Wear-resistant brake pad structure

Abstract

The utility model relates to a wear-resisting type brake pad structure which comprises a brake pad body, a first wear-resisting piece detachably arranged on the brake pad body, a second wear-resisting piece arranged on the first wear-resisting piece, a hub chuck used for installing the brake pad body and a heat dissipation mechanism used for conducting heat dissipation on the brake pad body. The heat dissipation mechanism comprises heat dissipation holes, a sliding cavity and a sliding plate which is used for scraping dust attached in the heat dissipation holes and makes contact with the brake pad body. The abrasion-resistant brake pad structure further comprises a limiting mechanism which is arranged on the brake pad body and used for being rapidly installed and limited between the limiting mechanism and a hub chuck. According to the technical scheme, through the first wear-resisting piece, the second wear-resisting piece and the heat dissipation mechanism, the wear-resisting performance of the brake pad body can be improved, heat dissipation work can be conducted on the brake pad body, the adhesion amount of dust in the heat dissipation holes is reduced, and the service life of the brake pad body is prolonged in a disguised mode.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile brake pads, in particular to a wear-resistant brake pad structure. Background Art

[0002] Although the traditional brake pad structure meets the basic requirements of automobile braking to a certain extent, it has significant deficiencies in terms of wear resistance. These brake pads usually directly install the brake pad body on the back plate by means of planar adhesion. Although this connection method is simple, it has obvious limitations. The planar adhesion method often leads to insecure installation, easy loosening or even falling off, thus affecting the braking performance and safety. In addition, the traditional brake pad structure also has deficiencies in heat transfer and heat dissipation effects. If the heat generated during braking cannot be dissipated in a timely and effective manner, it will reduce the wear resistance of the brake pads.

[0003] A wear-resistant brake pad structure disclosed in a Chinese patent (publication number CN219840954U) has an installation back plate, heat-conducting convex tubes, a brake pad body, docking grooves, back plate gaskets, heat dissipation hollow grooves, reinforcing ribs, and heat dissipation curved tubes. When installing the brake pad body, the heat-conducting convex tubes are inserted into the bottom of the brake pad body and cooperate with the docking grooves, thereby increasing the firmness of the installation and more firmly installing and fixing the brake pad body. The protruding structure also improves heat transfer. Then, with the design of multiple heat dissipation curved tubes in the installation back plate, the heat dissipation effect is improved.

[0004] However, in actual use, the above structure does not have a wear-resistant layer, which means that during frequent braking, the brake pad body will directly bear the friction and wear from the brake disc. This will undoubtedly accelerate the consumption of the brake pad material and shorten its service life. In the long run, it will not only lead to a gradual decline in braking performance but also may increase the braking distance and affect driving safety. In addition, without the protection of the wear-resistant layer, the brake pad body is more vulnerable to harsh environmental factors such as high temperature and humidity, further exacerbating its aging and damage. Content of the Utility Model

[0005] In view of the above problems, a wear-resistant brake pad structure is provided, which solves the problem that the brake pad body directly contacts the automobile wheel hub during use through a first wear-resistant piece, a second wear-resistant piece, and a heat dissipation mechanism.

[0006] To solve the problems of the prior art, the utility model provides a wear-resistant brake pad structure, which includes a brake pad main body, a first wear-resistant piece detachably arranged on the brake pad main body, a second wear-resistant piece arranged on the first wear-resistant piece, a wheel hub chuck for installing the brake pad main body, and a heat dissipation mechanism for dissipating heat from the brake pad main body. The heat dissipation mechanism includes heat dissipation holes, a sliding chamber, and a sliding plate for scraping off the dust attached in the heat dissipation holes and contacting the brake pad main body. The wear-resistant brake pad structure further includes a limiting mechanism arranged on the brake pad main body for quickly installing and limiting between the wheel hub chuck.

