CN105179256A - Circulating refueling pump for on-orbit refueling in space - Google Patents
Circulating refueling pump for on-orbit refueling in space Download PDFInfo
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- CN105179256A CN105179256A CN201510484935.6A CN201510484935A CN105179256A CN 105179256 A CN105179256 A CN 105179256A CN 201510484935 A CN201510484935 A CN 201510484935A CN 105179256 A CN105179256 A CN 105179256A
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- pump
- motor
- permanent magnet
- impeller
- space
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Abstract
The invention relates to a circulating refueling pump for on-orbit refueling in space. The circulating refueling pump comprises a motor shell (1), a motor (2), a motor base (5), a permanent magnet coupler (6), permanent magnets (7), an outlet tube (10), a pump shell cover (11), a hoop (12), an impeller (13), a bearing (14), a pump shell (15) and an inlet tube (16). The circulating refueling pump has the advantages of being small in size, light, high in reliability and low in specific speed.
Description
Technical field
The present invention relates to a kind of circulation dispenser pump, be particularly useful for space-orbit filling circulation dispenser pump.
Background technique
Along with the active demand of spacecraft space loading technique in-orbit, especially satellite in-orbit loading technique be still in the development stage in China, circulation dispenser pump is the core component of loading system in-orbit.Chinese Space circulation dispenser pump does not also have ripe products application record.The circulation dispenser pump flow of loading system use is little in-orbit, lift is high, and micropump specific speed is lower.When the design specific speed of pump is lower, engineering generally selects peripheral pump or reciprocating pump.But there are some inevitable defects in reciprocating pump: plunger reciprocates, and sealability cannot ensure; Vibration is large, noise is high; Instability of flow; Reliability is poor, faults frequent, therefore reciprocating pump cannot meeting spatial environment use requirement.As for peripheral pump, because its impeller can move axially, axial rub can occur when starting and stop between impeller and housing, therefore much shorter wanted by the service life as compared centrifugal pump of peripheral pump; And because the cavitation performance of peripheral pump is more far short of what is expected than centrifugal pump; In addition because its lift rating curve is very steep, the operating range of Vortex pump is very narrow.Centrifugal pump structure is simple, part is few, quality is light, easy processing, has life-span length, reliability high, meets the characteristic requirements of astrovehicle to recycle pump.Therefore, filling circulation dispenser pump is a kind of low specific-speed centrifugal pump in-orbit.
In the world for the space-orbit filling circulation dispenser pump of astrovehicle primarily of following several: a kind of is centrifugal pump for MarsPathfinder development, employ the centrifugal pump of driven by Brush-Less DC motor, 4 blade receded disk impellers of this pump are directly installed on motor shaft; Be embedded with hall effect sensor in motor stator, rotor is lubricated by graphite bearing supporting, working medium; A kind of is the centrifugal pump adopting multi-stage impeller; A kind of is the gear pump designed based on positive displacement.These three kinds of pumps all have certain disadvantages, and the gap between motor shaft and impeller adopts mechanical seal cause the service life reduction of pump and there is certain leakage, and multi-stage impeller and gear pump cause complex structure, and the probability broken down improves.
The pump quality used in current China astrovehicle is all at more than 1kg, and development of new pump, reduces total quality, and reducing pump volume is the growth requirement of dispenser pump of circulating at present.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provides the space-orbit filling circulation dispenser pump that a kind of volume is little, lightweight, reliability is high, specific speed is low.The volume of circulation dispenser pump is 2/3 of same performance pump, and mass range is at 0.4 ~ 0.6kg, and specific speed is minimum reaches 18.
Technical solution of the present invention is: comprise motor casing, motor, bolt A, pad A, motor cabinet, permanent magnet clutch, permanent magnet, pad B, bolt B, outer pipe, pump case lid, clip, impeller, bearing, pump case, inlet tube, hexagon socket head cap screw; Motor adopts 3 bolt A to be fixed on motor casing by motor cabinet, motor casing directly contacts with motor, rapidly the heat that motor produces can be passed to motor casing, pump case is passed to by motor casing heat transfer, the fluid of pump case inside is finally utilized to be taken away by heat, make the temperature of motor remain constant, ensure the long-play of motor.Permanent magnet adopts the fit system of interference fit to match with clip and permanent magnet clutch, adopts bolt to be fixed on motor shaft by permanent magnet clutch.Motor shaft and permanent magnet clutch contact position symmetrical machining facet, touch fixing bolt in plane, strengthens fixed friction power.Impeller, based on centrifugal design, adopts bearings, is fixed on the axle of protrusion in the middle of non-rotary pump case lid, and wheel backface permanent magnet adopts the structure identical with permanent magnet clutch to be fixed, and ensures to transmit enough moments of torsion.The axle front end that pump case lid protrudes relies on the cylindrical hole of pump case inside to be fixed, the swing of axle when preventing from running up.Pump case lid and pump case adopt welded structure to seal, and inside does not exist any sealing configuration and Sealing.Pump case and motor casing adopt 8 bolt B to be connected and fixed, and motor is by motor cabinet, motor casing and the displacement of pump case lid restrictive axial simultaneously.Pump case and inlet tube, outer pipe adopt electron beam welding to weld together.
