| 基于AMESim断带抓捕缓冲系统仿真研究 |
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| 引用本文： | 王利锋.基于AMESim断带抓捕缓冲系统仿真研究[J].液压与气动,2018,0(4):101-104. |
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| 作者姓名： | 王利锋 |
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| 作者单位： | 重庆三峡学院机械工程学院， 重庆404020 |
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| 基金项目： | 重庆市教委科学技术研究项目(KJ1710261) |
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| 摘 要： | 断带抓捕装置是带式输送机安全运行的重要保护装置，但当带式输送机断带抓捕时易产生较大冲击载荷。液压缓冲对冲击载荷具有较好的吸收消耗作用，可减小断带抓捕时的冲击振动。通过介绍断带抓捕液压缓冲系统的工作原理，利用AMESim进行系统建模。研究了溢流阀开启压力对缓冲油缸压力及制动距离的影响，得出理想的溢流阀开启压力为3 MPa，制动距离为0.59 m，制动时间为1.59 s，并模拟了溢流阀开启压力为3 MPa时的冲击实验。结果表明活塞位移和缓冲腔压力均略低于仿真值，但接近程度较高，验证了仿真研究的参考性。
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| 关 键 词： | 断带抓捕缓冲系统 开启压力 制动时间 AMESim 制动距离 断带抓捕缓冲系统 开启压力 制动时间 制动距离 |
| 收稿时间： | 2018-01-09 |
Simulation and Study Based on AMESim for Broken Belt Capture Buffer System |
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| WANG Li-feng.Simulation and Study Based on AMESim for Broken Belt Capture Buffer System[J].Chinese Hydraulics & Pneumatics,2018,0(4):101-104. |
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| Authors: | WANG Li-feng |
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| Affiliation: | College of Mechanical Engineering, Chongqing Three Gorges University, Chongqing404020 |
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| Abstract: | A belt capture device is an important protector for safe operation of belt conveyor, but it is easy to produce a larger impact load when the belt conveyor is catching. The hydraulic buffer has a better absorption and consumption effect on impact load and can reduce shock and vibration when the belt conveyor is catching. The working principle of broken belt capture hydraulic buffer system is introduced. The hydraulic buffer system is modeled based on AMESim. The influence of opening pressure of overflow valve on buffer cylinder pressure and braking distance is studied. The simulation results show that the ideal relief valve cracking pressure is 3 MPa, and the braking distance is 0.59 m and the braking time is 1.59 s. Finally, an impact experiment on the opening pressure of overflow valve at 3 MPa is tested. The experiment results show that the piston displacement and the buffer cavity pressure are lower than the simulation values, but these values are close to the simulation results. Thus, the reference of simulation research is verified by experiment. |
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