快速压缩机液压制动活塞回弹现象的优化

中国机械工程

快速压缩机液压制动活塞回弹现象的优化

韩义勇1,2;商艺宝1;廖升友2;罗浩锋2;陈炜烽2;潘家营1;卫海桥1

1.天津大学内燃机燃烧学国家重点实验室，天津，300072
2.广西玉柴机器股份有限公司，玉林，537005

出版日期:2019-08-25 发布日期:2019-08-27
基金资助:
国家自然科学基金资助项目(91641203,51706152)；
天津市自然科学基金资助项目(18JCQNJC07500,17JCZDJC31500)

Optimization of Hydraulic Brake Piston Springbacks in Rapid Compression Machines

HAN Yiyong1,2;SHANG Yibao1;LIAO Shengyou2;LUO Haofeng2;CHEN Weifeng2;PAN Jiaying1;WEI Haiqiao1

1.State Key Laboratory of Engines，Tianjin University，Tianjin，300072
2.Guangxi Yuchai Co.,Ltd.,Yulin，Guangxi，537005

Online:2019-08-25 Published:2019-08-27

摘要/Abstract

摘要： 为解决当前快速压缩机采用气压驱动、液压制动方式时普遍存在的活塞回弹问题，对一台快速压缩机的高压驱动系统和液压缓冲系统进行了结构优化设计。研究结果表明：通过增加排气口数量来减小高压驱动活塞阻力、强化驱动汽缸活塞被驱动侧的放气过程，可以一定程度上缓解活塞反弹现象；同时，液压缓冲系统中被驱动侧液压油压力的迅速建立和释放是影响制动活塞反弹问题的关键，通过协同优化液压制动活塞结构和出油孔泄油量，提高液压制动活塞对实验条件的适应性，可从根本上解决快速压缩机液压制动活塞的回弹问题。

关键词: 快速压缩机, 液压制动, 活塞回弹, 高压驱动系统, 液压缓冲系统

Abstract: In order to solve the common problems of piston springbacks in rapid compression machines using pneumatic drive and hydraulic brake,the structure optimization design of a high-pressure drive system and hydraulic buffer system for a rapid compression machine were studied herein.The results show that increasing the number of exhaust ports,which may reduce the resistances of power pistons and improve deflation processs of drive cylinder piston-sides, will be able to alleviate the piston springback to some extent.Meanwhile,the rapid establishment and release of oil in the driven sides of hydraulic buffer system are the crux of the piston springbacks.The structure optimization of hydraulic brake pistons and the adjustment of oil drain holes,which improve the adaptability of hydraulic brake pistons to various experimental conditions,may fundamentally solve the springback problems of hydraulic brake pistons in rapid compression machines.

Key words: rapid compression machine, hydraulic brake, springback of piston, high-pressure drive system, hydraulic buffer system

中图分类号:

TH457

韩义勇1,2;商艺宝1;廖升友2;罗浩锋2;陈炜烽2;潘家营1;卫海桥1. 快速压缩机液压制动活塞回弹现象的优化[J]. 中国机械工程.

HAN Yiyong1,2;SHANG Yibao1;LIAO Shengyou2;LUO Haofeng2;CHEN Weifeng2;PAN Jiaying1;WEI Haiqiao1. Optimization of Hydraulic Brake Piston Springbacks in Rapid Compression Machines[J]. China Mechanical Engineering.