Brake with adjustable torque

Abstract

The utility model discloses a brake capable of adjusting torque, which comprises a framework oil seal, a tapered roller bearing and a brake shell, a fit clearance is arranged between the brake shell and the tapered roller bearing, the tapered roller bearing is connected with a brake shaft, and five groups of friction plates and five groups of steel sheets are arranged outside the brake shaft; the brake shell and the spring are separated through a gasket, and a thick steel sheet is arranged on the spring. The steel sheet is attached to the piston, and the brake rear cover is sealed through a sealing ring on the outer ring of the piston. The utility model has the advantages of large braking torque, long service life, recession resistance, no maintenance and the like, and is simple in structure, reliable in performance and good in wear resistance.

Description

Technical Field

[0001] This utility model relates to the field of brakes, and more particularly to a brake with adjustable torque. Background Technology

[0002] Traditional brakes suffer from poor stability, poor wear resistance, and short service life during use, especially in high-load and high-speed working environments.

[0003] Therefore, it is necessary to develop new types of brakes to improve operational stability, wear resistance, and service life. Utility Model Content

[0004] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides an adjustable torque brake, which has the advantages of large braking torque, long service life, anti-fading and maintenance-free, simple structure, reliable performance and good wear resistance.

[0005] Technical solution: This utility model discloses an adjustable torque brake, characterized in that it includes a skeleton oil seal, a tapered roller bearing, and a brake housing. A fitting clearance is provided between the brake housing and the tapered roller bearing. The tapered roller bearing is connected to the brake shaft. Five sets of friction plates and five sets of steel plates are provided on the outside of the brake shaft. The brake housing and the spring are separated by a gasket. A thick steel plate is provided on the spring. The steel plate is in contact with the piston, and the sealing ring of the piston's outer ring seals the brake rear cover.

[0006] The aforementioned skeleton oil seal adopts a structure in which a stamped skeleton steel plate is wrapped with nitrile rubber.

[0007] The brake housing and the tapered roller bearing have a clearance of 0.02mm-0.03mm.

[0008] The upper part of the brake shaft is connected to a tapered roller bearing, and the lower part of the brake shaft is connected to a small tapered roller bearing.

[0009] The friction pads mentioned above are oil-immersed wet friction pads.

[0010] The friction pad is a 65Mn+ copper-based friction pad.

[0011] Beneficial effects: Compared with the prior art, this utility model has the following significant advantages: This utility model is assembled by connecting the housing and cylindrical roller bearings, the thick steel sheet and spring, the friction plate and steel sheet with the brake shaft, and the rear cover and piston in sequence. It has the advantages of large braking torque, long service life, anti-fading and maintenance-free, simple structure, reliable performance and good wear resistance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] In the diagram, 1 is the skeleton oil seal; 2 is the tapered roller bearing; 3 is the brake housing; 4 is the spring; 5 is the thick steel plate; 6 is the friction plate; 7 is the steel plate; 8 is the piston; 9 is the small tapered roller bearing; 10 is the brake rear cover; and 11 is the brake shaft. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] The adjustable torque brake of this utility model includes a skeleton oil seal 1, a tapered roller bearing 2 and a brake housing 3. A fitting clearance is provided between the brake housing 3 and the tapered roller bearing 2. The tapered roller bearing 2 is connected to the brake shaft 11. Five sets of friction plates 6 and five sets of steel plates 7 are provided on the outside of the brake shaft 11. A gasket is used to separate the brake housing 3 and the spring 4. A thick steel plate 5 is provided on the spring 4. The steel plate 7 is in contact with the piston 8. The sealing ring of the outer ring of the piston 8 seals the brake rear cover 10.

