Disc brake mechanism of planetary reduction assembly of elevator traction machine

Abstract

The utility model discloses a disc brake mechanism of a planetary reduction assembly of an elevator traction machine, which relates to the technical field of traction machines and comprises a frame, a motor, a traction wheel, a planetary gear component and a disc brake mechanism body. The rack is of a frame structure, and the traction wheel is installed in the frame structure. The planetary gear assembly is fixedly installed on the inner circumferential wall of the traction wheel and drives the traction wheel. The motor and the disc brake mechanism body are fixedly installed on the two sides of the rack correspondingly. The motor is used for driving the planetary gear assembly. According to the scheme, the disc brake mechanism body and the motor are separately arranged on the two sides of the rack, the structure is simple, the disc brake mechanism body and the motor can be separately mounted and dismounted, the maintenance efficiency and convenience are improved, meanwhile, the brake disc is fixedly mounted on the part, extending out of the rack, of the sun wheel shaft, and the brake disc and the disc brake are separated out of the rack through the end cover; and heat generated during braking of the brake disc and the disc brake can be quickly dissipated, so that the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a disc brake mechanism of a planetary reduction assembly of an elevator traction machine, belonging to the technical field of traction machines. Background Art

[0002] The brake of the traction machine is the braking (brake) equipment of the traction machine. It is a mechanical part that slows down or stops the moving parts in the traction machine. It is mainly divided into drum (hub) brake, disc (disc) brake and plate brake.

[0003] Chinese invention patent application publication number CN109019269A discloses an outer rotor, high-load, high-speed traction machine, which integrates the traction wheel, brake disc and several disc brakes on the machine base and is designed as an integrated structure with the motor. Although this structure reduces the volume of the entire equipment to a certain extent, the overall structure is relatively complex and compact, making equipment maintenance and debugging cumbersome and complicated, and the equipment maintenance efficiency is low. In addition, the traction wheel, brake disc and disc brake are in the same cavity, and the heat generated by the disc brake is not easy to dissipate, resulting in poor heat dissipation efficiency. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a disc brake mechanism for an elevator traction machine planetary reduction assembly.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a disc brake mechanism of a planetary reduction assembly of an elevator traction machine, comprising a frame, a motor, a traction sheave, a planetary gear assembly, and a disc brake mechanism body; the frame is a frame structure, and the traction sheave is mounted in the frame structure; the planetary gear assembly is fixedly mounted on the inner circumferential wall of the traction sheave and drives the traction sheave; the motor and the disc brake mechanism body are respectively fixedly mounted on both sides of the frame, the motor is used to drive the planetary gear assembly, and the disc brake mechanism body is used to brake the planetary gear assembly;

[0006] The planetary gear assembly includes a housing, an inner ring gear, a sun gear, a planet carrier, and a plurality of planetary gears mounted inside the housing; the inner ring gear is fixedly mounted on the housing, the housing is fixedly mounted on the inner circumferential wall of the traction wheel, the plurality of planetary gears are rotatably connected to the planet carrier, both ends of the planet carrier are rotatably engaged with the housing, the plurality of planetary gears are meshed with the sun gear and the inner ring gear, and the sun gear shaft extends from both ends of the sun gear;

[0007] The disc brake mechanism body includes an end cover, a brake disc and multiple disc brakes; the end cover is connected and fixed to the side wall of the frame, and a plurality of mounting seats are provided on the end cover. The multiple disc brakes are fixed to the end cover through the multiple mounting seats. The brake disc is fixed on the sun gear shaft away from the side of the motor, and the brake disc is located on the outside of the end cover. The disc brake brakes the brake disc.

[0008] Preferably, tooth structures are provided on both sides of the sun gear shaft, and one end of the sun gear shaft cooperates with the output shaft of the motor through the tooth structure; a connecting part is provided on the brake disc, and the other end of the sun gear shaft is connected to the connecting part of the brake disc through the tooth structure and fixed by multiple bolts.

[0009] Preferably, the connecting portion is integrally formed at the center of the brake disc.

[0010] Preferably, an opening for the sun gear shaft to pass through is provided at the center of the end cover.

[0011] Preferably, bearings are provided at both ends of the planetary carrier, and both ends of the planetary carrier are rotatably engaged with the casing through the bearings.

[0012] Preferably, the number of the disc brakes is four.

