The paper presents and analyzes the construction of the movable-belt conveyor on sliding supports developed at the Mining Transport Machine Department, the Saint Petersburg State Mining Institute. Its advantages over the existing analogues including conveyors with magneticcushion supports are substantiated.
A multi-drive belt conveyor (MNLC) when analyzing its reliability can be considered as an object consisting of two structural elements: the drive system and the complex of all other parts of the conveyo
In the proposed designs of vacuum drives of belt conveyors, having increased frictional traction ability, the actuator is a drum or a traction belt. Obligatory design elements of these actuators are chambers of reduced air pressure, permanently communicated during operation of vacuum actuators with grooves-channels in the working surface of drums or traction belts, which are in frictional interaction with the load-carrying belt of the conveyor. The presence of such chambers complicates the design of vacuum drives.
The distribution of loads between the drives of a multi-drive belt conveyor has a significant impact on the amount of tension of the load-carrying belt, especially in the case of uneven loading of the conveyor along the length.
In recent years in countries with developed mining industry (USSR, USA, FRG, Japan, Czechoslovakia) intensively conducted work on the creation and implementation of multi-drive belt conveyors (MDBC), allowing to transport bulk goods over significant distances without overloading.
The tractive capacity of the driving vacuum drum with a perforated shell is determined by the equation ...
Improvement of conveyor transport of the mining industry both at open and underground mining goes on the way of steady increase in the length of belt conveyors in one stack in order to reduce the number of reloading points and transportation links in the conveyor lines ...
In calculations of horizontal and working on lifting belt conveyors the value of the preliminary tension of the belt is determined, as a rule, the condition of the absence of slippage of the belt on the drive drum and calculated by the well-known formula...
At the experimental site of the trust “Chiaturmanganese” a brake bogie for automatic speed control of mine trains on steep downhill slopes was tested, in which for actuation of the mechanical braking system an articulated-lever drive mechanism is used, providing reliable adhesion of the drive rollers with the side surfaces of the rail.