[0016] The skeleton oil seal 1 of this utility model adopts a structure in which a stamped skeleton steel plate is wrapped with nitrile rubber. A clearance of 0.02mm-0.03mm is provided between the brake housing 3 and the tapered roller bearing 2. The upper part of the brake shaft 11 is connected to the tapered roller bearing 2, and the lower part of the brake shaft 11 is connected to the small tapered roller bearing 9. The friction plate 6 is an oil-immersed wet friction plate. The friction plate 6 is a 65Mn+copper-based friction plate.

[0017] During operation, hydraulic oil enters the brake cover 10 and generates corresponding braking force through the friction coefficient of multiple sets of friction plates 6 and steel plates 7, making the brake more stable and preventing excessive wear and heat accumulation. A skeleton oil seal 1, with a nitrile rubber-coated stamped steel frame, is used. This shaft seal can withstand high pressure and effectively seal the hydraulic oil. There is a 0.02-0.03mm clearance between the brake housing 3 and the tapered roller bearing 2. The tapered roller bearing 2 drives the brake shaft 11 through its own characteristics. A connection of 5 sets of friction plates 6 and 5 sets of steel plates 7 is used. A gasket separates the spring 4 from the brake housing 3, and a thick steel plate 5 is pressed on top of the spring 4. High braking force is transmitted through the hydraulic fluid. The piston 8 is tightly attached to the steel plate 7, and the sealing ring on the outer circumference of the piston 8 effectively seals the cover and prevents leakage. The braking torque is adjusted by the number of friction plates 6 and steel plates 7. A tapered roller bearing 2 is installed at both the front and rear of the brake shaft, allowing the brake shaft 11 to operate more efficiently.

[0018] The sealing structure of this invention enables timely compensation for axial wear, ensuring that the axial sealing surfaces remain in contact at all times. This achieves the requirements of low friction coefficient and impact resistance for hydraulic motors. Compared to traditional brakes, this brake exhibits lower noise and vibration, and its operational performance is more stable and reliable under high-load, high-speed operating environments, better guaranteeing the safe operation of construction machinery.

[0019] The brake housing 3, piston 8, brake shaft 11, and brake rear cover 10 of this utility model are outsourced for blank machining according to the drawings, and then the finished parts are machined in-house. The skeleton oil seal 1, oil seal retaining ring, tapered roller bearing 2, seals, spring 4, etc., are all outsourced for finished part machining. Afterwards, the parts are assembled and tested in-house to finally form the product. Oil-immersed wet friction pads are used. The material is 65Mn+copper-based, which has a better coefficient of friction, better braking torque effect, and greater stability compared to conventional friction pads.

Claims

1. An adjustable torque brake, characterized in that: The system includes a skeleton oil seal (1), a tapered roller bearing (2), and a brake housing (3). There is a fitting clearance between the brake housing (3) and the tapered roller bearing (2). The tapered roller bearing (2) is connected to the brake shaft (11). The brake shaft (11) is provided with 5 sets of friction plates (6) and 5 sets of steel plates (7) on its outside. The brake housing (3) and the spring (4) are separated by a gasket. A thick steel plate (5) is provided on the spring (4). The steel plate (7) is in contact with the piston (8). The sealing ring of the outer ring of the piston (8) seals the brake rear cover (10).

2. The adjustable torque brake according to claim 1, characterized in that: The aforementioned skeleton oil seal (1) adopts a structure in which a stamped skeleton steel plate is wrapped with nitrile rubber.

3. The adjustable torque brake according to claim 1, characterized in that: The brake housing (3) and the tapered roller bearing (2) are provided with a fitting clearance of 0.02mm-0.03mm.

4. The adjustable torque brake according to claim 1, characterized in that: The upper part of the brake shaft (11) is connected to the tapered roller bearing (2), and the lower part of the brake shaft (11) is connected to the small tapered roller bearing (9).

5. The adjustable torque brake according to claim 1, characterized in that: The friction plate (6) mentioned above is an oil-immersed wet friction plate.

6. The adjustable torque brake according to claim 5, characterized in that: The friction plate (6) is a 65Mn+ copper-based friction plate.

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