A conical limiting structure steel sleeve

Abstract

This utility model belongs to the field of automotive design technology, specifically relating to a conical limiting structure steel sleeve. The upper part of the outer side of the steel sleeve body has a conical limiting surface, and the lower part has an interference fit surface. The inner side of the steel sleeve body has a ball pin contact surface. The top of the steel sleeve body has a press-in contact surface, and the bottom has a press-out contact surface. This utility model uses a conical limiting surface for limiting the steel sleeve during press-fitting. The lower half of the interference fit surface is used for the steel sleeve to interfere with the steering knuckle, ensuring that the steel sleeve does not fall off. The upper press-in contact surface is for the press head of the press-fitting machine to contact during the press-fitting process. The lower press-out contact surface is for the press head of the press-fitting machine to contact during the press-out force test. The upper and lower parts of the outer side of the steel sleeve have transition radii to meet the feasibility of the steel sleeve manufacturing process.

Description

Technical Field

[0001] This utility model belongs to the field of automotive design technology, specifically relating to a conical limiting structure steel sleeve. Background Technology

[0002] Steering knuckle bushings are key connecting components in automotive steering systems, primarily used for the fit between the steering knuckle and the control arm ball joint. They provide support, reduce wear, and guide the steering, ensuring the vehicle's agility and stability during turns. Their performance directly affects steering accuracy, driving safety, and component lifespan, and they are widely used in the steering knuckle and control arm mounting points of various motor vehicles, including passenger cars, commercial vehicles, and new energy vehicles. With the rapid development of new energy vehicles in recent years, the overall vehicle load has increased significantly, leading to increasingly greater forces between the steering knuckle and control arm.

[0003] Currently, there is basically only one type of steering knuckle steel sleeve structure on the market, which is similar to a T-shaped structure, that is, a combination of a flange face and a cylindrical face, with the flange face used for limiting. However, this structure can cause steering noise problems in new energy vehicles with heavy loads. It can also cause stress concentration in the steering knuckle due to structural problems, leading to failure of the whole vehicle during road tests. Utility Model Content

[0004] This invention proposes a tapered limiting structure steel sleeve to solve the problems of abnormal noise and stress concentration in steering knuckle steel sleeve structures in the prior art.

[0005] To achieve the above objectives, the present invention proposes the following technical solution:

[0006] A conical limiting structure steel sleeve, comprising a steel sleeve body;

[0007] The upper part of the outer side of the steel sleeve body is provided with a conical limiting surface, the lower part is provided with an interference fit surface, and the inner side of the steel sleeve body is provided with a ball pin contact surface.

[0008] The top of the steel sleeve body is provided with a pressing contact surface, and the bottom is provided with a pressing out contact surface.

[0009] Preferably, the tapered limiting surface and the interference fit surface are connected by a transition fillet.

[0010] The advantages of this utility model are:

[0011] This utility model proposes a conical limiting structure steel sleeve. The conical limiting surface is used for limiting the steel sleeve during the press-fitting process. The lower half of the interference fit surface is used for the interference fit between the steel sleeve and the steering knuckle to ensure that the steel sleeve does not fall off. The upper pressing contact surface is used for the press head of the press-fitting machine to contact during the press-fitting process. The lower pressing contact surface is used for the press head of the press-fitting machine to contact during the press-out force test of the steel sleeve. The upper and lower parts of the outer side of the steel sleeve are provided with transition radii to meet the feasibility of the steel sleeve manufacturing process. Attached Figure Description

[0012] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of a conical limiting structure steel sleeve;

[0014] Figure 2 This is a cross-sectional view of a conical limiting structure steel sleeve;

[0015] Figure 3 This is a top view of a conical limiting structure steel sleeve;

[0016] Figure 4 This is a bottom view of a conical limiting structure steel sleeve. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0018] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this invention.

[0019] Please see Figure 1 As shown, this utility model provides a conical limiting structure steel sleeve for use in automotive steering knuckles, including a steel sleeve body 1, a press-in contact surface 2, a ball pin contact surface 3, a conical limiting surface 4, an interference fit surface 5, and a press-out contact surface 6.

[0020] The upper end of the steel sleeve body 1 is provided with a pressing contact surface 2 for the pressing head of the pressing machine to contact during the pressing process of the steel sleeve.

[0021] The steel sleeve body 1 has a ball pin contact surface 3 in the center inside, which is used for the ball pin to be fitted with the steel sleeve, and its size is related to the size of the ball pin.

[0022] The upper part of the outer side of the steel sleeve body 1 is provided with a conical limiting surface 4 for limiting the steel sleeve during the pressing process.

[0023] The lower half of the outer side of the steel sleeve body 1 is provided with an interference fit surface 5 for the steel sleeve to be interference fitted with the steering knuckle, so as to ensure that the steel sleeve does not fall off.

[0024] The lower end of the steel sleeve body 1 is provided with a press-out contact surface 6 for the press head of the press-fitting machine to contact during the press-out force test of the steel sleeve. The upper and lower parts of the outer side of the steel sleeve body 1 are provided with transition rounded corners to meet the feasibility of the steel sleeve manufacturing process.

[0025] The ball pin contact surface 3 ensures normal assembly of the ball pin, the tapered limiting surface 4 effectively solves the problems of abnormal steering noise and vehicle road test failure caused by stress concentration, and the interference fit surface 5 is interference fit with the steering knuckle to prevent the steel sleeve from falling off during use.

[0026] In one specific implementation, such as Figure 2 As shown, the steel sleeve body 1 is connected to the conical limiting surface 4 through the transition fillet 7, and the transition fillet 7 meets the manufacturing process requirements.

[0027] In one specific implementation, such as Figure 3 , Figure 4 As shown, the present invention provides a conical limiting structure steel sleeve. The main body 1 of the steel sleeve is provided with a pressing contact surface 2 and a pressing out contact surface 6, which facilitates the pressing and pressing out of the steel sleeve during the pressing process and meets the pressing requirements.

[0028] This utility model proposes a conical limiting structure steel sleeve that meets the requirements of press-fitting and assembly, as well as the requirements of manufacturing process; it can effectively limit the pressing process, making it convenient for the steel sleeve to be pressed into and out of the steering knuckle; it avoids falling off during use and effectively solves the problems of abnormal steering noise and failure during vehicle road testing.

[0029] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A tapered check structure steel sleeve, characterized in that, The utility model provides a steel sleeve body, a tapered limiting surface is arranged on the upper side of the outer side of the steel sleeve body, an interference fit surface is arranged on the lower side of the outer side of the steel sleeve body, a ball pin contact surface is arranged on the inner side of the steel sleeve body, a press-in contact surface is arranged on the top end of the steel sleeve body, and a press-out contact surface is arranged on the bottom of the steel sleeve body. The tapered limiting surface and the interference fit surface are connected through a transition round angle. ​ 2. A tapered stopper sleeve as claimed in claim 1, wherein ​

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