The Computer-aided Design Of Hydraulic Supports

As the key support equipment of fully mechanized coal faces, the hydraulicsupport has a significant impact on coal mine safety production. There are somedeficiencies on traditional design method, such as long period and high cost, that limitthe development of design and manufacture enterprises of hydraulic supports. Withthe constant development and improvement of computer technology, it will not onlygreatly increase design efficiency and product quality and save design costs but alsobe easily acceptable to customers if we make full use of modern design methods intothe design of hydraulic supports.Based on engineering practical application and optimization of hydraulicsupports, this topic researched and developed a computer-aided design integratedsystem for hydraulic supports in integrated development environment of Visual Basic.Firstly, the research status of modern design methods and its application in the designof hydraulic support was introduced. Secondly, four bar linkage of hydraulic supportswas analysed in kinematics. Based on the comparison of common structural parameteroptimization methods of hydraulic support, the complex method was choosed tooptimized the four bar linkage. Then, four-column chock-shield hydraulic support andtwo-column shield hydraulic support were analysed in kinematics and statics, and itsanalysis results were used into the programming process of VB to guide the motionsimulation of hydraulic supports and the end of the beam’s trajectory. Finally,development environment and revelant tools of the computer-aided design prototypesystem and its hardware and software were presented. ZY6800/19/40, a kind oftwo-column shield hydraulic support, were choosed to be an example to explain thissystem in detail. In order to compare the effectiveness of the system, the column ofZY6800/19/40Awas taken into finite element analysis.The main outcome of this topic is developing a special computer-aided designsystem for hydraulic supports based on Visual Basic integrated developmentenvironment. The system can achieve the following four functions, optimization offour-bar linkage, kinematic analysis, stress analysis and strength check of hydraulicsupports. In addition to these, the analysis results of hydraulic supports can bedisplayed by two ways, graphics and data reports.The development and use of the design system for hydraulic supports can greatlyincrease design efficiency improve the ability of enterprises to respond to market and customer needs quickly, and reduce products design cycle and development costs.