斗轮式堆料机液压系统常见故障分析及液压系统改造
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摘要
斗轮式堆取料机是大型露天散料处理成套设备,在使用过程中常出现故障。对斗轮堆料机液压系统故障现象进行分析,提出了改进液压系统方案,优化后的回路不仅可以保证大臂在任意位置可靠停留,而且通过AMESim仿真实验,验证其在工作过程中,启动更灵敏,平稳性更高。经过油温验算,证明改造后的仰俯机构回路可以满足机器高温环境工作。同时对张紧机构液压系统进行优化,满足了皮带自动张紧及延长液压泵使用寿命等性能。
A bucket wheel heaping machine is a large-scale open-air bulk processing equipment, and often malfunctions in the process of use. A fault phenomenon of hydraulic system of bucket wheel stacker is analyzed, and an improved hydraulic system scheme is put forward. The optimized circuit can not only ensure that the arm stays reliably in any position, but also verify that it's more sensitive to start and more stable in working process through AMESim simulation experiment. After checking oil temperature, it is proved that the retrofitted loop of upside-down mechanism can meet the high temperature environment of the machine. At the same time, the hydraulic system of the tensioning mechanism is optimized to meet the requirements of automatic belt tensioning and prolonging the service life of hydraulic pump.
A bucket wheel heaping machine is a large-scale open-air bulk processing equipment, and often malfunctions in the process of use. A fault phenomenon of hydraulic system of bucket wheel stacker is analyzed, and an improved hydraulic system scheme is put forward. The optimized circuit can not only ensure that the arm stays reliably in any position, but also verify that it's more sensitive to start and more stable in working process through AMESim simulation experiment. After checking oil temperature, it is proved that the retrofitted loop of upside-down mechanism can meet the high temperature environment of the machine. At the same time, the hydraulic system of the tensioning mechanism is optimized to meet the requirements of automatic belt tensioning and prolonging the service life of hydraulic pump.
引文
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[8] 秦大同,谢里阳.现代机械设计手册液压传动与控制设计[M].北京:化学工业出版社,2013:38,40,118. QIN Datong, XIE Liyang. Modern Mechanical Design Manual Hydraulic Transmission and Control Design [M]. Beijing: Chemical Industry Publishing House, 2013:38,40,118.
[2] 王敏刚.悬臂取料机斗轮液压系统改造[J].机械工程师,2015,(4):268. WANG Mingang. Revamping of Bucket Wheel Hydraulic System of Cantilever Feeder [J]. Mechanical Engineer, 2015,(4):268.
[3] 万会雄,刘永健.悬臂式斗轮取料机变幅机构液压系统的故障分析与改进措施[J].液压与气动,2001,(4):42. WAN Huixiong, LIU Yongjian. Fault Analysis and Improvement Measures of Hydraulic System of Luffing Mechanism of Cantilever Bucket Wheel Feeder [J]. Chinese Hydraulics & Pneumatics, 2001,(4): 42.
[4] 孙晓江.DQL1000.35斗轮机前臂架颤动原因分析及解决措施[J].哈尔滨轴承,2010,31(2):54-55. SUN Xiaojiang. Cause Analysis and Solution Measures of DQL1000.35 Bucket Wheel Forearm Tremor [J]. Harbin Bearing, 2010,31(2):54-55.
[5] 张福臣.液压与气压传动[M].北京:机械工业出版社,2014:107. ZHANG Fuchen. Hydraulic and Pneumatic Transmission [M]. Beijing: Mechanical Industry Publishing House, 2014:107.
[6] 赖镰.全液压驱动斗轮式堆取料机液压系统改造[J].港口装卸,2005,(3):19. LAI Lian. Revamping of Hydraulic System of Full Hydraulic Driving Bucket Wheel Heap-loader [J]. Harbour Handling, 2005,(3):19.
[7] 于茂友.斗轮堆取料机工作装置性能研究[D].长春:吉林大学,2008:10. YU Maoyou. Study on the Performance of the Working Device of Bucket Wheel Reactor [D]. Changchun: Jilin University, 2008:10.
[8] 秦大同,谢里阳.现代机械设计手册液压传动与控制设计[M].北京:化学工业出版社,2013:38,40,118. QIN Datong, XIE Liyang. Modern Mechanical Design Manual Hydraulic Transmission and Control Design [M]. Beijing: Chemical Industry Publishing House, 2013:38,40,118.