CN2408275Y - Single screw pump - Google Patents
Single screw pump Download PDFInfo
- Publication number
- CN2408275Y CN2408275Y CN 99256944 CN99256944U CN2408275Y CN 2408275 Y CN2408275 Y CN 2408275Y CN 99256944 CN99256944 CN 99256944 CN 99256944 U CN99256944 U CN 99256944U CN 2408275 Y CN2408275 Y CN 2408275Y
- Authority
- CN
- China
- Prior art keywords
- outer steel
- steel sleeve
- lining
- helical rotor
- screw rod
- 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 relates to a single screw pump, which is used for conveying materials in the fields of chemical industries, food, grain and oil, buildings, environment protection, papermaking, textile, metallurgy, etc. The utility model is composed of a screw, a lining sleeve and an outer steel sleeve, and is characterized in that the screw forms a clearance fit with the lining sleeve; the outer steel sleeve is provided with an adjusting groove or a broken opening; a clip is sheathed out of the outer steel sleeve to cause the inner diameter of the outer steel sleeve to be fine adjusted. The section of the screw is in a circle, an ellipse, a parabola shape or other curve shape. The utility model solves the problem of abandonment caused by pressure reduction in the pump after the lining sleeve of the single screw pump is worn, enhances the pumping efficiency, and extends the service life to two to three times.
Description
The utility model belongs to pumping machine, particularly relates to a kind of helical rotor pump.
Helical rotor pump is widely used in fields such as petrochemical industry, food, grain and oil, building, environmental protection, papermaking, weaving and metallurgy at present.Usually, helical rotor pump is made up of screw rod, rubber bushing and outer steel sleeve, and outer steel sleeve is enclosed within on the lining.In application process, drive the screw rod to-and-fro motion by power plant, in pump, produce pressure, thus can conveyance fluid or other loose material.When the rubber bushing wearing and tearing, screw rod and gap, lining contacting point are strengthened, and the pressure of pump is more and more littler, and pumping efficiency reduces gradually.When to a certain degree pressure can't be set up, general screw pump was promptly scrapped.Make the working life of helical rotor pump shorter.Adopt interference fit between the screw rod of part helical rotor pump and the lining simultaneously, wearing and tearing are violent, quickened the process that helical rotor pump is scrapped.
The purpose of this utility model provides a kind of novel helical rotor pump, improves pumping efficiency, solves short problem of helical rotor pump life-span.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of helical rotor pump is made up of screw rod, lining and outer steel sleeve, and outer steel sleeve is enclosed within on the lining, it is characterized in that the internal diameter of outer steel sleeve can be regulated, and has hoop sleeve thereon outward.
The adjustment groove is arranged on the described outer steel sleeve.
Have one to disconnect opening on the described outer steel sleeve.
There is the camber backing plate described outer steel sleeve inboard, every disconnecting between opening and the lining.
It between described screw rod and the lining Spielpassung.
The adjustment bolt is arranged on the described clip.
Be Spielpassung between described screw rod and the lining, the adjustment bolt is arranged on the clip.
On described screw rod and the lining screw thread is arranged, the rotation direction of screw thread is identical.
The helical pitch of described lining equals or approaches two times screw pitch.
The cross section of described screw rod is circular, oval, parabola shaped or other curve shape.
The utility model has the advantages that:
The outer steel sleeve of helical rotor pump has clip to clamp, when the rubber bushing wearing and tearing, during excesssive gap between screw rod and the rubber bushing, tighten clip, clip promptly compresses outer steel sleeve, outer steel sleeve compresses rubber bushing, gap between screw rod and the rubber bushing is reduced, pressure recovery, the pumping efficiency of helical rotor pump improves, again can proper functioning, prolonged working life.On outer steel sleeve, have the opening of adjusting groove or disconnection, when making wearing clearance bigger, equally can be by adjusting clip, make outer steel sleeve under the impacting force effect of clip, produce bigger footpath and contract, thereby compress rubber bushing more tightly, guarantee normal pumping efficiency.Adopt Spielpassung between the screw rod of helical rotor pump and the lining, the sharp wear phenomenon of having avoided interference fit to produce has delayed the wearing and tearing of rubber bushing and the reduction of pump internal pressure, and has improved pumping efficiency, has prolonged 2-3 times of working life.The utility model is described in more detail below in conjunction with accompanying drawing:
Fig. 1 is a cross-sectional configuration schematic representation of the present utility model;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is the screw pump sectional drawing that band disconnects opening on the outer steel sleeve;
Fig. 4 screw rod of the present utility model cooperates schematic representation with lining.
