Single-screw pump

Abstract

The invention relates to the technical field of screw pump equipment, in particular to a single-screw pump which comprises a pump shell and a material suction cavity, an inner wrapping shell is arranged in the pump shell, and a stator shell is arranged on the inner wall of the inner wrapping shell; the internally-wrapped shell comprises a first shell inserted in the pump shell and a second shell arranged on the first shell in a sliding mode, a sliding groove allowing the second shell to slide is formed in the inner wall of the first shell, the inner wall of the first shell and the inner wall of the second shell are located on the same horizontal plane, and an insertion block is arranged on the end face of the end, away from the sliding groove, of the second shell. The end face, facing the insertion block, of the first shell is provided with an insertion groove matched with the insertion block, and when the insertion block is matched with the insertion groove in an inserted mode, the inner wall of the first shell and the inner wall of the second shell form a complete circle. The stator shell comprises a first stator arranged on the inner wall of the first shell in an inserted mode and a second stator arranged on the inner wall of the second shell in an inserted mode, the first stator and the second stator form the stator shell, and the single-screw pump rotor has the effect of facilitating disassembly and assembly of the single-screw pump rotor.

Description

technical field [0001] The present application relates to the technical field of screw pump equipment, in particular to a single screw pump. Background technique [0002] The single-screw pump is a rotor-type positive displacement pump, which relies on the intermeshing of the screw and the bushing to produce volume changes in the suction cavity and the discharge cavity to transport liquid. It is an internal meshing closed screw pump, and the main working part is composed of a bushing with a double-ended helical cavity and a single-ended helical screw meshing with it in the stator cavity. When the input shaft drives the rotor to make a planetary rotation around the center of the stator through the universal joint, the stator and the rotor pair are continuously meshed to form a sealed cavity. The rotor pair is transported to the extrusion end, and the medium sucked into the closed cavity flows through the stator without being agitated and destroyed. [0003] The single screw...

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Problems solved by technology

[0004] Currently, the rotor of the single screw pump is relatively difficult to install, and the medium is filled in the stator cavity after use, which makes the disassembly of the rotor more troublesome. Therefore, the inventor believes that there is an urgent need for a stator cavity that is easy to disassemble to facilitate the rotor of the single screw pump. disassembly

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