Noise prevention structure for brake calipers and brake

Abstract

The utility model relates to the field of brakes, and discloses a noise prevention structure for brake calipers, which comprises an attaching piece (1) used for being attached to a caliper body, a first limiting piece (2) arranged on the front side of the attaching piece (1) and used for being buckled on the jaw side (10) of the caliper body, and a second limiting piece (3) arranged on the rear side of the attaching piece (1). A buffer layer (4) used for being in contact with a clamp body is arranged on the inner side of the attaching piece (1), and the buffer layer (4) is fixedly connected with the attaching piece (1). The attaching piece (1) comprises a first piece body (6) arranged in the radial direction, and the first piece body (6) is used for separating the side edge of the brake block from making direct contact with the caliper body. The device has the functions of eliminating noise and the like.

Description

Technical Field

[0001] The utility model relates to the field of brakes, in particular to a noise prevention structure for a brake caliper and a brake. Background Art

[0002] During the braking process of the automobile hydraulic brake caliper, the piston clamps the brake pads distributed on both sides of the brake disc, and prevents the brake disc from rotating through friction, reducing the wheel speed, and playing the role of deceleration and braking. During the entire braking process, the brake pad clamps the brake disc and rotates in the same direction as the brake disc according to the principle of force interaction until it contacts the brake pad support surface on the caliper body and stops rotating, turning into sliding friction between the brake pad friction material surface and the brake disc friction surface. Since the brake pad needs to slide in the open slot, there is a gap between the brake pad and the open slot. Therefore, the brake pad and the brake pad support surface of the caliper body will collide at the moment of contact under the inertia of the rotation speed of the brake disc, and a collision sound will be generated from the surface. When the sound exceeds the limit, it becomes noise, which is named "Rattle" noise according to the rules of the braking industry. For example, Chinese patent CN201920934908.8 discloses a caliper rattle noise test fixture.

[0003] In order to eliminate the rattle noise, a layer of copper paste lubricating grease is applied between the brake block and the support surface to cushion the movement of the brake block and the direct collision with the support. A coating that is too thin will affect the effect, and the grease is easy to stick to dust, which will increase the sliding resistance of the brake block and thus exceed the drag standard. Utility Model Content

[0004] The utility model aims at the shortcomings of the prior art and provides a noise prevention structure for a brake caliper and a brake.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A noise prevention structure for a brake caliper includes a bonding sheet for bonding to a caliper body, a limiting sheet 1 for buckling on the jaw side of the caliper body and a limiting sheet 2 arranged on the rear side of the bonding sheet, a buffer layer for contacting the caliper body is arranged on the inner side of the bonding sheet, and the buffer layer and the bonding sheet are fixedly connected.

[0007] Preferably, the fitting plate comprises a radially arranged plate 1, wherein the plate 1 is used to separate the side edge of the brake block from direct contact with the caliper body.

[0008] Preferably, there are two plates, one for being arranged between the inner brake block and the caliper body, and the other for being arranged between the outer brake block and the caliper body. The two plates are connected by a connecting plate, and a buffer layer is arranged on the inner side of the plate and the connecting plate.

[0009] Preferably, the bonding sheet is a thin steel sheet, and the buffer layer is a 3M tape or a rubber layer.

[0010] Preferably, the limiting piece 1 is an elastic piece, the limiting piece 1 is a bent hook, and the hook can be against the jaw side of the pliers body; a fixing hole is provided on the limiting piece 2, and the limiting piece 2 can be fixed to the back side of the pliers body by screws.

[0011] Preferably, a fixing plate is provided in the middle of the connecting plate, and the fixing plate can be connected and fixed to the return spring plate by rivets.

[0012] The brake comprises a caliper body, in which a noise prevention structure for a brake caliper as described above is installed, a piston is arranged in the caliper body, a brake pad for braking is connected to the end of the piston, a brake cavity is formed in the middle area of ​​the caliper body, the brake pad is located in the brake cavity, a fitting sheet is located on the left and right sides of the brake pad, and the fitting sheet is fitted on the side wall of the caliper body, and the fitting sheet is used to prevent the left and right sides of the brake pad from directly contacting the caliper body.

[0013] Preferably, a return spring is further included, one end of which is supported on the inner brake block, and the other end is supported on the outer brake block, and the middle part of the fitting sheet is connected to the middle part of the return spring sheet by rivets.

[0014] Preferably, the pliers body is provided with a slot on the jaw side, the limit plate 1 is clamped in the slot, the pliers body is provided with a mounting surface on the back side of the pliers, the limit plate 2 is attached to the mounting surface, a fixing hole is provided on the mounting surface, and the limit plate 2 and the pliers body are connected and fixed by fixing bolts.

[0015] The utility model adopts the above technical solution, and has the following significant technical effects:

[0016] The noise elimination device designed by the utility model has reliable noise elimination, and can continuously and stably block the transmission path of the brake block collision sound within a reasonable maintenance cycle of the fixed caliper assembly to prevent the generation of rattle noise. At the same time, it can avoid the negative effects caused by grease and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the device.

[0018] Figure 2 It is a schematic diagram of the overall structure of the device.

[0019] Figure 3 yes Figure 2 sectional view of .

[0020] Figure 4 It is a schematic diagram of the structure of the bonding plate and the brake block.

[0021] The technical names of the illustration marks in the figure are: 1-fitting plate, 2-limiting plate one, 3-limiting plate two, 4-buffer layer, 6-plate one, 7-connecting plate, 8-fixing plate, 9-rivet, 10-jaw side, 11-jaw back side, 12-piston, 13-slot, 14-mounting surface, 15-fixing bolt. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] A noise prevention structure for a brake caliper, comprising a bonding sheet 1 for bonding to a caliper body, a limiting sheet 2 for buckling on a jaw side 10 of the caliper body and a limiting sheet 3 arranged on the rear side of the bonding sheet 1, a buffer layer 4 for contacting the caliper body is arranged on the inner side of the bonding sheet 1, and the buffer layer 4 is fixedly connected to the bonding sheet 1. The bonding sheet 1 is an integrated metal sheet, specifically a thin steel sheet, wherein the limiting sheet 2 and the limiting sheet 3 are formed by bending. The limiting sheet 2 has a certain elastic deformation ability, which is conducive to clamping the caliper body.

[0025] In this embodiment, the fitting sheet 1 includes a radially arranged sheet 1 6, which is used to separate the side of the brake block from direct contact with the caliper body. The radial direction is the direction from the jaw side 10 to the caliper back side 11, that is, the sheet 1 6 and the sheet 2 are located on both sides of the brake block to prevent the two sides of the brake block from direct contact with the caliper body.

[0026] There are two pieces 6, one for setting between the inner brake block and the caliper body, and the other for setting between the outer brake block and the caliper body. The two pieces 6 are connected by a connecting piece 7. The inner sides of the pieces 6 and the connecting piece 7 are both provided with a buffer layer 4. The two pieces 6 and the connecting piece 7 are integrally formed.

[0027] In this solution, the bonding sheet 1 is a thin steel sheet, and the buffer layer 4 is a 3M tape or a rubber layer, and in this embodiment, it is a 3M tape. The limit sheet 1 2 is an elastic sheet, and the limit sheet 1 2 is a hook formed by bending, and the hook can be against the jaw side 10 of the pliers body; the limit sheet 2 3 is provided with a fixing hole, and the limit sheet 2 3 can be fixed to the back side 11 of the pliers body by screws. Specifically, the back side 11 of the pliers body is provided with a fixing plane, and the threaded hole for fixing is provided on the fixing plane. Wherein, the two ends of each sheet 1 6 are provided with a limit sheet 1 2 and a limit sheet 2 3.

[0028] In this embodiment, a fixing plate 8 is provided in the middle of the connecting plate 7, and the fixing plate 8 can be connected and fixed to the return spring plate by a rivet 9. This structural design can ensure the shaking of the anti-noise device and can stably support the return spring plate.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that the buffer layer 4 is an EPDM rubber layer.