Helical rotor pump is made up of clip 4, outer steel sleeve 3, rubber bushing 2 and screw rod 1, and the bolt 5 of adjustment is arranged on the clip, and the groove 6 of adjustment is arranged on the outer steel sleeve 3.The outside thread that has evolution on the screw rod 1 has the double end internal thread on the rubber bushing 2, outside thread is identical with the rotation direction of double end internal thread.The cross section of screw rod 1 can be circular, oval, parabola shaped or other curve shape.Also can establish one on the outer steel sleeve and disconnect opening 7, the inboard pad of outer steel sleeve lastblock camber backing plate 8 is every disconnecting between opening 7 and the rubber bushing 2.When the rubber sleeve wearing and tearing, screw rod and gap, lining contacting point are increased to when to a certain degree pumping pressure can't be set up, and general screw pump is promptly scrapped.And for this helical rotor pump, because leave the opening that spill is adjusted groove or disconnection is arranged on the outer steel sleeve, and the overcoat clip can be tightened the adjustment bolt on the clip, and this moment, clip promptly compressed outer steel sleeve, the internal diameter trace of outer steel sleeve shrinks, compress rubber bushing, the gap between screw rod and the rubber bushing is reduced, pressure can recover, helical rotor pump again can proper functioning, this design proposal can prolong helical rotor pump working life 2-3 doubly.
The utility model helical rotor pump is widely used in fields such as petrochemical industry, food, grain and oil, building, environmental protection, papermaking, weaving and metallurgy.In application process, drive the screw rod to-and-fro motion by power plant, in pump, produce pressure, thus can conveyance fluid or other loose material.Thereby if adopt other adjusting outer steel sleeve to compress rubber bushing, make the pump internal pressure keep normal technological scheme, also belong to the scope of the utility model protection.
Claims (10)
1. a helical rotor pump is made up of screw rod, lining and outer steel sleeve, and outer steel sleeve is enclosed within on the lining, is characterised in that outer steel sleeve is the outer steel sleeve that internal diameter can be regulated, and has hoop sleeve outward thereon.
2. helical rotor pump as claimed in claim 1 is characterized in that the adjustment groove is arranged on the described outer steel sleeve.
3. helical rotor pump as claimed in claim 1 is characterized in that having on the described outer steel sleeve one to disconnect opening.
4. helical rotor pump as claimed in claim 3 is characterized in that there is the camber backing plate described outer steel sleeve inboard, every disconnecting between opening and the lining.
5. as claim 1,2,3 or 4 described helical rotor pumps, it is characterized in that being between described screw rod and the lining Spielpassung.
6. as claim 1,2,3 or 4 described helical rotor pumps, it is characterized in that the adjustment bolt is arranged on the described clip.
7. as claim 1,2,3 or 4 described helical rotor pumps, it is characterized in that being Spielpassung between described screw rod and the lining that the adjustment bolt is arranged on the clip.
8. helical rotor pump as claimed in claim 7 is characterized in that on described screw rod and the lining screw thread being arranged, and the rotation direction of screw thread is identical.
9. helical rotor pump as claimed in claim 8, the helical pitch that it is characterized in that described lining equal or approach two times screw pitch.
10. helical rotor pump as claimed in claim 9 is characterized in that the cross section of described screw rod is circular, oval, parabola shaped or other curve shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256944 CN2408275Y (en) | 1999-12-16 | 1999-12-16 | Single screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256944 CN2408275Y (en) | 1999-12-16 | 1999-12-16 | Single screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2408275Y true CN2408275Y (en) | 2000-11-29 |
Family
ID=34039959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256944 Expired - Fee Related CN2408275Y (en) | 1999-12-16 | 1999-12-16 | Single screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2408275Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680503B (en) * | 2007-05-17 | 2011-08-17 | 三菱电机株式会社 | Bushing for fixing device and device fixing unit using the same |
| CN108938072A (en) * | 2018-06-07 | 2018-12-07 | 佛山市长郡科技有限公司 | A kind of bone cement injection control apparatus and its application method |
| CN108938071A (en) * | 2018-06-07 | 2018-12-07 | 佛山市长郡科技有限公司 | A kind of bone cement injection device |
-
1999
- 1999-12-16 CN CN 99256944 patent/CN2408275Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680503B (en) * | 2007-05-17 | 2011-08-17 | 三菱电机株式会社 | Bushing for fixing device and device fixing unit using the same |
| CN108938072A (en) * | 2018-06-07 | 2018-12-07 | 佛山市长郡科技有限公司 | A kind of bone cement injection control apparatus and its application method |
| CN108938071A (en) * | 2018-06-07 | 2018-12-07 | 佛山市长郡科技有限公司 | A kind of bone cement injection device |
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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 |