Escalator or moving pavement driving device

Abstract

The invention discloses an escalator or automatic sidewalk driving device, comprising a permanent-magnetic synchronous motor and a transmission device; the transmission device comprises a primary gearbox and a secondary gearbox; an output shaft of the secondary gearbox is axially connected with a main transmission shaft. The secondary gearbox adopts a crossing engagement type of a spiral bevel gear pair structure and transmits the output torque of the primary gearbox. The solar wheel shaft of the primary planetary gearbox has the same axis as the central shaft of a driving motor; the output axis line of the secondary gearbox is vertical to the axis line of the solar wheel shaft, so as to lead the primary planetary gearbox and the secondary gearbox to be installed, debugged and dismounted in a fission way and lead the driving device to be connected at the end side of the main transmission shaft of a step chain wheel. The escalator driving device of the invention adopts a two-step full-gear transmission structure, has little mechanical abrasion, long service life and high transmission efficiency, and realizes the effects of escalator driving multi-item efficacy energy saving.

Description

technical field [0001] The invention relates to a driving device, in particular to an escalator or moving walk driving device. Background technique [0002] The traditional escalator or moving walkway driving device is generally composed of a motor part and a transmission device, and the transmission device is composed of a worm gear reduction mechanism and a secondary sprocket reduction mechanism. [0003] This reduction transmission device is a worm and worm gear structure that adopts friction transmission, and its driving motor is an asynchronous motor. Due to the limitation of the output torque, it must rely on the secondary sprocket to decelerate again to increase the torque, and the output torque will be reduced during the deceleration process. At the same time, the mechanical wear of the chain sprocket will also increase the vibration of the escalator. [0004] The patentee is Guangzhou Guangri Elevator Industry Co., Ltd., the application date is September 1, 2000, ...

AI Technical Summary

Problems solved by technology

[0005] Its shortcomings are as follows: because its driving motor is connected with the reduction gear with two-stage planetary gearbox and the main transmission shaft of the step sprocket, and they are on the same axis line, because the axial dimension of the driving device itself is long, And it completely occupies the only remaining space on the edge of the main truss outside the end of the escalator sprocket. Its connection with the main drive shaft of the sprocket is limited by the size of the flange seam of the output shaft of the planetary gearbox. The semicircular guide rail groove of the chain The radius of gyration must be increased, so it must use a sprocket with a large number of teeth and a large pitch diameter (such as: 18 teeth or 20 teeth)

[0006] At the same time, the installation and disassembly of this escalator driving device must be provided with a special window for hoisting into the main engine from the side of the escalator, so the use and installation of the existing conventional (16-tooth) traditional escalator truss structure is limited

[0007] The escalator driving device composed of the traditional worm gear and the secondary sprocket has high energy consumption, low efficiency, large mechanical wear, short operating life, and defects in the transmission structure.

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