气动往复循环运动全气控专用阀的设计及CAD图纸
时间:2016-12-19 23:04 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：随着社会的发展，气压的功能逐渐被人们所认识。气动执行元件主要用于作直线往复运动。在工程实际中，这种运动形式应用最多，如许多机器设备上的传送装置、产品加工时工件的进给、工件定位和夹紧、工件装配以及材料成形、加工等都是直线运动形式。但有些气动执行元件也可以作旋转运动，如摆动气缸(摆动角度可达360。)。在气动技术应用范围内，除个别情况外，对完成直线运动形式来说，无论是从技术还是从成本角度看，气缸作为执行元件是完成直线运动的最佳形式，如同用电动机来完成旋转运动一样。在气动技术中，控制元件与执行元件之间的相互作用是建立在一些简单元件基础上的。根据任务要求，这些元件可以组合成多种系统方案。由于气动控制使机构或设备的机械化程度大大提高并能够实现完全自动化，因此，气动技术在“廉价”自动化方面做出了重大贡献。实际上，单个气动元件(如各种类型气缸和控制阀)都可以看成是模块式元件，这是因为气动元件必须进行组合，才能形成一个用于完成某一特定作业的控制回路。广义上讲，气动设备可以应用于任何工程领域。气动设备常常是由少量气动元件和若干个气动基本回路组合而成的。4575 本文所要研究的是怎样实现气缸的往复循环运动，而且所用到的控制系统为气控系统。本文介绍了一种气动往复循环运动全气控专用阀的设计思路，工作原理以及结构特点. 关键词：往复循环运动；气控；专用阀 Pneumatic full of movement of the reciprocating cycle special pneumatic valve design Abstract：With the development of the society, the function of air pressure gradually known by people. Pneumatic actuators are mainly used to make linear reciprocating motion. Most application in engineering practice, this form of exercise, such as many machinery and equipment of the transmission device, product processing on the work piece feeding, positioning and clamping work piece, work piece assembly and material forming, machining, etc are linear motion form. But some pneumatic actuators can make rotation movement, such as the oscillating cylinder (swinging Angle of up to 360.). In pneumatic technology application range, in addition to the individual circumstances, to do linear motion form, whether from the technical or from the perspective of the cost of the cylinder as actuator is the best form to do linear motion, like motor to complete rotation motion. In pneumatic technology, the control of interaction between components and actuators is established on the basis of some simple components. According to mission requirements, these components can be assembled into a variety of system solutions. Due to aerodynamic control agencies or equipment greatly improve the mechanization degree and can realize fully automated, therefore, pneumatic technology in automation has made a significant contribution to the "cheap". In fact, a single of pneumatic components, such as various types of cylinder and control valve) can be as modular components, this is because the pneumatic components must be combined, to form a control loop used to complete a particular job. Broadly speaking, pneumatic equipment can be applied to any engineering field. Pneumatic equipment is often by a small amount of pneumatic components and several basic loop combinations. This paper is to study how to achieve the reciprocating cycle movement of the cylinder, and the control system used by the control system for gas. Pneumatic full of movement of the reciprocating cycle are introduced in this special pneumatic valve design thought, working principle and structural characteristics. Keywords：Reciprocating cycle movement; Gas control; Special valve 目录 1 绪论6 1.1 研究方向6 1.2 文献综述6 (责任编辑：qin) |