Efficient planetary permanent magnet traction machine for modified elevator and goods elevator
By setting brake wheels at both ends of the traction sheave and brakes at both ends of the frame, combined with a planetary reduction mechanism and a traction chuck, the problem of unstable braking in traditional traction mechanisms is solved, achieving efficient and stable braking performance.
Patent Information
- Application Number
- CN202423063043.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Traditional single-sided braking traction machines are prone to braking instability under high-intensity, high-frequency operating conditions, especially when the car is fully loaded or nearly fully loaded, the uneven force on the brake wheel causes swaying.
The high-efficiency planetary permanent magnet traction machine adopts brake wheels at both ends of the traction wheel and a set of brakes at both ends of the frame to brake the brake wheels evenly. Combined with the planetary reduction mechanism and traction chuck, the driving force is balanced to ensure that the brake wheels are subjected to uniform force.
It effectively prevents brake wheel sway, improves braking stability and traction machine operation stability, and enhances the braking effect of the traction machine under high-frequency load changes.
Smart Images
Figure CN223592202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of high-efficiency planetary permanent-magnetic traction machine for transforming elevator and freight elevator, belong to traction machine technical field. BACKGROUND
[0002] With the acceleration of urbanization, high-rise buildings are emerging, the use frequency and load requirement of elevator are increasing. The traditional single-side braking traction machine gradually exposes the problem of unstable braking under this high-strength, high-frequency operating condition. When single-side braking, the brake shoe only applies braking force to the brake wheel from one side, which makes the brake wheel prone to uneven stress during the stress process. During the frequent start-stop process of the elevator, especially when the car is fully loaded or close to full load, the uneven stress is further exacerbated due to the large unbalanced force between the car and the counterweight, resulting in the brake wheel to produce yaw when braking. SUMMARY
[0003] The utility model aims at overcoming the defects of prior art and providing a kind of high-efficiency planetary permanent-magnetic traction machine for transforming elevator and freight elevator.
[0004] To achieve the above object, the utility model adopts the technical scheme: a kind of high-efficiency planetary permanent-magnetic traction machine for transforming elevator and freight elevator, including rack, traction wheel, drive motor and two groups of brakes;The inside of the rack is a cavity structure, the traction wheel is installed in the cavity structure, the drive motor is connected and fixed at one end of rack;
[0005] The traction wheel is internally hollow structure, and a planetary reduction mechanism is arranged on the inner wall of the side of the traction wheel close to the drive motor, the drive motor is used to drive the planetary reduction mechanism to rotate, and the planetary reduction mechanism drives the traction wheel to rotate when rotating;End cover is fixedly arranged at one end of the rack relative to the drive motor, drive shaft is fixedly arranged on one side of the planetary reduction mechanism relative to the drive motor, and the drive shaft extends to the end cover and rotates with the end cover.
[0006] Both ends of the traction wheel are integrally formed with brake wheels, and two groups of brakes are symmetrically arranged at both ends of the rack, and are used to brake the brake wheels at both ends of the traction wheel.
[0007] Preferably, the number of each group of brakes is three, and the three brakes are fixed to the top and both sides of the rack;The top and both sides of both ends of the rack are provided with openings for the brakes to pass through.
[0008] Preferably, a traction chuck is fixedly arranged on the inner wall of one side of the traction wheel relative to the planetary reduction mechanism, the drive shaft passes through the center of the traction chuck, and the drive shaft and the traction chuck are interference fit.
[0009] Preferably, the driving motor has an output shaft, the planetary reduction mechanism has an input shaft, the output shaft of the driving motor extends into the frame and is fixedly connected with the input shaft of the planetary reduction mechanism, and the frame is provided with a first bearing, and the output shaft of the driving motor is rotationally fitted with the frame through the first bearing.
[0010] Preferably, the driving motor is provided with an encoder, and the encoder is fitted with the output shaft of the driving motor.
[0011] Preferably, the end cover is provided with a second bearing, the driving shaft is rotationally fitted with the end cover through the second bearing, and a bearing cover is fixedly arranged at the center of the outer side of the end cover.
[0012] Preferably, the frame is fixedly provided with a rope blocking rod on each side, and the rope blocking rod is fitted with the traction wheel.
[0013] Preferably, the frame and the driving motor are each fixedly provided with a plurality of lifting rings.
[0014] Thanks to the technical scheme, the utility model has the following advantages compared with the prior art:
[0015] 1. The utility model cancels the structure of traditional traction machine single side braking, sets brake wheel at both ends of the traction wheel, sets a set of brake at both ends of the frame respectively, brakes two brake wheels respectively, makes two brake wheels receive same brake force when braking, guarantees that two brake wheels are forced evenly, thereby effectively prevents brake wheel from producing deflection when braking, and improves braking stability.
