CN107893856A - A kind of telescopic device for sealing magnetic fluid of mixed type - Google Patents
A kind of telescopic device for sealing magnetic fluid of mixed type Download PDFInfo
- Publication number
- CN107893856A CN107893856A CN201711333746.4A CN201711333746A CN107893856A CN 107893856 A CN107893856 A CN 107893856A CN 201711333746 A CN201711333746 A CN 201711333746A CN 107893856 A CN107893856 A CN 107893856A
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- Prior art keywords
- ring
- pole shoe
- shoe ring
- pole
- magnetic fluid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/4476—Labyrinth packings with radial path
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
It is an object of the invention to provide a kind of telescopic device for sealing magnetic fluid of mixed type, including axle, shell, the first from left pole shoe ring, the second from left pole shoe ring, the right diode boot ring of a right pole shoe ring, sleeve, magnet ring；Described the first from left pole shoe ring, the second from left pole shoe ring, a right pole shoe ring, right diode boot ring are arranged at intervals at interval in shell successively from left to right vertically, the first from left pole shoe ring, the second from left pole shoe ring, a right pole shoe ring, the periphery of right diode boot ring are in contact with the inwall of shell, the first from left pole shoe ring, the second from left pole shoe ring, a right pole shoe ring, the inner headed face of right diode boot ring radially extend to the periphery of axle, and space is left between the periphery of axle；The present invention seeks to solve the problem that pressure-resistant performance is relatively low existing for existing sealing device so that the Sealing Technology is successfully applied in the fields such as high-speed overload.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, and in particular to a kind of telescopic device for sealing magnetic fluid of mixed type.
Background technology
When magnetic fluid seal technology is applied in major diameter, high speed and heavily loaded sealed environment, the magnetic in seal clearance
Fluid often fails because seal clearance is excessive, therefore the pressure-resistant performance for improving wide arc gap magnetic fluid seal is current research
One of hot issue.
One of the method for improving the pressure-resistant performance of wide arc gap magnetic Fluid Sealing be by improving magnetic fluid seal structure,
Sealing device as described in documents 1 (Publication No. CN 103115152A patent).It is although close described in document above
The relatively common magnetic fluid seal performance of seal apparatus is greatly improved, but its sealing property does not reach high-speed overload etc. still
The high sealing performance requirement of special operation condition.
The content of the invention
It is an object of the invention to provide a kind of telescopic device for sealing magnetic fluid of mixed type, so as to solve existing sealing device
The relatively low problem of existing pressure-resistant performance so that the Sealing Technology is successfully applied in the fields such as high-speed overload.
Technical scheme is as follows：
The telescopic device for sealing magnetic fluid of described mixed type, including axle, shell, the first from left pole shoe ring, the second from left pole shoe ring, a right pole
The right diode boot ring of boots ring, sleeve, magnet ring；
Interval is set successively from left to right vertically for described the first from left pole shoe ring, the second from left pole shoe ring, a right pole shoe ring, right diode boot ring
Interval is placed in shell, the first from left pole shoe ring, the second from left pole shoe ring, a right pole shoe ring, the periphery and shell of right diode boot ring
Inwall be in contact, the first from left pole shoe ring, the second from left pole shoe ring, a right pole shoe ring, the inner headed face of right diode boot ring are radially to axle
Periphery extends, and space is left between the periphery of axle；
Described sleeve set is on axle, between the second from left pole shoe ring, a right pole shoe ring；
Described magnet ring is axially spaced in shell, left respectively between the first from left pole shoe ring and the second from left pole shoe ring
Between diode boot ring and a right pole shoe ring, between a right pole shoe ring and right diode boot ring；The periphery of the magnet ring with it is outer
The inwall contact of shell；The inner headed face of magnet ring between the periphery and the second from left pole shoe ring of described sleeve and a right pole shoe ring
Between leave space；
Pole tooth I is arranged at intervals on the right side of described the second from left pole shoe ring；Pole tooth is arranged at intervals on the left side of described sleeve
II, pole tooth III is arranged at intervals on right side；Pole tooth IV is arranged at intervals on the left side of the described pole shoe ring of the right side one；
Described pole tooth I extends to the left side of sleeve vertically, and gap is left between the left side of sleeve, is set in the gap
There is magnetic fluid；The described pole tooth II right side extensions of diode boot ring to the left vertically, between the right side of the second from left pole shoe ring
Gap is left, magnetic fluid is provided with the gap；Described pole tooth I and pole tooth II is interspersed, and does not contact between each other；
Described pole tooth IV extends to the right side of sleeve vertically, gap is left between the right side of sleeve, in the gap
Provided with magnetic fluid；The described pole tooth III left side extensions of a pole shoe ring to the right vertically, with the left side of a right pole shoe ring it
Between leave gap, magnetic fluid is provided with the gap；Described pole tooth IV and pole tooth III is interspersed, and does not connect between each other
Touch；
Described the first from left pole shoe ring and the inner headed face of right diode boot ring are provided with pole tooth V, and described pole tooth V is vertically to axle
Periphery extends, and gap is left between the periphery of axle, magnetic fluid is provided with the gap.
