CN102954003B - Magnetic driving pump - Google Patents
Magnetic driving pump Download PDFInfo
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- CN102954003B CN102954003B CN201110235166.8A CN201110235166A CN102954003B CN 102954003 B CN102954003 B CN 102954003B CN 201110235166 A CN201110235166 A CN 201110235166A CN 102954003 B CN102954003 B CN 102954003B
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- pump
- sleeve
- pump cover
- isolation sleeve
- magnet rotor
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Abstract
A magnetic driving pump comprises a pump body, a pump cover, a pump shaft, an impeller, an outer magnetic rotor, an inner magnetic rotor, an isolation sleeve and a motor. The isolation sleeve comprises a primary isolation sleeve and a second isolation sleeve, the primary isolation sleeve is arranged on one side close to the inner magnetic rotor, the secondary isolation sleeve is arranged on one side close to the outer magnetic rotor, and an interval is reserved between the primary isolation sleeve and the secondary isolation sleeve to form an isolation sleeve cavity. One side of the pump cover is provided with a through hole communicating a pump cavity with an inner cavity, and the other side of the pump cover is provided with a diagonal circulating hole. The front end of the circulating hole is communicated with the pump cavity at the front end of the pump cover, and the rear end of the circulating hole is communicated with a shaft hole. When a medium delivered by the pump is to be heated or cooled, an external heater/cooler is directly transmitted to the pump cavity, a sliding bearing pair and the inner cavity of the isolation sleeve to heat or cool the medium owing to the pump cover and the double-layer isolation sleeve. By the aid of the reasonable structural design, sufficient pressure and flow of all internal circulating and lubricating systems can guarantee stable running of the pump.
Description
Technical field
The present invention relates to a kind of driven pump, particularly a kind of magnetic force driving pump.
Background technique
The pump shaft two ends of traditional magnetic drive pump are generally all fixed on the pump housing and separation sleeve, and because magnetic force transmitting torque reason, separation sleeve is generally designed to thin-walled type all as much as possible, and this causes the separation sleeve when pump long time running to be easily out of shape even to produce to scrape with outer steel and to put on the skin and rupture and leakage; Pump shaft two ends all adopt screw threads for fastening; The circulating lubrication simplicity of design of sliding bearing pair, after filling with liquid before pump running, separation sleeve inside even also has air, thus causes this pump dry running phenomenon, even also has partial corrosion medium during maintenance pump in some separation sleeve; Bearing housing generally adopts carbon graphite material, and pump shaft is direct and bearing housing friction operation; Dynamic and static ring adopts carbon graphite and stupalith, and these materials all easily wear and tear cracked; And be all designed to individual layer separation sleeve, the dielectric leakage thus accidents caused after separation sleeve deformation fracture when bad working environments operates.
Summary of the invention
Object of the present invention, is to provide a kind of magnetic force driving pump that normally can work under bad working environments environment.
The object of the present invention is achieved like this: a kind of magnetic force driving pump, comprises the pump housing, pump cover, pump shaft, impeller, outer magnet rotor, interior magnet rotor, separation sleeve and motor, and separation sleeve is located between outer magnet rotor and interior magnet rotor; Form pump chamber between pump cover and the pump housing, between pump cover and interior magnet rotor, separation sleeve, form inner chamber; Be characterized in, described separation sleeve comprises one-level separation sleeve and secondary separation sleeve, one-level separation sleeve is arranged near interior magnet rotor side, and secondary separation sleeve is arranged near outer magnet rotor side, is provided with gap-forming and isolates mantle cavity between one-level separation sleeve and secondary separation sleeve.
The center of described pump cover is provided with the axis hole for installing pump shaft, the side of pump cover is provided with the through hole of the through pump chamber in front and back and inner chamber, the opposite side of pump cover is provided with an oblique circulation port, and the front end of this circulation port is to the through pump chamber in front end of pump cover, and the rear end of circulation port is communicated with axis hole.
The front portion of described pump shaft is provided with front slide bearing pair, and rear portion is provided with rear sliding bearing pair; Front slide bearing pair and rear sliding bearing pair are made up of axle sleeve and bearing housing respectively, diaxon bearing sleeve to be set on pump shaft and to be fixedly linked with pump cover, two axle sleeves are set in two bearings and put, wherein, axle sleeve and the impeller of front slide bearing pair are fixedly linked, and axle sleeve and the interior magnet rotor of rear sliding bearing pair are fixedly linked; Pump shaft between front slide bearing pair and rear sliding bearing pair overlaps and has axle sleeve interstage sleeve, form ring cavity between axle sleeve interstage sleeve and pump cover, this ring cavity is communicated with the circulation port on pump cover.
