CN103629148A - Horizontal self-cooling permanent magnet shield pump - Google Patents
Horizontal self-cooling permanent magnet shield pump Download PDFInfo
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- CN103629148A CN103629148A CN201310661903.XA CN201310661903A CN103629148A CN 103629148 A CN103629148 A CN 103629148A CN 201310661903 A CN201310661903 A CN 201310661903A CN 103629148 A CN103629148 A CN 103629148A
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- permanent magnet
- shield
- bearing
- main shaft
- impeller
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Abstract
The invention discloses a horizontal self-cooling permanent magnet shield pump, which comprises a pump shell, an impeller and a shield motor, wherein the shield motor comprise a shell, a stator core, a stator winding wound on the stator core, a rotor core and a permanent magnet fixed on the rotor core; a shield sleeve is arranged in an inner cavity of the shield motor; the permanent magnet is isolated from the stator core through the shield sleeve; the rotor core and the impeller share one main shaft; a spacer sleeve is arranged dead against a space between the pump shell of the impeller and the shell of the shield motor; one end of the main shaft is provided with a first bearing, and the other end of the main shaft is provided with a second bearing; the first bearing is positioned in the spacer sleeve; a water inlet hole is formed in a position, which is close to the water inlet end of the impeller, on the spacer sleeve; an upper through hole is formed in a position, which is close to the water outlet end of the impeller, in the spacer sleeve; the rotor core and the permanent magnet are positioned in a cavity constructed by the spacer sleeve and the shield sleeves. The horizontal shelf-cooling permanent magnet shield pump has the advantages of simple structure, good cooling effect, high efficiency, convenience in installation and high practicability.
Description
Technical field
The present invention relates to canned motorpump, refer in particular to a kind of horizontal from cooling permanent magnet shield pump.
Background technique
Ordinary Centrifugal Pumps has shaft seal, long-term running or while carrying the special liquids such as high temperature, high pressure, inflammable and explosive, corrosivity and hypertoxicity, easily reveals, and causes befouling environment, even jeopardize life safety, this difficult problem has restricted life-span and the application area of Ordinary Centrifugal Pumps always.Therefore in course of conveying, absolute leak free canned motorpump has caused people's interest, and is widely used.Canned motorpump is by shield electric machine and pump group all-in-one-piece no-leakage pump, and pump and drive motor are all closed in the pressurized container that a pumped medium is full of, and this pressurized container only has static seal.This structure has been cancelled the rotating sealing device that conventional centrifugal pump has, therefore can accomplish completely without leaking.
Due to unique technical advantage, since canned motorpump comes out, met the application demand in the fields such as petrochemical industry, defence and military, Aero-Space, air conditioner refrigerating, medicine food, atomic power, made up the deficiency of some occasion Ordinary Centrifugal Pumps.CN200710158558.2 has announced a kind of canned motorpump, mainly by pump head and common shield electric machine, formed, common shield electric machine includes rotor assembly and stator module, rotor portion comprises rotor iron core and rotor winding, and by rotor, magnetic conduction housing and stator magnetic conduction housing are not coated respectively for rotor and stator.200910045772.64 have announced a kind of vertical shield pump, mainly water pump and shield electric machine two-part, consist of, and shield electric machine adopts insulation winding, and rotor is comprised of stainless steel shaft and cast-aluminum rotor, at diameter of stator bore and rotor surface, are respectively equipped with stainless steel shielding cover.Consult a large amount of patent documentations and find, existing canned motorpump all has the feature of above-mentioned patent, and shielding motor rotor comprises rotor iron core and rotor winding, housing adopt stainless steel material; So, adopt rotor winding to reduce the efficiency of canned motorpump, meanwhile, adopt stainless housing, its internal electrical eddy current is larger, causes motor to produce larger heat.
Summary of the invention
The object of the invention is to overcome the deficiency in prior art, provide a kind of simple in structure, good cooling results, efficiency high, easy for installation horizontal from cooling permanent magnet shield pump.
