Drive device of escalator or moving sidewalk

Abstract

The invention discloses a drive device of an escalator or a moving sidewalk. The drive device comprises a motor, a reduction gearbox and a drive main shaft which are in sequential transmission. The drive main shaft is of a two-segment structure, one segment is a long shaft with a stair chain wheel, the other segment is a short shaft which penetrates the reduction gearbox and is in direct linkage transmission with the reduction gearbox, and the end portions which deviate from each other of the long shaft and the short shaft are arranged on a truss through bearing pedestal sets correspondingly. According to the drive device of the escalator or the moving sidewalk, the structure of the drive main shaft, the installation and connection manner and the like are optimized to meet the requirements of an escalator and moving sidewalk system adopting a direct connection drive device, especially an escalator and moving sidewalk system with large loads and large lifting heights, mounting and demounting are more convenient, and running is more stable.

Description

technical field [0001] The invention relates to the technical field of escalators, in particular to a driving device for an escalator or a moving walk. Background technique [0002] Drive devices widely used in traditional escalators or moving walks, such as figure 1 As shown, the drive device includes: motor, drive spindle 2, handrail sprocket 3, step sprocket 4, drive sprocket 5, additional brake disc 1, etc., wherein the additional brake disc 1 is selected according to actual needs. The two ends of the drive main shaft 2 are respectively installed on the truss 6 through bearings. The motor is linked with the driving sprocket 5 through a chain, and the driving sprocket 5 drives the driving main shaft 2 to rotate. The driving device contains a chain transmission, which is inconvenient for maintenance such as lubrication, and the working environment is harsh, and it is prone to safety risks such as loosening or breaking of the transmission chain. Escalators or walkways an...

AI Technical Summary

Problems solved by technology

[0004] like figure 2 As shown, the output power of the motor is transmitted to the driving main shaft 2 through the reduction box 8, and the driving main shaft 2 drives the handrail belt sprocket 3 and the step sprocket 4 to realize the drive of the escalator system, wherein the shaft end connecting the driving main shaft 2 and the reduction box 8 depends on the demand To transmit the total power and load of the step drive chains and handrail drive chains on both sides of the output escalator system, so there will be a large stress at the shaft end here, and there will be adverse effects such as stress concentration at the steps of the shaft end. Therefore, there are obvious restrictions on the load size and safety range of the drive spindle 2, which also limits the use of the new type of direct-connected drive spindle drive in escalators and moving walks with large lifting heights and large loads (such as public transport escalators and moving walks). Promoted application of

At the same time, the drive spindle 2 is an integral structure that cannot be disassembled, which makes the update and disassembly process of the drive device more complicated

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