Tensioning elastic sheet type friction disc

Abstract

The utility model discloses a tensioning type elastic sheet type friction disc, which comprises a fixing ring, a plurality of tensioning bodies, a tensioning ring and a friction disc, the front end of the fixing ring is provided with the tensioning bodies arranged around the inner ring of the fixing ring, the fixing ring is provided with the tensioning ring sleeved on the tensioning bodies, and the tensioning ring is used for forcing the tensioning bodies to clamp and fix a main shaft. Compared with the prior art, the high-speed transmission device has the advantages that the mounting concentricity is good, the rotation stability is improved, and the adaptability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a tensioning spring-type friction disc. Background Art

[0002] A brake is a device that has the function of slowing down, stopping or keeping moving parts in a stopped state. It is a mechanical part that stops or slows down moving parts in a machine, commonly known as a brake or gate.

[0003] The traction machine is the power equipment of the elevator, also known as the elevator host. Its function is to transport and transmit power to make the elevator run. The brake on the traction machine is usually suitable for locking the traction wheel. The brake is composed of a yoke, an excitation coil, a spring, a brake disc, an armature, a spline sleeve, a spline shaft, and mounting screws. The brake is installed on the flange of the equipment or the rear end extension of the motor; the transmission shaft is connected to the spline sleeve and the brake disc.

[0004] The application (patent) number is: CN202322246287.3, a brake and brake disc assembly, wherein the fixing screws are sleeved on the upper side wall of the sleeve from front to back, and the fixing groove is arranged around the middle of the side wall of the sleeve. When the sleeve is fixed to the main shaft by the fixing screws, the sleeve is deformed and clamped on the main shaft under the action of the fixing screws, resulting in eccentric installation. When rotating, the friction disc has a large amount of jumping deformation and poor rotation stability.

[0005] The application (patent) number is: CN202322810413.3, an elastic brake disc brake system structure, whose elastic friction disc includes a slotted hub, a spring plate, a friction plate and a locking screw. The friction plate is cast on the outer circle of the spring plate, and the locking screw is arranged at a position close to the center of the slotted hub. The friction plate is fixedly connected to the slotted hub by the locking screw. It also has the above-mentioned technical problems. Summary of the invention

[0006] The purpose of the utility model is to solve the problems in the prior art and to provide a tensioning spring-type friction disc which can be installed with good concentricity, improves the rotation stability and has good adaptability.

[0007] To achieve the above-mentioned purpose, the utility model proposes a tensioning spring-type friction disc, comprising a fixing ring, a plurality of tensioning bodies, a tensioning ring and a friction disc, wherein the front end of the fixing ring is provided with a tensioning body arranged around its inner ring, the fixing ring is provided with a tensioning ring sleeved on the tensioning body for forcing the tensioning body to clamp and fix the main shaft, and the rear end of the fixing ring is provided with a friction disc.

[0008] Preferably, a tension sleeve is provided at the front end of the fixing ring, and a plurality of split openings are provided at the front end of the tension sleeve for splitting the front end of the tension sleeve into a plurality of tension bodies.

[0009] Preferably, an outer guiding conical surface is provided on the outer side surface of the tensioning sleeve.

[0010] Preferably, an inner guiding conical surface that cooperates with the outer guiding conical surface is provided on the inner circumferential surface of the tensioning ring, and the diameter of the inner guiding conical surface is smaller at the front and larger at the rear.

[0011] Preferably, a keyway I is provided on the inner wall of the fixing ring, the keyway I extends forward and penetrates through the front end of the tensioning sleeve, a keyway II is provided on the inner guiding conical surface, and the keyway I and the keyway II are arranged corresponding to each other.

[0012] Preferably, the friction disc includes a spring piece and friction pieces provided on the periphery of the spring piece, and the spring piece is fixedly connected to the fixing ring by a plurality of fastening screws I.

[0013] Preferably, the tensioning ring is fixedly connected to the fixing ring by a plurality of fastening screws II.

[0014] Preferably, a counterbore corresponding to and cooperating with the nut of the fastening screw II is provided at the front end of the tensioning ring.

[0015] The present utility model also provides a tensioning spring piece type friction disc, which includes a fixing ring, a plurality of tensioning bodies, a tensioning ring and a friction disc. Tensioning bodies are provided at the front end of the tensioning ring around its inner circumference. A fixing ring sleeved on the tensioning bodies is provided on the tensioning ring to force the tensioning bodies to clamp and fix the main shaft, and a friction disc is provided at the front end of the fixing ring.

