CN218228523U

CN218228523U - Large-swing-angle high-torque half shaft

Info

Publication number: CN218228523U
Application number: CN202122422816.1U
Authority: CN
Inventors: 吴迪; 胡家锋; 徐江平
Original assignee: Zhejiang Jiasheng Auto Parts Manufacturing Co ltd
Current assignee: Zhejiang Jiasheng Auto Parts Manufacturing Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2023-01-06
Anticipated expiration: 2031-10-09

Abstract

The semi-axis of high moment of torsion of big pivot angle. The movable contact piece and the contact piece of the temperature control switch are mainly used for solving the problem of high cost caused by the fact that the movable contact piece and the contact piece of the existing temperature control switch are mostly connected together through rivets and the like. The method is characterized in that: the stiff end universal joint includes first casing (21), jackshaft one end stretches into the first casing endotheca is equipped with star cover (11), be equipped with flange (12) on the jackshaft, the cover is equipped with elastic sleeve (13) and dish spring (14) on the jackshaft, the elastic sleeve front end with the star cover contact, the back with the dish spring contact, dish spring back with the flange contact. The utility model provides a high moment of torsion semi-axis of big pivot angle, the connection piece part on its movable contact spring stretches out the casing and is connected with the contact piece outward, and the cost is lower.

Description

Large-swing-angle high-torque half shaft

Technical Field

The utility model relates to a switch field, concretely relates to high moment of torsion semi-axis of big pivot angle.

Background

Along with the popularization of automobiles, the requirements of people on the quality of life are improved, and the energy conservation, the environmental protection and the NVH performance of products are more and more concerned by people. In order to improve the economy and the comfort of the whole vehicle energy source, the weight of automobile parts is reduced as much as possible on the premise of ensuring safety and reliability and not influencing the performance.

The traditional positioning mode of the half shaft and the star-shaped sleeve is the clamp spring, so that abnormal sound is generated due to axial clearance in the operation process.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a high moment of torsion semi-axis of big pivot angle mainly solves present semi-axis and star cover locate mode and is exactly the jump ring, at the in-process of operation like this, because of the reason of axial gap, has the problem of abnormal sound.

The utility model adopts the technical proposal that:

big high moment of torsion semi-axis of pivot angle, including the jackshaft, jackshaft one end is equipped with the stiff end universal joint, and the other end is equipped with the end universal joint that slides, the stiff end universal joint includes first casing, jackshaft one end stretches into the first casing endotheca is equipped with the star cover, be equipped with the flange on the jackshaft, the cover is equipped with elastic sleeve and dish spring on the jackshaft, the elastic sleeve front end with the star cover contact, the back with dish spring contact, dish spring back with the flange contact.

The elastic sleeve is made of nylon.

A hollow cavity is arranged in the intermediate shaft.

The front end face of the elastic sleeve is an inclined plane which is attached to the star-shaped sleeve, and the back of the elastic sleeve is a vertical plane.

The rolling ball type power transmission device is characterized in that a rolling way is arranged on the inner wall of the first shell, a retainer is arranged in the first shell, a rolling ball is arranged on the retainer, and the rolling ball is in rolling fit with the rolling way.

The number of the roller paths is 8.

And a transmission key is arranged on the axial end face of the first shell.

The inner walls of the two sides of the roller path are tangent to the outer wall of the rolling ball.

The beneficial effects of the utility model are that: the utility model provides a high moment of torsion semi-axis of big pivot angle, its intermediate shaft and star cover are linked the location by jump ring and nylon spacer, butterfly spring, and because of the nylon spacer is rubber materials, the butterfly spring has elasticity, can offset this kind of axial clearance, make the reliability reinforcing of product, improve the NVH performance.

Drawings

Fig. 1 is a schematic cross-sectional view of a first embodiment of the present invention.

