CN201151604Y

CN201151604Y - Escalator

Info

Publication number: CN201151604Y
Application number: CNU2007200090906U
Authority: CN
Inventors: 王志涛; 夏应贵; 李建军; 金俊伟; 刘成辉; 于铭生; 葛鸿斌; 陈海波; 娄生; 林万里
Original assignee: XJ Elevator Co Ltd
Current assignee: XJ Elevator Co Ltd
Priority date: 2007-12-10
Filing date: 2007-12-10
Publication date: 2008-11-19
Anticipated expiration: 2017-12-10

Abstract

The utility model discloses an automatic escalator. A permanent-magnet synchro towing machine is taken as a drive part, a permanent-magnet synchro motor and a gearing down structure are fixed on the towing seat of the towing machine; the gearing down structure is a first-order gear drive structure; wherein, the high-speed gear shaft is the motor shaft of the permanent-magnet motor, and the low-speed gear shaft is the output shaft of the permanent-magnet escalator towing machine; the high-speed gear shaft and the low-speed gear shaft are connected by a gear; a chain wheel is fixed on the output shaft, and the chain wheel is connected with the big chain wheel on the escalator driving unit; the towing seat of the permanent-magnet synchro towing machine applied on the automatic escalator is divided into two parts. The operating efficiency of the novel automatic escalator provided by the utility model is greatly improved, and the working efficiency is generally 0.87-0.9; compared with the traditional escalators, the working efficiency is improved by 40-50%.

Description

Escalator

Technical field

The utility model relates to a kind of staircase, particularly a kind of escalator.

Background technology

Traditional escalator, drive system are to adopt asynchronous dynamo by worm and gear, chain, drive escalator operation, and efficient is lower.We know that in mechanical drive, though the worm and gear driving system has the big advantage of transmitting ratio, its efficient is low, energy consumption big, move shortcomings such as noise is big can't overcome.Generally speaking, the driving efficiency of worm gear, worm screw has 30% electric energy to be wasted as the waste of power form between 67～78% approximately.Waste of power increases considerably the elevator over-the-road expense.

The utility model content

The purpose of this utility model is: design a kind of escalator, its operation energy consumption is reduced, service efficiency improves, and the operation noise when reducing the staircase operation.

The utility model adopts following structure to realize above-mentioned purpose, improve the drive part of escalator, adopt permanent magnetic synchronous traction machine as drive part, this towing machine is to be fixed with permagnetic synchronous motor and gear reduction drive mechanism on machine bed, the gear reduction drive mechanism is the one-level gear transmission structure, wherein high speed gear shaft is the motor shaft of permagnetic synchronous motor, the low speed gear axle is the output shaft of permanent magnetic synchronous arm rest lift traction machine, high speed gear shaft is connected by gear with the low speed gear axle, be fixed with sprocket wheel on the output shaft, sprocket wheel links to each other with hinge wheel on the staircase actuating device by chain; The towing machine support of the permanent magnetic synchronous traction machine that uses on the escalator is divided in two parts, aft section is as the casing of permagnetic synchronous motor, the motor bonnet is attached thereto, the permagnetic synchronous motor part is housed in the shell, the previous section of towing machine support is a gear box body, the high speed gear shaft end by bearings on the end cap of deceleration box, the low speed gear axle also passes through the bearings at two ends on towing machine support and drop-gear box end cap, the drop-gear box end cap is fixed on the machine bed, the low speed gear shaft end stretches out the output shaft of a drop-gear box end cap part as towing machine, is fixed with sprocket wheel on the output shaft; The high speed gear shaft of permanent magnetic synchronous traction machine is provided with cylindric spiral gear, and with the low speed gear axle on low speed big gear wheel engagement.

Adopt as above structure,, drive the step operation, saved traditional worm and gear type of drive, the operating efficiency of escalator is significantly improved by gear transmission, sprocket wheel chain gear; And, the slow speed of revolution large torque and high-efficient rate of permagnetic synchronous motor and the high efficiency of slant gear transmission have been made full use of owing to adopt permagnetic synchronous motor.Therefore can under lower-speed state, export very big torque, not need the required torque of escalator that just can get a promotion of very high transmitting ratio; Its in the course of the work magnetic field be to produce by permanent magnet, saved the exciting current in the asynchronous motor working process, motor power factor approaches 1.Therefore electrical efficiency is than the asynchronous motor height, and because permagnetic synchronous motor also can be exported very big torque under lower-speed state, so its efficient basically identical under each working condition.Therefore, the efficient of permagnetic synchronous motor can reach more than 0.9.This utility model escalator, work efficiency generally can reach 0.87～0.9.Compare with traditional escalator, efficient improves 40～50%.

