混合动力挖掘机回转系统设计  

Design of Slewing System for Hybrid Power Excavators

作　　者：邢树鑫 林明智 戴群亮 

机构地区：[1]广西柳工机械股份有限公司

出　　处：《工程机械》2010年第12期38-40,共3页Construction Machinery and Equipment

基　　金：国家高技术研究发展计划("863"计划)重点项目(2009AA044403)

摘　　要：传统液压挖掘机采用液压马达驱动回转平台,液压马达效率较低,且回转马达启动时,由于液压泵输出的流量大于马达所需流量会产生溢流损失;在制动过程中,回转系统的动能不仅未被吸收反而转换成热能,增加了系统的散热负担。在传统挖掘机上通过引入回转电机代替原有的液压马达,一方面可提高能量利用率,另一方面可有效回收回转制动所产生的能量以达到节能的目的。Hydraulic motor is used to drive slewing platform on traditional excavators. Efficiency of hydraulic motor is low and there is a flow relief loss when the output flow from hydraulic pump is higher than the flow needed by the motor. During a braking, the kinetic energy of the slewing system is not absorbed but changed into heat energy so the heat dissipation work is added. On a traditional excavator, a slewing generator is used to replace the original hydraulic motor. On one hand, energy usage rate is increased and, on the other hand, energy generated during braking a slewing is effectively reclaimed so energy-saving is realized.

关 键 词：混合动力 挖掘机 回转系统 

分 类 号：TU621[建筑科学—建筑技术科学]