A kind of assembly structure for steering gear pressing block and lining
By injection molding the lining on the surface of the steering machine block, combined with the design of limiting ribs, buckle structures and U-shaped connectors, the problem of difficulty and cost of dimensional control in the production of traditional briquet components is solved, and better matching and performance improvement of lining and briquets are achieved.
Patent Information
- Application Number
- CN202420739798.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-11
AI Technical Summary
During the production process of traditional briquet components, the opening size of the lining is difficult to control, resulting in strict assembly dimensions of the briquet and lining, which increases the difficulty and cost of parts production, and there are problems such as easy to take off the lining, easy to break the head structure and abnormal noise.
A structure for assembly of press blocks and linings for steering machine is designed. By injection molding the linings on the surface of the press, and combining the limiting rib strips, buckle structures and U-shaped connectors, an integrated injection molding structure is formed to ensure the close cooperation between the linings and the press.
It reduces the difficulty and cost of parts production, improves the fit between the lining and the briquet, reduces the possibility of abnormal noise, and avoids the lining and the breakage of the head structure.
Smart Images
Figure CN222742768U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile steering systems, in particular to an assembly structure for a steering machine pressure block and a lining. Background Art
[0002] With the improvement of living standards and the development of science and technology, people's dependence on cars has gradually increased, and the requirements for car performance have also gradually increased. The electronic power steering has replaced the original hydraulic power steering. The pressure block assembly is a key component of the electronic power steering, and its performance directly affects the noise and driving feel of the steering gear.
[0003] The traditional briquette assembly firstly die-casts the briquette parts, then injection molds the lining parts, and finally presses the lining into the briquette to form the briquette assembly. In the production process of the briquette assembly, since the lining is injection molded separately, the opening size of the lining is difficult to control; in order to ensure the smooth assembly of the briquette and the lining, the size needs to be strictly controlled, which also leads to the high cost of the briquette parts and the lining parts. Moreover, due to the complex structure of the briquette and the lining, the size control is difficult. After the briquette and the lining are pressed together, there are problems such as the lining being easy to fall out, the lining head structure being easy to break, and the lining being deflected and causing abnormal noise.
[0004] Therefore, it is necessary to design a steering gear pressure block and lining assembly structure to optimize the fit between the pressure block and the lining, reduce the fit size requirements, reduce the difficulty and cost of parts production, and at the same time, improve the performance of the pressure block and the lining after assembly. Summary of the invention
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a steering gear pressure block and lining assembly structure to optimize the fit between the pressure block and the lining, reduce the fit size requirements, reduce the difficulty and cost of parts production, and at the same time, improve the performance of the pressure block and the lining after assembly.
[0006] In order to achieve the above-mentioned purpose, the utility model is a steering gear pressure block and lining assembly structure, including a pressure block and a lining. The lining is injection-molded on the surface of the pressure block. The lining is an integrated injection-molded structure composed of a limiting rib, a buckling structure, a lining body, and a connecting piece. The two lining bodies are connected by a connecting piece. A limiting rib is provided on the back of the lining body. One end of the limiting rib is located at the edge of the lining body, and the other end of the limiting rib extends toward the direction of the connecting piece. The limiting rib is embedded in a limiting groove on the surface of the pressure block. A buckling structure is provided on the back of the connecting piece. The buckling structure is inserted into a stepped hole in the center of the pressure block, and the buckling structure clamps the step of the stepped hole.
[0007] The connecting piece is U-shaped.
[0008] A gap is provided between the limiting rib and the connecting piece.
[0009] A rough structure is provided on the contact surface between the pressing block and the lining.
[0010] Compared with the prior art, the utility model has a lining which is injection-molded on the surface of the pressing block and cooperates with a buckling structure and limiting ribs, which is convenient for size control and reduces the difficulty and cost of parts production; the lining fits better with the pressing block, reducing the possibility of abnormal noise caused by the gap between the two; the lining is prevented from falling out of the pressing block, and the head structure of the lining is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model.
