以135型三螺杆泵为例，对螺杆几何参数设计、螺旋型面的形成、螺杆啮合特性进行了探讨。
By taking 135 three-screw pump as an example, the geometric parameter design, the forming of spiral surface and the characteristic of screw gearing are investigated.
干式真空泵中最重要的部件就是阴、阳螺杆转子，转子型线及其热力学性能决定了泵的抽气性能。
The driving and driven screw rotors are the most important components. The rotor profile and thermodynamic performance determine the pumping performance of pump.
因此对双螺杆泵转子型线设计及加工技术研究具有重要的理论意义和工程实用价值。
Therefore, research the profile design and processing technology of twin-screw rotor has important theoretical significance and practical value.
在欧美和日本等发达国家，螺杆型干式真空泵在很多领域已经越来越多的代替了传统的有油泵。
In many developed countries, such as America, Japan, conventional oil vacuum pump has been replaced by dry screw vacuum pump in more and more fields.
针对螺杆泵举升技术存在的问题，开发研制了一种QYLB800 - 24c—d Q001型电动潜油螺杆泵。
In the light of the problems with artificial lifting by screw pumps, Model QYLB800-24C-DQ001 electric submersible screw pump is developed.
针对大庆油田的实际情况，在进行大量室内和现场试验的基础上，制定了GLB120 - 27、GLB40 - 42和GLB500 - 14型螺杆泵的检测标准。
In view of the actual condition in Daqing Oiffield, the detecting standard for ModelGLB120-27, GLB40-42 and GLB500-14 screw pumps is formulated on the basis of many indoors and field tests.
型船用单螺杆泵为卧式结构，由船用电机驱动。
The GF Type Marine single-screw pump is horizontal structure, driven by Marine motor.
型螺杆泵严禁在无介质情况下空运转，以免损坏定子。
G is strictly prohibited without the media-type screw pump under air operation, so as to avoid damage to the stator.
螺杆泵生产的关键是螺杆的加工，而成型刀具的型线计算又是螺杆加工的关键。
The process of screw spindle is the key of producing screw spindle pump, but the calculation of shaped cutting tool is still the crux of process of screw spindle.
3G 型三螺杆具有多种结构，一般小流量泵衬套和泵体合为一个，可以卧式和立式安装。
Three screw with multiple structure of 3 g, general small flow pump bushings and pump body into one, can be installed in a horizontal and vertical.
3G 型三螺杆具有多种结构，一般小流量泵衬套和泵体合为一个，可以卧式和立式安装。
Three screw with multiple structure of 3 g, general small flow pump bushings and pump body into one, can be installed in a horizontal and vertical.
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