CN108953605B - Ring seal structure with sealing surface extension - Google Patents
Ring seal structure with sealing surface extension Download PDFInfo
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- CN108953605B CN108953605B CN201810761024.7A CN201810761024A CN108953605B CN 108953605 B CN108953605 B CN 108953605B CN 201810761024 A CN201810761024 A CN 201810761024A CN 108953605 B CN108953605 B CN 108953605B
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- ring
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- adjusting
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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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a ring sealing structure with a sealing surface extension part, which structurally comprises a sealing ring adjusting device, a mounting ring and a clamping groove, and is characterized in that the size of an elastic sealing layer is controlled by mechanical transmission based on the prior art, the effect of fluid sealing can be well realized by arranging four one-way supporting sector plates in four directions of the elastic sealing layer, the magnetic mounting structure and a magnetic rotating mechanism can be driven to rotate under the control of an external adjusting ring, a transmission mechanism can be pushed to act on a contact ring structure, the sealing size can be controlled according to the actual situation under the drive of the mechanical transmission, the sealing ring assembly does not need to be replaced, the sealing structure with different sizes can be rapidly sealed, the operation is simple, and the time is not spent on replacing, the working efficiency is improved.
Description
Technical Field
The present invention relates to the field of sealing ring devices, and more particularly to a ring seal having an extended sealing surface.
Background
The sealing ring is an annular sealing element with a notch, and is abutted against the inner hole wall of a static element by the elasticity of the pressed ring to play a sealing role, the ring sealing structure ring is usually in an annular shape, a hole for passing fluid and axially arranged, two end faces opposite in axial direction, a radial inner surface and a radial outer surface are limited, generally, in industry, the sealing structure with different radial cross sections is used to obtain the sealing capacity for the change of different fluid flowing environments, the prior art needs a plurality of ring sealing structures with different cross sections for sealing for the change of different fluid flowing environments, but the process of carrying sealing structures with a plurality of sizes and replacing the sealing ring consumes time, the operation steps are complicated, the disassembly abrasion is large, and the working efficiency is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the ring sealing structure with sealing surface extension part comprises a sealing ring adjusting device, a mounting ring and a clamping groove, the bottom end of the sealing ring adjusting device is connected with one end of the mounting ring in an electric welding mode, the mounting ring is fixedly embedded with the mounting ring, the sealing ring adjusting device comprises an adjusting brake device, a supporting inner ring structure, a magnetic mounting structure, a magnetic rotating mechanism, a transmission mechanism, a contact ring structure and a fixed outer ring structure, the inner surface of the adjusting brake device is welded with one end of the magnetic mounting structure, the magnetic mounting structure is fixedly mounted inside the supporting inner ring structure in an electric welding mode, the magnetic mounting structure and the magnetic mounting structure are in interference fit together, the adjusting and braking device is excessively connected with the magnetic rotating mechanism through the magnetic mounting structure, and the transmission mechanism is excessively connected with the fixed outer ring structure through the contact ring structure.
As a further optimization of the technical scheme, the sealing ring adjusting device comprises an adjusting brake device, a supporting inner ring structure, a magnetic mounting structure, a magnetic rotating mechanism, a transmission mechanism, a contact ring structure and a fixed outer ring structure, wherein the inner surface of the adjusting brake device is welded with one end of the magnetic mounting structure, the magnetic mounting structure is fixedly mounted in the supporting inner ring structure in an electric welding manner, the magnetic mounting structure and the magnetic mounting structure are in interference fit, the adjusting brake device is excessively connected with the magnetic rotating mechanism through the magnetic mounting structure, and the transmission mechanism is excessively connected with the fixed outer ring structure through the contact ring structure.
As a further optimization of this technical scheme, the support inner ring structure include magnetism-isolating splint, fixed track ring, rail frid, support inner ring board, fixed shell, the one end of magnetism-isolating splint and the surface activity laminating of fixed track ring, the internal surface of fixed track ring glue mutually with the surface of rail frid, the internal surface of rail frid glue mutually with supporting inner ring board, the bottom fixed connection of support inner ring board on fixed shell, the surface of fixed track ring laminate mutually with the one end of magnetism mounting structure.
