Novel multi-disc wet brake
Through the innovative design of multi-piece wet brakes, the use of nitrile rubber skeleton oil seal and oil-immersed wet friction plates, the noise and vibration problems of existing brakes at high loads and high speeds are solved, the stability and durability of the brakes are achieved, and the safety of construction machinery is improved.
Patent Information
- Application Number
- CN202422453637.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing brakes have high noise and obvious vibrations in high load and high speed working environments, and lack of stability, which may lead to damage to construction machinery and low safety.
It adopts a multi-piece wet brake structure, including a brake shell, brake shaft, frame oil seal, needle roller bearing, multiple sets of steel sheets and friction plates, and transmits braking force through hydraulic oil, combined with a nitrile rubber wrapped with stamped frame steel plate and an oil-immersed wet friction plate to achieve efficient sealing and braking torque transmission.
It achieves low noise, low vibration, long service life, maintenance-free, and can operate stably under high load and high speed, ensuring the safety and reliability of construction machinery.
Smart Images
Figure CN223062976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hydraulic transmission, and particularly relates to a new type of multi-disc wet brake. Background Art
[0002] A brake is a device that has functions such as decelerating, stopping, or maintaining a stopped state of a moving part (or moving machinery). It is a mechanical part that stops or decelerates a moving part in a machine.
[0003] During the working process of existing brakes, there are often problems of high noise and obvious vibration. Especially in a high-load and high-speed working environment, the stability is insufficient, which may even cause damage to construction machinery and the safety is relatively low.
[0004] Therefore, it is necessary to develop a new type of brake specifically to overcome the problems of the existing technology. Summary of the Utility Model
[0005] Purpose of the utility model: Aiming at the deficiencies and defects of the existing technology, the utility model provides a new type of multi-disc wet brake, which has the advantages of large braking torque, long service life, anti-fade and maintenance-free, simple structure, reliable performance, and good wear resistance and durability.
[0006] Technical solution: A new type of multi-disc wet brake of the utility model is characterized in that: it includes a brake housing, a brake shaft and a skeleton oil seal are arranged in the brake housing, the brake shaft is connected with a bearing, the brake shaft is connected with multiple groups of steel sheets and friction sheets, the steel sheets are connected with a piston, and the piston is connected with a spring through a gasket.
[0007] Among them, a needle roller bearing is arranged on the brake rear cover of the brake housing.
[0008] Among them, the needle roller bearing is installed in the main hole in the middle of the brake rear cover.
[0009] Among them, the skeleton oil seal adopts a skeleton oil seal with a nitrile rubber wrapped stamping skeleton steel plate.
[0010] Among them, the steel sheets and friction sheets adopt a connection structure of 6 groups of friction sheets plus 7 groups of steel sheets.
[0011] Among them, the friction sheet adopts an oil-immersed wet friction sheet.
[0012] Among them, the piston is closely attached to the steel sheet.
[0013] Among them, a sealing ring and a Gleitring are arranged on the outer circle of the piston.
[0014] Beneficial effects: Compared with the prior art, the utility model has the following remarkable advantages: The utility model is composed of a brake housing and a bearing assembly, the cooperation between the friction plate and the steel plate and the brake shaft, and the rear cover are sequentially connected and assembled. It has the advantages of large braking torque, long service life, anti-fade and maintenance-free, simple structure, reliable performance, good wear resistance and durability. Compared with traditional brakes, the multi-disc wet brake has lower noise and vibration. In a high-load and high-speed working environment, the operating performance of the multi-disc wet brake is more stable and reliable, and it can better ensure the safe operation of construction machinery. Brief Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of the utility model;
[0016] In the figure, 1 is the brake housing; 2 is the skeleton oil seal; 3 is the bearing; 4 is the steel plate; 5 is the friction plate; 6 is the piston; 7 is the gasket; 8 is the spring; 9 is the needle roller bearing; 10 is the brake rear cover; 11 is the brake shaft. Specific Embodiments
[0017] The technical solution of the utility model will be further described below in conjunction with the drawings and specific embodiments.
