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        伸縮臂挖掘機的節能系統設計!

        日期:2019-08-15   來源:http://www.qxngd.com/
           傳統伸縮臂挖掘機的節能效果只能依賴于電力系統的改進和伸縮臂挖掘機運行過程中所浪費能量的有效回收,而混合伸縮臂挖掘機則可以達到節能的目的。日立在2003年建造了世界上第一臺混合動力裝載機,這對建筑車輛來說是一個里程碑式的舉動。
          The energy-saving effect of traditional telescopic arm excavator can only depend on the improvement of power system and the effective recovery of energy wasted during the operation of telescopic arm excavator. Hybrid telescopic arm excavator can achieve the purpose of energy-saving. Hitachi built the world's first hybrid loader in 2003, a landmark move for construction vehicles.
          1. 油電混合動力系統與油液混合動力系統的比較
          1. Comparison of Hybrid Power System and Hybrid Power System
          1.1油電混合動力
          1.1 Oil-Electric Hybrid Power
          在混合動力系統操作過程中,如果發動機或液壓泵能量不超過實際的輸出能量,然后在操作引擎將驅動液壓泵,和多余的能量轉換后的ISG電機電容充電,當液壓泵運行時需要太多能量,發動機不能滿足能源的需求,電容將會同引擎來提供能量的操作液壓泵。伸縮臂挖掘機回轉系統由原來的回轉電機改造為ISG電機驅動,使回轉系統制動時,ISG能將制動能量轉化為電容充電能量。伸縮臂挖掘機動力臂產生的勢能通過液壓馬達和馬達系統回收,轉換后的能量儲存在電容器中。大修改后的混合動力系統的結構特點是,當系統所需的實際負載功率大,ISG電機可以幫助引擎,減少發動機的功率輸出壓力,因此發動機的燃料消耗將永遠在一個合理的位置。當系統負載功率要求較低時,通過ISG回收多余的能量,并對電容器進行充電,使電機運行也能達到最佳運行效果。
        加長臂挖掘機出租
          In the operation of hybrid power system, if the energy of engine or hydraulic pump does not exceed the actual output energy, and then the ISG motor capacitor is charged by the operating engine after converting the driving hydraulic pump and surplus energy. When the hydraulic pump is running, it needs too much energy, and the engine can not meet the energy demand, the capacitance will be increased with the engine. Operating hydraulic pump for energy supply. The rotary system of telescopic boom excavator is changed from the original rotary motor to ISG motor. When the rotary system is braked, ISG can convert braking energy into capacitor charging energy. The potential energy generated by the power arm of the telescopic arm excavator is recovered through the hydraulic motor and motor system, and the converted energy is stored in the capacitor. The structural feature of the modified hybrid power system is that when the actual load power required by the system is large, ISG motor can help the engine to reduce the power output pressure of the engine, so the fuel consumption of the engine will always be in a reasonable position. When the load power requirement of the system is low, the excess energy is recovered by ISG and the capacitor is charged, so that the motor can also achieve the best operation effect [2].
          1.2油液混合動力
          1.2 Oil Hybrid Power
          伸縮式臂式挖掘機回轉系統制動時,液壓馬達會溢出并發熱,造成能量損失。因此,使用蓄能器回收和儲存溢流能量是合理的。所以在電力系統的實際運行需要更大,可以通過回收蓄能器補充,同時也在下降的過程中從高動力臂將產生一定的勢能,導致石油井架液壓缸回油口的上升,這個時候可以把石油復蘇的壓力,通過蓄電池時,系統需要大量的石油回收油液壓系統。
          When the rotary system of telescopic arm excavator is braked, the hydraulic motor will overflow and heat, resulting in energy loss. Therefore, it is reasonable to use accumulator to recover and store overflow energy. Therefore, the actual operation of the power system needs more, which can be supplemented by the recovery accumulator. At the same time, in the process of descending, the high power arm will generate certain potential energy, which will lead to the rise of the oil return port of the hydraulic cylinder of the oil derrick. At this time, the pressure of oil recovery can be put. When the system passes through the battery, it needs a lot of oil recovery oil. Hydraulic system.

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