High-pressure disc spring reset four-cylinder high-torque symmetric brake

Abstract

The utility model relates to the technical field of high-torque symmetrical brakes, and discloses a high-pressure disc spring reset four-cylinder high-torque symmetrical brake which comprises a cylinder body, a baffle and a dustproof ring, the baffle is fixedly connected to the upper end of the cylinder body, a magnet is fixedly connected to the lower end of the interior of the cylinder body, and the baffle is fixedly connected to the lower end of the interior of the cylinder body. And the dustproof ring is fixedly connected to the lower side of the magnet. According to the high-pressure disc spring reset four-cylinder high-torque symmetrical brake, resilience force of the disc springs is used for achieving the reset function, the limitation that reset springs are installed outside the cylinder holes is solved, meanwhile, the force of the disc springs is far larger than that of spiral springs in performance, and due to the fact that the pistons in the four cylinder holes are internally provided with disc spring sets, the disc springs are not prone to deformation. Therefore, the reset force of the disc spring can completely overcome the gravity of the piston and friction and damping in operation, the friction plate and the piston are completely free of clamping stagnation in the operation process, and in the design process, the design of the four cylinder holes can also meet the requirement of customers for high torque under the condition of high oil pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of large torque symmetrical brakes, in particular to a high-pressure disc spring reset four-cylinder large torque symmetrical brake. Background Art

[0002] It is a high-torque symmetrical brake that relies on disc spring reset and is mainly installed on the rear end support plate of the generator.

[0003] As the MW of wind turbines continues to increase, the two-cylinder and three-cylinder brakes produced earlier can no longer meet the torque requirements of customers due to their small torque. In addition, the friction plate and piston are reset by external coil springs. Due to the limitation of installation space, the external coil springs cannot meet the needs of such high-torque brakes.

[0004] For this purpose, our R&D department has developed a method of placing a disc spring assembly inside the piston of each cylinder hole, and using the disc spring rebound force as a reset function. This not only solves the limitation of installing a reset spring outside the cylinder hole, but also the disc spring force far exceeds the force of the spiral spring in terms of performance. Since there are disc spring groups inside the pistons in the four cylinder holes, the reset force of the disc spring can completely overcome the gravity of the piston and friction as well as the damping during operation. During operation, there is no sticking phenomenon between the friction plate and the piston. During the design process, the design of the four cylinder holes can also meet the high torque requirements of customers under high oil pressure conditions. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a high-pressure disc spring reset four-cylinder high-torque symmetrical brake to solve the problem raised in the above background technology that due to the continuous increase in the MW of fans, the two-cylinder and three-cylinder brakes produced in the early stage have small torque and can no longer meet the torque requirements of customers.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure disc spring reset four-cylinder high-torque symmetrical brake, which includes a cylinder body, a baffle, a magnet, a dust ring, a disc spring assembly, a step seal, a guide belt, a screw, a cover plate, a tightening bolt, a guide rod, a plug, a piston, a gasket with a wear alarm, a wear alarm line, an oil inlet, an oil drain port, a mounting bracket and a brake disc, the baffle is fixedly connected to the upper end of the cylinder body, the magnet is fixedly connected to the lower end of the inside of the cylinder body, the dust ring is fixedly connected to the lower side of the magnet, the disc spring assembly is fixedly connected to the upper side of the magnet, and the step seal is fixedly connected to the lower side of the magnet.

[0009] Preferably, the guide belt is fixedly connected to the lower end of the step seal, and the screw is movably connected to the upper side of the magnet. The rebound force of the disc spring is used as the reset function, which not only solves the limitation of installing the reset spring outside the cylinder hole, but also the disc spring force far exceeds the force of the spiral spring in terms of performance. Since there are disc spring groups inside the pistons in the four cylinder holes, the reset force of the disc spring can completely overcome the gravity of the piston and friction as well as the damping during operation. During operation, there is no sticking phenomenon between the friction plate and the piston. During the design process, the design of the four cylinder holes can also meet the high torque requirements under high oil pressure conditions required by customers.

[0010] Preferably, the cover plate is fixedly connected to the left end of the disc spring assembly, and the tightening bolt is fixedly connected to the upper side of the disc spring assembly. The rated oil pressure required by the customer is introduced to push the piston forward. The piston will compress the disc spring. At the same time, the gasket with the wear alarm line will also push toward the brake disc, causing the running brake disc to stop moving. When the braking work is completed and the brake needs to be opened, the oil pressure is released, and the restoring force of the disc spring will drive the piston and the friction plate to retreat at the same time. Since the disc spring force is relatively large, it completely exceeds the gravity of the piston and the friction plate, as well as the friction damping between them, so there will be no sticking in the retreat state.

