CN103452839B - Inner screw rod type fluid conveying equipment - Google Patents
Inner screw rod type fluid conveying equipment Download PDFInfo
- Publication number
- CN103452839B CN103452839B CN201310416211.9A CN201310416211A CN103452839B CN 103452839 B CN103452839 B CN 103452839B CN 201310416211 A CN201310416211 A CN 201310416211A CN 103452839 B CN103452839 B CN 103452839B
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- Prior art keywords
- rotor
- tooth
- internal
- conveying equipment
- outer rotor
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- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 239000000126 substance Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
The invention relates to inner screw rod type fluid conveying equipment, particularly discloses fluid conveying equipment adopting inner and outer rotors, and belongs to the technical field of fluid conveying equipment. The fluid conveying equipment comprises an inner rotor, an outer rotor, a bearing and an eccentric sleeve, wherein the outer rotor is internally provided with a fluid cavity, and the fluid cavity is internally provided with the inner rotor; an inner ring of the outer rotor is provided with a spiral inner gear of the outer rotor along the peripheral direction, an outer ring of the inner rotor is provided with a spiral outer gear of the inner rotor along the peripheral direction, and the outer rotor and the inner rotor are meshed and can rotate in a homonymous manner. The inner screw rod type fluid conveying equipment provided by the invention has the advantages that the structure is simple, compact and reasonable, the volume is small, the wearproof perform is realized, the viscosity application range is wide, the hollow rotation capacity is high, the selecting range of gear number (counting number) is large, and the leakproofness is good.
Description
Technical field
The present invention relates to a kind of inner screw rod type conveying equipment for fluid substances, specifically a kind of employing spirality inner and outer rotors
Conveying equipment for fluid substances, belongs to conveying equipment for fluid substances technical field.
Background technology
Pump/compressor is the machine of the energy mechanical energy of prime mover being converted to liquid/gas, and it is used for the defeated of fluid
Send.Pump/compressor belongs to universal machine, using widely.Present screw rod pump/compressor（Single screw rod, twin-screw, three spiral shells
Bar and five screw rods）Belong to the screw pump/type of compressor in the range of displacement pump, because its loss is little, pressure is higher, run flat
Surely, vibration and noise is low, life-span length, efficiency high, applicable class of liquids and range of viscosities wide and be used widely.
There are external gear pump and internal gear pump in the market（Including star moon internal gear pump and Gerotor pump）, and internal gear pump by
In small volume, opposed gear rotating in same direction and wear-resistant, self-priming big it is allowed to dielectric viscosity higher and extensively apply.Internal gear
Pump not only has and drives axle steer to change with the same two-way function of external gear pump, and pump is imported and exported and exchanged, but also has
The perseverance of the uniqueness that external gear pump and other most of pump do not have drives axle steer to change to function, and pump is imported and exported not
Become.Current screw pump is all external screw rod pump, is to develop to come on the basis of external gear pump, remains the spy of many external gears
Point, but the inner screw pump not come from internal gear pump development, make inner screw pump have many particular advantages of internal gear pump.
Equally, the helical-lobe compressor developed for gas at present is also external screw rod type, no inner screw compressor.
Content of the invention
It is an object of the invention to overcoming above-mentioned weak point, thus providing a kind of inner screw rod type conveying equipment for fluid substances, adopt
With the spiral inner and outer rotors of rotating in same direction, improve the sealing of conveying equipment for fluid substances, small volume.
According to the present invention provide technical scheme, inner screw rod type conveying equipment for fluid substances include internal rotor, outer rotor, bearing and
Eccentric bushing, eccentric bushing inner ring is provided with bearing, and bearing inner race is provided with outer rotor, and bearing outer ring is against eccentric bushing inner ring, bearing inner race
Against outer rotor outer ring, it is characterized in that：It is provided with fluid cavity in outer rotor, in fluid cavity, be provided with internal rotor；Described outer rotor inner ring
Along the circumferential direction it is provided with spiral outer rotor internal tooth, internal rotor outer ring is along the circumferential direction provided with spiral internal rotor external tooth,
Outer rotor and internal rotor engagement rotating in same direction.
