Nine-fairway large-swing-angle half shaft
By designing the nine-straight large swing angle half-axis and using the spherical matching structure of the slide chute and hollow connecting rod, the problems of heavy weight and unstable use of conventional half-axis intermediate shafts are solved, and a lighter and more stable half-axis structure is achieved.
Patent Information
- Application Number
- CN202421685497.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The intermediate shaft of conventional half-axis adopts a solid tube structure, which leads to heavier weight and unstable use.
A nine-six-stay large swing angle half-axle is designed, with the intermediate shaft equipped with a slide groove and a hollow connecting rod. The connecting rod is matched with the shell cage ball through a spherical matching structure to achieve axial slippage and increase the service life through a dustproof sleeve.
By reducing the weight of the intermediate shaft, increasing the amount of axial slippage, and the spherical mating structure always provides support, improving the stability and adaptability of the half shaft.
Smart Images
Figure CN222687147U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile parts, in particular to a nine-way large swing angle half shaft. Background Art
[0002] A half shaft (Driver Shaft), also called a drive shaft (CVJ, CV joint, constant velocity joint), is a shaft that connects the differential to the drive wheel. A half shaft is a shaft that transmits torque between the gearbox reducer and the drive wheel. It has a universal joint (U / JOINT) at its inner and outer ends, which are connected to the reducer gear and the inner ring of the wheel hub bearing through the splines on the universal joint.
[0003] Conventional half-axles generally adopt a solid tube structure, and the intermediate shaft has no guide when the shell swings, making it unstable to use. Utility Model Content
[0004] In order to overcome the shortcomings of the background technology, the utility model provides a nine-lane large swing angle half-axle, which mainly solves the problem that the intermediate shaft of the conventional half-axle assembly adopts a solid tube and is heavy.
[0005] The technical solution of the utility model is:
[0006] The nine-way large swing angle half shaft comprises an intermediate shaft, one end of the intermediate shaft is connected to a first universal joint, and the other end is connected to a second universal joint, wherein the first universal joint comprises a housing, and further comprises
[0007] A retaining frame is arranged in the housing, and a rolling ball is installed on the retaining frame;
[0008] A slide groove, arranged in the axial direction of the intermediate shaft;
[0009] A hollow connecting rod, one end of which extends into the slide groove and is movably matched with the slide groove in the axial direction, and the other end is provided with a connecting seat, the circumferential outer wall of the connecting seat is provided with a groove matched with the rolling ball, and a spherical surface is provided in the axial direction;
[0010] The ball seat is arranged in the shell, and the outer surface of the ball seat is a second spherical surface in contact with the spherical surface.
[0011] The connecting rod is a hollow tubular structure.
[0012] The inner wall of the shell is provided with a ball track matched with the rolling ball, and nine ball tracks are provided.
[0013] The ball seat is a hollow structure.
[0014] A second retaining frame is arranged on the outer side of the connecting rod extending into the sliding groove, and a second rolling ball matched with the inner wall of the sliding groove is arranged on the second retaining frame.
[0015] It also includes a dust cover, one end of which is connected to the circumferential outer wall of the shell, and the other end of which is connected to the circumferential outer wall of the intermediate shaft.
[0016] The rolling ball is a steel ball.
[0017] The beneficial effects of the utility model are as follows: the utility model provides a nine-lane large swing angle half shaft, the intermediate shaft is provided with a slide groove, which cooperates with the sliding of the connecting rod and also reduces the weight, the connecting rod increases the axial slippage, and the connecting rod is always supported by the spherical matching structure, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model.
