摘  要

    液压泵作为液压系统的动力装置，越来越受到人们的关注，因为它的性能的好坏直接影响整个液压系统的工作可靠性。被广泛应用于冶金、矿山、锻压、注塑、船舶、重型等机械设备中。但在实际生产中还不能解决很好地流量脉动、刚性和柔性冲击等问题。平衡式径向柱塞泵的设计可以很好地解决流量脉动、刚性和柔性冲击等问题。通过设计使此泵在结构功能上能够适应现代化生产高要求的2X-70旋片式真空泵。
   真空泵利用机械、物理、化学、物理化学等方法对容器进行抽气，以获得和维持真空的装置。真空泵和其他设备（如真空容器、真空阀、真空测量仪表、连接管路等）组成真空系统，广泛应用于电子、冶金、化工、食品、机械、医药、航天等部门。
本设计是根据给定设计参数完成2X-70旋片式真空泵结构设计，主要包括带轮、泵的结构设计。确定出几何参数，绘制并检查投影图，采对泵进行结构设计，绘制了装配图和部分零件图，并对轴进行了强度校核计算。
关键词：真空泵，2X-70旋片式，结构设计
 

Abstract

 
The hydraulic pump as the power device of hydraulic system, more and more attention, because of its working reliability will directly influence the performance of the whole hydraulic system. Widely used in metallurgy, mining, forging, injection molding, shipbuilding, heavy machinery and other equipment. But in actual production is not properly resolve the flow pulsation, rigid and flexible impact problems. Better solve the problem of flow pulsation, rigid and flexible impact design balanced radial piston pump can. Through the design of the pump 2X-70 rotary vane vacuum pump can meet the high requirements of the modernized industry structure function.
Vacuum pump with mechanical, physical, chemical, physical and chemical method for pumping the container, in order to obtain and maintain a vacuum device. Vacuum pumps and other equipment (such as a vacuum container, vacuum valve, vacuum measuring instruments, the connection pipelines) consists of vacuum system, widely used in electronics, metallurgy, chemical industry, food, machinery, pharmaceuticals, aerospace and other departments.
The design is based on the 2X-70 rotary vane vacuum pump structure design to complete a given design parameters, including the structure design of belt wheel, pump. To determine the geometric parameters, and check the projection mapping, mining design the structure of the pump, drawing the assembly drawing and parts drawing, and for the strength calculation.
Keywords: 2X-70 rotary vane vacuum pump, design, structure