Rolling guide shoe of high-speed elevator

Abstract

The invention provides a rolling guide shoe of a high-speed elevator. The rolling guide shoe comprises a frame, shafts fixed on a support, pull rods connected with the shafts, rollers fixed to the pull rods through axles, bolts fixed to the support, and elastic components and vibration isolators which are all arranged on the bolts. A first gap enabling a guide rail to penetrate is formed on the frame, and the support is fixedly connected to the frame; the bolts respectively penetrate the pull rods to extend to one side of each of the rollers. Besides, the rollers, the pull rods and the shafts form roller carries, the roller carriers can rotate relative to the shafts, and the rollers can rotate relative to the axles; the vibration isolators are tightened with the pull rods and the elastic components are compressed both by regulating the bolts, the vibration isolators and the elastic components drive the pull rods to rotate along the shafts and oscillate along the center axes of the bolts so that the rollers are driven to be abutted against the guide rail plane. The rolling guide shoe of the high-speed elevator is capable of eliminating vibration generated when the elevator runs at the high speed of 4m / s to guarantee stable running of the elevator, and is compact in structure and convenient to mount and debug.

Description

technical field [0001] The invention relates to an elevator, in particular to an elevator car moving along a guide rail including a rolling guide shoe assembly structure. Background technique [0002] The development of science and technology and high-rise buildings makes elevators develop towards high efficiency, intelligence, and high comfort, and the speed of elevators is constantly increasing. At present, domestic and foreign market surveys have found that the market share of elevators with a line speed of ≤2m / s is gradually being occupied by elevators with a line speed of 2.5-5.0m / s. At present, the guide shoes used in the elevator industry at home and abroad are usually divided into rolling guide shoes and sliding guide shoes. Generally, sliding guide shoes are used when the linear speed of the elevator is less than 2m / s, and rolling guide shoes are used when the linear speed of the elevator is ≥2m / s. When sliding guide shoes are used, under the condition of sliding f...

AI Technical Summary

Problems solved by technology

When sliding guide shoes are used, under the condition of sliding friction, the coefficient of static friction and the coefficient of dynamic friction are quite different. In this way, when the elevator runs from static to starting or from leveling speed to stop, it will produce an impact of instantaneous acceleration, which is caused by static friction. The transition process from dynamic friction to static friction is a critical point on the friction curve, which is completed instantaneously, that is, the rate of change of acceleration is very large, and the stability of the elevator operation is poor, which causes the comfort of the elevator to ride. deterioration

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