The invention discloses a hydraulic pump device for hydraulic jacks. The hydraulic pump device comprises a first pump body, a second pump body and a third pump body which are arranged in series; the first pump body is connected to an oil tank; the third pump body is connected with a plurality of hydraulic pipes; first flow valves are arranged on the joints of the hydraulic pipes and the third pump body; the hydraulic pipes are connected to the first pump body through bypass pipes which are provided with second flow valves; and the first pump body, the second pump body, the third pump body, the first flow valves and the second flow valves are all in communication with a controller. The invention further provides a control method of the hydraulic pump device for the hydraulic jacks. By means of the hydraulic pump device for the hydraulic jacks and the control method of the hydraulic pump device for the hydraulic jacks, the defects in the prior art can be overcome, and stability is improved when a hydraulic pump drives a plurality of jacks at the same time.
Hydraulic pump device for hydraulic jacks and control method of hydraulic pump device
2016-02-03
Patent
Electronic Resource
English
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |