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In underground drilling, the rig can automatically adjust the height of the column along with the height of the roadway, and always maintain the effective support of the top cover of the column to the roof of the roadway, so that the drilling rig can work stably, and the safety hazards of collapse of the roadway roof or floor collapse can be eliminated. Ensure the safety of workers and equipment.
Stone coal machine company for the ordinary hydraulic props of a small range of travel, can not meet the roadway height variation range of the larger weaknesses, independent research and development of this mechanical compensation hydraulic column.
The column is of reasonable design, simple structure, convenient maintenance, can be adjusted autonomously according to the height change of mine tunnel, and has the function of automatic mechanical compensation. When the rig is drilling, when the top plate collapses, the bottom plate collapses or the rig vibration causes a gap between the top cover and the top plate, the column can use the compression power of the disk spring to stretch the inner tube accordingly, and effectively perform effective support on the top plate. The column contains three sets of barrels that can be used for drilling of mine roadways with a wide range of heights.
At present, the new column has been successfully applied to the company's production of deep hole drilling rig for coal mines, greatly improving the safety of drilling operations in underground coal mines, providing safe production for coal mines in China, reducing the occurrence of gas explosions, permeable water and other unexpected accidents Technical equipment protection.
Stone coal machine tunnel rig new column was granted a utility model patent
Recently, Shijiazhuang Coal Mine Machinery Co., Ltd. independently developed a mechanical compensating hydraulic column for mine pit rigs and was granted a utility model patent by the State Intellectual Property Office.
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