CN106151027A - Metal composite screw pump rotor - Google Patents
Metal composite screw pump rotor Download PDFInfo
- Publication number
- CN106151027A CN106151027A CN201610769165.4A CN201610769165A CN106151027A CN 106151027 A CN106151027 A CN 106151027A CN 201610769165 A CN201610769165 A CN 201610769165A CN 106151027 A CN106151027 A CN 106151027A
- Authority
- CN
- China
- Prior art keywords
- metal composite
- pump rotor
- screw pump
- groove
- sealing strip
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of metal composite screw pump rotor, belong to screw pump technology field.Described metal composite screw pump rotor, including screw rod, the convex surface top of described screw flight has groove, is inlaid with and its close-fitting soft sealing strip in groove.The metal composite screw pump rotor of the present invention, by inlaying soft sealing strip on screw flight convex surface top, on the premise of retaining original metallic rotator basic function, solves abrasion and the sealing problem of metal stator and metallic rotator.
Description
Technical field
The present invention relates to a kind of metal composite screw pump rotor, belong to screw pump technology field.
Background technology
The range of application of screw pump is relatively wide, is mainly used in the conveying of various liquid medium, and traditional screw pump mainly uses
Elastomer stator and the structure of metallic rotator.And use elastomer stator to easily cause screw pump stator and lost efficacy, the reason that generally lose efficacy had
Fricative abrasion between stator and rotor, stator rubber are burnt by high temperature and lose bearing capacity and i.e. burn pump, stator rubber office
Portion occurs tear to make stator profile be destroyed, the adhesive failure etc. between stator rubber and sleeve.In order to avoid due to rubber
The screw pump Problem of Failure that the inefficacy of glue stator brings, screw pump uses the structure of metal stator and metallic rotator, but works as screw pump
When using metal stator, matched in clearance must be used between metal stator and metallic rotator, cause metal stator and metallic rotator
Sealability difference, the suction capacity of pump and the pressure loss are serious, and there is certain abrasion.
Content of the invention
It is an object of the invention to a kind of metal composite screw pump rotor providing for above-mentioned deficiency, this rotor solves
The abrasion of metal stator and metallic rotator and sealing problem.
The technical solution adopted for the present invention to solve the technical problems is: a kind of metal composite screw pump rotor, including spiral shell
Bar, the convex surface top of described screw flight has groove, is inlaid with and its close-fitting soft sealing strip in groove.
Further, described screw flight is double end circular thread, or is three circular threads.
Further, described soft sealing strip is made up of fluorine, butyronitrile, silicon rubber or polytetrafluoroethylmaterial material.
Further, described soft sealing strip is embedded in groove, and passes through adhesive bonding.
Further, the cross section ovalize of described screw rod or triangle circular arc.
Further, the cross section of described groove is trapezoidal.
Further, described soft sealing strip is provided with a plurality of sealing cutting edge, soft sealing on the top of rotor rotation direction side
Cross section one end of bar is circular arc, and the other end is trapezoidal, and inside is provided with groove.
The invention has the beneficial effects as follows: the metal composite screw pump rotor of the present invention, by screw flight convex surface top
End inlays soft sealing strip, on the premise of retaining original metallic rotator basic function, solves metal stator and metallic rotator
Sealing and wear problem；It is provided with a plurality of sealing cutting edge on the top of soft sealing strip rotor rotation direction side, be used for compensating metal
Stator and the fit clearance of rotor, it is ensured that the sealing property of metal stator and metallic rotator, thus avoid all-metal screw pump certainly
Inhale ability, the shortcoming of insufficient pressure.
Brief description
The present invention is further described with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the main sectional view of the embodiment of the present invention 1.
Fig. 2 is the side view of the embodiment of the present invention 1.
Fig. 3 is the main sectional view of the embodiment of the present invention 2.
Label in figure:
1st, screw rod, the 2nd, screw thread, the 3rd, convex surface, the 4th, groove, the 5th, soft sealing strip.
Detailed description of the invention
Embodiment 1
As shown in Figure 1-2, a kind of metal composite screw pump rotor, including screw rod 1, convex surface 3 top of the screw thread 2 of described screw rod 1
Have groove 4, be inlaid with in groove 4 and its close-fitting soft sealing strip 5.
Further, the screw thread 2 of described screw rod 1 is double end circular thread.
Further, described soft sealing strip 5 is made up of fluorine, butyronitrile, silicon rubber or polytetrafluoroethylmaterial material.
Further, described soft sealing strip 5 is bonding by adhesive with groove 4.
Further, the cross section ovalize of described screw rod 1.
Further, the cross section of described groove 4 is trapezoidal.
