翻译部分英文原文Scalable cantilevered Development of Coal1. abstractScalable cantilever loaded coal-mining conditions applicable to the Warehouse, the main increase Warehouse exploitation of resources recovery and reduce labor intensity of workers, to increase the safety and reliability of operations at the scene. Key words: scalable; Coal; Warehouse mining; recovery2. Introduction With the extension of the mine length of service, increase productivity, the mines remaining recoverable reserves will be gradually reduced, the market competitiveness will continue to decline. In our country there are many old state-owned mine due to depleting resources, production of convergence of tension, conflict and so difficult to replace mine, a decline in production, lower benefits, the operating difficulties of the situation. In order to increase production to mitigate pressure on the operators to extend the mine life, most coal mines has increased the corners of coal, coal-mining efforts. Against the mine in the coal mining corner, when the widespread use of coal-mining law of the Warehouse to the characteristics of Jincheng Coal Industry Group under the Technology Center at the actual needs, through research and development applicable to the Warehouse under the conditions of exploitation of scalable with cantilevered Coal,3. With the structure of coal Scalable cantilever loaded coal mainly by the rack, cantilever, Rotary, walking, supporting fixed, carrying bodies, hydraulic systems and other parts of composition, its shape structure see Figure 1.1 - the crane 2 - Doo- 3 - before the support of 4 - emulsion winch 5 - walking mechanism 6 - Rotating bodies 7 - control valve 8 - support after 9 - rack Figure 1 scalable with cantilevered structure of the coal 3.1 rack Rack is loaded coal-bearing the main components, all components are installed in the rack. 3.2 cantilever Cantilevered from an arm, two arms, three-arm, two-cylinder telescopic emulsion composition, and between the turret connected with Pin. As three-arm nested in the two arms, two nested in one arm arm, stretching emulsion in the secondary role of the cylinder, the cantilever stretching movements can be realized, stretching capacity of 3 670mm 8 270mm. On the other hand, two fixed rotating platform of change in the role of Jack, the cantilever can achieve take-off and landing movements, lifting capacity of: 1360 mm 5 000mm.3.3 Rotary agencies Rotating bodies from the turret and fixed rack in the lower side of the two rotary jack in the rotating platform equipped with cantilever, winch and other parts of the emulsion. Rotary jack in the drive, the turret driven cantilever to do about the direction of rotation, left and right direction of the swing angle can reach 45 . 3.4 loading mechanism Emulsion carrying bodies from the winch and rake bucket component. Emulsion winch 2 Taiwan, one for heavy use, another Taiwan for a light-load; characterized by the emulsion motor powered motor rated pressure of 12. 5M Pa, traction 1.0-2.0 speed, traction 10 kN 20 kN. Trailing bucket volume is 0.5 cubic meters of coal loaded containers from the emulsion winch drag achieve reciprocating movement, thus completing the coal loaded with coal movements.3.5 Support fixed institutions Support institutions fixed by the former support, and stabilize the column and Baojin device components. 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 rack-supporting 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.3.6 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 component. 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. 3.7 hydraulic system Hydraulic valve block from the hydraulic system, hydraulic piping and other components, 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 befor