Construction lift falling prevention safety device field detection device based on sensor technology

Abstract

The invention relates to a construction lift falling prevention safety device field detection device based on sensor technology. The detection device has the advantages of simple structure, convenient use and high precision. According to the technical scheme, the construction lift falling prevention safety device field detection device comprises a sensor, a data acquisition module and a computer with an analysis module which are connected in sequence, wherein the sensor and the data acquisition module are connected via a wire. The construction lift falling prevention safety device field detection device based on sensor technology is characterized in that the sensor is a triaxial digital accelerometer, and the sensor and the data acquisition module are fixedly arranged at the bottom part inside a lift cage.

Description

technical field [0001] The invention relates to a detection device for an anti-fall safety device, in particular to an on-site detection device for a construction hoist anti-fall safety device. Background technique [0002] The anti-fall safety device of the construction hoist needs to be inspected and calibrated regularly every year. At present, the most common detection method is the test bench method. Every time the safety device is tested, it needs to be disassembled and sent to the laboratory, which not only results in long turnaround time and labor costs. Low efficiency and other problems, and the test bench detection is based on the simulation detection method, which may lead to large errors between the detection results and the actual situation. There is an article that uses a rotary encoder as an on-site detection method for the sensor, but in this method, the rotary encoder is driven by the meshing transmission of the gear and the rack, so the smoothness of the mes...

AI Technical Summary

Problems solved by technology

[0002] The anti-fall safety device of the construction hoist needs to be inspected and calibrated regularly every year. At present, the most common detection method is the test bench method. Every time the safety device is tested, it needs to be disassembled and sent to the laboratory, which not only results in long turnaround time and labor costs. Low efficiency and other issues, and the test bench detection is based on the simulation detection method, which may lead to a large error between the detection results and the actual situation

There is an article that uses a rotary encoder as an on-site detection method for sensors, but in this method, the rotary encoder is driven by the meshing transmission of the gear and the rack, so the smoothness of the meshing of the rack and pinion needs to be adjusted on site, which is very inconvenient to use

There are also articles that use the rope-type distance sensor to obtain other relevant parameters by measuring the distance change. This method needs to fix the sensor on the guide rail and calibrate the angle of the cable. The detection accuracy of key parameters is not high, and it is greatly affected by environmental factors. , the limitations of use in the field are relatively large

Therefore, it is currently impossible to accurately detect the braking distance, action speed, and deceleration time of the anti-fall safety device in the field of use, and these parameters are key indicators for judging whether the anti-fall safety device is qualified; based on this situation, a Convenient, high-precision, and efficient on-site detection devices for anti-fall safety devices are particularly important

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