Brake pad support structure

Abstract

The utility model discloses a brake pad support structure which comprises a brake pad support and a brake pad installed on the brake pad support through a connecting structure, a dovetail groove is designed in the back face of the brake pad support, and the corresponding brake pad is inserted into the dovetail groove through a dovetail block to achieve installation and matching. Or, a plurality of connecting protrusions are arranged on the two sides of the front face of the brake pad support, the corresponding brake pads are connected to the connecting protrusions in a sleeved mode through guide clamping sleeves to achieve installation and matching, the brake pad support adopting the technical scheme reserves a traditional dovetail groove structure so as to be matched with rapid installation of existing dovetail type brake pads, the universal connecting protrusions are additionally arranged, and therefore the brake pad support is convenient to use. According to the brake pad support, the non-dovetail type brake pads can be rapidly installed, so that the installation universality is improved, the same brake pad support can be matched with two or more brake pads, the inventory pressure is reduced, the installation selectivity is more, and the effect that one support has multiple purposes of brake system hardware is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of rail vehicle braking systems, specifically to a brake pad support structure. Background Technology

[0002] The basic braking device is a crucial component of the train braking system, primarily consisting of a caliper unit, brake pads, and a brake disc. Its working principle is as follows: when the train brakes, the caliper unit applies a normal force to the brake pads, causing friction between the brake pads and the brake disc to generate braking torque, thus achieving train deceleration and braking. The brake pad holder is the part on the caliper unit that connects and mounts the brake pads. By mounting the brake pads on the holder and having them contact the brake disc, friction braking is achieved. Existing brake pad holders mainly use a dovetail groove at the bottom for mounting brake pads, but this is clearly unsuitable for mounting non-dovetail brake pads. Different brake pad holders usually need to be designed, indicating that existing brake pad holders and brake pads can typically only be matched individually, resulting in poor installation versatility and increased development and maintenance costs. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the fact that in the prior art, the brake pad support and the brake pad can usually only be matched and installed individually, which leads to poor installation versatility of the existing brake pad support and increases development and maintenance costs. Thus, a brake pad support structure with simple installation structure, good installation versatility and reduced cost is provided.

[0004] To solve the above-mentioned technical problems, this utility model provides a brake pad support structure, including a brake pad support and a brake pad mounted on the brake pad support through a connecting structure;

[0005] The connection structure includes a dovetail groove on the back of the brake pad support, a dovetail block on the brake pad and correspondingly inserted into the dovetail groove, and a first locking structure between the brake pad support and the brake pad to maintain their relative positions; or,

[0006] The connection structure includes multiple connecting protrusions on both sides of the front of the brake pad support, multiple guide sleeves correspondingly disposed on both sides of the brake pad and squeezed and fitted onto the multiple connecting protrusions, and a second locking structure disposed between the brake pad support and the brake pad to keep their relative positions fixed.

[0007] As a preferred embodiment, one end of the dovetail groove is a closed end, and the other end is an open insertion end. The first locking structure is disposed at the insertion end to prevent the dovetail block from disengaging from the dovetail groove.

[0008] As a preferred embodiment, the first locking structure includes a positioning groove disposed at one end of the brake pad support, and a stop block connected in the positioning groove via a first positioning shaft. The stop block abuts against the insertion end of the dovetail groove and forms a limiting engagement with the dovetail block.

[0009] As a preferred embodiment, the brake pad support includes two positioning plates disposed on both sides of the positioning groove. The two positioning plates and the stop block are respectively provided with shaft holes through which the first positioning shaft can pass. One end of the first positioning shaft passing through the positioning plate is provided with an elastic limiting pin in the radial direction.

[0010] As a preferred embodiment, the multiple connecting protrusions are multiple guide protrusions formed along the outline edge of the brake pad support on both sides of the front side of the brake pad support.

[0011] As a preferred embodiment, multiple guide sleeves are bent and formed on both sides of the brake plate, and the guide sleeves and the brake plate form a fitting slot suitable for fitting into the connecting protrusion.

[0012] As a preferred embodiment, the brake pad support has two connecting protrusions on each side of its front side, and the brake pad support includes a rib structure connecting the two connecting protrusions on the same side.

[0013] As a preferred embodiment, the second locking structure includes a positioning sleeve disposed at the other end of the brake pad support, and a second positioning shaft passing through the brake pad and the positioning sleeve, the positioning sleeve having a positioning hole for accommodating the second positioning shaft.

[0014] As a preferred embodiment, the side wall of the positioning sleeve is provided with a radial hole that communicates with the positioning hole in the radial direction, and an elastic limiting pin that connects to the second positioning shaft is provided in the radial hole.

[0015] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0016] 1. The brake pad support structure provided by this utility model features a dovetail groove on the back of the brake pad support. The corresponding brake pad is installed by inserting a dovetail block into the dovetail groove. Additionally, multiple connecting protrusions are designed on both sides of the front of the brake pad support. The corresponding brake pad is installed by sliding a guide sleeve onto the connecting protrusions. This brake pad support retains the traditional dovetail groove structure to adapt to the rapid installation of existing dovetail brake pads and adds universal connecting protrusions to support the rapid installation of non-dovetail brake pads, thereby improving installation versatility and meeting the installation requirements of different brake pad types. It reduces the need to develop dedicated brake pad supports for different brake pad types, avoiding resource waste caused by repetitive design, production, and maintenance. It achieves "one support for multiple uses" for braking system hardware, demonstrating significant advantages in product technology iteration, cost control, and operation and maintenance efficiency.

[0017] 2. In the brake pad support structure provided by this utility model, the dovetail groove is arranged on the back of the brake pad support, and the connecting protrusions are arranged on both sides of the front of the brake pad support. When installing the dovetail brake pad, the dovetail block is simply inserted into the dovetail groove. When installing the non-dovetail brake pad, the guide sleeve is simply slidably fitted onto the connecting protrusion. This brake pad support adopts a dual-mode installation structure design, which realizes the compatible installation of multiple types of brake pads through spatial layering and functional complementarity. The installation is convenient and quick, and the fatigue resistance and reliability are enhanced. The same brake pad support can be adapted to two or more types of brake pads, reducing inventory pressure and providing more installation options.

[0018] 3. In the brake pad support structure provided by this utility model, the brake pad support and the brake pad are connected by a wedge-shaped fit between a dovetail block and a dovetail groove, providing stability against shear forces and suitable for high braking pressure scenarios. Then, a first locking structure is used to keep the relative installation position between the brake pad support and the brake pad fixed. This first locking structure uses a stop block fixed at the insertion end of the dovetail groove through a first positioning shaft. The stop block forms a mechanical hard limit on the dovetail block, thereby preventing the dovetail brake pad from coming out of the dovetail groove. It can resist the axial movement of the brake pad caused by vibration or impact during braking, so as to ensure the stability and reliability of the installation between the brake pad support and the brake pad.

[0019] 4. In the brake pad support structure provided by this utility model, after the brake pad support and the brake pad are connected by a guide sleeve and a guide boss, the relative installation position between the two is fixed by a second locking structure. The second locking structure uses a second positioning shaft that passes through the brake pad and is connected to the positioning sleeve set in the brake pad support. The guide sleeve and the guide boss cooperate to provide pre-positioning between the brake pad support and the brake pad, and the positioning cooperation between the second positioning shaft and the positioning sleeve forms axial limitation. This installation design prevents the guide sleeve from slipping off the guide boss, playing an anti-loosening role, and thus preventing the brake pad installed on the brake pad support from shifting. In this way, the installation and fixation between the brake pad support and the brake pad are achieved, ensuring the stability and reliability of the installation of the brake pad support and the brake pad. It can be modularized for quick replacement and is convenient for installation and maintenance. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the brake pad support of this utility model;

[0022] Figure 2This is a schematic diagram of the brake pad support structure in the bottom direction of this utility model;

[0023] Figure 3 This is a schematic diagram of one possible installation of the brake pad support and the brake pad according to this utility model;

[0024] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the brake pad support and the brake pad;

[0025] Figure 5 This is a schematic diagram of another installation of the brake pad support and the brake pad of this utility model;

[0026] Figure 6 for Figure 5 Side view of the installation of the brake pad support and the brake pad;

[0027] Figure 7 for Figure 5 A schematic diagram of the cross-sectional structure of the brake pad support and the brake pad.