As the further optimization of this technical scheme, magnetism mounting structure include fixed mounting post, spliced pole, magnetic block, roller bearing, gyro wheel, the one end of fixed mounting post adopt the mode of electric welding and the internal surface of brake ring to weld mutually, the one end of spliced pole weld mutually with the bottom of magnetic block, the inside activity of magnetic block inlay and have the roller bearing, the surface of roller bearing laminate with the internal surface activity of gyro wheel, the magnetic block pass through magnetic action down with magnetic rotating mechanism interference fit together.
As a further optimization of this technical scheme, magnetism rotary mechanism include magnetism movable ball, swiveling wheel, installation axle, spliced pole, installation chassis, screw thread cylinder, the surface of magnetism movable ball be connected with the one end of spliced pole through the welded mode, the swiveling wheel nested with the installation axle, installation axle activity inlay on the spliced pole, the surface on installation chassis weld with the other end of spliced pole, the center on installation chassis install screw thread cylinder perpendicularly, screw thread cylinder pass through screw thread and drive mechanism interference fit.
As the further optimization of this technical scheme, drive mechanism including impel screw ring, ring mounting disc, impel collar, transfer line, spacing ring, transmission pivot, pivot mounting disc, impel screw ring pass through the ring mounting disc and impel the collar excessively to link together, impel the collar on the activity inlay have the transfer line, the spacing ring fixed weld in the surface of transmission pivot, the pivot mounting disc with the transmission pivot vertical mounting be in the same place, the transfer line be connected with contact ring structure.
As a further optimization of the technical scheme, the contact ring structure comprises an elastic sealing layer, a one-way supporting sector plate, a fixed contact ring and a contact inner friction layer, the elastic sealing layer is fixedly embedded in the elastic sealing layer, the contact inner friction layer is installed on the inner surface of the fixed contact ring, the elastic sealing layer is excessively connected with the contact inner friction layer through the fixed contact ring, and the outer surface of the fixed contact ring is welded with the fixed outer ring structure.
As a further optimization of the technical solution, the fixed outer ring structure includes a connection channel, an outer ring friction ring, and a fixed outer ring, the connection channel is installed inside the connection channel, and the outer ring friction ring is fixedly connected to the inner surface of the fixed outer ring by electric welding.
Advantageous effects
The invention relates to a ring sealing structure with a sealing surface extension part, which realizes the sealing effect on fluid through the ring sealing structure, can realize the fixing effect through the control on a sealing ring adjusting device and the adjustment of different sizes under the control of a mounting ring and a clamping groove, drives the brake ring to rotate under the rotation effect of an external adjusting ring, can enable the integral magnetic mounting structure to do circular motion under the fixing effect, can drive corresponding magnetic movable balls to start to move under the effects of a magnetism isolating splint and a magnetic block, can realize the rotation of a mounting chassis and a threaded cylinder under the connection transmission of a connecting column, can drive the movement of a propelling threaded ring under the action of threads, and realizes the size change of an elastic sealing layer under the matching of the propelling mounting ring, a transmission rod and a one-way supporting sector plate, sealing can be performed according to connecting assemblies with different section sizes.
Based on the prior art, the size control of the elastic sealing layer is controlled by mechanical transmission, the effect of fluid sealing can be well realized by arranging the four one-way supporting fan-shaped plates in four directions of the elastic sealing layer, the magnetic mounting structure and the magnetic rotating mechanism can be driven to rotate under the control of the external adjusting ring, the transmission mechanism can be pushed to act on the contact ring structure, the sealing size can be controlled, the size of the sealing size can be controlled according to the actual condition under the drive of the mechanical transmission, the sealing ring assembly does not need to be replaced, the sealing structure with different sizes can be rapidly sealed, the operation is simple, the time is not spent on replacing, and the working efficiency is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a ring seal arrangement having a sealing surface extension of the present invention;
FIG. 2 is a schematic sectional view of a sealing ring adjusting device according to the present invention;
FIG. 3 is a schematic side view of a cross-sectional structure of a seal ring adjusting device according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2;
FIG. 5 is a schematic diagram of a cross-sectional side view of a sealing ring adjusting device according to the present invention;
fig. 6 is a schematic sectional view of a sealing ring adjusting device in front view.
