Control method of hydraulic jacking system of transporting girder vehicle
A control method and technology for transporting beam vehicles, which are applied in parallel bearing motion vehicles and other directions, can solve the problems of tilting box beams, box beams prone to distortion, and poor synchronization performance of hydraulic jacking cylinders.
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[0014] Embodiment 1: The control method of the hydraulic jacking system: the operating handle gives instructions to control the lifting of the oil cylinder; the displacement sensor monitors the lifting height of each oil cylinder in real time, and transmits the data to the controller, and the controller will send the proportional control valve Issue instructions to automatically adjust the lifting speed of the oil cylinder to ensure that the box girder does not tilt during the lifting process. Solve the problem that the synchronization performance of the hydraulic jacking cylinder is not good during the lifting process, and the box girder is prone to tilt. After selecting the opening and closing state of the ball valve, the box girder is always in four-point action and three-point support during the transportation process, which solves the problem that the box girder is prone to distortion.
[0015] The operating handle gives lift instructions to the first proportional directi...
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