【正文】 g movement, thus pleting the coal loaded with coal movements. Support fixed institutions Support institutions fixed by the former support, and stabilize the column and Baojin device ponents. Charging for work, installed on the rack by the front of the former roadway in support of support on the floor, installed in the rear of the racksupporting stability in the tunnel roof, installed in the rack below the fuselage will be installed Baojin And the chute together to ensure that the fuselage will not move around and dumping. operating agencies Institutions run by walking the track and chute walking institutions. Walk the track body is designed for ease of transport machinery, to gauge the track for 600 mm. Chute body is to facilitate the running machine at work on the mobile chute designed. Charging machines at work, riding on the 40 t Liuzi the chute, the bucket will face rake with the loaded coal chute, Liu Zi will Meiyun to face. Chute run institutions from operating motor, take the initiative to round, driven round ponent. Walk through a gear motor slowdown will force the initiative passed round, thus realizing the machine forward and backward. The work pressure of motor running 12. 5M Pa. hydraulic system Hydraulic valve block from the hydraulic system, hydraulic piping and other ponents, cantilever stretching, lifting, rotating, the machine running, the winch, and so on are positive and hydraulic valve block to control. 4. Charging for the work process Scalable cantilever loaded coal principle of the work shown in Figure 2. As with coal at work to be powered by the emulsion medium, it also needs pumping stations equipped with a set of emulsion. Charging the work carried out before mencement emulsion pumping station will be installed near the coaltodoor opened on the appropriate location, operation of the institutions supporting fixed machine fixed, and that is to start working with coal. Figure 2 scalable cantilever with the work principle of coal First of all cantilever will extend to the appropriate length and height, lightload operation of winch will rake bucket of coal Meidui pulled down with coal, and then operated heavy winch will rake will fight back loaded coal chute, it is so cycles, until Coal will Zhuangwan. The plane loaded with coal for the coal in front of the 8 270 mm, about 5 850 mm, height 4 500 mm. 5. Underground industrial test Scalable cantilever with the coal industry underground test in the Jincheng Coal Industry Group of Phoenix Mountain coal mine recovery, in 3314 Southface position, seam thickness of 6. 32 m, bulk density 1. 5 t246。m 3, simple geological conditions, warehouses Lane section of the 2. 2 m 2. 4 m, a frictionplate girder supporting, not spontaneous bustion of coal and coal dust nonexplosive. Face the way for the Warehouse mining exploitation. Warehouse is the socalled exploitation of mining in the region first excavation of a cut in warehouses and then in the face from the field open for the top pick, followed by a return to positions in the coal mining process: maintenance of the entrance of Long → Dayan → charge → Blasting back shelf → → → shrink from coal chute. For the top