CN104405676A - Pump spindle used for full-coated corrosion-resisting magnetic pump and provided with inner magnetic steel sealing device - Google Patents
Pump spindle used for full-coated corrosion-resisting magnetic pump and provided with inner magnetic steel sealing device Download PDFInfo
- Publication number
- CN104405676A CN104405676A CN201410492696.4A CN201410492696A CN104405676A CN 104405676 A CN104405676 A CN 104405676A CN 201410492696 A CN201410492696 A CN 201410492696A CN 104405676 A CN104405676 A CN 104405676A
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- pump
- magnet steel
- shaft
- interior magnet
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/60—Shafts
- F05D2240/61—Hollow
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a full-coated corrosion resistant magnetic pump shaft with an inner magnetic steel sealing device. The pump shaft comprises a pump shaft, an inner magnetic steel and a gland cap, wherein the pump shaft is provided with a center hole, a metal core and a shaft shoulder; external threads are arranged at the two ends of the pump shaft; a polyether-ether-ketone injection molding coating layer is arranged on the whole surface of the hollow metal core of the pump shaft; an annular step bonded with the shaft shoulder of the pump shaft is arranged at the left side of the inner magnetic steel; a groove is formed in the right side of the inner magnetic steel; the gland cap is provided with an internal thread fitting an external thread box on the pump shaft; and the external threads at the ends of the pump shaft tightly fit the internal thread on the gland cap. The polyether-ether-ketone injection molding coating layer is arranged on the whole surface of the hollow metal core of the pump shaft for totally coating the pump shaft to prevent the permeation of a corrosion medium, so that the service life of the pump shaft is prolonged; and the inner magnetic steel is butted and sealed by the shaft shoulder and the gland cap at the two ends of the pump shaft for giving pressure, so that the corrosion resistance and the sealing function of the pump shaft are realized.
Description
Technical field
The present invention relates to one in a big way, specifically a kind of complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement.
Background technique
Magnetic drive pump is owing to having hermetically sealed, No leakage, the feature such as corrosion-resistant, and current application area is more and more wider, especially at chemical field, often in order to carry chemical liquid.Simultaneously owing to carrying chemical liquid for a long time, working life considerable influence is brought to each parts of magnetic drive pump contact corrosion liquid, especially the pump shaft of critical component, operationally bearing strength is very large, temperature is higher, meet erosion-resisting requirement again simultaneously, usual employing pottery pump shaft, because mechanical strength is very low, can only be that small size magnetic pump is used, and select the pump shaft intensity of High Nickel Steel to meet the demands, but due to work under bad environment, working life is very short, become the life-span short slab of each parts in magnetic drive pump, and change pump shaft and not only increase director costs, the more important thing is and have impact on production process, usually to experience to shut down several times between each overhaul and change pump shaft, indirect economic loss is very large, the interior magnet steel of plastic magnetic force pump, often be immersed in chemical mediator, the interior magnet steel of plastic magnetic force pump is a metalwork, can not be erosion-resisting, interior magnet steel needs wall coating plastic, meet corrosion resistant requirement, because the endoporus of interior magnet steel can not by plastic overmold, therefore need to take measures to seal.
Summary of the invention
The object of the present invention is to provide a kind of complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technological scheme:
A kind of complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement, comprise pump shaft, interior magnet steel and gland cap, described pump shaft is provided with center hole, metal-cored and the shaft shoulder, described pump shaft two ends are provided with outside thread, the metal-cored all surfaces of described pump shaft hollow is provided with polyether-ether-ketone injection moulding coating, described interior magnetic steel sleeve is located at outside pump shaft, the left side of described interior magnet steel is provided with the ring-shaped step fitted with the shaft shoulder of pump shaft, the right side of described interior magnet steel is provided with groove, described gland cap is provided with the internal thread that the outside thread case that is provided with pump shaft coordinates, the internal thread secure fit that the outside thread of described pump shaft end and gland cap are provided with, after the internal thread of described gland cap and the outside thread secure fit of pump shaft, fit in the end face of gland cap and the right side of interior magnet steel, the height of described gland cap is higher than the height of groove, the height of the described pump shaft shaft shoulder is higher than the height of interior magnet steel ring-shaped step.
As the further scheme of the present invention: described metal-cored employing No. 45 steel castings.
As the present invention's further scheme: described ring-shaped step is provided with O RunddichtringO.
As the present invention's further scheme: be provided with seal ring in described groove.
Compared with prior art, the invention has the beneficial effects as follows: the metal-cored all surfaces of pump shaft hollow of the present invention scribbles polyether-ether-ketone injection moulding coating, and pump shaft is completely coated, has stopped the infiltration of aggressive medium, thus has improve the pump shaft life-span; By interior magnetic steel sleeve is located at outside pump shaft, the sealing that offsets is carried out by the shaft shoulder and the internal magnet steel of gland cap respectively in the two ends of pump shaft, give pressure, adopt the method for screwed tight simultaneously, increase the bearing torque of pump shaft, prevent the interior magnet steel be immersed in chemical mediator to be corroded simultaneously, achieve the anticorrosive and sealing function of magnetic drive pump and pump shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of the complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement.
In figure: pump shaft 1, center hole 2, polyether-ether-ketone injection moulding coating 3, metal-cored 4, the shaft shoulder 5, ring-shaped step 6,0 RunddichtringO 7, interior magnet steel 8, groove 9, seal ring 10, gland cap 11, left side 12, right side 13, outside thread 14, internal thread 15.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement, comprise pump shaft 1, interior magnet steel 8 and gland cap 11, described pump shaft 1 is provided with center hole 2, metal-cored 4, keyway and the shaft shoulder 5, described pump shaft 1 two ends are provided with outside thread 14, described pump shaft 1 hollow metal-cored 4 all surfaces be provided with polyether-ether-ketone injection moulding coating 3, metal-cored 4 completely coated by pump shaft 1 of described polyether-ether-ketone injection moulding coating 3, because polyether-ether-ketone injection moulding coating 3 is that integrated injection molding is formed, there is not seam, stop the infiltration of aggressive medium, thus further increase pump shaft 1 life-span, described metal-cored 4 adopt No. 45 steel castings, described interior magnet steel 8 is set in outside pump shaft 1, the left side 12 of described interior magnet steel 8 is provided with the ring-shaped step 6 fitted with the shaft shoulder 5 of pump shaft 1, the right side 13 of described interior magnet steel 8 is provided with groove 9, described gland cap 11 is provided with the internal thread 15 that the outside thread that is provided with pump shaft 1 coordinates for 14 casees, internal thread 15 secure fit that the outside thread 14 of described pump shaft 1 end and gland cap 11 are provided with, after the internal thread 15 of described gland cap 11 and outside thread 14 secure fit of pump shaft, fit in the end face of gland cap 11 and the right side 13 of interior magnet steel 8, the height of described gland cap 4 is higher than the height of groove 9, the height of the described pump shaft shaft shoulder 5 is higher than the height of interior magnet steel ring-shaped step 6, described ring-shaped step 6 is provided with 0 RunddichtringO 7, seal ring 10 is provided with in described groove 9.
Pump shaft 1 hollow of the present invention metal-cored 4 all surfaces scribble polyether-ether-ketone injection moulding coating 3, metal-cored 4 completely coated by pump shaft 1 hollow, polyether-ether-ketone injection moulding coating 3 is that integrated injection molding is formed, there is not seam, stop the infiltration of aggressive medium, thus improve pump shaft 1 life-span, by interior magnet steel 8 is set in outside pump shaft 1, because the two ends of pump shaft 1 to be offseted sealing to interior magnet steel 8 by the shaft shoulder 5 and gland cap 11 respectively, give pressure, adopt the method for screwed tight simultaneously, increase the bearing torque of pump shaft 1, prevent the interior magnet steel 8 be immersed in chemical mediator to be corroded simultaneously, achieve the anticorrosive and sealing function of magnetic drive pump and pump shaft.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (4)
1. the complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement, comprise pump shaft (1), interior magnet steel (8) and gland cap (11), it is characterized in that, described pump shaft (1) is provided with center hole (2), metal-cored (4) and the shaft shoulder (5), described pump shaft (1) two ends are provided with outside thread (14), the all surfaces of metal-cored (4) of described pump shaft (1) hollow is provided with polyether-ether-ketone injection moulding coating (3), described interior magnet steel (8) is set in pump shaft (1) outward, the left side (12) of described interior magnet steel (8) is provided with the ring-shaped step (6) fitted with the shaft shoulder of pump shaft (1) (5), the right side (13) of described interior magnet steel (8) is provided with groove (9), described gland cap (11) is provided with the internal thread (15) that outside thread (14) case that is provided with pump shaft (1) coordinates, internal thread (15) secure fit that the outside thread (14) of described pump shaft (1) end and gland cap (11) are provided with, after the internal thread (15) of described gland cap (11) and outside thread (14) secure fit of pump shaft, fit in the end face of gland cap (11) and the right side (13) of interior magnet steel (8), the height of described gland cap (4) is higher than the height of groove (9), the height of the described pump shaft shaft shoulder (5) is higher than the height of interior magnet steel ring-shaped step (6).
