Drum type brake shoe assembly structure with reinforcing rib assembly

Abstract

The utility model discloses a drum-type brake shoe assembly structure with a reinforcing rib assembly, and relates to the technical field of drum-type brake shoes. Comprising an installation base, the installation base is provided with an installation mechanism used for the drum type brake shoe, the installation mechanism comprises the structure that in the braking process, friction between a brake shoe and a brake drum can generate large resistance, the resistance can be transmitted to a brake shoe base and a shoe block, at the moment, a first reinforcing rib is located at the inner side connecting position of the brake shoe base and the shoe block, and therefore the brake shoe base and the brake drum block are connected. The brake shoe base and the brake shoe can effectively disperse and transfer resistance, stress concentration and deformation at the connecting position of the brake shoe base and the brake shoe are prevented, meanwhile, the reinforcing blocks of the triangular structure and the second reinforcing ribs on the edges of the reinforcing blocks further enhance the overall rigidity of the brake shoe base and the brake shoe, and when stressed, the reinforcing blocks and the second reinforcing ribs act jointly, so that the brake shoe base and the brake shoe are more stable. Force is evenly distributed on the whole brake shoe structure, damage caused by too large local stress is avoided, and the structural strength and stability of the brake shoe assembly are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of drum brake shoe technology, specifically to a drum brake shoe assembly structure with reinforcing ribs. Background Technology

[0002] Drum brake systems are widely used in various motor vehicles due to their advantages such as low cost and high braking torque. A traditional drum brake shoe assembly typically consists of a brake shoe seat, brake shoes, and friction linings.

[0003] During frequent braking, the friction between the brake pads and the brake drum generates enormous stress. Especially under emergency braking or heavy load conditions, the connection between the brake pad seat and the pad block is prone to deformation or even breakage due to stress concentration. The structure has low strength when subjected to radial pressure, and the friction lining lacks limiting structures at both ends after installation. Under high-frequency vibration, the lining is prone to displacement. Therefore, this utility model provides a drum brake shoe assembly structure with reinforcing ribs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drum brake shoe assembly structure with reinforcing ribs. This solves the problems of high stress generated by friction between the brake shoes and the brake drum during frequent braking, especially under emergency braking or heavy load conditions. The connection between the brake shoe seat and the shoe block is prone to deformation or even breakage due to stress concentration. The structure has low strength when subjected to radial pressure, and the lack of limiting structures at both ends of the friction lining after installation makes it easy for the lining to shift under high-frequency vibration.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drum brake shoe assembly structure with reinforcing ribs, including a mounting base, wherein the mounting base is provided with a mounting mechanism for the drum brake shoe, the mounting mechanism comprising:

[0006] The reinforcing component includes a brake drum disposed on the rear side of a mounting base, a brake shoe seat disposed on the top of the mounting base and connected by a movable component, a brake shoe fixed at the edge of the brake shoe seat, a shoe block fixed at the inner center of the brake shoe, a first reinforcing rib fixed at the inner connection between the brake shoe seat and the shoe block, a reinforcing block with a triangular structure fixed on the inner wall of the brake shoe seat, and a second reinforcing rib fixed at the edge of the reinforcing block.

[0007] The mounting assembly includes a friction lining that fits against the outer wall of the brake shoe, with limit plates provided at the upper and lower ends of the friction lining, and first openings uniformly formed inside the friction lining.

[0008] Preferably, one side wall of the triangular reinforcing block is fixedly connected to the inner side wall of the brake shoe, and the second reinforcing rib is fixedly connected to the brake shoe seat.

[0009] Preferably, the brake pads and the pad block have uniformly formed second openings for heat dissipation inside, and the pad block is located at the center of the brake pads so that the thickness of the pads decreases from the center to both ends.

[0010] Preferably, the friction lining is fitted to the limiting plate, and the limiting plate is fixedly connected to the brake shoe seat. The brake shoe seat is provided with bolts for fixing the friction lining on its inner side.

