Abstract
According to the test requirements of elevator safety devices, a set of elevator tower was designed and manufactured. There are two wells, one is used to ascending test, and the other is used to descending test. The lifting devices are composed of electric hoist and trolley, and can move along the track on the top of tower in order to change test well. The guide bracket is hanged on the lifting hook of hoist and slides on the track with guide shoes. There are two hooks in release mechanism and controlled by electric control system and manual button separately. The loading mechanism implements hoisting and walking movements through silk pole and pulley system.
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