In the figure: a sealing ring adjusting device-1, a mounting ring-2, a clamping groove-3, an adjusting brake device-101, a supporting inner ring structure-102, a magnetic mounting structure-103, a magnetic rotating mechanism-104, a transmission mechanism-105, a contact ring structure-106, a fixed outer ring structure-107, an external adjusting ring-1011, an adjusting inner sawtooth-1012, a braking outer sawtooth-1013, a braking ring-1014, a magnetism isolating splint-1021, a fixed track ring-1022, a track groove plate-1023, a supporting inner ring plate-1024, a fixed housing-1025, a fixed mounting column-1031, a connecting column-1032, a magnetic block-1033, a roller-1034, a roller-1035, a magnetic movable ball-1041, a rotating wheel-1042, a clamping groove-1043, a connecting column-1044, a mounting shaft-1043, a mounting shaft-102, a magnetic mounting shaft-1035, a magnetic movable ball-1041, a rotating wheel-1042, a clamping groove-1043, a connecting column-1044, a regulating brake device-101, a supporting inner ring structure-102, a magnetic mounting structure-103, a magnetic rotating mechanism-104, a magnetic rotating mechanism-1022, a magnetic clamping mechanism-1023, a magnetic clamping mechanism, a clamping mechanism, The mounting device comprises a mounting base plate-1045, a threaded cylinder-1046, a pushing threaded ring-1051, a ring mounting plate-1052, a pushing mounting ring-1053, a transmission rod-1054, a limiting ring-1055, a transmission rotating shaft-1056, a rotating shaft mounting plate-1057, an elastic sealing layer-1061, a one-way supporting sector plate-1062, a fixed contact ring-1063, a contact inner friction layer-1064, a connecting channel-1071, an outer ring friction ring-1072 and a fixed outer ring-1073.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Examples
Referring to fig. 1-6, the present invention provides a ring seal structure with an extension portion of a sealing surface, the structure includes a seal ring adjusting device 1, a mounting ring 2, and a fastening groove 3, a bottom end of the seal ring adjusting device 1 is connected with one end of the mounting ring 2 by means of electric welding, the mounting ring 2 is fixedly embedded on the mounting ring 2, the seal ring adjusting device 1 includes an adjusting brake device 101, a supporting inner ring structure 102, a magnetic mounting structure 103, a magnetic rotating mechanism 104, a transmission mechanism 105, a contact ring structure 106, and a fixed outer ring structure 107, an inner surface of the adjusting brake device 101 is welded with one end of the magnetic mounting structure 103, the magnetic mounting structure 103 is fixedly mounted inside the supporting inner ring structure 102 by means of electric welding, the magnetic mounting structure 103 and the magnetic mounting structure 103 are in interference fit, the adjusting brake device 101 is excessively connected with the magnetic rotating mechanism 104 through the magnetic mounting structure 103, the transmission mechanism 105 is excessively connected with the fixed outer ring structure 107 through the contact ring structure 106, the sealing ring adjusting device 1 comprises the adjusting brake device 101, a support inner ring structure 102, a magnetic mounting structure 103, the magnetic rotating mechanism 104, the transmission mechanism 105, the contact ring structure 106 and the fixed outer ring structure 107, the inner surface of the adjusting brake device 101 is welded with one end of the magnetic mounting structure 103, the magnetic mounting structure 103 is fixedly mounted inside the support inner ring structure 102 in an electric welding mode, the magnetic mounting structure 103 and the magnetic mounting structure 103 are in interference fit, the adjusting brake device 101 is excessively connected with the magnetic rotating mechanism 104 through the magnetic mounting structure 103, and the transmission mechanism 105 is excessively connected with the