Lift-car self-propelled elevator and control method thereof

Abstract

The invention discloses a lift-car self-propelled elevator and a control method of the lift-car self-propelled elevator, and the elevator comprises steel-wire ropes, gravity self-locking devices, an upper synchronous frame, a lower synchronous frame and lifting hydraulic rods. The upper ends and the lower ends of the steel-wire ropes are fixedly connected with the top of an elevator well and the bottom of the elevator well correspondingly, the gravity self-locking devices are arranged on the steel-wire ropes and matched with a lift car in a linkage manner, the upper synchronous frame is arranged above the lift car, and the lower synchronous frame is arranged below the lift car. The lifting hydraulic rods are symmetrically arranged on the top of the lift-car and the bottom of the lift-car,the upper lifting hydraulic rods connect the upper synchronous frame with the top of the lift car, and the lower lifting hydraulic rods connect the lower synchronous frame with the bottom of the liftcar. According to the lift-car self-propelled elevator and the control method of the lift-car self-propelled elevator, a counterweight device is not needed, the load-bearing capacity of the steel-wireropes is greatly reduced, and in the lifting movement process of the lift car, the upper ends and the lower ends of the steel-wire ropes are fixed, so that the overload damage and the fatigue damageof the steel-wire ropes are lowered, and the service life of the elevator is prolonged.

Description

technical field [0001] The invention relates to a car self-propelled elevator and a control method thereof. Background technique [0002] Common walking escalators in shopping malls and car elevators in residential buildings. Among them, car elevators are the most common in daily life, and most of the elevator accidents that have been exposed have occurred in this type of elevator. [0003] Existing car elevators mainly include brakes, buffers, safety gears, speed governors, ladder wells, traction motors, traction wire ropes, car guide rails, cars, counterweight guide rails, counterweight devices, etc. The two ends of the traction wire rope of the van elevator are respectively connected to the car and the counterweight device, and the traction wire rope is wound on the traction wheel and the guide wheel. The traction force generated by the friction between the lead rope and the traction wheel realizes the lifting movement of the car and the counterweight to achieve the pur...

AI Technical Summary

Problems solved by technology

[0004] Due to the existing car-type elevator, the car is in the process of lifting and lowering. On the one hand, the traction wire rope needs to slide up and down. The groove also bears high specific pressure, which is prone to fatigue damage; on the other hand, the traction wire rope not only bears the weight of the car, but also bears the weight of the counterweight device, which is easy to cause overload damage, which greatly affects The service life of the elevator

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