| 摘要 |
<p>A computer controlled system is provided for regulating the flow of coal into a railway car or the like. The coal flows into the car through a loading chute. When the total weight in the car reaches the desired weight as determined by spaced platform scales, the computer control shuts off the flow by actuating the flow gate. The difference in the weight of the front and rear car trucks is noted and the inclination of the loading chute is regulated up or down by the computer control through operation of a hydraulic cylinder. If the chute is raised, the height of the coal within the car is raised and with all factors the same, the front of the car will be loaded more. As the chute is lowered, the height of the coal that can enter the car will be less and, thus, a shift of the weight to the back of the car can be effected. In accordance with the computer reading for each car, the position of the chute can be regulated for each following car of the same size and height. The computer remembers the height for the optimum loading position for each size car in the train. The front and rear ends and the height of each car are detected by a photocell circuit that provides an input to the computer. The position of the loading chute regulates the height of the coal in the car since the bottom lip of the chute cuts off the flow of the coal when the coal reaches the height of the lip. The coal will back up in the chute and the lip will simply smooth off the top of the coal thus regulating the height.</p> |
