Anti-rotation connecting structure for fixing friction plate back plate and mass block of calipers

Abstract

The utility model relates to the technical field of brake systems, in particular to an anti-rotation connecting structure for fixing a friction plate back plate and a mass block of calipers. An anti-rotation connecting structure of a friction plate back plate and mass blocks for fixing calipers comprises the friction plate back plate and the mass blocks, and is characterized in that the mass blocks are connected to the left side and the right side of the top of the friction plate back plate respectively; the mass block is of a special-shaped structure, and an anti-rotation structure is arranged on the mass block. Compared with the prior art, the anti-rotation connection structure for fixing the friction plate back plate and the mass block of the calipers provides a safe and reliable fixed connection mode for fixing the mass block of a special-shaped structure of the calipers; the fixed calipers can be matched with larger and heavier mass blocks to solve various stubborn low-frequency braking noise problems.

Description

Technical Field

[0001] This utility model relates to the field of braking system technology, specifically to an anti-rotation connection structure for fixing the friction plate backing plate and the mass block of a caliper. Background Technology

[0002] Fixed calipers are prone to low-frequency noise issues during product noise matching development. Through finite element analysis and bench testing, the most effective method to optimize low-frequency noise is to add a counterweight to the friction pad to change its natural frequency, decoupling the resonant frequency and thus optimizing / solving the low-frequency noise problem.

[0003] The weight requirements for the mass block needed to decouple low-frequency noise vary depending on the frequency band. When designing the mass block, for reasons of simplicity in manufacturing and cost, a conventional circular cross-section is often preferred. However, due to limitations in the space allocated for the surrounding rims and calipers, circular mass blocks often fail to meet the weight requirements. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides an anti-rotation connection structure for the friction plate back plate and the mass block used to fix the caliper, providing a safe and reliable fixing connection method for the mass block with an irregular structure used to fix the caliper.

[0005] To achieve the above objectives, an anti-rotation connection structure for a friction plate backing plate and a mass block for fixing a caliper is designed, comprising a friction plate backing plate and a mass block, characterized in that: mass blocks are respectively connected to the top left and right sides of the friction plate backing plate; the mass blocks are irregularly shaped and have an anti-rotation structure.

[0006] The mass block is connected to the top of the friction plate backing plate using connecting bolts.

[0007] The mass block is one of the following shapes: swan neck shape, trapezoid, quadrilateral, polygonal shape, or irregular shape.

[0008] The anti-rotation structure is one or more combinations of groove structure, protrusion structure, and limiting surface structure.

[0009] The swan-neck shaped mass block has a square or circular groove on its lower contact surface.

[0010] The upper side of the swan-neck shaped mass block is provided with an arc-shaped protrusion.

[0011] The lower part of the quadrilateral mass block is provided with an irregularly shaped groove.

[0012] The trapezoidal mass block has a protrusion on its upper part.

[0013] The friction plate back plate has a groove or protrusion structure that matches the anti-rotation structure.

[0014] The friction plate backing plate includes an inner friction plate backing plate and an outer friction plate backing plate, and the structure of the inner friction plate backing plate is the same as that of the outer friction plate backing plate.

[0015] Compared with the prior art, this utility model provides an anti-rotation connection structure for the friction plate back plate and the mass block used for fixing calipers. It provides a safe and reliable fixing connection method for fixing calipers with irregularly shaped mass blocks, enabling the fixing calipers to match larger and heavier mass blocks to solve various stubborn low-frequency braking noise problems. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structural connection of this utility model.

[0017] Figure 2 This is an exploded view of the structure of this utility model.

[0018] Figure 3 This is a schematic diagram of Scheme 1.

[0019] Figure 4 This is a sectional view of the structure of Scheme 1.

[0020] Figure 5 This is a schematic diagram of Scheme 2.

[0021] Figure 6 This is a schematic diagram of the structure of Scheme 3.

[0022] Figure 7 This is a schematic diagram of the structure of Scheme 4.

[0023] Figure 8 This is a schematic diagram of the structure of this utility model installed in a caliper.

[0024] See Figures 1 to 8 1 is the friction plate backing plate, 1-1 is the inner friction plate backing plate, 1-2 is the outer friction plate backing plate, 2 is the mass block, 3 is the connecting bolt, and 4 is the anti-rotation structure. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2As shown, mass blocks are connected to the top left and right sides of the friction plate backing plate, respectively. These mass blocks are irregularly shaped and have a dedicated anti-rotation structure. Compared to conventional circular mass blocks, the irregularly shaped mass blocks have a center of gravity offset, thus requiring an additional anti-rotation structure to prevent rotation and loosening during vehicle vibrations and bumps.

