基于压力反馈的机械式高速气缸缓冲装置研究

介绍一种基于进气腔压力反馈机械式高速气缸缓冲装置。根据仿真数据,找到较好缓冲时可变面积节流口变化曲线,结合实验得到不同负载质量及不同活塞速度下缓冲行程中进气腔压力变化规律。将进气腔压力作为缓冲阀芯控制气压,对缓冲过程中排气节流面积进行控制。设计实验样机并在不同工况下对其进行实验。结果表明,在一定工况变化范围内,此缓冲装置具有较好的自适应能力,符合设计要求。

High-speed Mechanical Cylinder Cushion Device Based on Pressure Feedback

This study introduces a high-speed mechanical cylinder cushion device based on pressure feedback of air intake cavity. The variable curve of the variable area throttle is found according to the simulation data. And the pressure curve of the intake chamber under different load qualities and different piston speeds is considered in the cushion stroke on the basis of the experimental data. The air intake cavity pressure is treated as control air of cushion valve to change exhaust throttle area in cushion stoke. We design the prototype and experiment on it in different conditions. The results show that the cushion device can achieve better adaptive ability within a certain range of working conditions and it can meet the design requirements.