An intelligent compensation method for the elongation of steel wire ropes carrying cages and its special device

Abstract

The invention discloses a method and a special device for intelligently complementing expansion of a cage load steel wire rope. The method includes: (1) measuring the weight m1 of object to be conveyed through a weighter at a well mouth, and transmitting the weight m1 to a programmed logic controller (PLC); (2) loading the object to be conveyed on four supporting claws of a cage weighing supporting pot at a normal crawling speed, wherein the action force of the four supporting claws is acted on the weighter through a frame or a buffering device, and then outputting the parameter m to the PLC through the weighter; (3) stopping a lifting machine when the PLC judges the parameter m to be equal to the m1, and the overloaded amount for lifting the steel rope wire is equal to the elastic expansion change amount for lifting the steel rope wire due to changes of the lifting weight. On the condition of maintaining an original cage load device not to change, the weighter is arranged at a side for a pit car to enter or a side for the pit car to go out of a well mouth. The load weight is measured through the weighter, and the weight value is transmitted to the PLC. A weight sensing device at the shaft bottom is maintained not to change. The method greatly reduces mine infrastructure workload and equipment investment cost, and has good practicability.

Description

technical field [0001] The invention relates to mining machinery, in particular to an intelligent compensation method for the elongation of steel wire ropes carried by cages and a special device thereof. Background technique [0002] In CN102556814A, an intelligent compensation device and an intelligent compensation method for the elongation of the steel wire rope carried by the cage are disclosed. The intelligent compensation device for the elongation of the steel wire rope carried by the cage includes a PLC and a weighing device; the weighing device is in Both the wellhead and the downhole are provided, and the PLC is used for receiving the weight signal output by the weighing device and judging the starting point at which the hoisting winch stops releasing the wire rope. The intelligent compensation method includes: (1) using a weighing device to measure the weight m1 of the wellhead cage before the cage load; (2) using the weighing device to measure the corresponding (we...

AI Technical Summary

Problems solved by technology

[0003] However, in actual use, the infrastructure workload of the wellhead equipment intelligent compensation undertaking device is very large, especially in the case of mine reconstruction, and sometimes it is even impossible to equip it at all.

Therefore, in practical application, this device also has problems such as high cost and difficult construction, and cannot be well applied in existing industries.

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