Control method for detection of broken wires of elevator traction rope

Abstract

The invention discloses a control method for detection of broken wires of an elevator traction rope. The control method comprises the following steps of enabling a traction rope wire breaking detection device to detect the wire breaking condition of the traction rope in real time, and send a detection signal to an elevator control cabinet in real time, and enabling a memory in the elevator control cabinet to receive and record the number of broken wires of the traction rope and the detection time corresponding to each broken wire; meanwhile, according to the detection time, enabling the elevator control cabinet to read the car position information which is recorded in the control cabinet in real time, and write into the memory, so as to record the accurate position of each broken wire of the traction rope; according to the number of broken wires of the traction rope and the broken wire positions which are recorded in the memory, enabling the elevator control cabinet to automatically calculate the number of broken wires in the specified length of the traction rope, and judging if the number of broken wires in the specified length of the traction rope exceeds the preset threshold value; finally, executing the corresponding operation according to the judging results. The method has the advantages that the maintenance difficulty and the labor cost of the elevator are reduced, the use safety of the traction rope is provided, and the reliable running of the elevator is ensured.

Description

technical field [0001] The invention relates to the technical field of elevator control, in particular to a control method for detecting broken wires of elevator traction ropes. Background technique [0002] With the development of elevator technology, traction ropes coated with thermoplastic coatings are gradually being applied to elevators. The broken wires of the traction ropes with this structure appear in the form of steel wires piercing the thermoplastic coating and being exposed on the surface of the thermoplastic coating. , when the number of broken wires of the traction rope is too large, it will affect the traction performance and safety factor of the traction rope, and at the same time, it will wear the rope groove of the traction wheel. Therefore, during the use of the elevator, it is necessary to detect the broken wires of the traction rope , to ensure the reliable operation of the elevator. [0003] At present, the method for detecting the broken wire of the t...

AI Technical Summary

Problems solved by technology

This method has poor timeliness and is greatly affected by the operator's subjective influence, and hidden safety hazards cannot be eliminated in time. At the same time, the manual detection method has high cost and low efficiency, and for elevators with a large lifting height, the traction rope is very long. Poor operability, it is difficult to effectively detect the broken wire of the traction rope

[0004] For the detection technology of the traction rope coated with thermoplastic coating, there is no method for automatic real-time monitoring of broken wires, and there is no method for automatically judging the broken wires and implementing elevator fault control

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