Elevator traction machine with stable braking structure

Abstract

The utility model discloses an elevator traction machine with a stable braking structure, which relates to the technical field of traction machines and comprises a rack, a cavity structure is arranged on the rack, and a support frame is fixedly arranged on the front side of the rack; a brake disc is integrally machined and formed on the traction wheel, the diameter of the brake disc is larger than that of the traction wheel, and the brake disc is located in the cavity structure of the rack; a traction wheel is arranged on the top of the rack, a planetary speed reduction assembly is fixedly arranged in the traction wheel, the planetary speed reduction assembly is used for driving the traction wheel to rotate, an input shaft is arranged on the planetary speed reduction assembly, and a rotating shaft is fixedly arranged on the outer side of the planetary speed reduction assembly. The planetary speed reduction assembly is arranged on the supporting frame to form a stable braking structure, so that the braking stability and safety of the traction machine are effectively improved, meanwhile, the two ends of the planetary speed reduction assembly are supported by the supporting frame and the rack respectively, and the operation stability of the traction wheel is effectively improved.

Description

Technical Field

[0001] The utility model relates to an elevator traction machine with a stable braking structure, belonging to the technical field of traction machines. Background Art

[0002] The elevator traction machine is the power equipment of the elevator. The elevator traction machine makes the elevator move up and down by transmitting and transferring power.

[0003] Referring to the patent recently applied for by the applicant: CN216336053U "And an easily adjustable elevator traction machine based on bilateral braking", this solution adopts bilateral brakes for the convenience of adjustment. However, since different customers have different requirements for the use scenarios of the traction machine, the braking stability of the bilateral brakes is also subject to severe tests. Therefore, it is necessary to improve on this basis to adapt to the use requirements of elevators in different scenarios. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an elevator traction machine with a stable braking structure.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: an elevator traction machine with a stable braking structure, comprising

[0006] A frame, wherein a cavity structure is formed on the frame, and a support frame is fixedly provided on the front side of the frame;

[0007] A traction sheave is integrally formed with a brake disc, the diameter of which is larger than that of the traction sheave, and the brake disc is located in the cavity structure of the frame; a planetary reduction assembly is fixedly provided inside the traction sheave, and the planetary reduction assembly is used to drive the traction sheave to rotate, the planetary reduction assembly has an input shaft, and a rotating shaft is fixedly provided on the outside of the planetary reduction assembly, and the rotating shaft is rotatably matched with the support frame;

[0008] A motor is mounted on a side of the frame away from the traction sheave, and the motor and the frame are an integrated structure, the output shaft of the motor is fixedly connected to the input shaft of the planetary reduction assembly, and the motor is used to drive the planetary reduction assembly;

[0009] The brake is provided in plurality, and the plurality of brake discs are respectively fixedly provided at both ends and the top of the frame, and the plurality of brakes are used to brake the brake discs.

[0010] Preferably, brake ports are provided at both ends and the top of the frame, and the brake passes through the brake ports to brake the brake disc.

[0011] Preferably, a first bearing is provided on the support frame, and the rotating shaft and the support frame are rotatably engaged through the first bearing.

[0012] Preferably, an end cover is fixedly provided on the outer side of the motor, a second bearing is provided on the end cover, and the output shaft of the motor and the end cover are rotatably engaged through the second bearing; a junction box is provided on the top of the motor.

[0013] Preferably, a turning shaft is provided on the end cover, the turning shaft extends into the interior of the motor and cooperates with the motor, and a turning handwheel is provided at the outer end of the turning shaft; an encoder is provided at the center of the end cover, and the encoder cooperates with the output shaft of the motor.

[0014] Preferably, a plurality of evenly distributed reinforcing ribs are provided inside the traction sheave, and the plurality of reinforcing ribs are integrally formed on the traction sheave.