fixed outer ring structure 107 through the contact ring structure 106, the supporting inner ring structure 102 comprises a magnetic separation clamping plate 1021, a fixed track ring 1022, a track groove plate 1023, a supporting inner ring plate 1024 and a fixed casing 1025, wherein one end of the magnetic separation clamping plate 1021 is movably attached to the outer surface of the fixed track ring 1022, the inner surface of the fixed track ring 1022 is glued with the outer surface of the track groove plate 1023, the inner surface of the track groove plate 1023 is glued with the supporting inner ring plate 1024, the bottom end of the supporting inner ring plate 1024 is fixedly connected to the fixed casing 1025, the outer surface of the fixed track ring 1022 is attached to one end of the magnetic mounting structure 103, the magnetic mounting structure 103 comprises a fixed mounting post 1031, a connecting post 1032, a magnetic block 1033, a roller 1034 and a roller 1035, one end of the fixed mounting post 1031 is welded with the inner surface of the brake ring 1014 in an electric welding manner, one end of the connecting post 1032 is welded with the bottom end of the magnetic block 1033, the inside activity of magnetism piece 1033 inlay and have roller 1034, the outer surface of roller 1034 laminate with the inner surface activity of gyro wheel 1035, magnetism piece 1033 be in the same place through magnetic action down with magnetism rotary mechanism 104 interference fit, magnetism rotary mechanism 104 include magnetism movable ball 1041, swiveling wheel 1042, installation axle 1043, spliced pole 1044, installation chassis 1045, screw thread cylinder 1046, the outer surface of magnetism movable ball 1041 be connected with the one end of spliced pole 1044 through the welded mode, swiveling wheel 1042 and installation axle 1043 nest mutually, installation axle 1043 activity inlay on the spliced pole 1044, the outer surface of installation chassis 1045 weld with the other end of spliced pole 1044, the center of installation chassis 1045 install screw thread cylinder 1046 perpendicularly, screw thread cylinder 1046 through screw thread and drive mechanism 105 interference fit, drive mechanism 105 including impelling screw thread ring 1051, The sealing device comprises a circular ring installation disc 1052, a pushing installation ring 1053, a transmission rod 1054, a limiting ring 1055, a transmission rotating shaft 1056 and a rotating shaft installation disc 1057, wherein the pushing thread circular ring 1051 is excessively connected with the pushing installation ring 1053 through the circular ring installation disc 1052, the transmission rod 1054 is movably embedded in the pushing installation ring 1053, the limiting ring 1055 is fixedly welded on the outer surface of the transmission rotating shaft 1056, the rotating shaft installation disc 1057 is vertically installed with the transmission rotating shaft 1056, the transmission rod 1054 is connected with a contact ring structure 106, the contact ring structure 106 comprises an elastic sealing layer 1061, a one-way supporting sector plate 1062, a fixed contact ring 1063 and a contact inner friction layer 1064, an elastic sealing layer 1061 is fixedly embedded in the elastic sealing layer 1061, a contact inner friction layer 1064 is installed on the inner surface of the fixed contact ring 1063, and the elastic sealing layer 1061 is excessively connected with the contact inner friction layer 1064 through the fixed contact ring 1063, the outer surface of the fixed contact ring 1063 is welded with the fixed outer ring structure 107, the fixed outer ring structure 107 includes a connecting passage 1071, an outer ring friction ring 1072 and a fixed outer ring 1073, the connecting passage 1071 is installed inside the connecting passage 1071, and the outer ring friction ring 1072 is fixedly connected to the inner surface of the fixed outer ring 1073 by electric welding.
