CN105298863B - A kind of magnetic drive pump of resistance to dry grinding - Google Patents
A kind of magnetic drive pump of resistance to dry grinding Download PDFInfo
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- CN105298863B CN105298863B CN201510812301.9A CN201510812301A CN105298863B CN 105298863 B CN105298863 B CN 105298863B CN 201510812301 A CN201510812301 A CN 201510812301A CN 105298863 B CN105298863 B CN 105298863B
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- pump
- pump shaft
- axle sleeve
- shaft
- magnetic drive
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Abstract
The invention discloses a kind of magnetic drive pump of resistance to dry grinding,Its drip irrigation device is,Outer magnet rotor is arranged on motor shaft end,Separation sleeve is set between the impeller with interior magnet rotor and outer magnet rotor,The separation sleeve is sealedly and fixedly connected to form pump chamber with the pump housing,The motor is fixed on the pump housing by hitch,The pump shaft component includes axle sleeve,First pump shaft and the second pump shaft,The impeller is fixedly mounted on axle sleeve,The one end of first pump shaft is placed in the Single port of axle sleeve,The other end of first pump shaft is placed on the first supporting part of the pump housing,The one end of second pump shaft is placed in the another port of axle sleeve,The other end of second pump shaft is placed on the second supporting part of separation sleeve,The two-port of the axle sleeve is equipped with chamfering,First pump shaft and the second pump shaft are capitate face with the mating surface of the chamfering of axle sleeve,Effectively reduce frictional heat,So that magnetic drive pump can also run well under de- liquid operating mode,Will not cause to damage.
Description
Technical field
The present invention relates to a kind of magnetic drive pump, more specifically, it relates to a kind of magnetic drive pump of resistance to dry grinding.
Background technology
Magnetic drive pump is the unprssurized pump type that torque is contactlessly transmitted using permanent magnetic field to drive impeller to rotate.In stone
When the industries such as oil, chemical industry, medicine, nuclear industry convey inflammable, explosive, volatile, poisonous and precious liquid, it is desirable to the thing for being conveyed
Material can not be leaked, and traditional Mechanical Sealed Type pump needs to set complicated dynamic sealing, and it is difficult to ensure that in course of conveying
Absolutely not leakage, the characteristics of magnetic drive pump is due in structure, when the outer magnet rotor of motor-driven rotates, magnetic field through air-gap and
Magnetic conduction separation sleeve, the non contact transmission made synchronous rotary by driving rotor, realize power that drive is connected with impeller, will not move close
Envelope is converted into static seal.
Existing magnetic drive pump includes the pump housing, hitch, pump shaft, the impeller with interior magnet rotor, outer magnet rotor, separation sleeve,
Impeller is fixedly mounted on pump shaft, and the both ends of the pump shaft are separately mounted on the supporting part of the pump housing and separation sleeve, wherein institute
Outer magnet rotor is stated installed in the shaft end of motor, separation sleeve, separation sleeve and the pump housing are set between interior magnet rotor and outer magnet rotor
It is sealedly and fixedly connected to form pump chamber, the motor is fixed on the pump housing by hitch
Wherein pump shaft is used for supporting impeller revolving force and impeller and interior magnet rotor weight, but pump shaft is Jie by pump conveying
Matter is lubricated, cools down, and because impeller is fixedly mounted on pump shaft by axle sleeve, the end face of axle sleeve need to be contradicted in separation sleeve
Prevent that double swerve occurs during impeller operation on the end face of supporting part, if magnetic drive pump is also being transported under de- liquid operating mode
Turn, " dry run " can be produced, be commonly called as " dry grinding ", then the mating surface of pump shaft and axle sleeve, the end face of axle sleeve and the supporting part of separation sleeve
There is dry grinding in end face, and temperature steeply rises, and will cause device damage so that the serious consequence of blast, therefore every magnetic drive pump
Have to indicate the warning clause of " forbidding zero load " on nameplate.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of magnetic drive pump of resistance to dry grinding, effectively reduce
Frictional heat so that magnetic drive pump can also run well under de- liquid operating mode, will not cause to damage.
