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Question:

The construction elevator relies on what to carry heavy, static hour force point where

Gear rack driven

Answer:

The static load of the gear is concentrated in the final gear of the gear.
The driver of the elevator ladder cage is driven by two or three worm gear reducers, which carry heavy lifting parts, and gravity is carried by the rack. At rest, the force point is in the meshing of the gear and rack. It is the main balance between the rewire rope and the ladder cage and the relative motion. For heavy can improve dynamic performance, a heavy on the ladder cage running more smoothly, when a fall, fall of heavy can slow down the ladder cage speed, it should be said that safety performance is better.
Driven by two or three worm gear reducers, the ladder cage is a load bearing unit, and gravity is carried by a rack. At rest, the force point is in the meshing of the gear and rack.

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