CN213506905U - Go up magnetic stirrer - Google Patents
Go up magnetic stirrer Download PDFInfo
- Publication number
- CN213506905U CN213506905U CN202022196497.2U CN202022196497U CN213506905U CN 213506905 U CN213506905 U CN 213506905U CN 202022196497 U CN202022196497 U CN 202022196497U CN 213506905 U CN213506905 U CN 213506905U
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- sleeve
- outer rotor
- stirring shaft
- mounting seat
- bearing sleeve
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- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model relates to the field of machinary, concretely relates to agitator. An upper magnetic stirrer comprises a stirrer body, wherein the stirrer body comprises a speed reducing motor, a mounting seat, a stirring shaft and a bearing sleeve. The utility model discloses a this design provides an go up magnetic stirrers, and simple structure, use are convenient, and this design passes through the outer magnetism and drives interior magnetism, makes the (mixing) shaft rotate stirring function, and the agitator need not mechanical seal, avoids dying fungus, does not have the leakage, and life is longer, has guaranteed the result of use of agitator.
Description
Technical Field
The utility model relates to the field of machinary, specifically, relate to the agitator.
Background
The existing stirrer used for the equipment such as a biological fermentation tank, a bioreactor and the like usually adopts a lower magnetic stirrer, but the lower magnetic stirrer has small torque and can cause the problems of slow rotating speed or stalling and the like, if the lower magnetic stirrer adopts an eccentric structure, the arrangement of a discharge hole of the biological fermentation tank is easily influenced, and the stirring is easily uneven; and the sealed effect of current agitator is relatively poor, can produce between the mechanical stirring shaft of agitator and the apron and leak, uses 1 ~ 3 months and need to inspect the machine and seal, often can produce the pressurize problem during the use, still need carry out the alignment machine and seal, has reduced the result of use of agitator.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an go up magnetic stirrers to solve above-mentioned at least one technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an upper magnetic stirrer comprises a stirrer body, and is characterized in that the stirrer body comprises a speed reducing motor, a mounting seat, a stirring shaft and a bearing sleeve;
the mounting seat is arranged below the speed reducing motor and is cylindrical, and a first flanging for supporting the speed reducing motor is arranged at the upper part of the mounting seat;
an outer rotor is arranged on a driving shaft of the speed reducing motor, the outer rotor is arranged in the mounting seat, the upper part of the stirring shaft is arranged in the mounting seat, an inner rotor matched with the outer rotor is arranged on the upper part of the stirring shaft, and a stainless steel isolation sleeve is arranged between the outer rotor and the inner rotor;
the bearing sleeve is arranged below the mounting seat, the bearing sleeve is in a circular tube shape, the middle of the stirring shaft is arranged in the bearing sleeve, bearings are arranged on the upper side and the lower side in the bearing sleeve, and the lower portion of the stirring shaft extends out of the lower portion of the bearing sleeve.
The bearing is a ceramic bearing.
The outer rotor comprises an outer rotor isolation sleeve made of stainless steel, a first mounting hole for inserting a driving shaft of the speed reducing motor is formed in the upper portion of the outer rotor isolation sleeve, and outer rotor magnetic steel is embedded in the outer rotor isolation sleeve;
the inner rotor comprises an inner rotor isolation sleeve made of stainless steel, a second mounting hole for inserting the stirring shaft is formed in the inner rotor isolation sleeve, and inner rotor magnetic steel is embedded in the inner rotor isolation sleeve.
The outer rotor magnetic steel and the inner rotor magnetic steel both adopt neodymium iron boron magnetic steel.
The lower part of the bearing sleeve is provided with a sealing cover plate, and the middle part of the sealing cover plate is provided with a through hole for penetrating through the stirring shaft.
The upper part of the bearing sleeve is provided with a second flanging used for supporting the mounting seat, the upper part of the bearing sleeve is provided with an annular bulge with a circular cross section, the annular bulge is arranged on the outer side of the stirring shaft, and a gap is formed between the mounting seat and the annular bulge;
the cross section of the stainless steel isolation sleeve is in an inverted U shape, and the lower part of the stainless steel isolation sleeve is embedded into a gap between the mounting seat and the annular bulge.
The utility model discloses a this design provides an go up magnetic stirrers, and simple structure, use are convenient, and this design passes through the outer magnetism and drives interior magnetism, makes the (mixing) shaft rotate stirring function, and the agitator need not mechanical seal, avoids dying fungus, does not have the leakage, and life is longer, has guaranteed the result of use of agitator.
Drawings
Fig. 1 is a schematic view of a part of the structure of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, an upper magnetic stirrer comprises a stirrer body, wherein the stirrer body comprises a speed reduction motor 1, a mounting seat 8, a stirring shaft 12 and a bearing sleeve 10; a mounting seat is arranged below the speed reducing motor, the mounting seat is cylindrical, and a first flanging for supporting the speed reducing motor is arranged at the upper part of the mounting seat; an outer rotor 3 is arranged on a driving shaft 2 of the speed reducing motor, the outer rotor is arranged in the mounting seat, the upper part of the stirring shaft is arranged in the mounting seat, an inner rotor 7 matched with the outer rotor is arranged on the upper part of the stirring shaft, and a stainless steel isolation sleeve 5 is arranged between the outer rotor and the inner rotor; a bearing sleeve is arranged below the mounting seat, the bearing sleeve is in a circular tube shape, the middle part of the stirring shaft is arranged in the bearing sleeve, bearings are arranged on the upper side and the lower side in the bearing sleeve, and the lower part of the stirring shaft extends out of the lower part of the bearing sleeve. The utility model discloses a this design provides an go up magnetic stirrers, and simple structure, use are convenient, and this design passes through the outer magnetism and drives interior magnetism, makes the (mixing) shaft rotate stirring function, and the agitator need not mechanical seal, avoids dying fungus, does not have the leakage, and life is longer, has guaranteed the result of use of agitator.
