| 泵-蓄势器联合传动在40MN挤压机中的应用 |
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| 引用本文： | 董晓娟,权晓惠,荆云海,张立波.泵-蓄势器联合传动在40MN挤压机中的应用[J].重型机械,2012(3):133-136. |
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| 作者姓名： | 董晓娟 权晓惠 荆云海 张立波 |
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| 作者单位： | 金属挤压与锻造装备技术国家重点实验室,西安,710032 |
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| 基金项目： | “高档数控机床与基础制造”科技重大专项支持课题编号(20092X04005-031) |
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| 摘 要： | 针对40MN卧式双动挤压机液压系统的要求,提出采用泵-蓄势器联合传动,并对挤压速度进行分段控制:在低速段(0.5～5 mm/s)和高速段(45～100 mm/s),采用容积与节流联合调速方式进行控制；在中速段(5～45 mm/s),采用容积调速方式进行控制.同时在该挤压机主缸进液控制油路上设置插装式比例压力阀,使系统压力不超过设定值,保护了挤压工具.
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| 关 键 词： | 挤压机 液压系统 挤压速度 泵-蓄势器 |
Application of pump-accumulator combination drive in 40 MN extrusion press |
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| DONG Xiao-juan
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QUAN Xiao-hui
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JIN Yun-hai
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ZHANG Li-bo.Application of pump-accumulator combination drive in 40 MN extrusion press[J].Heavy Machinery,2012(3):133-136. |
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| Authors: | DONG Xiao-juan QUAN Xiao-hui JIN Yun-hai ZHANG Li-bo |
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| Affiliation: | (State Key Laboratory of Metal Extrusion and Forging Equipment Technology,Xi’an 710032,China) |
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| Abstract: | The pump-accumulator combination drive was adopted and extrusion velocity was controlled in segments according to the requirements of the hydraulic system in 40 MN extrusion press.The extrusion velocity is 0.5~5 mm/s in low speed section and 45~100 mm/s in high speed section,in which the control mode is volume and throttle combining regulation;the extrusion velocity is 5~45 mm/s in intermediate speed section,in which the control mode is volume speed regulation.A plug-in mounting pressure apportioning valve is set in the liquid inlet pipline to the main cylinder of the extrusion press to keep the pressure within the set value and protect the extrusion system. |
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| Keywords: | extrusion press hydraulic system extrusion velocity pump-accumulator |
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