Described bearing housing inwall is interval with the through lubrication groove of many axis, and an end face correspondence of bearing housing is provided with many radial grooves, and one end of described lubrication groove is communicated with described radial groove, and the other end is communicated with described ring cavity; Radial groove on front slide bearing pair bearing housing is also communicated with pump chamber, the radial groove on rear sliding bearing pair bearing housing also with inner space.
Described axle sleeve comprises the less sleeve body of diameter and the larger connecting end of diameter, and at sleeve body, contiguous connecting end place is provided with a ring groove, the lubrication groove of this annular groove and bearing housing and radial groove is adaptive is communicated with.
Described front slide bearing pair and rear sliding bearing pair all adopt pressureless sintering carbofrax material to be made.
Described secondary separation sleeve comprises U-shaped body, is connected with the adapter for being in communication with the outside in the opening end side of U-shaped body.
The present invention, owing to have employed above technological scheme, when the medium of transport pump needs heating or cooling, can utilize outside hot body/cold body, be directly conducted to pump chamber, sliding bearing pair, isolation mantle cavity carry out heating or cooling medium; The weight of impeller, pump shaft and interior magnet rotor is born by pump cover; Two axle sleeves on pump shaft, by the pin transmitting torque be fixed on impeller and internal rotor, ensure axle sleeve and pump shaft run-in synchronism; Sliding bearing pair adopts Novel non-pressure sintered silicon carbon material, there is the characteristic such as high hardness, high abrasion, bearing housing inside arranges several lubrication groove, matches with the circulation port on pump cover, can the secondary and heat taken away because sliding friction produces of enforceable lubrication sliding bearing; Inner eycle liquid stream is for taking away the heat that separation sleeve is produced by eddy current, and rational structural design makes all inner loop lubrication systems have enough pressure and flow to ensure pump stable operation; Separation sleeve has the ability draining medium (when termination of pumping is repaired) and automatic-discharging (before starting during perfusion) completely; The flow passage components of whole pump select high-quality stainless steel to adopt advanced middle temperature wax Ludox technique to make, and runner is clearly bright and clean, and waterpower combination property is superior; Double-layered isolation casing design can also to be leaked hunting sensor in the adapter place assembling of secondary separation sleeve, by the leak case of control system monitoring one-level separation sleeve, guarantees that magnetic drive pump also can normally run in more severe occasion.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of magnetic force driving pump of the present invention;
Fig. 2 is the sectional structure schematic diagram of the pump cover in the present invention;
Fig. 3 is the sectional structure schematic diagram of the bearing housing in the present invention;
Fig. 4 is the plan structure schematic diagram of the bearing housing in the present invention;
Fig. 5 is the sectional structure schematic diagram of the axle sleeve in the present invention;
Fig. 6 is the sectional structure schematic diagram of the secondary separation sleeve in the present invention.
Embodiment
See Fig. 1, coordinate see Fig. 2 to Fig. 6, magnetic force driving pump of the present invention, comprises the pump housing 1, pump cover 2, pump shaft 3, impeller 4, outer magnet rotor 5, interior magnet rotor 6, one-level separation sleeve 7, secondary separation sleeve 8 and motor 9, and the pump housing 1 and motor 9 are arranged on base 10.Link press span 11 is connected with between motor 9 and pump cover 2.Form pump chamber 12 between pump cover 2 and the pump housing 1, between pump cover 2 and interior magnet rotor 6, one-level separation sleeve 7, form inner chamber 13; Separation sleeve is located between outer magnet rotor 5 and interior magnet rotor 6, one-level separation sleeve 7 is wherein arranged near interior magnet rotor 6 side, secondary separation sleeve 8 is arranged near outer magnet rotor 5 side, is provided with gap-forming and isolates mantle cavity 14 between one-level separation sleeve 7 and secondary separation sleeve 8.
Coordinate see Fig. 2, the center of the pump cover 2 in the present invention is provided with the axis hole 21 for installing pump shaft, the side of pump cover is provided with the through hole 22 of the through pump chamber 12 in front and back and inner chamber 13, the opposite side of pump cover is provided with an oblique circulation port 23, the front end of this circulation port 23 is to the through pump chamber 12 in front end of pump cover, and the rear end of circulation port is communicated with axis hole 21.
