CN2635617Y - Variable-pitch screw - Google Patents
Variable-pitch screw Download PDFInfo
- Publication number
- CN2635617Y CN2635617Y CN 03271648 CN03271648U CN2635617Y CN 2635617 Y CN2635617 Y CN 2635617Y CN 03271648 CN03271648 CN 03271648 CN 03271648 U CN03271648 U CN 03271648U CN 2635617 Y CN2635617 Y CN 2635617Y
- Authority
- CN
- China
- Prior art keywords
- variable
- spiral
- pitch
- utility
- center shaft
- Prior art date
- 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.)
- Expired - Fee Related
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- Screw Conveyors (AREA)
Abstract
A helical structure for transporting and compressing materials is disclosed. The external diameters of the helical vanes get smaller while the pitches of the vanes get narrower, while the central axle remains the same. When materials are helically driven by the helical structure, as the discharging volume becomes smaller, the aim of compressing and condensing is achieved.
Description
Affiliated technical field
The utility model relates to a kind of spiral, especially can convey materials can compress the spiral of material and concentrated material again.
Background technology
At present, common spiral is that the center diameter of axle is constant, and the external diameter of helicallobe, pitch are also constant, mainly are to be used for convey materials, can not be used for the compression of material and concentrates.
Summary of the invention
In order to solve the problem that spiral can only the convey materials function singleness, the utility model provides a kind of variable-pitch propeller, and both realizing can convey materials, again the purpose that can compress and concentrate material.
The technical scheme that its technical matters that solves the utility model adopts is: the external diameter of helicallobe from large to small, pitch narrows down by wide, and center shaft is constant.Because center shaft is constant, the external diameter of spiral from large to small, the ability of its convey materials is diminishing gradually, thus material has been subjected to extruding; Because of pitch is narrowed down by wide, volume is also dwindling gradually again, so the utility model both can convey materials, can compress and concentrates material again.The concrete method for making of spiral: earlier the spiral center shaft is processed, the blade that will make is placed on the axle again, moves that pitch welds to or in type thick helicallobe is welded, and whole more at last processing spindle nose arrives size.
The beneficial effects of the utility model are: in convey materials, realization is compressed material and is concentrated.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model structural representation
1. spiral center shaft, 2. helicallobes among the figure
The specific embodiment
In Fig. 1, earlier the center shaft diameter of axle is worked into size φ 200, the diameter that will make is placed on the center shaft φ 200 by each blade that φ 420 changes to φ 354 again, drawing pitch branch is clipped to 268,230,200,182,170,163 and welds, or in type thick helicallobe welded, whole more at last processing spindle nose is to size.
Claims (1)
1. spiral comprises that center shaft forms, and the external diameter that it is characterized in that helicallobe from large to small, pitch narrows down by wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271648 CN2635617Y (en) | 2003-08-29 | 2003-08-29 | Variable-pitch screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271648 CN2635617Y (en) | 2003-08-29 | 2003-08-29 | Variable-pitch screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635617Y true CN2635617Y (en) | 2004-08-25 |
Family
ID=34300818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03271648 Expired - Fee Related CN2635617Y (en) | 2003-08-29 | 2003-08-29 | Variable-pitch screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635617Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218281A (en) * | 2011-05-05 | 2011-10-19 | 河南工业大学 | Spiral wheat distributor |
| WO2012006906A1 (en) * | 2010-07-14 | 2012-01-19 | Du Keyong | Biomass energy burner |
| CN108328268A (en) * | 2018-03-03 | 2018-07-27 | 中核(天津)科技发展有限公司 | A kind of lathe auger type chip removal device and chip removal method |
-
2003
- 2003-08-29 CN CN 03271648 patent/CN2635617Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012006906A1 (en) * | 2010-07-14 | 2012-01-19 | Du Keyong | Biomass energy burner |
| CN102218281A (en) * | 2011-05-05 | 2011-10-19 | 河南工业大学 | Spiral wheat distributor |
| CN108328268A (en) * | 2018-03-03 | 2018-07-27 | 中核(天津)科技发展有限公司 | A kind of lathe auger type chip removal device and chip removal method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |