CN108187927B - A kind of braking method of tube centrifuge magnetic braking apparatus and tube centrifuge - Google Patents
A kind of braking method of tube centrifuge magnetic braking apparatus and tube centrifuge Download PDFInfo
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- CN108187927B CN108187927B CN201711487550.0A CN201711487550A CN108187927B CN 108187927 B CN108187927 B CN 108187927B CN 201711487550 A CN201711487550 A CN 201711487550A CN 108187927 B CN108187927 B CN 108187927B
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- magnet
- centrifuge
- magnetic
- bowl
- tube centrifuge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
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- Centrifugal Separators (AREA)
Abstract
The present invention provides the braking method of a kind of tube centrifuge magnetic braking apparatus and tube centrifuge.Magnetic braking apparatus includes: control device, the first magnet and the second magnet；First magnet is set to centrifuge drum surface, and the second magnet is set to the outer surface of bowl；First magnet is identical as the mounting height of the second magnet, and the polarity of the first magnet and the second magnet opposing polarities is identical；Control device is for controlling power supply to the first magnet and/or the second magnet input current, so that bowl stops operating relative to centrifugation machine drum body under the magneticaction generated between the first magnet and the second magnet.While magnetic braking apparatus of the present invention realizes tube centrifuge fast braking, avoid brake apparatus and tube centrifuge because being worn caused by friction.
Description
Technical field
The invention belongs to brake field more particularly to a kind of tube centrifuge magnetic braking apparatus and tube centrifuge
Braking method.
Background technique
Tube centrifuge separative efficiency is high, smooth running, easy to operate, at low cost, and can separate general centrifuge cannot divide
From material, can get the high separating liquid of clarity, be mainly used for the industrial departments such as pharmacy, paint, dyestuff, biology.But it is existing
Some tube centrifuges have the shortcomings that one very big, i.e. down time is very long, greatly affected the production effect of tube centrifuge
Rate limits the application of tube centrifuge in actual production.
The brake apparatus of tube centrifuge mostly uses greatly friction catch principle at present, but friction catch not only has time lag and asks
Topic and wear problem, and a large amount of frictional heat can be generated at work, so that the working surface of brake apparatus is generated localized hyperthermia,
Rubbing device is set to fail.
Summary of the invention
(1) technical problems to be solved
In order to solve to wear asking for failure in turn with brake apparatus is caused due to tube centrifuge friction because of existing brake apparatus
Topic, the present invention provide the braking method of a kind of tube centrifuge magnetic braking apparatus and tube centrifuge.
(2) technical solution
To achieve the above object, the main technical schemes that the present invention uses include:
A kind of tube centrifuge magnetic braking apparatus, comprising: control device, the first magnet and the second magnet；Described
One magnet is set to centrifuge drum surface, and second magnet is set to the outer surface of bowl；First magnet
It is identical as the mounting height of second magnet, and first magnet is identical with the polarity of the second magnet opposing polarities；
The control device is for controlling power supply to first magnet and/or the second magnet input current, thus described the
Under the magneticaction generated between one magnet and second magnet, the bowl stops relative to the centrifugation machine drum body
Rotation stop is dynamic.
Further, the centrifuge drum surface includes cylinder inner surface and barrel outer surface.
Further, the magnetic braking apparatus further includes sensor, and the sensor is set to table in centrifugation machine drum body
Face, the sensor are used to detect the velocity of rotation of the bowl, and the control device is detected based on the sensor
To velocity of rotation variation and control power supply to first magnet and/or the second magnet input current.
Further, the velocity of rotation variation includes that the velocity of rotation persistently reduces.
Further, first magnet is soft magnetic bodies, and second magnet is soft magnetic bodies or permanent magnet.
Further, first magnet is circumferentially evenly provided on the centrifuge drum surface, second magnet
Circumferentially it is evenly provided on the outer surface of the bowl.
Further, first magnet and second magnet are the annular magnetic around centrifuge body centre axis
Body.
A kind of braking method of tube centrifuge, when the sensor detects under the bowl velocity of rotation
It is defeated to the magnet for bowl outer surface being arranged in centrifuge drum surface being arranged in control power supply by control device for drop
Enter electric current, the magnet that rotary drum outer surface is arranged in generates magnetic force, and the magnetic force direction is with rotary drum rotation direction on the contrary, passing through
The rotation of bowl described in reversed magnetic braking；When the sensor detects that the bowl velocity of rotation is
When zero, power supply is controlled by the control device and is stopped to magnet input current.
Further, change the size of current for being passed through the magnet by the control device, and then control the magnet
Generate the size of magnetic force.
(3) beneficial effect
The beneficial effects of the present invention are: magnetic braking apparatus of the invention includes: control device, the first magnet and the second magnetic
Body；First magnet is set to centrifuge drum surface, and the second magnet is set to the outer surface of bowl；First magnet and
The mounting height of two magnets is identical, and the polarity of the first magnet and the second magnet opposing polarities is identical；Control device is for controlling
Power supply is to the first magnet and/or the second magnet input current, so that the magnetic force generated between the first magnet and the second magnet is made
Under, bowl stops operating relative to centrifugation machine drum body.The tube centrifuge of magnetic braking apparatus of the present invention is installed,
Effectively prevented while realizing tube centrifuge fast braking brake apparatus and tube centrifuge because of friction caused by
Abrasion.
Detailed description of the invention
Fig. 1 is the partial sectional view for the tube centrifuge that the embodiment of the present invention has magnetic braking apparatus；
Fig. 2 is the A-A cross-sectional view of Fig. 1.
[description of symbols]
1: rack；2: motor；3: belt wheel；4: cylinder；5: hanging axis；6: outlet tube；7: catch tray；8: rotary drum；9: inlet tube；
10: infrared holes probe；11: control panel；12: braking magnet；13: rotating magnet.
Specific embodiment
In order to better explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair
It is bright to be described in detail.
Embodiment one
A kind of tube centrifuge magnetic braking apparatus, comprising: control device, the first magnet and the second magnet；In this reality
It applies in example, control device is control panel 11, and the first magnet is braking magnet 12, and the second magnet is rotating magnet 13, brakes magnetic
Body 12 and rotating magnet 13 are soft magnetic bodies.
Braking magnet 12 is set to centrifugation 4 inner surface of machine drum body, and rotating magnet 13 is set to the appearance of bowl 8
Face；Braking magnet 12 is identical as the mounting height of rotating magnet 13, and the pole of 13 opposing polarities of braking magnet 12 and rotating magnet
Property is identical；And braking magnet 12 and rotating magnet 13 are the toroidal magnet around centrifugation 4 central axis of machine drum body.Control panel
11 for controlling power supply to 13 input current of braking magnet 12 and rotating magnet, thus braking magnet 12 and rotating magnet 13 it
Between under the magneticaction that generates, bowl 8 stops operating relative to centrifugation machine drum body.
Magnetic braking apparatus further includes sensor, and in the present embodiment, sensor is infrared holes probe 10, infrared spy of testing the speed
First 10 are set to centrifugation 4 inner surface of machine drum body, for detecting the velocity of rotation of bowl 8, when control panel 11 receives
When the velocity of rotation that infrared holes probe 10 measures bowl 8 persistently reduces, control panel 11 controls power supply to braking magnetic
13 input current of body 12 and rotating magnet.
Embodiment two
A kind of tube centrifuge magnetic braking apparatus, comprising: control device, the first magnet and the second magnet；In this reality
It applies in example, control device is control panel 11, and the first magnet is braking magnet 12, and the second magnet is rotating magnet 13, brakes magnetic
Body 12 is soft magnetic bodies, and rotating magnet 13 is permanent magnet.
Braking magnet 12 is set to centrifugation 4 outer surface of machine drum body, and rotating magnet 13 is set to the appearance of bowl 8
Face；Braking magnet 12 is identical as the mounting height of rotating magnet 13, and the pole of 13 opposing polarities of braking magnet 12 and rotating magnet
Property is identical；The circumferential outer surface for being evenly provided on centrifugation machine drum body 4 of braking magnet 12, rotating magnet 13 is circumferential to be equably arranged
In the outer surface of bowl 8.Control panel 11 is for controlling power supply to 12 input current of braking magnet, thus in braking magnetic
Under the magneticaction generated between body 12 and rotating magnet 13, bowl 8 stops operating relative to centrifugation machine drum body.