The sealing effect on fluid is realized through the ring sealing structure, the sealing ring adjusting device 1 can be controlled to adjust different sizes, the fixing effect can be realized under the action of the mounting ring 2 and the clamping groove 3, the brake ring 1014 is driven to rotate under the rotation effect of the external adjusting ring 1011, the whole magnetic mounting structure 103 can do circular motion under the fixing effect, the corresponding magnetic movable balls 1041 can be driven to start motion under the action of the magnetism isolating clamp plate 1021 and the magnetic blocks 1033, the mounting base plate 1045 and the threaded cylinder 1046 can be rotated under the connection transmission of the connecting column 1044, the movement of the screw thread circular ring 1051 can be driven under the action of the screw thread, the size change can be realized for the elastic sealing layer 1061 under the coordination of the propulsion mounting ring 1053, the transmission rod 1054 and the one-way support sector plate 1062, sealing can be performed according to connecting assemblies with different section sizes.
The saw teeth of the invention refer to sharp teeth on the saw blade or animal teeth shaped or arranged as saw teeth or machine teeth.
The invention solves the problem that a plurality of ring sealing structures with different sections are needed for sealing the change of different fluid flowing environments, but the sealing structures with a plurality of sizes are needed to be carried, the process of replacing the sealing ring consumes time, the operation steps are complicated, the disassembly and abrasion are large, and the working efficiency is reduced. Thereby need not change seal ring subassembly and can realize sealing up to not unidimensional seal structure fast, easy operation need not spend the time and change, has improved work efficiency.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. Ring seal structure with sealing surface extension, its structure includes sealing ring adjusting device (1), collar (2), buckle groove (3), the bottom of sealing ring adjusting device (1) be connected with the one end of collar (2) through the mode of electric welding, collar (2) on fixed inlay have buckle groove (3), its characterized in that: the sealing ring adjusting device (1) comprises an adjusting brake device (101), a supporting inner ring structure (102), a magnetic mounting structure (103), a magnetic rotating mechanism (104), a transmission mechanism (105), a contact ring structure (106) and a fixed outer ring structure (107), wherein the inner surface of the adjusting brake device (101) is welded with one end of the magnetic mounting structure (103), the magnetic mounting structure (103) is fixedly mounted inside the supporting inner ring structure (102) in an electric welding mode, the adjusting brake device (101) is connected with the magnetic rotating mechanism (104) through the magnetic mounting structure (103), the transmission mechanism (105) is connected with the fixed outer ring structure (107) through the contact ring structure (106),
the adjusting and braking device (101) comprises an external adjusting ring (1011), an adjusting inner saw tooth (1012), a braking outer saw tooth (1013) and a braking ring (1014), wherein the inner surface of the external adjusting ring (1011) is fixedly connected with the adjusting inner saw tooth (1012) in an electric welding mode, the braking outer saw tooth (1013) and the adjusting inner saw tooth (1012) are mutually wedged together, the outer surface of the braking ring (1014) is fixedly installed with the braking outer saw tooth (1013) in a welding mode, the external adjusting ring (1011) is meshed with the braking outer saw tooth (1013) by adjusting the inner saw tooth (1012), the inner surface of the braking ring (1014) is connected with one end of the magnetic installation structure (103) in a welding mode, and the transmission mechanism (105) is positioned at the central position of the external adjusting ring (1011),
the supporting inner ring structure (102) comprises a magnetic separation clamping plate (1021), a fixed track ring (1022), a track groove plate (1023), a supporting inner ring plate (1024) and a fixed housing (1025), wherein one end of the magnetic separation clamping plate (1021) is movably attached to the outer surface of the fixed track ring (1022), the inner surface of the fixed track ring (1022) is glued with the outer surface of the track groove plate (1023), the inner surface of the track groove plate (1023) is glued with the supporting inner ring plate (1024), the bottom end of the supporting inner ring plate (1024) is fixedly connected to the fixed housing (1025), the outer surface of the fixed track ring (1022) is attached to one end of the magnetic mounting structure (103),