The present invention compared with prior art tool has the following advantages:
(1) volume of circulation dispenser pump is 2/3 of same performance pump, and mass range is at 0.3 ~ 0.5kg, and specific speed is minimum reaches 18.
(2) the present invention adopts Magnetic driving technology to realize impeller to be separated with motor component, and the pump case inside that impeller is placed on enclosed construction realizes the zero leakage of circulation dispenser pump.
(3) difference of pump impeller dorsal part clip and permanent magnet height remains on 0.3 ~ 0.5mm, makes pump dorsal part have back blade function, effectively can offset the axial force of impeller.
(4) bearing self-lubricating design.Bearing adopts ceramic bearing, increases the wear-resisting property of bearing, improves bearing working life.1.05 times that Circularhole diameter is this place's pump case lid shaft diameter are opened in the middle of impeller.When the impeller is rotated, impeller central forms low pressure, and impeller outer edge forms high pressure, and fluid defines a complete loop at impeller dorsal part, can lubricating bearings through bearing by the fluid in this loop, and is taken away by the heat that pivot friction produces.
(5) space cycle dispenser pump lighter in weight of the present invention, volume is little, efficiency is high and constant voltage is good, the quality of circulation dispenser pump is less than 0.5kg, and under 0 ~ 2 times of design discharge, lift change is no more than 10%, has excellent constant voltage performance.
Accompanying drawing explanation
Fig. 1 is a kind of space-orbit filling circulation dispenser pump sketch of the present invention;
Fig. 2 is permanent magnet clutch structural drawing of the present invention;
Fig. 3 is blade wheel structure figure of the present invention;
Fig. 4 is blade wheel structure axial plane figure of the present invention;
Fig. 5 is impeller back of the present invention and permanent magnet erection drawing;
Fig. 6 is yoke configurations plan view of the present invention;
Fig. 7 is yoke configurations side view of the present invention.
Embodiment
As shown in Figure 1, a kind of space-orbit filling circulation dispenser pump of the present invention, comprises motor casing 1, motor 2, bolt A3, pad A4, motor cabinet 5, permanent magnet clutch 6, permanent magnet 7, pad B8, bolt B 9, outer pipe 10, pump case lid 11, clip 12, impeller 13, bearing 14, pump case 15, inlet tube 16, hexagon socket head cap screw 17; Motor 2 adopts 3 bolt A3 to be fixed on motor casing 1 by motor cabinet 5, motor casing 1 directly contacts with motor 2, rapidly the heat that motor 2 produces can be passed to motor casing 1, pump case 15 is passed to by motor casing 1 heat transfer, the fluid of pump case 15 inside is finally utilized to be taken away by heat, make the temperature of motor 2 remain constant, ensure the long-play of motor 2.Permanent magnet 7 adopts the fit system of interference fit to match with clip 12 and permanent magnet clutch 6, adopts hexagon socket head cap screw 17 to be fixed on motor shaft by permanent magnet clutch 6.Motor shaft and permanent magnet clutch 6 contact position symmetrical machining facet, strengthen the frictional force of fixing hexagon socket head cap screw 17.Impeller 13 is based on centrifugal design, quaterfoil structural design is adopted to ensure the constant voltage of lift, impeller 13 adopts bearing 14 to support, be fixed on the axle of protrusion in the middle of non-rotary pump case lid 11, impeller 13 back side permanent magnet 7 adopts the structure identical with permanent magnet clutch 6 to be fixed, and ensures to transmit enough moments of torsion.Impeller 13 vane tip and pump case 15 gap ensure between 0.1mm ~ 0.4mm, reduce the leakage loss of circulation dispenser pump.The axle front end that pump case lid 11 protrudes relies on the cylindrical hole of pump case 15 inside to be fixed, the swing of axle when preventing from running up.Pump case lid 11 and pump case 15 adopt to weld at position 18 place and seal, and inside does not exist any sealing configuration and Sealing.Pump case 15 and motor casing 1 adopt 8 bolt B 9 to be connected and fixed, and motor 2 is by motor cabinet 5, motor casing 1 and the displacement of pump case lid 15 restrictive axial simultaneously.Pump case 15 and inlet tube 16, outer pipe 10 adopt electron beam welding to weld together.
