CN201934324U - Permanent magnetic levitation axial electric pump - Google Patents
Permanent magnetic levitation axial electric pump Download PDFInfo
- Publication number
- CN201934324U CN201934324U CN2011200183343U CN201120018334U CN201934324U CN 201934324 U CN201934324 U CN 201934324U CN 2011200183343 U CN2011200183343 U CN 2011200183343U CN 201120018334 U CN201120018334 U CN 201120018334U CN 201934324 U CN201934324 U CN 201934324U
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Abstract
A permanent magnetic levitation axial electric pump belongs to the technical field of pumps and comprises permanent magnet bearings, an axial motor and a pump. The pump and the axial motor are mounted and connected integrally; a mechanical seal device is arranged between the axial motor and the pump; each permanent magnet bearing is provided with a fixed magnetic ring and a movable magnetic ring which are placed in an offset manner; the movable magnetic rings are mounted on a rotor shaft; the fixed magnetic rings are mounted on an outer casing of the axial motor; the axial motor includes stators, the rotor shaft, a rotor disk and end caps; the rotor disk is mounted in the middle of the rotor shaft; shallow slots are evenly processed on two lateral surfaces of the rotor disk; the stators are symmetrically arranged on two sides of the rotor disk; six salient poles with sector sections are evenly distributed on each stator; coil windings are wound on the salient poles; and roller thrust bearings are arranged at two ends of the rotor shaft and clamped on the end caps at two ends respectively. The permanent magnetic levitation axial electric pump is reasonable, compact and simple in structure, easy in production and manufacture and fine in sealing performance, torque loss is eliminated, motor power and pump efficiency are improved, and control and adjustment are facilitated.
Description
Technical field
The utility model relates to a kind of pump, and especially the input shaft of the output shaft of motor and pump is the electronic pump structure of magnetic suspension of same axle, belongs to the pump technical field.
Background technique
Pump has many structural types, is extensive use of in a plurality of fields such as industrial or agricultural, and generally speaking, motor needs to adopt coupling, gear transmission or belt transmission etc. to be connected as between power source and the pump.The reasons such as distortion that produce during owing to the manufacturing of each component, installation or work can't guarantee that motor shaft and pump shaft are coaxial fully, can produce wearing and tearing in the high speed rotating process, vibrate, and make system inefficiency occur, job insecurity, problem such as noise is big.For fear of these problems occurring, the integrated electric pump that motor and pump are formed has appearred.Motor-drive pump has compact structure, volume reduces, weight saving and low noise advantages, and avoided the frictional loss, vibration and the noise that produce because of disalignment, improved working efficiency.But existing motor-drive pump can not be eliminated fully because of phenomenons such as fricative power loss, component wear and heatings, and is difficult to reach and runs up.
The model utility content
The purpose of this utility model is based on magnetic levitation technology and motor technology, in state natural sciences fund (numbering: 50975249) under the subsidy, propose a kind of novel magnetic suspension motor-drive pump.The magnetic suspension motor-drive pump is except that the advantage with common electric pump, can also eliminate friction and wear because of support rotor, need not lubricate, pollution-free, long service life, can improve the rotating speed and the output power of pump, have simple and compact for structure, low in energy consumption, the efficient height, noise is low, and is energy-conservation, be convenient to control and reliability advantages of higher, have broad application prospects.
The purpose of this utility model is achieved through the following technical solutions, the axial motor-drive pump of permanent magnetism magnetic suspension, comprise Permanent-magnet bearing, axial direction electric machine and pump, pump is connected in aggregates with the axial direction electric machine installation, it is characterized in that being provided with mechanical seal device between axial direction electric machine and the pump, described Permanent-magnet bearing is provided with magnetostatic ring and moving magnet ring, and magnetostatic ring and the biasing of moving magnet ring are placed, moving magnet ring is installed on the rotor shaft, and magnetostatic ring is installed on the shell of axial direction electric machine group; Described axial direction electric machine comprises stator, rotor shaft, rotor discs, end cap, rotor discs is installed in the middle of the rotor shaft, evenly be processed with shallow slot on the rotor discs both side surface, the rotor discs bilateral symmetry is provided with the installation stator, being evenly distributed with six cross sections on the stator is fan-shaped salient pole, be wound with coil winding above the salient pole, the rotor shaft two ends are provided with roller thrust block, and roller thrust block is stuck on the end cap of two ends.
Described pump comprises the pump housing, impeller, lining lid and pump cover, the pump housing is split type helical, impeller is installed by key and is connected the rotor shaft end, the pump cover central position is provided with water intake, the top of the pump housing is provided with water outlet, the pump housing is connected with bolt with the shell of axial direction electric machine, and pump housing bottom is provided with the water channel of groove and through hole formation, and described impeller is a receded disk impeller.
