The utility model relates to a rotary-vane vacuum pump, which provides a column spiral torsional spring which is used for replacing a column spiral compressing spring.

本实用新型涉及旋片式真空泵，提供一种圆柱螺旋扭转弹簧，用它取代圆柱螺旋压缩弹簧。

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In this paper, the problems met in designing, producing and use of the rotary-vane vacuum pump are discussed. The solution methods and the research direction are given.

本文论述了旋片真空在设计、生产和使用中存在的问题，提出了解决的方法和研究方向。

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Rotary vane vacuum pump is the most vacuum equipment used in vacuum trade.

旋片式真空泵是真空行业中使用最多的真空获得设备。

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