Described the first from left pole shoe ring and the periphery of right diode boot ring are provided with annular groove, described annular groove
Sealing ring is provided with I.
Described magnet ring is axial charging permanent magnet.
The magnetic line of force of described adjacent magnet ring is in opposite direction.
The telescopic device for sealing magnetic fluid of described mixed type, in addition to left magnetism-isolating loop and right magnetism-isolating loop；It is described it is left every
Magnet ring is located at the left side of the first from left pole shoe ring, and the inwall for being close to shell is set；Described right magnetism-isolating loop is located at the right side of right diode boot ring
Side, the inwall for being close to shell are set.
The telescopic device for sealing magnetic fluid of described mixed type, in addition to left bearing and right bearing, described left bearing and
Right bearing is set with axle, and described left bearing is located at the left side of left magnetism-isolating loop, and described right bearing is located at right magnetism-isolating loop
Right side.
Described pole tooth I is arranged at intervals 1-10, and described pole tooth II corresponds to pole tooth I and is arranged at intervals 1-10.
Described pole tooth IV is arranged at intervals 1-10；Described pole tooth III corresponds to pole tooth IV and is arranged at intervals 1-10.
Described pole tooth V is arranged at intervals 1-10.
Magnet fluid sealing is to produce magnetic field force in seal clearance using permanent magnet magnetic fluid is secured firmly between sealing
In gap, the pressure difference of both sides is resisted, so as to reach the effect of sealing.
The present invention by the pole tooth design on pole shoe in radial directions, is formed radially by designing a kind of labyrinth type sleeve
Maze spatial, while axial seal space is formed using the axially pole shoe with pole tooth, pole shoe and axle axial gap and
Injection magnetic fluid in the radial clearance of labyrinth type sleeve and pole shoe, so as to realize a kind of telescopic magnet fluid sealing dress of mixed type
Put.The present invention overcomes existing sealing device can not realize the problem of the special operation condition high sealing performance requirement such as high-speed overload, uses
The pole shoe and labyrinth type sleeve stator arrangement structure design of axial poles tooth, realize labyrinth seal and the combination of magnet fluid sealing,
Greatly reduce the voltage endurance capability that the loss of magnetic fluid in seal failure improves magnetic fluid seal under the conditions of wide arc gap
And sealing reliability.
Brief description of the drawings
Fig. 1 is the structural representation of sealing device of the present invention;
Each sequence number sign and corresponding title are as follows in figure：
1- axles, 2- shells, 3- the first from left pole shoe rings, 4- the second from left pole shoe rings, one pole shoe ring of the 5- right sides, the right diode boot rings of 6-, 7- poles tooth I,
8- poles tooth II, 9- poles tooth III, 10- poles tooth IV, 11- poles tooth V, 12- annular grooves, 13- sealing rings, the left magnetism-isolating loops of 14-, 15-
Right magnetism-isolating loop, 16- left bearings, 17- right bearings, 18- sleeves, 19- magnet rings.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the telescopic device for sealing magnetic fluid of described mixed type, including axle 1, shell 2, the first from left pole shoe ring 3,
The second from left pole shoe ring 4, a right pole shoe ring 5, right diode boot ring 6, sleeve 18, magnet ring 19；
Described the first from left pole shoe ring 3, the second from left pole shoe ring 4, a right pole shoe ring 5, right diode boot ring 6 vertically from left to right successively between
Every being arranged at interval in the shell 2, the first from left pole shoe ring 3, the second from left pole shoe ring 4, a right pole shoe ring 5, right diode boot ring 6 it is cylindrical
Face is in contact with the inwall of shell 2, the first from left pole shoe ring 3, the second from left pole shoe ring 4, a right pole shoe ring 5, the inner headed face of right diode boot ring 6
Radially extend to the periphery of axle 1, space is left between the periphery of axle 1；
Described sleeve 18 is set on axle 1, between the second from left pole shoe ring 4, a right pole shoe ring 5；
Described magnet ring 19 is axially spaced in the shell 2, respectively positioned at the first from left pole shoe ring 3 and the second from left pole shoe ring 4 it
Between, between the second from left pole shoe ring 4 and a right pole shoe ring 5, between a right pole shoe ring 5 and right diode boot ring 6；The magnet ring 19
Periphery contacts with the inwall of shell 2；Between the periphery and the second from left pole shoe ring 4 of described sleeve 18 and a right pole shoe ring 5
Space is left between the inner headed face of magnet ring 19；
Pole tooth I7 is arranged at intervals on the right side of described the second from left pole shoe ring 4；It is arranged at intervals on the left side of described sleeve 18
Pole tooth II8, pole tooth III9 is arranged at intervals on right side；Pole tooth IV 10 is arranged at intervals on the left side of the described pole shoe ring 5 of the right side one；
Described pole tooth I7 extends to the left side of sleeve 18 vertically, and gap is left between the left side of sleeve 18, between being somebody's turn to do
Magnetic fluid is provided with gap；The described pole tooth II8 right side extensions of diode boot ring 4 to the left vertically, the right side with the second from left pole shoe ring 4
Gap is left between end face, magnetic fluid is provided with the gap；Described pole tooth I7 and pole tooth II8 is interspersed, and mutually it
Between do not contact；
Described pole tooth IV 10 extends to the right side of sleeve 18 vertically, and gap is left between the right side of sleeve 18, should
Magnetic fluid is provided with gap；The described pole tooth III9 left side extensions of a pole shoe ring 5 to the right vertically, with a right pole shoe ring 5
Left side between leave gap, magnetic fluid is provided with the gap；Described pole tooth IV 10 and pole tooth III9 is interspersed, and
Do not contact between each other；
Described the first from left pole shoe ring 3 and the inner headed face of right diode boot ring 6 are provided with pole tooth V 11, and described pole tooth V 11 is vertically
Extend to the periphery of axle 1, leave gap between the periphery of axle 1, magnetic fluid is provided with the gap.
Described the first from left pole shoe ring 3 and the periphery of right diode boot ring 6 are provided with annular groove 12, described annular
Sealing ring 13 is provided with groove I12.
Described magnet ring 19 is axial charging permanent magnet.
The magnetic line of force of described adjacent magnet ring 19 is in opposite direction.
The telescopic device for sealing magnetic fluid of described mixed type, in addition to left magnetism-isolating loop 14 and right magnetism-isolating loop 15；Described
Left magnetism-isolating loop 14 is located at the left side of the first from left pole shoe ring 3, and the inwall for being close to shell 2 is set；Described right magnetism-isolating loop 15 is located at the right side two
The right side of pole shoe ring 6, the inwall for being close to shell 2 are set.
The telescopic device for sealing magnetic fluid of described mixed type, in addition to left bearing 16 and right bearing 17, described left axle
Hold 16 and right bearing 17 be set with axle 1, described left bearing 16 is located at the left side of left magnetism-isolating loop 14, described right bearing
17 are located at the right side of right magnetism-isolating loop 15.
Described pole tooth I7 is arranged at intervals 1-10, and described pole tooth II8 corresponds to pole tooth I7 and is arranged at intervals 1-10.
Described pole tooth IV 10 is arranged at intervals 1-10；Described pole tooth III9 corresponds to pole tooth IV 10 and is arranged at intervals 1-10
It is individual.
Described pole tooth V 11 is arranged at intervals 1-10.
