CN103452839A - Inner screw rod type fluid conveying equipment - Google Patents
Inner screw rod type fluid conveying equipment Download PDFInfo
- Publication number
- CN103452839A CN103452839A CN2013104162119A CN201310416211A CN103452839A CN 103452839 A CN103452839 A CN 103452839A CN 2013104162119 A CN2013104162119 A CN 2013104162119A CN 201310416211 A CN201310416211 A CN 201310416211A CN 103452839 A CN103452839 A CN 103452839A
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- rotor
- tooth
- external
- conveying equipment
- internal
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- 239000012530 fluid Substances 0.000 title claims abstract description 31
- 239000000126 substance Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 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
- 238000013459 approach Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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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 formula conveying equipment for fluid substances, a kind of conveying equipment for fluid substances that adopts the spirality inner and outer rotors, belong to the conveying equipment for fluid substances technical field specifically.
Background technique
Pump/compressor is the mechanical energy of prime mover to be converted to the machine of the energy of liquid/gas, and it is for the conveying of fluid.Pump/compressor belongs to universal machine, uses very extensive.Present screw rod pump/compressor (single screw rod, twin-screw, three screw rods and five screw rods) belong to the screw pump/type of compressor in the displacement pump scope, because its loss is little, pressure is higher, operate steadily, vibration and noise is low, the life-span is long, efficiency is high, applicable class of liquids and range of viscosities wide and be used widely.
External gear pump and internal gear pump (comprise the star moon internal gear pump and Gerotor pump) are arranged in the market, and internal gear pump is little due to volume, the gear rotating in same direction is and wear-resistant relatively, and self-priming is large, the higher and extensive use of the dielectric viscosity of permission.Internal gear pump not only has and the same two-way function of external gear pump---and be that live axle turns to change, pump is imported and exported exchange, but also the perseverance with uniqueness that external gear pump and other most of pumps do not have is to function---be that live axle turns to change, pump is imported and exported constant.Current screw pump is all the external screw rod pump, is that development comes on the basis of external gear pump, has retained the characteristics of many external gears, but the inner screw pump do not come from the internal gear pump development makes the inner screw pump have many distinct advantages of internal gear pump.
Equally, the helical-lobe compressor for the gas exploitation is also the external screw rod type at present, without the inner screw compressor.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thereby a kind of inner screw formula conveying equipment for fluid substances is provided, adopt the spiral inner and outer rotors of rotating in same direction, improved the sealing of conveying equipment for fluid substances, small volume.
According to technological scheme provided by the invention, inner screw formula conveying equipment for fluid substances comprises internal rotor, external rotor, bearing and eccentric bushing, the eccentric bushing inner ring is provided with bearing, bearing inner race is provided with external rotor, bearing outer ring is near the eccentric bushing inner ring, bearing inner race, near the external rotor outer ring, is characterized in that: be provided with fluid chamber in external rotor, be provided with internal rotor in fluid chamber; Described external rotor inner ring along the circumferential direction is provided with spiral external rotor internal tooth, and the internal rotor outer ring along the circumferential direction is provided with spiral internal rotor external tooth, external rotor and internal rotor engagement rotating in same direction.
Further, the tooth top of the tooth root of internal rotor external tooth and external rotor internal tooth matches, and the tooth root of the tooth top of internal rotor external tooth and external rotor internal tooth matches.
Further, the number of teeth of internal rotor external tooth and external rotor internal tooth is poor is more than or equal to 1.
Further, the internal rotor external tooth is different with the pitch of external rotor internal tooth, and spiral angle is identical, is 0 ~ 90 °.
Further, connect sealing plate in the eccentric bushing one or both sides.
Further, sealing plate is for semicircle.
Further, bearing outer ring connects eccentric bushing.
Compared with the prior art the present invention has the following advantages:
The present invention is simple in structure, compact, reasonable, and volume is little, wear-resistant, the viscosity applied range, and the dry ability of turning is strong, and the number of teeth (number) range of choice is large, good airproof performance.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is sectional view of the present invention.
Fig. 3 is the inner rotor core schematic diagram.
Fig. 4 is the outer-rotor structure schematic diagram.
Fig. 5 is internal rotor external tooth profile of tooth figure.
Fig. 6 is external rotor internal tooth profile of tooth figure.
Fig. 7 is inner and outer rotors mesh schematic representation in prior art.
Fig. 8 is inner and outer rotors mesh schematic representation of the present invention.
Description of reference numerals: 1-internal rotor, 2-external rotor, 3-sealing plate, 4-internal rotor external tooth, 5-external rotor internal tooth, 6-bearing, 7-eccentric bushing, 8-fluid chamber.