To achieve the above object, the invention provides following technical scheme：
A kind of magnetic drive pump of resistance to dry grinding, including the pump housing, hitch, pump shaft component, the impeller with interior magnet rotor, outer magnet rotor
And separation sleeve, outer magnet rotor installed in motor shaft end, isolate between the impeller with interior magnet rotor and outer magnet rotor by setting
Set, the separation sleeve is sealedly and fixedly connected to form pump chamber with the pump housing, and the motor is fixed on the pump housing by hitch, the pump
Shaft assembly includes axle sleeve, the first pump shaft and the second pump shaft, and the impeller is fixedly mounted on axle sleeve, one end of first pump shaft
Portion is placed in the Single port of axle sleeve, and the other end of the first pump shaft is placed on the first supporting part of the pump housing, second pump shaft
One end is placed in the another port of axle sleeve, and the other end of the second pump shaft is placed on the second supporting part of separation sleeve, the axle
The two-port of set is equipped with chamfering, and first pump shaft and the second pump shaft are capitate face with the mating surface of the chamfering of axle sleeve.
It is of the invention further to set：First pump shaft offers the first pump spindle center through hole, and second pump shaft is opened up
There is the second pump spindle center through hole；First supporting part is provided with the pump housing through hole being connected with the first pump spindle center through hole, described
Pump housing through hole is connected with the import of the pump housing；Second supporting part is provided with the separation sleeve being connected with the first pump spindle center through hole
Through hole, the madial wall of the separation sleeve forms cooling duct, the cooling duct and separation sleeve through hole phase with the lateral wall of impeller
Connection；The cooling duct is connected by the runner on impeller with the import of the pump housing.
It is of the invention further to set：First pump shaft stretches out and is provided with the first receiving portion, and the second pump shaft stretches out
The second receiving portion is provided with, first receiving portion and the second receiving portion are located in the two-port of axle sleeve respectively.
It is of the invention further to set：The angle of the chamfering is 22.5~60 degree.
It is of the invention further to set：The lateral wall of first pump shaft is provided with some the first guiding gutters, second pump
The lateral wall of axle is provided with some the second guiding gutters.
It is of the invention further to set：The cross section of first guiding gutter and the second guiding gutter is arc-shaped surface.
It is of the invention further to set：The quantity of the first guiding gutter and the second guiding gutter is three, and is uniformly circumferentially distributed.
It is of the invention further to set：The material of the axle sleeve, the first pump shaft and the second pump shaft is using silication ceramics.
Beneficial effect of the present invention：The impeller is fixedly mounted on axle sleeve, and is respectively provided with the two-port of its bottom bracket axle
One pump shaft and the second pump shaft, its bottom bracket axle can be around the first pump shaft and the relative rotation of the second pump shaft, the first pump shaft and the second pump shaft branch
Support impeller revolving force and impeller and interior magnet rotor weight, effectively reduce the contact surface of axle sleeve and the first pump shaft and the second pump shaft,
Simultaneously because the two-port of the axle sleeve is equipped with chamfering, the mating surface of first pump shaft and the second pump shaft and the chamfering of axle sleeve
The end face that capitate face is to replace conventional bushings directly contradicts the end face in separation sleeve, reduces the contact area of fastness,
The centering of the first pump shaft and the second pump shaft is improve again, while capitate face coordinates decreases axle sleeve to the first pump shaft and second
The pressure size in the mating surface of pump shaft, greatly reduces the frictional force between axle sleeve and the first pump shaft and the second pump shaft, so that
Effectively reduce and produce frictional heat so that when magnetic drive pump is evacuated or breaks liquid, can also run well, it is ensured that the normal peace of magnetic drive pump
Run entirely, improve the use reliability of pump.
Brief description of the drawings
Fig. 1 is a kind of structural representation of resistance to dry grinding magnetic drive pump of the present invention；
Fig. 2 is the structural representation of pump shaft component；
Fig. 3 is the sectional view of axle sleeve；
Fig. 4 is the top view of the second pump shaft；
Fig. 5 is the sectional view of separation sleeve through hole.
