FIELD: engines and pumps.
SUBSTANCE: proposed hydraulic drive is designed to drive press forging machinery, agricultural and construction machinery, arc steel-smelting equipment, etc. Proposed hydraulic drive comprises several hydraulic engines with separate control hydraulic distributors with their pressure channels communicated with pressure line of pumps each being provided with safety valve and communicated via individual check valve with the pumps common pressure manifold communicated via connecting hydraulic device with hydraulic accumulator liquid chamber. Said manifold is communicated with pressure pipeline. Note here that said manifold is communicated with pressure pipeline via remote-control throttling hydraulic device, while pressure channel of each pump is communicated with pressure line via separate auxiliary hydraulic distributor. The latter has flow section is shut off in one working position between pump pressure channel and pressure pipeline.
EFFECT: simplified design.
1 dwg
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