[0011] Preferably, the movable component includes a mounting block fixed to the upper end of the mounting base, a pair of movable shafts rotatably connected through the interior of the mounting block, a brake shoe seat fixedly connected to the outer wall of the movable shaft, two sets of brake shoe seats symmetrically distributed about the mounting block, and a return spring provided at the lower end of the brake shoe seat.

[0012] Preferably, a brake shaft is rotatably connected to the lower end of the mounting base, and a compression ring block is fixed to one side of the lower end of the brake shoe seat. An annular groove is provided on the outer side of the compression ring block, and a sliding shaft that fits into the annular groove is provided at the lower end of the brake shoe seat. The sliding shaft is rotatably connected to the brake shoe seat.

[0013] Beneficial effects

[0014] This utility model provides a drum brake shoe assembly structure with reinforcing ribs. Compared with the prior art, it has the following advantages:

[0015] Firstly, during braking, the friction between the brake pads and the brake drum generates significant resistance, which is transmitted to the brake shoe seat and the brake pad block. At this point, the first reinforcing rib, located at the inner connection between the brake shoe seat and the brake pad block, effectively disperses and transmits the resistance, preventing stress concentration and deformation at the connection point. Simultaneously, the triangular reinforcing block and its edge, with one side wall fixedly connected to the inner wall of the brake pad and the second reinforcing rib fixedly connected to the brake shoe seat, further enhance the overall rigidity of the brake shoe seat and brake pad. Under stress, the reinforcing block and the second reinforcing rib work together to evenly distribute the force across the entire brake shoe structure, preventing damage caused by excessive local stress, enhancing the structural strength and stability of the brake shoe assembly, improving its ability to withstand greater friction and pressure during braking, and ensuring the reliable operation of the braking system.

[0016] Secondly, the friction between the brake pads and the brake drum generates a large amount of heat, which raises the temperature of the brake pads and pad blocks. At this time, the second openings evenly distributed inside the brake pads and pad blocks come into play. Air can flow through these openings inside the brake pads and pad blocks, carrying away some of the heat and achieving heat dissipation. Lowering the temperature helps reduce the thermal deformation of the brake pads and related components, ensuring proper fit between the brake pads and the brake drum, and extending the service life of the components. In addition, the design of the pad blocks being located at the center of the brake pads, with the thickness decreasing from the center to both ends, increases the contact area between the brake pads and the air, which is conducive to heat dissipation and further improves heat dissipation efficiency. Increasing the thickness at the center of the brake pads through the pad blocks, as well as the structural strength and the design of decreasing thickness from both ends, can also reduce the weight of the structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the friction liner mounting structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of the brake shoe seat of this utility model;

[0020] Figure 4 This is a schematic diagram of the extrusion ring block connection structure of this utility model.

[0021] In the diagram: 1. Mounting base; 2. Mounting block; 201. Movable shaft; 202. Brake shoe seat; 3. Limiting plate; 301. Bolt; 4. Friction lining; 401. First opening; 5. First reinforcing rib; 6. Reinforcing block; 601. Second reinforcing rib; 7. Brake shoe; 701. Shoe block; 702. Second opening; 8. Sliding shaft; 801. Brake shaft; 802. Compression ring block; 803. Ring groove; 804. Return spring; 9. Brake drum. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a drum brake shoe assembly structure with reinforcing ribs, including a mounting base 1, on which a mounting mechanism for the drum brake shoe is provided, the mounting mechanism including:

[0024] The reinforcing component includes a brake drum 9 disposed on the rear side of the mounting base 1, a brake shoe seat 202 disposed on the top of the mounting base 1 and connected by a movable component, a brake shoe 7 fixed at the edge of the brake shoe seat 202, a shoe block 701 fixed at the inner center of the brake shoe 7, a first reinforcing rib 5 fixed at the inner connection between the brake shoe seat 202 and the shoe block 701, a reinforcing block 6 with a triangular structure fixed on the inner wall of the brake shoe seat 202, and a second reinforcing rib 601 fixed at the edge of the reinforcing block 6.

