CN105114630A - Rotary sealing ring - Google Patents
Rotary sealing ring Download PDFInfo
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- CN105114630A CN105114630A CN201510595319.8A CN201510595319A CN105114630A CN 105114630 A CN105114630 A CN 105114630A CN 201510595319 A CN201510595319 A CN 201510595319A CN 105114630 A CN105114630 A CN 105114630A
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- seal ring
- face
- sealing ring
- rotating seal
- sealing
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Abstract
The invention belongs to the technical field of sealing. Axial enhancing structures which are higher than a friction end face of a sealing ring body and distributed uniformly in the circumferential direction are arranged on the friction end face of the sealing ring body, and accordingly the overall rigidity and the heat deformation resistance capacity of the sealing ring body are improved, and the sealing ring body is separated from a sealing groove; friction of the friction end face of the sealing ring body is prevented effectively, the temperature raised by friction is reduced, and the heat deformation of the sealing ring boy is reduced. The invention relates to a rotary sealing ring which is characterized in that n axial holes (3) are formed in the friction end face (2) of the sealing ring body (1) in the circumferential direction uniformly; the n axial holes (3) are matched with the enhancing structures (4) which protrude from the friction end face of the sealing ring body and are embedded in the axial holes; n is a natural number not smaller than 4. The rotary sealing ring is used for sealing a rotation gap under high PV values; the sealing ring is simple in structure, high in designability, small in friction resistance, long in service life, applicable to the technical field of fluid sealing and particularly applicable to a high-pressure system of a wet clutch.
Description
Technical field
The invention belongs to technical field of sealing technology, relate to fluid seals technology, particularly severe duty drive sealing technique.
Background technique
High PV value rotating seal is one of severe duty drive key element, require in wider operating temperature range, ensure that oil pressure cntrol is stablized, the requirement of modern gearbox to steady speed change and performance is more and more higher, require that the weight of part is lighter, make traditional cast iron class, the application performance of the material seal rings such as modified Teflon class reaches capacity, under high speed conditions, cast iron materials seal ring is comparatively serious to friction pair wearing and tearing under the influence of centrifugal force, modified teflon material seal ring is easy extrusion deformation under high speed and high pressure condition, usage requirement can not be met, the proportion that composite material sealing ring is lower can shorten the activationary time of seal ring, be conducive to steady speed change.
ZL200820123553.6 discloses a kind of rotary sealing ring for wet clutch, supports circular groove and damping hole, reduce the effective pressure acted on abrasive end face, thus improve the working pressure of rotating seal ring by opening static pressure at abrasive end face.
CN201210356797x disclose a kind of quiet/fluctuate hermetical ring of dynamic pressure double effect, seal ring end face is offered circumferential equally distributed throttle orifice, the rectangle groove that the uniform multiple radial depth of circumference is different simultaneously, realize quiet/dynamic pressure effect, improve lubricity, the stability of seal ring, effectively increase the service life.
Summary of the invention
The object of the present invention is to provide a kind of Novel rotary seal ring, solve at high speed and high pressure operating mode lower sealing ring because frictional heat causes the problem of distortion and serious wear, improve seal ring operating life.
For achieving the above object, the present invention adopts following technological scheme: on seal ring abrasive end face, arrange the uniform axis higher than seal ring abrasive end face of circumference strengthen structure, improve the integral rigidity of seal ring and the ability of opposing thermal distortion, realize being separated between seal ring with sealed groove, effectively avoid the abrasive end face friction of seal ring, reduce friction Temperature Rise, reduce seal ring thermal distortion.
The rotating seal ring that the present invention relates to, it is characterized in that: a circumferential uniform n axial aperture 3 on the abrasive end face 2 of seal ring 1, coupling protrudes from seal ring abrasive end face, embed the enhancing structure 4, n of axial aperture be not less than 4 natural number, structure is as shown in Figure 1.
The rotating seal ring that the present invention relates to, is characterized in that: described enhancing structure 4 is conical or one in stepped cylindrical type structure, and structure is as shown in accompanying drawing 2,3.
The rotating seal ring that the present invention relates to, is characterized in that: described enhancing structure 4 is poor relative to the protrusion height of seal ring abrasive end face 2 between 0.05mm ~ 0.5mm.
The rotating seal ring that the present invention relates to, is characterized in that: seal ring cross section is rectangle.
The rotating seal ring that the present invention relates to, is characterized in that: seal ring cross section is right-angled trapezium or stepped shaft, and the stand out of cylindrical and inner circle is between 0.05mm ~ 0.5mm, and seal ring outer round surface 5 is vertical with non-model control end face 6.
The rotating seal ring that the present invention relates to, is characterized in that: seal ring outer round surface 5 arranges hoop groove 7.