[0028] Figure descriptions: 1. Brake pad support; 11. Rib structure; 2. Brake pad; 3. Dovetail groove; 4. Dovetail block; 5. First locking structure; 51. Stop block; 52. First positioning shaft; 53. Positioning groove; 54. Positioning plate; 6. Connecting protrusion; 7. Guide sleeve; 8. Second locking structure; 81. Positioning sleeve; 82. Second positioning shaft; 83. Positioning hole; 9. Elastic limit pin. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Example

[0033] This utility model provides, for example Figure 1-7 The illustrated brake pad support structure includes a brake pad support 1 and a brake pad 2 mounted on the brake pad support 1 via a connecting structure. The side of the brake pad support 1 facing the brake pad 2 is the back side, and the other side is the front side. (Referring to...) Figure 3-4 The diagram illustrates a method for installing a brake pad 2. The connecting structure includes a dovetail groove 3 on the back of the brake pad support 1, a dovetail block 4 on the brake pad 2 and correspondingly inserted into the dovetail groove 3, and a first locking structure 5 between the brake pad support 1 and the brake pad 2 to maintain their relative positions. Clearly, this brake pad support 1 can also accommodate brake pads 2 with non-dovetail structures. (See reference...) Figure 5-7 Another method of installing the brake pad 2 is shown. The connection structure includes multiple connecting protrusions 6 on both sides of the front of the brake pad support 1, multiple guide sleeves 7 correspondingly disposed on both sides of the brake pad 2 and squeezed and fitted onto the multiple connecting protrusions 6, and a second locking structure 8 disposed between the brake pad support 1 and the brake pad 2 to keep their relative positions fixed.

[0034] The above-described implementation method is the core technical solution of this embodiment. By designing a dovetail groove 3 on the back of the brake pad support 1, the corresponding brake pad 2 is installed by inserting a dovetail block 4 into the dovetail groove 3. In addition, by designing multiple connecting protrusions 6 on both sides of the front of the brake pad support 1, the corresponding brake pad 2 is installed by sliding a guide sleeve 7 onto the connecting protrusions 6. The brake pad support 1 using this technical solution retains the traditional dovetail groove 3 structure to adapt to the rapid installation of existing dovetail brake pads 2, and adds universal connecting protrusions 6 to support the rapid installation of non-dovetail brake pads 2, thereby improving the versatility of installation and meeting the installation requirements of different brake pad types. It can reduce the need to develop special brake pad supports due to different brake pad types, avoid the waste of resources caused by repeated design, production and maintenance, and realize the "one support for multiple uses" of braking system hardware. It has significant advantages in terms of technology iteration, cost control and operation and maintenance efficiency.

[0035] The following is combined Figure 1-4 A detailed explanation of one installation method for the brake pad support and brake pads is provided:

[0036] Figure 4The brake pad 2 shown is a dovetail type brake pad, which is installed on the brake pad support 1 by a wedge fit of a dovetail groove 3 and a dovetail block 4. One end of the dovetail groove 3 is a closed end, and the other end is an open insertion end. The first locking structure 5 is disposed at the insertion end to restrict the dovetail block 4 from disengaging from the dovetail groove 3. More preferably, the first locking structure 5 includes a positioning groove 53 disposed at one end of the brake pad support 1, and a stop block 51 connected in the positioning groove 53 by a first positioning shaft 52. The stop block 51 abuts against the insertion end position of the dovetail groove 3 and forms a limiting fit with the dovetail block 4. In this structural configuration, the brake pad support 1 and the brake pad 2 are connected by a wedge-shaped fit between the dovetail block 4 and the dovetail groove 3, providing stability against shear forces and suitable for high braking pressure scenarios. Then, a first locking structure 5 is used to keep the relative installation position between the brake pad support 1 and the brake pad 2 fixed. This first locking structure 5 uses a stop block 51 fixed at the insertion end of the dovetail groove through a first positioning shaft 52. The stop block 51 forms a mechanical hard limit on the dovetail block 4, thereby preventing the dovetail brake pad from coming out of the dovetail groove. It can resist the axial movement of the brake pad caused by vibration or impact during braking, so as to ensure the stability and reliability of the installation between the brake pad support 1 and the brake pad 2.

[0037] As a specific structural configuration, the brake pad support 1 includes two positioning plates 54 disposed on both sides of the positioning groove 53. The two positioning plates 54 and the stop block 51 are respectively provided with shaft holes through which the first positioning shaft 52 can pass. The first positioning shaft 52 positions and connects the stop block 51 between the two positioning plates 54, and at the same time, the installed stop block 51 abuts against the opening end of the dovetail groove 3 to limit the dovetail block 4. In order to prevent the first positioning shaft 52 from disengaging from the shaft holes of the positioning plates and the stop block, an elastic limiting pin 9 is provided radially through one end of the first positioning shaft 52 that passes through the positioning plate 54. The preload of the elastic limiting pin 9 plays an axial limiting role on the first positioning shaft 52, ensuring the installation stability between the first positioning shaft 52 and the stop block 51.

[0038] Next, let's combine... Figure 1-2 , Figure 5-7 A detailed explanation of another installation method for the brake pad support and brake pads:

[0039] Figure 7The brake pad 2 shown is a non-dovetail type brake pad, which is installed on the brake pad support 1 by the insertion and engagement of guide sleeves 7 and connecting protrusions 6. This non-dovetail type brake pad consists of a brake pad body and multiple brake pad blocks provided on the brake pad body. Specifically, the multiple connecting protrusions 6 are multiple guide bosses formed along the contour edge of the brake pad support 1 on both sides of the front of the brake pad support 1. The corresponding multiple guide sleeves 7 are bent and formed on both sides of the brake pad 2. The guide sleeves 7 and the brake pad 2 form an insertion groove suitable for fitting into the connecting protrusion 6. The guide sleeves 7 are locked in place by engaging with the guide bosses through the insertion groove. With this structure, after the brake pad support 1 and the brake pad 2 are positioned and connected by the insertion and engagement of the guide sleeves 7 and the guide bosses, the relative installation position between the brake pad support 1 and the brake pad 2 is fixed by the second locking structure 8. Specifically, the second locking structure 8 includes a positioning sleeve 81 provided at the other end of the brake pad support 1 and a second positioning shaft 82 passing between the brake pad 2 and the positioning sleeve 81. The positioning sleeve 81 has a positioning hole 83 for connecting and accommodating the second positioning shaft 82, and a radial hole is provided on the side wall of the positioning sleeve 81 that connects to the positioning hole 83 radially. An elastic limiting pin 9 is provided in the radial hole to connect the second positioning shaft 82. The elastic limiting pin 9 provides axial limiting for the second positioning shaft 82 in the positioning sleeve 81 to prevent the second positioning shaft 82 from moving out of the positioning sleeve 81. The advantage of this installation design is that the guide sleeve 7 and the guide boss provide pre-positioning between the brake pad support 1 and the brake pad 2, and the positioning cooperation between the second positioning shaft 82 and the positioning sleeve 81 forms axial limiting. This installation design can prevent the guide sleeve 7 from slipping off the guide boss, thus preventing loosening and preventing the brake pad installed on the brake pad support 1 from shifting. This achieves the installation and fixation between the brake pad support 1 and the brake pad 2, ensuring the stability and reliability of the installation of the brake pad support and the brake pad. It can also be modularized for quick replacement and is convenient for installation and maintenance.

[0040] like Figure 1 As shown, two connecting protrusions 6 are respectively provided on both sides of the front of the brake pad support 1. The brake pad support 1 includes a rib structure 11 connecting the two connecting protrusions 6 on the same side. By adding the rib structure 11 to the brake pad support 1, it is made more robust. By optimizing the mechanical distribution and enhancing the local rigidity, the tensile strength and durability of the overall structure of the brake pad support 1 are significantly improved.

[0041] In summary, the brake pad support structure provided in this embodiment, with the dovetail groove 3 located on the back of the brake pad support 1 and the connecting protrusions 6 located on both sides of the front of the brake pad support 1, allows for easy installation of dovetail-type brake pads by simply inserting the dovetail block 4 into the dovetail groove 3, and easy installation of non-dovetail-type brake pads by simply fitting the guide sleeve 7 onto the connecting protrusion 6. This brake pad support adopts a dual-mode installation structure design, achieving compatible installation of multiple types of brake pads through spatial layering and functional complementarity. Installation is convenient and quick, and the same brake pad support can accommodate two or more types of brake pads, reducing inventory pressure and providing more installation options.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A brake pad support structure, comprising a brake pad support (1) and a brake pad (2) mounted on the brake pad support (1) via a connecting structure; characterized in that: The connection structure includes a dovetail groove (3) on the back of the brake pad support (1), a dovetail block (4) on the brake pad (2) and correspondingly inserted into the dovetail groove (3), and a first locking structure (5) between the brake pad support (1) and the brake pad (2) to maintain their relative positions; or, The connection structure includes multiple connecting protrusions (6) on both sides of the front of the brake pad support (1), multiple guide sleeves (7) correspondingly disposed on both sides of the brake pad (2) and squeezed and fitted onto the multiple connecting protrusions (6), and a second locking structure (8) disposed between the brake pad support (1) and the brake pad (2) to keep their relative positions fixed.

2. The brake pad support structure according to claim 1, characterized in that: One end of the dovetail groove (3) is a closed end, and the other end is an open insertion end. The first locking structure (5) is disposed at the insertion end to restrict the dovetail block (4) from disengaging from the dovetail groove (3).

3. The brake pad support structure according to claim 2, characterized in that: The first locking structure (5) includes a positioning groove (53) disposed at one end of the brake pad support (1) and a stop block (51) connected in the positioning groove (53) via a first positioning shaft (52). The stop block (51) abuts against the insertion end position of the dovetail groove (3) and forms a limiting fit with the dovetail block (4).

4. A brake pad support structure according to claim 3, characterized in that: The brake pad support (1) includes two positioning plates (54) disposed on both sides of the positioning groove (53). The two positioning plates (54) and the stop block (51) are respectively provided with shaft holes through which the first positioning shaft (52) can pass. One end of the first positioning shaft (52) passing through the positioning plate (54) is provided with an elastic limiting pin (9) in the radial direction.

5. A brake pad support structure according to any one of claims 1-4, characterized in that: Multiple connecting protrusions (6) are multiple guide protrusions formed along the outline edge of the brake pad support (1) on both sides of the front side of the brake pad support (1).

6. A brake pad support structure according to claim 5, characterized in that: Multiple guide sleeves (7) are bent and formed on both sides of the brake plate (2), and the guide sleeves (7) and the brake plate (2) form a insertion groove suitable for fitting into the connecting protrusion (6).

7. A brake pad support structure according to claim 5, characterized in that: The brake pad support (1) has two connecting protrusions (6) on both sides of its front side, and the brake pad support (1) includes a rib structure (11) connecting the two connecting protrusions (6) on the same side.

8. A brake pad support structure according to claim 1, characterized in that: The second locking structure (8) includes a positioning sleeve (81) disposed at the other end of the brake plate support (1) and a second positioning shaft (82) passing between the brake plate (2) and the positioning sleeve (81). The positioning sleeve (81) has a positioning hole (83) for connecting and accommodating the second positioning shaft (82).

9. A brake pad support structure according to claim 8, characterized in that: The positioning sleeve (81) has a radial hole on its side wall that connects to the positioning hole (83) in the radial direction, and an elastic limiting pin (9) that connects to the second positioning shaft (82) is provided in the radial hole.

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