Description of reference numerals：1st, the pump housing；11st, the first supporting part；12nd, pump housing through hole；2nd, hitch；3rd, pump shaft component；31、
Axle sleeve；311st, chamfering；32nd, the first pump shaft；321st, the first pump spindle center through hole；322nd, the first receiving portion；323rd, the first guiding gutter；
33rd, the second pump shaft；331st, the second pump spindle center through hole；332nd, the second receiving portion；333rd, the second guiding gutter；34th, capitate face；4th, it is interior
Magnet rotor；5th, impeller；51st, runner；6th, outer magnet rotor；7th, separation sleeve；71st, the second supporting part；72nd, separation sleeve through hole；8th, it is electronic
Machine；9th, cooling duct
Specific embodiment
1 to Fig. 5 is described in further details to a kind of resistance to dry grinding magnetic drive pump of the invention referring to the drawings.
A kind of magnetic drive pump of resistance to dry grinding, including it is the pump housing 1, hitch 2, pump shaft component 3, the impeller 5 with interior magnet rotor 4, outer
Magnet rotor 6 and separation sleeve 7, outer magnet rotor 6 are arranged on the shaft end of motor 8, and motor 8 can drive outer magnet rotor 6 to rotate, carry
Separation sleeve 7 is set between the impeller 5 and outer magnet rotor 6 of interior magnet rotor 4, and the separation sleeve 7 is sealedly and fixedly connected to be formed with the pump housing 1
Pump chamber, the motor is fixed on the pump housing 1 by hitch 2,
Wherein described pump shaft component 3 includes axle sleeve 31, the first pump shaft 32 and the second pump shaft 33, and the impeller 5 is fixedly mounted
On axle sleeve 31, the one end of first pump shaft 32 is placed in the Single port of axle sleeve 31, and the other end of the first pump shaft 32 is put
In on the first supporting part 11 of the pump housing 1, the one end of second pump shaft 33 is placed in the another port of axle sleeve 31, the second pump shaft
33 the other end is placed on the second supporting part 71 of separation sleeve 7, and its bottom bracket axle 31 can be around the first pump shaft 32 and the second pump shaft 33
Relatively rotate, the first pump shaft 32 and the second pump shaft 33 support the revolving force of impeller 5 and impeller 5 and the weight of interior magnet rotor 4, effectively subtract
The contact surface of few pump shaft 32 of axle sleeve 31 and first and the second pump shaft 33.
The two-port of the axle sleeve 31 is equipped with chamfering 311, wherein the angle of the chamfering is 22.5~60 degree, described the
One pump shaft 32 and the second pump shaft 33 are capitate face 34 to replace conventional bushings 31 with the mating surface of the chamfering 311 of axle sleeve 31
End face directly contradicts the end face in separation sleeve 7, reduces the contact area of fastness, and the first pump shaft 32 and the second pump are improve again
The centering of axle 33, at the same capitate face 34 coordinate decrease 31 pairs of the first pump shafts 32 of axle sleeve and the second pump shaft 33 in the cooperation
The pressure size in face, greatly reduces the frictional force between the pump shaft 32 of axle sleeve 31 and first and the second pump shaft 33, so as to effectively reduce
Frictional heat is produced, wherein the angle of the chamfering 311 is 15~60 degree, the axle sleeve 31 is manufactured, and the pump of axle sleeve 31 and first
The pump shaft 33 of axle 32 and second is assembled.
In order to be able to outside the frictional heat discharge pump housing 1, the first pump spindle center through hole be offered in first pump shaft 32 in time
321, second pump shaft 33 offers the second pump spindle center through hole 331；First supporting part 11 be provided with the first pump shaft
The pump housing through hole 12 that heart through hole 321 is connected, the pump housing through hole 12 is connected with the import of the pump housing 1；Second supporting part
71 are provided with the separation sleeve through hole 72 being connected with the first pump spindle center through hole 321, madial wall and the impeller 5 of the separation sleeve 7
Lateral wall forms cooling duct 9, and the cooling duct 9 is connected with separation sleeve through hole 72；The cooling duct 9 passes through impeller 5
On runner 51 be connected with the import of the pump housing 1, when magnetic drive pump is evacuated or breaks liquid still in the running, air can be by pump
The import of body 1 is entered into pump chamber, then is entered on cooling duct 9 by the runner 51 on impeller 5, due to the cooling duct
9 are connected with separation sleeve through hole 72 so that air can sequentially pass through separation sleeve through hole 72, the second pump spindle center through hole 331 and
Outside the import discharge pump chamber of one pump spindle center through hole 321, pump housing through hole 12 and the pump housing 1, can effectively quickly generation frictional heat band
Walk, prevent magnetic force pump temperature too high so that pump leans on air circulation circulating cooling under without medium, reaches the purpose of resistance to dry grinding.