Embodiment
Following the present invention is further described in connection with the embodiment in accompanying drawing:
As shown in Fig. 1 ~ 4, the present invention mainly comprises internal rotor 1, external rotor 2 and bearing 6, and bearing 6 inner rings are provided with external rotor 2, and bearing 6 inner rings are near external rotor 2 outer rings.Described bearing 6 outer rings connect eccentric bushing 7, and eccentric bushing 7 is convenient to processing and the installation of internal rotor 1 and external rotor 2.
Be provided with fluid chamber 8 in external rotor 2, be provided with internal rotor 1 in fluid chamber 8.Described external rotor 2 inner rings along the circumferential direction are provided with spiral external rotor internal tooth 5, and internal rotor 1 outer ring along the circumferential direction is provided with spiral internal rotor external tooth 4.External rotor 2 and internal rotor 1 engagement rotating in same direction.
As shown in Fig. 5 ~ 6, the tooth top of the tooth root of internal rotor external tooth 4 and external rotor internal tooth 5 matches, and the tooth root of the tooth top of internal rotor external tooth 4 and external rotor internal tooth 5 matches.
Described internal rotor external tooth 4 is more than or equal to 1 with the number of teeth of external rotor internal tooth 5 is poor.
Described internal rotor external tooth 4 is different with the pitch of external 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 chamber 8 that approaches half.Realize that by sealing plate 3 auxiliary seal reduces the sealed precision of inner and outer rotors between cog, thereby it is lower that profile of tooth is required, more easily manufacture.
As shown in Figure 7, inner and outer rotors of the prior art adopts the straight-tooth engagement, has stayed larger space between the inner and outer rotors profile of tooth, flowing medium by the time can form leakage.As shown in Figure 8, external tooth engagement in the spirality that the present invention adopts, formed hermetically sealedly, and sealing improves greatly.
Structure of the present invention can be applied in screw pump and helical-lobe compressor field, and its volume is little, wear-resistant, the viscosity applied range, and the dry ability of turning is strong, and the number of teeth (number) range of choice is large.
Claims (7)
1. an inner screw formula conveying equipment for fluid substances, comprise internal rotor (1), external rotor (2) and bearing (6), bearing (6) inner ring is provided with external rotor (2), bearing (6) inner ring is near external rotor (2) outer ring, it is characterized in that: be provided with fluid chamber (8) in external rotor (2), be provided with internal rotor (1) in fluid chamber (8); Described external rotor (2) inner ring along the circumferential direction is provided with spiral external rotor internal tooth (5), and internal rotor (1) outer ring along the circumferential direction is provided with spiral internal rotor external tooth (4), external rotor (2) and internal rotor (1) engagement rotating in same direction.
2. inner screw formula conveying equipment for fluid substances as claimed in claim 1, it is characterized in that: the tooth top of the tooth root of described internal rotor external tooth (4) and external rotor internal tooth (5) matches, and the tooth root of the tooth top of internal rotor external tooth (4) and external rotor internal tooth (5) matches.
3. inner screw formula conveying equipment for fluid substances as claimed in claim 1 is characterized in that: described internal rotor external tooth (4) is more than or equal to 1 with the number of teeth of external rotor internal tooth (5) is poor.
4. inner screw formula conveying equipment for fluid substances as claimed in claim 1, it is characterized in that: described internal rotor external tooth (4) is different with the pitch of external rotor internal tooth (5), and spiral angle is identical, is 0 ~ 90 °.
5. inner screw formula conveying equipment for fluid substances as claimed in claim 1, is characterized in that: connect sealing plate (3) in eccentric bushing (7) one or both sides.
6. inner screw formula conveying equipment for fluid substances as claimed in claim 5 is characterized in that: described sealing plate (3) is for semicircle.
7. inner screw formula conveying equipment for fluid substances as claimed in claim 1, is characterized in that: described bearing (6) outer ring connection eccentric bushing (7).
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 true CN103452839A (en) | 2013-12-18 |
| CN103452839B 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) |
Cited By (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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02181081A (en) * | 1988-12-28 | 1990-07-13 | Kyocera Corp | Single shaft eccentric screw pump |
| CN2300624Y (en) * | 1996-09-09 | 1998-12-16 | 慕承武 | Inner gearing birotor 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 |
| JP2006214414A (en) * | 2005-02-07 | 2006-08-17 | Heishin Engineering & Equipment Co Ltd | Eccentric screw-pump equipment of direct drive type |
| 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 |
-
2013
- 2013-09-12 CN CN201310416211.9A patent/CN103452839B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02181081A (en) * | 1988-12-28 | 1990-07-13 | Kyocera Corp | Single shaft eccentric screw pump |
| CN2300624Y (en) * | 1996-09-09 | 1998-12-16 | 慕承武 | Inner gearing birotor 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 |
| JP2006214414A (en) * | 2005-02-07 | 2006-08-17 | Heishin Engineering & Equipment Co Ltd | Eccentric screw-pump equipment of direct drive type |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103452839B (en) | 2017-02-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
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 |
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| TR01 | Transfer of patent right |