CN203926039U - A kind of magnetic drive pump that can no load running - Google Patents
A kind of magnetic drive pump that can no load running Download PDFInfo
- Publication number
- CN203926039U CN203926039U CN201420339191.XU CN201420339191U CN203926039U CN 203926039 U CN203926039 U CN 203926039U CN 201420339191 U CN201420339191 U CN 201420339191U CN 203926039 U CN203926039 U CN 203926039U
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- CN
- China
- Prior art keywords
- pump
- magnet rotor
- magnetic drive
- impeller
- interior magnet
- Prior art date
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Abstract
The utility model relates to a kind of magnetic drive pump, particularly relates to a kind of magnetic drive pump that can no load running, comprises pump chamber, interior magnet rotor, outer magnet rotor, impeller and pump shaft; Described pump chamber consists of pump case and separation sleeve sealing; Described impeller is connected with described interior magnet rotor and is driven and rotated by interior magnet rotor; Described outer magnet rotor is driven and is rotated and drive the interior magnet rotor in pump chamber to rotate by motor; Described pump shaft one end is fastening to be arranged on pump case, and the other end is fastening to be arranged on separation sleeve; Described interior magnet rotor is matched interior magnet rotor is arranged on described pump shaft by bearing outer ring and rolling element; Described bearing outer ring and described interior magnet rotor are fastenedly connected, and described rolling element gathers and is arranged between described bearing outer ring and described pump shaft, and described bearing outer ring tightens and is combined with for the retainer of rolling element is installed.The utility model has not only been realized the no load running of magnetic drive pump, has also saved the space of material and pump chamber, has reduced cost.
Description
Technical field
The utility model relates to a kind of magnetic drive pump, particularly relates to a kind of magnetic drive pump that can no load running.
Background technique
Magnetic drive pump mainly consists of several parts such as pump case, separation sleeve, interior magnet rotor, pump shaft, impeller, bearings.When outside motor drives, magnet rotor rotates, magnetic field energy penetrates air gap and namagnetic substance, the interior magnet rotor that drive is connected with impeller is made synchronous rotary, realizes the contactless synchronous transmission of power, the movable sealing structure of easily revealing is converted into the static seal structure of zero leakage.Because pump shaft, interior magnet rotor are sealed completely by the pump housing, separation sleeve, thereby thoroughly solved " run, drip, leak " problem.
In prior art, magnetic drive pump is in use afraid of most no load running, but in some chemical processes, requirement must all be carried the medium in tank body totally, and when being transported to bottom, magnetic drive pump moves substantially under the operating mode that lacks liquid, is easy to cause magnetic force idle running, thereby cause magnetic drive pump pump to damage, sometimes due to managerial reason, the medium transport in tank body is over, and operator do not have timely termination of pumping, pump, in no load running, has so just damaged pump.
Model utility content
For deficiency of the prior art, the purpose of this utility model be to provide a kind of can magnetic drive pump no load running and simple in structure.
To achieve these goals, the technical solution adopted in the utility model is:
Magnetic drive pump that can no load running, comprises pump chamber, interior magnet rotor, outer magnet rotor, impeller and pump shaft; Described pump chamber consists of pump case and separation sleeve sealing; Described impeller is connected with described interior magnet rotor and is driven and rotated by interior magnet rotor; Described outer magnet rotor is driven and is rotated and drive the interior magnet rotor in pump chamber to rotate by motor; Described pump shaft one end is fastening to be arranged on pump case, and the other end is fastening to be arranged on separation sleeve; Described interior magnet rotor is matched interior magnet rotor is arranged on described pump shaft by bearing outer ring and rolling element; Described bearing outer ring and described interior magnet rotor are fastenedly connected, and described rolling element gathers and is arranged between described bearing outer ring and described pump shaft, and described bearing outer ring tightens and is combined with for the retainer of rolling element is installed.
Further, described pump shaft is arranged on described separation sleeve by separation sleeve stationary ring, and described interior magnet rotor is located by the thrust that matches with described separation sleeve stationary ring near the bearing outer ring of described separation sleeve stationary ring one side; Described impeller is provided with impeller rotating ring near one end drive fit of pump case, and on the corresponding pump case of this impeller rotating ring, drive fit is provided with pump case stationary ring, and the thrust that matches with impeller rotating ring by described pump case stationary ring of described impeller is located.
