The invention relates to a hydraulic brake system of a marine winch. The hydraulic brake system comprises an oil pump (1), a filter (2), a one-way valve I (3), a one-way valve II (12), a throttling valve (9), a reversing valve I (7), a reversing valve II (11), an overflow valve I (4), an overflow valve II (10), an energy accumulator (5), a pressure switch (6) and an oil cylinder group (8). After passing the oil pump (1) and the filter (2), one part of oil returns to an oil tank through the overflow valve I (4), and the other part of the oil passes the one-way valve I (3), the energy accumulator (5), the pressure switch (6) and the throttling valve (9). A certain volume of pressure oil stores in the energy accumulator (5). The pressure switch (6) controls the pump to stop and start according to the pressure of the energy accumulator. The throttling valve (9) adjusts the pressure and flow fluctuation to guarantee that a brake works stably. The oil cylinder group (8), the reversing valve I (7) and the reversing valve II (11) form a semi-pressure brake loop which is used for preventing second sliding down and jittering during starting and stopping. The oil cylinder group (8) and the reversing valve II (11) form a pressure relief loop. When the winch works, the brake system is turned on. Actual application indicates that the hydraulic brake system is low in work energy consumption, high in work efficiency, and stable in winch ascending, descending and braking.
Hydraulic brake system of marine winch
2015-04-01
Patent
Elektronische Ressource
Englisch
Marine double-winch hydraulic power distribution system
Europäisches Patentamt | 2023
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