Automobile brake pad with automatic dust discharging structure

Abstract

The utility model relates to the technical field of automobile brake pads, in particular to an automobile brake pad with an automatic dust discharge structure, which comprises a back plate, a steel plate and a brake disc, the side surface of the steel plate is fixedly connected with the side surface of a friction block, the steel plate is detachably mounted on the back plate, a fixing plate is fixedly mounted on the side surface of the back plate, and the fixing plate is detachably mounted on the friction block. A dust discharging mechanism is mounted on the back plate and the friction block; the dust discharging mechanism comprises a synchronizer, a friction wheel, a dust suction hole, a dust collecting box, a rotating rod, an impeller, a dust guide groove and a dust discharging pipe, according to the automobile brake pad with the automatic dust discharging structure, dust generated by abrasion of the friction block can be actively discharged out of the brake pad, and therefore the influence of the dust on the brake effect is avoided, damage of the dust to a brake system is reduced, and the service life of the brake pad is prolonged. And compared with traditional passive dust discharging, dust discharging is more thorough, and the influence of dust on the brake performance of the brake pad is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile brake pads, in particular to an automobile brake pad with an autonomous dust removal structure.

[0002] BACKGROUND ART Automotive brake pads, also known as brake leathers, refer to friction materials fixed to a brake drum or brake disc that rotates with the wheel. The friction lining and friction pads withstand external pressure, generating friction to achieve the purpose of decelerating the vehicle. During the braking process, the brake pads rub against the brake disc, generating a large amount of dust and debris due to friction. This dust and debris not only accumulates on the surface of the brake pads, affecting the braking effect, but may also damage the brake system.

[0003] At present, some brake pads with dust removal functions have appeared on the market, but most of these products adopt passive dust removal, that is, during the braking process, the dust relies on its own gravity and friction to be discharged from the dust removal groove on the friction pad. However, since the dust removal groove on the brake pad is roughly flush with the ground after the brake pad is installed, the dust is not completely discharged under the action of gravity and friction, resulting in dust residue affecting the braking performance of the brake pad. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses an automobile brake pad with an autonomous dust removal structure. The technical solution adopted is as follows: the brake pad comprises a back plate, a steel plate and a brake disc. The side surface of the steel plate is fixedly connected to the side surface of the friction block. The steel plate is detachably mounted on the back plate. A fixing plate is fixedly mounted on the side surface of the back plate. The back plate and the friction block are equipped with a dust removal mechanism.

[0005] The dust collecting box is installed in the dust collecting box body, and the dust collecting box body has a bottom end and a bottom end.

[0006] As a preferred technical solution of the present invention, the friction wheel is an inner and outer ring structure, the outer ring is made of a carbon-ceramic composite material, and the inner ring is made of a rubber material.

[0007] As a preferred technical solution of the present invention, the synchronizer includes a synchronous wheel and a synchronous belt. There are two synchronous wheels, and the two synchronous wheels are rotatably mounted on the side surfaces at both ends of the fixed plate. The axis of the end surface of one of the synchronous wheels passes through the through hole on the side surface of the fixed plate and is fixedly connected to the middle part of the end surface of the friction wheel. The inner side surface of the other synchronous wheel is fixedly connected to the side surface at one end of the outer side of the rotating rod. The two synchronous wheels are connected by a synchronous belt.

[0008] As a preferred technical solution of the present invention, elastic hooks are fixedly installed on the side surfaces of both ends of the back plate, and the steel plate is connected to the side surfaces of the back plate through the elastic hooks.

[0009] As a preferred technical solution of the present invention, a plurality of positioning holes are provided on the side surface of the back plate, and positioning columns matching the positioning holes are fixedly mounted on the side surface of the steel plate.

[0010] Beneficial effects of the utility model:

[0011] 1. During the braking process, the friction block of the utility model will approach the brake disc and contact with the brake disc to generate friction and brake. The dust generated during the braking process will enter the dust guide groove as the brake disc rotates. When the friction block contacts the brake disc, the friction wheel will also contact the brake disc. As the brake disc rotates, the friction between the brake disc and the friction wheel will drive the friction wheel to rotate. The friction wheel will drive the rotating rod and the impeller to rotate through the synchronizer. As the impeller rotates, an air flow is formed between the dust guide groove, the dust suction hole, the dust collection box and the dust exhaust pipe, so that the dust in the dust guide groove enters the dust collection box with the air flow and is discharged to the outside of the brake pad through the dust exhaust pipe, thereby avoiding the influence of dust on the braking effect and reducing the damage of dust to the brake system. Moreover, the dust is discharged to the outside through the air flow. Compared with traditional passive dust exhaust, the dust exhaust is more thorough, thereby effectively avoiding the influence of dust on the braking performance of the brake pad.

[0012] 2. The friction wheel made of carbon-ceramic composite material does not deform at high temperatures and has good stability. The synchronizer can synchronously drive the rotating rod to rotate when the friction wheel rotates, so that the impeller generates airflow. The steel plate can be easily disassembled through the elastic hook, which is convenient for the replacement of the steel plate and friction block. The positioning hole and the positioning column can provide positioning for the steel plate to keep it stable after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the use state of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a partial enlarged structural diagram of point A of the present utility model;

[0016] Figure 4 This is a partial enlarged structural diagram of position B of the present utility model;

[0017] Figure 5 This is a schematic diagram of the side structure of the back panel of the utility model;

[0018] Figure 6 This is a schematic diagram of the internal structure of the dust collection box of the utility model;

[0019] Figure 7 This is a schematic diagram of the internal structure of the back panel of the utility model;

[0020] Figure 8 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 9 This is a schematic diagram of the side structure of the steel plate of the utility model;

[0022] Figure 10 This is a schematic structural diagram of the friction wheel of the utility model.

[0023] In the figure: 1 back plate, 2 steel plate, 3 friction block, 4 dust exhaust mechanism, 41 synchronizer, 411 synchronous wheel, 412 synchronous belt, 42 friction wheel, 43 dust suction hole, 44 dust collection box, 45 rotating rod, 46 impeller, 47 dust guide groove, 48 dust exhaust pipe, 5 fixing plate, 6 elastic hook, 7 positioning hole, 8 positioning column, 9 brake disc. DETAILED DESCRIPTION

[0024] Example 1

[0025] like Figures 1 to 10 As shown, the utility model discloses an automobile brake pad with an independent dust exhaust structure, the technical solution adopted is, comprising a back plate 1, a steel plate 2 and a brake disc 9, the side surface of the steel plate 2 is fixedly connected to the side surface of the friction block 3, the steel plate 2 is detachably mounted on the back plate 1, and elastic hooks 6 are fixedly mounted on the side surfaces at both ends of the back plate 1, the steel plate 2 is clamped on the side surface of the back plate 1 by the elastic hooks 6, the steel plate 2 can be conveniently disassembled by the elastic hooks 6, and the steel plate 2 and the friction block 3 can be easily replaced, a plurality of positioning holes 7 are opened on the side surface of the back plate 1, and positioning posts 8 that match the positioning holes 7 are fixedly mounted on the side surface of the steel plate 2, and the positioning holes 7 and the positioning posts 8 can provide positioning for the steel plate 2 to keep it stable after installation, a fixing plate 5 is fixedly mounted on the side surface of the back plate 1, and a dust exhaust mechanism 4 is mounted on the back plate 1 and the friction block 3;

[0026] The dust exhaust mechanism 4 includes a synchronizer 41, a friction wheel 42, a dust suction hole 43, a dust collecting box 44, a rotating rod 45, an impeller 46, a dust guide groove 47 and a dust exhaust pipe 48. The dust collecting box 44 is fixedly installed in the cavity inside the back plate 1. The side of the dust collecting box 44 is fixedly connected to one end of the dust exhaust pipe 48. The dust exhaust pipe 48 is connected to the dust collecting box 44. One end of the outer side of the dust exhaust pipe 48 extends to the outside of the back plate 1. A rotating rod 45 is rotatably installed in the back plate 1. One end of the rotating rod 45 is fixedly connected to the middle of the end face of the impeller 46. The other end of the rotating rod 45 extends to the outside of the back plate 1 and passes through the through hole on the fixed plate 5. The impeller 46 is located inside one end of the inner side of the dust exhaust pipe 48. The dust guide groove 47 7 is opened on the side of the friction block 3, and a number of dust guide grooves 47 are provided. A dust suction hole 43 is opened on the side wall of each dust guide groove 47. The dust suction hole 43 passes through the friction block 3 and the steel plate 2 and is connected to the dust collection box 44. The friction wheel 42 is rotatably mounted on the bottom of one end of the fixed plate 5. The friction wheel 42 is connected to the rotating rod 45 through the synchronizer 41. The synchronizer 41 includes a synchronous wheel 411 and a synchronous belt 412. There are two synchronous wheels 411. The two synchronous wheels 411 are rotatably mounted on the side surfaces of the two ends of the fixed plate 5. The axis of the end face of one synchronous wheel 411 passes through the through hole on the side face of the fixed plate 5 and is fixedly connected to the middle part of the end face of the friction wheel 42. The inner side of the other synchronous wheel 411 It is fixedly connected to the side surface of one end of the outer side of the rotating rod 45, and the two synchronous wheels 411 are connected by a synchronous belt 412. The friction wheel 42 cooperates with the brake disc 9. The friction wheel 42 has an inner and outer ring structure, the outer ring is made of carbon-ceramic composite material, and the inner ring is made of rubber material. The friction wheel 42 made of carbon-ceramic composite material does not deform at high temperatures and has good stability. During the braking process, the friction block 3 will approach the brake disc 9 and contact with the brake disc 9 to generate friction to brake. The dust generated during the braking process will enter the dust guide groove 47 as the brake disc 9 rotates. When the friction block 3 contacts the brake disc, the friction wheel 42 will also contact the brake disc 9. As the brake disc 9 rotates The friction between the brake disc 9 and the friction wheel 42 will drive the friction wheel 42 to rotate, and the friction wheel 42 will drive the rotating rod 45 and the impeller 46 to rotate through the synchronizer 41. As the impeller 46 rotates, an airflow is formed between the dust guide groove 47, the dust suction hole 43, the dust collecting box 44 and the dust exhaust pipe 48, so that the dust in the dust guide groove 47 enters the dust collecting box 44 with the airflow and is discharged to the outside of the brake pad through the dust exhaust pipe 48, thereby avoiding the influence of dust on the braking effect and reducing the damage of dust to the brake system. Moreover, the dust is discharged to the outside through the airflow. Compared with traditional passive dust exhaust, the dust exhaust is more thorough, thereby effectively avoiding the influence of dust on the braking performance of the brake pad.

[0027] The working principle of the utility model is as follows: the steel plate 2 is placed on the back plate 1, and the steel plate 2 is pushed to deform the elastic hook 6 so that the positioning column 8 on the steel plate 2 is inserted into the positioning hole 7 on the back plate 1. When the side of the steel plate 2 contacts the back plate 1, the elastic hook 6 returns to its original shape and clamps the steel plate 2 on the back plate 1. The back plate 1, the steel plate 2 and the friction block 3 are installed in the brake caliper in the manner of a traditional brake pad. When the car brakes, the wheel cylinder on the brake caliper pushes the back plate 1 and the steel plate 2 to move, so that the friction block 3 contacts the brake disc 9 to generate friction and brake. During the friction process between the friction block 3 and the brake disc 9, wear dust will be generated. The dust will enter the dust guide groove 47 as the brake disc 9 rotates. When the wheel cylinder drives the back plate 1 to move for braking, the friction wheel 42 on the back plate 1 will contact the brake disc 9. As the brake disc 9 rotates, the friction force between the brake disc 9 and the friction wheel 42 drives the friction wheel 42 to rotate, so that the friction wheel 42 drives one of the synchronous wheels 411 to rotate, so that the synchronous wheel 411 drives the synchronous belt 412 to rotate, so that the synchronous belt 412 drives another synchronous wheel 411 to rotate, so that the other synchronous wheel 411 drives the rotating rod 45 to rotate, so that the rotating rod 45 drives the impeller 46 to rotate, so that airflow is generated in the dust exhaust pipe 48, and the airflow causes the air in the dust collection box 44 to be discharged to the outside, so that the external air enters the dust collection box 44 through the dust guide groove 47 and the dust suction hole 43, and as the impeller 46 rotates, the air and dust in the dust collection box 44 are discharged to the outside through the dust exhaust pipe 48. After the friction block 3 is severely worn, the steel plate 2 and the friction block 3 can be removed from the back plate 1 and replaced. It is worth noting that the friction wheel 42 in the present invention is an inner and outer ring structure, the inner ring is rubber, and the outer ring is a carbon-ceramic composite material. After the friction block 3 is worn, when braking, the inner ring rubber of the friction wheel 42 is slightly deformed, so that the friction block 3 can still be in close contact with the brake disc to achieve friction braking after wear.

