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| Study on optimization of electro-hydraulic proportional heightening hydraulic system of shearer |
| Liu Yanjie |
| Shanxi Coal Import and Export Group Hongtong Lucheng Coal Industry Co., Ltd., Linfen 041600, China |
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Abstract Aiming at the shortcomings of slow tracking response and insufficient operation accuracy of MG300 shearer used in Lucheng Coal Industry, a height adjustment system scheme with electro-hydraulic proportional valve as the core component is proposed. ASAMS and AMESim software are used to simulate the dynamic performance of electro-hydraulic proportional valve controlled cylinder. At the same time, one-way throttle valve and one-way damper are added to solve the vibration when the equipment drops, meet the control requirements of small flow at the opening, and enhance the working stability of the valve core. The simulation results show that the height adjustment error of the electro-hydraulic proportional height adjustment system based on PID control strategy is within 0.07 m. The field application shows that the system has good operation stability, reduces the maintenance workload, saves the production cost and reduces the accident rate.
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| [ 1 ] 曾庆良，张海忠，王成龙，等. 采煤机调高系统的机液协同仿真分析[ J ]. 煤炭科学技术，2015，43（ 1 ）：86 - 90.
[ 2 ] 张春雨，廉自生，苏小立. 基于PID开关阀控液压缸的采煤机滚筒自动调高控制系统的建模与仿真[ J ]. 煤矿机械，2014，35（ 3 ）：42 - 44.
[ 3 ] 陈晓强，彭天好，徐二宝，等. 基于AMESim和ADAMS的采煤机调高系统的协同仿真[ J ]. 煤矿机械，2012，33（ 11 ）：40 - 42.
[ 4 ] 彭天好，张义龙，王光耀，等. 采煤机电液比例调高机液耦合仿真研究[ J ]. 煤炭科学技术，2016，44（ 9 ）：127 - 133.
[ 5 ] 王彪谋，侯 刚，张金虎，等. 坚硬薄煤层智能化开采成套关键技术及装备研究[ J ]. 煤矿开采，2018，23（ 4 ）：1 - 3，28.
[ 6 ] 郭 卫，王 滨，梁 鑫，等. 基于电液比例控制的采煤机调高液压系统仿真[ J ]. 煤矿机械，2015，36（ 5 ）：122 - 124. |
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