High-rigidity steering knuckle bearing assembly

CN224621979UActive Publication Date: 2026-08-11LIAOCHENG KAIMA BEARING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0004]本实用新型涉及高刚性转向节轴承总成,解决了多数转向节轴承总成的关键部件(如套管、轴承滚子、内外环等)采用普通合金钢材或低碳钢制成,这类材质的刚性与耐磨性有限的问题

Benefits of technology

本申请在材质选用上,两个套管及轴承的滚子、内环、保持架、外环均采用钴基合金,这种材质能有效提升相关部件的刚度与耐磨性,同时,依托优质碳素结构钢的高刚性与弹性,可避免套管在使用中发生变形,切实保障了套管与连接轴连接的稳定性,减少因部件变形或磨损导致的故障风险,延长总成整体使用寿命。

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Abstract

This utility model discloses a high-rigidity steering knuckle bearing assembly, relating to the field of bearing assembly technology, including a steering knuckle base; two sleeves are snap-fitted and fixed on the steering knuckle base, both sleeves are cylindrical tubular structures, both sleeves are made of cobalt-based alloy, and the sleeves are connecting parts for the connecting shaft. In terms of material selection, the two sleeves and the rollers, inner ring, cage, and outer ring of the bearing are all made of cobalt-based alloy. This material can effectively improve the rigidity and wear resistance of related components. At the same time, relying on the high rigidity and elasticity of high-quality carbon structural steel, deformation of the sleeves can be avoided during use, effectively ensuring the stability of the connection between the sleeves and the connecting shaft, reducing the risk of failure due to component deformation or wear, and extending the overall service life of the assembly; the limiting component installed in the steering knuckle base plays a key role. After the limiting seat is fixed by the fixing screw, its rear end face contacts the front end face of the outer ring, which can reliably limit the outer ring.
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Description

Technical Field

[0001] This utility model relates to the field of bearing assembly technology, and in particular to a high-rigidity steering knuckle bearing assembly. Background Technology

[0002] In automotive chassis systems, the steering knuckle bearing assembly is a core component connecting the steering system and the driving system. Its performance directly determines the vehicle's steering precision, driving stability, and overall safety. This assembly must withstand radial loads, axial loads, and impact loads under complex road conditions during long-term vehicle operation. It must also withstand different temperature environments (such as high-temperature exposure and low-temperature freezing) and the corrosive effects of harsh working conditions such as dust and mud. Therefore, extremely high requirements are placed on the rigidity, wear resistance, structural stability, and assembly reliability of the components.

[0003] The existing device also has the following shortcomings: Most key components of steering knuckle bearing assemblies (such as sleeves, bearing rollers, inner and outer rings, etc.) are made of ordinary alloy steel or low carbon steel, which have limited rigidity and wear resistance. Utility Model Content

[0004] This utility model relates to a high-rigidity steering knuckle bearing assembly, which solves the problem that most key components of steering knuckle bearing assemblies (such as sleeves, bearing rollers, inner and outer rings, etc.) are made of ordinary alloy steel or low-carbon steel, which have limited rigidity and wear resistance.

[0005] This utility model provides a high-rigidity steering knuckle bearing assembly, specifically including: a steering knuckle base; two sleeves are snapped and fixed on the steering knuckle base, both sleeves are cylindrical tubular structures, both sleeves are made of cobalt-based alloy, and the sleeves are connecting parts for connecting shafts.

[0006] Furthermore, a bearing is installed inside the steering knuckle base. The bearing consists of an outer ring, a cage, rollers, and an inner ring. An outer ring is fixed inside the steering knuckle base, and a cage is installed inside the outer ring. Rollers rotate at equal intervals on the cage. An inner ring is installed inside the cage, and the outer wall of the inner ring contacts the rollers.

[0007] Furthermore, the roller has a cylindrical structure, and the roller, inner ring, cage, and outer ring are all cobalt-based alloys.

[0008] Furthermore, two rectangular slots are symmetrically formed on the steering knuckle base, and a limiting component is installed inside the steering knuckle base. The limiting component consists of a limiting seat, a fixing screw, and an adjusting groove.

[0009] Furthermore, a limiting seat is engaged within the steering knuckle base, and the limiting seat is fixed to the steering knuckle base by two fixing screws, with the rear end face of the limiting seat contacting the front end face of the outer ring.

[0010] Furthermore, the protruding part of the limiting seat is engaged in the two slots. When the protruding part of the limiting seat is engaged in the two slots, the two fixing screws are aligned with the threaded grooves on the steering knuckle base. When installing the limiting seat, the installation is quicker and more convenient due to the action of the slots.

