A Study on Self-Tuning Pneumatic Counterweight System

• Main Authors: Zheng-Xue LIU, 劉政學
• Other Authors: Hong-Tzer Yan
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/87380473829619781168

碩士 === 建國科技大學 === 機械工程系暨製造科技研究所 === 97 === The pneumatic counterweight system with a pneumatic servo control will perform better than those without having the control equipped, such as the weight mass system, hydraulic counterweight system and regular pneumatic counterweight system. However, the servo control technology is technically complex and characterized by its high cost, difficulty of maintenance and high demanding on the environment. With a precision pressure regulator, a conductive pressure type regulator with large displacement function, solenoid valve, a pressure switch, and pneumatic and electrical control elements, the study designs a system control loop which is capable of controlling the pneumatic cylinder with low coefficient of friction and driving the counterweight slider to enable it to achieve the condition of nearly zero load. To represent the concept in material form, the study develops a self-tuning pneumatic counterweight system to conduct performance testing, and the experimental results indicate that the self-tuning pneumatic counterweight system developed herein is capable of controlling sliders with various counterweights to attain the condition of nearly zero load under continuous variable speed.