| 摘要 |
mining industry, mainly, coal stoping with use of mining complexes with powered supports, shearers and mobile face conveyers. SUBSTANCE: mobile face belt conveyer includes sectional flight connected with support by rams, conveying member with end or intermediate drives and means of flight advance control with servo hydraulic units of supply of rams provided with controlling levers. Bodies of servo hydraulic units are secured to flight sections. Conveying member is made in the form of rigid horizontal metal or some other fire-resistant belt installed for motion over bottom of upper or lower pan located inside flight sections capable of horizontal displacement relative to said sections. Controlling levers of servo hydraulic units are located for interaction with end edges of belt or with pans embracing said edges using lower or upper belt run as transducer of flight rectilinearity or driving member of hydraulic amplifier of flight advance. EFFECT: higher productivity, reduced power consumption, improved coal grade without excessive reduction of coal lump sizes during conveyance. 2 cl, 3 dwg |