As shown in Figure 2, for permanent magnet clutch 6 structural representation of the present invention, wherein, A is the angle of fan-shaped permanent magnet 7, together with first clip 12 being installed to permanent magnet 7 when permanent magnet clutch 6 assembles, and then permanent magnet 7 is loaded in permanent magnet clutch 6 in sequence successively, two adjacent permanent magnet 7 polarity are contrary, in order to ensure high efficiency moment of torsion transmission, angle A and permanent magnet clutch 6 think better of each factor with choosing of impeller 13 side permanent magnet 7 spacing, verify that span is 45 ° ~ 55 ° through ground experiment, permanent magnet clutch 6 and impeller 13 side permanent magnet 7 spacing ensure that scope is 2 ~ 4mm.
As shown in Fig. 3, Fig. 4 and Fig. 5, be impeller 13 structural representation of the present invention, permanent magnet 7 is fixed on impeller 13 by clip 12.Impeller 13 adopts quaterfoil structural design, ensures that impeller 13 has constant voltage.
As shown in Figure 6,7, for of the present invention for the clip of fixed permanent magnet 7, the design of this structure is convenient to permanent magnet 7 and is arranged in permanent magnet clutch 6, conveniently installs and fixes.
According to the space-orbit filling circulation dispenser pump of composition described in Fig. 1 ~ 3, there is not any Sealing and sealing configuration in described circulation dispenser pump, and the overall zero leakage adopting welding pattern to realize circulation dispenser pump, gross weight is less than or equal to 0.5kg.
The unexposed technology of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (10)
1. a space-orbit filling circulation dispenser pump, is characterized in that: comprise motor casing (1), motor (2), permanent magnet clutch (6), permanent magnet (7), outer pipe (10), pump case lid (11), clip (12), impeller (13), bearing (14), pump case (15) and inlet tube (16); Motor (2) and motor casing (1) are connected, and pump case (15) and motor casing (1) are connected and fixed; Permanent magnet clutch (6) is fixed on the axle of motor (2); Impeller (13) is supported by bearing (14), be fixed on axle that non-rotary pump case lid (11) protrudes, impeller (13) inner mosaic magnet (7), permanent magnet (7) and permanent magnet clutch (6) adopt clip (12) to fix, and ensure to transmit enough moments of torsion; The axle front end that pump case lid (11) protrudes relies on the inner cylindrical hole of pump case (15) to be fixed, the swing of axle when preventing from running up; Pump case lid (11) seals by welding with pump case (15), there is not any sealing configuration and Sealing in inside, motor (2) is by motor cabinet (5), motor casing (1) and pump case lid (15) restrictive axial displacement simultaneously; Pump case (15) and inlet tube (16), outer pipe (10) weld together.
2. one according to claim 1 space-orbit filling circulation dispenser pump, it is characterized in that: described motor (2) adopts 3 bolt A (3) to be fixed on motor casing (1) by motor cabinet (5), motor casing (1) directly contacts with motor (2), the heat that motor (2) produces is passed to motor casing (1), pump case (15) is passed to by motor casing (1) heat transfer, pump case (15) inner fluid is finally utilized to be taken away by heat, the temperature of motor (2) is made to remain constant, ensure the long-play of motor (2).
3. one according to claim 1 space-orbit filling circulation dispenser pump, it is characterized in that: adopt hexagon socket head cap screw (17) to be fixed on the axle of motor (2) by permanent magnet clutch (6), the axle of motor (2) and permanent magnet clutch (6) contact position symmetrical machining facet, for strengthening the frictional force of fixing hexagon socket head cap screw (17).
4. one according to claim 1 space-orbit filling circulation dispenser pump, it is characterized in that: described impeller (13) is based on centrifugal design, adopt quaterfoil structural design, belong to half-opened impeller, the lift change under 0 ~ 2 times of design discharge of its constant voltage performance guarantee is no more than 10%, ensures the constant voltage of lift.
5. the space-orbit filling circulation of the one according to claim 1 or 4 dispenser pump, it is characterized in that: described impeller (13) dorsal part clip (12) remains on 0.3 ~ 0.5mm with the difference of permanent magnet (7) height, make pump dorsal part have back blade function, effectively offset the axial force of impeller (13); Impeller (13) vane tip and pump case (15) gap are 0.1mm ~ 0.4mm, reduce the leakage loss of circulation dispenser pump.
6. one according to claim 1 space-orbit filling circulation dispenser pump, is characterized in that: described permanent magnet (7) adopts sector structural design, and sector angle A is 45 ° ~ 55 ° through ground experiment checking span.
7. one according to claim 1 space-orbit filling circulation dispenser pump, is characterized in that: described permanent magnet clutch (6) and impeller (13) side permanent magnet (7) spacing are 2 ~ 4mm.
