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An Excavator Energy Saving System
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An energy-saving system and excavator technology, which is applied in the direction of earth mover/shovel, construction, etc., can solve the problems of many transmission links, low energy utilization efficiency, affecting the control performance of the whole machine, etc., and achieve high transmission efficiency and high energy efficiency. The effect of using
Active Publication Date: 2018-02-13
XCMG EXCAVATOR MACHINERY
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It is directly used to drive the working cylinder or motor. Although the transmission efficiency is high, it affects the control performance of the whole machine
Indirect utilization means that the recovered energy is released through the auxiliary motor and drives the hydraulic main pump together with the engine. This energy release method has no effect on the controllability of the whole machine, but there are many transmission links and the energy utilization efficiency is low.
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[0014] The present invention will be further described below in conjunction with accompanying drawing.
[0015] Such as figure 1 As shown, an energy-saving system for an excavator is mainly composed of an engine direct-drive fan drive circuit, an accumulator-controlled fan motor circuit, and an accumulator-controlled drive motor circuit, including a fuel tank 1, a variable hydraulic pump 2, and a first variable hydraulic motor 3. Quantitative hydraulic pump 4, engine 5, transfer case 6, fan 7, second variable motor 8, first on-off valve 9, first directional valve 10, second directional valve 11, second on-off valve 12, third Directional valve 13, pressure valve 14 and accumulator 15, described engine direct drive fan transmission loop is made of engine 5, transfer case 6, fan 7 and first directional valve 10, and described accumulator control fan motor circuit is composed of The accumulator 15, the first on-off valve 9, the second variable motor 8 and the second directional v...
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Abstract
The invention discloses an energy-saving system for an excavator, which is mainly composed of an engine direct-drive fan drive circuit, an accumulator-controlled fan motor circuit and an accumulator-controlled drive motor circuit, including a fuel tank, a variable hydraulic pump, a first variable hydraulic motor, a quantitative Hydraulic pump, engine, transfer case, fan, second variable motor, first on-off valve, first directional valve, second directional valve, second on-off valve, third directional valve, pressure valve and accumulator, engine direct The drive fan drive circuit is composed of engine, transfer case, fan and first direction valve. The invention directly drives the heat-dissipating hydraulic motor through the recovered energy stored in the accumulator, without other links in the middle, and the transmission efficiency is high; at the same time, it does not couple with the working oil cylinder and the motor, does not affect the control performance of the whole machine, and improves the recovery energy utilization.
Description
technical field [0001] The invention relates to an energy-saving control system, in particular to an excavator energy-saving system, which belongs to the technical field of energy-saving control of construction machinery shot blasting equipment. Background technique [0002] With the rapid development of social economy, the problems of energy shortage and environmental pollution are becoming more and more serious, and all countries have put the reduction of energy consumption and environmental protection on the agenda. At the same time, the energy efficiency ratio is one of the key parameters of hydraulic excavator market competition, so the research and application of energy-saving technology for hydraulic excavators is particularly necessary. [0003] At present, the research on oil-hydraulic hybrid technology has been included in the national 13th Five-Year Science and Technology Support Plan, such as the research and application of hydraulic hybrid energy-saving technolo...
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Application Information
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