Structure simple elevator and control method thereof

Abstract

The invention relates to a structure simple elevator and a control method thereof. An existing elevator is provided with a plurality of limiting switches, and using convenience is affected. The structure simple elevator comprises a shaft way, an elevator car and a limit position control device. The limit position control device comprises a controller, a limiting switch, an upper final limit cam and a lower final limit cam. The upper final limit cam and the lower final limit cam are both provided with trigger point sets. The controller acquires the elevator car position according to the numberof triggering of the limiting switch and the elevator car lifting direction and then controls the elevator to carry out speed reduction operation or brake operation or outage operation. The installation position of the limiting switch is changed to the elevator car, the number of the limiting switch is reduced to one, the number of signal sources is effectively reduced, the situation that the signal sources interfere one another is effectively avoided, the production cost is reduced by reducing the number of the limiting switch, the dust accumulation failure situation is avoided by improving the using frequency, and the using safety is ensured.

Description

technical field [0001] The invention relates to the field of elevators, in particular to an elevator and a control method thereof. Background technique [0002] Existing elevators include a vertical hoistway, guide rails vertically arranged along the hoistway, a car that moves up and down along the guide rail, and a drive component that drives the car up and down. The drive component drives the car up and down along the track to realize the transportation of people and goods between different floors . In order to ensure the safe operation of the car, limit position control devices are usually installed on the elevator to effectively prevent the car from rushing to the top or hitting the ground due to loss of control. The existing limit position control device includes two sets of limit switch assemblies respectively arranged on the top and bottom of the car and a bow assembly arranged on the car. The limit switch assembly includes a deceleration switch, an end switch and a ...

AI Technical Summary

Problems solved by technology

This structure has the following defects: Since each limit switch has its own unique function, in order to ensure the normal operation of the limit position control device, two sets of six limit switches must be installed, which will increase the number of signal sources and further increase The difficulty of control and the probability of interference between signals also increase the production cost and cause a lot of waste. In addition, dust will accumulate because the limit switch is placed in the well for a long time and remains stationary, which increases the probability of switch failure and poses a safety hazard.

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