Structure of high-strength sintered motorcycle brake pad

Abstract

The utility model discloses a high -strength sintered motorcycle brake pad's structure, including installation backplate, and set up the brake pad piece on installation backplate still include: hinged adjusting mechanism sets up on installation backplate, and the adjusting arm of hinged adjusting mechanism is fixedly connected with brake pad piece, the top of adjusting arm is provided with the accommodation groove, heat -sensitive linkage element is set up in accommodation groove and is respectively with adjusting arm and brake pad piece and is in contact with the cooperation, the utility model provides a high -strength sintered motorcycle brake pad's structure has integrated manual wedge -shaped adjusting mechanism and heat -sensitive self -adaptation heat dissipation mechanism, both solved the performance attenuation problem caused by long -term wear, and solved the heat recession problem caused by instantaneous high temperature, realized the performance stability under the whole working condition, utilizes bimetallic strip and realizes temperature perception and initiative heat dissipation, changes passive heat dissipation for initiative heat dissipation, and the brake safety under high temperature environment has been improved significantly, adopts sintered material and pure mechanical linkage structure, and the response is quick.

Description

Technical Field

[0001] This utility model relates to the field of brake pad technology, and in particular to the structure of high-strength sintered motorcycle brake pads. Background Technology

[0002] The motorcycle braking system is a critical component for ensuring driving safety, and the brake pad, as a core and easily worn part, directly affects the braking effect. Current motorcycle brake pads mainly suffer from the following problems: Wear and tear cannot be automatically compensated: Traditional brake pads will gradually wear down during use, resulting in increased brake clearance and reduced braking performance, requiring periodic manual adjustment or replacement.

[0003] Poor heat dissipation: During continuous braking or emergency braking, the temperature of the brake pads rises sharply, which can easily lead to thermal fade and affect braking performance. Utility Model Content

[0004] Therefore, it is necessary to provide a high-strength sintered motorcycle brake pad structure to address the aforementioned technical problems and solve the issues of poor brake pad wear compensation and heat dissipation in the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The structure of a high-strength sintered motorcycle brake pad includes a mounting backplate for fixing to a brake caliper, and brake pad blocks disposed on the mounting backplate, wherein the brake pad blocks are at least two independent blocks arranged along an arc direction, characterized in that it further includes: A hinge adjustment mechanism is installed on the mounting back plate, and the adjustment arm of the hinge adjustment mechanism is fixedly connected to the brake pad block; The top of the adjusting arm is provided with a receiving groove; The thermal linkage element is disposed in the receiving groove and respectively contacts and engages with the adjusting arm and the brake pad; The thermal linkage element is configured to drive the adjusting arm to generate a synchronous, outward opening angle α on the friction surfaces of each brake pad when the braking temperature reaches a preset threshold, so as to form an active heat dissipation airflow between adjacent brake pads.

[0006] Furthermore, the thermal linkage element includes at least one bimetallic strip, one end of which is fixed to the inner bottom wall of the adjusting arm, and the other end is a free end that abuts against and is linked with the brake pad. The bimetallic strip is formed by laminating two metals with different coefficients of thermal expansion.

[0007] Furthermore, the adjusting arm includes a pivot seat disposed on the back of each adjusting arm and a pivot pin disposed on the brake pad, the brake pad being rotated through the cooperation of the pivot seat and the pivot pin.

[0008] Furthermore, the brake pad is sintered from copper-based and iron-based powders, and is doped with ceramic particles to improve frictional stability and graphite to aid heat dissipation.

[0009] Furthermore, the opening angle α ranges from 2° to 15°.

[0010] Furthermore, a return spring is provided between the adjusting arm and the brake pad, which is used to drive the brake pad to return to the initial closed state after the braking temperature decreases.

[0011] Furthermore, the hinge adjustment mechanism includes a fixed arm fixedly mounted on the back plate. The fixed arm and the adjustment arm are slidably engaged by a slide groove and a slider. The rectangular block above the adjustment arm has a dovetail groove structure and can slide along the guide rail. The U-shaped groove below the fixed arm provides a dovetail groove guide rail.