The rotating seal ring that the present invention relates to, is characterized in that: the quantity of hoop groove 7 is no more than 3.
The rotating seal ring that the present invention relates to, is characterized in that: the degree of depth of described hoop groove 7 is 0.1mm ~ 0.2mm, and width is 0.1mm ~ 0.5mm.
The rotating seal ring that the present invention relates to, is characterized in that: the cross section of described hoop groove 7 is rectangle or triangle.
The rotating seal ring that the present invention relates to, is characterized in that: seal ring abrasive end face 2 and outer round surface 5 are the wavy surface of micron order wave amplitude, and depth dimensions is between 1 μm ~ 10 μm.
The rotating seal ring that the present invention relates to, is characterized in that: seal ring abrasive end face 2 and outer round surface 5 shot blast.
The rotating seal ring that the present invention relates to, is characterized in that: the material of described enhancing structure 4 is fiber-reinforced resin matrix compound material or stupalith.
The rotating seal ring that the present invention relates to, for the rotary gap sealing under high PV value, structure is simple, and designability is strong, and surface friction drag is little, long service life, is applicable to fluid seals technology field, is specially adapted to wet clutch high-pressure system.
Accompanying drawing explanation
The rotating seal ring structural representation that Fig. 1 the present invention relates to
The rotating seal ring cone type that Fig. 2 the present invention relates to strengthens structural profile structural representation
The rotating seal ring stepped cylindrical type that Fig. 3 the present invention relates to strengthens structural profile structural representation
The cone type that Fig. 4 the present invention relates to strengthens structure rotating seal ring assembling schematic diagram
The another kind of cone type that Fig. 5 the present invention relates to strengthens structure rotating seal ring assembling schematic diagram
The stepped cylindrical type that Fig. 6 the present invention relates to strengthens sealing structure ring assembling schematic diagram
Wherein: 1-seal ring, 2-abrasive end face, 3-perforate, 4-strengthens structure, 5-outer round surface, 6-non-model control end face, 7-annular groove, 8-internal circular surfaces.
Embodiment
Below for the seal ring of external diameter Φ 128mm, summary of the invention is described further, but not as the restriction to summary of the invention.
Embodiment one
A kind of enhancement mode seal ring, external diameter Φ 128mm, internal diameter Φ 120mm, seal ring cross section is right-angled trapezium, cylindrical width dimensions 3mm, seal ring inner circle width dimensions 3.5mm, hoop groove is 2, and cross section is rectangle, the degree of depth is 0.2mm, width is 0.3mm, and seal ring outer round surface is vertical with non-model control end face, and structure as shown in Figure 2.
Seal ring (avoids overlapping mouth) uniform 6 the axial cone shape holes of circumference placed in the middle, large end (abrasive end face) diameter 2.45mm, tapering 1:20; Strengthening structure adopts conical, Outside diameter 2.55mm, tapering 1:20, height 3.65mm, strengthen in the cone shape hole of structural embeddedness seal ring, compacting is also ground enhancing structural member, and seal ring abrasive end face and outer round surface are the wavy surface of micron order wave amplitude, depth dimensions 5 μm, obtains the seal ring that the present invention relates to.
When seal ring is assemblied in sealed groove, the side strengthening structure protrusion is corresponded to low voltage side, and assembly structure as shown in Figure 4.
Sealing ring, at sealing load 2MPa, runs 300h sealing intact, without distortion, without heavy wear under linear velocity 27m/s condition; When running 120h without the seal ring strengthening structural member under same working condition, seal ring body clamp-ons matching gap, seal failure.
Embodiment two
A kind of enhancement mode seal ring, external diameter Φ 128mm, internal diameter Φ 120mm, seal ring cross section is right-angled trapezium, seal ring cylindrical width dimensions 3mm, seal ring inner circle width dimensions 3.5mm, hoop groove is 2, and cross section is equilateral triangle, and the length of side is 0.4mm, seal ring outer round surface is vertical with non-model control end face, and structure as shown in Figure 2.
Seal ring (avoids overlapping mouth) uniform 9 the axial step cylindrical holes of circumference placed in the middle, small end aperture is 1.95mm, large stomidium footpath is 2.45mm, strengthen structural member and adopt stepped cylindrical shape, one-level height 2mm, secondary height 1.65mm, overall height 3.65mm, end diameter 2mm, Outside diameter 2.55mm, strengthens in the corresponding hole of structural embeddedness seal ring, and compacting is also ground enhancing structural member, seal ring abrasive end face and outer round surface shot blast structure, obtain the seal ring that the present invention relates to.