[0015] Preferably, a plurality of lifting rings are provided on the frame.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The utility model provides an elevator traction machine with a stable braking structure. By arranging brakes at both ends and the top of the frame, multiple positions of the brake disc can be braked simultaneously to form a stable braking structure, thereby effectively improving the stability and safety of the traction machine braking. At the same time, the two ends of the planetary reduction assembly are supported by the support frame and the frame respectively, which effectively improves the operating stability of the traction wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0019] Attachment Figure 1 This is a structural schematic diagram of an elevator traction machine with a stable braking structure according to the utility model;

[0020] Attachment Figure 2 This is a schematic diagram of the structure of the utility model without the brake;

[0021] Attachment Figure 3 This is a schematic diagram of the structure of the utility model without the traction sheave;

[0022] Attachment Figure 4 It is a cross-sectional view of the present utility model.

[0023] In the figure: 1. Frame; 11. Cavity structure; 12. Support frame; 121. First bearing; 13. Brake port; 14. Lifting ring; 2. Traction sheave; 21. Brake disc; 22. Planetary reduction assembly; 221. Input shaft; 222. Rotating shaft; 23. Reinforcement rib; 3. Motor; 31. Output shaft; 32. End cover; 321. Second bearing; 322. Turning gear shaft; 323. Turning gear handwheel; 324. Encoder; 33. Junction box; 4. Brake. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] As attached Figure 1-4 As shown, the elevator traction machine with a stable braking structure described in the utility model includes a frame 1, a traction sheave 2, a motor 3 and a brake 4; a cavity structure 11 is opened on the frame 1, a support frame 12 is fixedly provided on the front side of the frame 1, and a plurality of lifting rings 14 are provided on the frame 1 to facilitate the lifting of the entire traction machine.

[0026] A brake disc 21 is integrally formed on the traction sheave 2. The diameter of the brake disc 21 is larger than the diameter of the traction sheave 2, so that more exposed area is created between the brake disc 21 and the traction sheave 2 to facilitate heat dissipation of the brake disc 21, and the brake disc 21 is located in the cavity structure 11 of the frame 1, which reduces the length of the entire traction machine structure and makes the traction machine smaller. A planetary reduction assembly 22 is fixedly provided inside the traction sheave 2. The planetary reduction assembly 22 is used to drive the traction sheave 2 to rotate. The planetary reduction assembly 22 has an input shaft 221, and a rotating shaft 222 is fixedly provided on the outside of the planetary reduction assembly 22. The rotating shaft 222 rotates with the support frame 12. Specifically, a first bearing 121 is provided on the support frame 12, and the rotating shaft 222 rotates with the support frame 12 through the first bearing 121.

[0027] The interior of the traction sheave 2 is provided with multiple evenly distributed reinforcing ribs 23, and the multiple reinforcing ribs 23 are all integrally formed on the traction sheave 2. The integrally provided reinforcing ribs 23 enhance the structural strength of the traction sheave 2, making the traction sheave 2 run more stably.

[0028] The motor 3 is installed on the side of the frame 1 away from the traction wheel 2, and the motor 3 and the frame 1 are an integrated structure. The output shaft 31 of the motor 3 is fixedly connected to the input shaft 221 of the planetary reduction assembly 22, and the motor 3 is used to drive the planetary reduction assembly 22.

[0029] One end of the planetary reduction assembly 22 rotates with the support frame 12, and the other end cooperates with the motor 3 on the frame 1. The support frame 12 and the frame 1 support the planetary reduction assembly 22 and the traction wheel 2 on both sides, effectively improving the operating stability of the traction wheel 2.

[0030] An end cover 32 is fixedly provided on the outside of the motor 3, and a second bearing 321 is provided on the end cover 32. The output shaft 31 of the motor 3 and the end cover 32 are rotatably engaged through the second bearing 321; a junction box 33 is provided on the top of the motor 3, which is used to supply power to the motor 3.

