Pure water hydraulic drive system of lifting platform
A driving system and lifting platform technology, applied in the direction of fluid pressure actuators, accumulator devices, servo motors, etc., can solve pollution, flammability and other problems, to improve safety, reduce installed power, and high reliability Effect
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[0012] as attached figure 1 As shown, the pure water hydraulic drive system of the lifting platform of the present invention includes: filter 1, plunger pump 2, frequency conversion motor 3, overflow valve 4, first two-position two-way reversing valve 5, one-way valve 6, first Proportional valve 7, accumulator 8, second two-position two-way reversing valve 9, hydraulic control check valve 10, second proportional valve 11, three-position four-way reversing valve 12, hydraulic cylinder 13, water tank 14.
[0013] Among them, the variable frequency motor 3 is connected with the plunger pump 2 to drive the plunger pump 2 to work, and the water inlet T of the filter 1 1 Connected with the water tank 14, the water outlet P of the filter 1 1 With the suction port T of the plunger pump 2 2 Connected, outlet P of plunger pump 2 2 Inlet P with overflow valve 4 3 , the water inlet P of the first two-position two-way reversing valve 5 4 , Water inlet P of check valve 6 5 , the contr...
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