Automatic adjusting device of screw pair of single-screw pump
A screw and screw technology, applied in the field of automatic adjustment devices, can solve the problems of increased return flow, increased pressure drop, etc., and achieve the effects of reducing leakage, improving volumetric efficiency, and increasing pressure
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Embodiment 1
[0017] The screw pair includes a stator 1, a stator hoop 2 and a screw 3. The stator 1 is made of rubber; the stator hoop 2 is made of seamless steel pipe; the screw 3 is made of 45 steel. Stator 1 is a double-ended helical stator with equal wall thickness; its wall thickness is 5 mm. The stator 1 is fixed in the stator hoop 2 .
[0018] All the other technical features are the same as the technical solution.
Embodiment 2
[0020] The screw pair includes a stator 1, a stator hoop 2 and a screw 3. The stator 1 is made of rubber; the stator hoop 2 is made of seamless steel pipe; the screw 3 is made of 2Cr3. Stator 1 is a three-headed helical stator with equal wall thickness; its wall thickness is 10 mm. The stator 1 is fixed in the stator hoop 2 .
[0021] All the other technical features are the same as the technical solution.
Embodiment 3
[0023] The screw pair includes a stator 1, a stator hoop 2 and a screw 3. The stator 1 is made of rubber; the stator hoop 2 is made of seamless steel pipe; the screw 3 is made of 304 stainless steel. Stator 1 is a three-headed helical stator with equal wall thickness; its wall thickness is 20mm. The stator 1 is fixed in the stator hoop 2 .
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