CN211462975U

CN211462975U - Magnetic stirring device

Info

Publication number: CN211462975U
Application number: CN201922281681.4U
Authority: CN
Inventors: 汪国强
Original assignee: Dumasi Scientific Instruments Jiangsu Co ltd
Current assignee: Dumasi Scientific Instruments Jiangsu Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-11
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a magnetic stirring device, including motor, last fixing base, protective sheath, lower fixing base and (mixing) shaft, the upper end of going up the fixing base is equipped with the motor, the lower extreme of going up the fixing base even has the protective sheath, the lower extreme of protective sheath is equipped with down the fixing base, be equipped with cylindrical commentaries on classics piece in the protective sheath, be equipped with the axle sleeve between commentaries on classics piece and the protective sheath, the last pot head of commentaries on classics piece has the driven magnet rotor, even there is the carousel in the pivot of motor, the below of fixing base is located to the carousel, is equipped with the initiative magnet rotor on the carousel, the outside at the driven magnet rotor is overlapped to the initiative magnet rotor. The stirring shaft is driven to rotate through magnetic force, the problems of poor stability and high noise of direct driving of a motor are solved, the magnetic stirring is more stable, the stirring effect and the safety in the using process are improved, liquid is prevented from splashing, and the noise is greatly reduced by the magnetic stirring.

Description

Magnetic stirring device

Technical Field

The utility model relates to an experimental apparatus technical field specifically is a magnetic stirring device.

Background

The falling film evaporation is that the feed liquid is added from an upper pipe box of a heating chamber of the falling film evaporator, is uniformly distributed into each heat exchange pipe through a liquid distribution and film forming device, and flows from top to bottom in a uniform film shape under the action of gravity, vacuum induction and airflow. In the flowing process, the shell-pass heating medium is heated and vaporized, the generated steam and the liquid phase enter a separation chamber of the evaporator together, the steam and the liquid are fully separated, the steam enters a condenser for condensation (single-effect operation) or enters a next-effect evaporator as the heating medium, so that the multi-effect operation is realized, and the liquid phase is discharged from the separation chamber.

When carrying out falling film evaporation test in the laboratory, need use and scrape the wall device and carry out the wiped film and handle, among the prior art, the rotation of scraping the wall device adopts the motor to drive the rotation and scrapes the wall stirring, and motor direct drive's stability is relatively poor, the noise is great.

Disclosure of Invention

The utility model discloses be exactly the above-mentioned not enough to prior art exists, provide a magnetic stirring device, it is rotatory to drive the (mixing) shaft through magnetic force, replaces the mode that directly adopts motor drive (mixing) shaft at present, has solved the relatively poor, the great problem of noise of motor direct drive's stability, and magnetic stirring rotates more steadily, has improved stirring effect and security in the use, prevents the liquid spill, and magnetic stirring greatly reduced the noise simultaneously.

In order to realize the purpose, the utility model provides the following technical scheme:

the utility model provides a magnetic stirring device, includes the motor, goes up fixing base, protective sheath, lower fixing base and (mixing) shaft, the upper end of going up the fixing base is equipped with the motor, the lower extreme of going up the fixing base even has the protective sheath, the lower extreme of protective sheath is equipped with down the fixing base, be equipped with cylindrical commentaries on classics piece in the protective sheath, be equipped with the axle sleeve between commentaries on classics piece and the protective sheath, the last pot head of commentaries on classics piece has the driven magnet rotor, even there is the carousel in the pivot of motor, the below of fixing base is located to the carousel, is equipped with the initiative magnet rotor on the carousel, initiative magnet rotor cover is in the.

Preferably, the protective sheath includes sheath and lower sheath, and the both ends of going up the sheath all are equipped with the go-between, the lower extreme of going up the fixing base is equipped with the adapter sleeve, go up the upper end of sheath and pass through go-between and adapter sleeve threaded connection, the upper end threaded connection of going up the lower extreme of sheath and lower sheath, the lower extreme of sheath is equipped with the ring flange down, the ring flange passes through the bolt and is connected with lower fixing base.

Preferably, the lower end of the rotary table is provided with a mounting plate, and the driving magnet rotor is connected with the mounting plate.

Preferably, the driving magnet rotor and the driven magnet rotor are both permanent magnets.

Preferably, the upper end of the rotating block is provided with a rotating column, the diameter of the rotating column is smaller than that of the rotating block, and the driven magnet rotor is connected with the side wall of the rotating column.

Preferably, the upper end of the stirring shaft is matched with the lower connector through a bolt.

Preferably, the outer side of the stirring shaft is sleeved with a bearing, and the outer side wall of the bearing is connected with the inner wall of the lower sheath.

Preferably, the inner wall of the lower sheath is provided with a limit ring, and the bearing is arranged at the lower end of the limit ring.

Compared with the prior art, the beneficial effects of utility model are that:

1. the utility model discloses a magnetic force drives the (mixing) shaft rotation, replaces the mode that directly adopts motor drive (mixing) shaft at present, has solved the relatively poor, the great problem of noise of stability of motor direct drive, and magnetic stirring rotates more steadily, has improved stirring effect and security in the use, prevents the liquid spill, and magnetic stirring greatly reduced the noise simultaneously.

2. The utility model discloses a protective sheath adopts split type structure, adopts the threaded connection mode, and the dismouting of being convenient for makes things convenient for equipment and later stage to overhaul, greatly increased the convenience of use.

3. The utility model discloses for the ease of dismouting maintenance, bolt cooperation between the upper end of (mixing) shaft and lower connector has increased the convenience when maintaining, and the change of being convenient for has reduced the maintenance time.

4. The utility model discloses there is the bearing outside cover at the (mixing) shaft, improves the stationarity of (mixing) shaft when rotatory, and the spacing ring can carry on spacingly, fixed to the mounted position of bearing, increases the reliability of using.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the upper sheath;

fig. 4 is a structural schematic view of the lower sheath.

In the figure: 1-a motor; 2-an upper fixed seat; 201-connecting sleeve; 3-protecting the jacket; 301-over-sheathing; 302-lower sheath; 303-a spacing ring; 304-a connecting ring; 305-a flange plate; 4-lower fixed seat; 5-stirring shaft; 6, rotating a disc; 601-a mounting plate; 7-a driving magnet rotor; 8-a driven magnet rotor; 9-turning blocks; 901-spin columns; 902-lower connector; 10-shaft sleeve; 11-bearings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, a magnetic stirring device, includes motor 1, last fixing base 2, protective sheath 3, lower fixing base 4 and (mixing) shaft 5, the upper end of going up fixing base 2 is equipped with motor 1, the lower extreme of going up fixing base 2 even has protective sheath 3, the lower extreme of protective sheath 3 is equipped with down fixing base 4, be equipped with cylindrical commentaries on classics piece 9 in the protective sheath 3, be equipped with axle sleeve 10 between commentaries on classics piece 9 and the protective sheath 3, the upper end cover of commentaries on classics piece 9 has driven magnet rotor 8, even there is carousel 6 in the pivot of motor 1, carousel 6 locates the below of last fixing base 2, is equipped with initiative magnet rotor 7 on the carousel 6, initiative magnet rotor 7 covers in the outside of driven magnet rotor 8, the (mixing) shaft 5 is connected with the lower extreme.

Motor 1 drives initiative magnet rotor 7 rotatory, it is rotatory to drive driven magnet rotor 8, because driven magnet rotor 8 fixes on commentaries on classics piece 9, make commentaries on classics piece 9 at 3 internal rotations of protective sheath, thereby drive (mixing) shaft 5 and rotate, realize the stirring, it is rotatory through magnetic force drive (mixing) shaft 5, it rotates more steadily, has improved stirring effect and security in the use, prevents the liquid spill, magnetic stirring greatly reduced the noise simultaneously.

In order to facilitate the disassembly and assembly, as shown in fig. 3-4, the protective sleeve 3 includes an upper protective sleeve 301 and a lower protective sleeve 302, both ends of the upper protective sleeve 301 are provided with connecting rings, the lower end of the upper fixing base 2 is provided with a connecting sleeve 201, the upper end of the upper protective sleeve 301 is in threaded connection with the connecting sleeve 201 through the connecting ring, the lower end of the upper protective sleeve 301 is in threaded connection with the upper end of the lower protective sleeve 302 through the connecting ring, the lower end of the lower protective sleeve 302 is provided with a flange, and the flange is connected with the lower fixing base.

This protective sheath 3 adopts threaded connection mode, the dismouting of being convenient for, convenient equipment and later stage are overhauld, greatly increased the convenience of use.

Further, a mounting plate 601 is arranged at the lower end of the rotating disk 6, the mounting plate 601 is of an annular structure, and the driving magnet rotor 7 is connected with the mounting plate 601.

In this embodiment, the driving magnet rotor 7 and the driven magnet rotor 8 are both permanent magnets, so that the cost is low and the materials can be conveniently obtained.

Further, the upper end of the rotating block 9 is provided with a rotating column 901, the diameter of the rotating column 901 is smaller than that of the rotating block 9, so that an installation space is reserved for the driving magnet rotor 7 and the driven magnet rotor 8, and the driven magnet rotor 8 is connected with the side wall of the rotating column 901.

In order to facilitate disassembly and assembly and maintenance, the upper end of the stirring shaft 5 is in bolt fit with the lower connector 902.

In order to ensure the stability of the stirring shaft 5 during rotation, a bearing 11 is sleeved on the outer side of the stirring shaft 5, and the outer side wall of the bearing 11 is connected with the inner wall of the lower sheath 302.

In order to position the bearing 11 conveniently, a limiting ring 303 is arranged on the inner wall of the lower sheath 302, the bearing 11 is arranged at the lower end of the limiting ring 303, and the bearing 11 is fixed between the limiting ring 303 and the lower fixing seat 4 to prevent the stirring shaft 5 from shaking in the rotating process.

The concrete driving principle does, and motor 1 rotates and drives carousel 6 rotatory, and initiative magnet rotor 7 on carousel 6 utilizes the like poles of magnetic substance to repel's characteristic, and it is rotatory to drive driven magnet rotor 8, and driven magnet rotor 8 drives commentaries on classics piece 9 and rotates, and commentaries on classics piece 9 rotates and drives the (mixing) shaft 5 of below and take place the rotation, connects different stirring leaves according to specific experiment demand on the (mixing) shaft 5 and stirs.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A magnetic stirring device is characterized in that: including the motor, go up fixing base, protective sheath, lower fixing base and (mixing) shaft, the upper end of going up the fixing base is equipped with the motor, the lower extreme of going up the fixing base even has the protective sheath, the lower extreme of protective sheath is equipped with down the fixing base, be equipped with cylindrical commentaries on classics piece in the protective sheath, be equipped with the axle sleeve between commentaries on classics piece and the protective sheath, the last pot head of commentaries on classics piece has the driven magnet rotor, even there is the carousel in the pivot of motor, the below of fixing base is located to the carousel, is equipped with the initiative magnet rotor on the carousel, initiative magnet rotor cover is in the outside of driven.

2. A magnetic stirring apparatus as set forth in claim 1 wherein: the protective sheath includes sheath and lower sheath, and the both ends of going up the sheath all are equipped with the go-between, the lower extreme of going up the fixing base is equipped with the adapter sleeve, go up the upper end of sheath and pass through go-between and adapter sleeve threaded connection, the upper end threaded connection of going up the lower extreme of sheath and passing through go-between and lower sheath, the lower extreme of sheath is equipped with the ring flange down, the ring flange passes through the bolt and is connected with lower fixing base.

3. A magnetic stirring apparatus as set forth in claim 1 wherein: the lower extreme of carousel is equipped with the mounting panel, the initiative magnet rotor is connected with the mounting panel.

4. A magnetic stirring apparatus as set forth in claim 1 wherein: the driving magnet rotor and the driven magnet rotor are both permanent magnets.

5. A magnetic stirring apparatus as set forth in claim 1 wherein: the upper end of the rotating block is provided with a rotating column, the diameter of the rotating column is smaller than that of the rotating block, and the driven magnet rotor is connected with the side wall of the rotating column.

6. A magnetic stirring apparatus as set forth in claim 1 wherein: the upper end of the stirring shaft is matched with the lower connector through bolts.

7. A magnetic stirring apparatus as set forth in claim 2 wherein: the outer side of the stirring shaft is sleeved with a bearing, and the outer side wall of the bearing is connected with the inner wall of the lower sheath.

8. A magnetic stirring apparatus as set forth in claim 7 wherein: the inner wall of the lower sheath is provided with a limiting ring, and the bearing is arranged at the lower end of the limiting ring.