8. one according to claim 1 space-orbit filling circulation dispenser pump, is characterized in that: the quality of described circulation dispenser pump is less than or equal to 0.5kg; There is not any Sealing and sealing configuration in circulation dispenser pump, the overall zero leakage adopting welding pattern to realize circulation dispenser pump.
9. one according to claim 1 space-orbit filling circulation dispenser pump, is characterized in that: described bearing (14) adopts ceramic bearing, increases the wear-resisting property of bearing, improves bearing working life.
10. one according to claim 1 space-orbit filling circulation dispenser pump, it is characterized in that: in the middle of described impeller (13), open 1.05 times that Circularhole diameter is this place's shaft diameter, make fluid enter in bearing by this gap, realize the selflubricating of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484935.6A CN105179256B (en) | 2015-08-07 | 2015-08-07 | A kind of space-orbit filling circulation dispenser pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484935.6A CN105179256B (en) | 2015-08-07 | 2015-08-07 | A kind of space-orbit filling circulation dispenser pump |
Publications (2)
| Publication Number | Publication Date |
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| CN105179256A true CN105179256A (en) | 2015-12-23 |
| CN105179256B CN105179256B (en) | 2017-12-19 |
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| CN201510484935.6A Active CN105179256B (en) | 2015-08-07 | 2015-08-07 | A kind of space-orbit filling circulation dispenser pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593885A (en) * | 2016-11-22 | 2017-04-26 | 北京控制工程研究所 | Space ultralow specific speed centrifugal pump hydraulic model |
| CN108591049A (en) * | 2018-05-28 | 2018-09-28 | 歌思（天津）低温设备有限公司 | A kind of hand small flow LNG dispenser pumps of magnetism coupling type |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133692Y (en) * | 1992-04-17 | 1993-05-19 | 余尧根 | Magnetic chemical pump |
| US5803720A (en) * | 1993-04-28 | 1998-09-08 | Kyocera Corporation | Blood pump |
| US5863179A (en) * | 1993-06-25 | 1999-01-26 | Baxter International Inc. | Centrifugal blood pump |
| US6439845B1 (en) * | 2000-03-23 | 2002-08-27 | Kidney Replacement Services, P.C. | Blood pump |
| CN2736566Y (en) * | 2004-05-17 | 2005-10-26 | 江苏大学 | Novel rotor for magnetically driven pump |
| CN104153999A (en) * | 2014-07-29 | 2014-11-19 | 江苏大学 | Motor-pump-integrated micro high-speed magnetic pump |
| CN204003610U (en) * | 2013-12-27 | 2014-12-10 | 株式会社易威奇 | Pump fore shell |
| CN104373357A (en) * | 2014-11-14 | 2015-02-25 | 中国科学院苏州生物医学工程技术研究所 | Medical magnetic drive centrifugal pump based on logarithmic spiral impeller and sliding bearings |
-
2015
- 2015-08-07 CN CN201510484935.6A patent/CN105179256B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133692Y (en) * | 1992-04-17 | 1993-05-19 | 余尧根 | Magnetic chemical pump |
| US5803720A (en) * | 1993-04-28 | 1998-09-08 | Kyocera Corporation | Blood pump |
| US5863179A (en) * | 1993-06-25 | 1999-01-26 | Baxter International Inc. | Centrifugal blood pump |
| US6439845B1 (en) * | 2000-03-23 | 2002-08-27 | Kidney Replacement Services, P.C. | Blood pump |
| CN2736566Y (en) * | 2004-05-17 | 2005-10-26 | 江苏大学 | Novel rotor for magnetically driven pump |
| CN204003610U (en) * | 2013-12-27 | 2014-12-10 | 株式会社易威奇 | Pump fore shell |
| CN104153999A (en) * | 2014-07-29 | 2014-11-19 | 江苏大学 | Motor-pump-integrated micro high-speed magnetic pump |
| CN104373357A (en) * | 2014-11-14 | 2015-02-25 | 中国科学院苏州生物医学工程技术研究所 | Medical magnetic drive centrifugal pump based on logarithmic spiral impeller and sliding bearings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593885A (en) * | 2016-11-22 | 2017-04-26 | 北京控制工程研究所 | Space ultralow specific speed centrifugal pump hydraulic model |
| CN106593885B (en) * | 2016-11-22 | 2019-05-24 | 北京控制工程研究所 | A kind of space super-low specific speed centrifugal pump hydraulic model |
| CN108591049A (en) * | 2018-05-28 | 2018-09-28 | 歌思（天津）低温设备有限公司 | A kind of hand small flow LNG dispenser pumps of magnetism coupling type |
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| Publication number | Publication date |
|---|---|
| CN105179256B (en) | 2017-12-19 |
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