Technological scheme of the present invention: a kind of horizontal from cooling permanent magnet shield pump, comprise pump case,, impeller and shield electric machine, described shield electric machine comprises shell, stator iron core and around staor winding, rotor iron core on described stator iron core be fixed on the permanent magnet on described rotor iron core, described shield electric machine inner chamber is provided with housing, described housing is by described permanent magnet and the isolation of described stator iron core, and described rotor iron core and described impeller share a main shaft; Between the pump case of described impeller and the shell of described shield electric machine, be provided with separation sleeve, described main shaft one end is provided with clutch shaft bearing, the other end is provided with the second bearing, described clutch shaft bearing is positioned at described separation sleeve, described separation sleeve is being provided with water inlet near on described impeller feed-water end, described separation sleeve is provided with via hole near described impeller waterexit end, and described rotor iron core and described permanent magnet are positioned at the cavity consisting of described separation sleeve and described housing.
Further, described housing one end is embedded on described separation sleeve; The other end is embedded on the bonnet of described shield electric machine.
Further, described impeller is positioned on described main shaft by locking nut; Described main shaft is the middle hollow shaft that is provided with intermediate throughholes; Described clutch shaft bearing and described the second bearing are sliding bearing, and described clutch shaft bearing one side is positioned on described separation sleeve, and opposite side is positioned on described main shaft by the first back-up ring; Described the second bearing one side is positioned on described housing, and opposite side is positioned on described main shaft by the second back-up ring, and described housing is provided with slotted eye, and described slotted eye connects the cavity of described the second bearing both sides.
Further, described clutch shaft bearing and described the second bearing are graphite material, have anti-corrosive properties and self-lubricating property.
Further,, described housing is the cylindrical shape semi-closed structure of an end opening, material is carbofrax material.Replace the stainless steel material using now, can effectively reduce the generation of the electric convolution of housing inside, reduce the heating value of motor.
Further, described shell and described pump case integral erection are on base.
Beneficial effect of the present invention: (1) rotor assembly is comprised of rotor iron core and permanent magnet, adopts permanent magnet not need outside excitation, makes that shield electric machine is simple in structure, efficiency is high; (2) housing adopts silicon carbide, replaces the stainless steel material using now, and has strong corrosion resistance and mechanical property, can effectively reduce the generation of the electric convolution of housing inside simultaneously, reduces the heating value of motor; (3) on separation sleeve, offer via hole and lower via hole, liquid flow into shield electric machine inner chamber by upper via hole and lower via hole, is used for realizing cooling to motor internal heating component; (4) main shaft is provided with intermediate throughholes, housing is provided with slotted eye, liquid is respectively by the gap of upper via hole, lower via hole, inflow housing and permanent magnet, by slotted eye, flow into the second bearing right side cavity, intermediate throughholes through main shaft flow back in the pump housing, realize hydronic process, whole good cooling results.
Accompanying drawing explanation
Fig. 1 is of the present invention a kind of horizontal from cooling permanent magnet shield pump erection drawing.
Fig. 2 be in Fig. 1 A-A to sectional view.
Fig. 3 is of the present invention a kind of horizontal from cooling permanent magnet shield pump internal coolant flow trace figure.
In figure: 1, pump case; 2, impeller; 3, separation sleeve; 4, housing; 5, clutch shaft bearing; 6, the first back-up ring; 7, main shaft; 8, rotor iron core; 9, permanent magnet; 10, stator iron core; 11, staor winding; 12, shell; 13, bonnet; 14, the second bearing; 15, the second back-up ring; 16, base; 17, locking nut; 18, outlet; 19, upper via hole; 20, lower via hole; 21, entrance, 22, intermediate throughholes, 23, slotted eye.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described.
