CN2059940U - Sectionalized combination type single screw-stem pump bush - Google Patents
Sectionalized combination type single screw-stem pump bush Download PDFInfo
- Publication number
- CN2059940U CN2059940U CN 90201543 CN90201543U CN2059940U CN 2059940 U CN2059940 U CN 2059940U CN 90201543 CN90201543 CN 90201543 CN 90201543 U CN90201543 U CN 90201543U CN 2059940 U CN2059940 U CN 2059940U
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- Prior art keywords
- lining
- bush
- segmentation
- sectionalized
- combination type
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a sectionalized combination type single screw-stem pump bush, composed of a plurality of section bushes and a clamping sleeve pipe. A positioning slot is arranged on one end of the section bush. A positioning pin is arranged on the other end of the section bush. The length of the section bush is 1/4 or 1__ of one spiral guiding distance in the bush. The utility model has the advantages of artful structure, strong applicability and convenient cleaning. According to the requirement for the pressure of the processing medium, the utility model can be optionally combined into the bush with the different lengths. The sectionalized combination type structure enhances the processing accuracy of the inner liner.
Description
The utility model relates to a kind of sectionally assembled helical rotor pump lining.
In known technology, the lining that helical rotor pump is used is to be bonded by whole rigidity sleeve pipe and flexible liner.In actual use, increase or reduce pressure as desire, under the identical situation in bar footpath to machining medium, to or shorten the screw rod lengthening, at this moment just need change the lining identical with its length, give like this to produce and prepare to make troubles, the screw rod of different length must be prepared the lining of different length; The flexible liner of lining is to be formed by rubber or plastic products compacting, such inner lining material has certain breathing amount in course of working, because whole liner is very long, and the corresponding increasing of its breathing amount, be difficult to meet the drawing size requirement after the compacting, can not guarantee the size positions precision of its curved surface molded lines; In addition, when screw pump is carried some medium, need frequent cleaning in the lining, because the spiral hole of integral lining is longer, so be not easy to clean up.
The purpose of this utility model is to overcome that deficiency has designed a kind of sectionally assembled helical rotor pump lining in the known technology.
The purpose of this utility model realizes by following measure:
The said lining body of the utility model is made up of several segmentation linings and a clamp sleeve.One end of segmentation lining is provided with a locating slot, and the other end and its maintenance space are provided with a locating stud for 90 °.The length of segmentation lining is 1/4 or 11/4 of the interior lead of screw of pump stator lining.
Advantage of the present utility model is that structure is ingenious, and applicability is strong, can be arbitrarily made with the different lining of length in actual use; Because flexible liner is that segmentation processing forms, its breathing amount reduces, and has guaranteed machining accuracy; Sectionally assembled structure has made things convenient for the cleaning in the lining.
Description of drawings:
Fig. 1 is lining body assembling schematic representation;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is lining body structure figure;
Fig. 4 is segmentation bush structure figure;
Fig. 5 is the plan view of Fig. 4.
In conjunction with the accompanying drawings embodiment of the present utility model is described in further detail:
The utility model is mainly by forming with the segmentation sleeve pipe of steel pipe manufacturing with segmentation lining and a clamp sleeve made from steel pipe that the segmentation liner of rubber or plastic products manufacturing is made.2 places of segmentation sleeve pipe 1 are provided with inner stopper, be provided with outer stopper at 3 places, 4 places, the outside at inner stopper are provided with a locating slot, 5 places on the outer stopper next door are provided with a pinhole that is used for installing and locating pin 6, the position of locating slot and pinhole keeps 90 ° in space mutually, the degree of depth of inner stopper can form the groove around inwall by the inwall at sleeve pipe greater than the degree of depth of outer stopper when the mutual socket of segmentation sleeve pipe.One end, 10 places of segmentation liner 9 are provided with outer stopper, and the other end 11 places are provided with inner stopper, form groove when 7 places, the outside between segmentation liner two ends are provided with a size with the sleeve pipe socket big or small identical seal around flange.One end of clamp sleeve 8 and segmentation sleeve pipe are provided with the identical inner stopper that also is provided with of structure of inner stopper one end, and its outside also is provided with a locating slot, and the other end is concordant shape in order to dock its structure with the pump intake end.A segmentation sleeve pipe and the die casting of a segmentation liner are bonded together, load onto locating stud, promptly constitute single segmentation lining.The length of each segmentation lining is 1/4 of the interior lead of screw (being that the spiral molded lines whenever rotates a circle) of pump stator lining, also can be 11/4, divides the combination in any of being convenient to the segmentation lining like this.During combination, the locating slot of the locating stud of segmentation lining being aimed at another segmentation lining connects each segmentation lining cover successively, and the entry end at lining connects clamp sleeve at last, promptly constitutes the lining body of an integral body.When installing and using, utilize the flange plate of screw pump entry end and outlet end, connect the lining body fastening with 4 hold-down bolts 12.Length about the segmentation lining can also be 1/2 or lead of screw of a lead of screw, as long as the position of locating slot and locating stud is provided with 180 ° in mutual maintenance space or 360 °.
Claims (1)
1, a kind of sectionally assembled helical rotor pump lining, the lining body of being made up of rigid casing and flexible liner constitutes, it is characterized in that said lining body is made up of several segmentation linings and a clamp sleeve, one end of segmentation lining is provided with a locating slot, the other end and its maintenance space are provided with a locating stud for 90 °, and the length of segmentation lining is 1/4 or 11/4 of the interior lead of screw of pump stator lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201543 CN2059940U (en) | 1990-02-12 | 1990-02-12 | Sectionalized combination type single screw-stem pump bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201543 CN2059940U (en) | 1990-02-12 | 1990-02-12 | Sectionalized combination type single screw-stem pump bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2059940U true CN2059940U (en) | 1990-08-01 |
Family
ID=4883130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90201543 Withdrawn CN2059940U (en) | 1990-02-12 | 1990-02-12 | Sectionalized combination type single screw-stem pump bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2059940U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448644C (en) * | 2004-07-01 | 2009-01-07 | 青岛科技大学 | One-step injection forming and valcanizing equipment and method for screw pump (screw drilling tool) stator rubber bush |
| CN101892982A (en) * | 2010-06-28 | 2010-11-24 | 中国石油大学(北京) | Single-screw metal screw pump stator and processing method for inner helical surface thereof |
| CN102062089A (en) * | 2010-12-24 | 2011-05-18 | 新疆华易石油工程技术有限公司 | Method for machining full metal screw pump stator |
| CN101666209B (en) * | 2009-09-18 | 2012-07-04 | 中国石油大学(华东) | Variable volume screw-bushing pair for screw drilling tools |
-
1990
- 1990-02-12 CN CN 90201543 patent/CN2059940U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448644C (en) * | 2004-07-01 | 2009-01-07 | 青岛科技大学 | One-step injection forming and valcanizing equipment and method for screw pump (screw drilling tool) stator rubber bush |
| CN101666209B (en) * | 2009-09-18 | 2012-07-04 | 中国石油大学(华东) | Variable volume screw-bushing pair for screw drilling tools |
| CN101892982A (en) * | 2010-06-28 | 2010-11-24 | 中国石油大学(北京) | Single-screw metal screw pump stator and processing method for inner helical surface thereof |
| CN102062089A (en) * | 2010-12-24 | 2011-05-18 | 新疆华易石油工程技术有限公司 | Method for machining full metal screw pump stator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |