CN2031454U - Binding magnetism-driven pump. - Google Patents
Binding magnetism-driven pump. Download PDFInfo
- Publication number
- CN2031454U CN2031454U CN 88219083 CN88219083U CN2031454U CN 2031454 U CN2031454 U CN 2031454U CN 88219083 CN88219083 CN 88219083 CN 88219083 U CN88219083 U CN 88219083U CN 2031454 U CN2031454 U CN 2031454U
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- pillow block
- magnet rotor
- binding
- 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.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a binding magnetism-driven pump used for electrolyzing and polishing a metallographic specimen, electrolytic thinning instruments, and delivering the corrosion fluid. The binding magnetism-driven pump adopts positive placed pump body with a binding hole, and has a magnet rotor with a pillow block. The pillow block of the magnet rotor is positioned on binding hole at the bottom of the pump body cavity, supported and by a hole wall, and the rotation of the pillow block is bound by the hole wall. The structure can overcome the phenomenon that the magnetic force driving pump makes the rotor bounced and caused by the low precision product or low precision assembly; the rotor can start agilely, and has a stable operation.
Description
The present invention relates to a kind of constraint formula magnetic force driving pump that metallographic specimen electropolishing instrument and transmission electron microscope metallic thin film sample electrolysis attenuate instrument and other corrosive liquids are carried that is mainly used in.
Present used magnetic force driving pump, its magnet rotor is placed in the pump chamber, by base plane supporting rotation.Owing to reasons such as manufacturing or assembly precisions, rotor is subject to magnet steel center of rotation beat and rotates nonsynchronous influence, and the moving or jumping phenomena of string usually can take place, and makes pump starting difficulty and running unstable.
Purpose of the present invention is exactly that a kind of rotor string that can overcome existing magnetic drive pump of design is jumped phenomenon, starts constraint formula magnetic force driving pump nimble and that running is stable.
The drive unit of constraint formula magnetic force driving pump is made up of motor 24, magnet steel 22 and magnet rotor 2.Pump then is made up of the pump housing 1, pump cover 3 and shower nozzle 4.The pump housing 1, pump cover 3 and nozzle 5 all use anti-corrosion non-magnetic material to make.The pump housing 1 adopts the positively fixed type structure, and the pump chamber bottom centre of the pump housing has constrained port 32.There is a garden axis of a cylinder platform 31 at the middle part of magnet rotor 2, and the plumber block 31 of magnet rotor 2 is shelved on the constrained port 32, supports and retrain its rotation by hole wall.Shower nozzle 4 or other liquid-transport pipe-line are housed on the pump cover 3.Pump cover 3 usefulness screws connect with the pump housing 1.The center of pump cover 3 also has liquid return hole 33.
According to the usage requirement of pump, the pump chamber inside diameter D of the pump housing 1
1, pump chamber base thickness that is constrained port 32 pore wall thickness B, the outside diameter d of magnet rotor 2
1, rotor length overall 1, all can determine etc. parameter by design.If the diameter of constrained port 32 is D
2, magnet rotor 2 the external diameter of plumber block 31 be d
2, the garden column length of pillow block 31 is l
1, in order to meet constraint conditio and to guarantee that the rotation of rotor 2 is nimble, dimension D
2, d
2And l
2With d
1, must satisfy equation (1), (2) simultaneously between the B
d
2≥d
1＋2B （1）
D
2 2-l
2 2≤ 1/2 (d
2 2-d
2 1) the diameter D of (2) constrained port 32
2Big more, pillow block 31 outside diameter d of magnet rotor 2
2Big more and length l
2Long more, the rotation of rotor 2 is stable more.But D generally speaking,
2Should not be greater than the intracavity diameter D of the pump housing 1
11/3rd.The length l of pillow block 32
2Desirable and pillow block outside diameter d
2Equate.So diameter d when magnet rotor 2
1, after pump chamber base thickness B design determines, the diameter D of constrained port 32
2And pillow block 31 outside diameter d of magnet rotor 2
2And length l
2All can determine.The diameter of the return port 33 on the pump cover 3 generally is slightly larger than the diameter D of constrained port 32
2
Pump of the present invention is placed in the container 7 that fills liquid, places the top of magnetic driving equipment.When motor 24 drove 2 rotations of magnet steel 22 driving magnet rotors, liquid will pump through pipeline or shower nozzle 4.Because the rotation of magnet rotor 2 is subjected to the constraint of the pump housing 1 constrained port 32, just can overcome magnet steel 22 center of rotation beats and nonsynchronous influence.The magnetic force driving pump of this structure has characteristics such as the convenient and running of starting is stable.
Description of drawings
Fig. 1 is the single spray of constraint formula magneto drive pump sectional drawing.
Fig. 2 is the two spray pump pump housing plan views of constraint formula magneto drive.
Fig. 3 is the two spray pump pump housing sectional drawings of constraint formula magneto drive.
Fig. 4 is the yi word pattern magnet rotor of tape spool platform.
Fig. 5 is the cross magnet rotor of tape spool platform.
Fig. 6 is the transmission electron microscope metallic thin film specimen preparation two spray pump sectional drawings of constraint formula magneto drive.
Fig. 7 is a conductor refrigeration electropolishing attenuate instrument sectional drawing.
Among the figure: 1. the pump housing 2. magnet rotors 3. pump covers 4. shower nozzles 5. thin-walled garden cylinders 6. light-sensitive elements 7. containers 8. refrigeration power supplys 9. upper box lids 10. radiators 11. conductor refrigeration piles 12. cold-trap trap mouths 13. sheet glass 14. cover plates 15. sample depression bars 16. specimen holders 17. sheet metal specimens 18 lighting sources 19. cold-trap trap cores 20. temperature measuring heads 21. are incubated 26. casees side plates of filler 22. magnet steel, 23. trap core supporting plate 24. motors, 25. dividing plates, 27. nowel shells, 28. electric machine speed regulation power supplys, 29. base plates, 30. footing, 31 pillow blocks, 32. constrained ports, 33. return ports
Embodiments of the invention
Fig. 7 is for the cold-trap of conductor refrigeration electropolishing attenuate instrument and be placed in magneto drive twin-jet electropolishing attenuate device in the cold-trap.Two sprays of electrolytic solution are then supplied with by constraint formula magnetic force driving pump.
The semiconductor cold-trap is made up of cold-trap trap core 19, conductor refrigeration pile 11, radiator 10, temperature measuring head 20, cold-trap trap mouth 12 etc.Cold-trap trap core 19 can be made by magnetism-free stainless steel or aluminium.The trap outer core connects negative electrode.It is BZT that conductor refrigeration pile 11 can be selected model for use
3-11,722 three grades of refrigerating elements.Radiator 10 is a water tank.Temperature measuring head 20 is a thermistor.
The motor 24 optional ND-D stepless change reversible electric machines that magnetic driving equipment is used.Magnet steel 22 is a permanent magnet, and it is fixed on the axle of motor 24.Magnet rotor 2 is the magnetic stirrer of cross tape spool platform.Container 7 is the non-magnetic rustproof steel bowl, and interior Sheng electrolytic solution, thin-walled garden tube 5 entangle two spray attenuate devices.The attenuate device is put into container 7 backs and is covered with cover plate 14.Specimen holder 16 is installed in the saddle groove of two shower nozzles 4, pushes down with the sample depression bar 15 that connects anode.When motor 24 drove magnet steel 22 rotations, constraint formula magnetic drive pump just sprayed the electrolytic solution in the container 7 from two apertures of two shower nozzles, be mapped on the sample 17 that is thinned.After connecting the polishing power supply, can carry out the final attenuate of transmission electron microscope metallic thin film sample.The pump housing 1, pump cover 3, shower nozzle 4, thin-walled garden tube 5, cover plate 14, specimen holder etc. are all used the manufacturing of anti-corrosion PVC plastics.
Twin-jet electropolishing attenuate device is taken out from cold-trap, put single spray pump as shown in Figure 1 into, cover plate 14 in thin-walled garden tube 5 changes the sample pallet that has fenestra into, put polished metallographic specimen on the fenestra, and push down with depression bar 15, the electrolytic solution that starts in the magneto drive pump receptacle just is ejected on the polished surface of metallographic specimen from shower nozzle 4, just can carry out the jet-type electropolishing of metallographic specimen behind the connection polishing power supply.
Claims (1)
1, a kind of constraint formula magnetic force driving pump that is mainly used in metallographic specimen electropolishing instrument and transmission electron microscope metallic film sample electrolysis attenuate instrument and corrosive liquids conveying, it mainly is made up of the pump housing 1, pump cover 3, magnet rotor 2, shower nozzle 4 and drive unit, it is characterized in that:
A. there is a garden axis of a cylinder platform 31 at the middle part of magnet rotor 2, and pillow block length is 1
2, the pillow block external diameter is d
2
B. the pump housing 1 bottom centre is processed with a constrained port 32, and its aperture is D
2, pore wall thickness is B;
C. the diameter when magnet rotor is d
1, the outside diameter d of rotor plumber block 31
2With pillow block long 1
2, with the aperture D of constrained port 32
2, the size relationship between the thick B of hole wall, satisfy equation (1), (2) simultaneously:
d
2≥d
1+2B (1)
D
2 2-1
2 2≤ 1/2 (d
2 2-d
2 1) (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88219083 CN2031454U (en) | 1988-05-21 | 1988-05-21 | Binding magnetism-driven pump. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88219083 CN2031454U (en) | 1988-05-21 | 1988-05-21 | Binding magnetism-driven pump. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2031454U true CN2031454U (en) | 1989-01-25 |
Family
ID=4851465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88219083 Withdrawn CN2031454U (en) | 1988-05-21 | 1988-05-21 | Binding magnetism-driven pump. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2031454U (en) |
-
1988
- 1988-05-21 CN CN 88219083 patent/CN2031454U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |