CN104676008B - Sealing mechanism - Google Patents
Sealing mechanism Download PDFInfo
- Publication number
- CN104676008B CN104676008B CN201510095623.6A CN201510095623A CN104676008B CN 104676008 B CN104676008 B CN 104676008B CN 201510095623 A CN201510095623 A CN 201510095623A CN 104676008 B CN104676008 B CN 104676008B
- Authority
- CN
- China
- Prior art keywords
- ring
- inner ring
- outer ring
- sealing mechanism
- sealing
- 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.)
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Classifications
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- 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
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/184—Tightening mechanisms
- F16J15/185—Tightening mechanisms with continuous adjustment of the compression of the packing
- F16J15/186—Tightening mechanisms with continuous adjustment of the compression of the packing using springs
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- 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
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/187—Self-aligning stuffing-boxes
-
- 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
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/24—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings with radially or tangentially compressed packing
Abstract
The invention relates to a sealing mechanism. The sealing mechanism comprises an inner ring, an outer ring, an elastic element and a flexible layer; the inner ring is used for being fixed on a transmission shaft, the outer ring is annular, the diameter of the outer ring is greater than the diameter of the inner ring, the outer ring sleeves the inner ring, and a gap is formed between the inner ring and the outer ring; the elastic element is arranged in the gap between the inner ring and the outer ring, and elastically abuts against the outer ring and the inner ring, and the inner ring and the outer ring can be rotated relatively; the gap between the inner ring and the outer ring is covered by the flexible layer. Since the sealing mechanism utilizes the elastic element to elastically abut against the outer ring and the inner ring, the relative positions of the inner ring and the outer ring can be adjusted. Even if the transmission shaft is deflected from the central position, the position of the inner ring of the sealing mechanism is also changed along with the transmission shaft, and thereby the sealing property of the sealing mechanism is effectively ensured; the sealing mechanism can be applied to various different mechanical transmissions to prevent the leakage of liquid such as lubricating oil.
Description
Technical field
The present invention relates to Sealing Technology, more particularly to a kind of sealing mechanism.
Background technology
In mechanical transmission fields, the required gear adopting of transmission is generally disposed in the fuel tank filling lubricating oil, transmission
Axle wears the through hole in fuel tank sidewall, is connected with gear.Gear is positioned in lubricating oil, is effectively reduced rubbing between gear
Wear consumption.
In order to prevent gap between the through hole fuel tank sidewall and power transmission shaft for the lubricating oil from spilling, power transmission shaft and fuel tank side
It is provided with sealing ring between through hole on wall.Constantly rub between sealing ring meeting and power transmission shaft.Due to a variety of causes, power transmission shaft exists
The extruding degree that the contact surface of the position that partly can not possibly be in absolute middle in through hole, sealing ring and power transmission shaft is subject to is not
With the little position of stress easily produces the leakage of lubricating oil, and when especially tank pressure is larger, leakage is more serious.
Content of the invention
Based on this it is necessary to provide a kind of sealing mechanism of the oil leak effectively preventing in fuel tank.
A kind of sealing mechanism, comprising:
For the inner ring being fixed on power transmission shaft, described inner ring is ring-type；
Outer ring, is ring-type, described outer ring with diameter greater than described inner ring, described outer ring is sheathed on outside described inner ring, and institute
State formation space between inner ring and described outer ring；
Elastic component, described elastic component is arranged at the gap between inner ring and described outer ring, and elasticity supports described outer ring
And described inner ring, and can relatively rotate between described inner ring and described outer ring；And
Flexible layer, the space between described inner ring and described outer ring is covered by described flexible layer.
Wherein in an embodiment, described elastic component is clockwork spring, the side of described clockwork spring and described outer ring
It is connected, opposite side is connected with described inner ring.
Wherein in an embodiment, the section of described clockwork spring is circular cross-section, square-section or odd-shaped cross section.
Wherein in an embodiment, also include sealing ring, described sealing ring is fixed on the medial surface of described inner ring.
Wherein in an embodiment, the section of described inner ring becomes " l " character form structure, and the medial surface of described inner ring surrounds recessed
Groove, described sealing ring is arranged in described groove.
Wherein in an embodiment, also include trim ring, described trim ring is fixed on described inner ring, and by described sealing ring
Compression.