[0025] The mounting components include a friction lining 4 that fits against the outer wall of the brake shoe 7, with limit plates 3 provided at the upper and lower ends of the friction lining 4, and first openings 401 evenly provided inside the friction lining 4.

[0026] In a preferred embodiment, one side wall of the triangular reinforcing block 6 is fixedly connected to the inner side wall of the brake shoe 7, and the second reinforcing rib 601 is fixedly connected to the brake shoe seat 202. The brake shoe 7 and the shoe block 701 have uniformly distributed second openings 702 for heat dissipation. The shoe block 701 is located at the center of the brake shoe 7, causing the thickness of the shoe to decrease towards both ends. During braking, the friction between the brake shoe 7 and the brake drum 9 generates significant resistance, which is transmitted to the brake shoe seat 202 and the shoe block 701. At this time, the first reinforcing rib 5, located at the inner connection between the brake shoe seat 202 and the shoe block 701, can effectively disperse and transmit the resistance. To prevent stress concentration and deformation at the connection point, the triangular reinforcing block 6 and its edge second reinforcing rib 601 are fixedly connected. One side wall of the reinforcing block 6 is fixedly connected to the inner side wall of the brake shoe 7, and the second reinforcing rib 601 is fixedly connected to the brake shoe seat 202. This further enhances the overall rigidity of the brake shoe seat 202 and the brake shoe 7. When under stress, the reinforcing block 6 and the second reinforcing rib 601 work together to distribute the force evenly across the entire brake shoe structure, avoiding damage caused by excessive local stress. This enhances the structural strength and stability of the brake shoe assembly, improves its ability to withstand greater friction and pressure during braking, and ensures the reliable operation of the braking system.

[0027] The installation of the first reinforcing rib 5, the reinforcing block 6, and the second reinforcing rib 601 significantly improves the strength of the connection between the brake shoe seat 202, the brake shoe 7, and the shoe block 701, as well as the overall structure. It reduces deformation during braking, makes the contact between the brake shoe and the brake drum 9 more uniform, improves braking efficiency and stability, avoids component damage caused by stress concentration, extends the service life of the brake shoe assembly, and reduces vehicle maintenance costs.

[0028] During braking, the friction between the brake pads 7 and the brake drum 9 generates a large amount of heat, which raises the temperature of the brake pads 7 and the pad block 701. At this time, the second openings 702 evenly distributed inside the brake pads 7 and the pad block 701 come into play. Air can flow through these openings inside the brake pads 7 and the pad block 701, carrying away some of the heat and achieving heat dissipation. Lowering the temperature helps reduce the thermal deformation of the brake pads 7 and related components, ensuring proper fit between the brake shoes and the brake drum 9, and extending the service life of the components. In addition, the design of the pad block 701 located at the center of the brake pads 7, with the thickness decreasing from the center to both ends, increases the contact area between the brake pads 7 and the air, which is conducive to heat dissipation and further improves heat dissipation efficiency. By increasing the thickness at the center of the brake pads 7 through the pad block 701, the structural strength and the design of decreasing thickness from both ends can also reduce the weight of the structure.

[0029] In a preferred embodiment, the friction lining 4 is fitted to the limiting plate 3, and the limiting plate 3 is fixedly connected to the brake shoe seat 202. The brake shoe seat 202 is provided with bolts 301 for fixing the friction lining 4. When installing the friction lining 4, the friction lining 4 is first fitted to the outer wall of the brake shoe 7. Then, the limiting plate 3 is used to limit the upper and lower ends of the friction lining 4 to keep it in the correct position. Then, the friction lining 4 and the limiting plate 3 are fixed to the brake shoe seat 202 by the bolts 301 provided on the inner side of the brake shoe seat 202, ensuring that the friction lining 4 and the brake shoe 7 are tightly fitted and firmly fixed. During braking, the friction lining 4 comes into contact with the brake drum 9 to generate friction. The limiting plate 3 and bolt 301 ensure that the friction lining 4 will not be displaced or loosened, and always maintain a good working condition. The installation method facilitates the replacement and maintenance of the friction lining 4. When the friction lining 4 is worn to a certain extent, only the bolt 301 and the limiting plate 3 need to be removed to quickly replace the new friction lining 4, reducing maintenance difficulty and cost. The first opening 401 evenly opened inside the friction lining 4, while ensuring the strength of the friction lining 4, helps to reduce its weight, reduce vehicle energy consumption, and can also assist in heat dissipation to a certain extent.

