing, the rolling elements engaging with the star-shaped sleeve; and a convex ring (11) located on the circumferential outer wall of the intermediate shaft extending into the housing, the convex ring being detachably connected to the side wall of the star-shaped sleeve via fasteners (12). This invention provides a threaded universal joint assembly where the threaded connection can be disassembled at any time, facilitating maintenance and replacement of necessary components. The threaded connection can withstand high strength and pressure, ensuring a tight connection and guaranteeing safety to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, specifically to a threaded universal joint assembly. Background Technology

[0002] While the combination of splined connections and solid shafts is widely used in traditional drive shaft assemblies, its limitations are becoming increasingly apparent due to the urgent demands of modern mechanical design for lightweight and high efficiency. Splined connections require high-precision machining and stringent assembly requirements, and are prone to wear and tear from long-term vibration loads, as well as widening of the snap ring assembly clearance, affecting transmission stability. Furthermore, while solid shafts have strong load-bearing capacity, their large weight and high inertial resistance are detrimental to energy efficiency optimization and dynamic response improvement. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a threaded universal joint assembly, which mainly solves the problem of the current stringent assembly requirements of the drive shaft through spline connection.

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

[0005] A threaded universal joint assembly includes an intermediate shaft, one end of which is connected to a first universal joint, and the other end of which is connected to a second universal joint. The first universal joint includes a housing and further includes...

[0006] A retainer is disposed within the housing, and the retainer is provided with a plurality of rolling elements;

[0007] A star-shaped sleeve is disposed inside the housing and is threadedly connected to an intermediate shaft extending into the housing; the rolling element cooperates with the star-shaped sleeve.

[0008] A convex ring is provided on the circumferential outer wall of the intermediate shaft that extends into the housing. The convex ring is detachably connected to the side wall of the star-shaped sleeve by fasteners.

[0009] The rolling element is a steel ball.

[0010] The fastener is a screw.

[0011] The convex rings are located on both axial sides of the star-shaped sleeve.

[0012] The intermediate shaft is a hollow tube.

[0013] A damping block is mounted on the intermediate shaft located outside the housing.

[0014] The housing includes a first housing and a second housing that are detachably connected, and the second housing has a groove that mates with the rolling element.

[0015] A plug is installed on the intermediate shaft to cover the inner cavity of the intermediate shaft.

[0016] The beneficial effects of this utility model are: This utility model provides a threaded universal joint assembly. The threaded connection can be disassembled at any time, which is convenient for maintenance and replacement of parts that need to be changed. The threaded connection can withstand great strength and pressure, ensuring a tight connection and guaranteeing safety to a certain extent. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0018] Figure 2 for Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. A threaded universal joint assembly includes an intermediate shaft 1, one end of which is connected to a first universal joint 2, and the other end of which is connected to a second universal joint 3. The first universal joint includes a housing and a retainer 4 disposed within the housing, the retainer having a plurality of rolling elements 41; a star-shaped sleeve 5 disposed within the housing and threadedly connected to the intermediate shaft extending into the housing, the rolling elements cooperating with the star-shaped sleeve; and a convex ring 11 disposed on the circumferential outer wall of the intermediate shaft extending into the housing, the convex ring being detachably connected to the side wall of the star-shaped sleeve by fasteners 12. The threaded connection can be disassembled at any time, facilitating maintenance and replacement of parts requiring modification. The threaded connection can withstand high strength and pressure, ensuring a tight connection and guaranteeing safety to a certain extent. Threaded connections typically have high strength and are suitable for applications requiring heavy loads. A two-way threaded connection is used: first, the axial threaded hole 50 of the star-shaped sleeve engages with the threaded connection on the outer wall of the intermediate shaft; second, a convex ring is installed on the convex ring of the intermediate shaft. This convex ring engages with the star-shaped sleeve via fasteners, eliminating the axial clearance generated by traditional spline connections in assemblies, resulting in smoother vehicle operation and better handling.

[0020] In this embodiment, as shown in the figure, the rolling element is a steel ball.

[0021] In this embodiment, as shown in the figure, the fastener is a screw.

[0022] In this embodiment, as shown in the figure, the convex rings are disposed on both axial sides of the star-shaped sleeve.

[0023] In this embodiment, as shown in the figure, the intermediate shaft is a hollow tube. The hollow structure significantly reduces the weight of the shaft, reduces inertial losses, and improves transmission efficiency and system response speed.

[0024] In this embodiment, as shown in the figure, a damping block 13 is installed on the intermediate shaft located outside the housing. This effectively reduces assembly vibration caused by vehicle vibration, reduces noise, and increases driving comfort.

[0025] In this embodiment, as shown in the figure, the housing includes a first housing 211 and a second housing 212 that are detachably connected. The second housing has a groove that mates with the rolling element. It can be disassembled at any time, facilitating maintenance and replacement of components that need modification.

[0026] In this embodiment, as shown in the figure, a plug 14 is installed on the intermediate shaft, and the plug is used to cover the inner cavity of the intermediate shaft.

[0027] 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.

[0028] 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.

[0029] 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 threaded universal joint assembly, comprising an intermediate shaft (1), one end of which is connected to a first universal joint (2), and the other end of which is connected to a second universal joint (3), wherein the first universal joint includes a housing, characterized in that: Also includes A retainer (4) is disposed inside the housing, and a plurality of rolling elements (41) are provided on the retainer. A star-shaped sleeve (5) is disposed inside the housing and threadedly connected to an intermediate shaft extending into the housing; the rolling element cooperates with the star-shaped sleeve. A convex ring (11) is provided on the circumferential outer wall of the intermediate shaft extending into the housing. The convex ring is detachably connected to the side wall of the star-shaped sleeve by a fastener (12).

2. A threaded connection type universal joint assembly as set forth in claim 1, characterized in that: The rolling element is a steel ball.

3. A threaded connection universal joint assembly as defined in claim 1, wherein: The fastener is a screw.

4. A threaded connection universal joint assembly as defined in claim 1, wherein: The convex rings are located on both axial sides of the star-shaped sleeve.

5. A threaded connection type universal joint assembly according to any one of claims 1-4, characterized in that: The intermediate shaft is a hollow tube.

6. A threaded connection type universal joint assembly according to any one of claims 1-4, characterized in that: A damping block (13) is installed on the intermediate shaft located outside the housing.

7. A threaded connection type universal joint assembly according to any one of claims 1-4, characterized in that: The housing includes a first housing (211) and a second housing (212) that are detachably connected, and the second housing has a groove that mates with the rolling element.

8. A threaded connection universal joint assembly as defined in claim 5, wherein: A plug (14) is installed on the intermediate shaft, the plug being used to cover the inner cavity of the intermediate shaft.

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