When seal ring is assemblied in sealed groove, correspond to low voltage side by strengthening structural member that side higher than seal ring, assembly structure as shown in Figure 4.
Sealing ring, at sealing load 2.5MPa, runs 400h sealing intact under linear velocity 28m/s condition, without distortion, without heavy wear; When running 100h without the seal ring strengthening structural member under same working condition, seal ring body clamp-ons matching gap, seal failure.
Embodiment three
A kind of enhancement mode seal ring, external diameter Φ 128mm, internal diameter Φ 120mm, seal ring cross section is stepped shaft, cylindrical width dimensions 3mm, seal ring inner circle width dimensions 3.5mm, ladder place is of a size of Φ 126mm, and hoop trench cross section is rectangle, quantity is 1, degree of depth 0.2mm, width 0.5mm; Structure as shown in Figure 2.
Seal ring (avoids overlapping mouth) uniform 4 the axial cone shape holes of circumference placed in the middle, large end (abrasive end face) diameter 2.45mm, tapering 1:20; Strengthening structure adopts conical, Outside diameter 2.55mm, tapering 1:20, height 3.65mm, strengthens in the cone shape hole of structural embeddedness seal ring, and compacting is also ground enhancing structural member, seal ring abrasive end face and outer round surface are the wavy surface of micron order wave amplitude, depth dimensions 5 μm, obtain the seal ring that the present invention relates to.
When seal ring is assemblied in sealed groove, the side strengthening structure protrusion is corresponded to low voltage side, and assembly structure as shown in Figure 5.
Sealing ring, at sealing load 2.5MPa, runs 400h sealing intact, without distortion, without heavy wear under linear velocity 28m/s condition; When running 100h without the seal ring strengthening structural member under same working condition, seal ring body clamp-ons matching gap, seal failure.
Embodiment four
A kind of enhancement mode seal ring, external diameter Φ 128mm, internal diameter Φ 120mm, seal ring cross section is rectangle, width dimensions 3.5mm, and hoop trench cross section is rectangle, and quantity is 2, degree of depth 0.3mm, width 0.3mm; Structure as shown in Figure 3.
Seal ring (avoids overlapping mouth) uniform 9 the axial step cylindrical holes of circumference placed in the middle, small end aperture is 1.95mm, large stomidium footpath is 2.45mm, strengthen structural member and adopt stepped cylindrical shape, one-level height 2mm, secondary height 1.65mm, overall height 3.65mm, end diameter 2mm, Outside diameter 2.55mm, strengthens in the corresponding hole of structural embeddedness seal ring, and compacting is also ground enhancing structural member, seal ring abrasive end face and outer round surface shot blast structure, obtain the seal ring that the present invention relates to.
When seal ring is assemblied in sealed groove, correspond to low voltage side by strengthening structural member that side higher than seal ring, assembly structure as shown in Figure 6.
Sealing ring, at sealing load 2.5MPa, runs 400h sealing intact, without distortion, without heavy wear under linear velocity 28m/s condition; When running 100h without the seal ring strengthening structural member under same working condition, seal ring body clamp-ons matching gap, seal failure.
Claims (11)
1. a rotating seal ring, it is characterized in that: the upper circumferential uniform n axial aperture (3) of the abrasive end face (2) in seal ring (1), coupling protrudes from seal ring abrasive end face, embeds the enhancing structure (4) of axial aperture, n be not less than 4 natural number.
2. rotating seal ring according to claim 1, is characterized in that: described enhancing structure (4) is conical or one in stepped cylindrical type structure.
3. the rotating seal ring according to claim 1 or 2 any one, is characterized in that: described enhancing structure (4) is poor between 0.05mm ~ 0.5mm relative to the protrusion height of seal ring abrasive end face (2).
4. the rotating seal ring according to claim 1 or 2 any one, is characterized in that: seal ring cross section is rectangle.
5. the rotating seal ring according to claim 1 or 2 any one, it is characterized in that: seal ring cross section is right-angled trapezium or stepped shaft, the stand out of cylindrical and inner circle is between 0.05mm ~ 0.5mm, and seal ring outer round surface (5) is vertical with non-model control end face (6).
6. the rotating seal ring according to claim 1 or 2 any one, is characterized in that: seal ring outer round surface (5) arranges hoop groove (7).
7. rotating seal ring according to claim 6, is characterized in that: the quantity of hoop groove (7) is no more than 3.
8. rotating seal ring according to claim 6, is characterized in that: the degree of depth of described hoop groove (7) is 0.1mm ~ 0.2mm, and width is 0.1mm ~ 0.5mm.
9. rotating seal ring according to claim 6, is characterized in that: the cross section of described hoop groove (7) is rectangle or triangle.
