液压抽油机系统动力分析

DYNAMIC ANALYSIS OF HYDRAULIC PUMPING SYSTEMS

李桂喜 马汝建 李三平

济南大学科研处, 山东济南 250002 华北石油管理局第二机械厂, 河北任丘 062552

应用机械振动理论,对液压抽油机系统的动力特性进行了分析。结果表明,抽油泵的动力响应可分为 2部分,一部分是随悬点一起的运动,另一部分是由悬点位移激发的振动响应,其频率为系统的固有频率。通过对驱动系统的参数优化,得出在停顿时间Δt1=0.6s、加速时间Δt2=0.3s时,抽油泵将出现超冲程,超冲程长度为 0.12 5m,这对于提高采油效率将是有益的

The dynamic analysis of hydraulic pumping systems was carried out in this paper by using the theory of mechanical vibrations. The results indicate that the movement of the pump includes two parts. One is the movement following the horse-head. The other is the dynamic response excited by the support movement. The optimization of parameters of the driving system was performed and obtained that over-stroke of the pump will appear when the stop time is 0.6 seconds and accelerate time is 0.3 seconds. The length of over-stoke is 0.125 m. This is beneficial for increasing the effectiveness of production.

10.3969/j.issn.1000-7393.2001.03.015