查询词典 feeder rod

On the basis of analyzing the failure forms of the sucker rod, the existence of the torsional vibration of the sucker rod was approved and its reason was found out.

在综合分析抽油杆破坏形式的基础上，肯定了采油过程中抽油杆扭转振动的客观存在，分析了抽油杆产生扭转振动的原因。

For sucker rod pumping system, it commonly used the explicit difference method to evaluate a rod pumping performance.

对石油开采中的有杆抽油系统，通常采用显式差分法进行求解。

In order to design the rod string and analyze failure mechanism, the dynamics analysis on rod string of surface driving screw pump must be conducted.

地面驱动螺杆泵抽油杆柱动力学分析是杆柱设计、失效机理分析的关键技术。

In order to design the rod string and analyze failure mechanism,the dynamics analysis on rod string of surface driving screw pump must be conducted.

1· 大庆石油学院机械科学与工程学院黑龙江大庆 163318；2·大庆油田有限责任公司黑龙江大庆 163113

Pumping speed and the length of stroke have greater effect on the loads applied on polished rod, rod string and pump plunger.

4，冲程次数和冲程长度对悬点、杆柱及泵上的载荷影响较大。

This model can be used to calculate and predict the change in torque of rod string loca ted at screw pump and any locations in wellbore according to the change in torqu e of polished rod measured on the surface, vice versa.

利用该模型，可以根据在地面测试的光杆扭矩变化规律计算出井筒中任意部位及螺杆泵处抽油杆扭矩的变化情况，也可根据螺杆泵处抽油杆扭矩变化来预测光杆扭矩的变化。

Products mainly for the automotive operating steering rod ball head, suspension arm ball head, before and after the stability ball head rod and other automotive parts such as ball connections.

经营产品主要为汽车转向系拉杆球头、悬挂摆臂球头、前后稳定连杆球头及其他汽车球销连接件等。

In fishing,the sliding cone blocks enter the fish cavity easily acted by a guide shoe and a guide cone,slide downward by its own weight,produce relative displacement to the guide rail slope,and the radial distance between its tooth face and the spear rod increases until it touches the inner wall of the fish cavity; while lifting the drilling string,the guide rail slope on the spear rod forces the sliding cone blocks to bite the inner wall of the tubing fished.

打捞时在引鞋和导锥的作用下滑牙块能够顺利进入鱼腔并依靠自重下滑，沿导轨外伸直至其齿面与鱼腔内壁接触；随后上提钻柱，矛杆上的导轨斜面迫使滑牙块咬紧被打捞油管内壁，当油管严重偏磨使一对滑牙块卡在磨穿位置时，另一对能有效卡在未磨损部位，同时外筒限制了油管外胀变形。

Here's a tip when installing door panel rods: Slip the top rod pocket of door panel through the top rod and secure it to brackets.

这里有一个一角安装门板棒：滑动杆顶端门口袋小组通过顶端杆和稳固以括号。

In the pump body installed a stator swing span and a swing span rotation shaft, the swing roller bearing on the stator swing span connects with an end of the stator mount, the other end of the stator mount connects with the stator; on the plunger connecting rod sliding boot installed a static pressure balance chamber, the holding rings are arranged on the two sides of the plunger connecting rod sliding boot which has a fit clearance with the holding rings; the rotor rotates the stator simultaneously via the plunger piston; the needle roller bearings are arranged on the two inner circles and fit with the port axle.

在泵体内安置有定子摆架和摆架转轴，位于定子摆架上的摆架滚子轴承与定子托架的一端配合联接，定子托架的另一端与定子相连；柱塞连杆滑靴上设有静压平衡室，柱塞连杆滑靴两侧设有保持环，柱塞连杆滑靴与保持环有一定的配合间隙；转子通过柱塞带动定子同步旋转；在转子内圆两端设有滚针轴承，滚针轴承与配流轴配合。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。