The position puts against the coal powered supports to put the coal mouth to be located in the middle of supports, on the caving shield.The working surface has two conveyors, tandem separately transport the loader to fall the coal and to put against the coal.Because the working surface has two set of independent coal systems, mining coal and puts the coal room disturbance to be few, may realize pick and put on parallel operations, enhances the working surface productivity.The position puts against the coal powered supports are now adopt most in our country, the distribution are abroad synthesis of support and protect equipments. Not only it was already one kind of pure maintenance work space of support and protection equipments, one kind of dependence underground pressure broken pulverized coal body, had puts the coal function the synthesis to pick the equipment.
In this design four-bar the position puts against coal powered support ZFS10000/25/45. It consists of canopy, base plate, caving shield, hydraulic legs, front and rear lemniscate bars and so on. The coal mouth is located in the caving shield, uses two conveyors, the support type is chock shield, is suitable in thick seam mining.Because the support has used four-bar mechanism, the stressful condition is good, has stable torsional ability. Therefore, the four-bar type puts against the coal support to suit in the big inclination angle coal puts against coal mining.
This support has the good stressful condition , has stable torsional ability, not easy to lose face, not easy to damage also the coal dust is small and so on,.Its deficiency is: (1) Back conveyor puts base plate, keeps off the coal board and the bay floats the coal easily to damage the trough, the hand cleaning floats the coal labor intensity to be big, the efficiency is low; (2) Because caving shields are not able to swing, only depends on put the coal organization to the big lump coal which cross falls down to carry on two times broken coal abilities unsatisfactory.
Keywords:Four-bar; put the coal in the middle of supports; powered supports