CN105114630B - Rotary sealing ring - Google Patents
Rotary sealing ring Download PDFInfo
- Publication number
- CN105114630B CN105114630B CN201510595319.8A CN201510595319A CN105114630B CN 105114630 B CN105114630 B CN 105114630B CN 201510595319 A CN201510595319 A CN 201510595319A CN 105114630 B CN105114630 B CN 105114630B
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- sealing
- rotary
- friction
- seal ring
- 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.)
- Active
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The invention belongs to the technical field of sealing, and provides an axial strengthening structure which is uniformly distributed in the circumferential direction and is higher than the friction end face of a sealing ring, so that the integral rigidity and the thermal deformation resistance of the sealing ring are improved, the separation between the sealing ring and a sealing groove is realized, the friction end face friction of the sealing ring is effectively avoided, the friction temperature rise is reduced, and the thermal deformation of the sealing ring is reduced. The rotary seal ring according to the present invention is characterized in that: n axial open pores (3) are circumferentially and uniformly distributed on the friction end face (2) of the sealing ring (1) and are matched with reinforcing structures (4) protruding out of the friction end face of the sealing ring and embedded into the axial open pores, and n is a natural number not less than 4. The rotary sealing ring is used for rotary gap sealing under a high PV value, has the advantages of simple structure, strong designability, small friction resistance and long service life, is suitable for the technical field of fluid sealing, and is particularly suitable for a wet clutch high-pressure system.
Description
Technical Field
The invention belongs to the technical field of sealing, relates to a fluid sealing technology, and particularly relates to a sealing technology of a high-power transmission device.
Background
The high PV value rotary sealing element is one of key elements of a high-power transmission device, the requirement is to ensure stable oil pressure control in a wider working temperature range, the requirements of a modern gearbox on stable speed change and performance are higher and higher, the weight of parts is required to be lighter, the application performance of the traditional sealing rings made of materials such as cast iron and modified polytetrafluoroethylene reaches the limit, the sealing rings made of the cast iron material are seriously abraded to friction pairs under the action of centrifugal force under the condition of high rotating speed, the sealing rings made of the modified polytetrafluoroethylene material are easy to extrude and deform under the condition of high speed and high pressure and cannot meet the use requirement, the activation time of the sealing rings can be shortened due to the lower specific gravity of the sealing rings made of the composite material, and.
ZL 200820123553.6 discloses a rotary seal ring for a wet clutch, which reduces the effective pressure acting on the friction end face by forming a static pressure support annular groove and a damping hole on the friction end face, thereby increasing the working pressure of the rotary seal ring.
CN 201210356797x discloses a static/dynamic pressure double-effect floating seal ring, sets up the orifice of circumference evenly distributed on the sealing ring terminal surface, and the different rectangular channel of a plurality of radial degree of depth of circumference equipartition simultaneously realizes static/dynamic pressure effect, improves the lubricity, the stability of sealing ring, effective increase of service life.
Disclosure of Invention
The invention aims to provide a novel rotary sealing ring, which solves the problems of deformation and serious abrasion of the sealing ring caused by heat generation due to friction under a high-speed and high-pressure working condition and prolongs the service life of the sealing ring.
In order to achieve the purpose, the invention adopts the following technical scheme: the axial reinforcing structures which are circumferentially and uniformly distributed and higher than the friction end face of the sealing ring are arranged on the friction end face of the sealing ring, so that the overall rigidity and the heat deformation resistance of the sealing ring are improved, the separation between the sealing ring and the sealing groove is realized, the friction end face friction of the sealing ring is effectively avoided, the friction temperature rise is reduced, and the heat deformation of the sealing ring is reduced.
The rotary seal ring according to the present invention is characterized in that: n axial openings 3 are uniformly distributed on the friction end face 2 of the sealing ring 1 in the circumferential direction, the n axial openings are matched with reinforcing structures 4 protruding out of the friction end face of the sealing ring and embedded into the axial openings, n is a natural number not less than 4, and the structure is shown in the attached drawing 1.
The rotary seal ring according to the present invention is characterized in that: the reinforcing structure 4 is one of a conical or stepped cylindrical structure, and the structure is shown in the attached figures 2 and 3.
The rotary seal ring according to the present invention is characterized in that: the protruding height difference of the reinforcing structure 4 relative to the friction end surface 2 of the sealing ring is between 0.05mm and 0.5 mm.
The rotary seal ring according to the present invention is characterized in that: the section of the sealing ring is rectangular.