Magnetic braking apparatus further includes sensor, and in the present embodiment, sensor is infrared holes probe 10, infrared spy of testing the speed
First 10 are set to centrifugation 4 inner surface of machine drum body, for detecting the velocity of rotation of bowl 8, when control panel 11 receives
When the velocity of rotation that infrared holes probe 10 measures bowl 8 persistently reduces, control panel 11 controls power supply to braking magnetic
12 input current of body.
Embodiment three
As shown in Figure 1, to be equipped with the tube centrifuge of magnetic braking apparatus.Tube centrifuge includes: to be arranged in rack 1
On motor 2, the hanging axis 5, the centrifugal device being connected with hanging axis 5, the cylinder 4 that is connected with rack 1 that are arranged in rack 1,
Motor 2 drives belt rotation by belt wheel 3, and then drives the rotation for the centrifugal device being connected with hanging axis 5；Centrifugal device includes
Outlet tube 6, catch tray 7, rotary drum 8 and the inlet tube 9 set gradually from top to bottom；It is set to the system of centrifugation 4 inner surface of machine drum body
Dynamic magnet 12, is set to the rotating magnet 13 of 8 outer surface of bowl, is set to the infrared survey of centrifugation 4 inner surface of machine drum body
Speed probe 10, the control panel 11 being set in tube centrifuge rack 1.
When motor 2 stops working, control panel 11 is received, the bowl 8 that infrared holes probe 10 detects
The signal that velocity of rotation persistently reduces, control panel 11 control power supply to setting 8 outer surface of bowl and setting from
The magnet input current on 4 surface of scheming cylinder, the braking magnet 12 that 8 outer surface of rotary drum is arranged in generates magnetic force, due to braking magnetic
Body 12 is identical with the polarity of 13 opposing polarities of rotating magnet, as shown in Fig. 2, can generate between braking magnet 12 and rotating magnet 13
The effect of mutually exclusive power, this mutually exclusive power can generate the tangential component along 8 rotation direction of rotary drum, this tangential component
It can play the role of that rotary drum 8 is prevented to rotate, to achieve the purpose that brake rotary drum 8；Hot outer holes probe 10 detects centrifugation
When machine rotary drum velocity of rotation is zero, the information that control panel 11 is fed back according to infrared holes probe 10, control power supply stops to magnetic
Body input current.
Change the size of current for being passed through magnet by control panel 11, can control the size that magnet generates magnetic force.
It illustrates, the control panel 11 of tube centrifuge magnetic braking apparatus of the present invention both can be according to infrared
The information that holes probe 10 is fed back, automatically controls the input of magnet current；It can also break down in centrifuge and need urgent system
When turn drum 8, the input of magnet current is controlled by manual control control panel 11.
It is to be appreciated that describing the skill simply to illustrate that of the invention to what specific embodiments of the present invention carried out above
Art route and feature, its object is to allow those skilled in the art to can understand the content of the present invention and implement it accordingly, but
The present invention is not limited to above-mentioned particular implementations.All various changes made within the scope of the claims are repaired
Decorations, should be covered by the scope of protection of the present invention.
Claims (7)
1. a kind of tube centrifuge magnetic braking apparatus characterized by comprising control device, the first magnet and the second magnetic
Body；
First magnet is set to centrifuge drum surface, and second magnet is set to the outer surface of bowl；Institute
State that the first magnet is identical as the mounting height of second magnet, and first magnet and the second magnet opposing polarities
Polarity is identical；
The control device is for controlling power supply to first magnet and/or the second magnet input current, thus in institute
It states under the magneticaction generated between the first magnet and second magnet, the bowl is relative to the centrifugation machine barrel
Body stops operating；
The magnetic braking apparatus further includes sensor, and the sensor is set to centrifuge cylinder inner surface, the sensor
For detecting the velocity of rotation of the bowl, the control device is become based on the velocity of rotation that the sensor detects
Change and controls power supply to first magnet and/or the second magnet input current；
The velocity of rotation variation includes that the velocity of rotation persistently reduces.
2. magnetic braking apparatus according to claim 1, which is characterized in that the centrifuge drum surface includes in cylinder
Surface and barrel outer surface.
3. tube centrifuge magnetic braking apparatus according to claim 1, which is characterized in that first magnet is soft
Magnet, second magnet are soft magnetic bodies or permanent magnet.
4. tube centrifuge magnetic braking apparatus according to claim 1 or 3, which is characterized in that first magnet
It circumferentially is evenly provided on the centrifuge drum surface, second magnet is circumferentially evenly provided on the bowl
Outer surface.
5. tube centrifuge magnetic braking apparatus according to claim 1 or 3, which is characterized in that first magnet
With the toroidal magnet that second magnet is around centrifuge body centre axis.
6. a kind of braking method of tube centrifuge, which is characterized in that using tubular type as described in any one in claim 1-5 from
Scheming brakes tube centrifuge with magnetic braking apparatus, and the braking method includes:
When the sensor detects the decline of the bowl velocity of rotation, power supply is controlled to setting by control device
In bowl outer surface and the magnet input current that centrifuge drum surface is arranged in, the rotary drum outer surface that is arranged in
Magnet generates magnetic force, and direction and the rotary drum rotation direction of the magnetic force are on the contrary, pass through centrifugal basket described in reversed magnetic braking
Bulging rotation；When the sensor detects that the bowl velocity of rotation is zero, controlled by the control device
Power supply stops to magnet input current.
7. braking method according to claim 6, which is characterized in that be passed through the magnet by control device change
Size of current, and then control the size that the magnet generates magnetic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487550.0A CN108187927B (en) | 2017-12-29 | 2017-12-29 | A kind of braking method of tube centrifuge magnetic braking apparatus and tube centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487550.0A CN108187927B (en) | 2017-12-29 | 2017-12-29 | A kind of braking method of tube centrifuge magnetic braking apparatus and tube centrifuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108187927A CN108187927A (en) | 2018-06-22 |
| CN108187927B true CN108187927B (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487550.0A Active CN108187927B (en) | 2017-12-29 | 2017-12-29 | A kind of braking method of tube centrifuge magnetic braking apparatus and tube centrifuge |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225674B (en) * | 2018-10-30 | 2020-12-22 | 南京莫尼亚离心机科技发展有限公司 | Laboratory high-speed tubular centrifuge of cooling and lubricating integration |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005177329A (en) * | 2003-12-22 | 2005-07-07 | Mitsubishi Electric Corp | Washing machine |
| CN101170273A (en) * | 2006-10-24 | 2008-04-30 | 陈祖茂 | Magnetic force braking device |
| CN104911867A (en) * | 2014-03-10 | 2015-09-16 | 海尔集团技术研发中心 | Braking device, washing machine with braking device and control method of washing machine |
| CN105521876A (en) * | 2016-01-15 | 2016-04-27 | 上海戴宝机械设备有限公司 | Tubular centrifuge and method thereof for keeping balance of rotating drum |
| CN105986410A (en) * | 2015-01-28 | 2016-10-05 | 刘粤荣 | Electric device, washing machine containing electric device and driving and braking method thereof |
| CN206666855U (en) * | 2017-03-09 | 2017-11-24 | 青岛海尔洗衣机有限公司 | A kind of automatic washing machine |
-
2017
- 2017-12-29 CN CN201711487550.0A patent/CN108187927B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005177329A (en) * | 2003-12-22 | 2005-07-07 | Mitsubishi Electric Corp | Washing machine |
| CN101170273A (en) * | 2006-10-24 | 2008-04-30 | 陈祖茂 | Magnetic force braking device |
| CN104911867A (en) * | 2014-03-10 | 2015-09-16 | 海尔集团技术研发中心 | Braking device, washing machine with braking device and control method of washing machine |
| CN105986410A (en) * | 2015-01-28 | 2016-10-05 | 刘粤荣 | Electric device, washing machine containing electric device and driving and braking method thereof |
| CN105521876A (en) * | 2016-01-15 | 2016-04-27 | 上海戴宝机械设备有限公司 | Tubular centrifuge and method thereof for keeping balance of rotating drum |
| CN206666855U (en) * | 2017-03-09 | 2017-11-24 | 青岛海尔洗衣机有限公司 | A kind of automatic washing machine |
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| Publication number | Publication date |
|---|---|
| CN108187927A (en) | 2018-06-22 |
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