CN1144954C - Magnetically driven pump - Google Patents
Magnetically driven pump Download PDFInfo
- Publication number
- CN1144954C CN1144954C CNB011111828A CN01111182A CN1144954C CN 1144954 C CN1144954 C CN 1144954C CN B011111828 A CNB011111828 A CN B011111828A CN 01111182 A CN01111182 A CN 01111182A CN 1144954 C CN1144954 C CN 1144954C
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- CN
- China
- Prior art keywords
- permanent magnet
- magnetic force
- impeller
- pump
- front cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a novel magnetic force driven pump which uses an axial magnetic force dragging mode to replace a radical direction magnetic force dragging mode of a traditional magnetic force driving pump. Because a cup-shaped seal sleeve of the traditional magnetic force driving pump is changed to a tabular shape, an axial force detection sensor of a blade wheel rotor and an axial force balancing regulating device are added, and thus, an inner flow channel of a pump body is unobstructed. The working condition of a bearing is greatly improved, and balls and phenolic laminated sheet bearings made of cloth are used for replacing silicon carbide or corundum ceramic bearings with high price. By the structure, the pump body has the magnetic filter function, and can be added with a filter screen for filtering ordinary impurities. The present invention has the advantages of simple structural form of the pump body, injection molding production, low cost and easy generalization.
Description
Technical field
A kind of magnetic force driving pump is the improvement to existing magnetic force driving pump magnetic force driving style.Because of its nothing leaks outside, be specially adapted to carry in the pipeline of poisonous, harmful fluid.
Background technique
Existing magnetic force driving pump (" external magnetic force driving pump development Overview ", pump technology, 1993.3, Jiang Dahui, Shenyang water pump research institute) all adopt the radial magnetic force driving style, promptly by the annular permanent magnet coaxial line of two groups of different-diameters of radial magnetizing be sleeved on together.Usually, organize permanent magnet outward and motor shaft is connected, interior group permanent magnet and water pump vane axle are connected, and separate with the cup-shaped separation sleeve between two groups of permanent magnets.Because dragging of radial magnetic force, but impeller rotates in the fluid chamber of another complete closed.The advantage of this structure is: can accomplish does not in theory have additional axial magnetic on motor shaft and the impeller shaft.But shortcoming is: the cup-shaped separation sleeve and on impeller shaft bearing working condition (as cooling) relatively poor; Inside and outside annular magnet should have higher concentricity; The bearing wear meeting causes the consequence of vicious circle, must adopt silicon carbide (SiC) or corundum ceramic etc.Cause pump housing inner structure complexity, machining accuracy and part material are had relatively high expectations, cost generally is more than the several times of conventional pump.
Summary of the invention
The objective of the invention is to disclose a kind of magnetic force driving pump, it adopts the axial magnetic driving style, promptly installs relatively with suitable axial clearance by the permanent magnet of two groups of axial chargings, places flat dividing plate at gap location.When one group of permanent magnet rotation of driven by motor, another group permanent magnet that is connected with impeller is dragged.Its significant disadvantages of this driving style is to exist the additional axial force that is directly proportional with drawing torque.Its effect is destructive.As not adding balance and thinking, this kind of drive is very easy is abandoned.But problem is that this additional axial force can balance on the other hand, and the advantage that this kind of drive is brought is that two chambeies isolate convenient (flat isolation), simple in structure, easy to process, the bearing working condition is good, needn't use expensive silicon carbide or corundum ceramic bearing, significantly reduce cost.Meanwhile can on equipment, install the axial force detecting sensor additional, in time align axial thrust balancing devices and bearing play, can greatly improve the service life of equipment.
Formation of the present invention comprises motor (1), the pump housing (2), butt plate (3), dividing plate (4), front cover (5), pallet (6), A group permanent magnet (7), B group permanent magnet (8), impeller (9), impeller shaft (10), bearing support (11) (each one of front and back), ball (12) (each one of front and back), Balance disc (13), permanent magnet (14), adjusting screw (15), load cell (16) (band lead-in wire), pad (17), filter screen (18).
