The invention discloses a multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method which are applicable to lifting systems such as a hydraulic lift and a construction lifting platform. The system comprises an oil compensating loop, a volume speed adjusting and energy recovery loop, a manual lifting loop, a synchronous locking loop, a hydraulic cylinder and an inclined angle sensor. The oil compensating loop is used for compensating for hydraulic oil in a closed-loop system and decreasing the temperature rise of oil, wherein the lack of hydraulic oil is caused by adjustment of the synchronous locking loop and system leakage. The volume speed adjusting and energy recovery loop provides power, speed adjustment and energy recovery for the system. The manual lifting loop is used for manually lifting a platform when the system breaks down, and the synchronous locking loop is used for locking an oil cylinder when multiple hydraulic cylinders are adjusted to move synchronously and the platform is static. The inclined angle sensor detects the pose of the platform in real time and feeds back the pose to a control center to achieve closed-loop control. The system is efficient and saves energy, energy recovery and multi-cylinder accurate synchronization are achieved, the lifting platform is strong in unbalance loading resistance, running is stable, and reliability is high.
Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method
2015-12-23
Patent
Elektronische Ressource
Englisch
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / 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 |
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