《城市垃圾压榨机液压系统设计(全套图纸)》.doc

摘 要 本次设计是围绕节能、环保热点来展开研究，设计了由PLC系统控制，液压系统来完成动作的垃圾压榨机。 本次课题选用液压传动来作为其动作装置，具有传统的液压传动的优势，如稳定性好，传动效率高。同时，也在系统中加入了监测压力表等设备，更好的保证了系统能稳定的运行，同时也为维修提供了方便。在设计过程中，通过要求的压力及流量等，选择了当今标准液压器件，以保证一旦设备出现故障，以便更换器件，保证工作连续性。 由于此次设计的垃圾压榨机工作环境比较差，需要的适应性强，可靠性高，抗干扰能力强的控制系统，所以本次课题的控制系统采用的是C20P系列PLC。C20P输入输出继电器点数为20点其中输入继电器12点，输出继电器为8点。其中3个输入点由行程开关控制，来保证动作位置。急停，启动，停止各一个输入点，还有一个压力继电器来控制快进转工进的动作过程。输出继电器用来控制电磁阀的电磁铁。 关键字：液压系统 垃圾处理 压榨机 PLC ABSTRACT This issue is a focus on energy saving, environmental protection and hot spots to expand the research, design by the PLC control system, hydraulic system to complete the movement of waste crushing machines.  The topic chosen as the action of hydraulic transmission equipment, hydraulic transmission with traditional advantages, such as good stability, transmission and high efficiency. , It is also added to the system of monitoring pressure gauges and other equipment, and better able to guarantee a stable operation of the system, and also for the maintenance of convenience. In the design process, by the required pressure and feed speed, etc., choose the standard of todays hydraulic components to ensure that once the equipment failurer to replace the device, to ensure continuity. As the current design of garbage squeezing machine working environment is poor, the conditions of adaptability, high reliability and strong anti-interference ability of control system are needed, so this issue of the control system is the C20P series PLC. C20P input and output relay points for 20 points including 12-point type relay, the output relay for 8 points， in which three input points from the trip switch control, to ensure that action here. Emergency stop, start, stop each one input point, there is a pressure relay to control the fast-forward the process of changing jobs into the action. Output relay used to control the solenoid valve solenoid.  Key word：Hydraulic systems PLC Compressors Waste 目 录 第一章.绪论 1 1.1垃圾处