Brake block active return spring piece for reducing dragging of calipers

Abstract

The utility model provides a brake block active return spring piece used for reducing dragging of calipers, which comprises a piece-shaped spring piece body, the spring piece body comprises a U-shaped part and V-shaped parts arranged on two sides of the U-shaped part in a mirror image mode, the two V-shaped parts are in smooth arc connection with the U-shaped part, a mounting plate is arranged on one side of the U-shaped part, a mounting hole is formed in the mounting plate, and the U-shaped part is connected with the U-shaped part in a smooth arc mode. Arc parts are arranged at the ends, away from the U-shaped part, of the two V-shaped parts, and inner arcs of the two arc parts face the U-shaped part; the spring piece body comprises the U-shaped part and the V-shaped parts arranged on the two sides of the U-shaped part in a mirroring mode, the spring piece is simple in structure, high in use reliability and convenient to manufacture and produce in batches, the included angles are in circular arc transition, stress concentration is reduced, the included angle of 25 degrees is formed between the U-shaped part and the oppositely-connected V-shaped parts, the included angle between the V-shaped parts is 35 degrees, and the service life of the spring piece is prolonged. The included angle of 95 degrees is formed between the two bent positions of the U-shaped part, so that the U-shaped part has high resilience force when being stressed, and the U-shaped part can quickly respond and rebound to the initial position after the extrusion force is lost.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile braking, in particular to a brake block active return spring sheet for reducing caliper drag. Background Art

[0002] The brake refers to a component that generates braking torque to hinder the movement or movement trend of the vehicle. Currently, friction brakes are mostly used in automobiles. It uses the friction between the working surfaces of fixed elements and rotating elements to generate braking torque. When separating, the fixed element and the rotating element need to be separated by external force to reduce contact and reduce drag. Spring leaves are often used to provide external force.

[0003] For example, the Chinese utility model with announcement number CN209705127U discloses "a spring sheet for a brake caliper". The spring sheet of the brake caliper integrates a buffer and a main body into one, making the structure compact. The fixed end is embedded in the groove of the caliper body to realize the positioning of the main body. Under the elastic action of the main body, the buffer and the caliper body are in flexible contact, which can eliminate the impact of collision. The protrusion first contacts the caliper body, and the protrusion and the caliper body are in point-to-surface contact, which can eliminate the abnormal noise caused by the collision. Then the contact surface of the buffer contacts the caliper body. In this way, the buffer has good buffering and silencing effect, is not easy to deform after long-term use, and has a long service life.

[0004] However, the spring sheet has a complex structure, resulting in high manufacturing costs. In addition, due to its complex structure and the presence of multiple through holes, the spring sheet may experience stress concentration in the complex structure during long-term use, resulting in cracks or even breakage. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a brake pad active return spring sheet for reducing caliper drag, which solves the problem in the prior art that the brake pad active return spring sheet of the traditional caliper has a complex structure and high manufacturing cost, and at the same time, due to its own complex structure, the spring sheet will cause stress concentration in the complex structure during long-term use, resulting in cracks or even breakage.

[0006] According to an embodiment of the utility model, a brake pad active return spring sheet for reducing caliper drag includes a sheet-shaped spring sheet body, the spring sheet body includes a U-shaped portion and a V-shaped portion mirror-imaged on both sides of the U-shaped portion, the two V-shaped portions are connected to the U-shaped portion in a smooth arc, and a mounting plate is provided on one side of the U-shaped portion, a mounting hole is provided on the mounting plate, wherein the two V-shaped portions are provided with an arc portion at one end away from the U-shaped portion, and the inner arcs of the two arc portions are both facing the U-shaped portion.

[0007] Preferably, the U-shaped portion and the relatively connected V-shaped portion form an angle of 25°.

[0008] Preferably, the angle between each V-shaped portion is 35°.

[0009] Preferably, the two bends of the U-shaped portion form an angle of 95°.

[0010] Preferably, the spring sheet body is made of SUS301 stainless steel.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the spring sheet body comprises a U-shaped portion and a V-shaped portion mirror-imaged on both sides of the U-shaped portion, has a simple structure, high reliability in use, and is easy to manufacture in batches. There is only one mounting hole on the body, and each angle is arc-shaped, which reduces stress concentration. A 25° angle is formed between the U-shaped portion and the relatively connected V-shaped portion, and an angle between each V-shaped portion is 35°. A 95° angle is formed at the two bends of the U-shaped portion, so that each angle has a strong resilience when under pressure, and can quickly react and rebound to the initial position after losing the extrusion force. Arc portions are provided at the ends of the two V-shaped portions to avoid scratching the surface in contact with them, and also to avoid abnormal noise when they rub against the contact surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0013] Figure 2 It is the front view of the embodiment of the utility model.

[0014] Figure 3 for Figure 2 Magnified view of area A.

[0015] Figure 4 It is a schematic diagram of the use of the spring sheet body in the embodiment of the utility model.

[0016] In the above drawings: 100, spring sheet body; 1, U-shaped portion; 101, mounting hole; 102, mounting plate; 2, V-shaped portion; 201, arc portion; 3, bolt; 4, caliper body; 5, brake pad body; 7, brake disc body. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] like Figures 1 to 4As shown, an embodiment of the utility model proposes a brake pad active return spring sheet for reducing caliper drag, which includes a sheet-shaped spring sheet body 100, the spring sheet body 100 includes a U-shaped portion 1 and a V-shaped portion 2 mirror-arranged on both sides of the U-shaped portion 1, the two V-shaped portions 2 are smoothly connected to the U-shaped portion 1 in an arc, and a mounting plate 102 is arranged on one side of the U-shaped portion 1, and a mounting hole 101 is opened on the mounting plate 102, wherein the two V-shaped portions 2 are both provided with an arc portion 201 at one end away from the U-shaped portion 1, and the inner arcs of the two arc portions 201 are both facing the U-shaped portion 1.