Continue see Fig. 1, coordinate see Fig. 3, Fig. 4, Fig. 5, the front portion of the pump shaft 3 in the present invention is provided with front slide bearing pair, and rear portion is provided with rear sliding bearing pair; Front slide bearing pair and rear sliding bearing pair all adopt pressureless sintering carbofrax material to be made.Front slide bearing pair and rear sliding bearing pair are made up of axle sleeve 15 and bearing housing 16 respectively, diaxon bearing sleeve 15 to be set on pump shaft 3 and to be fixedly linked with pump cover 2, two axle sleeves 16 are set on diaxon bearing sleeve 15, wherein, axle sleeve 16 and the impeller 4 of front slide bearing pair are fixedly linked, and axle sleeve 16 and the interior magnet rotor 6 of rear sliding bearing pair are fixedly linked; Pump shaft between front slide bearing pair and rear sliding bearing pair overlaps and has axle sleeve interstage sleeve 17, form ring cavity 18 between axle sleeve interstage sleeve 17 and pump cover 2, this ring cavity 18 is communicated with the circulation port 23 on pump cover 2.
Coordinate see Fig. 3, Fig. 4, centre bearer bush 15 inwall of the present invention is interval with the through lubrication groove 151 of many axis, an end face correspondence of bearing housing is provided with many radial grooves 152, and one end of lubrication groove 151 is communicated with radial groove 152, and the other end is communicated with ring cavity 18; Radial groove on front slide bearing pair bearing housing is also communicated with pump chamber 12, and the radial groove on rear sliding bearing pair bearing housing is also communicated with inner chamber 13.
Coordinate see Fig. 5, Intermediate shaft sleeve 16 of the present invention comprises the less sleeve body of diameter 161 and the larger connecting end 162 of diameter, at sleeve body, contiguous connecting end place is provided with a ring groove 163, the lubrication groove 151 of this annular groove 163 and bearing housing and radial groove 152 is adaptive is communicated with.
Coordinate see Fig. 6, in the present invention, secondary separation sleeve 8 comprises U-shaped body 81, is connected with the adapter 82 for being in communication with the outside in the opening end side of U-shaped body.
Claims (2)
1. a magnetic force driving pump, comprises the pump housing, pump cover, pump shaft, impeller, outer magnet rotor, interior magnet rotor, separation sleeve and motor, and separation sleeve is located between outer magnet rotor and interior magnet rotor; Form pump chamber between pump cover and the pump housing, between pump cover and interior magnet rotor, separation sleeve, form inner chamber; Described separation sleeve comprises one-level separation sleeve and secondary separation sleeve, and one-level separation sleeve is arranged near interior magnet rotor side, and secondary separation sleeve is arranged near outer magnet rotor side, is provided with gap-forming and isolates mantle cavity between one-level separation sleeve and secondary separation sleeve;
The center of described pump cover is provided with the axis hole for installing pump shaft, the side of pump cover is provided with the through hole of the through pump chamber in front and back and inner chamber, the opposite side of pump cover is provided with an oblique circulation port, and the front end of this circulation port is to the through pump chamber in front end of pump cover, and the rear end of circulation port is communicated with axis hole;
The front portion of described pump shaft is provided with front slide bearing pair, and rear portion is provided with rear sliding bearing pair; Front slide bearing pair and rear sliding bearing pair are made up of axle sleeve and bearing housing respectively, diaxon bearing sleeve to be set on pump shaft and to be fixedly linked with pump cover, two axle sleeves are set in two bearings and put, wherein, axle sleeve and the impeller of front slide bearing pair are fixedly linked, and axle sleeve and the interior magnet rotor of rear sliding bearing pair are fixedly linked; Pump shaft between front slide bearing pair and rear sliding bearing pair overlaps and has axle sleeve interstage sleeve, form ring cavity between axle sleeve interstage sleeve and pump cover, this ring cavity is communicated with the circulation port on pump cover;
It is characterized in that: described bearing housing inwall is interval with the through lubrication groove of many axis, an end face correspondence of bearing housing is provided with many radial grooves, and one end of described lubrication groove is communicated with described radial groove, and the other end is communicated with described ring cavity; Radial groove on front slide bearing pair bearing housing is also communicated with pump chamber, the radial groove on rear sliding bearing pair bearing housing also with inner space.
