Elevator counterweight guide rail guidance stroke measurement device based on sensor technology

Abstract

The invention discloses an elevator counterweight guide rail guidance stroke measurement device based on the sensor technology. The device comprises a measurement robot and a remote control box. The distance between the machine body of the measurement robot and a guidance surface of a guide rail is measured in real time through a Hall sensor on the robot. The distance between the top of the counterweight guide rail and an elevator counterweight side oil cup is measured through a laser distance sensor. Then the guide rail guidance stroke of when a buffer is completely compressed by an elevatoris measured. According to the elevator counterweight guide rail guidance stroke measurement device based on the sensor technology, a method is high in measurement accuracy and quick in measurement, the problem that it is difficult to measure the guide rail guidance stroke is solved, the measurement accuracy of the guide rail guidance stroke is greatly improved, the checking science level of a checking mechanism is improved as well, and powerful technology support is provided for guaranteeing elevator operation security.

Description

technical field [0001] The invention belongs to the field of elevator measurement, in particular to a sensor technology-based elevator counterweight guide rail guidance travel measuring device and a measuring method. Background technique [0002] As a special equipment for carrying people and goods, the safety performance of elevators has attracted widespread attention from the society, which puts forward higher and higher requirements for the inspection capabilities of special equipment inspection agencies and the construction quality of elevator construction units. The elevator guide rail provides guidance for the elevator car and the counterweight device. It controls the running track of the elevator car and ensures the transmission of operation signals. It is also an important part related to the safety and operation quality of the elevator. TSGT7001-2009 "Elevator Supervision Inspection and Periodic Inspection Rules - Traction and Forced Drive Elevators" stipulates: "Wh...

AI Technical Summary

Problems solved by technology

When the car is at the leveling position of the lower end station, the distance from the top surface of the counterweight guide shoe (the plastic oil cup can be ignored) to the end of the counterweight guide rail and the buffer distance must be measured with a tape measure. The corresponding measurement values ​​of each person are different, and the cumulative error is large At the same time, the total compression stroke in the above measurement method includes the compression stroke of the buffer. According to the requirements of the relevant work instructions, the compression stroke of the nonlinear buffer is only assumed to be 90% of the compressible height, and the compression height also needs traditional measurement such as a tape measure Instrument measurement, and the compression stroke of many nonlinear buffers on site is not exactly 90% of the compressible height, which will greatly reduce the accuracy of on-site measurement, and the scientific nature of the measurement is easily questioned

[0009] 2. It is difficult to measure

It is very difficult to measure the distance from the top surface of the counterweight guide shoe to the end of the counterweight guide rail when the car is at the leveling position at the lower end

Especially for high-speed elevators, the height of the elevator car roof and the depth of the pit are relatively large, the length of the tape is generally short, and the texture of the tape is soft, the longer the extension length, the easier it is to bend, use the tape to measure the guidance stroke of the counterweight and the car It is obviously difficult to meet the measurement requirements

[0010] 3. There is some pollution

At present, there is no special instrument and equipment dedicated to testing the parameters of elevator guide rails, especially counterweight guide rails.

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