[0016] The beneficial effects of the present utility model: By providing tensioning bodies around the inner circumference at the front end of the fixing ring, and a tensioning ring sleeved on the tensioning bodies on the fixing ring to force the tensioning bodies to clamp and fix the main shaft, the present utility model avoids the phenomenon of eccentric fixation, has better adaptability to the diameter of the main shaft. Compared with the prior art, it can be installed with good concentricity, improve the rotational stability, and has good adaptability.

[0017] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Description of the Drawings

[0018] Figure 1 is an exploded structural schematic diagram of a tensioning spring piece type friction disc in Embodiment 1;

[0019] Figure 2 is a rear view of a tensioning spring piece type friction disc in Embodiment 1;

[0020] Figure 3 is an exploded structural schematic diagram of a tensioning spring piece type friction disc in Embodiment 2.

[0021] In the figure: 1 - fixed ring, 2 - tension body, 3 - tension ring, 4 - friction disc, 5 - tension sleeve, 6 - split opening, 7 - outer guiding conical surface, 8 - inner guiding conical surface, 9 - keyway II, 10 - fastening screw I, 11 - fastening screw II, 12 - counterbore, 13 - keyway I, 41 - spring piece, 42 - friction piece. Detailed implementation mode

[0022] Embodiment 1

[0023] Refer to Figure 1 、 2 For a tension - type elastic - piece - type friction disc of the present utility model, it includes a fixed ring 1, a plurality of tension bodies 2, a tension ring 3 and a friction disc 4. At the front end of the fixed ring 1, tension bodies 2 are arranged around its inner circle. On the fixed ring 1, there is a tension ring 3 sleeved on the tension bodies 2 for forcing the tension bodies 2 to clamp and fix the main shaft, and at the rear end of the fixed ring 1, there is a friction disc 4.

[0024] At the front end of the fixed ring 1, there is a tension sleeve 5. At the front end of the tension sleeve 5, there are a plurality of split openings 6 for splitting the front end of the tension sleeve 5 to form a plurality of tension bodies 2.

[0025] The outer side surface of the tension sleeve 5 is provided with an outer guiding conical surface 7.

[0026] The inner circle surface of the tension ring 3 is provided with an inner guiding conical surface 8 that cooperates with the outer guiding conical surface 7, and the diameter of the inner guiding conical surface 8 is smaller at the front and larger at the rear.

[0027] On the inner wall of the fixed ring 1, there is a keyway I 13. The keyway I 13 extends forward and penetrates the front end of the tension sleeve 5. On the inner guiding conical surface 8, there is a keyway II 9, and the keyway I 13 and the keyway II 9 are arranged corresponding to each other.

[0028] The friction disc 4 includes a spring piece 41 and friction pieces 42 arranged on the periphery of the spring piece 41. The spring piece 41 is fixedly connected to the fixed ring 1 through a plurality of fastening screws I 10.

[0029] The tension ring 3 is fixedly connected to the fixed ring 1 through a plurality of fastening screws II 11.

[0030] At the front end of the tension ring 3, there are counterbores 12 corresponding to and cooperating with the nuts of the fastening screws II 11 one by one.

[0031] The working process of the present utility model:

[0032] During the working process of a tension - type elastic - piece - type friction disc of the present utility model, the main shaft passes through the fixed ring 1 and the tension sleeve 5, and then the fastening screw II 11 is turned to drive the tension ring 3 to move backward. The tension ring 3 forces the tension bodies 2 to deform to clamp and fix the main shaft through the cooperation of the outer guiding conical surface 7 and the inner guiding conical surface 8.

[0033] Embodiment 2

[0034] Refer to Figure 3 , a tensioned elastic friction disc of the present utility model includes a fixed ring 1, a plurality of tensioning bodies 2, a tensioning ring 3 and a friction disc 4. A tensioning body 2 is arranged at the rear end of the tensioning ring 3 around its inner circle. A fixed ring 1 sleeved on the tensioning body 2 is arranged on the tensioning ring 3 to force the tensioning body 2 to clamp and fix the main shaft. A friction disc 4 is arranged at the rear end of the fixed ring 1.