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

Fig. 3 is a schematic partial sectional view of a first embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, high moment of torsion semi-axis of big pivot angle, including jackshaft 1, jackshaft one end is equipped with stiff end universal joint 2, and the other end is equipped with the end universal joint 3 that slides, the stiff end universal joint includes first casing 21, jackshaft one end stretches into first casing endotheca is equipped with star cover 11, be equipped with flange 12 on the jackshaft, the cover is equipped with elastic sleeve 13 and dish spring 14 on the jackshaft, the elastic sleeve front end with the star cover contact, the back with dish spring contact, dish spring back with the flange contact. The utility model provides a high moment of torsion semi-axis of big pivot angle, its intermediate shaft and star cover are linked the location by jump ring and nylon spacer, butterfly spring, and because of the nylon spacer is rubber materials, the butterfly spring has elasticity, can offset this kind of axial clearance, make the reliability reinforcing of product, improve the NVH performance.

In the present invention, as shown in the figure, the elastic sleeve is made of nylon.

In the utility model, as shown in the figure, a hollow cavity 15 is arranged in the intermediate shaft. Compared with the whole solid shaft, the hollow shaft has a larger diameter than the solid shaft in the section, 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, and the bearing torque is larger.

The utility model discloses in, as shown in the figure, the terminal surface be before the elastic sleeve with the inclined plane that the star cover was laminated mutually, the elastic sleeve back is the perpendicular.

The utility model discloses in, as shown in the figure, the first shells inner wall of institute is equipped with raceway 16, be equipped with holder 17 in the first casing, be equipped with spin 18 on the holder, the spin with raceway roll cooperation.

In the present invention, as shown in the figure, the rolling paths are 8. Through finite element analysis, the ball cage universal joint of 8 steel balls bears smaller stress and longer fatigue life than the ball cage universal joint of 6 steel balls

The utility model discloses in, as shown in the figure, first casing axial terminal surface is equipped with the drive key. The end face spline and the hub bearing are automatically centered, and in operation, the spline connection part almost has no gap, so that the connection is tighter. Experiments show that compared with the traditional spline, the end face spline has large diameter, so that the transmission torque is large, the driving torque of the automobile can be improved by 50%, the reliability of the product is enhanced, and the dynamic control performance of the automobile is improved.

In the utility model discloses in, as shown in the figure, raceway both sides inner wall with spin outer wall is tangent. The stress condition of the universal joint can be improved by the aid of the point contact channel section form, and accordingly bearing capacity of the universal joint is improved.

In the description of the present invention, it is to 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 orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the figures are exemplary intended for the purpose of illustrating the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. Big high moment of torsion semi-axis of pivot angle, including jackshaft (1), jackshaft one end is equipped with stiff end universal joint (2), and the other end is equipped with end universal joint (3), its characterized in that slides: the stiff end universal joint includes first casing (21), jackshaft one end stretches into first casing endotheca is equipped with star cover (11), be equipped with flange (12) on the jackshaft, the cover is equipped with elastic sleeve (13) and dish spring (14) on the jackshaft, the elastic sleeve front end with the star cover contact, the back with dish spring contact, dish spring back with the flange contact.

2. The large-swing-angle high-torque half shaft as claimed in claim 1, wherein: the elastic sleeve is made of nylon.

3. The high-swing-angle high-torque half-shaft according to claim 2, wherein: a hollow cavity (15) is arranged in the intermediate shaft.

4. The high-swing-angle high-torque half-shaft according to claim 3, wherein: the front end face of the elastic sleeve is an inclined plane which is attached to the star-shaped sleeve, and the back of the elastic sleeve is a vertical plane.

5. The high-swing-angle high-torque half shaft as claimed in claim 4, wherein: a roller path (16) is arranged on the inner wall of the first shell, a retainer (17) is arranged in the first shell, a rolling ball (18) is arranged on the retainer, and the rolling ball is in rolling fit with the roller path.

6. The large-swing-angle high-torque half shaft as claimed in claim 5, wherein: the number of the roller paths is 8.

7. The high-swing-angle high-torque half-shaft as claimed in claim 6, wherein: and a transmission key is arranged on the axial end face of the first shell.

8. The high-swing-angle high-torque half-shaft as claimed in claim 7, wherein: the inner walls of the two sides of the roller path are tangent to the outer wall of the rolling ball.