First pump shaft 32 stretches out and is provided with the first receiving portion 322, and the second pump shaft 33 stretches out and is provided with second and holds
By portion 332, the receiving portion 332 of first receiving portion 322 and second in the two-port of axle sleeve 31, is pacified for axle sleeve 31 respectively
On the first pump shaft 32 and the second pump shaft 33.
The lateral wall of first pump shaft 32 is provided with some the first guiding gutters 323, the lateral wall of second pump shaft 33
It is provided with some the second guiding gutters 333 so that the air of cooling duct 9 can also pass sequentially through the second guiding gutter 333, first lead
The discharge pump housing 1 of chute 323 is outer to realize cooling circulation so that the contact surface of the pump shaft 32 of axle sleeve 31 and first and the second pump shaft 33 is produced
Frictional heat energy quickly effectively take away, for the ease of manufacturing the transversal of the wherein described guiding gutter 333 of first guiding gutter 323 and second
Face is arc-shaped surface.
Wherein the quantity of the first guiding gutter 323 and the second guiding gutter 333 is three, and is uniformly circumferentially distributed.
The material of the axle sleeve 31, the first pump shaft 32 and the second pump shaft 33 improves axle sleeve 31, first using silication ceramics
Hardness, the self lubricity of the pump shaft 33 of pump shaft 32 and second, heat-resisting quantity.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of magnetic drive pump of resistance to dry grinding, including the pump housing, hitch, pump shaft component, the impeller with interior magnet rotor, outer magnet rotor and
Separation sleeve, outer magnet rotor is arranged on motor shaft end, and separation sleeve is set between the impeller with interior magnet rotor and outer magnet rotor,
The separation sleeve is sealedly and fixedly connected to form pump chamber with the pump housing, and the motor is fixed on the pump housing by hitch, its feature
It is：The pump shaft component includes axle sleeve, the first pump shaft and the second pump shaft, and the impeller is fixedly mounted on axle sleeve, described first
The one end of pump shaft is placed in the Single port of axle sleeve, and the other end of the first pump shaft is placed on the first supporting part of the pump housing, described
The one end of the second pump shaft is placed in the another port of axle sleeve, and the other end of the second pump shaft is placed in the second supporting part of separation sleeve
On, the two-port of the axle sleeve is equipped with chamfering, and first pump shaft and the second pump shaft are with the mating surface of the chamfering of axle sleeve
Capitate face.
2. a kind of magnetic drive pump of resistance to dry grinding according to claim 1, it is characterized in that：First pump shaft offers the first pump shaft
Central through hole, second pump shaft offers the second pump spindle center through hole；
First supporting part is provided with the pump housing through hole being connected with the first pump spindle center through hole, the pump housing through hole and the pump housing
Import is connected；
Second supporting part is provided with the separation sleeve through hole being connected with the first pump spindle center through hole, the madial wall of the separation sleeve
Lateral wall with impeller forms cooling duct, and the cooling duct is connected with separation sleeve through hole；
The cooling duct is connected by the runner on impeller with the import of the pump housing.
3. a kind of magnetic drive pump of resistance to dry grinding according to claim 1, it is characterized in that：First pump shaft stretches out and is provided with
One receiving portion, the second pump shaft stretches out and is provided with the second receiving portion, and first receiving portion and the second receiving portion are located at axle respectively
In the two-port of set.
4. a kind of magnetic drive pump of resistance to dry grinding according to claim 1, it is characterized in that：The angle of the chamfering is 22.5~60
Degree.
5. a kind of magnetic drive pump of resistance to dry grinding according to claim 1 or 2 or 3 or 4, it is characterized in that：Outside first pump shaft
Side wall is provided with some the first guiding gutters, and the lateral wall of second pump shaft is provided with some the second guiding gutters.
6. a kind of magnetic drive pump of resistance to dry grinding according to claim 5, it is characterized in that：First guiding gutter and the second guiding gutter
Cross section be arc-shaped surface.