[0012] Furthermore, the hinge adjustment mechanism also includes an adjustment bolt and an adjustment nut, wherein the adjustment bolt passes through the fixed arm and one end of the adjustment arm and is threadedly connected to the adjustment nut; The adjusting bolt has two arc-shaped pads that are adapted to the fixed arm and the adjusting arm, respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The high-strength sintered motorcycle brake pad provided by this utility model integrates a manual wedge adjustment mechanism and a thermosensitive adaptive heat dissipation mechanism, which solves both the performance degradation problem caused by long-term wear and the thermal decay problem caused by instantaneous high temperature, achieving stable performance under all working conditions; it utilizes a bimetallic strip to achieve temperature sensing and active heat dissipation, changing passive heat dissipation to active heat dissipation, significantly improving braking safety in high-temperature environments; it adopts high-strength sintered materials and a purely mechanical linkage structure, which has a rapid response, high reliability, and effectively extends the overall service life of the braking system. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the high-strength sintered motorcycle brake pad provided by this utility model; Figure 2 A side view of the structure of the high-strength sintered motorcycle brake pad provided by this utility model; Figure 3 A cross-sectional schematic diagram of the hinge adjustment mechanism of the high-strength sintered motorcycle brake pad provided by this utility model. Figure 4 A schematic cross-sectional view of the thermal linkage element of the high-strength sintered motorcycle brake pad provided by this utility model. Figure 5A schematic diagram showing the disassembled structure of the hinge adjustment mechanism of the high-strength sintered motorcycle brake pad provided by this utility model.

[0015] The markings in the diagram are explained as follows: 1. Install the back panel; 2. Brake pads; 3. Hinged adjustment mechanism; 31. Adjusting arm; 32. Receiving groove; 33. Fixed arm; 34. Adjusting bolt; 35. Adjusting nut; 36. Pivot seat; 37. Pivot pin; 4. Thermal linkage element; 5. Active cooling airflow. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention. Example

[0017] Please refer to Figure 1-5 The structure of a high-strength sintered motorcycle brake pad includes a mounting backplate 1 for fixing to a brake caliper, and brake pad blocks 2 disposed on the mounting backplate 1, wherein the brake pad blocks 2 are at least two independent blocks arranged along an arc direction, characterized in that it further includes: The hinge adjustment mechanism 3 is mounted on the mounting back plate 1, and the adjustment arm 31 of the hinge adjustment mechanism 3 is fixedly connected to the brake pad block 2. The top of the adjusting arm 31 is provided with a receiving groove 32; The thermal linkage element 4 is disposed in the receiving groove 32 and respectively abuts against the adjusting arm 31 and the brake pad 2; The thermal linkage element 4 is configured to drive the adjusting arm 31 to generate a synchronous, outward opening angle α on the friction surfaces of each brake pad 2 when the braking temperature reaches a preset threshold. This forms an active cooling airflow duct 5 between adjacent brake pads 2. When the wheel rotates at high speed, these airflow ducts generate a forced airflow similar to a "turbine effect," drawing in cool air and quickly carrying away heat from the braking area. The heat dissipation efficiency is improved by more than 30% compared to traditional structures. This can rapidly reduce the braking system temperature, effectively suppress thermal fade, and ensure reliable braking force even under extreme conditions.

[0018] The adjusting arm 31 includes a pivot seat 36 disposed on the back of each adjusting arm 31 and a pivot pin 37 disposed on the brake pad 2. The brake pad 2 rotates through the cooperation of the pivot seat 36 and the pivot pin 37, so that the brake pad 2 can rotate 2° to 15° around the pivot pin 32.

[0019] A return spring (not shown in the figure) is disposed between the adjusting arm 31 and the brake pad 2, and always provides a preload force to close the brake pad 2 inward, so as to drive the brake pad 2 back to the initial closed state after the braking temperature decreases.

[0020] Example 1

[0021] The structure of the high-strength sintered motorcycle brake pad provided in Embodiment 1 is further optimized. Specifically, the thermal linkage element 4 includes at least one bimetallic strip. One end of the bimetallic strip is fixed to the inner bottom wall of the adjusting arm 31, and the other end is a free end that abuts against and is linked with the brake pad block 2. The bimetallic strip is made of two metals with large differences in thermal expansion coefficients, such as steel and brass, which are firmly bonded together.

[0022] Specifically, under normal braking or low-temperature conditions, the bimetallic strip remains flat at a low temperature. At this time, the tension of the return spring causes each brake pad 2 to come together tightly, forming a continuous arc surface on the friction surface, ensuring the maximum effective contact area with the brake disc and providing stable braking force.

[0023] High temperature state such as Figure 4 As shown: Under extreme conditions such as continuous downhill driving or emergency braking, the braking system generates a large amount of heat, and the temperature rises rapidly. The heat is transferred to the bimetallic strip through the brake pad 2. When the temperature reaches a preset threshold, such as 120°C, the bimetallic strip bends and deforms towards its free end due to the difference in the thermal expansion coefficients of the two metals, generating a strong thrust. This thrust acts on the back of the brake pad 2, overcoming the tension of the return spring, and drives the brake pad 2 to open outward by a small angle α around the pivot pin 32. When braking ends and the temperature drops below the threshold, the bimetallic strip cools down and returns to its straight position. The return spring then pulls the brake pad 2 back to its initial closed state. The entire process is completely automatic and requires no manual intervention.

[0024] Example 2

[0025] The structure of the high-strength sintered motorcycle brake pad provided in Embodiment 1 or 2 is further optimized. The hinge adjustment mechanism 3 includes a fixed arm 33 fixedly installed on the back plate 1. The fixed arm 33 and the adjustment arm 31 are slidably engaged by a slide groove and a slider. The rectangular block above the adjustment arm 31 has a dovetail groove structure and can slide along the guide rail. The U-shaped groove below the fixed arm 33 provides a dovetail groove guide rail.

[0026] The hinge adjustment mechanism 3 also includes an adjustment bolt 34 and an adjustment nut 35. The adjustment bolt 34 passes through one end of the fixed arm 33 and the adjustment arm 31 and is threadedly connected to the adjustment nut 35. Among them, two arc-shaped pads that are adapted to the fixed arm 33 and the adjusting arm 31 are respectively connected through the adjusting bolt 34.

[0027] Specifically, when the brake pad 2 experiences excessive brake clearance due to wear, it can be manually adjusted. First, loosen the adjusting nut 35. Then, use a wrench to rotate the adjusting bolt 34 clockwise. Since the adjusting bolt 34 is connected to the slider on the adjusting arm 31, while the fixed arm 33 remains in the same position, the rotating adjusting bolt 34 will drive the adjusting arm 31, along with the brake pad 2 on it, to slide a small distance outward along the groove toward the brake disc.

[0028] Example 3

[0029] The structure of the high-strength sintered motorcycle brake pad provided in Example 3 is further optimized. The brake pad 2 is sintered from copper-based and iron-based powders, and its interior is doped with ceramic particles to improve frictional stability and graphite to assist in heat dissipation. The brake pad made with the above structure has excellent wear resistance, heat resistance and frictional stability.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A structure for a high-strength sintered motorcycle brake pad, comprising a mounting backplate (1) for fixing to a brake caliper, and brake pad blocks (2) disposed on the mounting backplate (1), wherein the brake pad blocks (2) are at least two independent blocks arranged along an arc direction, characterized in that, Also includes: The hinge adjustment mechanism (3) is set on the mounting back plate (1), and the adjustment arm (31) of the hinge adjustment mechanism (3) is fixedly connected to the brake pad (2); The top of the adjusting arm (31) is provided with a receiving groove (32); The thermal linkage element (4) is disposed in the receiving groove (32) and respectively abuts against the adjusting arm (31) and the brake pad (2); The thermal linkage element (4) is configured to drive the adjusting arm (31) to generate a synchronous, outward opening angle (α) on the friction surfaces of each brake pad (2) when the braking temperature reaches a preset threshold, so as to form an active heat dissipation air duct (5) between adjacent brake pads (2).

2. The structure of the high-strength sintered motorcycle brake pad according to claim 1, characterized in that, The thermal linkage element (4) includes at least one bimetallic strip, one end of which is fixed to the inner bottom wall of the adjusting arm (31), and the other end is a free end that abuts against the brake pad (2).

3. The structure of the high-strength sintered motorcycle brake pad according to claim 1, characterized in that, The adjusting arm (31) includes a pivot seat (36) disposed on the back of each adjusting arm (31) and a pivot pin (37) disposed on the brake pad (2). The brake pad (2) rotates through the cooperation of the pivot seat (36) and the pivot pin (37).

4. The structure of the high-strength sintered motorcycle brake pad according to claim 1, characterized in that, The brake pad (2) is sintered from copper-based and iron-based powders, and is doped with ceramic particles to improve friction stability and graphite to aid heat dissipation.

5. The structure of the high-strength sintered motorcycle brake pad according to claim 1, characterized in that, The opening angle (α) ranges from 2° to 15°.

6. The structure of the high-strength sintered motorcycle brake pad according to claim 1, characterized in that, A reset spring is also provided between the adjusting arm (31) and the brake pad (2) to drive the brake pad (2) back to the initial closed state after the braking temperature decreases.

7. The structure of the high-strength sintered motorcycle brake pad according to claim 1, characterized in that, The hinge adjustment mechanism (3) includes a fixed arm (33) fixedly mounted on the back plate (1), and the fixed arm (33) and the adjustment arm (31) are slidably engaged by a groove and a slider.

8. The structure of the high-strength sintered motorcycle brake pad according to claim 7, characterized in that, The hinge adjustment mechanism (3) further includes an adjustment bolt (34) and an adjustment nut (35), wherein one end of the adjustment bolt (34) passes through the fixed arm (33) and the adjustment arm (31) and is threadedly connected to the adjustment nut (35); Among them, two arc-shaped pads that are adapted to the fixed arm (33) and the adjusting arm (31) are connected through the adjusting bolt (34).

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