The rotary seal ring according to the present invention is characterized in that: the section of the sealing ring is in a right trapezoid shape or a step shape, the width difference between the outer circle and the inner circle is 0.05 mm-0.5 mm, and the surface 5 of the outer circle of the sealing ring is vertical to the non-friction end face 6.
The rotary seal ring according to the present invention is characterized in that: the outer circumferential surface 5 of the sealing ring is provided with a circumferential groove 7.
The rotary seal ring according to the present invention is characterized in that: the number of circumferential grooves 7 does not exceed 3.
The rotary seal ring according to the present invention is characterized in that: the depth of the circumferential groove 7 is 0.1 mm-0.2 mm, and the width is 0.1 mm-0.5 mm.
The rotary seal ring according to the present invention is characterized in that: the section of the circumferential groove 7 is rectangular or triangular.
The rotary seal ring according to the present invention is characterized in that: the friction end surface 2 and the excircle surface 5 of the sealing ring are waved surfaces with micron-sized wave amplitude, and the depth dimension is between 1 and 10 mu m.
The rotary seal ring according to the present invention is characterized in that: the friction end surface 2 and the excircle surface 5 of the sealing ring are subjected to shot blasting treatment.
The rotary seal ring according to the present invention is characterized in that: the reinforcing structure 4 is made of fiber reinforced resin matrix composite materials or ceramic materials.
The rotary sealing ring is used for rotary gap sealing under a high PV value, has the advantages of simple structure, strong designability, small friction resistance and long service life, is suitable for the technical field of fluid sealing, and is particularly suitable for a wet clutch high-pressure system.
Drawings
FIG. 1 is a schematic view of a rotary seal ring structure according to the present invention
FIG. 2 is a schematic cross-sectional view of a conical reinforced structure of a rotary seal ring according to the present invention
FIG. 3 is a schematic view of a cross-sectional structure of a stepped cylindrical reinforcement structure of a rotary seal ring according to the present invention
FIG. 4 is a schematic view of the assembly of the rotary seal ring with the conical reinforced structure according to the present invention
FIG. 5 is a schematic view of the assembly of another rotary seal ring with a conical reinforcing structure according to the present invention
FIG. 6 is a schematic view showing the assembly of a stepped cylindrical reinforced seal ring according to the present invention
Wherein: 1-sealing ring, 2-friction end face, 3-opening, 4-reinforcing structure, 5-excircle surface, 6-non-friction end face, 7-annular groove and 8-inner circle surface.
Detailed Description
The invention will be further described below by taking a seal ring with an outer diameter of 128mm as an example, but not by way of limitation.
Example one
The utility model provides an enhancement mode sealing ring, external diameter phi 128mm, internal diameter phi 120mm, the sealing ring cross-section is right trapezoid, excircle width dimension 3mm, circle width dimension 3.5mm in the sealing ring, the hoop slot is 2, the cross-section is the rectangle, the degree of depth is 0.2mm, the width is 0.3mm, sealing ring excircle surface is perpendicular with non-friction terminal surface, the structure is as shown in figure 2.
6 axial taper holes are uniformly distributed on the sealing ring (avoiding the lap joint opening) in the center and the circumferential direction, the diameter of a large end (a friction end surface) is 2.45mm, and the taper is 1: 20; the reinforcing structure is conical, the diameter of the large end of the reinforcing structure is 2.55mm, the taper is 1:20, the height of the reinforcing structure is 3.65mm, the reinforcing structure is embedded into a conical hole of the sealing ring, the reinforcing structure is compacted and ground, the friction end face and the excircle surface of the sealing ring are wavy faces with micron-sized wave amplitude, and the depth dimension is 5 microns, so that the sealing ring related to the invention is obtained.
When the sealing ring is assembled in the sealing groove, the side of the reinforcing structure protruding corresponds to the low-pressure side, and the assembling structure is shown in figure 4.
The sealing ring runs for 300h under the conditions that the sealing pressure is 2MPa and the rotating linear speed is 27m/s, and is well sealed, free of deformation and serious abrasion; when the sealing ring without the reinforced structural member operates for 120 hours under the same working condition, the sealing ring body is extruded into the fit clearance, and the sealing fails.
Example two
The utility model provides an enhancement mode sealing ring, external diameter phi 128mm, internal diameter phi 120mm, the sealing ring cross-section is right trapezoid, sealing ring excircle width size 3mm, the interior circle width size 3.5mm of sealing ring, the hoop slot is 2, the cross-section is equilateral triangle, the length of a side is 0.4mm, sealing ring excircle surface is perpendicular with non-friction terminal surface, the structure is as shown in figure 2.
