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A platform for research: civil engineering, architecture and urbanism
Hydraulic excavator movable arm potential energy recovery system
The invention provides the technical scheme of a hydraulic excavator movable arm potential energy recovery system. The scheme also comprises two main control oil cylinders and an auxiliary oil cylinder which are used for driving a movable arm to move, wherein the auxiliary oil cylinder is arranged in parallel with the two main control oil cylinders; cylinder rods of the two main control oil cylinders and a cylinder rod of the auxiliary oil cylinder synchronously move; a hydraulic pump is communicated with rod cavities and rodless cavities of the two main control oil cylinders and a rod cavity of the auxiliary oil cylinder by a second reversing valve; and a rodless cavity of the auxiliary oil cylinder is communicated with an energy accumulator. According to the invention, the potential energy produced when the auxiliary oil cylinder descends can be recovered in the energy accumulator; the energy accumulator releases the stored potential energy when the movable arm ascends; and compared with the prior art, the whole hydraulic system has the advantages that the energy consumption is greatly reduced; heating is reduced; and the reutilization of energy is realized.
Hydraulic excavator movable arm potential energy recovery system
The invention provides the technical scheme of a hydraulic excavator movable arm potential energy recovery system. The scheme also comprises two main control oil cylinders and an auxiliary oil cylinder which are used for driving a movable arm to move, wherein the auxiliary oil cylinder is arranged in parallel with the two main control oil cylinders; cylinder rods of the two main control oil cylinders and a cylinder rod of the auxiliary oil cylinder synchronously move; a hydraulic pump is communicated with rod cavities and rodless cavities of the two main control oil cylinders and a rod cavity of the auxiliary oil cylinder by a second reversing valve; and a rodless cavity of the auxiliary oil cylinder is communicated with an energy accumulator. According to the invention, the potential energy produced when the auxiliary oil cylinder descends can be recovered in the energy accumulator; the energy accumulator releases the stored potential energy when the movable arm ascends; and compared with the prior art, the whole hydraulic system has the advantages that the energy consumption is greatly reduced; heating is reduced; and the reutilization of energy is realized.
Hydraulic excavator movable arm potential energy recovery system
LI ZHAOLIANG (author) / LI YONGGANG (author) / ZHANG JINGYAN (author) / LIU JUN (author) / GUO LIJIN (author) / XU YUELEI (author) / ZHANG JIAN (author) / QIN XIAOBING (author) / MA JIANNING (author)
2015-10-21
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING
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