CN1480650A - Inner gearing dual rotors screw pump - Google Patents
Inner gearing dual rotors screw pump Download PDFInfo
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- CN1480650A CN1480650A CNA021354758A CN02135475A CN1480650A CN 1480650 A CN1480650 A CN 1480650A CN A021354758 A CNA021354758 A CN A021354758A CN 02135475 A CN02135475 A CN 02135475A CN 1480650 A CN1480650 A CN 1480650A
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- rotor
- bearing
- screw pump
- external rotor
- gear
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Abstract
An internally-engaged dual-rotor screw pump for delivering liquid on the ground or underground immersible purpose is disclosed. Its external rotor is internally engaged with its internal rotor. If it is used for delivering liquid on the ground, its dual-rotor engaging structure is housed in a casing with external rotor driven mechanism. If it is used as underground immersible pump, said engaging structure is housed in a non-rotary casing.
Description
One. technical field
The present invention relates to a kind of ground and carry the inner gearing dual rotors screw pump of the latent oil of liquid or down-hole.
Two. background technique
The present invention be claimant or inventor oneself invention and apply for a patent: " grading type screw pump " patent No. is that ZL9320768.3, " inner gearing dual rotors screw pump " patent No. are ZL96247482.7 and design on the basis of " the external driving inner gearing dual rotors ground screw pump " of application recently.Do not have solution because difficulty of processing reaches key technology greatly, never push society to.So also there is following problem in the screw pump of using in the society at present:
1. existing screw pump is that screw rotor rotates, and does not rotate with the stator of its engagement, and matching allowance is big, thereby resistance to motion is big, and mechanical efficiency is low.
2. because rotor swing must add universal driving device and balancing pole mechanism, make its mechanism's complexity; Axial seal is difficult to guarantee that mechanical failure is many, makes its failure-free operation cycle short.
3. often gnawed badly between rotor and the stator, make its short running life.
Three. summary of the invention
The objective of the invention is above-mentioned shortcoming, designed a kind of inner gearing dual rotors screw pump for the screw pump that overcomes present use.
Technological scheme of the present invention realizes in the following manner:
The inner gearing dual rotors screw pump that is used for the ground transfusion of the present invention, the internal rotor two ends are supported by the bearing support of two splits by rotating shaft, engagement in external rotor and the internal rotor, the external rotor periphery is done rotation with the bearing that is embedded in two bearing support end inside and is cooperated, external rotor periphery middle part is provided with gear, the diaxon bearing is spacing by the length of external rotor institute, the overall structure of engagement is embedded in the housing that is provided with the external rotor driving mechanism in the inner and outer rotors, make the set driving gear engagement of actuation gear and external rotor middle part of external rotor driving mechanism, actuation gear is connected with motor by belt pulley set on the gear shaft or directly is connected with motor;
The internal rotor of the inner gearing dual rotors screw pump of the latent liquid in down-hole of the present invention is supported by the bearing support of two splits by inner rotor shaft.Engagement in external rotor and the internal rotor, periphery are done rotation with the bearing of two bearing support end inside that are embedded in internal rotor and are cooperated, and the diaxon bearing is spacing by the length of external rotor institute.The overall structure of inner and outer rotors engagement is embedded in the housing, and inner rotor shaft is connected with latent liquid motor by coupling, and the liquid motor of diving is connected with the ground power supply control cabinet by cable;
The inner gearing dual rotors screw pump of ground transfusion adds the metal-coating type but its inner and outer rotors full-metallic type or external rotor are nonmetallic material.External rotor middle part gear can or be bonded on the metal body by screw, locates to be provided with the cam of two 180 degree that interlace about it; The inner rotor shaft bolster is round hat, interior peripheral hardware convex platform rank, and diaxon bearing split space is provided with lubricant oil with edge bearing place and is pickled with grains or in wine, and internal rotor bearings at both ends place is provided with the bearing seal cap, is provided with pass liquid hole around the bearings at both ends; Shell cast is a cylindrical shape, its middle part and top internal diameter are greater than the bottom internal diameter, the reducing place freely cooperates with the bearing support external diameter, be cast with the gear-box of actuation gear in the middle and upper part of housing periphery, the bottom is cast with the fuel tank of establishing two plunger pumps in one, and the lubricant oil on plunger delivery side of pump and the bearing support is poor to be communicated with, oil circuit is communicated with fuel tank.
Ground transfusion or down-hole dive the liquid inner gearing dual rotors screw pump axially or radial seal structure by the convex bearing support, be embedded in bearing at end, be pressed in the middle part around with the alloy cast aluminium cylindrical body of seal ring, press axial thrust seal ring and Sealing thereon, the axial pressure levelling ring that is pressed on the Sealing to form.Sealing can be selected felt oil seal or lips outside framework oil seal or square human relations Sealing for use according to the linear velocity size of pump.
The present invention compares with used screw pump and has the following advantages:
1. it is steady that inner gearing dual rotors screw pump, operation process do not have swing, friction, running.Running speed is up to more than the 3000r/min; Single stage of pressure surpasses 1MPa; The pump efficiency height.