[0019] Figure 2 for Figure 1 A magnified schematic diagram of center A. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings: as shown in the figure, 1. The nine-way large swing angle half shaft includes an intermediate shaft 1, one end of the intermediate shaft is connected to a first universal joint 2, and the other end is connected to a second universal joint 3, the first universal joint includes a shell 21, and also includes a retaining frame 211, which is arranged in the shell, and a ball 212 is installed on the retaining frame; a slide groove 11 is arranged in the axial direction of the intermediate shaft; a hollow connecting rod 12, one end of which extends into the slide groove and is movably matched with the slide groove along the axial direction, and the other end is provided with a connecting seat 121, the circumferential outer wall of the connecting seat is provided with a groove matched with the ball, and a spherical surface 122 is provided in the axial direction; a ball seat 22 is arranged in the shell, and its outer surface is a second spherical surface in contact with the spherical surface. The shaft sliding structure is adopted, which has a larger sliding amount. The outer wall of the end of the connecting rod extending into the universal joint is provided with a groove, which acts as a retainer. In addition, the ball seat is in contact with the spherical surface, and the second spherical surface of the ball seat is consistent with the spherical surface, so that the support is always maintained during swinging, and it is more stable when the swing angle is large.
[0021] In this embodiment, as shown in the figure, the connecting rod is a hollow tubular structure. The hollow tube structure reduces the total mass by 20% while ensuring the strength.
[0022] In this embodiment, as shown in the figure, the inner wall of the housing is provided with a ball track that matches the rolling ball, and the ball tracks are provided with nine. The swing angle of the 9-ball cage universal joint can reach 27°, which has a larger swing angle than the traditional inclined roller sliding end universal joint and can cope with more complex road conditions.
[0023] In this embodiment, as shown in the figure, the ball seat is a hollow structure to further reduce the weight.
[0024] In this embodiment, as shown in the figure, a second retainer 123 is provided on the outer side of the connecting rod extending into the slide groove, and a second rolling ball 124 is provided on the second retainer to match the inner wall of the slide groove, so as to facilitate axial sliding.
[0025] In this embodiment, as shown in the figure, a dust cover 4 is also included, one end of which is connected to the circumferential outer wall of the housing, and the other end of which is connected to the circumferential outer wall of the intermediate shaft, so as to prevent dust and debris from entering and increase the service life.
[0026] In this embodiment, as shown in the figure, the rolling ball is a steel ball.
[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.
Claims
1. A nine-way large swing angle half shaft, comprising an intermediate shaft (1), one end of the intermediate shaft being connected to a first universal joint (2), and the other end being connected to a second universal joint (3), the first universal joint comprising a housing (21), characterized in that: Also includes A retaining frame (211) is disposed in the housing, and a rolling ball (212) is mounted on the retaining frame; A slide groove (11) is arranged in the axial direction of the intermediate shaft; A hollow connecting rod (12), one end of which extends into the slide groove and is movably matched with the slide groove in the axial direction, and the other end of which is provided with a connecting seat (121), the circumferential outer wall of the connecting seat being provided with a groove matched with the rolling ball, and a spherical surface (122) being provided in the axial direction; A ball seat (22) is arranged in the housing, and its outer surface is a second spherical surface in contact with the spherical surface.
2. The nine-lane large swing angle semi-axle according to claim 1, characterized in that: The connecting rod is a hollow tubular structure.
3. The nine-lane large swing angle semi-axle according to claim 2, characterized in that: The inner wall of the shell is provided with a ball track matched with the rolling ball, and nine ball tracks are provided.
4. The nine-lane large swing angle semi-axle according to claim 3, characterized in that: The ball seat is a hollow structure.
5. The nine-lane large swing angle semi-axle according to claim 4, characterized in that: A second retaining frame (123) is provided on the outer side of the connecting rod extending into the sliding groove, and a second rolling ball (124) matching the inner wall of the sliding groove is provided on the second retaining frame.
6. The nine-lane large swing angle semi-axle according to claim 5, characterized in that: It also includes a dust cover (4), one end of which is connected to the circumferential outer wall of the shell, and the other end of which is connected to the circumferential outer wall of the intermediate shaft.
7. The nine-lane large swing angle semi-axle according to claim 6, characterized in that: The rolling ball is a steel ball.