[0030] In a preferred embodiment, the movable component includes a mounting block 2 fixed to the upper end of a mounting base 1. A pair of movable shafts 201 are rotatably connected through the interior of the mounting block 2. Brake shoe seats 202 are fixedly connected to the outer wall of the movable shafts 201. Two sets of brake shoe seats 202 are provided, symmetrically distributed about the mounting block 2. A return spring 804 is provided at the lower end of the brake shoe seat 202. A brake shaft 801 is rotatably connected through the lower end of the mounting base 1, and the brake shaft 801 extends... A compression ring block 802 is fixed to one side of the lower end of the brake shoe seat 202. An annular groove 803 is formed on the outer side of the compression ring block 802. A sliding shaft 8, which fits into the annular groove 803, is provided at the lower end of the brake shoe seat 202. The sliding shaft 8 is rotatably connected to the brake shoe seat 202. When the vehicle needs to brake, the brake shaft 801 rotates under the action of the braking system, causing the compression ring block 802 to rotate together. The annular groove 803 on the outer side of the compression ring block 802 cooperates with the sliding shaft 8 at the lower end of the brake shoe seat 202. As the compression ring 802 rotates, the ring groove 803 pushes the sliding shaft 8, causing the brake shoe seat 202 to rotate around the movable shaft 201. Since the brake shoe 7 is fixed to the edge of the brake shoe seat 202, the rotation of the brake shoe seat 202 drives the brake shoe 7 to move towards the brake drum 9. Finally, the friction lining 4 on the brake shoe 7 comes into close contact with the inner wall of the brake drum 9, generating friction and reducing the rotational speed of the brake drum 9, thereby slowing down or stopping the vehicle. After braking, the return spring 804 takes effect, pulling the brake shoe seat 202 back to its initial position, separating the brake shoe 7 from the brake drum 9. The setting of the return spring 804 ensures that the brake shoe 7 can return to its original position in time after braking, avoiding unnecessary friction between the brake shoe 7 and the brake drum 9, reducing wear, and extending the service life of the components. The cooperation structure between the compression ring 802 and the sliding shaft 8 makes the transmission of braking force more stable and efficient, effectively converting the rotation of the brake shaft 801 into the oscillation of the brake shoe seat 202, thus improving the braking effect.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] During operation, when the vehicle needs to brake, the brake shaft 801 rotates under the action of the braking system, causing the compression ring block 802 to rotate as well. The annular groove 803 on the outer side of the compression ring block 802 cooperates with the sliding shaft 8 at the lower end of the brake shoe seat 202. As the compression ring block 802 rotates, the annular groove 803 pushes the sliding shaft 8, causing the brake shoe seat 202 to rotate around the movable shaft 201. Since the brake shoe 7 is fixed to the edge of the brake shoe seat 202, the rotation of the brake shoe seat 202 causes the brake shoe 7 to move towards the brake drum 9. Finally, the friction lining 4 attached to the brake shoe 7 comes into close contact with the inner wall of the brake drum 9, generating friction. The friction force reduces the rotational speed of the brake drum 9, thereby slowing down or stopping the vehicle. After braking, the return spring 804 pulls the brake shoe seat 202 back to its initial position, separating the brake shoe 7 from the brake drum 9. The return spring 804 ensures that the brake shoe 7 can return to its original position in time after braking, avoiding unnecessary friction between the brake shoe 7 and the brake drum 9, reducing wear, and extending the service life of the components. The fit between the compression ring block 802 and the sliding shaft 8 makes the transmission of braking force more stable and efficient, effectively converting the rotation of the brake shaft 801 into the oscillation of the brake shoe seat 202, thus improving the braking effect.

