自由锻造油压机常锻工况能耗特性

摘要/Abstract

摘要： 为分析大功率自由锻造油压机电液比例控制系统能量分布规律，以常锻工况为例，综合考虑操作工操作影响，研究了操作手柄控制方式及系统控制流程，建立了油压机电液比例控制系统的能耗计算模型和仿真模型，并通过20MN快锻油压机实测数据验证了仿真模型的正确性。基于仿真模型，对20MN自由锻造油压机电液比例控制系统的能耗分布规律进行了仿真，重点研究了油压机不同载荷和操作工操作速度对系统能耗的影响。锻造油压机常锻过程存在较大的速度变化，恒定的流量源不能匹配负载变化，导致20MN自由锻造油压机满载时能量利用率仅为14.3%。研究结果还表明，载荷越大、操作工操作越熟练，系统的能量利用率越高。

关键词: 油压机, 自由锻, 能耗, 节能, 电液比例控制

Abstract: In order to analyze the energy distribution proportion of electro-hydraulic control system for a open-die forging hydraulic press, taking the regular forging process of 20 MN open-die forging press as the studied object and considering the operator influences, the operating mode and control method were given, the energy consumption calculation model and the hydraulic control system simulation model were established. Then, for the purpose obtaining the more accurate simulation model, the measured data of 20MN fast forging hydraulic machine was used to verify the simulation model. Furthermore, based on the simulation model, the energy distribution for 20MN open-die forging hydraulic electro-hydraulic proportional control system was simulated, especially focused on the influence rules of different loads and operator operating speed on the system energy consumption. The simulation results show that the energy utilization rate for 20MN open-die hydraulic forging press is only 14.3% under conditions of maximum load, the main reasons of low efficiency is the constant flow rate input can not match the varied velocities of the load, and the energy utilization rate proportionally improves with increases of the load and the operating speed.

Key words: hydraulic press, regular forging, energy consumption, energy-saving, electric-hydraulic proportional control

中图分类号:

TH137.5

姚静, 魏晨光, 李彬, 汪飞雪. 自由锻造油压机常锻工况能耗特性[J]. 中国机械工程.

Yao Jing, Wei Chenguang, Li Bin, Wang Feixue. Regular Forging Energy Consumption Characteristics for Open-die Hydraulic Forging Press[J]. China Mechanical Engineering.

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