[0011] Furthermore, the adjustment point of each fixing screw is a hexagonal structure, and each fixing screw adjustment point is provided with an adjustment groove, which is a hexagonal groove structure.

[0012] This utility model provides a high-rigidity steering knuckle bearing assembly, which has the following beneficial effects: In terms of material selection, the rollers, inner ring, cage, and outer ring of the two sleeves and bearings are all made of cobalt-based alloy. This material can effectively improve the rigidity and wear resistance of related components. At the same time, relying on the high rigidity and elasticity of high-quality carbon structural steel, it can prevent the sleeve from deforming during use, effectively ensuring the stability of the connection between the sleeve and the connecting shaft, reducing the risk of failure caused by component deformation or wear, and extending the overall service life of the assembly.

[0013] In terms of structural design, the limiting component installed inside the steering knuckle base plays a crucial role. After the limiting seat is fixed by the fixing screw, its rear end face contacts the front end face of the outer ring, which can reliably limit the outer ring, ensure the stability of the outer ring installation, and thus ensure the smooth operation of the bearing as a whole.

[0014] In terms of ease of installation, the symmetrical slots on the steering knuckle base are adapted to the protruding parts of the limit seat. When the protruding part of the limit seat is engaged in the slot, the fixing screw can automatically align with the threaded groove on the steering knuckle base, which greatly simplifies the installation process of the limit seat, improves installation efficiency, and saves installation time.

[0015] Regarding tool compatibility, this application features a hexagonal structure with a hexagonal adjustment groove at the fixing screw adjustment point. This allows both conventional wrenches and hexagonal wrenches to be used when assembling and disassembling the fixing screw, enhancing tool compatibility, providing convenience for operators, and reducing operational difficulty. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram: Figure 1 A perspective view of the high-rigidity steering knuckle bearing assembly of this utility model is shown; Figure 2This utility model is shown Figure 1 Enlarged view of point A; Figure 3 The front view of the high-rigidity steering knuckle bearing assembly of this utility model is shown; Figure 4 This invention presents a perspective view of the disassembled high-rigidity steering knuckle bearing assembly. Figure 5 This utility model is shown Figure 4 The rotated 3D image.

[0019] List of reference numerals 1. Steering knuckle base; 101. Sleeve; 102. Slot; 2. Bearing; 201. Outer ring; 202. Cage; 203. Roller; 204. Inner ring; 3. Limiting assembly; 301. Limiting seat; 302. Fixing screw; 303. Adjusting groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1 to 5 : This utility model proposes a high-rigidity steering knuckle bearing assembly, including: a steering knuckle base 1; two sleeves 101 are snapped and fixed on the steering knuckle base 1, both sleeves 101 are cylindrical tubular structures, both sleeves 101 are made of cobalt-based alloy, and the sleeves 101 are connecting parts for connecting shafts. During use, due to the high rigidity and elasticity of high-quality carbon structural steel, the sleeves 101 can be prevented from deforming, ensuring the stability and wear resistance of the connection with the connecting shaft.

[0022] The steering knuckle base 1 is equipped with a bearing 2, which consists of an outer ring 201, a cage 202, rollers 203 and an inner ring 204. The outer ring 201 is fixed inside the steering knuckle base 1, and the cage 202 is installed inside the outer ring 201. Rollers 203 rotate at equal intervals on the cage 202. The inner ring 204 is installed on the inner side of the cage 202, and the outer wall of the inner ring 204 contacts the rollers 203.

[0023] Among them, roller 203 has a cylindrical structure. Roller 203, inner ring 204, cage 202 and outer ring 201 are all cobalt-based alloys. During use, they can improve the rigidity and wear resistance of roller 203, inner ring 204, cage 202 and outer ring 201.

[0024] The steering knuckle base 1 has two rectangular slots 102 symmetrically formed. A limit assembly 3 is installed inside the steering knuckle base 1. The limit assembly 3 consists of a limit seat 301, a fixing screw 302 and an adjustment groove 303.

[0025] The steering knuckle base 1 is fitted with a limiting seat 301, which is fixed to the steering knuckle base 1 by two fixing screws 302. The rear end face of the limiting seat 301 is in contact with the front end face of the outer ring 201. During use, the limiting seat 301 can limit the outer ring 201, ensuring the stability of the installation of the outer ring 201.

[0026] The protruding part of the limit seat 301 is engaged in the two slots 102. When the protruding part of the limit seat 301 is engaged in the two slots 102, the two fixing screws 302 are aligned with the threaded grooves on the steering knuckle base 1. When installing the limit seat 301, the installation is quicker and more convenient under the action of the slots 102.