Described mechanical seal device is made up of roundel, baffle plate, sleeve, roundel is fitted on the rotor shaft by sleeve by impeller, baffle plate is arranged between roundel and the roller thrust block, roundel is a concave surface towards the one side of sleeve, is provided with micro-gap between roundel and the pump housing and communicates with the water channel of pump housing bottom.
Described moving magnet ring one end is provided with the nut of adjusting moving magnet ring and the relative offset position of magnetostatic ring.
Be provided with pad between described magnetostatic ring and the shell.
Described stator and shell are structure as a whole.
The utility model compactness rational in infrastructure is simple, manufactures easily, and usability is good, and is low in energy consumption, the efficient height, and noise is low, and is energy-conservation.Adopt two pairs of biasing Permanent-magnet bearings axially and the foundation of radial equilibrium as rotor, and design disc type axial direction electric machine is as the power source of pump, compared to radial motor, the stator coil of axial direction electric machine is under the effect of electromagnetic induction, not only rotor is produced torque, also it is produced the effect of axial force, owing to adopted two stators, make it to produce the opposite axial force of a pair of direction in the rotor disk both sides, motor shaft can more stably be rotated in the axial direction, can not influence the working stability of pump because of moving axially of rotor shaft.Simultaneously, design the seal arrangement of a kind of disc type mechanical seal as motor-drive pump, adopt the reeded roundel of one side in the sealing, when in the pump have the slit of water by motor and pump to enter the time, roundel is high speed rotating under the drive of rotor shaft, the water that enters touches the concave surface of roundel, can be thrown on the pump housing wall under the action of the centrifugal, flow into then in the water channel of the pump housing and end cap formation, flow back into water inlet, between roundel and bearing baffle plate is housed through the sluice, can prevent that sealing enters motor, the corrosion bearing has not only guaranteed the machine operation Security, has also guaranteed the suspension fully of rotor.The sealing apparatus structure is simple, compact, and volume is little, and is in light weight, convenient processing and manufacture.
The radial support bearing of rotor shaft adopts two pairs of Permanent-magnet bearings, these two pairs of Permanent-magnet bearings are installed in the two ends of motor shaft respectively, magnetostatic ring is an outer magnetic ring, fix by end cap, moving magnet ring is an internal magnetic ring, be fixed on the rotor shaft with nut, two pairs of Permanent-magnet bearings all adopt biasing to place, when producing radial support power, also rotor is produced the effect of axial force, because the axial force direction of two pairs of Permanent-magnet bearing generations is opposite, so under the interaction of axial force, rotor can keep longitudinal balance, makes the rotor axial position keep stable, has guaranteed that motor can realize high-speed and powerful requirement simultaneously.And Permanent-magnet bearing does not need to lubricate, and can directly not contact the phenomenon that rotor produces friction and heating yet, has eliminated torque loss, improves power of motor, is convenient to control and adjust.In addition, the utility model adopts the disc type axial direction electric machine, after the energising of the winding on the stator, rotor disk is under the effect of electromagnetic induction, be subjected to the effect of the power of both sides stator generation, not only produce torque, also can keep balance in the axial direction because of the effect of stator shaft orientation power.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a stator structure schematic representation of the present utility model;
Fig. 3 is a rotor shaft structural representation of the present utility model;
Among the figure: 1 housing, 2 stators, 3 rotor discs, 4 rotor shafts, 5 housings, 6 moving magnet rings, 7 pump housings, 8 roller thrust blocks, 9 roundels, 10 sleeves, 11 impellers, 12 baffle plates, 13 lining lids, 14 water channels, 15 pump covers, 16 end caps, 17 magnetostatic rings, 18 stators, 19 housings, 20 moving magnet rings, 21 supports, 22 end caps, 23 roller thrust blocks, 24 sleeves, 25 magnetostatic rings.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the axial motor-drive pump of permanent magnetism magnetic suspension mainly is made of installations such as Permanent-magnet bearing, axial direction electric machine, pump, mechanical seal device.The Permanent-magnet bearing group plays a supportive role, it is made up of two pairs of Permanent-magnet bearings and setscrew nut, the magnetostatic ring 25 of Permanent-magnet bearing and magnetostatic ring 17 are installed in respectively in housing 1 and the housing 5, magnetostatic ring 25 is by end cap 22 chuckings, magnetostatic ring 17 is tightened by end cap 16, and adjusts the position of magnetostatic ring respectively by the spacer thickness of adjusting end cap 22,16 places. Moving magnet ring 20,6 are fastened on the rotor shaft 4 by nut respectively, respectively with magnetostatic ring 25,17 are biasing places, rotating nut can be adjusted moving magnet ring 20,6 position, the left end of magnetostatic ring 25 and moving magnet ring 20 is the N utmost point, right-hand member is the S utmost point, the left end of magnetostatic ring 17 and moving magnet ring 6 is the S utmost point, right-hand member is the N utmost point, because two pairs of Permanent-magnet bearings are all setovered, so can produce the effect of axial force to rotor, the axial force at two ends is cancelled out each other, can make on the rotor axial direction more stable, if it is excessive to detect the rotor axial displacement amount, can suitably adjust the nut at two ends, change moving magnet ring 10,6 position, or increase and decrease end cap 22, the thickness of 16 place's pads, adjust magnetostatic ring 25,17 position to reach the purpose of change to the responsive to axial force of rotor, makes rotor displacement get back to the position of requirement.
The effect of axial direction electric machine is the output torque, and it is made up of stator 2, stator 18, rotor shaft 4, rotor discs 3.The rotor discs of axial direction electric machine is installed in the middle of the stator, drives rotor discs during stator winding electrifying and drives the rotor shaft rotation, and keep it axially stable.Wherein, rotor shaft 4 is installed in the neutral position of motor-drive pump, and the centre of rotor shaft 4 connects with key and is fixed with a rotor discs 3 with nut, evenly is processed with the shallow slot of some on rotor discs 3 both side surface.Rotor discs 3 bilateral symmetry are equipped with stator 2 and stator 18.Stator 2 is designed to integral body with housing 1, and stator 18 is designed to integral body with housing 5, and being processed with six cross sections on the stator 2,18 is fan-shaped salient pole, and six salient poles evenly distribute, and are wound with coil winding above.When stator coil is switched on, under the electromagnetic induction effect, produce torque, make rotor discs 3 drive rotor shaft 4 high speed rotating, rotor shaft 4 ends are equipped with impeller 11, directly externally output torque, impeller 11 rotations, pump is started working.
Pump by the pump housing 7, impeller 11, lining cover 13, pump cover 15 forms.Pump adopts the split type helical pump housing, and impeller is selected receded disk impeller for use, and water intake is in pump cover 15 central positions, and water outlet is in the pump top position.The pump housing 7 is connected with bolt with motor, the through hole that the lower end has groove and processes bottom at groove.Impeller 11 is installed in rotor shaft 4 ends, connects with key, and lining cover 13 and is installed in the pump cover 15, and lining lid below has groove and through hole equally, the water channel 14 that communicates with groove on the pump housing 7 and hole formation.Pump cover 15 chucking linings cover 13, and link together with the bolt and the pump housing 7, and pump cover 15 and lining cover 13 installs sealing gasket, prevents to leak.
The pump housing 7 links together with end cap 16 usefulness bolts, and sealing gasket is installed between the two, prevents the liquid leakage.Roller thrust block 8 is housed in the end cap 16, and roller thrust block 8 is enclosed within on the rotor shaft 4, and the pump housing 7 is with roller thrust block 8 chuckings.Roller thrust block 23 is installed in the end cap 22, and with sleeve 24 location, end cap 22 is with its chucking.The two ends that roller thrust block 23,8 is enclosed within rotor shaft 4 are respectively play a part spacing, for prevent that motor-drive pump from breaking down or when shutting down rotor shaft 4 meet other parts, cause parts damages or scrap.Roller thrust block 23,8 not only carries out radially spacing to rotor shaft 4; also it is played the effect of axial limiting; ring is staggered relatively in two roller thrust blocks; and axially and directly upwards keeping small gap between the rotor shaft 4; when rotor because of shutting down or fault displacement when excessive, rotor contacts with bearing, bearing is along with rotor rotation; rotor can not run into stator or other parts like this, prevents that the interior outer magnetic ring of Permanent-magnet bearing from bumping against yet.
Between the pump housing 7 and roller thrust block 8 mechanical seal device is installed, mechanical seal device is made up of roundel 9, baffle plate 12, sleeve 10, water channel 14.One end of sleeve 10 is pressed in roundel 9 on the rotor shaft 4, and the other end of sleeve 10 is positioned on impeller 11 rear surfaces, by impeller 11 chuckings.Leave micro-gap between the roundel 9 and the pump housing 7, when rotor shaft 4 high speed rotating, roundel 9 is high speed rotating thereupon also, design surface is concave surfaces to the one side of sleeve 10, the liquid that the slit from 7 of sleeve 10 and the pump housings can be entered motor when rotating is thrown on the pump housing 7 surfaces, flow into then in the water channel 14 of below, the water channel that covers below 13 by lining flow back into the water inlet, can avoid liquid to enter motor internal like this.In order to seal better, between roundel 9 and roller thrust block 8,, enter bearing with the liquid that prevents to splash with circular baffle plate 12 of the pump housing 7 chuckings, cause damage of bearings.The design's mechanical seal structure is simple, and sealing effect is good, because roundel 9 has replaced the mechanical seal of seal ring formula, can eliminate the friction between seal ring and the rotor fully, has improved the delivery efficiency of torque, floatation electric motor is become fully suspend.
