CN203548315U - Main shaft dry-type operation magnetic pump - Google Patents
Main shaft dry-type operation magnetic pump Download PDFInfo
- Publication number
- CN203548315U CN203548315U CN201320746734.5U CN201320746734U CN203548315U CN 203548315 U CN203548315 U CN 203548315U CN 201320746734 U CN201320746734 U CN 201320746734U CN 203548315 U CN203548315 U CN 203548315U
- Authority
- CN
- China
- Prior art keywords
- pump
- cover
- shaft
- main shaft
- dams
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 239000011261 inert gas Substances 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000011152 fibreglass Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 4
- 230000007096 poisonous effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a main shaft dry-type operation magnetic pump which comprises a pump body (1), a pump cover (2), a pump shaft (3), an impeller (4), an inner magnet rotor (5), a separating sleeve (6), an outer magnet rotor (7) and a connecting frame (8). The main shaft dry-type operation magnetic pump is characterized in that a closure sleeve (23) and a sealing ring device (28) are arranged between a pump cover shaft hole (2') and the pump shaft (3) to conduct sealing, the pump shaft (3) is connected with the connecting frame (8) through rolling bearing devices (38a and 38b), an inert gas inlet hole (81) is formed in the connecting frame (8), and the separating sleeve (6) is made of glass fiber reinforced plastic materials. The main shaft dry-type operation magnetic pump is simple in structure and convenient to machine, install and maintain, the applied range of the magnetic pump is effectively expanded, the safety performance of the magnetic pump is effectively improved, and the service life of the magnetic pump is effectively prolonged.
Description
Technical field
The utility model relates to magnetic drive pump, the magnetic drive pump that particularly a kind of main shaft turns round under dry gas situation.
Background technique
Magnetic drive pump comprises the pump housing 1, pump cover 2, main shaft 3, impeller 4, interior magnet rotor 5, separation sleeve 6, outer magnet rotor 7, link press span 8, bearing housing 9, separation sleeve 6 is sealedly and fixedly connected with pump cover 2 or link press span 8, form Seal cage and make shaft seal, prevented that medium from leaking from pump spindle end, the interior magnet rotor 5 being arranged on main shaft 3 coordinates band main shaft 3 to rotate in separation sleeve 6 with the outer magnet rotor 7 of separation sleeve 6 outsides.
It is to adopt silicon carbide sliding bearing that prior art magnetic drive pump main shaft and pump cover produce, when external rotor drives internal rotor to rotate, be present in high-strength magnetic field between inner and outer rotors and produce magnetic eddy current heat because of the cutting of metal separation sleeve, in order to reduce the impact of eddy current heat on pump efficiency and rotor, on pump cover, offer medium and enter hole, at pump shaft and plain bearing housing, put and offer backflow road and form cool cycles path and reduce magnetic eddy current heat and sliding bearing frictional heat, good plain bearing arrangement and interior magnet rotor are to be operated in liquid medium.Its shortcoming is not enough, and the one, improved processing cost, offering of the installation of sliding bearing and cooling circuit, makes complex structure, and processing cost improves greatly; The 2nd, because sliding bearing is silicon carbide material, be breakable member, be in operation fragmentation easily occurs, cause shutdown loss; The 3rd, because magnetic patch is subject to the restriction of temperature conditions, when the magnetic eddy current heat that produces of being in operation is excessive, will cause magnetic patch demagnetization, even demagnetization, has influence on the decrease in efficiency of pump or shuts down, and user is caused to economic loss; The 4th, because cool cycles is to utilize the medium of carrying to realize, when carrying poisonous medium, the toxic liquid that is present in rotor system causes trouble and insecurity to dismounting maintenance.
Model utility content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and the magnetic drive pump that provides a kind of main shaft to turn round under dry gas situation, to improve working life, reduces production costs, and is convenient to maintenance.
Model utility content
the utility modelmagnetic drive pump comprises the pump housing 1, pump cover 2, main shaft 3, impeller 4, interior magnet rotor 5, separation sleeve 6, outer magnet rotor 7, link press span 8, bearing housing 9, separation sleeve 6 is sealedly and fixedly connected with link press span 8, it is characterized in that being provided with at pump cover 2 axis holes 2 ' and 3 of pump shafts the cover 23 that dams, on the outer ring surface of cover 23 that dams, offer spiral chute 24, spiral chute 24 coordinates formation spiral pump ring with pump cover 2 axis holes 2 ', the medium entering in pump chamber in pump cover axis hole 2 ' is carried out to reverse pumping, stop medium by reaching seal action, between the axis hole 2 ' of cover 23 outer ring surface and pump cover 2 that dams, be also provided with gasket set 28, gasket set 28 is to have stopping table 20 in the port of pump cover 2 axis holes 2 ', the stainless steel rotary oil seal coordinating with the cover 23 outboard end outer shroud light faces that dam in the interior installation of this stopping table 20, at cover 23 the inner ring surface that dams, offering stopping table locates and coordinates with pump shaft 3 shaft shoulders 3 ', inner ring surface and 3 of pump shafts at the cover 23 that dams are provided with seal ring 25, 8 of pump shaft 3 and link press spans are used rolling bearing system 38a, 38b connects, on link press span 8, offer indifferent gas (as nitrogen) inlet hole 81, to the interior axocoel of link press span 8, pass into pressure inert gas, separation sleeve 6 adopts the separation sleeve of glass steel material.
