Stay wire displacement sensor with fault monitoring function, and use method thereof

Abstract

The invention provides a stay wire displacement sensor with a fault monitoring function, and a use method thereof, and relates to the technical field of stay wire displacement sensors. The stay wire displacement sensor with the fault monitoring function comprises a bottom plate, a spring cavity, a dragon hub cavity, a detection cavity, a cover plate, a dragon hub, a stay wire hole and a center shaft. The center shaft is connected with a first bearing and a second bearing, the spring cavity is provided with a first plate, a second plate and a spring, the detection cavity is provided with a detection circuit board, a first gear and a second gear meshed with the first gear, and the first gear is provided with a magnetic part. The detection circuit board is provided with a first detection circuit channel, a second detection circuit channel, a first state monitoring channel and a second state monitoring channel, wherein the first detection circuit channel and the second detection circuit channel are redundant to each other. The sensor is simple in structure and accurate in displacement sensing measurement, can check the installation and operation states of the sensor, can automatically monitor the operation state of the device, adopts a two-way redundant acceleration sensor, realizes closed loop control, and is high in operation reliability.

Description

technical field [0001] The invention relates to the technical field of pull rope displacement sensors, [0002] In particular, the present invention relates to a cable displacement sensor with a fault monitoring function and a method of use thereof. Background technique [0003] The rope displacement sensor is also called the rope sensor, the rope electronic ruler, and the rope encoder. The rope displacement sensor is an exquisite structure of the linear displacement sensor. It fully combines the advantages of the angle sensor and the linear displacement sensor, and becomes a sensor with small installation size, compact structure, large measuring stroke and high precision. The stroke ranges from hundreds of ranging from millimeters to tens of meters. [0004] The scope of application of the rope displacement sensor is increasing, and many of them are dangerous fields, such as high-tower cranes measuring the length of the forearm through the rope displacement sensor, so the...

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Problems solved by technology

[0005] However, the above-mentioned pull wire displacement sensor structure still has the following problems: the installation and operating status of the sensor cannot be frequently checked during use, and if a fault is sent during use, the measurement data cannot be returned correctly, which may cause unnecessary accidents. With the continuous improvement of the level, the intervention and judgment of the operator during the operation of the machine should be gradually replaced by automatic judgment. The sensor is required to automatically monitor its own operating status. In the abnormal working condition before the sensor sends a fault, it cannot issue a warning in time; in the sensor When a failure is sent, the alarm cannot be issued in time, and the system control cannot be closed-looped. The reliability of the system is poor, and the equipment may fail due to untimely maintenance.

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