[0007] Preferably, the heat dissipation mechanism further includes a stroke chamber and a stroke block; the stroke chamber is opened on the wheel hub chuck and there are a pair of them; the stroke block is slidably arranged in the stroke chamber, and the stroke block is fixedly connected with the sliding plate.

[0008] Preferably, the heat dissipation mechanism further includes a limiting rod and an elastic reset spring; there are a pair of limiting rods arranged in the stroke chamber, and the limiting rods are used to limit the horizontal linear sliding of the stroke block; the elastic reset spring is arranged in the stroke chamber, and the elastic reset spring is fixed to the end of the stroke block.

[0009] Preferably, the heat dissipation mechanism further includes a first discharge chamber and a second discharge chamber; the first discharge chamber is opened below the wheel hub chuck, and the first discharge chamber is used to discharge gravel and the like in the wheel hub chuck by free fall; the second discharge chamber is opened on the wheel hub chuck, and the second discharge chamber corresponds to the position of the sliding plate and is used to timely discharge the dust scraped at the sliding plate.

[0010] Preferably, the limiting mechanism includes limiting pieces, limiting grooves, and docking blocks; there are several limiting pieces arranged on the brake pad main body; the limiting grooves are opened on the wheel hub chuck main body and correspond to the positions of the limiting pieces; the docking blocks are slidably arranged on the limiting pieces in the horizontal linear direction.

[0011] Preferably, the limiting mechanism further includes a docking groove and a locking bolt; the docking groove is opened on the docking block, and the docking groove is used to limit the docking block from being inserted onto the limiting piece; the locking bolt is threadedly connected to the docking block and the limiting piece.

[0012] The beneficial effects of the utility model compared with the prior art are as follows:

[0013] 1. By setting the first wear-resistant piece, the second wear-resistant piece and the heat dissipation mechanism, the utility model can improve the wear resistance of the brake pad main body and dissipate heat from the brake pad main body, reduce the adhesion amount of dust in the heat dissipation holes, and indirectly extend the service life of the brake pad main body.

[0014] 2. The utility model achieves automatic scraping and cleaning of dust or sand and gravel in the heat dissipation holes opened on the hub chuck when the brake pad body is not in contact with the surface of the vehicle wheel hub by setting a stroke chamber and a stroke block.

[0015] 3. The utility model achieves the automatic reset effect of the sliding plate by setting a limiting rod and an elastic reset spring, and performing a reset action through the horizontal linear sliding of the stroke block along the limiting rod.

[0016] 4. The utility model achieves the self-cleaning effect of dust and sand and gravel by setting a first discharge chamber and a second discharge chamber, and the sand and gravel or dust that is not scraped and contacted by the sliding plate can be directly discharged through the first discharge chamber opened on the hub chuck.

[0017] 5. The utility model saves and simplifies the installation time of the docking block and the limiting piece by setting a limiting piece, a limiting groove and a docking block.

[0018] 6. The utility model can prevent the brake pad body from shaking when braking a running vehicle by setting a docking groove and a locking bolt, and improves the use stability of the brake pad body. Description of the Drawings

[0019] Figure 1 is a three-dimensional structure diagram of a wear-resistant brake pad structure.

[0020] Figure 2 is a side view structure diagram of a wear-resistant brake pad structure.

[0021] Figure 3 is a rear three-dimensional structure diagram of a wear-resistant brake pad structure.

[0022] Figure 4 is a side view sectional three-dimensional structure diagram of 2 of a wear-resistant brake pad structure.

[0023] Figure 5 is an exploded three-dimensional structure diagram of a wear-resistant brake pad structure.

[0024] Figure 6 is a wear-resistant brake pad structure Figure 5 enlarged structure diagram at A in.

[0025] Figure 7 is a three-dimensional structure diagram of the sliding plate and the stroke block of a wear-resistant brake pad structure.

