CN111013469B - Axle sleeve-free full-suspension magnetic stirrer - Google Patents
Axle sleeve-free full-suspension magnetic stirrer Download PDFInfo
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- CN111013469B CN111013469B CN201911324263.7A CN201911324263A CN111013469B CN 111013469 B CN111013469 B CN 111013469B CN 201911324263 A CN201911324263 A CN 201911324263A CN 111013469 B CN111013469 B CN 111013469B
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- sleeve
- magnetic suspension
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- suspension sleeve
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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
Abstract
The invention discloses a shaft sleeve-free full-suspension magnetic stirrer which comprises a driving device, a speed reducer and an inner driving shaft, wherein a rack and a sealing sleeve are sequentially sleeved outside the inner driving shaft from bottom to top, and the sealing sleeve is connected with the rack through a welding chassis; a lower magnetic suspension sleeve, a driving magnetic cylinder and an upper magnetic suspension sleeve are sequentially sleeved outside the sealing sleeve from bottom to top, stirring blades are arranged outside the upper magnetic suspension sleeve, the driving magnetic cylinder and the lower magnetic suspension sleeve, and the upper ends of the stirring blades are fixed on a magnetic suspension positioning sleeve at the top end of the inner driving shaft; the inner walls of the lower inner magnetic suspension sleeve and the lower outer magnetic suspension sleeve are respectively provided with lower magnetic rings with opposite polarities; the inner walls of the upper inner magnetic suspension sleeve and the upper outer magnetic suspension sleeve are respectively provided with upper magnetic rings with opposite polarities; and magnets are arranged on the inner walls of the inner driving magnetic cylinder and the outer driving magnetic cylinder. The invention solves the problem that the magnetic stirring of the shaft sleeve generates abrasive dust to pollute the liquid medicine, has simple and durable structure, prolongs the service life of the stirrer and improves the stirring quality of the liquid medicine.
Description
Technical Field
The invention relates to the technical field of magnetic stirrers, in particular to a shaftless full-suspension magnetic stirrer.
Background
With the continuous improvement and deepening of the bio-pharmaceutical industry technology and the control of production cost, the application of a lower stirring device on a tank body is more and more extensive, the existing lower magnetic stirring has gradually replaced the mechanical stirring for many years, and becomes mainstream configuration, however, the existing lower magnetic stirring is mostly of foreign imported brands, and domestic manufacturers are few, and no matter whether the foreign brands or the domestic brands are adopted, the contact friction type design is mostly adopted, and both axial friction and radial friction exist, and the design has great damage to a male bearing and a female bearing of a lower magnetic stirring core component in daily use, so that the service life of stirring is greatly reduced, and due to the existence of bidirectional friction, more abrasive dust particles are generated, and the risk of bacterial contamination of liquid medicine materials in the tank body is greatly increased. For the above reasons, it is necessary to design a shaftless fully suspended magnetic stirrer.
Disclosure of Invention
The invention aims to provide a shaft sleeve-free full-suspension magnetic stirrer, which solves the problem that grinding dust generated by magnetic stirring of a shaft sleeve pollutes liquid medicine, has a simple and durable structure, prolongs the service life of the stirrer and improves the stirring quality of the liquid medicine.
In order to achieve the purpose, the invention provides a shaft sleeve-free full-suspension magnetic stirrer which comprises a driving device, a speed reducer connected with the driving device and an inner driving shaft connected with the speed reducer, wherein a rack and a sealing sleeve are sequentially sleeved outside the inner driving shaft from bottom to top, and the sealing sleeve is connected with the rack through a welding chassis;
a lower magnetic suspension sleeve, a driving magnetic cylinder and an upper magnetic suspension sleeve are sequentially sleeved outside the sealing sleeve from bottom to top, stirring blades are arranged outside the upper magnetic suspension sleeve, the driving magnetic cylinder and the lower magnetic suspension sleeve, and the upper ends of the stirring blades are fixed on a magnetic suspension positioning sleeve at the top end of the inner driving shaft;
the lower magnetic suspension sleeve comprises a lower outer magnetic suspension sleeve and a lower inner magnetic suspension sleeve arranged inside the lower outer magnetic suspension sleeve, and the inner walls of the lower inner magnetic suspension sleeve and the lower outer magnetic suspension sleeve are respectively provided with lower magnetic rings with opposite polarities;
the upper magnetic suspension sleeve comprises an upper outer magnetic suspension sleeve and an upper inner magnetic suspension sleeve arranged inside the upper outer magnetic suspension sleeve, and the inner walls of the upper inner magnetic suspension sleeve and the upper outer magnetic suspension sleeve are respectively provided with upper magnetic rings with opposite polarities;
the driving magnetic cylinder comprises an outer driving magnetic cylinder and an inner driving magnetic cylinder arranged inside the outer driving magnetic cylinder, and magnets are arranged on the inner walls of the inner driving magnetic cylinder and the outer driving magnetic cylinder.