[0016] 2. The traction chuck is arranged on one side of the traction wheel relative to the planetary reduction mechanism, the driving force of the planetary reduction mechanism can be balanced, and the traction wheel runs more stably. BRIEF DESCRIPTION OF DRAWINGS
[0017] The technical scheme of the utility model will be further described below with reference to the drawings:
[0018] ATTACHMENT Figure 1 The utility model discloses a high-efficiency planetary permanent magnet traction machine for transforming elevator and freight elevator Figure 1 ;
[0019] ATTACHMENT Figure 2 The utility model discloses a high-efficiency planetary permanent magnet traction machine for transforming elevator and freight elevator Figure 2 ;
[0020] ATTACHMENT Figure 3 The utility model discloses a high-efficiency planetary permanent magnet traction machine for transforming elevator and freight elevator
[0021] ATTACHMENT Figure 4The utility model discloses a structure schematic diagram of rack.
[0022] Attached Figure 5 The utility model discloses a structure schematic diagram of traction sheave.
[0023] In the drawing: 1, rack;11, end cover;111, second bearing;112, bearing outer cover;12, opening;13, first bearing;14, rope blocking rod;2, traction sheave;21, planetary reduction mechanism;211, drive shaft;212, input shaft;22, brake sheave;23, traction chuck;3, drive motor;31, output shaft;32, encoder;4, brake;5, lifting ring. Specific embodiments
[0024] The utility model makes further detailed explanation in combination with the specific embodiments and the drawing.
[0025] As shown in attached Figures 1-2 The utility model discloses a high -efficient planetary permanent magnet traction machine for the reform of elevator and goods elevator, including rack 1, traction sheave 2, drive motor 3 and two groups of brake 4, the inside of rack 1 is cavity structure, and traction sheave 2 is installed in the cavity structure, and drive motor 3 is connected and fixed at one end of rack 1.
[0026] As shown in attached Figure 3 Traction sheave 2 is hollow structure, and planetary reduction mechanism 21 is arranged on the inner wall of the side close to drive motor 3 of traction sheave 2, drive motor 3 is used to drive planetary reduction mechanism 21 to rotate, and traction sheave 2 is driven to rotate when planetary reduction mechanism 21 rotates, and specifically, drive motor 3 has output shaft 31, and planetary reduction mechanism 21 has input shaft 212, and the output shaft 31 of drive motor 3 extends into rack 1 and is connected and fixed with the input shaft 212 of planetary reduction mechanism 21, wherein, first bearing 13 is arranged on rack 1, and the output shaft 31 of drive motor 3 is rotatably connected with rack 1 through first bearing 13.
[0027] When working, the output shaft 31 of drive motor 3 rotates, power is transmitted to the input shaft 212 of planetary reduction mechanism 21, and planetary reduction mechanism 21 is driven to rotate, and then power is transmitted to traction sheave 2, so as to reduce the rotating speed of traction sheave 2 and increase the torque.
[0028] In the embodiment, encoder 32 is arranged on drive motor 3, and encoder 32 is matched with the output shaft 31 of drive motor 3;Encoder 32 is used to accurately detect the rotating speed of drive motor 3.
[0029] The end cover 11 is fixedly arranged at one end of the frame 1 relative to the driving motor 3, the driving shaft 211 is fixedly arranged at one side of the planetary reduction mechanism 21 relative to the driving motor 3, the driving shaft 211 extends to the end cover 11 and is rotationally matched with the end cover 11; in this embodiment, the second bearing 111 is arranged on the end cover 11, the driving shaft 211 is rotationally matched with the end cover 11 through the second bearing 111; the bearing outer cover 112 is fixedly arranged at the center of the outer side of the end cover 11, the end cover 11 is sealed by the bearing outer cover 112 to prevent dust from entering the second bearing 111 and affecting the rotation effect.
[0030] The traction chuck 23 is fixedly arranged on the inner wall at one side of the planetary reduction mechanism 21 relative to the traction wheel 2, the driving shaft 211 passes through the center of the traction chuck 23 and is interference-fitted with the traction chuck 23; it can be understood that the planetary reduction mechanism 21 is installed at one side of the traction wheel 2, the traction wheel 2 is prone to deflection when driving the traction wheel 2, the traction chuck 23 is arranged at one side of the traction wheel 2 relative to the planetary reduction mechanism 21, the driving force of the planetary reduction mechanism 21 can be balanced, and the traction wheel 2 runs more stably.
[0031] As shown in the accompanying drawings, Figures 3-5 Both ends of the traction wheel 2 are integrally formed with the brake wheels 22, two groups of brakes 4 are symmetrically arranged at both ends of the frame 1, and the two groups of brakes 4 are respectively used to brake the brake wheels 22 at both ends of the traction wheel 2, the brake wheels 22 are arranged at both ends of the traction wheel 2, and one group of brakes 4 is arranged at each end of the frame 1 to brake the two brake wheels 22 respectively, so that the two brake wheels 22 receive the same braking force when braking, the force received by the two brake wheels 22 is uniform, thereby effectively preventing the brake wheels 22 from deflection when braking, and the braking stability is improved.
