CN2187686Y - Double-rotation differential screw pump - Google Patents
Double-rotation differential screw pump Download PDFInfo
- Publication number
- CN2187686Y CN2187686Y CN 94201600 CN94201600U CN2187686Y CN 2187686 Y CN2187686 Y CN 2187686Y CN 94201600 CN94201600 CN 94201600 CN 94201600 U CN94201600 U CN 94201600U CN 2187686 Y CN2187686 Y CN 2187686Y
- Authority
- CN
- China
- Prior art keywords
- pump
- screw
- double
- rotation
- sleeve
- 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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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a double-rotation differential screw pump. The double-rotation differential screw pump is provided with a screw and a pump sleeve. The screw and the pump sleeve are respectively supported on a pump body by a screw bearing and a pump sleeve bearing according to the designed center distance. In this way, when the screw is dragged by the original movable shaft to do fixing shaft rotation, the pump sleeve is driven by an inner tooth to do the other fixing shaft rotation. Due to the fact that the transmission ratio of the screw and the pump sleeve is 2, relative motion exists, and the function of pump transport is realized. The utility model has the advantages that due to the fact that the screw and the pump sleeve only do fixing shaft rotation, motion is simplified, and the damage of various parts and components brought by composite motion is eliminated; meanwhile, the double-rotation differential screw pump can be driven by the original motor with higher rotary speed.
Description
The utility model relates to screw pump, especially relates to two slip dynamic formula helical rotor pumps.
Screw pump is a kind of of rotary pump, by the pump housing and rotate therein one initiatively screw rod and one or a few driven screw rod constitute.When screw rod rotates, rely on the volume-variation in the intermeshing space of driving and driven screw rod to carry liquid, when open in the engagement space of entry end, the suction chamber volume increases, and pressure reduces, and liquid is inhaled into, then, move to the discharge chamber along the screw axial that rotates, outside the excavationg pump.Existing various helical rotor pump because of having various planetary motion or swing, makes the engagement transmission mechanism complexity to be easy to generate the loss of various transmissions and work component.This kind situation is along with the improve of working speed, the increase of flow and heal and become serious.
The purpose of this utility model provides a kind of compound motion of eliminating transmission and engagement to reduce the damage of component, improves two slip dynamic formula helical rotor pumps of functional reliability.
Be illustrated below in conjunction with accompanying drawing.
Accompanying drawing is two slip dynamic formula helical rotor pump structural representations.
Two rotation differential screw pumps have screw rod 1, pump block 2, and be bearing on the pump housing 5 by screw-bearing 3 and the centre-to-centre spacing of pump block bearing 4 by design respectively, screw rod rotates simultaneously with the pump block that is driven by it, like this, do in the System of Rotating about Fixed Axis when screw rod is dragged by primary shaft, in nibble the fixed-axis rotation at another center of driving pump interplanting. When screw rod drove every rotation 2 circle by primary shaft, pump block rotated 1 circle by screw drive, because the two gearratio is 2, has relative motion, realizes pump action. The pump output of its revolution is equivalent to 1/2 of existing various screw pump.
The utility model has the advantages that: because screw rod and pump block are only made System of Rotating about Fixed Axis, simplified motion, eliminated the damage of the various parts that compound motion brings, screw pump can be driven by more high-revolving prime mover.
Claims (2)
1, a kind of pair of slip dynamic formula helical rotor pump is characterized in that it has screw rod [1], pump block [2], and be bearing on the pump housing [5] by screw-bearing [3] and pump block bearing [4] respectively, screw rod rotates simultaneously with the pump block that is driven by it.
2, a kind of pair of slip dynamic formula helical rotor pump according to claim 1 is characterized in that the velocity ratio that said screw rod and the pump block that is driven by it rotate simultaneously is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94201600 CN2187686Y (en) | 1994-01-24 | 1994-01-24 | Double-rotation differential screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94201600 CN2187686Y (en) | 1994-01-24 | 1994-01-24 | Double-rotation differential screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2187686Y true CN2187686Y (en) | 1995-01-18 |
Family
ID=33821600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94201600 Expired - Fee Related CN2187686Y (en) | 1994-01-24 | 1994-01-24 | Double-rotation differential screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2187686Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061741C (en) * | 1997-05-11 | 2001-02-07 | 洪振声 | Elliptical-rotor single-screw pump |
-
1994
- 1994-01-24 CN CN 94201600 patent/CN2187686Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061741C (en) * | 1997-05-11 | 2001-02-07 | 洪振声 | Elliptical-rotor single-screw pump |
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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 |