2. inner and outer rotors is no sideshake engagement, running movingly, anti-idle running, anti-dry grinding, and noise is little.
3. remove disappeared reducing gear, universal driving device, balancing pole, simple in structure, compact, running is reliable, the life-span is long.
4. sealing configuration is reasonable, has satisfied seal request of the present invention, has solved the difficult problem of screw pump sealing.
Four. description of drawings
The inner gearing dual rotors screw pump structural representation of Fig. 1-ground transfusion
The inner gearing dual rotors screw pump structural representation of the latent liquid in Fig. 2-down-hole
The structural representation of Fig. 3-Fig. 1, Fig. 2 bottom bracket sealing mechanism
Five. embodiment
In order further to disclose the technological scheme of inner gearing dual rotors screw pump of the present invention, be described in detail by embodiment below in conjunction with Figure of description:
Example 1: as shown in Figure 1
The inner gearing dual rotors screw pump of ground transfusion, its internal rotor 28 two ends are supported by two split bearing supports 24 by rotating shaft, and external rotor 21 is done rotation with internal rotor 28 interior engagements, periphery with the bearing 22 that is embedded in two bearing support 24 end inside and is cooperated.External rotor 21 peripheries middle part is provided with gear 19, and diaxon bearing 24 is spacing by the length of external rotor 21 institute.The overall structure of engagement is embedded in the housing 3 that is provided with the external rotor driving mechanism in the inner and outer rotors, make the actuation gear 11 and set driving gear 19 engagements in external rotor middle part of external rotor driving mechanism, actuation gear is connected with motor or directly is connected with motor shaft by set belt pulley 7 on the gear shaft 10.
Specific implementation process: as shown in Figure 1, component-assembled shown in the sequence number is become ground transfusion inner gearing dual rotors screw pump, again screw pump is connected in liquid-transport pipe-line, belt pulley 7 and motor pulley are coupled together with v belt by assembly program.Starting electrical machinery drives actuation gear 11 and rotates, and driving gear 19 rotates thereupon, and external rotor 21 rotates and drives internal rotor 28 rotations, and liquid sucks from an end of screw pump, discharges from the other end.The plunger that cam 35 on the external rotor drives small plunger pumps 36 pumps, and the lubricant oil of fuel tank is flowed to bearing 31, bearing 32, bearing 22 from the bearing support oil duct, gets back to fuel tank 37 again from the loop.Because internal rotor, outer rotor bearing place have adopted newly-designed sealing mechanism, as shown in Figure 3.The inner rotor bearing place has added bearing cap 27 in addition, makes the sealing of pump reliable.Inner and outer rotors meshes, no swing, noise free, good seal, be not afraid of thick, be not afraid of sand, be not afraid of gas, so ground of the present invention transfusion inner gearing dual rotors screw pump lift height, discharge capacity is big, pump efficiency is high.
Example 2: as shown in Figure 2
The internal rotor 8 ' by inner rotor shaft of inner gearing dual rotors screw pump of liquid is dived by two branches in the down-hole The bearing block 4 of body ' support outer rotor 9 ' with internal rotor 8 ' interior engagement, periphery and in being embedded in The outer rotor bearing 12 of two bearing block end inside of rotor ' do rotation cooperates. Two bearing blocks Outer rotor 9 ' length institute spacing, the overall structure of inner and outer rotors engagement be embedded in housing 19 ' in, Inner rotor bearing 3 ' be connected with latent liquid motor by shaft coupling, the liquid motor of diving is by cable and ground electricity The source switch board connects. This pump can be connected into multistage, makes up depending on the degree of depth of the liquid of diving. This pump is with latent The liquid centrifugal electric pump compare its advantage be not afraid of gas, be not afraid of sand, be not afraid of thick, good seal, the lift height, The pump efficiency height. 1. import and export flange 20. screws 2. mat 21. bush type outer rotors 3. housing 22. bearings 4. screw 23. sleeves 5. lock fills up 24. bearing blocks 6. key 25 overlaps 7. belt pulley 26. outer rotor seals 8. transparent cover 27. inner rotor bearings cover 9. seal 28. internal rotors 10. gear shaft 29. internal rotor seals 11. driven wheel 30. round nuts 12. key 31. bearings 13. gear box cover 32. bearings 14. bearing spacer 33. screws 15. bearing 34. O RunddichtringOs 16. round nut 35. cams 17. screw 36. small plunger pumps 18. stifle 37. fuel tank bottoms 19. gear 1. ' entrance sleeve 11. ' double jump rings 2. ' transparent cover 12. ' outer rotor bearing 3. ' inner rotor bearing 13 ' outer rotor combined sealed body 4. ' bearing block 14 ' round nut 5. ' imported bearing seat 15 ' outlet bearing block 6. ' pump shaft 16. ' stifle 7. ' key 17. ' screw 8. ' internal rotor 18 ' sleeve 9. ' outer rotor 19 ' housing 10 ' spacer 1. " bearing block 5. " sealed rotary body 2. " bearing 6. " axially only piles sealing ring 3. " rotary body 7. " seal 4. " radial seal ring 8. " axial compressive force adjustment ring
Claims (6)
1. one kind is used for the inner gearing dual rotors screw pump that liquid is carried on ground, it is characterized in that the internal rotor two ends are supported by two split bearing supports by rotating shaft, engagement in external rotor and the internal rotor, periphery is done rotation with the bearing that is embedded in two bearing support end inside and is cooperated, external rotor periphery middle part is provided with gear, the diaxon bearing is spacing by the length of external rotor institute, the overall structure of engagement is embedded in the housing that is provided with the external rotor driving mechanism in the inner and outer rotors, make the set driving gear engagement of actuation gear and external rotor middle part of external rotor driving mechanism, actuation gear is connected with motor by belt pulley set on the gear shaft or directly is connected with motor shaft.
2. one kind is used for the dive inner gearing dual rotors screw pump of liquid of down-hole, it is characterized in that internal rotor is supported by the bearing support of two splits by inner rotor shaft, engagement in external rotor and the internal rotor, periphery is done rotation with the bearing of two bearing support end inside that are embedded in internal rotor and is cooperated, the length institute of two bearing block external rotors is spacing, the overall structure of inner and outer rotors engagement is embedded in the housing, inner rotor shaft is connected with latent liquid motor by coupling, and the liquid motor of diving is connected with the ground power supply control cabinet by cable.
3. inner gearing dual rotors screw pump according to claim 1, but it is characterized in that inner and outer rotors full-metallic type, or external rotor is that nonmetallic material add the metal-coating type, and external rotor middle part gear can or be bonded on the metal body by screw, locates to be provided with the cams of two 180 degree that interlace about it.
4. inner gearing dual rotors screw pump according to claim 1, it is characterized in that the inner rotor shaft bolster is round hat, interior peripheral hardware convex platform rank, diaxon bearing split space is provided with lubricant oil with edge bearing place and is pickled with grains or in wine, internal rotor bearings at both ends place is provided with the bearing seal cap, is provided with pass liquid hole around the bearings at both ends.
5. inner gearing dual rotors screw pump according to claim 1, it is characterized in that shell cast is a cylindrical shape, middle part and top internal diameter are greater than the bottom internal diameter, its reducing freely cooperates with the outer reducing of bearing support, be cast with the gear-box of actuation gear in the middle and upper part of housing periphery, the bottom is cast with the fuel tank of establishing two plunger pumps in one, and the lubricant oil of plunger delivery side of pump and bearing support is poor to be communicated with, oil circuit is communicated with fuel tank.
6. according to claim 1,2 described inner gearing dual rotors screw pumps, it is characterized in that sealing configuration by the convex bearing support, be embedded in bearing at end, be pressed in the middle part around with the alloy cast aluminium cylinder of seal ring, press thereon axial thrust seal ring and Sealing, be pressed in the axial pressure adjustment ring of Sealing on it and form, Sealing can be selected felt oil seal or lips outside framework oil seal or square human relations Sealing for use according to the linear velocity size of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021354758A CN1480650A (en) | 2002-09-06 | 2002-09-06 | Inner gearing dual rotors screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021354758A CN1480650A (en) | 2002-09-06 | 2002-09-06 | Inner gearing dual rotors screw pump |
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| Publication Number | Publication Date |
|---|---|
| CN1480650A true CN1480650A (en) | 2004-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021354758A Pending CN1480650A (en) | 2002-09-06 | 2002-09-06 | Inner gearing dual rotors screw pump |
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| CN (1) | CN1480650A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975159A (en) * | 2010-10-27 | 2011-02-16 | 克拉玛依宏吉工程建设有限责任公司 | Double-stator single-rotor screw motor consubstantial pump |
| CN103452839A (en) * | 2013-09-12 | 2013-12-18 | 朱海川 | Inner screw rod type fluid conveying equipment |
| CN111550400A (en) * | 2020-05-14 | 2020-08-18 | 天津市百利溢通电泵有限公司 | Axial-flow type inner gearing displacement pump with outer rotor provided with rubber inner bushing |
| CN111706505A (en) * | 2020-06-28 | 2020-09-25 | 西南石油大学 | Inner gearing double screw pump |
-
2002
- 2002-09-06 CN CNA021354758A patent/CN1480650A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975159A (en) * | 2010-10-27 | 2011-02-16 | 克拉玛依宏吉工程建设有限责任公司 | Double-stator single-rotor screw motor consubstantial pump |
| CN101975159B (en) * | 2010-10-27 | 2013-04-10 | 克拉玛依宏吉工程建设有限责任公司 | Double-stator single-rotor screw motor consubstantial pump |
| CN103452839A (en) * | 2013-09-12 | 2013-12-18 | 朱海川 | Inner screw rod type fluid conveying equipment |
| CN103452839B (en) * | 2013-09-12 | 2017-02-15 | 朱海川 | Inner screw rod type fluid conveying equipment |
| CN111550400A (en) * | 2020-05-14 | 2020-08-18 | 天津市百利溢通电泵有限公司 | Axial-flow type inner gearing displacement pump with outer rotor provided with rubber inner bushing |
| CN111706505A (en) * | 2020-06-28 | 2020-09-25 | 西南石油大学 | Inner gearing double screw pump |
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