Further, described impeller rotating ring is laid with three semi-circular recesses on edge, and installs and correspondingly on end face be provided with three semicircle tongues at the impeller rotating ring of described impeller.
Further, described pump case stationary ring edge is arranged with two straight flanges, and at the pump case stationary ring of described pump case, corresponding two straight flanges that are provided with on end face is installed.
Further, described separation sleeve stationary ring is made by silicon nitride.
Further, described impeller rotating ring and described pump case stationary ring are made by silicon nitride.
Further, described rolling element is ball rolling element.
Further, described rolling element is made by silicon nitride.
Further, described pump shaft is the solid shaft of being made by silicon carbide.
Further, described retainer is made by teflon.
The beneficial effects of the utility model are:
1, the utility model has reduced bearing inner race, adopts rolling element directly and the rotation of pump shaft touch scrolling, has reduced certain frictional force, can realize and when magnetic drive pump dallies, produce small heat; And rolling element is directly installed on pump shaft, the fricative heat of rolling element directly can be transmitted to fast on the reasonable solid pump shaft of thermal conductivity and heat resistant type, reduce the temperature on rolling element and bearing outer ring, thereby reach the object that magnetic drive pump can no load running, the space of also having saved material and pump chamber, has reduced cost.
2, the Spielpassung of Spielpassung, impeller rotating ring and the pump case stationary ring by separation sleeve stationary ring and bearing outer ring remains on impeller and interior magnet rotor in pump chamber and does not produce and move axially, and prevents that interior magnet rotor from moving axially generation frictional force; And produce balancing axial thrust when magnetic drive pump rotates, and reach an axial transient equiliblium, reduce frictional force, reduce afterwards the generation of frictional heat.
3, the impeller rotating ring in the utility model and pump case stationary ring all by suitable design and installation on pump case and impeller, prevent that magnetic drive pump from producing relative movement with impeller and pump case respectively at the process middle period of running wheel rotating ring and pump case stationary ring, produce frictional force, increase the heat in pump chamber.
4, the rolling element that the utility model is used is ball rolling element, rolling element and the rubbing surface of pump shaft and bearing outer ring is and contacts, and has further reduced frictional force.
5, the corresponding parts in the utility model all adopt wear-resisting, high temperature resistant, easily to conduct heat material to make, and improve the no load running performance of magnetic drive pump.
Accompanying drawing explanation
Fig. 1 is structural scheme of mechanism of the present utility model.
Fig. 2 is impeller movable ring structure schematic diagram of the present utility model.
Fig. 3 is pump case static-ring structure schematic diagram of the present utility model.
In figure: 1-pump case, 2-pump case stationary ring, 3-impeller rotating ring, 4-impeller, 5-pump case sealing gasket, 6-pump shaft support, 7-bearing outer ring, 8-rolling element, 9-retainer, 10-pump shaft, 11-interior magnet rotor, 12-separation sleeve stationary ring, 13-separation sleeve, 14-support, 15-outer magnet rotor, 16-motor, 17-impeller boss, 18, pump case boss.