2. the complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement according to claim 1, is characterized in that, described metal-cored (4) adopt No. 45 steel castings.
3. the complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement according to claim 1, it is characterized in that, described ring-shaped step (6) is provided with O RunddichtringO (7).
4. the complete coated corrosion-resistant magnetic drive pump pump shaft with interior magnet steel seal arrangement according to claim 1, is characterized in that, be provided with seal ring (10) in described groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492696.4A CN104405676A (en) | 2014-09-24 | 2014-09-24 | Pump spindle used for full-coated corrosion-resisting magnetic pump and provided with inner magnetic steel sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492696.4A CN104405676A (en) | 2014-09-24 | 2014-09-24 | Pump spindle used for full-coated corrosion-resisting magnetic pump and provided with inner magnetic steel sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405676A true CN104405676A (en) | 2015-03-11 |
Family
ID=52643330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410492696.4A Pending CN104405676A (en) | 2014-09-24 | 2014-09-24 | Pump spindle used for full-coated corrosion-resisting magnetic pump and provided with inner magnetic steel sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405676A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108698197A (en) * | 2017-01-31 | 2018-10-23 | 株式会社霍塔尼 | Roll shaft and brush roll for brush roll |
-
2014
- 2014-09-24 CN CN201410492696.4A patent/CN104405676A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108698197A (en) * | 2017-01-31 | 2018-10-23 | 株式会社霍塔尼 | Roll shaft and brush roll for brush roll |
| CN108698197B (en) * | 2017-01-31 | 2021-07-30 | 株式会社霍塔尼 | Roller shaft for a brush roller and brush roller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104295523A (en) | Fully-coated anti-corrosion magnetic pump shaft with impeller capable of being locked in a dual mode | |
| US20110193292A1 (en) | Magnetic fluid sealing and packing ring sealing device for reciprocating shaft with the packing ring having three oblique mouths | |
| CN104315149A (en) | Dynamic sealing structure resistant to high temperature and high pressure | |
| US20110210520A1 (en) | Reciprocating shaft's sealing device with both magnetic fluid seal and c-type slip ring seal | |
| CN105864537A (en) | Novel flange seal washer | |
| CN203926764U (en) | A kind of seal ring | |
| CN104405676A (en) | Pump spindle used for full-coated corrosion-resisting magnetic pump and provided with inner magnetic steel sealing device | |
| CN104676009A (en) | Teflon framework oil seal with automatic compensation function | |
| CN205101581U (en) | Inserted valve holder structure of double sealing for valve | |
| CN202007912U (en) | Check valve and container | |
| CN204164528U (en) | A kind of welding type pipe fitting joint applying single lip sealing ring | |
| CN201310485Y (en) | Mechanical seal of IFB phenolic aldehyde glass fiber centrifugal pump | |
| CN204025668U (en) | For the slim adsorption type seal ring without the sealing of groove flange face | |
| CN202468418U (en) | Novel inner magnetic rotor of anti-corrosion plastic magnetic pump | |
| CN204159396U (en) | A kind of cement grinding mill slip ring structure | |
| CN204533535U (en) | A kind of polytetrafluoroethylreinforced reinforced seal with automatic compensation function | |
| CN105114354B (en) | Desulfurization pump mechanical sealing | |
| CN204004391U (en) | Sealing washer of well head | |
| CN203926118U (en) | A kind of water pump gland with flow guide sleeve | |
| CN203051506U (en) | Three-point-contact sealing bearing | |
| CN204403127U (en) | Sealing pivoting support in a kind of | |
| CN205136628U (en) | Circular arc sealing sleeve governing valve | |
| CN102889289A (en) | Anti-abrasion sealing nut | |
| CN207405574U (en) | A kind of embedded waterproof hinged-support for hydraulic movable dam | |
| CN208487212U (en) | A kind of mechanically-sealing apparatus being able to bear strong corrosion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
|
| WD01 | Invention patent application deemed withdrawn after publication |