Shock pad, step chain wheel with shock pad and escalator adopting chain wheel

Abstract

The invention discloses a shock pad for a step chain wheel. The shock pad comprises a hard wear-resistant core and an elastic rubber plug which are fixedly connected, the hard wear-resistant core comprises a head part for bearing the impact of the chain and a connecting part arranged on the lower side of the head part; the upper part of the elastic rubber plug covers the outer side of the connecting part of the hard wear-resistant core, and the top end of the elastic rubber plug is propped against the head part of the hard wear-resistant core; a first through hole penetrating through the head part and the connecting part is formed in the hard wear-resistant core, and correspondingly, a second through hole which is communicated with the first through hole and extends to the bottom end of the elastic rubber plug is formed in the lower part of the elastic rubber plug; and the lower part of the elastic rubber plug is provided with a tight fit step. The shock pad adopts a composite structure combining the hard wear-resistant core and the elastic rubber plug, and is not easy to wear, long in service life and good in shock absorption effect; when the shock pad is installed on the step chain wheel, vibration and noise generated when the step chain wheel collides with a chain can be effectively reduced. Correspondingly, the invention further provides a step chain wheel with the shock pad and an escalator adopting the chain wheel.

Description

technical field [0001] The invention relates to the technical field of escalators and their accessories, in particular to a shock absorbing pad, a step sprocket with the shock absorbing pad and an escalator using the sprocket. Background technique [0002] Escalators have the characteristics of large conveying capacity, durability, and stable operation. They are widely used in shopping malls, airports, subway stations and other public places with concentrated passenger traffic for continuous transportation of people. The step sprocket is mainly used to drive the escalator to drive the step chain and the steps to run; when the escalator circulates, the upper step sprocket needs to transmit power to the lower step sprocket through the chain drive to turn. Most of the current step sprockets are made of hard materials. When the chain meshes with the teeth of the step sprockets, an impact will occur, causing vibration and noise, thereby greatly reducing the comfort of the escalat...

AI Technical Summary

Problems solved by technology

However, the current shock pads are made of plastic as a whole (usually TPU, see the structure Figure 4 ), it is easy to wear, and the shock pad may be permanently deformed under the continuous impact of the chain, and the service life is short; in addition, according to the feedback from the OEM, the shock absorption effect of the existing shock pad is not ideal. Room for improvement

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