Traction power system for elevator

Abstract

The invention discloses a traction power system for an elevator. The traction power system comprises a traction machine, a traction steel wire rope and a counterweight block arranged below the traction machine. The traction power system is characterized in that one end of the traction steel wire rope is fixed with a housing of the traction machine, wherein the other end of the traction steel wire rope is fixed with the inner wall of an elevator hoistway; a pre-tightening mechanism is arranged on the outer side wall of the car; a ring-shaped groove is formed in the outer circumferential wall of a guide wheel; at least three clamping slots which are formed in an internally tangent manner in the radial direction of the guide wheel are formed in the groove bottom of the ring-shaped groove; all clamping slots are uniformly distributed in the circumferential direction of the guide wheel; clamping blocks are arranged in the clamping slots; and the clamping blocks are detachably connected with the clamping slots. According to the traction power system for the elevator provided by the invention, in an elevator maintenance process, a car and the counterweight block can guarantee that the traction steel wire rope does not slip from the guide wheel while not applying acting force to the traction steel wire rope, so that the risk that the traction steel wire rope slips from the guide wheel is avoided.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a traction power system for elevators. Background technique [0002] The lifting process of the elevator is to wind the driving wheel of the traction machine, the guide wheel of the car and the counterweight wheel of the counterweight in sequence through the traction wire rope, so as to drive the movement of the car through the friction between the driving wheel and the traction wire rope. lift. As a special equipment, the safety of the elevator is directly related to the life safety of passengers. Therefore, the requirements for elevator repair and maintenance are high, that is, the frequency of maintenance is high, the service life of parts is short, and the replacement of vulnerable parts High frequency. And the elevator needs to lock the car and the counterweight during the maintenance process, so as to facilitate the loosening of the traction wire rope, and realize the i...

AI Technical Summary

Problems solved by technology

As a special equipment, the safety of the elevator is directly related to the life safety of passengers. Therefore, the requirements for elevator repair and maintenance are high, that is, the frequency of maintenance is high, the service life of parts is short, and the replacement of vulnerable parts High frequency

And the elevator needs to lock the car and the counterweight during the maintenance process, so as to facilitate the loosening of the traction wire rope, and realize the inspection or replacement of the guide wheels of each component. In the elevator maintenance of the prior art, the guide wheels After the maintenance or replacement is completed, when the traction wire rope is reset, there is a risk of misalignment between the traction wire rope and the guide wheel, that is, the traction wire rope slips from the guide wheel, thereby causing the shaft of the traction wire rope and the guide wheel to be stuck, or As a result, the rotating shaft of the guide wheel is constantly rubbed against the traction wire rope, resulting in premature damage to both parts

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