[0011] Preferably, the guide rod is fixedly connected to the upper side of the tightening bolt, and the plug is fixedly connected to the right side of the tightening bolt.

[0012] Preferably, the piston is fixedly connected to the upper side of the guide rod, and the liner with wear alarm is fixedly connected to the upper end of the cylinder body, and is provided with a liner wear indicator line. One end of the wear indicator line is buried in the friction material, and the other end is connected to the customer's display alarm end. When the liner is worn to this position, the indicator line will be worn off, and the client will alarm at this time, indicating that the liner needs to be replaced with a new one. The piston end face and the liner contact surface are adsorbed by a magnet. When replacing a new liner, you only need to remove one side baffle and pull it out, which is very convenient and quick.

[0013] Preferably, the wear alarm line is fixedly connected to the front end of the cylinder body, and the oil inlet is fixedly connected to the upper end of the cylinder body.

[0014] Preferably, the oil drain port is fixedly connected to the upper end of the cylinder body, and the mounting bracket is fixedly connected to the lower end of the cylinder body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This high-pressure disc spring reset four-cylinder high-torque symmetrical brake uses the disc spring rebound force as the reset function, which not only solves the limitation of installing the reset spring outside the cylinder hole, but also the disc spring force far exceeds the force of the spiral spring in terms of performance. Since there are disc spring groups inside the pistons in the four cylinder holes, the disc spring reset force can completely overcome the gravity of the piston and friction as well as the damping during operation. During operation, there is no jamming between the friction plate and the piston. During the design process, the design of the four cylinder holes can also meet the high torque requirements of customers under high oil pressure conditions;

[0017] 2. This high-pressure disc spring reset four-cylinder high-torque symmetrical brake comes with a lining wear indicator line. One end of the wear indicator line is buried inside the friction material, and the other end is connected to the customer's display alarm terminal. When the lining is worn to this position, the indicator line will be worn off, and the client will alarm, indicating that the lining needs to be replaced with a new one. The piston end face and the lining contact surface are adsorbed by magnets. When replacing a new lining, you only need to remove one side of the baffle and pull it out, which is very convenient and quick;

[0018] 3. The high-pressure disc spring reset four-cylinder high-torque symmetrical brake is fed with the rated oil pressure required by the customer to push the piston forward. The piston will compress the disc spring, and at the same time, the pad with the wear alarm line will be pushed toward the brake disc to stop the running brake disc. When the braking work is completed and the brake needs to be opened, the oil pressure is released, and the reset force of the disc spring will drive the piston and friction plate to return at the same time. Since the disc spring force is large, it completely exceeds the gravity of the piston and friction plate, as well as the friction damping between them, so there will be no sticking in the return state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the cylinder structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the screw structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the wear alarm line of the utility model.

[0023] In the figure: 1. Cylinder body; 2. Baffle; 3. Magnet; 4. Dust ring; 5. Disc spring assembly; 6. Step seal; 7. Guide belt; 8. Screw; 9. Cover plate; 10. Tightening bolt; 11. Guide rod; 12. Plug; 13. Piston; 14. Gasket with wear alarm; 15. Wear alarm line; 16. Oil inlet; 17. Oil drain port; 18. Mounting bracket; 19. Brake disc. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a high-pressure disc spring reset four-cylinder high-torque symmetrical brake, which includes a cylinder body 1, a baffle 2, a magnet 3, a dust ring 4, a disc spring assembly 5, a step seal 6, a guide belt 7, a screw 8, a cover plate 9, a tightening bolt 10, a guide rod 11, a plug 12, a piston 13, a gasket with a wear alarm 14, a wear alarm line 15, an oil inlet 16, an oil drain port 17, a mounting bracket 18 and a brake disc 19. The baffle 2 is fixedly connected to the upper end of the cylinder body 1, the magnet 3 is fixedly connected to the lower end inside the cylinder body 1, the dust ring 4 is fixedly connected to the lower side of the magnet 3, the disc spring assembly 5 is fixedly connected to the upper side of the magnet 3, and the step seal 6 is fixedly connected to the lower side of the magnet 3.

[0026] The guide belt 7 is fixedly connected to the lower end of the step seal 6, the screw 8 is movably connected to the upper side of the magnet 3, the cover plate 9 is fixedly connected to the left end of the disc spring assembly 5, the tightening bolt 10 is fixedly connected to the upper side of the disc spring assembly 5, the guide rod 11 is fixedly connected to the upper side of the tightening bolt 10, and the plug 12 is fixedly connected to the right side of the tightening bolt 10. A gasket wear indicator line is provided, one end of the wear indicator line is buried inside the friction material, and the other end is connected to the customer's display alarm terminal. When the gasket is worn to this position, the indicator line will be worn off, and the client will alarm at this time, indicating that the gasket needs to be replaced with a new one. The end face of the piston 13 and the contact surface of the gasket are adsorbed by the magnet 3. When replacing a new gasket, you only need to remove one side baffle 2 and pull it out, which is very convenient and quick.

