A suspended single hydraulic prop bending deformation detection and alarm device

Abstract

The invention discloses a suspended single hydraulic prop bending deformation detecting and warning device. The device comprises an optical fiber measuring device (1), a single-chip (2), an LED display warning device (4), a wireless transmission device (5), a pressure measuring device (7) and a handle body (8) mounted on a suspended single hydraulic prop, wherein the optical fiber measuring device (1) is connected with an input port of the single-chip (2) through a lead (3); two output ports of the single-chip (2) are respectively connected with the LED display warning device (4) and the wireless transmission device (5) through leads (3); and a switch control circuit (6) controlled by the pressure measuring device (7) mounted in a step hole of the handle body (8) is connected with an input port of the single-chip (2) through a lead (3). The device can monitor the working state of the single hydraulic prop in an advance support area at the lower end of a mine in real time to convoy the safety production of the mine and the life safety of workers.

Description

technical field [0001] The invention relates to a suspended single hydraulic prop, in particular to a bending deformation detection and alarm device for a suspended single hydraulic prop. Background technique [0002] Suspended single hydraulic prop is a new type of constant resistance single hydraulic prop with external liquid supply, which is an ideal supporting equipment and end support equipment for high-grade mechanized general mining face It has the advantages of excellent anti-eccentric load capacity, high stability, high reliability, light weight, large working stroke, high strength, and convenient use. It has been widely used in the support of mine working faces, providing support for mines and workers. It provides good protection for safe production and work, and has great application prospects. [0003] However, in recent years, it has been found in field use that when the roof pressure of the working face is pressed periodically and the roof pressure on the pill...

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Problems solved by technology

[0003] However, in recent years, it has been found in field use that when the roof pressure of the working face is pressed periodically and the roof pressure on the pillar suddenly reaches or exceeds its working resistance, the safety valve cannot be opened quickly or the flow of the safety valve is too small, etc., causing the pillar Being bent, the hydraulic pressure in the column cavity increases instantaneously; since the currently used suspended single hydraulic prop is not equipped with an effective pillar bending deformation detection device and alarm device, it is impossible to remind workers and ground monitoring personnel that the pillar is in a dangerous state in real time , if it is not dealt with in time, a roof fall accident may occur, affecting the safe production of the mine and endangering the lives of workers

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