Everyone knows that the acrow prop for the working face of large-inclined coal seams, because the coal seam inclination angle is greater than 35 °, the support is easy to tilt and fall, and at the same time, the slumped coal (gangue) will roll toward the tilt, causing downwards to the tail of the support. The impact force caused the support to tilt, and in addition to the high-inclined coal seam, in addition to the top plate breaking and rupturing, the bottom plate may also cause damage and slippage, which led to the instability of the working surface support system.
Acrow Prop
Therefore, the anti-skid function of the single machine (rack) alone can not solve this stage well. The acrow prop must also combine the adjacent multiple pairs of brackets into a single anti-skid, non-slip group. Scraper conveyors form another group. The end-to-end bracket and the scraper conveyor are combined into another sliding group, so that these sliding groups form a non-slip system. When the single machine (rack) is tilted (down), the non-slip group is blocked, and when the non-slip group is sliding, the non-slip system is prevented.
