CN106972398A - A kind of environmentally friendly ring main unit magnet fluid sealing reel - Google Patents
A kind of environmentally friendly ring main unit magnet fluid sealing reel Download PDFInfo
- Publication number
- CN106972398A CN106972398A CN201710253673.1A CN201710253673A CN106972398A CN 106972398 A CN106972398 A CN 106972398A CN 201710253673 A CN201710253673 A CN 201710253673A CN 106972398 A CN106972398 A CN 106972398A
- Authority
- CN
- China
- Prior art keywords
- housing
- power transmission
- transmission shaft
- annular groove
- environmentally friendly
- Prior art date
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 239000012530 fluid Substances 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 239000011553 magnetic fluid Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 32
- 229910018503 SF6 Inorganic materials 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 229960000909 sulfur hexafluoride Drugs 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a kind of environmentally friendly ring main unit magnet fluid sealing reel, including power transmission shaft and the housing for being internally provided with endoporus；The power transmission shaft has annular groove, magnetic fluid is filled with annular groove, the annular groove both sides are provided with bearing, bearing holder (housing, cover) is on power transmission shaft, and positioned at the internal layer of housing, pole shoe is provided between the housing and annular groove, pole shoe is fixedly mounted on housing, permanent magnet is provided between adjacent pole shoe；The shell one end, which has, is provided with sealing ring in concave station, concave station, the housing other end is provided with end cap, and end cap is connected by screw with housing.The present invention is by the way that case weld is fixed on gas tank front panel and by stud, and sealing ring is brought into close contact gas tank surface of steel plate using " O " type rubber seal；The tight fit of sealing reel is realized by stud and nut；Force dispersion and the fast leveling of sealing vacancy, filling when improving drive axis by bearing, magnetic fluid, permanent magnet, pole shoe.
Description
Technical field
The present invention relates to sealing device technical field, especially a kind of environmentally friendly ring main unit magnet fluid sealing reel.
Background technology
The demand and development trend of mesohigh looped network switch apparatus, be mainly reflected in high reliability, miniaturization, it is non-maintaining,
In terms of intellectuality.However, for conventional air-insulated metal-enclosed switchgear, high reliability and miniaturization are relative lances
Shield., can rationally to solve this contradiction, it is necessary to consider to be changed to the exposed air insulation of air into the interior insulation of closing space
High reliability is taken into account, miniaturization can be realized again.Based on this theory, many enterprises are proposed using sulfur hexafluoride gas and are used as envelope
Hold one's breath the sulfur hexafluoride gas-insulating switchgear of case dielectric.But because sulfur hexafluoride gas is decided to be restricted greenhouse
Gas, thus in High-voltage Switchgear Industry, should try one's best and reduce the consumption and discharge capacity of sulfur hexafluoride gas, or use other environment-friendly types
Medium replaces sulfur hexafluoride gas.In alternative environment-friendly type gas, based on nitrogen and drying compressed air, such gas
Body is easily obtained, the features such as with low cost, safe and reliable, environmental protection.But in view of the oxygen in air, moisture to electricity
Contact position has oxidation, corrosiveness, and preferably nitrogen is used as the supporting environmentally friendly gas of ring main unit.
For environmentally friendly gas cabinet, technological difficulties are the dynamic sealing performance for how ensureing flange reel, while balanced gas tank
Internal magnetic distribution.
It is a kind of attachment means to seal reel, is fixed on gas tank, and one end is located inside gas tank, is connected with main switch main shaft
Connect, other end is located at outside gas tank, is connected with operating mechanism main shaft.During ring main unit main switch combined floodgate sub-switching operation, pass through behaviour
Make the rotation of mechanism rotating shaft, drive sealing reel main axis, it is final to drive switch spindle to rotate, realize the on/off switch behaviour of switch
Make.As can be seen here, sealing reel should possess rotation, sealing, not influence the functions such as gas tank built-in field.
Current programme uses the sealing reel of traditional sense, in operation, can drive flange rotary and main axis, be driven
It is easily eccentric when torque is uneven, gas tank internal gas is caused along eccentric outside micro-leakage；It is such to seal reel to evade
Interference to gas tank built-in field, generally requires to adjust the size of gas tank internal switch to gas tank depth direction, increases gas
Case depth dimensions；To avoid electric discharge phenomena, the main shaft that sealing reel is extended to inside gas tank needs special shape and specially treated.
The content of the invention
It is an object of the invention to provide a kind of entirety is multi-sealed, power transmission shaft is difficult eccentric and easy to process environmentally friendly looped network
Cabinet magnet fluid sealing reel.
