CN111054254A - Dual-output magnetic stirring mechanism and stirrer - Google Patents
Dual-output magnetic stirring mechanism and stirrer Download PDFInfo
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- CN111054254A CN111054254A CN202010041835.7A CN202010041835A CN111054254A CN 111054254 A CN111054254 A CN 111054254A CN 202010041835 A CN202010041835 A CN 202010041835A CN 111054254 A CN111054254 A CN 111054254A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
- B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention discloses a double-output magnetic stirring mechanism and a stirrer, wherein the double-output magnetic stirring mechanism comprises a main magnetic stirring device and an auxiliary magnetic stirring device, the auxiliary magnetic stirring device comprises an auxiliary speed reducing motor, an auxiliary magnetic supporting shell, an auxiliary stirring sealing cover body, an auxiliary stirring outer magnetic steel body and an auxiliary stirring inner magnetic steel body, the auxiliary stirring sealing cover body is fixedly connected with the main magnetic supporting shell, the auxiliary stirring inner magnetic steel body is of a hollow structure, the auxiliary stirring inner magnetic steel body is supported in the auxiliary stirring sealing cover body through a bearing, and a supporting bearing is arranged between the main stirring shaft and the auxiliary stirring inner magnetic steel body; the double-magnetic stirrer comprises a double-output magnetic stirring mechanism, a tank body, an outer stirring shaft and a second coupler, wherein the upper part of the tank body is fixedly connected with the lower part of the auxiliary stirring sealing cover body. The invention adopts a coaxial double-magnetic stirring mechanism, has long service life of the machine under the condition of keeping the advantages of static sealing effect and low noise, and solves the problem of full stirring in high-temperature and high-pressure occasions in chemical production.
Description
Technical Field
The invention relates to the technical field of magnetic stirrers, in particular to a double-output magnetic stirring mechanism and a stirrer.
Background
In the chemical field, the magnetic stirrer has superior static sealing performance compared with a mechanical stirrer, so that the magnetic stirrer is widely used in chemical equipment such as a high-temperature high-pressure stirring tank, a reaction kettle and the like; meanwhile, the magnetic stirrer is also another advantage over mechanical stirring due to low noise and high coaxiality.
In chemical equipment such as similar agitator tank, reation kettle, the (mixing) shaft is rotatory at hundreds to thousands of revolutions usually, sets up the limited stirring vane of spoke on the axle, though the high-speed rotation of blade can play better dispersion or stirring effect, nevertheless still is difficult to compromise to the material of whole agitator tank especially the material that is close to the jar wall, especially hardly reaches even stirring effect when jar body diameter is great. Therefore, a plurality of layers of stirring blades with different radiuses are arranged on one stirring shaft, but the short stirring blades cannot give consideration to the radial range of materials, and the long stirring blades cause the increase of running resistance and poor effect; in addition, even if the stirring blade is large, the through shaft rotates at a high speed, so that the thick materials can integrally rotate, and the effect of central stirring is weakened.
In order to solve the problems, a plurality of reaction kettles are additionally provided with a multi-shaft stirring mechanism, but the reaction kettles have complicated structures and are not beneficial to sealing. Based on the mechanical stirring principle, a coaxial double-mechanical transmission structure can be adopted, but the structure is still in dynamic sealing, and the pressure in the tank cannot exceed 1.5 MPa; is difficult to be suitable for general chemical engineering application; in addition, the outer transmission generally adopts an outer motor to drive an outer shaft to rotate through a belt, and the outer transmission has great lateral force to a shaft, so that the operation noise is high, the speed cannot be high, and the outer transmission is easy to damage after a long time; in addition, the belt enters the shell, so that the sealing property in the cavity is difficult to guarantee, and the belt cannot be used in the high-temperature and high-pressure stirring chemical field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a double-output magnetic stirring mechanism with a reasonable structure.
The technical scheme for solving the technical problems is as follows: a double-output magnetic stirring mechanism comprises a main magnetic stirring device, wherein the main magnetic stirring device comprises a main speed reducing motor, a main magnetic bearing shell, a main stirring sealing cover body, a main magnetic steel shaft and a main stirring shaft, the main speed reducing motor is fixedly connected with the upper end of the main magnetic bearing shell, the upper end of the main magnetic steel shaft is supported in the main stirring sealing cover body through a first supporting bearing, the lower end of the main magnetic steel shaft is fixedly connected with the upper end of the main stirring shaft, and a second supporting bearing is arranged between the main stirring shaft and the main stirring sealing cover body;
the auxiliary magnetic stirring device comprises an auxiliary speed reduction motor, an auxiliary magnetic supporting shell, an auxiliary stirring sealing cover body, an auxiliary stirring outer magnetic steel body and an auxiliary stirring inner magnetic steel body, wherein the upper end of the auxiliary stirring sealing cover body is fixedly connected with the lower end of the main magnetic supporting shell, the auxiliary stirring inner magnetic steel body is of a hollow structure, the auxiliary stirring inner magnetic steel body is supported in the auxiliary stirring sealing cover body through a third supporting bearing, the main stirring shaft penetrates through the auxiliary stirring inner magnetic steel body, and a fourth supporting bearing is arranged between the main stirring shaft and the auxiliary stirring inner magnetic steel body;
the auxiliary magnetic force supporting shell is arranged outside the auxiliary stirring external magnetic steel body and is fixedly connected with the auxiliary stirring sealing cover body, the auxiliary stirring external magnetic steel body is supported in the auxiliary magnetic force supporting shell through a fifth supporting bearing, and a gear ring is sleeved on the upper part of the auxiliary stirring external magnetic steel body;
the auxiliary speed reducing motor is fixed on the outer side of the outer magnetic force bearing shell, a driving gear is arranged on an output shaft of the auxiliary speed reducing motor, and the driving gear is meshed with the gear ring.
The invention has the beneficial effects that: 1. the coaxial double-magnetic stirring mechanism is adopted, the static sealing effect is still kept, the noise is low, the service life is long, and the problem of full stirring in high-temperature and high-pressure occasions in chemical production is solved; 2. the inner speed and the outer speed can be different, and the speed of the general inner blade is high, so that the stirring, shearing and dispersing effects are realized; the external stirring frame has low speed, plays a role in slowly stirring materials and scraping walls, and can ensure that the materials are stirred uniformly as a whole; 3. the inner stirring blades are small and have strong shearing force, and the outer stirring blades can adopt a vertical rod sheet form; the inner part and the outer part can be turned differently, or the reversing in operation is realized.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the auxiliary stirring sealing cover body comprises an auxiliary connecting disc at the lower end, the auxiliary magnetic bearing shell is fixedly connected to the auxiliary connecting disc, and an auxiliary speed reduction motor bearing seat is arranged on the outer side of the auxiliary magnetic bearing shell.
The auxiliary magnetic bearing shell has the advantages that the auxiliary connecting disc is connected with the auxiliary magnetic bearing shell, so that the structure is stable, and the concentricity is good.
Furthermore, the third support bearing and the fifth support bearing respectively comprise an upper set and a lower set, and both the upper set and the lower set are deep groove ball bearings.
The beneficial effect of adopting the above-mentioned further scheme is, guarantee operating stability.
Further, the upper end and the lower end of the auxiliary stirring inner magnetic steel body are respectively provided with a bearing pressing plate, and the upper end of the auxiliary magnetic bearing shell is provided with a cover plate.
The beneficial effect who adopts above-mentioned further scheme is, guarantees the leakproofness of bearing.
Furthermore, an inner sealing top is arranged at the upper end of the main magnetic steel shaft, and the first supporting bearing is arranged in the inner sealing top.
The beneficial effect of adopting above-mentioned further scheme is that, sealed and the stable rotation of main magnet steel axle can be guaranteed to interior seal.
Furthermore, the main magnetic stirring device also comprises a main stirring outer magnetic steel body, the upper part of the main stirring outer magnetic steel body is connected with the output shaft of the speed reducing motor through a first coupler, and the main stirring outer magnetic steel body is supported in the main magnetic supporting shell through a sixth supporting bearing.
Adopt above-mentioned further scheme's beneficial effect to be, adopt the shaft coupling to dismantle conveniently.
Furthermore, the lower end of the main stirring sealing cover body is provided with a main connecting disc, and the main connecting disc is connected with the main magnetic force supporting shell and the auxiliary stirring sealing cover body in a sealing manner.
Adopt above-mentioned further scheme's beneficial effect to be, adopt the convenient flange joint between the top and bottom of main connection pad, the dismouting of being convenient for.
Furthermore, a spindle head is arranged at the upper end of the main magnetic steel shaft, and the first support bearing is sleeved on the spindle head.
The main magnetic steel shaft supported by the shaft head has the beneficial effect of reasonable structure.
The invention also discloses a magnetic stirrer with a good stirring effect. The double-magnetic stirrer is characterized by comprising the double-output magnetic stirring mechanism, a tank body, an outer stirring shaft and a second coupler, wherein the upper part of the tank body is fixedly connected with the lower part of the auxiliary stirring sealing cover body.
The stirring device further comprises an outer stirring frame and an inner stirring blade, wherein the outer stirring frame is fixedly connected with the outer stirring shaft, and the inner stirring blade is connected with the second coupler through an inner shaft in the tank.
The invention has the beneficial effects that: by adopting the coaxial double-magnetic stirring mechanism, the machine has long service life under the conditions of keeping the advantages of static sealing effect and low noise, and solves the problem of full stirring in high-temperature and high-pressure occasions in chemical production.
Drawings
FIG. 1 is a schematic view of a dual output magnetic stirring mechanism of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B of FIG. 1;
FIG. 4 is a schematic view of the structure of the dual magnetic stirrer of the present invention.
In fig. 1 to 4, 1, a main reduction motor; 2. a main magnetic bearing housing; 3. a main stirring sealing cover body; 4. a main magnetic steel shaft; 5. a main stirring shaft; 6. a first support bearing; 7. a second support bearing; 8. An auxiliary reduction motor; 9. an auxiliary magnetic bearing housing; 10. auxiliary stirring sealing cover body; 11. stirring the outer magnet body; 12. stirring the internal magnetic steel body; 13. a third support bearing; 14. a fourth support bearing; 15. a fifth support bearing; 16. a ring gear; 17. a drive gear; 18. the lower end is provided with an auxiliary connecting disc; 19. an auxiliary speed reducing motor supporting seat; 20. a bearing pressure plate; 21. a cover plate; 22. internally capping; 23. mainly stirring the outer magnetic steel body; 24. A first coupling; 25. a sixth support bearing; 26. a main connecting disc; 27. a shaft head; 28. a tank body; 29. An outer stirring shaft; 30. a second coupling; 31. an outer stirring frame; 32. and an inner stirring blade.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-3, a dual-output magnetic stirring mechanism comprises a main magnetic stirring device, wherein the main magnetic stirring device comprises a main speed-reducing motor 1, a main magnetic bearing housing 2, a main stirring sealing cover 3, a main magnetic steel shaft 4 and a main stirring shaft 5, the main speed-reducing motor is fixedly connected with the upper end of the main magnetic bearing housing, the upper end of the main magnetic steel shaft is supported in the main stirring sealing cover through a first supporting bearing 6, the lower end of the main magnetic steel shaft is fixedly connected with the upper end of the main stirring shaft, and a second supporting bearing 7 is arranged between the main stirring shaft and the main stirring sealing cover;
the auxiliary magnetic stirring device comprises an auxiliary speed reduction motor 8, an auxiliary magnetic supporting shell 9, an auxiliary stirring sealing cover body 10, an auxiliary stirring outer magnetic steel body 11 and an auxiliary stirring inner magnetic steel body 12, wherein the upper end of the auxiliary stirring sealing cover body is fixedly connected with the lower end of the main magnetic supporting shell, the auxiliary stirring inner magnetic steel body is of a hollow structure, the auxiliary stirring inner magnetic steel body is supported in the auxiliary stirring sealing cover body through a third supporting bearing 13, the main stirring shaft penetrates through the auxiliary stirring inner magnetic steel body, and a fourth supporting bearing 14 is arranged between the main stirring shaft and the auxiliary stirring inner magnetic steel body;
the auxiliary magnetic force supporting shell 9 is arranged outside the auxiliary stirring external magnetic steel body and is fixedly connected with the auxiliary stirring sealing cover body, the auxiliary stirring external magnetic steel body is supported in the auxiliary magnetic force supporting shell through a fifth supporting bearing 15, and a gear ring 16 is sleeved on the upper part of the auxiliary stirring external magnetic steel body;
the auxiliary speed reducing motor is fixed on the outer side of the outer magnetic force bearing shell, a driving gear 17 is arranged on an output shaft of the auxiliary speed reducing motor, and the driving gear 17 is meshed with the gear ring 16.
The auxiliary stirring sealing cover body comprises an auxiliary connecting disc 18 at the lower end, the auxiliary magnetic bearing shell is fixedly connected to the auxiliary connecting disc, and an auxiliary speed reduction motor bearing seat 19 is arranged on the outer side of the auxiliary magnetic bearing shell.
The third support bearing 13 and the fifth support bearing 15 respectively comprise an upper set and a lower set, and both the upper set and the lower set are deep groove ball bearings.
And the upper end and the lower end of the auxiliary stirring inner magnetic steel body are respectively provided with a bearing pressing plate 20, and the upper end of the auxiliary magnetic bearing shell is provided with a cover plate 21.
The upper end of the main magnetic steel shaft is provided with an inner seal top 22, and the first supporting bearing 6 is arranged in the inner seal top.
The main magnetic stirring device further comprises a main stirring outer magnetic steel body 23, the upper part of the main stirring outer magnetic steel body is connected with the output shaft of the speed reducing motor through a first coupler 24, and the main stirring outer magnetic steel body is supported in the main magnetic supporting shell through a sixth supporting bearing 25.
The lower end of the main stirring sealing cover body is provided with a main connecting disc 26 which is connected with the main magnetic force supporting shell and the auxiliary stirring sealing cover body in a sealing way.
The upper end of the main magnetic steel shaft 4 is provided with a shaft head 27, and the first supporting bearing is sleeved on the shaft head.
As shown in FIG. 4, the invention also discloses a magnetic stirrer with good stirring effect. A double-magnetic stirrer comprises the double-output magnetic stirring mechanism, a tank body 28, an outer stirring shaft 29 and a second coupler 30, wherein the upper part of the tank body is fixedly connected with the lower part of an auxiliary stirring sealing cover body.
The stirring device also comprises an outer stirring frame 31 and an inner stirring blade 32, wherein the outer stirring frame is fixedly connected with the outer stirring shaft, and the inner stirring blade is connected with the second coupler through an inner shaft of the tank.
By adopting the coaxial double-magnetic stirring mechanism, the machine has long service life under the conditions of keeping the advantages of static sealing effect and low noise, and solves the problem of full stirring in high-temperature and high-pressure occasions in chemical production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A double-output magnetic stirring mechanism comprises a main magnetic stirring device, wherein the main magnetic stirring device comprises a main speed reducing motor (1), a main magnetic bearing shell (2), a main stirring sealing cover body (3), a main magnetic steel shaft (4) and a main stirring shaft (5), the main speed reducing motor is fixedly connected with the upper end of the main magnetic bearing shell, the upper end of the main magnetic steel shaft is supported in the main stirring sealing cover body through a first supporting bearing (6), the lower end of the main magnetic steel shaft is fixedly connected with the upper end of the main stirring shaft, and a second supporting bearing (7) is arranged between the main stirring shaft and the main stirring sealing cover body;
the auxiliary magnetic stirring device is characterized by further comprising an auxiliary magnetic stirring device, wherein the auxiliary magnetic stirring device comprises an auxiliary speed reducing motor (8), an auxiliary magnetic bearing shell (9), an auxiliary stirring sealing cover body (10), an auxiliary stirring outer magnetic steel body (11) and an auxiliary stirring inner magnetic steel body (12), the upper end of the auxiliary stirring sealing cover body is fixedly connected with the lower end of the main magnetic bearing shell, the auxiliary stirring inner magnetic steel body is of a hollow structure, the auxiliary stirring inner magnetic steel body is supported in the auxiliary stirring sealing cover body through a third supporting bearing (13), the main stirring shaft penetrates through the auxiliary stirring inner magnetic steel body, and a fourth supporting bearing (14) is arranged between the main stirring shaft and the auxiliary stirring inner magnetic steel body;
the auxiliary magnetic force supporting shell (9) is arranged outside the auxiliary stirring external magnetic steel body and is fixedly connected with the auxiliary stirring sealing cover body, the auxiliary stirring external magnetic steel body is supported in the auxiliary magnetic force supporting shell through a fifth supporting bearing (15), and a gear ring (16) is sleeved on the upper part of the auxiliary stirring external magnetic steel body;
the auxiliary speed reducing motor is fixed on the outer side of the outer magnetic force supporting shell, a driving gear (17) is arranged on an output shaft of the auxiliary speed reducing motor, and the driving gear (17) is meshed with the gear ring (16).
