| 摘要 |
PURPOSE: A screw pump with field refurbishment provisions is provided that the gap between screw and the helical axis are adjusted and the timing of the screw pump is adjusted. CONSTITUTION: A screw pump(20) comprises two or more screws, a base(26), and a shaft. The screw is expanded between the helical flight, the inner end and the outer end. The shaft copes with each screw, and it is expanded between the inner end and the outer end, and it is formed in the inner end into the cantilever shape, and comprises a core. The core accepts shaft so that the screw move by slipping on the top of the shaft. The locking mechanism is provided in the middle portion of the shaft and the screw. It locks above statement, in order to be possible to rotate in mechanism, the shaft and screw together locks without the key or the key guide.
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