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Traction system of freight elevator without machine room

A traction system and machine room-less technology, applied in the field of elevator traction, can solve the problems of large power consumption, increased user investment, and large power consumption, so as to improve the service life and overcome the effect of slow start

Inactive Publication Date: 2017-07-25
苏州菱奥电梯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for freight elevators, especially large-tonnage freight elevators, there are still defects in the current traction system design: (1) The 2:1 traction design makes the main shaft load of the traction sheave large, and the drive rotation of the traction machine The torque is large, and the power consumption is relatively large, which is not in line with the current development trend of energy conservation and environmental protection; (2) the asynchronous motor is used to drive, and the power consumption is relatively large, usually 40% more than the synchronous motor; (3) due to Asynchronous motors are used, so it is necessary to build a machine room, increase the investment of users, and weaken the market competitiveness of elevator products
[0004] The above-mentioned elevators basically have only one traction system, which leads to the unstable operation of the freight elevator, and the problems of rapid operation and emergency motor setting cannot be solved.

Method used

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  • Traction system of freight elevator without machine room
  • Traction system of freight elevator without machine room
  • Traction system of freight elevator without machine room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one, such as figure 1 and figure 2 The traction system of the machine-room-less freight elevator shown includes a shaft 1 and a car 2 arranged in the shaft 1. The upper end of the shaft 1 is left to accommodate the elevator drive system 3; the left and right sides of the shaft 1 are left with traction auxiliary passages 4 , the traction auxiliary channel 4 is provided with a traction block 9 that slides on the inner wall, and the elevator drive system 3 passes through the double-drive car 2 .

[0026] Elevator drive system 3 comprises a group of upper elevator drive system 3a, and last elevator drive system 3a comprises No. 1 and No. 2 decelerating motors 5a, 5b arranged on the shaft 1 front wall or rear wall left and right, and No. 1 and No. 2 decelerating motors 5a, 5b 5b is connected to the No. 1 and No. 2 rotating shafts 6a and 6b whose free ends are fixed on the rear wall or the front wall. Four upper traction wheels 7a are arranged on the No. 1 and No...

Embodiment 2

[0027] Embodiment two, such as image 3 and Figure 4 The traction system of the machine-room-less freight elevator shown includes a shaft 1 and a car 2 arranged in the shaft 1. The upper end of the shaft 1 is left to accommodate the elevator drive system 3; the left and right sides of the shaft 1 are left with traction auxiliary passages 4 The traction auxiliary channel 4 is provided with a traction block 9 that slides on the inner wall, and the elevator drive system 3 acts on the car 2 through a double-drive plus auxiliary balance system.

[0028] Elevator drive system 3 comprises a group of upper elevator drive system 3a, and last elevator drive system 3a comprises No. 1 and No. 2 decelerating motors 5a, 5b arranged on the shaft 1 front wall or rear wall left and right, and No. 1 and No. 2 decelerating motors 5a, 5b 5b is connected to the No. 1 and No. 2 rotating shafts 6a and 6b whose free ends are fixed on the rear wall or the front wall. Four upper traction wheels 7a ar...

Embodiment 3

[0031] Embodiment three, such as Figure 5 and Image 6 The traction system of the machine-room-less freight elevator shown includes a shaft 1 and a car 2 arranged in the shaft 1. The upper and lower ends of the shaft 1 are left to accommodate the elevator drive system 3; the left and right sides of the shaft 1 are left with auxiliary traction passages 4. The traction auxiliary channel 4 is provided with a traction block 9 sliding on the inner wall, and the elevator drive system 3 acts on the car 2 through the four-wheel drive.

[0032] Elevator drive system 3 comprises a group of upper elevator drive system 3a, and last elevator drive system 3a comprises No. 1 and No. 2 decelerating motors 5a, 5b arranged on the shaft 1 front wall or rear wall left and right, and No. 1 and No. 2 decelerating motors 5a, 5b 5b is connected with the No. 1 and No. 2 rotating shafts 6a, 6b whose free ends are fixed on the rear wall or the front wall. Four upper traction wheels 7a are arranged on ...

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Abstract

The traction system of a machine-room-less freight elevator relates to the technical field of elevator traction, including a well and a car arranged in the well, and the upper and / or lower ends of the well are left to accommodate the elevator drive system; the left and right sides of the well are A traction auxiliary channel is left on the side, and a traction block sliding on the inner wall is arranged in the traction auxiliary channel. The elevator drive system uses two motors or four motors to act on the car to realize double drive or four drive. drive. The purpose of the present invention is to provide a cargo elevator with stable running, rapid running function and emergency motor setting.

Description

technical field [0001] The invention relates to the technical field of elevator traction, in particular to the traction system of a machine room-less freight elevator. Background technique [0002] Traditional elevators are equipped with machine rooms. With the advancement of technology and the miniaturization of traction machines and electrical components, people are less and less interested in elevator machine rooms. The machine room-less elevator is relative to the machine room elevator, that is to say, the machine room is omitted, and the control panel, traction machine, speed limiter, etc. in the original machine room are moved to the hoistway, etc., or replaced by other technologies. However, for freight elevators, especially large-tonnage freight elevators, there are still defects in the current traction system design: (1) The 2:1 traction design makes the main shaft load of the traction sheave large, and the drive rotation of the traction machine The torque is large...

Claims

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Application Information

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IPC IPC(8): B66B11/04
CPCB66B11/0438B66B11/0035
Inventor 胡亮亮钱国飞钱飞云
Owner 苏州菱奥电梯有限公司