[0027] The piston 13 is fixedly connected to the upper side of the guide rod 11, the gasket 14 with a wear alarm is fixedly connected to the upper end of the cylinder body 1, the wear alarm line 15 is fixedly connected to the front end of the cylinder body 1, the oil inlet 16 is fixedly connected to the upper end of the cylinder body 1, the oil drain port 17 is fixedly connected to the upper end of the cylinder body 1, and the mounting bracket 18 is fixedly connected to the lower end of the cylinder body 1. The rated oil pressure required by the customer is introduced to push the piston 13 forward. The piston 13 will compress the disc spring. At the same time, the gasket 14 with the wear alarm line 15 will also push toward the brake disc 19 to stop the running brake disc 19 from moving. When the braking work is completed and the brake needs to be opened, the oil pressure is released, and the restoring force of the disc spring will drive the piston 13 and the friction plate to retreat at the same time. Since the disc spring force is large, it completely exceeds the gravity of the piston 13 and the friction plate, as well as the friction damping between them, so there will be no sticking in the retreat state.

[0028] Working principle: the rated oil pressure required by the customer is introduced to push the piston 13 forward. The piston 13 will compress the disc spring. At the same time, the liner 14 with the wear alarm line 15 will also push toward the brake disc 19, so that the running brake disc 19 stops moving. When the braking work is completed and the brake needs to be opened, the oil pressure is released, and the restoring force of the disc spring will drive the piston 13 and the friction plate to retreat at the same time. Since the disc spring force is large, it completely exceeds the gravity of the piston 13 and the friction plate, as well as the friction damping between them, so there will be no jamming in the retreat state. There is a liner wear indicator line attached. One end of the wear indicator line is buried in the friction material, and the other end is connected to the customer's display alarm end. When the liner is worn to this position, the indicator line will be worn off. At this time, the client will alarm, indicating that the liner needs to be replaced with a new one. The end face of the piston 13 and the contact surface of the liner are adsorbed by a magnet 3. When replacing a new liner, you only need to remove one side baffle 2 and pull it out, which is very convenient and quick.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A high-pressure disc spring reset four-cylinder high-torque symmetrical brake, comprising a cylinder body (1), a baffle (2), a magnet (3), a dust ring (4), a disc spring assembly (5), a step seal (6), a guide belt (7), a screw (8), a cover plate (9), a tightening bolt (10), a guide rod (11), a plug (12), a piston (13), a gasket with a wear alarm (14), a wear alarm line (15), an oil inlet (16), an oil drain port (17), a mounting bracket (18) and a brake disc (19), characterized in that: The baffle (2) is fixedly connected to the upper end of the cylinder body (1), the magnet (3) is fixedly connected to the lower end inside the cylinder body (1), the dust ring (4) is fixedly connected to the lower side of the magnet (3), the disc spring assembly (5) is fixedly connected to the upper side of the magnet (3), and the step seal (6) is fixedly connected to the lower side of the magnet (3).

2. The high-pressure disc spring return four-cylinder high-torque symmetrical brake according to claim 1 is characterized in that: The guide belt (7) is fixedly connected to the lower end of the step seal (6), and the screw (8) is movably connected to the upper side of the magnet (3).

3. The high-pressure disc spring return four-cylinder high-torque symmetrical brake according to claim 2 is characterized in that: The cover plate (9) is fixedly connected to the left end of the disc spring assembly (5), and the tightening bolt (10) is fixedly connected to the upper side of the disc spring assembly (5).

4. The high-pressure disc spring return four-cylinder high-torque symmetrical brake according to claim 3 is characterized in that: The guide rod (11) is fixedly connected to the upper side of the tightening bolt (10), and the plug (12) is fixedly connected to the right side of the tightening bolt (10).

5. The high-pressure disc spring return four-cylinder high-torque symmetrical brake according to claim 4 is characterized in that: The piston (13) is fixedly connected to the upper side of the guide rod (11), and the liner (14) with wear alarm is fixedly connected to the upper end of the cylinder body (1).

6. The high-pressure disc spring return four-cylinder high-torque symmetrical brake according to claim 5 is characterized in that: The wear alarm line (15) is fixedly connected to the front end of the cylinder body (1), and the oil inlet (16) is fixedly connected to the upper end of the cylinder body (1).

7. The high-pressure disc spring return four-cylinder high-torque symmetrical brake according to claim 6 is characterized in that: The oil drain port (17) is fixedly connected to the upper end of the cylinder body (1), and the mounting bracket (18) is fixedly connected to the lower end of the cylinder body (1).

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