Clamping device for electric explosion prevention box body for mine in hydrostatic test

Abstract

The invention discloses a clamping device for an electric explosion prevention box body for a mine in a hydrostatic test. The clamping device is characterized by comprising two groups of connecting frames and joint steels, wherein the two groups of connecting frames are formed by vertically fixedly connecting angle steels and channel beams in parallel; the joint steels are vertically arranged between the two groups of connecting frames in parallel; and the channel steel at one end of each group of connecting frame is provided with a bolt and a screw hole, and the bolt penetrates through the screw hole to be movably connected with the joint steel to form an integer. The clamping device is especially used for clamping the electric explosion prevention box body for the mine in the hydrostatic test, can be regulated according to sizes of different models of electric switches for the mine, is economic and practical, and is high in reliability. One group of connecting frame is made of the joint steels, the other group of connecting frame is formed by welding the channel steel and the angle steel, thus maximum bending-resistant sections of the joint steels, the channel steel and the angle steel are fully utilized; and the whole clamping device is light in weight and good in rigidity.

Description

technical field [0001] The invention relates to a hydraulic test device for mechanical equipment, in particular to a hydraulic test clamping device for a mining electrical explosion-proof box. Background technique [0002] Mine explosion-proof switches are mainly used in coal mine underground and other environments containing explosive gas (methane mixture) in the surrounding medium. The quality of the explosion-proof casing (ie, explosion-proof box) of the mine-used explosion-proof switch is directly related to the quality of the explosion-proof performance of the explosion-proof products and the explosion-proof safety of the place. [0003] At present, when inspecting the flameproof performance of the flameproof enclosure, two principles are usually followed. First, the explosion inside the enclosure cannot be caused to deform; secondly, the explosion inside the flameproof enclosure will not be transmitted to the outside of the box. Causes ignition of the external environ...

AI Technical Summary

Problems solved by technology

Some manufacturers use large-scale hydraulic equipment to carry out the hydraulic test of the explosion-proof box, but for some small manufacturers and R & D institutions, due to the relatively large quality of the explosion-proof box, coupled with the high cost of large-scale hydraulic hydraulic test equipment , it is difficult to accurately test the explosion-proof performance of the explosion-proof box

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