[0019] The detailed working process of this embodiment is as follows: there is only one mounting hole 101 on the body, and each angle is circularly transitional, which reduces stress concentration. With the arrangement of the mounting plate 102 and the mounting hole 101, the spring sheet body 100 can be mounted on the caliper body 4, and the arc portion 201 serves to prevent the end of the V-shaped portion 2 from scratching the surface in contact with it, and also to prevent it from generating abnormal noise when rubbing against the contact surface.

[0020] like Figure 2 As shown, the U-shaped portion 1 and the V-shaped portion 2 connected thereto form an angle of 25°.

[0021] The detailed working process of this embodiment is: the angle between the U-shaped portion 1 and the relatively connected V-shaped portion 2 is between 22° and 30°. Within a certain range, the larger the angle, the greater the rebound force and the faster the reaction. In this embodiment, the angle between the U-shaped portion 1 and the relatively connected V-shaped portion 2 is 25°; in other embodiments, a suitable angle can be selected according to actual conditions.

[0022] like Figures 2 to 4 As shown, the angle between each V-shaped portion is 35°.

[0023] The detailed working process of this embodiment is: the angle between the V-shaped parts 2 is between 35° and 40°. Within a certain range, the larger the angle, the greater the rebound force and the faster the reaction. In this embodiment, the angle between each V-shaped part 2 is 35°; in other embodiments, a suitable angle can be selected according to actual conditions.

[0024] like Figure 2 As shown, the two bends of the U-shaped portion 1 form an angle of 95°.

[0025] The detailed working process of this embodiment is as follows: the U-shaped portion 1 has two bends with the same bending angle, and the included angle is between 95° and 105°. Within a certain range, the larger the angle, the greater the rebound force and the faster the reaction. In this embodiment, the included angle at the bend of each U-shaped portion 1 is 95°; in other embodiments, a suitable angle can be selected according to actual conditions.

[0026] like Figure 4As shown, the spring leaf body 100 is made of SUS301 stainless steel.

[0027] The detailed working process of this embodiment is as follows: the spring sheet body 100 is SUS301 stainless steel, which has excellent high temperature strength, fatigue resistance and corrosion resistance, and its performance is more outstanding than that of ordinary steel.

[0028] The implementation principle of the embodiment of this application is as follows: Figure 4 As described above, first, the spring sheet body 100 is installed on the caliper body 4 by means of the bolts 3, so that the two V-shaped portions 2 are in contact with the corresponding brake pad body 5. At this time, the arc portions 201 at each end of the two V-shaped portions 2 are tangent to the corresponding brake pad body 5. At this time, under the elastic force of the spring sheet body 100, the brake pad body 5 is separated from the brake disc body 7, and the brake disc body 7 can rotate. The setting of the arc portion 201 avoids scratching and damage to the brake pad body 5, and also avoids abnormal noise when it rubs against the contact surface.

[0029] When braking, the brake block body 5 is pushed to make it close to and abut against the brake disc body 7. At this time, the spring sheet body 100 is compressed and stored by force, and the friction between the brake block body 5 and the brake disc body 7 generates a braking force to achieve the braking operation. When the brake is released, the force that pushes the brake block body 5 to abut against the brake disc body 7 disappears, and the spring sheet body 100 releases the elastic force, pushing the brake block body 5 away from the brake disc body 7, and the friction disappears. The function of the spring sheet body 100 is to quickly separate the brake block body 5 from the brake disc body 7, thereby achieving the effect of reducing drag. At the same time, the rebound direction of the spring sheet body 100 under this structure is perpendicular to the brake block body 5, so that the brake block body 5 will not tilt when it retreats from the brake disc body 7 under the action of the elastic force, which maximizes the separation of the brake block body 5 and the brake disc body 7 and further reduces the drag torque. In addition, the spring sheet body 100 is fixed to the caliper body 4 by a bolt 3, which is reliable to use and easy to disassemble and assemble.

[0030] The braking principle during the above-mentioned braking is common knowledge in the art. Meanwhile, the brake pad, brake disc and caliper body are all common parts and will not be described in detail here.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A brake pad active return spring sheet for reducing caliper drag, comprising a spring sheet body (100) in the form of a sheet, characterized in that: The spring sheet body (100) comprises a U-shaped portion (1) and V-shaped portions (2) arranged in mirror images on both sides of the U-shaped portion (1), the two V-shaped portions (2) being connected to the U-shaped portion (1) in a smooth arc manner, and a mounting plate (102) being arranged on one side of the U-shaped portion (1), and a mounting hole (101) being provided on the mounting plate (102), wherein the ends of the two V-shaped portions (2) away from the U-shaped portion (1) are both provided with arc portions (201), and the inner arcs of the two arc portions (201) are both oriented toward the U-shaped portion (1).

2. The brake pad active return spring sheet for reducing caliper drag according to claim 1, characterized in that: The U-shaped portion (1) and the V-shaped portion (2) connected to it form an angle of 25°.

3. The brake pad active return spring sheet for reducing caliper drag according to claim 2, characterized in that: The included angle between each of the V-shaped portions (2) is 35°.

4. The brake pad active return spring sheet for reducing caliper drag according to claim 3, characterized in that: The two bends of the U-shaped portion (1) form an angle of 95°.

5. The brake pad active return spring sheet for reducing caliper drag according to claim 1, characterized in that: The spring sheet body (100) is made of SUS301 stainless steel.

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