Embodiment
As described in Figure, the utility model comprises pump chamber, interior magnet rotor 11, outer magnet rotor 15, impeller 4 and pump shaft 10; Described pump chamber consists of 5 sealings of pump case sealing gasket pump case 1 and separation sleeve 13; Described impeller 4 is fixedly connected with described interior magnet rotor 11 and is driven and rotated by interior magnet rotor 11; Described outer magnet rotor 15 is connected with the output shaft of motor 16 and passes through motor 16 drivings and rotate, thereby drives the interior magnet rotor 11 in pump chamber to rotate; Described pump shaft 10 one end are arranged on pump case 1 by pump shaft support 17 is fastening, and the other end is fastening to be arranged on separation sleeve stationary ring 12, and the fastening separation sleeve 13 that is arranged on of this separation sleeve stationary ring 12, to guarantee that pump shaft 10 is fixedly mounted in pump chamber; The utility model is also provided with support 14, by this support 14, magnetic drive pump and motor 16 is connected as one; Matched interior magnet rotor 11 be arranged on described pump shaft 10 by bearing outer ring 7 and rolling element 8 respectively in the circle two ends of described interior magnet rotor 11; Described bearing outer ring 7 is fastenedly connected with described interior magnet rotor 11, described rolling element 8 gathers and is arranged between described bearing outer ring 7 and described pump shaft 10, this rolling element 8 is arranged in the groove on bearing outer ring 7 by retainer 9, this retainer 9 is in order to separate rolling element, preventing that rolling element from pressing together causes frictional force to increase, and described retainer 9 is fastening to be arranged on bearing outer ring 7.Compared with prior art, the utility model has reduced bearing inner race, adopts rolling element directly and the rotation of pump shaft touch scrolling, has reduced certain frictional force, can realize and when magnetic drive pump dallies, produce small heat; And rolling element is directly installed on pump shaft, the fricative heat of rolling element directly can be transmitted to fast on the reasonable solid pump shaft of thermal conductivity and heat resistant type, reduce the temperature on rolling element and bearing outer ring, thereby reach the object that magnetic drive pump can no load running, the space of also having saved material and pump chamber, has reduced cost.
In the present embodiment, described rolling element 8 is ball rolling element, rolling element and the rubbing surface of pump shaft and bearing outer ring is and contacts, and has further reduced frictional force.
In the present embodiment, described pump shaft 10 is arranged on described separation sleeve 13 by separation sleeve stationary ring 12, the described bearing outer ring 7 near separation sleeve stationary ring 12, one side of the close separation sleeve stationary ring 12 of this bearing outer ring 7 and adjacent separation sleeve stationary ring 12 1 sides are provided with certain gap, this gap is less than 1 ㎜, and described interior magnet rotor 11 is located near one end of separation sleeve thrust that matches with described separation sleeve stationary ring 12 by this bearing outer ring 7; Described impeller 4 is provided with near one end of pump case 1 the impeller boss 17 that impeller rotating ring 3 is installed, this impeller rotating ring 3 is arranged on impeller 4 by impeller boss 17 drive fits, on the corresponding pump case 1 of described impeller rotating ring 3, by pump case boss 18 drive fits, pump case stationary ring 2 is installed, and be provided with certain gap between described impeller rotating ring 3 and described pump case stationary ring 2, this gap is less than 1 ㎜, i.e. one end of the close pump case of described impeller thrust that matches with impeller rotating ring by described pump case stationary ring is located.The thrust location that coordinates that coordinates thrust location, impeller rotating ring and pump case stationary ring by separation sleeve stationary ring and bearing outer ring remains on impeller and interior magnet rotor in pump chamber and does not produce and move axially, and prevents that interior magnet rotor from moving axially generation frictional force; And produce balancing axial thrust when magnetic drive pump rotates, and reach an axial transient equiliblium, reduce frictional force, reduce afterwards the generation of frictional heat.
In the present embodiment, described impeller rotating ring 3 edges are provided with three semi-circular recesses, these three semi-circular recesses are distributed on the edge of impeller rotating ring 3, and at the impeller rotating ring of described impeller 4, installing on end face is correspondingly on impeller boss 17 to be provided with three semicircle tongues, prevent the on-stream impeller of magnetic drive pump and impeller rotating ring generation relative movement, produce frictional force, increase the heat in pump chamber.
In the present embodiment, described pump case stationary ring 2 edges are arranged with two straight flanges, and are corresponding two straight flanges that are provided with on pump case boss 18 on the pump case stationary ring 2 installation end faces of described pump case 1.Prevent the on-stream pump case stationary ring of magnetic drive pump and pump case generation relative movement, produce frictional force, increase the heat in pump chamber.
