Automatic control device for extending and retracting framework air cylinder

Abstract

The invention discloses an automatic control device for extending and retracting a framework air cylinder. The automatic control device comprises a cylindrical guide device (1) with a horn mouth. A flange plate (1a) is disposed at the left end of the guide device (1). A control lock support part (11) and a detachable control lock protecting shell (3) are welded outside the side wall of the guide device (1). The detachable control lock protecting shell (3) covering a control lock component (2) is connected with the control lock support part (11) through bolts. By the automatic control device, traditional manual framework air cylinder extending and retracting is replaced by automatic framework air cylinder extending and retracting, work intensity of workers is relieved greatly, and work efficiency is increased.

Description

technical field [0001] The invention relates to roadway excavation and road tunnel construction equipment, such as an automatic control device for retracting and retracting skeleton air ducts according to the advance and retreat of dust removal equipment and dust suppression devices during the construction of coal mine underground excavation working faces and mine tunnels. Background technique [0002] A large amount of dust will be generated during roadway excavation and road tunnel construction, which will seriously endanger the health of workers. In order to effectively solve the problem of dust control, the dust reduction measures currently used mainly include high-pressure spraying, water sprinkling for dust reduction, long pressure and short pumping and other dust removal methods; However, because most of the working faces are limited by conditions, there are obvious requirements for water consumption. Neither high-pressure spraying nor watering can be used to reduce du...

AI Technical Summary

Problems solved by technology

[0002] A large amount of dust will be generated during roadway excavation and road tunnel construction, which will seriously endanger the health of workers. In order to effectively solve the problem of dust control, the dust reduction measures currently used mainly include high-pressure spraying, water sprinkling for dust reduction, long pressure and short pumping and other dust removal methods; However, because most of the working faces are limited by conditions, there are obvious requirements for water consumption. Neither high-pressure spraying nor watering can be used to reduce dust. At present, the skeleton air duct matched with the long pressure and short suction dust collector can only be extended and retracted manually, which wastes a lot of manpower and material resources, and virtually increases the production burden of workers.

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