推土机节能传动液压系统研究  

A Discussion on Hydraulic Drive Sys-tem for Power Saving in Bulldozers

作　　者：李庆瀛[1] 杨金国[1] 韦海云[1] 胡德利[1] 

机构地区：[1]山推工程机械股份有限公司

出　　处：《工程机械》2017年第9期39-43,共5页Construction Machinery and Equipment

摘　　要：针对当前推土机传动液压系统存在功率损失较大,功率利用效率较低等问题,提出一种节能传动液压系统。通过研究系统各功能单元所需压力、流量大小,确定系统所需总功率,同时合理分配系统流量及压力,降低液压系统功率损失,提高发动机燃油利用效率,达到整机节能的目的。Problems exist at present with the bull-dozer's hydraulic system in the pow er transm ission, i.e.,great loss in power, lower availability of the power, and others, therefore, a hydraulic system for power saving in the power transmission has been provided. The total power needed for the system has to be defined thru studying on pressure level and flow size needed for each function unit in the system, while logically distributing the flow rate and pressure so as to decrease power loss to the system and to increase fuel availabilityof the engine, thus attaining the goal of energy saving for the whole machine.

关 键 词：推土机 节能 液压 

分 类 号：TH137[机械工程—机械制造及自动化]