Uninterruptible power supply for coal mine hydraulic support

Abstract

The invention discloses an uninterruptible power supply for a coal mine hydraulic support. The uninterruptible power supply comprises an explosion-proof shell, an intrinsic safety power supply module, a battery cover, a charging and discharging management module, a lithium ion battery pack and an SMC insulating mounting plate, wherein a battery cover is fixedly installed on an inner bottom wall of the explosion-proof shell, a fixing block is arranged at the bottom of the battery cover, the battery cover is fixedly connected with the inner bottom wall of the explosion-proof shell through the fixing block, a lithium ion battery pack is arranged in the battery cover, and a battery cover plate is arranged at the top of the battery cover; the top of the battery cover plate is clamped with an SMC insulating mounting plate, the SMC insulating mounting plate is composed of an upper SMC insulating mounting plate and a lower SMC insulating mounting plate, and the upper SMC insulating mounting plate and the lower SMC insulating mounting plate are fixedly connected through a copper column, so that the SMC insulating mounting plate and the copper column form a square cavity which is arranged at the top of the battery cover; the uninterruptible power supply can work continuously for a long time, is convenient to carry and charge, and can be applied to explosive gas environments such as gas and dust in an underground coal mine.

Description

technical field [0001] The invention relates to the technical field of uninterruptible power supply. Specifically, it is an uninterruptible power supply for a coal mine hydraulic support. Background technique [0002] At present, with the development of computer technology and automation technology, it provides a new way out for coal mine production automation and efficient production. Hydraulic support is an important part of fully mechanized mining equipment. It can reliably and effectively support and control the roof of the working face, isolate the goaf, prevent gangue from entering the mining face and push the conveyor. The hydraulic support is used in conjunction with the shearer to realize the comprehensive mechanization of coal mining and solve the problem of mechanized coal mining. The middle roof management lags behind the contradiction of coal mining work, and further improves and improves the efficiency of coal mining and transportation equipment, reduces the ...

AI Technical Summary

Problems solved by technology

However, the current power supply method of the hydraulic support and its electro-hydraulic control system still uses dragging cables for power supply. Due to the complex environment of the working surface, objects falling from the roof often break the cables, and the cables are easily broken during the dragging process, causing the hydraulic supports to malfunction. In addition, when the power supply of the working surface fails and the power is cut off, the support control system cannot work normally, which not only affects normal production, but even causes safety accidents

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