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一、适用范围一般,在生产线上的液压设备,为了提高生产率,要求尽量减少辅助工作时间;即空载快进到工作位置之后,再慢速大负荷工作,工作完了快速退回,而且一般生产节拍固定.本单元非常适于这种工作状态的液压设备,且能实现较大的快进快退与工进的速比。二、结构及工作原理1.结构图1为变截面活塞油缸及其节能回路结构简图.图中:1是油缸,2是整体活塞。D_1为活塞部分直径,D_2是活塞杆兼活塞部
First, the scope of application In general, in the production line of hydraulic equipment, in order to improve productivity, requiring a minimum of auxiliary working hours; that is no-load into the working position quickly after the slow heavy load, the work finished quickly returned, and the general production of beats Fixed. This unit is very suitable for this working state of the hydraulic equipment, and can achieve a large fast forward and rewind with the work of the ratio. Second, the structure and working principle 1. Structure Figure 1 for the variable cross-section piston cylinder and its energy-saving circuit diagram of the structure. In the figure: 1 is the cylinder, 2 is the overall piston. D_1 piston diameter, D_2 is the piston rod and piston