Automobile brake
By adding elastic mechanism to the screw end of the car brake, the problems of shaking and vibration abnormal noise caused by axial clearance during the transmission process are solved, and higher transmission efficiency and longer service life are achieved.
Patent Information
- Application Number
- CN202323589550.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-12-27
AI Technical Summary
There is an axial gap in existing automobile brakes during transmission, resulting in shaking and vibration noise, affecting the service life of the parts.
The elastic mechanism is added to the end of the screw, including micro-plane bearings, flat washers, corrugated washers and flat washers, which compensate the axial clearance of the screw through the deformation of these components, reduce friction and improve transmission efficiency.
Effectively eliminate the axial clearance of the lead screw, reduce friction during working rotation, avoid abnormal noise caused by stress, and extend the service life of the parts.
Smart Images
Figure CN222458176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of brakes, in particular to an automobile brake. Background Art
[0002] The brake is a device that has the function of slowing down, stopping or keeping moving parts in a stopped state. It is a mechanical part that stops or slows down moving parts in a machine. It is commonly known as brakes. The general working principle of the braking system is to use the mutual friction between the non-rotating elements connected to the body and the rotating elements connected to the wheels to prevent the wheels from rotating or tending to rotate.
[0003] The electronic mechanical braking system has various advantages such as simple layout and fast response, so it can better meet the needs of the rapid development of automobile technology. In the existing technology, the ball screw or planetary roller screw does not eliminate the axial clearance during the transmission process. The excessive clearance of the connecting parts can easily cause shaking and produce vibration and abnormal noise. During the braking process, the impact caused by the force will produce abnormal noise, which will affect the service life of the parts. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a vehicle brake, which solves the problems in the background technology.
[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: an automobile brake, comprising a bracket, a caliper body is installed on the bracket, a nut is arranged in the caliper body, a lead screw is threadedly connected to the inner side of the nut, a piston is arranged at one end of the lead screw, a support, a plane thrust bearing assembly, a pressure sensor and a bushing are sequentially sleeved at the other end of the lead screw, and an elastic mechanism is also arranged at the end of the lead screw away from the piston;
[0006] The caliper body is provided with two friction plates for braking, one of which is against the piston.
[0007] It is further defined that in the above-mentioned automobile brake, the elastic mechanism includes a miniature plane bearing, a flat washer 1, a wave washer and a flat washer 2 which are sequentially sleeved on the lead screw.
[0008] It is further defined that in the above-mentioned automobile brake, the miniature plane bearing is placed in a groove at the end of the caliper body, and the flat washer 1, the wave washer and the flat washer 2 are limited by the bushing and the retaining ring at the end of the screw.
[0009] It is further defined that, in the above-mentioned automobile brake, a limit pin is threadedly connected to the caliper body, and one end of the limit pin abuts against a limit hole on the nut.
[0010] It is further defined that, in the above-mentioned automobile brake, a limiting groove is provided on the outer side of the piston, and the limiting groove is connected to the caliper body through an elastic sealing ring.
[0011] The utility model has the following beneficial effects: the present application adds an elastic mechanism at the end of the screw. During the screw transmission process, this structure not only eliminates the axial clearance of the screw, but also reduces the friction of the screw during operation and rotation, thereby improving the working efficiency of the product, avoiding shaking caused by excessive clearance between the connecting parts, generating vibration and abnormal noise, and also avoiding the problem of impact and abnormal noise caused by force during braking, which affects the service life of parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the elastic mechanism of the utility model.
