| 摘要 |
<p>Spray fluid is supplied to nozzles on breaker tools by a fluid pump driven by a hydraulic circuit, with fluid pump, serving a machine for extracting minerals in an underground mine. The output side of the engine cooler (10), and/or that of the cooler (12) in the hydraulic circuit, is connected to the input side of the fluid pump (11), and the output side of the latter is connected with the nozzles on the tools (2,2'). The pump, pref. with two cylinders (15,15') on a single axis, and two pistons (18) on a common piston-rod (17), may be incorporated in the hydraulic circuit of the cutter head (13,13'), required to generate setting movements.</p> |