The utility model is provided with the cover 23 formation spiral pump rings that dam with spiral chute 24 at pump cover axis hole 2 ' and 3 of pump shafts, and under gasket set 28 coordinates, fully effectively pump cover axis hole 2 ' is sealed, dam cover 23 be arranged on gasket set 28 in stopping table 20 and coordinate and seal, it is simple in structure, and processing, installation and maintenance are conveniently; Coordinate the separation sleeve 6 that adopts glass steel material, eliminated the heat producing because of magnetic eddy current, do not need to design cool cycles path, simplify the structure, greatly reduce difficulty of processing and cost; Pump shaft 3 is connected with rolling bearing system 38a, 38b with 8 of link press spans; the rolling bearing of sealing grease lubrication is for ceramic slide bearing; smooth running vibration is low; be equipped with controlled atmosphere sealing, further effectively stop medium to enter rotor-end from impeller end, overcome the frangible problem of sliding bearing; safety in utilization and working life have been improved; simple in structure, installation, maintenance is convenient, and relative sliding bearing has further reduced cost of production.Because the medium in pump chamber does not enter in pump shaft rotor chamber, while carrying poisonous, hazardous medium to use, when dismounting maintenance bearing, separation sleeve, interior magnet rotor, do not have poisonous medium and release, maintenance safety, convenient; The utility model is by the improvement of said structure, good combination property, has improved application power, has strengthened the application area of institute's fed sheet of a media, the medium of carrying can comprise the liquid of high burn into poisonous and harmful, solid shape, sticky colloidal liquid, the liquid of temperature up to 400 ℃, the liquid of gassiness etc.
Accompanying drawing explanation
Fig. 1 is prior art structural representation.
Fig. 2 is the utility model example structure schematic diagram.
concrete mode of execution
The utility model magnetic drive pump comprises the pump housing 1, pump cover 2, main shaft 3, impeller 4, interior magnet rotor 5, separation sleeve 6, outer magnet rotor 7, link press span 8, bearing housing 9, separation sleeve 6 is sealedly and fixedly connected with link press span 8, it is characterized in that being provided with at pump cover 2 axis holes 2 ' and 3 of pump shafts the cover 23 that dams, on the outer ring surface of cover 23 that dams, offer spiral chute 24, spiral chute 24 forms spiral pump ring with pump cover 2 shaft hole matchings, the medium entering in pump chamber in pump cover axis hole 2 ' is carried out to reverse pumping, port at pump cover 2 axis holes 2 ' has stopping table 20, the stainless steel rotary oil seal gasket set 28 coordinating with the cover 23 outboard end outer shroud light faces 23 ' that dam in the interior installation of this stopping table 20, at cover 23 the inner ring surface that dams, offering stopping table locates and coordinates with pump shaft 3 shaft shoulders 3 ', inner ring surface and 3 of pump shafts at the cover 23 that dams are provided with O-ring seals 25, closed type rolling bearing means 38a for 8 of pump shaft 3 and link press spans, 38b connects, on link press span 8, offer nitrogen inlet hole 81, separation sleeve 6 adopts the separation sleeve of glass steel material.
Claims (1)
1. main shaft dry-running magnetic drive pump, comprise the pump housing (1), pump cover (2), main shaft (3), impeller (4), interior magnet rotor (5), separation sleeve (6), outer magnet rotor (7), link press span (8), bearing housing (9), separation sleeve (6) is sealedly and fixedly connected with link press span (8), it is characterized in that being provided with the cover (23) that dams between pump cover (2) axis holes (2 ') and pump shaft (3), on the outer ring surface of cover (23) that dams, offer spiral chute (24), spiral chute (24) coordinates formation spiral pump ring with pump cover (2) axis holes (2 '), the medium entering in pump chamber in pump cover axis hole (2 ') is carried out to reverse pumping, stop medium by reaching seal action, in the port of pump cover (2) axis holes (2 '), have stopping table (20), the envelope gasket set (28) coordinating with cover (23) the outboard end outer shroud light face that dams is installed in this stopping table (20), at the inner ring surface of the cover (23) that dams, offering stopping table coordinates with pump shaft (3) shaft shoulders (3 ') location, between the inner ring surface of the cover (23) that dams and pump shaft (3), be provided with seal ring (25), between pump shaft (3) and link press span (8), use rolling bearing system (38a, 38b) connect, on link press span (8), offer inert gas inlet hole (81), the separation sleeve that separation sleeve (6) is glass steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746734.5U CN203548315U (en) | 2013-11-25 | 2013-11-25 | Main shaft dry-type operation magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746734.5U CN203548315U (en) | 2013-11-25 | 2013-11-25 | Main shaft dry-type operation magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548315U true CN203548315U (en) | 2014-04-16 |
Family
ID=50466439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746734.5U Expired - Lifetime CN203548315U (en) | 2013-11-25 | 2013-11-25 | Main shaft dry-type operation magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603825A (en) * | 2013-11-25 | 2014-02-26 | 丹东克隆先锋泵业有限公司 | Spindle dry-type-running magnetic drive pump |
| CN105134963A (en) * | 2015-08-18 | 2015-12-09 | 洛阳轴研科技股份有限公司 | Grease lubrication main shaft system |
-
2013
- 2013-11-25 CN CN201320746734.5U patent/CN203548315U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603825A (en) * | 2013-11-25 | 2014-02-26 | 丹东克隆先锋泵业有限公司 | Spindle dry-type-running magnetic drive pump |
| CN105134963A (en) * | 2015-08-18 | 2015-12-09 | 洛阳轴研科技股份有限公司 | Grease lubrication main shaft system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |