Automobile brake spring plate

Abstract

The utility model discloses a kind of automobile brake spring piece;Its technical key points are: including bottom sheet, fixed clamping piece, moving clamping piece and fixed sheet, fixed clamping piece and fixed sheet are fixed at the both ends of bottom sheet, fixed clamping piece and moving clamping piece are fixedly connected with the connecting part for providing the elastic potential energy of driving moving clamping piece to fixed clamping piece direction, connecting part includes let go concave section, limiting section and connecting section, let go concave section is located in one end of fixed clamping piece, limiting section is located in one end of moving clamping piece, connecting section is fixed between let go concave section and limiting section, there is deformation gap between let go concave section and limiting section.Optimal mode is through let go concave section on connecting part, so that connecting section is extended, and then the stress generated when moving clamping piece and fixed clamping piece sub deformation can be dispersed to larger area, so that connecting section obtains longer service life, and the abutment of limiting section and let go concave section limits the maximum deformation amplitude of connecting section, further guarantee that connecting section has longer life.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to an automotive brake spring. Background Technology

[0002] Brake pads are a key component of a car's braking system, primarily used to press the brake pads against the brake disc to achieve a braking effect.

[0003] In existing technology, brake springs generally utilize the elasticity of their own material to maintain the gap between the brake pads and the brake disc, so that the brake pads can return to their original position smoothly after the brake is released, thus not affecting the normal driving of the car. However, as the usage time increases, the material itself will experience fatigue, resulting in a decrease in elasticity. This will reduce the brake spring's ability to hold the brake pads, thereby affecting the car's braking ability.

[0004] Therefore, a new method is needed to solve the above problems. Utility Model Content

[0005] In order to solve the above problems, this utility model provides an automotive brake spring.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an automotive brake spring, comprising a base plate, a fixed clamping plate, a movable clamping plate, and a fixed plate. The fixed clamping plate and the fixed plate are respectively fixed to both ends of the base plate. The fixed clamping plate and the fixed plate are used for fixed connection with a brake caliper bracket. The movable clamping plate is used for abutting against the brake pad. A connecting part for providing elastic potential energy to drive the movable clamping plate toward the fixed clamping plate is fixedly connected between the fixed clamping plate and the movable clamping plate. The connecting part includes a clearance recess, a limiting section, and a connecting section. The clearance recess is located at one end of the fixed clamping plate and faces away from the movable clamping plate. The limiting section is located at one end of the movable clamping plate and faces closer to the fixed clamping plate. The connecting section is fixed between the clearance recess and the limiting section. There is a deformation gap between the clearance recess and the limiting section.

[0007] Furthermore, the ratio between the deformation gap and the thickness of the limiting segment is 1-1.5.

[0008] Furthermore: the nearest point of the limiting segment and the yielding recess forms an abutment point, and the abutment point and the fixing clip are on the same plane.

[0009] Furthermore: a notch is provided on the fixed clamping piece, and an outer expansion piece is fixed to the fixed clamping piece at the notch.

[0010] Furthermore, the fixing piece protrudes inward to form an inward fold.

[0011] Furthermore, a raised strip is formed on the movable clamping piece, and the raised strip is located on the side close to the fixed piece.

[0012] Furthermore, the two opposite ends of the substrate are integrally formed with a mounting part and a reinforcing part, which are used to clamp the caliper bracket.

[0013] Furthermore: the middle section of the reinforcing part tapers inward.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] The relief recess on the connecting part extends the connecting section, thereby dispersing the stress generated by the deformation of the moving and fixed clamping pieces over a larger area, resulting in a longer service life for the connecting section. At the same time, the rearward relief recess also allows the moving clamping piece to have a larger range of motion, thus achieving greater elasticity. The contact between the limiting section and the relief recess restricts the maximum deformation range of the connecting section, preventing the deformation from approaching the yield strength, further ensuring a longer service life for the connecting section. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an automotive brake spring provided by this utility model. Figure 1 ;

[0017] Figure 2 A schematic diagram of the structure of an automotive brake spring provided by this utility model. Figure 2 .

[0018] Figure descriptions: 1. Base plate; 11. Mounting part; 12. Reinforcing part; 2. Fixed clamping piece; 21. Outer expansion piece; 3. Movable clamping piece; 31. Protruding strip; 4. Fixing piece; 41. Inner fold; 5. Connecting part; 51. Recessed section; 511. Extension section; 512. Straight section; 52. Limiting section; 53. Connecting section. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 and Figure 2As shown, a type of automotive brake spring includes a base plate 1, a fixed clamping plate 2, a movable clamping plate 3, and a fixed plate 4. The fixed clamping plate 2 and the fixed plate 4 are respectively fixed to both ends of the base plate 1. The fixed clamping plate 2 and the fixed plate 4 are used for fixed connection with the brake caliper bracket. The spring is mounted on the brake caliper bracket through the fixed clamping plate 2 and the fixed plate 4. Since the spring is fixed only by a snap-fit ​​action, it can be easily removed when the clamping plate needs to be replaced, which is convenient for replacement. The movable clamping plate 3 is used to abut against the brake pad. When the car needs to brake, the brake pad will move towards the brake disc, which will put pressure on the movable clamping plate 3. When the braking ends, the movable clamping plate 3 will return to its original state, thereby preventing the brake pad from affecting normal driving. A connecting part 5 is fixedly connected between the fixed clamping plate 2 and the movable clamping plate 3 to provide elastic potential energy to drive the movable clamping plate 3 towards the fixed clamping plate 2. The connecting part 5 includes a clearance recess 51, a limiting section 52, and a connecting section 53. The clearance recess 51 is located at... At one end of the fixed clamping piece 2 and facing away from the moving clamping piece 3, the limiting section 52 is located at one end of the moving clamping piece 3 and facing closer to the fixed clamping piece 2. The connecting section 53 is fixed between the relief recess 51 and the limiting section 52. There is a deformation gap between the relief recess 51 and the limiting section 52. The relief recess 51 increases the movable space of the moving clamping piece 3, thereby strengthening the deformation range of the moving clamping piece 3 and increasing the yield strength of the connecting part 5. At the same time, it can also increase the length of the connecting section 53. The stress generated when the connecting part 5 deforms can be dispersed to a larger area, thereby delaying the phenomenon of metal fatigue to a certain extent and thus extending the service life of the spring. The abutting section 522 and the relief recess 51 can limit the maximum deformation of the moving clamping piece 3 to a certain extent, so that the spring will not have a deformation degree close to the yield strength of the connecting part 5, thereby further ensuring the service life of the spring.

