Soft rock roadway whole digging shield support

Abstract

The invention relates to a soft rock roadway whole digging shield support and belongs to the field of mining machinery manufacturing and application. The soft rock roadway whole digging shield support is composed of a semicircle protective arch, two hydraulic support pillars (1) which are arranged on the left side and the right side and a support seat. The upper ends of the two hydraulic support pillars (1) are connected with the semicircle protective arch respectively through a supporting lug (5) and a connecting pin. The lower ends of the two hydraulic support pillars (1) are respectively fixed on pillar fixing seats (6) of two sides of the support seat. Two groups of parallel telescopic guide rails (7) between the two pillar fixing seats(6) are connected to form the support seat. A pipe bending cylinder fixing seat (8) and two lateral pipe bending cylinder (9) are arranged in the middle of the middle portion of the two groups of parallel telescopic guide rails (7). The periphery of the soft rock roadway whole digging shield support can simultaneously bear pressure, compressive strength is high, bearing force is large, operation is convenient, and combination between components is tight. Through optimization design, from the aspects of convenient tunnel construction, the structure innovation and the like, Security, adaptation, technical advancement and economy of a soft rock supporting engineering are entirely improved.

Description

technical field [0001] The present invention relates to a safety support device for mine roadway, especially an improved soft rock roadway overall excavation and protection bracket suitable for various soft rock roadway suffering from ground pressure or surrounding rock pressure mining area; its structure The utility model is compact and easy to disassemble, and is especially convenient to be installed in a mine roadway, and belongs to the field of mining machinery manufacturing and application. Background technique [0002] In recent years, with the modern comprehensive mechanized mine mining, the mining depth has been increasing, and the geological conditions have become more and more complex. Not only the stress in the deep rock formations of the mine has also been increasing, especially the deformation of the soft rock in the coal mine roadway is large, and the surrounding rock is easily damaged. Excessive relaxation under the action of pressure, easy to lose stability, ...

AI Technical Summary

Problems solved by technology

For example, on January 6, 1993, the Chinese invention patent application publication number CN1067706A disclosed a kind of soft rock roadway arched hydraulic support, which is a polygonal support structure composed of multiple hydraulic rods, hydraulic cylinders, arc support plates, etc. Although the bracket has a compact structure and is easy to operate, it can resist the pressure from the top plate and the two corners of the bottom, but the pressure from the front side and the bottom surface is difficult to overcome, and there is still the possibility of accident hazards such as the side and the bottom drum

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