Further, described soft sealing strip 5 is provided with a plurality of sealing cutting edge, soft sealing on the top of rotor rotation direction side
Cross section one end of bar 5 is circular arc, and the other end is trapezoidal, and inside is provided with groove.
Embodiment 2
A kind of metal composite screw pump rotor, including screw rod 1, convex surface 3 top of the screw thread 2 of described screw rod 1 has groove 4, recessed
It is inlaid with in groove 4 and its close-fitting soft sealing strip 5.
Further, the screw thread 2 of described screw rod 1 is three circular threads.
Further, described soft sealing strip 5 is made up of fluorine, butyronitrile, silicon rubber or polytetrafluoroethylmaterial material.
Further, described soft sealing strip 5 is bonding by adhesive with groove 4.
Further, the cross section of described screw rod 1 is triangle circular arc.
Further, the cross section of described groove 4 is trapezoidal.
Further, described soft sealing strip 5 is provided with a plurality of sealing cutting edge, soft sealing on the top of rotor rotation direction side
Cross section one end of bar 5 is circular arc, and the other end is trapezoidal, and inside is provided with groove.
Claims (7)
1. a metal composite screw pump rotor, including screw rod (1), it is characterised in that: the screw thread (2) of described screw rod (1) convex
Face (3) top has groove (4), is inlaid with and its close-fitting soft sealing strip (5) in groove (4).
2. metal composite screw pump rotor according to claim 1, it is characterised in that: the screw thread (2) of described screw rod (1) is
Double end circle-arc screw-thread or three circle-arc screw-threads.
3. metal composite screw pump rotor according to claim 1, it is characterised in that: described soft sealing strip (5) is by fluorine
Rubber, butyronitrile, silicon rubber or polytetrafluoroethylmaterial material are made.
4. metal composite screw pump rotor according to claim 1, it is characterised in that: described soft sealing strip (5) with recessed
Groove (4) passes through adhesive bonding.
5. metal composite screw pump rotor according to claim 1, it is characterised in that: the cross section of described screw rod (1) in
Ellipse or triangle circular arc.
6. metal composite screw pump rotor according to claim 1, it is characterised in that: the cross section of described groove (4) in
Trapezoidal.
7. metal composite screw pump rotor according to claim 6, it is characterised in that: described soft sealing strip (5) is turning
The top of sub-rotation direction side is provided with a plurality of sealing cutting edge, and the cross section of soft sealing strip (5), one end is circular arc, and one end is ladder
Shape, closely cooperates with groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769165.4A CN106151027A (en) | 2016-08-31 | 2016-08-31 | Metal composite screw pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769165.4A CN106151027A (en) | 2016-08-31 | 2016-08-31 | Metal composite screw pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151027A true CN106151027A (en) | 2016-11-23 |
Family
ID=57345246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610769165.4A Pending CN106151027A (en) | 2016-08-31 | 2016-08-31 | Metal composite screw pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173732A (en) * | 2019-12-31 | 2020-05-19 | 盐城世宏石油装备有限公司 | Electric submersible screw pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4187061A (en) * | 1977-05-05 | 1980-02-05 | Christensen, Inc. | Rotary helical fluid motor with deformable sleeve for deep drilling tool |
| CN101240795A (en) * | 2007-02-09 | 2008-08-13 | 通用电气公司 | Screw pump rotor and method of reducing slip flow |
| CN202468309U (en) * | 2011-12-09 | 2012-10-03 | 杨振平 | Screw pump with rigid stator and elastic rotor |
| CN202510361U (en) * | 2011-12-31 | 2012-10-31 | 重庆明珠机电有限公司 | Single screw rod pair |
| CN205154621U (en) * | 2015-11-23 | 2016-04-13 | 重庆高研泵业有限公司 | Screw pump rotor |
-
2016
- 2016-08-31 CN CN201610769165.4A patent/CN106151027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4187061A (en) * | 1977-05-05 | 1980-02-05 | Christensen, Inc. | Rotary helical fluid motor with deformable sleeve for deep drilling tool |
| CN101240795A (en) * | 2007-02-09 | 2008-08-13 | 通用电气公司 | Screw pump rotor and method of reducing slip flow |
| CN202468309U (en) * | 2011-12-09 | 2012-10-03 | 杨振平 | Screw pump with rigid stator and elastic rotor |
| CN202510361U (en) * | 2011-12-31 | 2012-10-31 | 重庆明珠机电有限公司 | Single screw rod pair |
| CN205154621U (en) * | 2015-11-23 | 2016-04-13 | 重庆高研泵业有限公司 | Screw pump rotor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173732A (en) * | 2019-12-31 | 2020-05-19 | 盐城世宏石油装备有限公司 | Electric submersible screw pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |