Isolated movement for mine flameproof feed switch

Abstract

The invention relates to an isolated movement for mine flameproof feed switch, and belongs to the technical field of mine flameproof type feed switch isolation type core. The technical problems to besolved are as follows: providing an isolation type machine core for a mine flameproof feed switch; The technical scheme adopted for solving the technical problem is as follows: comprising an encapsulated type machine core, wherein the encapsulated type machine core is encapsulated by a machine core housing, the front end of the machine core housing is provided with an encapsulated type pole, and amachine core cover is arranged at the rear part of the machine core housing; The encapsulated machine core is arranged on the guide rail, and the guide rail is in contact with the bottom of the machine core shell through the wheel protecting groove; The front end of the guide rail is also provided with a socket board, the socket board is provided with a plug seat, and the socket hole on the plugseat is movably connected with the encapsulated pole; The two sides of the encapsulated type movement are also provided with plucking hooks, and the middle part of the guide rail is also provided witha plucking shaft which is inserted into the plucking hook. The utility model is used for a mine flameproof feed switch.

Description

technical field [0001] The invention discloses an isolated movement for a mine explosion-proof feed switch, and belongs to the technical field of the mine explosion-proof feed switch isolation movement. Background technique [0002] With the completion of the merger and reorganization of coal resources, the coal industry has formed a pattern of coexistence of large groups, coal mines have become more group-oriented and large-scale, the coal output of a single wellhead is increasing, and the requirements for work equipment are more integrated and humanized. Higher requirements will be put forward for the maintenance and replacement of equipment and safety performance; especially for the explosive gas containing methane coal dust mixture in the coal mine underground and the surrounding environment medium, the explosion-proof enclosure switch (such as explosion-proof vacuum switch, explosion-proof vacuum electromagnetic starter) is more important. [0003] When the door of the...

AI Technical Summary

Problems solved by technology

[0003] When the door of the traditional explosion-proof enclosure in the prior art is opened, the movement realizes the power-off of the main circuit breaker (main contactor) through the control circuit, and at this time the incoming line end of the main circuit breaker (main contactor) is still charged In general, the door of the explosion-proof enclosure can be safely opened when the main circuit breaker (main contactor) is powered off, but sometimes the control circuit of the movement or the main circuit breaker (main contactor) inevitably fails, such as the main The contact of the vacuum tube of the circuit breaker (main contactor) is stuck. At this time, the door of the explosion-proof enclosure will be in a dangerous live state when it is opened, which will bring electric shock danger to the maintenance staff and pose a safety hazard.

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