Winch telescopic hydraulic control system and engineering machinery
A hydraulic control system and hoisting technology, applied in mechanical equipment, cranes, fluid pressure actuating devices, etc., can solve problems such as loss of protection of the hoisting drive frame
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[0025] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0026] refer to figure 1 As shown, the winch telescopic hydraulic control system according to a preferred embodiment of the present invention can be used to control the telescopic movement of the boom of engineering machinery such as fire trucks. It can be understood that the hoisting telescopic control system is not limited to the telescopic control of the boom, and can also make related mechanical components perform other actions through the hydraulic cylinder 1 and the like. The hoist telescopic hydraulic control system of the present invention includes a main oil pump 2, a motor 3 for driving the telescopic boom of the hoist, a first working oil circuit L1 ...
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