[0032] In this embodiment, the number of each group of brakes 4 is three, and the three brakes 4 are respectively fixed to the top and both sides of the frame 1; the top and both sides of both ends of the frame 1 are provided with openings 12 for the brakes 4 to pass through; during braking, the three brakes 4 can lock the same brake wheel 22 in three directions, so that the braking force received by the brake wheel 22 in the circumferential direction is more uniform, thereby further improving the braking stability.
[0033] The rope blocking rods 14 are fixedly arranged at both sides of the frame 1, and the rope blocking rods 14 cooperate with the traction wheel 2; in actual use, the traction ropes will be wound on the traction wheel 2, the arrangement of the rope blocking rods 14 can prevent the traction ropes from coming off the traction wheel 2 and avoid the phenomenon of coming off the groove, and can guide the traction ropes to arrange the traction ropes on the traction wheel 2 in order.
[0034] A plurality of lifting rings 5 are fixedly arranged on the frame 1 and the driving motor 3, so as to facilitate hoisting of the entire traction machine.
[0035] The above is only a specific application example of the present application, and does not constitute any limitation on the protection scope of the present application; any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.
Claims
1. A high efficiency planetary permanent magnet traction machine for retrofitting elevators and escalators, characterized by: The utility model relates to a kind of electric hoist, including rack (1), traction wheel (2), drive motor (3) and two groups of brake (4);The inside of the rack (1) is cavity structure, the traction wheel (2) is installed in this cavity structure, the drive motor (3) is connected and fixed in the one end of rack (1); The traction wheel (2) is hollow structure inside, and the inner wall of the side of traction wheel (2) close to drive motor (3) is provided with planetary reducer mechanism (21), the drive motor (3) is used to drive planetary reducer mechanism (21) rotation, and planetary reducer mechanism (21) rotates when driving traction wheel (2) rotation;The one end of the rack (1) is fixedly provided with end cover (11) relative to drive motor (3), and the side of planetary reducer mechanism (21) is fixedly provided with driving shaft (211) relative to drive motor (3), and the driving shaft (211) extends to end cover (11), and is rotationally cooperated with end cover (11); The both ends of the traction wheel (2) are integrally formed with brake wheel (22), and two groups of brake (4) are symmetrically arranged at the both ends of the rack (1), and two groups of brake (4) are used for braking brake wheel (22) at the both ends of traction wheel (2).
2. A high efficiency planetary permanent magnet traction machine for modernization of elevators and escalators as claimed in claim 1 wherein: The number of each group of brake (4) is three, and the top and two sides of the rack (1) are fixed with three brake (4) respectively;The top and two sides of the both ends of the rack (1) are provided with opening (12) for brake (4) to pass through.
3. A high efficiency planetary permanent magnet traction machine for modernization of elevators and escalators as claimed in claim 1 wherein: The inner wall of the side of traction wheel (2) relative to planetary reducer mechanism (21) is fixedly provided with traction chuck (23), and the center of driving shaft (211) passes through traction chuck (23), and is interference fit with traction chuck (23).
4. A high efficiency planetary permanent magnet traction machine for modernization of elevators and escalators as claimed in claim 1 wherein: The drive motor (3) has output shaft (31), and planetary reducer mechanism (21) has input shaft (212), the output shaft (31) of drive motor (3) extends into the rack (1), and is connected and fixed with the input shaft (212) of planetary reducer mechanism (21), and the first bearing (13) is arranged on the rack (1), and the output shaft (31) of drive motor (3) is rotationally cooperated with the rack (1) through the first bearing (13).
5. A high efficiency planetary permanent magnet traction machine for modernization of elevators and escalators as claimed in claim 4 wherein: The drive motor (3) is provided with encoder (32), and the encoder (32) is cooperated with the output shaft (31) of drive motor (3).
6. A high efficiency planetary permanent magnet traction machine for retrofitting in elevators and goods lifts as claimed in claim 1 wherein: The second bearing (111) is arranged on the end cover (11), the driving shaft (211) is rotationally cooperated with the end cover (11) through the second bearing (111), and the bearing outer cover (112) is fixedly arranged at the center of the outside of end cover (11).
7. A high efficiency planetary permanent magnet traction machine for modernization of elevators and escalators as claimed in claim 1 wherein: The both sides of the rack (1) are fixedly provided with rope blocking rod (14), and the rope blocking rod (14) is cooperated with the traction wheel (2).
8. A high efficiency planetary permanent magnet traction machine for modernization of elevators and escalators as claimed in claim 1 wherein: The rack (1) and drive motor (3) are fixedly provided with a plurality of lifting rings (5).