A kind of horizontal structure from cooling permanent magnet shield pump of the present invention as depicted in figs. 1 and 2, canned motorpump is mainly comprised of pump case 1 and shield electric machine, specifically comprises: pump case 1, impeller 2, separation sleeve 3, housing 4, clutch shaft bearing 5, the first back-up ring 6, main shaft 7, rotor iron core 8, permanent magnet 9, stator iron core 10, staor winding 11, shell 12, bonnet 13, the second bearing 14, the second back-up ring 15, base 16, locking nut 17.Between described pump case 1 and shield electric machine, be provided with separation sleeve 3; Described separation sleeve 3 is provided with lower via hole 20 and upper via hole 19; Described shield electric machine mainly comprises stator module and rotor assembly, and described stator module comprises stator iron core 10 and staor winding 11; Described rotor assembly comprises rotor iron core 8 and permanent magnet 9, adopts permanent magnet 9 not need outside excitation, makes that shield electric machine is simple in structure, efficiency is high; Described impeller 2 is contained in pump case 1; Impeller 2 is arranged on the left end of main shaft 7, fixing by locking nut 17; Described main shaft 7 is provided with the hollow spindle of intermediate throughholes 22 for middle part, described main shaft 7 left sides by clutch shaft bearing 5 be erected in separation sleeve 3, the right is erected in housing 4 by the second bearing 14; Described clutch shaft bearing 5 the right are by the first back-up ring 6 equipotentials, and locate by separation sleeve 3 on the left side; Second described bearing 14 left sides are by the second back-up ring 15 equipotentials, and locate by housing 4 on the right; Described housing 4 separates rotor assembly and stator module, can shield the impact of internal liquid on stator module; Described housing 4 left sides are embedded on separation sleeve 3; Described housing 4 the right are embedded on bonnet 13, and described housing 4 is provided with some slotted eyes 23, are used for the cavity of described the second bearing 14 both sides to be communicated with; Described rotor assembly and main shaft 7 are affixed; Described stator module is fixed on shell 12 inside; Described shell 12 left sides and pump case 1 are bolted; Described shell 12 the right and bonnet 13 are bolted; Shell 12 and pump case 1 are erected on base 16.Described clutch shaft bearing 5, the second bearing 14, separation sleeve 3 have strong corrosion resistance and mechanical property; Described housing 4 is carbofrax material, replaces the stainless steel material using now, and can effectively reduce the generation of the electric convolution of housing 4 inside, reduces the heating value of motor.
Of the present invention a kind of horizontal from cooling permanent magnet shield pump internal coolant flow trace as shown in Figure 3, liquid enters from entrance 21, through impeller 2, by upper via hole 19, the lower via hole 20 of separation sleeve 3, flow between housing 4 and permanent magnet 9 gap, by slotted eye 23, flow into the cavity on the second bearing 14 right sides, finally, through the intermediate throughholes 22 of main shaft 7, flow back in pump case 1, liquid is from exporting 18 outflows, realize hydronic process, whole good cooling results.
Claims (6)
- One kind horizontal from cooling permanent magnet shield pump, comprise pump case (1), impeller (2) and shield electric machine, described shield electric machine comprises shell (12), stator iron core (10) and around the staor winding (11) on described stator iron core, rotor iron core (8) and be fixed on the permanent magnet (9) on described rotor iron core (8), it is characterized in that, described shield electric machine internal chamber wall is provided with housing (4), described housing (4) is by described permanent magnet (9) and described stator iron core (10) isolation, described rotor iron core (8) and described impeller (2) share a main shaft (7), between the pump case (1) of described impeller (2) and the shell (12) of described shield electric machine, be provided with separation sleeve (3), described main shaft (7) one end is provided with clutch shaft bearing (5), the other end is provided with the second bearing (14), described clutch shaft bearing (5) is positioned at described separation sleeve (3), described rotor iron core (8) and described permanent magnet (9) are positioned at the cavity consisting of described separation sleeve (3) and described housing (4), described separation sleeve (3) is provided with lower via hole (20) and upper via hole (19), described upper via hole (19) and described lower via hole (20) connect the inner chamber of described pump chamber and described shield electric machine.
- 2. a kind of horizontally it is characterized in that from cooling permanent magnet shield pump according to claim 1, it is upper that described housing (4) one end is embedded in described separation sleeve (3), and the other end is embedded on the bonnet (13) of described shield electric machine.
- 3. a kind of horizontally it is characterized in that from cooling permanent magnet shield pump according to claim 1, described impeller (2) is positioned on described main shaft (7) by locking nut (17); Shown in main shaft (7) be provided with the hollow shaft of intermediate throughholes (22) for centre; Described clutch shaft bearing (5) and described the second bearing (13) are sliding bearing, and it is upper that described clutch shaft bearing (5) one sides are positioned at described separation sleeve (3), and opposite side is positioned on described main shaft (7) by the first back-up ring (6); Described the second bearing (14) one sides are positioned on described housing (4), opposite side is positioned on described main shaft (7) by the second back-up ring (15), described housing (4) is provided with slotted eye (23), and described slotted eye (23) connects the cavity of described the second bearing (14) both sides.