10. the rotating seal ring according to claim 1 or 2 any one, is characterized in that: the wavy surface that seal ring abrasive end face (2) and outer round surface (5) are micron order wave amplitude, depth dimensions is between 1 μm ~ 10 μm.
11. rotating seal rings according to claim 1 or 2 any one, is characterized in that: seal ring abrasive end face (2) and outer round surface (5) shot blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595319.8A CN105114630B (en) | 2015-09-17 | 2015-09-17 | Rotary sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595319.8A CN105114630B (en) | 2015-09-17 | 2015-09-17 | Rotary sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114630A true CN105114630A (en) | 2015-12-02 |
| CN105114630B CN105114630B (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510595319.8A Active CN105114630B (en) | 2015-09-17 | 2015-09-17 | Rotary sealing ring |
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| CN (1) | CN105114630B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185798A (en) * | 2019-06-24 | 2019-08-30 | 江苏省特种设备安全监督检验研究院 | A kind of self-sealed alloy double bellow seal Composition spacer |
| CN112324524A (en) * | 2020-11-03 | 2021-02-05 | 中国北方发动机研究所(天津) | Composite sealing ring of supercharger |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918726A (en) * | 1974-01-28 | 1975-11-11 | Jack M Kramer | Flexible seal ring |
| US6224063B1 (en) * | 1998-09-01 | 2001-05-01 | The Torrington Company | Seal pack |
| JP2003254437A (en) * | 2002-03-04 | 2003-09-10 | Teijin Seiki Co Ltd | Sliding seal structure |
| CN2679454Y (en) * | 2004-03-03 | 2005-02-16 | 王宝安 | Crossing wall pipeline sealing ring |
| CN101709718A (en) * | 2009-12-24 | 2010-05-19 | 中国航天科技集团公司第六研究院第十一研究所 | Sealed float ring of centrifugal pump with unloading channel |
| CN101846143A (en) * | 2010-06-23 | 2010-09-29 | 北京理工大学 | Seal ring with even-depth spiral groove on end face |
| CN102865369A (en) * | 2012-09-24 | 2013-01-09 | 江苏大学 | Floating sealing ring with double effects of static pressure and dynamic pressure |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN203214876U (en) * | 2013-05-02 | 2013-09-25 | 浙江新奥机械制造有限公司 | Seal ring |
| WO2015035625A1 (en) * | 2013-09-15 | 2015-03-19 | Gao Hanwen | Sealing ring maintaining gap |
| CN205089970U (en) * | 2015-09-17 | 2016-03-16 | 中国兵器工业集团第五三研究所 | Rotary seal ring |
-
2015
- 2015-09-17 CN CN201510595319.8A patent/CN105114630B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918726A (en) * | 1974-01-28 | 1975-11-11 | Jack M Kramer | Flexible seal ring |
| US6224063B1 (en) * | 1998-09-01 | 2001-05-01 | The Torrington Company | Seal pack |
| JP2003254437A (en) * | 2002-03-04 | 2003-09-10 | Teijin Seiki Co Ltd | Sliding seal structure |
| CN2679454Y (en) * | 2004-03-03 | 2005-02-16 | 王宝安 | Crossing wall pipeline sealing ring |
| CN101709718A (en) * | 2009-12-24 | 2010-05-19 | 中国航天科技集团公司第六研究院第十一研究所 | Sealed float ring of centrifugal pump with unloading channel |
| CN101846143A (en) * | 2010-06-23 | 2010-09-29 | 北京理工大学 | Seal ring with even-depth spiral groove on end face |
| CN102865369A (en) * | 2012-09-24 | 2013-01-09 | 江苏大学 | Floating sealing ring with double effects of static pressure and dynamic pressure |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN203214876U (en) * | 2013-05-02 | 2013-09-25 | 浙江新奥机械制造有限公司 | Seal ring |
| WO2015035625A1 (en) * | 2013-09-15 | 2015-03-19 | Gao Hanwen | Sealing ring maintaining gap |
| CN205089970U (en) * | 2015-09-17 | 2016-03-16 | 中国兵器工业集团第五三研究所 | Rotary seal ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185798A (en) * | 2019-06-24 | 2019-08-30 | 江苏省特种设备安全监督检验研究院 | A kind of self-sealed alloy double bellow seal Composition spacer |
| CN110185798B (en) * | 2019-06-24 | 2024-02-27 | 江苏省特种设备安全监督检验研究院 | Self-sealing alloy dual-corrugated sealing composite gasket |
| CN112324524A (en) * | 2020-11-03 | 2021-02-05 | 中国北方发动机研究所(天津) | Composite sealing ring of supercharger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114630B (en) | 2020-05-22 |
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