Caliper disc brake for large engineering machinery
Through the linear motion structure of the spiral block and the overall floating design, the insufficient heat dissipation and inconvenience of maintenance of the clamp disc brakes in large construction machinery are solved, and the braking torque is increased and safety is improved. It is suitable for many loader models.
Patent Information
- Application Number
- CN202422069545.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Traditional clamp disc brakes lack heat dissipation, poor thermal stability in large construction machinery, and are inconvenient for maintenance and adjustment of the gap between the brake pad and the brake disc.
The linear motion structure of the steel ball is driven by a spiral block rotation, combined with the overall floating design and self-lubricating pad, to achieve a small friction coefficient, short stroke, increase the braking torque, and adjust the gap between the brake pad and the brake disc by adjusting the bolts, using national standard ductile iron and asbestos-free materials.
It improves the force enhancement multiple and safety factor of the brake, has stable and reliable performance, low failure rate, and is easy to operate and repair. It is suitable for many loader models.
Smart Images
Figure CN223152603U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of caliper disc brakes, and particularly relates to a caliper disc brake for large construction machinery. Background Technique
[0002] Traditional caliper disc brakes are widely used in large construction machinery. However, in the face of high-intensity and continuous braking working conditions, there are often problems such as insufficient heat dissipation and poor thermal stability. For fixed caliper disc brakes, due to the complex structure and uneven distribution of hydraulic cylinders, the heat load is concentrated, the brake fluid is easily vaporized by heat, affecting the braking performance. Although floating caliper disc brakes have been improved, heat dissipation and stability still need to be further optimized under specific working conditions.
[0003] The existing caliper disc brakes are inconvenient to operate during use, not convenient for maintenance, and not convenient for adjusting the gap between the brake pads and the brake disc. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a caliper disc brake for large construction machinery to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A caliper disc brake for large construction machinery, including a fixing plate, a transition plate is arranged below the fixing plate, a bracket is arranged on the front end surface of the transition plate, the transition plate and the bracket are connected by a fixing shaft, a first friction plate is arranged below the bracket, a second friction plate is arranged below the first friction plate, a push plate is arranged below the first friction plate, the second friction plate is arranged inside the push plate, the first friction plate and the second friction plate cooperate with each other, a support is arranged on the outer surface of the first friction plate, a main propulsion sleeve passes through the inside of the support, a limiting shaft is arranged inside the main propulsion sleeve, the limiting shaft moves along the main propulsion sleeve, and steel balls are arranged between the main propulsion sleeve and the support.
[0006] As a preferred technical scheme of the utility model, a sleeve and a limiting bolt are arranged on the outer surface of the support, a self-lubricating pad is arranged on the outer surface of the push plate, and a spring is arranged on the outer surface of the self-lubricating pad.
[0007] As a preferred technical scheme of the utility model, a nut is arranged below the main propulsion sleeve, a washer is arranged at the connection of the main propulsion sleeve and the nut, and a second bolt is arranged below the nut.
[0008] As a preferred technical scheme of the utility model, a first bolt is arranged below the fixing shaft.
[0009] As a preferred technical solution of the present utility model, a pull handle is sleeved on the outer surface of the main propulsion sleeve. The front end of the spring is hung on the pull handle and cooperates with the pull handle. Positioning springs are arranged on both the upper and lower sides of the pull handle.
[0010] As a preferred technical solution of the present utility model, a first washer is arranged on the rear end face of the positioning spring, and a non-metallic insert nut is arranged in front of the first washer.
[0011] Compared with the prior art, the present utility model provides a caliper disc brake for large construction machinery, having the following beneficial effects:
[0012] The utility model has a reasonable structural design, is convenient to use, can improve the force multiplication factor, increase the braking torque, improve the safety factor of the whole vehicle, and has stable and reliable performance, low failure rate, and is convenient for operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is Figure 1 a view in the A direction of
[0015] Figure 3 is a three-dimensional structural diagram of the present utility model.
[0016] In the figure: 1, bracket; 2, first friction plate; 3, second friction plate; 4, push plate; 5, self-lubricating pad; 6, spring; 7, main propulsion sleeve; 8, nut; 9, washer; 10, second bolt; 11, sleeve; 12, limit shaft; 13, steel ball; 14, support; 15, first bolt; 16, fixed shaft; 17, transition plate; 18, positioning spring; 19, first washer; 20, non-metallic insert nut; 21, limit bolt; 22, pull handle; 23, fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Embodiment
[0019] Please refer to Figures 1-3, the present utility model provides the following technical solutions: A disc brake for large construction machinery, including a fixing plate 23, a transition plate 17 is arranged below the fixing plate 23, a bracket 1 is arranged on the front end face of the transition plate 17, the transition plate 17 and the bracket 1 are connected by a fixing shaft 16, a first friction plate 2 is arranged below the bracket 1, a second friction plate 3 is arranged below the first friction plate 2, a push plate 4 is arranged below the first friction plate 2, the second friction plate 3 is arranged inside the push plate 4, the first friction plate 2 and the second friction plate 3 cooperate with each other, a support 14 is arranged on the outer surface of the first friction plate 2, a main propulsion sleeve 7 passes through the inside of the support 14, a limiting shaft 12 is arranged inside the main propulsion sleeve 7, the limiting shaft 12 moves along the main propulsion sleeve 7, and steel balls 13 are arranged between the main propulsion sleeve 7 and the support 14.