The utility model motor-drive pump adopts the passive magnetic suspension mode of Permanent-magnet bearing on the basis of existing magnetic suspension motor-drive pump, simple in structure, is convenient to control, and adopts the axial direction electric machine mode, and axial dimension is reduced, and conveniently is applied to the less occasion of axial space.In addition, motor-drive pump of the present invention has designed a kind of touchless disc type mechanical seal device, and the sealing device is simple and practical, and volume is little, has alleviated the weight and volume of whole motor-drive pump.Motor-drive pump provided by the invention is a kind ofly many use motor-drive pump, and volume is little, and is simple in structure, compact, the specific power height, and the control accuracy height is installed, maintenance makes things convenient for, and good reliability can be used for multiple workplace.
Claims (6)
1. the axial motor-drive pump of permanent magnetism magnetic suspension, comprise Permanent-magnet bearing, axial direction electric machine and pump, pump is connected in aggregates with the axial direction electric machine installation, it is characterized in that being provided with mechanical seal device between axial direction electric machine and the pump, described Permanent-magnet bearing is provided with magnetostatic ring and moving magnet ring, magnetostatic ring and the biasing of moving magnet ring are placed, and moving magnet ring is installed on the rotor shaft, and magnetostatic ring is installed on the shell of axial direction electric machine group; Described axial direction electric machine comprises stator, rotor shaft, rotor discs, end cap, rotor discs is installed in the middle of the rotor shaft, evenly be processed with shallow slot on the rotor discs both side surface, the rotor discs bilateral symmetry is provided with the installation stator, being evenly distributed with six cross sections on the stator is fan-shaped salient pole, be wound with coil winding above the salient pole, the rotor shaft two ends are provided with roller thrust block, and roller thrust block is stuck on the end cap of two ends.
2. the axial motor-drive pump of permanent magnetism magnetic suspension according to claim 1, it is characterized in that described pump comprises the pump housing, impeller, lining lid and pump cover, the pump housing is split type helical, impeller is installed by key and is connected the rotor shaft end, and the pump cover central position is provided with water intake, and the top of the pump housing is provided with water outlet, the pump housing is connected with bolt with the shell of axial direction electric machine, pump housing bottom is provided with the water channel of groove and through hole formation, and water channel communicates with water intake, and described impeller is a receded disk impeller.
3. the axial motor-drive pump of permanent magnetism magnetic suspension according to claim 1, it is characterized in that described mechanical seal device is made up of roundel, baffle plate, sleeve, roundel is fitted on the rotor shaft by sleeve by impeller, baffle plate is arranged between roundel and the roller thrust block, roundel is a concave surface towards the one side of sleeve, is provided with micro-gap between roundel and the pump housing and communicates with the water channel of pump housing bottom.
4. the axial motor-drive pump of permanent magnetism magnetic suspension according to claim 1 is characterized in that described moving magnet ring one end is provided with the nut of adjusting moving magnet ring and the relative offset position of magnetostatic ring.
5. the axial motor-drive pump of permanent magnetism magnetic suspension according to claim 1 is characterized in that being provided with pad between described magnetostatic ring and the shell.
