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 operation of belt conveyors installed in mines, mines, concentrators, often observed belt slippage on the drive drums, even in cases where the belt conveyor is mounted in strict compliance with applicable rules and its operating parameters (load, belt tension, etc.) correspond to the calculated.
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.
On the turn of a pneumatic wheeled machine equipped with motor-wheels or side drives, in the absence of special means of regulation of each driving wheel or driving wheels of different sides, the distribution of load between the wheels depends on the mechanical characteristics of the drives, on the tires of the pneumatic wheeled machine and on the radius of turning of the machine, which, in turn, affects the coordinates of the center of turn ...
The uniform circular motion of an elastic wheel can be represented as a complex motion consisting of straight-line rolling and uniform rotation about a vertical axis passing through the center of contact, which in general is displaced relative to the midplane of the wheel due to the action of the lateral force ...
In 1975 at coal mines was introduced a system of accounting of repairs and replacements of parts of mining machines. Accounting was to be carried out by means of orders-reports, which indicate the name and number of parts to be replaced and the downtime of the equipment associated with the repair work ...
In the practice of operation of mining enterprises there are widespread cases when the whole cargo flow from a group of mines to consumers follows through one assembly station. In such a scheme, the total cost of transportation does not depend on the interconnection of consumers and suppliers (at given volumes of production and consumption of individual production units).
Semi hopper storage with slotted outlet is a type of modern automated large-capacity storage. The criterion for selecting the main parameters can be taken as a minimum cost of construction of the warehouse, since the change in the length L and cross-section F of the stack has a relatively small effect on the operating costs.
Parameters of the short-circuited electric motor for the drive of the running gear and design parameters of mine self-propelled cars on pneumatic wheels are in the following dependence ...