the magnetic mounting structure (103) comprises a fixed mounting column (1031), a connecting column (1032), a magnetic block (1033), a rolling shaft (1034) and a roller (1035), wherein one end of the fixed mounting column (1031) is welded with the inner surface of a brake ring (1014) in an electric welding mode, one end of the connecting column (1032) is welded with the bottom end of the magnetic block (1033), the rolling shaft (1034) is movably embedded in the magnetic block (1033), the outer surface of the rolling shaft (1034) is movably attached to the inner surface of the roller (1035), and the magnetic block (1033) is matched with the magnetic rotating mechanism (104) under the magnetic action,
the magnetic rotating mechanism (104) comprises a magnetic movable ball (1041), a rotating wheel (1042), an installation shaft (1043), a connecting column (1044), an installation base plate (1045) and a threaded cylinder (1046), wherein the outer surface of the magnetic movable ball (1041) is connected with one end of the connecting column (1044) in a welding mode, the rotating wheel (1042) is nested with the installation shaft (1043), the installation shaft (1043) is movably embedded in the connecting column (1044), the outer surface of the installation base plate (1045) is welded with the other end of the connecting column (1044), the threaded cylinder (1046) is vertically installed at the center of the installation base plate (1045), and the threaded cylinder (1046) is connected with the transmission mechanism (105) through threads,
the transmission mechanism (105) comprises a propelling thread circular ring (1051), a circular ring installation disc (1052), a propelling installation ring (1053), a transmission rod (1054), a limiting ring (1055), a transmission rotating shaft (1056) and a rotating shaft installation disc (1057), the propelling thread circular ring (1051) is connected with the propelling installation ring (1053) through the circular ring installation disc (1052), the transmission rod (1054) is movably embedded on the propelling installation ring (1053), the limiting ring (1055) is fixedly welded on the outer surface of the transmission rotating shaft (1056), the rotating shaft installation disc (1057) and the transmission rotating shaft (1056) are vertically installed together, and the transmission rod (1054) is connected with a contact ring structure (106),
the contact ring structure (106) comprises an elastic sealing layer (1061), a one-way supporting sector plate (1062), a fixed contact ring (1063) and a contact inner friction layer (1064), the one-way supporting sector plate (1062) is fixedly embedded in the elastic sealing layer (1061), the contact inner friction layer (1064) is installed on the inner surface of the fixed contact ring (1063), the elastic sealing layer (1061) is connected with the contact inner friction layer (1064) through the fixed contact ring (1063), the outer surface of the fixed contact ring (1063) is welded with the fixed outer ring structure (107),
the fixed outer ring structure (107) comprises a connecting channel (1071), an outer ring friction ring (1072) and a fixed outer ring (1073), wherein the outer ring friction ring (1072) is positioned inside the connecting channel (1071), and the outer ring friction ring (1072) is fixedly connected to the inner surface of the fixed outer ring (1073) in an electric welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761024.7A CN108953605B (en) | 2018-07-12 | 2018-07-12 | Ring seal structure with sealing surface extension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761024.7A CN108953605B (en) | 2018-07-12 | 2018-07-12 | Ring seal structure with sealing surface extension |
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| Publication Number | Publication Date |
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| CN108953605A CN108953605A (en) | 2018-12-07 |
| CN108953605B true CN108953605B (en) | 2021-07-20 |
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| CN201810761024.7A Active CN108953605B (en) | 2018-07-12 | 2018-07-12 | Ring seal structure with sealing surface extension |
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| CN110848392B (en) * | 2019-11-19 | 2021-11-19 | 潍柴动力股份有限公司 | Sealing structure and engine |
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| CN2475508Y (en) * | 2001-04-25 | 2002-02-06 | 协竑企业有限公司 | Precise micro-progressive straightening-up and shrinking device |
| CN202929357U (en) * | 2012-06-10 | 2013-05-08 | 竺浩飞 | World time clock |
| CN104989825B (en) * | 2015-06-24 | 2017-09-08 | 江苏国泉泵业制造有限公司 | A kind of gland seal device |
| CN207131112U (en) * | 2017-04-26 | 2018-03-23 | 彭博 | Adjustable supporting |
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