Preferably, the side walls of the magnetic suspension positioning sleeve, the upper outer magnetic suspension sleeve, the outer driving magnetic cylinder and the lower outer magnetic suspension sleeve are provided with grooves for inserting the stirring blades.
Preferably, the stirring blades are arranged in four groups and are uniformly distributed, and the inner sides and the end parts of the stirring blades are provided with bulges matched with the grooves.
Preferably, the stirring paddle is composed of a vertical part and an inclined part, the inclined part and the vertical part are of an integrally formed structure, the bottom end of the inclined part is flush with the top end of the sealing sleeve, and the diameter of the sealing sleeve is larger than that of the magnetic suspension positioning sleeve.
Preferably, the diameters of the upper outer magnetic suspension sleeve, the outer driving magnetic cylinder and the lower outer magnetic suspension sleeve are the same.
Preferably, a sharp corner is arranged above the top of the magnetic suspension positioning sleeve, and two bottom ends of the sharp corner are respectively fixed on the inclined parts of the two opposite stirring blades.
Preferably, the sharp corner and the two opposite stirring blades are of an integrally formed structure.
Preferably, a rotating speed sensor is arranged at the bottom end of the speed reducer, and the driving device is a driving motor.
Therefore, the shaft sleeve-free full-suspension magnetic stirrer adopting the structure solves the problem that the grinding dust generated by magnetic stirring of the shaft sleeve pollutes the liquid medicine, has a simple and durable structure, prolongs the service life of the stirrer and improves the liquid medicine stirring quality.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a shaftless fully suspended magnetic stirrer according to the present invention.
Detailed Description
Examples
Fig. 1 is a schematic structural diagram of an embodiment of a shaftless fully-suspended magnetic stirrer, and as shown in the drawing, the shaftless fully-suspended magnetic stirrer provided by the invention comprises a driving device 1, a speed reducer 2 connected with the driving device 1 and an inner driving shaft connected with the speed reducer 2, wherein a rack 3 and a sealing sleeve 4 are sequentially sleeved outside the inner driving shaft from bottom to top, and the sealing sleeve 4 is connected with the rack 3 through a welding chassis 5; the outer part of the sealing sleeve 4 is sequentially sleeved with a lower magnetic suspension sleeve 6, a driving magnetic cylinder 7 and an upper magnetic suspension sleeve 8 from bottom to top, the outer parts of the upper magnetic suspension sleeve 8, the driving magnetic cylinder 7 and the lower magnetic suspension sleeve 6 are provided with stirring blades 9, and the upper ends of the stirring blades 9 are fixed on a magnetic suspension positioning sleeve 10 at the top end of the inner driving shaft. The magnetic stirrer is not provided with the shaft sleeve, so that abrasive dust falling due to friction of the shaft sleeve can be prevented from polluting liquid medicine, the driving motor drives the inner driving shaft to rotate through the speed reducer after being started, so that the sealing sleeve is driven to rotate, the sealing sleeve drives the upper magnetic suspension sleeve, the driving magnetic cylinder and the lower magnetic suspension sleeve to rotate, and the stirring paddle blade is driven to rotate, so that the liquid medicine is stirred.
The lower magnetic suspension sleeve 6 comprises a lower outer magnetic suspension sleeve 61 and a lower inner magnetic suspension sleeve 62 arranged inside the lower outer magnetic suspension sleeve 61, and the inner walls of the lower inner magnetic suspension sleeve 62 and the lower outer magnetic suspension sleeve 61 are respectively provided with lower magnetic rings with opposite polarities; the upper magnetic suspension sleeve 8 comprises an upper outer magnetic suspension sleeve 81 and an upper inner magnetic suspension sleeve 82 arranged inside the upper outer magnetic suspension sleeve 81, and the inner walls of the upper inner magnetic suspension sleeve 82 and the upper outer magnetic suspension sleeve 81 are respectively provided with upper magnetic rings with opposite polarities; the drive cylinder 7 includes an outer drive cylinder 71 and an inner drive cylinder 72 disposed inside the outer drive cylinder 71, and magnets are disposed on inner walls of both the inner drive cylinder 72 and the outer drive cylinder 71.
The side walls of the magnetic suspension positioning sleeve 10, the upper outer magnetic suspension sleeve 81, the outer driving magnetic cylinder 71 and the lower outer magnetic suspension sleeve 61 are all provided with grooves for inserting the stirring blades 9. Stirring paddle 9 sets up four groups, and evenly distributed, and stirring paddle 9's inboard and tip are provided with the arch 11 that the recess suited. The stirring paddle 9 consists of a vertical part 91 and an inclined part 92, the inclined part 92 and the vertical part 91 are of an integrally formed structure, the bottom end of the inclined part 92 is flush with the top end of the sealing sleeve 4, and the diameter of the sealing sleeve 4 is larger than that of the magnetic suspension positioning sleeve 10.
The diameters of the upper outer magnetic suspension sleeve 81, the outer driving magnetic cylinder 71 and the lower outer magnetic suspension sleeve 61 are the same, a sharp corner 12 is arranged above the top of the magnetic suspension positioning sleeve 10, and two bottom ends of the sharp corner 12 are respectively fixed on the inclined parts 92 of the two opposite stirring blades 9. The sharp corner 12 and the two opposite stirring blades 9 are of an integrated structure, so that liquid medicine is prevented from entering the stirrer to influence use.
The bottom end of the speed reducer 2 is provided with a rotating speed sensor 13, and the driving device 1 is a driving motor.
Therefore, the shaft sleeve-free full-suspension magnetic stirrer adopting the structure solves the problem that the grinding dust generated by magnetic stirring of the shaft sleeve pollutes the liquid medicine, has a simple and durable structure, prolongs the service life of the stirrer and improves the liquid medicine stirring quality.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a full suspension magnetic stirrers of no axle sleeve which characterized in that:
the device comprises a driving device, a speed reducer connected with the driving device and an inner driving shaft connected with the speed reducer, wherein a rack and a sealing sleeve are sequentially sleeved outside the inner driving shaft from bottom to top, and the sealing sleeve is connected with the rack through a welding chassis;
a lower magnetic suspension sleeve, a driving magnetic cylinder and an upper magnetic suspension sleeve are sequentially sleeved outside the sealing sleeve from bottom to top, stirring blades are arranged outside the upper magnetic suspension sleeve, the driving magnetic cylinder and the lower magnetic suspension sleeve, and the upper ends of the stirring blades are fixed on a magnetic suspension positioning sleeve at the top end of the inner driving shaft;
the lower magnetic suspension sleeve comprises a lower outer magnetic suspension sleeve and a lower inner magnetic suspension sleeve arranged inside the lower outer magnetic suspension sleeve, and the inner walls of the lower inner magnetic suspension sleeve and the lower outer magnetic suspension sleeve are respectively provided with lower magnetic rings with opposite polarities;
the upper magnetic suspension sleeve comprises an upper outer magnetic suspension sleeve and an upper inner magnetic suspension sleeve arranged inside the upper outer magnetic suspension sleeve, and the inner walls of the upper inner magnetic suspension sleeve and the upper outer magnetic suspension sleeve are respectively provided with upper magnetic rings with opposite polarities;
the driving magnetic cylinder comprises an external driving magnetic cylinder and an internal driving magnetic cylinder arranged in the external driving magnetic cylinder, and magnets are arranged on the inner walls of the internal driving magnetic cylinder and the external driving magnetic cylinder;
the side walls of the magnetic suspension positioning sleeve, the upper outer magnetic suspension sleeve, the outer driving magnetic cylinder and the lower outer magnetic suspension sleeve are all provided with grooves for inserting the stirring blades, the stirring blades are provided with four groups and are uniformly distributed, the inner sides and the end parts of the stirring blades are provided with protrusions matched with the grooves, the stirring blades consist of vertical parts and inclined parts, the inclined parts and the vertical parts are of an integrally formed structure, the bottom ends of the inclined parts are flush with the top end of the sealing sleeve, the diameter of the sealing sleeve is larger than that of the magnetic suspension positioning sleeve, the diameters of the upper outer magnetic suspension sleeve, the outer driving magnetic cylinder and the lower outer magnetic suspension sleeve are the same, a sharp corner is arranged above the top part of the magnetic suspension positioning sleeve, and the two bottom ends of the sharp corner are respectively fixed on the inclined parts of the two opposite stirring blades, the closed angle and the two opposite stirring blades are of an integrally formed structure.
2. The shaftless fully-suspended magnetic stirrer according to claim 1, wherein: the bottom of speed reducer is provided with speed sensor, drive arrangement is driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324263.7A CN111013469B (en) | 2019-12-16 | 2019-12-16 | Axle sleeve-free full-suspension magnetic stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324263.7A CN111013469B (en) | 2019-12-16 | 2019-12-16 | Axle sleeve-free full-suspension magnetic stirrer |
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| Publication Number | Publication Date |
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| CN111013469A CN111013469A (en) | 2020-04-17 |
| CN111013469B true CN111013469B (en) | 2022-02-25 |
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| CN201911324263.7A Active CN111013469B (en) | 2019-12-16 | 2019-12-16 | Axle sleeve-free full-suspension magnetic stirrer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114471303A (en) * | 2022-02-23 | 2022-05-13 | 上海天美科学仪器有限公司 | Novel high-efficient convenient cell magnetic stirrers control system |
| CN115487731A (en) * | 2022-09-20 | 2022-12-20 | 浙江绍兴福元科技有限公司 | Dye broken wall dissolving device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427039A (en) * | 2005-08-09 | 2009-05-06 | 欧米伽-凯米私立有限公司 | Magnetic seal assembly |
| CN202983593U (en) * | 2012-11-20 | 2013-06-12 | 张良光 | Magnetic levitation magnetic bottom stirring device |
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| CN111013469A (en) | 2020-04-17 |
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