A involved in the present invention group permanent magnet (7) and B group permanent magnet (8) annular solid that to be each lean on self magnetic force adhesive to become by the some blocks of measure-alike fan-shaped magnet steel that magnetize vertically, wherein A group permanent magnet (7) is bonded on the pallet (6) and is packed on the spindle nose of motor (1), B group permanent magnet (8) is bonded in the back side of impeller (9), and two groups of permanent magnets separate by the dividing plate (4) on the butt plate (3).Butt plate (3) is the link between the motor (1) and the pump housing (2).Butt plate (3) can adopt metal or engineering plastics to manufacture.The selected material of dividing plate (4) must be non magnetic, no eddy current effect, so butt plate (3) and dividing plate (4) also can be one.The two ends of the impeller shaft (10) that installs along impeller (9) axis embed ball (12) and are against along on two bearing supports (11) of motor (1) and the installation of the pump housing (2) axis.The material of bearing support (11) can adopt bearing shell cloth matter phenolic laminated sheet.The bearing support (11) of impeller (9) suction side is plugged on the adjusting screw (15) through load cell (16).The latter screws in along the pump housing (2) axis in the screw of front cover (5), in order to regulate the gap between ball (12) and bearing support (11).The front end of impeller (9) can install the Balance disc (13) of two kinds of unlike materials (ferromagnet of no eddy current effect or the permanent magnet of axial charging).The outside that the annular permanent magnet of axial charging (14) is spun on adjusting screw (15) by pallet (6) and pad (17) with its bonding.The thickness effect permanent magnet (14) of pad (17) and the distance between Balance disc (13), and then change the size of suction between the two or repulsion.It is zero that the optimum thickness of pad (17) should make the axial force on the vane rotor.This value can demonstrate by load cell (16) and instrument.During the water pump design, should calculate the axial force of vane rotor, change the direction (suction or repulsion) of active force between it and permanent magnet (14) by the material of selecting Balance disc (13), and adjust its size, and then guarantee that it is zero that impeller shaft (10) is gone up suffered making a concerted effort (gravity of rotor, impeller shaft suction or the repulsion etc. between pressure difference, Balance disc (13) and the permanent magnet (14) of both sides when comprising suction between two groups of permanent magnets of A, B, water pump vertically-arranged) by the thickness of pad (17).Ferromagnetism impurity (as iron rust) in permanent magnet (14) and the adsorbable fluid of Balance disc (13) while plays magnetic filter.Cylindric filter screen (18) is packed in the inboard of front cover (5), and the other end is against on the dividing plate in the pump housing (2) chamber.Regularly pull down front cover (5) and can remove the inside and outside various impurity of net.
Description of drawings
Accompanying drawing magnetic force driving pump structural representation
Embodiment
Provide enforcement preferred version of the present invention below.
The present invention changes into the radial magnetic force driving style of existing magnetic force driving pump the axial magnetic driving style and causes integrally-built variation.As shown in the figure, the motor (1) and the pump housing (2) fuse by butt plate (3).A group permanent magnet (7) and B group permanent magnet (8) annular solid that to be each lean on self magnetic force adhesive to become by the some blocks of measure-alike fan-shaped magnet steel that magnetize vertically.Wherein A group permanent magnet (7) is bonded on the pallet (6) and is packed on the spindle nose of motor (1), B group permanent magnet (8) is bonded in the back side of impeller (9), and the dividing plate (4) that both are inlayed on the butt plate (3) separates (if the material of butt plate (3) is engineering plastics then can processes with dividing plate (4) one).The two ends of the impeller shaft (10) that installs along impeller (9) axis embed ball (12) and are against along on two bearing supports (11) of motor (1) and the installation of the pump housing (2) axis.One of them bearing support (11) is inserted on the dividing plate (4), and another bearing support (11) is plugged on through load cell (16) and screws in the axis screw of front cover (5) after adjusting screw (15) goes up.Close front cover (5) side of impeller shaft (10) installs Balance disc (13), and the single permanent magnet of the ring-type of axial charging (14) is spun on the outside of adjusting screw (15) by the pallet (6) of zone axis screw.Can add the different pad of thickness (17) between permanent magnet (14) and the front cover (5).Can install cylindric filter screen (18) additional between front cover (5) and the pump housing (2) internal partition.
The pump housing in the accompanying drawing (2) structure is that fluid inlet and outlet is on same axis.This kind axial magnetic drags principle and also can be used in the structure of fluid inlet and outlet axis normal.Vertical mounting type in the accompanying drawing also can make horizontal mounting type into.As calculated, need not to install additional Balance disc (13) and permanent magnet (14) and just can accomplish that it also is possible that the vane rotor axial force approaches zero.
