What the principle of the single rope twines mine pit elevator is that: One end of the steel wire rope is fixed to Winding by the steel wire rope nip, another end after twined hangs and promotes the vessel by derrick wheel. In this way, we make use of the differences of the revolve way to twine or relax the steel wire rope so that to complete the vessel to step up or drop down.
Main axle is the core part of the mine elevator. Its functions are: ① the steel wire rope of twines the type mine pit elevator ; ② endure a kind of normal load( including fixed load and work load ); ③ endure the kinds of unusual load which is result from positive situation. Under the unusual load function, the part of the main axle equipment should not remain remaining distortion. It required us to be careful designing and manufacture when designing and manufacturing. Only in this way, we can prevent the occurrence of failures or accidents .Obviously, the possesses is very significance.
This design is on the basis of the data which are chosen by advance and actually, take the elevator supplementary equipment as the core, after the analysis and computation in science, has designed and chosen a set of the transmission system of the mine pits elevators, and used the electrical-light sensor as the equipment of the indicating system which to measure the amount of the depth of the tank. It enforced the change from the mechanically control to the numerical control, at the same time, has laid the foundation for improve the control system of the elevator.
KEY WORDS: elevator, main axle, brake, electrical-light measurement velocity sensor