A detection method of winch cable length

Abstract

The invention discloses a detection method for the length of a winch cable, which belongs to the technical field of marine engineering. The detection method is based on the following detection device. The detection device includes an encoder and a processor. The detection shaft of the encoder is coaxially connected with the drum of the winch, and the output end of the encoder is electrically connected with the input end of the processor. The detection device also includes a first limit switch and a second limit switch. The limit switch, the first limit switch and the second limit switch are installed at intervals on the cable ejector bracket of the winch, the first limit switch and the second limit switch are both electrically connected to the input end of the processor, and the processor is used for According to the electrical signal output by the first limit switch and the second limit switch, the number of layers of the cable wound by the drum is calculated, and the number of turns of each layer of the cable wound by the drum is calculated according to the electrical signal output by the encoder. According to the layer of the cable The length of the cable is obtained by calculating the number of turns and the number of turns of each layer of cable. The invention can improve the accuracy of detecting the cable length.

Description

technical field [0001] The invention belongs to the technical field of marine engineering, and in particular relates to a detection method for the length of a winch cable. Background technique [0002] The drum is a common mechanical component, which is used in various marine machinery and equipment, such as winches, towing machines and cranes, etc., and mainly recovers or releases cables through its own rotation. [0003] In order to avoid excessive payout of the cable, the operator needs to clearly know the length of the cable wound in the drum. Or in some working conditions, the operator needs to clearly know the length of the cable that has been paid out. The present cable length detection method is usually that an encoder is arranged at one end of the drum, and the detection shaft of the encoder is coaxially connected with the drum, so that the number of turns of the drum rotation can be measured in real time. Further, assuming that the number n of layers of cables wo...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of actually recovering the cable, it cannot be guaranteed that the number of turns of each layer of the cable is the same, so if each layer uses the fixed value p as the number of turns, it will lead to an error in the number of layers, and then cause the detection of the length of the cable to fail. mistake

Images