Description of drawings

Fig. 1 is the graph of a relation of escalator;

Fig. 2 is the drive division component;

Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment

Fig. 1 is the scheme drawing of escalator, and wherein towing machine 15 partial fixings are on the capable frame of staircase, and sprocket wheel 10 connects hinge wheel 17 by chain 16, drives the staircase operation then.

Fig. 2 is the drive part of the escalator after improving, adopt permanent magnetic synchronous traction machine as drive part, this towing machine is to be fixed with permagnetic synchronous motor and gear reduction drive mechanism on machine bed, the gear reduction drive mechanism is the one-level gear transmission structure, wherein high speed gear shaft 3 is the motor shaft of permagnetic synchronous motor, low speed gear axle 12 is the output shaft of permanent magnetic synchronous arm rest lift traction machine, high speed gear shaft 3 and low speed gear axle 12 are connected by gear, be fixed with sprocket wheel 10 on the output shaft 12, sprocket wheel 10 links to each other with hinge wheel 17 on the staircase by chain 16, drives the operation of staircase with this; The towing machine support 6 of the permanent magnetic synchronous traction machine that uses on the escalator is divided in two parts, aft section 4 is as the casing of permagnetic synchronous motor, motor bonnet 1 is attached thereto, the permagnetic synchronous motor part is housed in the shell, 2 is motor stator, 5 is rotor, the previous section 7 of towing machine support is a gear box body, high speed gear shaft 3 ends are supported on the end cap 13 of deceleration box by bearing 9, low speed gear axle 12 also is supported on towing machine support 6 and the drop-gear box end cap 13 by the bearing 11 at two ends, drop-gear box end cap 13 is fixed on the machine bed, low speed gear axle 12 ends stretch out the output shaft of drop-gear box end cap 13 parts as towing machine, are fixed with sprocket wheel 10 on the output shaft; The high speed gear shaft 3 of permanent magnetic synchronous traction machine is provided with cylindric spiral gear 8, and with low speed gear axle 12 on low speed big gear wheel 14 engagement.

This kind energy saving escalator can also utilize ripe converter technique, utilize microcomputer control system, staircase is sent instruction, the automatic startup of staircase moved by command speed when the someone took, staircase was with less than the operation of certain command speed when nobody took, thereby reached energy-conservation purpose.

Owing to adopt permanent magnetic synchronous traction machine, can well supportingly use with the elevator special converter, can also realize the stepless change of staircase, thereby it is energy-conservation to reach actv..

Claims

1, a kind of escalator, comprise running part, the staircase part, brake portion, it is characterized in that: drive part adopts permanent magnetic synchronous traction machine, this towing machine is to be fixed with permagnetic synchronous motor and gear reduction drive mechanism on machine bed, the gear reduction drive mechanism is the one-level gear transmission structure, wherein high speed gear shaft is the motor shaft of permagnetic synchronous motor, the low speed gear axle is the output shaft of permanent magnetic synchronous arm rest lift traction machine, high speed gear shaft is connected by gear with the low speed gear axle, be fixed with sprocket wheel on the output shaft, sprocket wheel links to each other with hinge wheel on the staircase actuating device by chain.

2, escalator according to claim 1, it is characterized in that: the towing machine support of the permanent magnetic synchronous traction machine that uses on the escalator is divided in two parts, aft section is as the casing of permagnetic synchronous motor, the motor bonnet is attached thereto, the permagnetic synchronous motor part is housed in the shell, the previous section of towing machine support is a gear box body, the high speed gear shaft end by bearings on the end cap of deceleration box, the low speed gear axle also passes through the bearings at two ends on towing machine support and drop-gear box end cap, the drop-gear box end cap is fixed on the machine bed, the low speed gear shaft end stretches out the output shaft of a drop-gear box end cap part as towing machine, is fixed with sprocket wheel on the output shaft.

3, escalator according to claim 1 and 2 is characterized in that: the high speed gear shaft of permanent magnetic synchronous traction machine is provided with cylindric spiral gear, and with the low speed gear axle on low speed big gear wheel engagement.

4, escalator according to claim 3 is characterized in that: cylindric spiral gear and with low speed big gear wheel transmitting ratio on the low speed gear axle be 1: 4.