Claims (9)
1. a kind of telescopic device for sealing magnetic fluid of mixed type, including axle（1）, shell（2）, the first from left pole shoe ring（3）, the second from left pole shoe
Ring（4）, a right pole shoe ring（5）Right diode boot ring（6）, sleeve（18）, magnet ring（19）, it is characterised in that：
Described the first from left pole shoe ring（3）, the second from left pole shoe ring（4）, a right pole shoe ring（5）, right diode boot ring（6）Vertically from a left side to
The right side is arranged at intervals at interval and is located at shell successively（2）It is interior, the first from left pole shoe ring（3）, the second from left pole shoe ring（4）, a right pole shoe ring（5）、
Right diode boot ring（6）Periphery and shell（2）Inwall be in contact, the first from left pole shoe ring（3）, the second from left pole shoe ring（4）, a right pole
Boots ring（5）, right diode boot ring（6）Inner headed face radially to axle（1）Periphery extension, with axle（1）Periphery between stay
There is space；
Described sleeve（18）It is set in axle（1）On, positioned at the second from left pole shoe ring（4）, a right pole shoe ring（5）Between；
Described magnet ring（19）It is axially spaced to be located at shell（2）It is interior, respectively positioned at the first from left pole shoe ring（3）With the second from left pole shoe
Ring（4）Between, the second from left pole shoe ring（4）With a right pole shoe ring（5）Between, a right pole shoe ring（5）With right diode boot ring（6）Between；
The magnet ring（19）Periphery and shell（2）Inwall contact；Described sleeve（18）Periphery and the second from left pole shoe
Ring（4）With a right pole shoe ring（5）Between magnet ring（19）Inner headed face between leave space；
Described the second from left pole shoe ring（4）Right side on be arranged at intervals pole tooth I（7）；Described sleeve（18）Left side between
Every setting pole tooth II（8）, pole tooth III is arranged at intervals on right side（9）；The described pole shoe ring of the right side one（5）Left side on be spaced
Pole tooth IV is set（10）；
Described pole tooth I（7）Vertically to sleeve（18）Left side extension, with sleeve（18）Left side between leave between
Gap, magnetic fluid is provided with the gap；Described pole tooth II（8）Diode boot ring to the left vertically（4）Right side extension, with the second from left
Pole shoe ring（4）Right side between leave gap, magnetic fluid is provided with the gap；Described pole tooth I（7）With pole tooth II（8）Hand over
Mistake distribution, and do not contact between each other；
Described pole tooth IV（10）Vertically to sleeve（18）Right side extension, with sleeve（18）Right side between leave between
Gap, magnetic fluid is provided with the gap；Described pole tooth III（9）A pole shoe ring to the right vertically（5）Left side extension, with the right side
One pole shoe ring（5）Left side between leave gap, magnetic fluid is provided with the gap；Described pole tooth IV（10）With pole tooth III
（9）It is interspersed, and does not contact between each other；
Described the first from left pole shoe ring（3）With right diode boot ring（6）Inner headed face be provided with pole tooth V（11）, described pole tooth V
（11）Vertically to axle（1）Periphery extension, with axle（1）Periphery between leave gap, magnetic fluid is provided with the gap.
2. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Described the first from left pole shoe ring
（3）With right diode boot ring（6）Periphery be provided with annular groove（12）, described annular groove I（12）It is interior be provided with it is close
Seal（13）.
3. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Described magnet ring
（19）For axial charging permanent magnet.
4. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Described adjacent permanent magnetism
Body ring（19）The magnetic line of force it is in opposite direction.
5. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Also include left magnetism-isolating loop
（14）With right magnetism-isolating loop（15）；Described left magnetism-isolating loop（14）Located at the first from left pole shoe ring（3）Left side, be close to shell（2）It is interior
Wall is set；Described right magnetism-isolating loop（15）Located at right diode boot ring（6）Right side, be close to shell（2）Inwall set.
6. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 5, it is characterised in that：Also include left bearing（16）
And right bearing（17）, described left bearing（16）And right bearing（17）It is set with axle（1）On, described left bearing（16）If
In left magnetism-isolating loop（14）Left side, described right bearing（17）Located at right magnetism-isolating loop（15）Right side.
7. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Described pole tooth I（7）Between
Every setting 1-10, described pole tooth II（8）Corresponding pole tooth I（7）It is arranged at intervals 1-10.
8. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Described pole tooth IV（10）
It is arranged at intervals 1-10；Described pole tooth III（9）Corresponding pole tooth IV（10）It is arranged at intervals 1-10.
9. the telescopic device for sealing magnetic fluid of mixed type as claimed in claim 1, it is characterised in that：Described pole tooth V（11）
It is arranged at intervals 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333746.4A CN107893856A (en) | 2017-12-14 | 2017-12-14 | A kind of telescopic device for sealing magnetic fluid of mixed type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333746.4A CN107893856A (en) | 2017-12-14 | 2017-12-14 | A kind of telescopic device for sealing magnetic fluid of mixed type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107893856A true CN107893856A (en) | 2018-04-10 |
Family
ID=61807438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711333746.4A Withdrawn CN107893856A (en) | 2017-12-14 | 2017-12-14 | A kind of telescopic device for sealing magnetic fluid of mixed type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893856A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282041A (en) * | 2018-11-19 | 2019-01-29 | 广西科技大学 | A kind of more magnetic hybrid type device for sealing magnetic fluid |
| CN109764138A (en) * | 2019-01-31 | 2019-05-17 | 广西科技大学 | A kind of embedded type labyrinth type device for sealing magnetic fluid |
| CN109764137A (en) * | 2019-01-31 | 2019-05-17 | 广西科技大学 | A kind of double ladder device for sealing magnetic fluid of symmetric form |
| CN112178202A (en) * | 2020-10-19 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device for sealing dust |
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| JP2002022018A (en) * | 2000-07-03 | 2002-01-23 | Kawasaki Heavy Ind Ltd | Shaft seal device by gland packing of rotation shaft |
| CN101737497A (en) * | 2010-02-11 | 2010-06-16 | 北京交通大学 | Magnetic liquid and triclinic mouth packing ring combined reciprocating shaft sealing device |
| US20110248449A1 (en) * | 2010-04-12 | 2011-10-13 | Beijing Jiaotong University | Combined sealing device for a rotary shaft |
| CN105570466A (en) * | 2016-03-02 | 2016-05-11 | 广西科技大学 | Symmetrical ladder type magnetic fluid sealing device |
| CN106015360A (en) * | 2016-08-15 | 2016-10-12 | 广西科技大学 | Labyrinth-type magnetofluid sealing device |
| CN205841774U (en) * | 2016-07-29 | 2016-12-28 | 广西科技大学 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
| CN207554797U (en) * | 2017-12-14 | 2018-06-29 | 广西科技大学 | A kind of telescopic device for sealing magnetic fluid of mixed type |
-
2017
- 2017-12-14 CN CN201711333746.4A patent/CN107893856A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002022018A (en) * | 2000-07-03 | 2002-01-23 | Kawasaki Heavy Ind Ltd | Shaft seal device by gland packing of rotation shaft |
| CN101737497A (en) * | 2010-02-11 | 2010-06-16 | 北京交通大学 | Magnetic liquid and triclinic mouth packing ring combined reciprocating shaft sealing device |
| US20110248449A1 (en) * | 2010-04-12 | 2011-10-13 | Beijing Jiaotong University | Combined sealing device for a rotary shaft |
| CN105570466A (en) * | 2016-03-02 | 2016-05-11 | 广西科技大学 | Symmetrical ladder type magnetic fluid sealing device |
| CN205841774U (en) * | 2016-07-29 | 2016-12-28 | 广西科技大学 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
| CN106015360A (en) * | 2016-08-15 | 2016-10-12 | 广西科技大学 | Labyrinth-type magnetofluid sealing device |
| CN207554797U (en) * | 2017-12-14 | 2018-06-29 | 广西科技大学 | A kind of telescopic device for sealing magnetic fluid of mixed type |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282041A (en) * | 2018-11-19 | 2019-01-29 | 广西科技大学 | A kind of more magnetic hybrid type device for sealing magnetic fluid |
| CN109282041B (en) * | 2018-11-19 | 2023-09-29 | 广西科技大学 | Multi-magnetic series-parallel magnetic fluid sealing device |
| CN109764138A (en) * | 2019-01-31 | 2019-05-17 | 广西科技大学 | A kind of embedded type labyrinth type device for sealing magnetic fluid |
| CN109764137A (en) * | 2019-01-31 | 2019-05-17 | 广西科技大学 | A kind of double ladder device for sealing magnetic fluid of symmetric form |
| CN109764138B (en) * | 2019-01-31 | 2023-09-29 | 广西科技大学 | Embedded labyrinth type magnetic fluid sealing device |
| CN109764137B (en) * | 2019-01-31 | 2023-10-20 | 广西科技大学 | Symmetrical double-step magnetic fluid sealing device |
| CN112178202A (en) * | 2020-10-19 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device for sealing dust |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180410 |
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| WW01 | Invention patent application withdrawn after publication |