Escalator structure

       The escalator consists of a ladder (a modified plate conveyor) and an armrest (a deformed belt conveyor) on both sides. Its main components are cascade, traction chain and sprocket, guide rail system, main transmission system (including motor, deceleration device, brake and intermediate transmission link, etc.) driving spindle, ladder tensioning device, handrail system, comb board, escalator skeleton and electrical system, etc. The stairs gradually form after horizontal movement at the passenger entrance (convenient for passengers to climb the stairs); the stairs gradually disappear near the entrance, and the stairs move horizontally again. These movements are realized by the steps of main wheels and auxiliary wheels.

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