[0021] like Figure 1 and Figure 2 As shown, the ratio between the deformation gap and the thickness of the limiting section 52 is 1-1.5. The nearest point of the limiting section 52 and the relief recess 51 forms the contact point. When the car is not braking, the contact point and the fixed clamp 2 are on the same plane. When the car is braking, the moving clamp 3 can move up to the contact point and contact the relief recess 51. This setting further improves the theoretical maximum deformation range and yield strength that the connecting part 5 can withstand, while limiting the actual maximum deformation range that the connecting part 5 can produce. The actual maximum range is less than the theoretical maximum range, so as to ensure that the connecting part 5 is not under full load, thereby further strengthening the life of the spring.

[0022] like Figure 1 and Figure 2As shown, the fixed clamping plate 2 has a notch, and an outwardly expanding plate 21 is fixed at the notch. The fixed plate 4 protrudes inward to form an inwardly folded portion 41. The movable clamping plate 3 has a protruding strip 31, which is located on the side close to the fixed plate 4. Both the protruding strip 31 and the inwardly folded portion 41 can be used to strengthen the clamping effect of the spring on the brake pad, thereby preventing the brake pad from shifting within the spring and ensuring that the spring can successfully reset the brake pad. The outwardly expanding plate 21 is used to abut against the caliper bracket. When the brake pad is installed in place, the reaction force can be used to make the spring itself and the caliper bracket have higher stability.

[0023] like Figure 1 and Figure 2 As shown, the two opposite ends of the base plate 1 are integrally formed with a mounting part 11 and a reinforcing part 12, respectively. The mounting part 11 and the reinforcing part 12 are used to clamp the brake caliper bracket. The middle section of the reinforcing part 12 is tapered inward. The mounting part 11 and the reinforcing part 12 can strengthen the fixing strength between the spring and the brake caliper bracket. The middle section of the reinforcing part 12 can not only strengthen the clamping force on the brake caliper bracket, but also release the clamping force on the caliper bracket by prying open the reinforcing part 12, thereby facilitating the removal and replacement of the spring.

[0024] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A type of automotive brake spring, characterized in that: The device includes a base plate (1), a fixed clamping plate (2), a movable clamping plate (3), and a fixed plate (4). The fixed clamping plate (2) and the fixed plate (4) are respectively fixed to both ends of the base plate (1). The fixed clamping plate (2) and the fixed plate (4) are used to be fixedly connected to the brake caliper bracket. The movable clamping plate (3) is used to abut against the brake pad. A connecting part (5) is fixedly connected between the fixed clamping plate (2) and the movable clamping plate (3) to provide elastic potential energy to drive the movable clamping plate (3) towards the fixed clamping plate (2). (5) Includes a relief recess (51), a limiting section (52) and a connecting section (53). The relief recess (51) is located at one end of the fixed clamp (2) and faces away from the moving clamp (3). The limiting section (52) is located at one end of the moving clamp (3) and faces closer to the fixed clamp (2). The connecting section (53) is fixed between the relief recess (51) and the limiting section (52). There is a deformation gap between the relief recess (51) and the limiting section (52).

2. The brake shim of claim 1 wherein: The ratio between the deformation gap and the thickness of the limiting segment (52) is 1-1.

5.

3. The brake shim of claim 2 wherein: The nearest point of the limiting segment (52) and the yielding recess (51) forms an abutment point, and the abutment point is on the same plane as the fixed clamp (2).

4. The brake shim of claim 1 wherein: The fixed clamp (2) has a notch, and an outer expansion piece (21) is fixed to the fixed clamp at the notch.

5. The automotive brake spring as described in claim 1, characterized in that: The fixing piece (4) protrudes inward to form an inward fold (41).

6. The brake shim of claim 1 wherein: The movable clamp (3) has a protrusion (31) formed on it, and the protrusion (31) is located on the side close to the fixed piece (4).

7. The brake shim of claim 1 wherein: The substrate (1) has an integrally formed mounting part (11) and a reinforcing part (12) at opposite ends, which are used to hold the caliper bracket.

8. The brake shim of claim 7 wherein: The middle section of the reinforcing part (12) is drawn inward.

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