步进电机驱动的二位二通干油阀的研制

Development of Two Positions Two Channels Grease Valve Driven by Stepper Motor

提出一种用步进电机作为驱动的二位二通干油阀设计方案,并介绍阀芯和驱动装置的设计。该方案采用步进电机作为驱动,推力较电磁阀大大增加,能在40 MPa高压下稳定工作;采用二位二通的滑阀,不需要铺设回油管路,降低系统成本,且能形成稳定背压;采用带均压槽的阀芯有效减小所受的卡紧力。对干油阀的公称压力、公称流量、压力损失和最大允许背压的测试表明,设计的进电机驱动的二位二通干油阀能有效提高智能型干油集中润滑系统的可靠性,提高被润滑设备的安全性。

A design scheme of two positions two channels grease valve driven by stepper motor was proposed, and the design of valve core and driving device was introduced.This scheme used stepping motor as the driving, and the thrust was greatly increased, and it was able to work stably under 40 MPa.The two positions two channels valve spool in using, not required of the laying of oil return pi clip and tighten pressure of the val peline , reduced the cost of the system, and was able to form a stable back pressure.The ve core was effectively reduced by using a pressure reducing groove.Through the test of the nominal pressure, nominal flow, pressure loss and maximum allowable back pressure,it is shown that the designed two positions two channels grease valve driven by stepper motor can effectively improve the reliability of intelligent grease centralized lubricating system, and it can improve the safety of lubrication equipment.