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Driving system

The driving system of escalator, which is consisted of a motor, a reducer and an operational brake, is located at the driving station. The reducer is a nice worm gear reducer adopting the special Niman teeth and the advanced manufacturing techniques, which has the advantage of the compact structure, a heavy carrying capacity, calm operation, low noise and etc. A flexible coupling connects the motor shaft with the reducer, which would benefit assembly and maintenance. The motor capacity is designed according to the rise of the escalator and the step width.

Truss

The truss of DIAO SME escalator is half closed metal supporting structure, which supports both the escalator’s and the passengers’ weight. Both its ends contacting the ground are standing on the supporting beam of the building. In order to reduce the vibration of the escalator, a special damping rubber is located between the building and the supporting points of the truss. The deflection of the whole truss does not exceed 1/1000 of the horizontal distance between the supporting points.

1.3.3 Guide rail system

The guide rail system of DIAO SME escalator is composed of high strength guide rail profiled bars, guide rail supporting parts, turning wall and other components. The guide rail system is installed in the truss.

1.3.4 Steps

Steps used in DIAO SME escalator are made of stainless steel. They have the advantage of lightness and accuracy. There are a lot of grooves in their pallets and risers. When the steps are moving, the grooves of the pallets engage with the comb teeth, which can prevent foreign bodies from dropping into the escalator. There are yellow safety lines on each side of the steps and damping mud inside the steps. Step auxiliary wheels and guide blocks are installed on the steps.

1.3.5 Step chains

The step chains are composed of two pairs of chains especially for escalators with a pitch line of 133.3mm.The mail wheel hub is made of polyurethane and the rim is consisted of a double faces sealed ball bearing, which can reduce the noise made by the mesh between chains and wheels.


Date: 2015-01-11; view: 734


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