In order to solve the above technical problems, the object of the present invention is achieved like this：A kind of environmentally friendly ring involved in the present invention
Net cabinet magnet fluid sealing reel, its one end is fixedly connected with the main switch main shaft inside gas tank, and its other end is fixedly connected with behaviour
Make mechanism main shaft, including：Power transmission shaft and the housing for being internally provided with endoporus；The power transmission shaft has annular groove, annular groove
Interior to be filled with magnetic fluid, the annular groove both sides are provided with bearing, and bearing holder (housing, cover) is mounted on power transmission shaft, and positioned at the internal layer of housing,
Pole shoe is provided between the housing and annular groove, pole shoe is fixedly mounted on housing, permanent magnet is provided between adjacent pole shoe；Institute
Stating shell one end has provided with sealing ring in concave station, concave station, and the housing other end is provided with end cap, and end cap is connected with housing by screw
Connect.
It is used as further scheme of the invention：Provided with positioning bushing between the bearing and pole shoe, positioning bushing is sleeved on
On power transmission shaft.
It is used as further scheme of the invention：The sealing ring is O-shaped rubber seal.
It is used as further scheme of the invention：Mounting hole is additionally provided with the housing.
It is used as further scheme of the invention：The end of the power transmission shaft has rounding, and the power transmission shaft uses spline
Axle.
The beneficial effects of the invention are as follows：Environmentally friendly ring main unit magnet fluid sealing reel involved in the present invention is by the way that housing is welded
It is connected on gas tank front panel and is fixed by stud, sealing ring is brought into close contact gas tank surface of steel plate using " O " type rubber seal；It is logical
Cross stud and nut realizes the tight fit of sealing reel；Drive axis is improved by bearing, magnetic fluid, permanent magnet, pole shoe
When force dispersion and sealing vacancy fast leveling, filling；Reel its magnetic fluid, permanent magnet, pole shoe are sealed, by increasing magnetic strength
Line improves the magnetic distribution of surrounding, eliminates interference of the sealing reel to gas tank electromagnetic field；Its power transmission shaft of sealing reel, without
Special, using end rounding, power transmission shaft is the mode of splined shaft.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Description of reference numerals：1st, gas tank steel plate；2nd, power transmission shaft；3rd, housing；4th, annular groove；5th, bearing；6th, pole shoe；7th, permanent magnetism
Body；8th, concave station；9th, sealing ring；10th, end cap；11st, mounting hole；12nd, bushing is positioned.
Embodiment
The present invention is further described with preferred embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the environmentally friendly ring main unit magnet fluid sealing reel involved by the present embodiment, its one end, which is fixedly connected, to be located at
Main switch main shaft inside gas tank, its other end is fixedly connected with operating mechanism main shaft, including：Power transmission shaft 2 and in being internally provided with
The housing 3 in hole, the end of power transmission shaft 2 has rounding, and the power transmission shaft 2 uses splined shaft, simple in construction, easy to process；Institute
State and mounting hole 11 is additionally provided with housing 3, serve the effect that sealing reel is fixedly connected with gas tank steel plate 1.
The power transmission shaft 2, which has, is filled with magnetic fluid in annular groove 4, annular groove 4, the both sides of annular groove 4 are set
There is bearing 5, bearing 5 is sleeved on power transmission shaft 2, and positioned at the internal layer of housing 3, pole is provided between the housing 3 and annular groove 4
Boots 6, pole shoe 6 is fixedly mounted on housing 3, between adjacent pole shoe 6 be provided with permanent magnet 7, by bearing 5, magnetic fluid, permanent magnet 7,
Pole shoe 6 improves force dispersion and the fast leveling of sealing vacancy, filling, sealing reel its magnetic fluid, permanent magnetism when power transmission shaft 2 is rotated
Body 7, pole shoe 6, the magnetic distribution of surrounding is improved by increasing magnetic induction line, eliminates sealing reel and gas tank electromagnetic field is done
Disturb.
Described one end of housing 3, which has, is provided with sealing ring 9 in concave station 8, concave station 8, sealing ring 9 is O-shaped rubber seal, is passed through
The setting of concave station 8, the sealing ring 9 for setting different-diameter can be padded by facilitating in the installation of sealing ring 9, and concave station 8, practical and convenient, be led to
The setting of sealing ring 9 is crossed, the effect being brought into close contact with gas tank steel plate 1 is served；The other end of housing 3 is provided with end cap 10, end cap
10 are connected by screw with housing 3.
As further scheme of the invention, provided with positioning bushing 12 between the bearing 5 and pole shoe 6, bushing 12 is positioned
It is sleeved on power transmission shaft 2, serves, the effect of accurate positioning easy for installation to part.