6. the axial motor-drive pump of permanent magnetism magnetic suspension according to claim 1 is characterized in that described stator and shell are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183343U CN201934324U (en) | 2011-01-20 | 2011-01-20 | Permanent magnetic levitation axial electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183343U CN201934324U (en) | 2011-01-20 | 2011-01-20 | Permanent magnetic levitation axial electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934324U true CN201934324U (en) | 2011-08-17 |
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ID=44445843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200183343U Expired - Fee Related CN201934324U (en) | 2011-01-20 | 2011-01-20 | Permanent magnetic levitation axial electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934324U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256230A (en) * | 2013-04-26 | 2013-08-21 | 胡道明 | Motor magnetic pump |
| CN104184249A (en) * | 2014-08-27 | 2014-12-03 | 天津中环电子照明科技有限公司 | Method for suspending motor rotor of micro motor mechanical pump |
| CN104405675A (en) * | 2014-11-17 | 2015-03-11 | 南京磁谷科技有限公司 | Pressurization system of magnetic suspension fan |
| CN105332927A (en) * | 2015-12-02 | 2016-02-17 | 湖南机电职业技术学院 | Integrated magnetic pump based on axial dual motor driving |
| CN107269601A (en) * | 2017-07-07 | 2017-10-20 | 中国煤炭科工集团太原研究院有限公司 | Cantilever rotor floating support device |
| CN107503947A (en) * | 2017-09-13 | 2017-12-22 | 中广核研究院有限公司 | Liquid metal conveying mechanical pump |
| CN107939978A (en) * | 2017-12-23 | 2018-04-20 | 广州市白云泵业集团有限公司 | Electromagnetic type active sealing structure |
| CN108023444A (en) * | 2018-01-20 | 2018-05-11 | 营口万意达智能装备科技有限公司 | A kind of servomotor |
| CN109058116A (en) * | 2018-09-10 | 2018-12-21 | 北京神州港俄机电设备有限公司 | A kind of electric oil pump |
| CN110985404A (en) * | 2019-11-29 | 2020-04-10 | 中国电子科技集团公司第十六研究所 | Magnetic suspension fluid micropump with straight-through inner flow channel |
| CN114001036A (en) * | 2021-10-25 | 2022-02-01 | 华中科技大学 | Miniature hydraulic suspension mechanical pump and assembly method thereof |
| CN117108519A (en) * | 2023-10-20 | 2023-11-24 | 威晟汽车科技(宁波)有限公司 | Electronic water pump |
-
2011
- 2011-01-20 CN CN2011200183343U patent/CN201934324U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256230B (en) * | 2013-04-26 | 2016-03-09 | 胡道明 | A kind of motor magnetic pump |
| CN103256230A (en) * | 2013-04-26 | 2013-08-21 | 胡道明 | Motor magnetic pump |
| CN104184249A (en) * | 2014-08-27 | 2014-12-03 | 天津中环电子照明科技有限公司 | Method for suspending motor rotor of micro motor mechanical pump |
| CN104405675A (en) * | 2014-11-17 | 2015-03-11 | 南京磁谷科技有限公司 | Pressurization system of magnetic suspension fan |
| CN104405675B (en) * | 2014-11-17 | 2016-08-24 | 南京磁谷科技有限公司 | The pressure charging system of magnetic suspension blower fan |
| CN105332927A (en) * | 2015-12-02 | 2016-02-17 | 湖南机电职业技术学院 | Integrated magnetic pump based on axial dual motor driving |
| CN107269601A (en) * | 2017-07-07 | 2017-10-20 | 中国煤炭科工集团太原研究院有限公司 | Cantilever rotor floating support device |
| CN107503947B (en) * | 2017-09-13 | 2024-06-11 | 中广核研究院有限公司 | Mechanical pump for conveying liquid metal |
| CN107503947A (en) * | 2017-09-13 | 2017-12-22 | 中广核研究院有限公司 | Liquid metal conveying mechanical pump |
| CN107939978A (en) * | 2017-12-23 | 2018-04-20 | 广州市白云泵业集团有限公司 | Electromagnetic type active sealing structure |
| CN107939978B (en) * | 2017-12-23 | 2023-11-21 | 广州市白云泵业集团有限公司 | Electromagnetic active sealing structure |
| CN108023444A (en) * | 2018-01-20 | 2018-05-11 | 营口万意达智能装备科技有限公司 | A kind of servomotor |
| CN109058116A (en) * | 2018-09-10 | 2018-12-21 | 北京神州港俄机电设备有限公司 | A kind of electric oil pump |
| CN109058116B (en) * | 2018-09-10 | 2023-12-22 | 北京神州港俄机电设备有限公司 | Electric oil pump |
| CN110985404A (en) * | 2019-11-29 | 2020-04-10 | 中国电子科技集团公司第十六研究所 | Magnetic suspension fluid micropump with straight-through inner flow channel |
| CN110985404B (en) * | 2019-11-29 | 2021-04-30 | 中国电子科技集团公司第十六研究所 | Magnetic suspension fluid micropump with straight-through inner flow channel |
| CN114001036A (en) * | 2021-10-25 | 2022-02-01 | 华中科技大学 | Miniature hydraulic suspension mechanical pump and assembly method thereof |
| CN117108519A (en) * | 2023-10-20 | 2023-11-24 | 威晟汽车科技(宁波)有限公司 | Electronic water pump |
| CN117108519B (en) * | 2023-10-20 | 2024-03-19 | 威晟汽车科技(宁波)有限公司 | Electronic water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20140120 |