Self-balancing variable-pitch cone-shaped screw rotor
A conical screw and variable pitch technology, which is applied in the direction of rotary piston pumps, rotary piston machines, and parts of pumping devices for elastic fluids, can solve the problem of increasing the strength of the screw rotor, occupying the suction volume, and gas Interstage leakage and other problems can be achieved to reduce the volume of the working chamber, increase the volume of the working chamber and increase the pumping speed
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[0053] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0054] like figure 1 Shown is the cross-sectional line diagram of the self-balancing variable-pitch conical screw rotor; the cross-sectional line of the screw rotor refers to: use a plane perpendicular to the rotation centerline of the screw rotor to cut off the screw rotor from any axial position, The contour curve obtained at the cross-section; the cross-sectional profile of the screw rotor is surrounded by 12 curves, clockwise as follows: the first addendum arc AB, the first addendum arc BC, and the equidistant curve of the first cycloid CD, the first dedendum arc DE, the envelope EF of the first arc, the first connecting arc FG, the second addendum arc GH, the second tooth tip arc HI, the equidistance of the second cycloid Curve IJ, the second dedendum arc JK, the envelope KL of the second connecting arc, and the second connecting arc LA; the adjac...
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