[0027] Example 2, based on Example 1, such as Figures 1 to 5 As shown, the adjustment point of each fixing screw 302 is a hexagonal structure, and each fixing screw 302 adjustment point is provided with an adjustment groove 303. The adjustment groove 303 is a hexagonal groove structure. When disassembling and assembling the fixing screw 302, a conventional wrench or a hex wrench can be used to adjust the fixing screw 302, which has strong adaptability.

[0028] The working principle of this embodiment is as follows: During assembly, the bearing 2, consisting of an outer ring 201, a cage 202, rollers 203, and an inner ring 204, is first installed into the steering knuckle base 1, ensuring that the outer ring 201 is fixed inside the steering knuckle base 1, the cage 202 is installed inside the outer ring 201 and the rollers 203 on it can rotate at equal distances, and the inner ring 204 is installed inside the cage 202 and contacts the rollers 203. Next, the protruding part of the limiting seat 301 in the limiting assembly 3 is engaged into the two symmetrical rectangular slots 102 on the steering knuckle base 1. At this time, the two fixing screws 302 on the limiting seat 301 will automatically align with the threaded grooves on the steering knuckle base 1. Then, using a conventional wrench or a hex wrench, the two fixing screws 302 are tightened through the hexagonal structure or hexagonal groove adjustment groove 303 at the adjustment point of the fixing screws 302, so that the limiting seat 301 is fixed in the steering knuckle base 1. The steering knuckle base 1 is mounted on the steering knuckle base 1, with the rear end face of the limiting seat 301 contacting the front end face of the outer ring 201 to limit the outer ring 201. Finally, two cylindrical tubular cobalt-based alloy sleeves 101 are snapped and fixed onto the steering knuckle base 1, completing the assembly of the high-rigidity steering knuckle bearing assembly. In use, the sleeve 101 is used as a connecting part of the connecting shaft. Because the sleeve 101 is made of cobalt-based alloy and combined with the high rigidity and elasticity of high-quality carbon structural steel, deformation of the sleeve 101 can be avoided, ensuring the stability and wear resistance of the connection with the connecting shaft. At the same time, the roller 203, inner ring 204, cage 202 and outer ring 201 in the bearing 2 are all cobalt-based alloys, which can improve their rigidity and wear resistance, ensuring the stable operation of the assembly. If maintenance is required, a conventional wrench or hex wrench can be used again to disassemble and install the fixing screw 302 through the adjustment groove 303, and the limiting seat 301 can be removed to inspect or replace the internal parts.

Claims

1. A high-rigidity steering knuckle bearing assembly, characterized in that, include: Steering knuckle base (1); two sleeves (101) are snapped and fixed on the steering knuckle base (1). Both sleeves (101) are cylindrical tubular structures. Both sleeves (101) are made of cobalt-based alloy. The sleeves (101) are connecting parts for connecting shafts. A bearing (2) is installed inside the steering knuckle base (1). The bearing (2) consists of an outer ring (201), a cage (202), rollers (203) and an inner ring (204). An outer ring (201) is fixed inside the steering knuckle base (1). A cage (202) is installed inside the outer ring (201). Rollers (203) rotate at equal intervals on the cage (202). An inner ring (204) is installed on the inner side of the cage (202). The outer wall of the inner ring (204) contacts the rollers (203).

2. The high-rigidity steering knuckle bearing assembly according to claim 1, characterized in that, The roller (203) has a cylindrical structure, and the roller (203), inner ring (204), cage (202) and outer ring (201) are all cobalt-based alloys.

3. The high-rigidity steering knuckle bearing assembly according to claim 2, characterized in that, The steering knuckle base (1) has two rectangular slots (102) symmetrically arranged on it. A limit assembly (3) is installed inside the steering knuckle base (1). The limit assembly (3) consists of a limit seat (301), a fixing screw (302) and an adjustment groove (303).

4. The high-rigidity steering knuckle bearing assembly according to claim 3, characterized in that, The steering knuckle base (1) is fitted with a limiting seat (301), which is fixed to the steering knuckle base (1) by two fixing screws (302). The rear end face of the limiting seat (301) is in contact with the front end face of the outer ring (201).

5. The high-rigidity steering knuckle bearing assembly according to claim 4, characterized in that, The protruding part of the limiting seat (301) is engaged in the two slots (102). When the protruding part of the limiting seat (301) is engaged in the two slots (102), the two fixing screws (302) are aligned with the threaded grooves on the steering knuckle base (1). When installing the limiting seat (301), the installation is quicker and more convenient under the action of the slots (102).

6. The high-rigidity steering knuckle bearing assembly according to claim 5, characterized in that, Each of the fixing screws (302) has a hexagonal adjustment point, and each fixing screw (302) has an adjustment groove (303) at its adjustment point. The adjustment groove (303) is a hexagonal groove structure.