Wherein in an embodiment, also include threaded fastener, described inner ring offers screw, described trim ring is opened
Be provided with through hole, described threaded fastener wears described through hole, and be screwed with described screw so that described trim ring be fixed on described
On inner ring.
Wherein in an embodiment, described outer ring offers installing hole.
Wherein in an embodiment, described elastic component is set in inside described flexible layer.
Wherein in an embodiment, described inner ring is rubber inner ring；And/or, described outer ring is rubber outer ring；And/or,
Described flexible layer is rubber flexible layer.
Above-mentioned sealing mechanism, supports inner ring and outer ring by elastic component elasticity so that the relative position of inner ring and outer ring can
To adjust.When inner ring is arranged on power transmission shaft, even if power transmission shaft off-center position, the position of its inner ring can also be with axle
It is changed, the sealing property of above-mentioned sealing mechanism has been effectively ensured, can apply to various different mechanical driving devices, prevent
Stop the leakage of the liquid such as lubricating oil in mechanical driving device.
Brief description
Fig. 1 is the structural representation of the sealing mechanism in one embodiment of the invention；
Fig. 2 is the sectional view of sealing mechanism shown in Fig. 1；
Fig. 3 is the part sectioned view of sealing mechanism shown in Fig. 1；
Fig. 4 is the explosive view of sealing mechanism shown in Fig. 1；
Fig. 5 is the structural representation of another angle of sealing mechanism shown in Fig. 1.
Specific embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing
Give the better embodiment of the present invention.But, the present invention can realize however it is not limited to herein in many different forms
Described embodiment.On the contrary, providing the purpose of these embodiments to be to make the disclosure is understood more
Plus it is thoroughly comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ",
For illustrative purposes only, being not offered as is unique embodiment for " right " and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention
The implication that technical staff is generally understood that is identical.The term being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body is it is not intended that in limiting the present invention.Term as used herein " and/or " include one or more
The arbitrary and all of combination of related Listed Items.
See also Fig. 1 and Fig. 2, the sealing mechanism 100 in one embodiment of the invention, including inner ring 110, outer ring 120,
Elastic component 130 and flexible layer 140.
Inner ring 110 is used for being fixed on the power transmission shaft (not shown) of outside, mutually seals between power transmission shaft and inner ring 110, interior
Circle 110 rotates with the rotation of power transmission shaft.Inner ring 110 is rubber inner ring, so that inner ring 110 possesses certain mechanical strength,
It is provided simultaneously with good sealing.
Outer ring 120 is similarly circulus.Outer ring 120 with diameter greater than inner ring 110.Outer ring 120 is sheathed on inner ring 110
Outward, form space and between inner ring 110 and outer ring 120.Outer ring 120 is used for being fixed on the stationary plane of outside frame for movement, for example,
When above-mentioned sealing mechanism 100 is used in the fuel tank of loading gear, power transmission shaft wears the shaft hole in fuel tank sidewall, and outer ring 120 is solid
On the side wall of axis hole periphery.
Specifically, outer ring 120 offers installing hole 122.Installing hole 122 is multiple, and multiple installing holes 122 are distributed in outer
On circle 120.Sealing mechanism 100 may also include fixture (not shown), and fixture wears installing hole 122, and outer ring 120 is fixing
On outside stationary plane.Outer ring 120 is rubber outer ring, so that outer ring 120 possesses certain mechanical strength, is provided simultaneously with good
Good sealing.
Elastic component 130 is arranged at the gap between inner ring 110 and outer ring 120, and elasticity supports outer ring 120 and inner ring
110.Can relatively rotate between inner ring 110 and outer ring 120.
Specifically in the present embodiment, see also Fig. 3, elastic component 130 is clockwork spring 130.The one of clockwork spring 130
Side is connected with outer ring 120, and opposite side is connected with inner ring 110.Clockwork spring 130 is vortex-like spring, and clockwork spring 130 is being subject to
During power, clockwork spring 130 produces in own layer and reverses, to produce torsion in its plane.Clockwork spring is passed through in outer ring 120
130 are connected with inner ring 110, both can keep the annexation between outer ring 120 and inner ring 110, can make again inner ring 110 with
Outer ring 120 can be movable relatively.
The section of clockwork spring 130 is circular cross-section, square-section or odd-shaped cross section, if the section of clockwork spring 130 is
During odd-shaped cross section, its section concretely I-shaped or " ten " font etc..Clockwork spring 130 can be according to specific applied field
Close with using corresponding cross sectional shape, to change the size of its elastic force.