Further, the tooth root of internal rotor external tooth is matched with the tooth top of outer rotor internal tooth, the tooth top of internal rotor external tooth with
The tooth root of outer rotor internal tooth matches.
Further, internal rotor external tooth and the number of teeth difference of outer rotor internal tooth are more than or equal to 1.
Further, internal rotor external tooth is different with the pitch of outer rotor internal tooth, and spiral angle is identical, is 0 ~ 90 °.
Further, connect sealing plate in eccentric bushing one or both sides.
Further, sealing plate is semicircle.
Further, bearing outer ring connects eccentric bushing.
Compared with the prior art the present invention has advantages below：
Present configuration is simple, compact, reasonable, and small volume is wear-resistant, viscosity applied range, and the dry ability of turning is strong, the number of teeth
（Head number）Range of choice is big, good airproof performance.
Brief description
Fig. 1 is present configuration schematic diagram.
Fig. 2 is sectional view of the present invention.
Fig. 3 is inner rotor core schematic diagram.
Fig. 4 is outer-rotor structure schematic diagram.
Fig. 5 is internal rotor external tooth profile of tooth figure.
Fig. 6 is outer rotor internal tooth profile of tooth figure.
Fig. 7 is inner and outer rotors mesh schematic representation in prior art.
Fig. 8 is the inner and outer rotors mesh schematic representation of the present invention.
Description of reference numerals：1- internal rotor, 2- outer rotor, 3- sealing plate, 4- internal rotor external tooth, 5- outer rotor internal tooth, 6-
Bearing, 7- eccentric bushing, 8- fluid cavity.
Specific embodiment
The embodiment combining in accompanying drawing is further described by the present invention below：
As shown in Fig. 1 ~ 4, the invention mainly comprises internal rotor 1, outer rotor 2 and bearing 6, bearing 6 inner ring is provided with outer rotor
2, bearing 6 inner ring is against outer rotor 2 outer ring.Described bearing 6 outer ring connects eccentric bushing 7, and eccentric bushing 7 is easy to internal rotor 1 and outer turn
The processing of son 2 and installation.
It is provided with fluid cavity 8 in outer rotor 2, in fluid cavity 8, be provided with internal rotor 1.Described outer rotor 2 inner ring along the circumferential direction sets
There is spiral outer rotor internal tooth 5, internal rotor 1 outer ring is along the circumferential direction provided with spiral internal rotor external tooth 4.Outer rotor 2 He
Internal rotor 1 engages rotating in same direction.
As shown in Fig. 5 ~ 6, the tooth root of internal rotor external tooth 4 is matched with the tooth top of outer rotor internal tooth 5, internal rotor external tooth 4
Tooth top is matched with the tooth root of outer rotor internal tooth 5.
Described internal rotor external tooth 4 is more than or equal to 1 with the number of teeth difference of outer rotor internal tooth 5.
Described internal rotor external tooth 4 is different with the pitch of outer rotor internal tooth 5, and spiral angle is identical, is 0 ~ 90 °.
Connect semicircular sealing plate 3 in eccentric bushing 7 one or both sides, sealing plate 3 covers the fluid cavity close to half
8.The sealed precision that auxiliary seal reduces inner and outer rotors between cog is realized by sealing plate 3, so that profile of tooth requirement is lower, is more easy to
Manufacture.
As shown in fig. 7, inner and outer rotors of the prior art adopt straight-tooth to engage, leave larger between inner and outer rotors profile of tooth
Space, fluid media (medium) by when can form leakage.As shown in figure 8, external tooth engagement in the spirality of present invention employing, formed
Hermetically sealed, sealing greatly improves.
The structure of the present invention can be applied in screw pump and helical-lobe compressor field, and its small volume is wear-resistant, and viscosity should
Wide with scope, the dry ability of turning is strong, the number of teeth（Head number）Range of choice is big.