2. The dual-output magnetic stirring mechanism of claim 1, wherein the auxiliary stirring sealing cover body comprises a lower auxiliary connecting plate (18), the auxiliary magnetic supporting shell is fixedly connected to the auxiliary connecting plate, and an auxiliary speed reducing motor supporting seat (19) is arranged outside the auxiliary magnetic supporting shell.
3. The dual-output magnetic stirring mechanism of claim 1 or 2, wherein the third support bearing (13) and the fifth support bearing (15) respectively comprise an upper set and a lower set, and both are deep groove ball bearings.
4. The dual-output magnetic stirring mechanism of claim 1 or 2, wherein the auxiliary stirring inner magnetic steel body is provided with bearing pressing plates (20) at the upper end and the lower end respectively, and the auxiliary magnetic supporting shell is provided with a cover plate (21) at the upper end.
5. The dual output magnetic stirring mechanism of claim 5, wherein the main magnetic steel shaft is provided with an inner cap (22) at its upper end, and the first support bearing (6) is provided in the inner cap.
6. The dual-output magnetic stirring mechanism of claim 6, wherein the main magnetic stirring device further comprises a main stirring outer magnetic steel body (23), the upper part of the main stirring outer magnetic steel body is connected to the output shaft of the speed reduction motor through a first coupling (24), and the main stirring outer magnetic steel body is supported in the main magnetic supporting shell through a sixth supporting bearing (25).
7. The dual output magnetic stirring mechanism of claim 1 or 2, wherein the main stirring sealing enclosure is provided at its lower end with a main connecting pad (26) that connects the main magnetic bearing housing and the auxiliary stirring sealing enclosure in a closed manner.
8. The dual-output magnetic stirring mechanism of claim 1, wherein the main magnetic steel shaft (4) is provided with a shaft head (27) at the upper end, and the first supporting bearing is sleeved on the shaft head.
9. A double-magnetic stirrer is characterized by comprising the double-output magnetic stirring mechanism as claimed in any one of claims 1 to 8, and further comprising a tank body (28), an outer stirring shaft (29) and a second coupler (30), wherein the upper part of the tank body is fixedly connected with the lower part of the auxiliary stirring sealing cover body.
10. A twin magnetic stirrer as defined in claim 9 further comprising an outer stirring frame (31) fixedly connected to the outer stirring shaft and an inner stirring blade (32) connected to the second coupling via an internal tank shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041835.7A CN111054254A (en) | 2020-01-15 | 2020-01-15 | Dual-output magnetic stirring mechanism and stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041835.7A CN111054254A (en) | 2020-01-15 | 2020-01-15 | Dual-output magnetic stirring mechanism and stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111054254A true CN111054254A (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010041835.7A Pending CN111054254A (en) | 2020-01-15 | 2020-01-15 | Dual-output magnetic stirring mechanism and stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111054254A (en) |
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2020
- 2020-01-15 CN CN202010041835.7A patent/CN111054254A/en active Pending
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