[0027] The mass block is connected to the top of the friction plate backing plate using connecting bolts.

[0028] The mass block can be one of the following shapes: swan neck, trapezoid, quadrilateral, polygon, or irregular. The mass block's shape is designed around the surrounding rim and caliper, with certain modifications to match the appearance requirements of the fixed caliper product, while also meeting the weight requirements for finite element analysis and bench testing.

[0029] The mass block 2 is connected to the top of the friction plate back plate 1 by connecting bolts 3.

[0030] The irregularly shaped mass block 2 is designed around the surrounding rim and caliper, while also being modified in appearance to match the aesthetic requirements of fixed caliper products, for example... Figures 1 to 5 The mass block shown is in the shape of a swan's neck.

[0031] For different projects, it can also be designed as a trapezoid, quadrilateral, polygon, or other irregular shape.

[0032] Compared to a conventional circular mass block, an irregularly shaped mass block, due to its center of mass shift, requires the addition of a corresponding anti-rotation structure 4 to prevent rotation and loosening during vehicle vibration and bumps.

[0033] like Figure 3 , Figure 4 The diagram shows the structure of one embodiment of this utility model. The mass block 2 is shaped like a swan's neck, and a square or circular groove anti-rotation structure 4 is provided on the lower contact surface of the swan-neck shaped mass block 2. Similarly, a protrusion is also added to the friction plate backing plate 1 to cooperate with the square or circular groove anti-rotation structure 4.

[0034] like Figure 5 The diagram shows the structure of Scheme Two of this utility model. The mass block is shaped like a swan's neck, and an arc-shaped anti-rotation structure is provided on the side of the swan-neck shaped mass block. Because the arc-shaped anti-rotation structure is on the side, the contact surface of the mating friction plate backing plate only needs to be a limiting surface.

[0035] like Figure 6The diagram shows the structure of Scheme 3 of this utility model. The mass block is quadrilateral in shape, and a non-circular groove is provided at the bottom of the quadrilateral mass block to prevent rotation. This non-circular groove is shaped like one of the corner edges of the quadrilateral. Therefore, the friction plate backing plate that mates with it can be identical to the structure of Scheme 1, with a square protrusion added at the corresponding position to cooperate with the non-circular groove's anti-rotation structure.

[0036] like Figure 7 The diagram shows the structure of Scheme Four of this utility model. The mass block has a trapezoidal shape, and a raised anti-rotation structure is provided on the upper part of the trapezoidal mass block. Because the raised anti-rotation structure is on the upper part, the contact surface at the top of the mating friction plate backing plate only needs to be a limiting surface.

[0037] like Figure 8 As shown, the irregularly shaped mass block is designed to fit around the surrounding wheel rim and caliper, while also being modified in appearance to match the aesthetic requirements of the fixed caliper product. Compared to a conventional circular mass block, the irregularly shaped mass block, due to its center of gravity offset, requires the addition of corresponding anti-rotation structures to prevent rotation and loosening during vehicle vibrations and bumps.

Claims

1. A rotation-preventing connecting structure for fixing a friction plate back plate of a caliper and a mass block, comprising a friction plate back plate, a mass block, characterized in that: Mass blocks (2) are connected to the top of the friction plate back plate (1) on both sides; the mass blocks (2) are of special-shaped structure, and anti-rotation structures (4) are arranged on the mass blocks (2).

2. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 1, characterized in that: The mass blocks (2) are connected to the top of the friction plate back plate (1) by connecting bolts (3).

3. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 1 or 2, characterized in that: The mass blocks (2) are in one of swan neck shape, trapezoidal shape, quadrilateral shape, polygonal shape and irregular shape.

4. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 1, characterized in that: The anti-rotation structures (4) are one or a combination of groove structure, convex structure and limiting surface structure.

5. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 3, characterized in that: The lower contact surface of the mass block (2) in swan neck shape is provided with a square or circular groove.

6. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 3, characterized in that: The upper side surface of the mass block (2) in swan neck shape is provided with an arc convex.

7. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 3, characterized in that: The lower part of the mass block (2) in quadrilateral shape is provided with a special-shaped groove.

8. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 3, characterized in that: The upper part of the mass block (2) in trapezoidal shape is provided with a convex.

9. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 1, characterized in that: The groove structure or convex structure matched with the anti-rotation structure (4) is arranged on the friction plate back plate (1).

10. The anti-rotation connecting structure for fixing the friction plate back plate and the mass block of the caliper according to claim 1 or 6, characterized in that: The friction plate back plate (1) comprises an inner friction plate back plate (1-1) and an outer friction plate back plate (1-2), and the structure of the inner friction plate back plate (1-1) is consistent with that of the outer friction plate back plate (1-2).

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