It is appreciated that above-mentioned clockwork spring 130 also can be replaced by other types of elastic component 130, only need this elastic component 130
Disclosure satisfy that and be connected between inner ring 110 and outer ring 120, and the relation that can be movable relatively can be kept.
Space between inner ring 110 and outer ring 120 is covered by flexible layer 140.Flexible layer 140 can be by inner ring 110 and outer ring
Gap seals between 120 get up, and prevent lubricating oil from flowing out between inner ring 110 and outer ring 120.Meanwhile, flexible layer 140 possesses
Good flexibility, to ensure to can be movable relatively between inner ring 110 and outer ring 120.
Specifically, flexible layer 140 is rubber flexible layer.Elastic component 130 is set in inside flexible layer 140.It is appreciated that inner ring
110th, outer ring 120 or flexible layer 140 also can be made up of the material that other suitably possesses sealing property, are not limited to elastomeric material.
Further, since inner ring 110 is arranged on power transmission shaft, with drive axis, occur between inner ring 110 and outer ring 120
Relatively rotate, flexible layer 140 and clockwork spring 130 all possess certain wearability, to resist long friction.
Inner ring 110 and outer ring 120 are supported by elastic component 130 elasticity so that the relative position of inner ring 110 and outer ring 120
Can adjust, when inner ring 110 is arranged on power transmission shaft, even if power transmission shaft deviates the center of axis hole, the position of its inner ring 110
Put can also being changed with axle, the sealing of above-mentioned sealing mechanism 100 has been effectively ensured, has prevented the lubricating oil in fuel tank from letting out
Leakage.
See also Fig. 4, sealing mechanism 100 also includes sealing ring 150, sealing ring 150 is fixed on the inner side of inner ring 110
On face.Inner ring 110 is contacted with power transmission shaft by sealing ring 150, to strengthen the sealing property between inner ring 110 and power transmission shaft.
Specifically, see also Fig. 2 and Fig. 4, the section of inner ring 110 becomes " l " character form structure, the medial surface of inner ring 110
Surround groove 112, sealing ring 150 is arranged in groove 112.
See also Fig. 3 and Fig. 5, sealing mechanism 100 may also include trim ring 160, trim ring 160 is fixed on inner ring 110,
And sealing ring 150 is compressed.Specifically in the present embodiment, above-mentioned sealing mechanism 100 also includes threaded fastener 170, inner ring 110
On offer screw 114, trim ring 160 offers through hole (not shown), threaded fastener 170 wears through hole, and with screw 114
It is screwed, so that trim ring 160 is fixed on inner ring 110.
Above-mentioned sealing mechanism 100, supports inner ring 110 and outer ring 120 by elastic component 130 elasticity so that inner ring 110 is with outward
The relative position of circle 120 can adjust, when inner ring 110 is arranged on power transmission shaft, even if power transmission shaft off-center position, in it
Circle 110 position can also being changed with axle, the sealing property of above-mentioned sealing mechanism 100 has been effectively ensured, can apply
In various different mechanical driving devices, prevent the leakage of the liquid such as lubricating oil in mechanical driving device.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (5)
1. a kind of sealing mechanism is it is characterised in that include:
For the inner ring being fixed on power transmission shaft, described inner ring is ring-type；
Outer ring, is ring-type, the diameter with diameter greater than described inner ring of described outer ring, and described outer ring is sheathed on outside described inner ring, and
Form space between described inner ring and described outer ring；
Elastic component, described elastic component is arranged at the gap between inner ring and described outer ring, and elasticity supports described outer ring and institute
State inner ring, and can relatively rotate between described inner ring and described outer ring；And
Flexible layer, the space between described inner ring and described outer ring is covered by described flexible layer；
Described sealing mechanism also includes sealing ring, and described sealing ring is fixed on the medial surface of described inner ring；
The section of described inner ring becomes " l " character form structure, and the medial surface of described inner ring surrounds groove, and described sealing ring is arranged at described
In groove；
Described sealing mechanism also includes trim ring, and described trim ring is fixed on described inner ring, and described sealing ring is compressed；
Described sealing mechanism also includes threaded fastener, and described inner ring offers screw, and described trim ring offers through hole, institute
State threaded fastener and wear described through hole, and be screwed with described screw, so that described trim ring is fixed on described inner ring；
Described elastic component is clockwork spring, and the side of described clockwork spring is connected with described outer ring, opposite side and described inner ring
It is connected.
2. sealing mechanism according to claim 1 is it is characterised in that the section of described clockwork spring is circular cross-section, square
Tee section or odd-shaped cross section.
3. sealing mechanism according to claim 1 is it is characterised in that offer installing hole on described outer ring.
4. sealing mechanism according to claim 1 is it is characterised in that described elastic component is set in inside described flexible layer.
5. sealing mechanism according to claim 1 is it is characterised in that described inner ring is rubber inner ring；And/or, described outer
Enclose as rubber outer ring；And/or, described flexible layer is rubber flexible layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095623.6A CN104676008B (en) | 2015-03-03 | 2015-03-03 | Sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095623.6A CN104676008B (en) | 2015-03-03 | 2015-03-03 | Sealing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676008A CN104676008A (en) | 2015-06-03 |
| CN104676008B true CN104676008B (en) | 2017-01-18 |
Family
ID=53311435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095623.6A Active CN104676008B (en) | 2015-03-03 | 2015-03-03 | Sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676008B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404517A (en) * | 2017-08-15 | 2019-03-01 | 舍弗勒技术股份两合公司 | Sealing element and speed changer |
| CN113586719B (en) * | 2021-07-30 | 2023-10-03 | 天津爱思达新材料科技有限公司 | Sealing structure for oil cover of auxiliary oil tank of airplane |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479509A (en) * | 2006-06-16 | 2009-07-08 | 株式会社小松制作所 | Floating seal |
| CN101696731A (en) * | 2009-09-30 | 2010-04-21 | 李雄 | Two-way contact type shaft seal ring |
| CN202048200U (en) * | 2011-04-27 | 2011-11-23 | 四川精通电气设备有限公司 | Precise slip-ring oil-leak-prevention sealing structure |
| CN103174836A (en) * | 2013-03-14 | 2013-06-26 | 自贡鑫剑密封科技有限公司 | Graphite packing loop and seal assembly thereof |
| CN203421164U (en) * | 2013-09-02 | 2014-02-05 | 浙江金锋自动化仪表有限公司 | Energy-saving sealing ring |
| CN203703138U (en) * | 2013-11-11 | 2014-07-09 | 中国航空动力机械研究所 | Mechanical sealing device |
| CN203868338U (en) * | 2014-05-29 | 2014-10-08 | 宁波东联密封件有限公司 | Mechanical sealing device for water pump |
| EP2801739A2 (en) * | 2013-05-10 | 2014-11-12 | FOCE Technology International B.V. | Gasket pressure sensor |
| CN204716982U (en) * | 2015-03-03 | 2015-10-21 | 深圳市长江机械设备有限公司 | Sealing mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9086131B2 (en) * | 2013-01-24 | 2015-07-21 | Silver Ii Us Holdings, Llc | Gearbox output seal |
-
2015
- 2015-03-03 CN CN201510095623.6A patent/CN104676008B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479509A (en) * | 2006-06-16 | 2009-07-08 | 株式会社小松制作所 | Floating seal |
| CN101696731A (en) * | 2009-09-30 | 2010-04-21 | 李雄 | Two-way contact type shaft seal ring |
| CN202048200U (en) * | 2011-04-27 | 2011-11-23 | 四川精通电气设备有限公司 | Precise slip-ring oil-leak-prevention sealing structure |
| CN103174836A (en) * | 2013-03-14 | 2013-06-26 | 自贡鑫剑密封科技有限公司 | Graphite packing loop and seal assembly thereof |
| EP2801739A2 (en) * | 2013-05-10 | 2014-11-12 | FOCE Technology International B.V. | Gasket pressure sensor |
| CN203421164U (en) * | 2013-09-02 | 2014-02-05 | 浙江金锋自动化仪表有限公司 | Energy-saving sealing ring |
| CN203703138U (en) * | 2013-11-11 | 2014-07-09 | 中国航空动力机械研究所 | Mechanical sealing device |
| CN203868338U (en) * | 2014-05-29 | 2014-10-08 | 宁波东联密封件有限公司 | Mechanical sealing device for water pump |
| CN204716982U (en) * | 2015-03-03 | 2015-10-21 | 深圳市长江机械设备有限公司 | Sealing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676008A (en) | 2015-06-03 |
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| C14 | Grant of patent or utility model | ||
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