陈轶辉,李洪星,赵树忠,张雨新.采用蓄能器的大负载液压缸制动系统设计及其能量回收率仿真分析[J].机床与液压,2021,49(1):165-168.
CHEN Yihui,LI Hongxing,ZHAO Shuzhong,ZHANG Yuxin.Design and Energy Recovery Simulation Analysis of Hydraulic Cylinder Braking System with Large Load Using Accumulator[J].Machine Tool & Hydraulics,2021,49(1):165-168 |
| 采用蓄能器的大负载液压缸制动系统设计及其能量回收率仿真分析 |
| Design and Energy Recovery Simulation Analysis of Hydraulic Cylinder Braking System with Large Load Using Accumulator |
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| DOI：10.3969/j.issn.1001-3881.2021.01.033 |
| 中文关键词: 大负载液压缸 制动系统 能量回收 仿真分析 |
| 英文关键词: Hydraulic cylinder with large load Brake system Energy recovery Simulation analysis |
| 基金项目:河北省工业和信息化厅新产品新技术项目（20170129）；河北省科技计划项目（201616210342） |
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| 中文摘要: |
| 为有效减缓大负载液压缸制动阶段产生的冲击影响，并且有效减少能量损耗，采用液压蓄能器构建重力势能回收系统，通过AMESim仿真平台对动态制动过程和能量回收率进行分析。研究结果表明：在前0.5 s大负载液压缸处于匀速运动，后续系统进入制动并开始回收能量；从1.4 s开始，系统出现泄漏，蓄能器无法继续回收能量，需要利用切断阀将制动回路切断；在切断阀最初产生制动效果时，回油路流量已处于很低的状态，因此缓冲腔并不会受到较大冲击；不同的蓄能器体积并不会引起系统制动状态的变化，可达到基本相同的能量回收率。提高蓄能器初始压力后，在更短时间内可完成制动过程，并且回收的能量基本不变。 |
| 英文摘要: |
| In order to effectively mitigate the impact of hydraulic cylinder braking and effectively reduce the energy loss, a hydraulic accumulator was used to build a gravitational potential energy recovery system. The dynamic braking process and energy recovery were analyzed by using AMESim simulation platform.The results show that: in the first 0.5 s, hydraulic cylinder is in uniform motion, subsequently the system enters the braking process and begins to recover energy;starting from 1.4 s, the system is leaking, and the accumulator cannot continue to recover energy, so the brake circuit needs to be cut off by the cut off valve;when the cutting valve initially produces the braking effect, the return oil flow is already in a very low state, so the buffer chamber will not be greatly impacted;under different accumulator volumes, the braking state of the system does not change, and the energy recovery is basically the same;after increasing the initial pressure of the accumulator, the braking process can be completed in less time and the energy recovered is lower. |
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