- 4. a kind of horizontally it is characterized in that from cooling permanent magnet shield pump according to claim 1, described clutch shaft bearing and described the second bearing are graphite material, have anti-corrosive properties and self-lubricating property.
- 5. a kind of horizontally it is characterized in that from cooling permanent magnet shield pump according to claim 1, described housing (4) is the cylindrical shape semi-closed structure of an end opening, and material is carbofrax material.
- 6. a kind of horizontally it is characterized in that from cooling permanent magnet shield pump according to claim 1, described shell (12) and described pump case (1) integral erection are on base (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661903.XA CN103629148A (en) | 2013-12-10 | 2013-12-10 | Horizontal self-cooling permanent magnet shield pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661903.XA CN103629148A (en) | 2013-12-10 | 2013-12-10 | Horizontal self-cooling permanent magnet shield pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103629148A true CN103629148A (en) | 2014-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310661903.XA Withdrawn CN103629148A (en) | 2013-12-10 | 2013-12-10 | Horizontal self-cooling permanent magnet shield pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629148A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179693A (en) * | 2014-07-16 | 2014-12-03 | 苏州泰格动力机器有限公司 | Magnetic drive pump |
| CN106050679A (en) * | 2016-06-22 | 2016-10-26 | 安徽天富泵阀有限公司 | Internal circulation type self-priming shield pump |
| CN107769409A (en) * | 2016-08-22 | 2018-03-06 | 深圳东明机电股份有限公司 | Pump motor and its rotor assembly |
| CN107882745A (en) * | 2017-11-14 | 2018-04-06 | 乐山东风高斯特种电机技术有限公司 | Laser sight cooling pump |
| CN109404295A (en) * | 2018-12-19 | 2019-03-01 | 成都富临精工电子电器科技有限公司 | Circulating cooling electronic water pump in a kind of anti-clogging |
| CN110285069A (en) * | 2019-07-05 | 2019-09-27 | 黄宗洪 | Water flow internal circulation water pump |
| CN113014029A (en) * | 2021-03-05 | 2021-06-22 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
| CN114352547A (en) * | 2022-01-12 | 2022-04-15 | 浙江尔格科技股份有限公司 | Double-suction oil pump for transformer and constructed transformer strong oil circulating cooling system |
-
2013
- 2013-12-10 CN CN201310661903.XA patent/CN103629148A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179693A (en) * | 2014-07-16 | 2014-12-03 | 苏州泰格动力机器有限公司 | Magnetic drive pump |
| CN104179693B (en) * | 2014-07-16 | 2018-01-02 | 苏州泰格动力机器有限公司 | A kind of magnetic drive pump |
| CN106050679A (en) * | 2016-06-22 | 2016-10-26 | 安徽天富泵阀有限公司 | Internal circulation type self-priming shield pump |
| CN107769409A (en) * | 2016-08-22 | 2018-03-06 | 深圳东明机电股份有限公司 | Pump motor and its rotor assembly |
| CN107882745A (en) * | 2017-11-14 | 2018-04-06 | 乐山东风高斯特种电机技术有限公司 | Laser sight cooling pump |
| CN109404295A (en) * | 2018-12-19 | 2019-03-01 | 成都富临精工电子电器科技有限公司 | Circulating cooling electronic water pump in a kind of anti-clogging |
| CN110285069A (en) * | 2019-07-05 | 2019-09-27 | 黄宗洪 | Water flow internal circulation water pump |
| CN113014029A (en) * | 2021-03-05 | 2021-06-22 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
| CN113014029B (en) * | 2021-03-05 | 2021-09-14 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
| CN114352547A (en) * | 2022-01-12 | 2022-04-15 | 浙江尔格科技股份有限公司 | Double-suction oil pump for transformer and constructed transformer strong oil circulating cooling system |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140312 |