[0033] Then, the friction between the brake shoe 7 and the brake drum 9 will generate a large resistance, which will be transmitted to the brake shoe seat 202 and the shoe block 701. At this time, the first reinforcing rib 5 at the inner connection between the brake shoe seat 202 and the shoe block 701 can effectively disperse and transmit the resistance, preventing stress concentration and deformation at the connection. At the same time, the triangular reinforcing block 6 and the second reinforcing rib 601 on its edge, with one side wall of the reinforcing block 6 fixedly connected to the inner side wall of the brake shoe 7 and the second reinforcing rib 601 fixedly connected to the brake shoe seat 202, further enhance the overall rigidity of the brake shoe seat 202 and the brake shoe 7. When under force, the reinforcing block 6 and the second reinforcing rib 601 work together to distribute the force evenly to the entire brake shoe structure, avoiding damage caused by excessive local force.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drum brake shoe assembly structure with a reinforcing rib assembly, comprising a mounting base (1), characterized in that: The installation base (1) is provided with an installation mechanism for the drum brake shoe, which comprises: The reinforcing assembly comprises a brake drum (9) arranged on the rear side of the installation base (1), a brake shoe seat (202) arranged on the top end of the installation base (1) and connected by a movable assembly, a brake shoe piece (7) fixed at the edge of the brake shoe seat (202), a shoe piece block (701) fixed at the inner side center of the brake shoe piece (7), a first reinforcing rib (5) fixed at the inner side connection of the brake shoe seat (202) and the shoe piece block (701), and a reinforcing block (6) in a triangular structure fixed on the inner wall of the brake shoe seat (202), wherein the edge of the reinforcing block (6) is fixed with a second reinforcing rib (601). The installation assembly comprises a friction lining (4) attached to the outer wall of the brake shoe piece (7), and the upper and lower ends of the friction lining (4) are provided with limiting plates (3), and the inner part of the friction lining (4) is uniformly provided with first openings (401).

2. The drum brake shoe assembly structure with a reinforcing rib assembly according to claim 1, characterized in that: One side wall of the reinforcing block (6) in a triangular structure is fixedly connected with the inner wall of the brake shoe piece (7), and the second reinforcing rib (601) is fixedly connected with the brake shoe seat (202).

3. The drum brake shoe assembly structure with reinforcement rib assembly according to claim 1, characterized in that: The inner part of the brake shoe piece (7) and the shoe piece block (701) is uniformly provided with second openings (702) for heat dissipation, and the shoe piece block (701) is located at the center of the brake shoe piece (7) to make the thickness of the shoe piece center decrease towards both ends.

4. The drum brake shoe assembly structure with reinforcement rib assembly of claim 1, wherein: The friction lining (4) is attached to the limiting plate (3), and the limiting plate (3) is fixedly connected with the brake shoe seat (202), and the inner side of the brake shoe seat (202) is provided with a bolt (301) for fixing the friction lining (4).

5. The drum brake shoe assembly structure with reinforcement rib assembly of claim 1, wherein: The movable assembly comprises an installation block (2) fixed on the upper end of the installation base (1), a pair of movable shafts (201) rotatably connected in the inner part of the installation block (2), the brake shoe seat (202) is fixedly connected with the outer wall of the movable shaft (201), the brake shoe seat (202) is arranged in two groups, the two groups of brake shoe seats (202) are symmetrically distributed about the installation block (2), and the brake shoe seat (202) is provided with a return spring (804) at the lower end.

6. The drum brake shoe assembly structure with reinforcement rib assembly of claim 1, wherein: The lower end of the installation base (1) is rotatably connected with a brake shaft (801), the brake shaft (801) extends to the lower end of the brake shoe seat (202) and is fixed with a pressing ring block (802) on one side, the outer side of the pressing ring block (802) is provided with a ring groove (803), the lower end of the brake shoe seat (202) is provided with a sliding shaft (8) attached to the ring groove (803), and the sliding shaft (8) is rotatably connected with the brake shoe seat (202).

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