装载机液压系统过热问题的研究  

A Study on Overheat Problem in Loader Hydraulic System

作　　者：张毅[1] 俞小莉[1] 谭建勋[1] 沈瑜铭[1] 齐放[1] 刘震涛[1] 赵骆伟 黄旭就 罗维 廖时平 

机构地区：[1]浙江大学玉泉校区机能学院动力机械研究所,310027 [2]柳工机械股份有限公司

出　　处：《工程机械》2005年第6期47-50,共4页Construction Machinery and Equipment

摘　　要：介绍了某轮式装载机液压系统的过热问题,通过整车热平衡试验台对液压系统散热性能进行试验研究,找出其过热的原因,并提出一些改进的技术措施,如合理布置散热器、采用吸风式风扇和改变风扇驱动方式等。对改进后的液压散热系统进行计算和实车试验,结果表明改进后的系统符合设计要求。对试验方法及系统组成也做了介绍。Overheat problem in a loader hydraulic system is described in the article. The heat dissipating performance of hydraulic system is tested and studied on a heat balance test bench. Causes of overheat are identified and some technical countermeasures are suggested, such as rational radi ator layout, adopting suction fan and changing fan's drive mode, and etc. Calculation and prototype test are conducted on improved heat dissipating system, the result showed that the improved system met the requirements of design. The test method and system composition are described also.

关 键 词：液压系统 过热问题 轮式装载机 试验研究 散热性能 技术措施 合理布置 驱动方式 实车试验 散热系统 设计要求 试验方法 试验台 热平衡 散热器 吸风式 风扇 

分 类 号：TH243[机械工程—机械制造及自动化]