FIELD: engines and pumps.
SUBSTANCE: device relates to hydraulic drive of open-pit drilling machine. Proposed device consists of automatic displacement control device and manual displacement control device. The former ensures volumetric control over hydraulic drive in drilling rocks, while the latter allows remote stepwise adjustment of hydraulic mechanism speed and throttling drilling. It differs from known designs in that drilling conditions are selected by operator depending upon particular operating conditions.
EFFECT: higher efficiency and repairability.
8 cl, 9 dwg
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| APPARATUS FOR METERING DEVICE FOR SPRAYER | 0 |
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