Device and method for over-speed detection of elevating container

Abstract

The invention provides a device and a method for over-speed detection of an elevating container. The device mainly comprises a pressure sensor, a wire rope connecting device, a main wire rope, the elevating container, a speed limiting device, a tensioning device and an industrial computer, wherein the main wire rope is wound around a main rope pulley and an auxiliary rope pulley of the speed limiting device in an Z-shaped manner; the main rope pulley is a centrifugal speed limiting wheel; and when the rotational linear velocity achieves a set value, the centrifugal speed limiting wheel stops rotating and is in sliding friction with the main wire rope, so that the tension of the main wire rope is increased remarkably. The tension range of the rope when the elevating container operates normally and in an over-speed manner is measured on site through the pressure sensor and the industrial computer. When the hoisting speed is higher than the set values of the rope pulleys, the tension signal of the main wire rope, which is detected by the pressure sensor is analyzed by the industrial computer to be in the over-speed operation tension range, that is, the over-speed detection of the elevating container. The detection device has the advantages that the principle is concise; the structure is simple; the response is fast; the reliability is high; the cost is lower; and the mounting and the maintenance are convenient.

Description

technical field [0001] The invention relates to an overspeed detection device and method, in particular to an overspeed detection device and method suitable for shaft hoisting containers of mines or elevators. Background technique [0002] In recent years, with the continuous advancement of the construction of large coal enterprise groups, the country has put forward higher requirements for mine hoisting equipment in terms of safety, efficiency and technology. According to Article 427 of the "Coal Mine Safety Regulations", the mine hoisting system must be equipped with safety devices such as anti-rolling, over-speed, speed limit, loose rope, and failure of the depth indicator. At present, the existing overspeed detection devices are all installed at the wellhead, and only for the hoist, without directly detecting the hoisting container, and there is no reliable method particularly suitable for overspeed detection of the mine hoisting container. Therefore, there is a lack of...

AI Technical Summary

Problems solved by technology

Therefore, there is a lack of effective overspeed detection devices, and accidents such as overwinding, overspeed, and container drop occur from time to time

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