Armrest belt tensioning device used for escalator

Abstract

The invention provides an armrest belt tensioning device used for an escalator. An escalator includes a truss and annular armrest belts which can rotate relative to the truss; the device includes a substrate and a guiding mechanism; the substrate is provided with rollers used for supporting the armrest belts; the guiding mechanism is fixed on the truss; and the substrate is connected to the guiding mechanism and can perform rotation and translation relative to the guiding mechanism, so that the armrest belts can be adjusted through the substrate, and therefore, the armrest belts can be in goodtensioning states. The device can be ensured to be installed in a more accurate position, and the tensile force of the armrest belts can be adjusted easily, so that the time for adjusting the armrestbelts can be shortened, and the service life of the armrest belts can be prolonged.

Description

technical field [0001] The present invention relates to the field of escalators, in particular to a handrail tensioning device for escalators. Background technique [0002] In the escalator handrail system, due to the length deviation of the handrail caused by manufacturing and the length change of the handrail caused by the long-term operation of the escalator, a handrail tensioning structure is required to guide the handrail and eliminate the influence of the length change of the handrail, so that the The handrails maintain reasonable tension for proper operation. [0003] The commonly used solution for fixing the handrail tensioner is to use a bent plate with a long slot in it as the bottom plate of the tensioner, or use a bent plate to connect the bottom plate of the tensioner (similar to figure 1 structure shown), the bent plate is fixed directly to the truss. However, due to the angle deviation and dimensional error of the bending plate caused by manufacturing, the b...

AI Technical Summary

Problems solved by technology

However, due to the angle deviation and dimensional error of the bending plate caused by manufacturing, it is difficult to install the bottom plate of the tensioning device in the correct position, so the support and guide rollers are difficult to be in the correct position, which causes the handrail to deviate from the design track and the handrail to break away from the rollers, Shorten the life of handrails

[0004] Another problem with the prior art is that at the tension bolt, the tension cannot be controlled when the handrail is tightened, there is no function to measure the tension

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