[0031] Example 3

[0032] The brake comprises a caliper body, in which a noise prevention structure for a brake caliper is installed, a piston 12 is arranged in the caliper body, and a brake pad for braking is connected to the end of the piston 12. A brake cavity is formed in the middle area of ​​the caliper body, and the brake pad is located in the brake cavity. A bonding sheet 1 is located on the left and right sides of the brake pad, and the bonding sheet 1 is bonded to the side wall of the caliper body. The bonding sheet 1 is used to prevent the left and right sides of the brake pad from directly contacting the caliper body.

[0033] The invention also includes a return spring, one end of which is supported on the inner brake block, and the other end is supported on the outer brake block. The middle part of the fitting sheet 1 is connected to the middle part of the return spring sheet by a rivet 9. The caliper body is provided with a slot 13 on the jaw side 10, and the limit piece 1 2 is clamped in the slot 13. The caliper body is provided with a mounting surface 14 on the back side 11 of the caliper, and the limit piece 2 3 is fitted on the mounting surface 14. The mounting surface 14 is provided with a fixing hole, and the limit piece 2 3 and the caliper body are connected and fixed by a fixing bolt 15.

Claims

1. A noise prevention structure for a brake caliper, characterized in that: The invention comprises a bonding sheet (1) for bonding to a pliers body, a limiting sheet (2) for buckling on a jaw side (10) of the pliers body and a limiting sheet (3) arranged at the rear side of the bonding sheet (1) are arranged at the front side of the bonding sheet (1), a buffer layer (4) for contacting the pliers body is arranged at the inner side of the bonding sheet (1), and the buffer layer (4) and the bonding sheet (1) are fixedly connected.

2. A noise prevention structure for a brake caliper according to claim 1, characterized in that: The fitting plate (1) comprises a radially arranged plate 1 (6), wherein the plate 1 (6) is used to separate the side edge of the brake block from direct contact with the caliper body.

3. A noise prevention structure for a brake caliper according to claim 2, characterized in that: There are two plates (6), one for being arranged between the inner brake block and the caliper body, and the other for being arranged between the outer brake block and the caliper body. The two plates (6) are connected by a connecting plate (7), and a buffer layer (4) is arranged on the inner side of the plates (6) and the connecting plate (7).

4. A noise prevention structure for a brake caliper according to claim 1, characterized in that: The bonding sheet (1) is a thin steel sheet, and the buffer layer (4) is a 3M adhesive tape or a rubber layer.

5. The noise prevention structure for a brake caliper according to claim 1, characterized in that: The first limiting piece (2) is an elastic piece, and the first limiting piece (2) is a hook formed by bending, and the hook can be pressed against the jaw side (10) of the pliers body; the second limiting piece (3) is provided with a fixing hole, and the second limiting piece (3) can be fixed to the back side (11) of the pliers body by screws.

6. A noise prevention structure for a brake caliper according to claim 3, characterized in that: A fixing plate (8) is arranged in the middle of the connecting plate (7), and the fixing plate (8) can be connected and fixed to the return spring plate by a rivet (9).

7. Brake, characterized in that: The invention comprises a caliper body, in which a noise prevention structure for a brake caliper as claimed in any one of claims 1 to 5 is installed, a piston (12) is arranged in the caliper body, and a brake pad for braking is connected to the end of the piston (12), a brake cavity is formed in the middle area of ​​the caliper body, and the brake pad is located in the brake cavity, a bonding sheet (1) is located on the left and right sides of the brake pad, and the bonding sheet (1) is bonded to the side wall of the caliper body, and the bonding sheet (1) is used to prevent the left and right sides of the brake pad from directly contacting the caliper body.

8. The brake according to claim 7, characterized in that: It also includes a return spring, one end of which is supported on the inner brake block and the other end is supported on the outer brake block. The middle part of the fitting sheet (1) is connected to the middle part of the return spring sheet through a rivet (9).

9. The brake according to claim 7, characterized in that: The pliers body is provided with a slot (13) on the jaw side (10), the limiting piece 1 (2) is locked in the slot (13), the pliers body is provided with a mounting surface (14) on the pliers back side (11), the limiting piece 2 (3) is fitted on the mounting surface (14), a fixing hole is provided on the mounting surface (14), and the limiting piece 2 (3) and the pliers body are connected and fixed by a fixing bolt (15).

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