2. magnetic force driving pump according to claim 1, it is characterized in that: described axle sleeve comprises the less sleeve body of diameter and the larger connecting end of diameter, at sleeve body, contiguous connecting end place is provided with a ring groove, the lubrication groove of this annular groove and bearing housing and radial groove is adaptive is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235166.8A CN102954003B (en) | 2011-08-16 | 2011-08-16 | Magnetic driving pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235166.8A CN102954003B (en) | 2011-08-16 | 2011-08-16 | Magnetic driving pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954003A CN102954003A (en) | 2013-03-06 |
| CN102954003B true CN102954003B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110235166.8A Active CN102954003B (en) | 2011-08-16 | 2011-08-16 | Magnetic driving pump |
Country Status (1)
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| CN (1) | CN102954003B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090096A (en) * | 2014-05-21 | 2015-11-25 | 上海佰诺泵阀有限公司 | Magnetic force peripheral pump |
| CN104088797B (en) * | 2014-06-25 | 2017-02-15 | 安徽盛唐泵阀制造有限公司 | Anti-crystallization magnetic pump |
| CN104100536B (en) * | 2014-06-25 | 2017-01-25 | 安徽盛唐泵阀制造有限公司 | Isolation cover assembly of magnetic force pump |
| CN104196763B (en) * | 2014-07-01 | 2017-07-28 | 安徽盛唐泵阀制造有限公司 | A kind of conveying easily-crystallized medium magnetic drive pump |
| CN108252922A (en) * | 2016-12-28 | 2018-07-06 | 上海佰诺泵阀有限公司 | Heavy load Fluorine-lined magnetic drive pump |
| CN106837813A (en) * | 2017-02-20 | 2017-06-13 | 江苏建安泵业制造有限公司 | A kind of outer circulation magnetic force pumping system |
| CN107178506A (en) * | 2017-07-12 | 2017-09-19 | 盐城国众化工有限公司 | A kind of Methanol Recovery flow pump monitoring device |
| CN107355429A (en) * | 2017-08-25 | 2017-11-17 | 瑞希特工程工艺（南京）有限公司 | Cage, pump group part and magnetic drive pump |
| CN109578290B (en) * | 2017-09-28 | 2023-09-19 | 上海佰诺泵阀有限公司 | Secondary air source protection magnetic pump device suitable for conveying medium containing particle impurities |
| CN112032067A (en) * | 2020-08-22 | 2020-12-04 | 安徽江南泵阀集团有限公司 | Self-cooling magnetic pump |
| CN112483422A (en) * | 2020-10-21 | 2021-03-12 | 江苏大学镇江流体工程装备技术研究院 | Magnetic pump for chemical industry |
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| DE3715484A1 (en) * | 1987-05-09 | 1988-11-17 | Klaus Union Armaturen | MAGNETIC PUMP DRIVE |
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| DE10240800A1 (en) * | 2002-08-30 | 2004-03-18 | Munsch Chemie-Pumpen Gmbh | Pump with non-metal surface in contact with feed medium circuit for fluid feed medium provided between feed chamber and clearance gap by means of first passage lying outside shaft and second passage lying inside shaft |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102228368B (en) * | 2010-04-14 | 2013-11-06 | 晶辉科技（深圳）有限公司 | Damping device for toaster sliding frame |
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| US6056520A (en) * | 1995-12-04 | 2000-05-02 | Chemical Seal & Packing, Inc. | Magnetic drive pump having encased magnets for pumping very low temperature fluids |
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| DE10240800A1 (en) * | 2002-08-30 | 2004-03-18 | Munsch Chemie-Pumpen Gmbh | Pump with non-metal surface in contact with feed medium circuit for fluid feed medium provided between feed chamber and clearance gap by means of first passage lying outside shaft and second passage lying inside shaft |
| CN200982309Y (en) * | 2006-09-15 | 2007-11-28 | 华东理工大学 | Magnetic pump thrust sliding bearing |
| CN101555880A (en) * | 2009-05-13 | 2009-10-14 | 丹东克隆集团有限责任公司 | Magnetic pump |
| CN202073797U (en) * | 2010-12-17 | 2011-12-14 | 上海佰诺泵阀有限公司 | Magnetic force driving pump |
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Non-Patent Citations (1)
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| CN102954003A (en) | 2013-03-06 |
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