[0035] A tensioning sleeve 5 is arranged at the rear end of the tensioning ring 3. A plurality of split openings 6 are arranged at the rear end of the tensioning sleeve 5 to divide the front end of the tensioning sleeve 5 to form a plurality of tensioning bodies 2.

[0036] An outer guiding conical surface 7 is arranged on the outer side surface of the tensioning sleeve 5.

[0037] An inner guiding conical surface 8 matched with the outer guiding conical surface 7 is arranged on the inner circle surface of the fixed ring 1. The diameter of the inner guiding conical surface 8 is larger at the front and smaller at the rear.

[0038] A keyway I13 is arranged on the inner wall of the tensioning ring 3. The keyway I13 extends backward and penetrates through the rear end of the tensioning sleeve 5. A keyway II9 is arranged on the inner guiding conical surface 8. The keyway I13 and the keyway II9 are arranged corresponding to each other.

[0039] The friction disc 4 includes a spring piece 41 and a friction piece 42 arranged on the periphery of the spring piece 41. The spring piece 41 is fixedly connected with the fixed ring 1 through a plurality of fastening screws I10.

[0040] The tensioning ring 3 is fixedly connected with the fixed ring 1 through a plurality of fastening screws II11.

[0041] A counterbore 12 corresponding to and matched with the nuts of the fastening screws II11 is arranged at the front end of the tensioning ring 3.

[0042] The above embodiments are descriptions of the present utility model, not limitations of the present utility model. Any scheme obtained by simply changing the present utility model belongs to the protection scope of the present utility model.

Claims

1. A tensioning spring-type friction disc, characterized in that: The invention comprises a fixing ring (1), a plurality of tensioning bodies (2), a tensioning ring (3) and a friction disk (4); the front end of the fixing ring (1) is provided with a tensioning body (2) arranged around its inner ring; the fixing ring (1) is provided with a tensioning ring (3) sleeved on the tensioning body (2) for forcing the tensioning body (2) to clamp and fix the main shaft; the rear end of the fixing ring (1) is provided with a friction disk (4).

2. The tensioning spring-type friction disc according to claim 1, characterized in that: A tension sleeve (5) is provided at the front end of the fixing ring (1), and a plurality of split openings (6) are provided at the front end of the tension sleeve (5) for splitting the front end of the tension sleeve (5) into a plurality of tension bodies (2).

3. The tensioning spring-type friction disc according to claim 2, characterized in that: An outer guide cone surface (7) is provided on the outer side surface of the tension sleeve (5).

4. A tensioning spring-type friction disc as claimed in claim 3, characterized in that: The inner ring surface of the tension ring (3) is provided with an inner guide cone surface (8) that matches the outer guide cone surface (7), and the diameter of the inner guide cone surface (8) is smaller at the front and larger at the back.

5. The tensioning spring-type friction disc according to claim 4, characterized in that: The inner wall of the fixing ring (1) is provided with a key groove I (13), the key groove I (13) extends forward and passes through the front end of the tension sleeve (5), and the inner guide cone surface (8) is provided with a key groove II (9), the key groove I (13) and the key groove II (9) are arranged correspondingly.

6. The tensioning spring-type friction disc according to claim 1, characterized in that: The friction disc (4) comprises a spring plate (41) and a friction plate (42) arranged on the periphery of the spring plate (41); the spring plate (41) is fixedly connected to the fixing ring (1) via a plurality of fastening screws I (10).

7. The tensioning spring-type friction disc according to claim 1, characterized in that: The tensioning ring (3) is fixedly connected to the fixing ring (1) via a plurality of fastening screws II (11).

8. The tensioning spring-type friction disc according to claim 7, characterized in that: The front end of the tension ring (3) is provided with a recessed groove (12) which corresponds to and cooperates with the nut of the fastening screw II (11).

9. A tensioning spring-type friction disc, characterized in that: The invention comprises a fixing ring (1), a plurality of tensioning bodies (2), a tensioning ring (3) and a friction disk (4); the rear end of the tensioning ring (3) is provided with a tensioning body (2) arranged around its inner ring; the tensioning ring (3) is provided with a fixing ring (1) sleeved on the tensioning body (2) for forcing the tensioning body (2) to clamp and fix the main shaft; the rear end of the fixing ring (1) is provided with a friction disk (4).

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