多功能液压实验台设计
多功能液压实验台毕业设计论文
摘要
多功能液压实验台完全是根据各国对多功能液压实验台形式试验的标准设计制造的，该实验台能够实现常用液压元件的性能测试和液压传动基本实验回路实验。本设计包括两部分：一是液压系统的功能原理设计（包括功能设计、组成元件设计和液压系统计算），二是液压系统的结构设计（主要是液压装置的设计）。
本实验台结构紧凑，节省空间；够实现完成给定的实验项目，实验操作简便，实验间切换方便灵活，各部件工作正常、稳定，无有泄漏现象；所有实验元件均为独立组件，可由学生自行设计、组装实验回路；系统的额定压力：6.3MPa；能够完成2种液压元件的性能测试，12个液压回路实验，即：液压泵的特性测试、溢流阀的特性测试；调压回路、减压回路、进油节流调速回路、采用行程阀的速度换接回路、调速阀串接的速度换接回路、调速阀并联的速度换接回路、采用顺序阀的顺序动作回路、采用压力继电器的顺序动作回路、采用三位换向阀的卸载回路、采用溢流阀的卸荷回路、用顺序阀的平衡回路、用液控单向阀的锁紧回路。
多功能液压实验台采用了行程阀和顺序阀实现快进与工进的换接，不仅简化了油路，而且使动作可靠，转换的位置精度也比较高。由于工进速度比较低，采用布置灵活的电磁阀来实现两种工进速度的换接，可以得到足够的换接精度。
关键词：液压回路泵阀
Abstract
Hydraulic multi-functional test-bed is in accordance with national test-bed for multi-function hydraulic form of the standard design and manufacture of test, the test commonly used to achieve the performance of hydraulic components and hydraulic test loop experiments the basic experiment. The design includes two parts: First, the principle of hydraulic system design (including functional design, component design and hydraulic system components), the second is the structural design of the hydraulic system (mainly the design of the hydraulic device).
Compact structure of the test-bed to save space; enough to achieve the completion of the pilot project to set the experimental method is simple, convenient and flexible switch between experiments, the components of the work of a normal, stable, non-leakage phenomenon; all experimental components are independent components, can be students to design, assemble experimental circuit; system rated pressure: 6.3MPa; able to complete two kinds of performance testing of hydraulic components, hydraulic circuit 12 experiments,Namely: the characteristics of hydraulic pump testing, the characteristics of relief valve testing; regulator loop decompression loop speed control loop into the oil-savings, speed of adoption of trip-for-access valve circuit, the speed governor valve for next series loop speed control valve for the speed of parallel access circuit, the order of sequence valve action circuits, using the pressure of the order of the relay loop action, the use of three of the unloading valve circuit, the unloading relief valve of the circuit, with the order of circuit balance valve, pilot controlled check valve with the locking loop.
Test-bed multi-function hydraulic valve using a trip valve and the order and work to achieve fast-forward into the next exchange, not only simplifies the circuit, but also action and reliable conversion of positional accuracy is high. As the work is relatively low speed, using a flexible arrangement of the solenoid valve to achieve the speed of the two-for-work into the next, can be sufficient accuracy for access.
Key words：hydraulic circuit pump valve