[0012] Figure 2 It is a structural schematic diagram of the back side of the lining of the utility model. DETAILED DESCRIPTION
[0013] The utility model is now further described with reference to the accompanying drawings.
[0014] See also Figure 1 , Figure 2 The utility model is a steering gear pressure block and lining assembly structure, including a pressure block and a lining. The surface of the pressure block 1 is injection molded with a lining 2. The lining 2 is an integrated injection molding structure composed of a limiting rib 21, a buckling structure 22, a lining body 23, and a connecting piece 24. The two lining bodies 23 are connected by a connecting piece 24. The back of the lining body 23 is provided with a limiting rib 21. One end of the limiting rib 21 is located at the edge of the lining body 23, and the other end of the limiting rib 21 extends toward the direction of the connecting piece 24. The limiting rib 21 is embedded in a limiting groove on the surface of the pressure block 1. The back of the connecting piece 24 is provided with a buckling structure 22. The buckling structure 22 is inserted into the stepped hole in the center of the pressure block 1, and the buckling structure 22 clamps the step of the stepped hole.
[0015] See also Figure 2 The connecting piece 24 is U-shaped so that the lining 2 and the pressing block 1 can fit more closely.
[0016] A gap is provided between the limiting rib 21 and the connecting piece 24 to facilitate better injection molding of the lining 2 on the surface of the pressing block 1 .
[0017] A rough structure is provided on the contact surface between the pressing block 1 and the lining 2 to increase the friction between the pressing block 1 and the lining 2, reduce the possibility of the lining 2 moving in series, reduce the processing cost of the pressing block 1, and improve the stability of the pressing block assembly.
[0018] When manufacturing the pressing block assembly, the utility model directly places the pressing block 1 in the plastic mold of the lining 2, and directly injects the lining 2 onto the pressing block 1, which reduces the control of relevant key dimensions, greatly reduces the requirements for the opening size of the pressing block 1 and the back structure of the lining 2, and only needs to control the interface surface of the lining 2 and the opening size of the finished product, which reduces the processing difficulty and enhances the operability. The buckle structure 22 can prevent the lining 4 from falling out, and also makes the head structure of the lining 4 more stable to avoid breaking. Since the lining 2 is a hard plastic part, the limiting ribs 21 and the buckle structure 22 can ensure the close fit between the lining 2 and the pressing block 1, and prevent the lining 2 from moving in any direction up and down and left and right during the operation of the steering gear.
[0019] The lining of the utility model is injection-molded on the surface of the pressing block, and cooperates with the buckling structure and the limiting ribs, which is convenient for size control and reduces the difficulty and cost of parts production; the lining and the pressing block fit better, reducing the possibility of abnormal noise caused by the gap between the two; the lining is prevented from falling out of the pressing block, and the head structure of the lining is more stable.
Claims
1. A steering gear pressure block and lining assembly structure, comprising a pressure block and a lining, characterized in that: A lining (2) is injection molded on the surface of the pressing block (1). The lining (2) is an integrated injection molded structure consisting of a limiting rib (21), a buckling structure (22), a lining body (23), and a connecting piece (24). The two lining bodies (23) are connected by a connecting piece (24). A limiting rib (21) is provided on the back of the lining body (23). One end of the limiting rib (21) is located at the edge of the lining body (23), and the other end of the limiting rib (21) extends in the direction of the connecting piece (24). The limiting rib (21) is embedded in a limiting groove on the surface of the pressing block (1). A buckling structure (22) is provided on the back of the connecting piece (24). The buckling structure (22) is inserted into a stepped hole in the center of the pressing block (1), and the buckling structure (22) clamps the step of the stepped hole.
2. The assembly structure of a steering gear pressing block and a lining according to claim 1, characterized in that: The connecting piece (24) is U-shaped.
3. The assembly structure of a steering gear pressing block and a lining according to claim 1, characterized in that: A gap is provided between the limiting rib (21) and the connecting piece (24).
4. The assembly structure of a steering gear pressing block and a lining according to claim 1, characterized in that: A rough structure is provided on the contact surface between the pressing block (1) and the lining (2).