[0028] Components not described in detail herein are prior art.

[0029] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. An automobile brake pad with an autonomous dust removal structure, comprising a back plate (1), a steel plate (2) and a brake disc (9), wherein the side surface of the steel plate (2) is fixedly connected to the side surface of the friction block (3), and characterized in that: The steel plate (2) is detachably mounted on the back plate (1), a fixed plate (5) is fixedly mounted on the side of the back plate (1), and a dust exhaust mechanism (4) is mounted on the back plate (1) and the friction block (3); the dust exhaust mechanism (4) comprises a synchronizer (41), a friction wheel (42), a dust suction hole (43), a dust collecting box (44), a rotating rod (45), an impeller (46), a dust guide groove (47) and a dust exhaust pipe (48); the dust collecting box (44) is fixedly mounted in a cavity inside the back plate (1), the side of the dust collecting box (44) is fixedly connected to one end of the dust exhaust pipe (48), the dust exhaust pipe (48) is connected to the inside of the dust collecting box (44), one end of the outer side of the dust exhaust pipe (48) extends to the outer side of the back plate (1), a rotating rod (45) is rotatably mounted in the back plate (1), and the rotating rod (45) is rotatably mounted in the back plate (1). One end of the movable rod (45) is fixedly connected to the middle of the end face of the impeller (46), and the other end of the rotating rod (45) extends to the outside of the back plate (1) and passes through the through hole on the fixed plate (5). The impeller (46) is located inside one end of the inner side of the dust exhaust pipe (48). The dust guide groove (47) is opened on the side of the friction block (3). There are several dust guide grooves (47). A dust suction hole (43) is opened on the side wall of each dust guide groove (47). The dust suction hole (43) passes through the friction block (3) and the steel plate (2) and is connected to the dust collecting box (44). The friction wheel (42) is rotatably mounted on the bottom of one end of the fixed plate (5). The friction wheel (42) is connected to the rotating rod (45) through a synchronizer (41). The friction wheel (42) cooperates with the brake disc (9).

2. The automobile brake pad with an autonomous dust removal structure according to claim 1, characterized in that: The friction wheel (42) is an inner and outer ring structure, the outer ring is made of a carbon-ceramic composite material, and the inner ring is made of a rubber material.

3. The automobile brake pad with an autonomous dust removal structure according to claim 1, characterized in that: The synchronizer (41) includes a synchronous wheel (411) and a synchronous belt (412). Two synchronous wheels (411) are provided. The two synchronous wheels (411) are rotatably mounted on the side surfaces at both ends of the fixed plate (5). The axis of the end surface of one of the synchronous wheels (411) passes through a through hole on the side surface of the fixed plate (5) and is fixedly connected to the middle part of the end surface of the friction wheel (42). The inner side surface of the other synchronous wheel (411) is fixedly connected to the side surface of one end of the outer side of the rotating rod (45). The two synchronous wheels (411) are connected by a synchronous belt (412).

4. The automobile brake pad with an autonomous dust removal structure according to claim 1, characterized in that: Elastic hooks (6) are fixedly mounted on the side surfaces of both ends of the back plate (1), and the steel plate (2) is clamped on the side surfaces of the back plate (1) via the elastic hooks (6).

5. The automobile brake pad with an autonomous dust removal structure according to claim 1, characterized in that: A plurality of positioning holes (7) are provided on the side surface of the back plate (1), and positioning columns (8) matching with the positioning holes (7) are fixedly mounted on the side surface of the steel plate (2).

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