Multi-wheel rolling guide shoe

Abstract

The invention provides a multi-wheel rolling guide shoe, and belongs to the technical field of elevator equipment. The multi-wheel rolling guide shoe comprises a guide shoe installing base, wheel installing bases, connecting rods and wheels. The number of the wheels corresponding to the single work face of a guide rail is set to be larger than or equal to two, and the number of the wheels corresponding to different work faces of the guide rail is the same or different. The center distance between the two adjacent wheels on the single work face is inversely proportional to the car frame horizontal swinging inherent frequency and is in direct proportion to the elevator running speed, the car frame horizontal swinging inherent frequency and the elevator running speed are considered in the center distance between the two adjacent wheels on the single work face, car vibration caused by the guide rail defect is effectively reduced or eliminated, and the damping performance is improved; and in addition, the multi-wheel rolling guide shoe adapts to the usage environment where the car frame left-right vibration and front-back vibration inherent frequency is different and single-side bearingloads are different, adaptability is higher, and the usage performance of the rolling guide shoe is further improved.

Description

technical field [0001] The invention relates to the technical field of elevator equipment, in particular to a multi-wheel rolling guide shoe. Background technique [0002] With the development of science and technology and the improvement of people's living standards, the use of elevators is becoming more and more extensive. As for the guide rail of the elevator, which is one of the guiding systems for the elevator to run in the vertical direction, when the guide rail of the elevator is out of tolerance on the joint steps, the working surface of the guide rail is defective, the guide rail is partially twisted, and the distance between the guide rails is out of tolerance, the car level The vibration in the direction will be intensified, which will affect the ride comfort of the elevator. [0003] At present, elevators on the market use different guide shoes according to their running speed. Ordinary elevators with low speed generally use sliding guide shoes, while elevators ...

AI Technical Summary

Problems solved by technology

However, the sliding guide shoe has a large frictional resistance, requires more lubricating oil for lubrication, causes serious environmental pollution, and has poor vibration damping performance.

Although the rolling guide shoe can reduce the frictional resistance and does not need lubricating oil, the existing rolling guide shoe and the single working surface of the guide rail generally have one or two rollers, and the vibration damping effect of a single roller is poor, which is difficult to meet In addition, the two roller structures are currently only connected by a connecting rod, and the center of the connecting rod is connected with the guide shoe frame and the car frame through a pressing piece, but only for the case of a single roller moving horizontally. The analysis did not take into account the vibration of the car frame and the time difference between the two rollers passing through the defect of the guide rail successively, resulting in the problem that the existing two-wheel rolling guide shoe device still has a poor vibration damping effect under some conditions.

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