[0020] Specifically, a sleeve 11 and a limiting bolt 21 are arranged on the outer surface of the support 14, a self-lubricating pad 5 is arranged on the outer surface of the push plate 4, and a spring 6 is arranged on the outer surface of the self-lubricating pad 5.
[0021] Specifically, a nut 8 is arranged below the main propulsion sleeve 7, a washer 9 is arranged at the connection of the main propulsion sleeve 7 and the nut 8, and a second bolt 10 is arranged below the nut 8.
[0022] Specifically, a first bolt 15 is arranged below the fixing shaft 16.
[0023] Specifically, a pull handle 22 is sleeved on the outer surface of the main propulsion sleeve 7, the front end of the spring 6 is hung on the pull handle 22 and cooperates with the pull handle 22, and positioning springs 18 are arranged on both the upper and lower sides of the pull handle 22.
[0024] Specifically, a first washer 19 is arranged on the rear end face of the positioning spring 18, and a non-metallic insert nut 20 is arranged in front of the first washer 19.
[0025] The main features of this implementation scheme are as follows: 1. Adopt a structure of a spiral press block rotating to push the linear movement of the steel balls 13, with a small friction coefficient, short stroke, shortening the pull handle stroke and corresponding time; 2. The force multiplication multiple is large, and the braking torque reaches 2200 NM; 3. Adopt an overall floating structure to ensure left-right balance, automatically adjust the left-right symmetry of the brake pads and the brake disc, avoid uneven wear of the brake pads, and the brake can slide slightly left and right along the fixed shaft; 4. Increase the area of the brake pads, the single-piece contact area is 5000 square millimeters, reducing the specific pressure borne by the brake pads; 5. The main body of the brake remains unchanged, and by changing the fixing plate, it can be applied to different models and meet the installation requirements of multiple loaders; 6. Adjusting the second bolt 10 can adjust the gap between the brake pads and the brake disc; 7. This product is made of national standard ductile iron and steel, and the brake pads are made of non-asbestos materials, which are energy-saving and environmentally friendly.
[0026] Working principle and usage process of the present utility model: When using this device, the pull handle 22 drives the main propulsion sleeve 7 to rotate at an angle, and the steel ball 13 spirally pushes it to move linearly, pushing the push plate 4 and the first friction plate 3 to press the brake disc. When using this device, the main propulsion sleeve 7 can be lubricated through the self-lubricating pad 5, so as to facilitate the movement of the main propulsion sleeve 7 along the support 14, making the use of this device more convenient. The second washer 9 is used to protect the surface of the main propulsion sleeve 7 from being scratched by the nut 8 and disperse the pressure of the nut 8 on the main propulsion sleeve 7. The structure of the present utility model is simple and compact, which can increase the force multiplication factor, increase the braking torque, improve the safety factor of the whole vehicle, and has stable and reliable performance, low failure rate, and is convenient for operation and maintenance.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A disc brake for large construction machinery, comprising a fixing plate (23), characterized in that: A transition plate (17) is provided below the fixed plate (23). A bracket (1) is provided on the front end face of the transition plate (17). The transition plate (17) is connected to the bracket (1) by a fixed shaft (16). A first friction plate (2) is provided below the bracket (1). A second friction plate (3) is provided below the first friction plate (2). A push plate (4) is provided below the first friction plate (2). The second friction plate (3) is provided inside the push plate (4). The first friction plate (2) cooperates with the second friction plate (3). A support (14) is provided on the outer surface of the first friction plate (2). A main propulsion sleeve (7) passes through the inside of the support (14). A limit shaft (12) is provided inside the main propulsion sleeve (7). The limit shaft (12) moves along the main propulsion sleeve (7). Steel balls (13) are provided between the main propulsion sleeve (7) and the support (14).
2. The disc brake for large construction machinery according to claim 1, characterized in that: A sleeve (11) and a limit bolt (21) are provided on the outer surface of the support (14). A self-lubricating pad (5) is provided on the outer surface of the push plate (4). A spring (6) is provided on the outer surface of the self-lubricating pad (5).
3. The disc brake for large construction machinery according to claim 2, wherein: A nut (8) is provided below the main propulsion sleeve (7). A washer (9) is provided at the connection between the main propulsion sleeve (7) and the nut (8). A second bolt (10) is provided below the nut (8).
4. A disc brake for large construction machinery according to claim 3, characterized in that: A first bolt (15) is provided below the fixed shaft (16).
5. The disc brake for large construction machinery according to claim 4, characterized in that: A pull handle (22) is sleeved on the outer surface of the main propulsion sleeve (7). The front end of the spring (6) is hung on the pull handle (22) and cooperates with the pull handle (22). Positioning springs (18) are provided on both the upper and lower sides of the pull handle (22).
6. The disk brake for large construction machinery according to claim 5, characterized in that: A first washer (19) is provided on the rear end face of the positioning spring (18). A non-metallic insert nut (20) is provided in front of the first washer (19).