Подъемный ленточно-колесный конвейер с промежуточным цевочным приводом

Abstract

Introduction. The article discusses the design of an improved belt-wheel conveyor with an intermediate pinion drive. The use of such a belt-wheel conveyor eliminates the need to use mobile crushing units and intermediate conveyor loading devices. The transfer of the drive from the end sprockets to the intermediate ones installed on the lifting section of the conveyor route significantly reduces the efforts in traction chains and running rollers and reduces the volume of mining and capital works. The introduction of a planetary differential mechanism between both drive sprockets ensures an even distribution of the traction load between both traction chains. At the same time, the possibility of misalignment of the running supports and the associated increased wear of the running rollers is excluded. Conveyor transport is the most effective means for lifting rock mass. The fundamental difference between belt-wheeled conveyors is the exclusion of rolling of the load-bearing belt along stationary roller supports. The joint movement of the conveyor belt and the closed loop with running supports provide the possibility of moving large-lump mining loads with piece sizes up to 1200 mm or more, which eliminates the need for secondary crushing of loads in mobile crushing units. The purpose of the research: the use of an improved belt-wheel conveyor with an intermediate pinion drive for the transportation of large-sized cargoes. Research methodology. A comparative analysis of the designs and parameters of lifting conveyors was carried out in order to ensure non-overloading lifting of loads from deep quarries with a further increase in depth. Research results and discussion. As a result of a comparative analysis of the conveyor designs and parameters, the most optimal variant of a belt-wheel conveyor with an intermediate pinion drive using a planetary differential mechanism was established. Conclusions: 1. Studies of the design of an improved belt-wheel conveyor with an intermediate pinion drive have been carried out. 2. It is established that the introduction of a planetary differential mechanism between both drive sprockets ensures an even distribution of the traction load between both traction chains. 3 It was found that the transfer of intermediate drives of lifting belt-wheel conveyors from the head end sprockets to the sprockets installed on the upper section of the bend of the conveyor route can significantly reduce the load on the traction chains and running rollers of the supports. 4. It is determined that the transfer of the drive from the end sprockets to the intermediate ones installed on the lifting section of the conveyor route significantly reduces the efforts in traction chains and running rollers and reduces the volume of mining and capital works. 5. It is confirmed that the introduction of a planetary differential mechanism between the shafts of the drive sprockets ensures a uniform distribution of the drive force between the two traction chains, excluding the possibility of misalignment of the running supports and the associated increased wear of the running rollers.