Intelligent compensation device for elongation quantity of cage carrying rope and intelligent compensation method thereof

Abstract

The invention discloses an intelligent compensation device for the elongation quantity of a cage carrying rope and an intelligent compensation method thereof. The device comprises a PLC (Programmable Logic Controller) and weighing devices, wherein the weighing devices are arranged at both a wellhead and a downhole, and the PLC is used for receiving weight signals outputted by the weighing devices and judging a starting point when a hoisting winch stops releasing a steel wire rope. The intelligent compensation device is simple in structure and convenient in operation, the intelligentification can be achieved, and a mine car (or a trackless rubber tire vehicle and the like) can be ensured to stably, safely and reliably access a cage, so that the intelligent compensation device has very good practicability, and good economic and social effects can be generated.

Description

technical field [0001] The invention relates to a mine vertical shaft hoisting system, in particular to an intelligent compensation device and an intelligent compensation method for the elongation of steel wire ropes carried by a cage. Background technique [0002] In shaft hoisting, currently commonly used undertaking devices include cradles, tank supporting machines and tank support cradles. When the cradle is used to lift the container, the container is in a suspended state. Due to the elastic deformation of the hoisting wire rope and the impact of the tank stop error, the position of the cage changes, and the change is satisfied by the cradle. On the one hand, the cage shakes due to the impact on the cage when the mine car enters and exits the cage, and on the other hand, the change in the elastic elongation of the hoisting wire rope due to the change of the cage load causes the cage to jump up and down when the mine car is replaced, which is easy to cause the mine car t...

AI Technical Summary

Problems solved by technology

The double-complement locking slewing automatic compensation cradle solves the problem that the mine car enters and exits the cage smoothly, but it brings a new problem: when the depth of the well is large and the lifting load is large, the elastic elongation of the hoisting wire rope changes greatly , when the change in elastic elongation of the wire rope is greater than the two-way compensation amount of the supporting force mechanism and the synchronous rotary lap mechanism, the lifting container will shake up and down when it is released (such as when an empty tank is replaced with a heavy tank), causing the lifting wire rope to "vibrate". ", which affects the life of the hoisting wire rope, damages the liner of the winch, etc.

This device solves the problem that the mine car enters and exits the cage smoothly, but it brings new problems: 1. The accuracy of tank stopping is very high, and it is difficult for domestic electrical appliances to meet this requirement at present; 2. When the well depth is large and the lifting load is heavy When it is large, the elastic elongation of the hoisting steel wire rope changes greatly. When the elastic elongation of the steel wire rope changes more than the adjustment of the tank stabilizer arm, the lifting container will shake up and down when it is released (such as when an empty tank is replaced by a heavy tank). Cause the hoisting wire rope to "vibrate", affect the life of the hoisting wire rope, damage the winch liner, etc.; 3. The device is controlled by a servo system and an electrical system, the system is complicated, and it has not been put into practical use at present

The system of the device is complicated, the electrical requirements are high, the tank stop is accurate (±20mm), and the price is expensive

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