[0018] The novel multi-disc wet brake of the utility model includes a brake housing 1. A brake shaft 11 and a skeleton oil seal 2 are arranged in the brake housing 1. The brake shaft 11 is connected to a bearing 3, and the brake shaft 11 is connected to multiple groups of steel plates 4 and friction plates 5. The steel plate 4 is connected to a piston 6, and the piston 6 is connected to a spring 8 through a gasket 7.
[0019] The brake rear cover 10 of the brake housing 1 of the utility model is provided with a needle roller bearing 9. The needle roller bearing 9 is installed in the main hole in the middle of the brake rear cover 10. The skeleton oil seal 2 is a skeleton oil seal with a nitrile rubber wrapped stamping skeleton steel plate. The steel plate 4 and the friction plate 5 adopt a connection structure of 6 groups of friction plates plus 7 groups of steel plates. The friction plate 5 is an oil-immersed wet friction plate. The piston 6 is closely attached to the steel plate 4. The outer circle of the piston 6 is provided with a sealing ring and a Gleason ring.
[0020] The utility model adopts a skeleton oil seal 2 with a nitrile rubber-wrapped stamping skeleton steel plate. This shaft seal can withstand a relatively large pressure and can effectively seal hydraulic oil. The braking shaft 11 and the bearing 3 are in standard interference fit, which can effectively extend the service life of the braking shaft 11. The connection method of 6 groups of friction plates 5 plus 7 groups of steel sheets 4 is adopted, and high braking force is transmitted through the oil fluid. The piston 6 is closely attached to the steel sheet 4. The sealing rings and Gleitrings on the outer circle of the piston 6 can effectively seal the housing and prevent cavity leakage. A gasket 7 is added to the piston 6, and the braking torque is adjusted by the quantity of the gasket 7 and the spring 8. A needle roller bearing 9 is installed in the main hole in the middle of the braking rear cover 10, enabling the braking shaft 11 to operate better. This sealing structure can timely compensate for axial wear and enable the axial sealing surface to always remain in contact. The requirements of small friction coefficient and impact resistance of the hydraulic motor are achieved.
[0021] The utility model adopts oil-immersed wet friction plates with vertically cross-molded oil grooves on the friction surfaces. The material is purple-based. Compared with conventional friction plates, it has a better friction coefficient, better braking torque effect, and lower price.
[0022] The hydraulic oil of the utility model enters the braking housing 1, and quickly generates braking force through multiple groups of friction plates 5 and steel sheets 4, making the brake more stable and preventing excessive wear and heat accumulation.
Claims
1. A novel multi-disc wet brake, characterized in that: It includes a brake housing (1), in which a brake shaft (11) and a skeleton oil seal (2) are provided. The brake shaft (11) is connected to a bearing (3), and the brake shaft (11) is connected to multiple groups of steel sheets (4) and friction plates (5). The steel sheets (4) are connected to a piston (6), and the piston (6) is connected to a spring (8) through a gasket (7).
2. The novel multi-disc wet brake according to claim 1, characterized in that: A needle roller bearing (9) is provided on the brake rear cover (10) of the brake housing (1).
3. The novel multi-disc wet brake according to claim 2, characterized in that: The needle roller bearing (9) is installed in the main hole in the middle of the brake rear cover (10).
4. The novel multi-disc wet brake according to claim 1, characterized in that: The skeleton oil seal (2) is a skeleton oil seal with a nitrile rubber-wrapped stamping skeleton steel plate.
5. The novel multi-disc wet brake according to claim 1, wherein: The steel sheets (4) and the friction plates (5) adopt a connection structure of 6 groups of friction plates plus 7 groups of steel sheets.
6. The novel multi-disc wet brake according to claim 5, characterized in that: The friction plate (5) is an oil-immersed wet friction plate.
7. The novel multi-disc wet brake according to claim 5, characterized in that: The piston (6) is closely attached to the steel sheet (4).
8. The novel multi-disc wet brake according to claim 5, characterized in that: Sealing rings and Gleason rings are provided on the outer circle of the piston (6).