In the present embodiment, it is to avoid during drive axis, the hidden danger of gas tank gas is leaked；Set by new structure
Meter, improves seal shaft disk area magnetic distribution；New structure reduces power transmission shaft to gas tank effect of depth, and employs magnetic
Fluid Sealing, adds sealing ring and bearing double design, and allomeric function is perfect, practical.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of environmentally friendly ring main unit magnet fluid sealing reel, its one end is fixedly connected with the main switch main shaft inside gas tank, its
The other end is fixedly connected with operating mechanism main shaft, it is characterised in that including：Power transmission shaft（2）With the housing for being internally provided with endoporus
（3）；The power transmission shaft（2）With annular groove（4）, annular groove（4）It is interior to be filled with magnetic fluid, the annular groove（4）Two
Side is provided with bearing（5）, bearing（5）Positioned at housing（3）Internal layer and be set in power transmission shaft（2）, the housing（3）It is recessed with annular
Groove（4）Between be provided with pole shoe（6）, pole shoe（6）It is fixedly mounted on housing（3）On, adjacent pole shoe（6）Between be provided with permanent magnet（7）；
The housing（3）One end has concave station（8）, concave station（8）It is interior to be provided with sealing ring（9）, housing（3）The other end is provided with end cap
（10）, end cap（10）With housing（3）It is connected by screw.
2. environmentally friendly ring main unit magnet fluid sealing reel according to claim 1, it is characterised in that：The bearing（5）With pole
Boots（6）Between provided with positioning bushing（12）, position bushing（12）It is sleeved on power transmission shaft（2）On.
3. environmentally friendly ring main unit magnet fluid sealing reel according to claim 1, it is characterised in that：The sealing ring（9）For O
Type rubber seal.
4. environmentally friendly ring main unit magnet fluid sealing reel according to claim 1, it is characterised in that the housing（3）It is upper to go back
It is provided with mounting hole（11）.
5. environmentally friendly ring main unit magnet fluid sealing reel according to claim 1, it is characterised in that the power transmission shaft（2）'s
End has rounding, the power transmission shaft（2）Using splined shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253673.1A CN106972398A (en) | 2017-04-18 | 2017-04-18 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253673.1A CN106972398A (en) | 2017-04-18 | 2017-04-18 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106972398A true CN106972398A (en) | 2017-07-21 |
Family
ID=59332904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710253673.1A Pending CN106972398A (en) | 2017-04-18 | 2017-04-18 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106972398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109894A (en) * | 2021-11-05 | 2022-03-01 | 英飞同仁(江苏)风机有限公司 | Impeller shaft disc for fan assembly |
| CN115000869A (en) * | 2022-05-20 | 2022-09-02 | 山东汇能电气有限公司 | Aerify cabinet air chamber seal structure and aerify cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447583Y (en) * | 2000-11-03 | 2001-09-12 | 罗喜梅 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
| CN201234080Y (en) * | 2008-07-31 | 2009-05-06 | 江苏宝胜电气股份有限公司 | Reciprocating sealing piece for inflating compartment direct-action type circuit breaker |
| CN103591148A (en) * | 2013-08-16 | 2014-02-19 | 天才诺尔顿精密机械(北京)有限公司 | Rotary seal device of farm machinery |
| CN204387332U (en) * | 2015-01-09 | 2015-06-10 | 苏州磁亿电子科技有限公司 | Device for sealing magnetic fluid |
| CN206789969U (en) * | 2017-04-18 | 2017-12-22 | 嘉兴市恒创电力设备有限公司 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
-
2017
- 2017-04-18 CN CN201710253673.1A patent/CN106972398A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447583Y (en) * | 2000-11-03 | 2001-09-12 | 罗喜梅 | Magnetofluid sealing device for vacuum equipment driving shaft capable of forced cooling |
| CN201234080Y (en) * | 2008-07-31 | 2009-05-06 | 江苏宝胜电气股份有限公司 | Reciprocating sealing piece for inflating compartment direct-action type circuit breaker |
| CN103591148A (en) * | 2013-08-16 | 2014-02-19 | 天才诺尔顿精密机械(北京)有限公司 | Rotary seal device of farm machinery |
| CN204387332U (en) * | 2015-01-09 | 2015-06-10 | 苏州磁亿电子科技有限公司 | Device for sealing magnetic fluid |
| CN206789969U (en) * | 2017-04-18 | 2017-12-22 | 嘉兴市恒创电力设备有限公司 | A kind of environmentally friendly ring main unit magnet fluid sealing reel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109894A (en) * | 2021-11-05 | 2022-03-01 | 英飞同仁(江苏)风机有限公司 | Impeller shaft disc for fan assembly |
| CN114109894B (en) * | 2021-11-05 | 2024-07-12 | 英飞同仁(江苏)风机有限公司 | Impeller shaft disc for fan assembly |
| CN115000869A (en) * | 2022-05-20 | 2022-09-02 | 山东汇能电气有限公司 | Aerify cabinet air chamber seal structure and aerify cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |
|
| RJ01 | Rejection of invention patent application after publication |