Disclosed are a multi-cylinder synchronous energy-saving and efficient hydraulic lift system and a method of the system, which are applicable to lift systems such as hydraulic lifts and construction elevator platforms, etc. The system comprises an oil make-up circuit, a volumetric speed control and energy recovery circuit, a manual lifting circuit, a synchronous locking circuit, hydraulic cylinders, and an inclination sensor, wherein, the oil make-up circuit is configured to make up inadequate hydraulic oil in a closed loop system incurred by regulation with the synchronous locking circuit and system leakage, and reduce oil temperature rise; the volumetric speed control and energy recovery circuit is configured to provide power to the system, regulate the speed, and recover energy; the manual lifting circuit is configured to lift and lower the platform manually when the system has faults; the synchronous locking circuit is configured to control the plurality of hydraulic cylinders to ascend/descend synchronously and lock up the hydraulic cylinders when the platform is in a still state; the inclination sensor detects the position of the platform and feeds back the position information to a control center in real time, so as to realize closed-loop control. The system is efficient and energy-saving, and realizes energy recovery and accurate synchronization among the hydraulic cylinders, and the lifting platform is highly tolerant to unbalanced load, operates stably, and has high reliability.
A MULTI-CYLINDER SYNCHRONOUS ENERGY-SAVING AND EFFICIENT HYDRAULIC LIFT SYSTEM AND METHOD THEREOF
UN MECANISME HYDRAULIQUE EFFICACE ET ECOENERGETIQUE SYNCHRONE MULTI-PISTON ET METHODE ASSOCIEE
2019-05-14
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS / 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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method
Europäisches Patentamt | 2015
|Europäisches Patentamt | 2018
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