Brake shoe assembly and wedge brake

Abstract

The invention relates to the technical field of automobile brakes, and particularly discloses a brake shoe assembly and a wedge brake. The brake shoe assembly comprises a shoe plate, a first web plate, a second web plate, a supporting block and a reinforcing support, and the first web plate and the second web plate are arranged on the inner side face of the shoe plate in a spaced mode; the supporting block is fixedly connected to the first web and the second web at the same time, the reinforcing support is fixedly connected between the first web and the second web, and the reinforcing support supports and abuts against the inner side face of the shoe plate. According to the arrangement, the reinforcing support is introduced between the first web and the second web and abuts against the inner side face of the shoe plate at the same time, so that the reinforcing rib effect is formed, bending deformation is reduced, local overload is avoided, stress is dispersed, high-frequency vibration is absorbed, and the overall rigidity and force transmission efficiency of the brake shoe assembly are improved; gap enlargement caused by weak rigidity between the first web plate and the second web plate is effectively reduced, abrasion and damage caused by shaking of the shoe plate are reduced, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile brakes, in particular to a brake shoe assembly and a wedge brake. Background Art

[0002] Brakes are essential components that provide braking force during vehicle braking, and the brake shoe is a key component. Existing brake shoes typically consist of an arc-shaped shoe plate and a curved backing plate mounted on the rear end of the shoe plate. A friction pad is fixed to the curved backing plate. During use, the brake drum and brake shoe rub against each other, utilizing frictional resistance to decelerate or brake the vehicle. As brakes move toward lightweight design, wedge brakes have gained widespread adoption due to their compact structure, low cost, and ability to meet the braking efficiency and torque requirements of heavy-duty vehicles.

[0003] However, the existing lightweight wedge brake structure has poor brake shoe stiffness. The insufficient stiffness between the two webs causes the distance between the two webs to expand, which increases the shaking of the shoe, resulting in collision or wear of the wedge block and causing it to fail, affecting its performance to a certain extent and reducing its service life.

[0004] Therefore, there is an urgent need for a brake shoe assembly and a wedge brake to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a brake shoe assembly and a wedge brake, which can improve the overall rigidity of the brake shoe and extend its service life.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] On the one hand, the present invention provides a brake shoe assembly, including a shoe plate, a first web, a second web and a support block, wherein the first web and the second web are spaced apart and arranged on the inner side surface of the shoe plate, and the support block is fixedly connected to the first web and the second web at the same time. The brake shoe assembly also includes a reinforcing bracket, which is fixedly connected between the first web and the second web, and the reinforcing bracket supports and abuts against the inner side surface of the shoe plate.

[0008] As a preferred technical solution of the above-mentioned brake shoe assembly, the reinforcing bracket includes a supporting beam, a first connecting beam and a second connecting beam. The supporting beam supports and abuts against the inner side surface of the shoe plate. The first connecting beam and the second connecting beam are respectively fixedly connected to the two ends of the supporting beam along its own length direction. The first connecting beam is fixedly connected to the first web, and the second connecting beam is fixedly connected to the second web.

[0009] As a preferred technical solution of the above brake shoe assembly, the reinforcement bracket is U-shaped or I-shaped.

[0010] As a preferred technical solution of the above brake shoe assembly, the first connecting beam is welded to the first web, and the second connecting beam is welded to the second web.

[0011] As a preferred technical solution of the above brake shoe assembly, the first connecting beam and the first web are made of the same material, and the second connecting beam and the second web are made of the same material.

[0012] As a preferred technical solution of the above-mentioned brake shoe assembly, the reinforcing bracket is made of high-strength material.

[0013] On the other hand, the present invention also provides a wedge brake, comprising a wedge assembly, a brake drum, and the brake shoe assembly of any of the above schemes, wherein the brake drum is connected to the wheel, and the wedge assembly is configured to push the shoe to expand outward so that the shoe is in frictional contact with the brake drum.

[0014] As a preferred technical solution of the above-mentioned wedge brake, the number of the brake shoe assemblies is two, the wedge assembly is arranged between the two brake shoe assemblies, and the wedge assembly includes a wedge body, the wedge body has a first output end and a second output end, and the first output end and the second output end are respectively arranged corresponding to the two brake shoe assemblies.

[0015] As a preferred technical solution of the above-mentioned wedge brake, the wedge block assembly also includes a first locking plate, which is arranged at the first output end, and the first locking plate has two first protrusions, and one of the support blocks is arranged between the two first protrusions.

[0016] As a preferred technical solution of the above-mentioned wedge brake, the wedge block assembly also includes a second locking plate, which is arranged at the second output end, and the second locking plate has two second protrusions, wherein the other support block is arranged between the two second protrusions.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides a brake shoe assembly and a wedge brake, the brake shoe assembly comprising: a shoe plate, a first web plate, a second web plate, a support block and a reinforcement bracket, wherein the first web plate and the second web plate are spaced apart and arranged on the inner side surface of the shoe plate, the support block is fixedly connected to the first web plate and the second web plate at the same time, and the reinforcement bracket is fixedly connected between the first web plate and the second web plate, and the reinforcement bracket supports and abuts the inner side surface of the shoe plate. In this arrangement, the reinforcement bracket is introduced between the first web plate and the second web plate and abuts the inner side surface of the shoe plate at the same time, thereby forming a "reinforcement rib" effect, significantly reducing bending deformation, avoiding local overload, dispersing stress, and absorbing high-frequency vibration, thereby improving the overall rigidity and force transmission efficiency of the brake shoe assembly, effectively reducing the gap enlargement caused by weak rigidity between the first web plate and the second web plate, reducing wear and damage caused by shoe plate shaking, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of the brake shoe assembly provided by the present invention;

[0020] Figure 2 A schematic structural diagram of the reinforcement bracket provided by the present invention;

[0021] Figure 3 A schematic structural diagram of the wedge brake provided by the present invention;

[0022] Figure 4 This is a schematic structural diagram of the wedge assembly provided by the present invention.

[0023] in:

[0024] 1. Shoe plate; 2. First web plate; 3. Second web plate; 4. Support block;

[0025] 5. Reinforcement bracket; 51. Support beam; 52. First connecting beam; 53. Second connecting beam;

[0026] 6. Wedge body; 7. First raised portion; 8. Second raised portion. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0029] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0030] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] like Figures 1 to 4As shown, this embodiment provides a brake shoe assembly, which includes: a shoe plate 1, a first web 2, a second web 3, a support block 4, and a reinforcement bracket 5. The first web 2 and the second web 3 are spaced apart on the inner side of the shoe plate 1, the support block 4 is fixedly connected to both the first web 2 and the second web 3, and the reinforcement bracket 5 is fixedly connected between the first web 2 and the second web 3, and supports and abuts the inner side of the shoe plate 1. This arrangement introduces the reinforcement bracket 5 between the first web 2 and the second web 3 and simultaneously abuts the inner side of the shoe plate 1, thereby forming a "reinforcement rib" effect, significantly reducing bending deformation, avoiding local overload, dispersing stress, and absorbing high-frequency vibration. This improves the overall rigidity and force transmission efficiency of the brake shoe assembly, effectively reduces the gap enlargement between the first web 2 and the second web 3 due to weak rigidity, reduces wear and damage caused by the shaking of the shoe plate 1, and extends its service life. Furthermore, the shoe plate 1 is arc-shaped.

[0033] Optionally, the reinforcing bracket 5 includes a supporting crossbeam 51, a first connecting beam 52, and a second connecting beam 53. The supporting crossbeam 51 supports and abuts the inner side of the shoe plate 1. The first connecting beam 52 and the second connecting beam 53 are respectively fixedly connected to the supporting crossbeam 51 at both ends along its length. The first connecting beam 52 is fixedly connected to the first web 2, and the second connecting beam 53 is fixedly connected to the second web 3. Furthermore, the first connecting beam 52 is welded to the first web 2, and the second connecting beam 53 is welded to the second web 3. With this arrangement, the coordinated operation of multiple beams further absorbs vibration energy and ensures even load distribution, preventing structural imbalance caused by eccentric loading, reducing structural loosening under long-term dynamic loads, and significantly improving its vibration resistance and durability.

[0034] Optionally, the reinforcing bracket 5 is a U-shaped or I-shaped frame as a whole, and its rigidity is improved by combining multi-directional beams.

