Heavy-load roller guide shoe mechanism

Abstract

The invention discloses a heavy-load roller guide shoe mechanism. The heavy-load roller guide shoe mechanism comprises a bottom plate and a support fixedly arranged on the bottom plate, wherein swing assemblies are arranged on the left side and the right side of the support, each swing assembly comprises a swing arm, a swing rod and a support base, the support bases are fixedly arranged on the bottom plate, and the bottoms of the swing arms are mounted on the support bases through swing shafts; and the middles of the swing rods are mounted on the swing arms through rotating shafts, the tops and the bottoms of the swing rods are provided with rollers, and the upper rollers and the lower rollers are symmetrically arranged with the rotating shafts as the centers and are linked through the swing rods to act on a guide rail simultaneously. According to the mechanism, single rollers are improved into the upper rollers and the lower rollers to be linked through the swing rods and act on the guide rail simultaneously, the swing rods swing around fulcrums to enable the upper rollers and the lower rollers to be automatically attached to the guide rail, the bearing capacity of a guide shoe is improved, the problem of large load or large unbalance loading force is solved, meanwhile, the guide length is increased, and a guide effect of the roller guide shoe is improved.

Description

technical field [0001] The invention belongs to the field of elevator safety protection, and in particular relates to a large-load roller guide shoe mechanism. Background technique [0002] The guide shoe is an indispensable part on the running track of the elevator. It can limit the guidance of the car to the guide rail, so that the car can only move up and down without causing interference with the position caused by horizontal shaking or large inclination. In the existing roller guide shoe mechanism, a pair of side-by-side rollers are arranged on the base of the guide shoe, a pair of rollers are pressed against both sides of the car guide rail, and another roller is pressed against the top surface of the car guide rail. When it is applied to the car, it is easy to cause overload, cause the guide and limit to fail, and affect the normal operation of the car. At the same time, for the single roller structure, it is necessary to use a large-diameter roller when facing a hea...

AI Technical Summary

Problems solved by technology

In the existing roller guide shoe mechanism, a pair of side-by-side rollers are arranged on the base of the guide shoe, a pair of rollers are pressed against both sides of the car guide rail, and another roller is pressed against the top surface of the car guide rail. When it is applied to the car, it is easy to cause overload, cause the guide and limit to fail, and affect the normal operation of the car

At the same time, for the single roller structure, it is necessary to use a large-diameter roller when facing a heavy load, which makes the size of the guide shoe larger, the installation space is larger, and the service life is more difficult; and the guide length of the single roller is limited. It cannot increase the guidance and stability, and cannot fundamentally improve the stress state of the guide rail and guide shoe

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