[0013] Preferably, a junction box is provided on the motor.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model provides a disc brake mechanism of an elevator traction machine planetary reduction assembly. The disc brake mechanism body and the motor are separately installed on both sides of the frame, so the structure is simple. The disc brake mechanism body and the motor can be installed and removed separately, which improves maintenance efficiency and convenience. At the same time, the brake disc is fixedly installed on the part of the sun gear shaft extending out of the frame, and the brake disc and the disc brake are separated from the frame by the end cover, so that the heat generated during braking can be quickly dissipated, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0017] Attachment Figure 1 This is a structural schematic diagram of a disc brake mechanism of a planetary reduction assembly of an elevator traction machine according to the present utility model;

[0018] Attachment Figure 2 This is a schematic diagram of the structure of the planetary gear assembly and the traction wheel of the present invention;

[0019] Attachment Figure 3This is a cross-sectional view of a disc brake mechanism of a planetary reduction assembly of an elevator traction machine according to the present utility model;

[0020] Attachment Figure 4 For attachment Figure 3 Enlarged view of point A in the middle;

[0021] Attachment Figure 5 This is a schematic structural diagram of the disc brake mechanism body of the present utility model;

[0022] Attachment Figure 6 This is a structural schematic diagram of the disc brake mechanism body of the present invention from another perspective.

[0023] In the figure: 1. Frame; 2. Motor; 21. Junction box; 3. Traction wheel; 4. Planetary gear assembly; 41. Casing; 42. Ring gear; 43. Sun gear; 431. Sun gear shaft; 4311. Tooth structure; 44. Planet carrier; 45. Planetary gear; 5. Disc brake mechanism body; 51. End cover; 511. Mounting seat; 512. Opening; 52. Brake disc; 521. Connecting part; 53. Disc brake; 6. Bearing. 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 1-2 As shown, the disc brake mechanism of the planetary reduction assembly of the elevator traction machine described in the present invention includes a frame 1, a motor 2, a traction wheel 3, a planetary gear assembly 4 and a disc brake mechanism body 5.

[0026] As attached Figure 3-4 As shown, the frame 1 is a frame structure, and the traction wheel 3 is installed in the frame structure; the planetary gear assembly 4 is fixedly mounted on the inner circumferential wall of the traction wheel 3 and drives the traction wheel 3; specifically, the planetary gear assembly 4 includes a casing 41 and an inner ring gear 42, a sun gear 43, a planet carrier 44 and a plurality of planetary gears 45 installed inside the casing 41; the inner ring gear 42 is fixedly mounted on the casing 41, and the casing 41 is fixedly mounted on the inner circumferential wall of the traction wheel 3, and the plurality of planetary gears 45 are rotatably connected to the planet carrier 44, and both ends of the planet carrier 44 are rotatably matched with the casing 41. In this embodiment, both ends of the planet carrier 44 are rotatably matched with the casing 41 through bearings 6, and the plurality of planetary gears 45 are meshed with the sun gear 43 and the inner ring gear 42.

[0027] The motor 2 and the disc brake mechanism body 5 are respectively fixedly mounted on both sides of the frame 1. The motor 2 is used to drive the planetary gear assembly 4, and the disc brake mechanism body 5 is used to brake the planetary gear assembly 4. In this embodiment, sun gear shafts 431 extend from both ends of the sun gear 43. Tooth structures 4311 are provided on both sides of the sun gear shaft 431. One end of the sun gear shaft 431 is fixedly matched with the output shaft of the motor 2 through the tooth structure 4311 to drive the sun gear shaft 431 to rotate.

[0028] As attached Figure 5-6 As shown, the disc brake mechanism body 5 includes an end cover 51, a brake disc 52 and a plurality of disc brakes 53; the end cover 51 is fixed to the side wall of the frame 1 by bolt connection, and a plurality of mounting seats 511 are provided on the end cover 51, and the plurality of disc brakes 53 are fixed to the end cover 51 through the plurality of mounting seats 511. In this embodiment, the number of disc brakes 53 is four, which can also be increased or decreased according to actual conditions during use.

[0029] The brake disc 52 is fixed on the sun gear shaft 431 on the side away from the motor 2, wherein the sun gear shaft 431 on the side away from the motor 2 passes through the end cover 51 and is fixed to the brake disc 52, and an opening 512 for the sun gear shaft 431 to pass through is opened at the center of the end cover 51, and the brake disc 52 is located on the outside of the end cover 51, and the disc brake 53 brakes the brake disc 52; in this embodiment, a connecting portion 521 is provided on the brake disc 52, and the connecting portion 521 is integrally formed at the center of the brake disc 52, and the end of the sun gear 43 shaft away from the motor 2 is connected to the connecting portion 521 of the brake disc 52 through a tooth structure 4311, and is fixed by multiple bolts to ensure a stable connection between the sun gear 43 shaft and the brake disc 52.