[0031] A turning shaft 322 is provided on the end cover 32, which extends into the interior of the motor 3 and cooperates with the motor 3. A turning handwheel 323 is provided at the outer end of the turning shaft 322; an encoder 324 is provided at the center of the end cover 32, which cooperates with the output shaft 31 of the motor 3.

[0032] The brake 4 is provided with multiple brake discs 21, which are respectively fixed at both ends and the top of the frame 1. The multiple brakes 4 are used to brake the brake discs 21. Specifically, brake ports 13 are provided at both ends and the top of the frame 1, and the brake 4 passes through the brake ports 13 to brake the brake discs 21.

[0033] By arranging the brakes 4 at both ends and the top of the frame 1, multiple positions of the brake disc 21 can be braked simultaneously to form a stable braking structure, thereby effectively improving the stability and safety of the traction machine braking.

[0034] The above are only specific application examples of the present utility model and do not constitute any limitation to the protection scope of the present utility model; any technical solutions formed by equivalent transformation or equivalent replacement fall within the scope of protection of the present utility model.

Claims

1. An elevator traction machine with a stable braking structure, characterized in that: Include A frame (1), wherein a cavity structure (11) is provided on the frame (1), and a support frame (12) is fixedly provided on the front side of the frame (1); A traction wheel (2), wherein a brake disc (21) is integrally formed on the traction wheel (2), wherein the diameter of the brake disc (21) is larger than the diameter of the traction wheel (2), and the brake disc (21) is located in the cavity structure (11) of the frame (1); a planetary reduction assembly (22) is fixedly provided inside the traction wheel (2), wherein the planetary reduction assembly (22) is used to drive the traction wheel (2) to rotate, wherein the planetary reduction assembly (22) has an input shaft (221), and a rotating shaft (222) is fixedly provided on the outside of the planetary reduction assembly (22), wherein the rotating shaft (222) is rotatably matched with the support frame (12); a motor (3), the motor (3) being mounted on a side of the frame (1) away from the traction wheel (2), the motor (3) and the frame (1) being an integral structure, the output shaft (31) of the motor (3) being connected and fixed to the input shaft (221) of the planetary reduction assembly (22), and the motor (3) being used to drive the planetary reduction assembly (22); A brake (4) is provided with a plurality of brake discs (21) respectively fixedly provided at both ends and the top of the frame (1), and the plurality of brakes (4) are used to brake the brake discs (21).

2. The elevator traction machine with a stable braking structure according to claim 1, characterized in that: Braking openings (13) are provided at both ends and the top of the frame (1), and the brake (4) passes through the braking openings (13) to brake the brake disc (21).

3. The elevator traction machine with a stable braking structure according to claim 1, characterized in that: A first bearing (121) is provided on the support frame (12), and the rotating shaft (222) and the support frame (12) are rotationally matched via the first bearing (121).

4. The elevator traction machine with a stable braking structure according to claim 1, characterized in that: An end cover (32) is fixedly provided on the outside of the motor (3), a second bearing (321) is provided on the end cover (32), and the output shaft (31) of the motor (3) and the end cover (32) are rotatably engaged via the second bearing (321); a junction box (33) is provided on the top of the motor (3).

5. The elevator traction machine with a stable braking structure according to claim 4, characterized in that: A turning shaft (322) is provided on the end cover (32), the turning shaft (322) extends into the interior of the motor (3) and cooperates with the motor (3), and a turning handwheel (323) is provided at the outer end of the turning shaft (322); an encoder (324) is provided at the center of the end cover (32), and the encoder (324) cooperates with the output shaft (31) of the motor (3).

6. The elevator traction machine with a stable braking structure according to claim 1, characterized in that: A plurality of evenly distributed reinforcing ribs (23) are provided inside the traction wheel (2), and the plurality of reinforcing ribs (23) are integrally formed on the traction wheel (2).

7. The elevator traction machine with a stable braking structure according to claim 1, characterized in that: The frame (1) is provided with a plurality of lifting rings (14).

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