Hydraulic quick-change device
A hydraulic and fast technology, applied in the direction of fluid pressure actuation device, servo motor, mechanical equipment, etc., can solve the problems of high cost, waste, high pressure, and achieve the effect of cost saving
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Embodiment 1
[0014] Such as figure 1 As shown, a hydraulic quick-change device includes a quick-change oil cylinder 1 and a quick-change control valve 2, and a pressure-relief valve 3 is arranged on the oil inlet circuit and the oil return circuit of the quick-change control valve 2, and the quick-change control valve 2 The oil inlet and oil return port of the valve 2 are also connected with the quick connector 5 through the one-way valve 4 .
Embodiment 2
[0016] Such as figure 2 As shown, a hydraulic quick-change device includes a quick-change oil cylinder 1 and the quick-change control valve 2, and a pressure-relief valve 3 is arranged on the oil inlet circuit and the oil return circuit of the quick-change control valve 2. The oil inlet and oil return port of the change control valve 2 are also connected to the quick connector 5 through the one-way valve 4, and also include an accumulator 6, which is arranged in the oil return circuit of the quick change control valve 2 An emergency control valve 7 is also arranged on the oil circuit of the accumulator 6, and the spools of the quick change control valve 2 and the emergency control valve 7 are cone spools.
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