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Eccentric worm pump with split stator

An eccentric screw pump and stator technology, applied to pumps, mechanical equipment, rotary piston pumps, etc., can solve the troublesome problems of plug-in stators, and achieve the effect of simple manufacture, simple installation and replacement

Active Publication Date: 2013-05-15
SEEPEX GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, however, the installation of this type of plug-in stator is often laborious and involves extensive dismantling of eccentric screw pumps

Method used

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  • Eccentric worm pump with split stator
  • Eccentric worm pump with split stator
  • Eccentric worm pump with split stator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The drawing shows an eccentric screw pump, which in its basic construction has a stator 1 made of elastic material and a rotor 2 mounted in the stator 1, wherein the stator 1 is at least partially Surrounded by a stator sleeve 3 . In addition, the above-mentioned pump has a suction housing 4 and a connecting line 5, which is also called a pressure line. Not shown is a similarly arranged drive, wherein the drive is via a connecting rod, which is only briefly shown. 6 works on rotor 2. The connecting rod is connected via a joint shaft on the one hand to the rotor 2 and on the other hand to a drive shaft (not shown), wherein only the rotor-side hinge 7 is shown on the joint shaft. The above-mentioned pumps are usually mounted on a base 8 which is only schematically shown, wherein in this context it can be a base 8 supplied with the pump or also a base present on the application side. The stator 1 is connected via its one end to the connecting flange 9 of the suction hous...

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PUM

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Abstract

An eccentric screw pump has a plurality of segments extending along an axis and together forming a tubular casing generally centered on the axis and a plurality of axially extending stator shells of elastic material together forming inside the casing a tubular stator having axially opposite ends each having centered on the axis a frustoconical end seal surface. The stator shells are separable from the casing segments. An intake housing has a connecting flange formed centered on the axis with a frustoconical flange surface fitted with one of the end seal surfaces of the stator, and an output fitting has a connecting flange formed centered on the axis with a frustoconical flange surface fitted with the other of the end seal surfaces of the stator. A rotor extends axially in the stator, the stator being clamped by the casing against the rotor.

Description

technical field [0001] The invention relates to an eccentric screw pump comprising at least one stator made of elastic material and a rotor mounted in the stator, wherein the stator is at least partially surrounded by a stator sleeve or stator housing. In such eccentric screw pumps, the rotor is usually connected to the drive or the drive shaft via at least one coupling rod, which is also called a cardan shaft. The aforementioned pump has a suction housing and a connecting pipe, wherein the stator is connected via its one end to the connecting flange of the suction housing and via its other end to the connecting flange of the connecting pipe. Within the framework of the present invention, an elastic material means in particular an elastomer such as (synthetic) rubber or compound rubber. Composite materials consisting of elastomers or another material, for example metal, are also included. Background technique [0002] Eccentric screw pumps are known in practice, in which t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/107
CPCF04C2/1075
Inventor D·勒克M·索博莱夫斯基
Owner SEEPEX GMBH
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