[0035] Optionally, to ensure welding compatibility, the first connecting beam 52 and the first web 2 are made of the same material, and the second connecting beam 53 and the second web 3 are made of the same material. Furthermore, the same material can be cast iron or stamped steel.

[0036] Optionally, the reinforcement bracket 5 is made of high-strength material. Further, in order to take into account both the lightweight and rigidity requirements of the reinforcement bracket 5, the reinforcement bracket 5 is made of high-strength steel (such as Q345) or ductile iron.

[0037] This embodiment also provides a wedge brake, including a wedge assembly, a brake drum, and the brake shoe assembly in the above scheme. The brake drum is connected to the wheel, and the wedge assembly is configured to push the shoe plate 1 to expand outward so that the shoe plate 1 is in friction contact with the brake drum.

[0038] Optionally, in order to further improve the performance of friction braking, the number of brake shoe assemblies is two, the wedge assembly is arranged between the two brake shoe assemblies, and the wedge assembly includes a wedge body 6, the wedge body 6 has a first output end and a second output end, and the first output end and the second output end are respectively arranged corresponding to the two brake shoe assemblies.

[0039] Optionally, in order to enhance the limiting function of the support block 4, the wedge block assembly further includes a first locking plate and a second locking plate, the first locking plate is arranged at the first output end, and the first locking plate has two first protrusions 7, wherein one support block 4 is arranged between the two first protrusions 7, and the second locking plate is arranged at the second output end, and the second locking plate has two second protrusions 8, wherein another support block 4 is arranged between the two second protrusions 8.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A brake shoe assembly, comprising a shoe (1), a first web (2), a second web (3) and a support block (4), wherein the first web (2) and the second web (3) are spaced apart and arranged on the inner side of the shoe (1), and the support block (4) is fixedly connected to the first web (2) and the second web (3) at the same time, characterized in that: The brake shoe assembly further comprises a reinforcing bracket (5), wherein the reinforcing bracket (5) is fixedly connected between the first web (2) and the second web (3), and the reinforcing bracket (5) supports and abuts against the inner side surface of the shoe (1).

2. The brake shoe assembly according to claim 1, characterized in that: The reinforcing bracket (5) comprises a supporting crossbeam (51), a first connecting beam (52) and a second connecting beam (53); the supporting crossbeam (51) supports and abuts against the inner side surface of the shoe plate (1); the first connecting beam (52) and the second connecting beam (53) are respectively fixedly connected to the two ends of the supporting crossbeam (51) along the length direction thereof; the first connecting beam (52) is fixedly connected to the first web (2); and the second connecting beam (53) is fixedly connected to the second web (3).

3. The brake shoe assembly according to claim 2, characterized in that: The reinforcing bracket (5) is U-shaped or I-shaped.

4. The brake shoe assembly according to claim 2, characterized in that: The first connecting beam (52) is welded to the first web (2), and the second connecting beam (53) is welded to the second web (3).

5. The brake shoe assembly according to claim 4, characterized in that: The first connecting beam (52) and the first web (2) are made of the same material, and the second connecting beam (53) and the second web (3) are made of the same material.

6. The brake shoe assembly according to any one of claims 1 to 5, characterized in that: The reinforcing bracket (5) is made of high-strength material.

7. A wedge brake, characterized in that: The invention comprises a wedge assembly, a brake drum, and a brake shoe assembly according to any one of claims 1 to 6, wherein the brake drum is connected to a wheel, and the wedge assembly is configured to push the shoe (1) to expand outward so that the shoe (1) is in frictional contact with the brake drum.

8. The wedge brake according to claim 7, characterized in that There are two brake shoe assemblies, the wedge assembly is arranged between the two brake shoe assemblies, and the wedge assembly includes a wedge body (6), the wedge body (6) has a first output end and a second output end, and the first output end and the second output end are respectively arranged corresponding to the two brake shoe assemblies.

9. The wedge brake according to claim 8, characterized in that The wedge block assembly further comprises a first locking plate, which is arranged at the first output end and has two first protrusions (7), wherein one of the support blocks (4) is arranged between the two first protrusions (7).

10. The wedge brake according to claim 9, characterized in that The wedge block assembly further comprises a second locking plate, which is arranged at the second output end and has two second protrusions (8), wherein the other support block (4) is arranged between the two second protrusions (8).

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