Claims (4)
1. a kind of inner screw rod type conveying equipment for fluid substances, including internal rotor（1）, outer rotor（2）And bearing（6）, bearing（6）Inner ring sets
There is outer rotor（2）, bearing（6）Inner ring is against outer rotor（2）Outer ring, is characterized in that：Outer rotor（2）Inside it is provided with fluid cavity（8）, stream
Body cavity（8）In be provided with internal rotor（1）；Described outer rotor（2）Inner ring is along the circumferential direction provided with spiral outer rotor internal tooth（5）,
Internal rotor（1）Outer ring is along the circumferential direction provided with spiral internal rotor external tooth（4）, outer rotor（2）And internal rotor（1）Engagement is in the same direction
Rotate；Described bearing（6）Outer ring connects eccentric bushing（7）；In eccentric bushing（7）One or both sides connect sealing plate（3）, described close
Shrouding（3）For semicircle, cover the fluid cavity close to half.
2. inner screw rod type conveying equipment for fluid substances as claimed in claim 1, is characterized in that：Described internal rotor external tooth（4）Tooth root
With outer rotor internal tooth（5）Tooth top match, internal rotor external tooth（4）Tooth top and outer rotor internal tooth（5）Tooth root match.
3. inner screw rod type conveying equipment for fluid substances as claimed in claim 1, is characterized in that：Described internal rotor external tooth（4）Turn with outer
Sub- internal tooth（5）The number of teeth difference be more than or equal to 1.
4. inner screw rod type conveying equipment for fluid substances as claimed in claim 1, is characterized in that：Described internal rotor external tooth（4）Turn with outer
Sub- internal tooth（5）Pitch different, spiral angle is identical, is 0 ~ 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416211.9A CN103452839B (en) | 2013-09-12 | 2013-09-12 | Inner screw rod type fluid conveying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416211.9A CN103452839B (en) | 2013-09-12 | 2013-09-12 | Inner screw rod type fluid conveying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103452839A CN103452839A (en) | 2013-12-18 |
| CN103452839B true CN103452839B (en) | 2017-02-15 |
Family
ID=49735573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310416211.9A Active CN103452839B (en) | 2013-09-12 | 2013-09-12 | Inner screw rod type fluid conveying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103452839B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401951A (en) * | 2015-08-03 | 2017-02-15 | 上海易昆机械工程有限公司 | Helical rotor for rotor pump, and rotor pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02181081A (en) * | 1988-12-28 | 1990-07-13 | Kyocera Corp | Single shaft eccentric screw pump |
| CN1480650A (en) * | 2002-09-06 | 2004-03-10 | 慕承武 | Inner gearing dual rotors screw pump |
| CN2608722Y (en) * | 2003-04-01 | 2004-03-31 | 周毕华 | Diesel emulsified pump |
| JP2010209732A (en) * | 2009-03-09 | 2010-09-24 | Furukawa Industrial Machinery Systems Co Ltd | Uniaxial eccentric screw pump |
| CN203548191U (en) * | 2013-09-12 | 2014-04-16 | 朱海川 | Inner screw type fluid conveying device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2300624Y (en) * | 1996-09-09 | 1998-12-16 | 慕承武 | Inner gearing birotor screw pump |
| JP4122398B2 (en) * | 2005-02-07 | 2008-07-23 | 兵神装備株式会社 | Direct drive eccentric screw pump device |
-
2013
- 2013-09-12 CN CN201310416211.9A patent/CN103452839B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02181081A (en) * | 1988-12-28 | 1990-07-13 | Kyocera Corp | Single shaft eccentric screw pump |
| CN1480650A (en) * | 2002-09-06 | 2004-03-10 | 慕承武 | Inner gearing dual rotors screw pump |
| CN2608722Y (en) * | 2003-04-01 | 2004-03-31 | 周毕华 | Diesel emulsified pump |
| JP2010209732A (en) * | 2009-03-09 | 2010-09-24 | Furukawa Industrial Machinery Systems Co Ltd | Uniaxial eccentric screw pump |
| CN203548191U (en) * | 2013-09-12 | 2014-04-16 | 朱海川 | Inner screw type fluid conveying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103452839A (en) | 2013-12-18 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201127 Address after: 21429, Wuyi Road, Wuxi, Jiangsu Province Patentee after: Puchuan fluid equipment (Wuxi) Co., Ltd Address before: 601 room 144, Taihu garden, New District, Jiangsu, Wuxi 214028, China Patentee before: Zhu Haichuan |