[0026] The reference numerals in the figure are: 1, brake pad body; 2, first wear-resistant piece; 3, second wear-resistant piece; 4, wheel hub chuck; 5, heat dissipation mechanism; 51, heat dissipation holes; 52, sliding chamber; 53, sliding plate; 54, stroke chamber; 55, stroke block; 56, limiting rod; 57, elastic reset spring; 58, first discharge chamber; 59, second discharge chamber; 6, limiting mechanism; 61, limiting piece; 62, limiting groove; 63, docking block; 64, docking groove; 65, locking bolt. Detailed implementation mode

[0027] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the drawings and specific implementation modes.

[0028] See Figures 1-4 As shown, a wear-resistant brake pad structure includes a brake pad body 1, a first wear-resistant piece 2 detachably arranged on the brake pad body 1, a second wear-resistant piece 3 arranged on the first wear-resistant piece 2, a wheel hub chuck 4 for installing the brake pad body 1, and a heat dissipation mechanism 5 for dissipating heat from the brake pad body 1. The heat dissipation mechanism 5 includes heat dissipation holes 51, a sliding chamber 52, and a sliding plate 53 for scraping off the dust attached in the heat dissipation holes 51 and contacting the brake pad body 1. The wear-resistant brake pad structure further includes a limiting mechanism 6 arranged on the brake pad body 1 for quickly installing and limiting with the wheel hub chuck 4. The heat dissipation holes 51 penetrate through the wheel hub chuck 4 in the horizontal straight line direction. The first wear-resistant piece 2 is preferably a semi-metallic friction material, made of a mixture of metal fibers and non-metallic materials, with characteristics such as high strength, high temperature resistance, and stable braking performance. The first wear-resistant piece 2 and the second wear-resistant piece 3 are connected by phenolic resin glue. Phenolic resin has excellent heat resistance, wear resistance, and chemical stability, and can maintain a stable bonding strength at high temperatures, ensuring that the brake pads will not fall off or fail due to temperature rise during braking. The second wear-resistant piece 3 is the side in contact with the surface of the automobile wheel hub. The first wear-resistant piece 2 and the brake pad body 1 are adhesively connected by epoxy resin. Epoxy resin also has good high temperature resistance and bonding strength to reduce the heat transfer from the first wear-resistant piece 2 generating high temperature to the brake pad body 1. And the second wear-resistant piece 3 is a carbon fiber friction material. Carbon fiber has characteristics such as high strength, high temperature resistance, and corrosion resistance, and the made brake pads have excellent braking performance and good wear resistance. The wheel hub chuck 4 is provided with a through groove for the piston rod to connect with the brake pad body 1.

[0029] When the first wear-resistant piece 2 and the second wear-resistant piece 3 need to be quickly installed on the brake pad body 1, first, the first wear-resistant piece 2 and the second wear-resistant piece 3 are adhesively connected through an adhesive, and then the connected first wear-resistant piece 2 and second wear-resistant piece 3 are adhesively connected to the brake pad body 1 through the adhesive again. At this time, the connection between the first wear-resistant piece 2 and the second wear-resistant piece 3 is completed. The first wear-resistant piece 2 and the second wear-resistant piece 3 have good wear resistance. When the first wear-resistant piece 2 and the second wear-resistant piece 3 are not completely consumed by the vehicle wheel hub, the vehicle wheel hub does not contact the brake pad body 1, which can improve the service life of the brake pad body 1. When the brake pad body 1 contacts the surface of the vehicle wheel hub to decelerate the vehicle during driving, during this process, the sliding plate 53 always contacts the brake pad body 1, and air can enter the hub chuck 4 through the heat dissipation holes 51, and then the brake pad body 1 can be cooled. When the brake pad body 1 does not contact the surface of the vehicle wheel hub and is not braking the vehicle during driving under the drive of the piston cylinder, the brake pad body 1 can be located in the hub chuck 4 through the sliding chamber 52. During this process, the sliding plate 53 is driven to contact the heat dissipation holes 51 and slide in a horizontal linear direction. At this time, the sand or dust blocked in the heat dissipation holes 51 can be scraped and cleaned, which can ensure the cleanliness of the hub chuck 4 and reduce the amount of dust attached to the heat dissipation holes 51, and indirectly extend the service life of the brake pad body 1.

[0030] See Figure 5 and Figure 6 As shown, the heat dissipation mechanism 5 further includes a stroke chamber 54 and a stroke block 55; the stroke chamber 54 is opened on the hub chuck 4 and there are a pair of them; the stroke block 55 is slidably arranged in the stroke chamber 54, the stroke block 55 is fixedly connected to the sliding plate 53, and the sliding plate 53 is in a semi-circular shape that more conforms to the inner diameter of the hub chuck 4.

[0031] When the brake pad body 1 contacts the sliding plate 53, during this process, the stroke block 55 fixedly connected to the sliding plate 53 can slide stably in a horizontal linear direction along the stroke chamber 54 opened on the hub chuck 4. During the sliding process, the sliding plate 53 can be driven to scrape the heat dissipation holes 51 in contact. When scraping, the dust attached to the heat dissipation holes 51 can be squeezed and scraped out, so that when the brake pad body 1 does not contact the surface of the vehicle wheel hub, the dust or sand in the heat dissipation holes 51 opened on the hub chuck 4 can be automatically scraped and cleaned.

[0032] See Figure 7 As shown, the heat dissipation mechanism 5 further includes a limiting rod 56 and an elastic return spring 57; there are a pair of limiting rods 56 arranged in the stroke chamber 54, and the limiting rods 56 are used to limit the horizontal linear sliding of the stroke block 55; the elastic return spring 57 is arranged in the stroke chamber 54, and the elastic return spring 57 is fixedly connected to the end of the stroke block 55.

[0033] When the stroke block 55 slides in the horizontal linear direction along the stroke chamber 54, during this process, the stroke block 55 can be driven to slide stably along the clearance-fitted limiting rod 56. During the sliding process, the elastic return spring 57 can be compressed. When the brake pad body 1 brakes a running vehicle, the sliding plate 53 can, under the influence of the elastic return spring 57, perform a reset action by sliding in the horizontal linear direction along the limiting rod 56 through the stroke block 55, achieving the automatic reset effect of the sliding plate 53.

[0034] See Figure 5 and Figure 6 As shown, the heat dissipation mechanism 5 further includes a first discharge chamber 58 and a second discharge chamber 59; the first discharge chamber 58 is opened below the hub chuck 4, and the first discharge chamber 58 is used to discharge gravel, etc. in the hub chuck 4 by free fall; the second discharge chamber 59 is opened on the hub chuck 4, and the second discharge chamber 59 corresponds to the position of the sliding plate 53 and is used to discharge the dust scraped at the sliding plate 53 in a timely manner.

[0035] When the sliding plate 53 slides, the dust or gravel in the heat dissipation holes 51 can be driven to be discharged through the second discharge chamber 59, preventing the dust or gravel, etc. from adhering in the hub chuck 4 and affecting the service life of the brake pad body 1. And the gravel or dust that is not scraped and contacted by the sliding plate 53 can be directly discharged through the first discharge chamber 58 opened on the hub chuck 4, achieving the self-cleaning effect of the dust and gravel.

[0036] See Figures 3-5 As shown, the limiting mechanism 6 includes limiting pieces 61, limiting grooves 62 and docking blocks 63; several limiting pieces 61 are arranged on the brake pad body 1; the limiting grooves 62 are opened on the hub chuck 4 main body and correspond to the positions of the limiting pieces 61; the docking blocks 63 are slidably arranged in the horizontal linear direction on the limiting pieces 61.

[0037] When it is necessary to quickly install the brake pad body 1 onto the hub chuck 4, first insert the limiting piece 61 into the limiting groove 62 opened on the hub chuck 4, and then install the docking block 63 on the limiting piece 61. Thus, the docking block 63 can be quickly installed onto the limiting piece 61, saving and simplifying the installation time of the docking block 63 and the limiting piece 61.

[0038] See Figure 5 As shown, the limiting mechanism 6 further includes a docking groove 64 and a locking bolt 65; the docking groove 64 is opened on the docking block 63, and the docking groove 64 is used to limit the insertion of the docking block 63 onto the limiting piece 61; the locking bolt 65 is threadedly connected to the docking block 63 and the limiting piece 61.

[0039] When the docking block 63 is installed on the limiting piece 61, first insert the docking groove 64 formed on the docking block 63 onto the limiting piece 61. The formation of the limiting groove 62 facilitates the quick insertion of the docking block 63 onto the limiting piece 61. After insertion, rotate the locking bolt 65 onto the docking block 63 and the limiting piece 61 through a tool, and then the brake pad body 1 can be quickly installed on the wheel hub chuck 4. Moreover, the settings of the limiting piece 61 and the docking block 63 can prevent the brake pad body 1 from shaking when braking a moving vehicle, improving the use stability of the brake pad body 1.

[0040] The above embodiments only represent one or several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A wear-resistant brake pad structure, comprising a brake pad main body (1), a first wear-resistant sheet (2) detachably arranged on the brake pad main body (1), a second wear-resistant sheet (3) arranged on the first wear-resistant sheet (2), a wheel hub chuck (4) for installing the brake pad main body (1), and a heat dissipation mechanism (5) for dissipating heat from the brake pad main body (1); characterized in that, The heat dissipation mechanism (5) includes heat dissipation holes (51), a sliding chamber (52), and a sliding plate (53) that scrapes the dust attached inside the heat dissipation holes (51) and contacts the brake pad body (1). The wear-resistant brake pad structure further includes a limiting mechanism (6) provided on the brake pad body (1) for quick installation and limitation between the wheel hub chuck (4).

2. The structure of a wear-resistant brake pad according to claim 1, wherein, The heat dissipation mechanism (5) further includes a stroke chamber (54) and a stroke block (55); the stroke chamber (54) is opened on the wheel hub chuck (4) and there are a pair of them; the stroke block (55) is slidably arranged in the stroke chamber (54), and the stroke block (55) is fixedly connected to the sliding plate (53).

3. The structure of a wear-resistant brake pad according to claim 1, characterized in that, The heat dissipation mechanism (5) further includes a limiting rod (56) and an elastic reset spring (57); there are a pair of limiting rods (56) provided in the stroke chamber (54), and the limiting rod (56) is used to limit the horizontal linear sliding of the stroke block (55); the elastic reset spring (57) is provided in the stroke chamber (54), and the elastic reset spring (57) is fixed to the end of the stroke block (55).

4. A wear-resistant brake pad structure according to claim 1, characterized in that The heat dissipation mechanism (5) further includes a first discharge chamber (58) and a second discharge chamber (59); the first discharge chamber (58) is opened below the wheel hub chuck (4), and the first discharge chamber (58) is used to discharge the gravel in the wheel hub chuck (4) by free fall; the second discharge chamber (59) is opened on the wheel hub chuck (4), and the second discharge chamber (59) corresponds to the position of the sliding plate (53) and is used to timely discharge the dust scraped at the sliding plate (53).

5. The structure of a wear-resistant brake pad according to claim 1, characterized in that The limiting mechanism (6) includes limiting pieces (61), limiting grooves (62), and docking blocks (63); a number of limiting pieces (61) are provided on the brake pad body (1); the limiting grooves (62) are opened on the main body of the wheel hub chuck (4) and correspond to the positions of the limiting pieces (61); the docking blocks (63) are slidably arranged in the horizontal linear direction on the limiting pieces (61).

6. A wear-resistant brake pad structure according to claim 5, characterized in that, The limiting mechanism (6) further includes a docking groove (64) and a locking bolt (65); the docking groove (64) is opened on the docking block (63), and the docking groove (64) is used to limit the insertion of the docking block (63) onto the limiting piece (61); the locking bolt (65) is threadedly connected to the docking block (63) and the limiting piece (61).

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