9 axial stepped cylindrical holes are uniformly distributed in the middle of the sealing ring (avoiding the lap joint opening), the aperture of a small end is 1.95mm, the aperture of a large end is 2.45mm, a reinforced structural member is in a stepped cylindrical shape, the height of the first level is 2mm, the height of the second level is 1.65mm, the total height is 3.65mm, the diameter of the small end is 2mm, the diameter of the large end is 2.55mm, a reinforced structure is embedded into a corresponding hole of the sealing ring, the reinforced structural member is compacted and ground, and the friction end face and the excircle surface of the sealing ring are subjected to shot blasting treatment to obtain the sealing ring.
When the sealing ring is assembled in the sealing groove, the side of the reinforcing structural part higher than the sealing ring corresponds to the low-pressure side, and the assembling structure is shown in figure 4.
The sealing ring runs for 400 hours under the conditions that the sealing pressure is 2.5MPa and the rotating linear speed is 28m/s, and is well sealed, and has no deformation and no serious abrasion; when the sealing ring without the reinforced structural member runs for 100 hours under the same working condition, the sealing ring body is extruded into the fit clearance, and the sealing fails.
EXAMPLE III
An enhanced sealing ring is provided, the outer diameter phi is 128mm, the inner diameter phi is 120mm, the cross section of the sealing ring is stepped, the width of the outer circle is 3mm, the width of the inner circle of the sealing ring is 3.5mm, the size of the stepped part is phi 126mm, the cross section of a circumferential groove is rectangular, the number of the grooves is 1, the depth is 0.2mm, and the width is 0.5 mm; the structure is shown in figure 2.
4 axial taper holes are uniformly distributed on the sealing ring (avoiding the lap joint opening) in the center and the circumferential direction, the diameter of a large end (a friction end surface) is 2.45mm, and the taper is 1: 20; the reinforcing structure is conical, the diameter of the large end of the reinforcing structure is 2.55mm, the taper is 1:20, the height of the reinforcing structure is 3.65mm, the reinforcing structure is embedded into a conical hole of the sealing ring, the reinforcing structure is compacted and ground, the friction end face and the excircle surface of the sealing ring are wavy surfaces with micron-sized wave amplitude, and the depth dimension is 5 microns, so that the sealing ring related to the invention is obtained.
When the sealing ring is assembled in the sealing groove, the side of the reinforcing structure protruding corresponds to the low-pressure side, and the assembling structure is shown in fig. 5.
The sealing ring runs for 400 hours under the conditions that the sealing pressure is 2.5MPa and the rotating linear speed is 28m/s, and is well sealed, free of deformation and severe abrasion; when the sealing ring without the reinforced structural member runs for 100 hours under the same working condition, the sealing ring body is extruded into the fit clearance, and the sealing fails.
Example four
An enhanced sealing ring is 128mm in outer diameter and 120mm in inner diameter, the section of the sealing ring is rectangular, the width dimension is 3.5mm, the section of a circumferential groove is rectangular, the number of the circumferential groove is 2, the depth is 0.3mm, and the width is 0.3 mm; the structure is shown in figure 3.
9 axial stepped cylindrical holes are uniformly distributed in the middle of the sealing ring (avoiding the lap joint opening), the aperture of a small end is 1.95mm, the aperture of a large end is 2.45mm, a reinforced structural member is in a stepped cylindrical shape, the height of the first level is 2mm, the height of the second level is 1.65mm, the total height is 3.65mm, the diameter of the small end is 2mm, the diameter of the large end is 2.55mm, a reinforced structure is embedded into a corresponding hole of the sealing ring, the reinforced structural member is compacted and ground, and the friction end face and the excircle surface of the sealing ring are subjected to shot blasting treatment to obtain the sealing ring.
When the sealing ring is assembled in the sealing groove, the side of the reinforcing structural part higher than the sealing ring corresponds to the low-pressure side, and the assembling structure is shown in figure 6.
The sealing ring runs for 400 hours under the conditions that the sealing pressure is 2.5MPa and the rotating linear speed is 28m/s, and is well sealed, free of deformation and severe abrasion; when the sealing ring without the reinforced structural member runs for 100 hours under the same working condition, the sealing ring body is extruded into the fit clearance, and the sealing fails.
