FIELD: mining.
SUBSTANCE: invention refers to mining, particularly to electric-hydraulic system of control over actuators of powered roof support of mine excavations; system of control consists of valve box containing case of block type, wherein sleeves of valves are installed; also set of valve blocks is attached to case of valve box. The valve control block is secured to the valve box and has a control line on an inlet side and set of valve control cables on an outlet side; notably, at least one pressure sensor and/or sensor of noise generated by the mechanism is located in the control block.
EFFECT: invention facilitates increased reliability of control system operation.
8 cl, 4 dwg
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