7. a kind of magnetic drive pump of resistance to dry grinding according to claim 5, it is characterized in that：The number of the first guiding gutter and the second guiding gutter
It is three to measure, and is uniformly circumferentially distributed.
8. a kind of magnetic drive pump of resistance to dry grinding according to claim 1, it is characterized in that：The axle sleeve, the first pump shaft and the second pump
The material of axle is using silication ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812301.9A CN105298863B (en) | 2015-11-20 | 2015-11-20 | A kind of magnetic drive pump of resistance to dry grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812301.9A CN105298863B (en) | 2015-11-20 | 2015-11-20 | A kind of magnetic drive pump of resistance to dry grinding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298863A CN105298863A (en) | 2016-02-03 |
| CN105298863B true CN105298863B (en) | 2017-07-07 |
Family
ID=55196515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812301.9A Active CN105298863B (en) | 2015-11-20 | 2015-11-20 | A kind of magnetic drive pump of resistance to dry grinding |
Country Status (1)
| Country | Link |
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| CN (1) | CN105298863B (en) |
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| CN109026682A (en) * | 2018-09-11 | 2018-12-18 | 江阴爱尔姆真空设备有限公司 | A kind of new structure and its manufacturing process of rotor |
| CN109185177A (en) * | 2018-10-28 | 2019-01-11 | 旌开汽车科技（上海）有限公司 | A kind of isolated electronic water pump for automobile of differential |
| CN110285067B (en) * | 2019-06-28 | 2024-04-12 | 安徽泾县天和泵阀有限公司 | Magnetic pump with long service life and low maintenance cost |
| CN110314602B (en) * | 2019-07-23 | 2023-06-02 | 安庆泰邦船舶科技有限公司 | Heat radiation structure of magnetic cavity in magnetic connection homogenizer |
| CN110725802A (en) * | 2019-11-20 | 2020-01-24 | 上海佰诺泵阀有限公司 | Integrated magnetic pump in impeller |
| CN111456944A (en) * | 2020-04-14 | 2020-07-28 | 浙江理工大学 | High-speed low-temperature magnetic pump |
| CN112814921B (en) * | 2021-02-03 | 2022-10-21 | 三峡大学 | Magnetic pump capable of preventing cavitation adjustment and adjusting method thereof |
| CN115434921A (en) * | 2021-06-03 | 2022-12-06 | 苏州百硕自动化环保设备有限公司 | Acid and alkali-resistant combined magnetic pump |
| CN117118168B (en) * | 2023-10-24 | 2023-12-15 | 江苏荣翔泵业有限公司 | Device for pressing inner magnetic rotor and outer magnetic rotor of magnetic pump into sheath |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1012100B (en) * | 1989-02-17 | 1991-03-20 | 吴加兴 | Magnetic pump |
| DE4342649C1 (en) * | 1993-12-14 | 1995-02-16 | Munsch Kunststoff Schweistechn | Magnetic centrifugal pump for corrosive media |
| CN2756871Y (en) * | 2004-12-29 | 2006-02-08 | 温州市安得利泵业制造有限公司 | Magnetic pump |
| KR20110089785A (en) * | 2010-02-01 | 2011-08-09 | 케이이티주식회사 | Magnetic drive-type sealless pump |
| CN202520568U (en) * | 2012-03-06 | 2012-11-07 | 大连科蓝泵业有限公司 | Inner magnetic auxiliary support type magnetic force driving pump |
| CN202746267U (en) * | 2012-07-31 | 2013-02-20 | 上海佰诺泵阀有限公司 | Magnetic force driving pump with bearing block |
| CN103573682A (en) * | 2012-07-31 | 2014-02-12 | 上海佰诺泵阀有限公司 | Magnetic drive pump with bearing block |
| CN204783721U (en) * | 2015-07-15 | 2015-11-18 | 安徽卧龙泵阀股份有限公司 | High performance magnetic drive pump |
| CN205190245U (en) * | 2015-11-20 | 2016-04-27 | 温州市安得利耐酸泵有限公司 | Resistant dry grinding magnetic drive pump |
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2015
- 2015-11-20 CN CN201510812301.9A patent/CN105298863B/en active Active
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| CN105298863A (en) | 2016-02-03 |
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