Claims (8)
1. The utility model provides a sealed rotary seal ring for clearance assembles in sealed slot, and the friction terminal surface is towards the low pressure side, a plurality of axial trompil of circumference equipartition n (3), its characterized in that on the friction terminal surface (2) of sealing ring (1): the axial opening (3) is internally provided with a reinforcing structure (4) which is matched with and protrudes out of the friction end surface of the sealing ring and is embedded into the axial opening to form an integral structure, and the protruding height of the reinforcing structure (4) is between 0.05mm and 0.5 mm; n is a natural number not less than 4; the section of the sealing ring is in a right trapezoid shape or a step shape, the width difference between an outer circle and an inner circle is 0.05 mm-0.5 mm, the size of the inner circle is larger than that of the outer circle, and the surface (5) of the outer circle of the sealing ring is vertical to the non-friction end face (6).
2. The rotary seal ring for sealing a rotary gap according to claim 1, wherein: the reinforcing structure (4) is one of a conical or stepped cylindrical structure.
3. The rotary seal ring for sealing a rotary gap according to any one of claims 1 or 2, wherein: the outer circle surface (5) of the sealing ring is provided with a circumferential groove (7).
4. The rotary seal ring for sealing a rotary gap according to claim 3, wherein: the number of the circumferential grooves (7) is not more than 3.
5. The rotary seal ring for sealing a rotary gap according to claim 3, wherein: the depth of the circumferential groove (7) is 0.1 mm-0.2 mm, and the width is 0.1 mm-0.5 mm.
6. The rotary seal ring for sealing a rotary gap according to claim 3, wherein: the section of the circumferential groove (7) is rectangular or triangular.
7. The rotary seal ring for sealing a rotary gap according to any one of claims 1 or 2, wherein: the friction end surface (2) and the excircle surface (5) of the sealing ring are waved surfaces with micron-sized wave amplitude, and the depth dimension is between 1 and 10 mu m.
8. The rotary seal ring for sealing a rotary gap according to any one of claims 1 or 2, wherein: the friction end surface (2) and the excircle surface (5) of the sealing ring are subjected to shot blasting treatment.
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 CN105114630A (en) | 2015-12-02 |
| CN105114630B true CN105114630B (en) | 2020-05-22 |
Family
ID=54662684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510595319.8A Active CN105114630B (en) | 2015-09-17 | 2015-09-17 | Rotary sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114630B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (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 |
| CN102865369B (en) * | 2012-09-24 | 2015-09-02 | 江苏大学 | A kind of fluctuate hermetical ring with static pressure and dynamic pressure double effect |
| CN103090006B (en) * | 2013-02-04 | 2014-04-16 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114630A (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7857322B2 (en) | Sealing ring | |
| CN105114630B (en) | Rotary sealing ring | |
| CN102042330A (en) | Laths combined type water-lubricated rubber alloy bearing | |
| CN107152456B (en) | Porous ultrasonic bearing | |
| CN102767624A (en) | Combined sealing part and kinematical sealing structure | |
| CN201461727U (en) | Polycrystalline diamond sliding thrust bearing assembly | |
| CN205089970U (en) | Rotary seal ring | |
| CN111441493B (en) | Viscous-viscoelastic composite damper | |
| CN102278483A (en) | Bidirectional deformation-type sealing ring | |
| US2802353A (en) | Fan drive insulator assembly | |
| US11391339B2 (en) | Lead-lag damper | |
| CN104533294B (en) | A kind of impact resistance high-mechanic roll-slide combined bearing | |
| CN113606140B (en) | Roller assembly, pump body assembly and compressor | |
| CN110118211B (en) | Square cylinder and sealing ring and sealing structure used in square cylinder | |
| CN112797048A (en) | Lightweight split type piston rod structure | |
| CN210318245U (en) | Piston left-hand thread structure for hydraulic release bearing | |
| CN101776147B (en) | Dynamic seal structure with automatic compensation function | |
| CN201836382U (en) | Thermoplastic polyurethane hydraulic seal ring | |
| CN207609685U (en) | Porous ultrasonic bearing | |
| CN107606156B (en) | Sealing gasket with built-in framework and circumferential sealing function | |
| CN214578800U (en) | Piston sealing structure for hydraulic cylinder | |
| CN218818150U (en) | Carbon ring assembly | |
| CN204436865U (en) | A kind of high-efficiency and energy-saving type filling-material structure of centrifugal pump | |
| CN101725713A (en) | Self-adapting medium pressure reciprocating dynamic sealing device | |
| CN210214414U (en) | High-strength friction roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |