泵杆

Screw pump ; engagement ; conjugate line pattern

螺杆泵；啮合；共轭线型

A short-amplitude cycloid is used to be the primary gear form for stator and the conjuration gear form using on rotor on the basis of the analysis and compare of all kinds of cycloids.

在对各种摆线分析比较的基础上，提出采用短幅内摆线作为原始齿形曲线用于定子骨线设计，其共轭曲线用于转子的双头单螺杆泵设计。

Figure 1 express cutaway view of the three screw pump.

图1表示三螺杆泵的剖视图。

Figure 1 that the three screw pump cutaway view.

图1表示三螺杆泵的剖视图。

Based on the theory of fluid transmitting pressure, this paper gives a method of dual pressure-out curve for the diagnosis of screw pump well working status.

韩修廷 ，张男，李永东基于流体传压理论，给出了诊断螺杆泵井工况的双憋压曲线法。

Single-screw pump because of its structural features, mostly used in the transportation of liquids and higher viscosity of the liquid containing the particles, so the choice of rotation is critical, according to experience, listed in Table 2, Table 3, you can depending on of comprehensive consideration.

单螺杆泵由于其结构特点，大部分使用在输送较高粘度的液体及含有颗粒的液体，因此其转数的选择非常关键，根据经验，列出表二、表三，您可根据具体情况综合考虑。

This provided foundation for field examination, reparation and management, while can provide indispensable data for designer, fabricator and operator, so that they can ,improve the rod pumping system through making use of the data.

为现场的检修和管理提供了科学的依据，同时可向设计、制造和操作人员提供必要的数据，以便他们通过数据分析对有杆泵抽油系统进行改进。

The load force model about the rod pump is carefully analysesed.

给出了有杆泵负载—位移特性的数学分析，系统的详细数学模型中充分考虑了多种非线性因素的影响。

Its design novel, low speed operation, high efficiency, than the screw pump, gear pump energy-sing 30%.

它的设计新颖，运转速度低、效率高，比螺杆泵、齿轮油泵节能＜30%。

Therefore, in the case of inhalation are poor, should choose a small lead of the twin-screw pump.

因此在吸入条件不好的情况下，宜选择小导程的双螺杆泵。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。