In the present embodiment, described pump case stationary ring 2, impeller rotating ring 3, rolling element 8, separation sleeve stationary ring 12 are made by silicon nitride material, and itself has lubricity silicon nitride material, and friction factor is little, and wear-resistant, high temperature resistant, and hardness is large, intensity is high; Make magnetic drive pump in running, produced very little friction, and itself just can be high temperature resistant, guarantee that magnetic drive pump can no load running can not cause the damage of magnetic drive pump.Described pump shaft 10 is made by carbofrax material, carbofrax material thermal conductivity is high, thermal expansion coefficient is little, wear-resisting property is good, can guarantee that pump shaft at high temperature normally works, and fast the heat conduction on rolling element be come, reduce the heat on rolling element and bearing outer ring.Described retainer is made by polytetrafluoroethylmaterial material, and polytetrafluoroethylmaterial material has high temperature resistant and high-lubricity, makes rolling element when roll rotational, produces very little frictional force with retainer.
Claims (10)
1. a magnetic drive pump that can no load running, comprises pump chamber, interior magnet rotor, outer magnet rotor, impeller and pump shaft; Described pump chamber consists of pump case and separation sleeve sealing; Described impeller is connected with described interior magnet rotor and is driven and rotated by interior magnet rotor; Described outer magnet rotor is driven and is rotated and drive the interior magnet rotor in pump chamber to rotate by motor; Described pump shaft one end is fastening to be arranged on pump case, and the other end is fastening to be arranged on separation sleeve; It is characterized in that: described interior magnet rotor is matched interior magnet rotor is arranged on described pump shaft by bearing outer ring and rolling element; Described bearing outer ring and described interior magnet rotor are fastenedly connected, and described rolling element gathers and is arranged between described bearing outer ring and described pump shaft, and described bearing outer ring tightens and is combined with for the retainer of rolling element is installed.
2. a kind of magnetic drive pump that can no load running according to claim 1, it is characterized in that: described pump shaft is arranged on described separation sleeve by separation sleeve stationary ring, described interior magnet rotor is located by the thrust that matches with described separation sleeve stationary ring near the bearing outer ring of described separation sleeve stationary ring one side; Described impeller is provided with impeller rotating ring near one end drive fit of pump case, and on the corresponding pump case of this impeller rotating ring, drive fit is provided with pump case stationary ring, and the thrust that matches with impeller rotating ring by described pump case stationary ring of described impeller is located.
3. a kind of magnetic drive pump that can no load running according to claim 2, is characterized in that: described impeller rotating ring is laid with three semi-circular recesses on edge, and installs and correspondingly on end face be provided with three semicircle tongues at the impeller rotating ring of described impeller.
4. a kind of magnetic drive pump that can no load running according to claim 2, is characterized in that: described pump case stationary ring edge is arranged with two straight flanges, and at the pump case stationary ring of described pump case, corresponding two straight flanges that are provided with on end face is installed.
5. a kind of magnetic drive pump that can no load running according to claim 2, is characterized in that: described separation sleeve stationary ring is made by silicon nitride.
6. a kind of magnetic drive pump that can no load running according to claim 2, is characterized in that: described impeller rotating ring and described pump case stationary ring are made by silicon nitride.
7. a kind of magnetic drive pump that can no load running according to claim 1, is characterized in that: described rolling element is ball rolling element.
8. according to a kind of magnetic drive pump that can no load running described in claim 1 or 7, it is characterized in that: described rolling element is made by silicon nitride.
9. a kind of magnetic drive pump that can no load running according to claim 1, is characterized in that: described pump shaft is the solid shaft of being made by silicon carbide.
10. a kind of magnetic drive pump that can no load running according to claim 1, is characterized in that: described retainer is made by teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339191.XU CN203926039U (en) | 2014-06-24 | 2014-06-24 | A kind of magnetic drive pump that can no load running |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339191.XU CN203926039U (en) | 2014-06-24 | 2014-06-24 | A kind of magnetic drive pump that can no load running |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926039U true CN203926039U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339191.XU Expired - Fee Related CN203926039U (en) | 2014-06-24 | 2014-06-24 | A kind of magnetic drive pump that can no load running |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017356A (en) * | 2021-11-02 | 2022-02-08 | 上海氟迈泵阀有限公司 | Magnetic drive pump protection mechanism |
-
2014
- 2014-06-24 CN CN201420339191.XU patent/CN203926039U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017356A (en) * | 2021-11-02 | 2022-02-08 | 上海氟迈泵阀有限公司 | Magnetic drive pump protection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |