您要查找的是不是：
- Analysis of fatigue reliability of crank pin of beam pump unit. 游梁式抽油机曲柄销疲劳可靠性分析
- Milling the keyway on the crank of a beam pumping unit by using Model T6916B boring machine was investigated. 对利用T6916B镗床铣削加工游梁式抽油机曲柄键槽进行了探讨。
- The beam and crank pin bearing adopt tip bearing structure to decrease the shaking due to the install difference and operation of pumping unit. 横梁轴承及曲柄销轴承采用调心轴承结构，以降低安装造成的误差和抽油机运转时的振动。
- The main causes is analysed for looseness of the threaded connection on pumping unit crank pin and the corresponding preventive measures are proposed. 分析抽油机曲柄销螺纹联接在使用中发生松动的主要原因,并提出相应的预防措施;
- The dual variable-diameter wheel pumping unit is comprised of crank arm, pitman, swing link, pumping jack, flexible connecting fittings, sheave pulley and guide wheel. 双变径天轮式抽油机由曲柄、连杆、摆杆、机架、柔性连接件、天轮和导向轮等组成。
- Development of the well condition self-adaptive pumping unit. 井况自适应抽油机的研制。
- Modifying balance system of Model LCJ1250 chain drive pumping unit. LCJ1250链条抽油机平衡方式改造的实践
- Joint movement beam balance pumping units with attaching six-staff organization 六连杆联动变矩抽油机
- New method for power saving of beam pumping units. 游梁式抽油机节能新技术探讨。
- Dynamics simulation of hydraulic beam pumping unit based on 3D model. 液压游梁式抽油机的三维动力学特性仿真
- In balance system, one belongs to a class of crank balance, the other belongs to a class of hoists balance. 从平衡方式上讲，一类属于曲柄平衡，一类属于吊重平衡。
- A coupler drive system for pumping unit is developed by using the theory of hydraulic drive of coupler. 摘要运用耦合器液力传动原理，研制成功抽油机耦合器传动系统。
- Application of Watt chain six-bar linkage on pumping units. 瓦特链六杆机构在抽油机上的应用与优化设计
- Chain type long stroke pumping unit is mainly used in mid and anaphase oilfield. 链式长冲程抽油机主要是为开采中、期油田而设计的。
- A Calculation method of kinematic parameters for the unusual shape beam pumping unit. 异形游梁式抽油机运动参数的求解方法。
- Finite element analysis and optimum seeking design of frame of chain-drive pumping unit. 链带抽油机机架有限元分析及方案优选。
- Analysis of kinetic and dynamic characteristics of pumping unit with six-bar linkage. 六连杆抽油机的运动和动力特性分析。
- CYJ10?3?0?53HB pumping unit is reconstructed into CYJ210?4?8?53HB(G)phased heam puming unit,with notating mule head. 利用CYJ10 3.;0 53HB型常规抽油机改造成CYJZ10 4
- The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
- The design scheme and working principle of a broad-belt hydraulic pumping unit are presented. 提出了宽带液压抽油机设计方案，以及设计结构和工作原理。