[0030] The motor 2 is provided with a junction box 21 , which is integrally machined on the motor 2 .

[0031] Compared with the prior art, the present application separates the disc brake mechanism body 5 and the motor 2 on both sides of the frame 1, with a simple structure. The disc brake mechanism body 5 and the motor 2 can be installed and disassembled separately, which improves maintenance efficiency and convenience. At the same time, the brake disc 52 is fixedly installed on the part of the sun gear shaft 431 extending out of the frame 1, and the brake disc 52 and the disc brake 53 are separated from the frame 1 by the end cover 51, so that the heat generated by the brake disc 52 and the disc brake 53 during braking can be quickly dissipated, thereby improving the heat dissipation efficiency.

[0032] 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. A disc brake mechanism for an elevator traction machine planetary reduction assembly, characterized in that: The invention comprises a frame (1), a motor (2), a traction wheel (3), a planetary gear assembly (4) and a disc brake mechanism body (5); the frame (1) is a frame structure, and the traction wheel (3) is installed in the frame structure; the planetary gear assembly (4) is fixedly installed on the inner peripheral wall of the traction wheel (3) and drives the traction wheel (3); the motor (2) and the disc brake mechanism body (5) are respectively fixedly installed on both sides of the frame (1), the motor (2) is used to drive the planetary gear assembly (4), and the disc brake mechanism body (5) is used to brake the planetary gear assembly (4); The planetary gear assembly (4) includes a housing (41) and an inner gear ring (42), a sun gear (43), a planet carrier (44), and a plurality of planetary gears (45) installed inside the housing (41); the inner gear ring (42) is fixedly installed on the housing (41), the housing (41) is fixedly installed on the inner peripheral wall of the traction wheel (3), the plurality of planetary gears (45) are rotatably connected to the planet carrier (44), both ends of the planet carrier (44) are rotatably matched with the housing (41), the plurality of planetary gears (45) are meshed with the sun gear (43) and the inner gear ring (42), and both ends of the sun gear (43) extend out of a sun gear shaft (431); The disc brake mechanism body (5) comprises an end cover (51), a brake disc (52) and a plurality of disc brakes (53); the end cover (51) is connected and fixed to the side wall of the frame (1); a plurality of mounting seats (511) are provided on the end cover (51); the plurality of disc brakes (53) are fixed to the end cover (51) via the plurality of mounting seats (511); the brake disc (52) is fixed to the sun gear shaft (431) on the side away from the motor (2), and the brake disc (52) is located outside the end cover (51); and the disc brake (53) brakes the brake disc (52).

2. The disc brake mechanism of the planetary reduction assembly of an elevator traction machine according to claim 1, characterized in that: Both sides of the sun gear shaft (431) are provided with toothed structures (4311), and one end of the sun gear shaft (431) is matched with the output shaft of the motor (2) through the toothed structure (4311); a connecting portion (521) is provided on the brake disc (52), and the other end of the sun gear shaft (431) is connected to the connecting portion (521) of the brake disc (52) through the toothed structure (4311) and fixed by a plurality of bolts.

3. The disc brake mechanism of the planetary reduction assembly of an elevator traction machine according to claim 2, characterized in that: The connecting portion (521) is integrally formed at the center of the brake disc (52).

4. The disc brake mechanism of the planetary reduction assembly of an elevator traction machine according to claim 2, characterized in that: An opening (512) for the sun gear shaft (431) to pass through is provided at the center of the end cover (51).

5. The disc brake mechanism of the planetary reduction assembly of an elevator traction machine according to claim 1, characterized in that: Both ends of the planetary carrier (44) are provided with bearings (6), and both ends of the planetary carrier (44) are rotatably matched with the casing (41) through the bearings (6).

6. The disc brake mechanism of the planetary reduction assembly of an elevator traction machine according to claim 1, characterized in that: The number of the disc brakes (53) is four.

7. The disc brake mechanism of the planetary reduction assembly of an elevator traction machine according to claim 1, characterized in that: A junction box (21) is provided on the motor (2).

Images