| 摘要 |
FIELD: mining. ^ SUBSTANCE: invention refers to mining, particularly to actuators of shaft loading machines. The actuator of the shaft loading machine consists of six-blade grab, of a hydro-lift, of two poles and two control hydro-jacks. The six-blade grab connected to the hydro-lift by means of a ball hinge is designed to perform a limited turn in vertical plane and a complete turn in horizontal plane and also is designed to be fixed at any position relative to lengthwise axis of the actuator by means of the control hydro-jacks. The control hydro-jacks are connected to poles, rigidly secured on the case of the hydro-lift by means of the ball hinges, while with their rods they are connected to brackets of the grab cross beam by means of single hinges. ^ EFFECT: elimination of grab deviating from preset position, also possibility to scoop and load rock mass at walls of shaft at final phase of loading, which increases efficiency of operation. ^ 2 dwg |