[0014] In the figure: 1. bracket; 2. caliper body; 3. outer friction plate; 4. inner friction plate; 5. piston; 6. nut; 7. limit pin; 8. screw; 9. support; 10. plane thrust bearing assembly; 11. pressure sensor; 12. bushing; 13. elastic mechanism; 1301. miniature plane bearing; 1302. flat washer 1; 1303. wave washer; 1304. flat washer 2; 14. retaining ring. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] See also Figure 1-2 The utility model provides a technical solution: an automobile brake, comprising a bracket 1, a caliper body 2 is mounted on the bracket 1, a nut 6 is arranged in the caliper body 2, a limit pin 7 is threadedly connected to the caliper body 2, one end of the limit pin 7 is abutted against the limit hole on the nut 6, and is used to limit the nut 6;
[0017] A lead screw 8 is threadedly connected to the inner side of the nut 6, one end of the lead screw 8 is sleeved with a piston 5, and the other end of the lead screw 8 is connected to the motor drive shaft. A limit groove is provided on the outer side of the piston 5, and the limit groove is connected to the caliper body 2 through an elastic sealing ring, which is used to achieve a seal between the piston 5 and the caliper body 2 to prevent dust and the like from entering the piston 5 and causing unnecessary wear of parts.
[0018] The other end of the lead screw 8 is sleeved with a support 9, a plane thrust bearing assembly 10, a pressure sensor 11 and a bushing 12 in sequence. The end of the lead screw 8 away from the piston 5 is also provided with an elastic mechanism 13, which includes a miniature plane bearing 1301, a flat washer 1302, a wave washer 1303 and a flat washer 1304 sleeved on the lead screw 8 in sequence. The miniature plane bearing 1301 is placed in a groove at the end of the caliper body 2, and the flat washer 1302, the wave washer 1303 and the flat washer 1304 are limited by the bushing 12 and the retaining ring 14 at the end of the lead screw 8;
[0019] An inner friction plate 4 and an outer friction plate 3 for braking are provided on the caliper body 2 , wherein the inner friction plate 4 abuts against the piston 5 , and the movement of the piston 5 can drive the inner friction plate 4 to move.
[0020] During braking, the brake motor drives the screw 8 to rotate, pushing the piston 5 forward. The inner friction plate 4 is driven by the piston 5 to approach the outer friction plate 3. The rotating element between the inner friction plate 4 and the outer friction plate 3 is braked under the action of the friction plate. During this process, the corrugated washer 1303 in the elastic mechanism 13 is deformed to compensate for the transmission gap, eliminate the axial gap of the screw 8, reduce the friction of the screw 8 during working rotation, improve the working efficiency of the product, avoid shaking caused by excessive gap in the connecting parts, generate vibration and abnormal noise, and avoid the problem of impact and abnormal noise caused by force during braking, which affects the service life of parts.
[0021] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automobile brake, comprising a bracket (1), a caliper body (2) being mounted on the bracket (1), characterized in that: A nut (6) is provided in the caliper body (2), a lead screw (8) is threadedly connected to the inner side of the nut (6), a piston (5) is provided at one end of the lead screw (8), a support (9), a plane thrust bearing assembly (10), a pressure sensor (11) and a bushing (12) are sequentially sleeved at the other end of the lead screw (8), and an elastic mechanism (13) is also provided at the end of the lead screw (8) away from the piston (5); The caliper body (2) is provided with two friction plates for braking, one of which is against the piston (5).
2. The automobile brake according to claim 1, characterized in that: The elastic mechanism (13) comprises a miniature plane bearing (1301), a flat washer 1 (1302), a wave washer (1303) and a flat washer 2 (1304) which are sequentially sleeved on the lead screw (8).
3. The automobile brake according to claim 2, characterized in that: The miniature plane bearing (1301) is placed in a groove at the end of the caliper body (2), and the flat washer 1 (1302), the wave washer (1303) and the flat washer 2 (1304) are limited by the bushing (12) and the retaining ring (14) at the end of the lead screw (8).
4. The automobile brake according to claim 1, characterized in that: A limit pin (7) is threadedly connected to the pliers body (2), and one end of the limit pin (7) abuts against a limit hole on the nut (6).
5. The automobile brake according to claim 1, characterized in that: A limiting groove is provided on the outer side of the piston (5), and the limiting groove is connected to the caliper body (2) via an elastic sealing ring.