Claims (3)
1. magnetic force driving pump, it is characterized in that having installed additional bearing support (11) and ball (12), Balance disc (13), annular permanent magnet (14), adjusting screw (15), load cell (16), pad (17) and cylindric filter screen (18) except that comprising motor (1), the pump housing (2), butt plate (3), dividing plate (4), pallet (6), A group permanent magnet (7), B group permanent magnet (8), impeller (9), impeller shaft (10); The impeller shaft (10) that is installed in impeller (9) axis hole is against respectively on the dividing plate (4) of the pump housing (2) both sides and the bearing support (11) that front cover (5) medial axis is located by the ball (12) of axle head; Wherein the bearing support (11) at place, front cover (5) medial axis is inserted in the hole of adjusting screw (15) herein, puts load cell (16) at the bottom of the hole, and draw in the hole of its lead on adjusting screw (15); Be used for the inside and outside both sides that balance impeller (9) balance of axial force dish (13) and annular permanent magnet (14) coaxial line ground are positioned at front cover (5), wherein Balance disc (13) is packed in impeller shaft (10) end, go up the pad (17) of suit suitable thickness in adjusting screw (15) after, will be stained with annular permanent magnet (14) and tapped pallet and be screwed on the adjusting screw (15); Cylinder shape filter screen (18) is installed between the dividing plate in front cover (5) and the pump housing (2).
2. magnetic force driving pump as claimed in claim 1, it is characterized in that the axial force that acts on impeller (9) rotor can detect through load cell (16), and with the minimum extremely of pad (17) regulating thickness between the annular permanent magnet (14) of the material of Balance disc (13) and front cover (5) and axial charging.
3. magnetic force driving pump as claimed in claim 1 is characterized in that ball (12) and bearing support (11) adopt the steel ball and the bearing shell cloth matter phenolic laminated sheet of common radial bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011111828A CN1144954C (en) | 2001-04-09 | 2001-04-09 | Magnetically driven pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011111828A CN1144954C (en) | 2001-04-09 | 2001-04-09 | Magnetically driven pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1316599A CN1316599A (en) | 2001-10-10 |
| CN1144954C true CN1144954C (en) | 2004-04-07 |
Family
ID=4658997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011111828A Expired - Fee Related CN1144954C (en) | 2001-04-09 | 2001-04-09 | Magnetically driven pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144954C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455815C (en) * | 2005-01-30 | 2009-01-28 | 陆雄 | Dynamic regulation method of axial force in multi-stage centrifugal pump with symmetrically configured vane wheel |
| CN101900136A (en) * | 2010-09-04 | 2010-12-01 | 鲍德平 | Rotary anti-blocking filter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455824C (en) * | 2005-01-30 | 2009-01-28 | 陆雄 | Dynamic regulation method of axial force in multistage centrifugal pump with balance drum to balance axial force |
| CN101319678B (en) * | 2007-06-06 | 2013-01-09 | 庄和金 | Exhaustible centrifugal water pump |
| CN101943178B (en) * | 2010-09-13 | 2012-03-28 | 广州广一泵业有限公司 | Axial force balancing device of multi-stage pipeline pump |
| CN102418688B (en) * | 2011-12-23 | 2015-07-08 | 芜湖博耐尔汽车电气系统有限公司 | Dynamic balance correction tool for rotatable part of electric compressor |
| 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 |
| CN107084156A (en) * | 2017-06-14 | 2017-08-22 | 湖南山水泵业有限公司 | Centrifugal pump and its balance control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2236030Y (en) * | 1995-12-21 | 1996-09-25 | 王晚霓 | Magnetic-arrested magnetic pipline pump |
| CN1151480A (en) * | 1995-11-28 | 1997-06-11 | 王晚霓 | Magnetic driving gear for pump |
| US6056520A (en) * | 1995-12-04 | 2000-05-02 | Chemical Seal & Packing, Inc. | Magnetic drive pump having encased magnets for pumping very low temperature fluids |
-
2001
- 2001-04-09 CN CNB011111828A patent/CN1144954C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151480A (en) * | 1995-11-28 | 1997-06-11 | 王晚霓 | Magnetic driving gear for pump |
| US6056520A (en) * | 1995-12-04 | 2000-05-02 | Chemical Seal & Packing, Inc. | Magnetic drive pump having encased magnets for pumping very low temperature fluids |
| CN2236030Y (en) * | 1995-12-21 | 1996-09-25 | 王晚霓 | Magnetic-arrested magnetic pipline pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455815C (en) * | 2005-01-30 | 2009-01-28 | 陆雄 | Dynamic regulation method of axial force in multi-stage centrifugal pump with symmetrically configured vane wheel |
| CN101900136A (en) * | 2010-09-04 | 2010-12-01 | 鲍德平 | Rotary anti-blocking filter |
| CN101900136B (en) * | 2010-09-04 | 2012-08-22 | 东北石油大学 | Rotary anti-blocking filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1316599A (en) | 2001-10-10 |
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