The bearing comprises a first bearing 9 arranged on the upper side in the bearing sleeve and a second bearing 11 arranged on the lower side in the bearing sleeve, the outer ring of the first bearing is clamped in the clamping groove in the bearing sleeve, the outer ring of the second bearing is clamped in the clamping groove in the bearing sleeve, and the stirring shaft sequentially penetrates through the inner ring of the first bearing and the inner ring of the second bearing. The bearing is a ceramic bearing. The ceramic bearing has the characteristics of high temperature resistance and wear resistance.
The outer rotor comprises an outer rotor isolation sleeve made of stainless steel, the upper part of the outer rotor isolation sleeve is provided with a first mounting hole for inserting a driving shaft of the speed reducing motor, and outer rotor magnetic steel 4 is embedded in the outer rotor isolation sleeve; the inner rotor comprises an inner rotor isolation sleeve made of stainless steel, a second mounting hole for inserting the stirring shaft is formed in the inner rotor isolation sleeve, and inner rotor magnetic steel 6 is embedded in the inner rotor isolation sleeve. The outer rotor magnetic steel and the inner rotor magnetic steel both adopt neodymium iron boron magnetic steel. The outer rotor magnetic steel and the inner rotor magnetic steel are respectively embedded in an outer rotor isolation sleeve and an inner rotor isolation sleeve which are made of stainless steel, so that the stirrer is totally closed without leakage, and the using effect of the stirrer is ensured.
The lower part of the bearing sleeve is provided with a sealing cover plate, and the middle part of the sealing cover plate is provided with a through hole for penetrating through the stirring shaft. To ensure the sealing effect of the lower side of the bearing sleeve.
The upper part of the bearing sleeve is provided with a second flanging used for supporting the mounting seat, the upper part of the bearing sleeve is provided with an annular bulge with a circular cross section, the annular bulge is arranged on the outer side of the stirring shaft, and a gap is formed between the mounting seat and the annular bulge; the cross section of the stainless steel isolation sleeve is in an inverted U shape, and the lower part of the stainless steel isolation sleeve is embedded into a gap between the mounting seat and the annular bulge.
In order to ensure the stirring effect of the stirrer, the lower end part of the stirring shaft is provided with a stirring paddle. The stirring paddle adopts one of an anchor type stirring paddle, a paddle type stirring paddle, a turbine type stirring paddle, a push type stirring paddle and a frame type stirring paddle.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An upper magnetic stirrer comprises a stirrer body, and is characterized in that the stirrer body comprises a speed reducing motor, a mounting seat, a stirring shaft and a bearing sleeve;
the mounting seat is arranged below the speed reducing motor and is cylindrical, and a first flanging for supporting the speed reducing motor is arranged at the upper part of the mounting seat;
an outer rotor is arranged on a driving shaft of the speed reducing motor, the outer rotor is arranged in the mounting seat, the upper part of the stirring shaft is arranged in the mounting seat, an inner rotor matched with the outer rotor is arranged on the upper part of the stirring shaft, and a stainless steel isolation sleeve is arranged between the outer rotor and the inner rotor;
the bearing sleeve is arranged below the mounting seat, the bearing sleeve is in a circular tube shape, the middle of the stirring shaft is arranged in the bearing sleeve, bearings are arranged on the upper side and the lower side in the bearing sleeve, and the lower portion of the stirring shaft extends out of the lower portion of the bearing sleeve.
2. An upper magnetic stirrer according to claim 1, wherein the bearings are ceramic bearings.
3. The upper magnetic stirrer according to claim 1, wherein the outer rotor includes an outer rotor spacer sleeve made of stainless steel, an upper portion of the outer rotor spacer sleeve is provided with a first mounting hole for inserting a driving shaft of the reduction motor, and outer rotor magnetic steel is embedded in the outer rotor spacer sleeve;
the inner rotor comprises an inner rotor isolation sleeve made of stainless steel, a second mounting hole for inserting the stirring shaft is formed in the inner rotor isolation sleeve, and inner rotor magnetic steel is embedded in the inner rotor isolation sleeve.
4. The upper magnetic stirrer according to claim 3, wherein the outer rotor magnetic steel and the inner rotor magnetic steel are both neodymium iron boron magnetic steel.
5. The upper magnetic stirrer according to claim 1, wherein a sealing cover plate is provided at a lower portion of the bearing housing, and a through hole for passing the stirring shaft is provided at a middle portion of the sealing cover plate.
6. The upper magnetic stirrer according to claim 1, wherein the upper portion of the bearing sleeve is provided with a second flange for supporting the mounting base, the upper portion of the bearing sleeve is provided with an annular protrusion with a circular cross section, the annular protrusion is arranged on the outer side of the stirring shaft, and a gap is formed between the mounting base and the annular protrusion;
the cross section of the stainless steel isolation sleeve is in an inverted U shape, and the lower part of the stainless steel isolation sleeve is embedded into a gap between the mounting seat and the annular bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022196497.2U CN213506905U (en) | 2020-09-29 | 2020-09-29 | Go up magnetic stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022196497.2U CN213506905U (en) | 2020-09-29 | 2020-09-29 | Go up magnetic stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213506905U true CN213506905U (en) | 2021-06-22 |
Family
ID=76464081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022196497.2U Active CN213506905U (en) | 2020-09-29 | 2020-09-29 | Go up magnetic stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213506905U (en) |
-
2020
- 2020-09-29 CN CN202022196497.2U patent/CN213506905U/en active Active
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