CN203374810U - Shaft rubber seal which is provided with fixing ring and designed in helical tooth arrangement interference mode - Google Patents
Shaft rubber seal which is provided with fixing ring and designed in helical tooth arrangement interference mode Download PDFInfo
- Publication number
- CN203374810U CN203374810U CN201320406845.1U CN201320406845U CN203374810U CN 203374810 U CN203374810 U CN 203374810U CN 201320406845 U CN201320406845 U CN 201320406845U CN 203374810 U CN203374810 U CN 203374810U
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- Prior art keywords
- rubber seal
- axle
- helical teeth
- seal
- retaining ring
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- Withdrawn - After Issue
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Abstract
The utility model provides a shaft rubber seal which is provided with a fixing ring and designed in a helical tooth arrangement interference mode. A plurality of helical teeth are arranged on an outer diameter contact surface or an inner diameter contact surface or both the outer diameter contact surface and the inner diameter contact surface of the shaft rubber seal, the outer diameter contact surface is designed in a cornice interference mode, and enough outer diameter compressing amount can be provided. Not only is a sealing effect between the shaft rubber seal and an equipment sealing cavity inner diameter or shaft guaranteed, but also floating elastic and grasping functions are achieved. The inner side surface or the outer side surface or both the two side surfaces of the shaft rubber seal can be provided with the fixing ring which can move relative to a main sealing ring of the shaft rubber seal, and therefore an additional vertical floating function of the main sealing ring of the shaft rubber ring is achieved. The helical teeth can incline towards the side of sealing fluid or opposite to the side of the sealing fluid or towards the both directions, so that the shaft rubber seal has floating elasticity by means of the design, and the static sealing effect and the floating effect are improved.
Description
Technical field
The utility model relates to a kind of axle rubber seal be applied in transmission device, be specifically related to a kind of helical teeth that carries retaining ring arrange the interference design, have and float and the promptly axle rubber seal of function.
Background technique
In transmission device, application rubber seal more widely comprises oil sealing, dust ring, the pull bar envelope, piston envelope etc., because the outside stationary plane in its footpath is that axle generally adopts plane or the fixing design of O circle with rubber seal external diameter surface of contact, perhaps a few cases has highly very little right-angle protrusion, only play the function of frictional property, its best magnitude of interference domain of walker is less, if magnitude of interference is bigger than normal, can cause difficulty is installed, and magnitude of interference meeting less than normal causes static seal to leak, even axle is known from experience the phenomenon of the transfer of skidding with rubber seal external diameter and equipment cavity.
Summary of the invention
It is the axle rubber seal that helical teeth is arranged the interference design that the purpose of this utility model is to provide the outside stationary plane in a kind of footpath, can effectively solve above-mentioned traditional axle and control by rubber seal magnitude of interference difficulty skidding and logy problem of causing, guarantee that axle is easy to install with rubber seal, seals reliable and firm position.And can beat at axle, swing in transmission device bigger than normal and use, guarantee the equipment operational reliability.
The utility model adopts following technological scheme:
A kind of helical teeth that carries retaining ring is arranged the axle rubber seal of interference design, the surface of contact of its external diameter surface of contact, internal diameter surface of contact or external diameter and internal diameter is provided with a plurality of helical teeth and is arranged in parallel, and axle adopts cornice formula interference design with the external diameter surface of contact of rubber seal, and having floats reaches promptly function.
Further technological scheme, described axle can be provided with retaining ring with inner side surface (by the sealant flow side), outer side surface (away from the sealant flow side) or this two sides of rubber seal main seal ring, retaining ring and axle be with relatively moving between the rubber seal main seal ring, thereby realize that the main seal ring in the middle of retaining ring has the function fluctuated.
The quantity of described helical teeth is more than 3 or 3, the angle of helical teeth and surface of contact all is less than 90 degree under free state and compressive state, can be for oblique towards fluid-encapsulated inclination, also fluid-encapsulated inclination is tiltedly arranged dorsad, also can comprise towards sealant flow side and two kinds of helical teeth on sealant flow side dorsad.The helical teeth radial height all is greater than 1 millimeter.
Further, the utility model also can adopt all-in-one-piece axle rubber seal, or axle is dissectd with rubber seal according to application demand, becomes the split-type shaft rubber seal.Axle also can be provided with one or more sealing lip sheets with the rubber seal internal diameter, forms the heat radiation chamber between the sealing lip sheet, and the lip sheet is oblique bending in the same way, also can the reversed dip bending.
Compared to existing technology, the utlity model has following advantage: the parallel helical teeth that (1) axle is greater than 1 millimeter by rubber seal external diameter design tooth depth, several external diameter potted lines have been increased, improved the static seal effect, and there is floating elastic and firmly grab wall power, towards fluid-encapsulated helical teeth, can utilize hydrodynamic pressure and cavity to be adjacent to sealing, fluid-encapsulated helical teeth can effectively prevent that axle from ejecting seal chamber with the pressure of the sealed fluid of rubber seal dorsad.(2) the cornice formula interference design of rubber seal external diameter for axle, when guaranteeing the external diameter decrement that provides larger, can not cause larger axle to shrink with the rubber seal internal diameter, can not have influence on the magnitude of interference of sealing lip and the control of radial force, guarantee that external diameter and equipment seal chamber internal diameter fit tightly sealing simultaneously, non-slip, and be easy to install.(3) the retaining ring design of rubber seal both sides for axle, can guarantee that axle directly radially fluctuates at retaining ring with the rubber seal main seal ring, adapts to the swing of acutely beating of axle.(4) axle can be dissectd and becomes the split-type shaft rubber seal with rubber seal, install while changing axle with rubber seal and do not need detaching equipment.
The accompanying drawing explanation
Fig. 1 is the rubber sealing structure schematic diagram of the axle in the utility model embodiment 1;
Fig. 2 is the rubber sealing structure schematic diagram of the axle in the utility model embodiment 2;
Fig. 3 is the structural representation that the axle in the utility model embodiment 3 is used the rubber seal dust ring;
Fig. 4 is the structural representation that the axle in the utility model embodiment 3 seals with the rubber seal pull bar;
Fig. 5 is this special structural representation sealed of rubber seal for axle in the utility model embodiment 3;
Fig. 6 is the structural representation that the axle in the utility model embodiment 3 seals with the rubber seal lattice;
Fig. 7 is the structural representation that the axle in the utility model embodiment 3 seals by the rubber seal piston in combination.
Embodiment
As shown in Figure 1, a kind of helical teeth that carries retaining ring of the present utility model is arranged the floating shaft rubber seal of interference design, axle adopts the helical teeth design with the rubber seal external diameter, direction after fluid-encapsulated helical teeth 1 utilizes the fluid hydrodynamic pressure to open and cavity be adjacent to sealing; Direction fluid-encapsulated helical teeth 2 dorsad can produce and firmly grabs wall power, prevents that axle from ejecting seal chamber with the pressure of the sealed fluid of rubber seal; Radial height is greater than a plurality of helical teeth 1 and 2 of 1 millimeter has increased several external diameter potted lines, has improved the static seal effect, and has had floating elastic.
Axle adopts cornice formula interference design with the rubber seal external diameter by sealant flow side 3, larger external diameter decrement is provided, and can not cause larger axle to shrink with the rubber seal internal diameter, can not have influence on the magnitude of interference of sealing lip and the control of radial force, guarantee that external diameter and equipment seal chamber internal diameter fit tightly sealing simultaneously, non-slip, and be easy to install.
Axle is provided with retaining ring 4 with the rubber seal inner side surface; outer side surface is provided with retaining ring 5; retaining ring 4 and 5 and axle with between rubber seal main seal ring 6, adopting floating connection; main seal ring 6 can radially fluctuate between retaining ring 4 and 5; to adapt to acutely beating or swinging of axle, retaining ring 4 and 5 pairs of main seal rings 6 have played good support protective action simultaneously.
Simultaneously, axle with the rubber seal internal diameter containing multiple directions towards fluid-encapsulated helical teeth 7, carry out the rotating multi motive sealing to fluid-encapsulated; Direction is fluid-encapsulated helical teeth 8 dorsad, to external world the pollutant such as water, dust carry out multi-sealed, helical teeth 7 and the helical teeth 8 arranged side by side, simultaneously can by axle by the rubber seal stable support on axle and produce floating effect.
As shown in Figure 2, axle adopts the helical teeth design with the rubber seal external diameter away from the sealant flow side, the multiple directions fluid-encapsulated helical teeth 2 dorsad that radial height is greater than 1 millimeter, can produce and firmly grab wall power, prevents that axle from ejecting seal chamber with the pressure of the sealed fluid of rubber seal.Axle adopts cornice formula interference design with the rubber seal external diameter by sealant flow side 3.
Axle is provided with retaining ring 5 with the rubber seal outer side surface; retaining ring 5 and axle are with between rubber seal main seal ring 6, adopting floating connection; main seal ring 6 retaining ring 5 relatively radially fluctuates; to adapt to acutely beating or swinging of axle, 5 pairs of main seal rings 6 of retaining ring have played good support protective action simultaneously.
Axle is provided with multiple directions towards fluid-encapsulated helical teeth 7 with rubber seal internal diameter sealed lip, to the motive sealing of fluid-encapsulated formation multiple tracks.
As shown in Figure 3, the axle rubber seal of the present embodiment is the dust ring in the hydropneumatic transmission device.Wherein, axle adopts the helical teeth design with rubber seal main seal ring 6 external diameters, is provided with radial height and is greater than the multiple directions of 1 millimeter towards fluid-encapsulated helical teeth 1, utilizes hydrodynamic pressure and cavity to be adjacent to sealing.The seal lip inner radius of rubber seal main seal ring 6 is provided with direction more than 3 fluid-encapsulated helical teeth 8 dorsad, can multiple frizing, and well isolate the various pollutants such as extraneous water, dust, the helical teeth 1 of outer radius and the helical teeth 8 of inner radius play floating action jointly, axle can be moved up and down with the rubber seal dust ring in the large swing of axostylus axostyle or side direction heavy duty in seal chamber, and avoid being extruded damage and stabilized seal.
As shown in Figure 4, the axle rubber seal of the present embodiment is the pull bar envelope in the hydropneumatic transmission device.Axle adopts rightabout helical teeth 1 and 2 arrangement design arranged side by side with rubber seal main seal ring 6 external diameters, and axle is provided with the helical teeth 8 more than 3 by rubber seal main seal ring 6 seal lip inner radius, forms multiple floating seal.
As shown in Figure 5, the axle rubber seal of the present embodiment is this special envelope in the hydropneumatic transmission device.Axle adopts with rubber seal static seal elastomer 9 square ring that rightabout helical teeth 1 and 2 arrangement design arranged side by side are arranged on external diameter, and axle is provided with the helical teeth 7 more than 3 by rubber seal main seal ring 6 seal lip inner radius, forms multiple floating seal.
As shown in Figure 6, the axle rubber seal of the present embodiment is the lattice Lay envelope in the hydropneumatic transmission device.Axle adopts with rubber seal static seal elastomer 9 square ring that rightabout helical teeth 7 and 8 arrangement design arranged side by side are arranged on internal diameter, and axle is provided with rightabout fillet helical teeth 1 and 2 by rubber seal main seal ring 6 outer radius and arranges side by side, forms multiple floating seal.
As shown in Figure 7, the axle rubber seal of the present embodiment is the piston in combination envelope in the hydropneumatic transmission device.Axle has designed 5 helical teeth 7 of arranging side by side and 5 rightabout helical teeth 8 of arrangement arranged side by side with rubber seal static seal elastomer 9 internal diameters, and axle is provided with rightabout helical teeth 1 and 2 by rubber seal main seal ring 6 outer radius and arranges side by side, forms multiple floating seal.
Claims (5)
1. the helical teeth that can carry retaining ring is arranged the axle rubber seal that interference designs, it is characterized in that, axle is provided with a plurality of helical teeth with the surface of contact of external diameter surface of contact, internal diameter surface of contact or external diameter and the internal diameter of rubber seal and is arranged in parallel, and axle adopts cornice formula interference design with the external diameter surface of contact of rubber seal.
2. a kind of helical teeth that carries retaining ring according to claim 1 is arranged the axle rubber seal of interference design, it is characterized in that, described axle carries retaining ring with rubber seal, retaining ring is arranged on axle to be had with inner side surface, outer side surface or this two sides of main seal ring in rubber seal, adopt floating connection between retaining ring and main seal ring, can radially move up and down.
3. a kind of helical teeth that carries retaining ring according to claim 1 and 2 is arranged the axle rubber seal of interference design, it is characterized in that, the quantity of described helical teeth is more than 3 or 3, and the angle of helical teeth and surface of contact all is less than 90 degree under free state and compressive state; The helical teeth radial height all is greater than 1 millimeter.
4. a kind of helical teeth that carries retaining ring according to claim 1 and 2 is arranged the axle rubber seal of interference design, it is characterized in that, described helical teeth is tiltedly arranged to fluid-encapsulated inclination, or fluid-encapsulated inclination is tiltedly arranged dorsad, or respectively to this both direction oblique arrangement.
5. a kind of helical teeth that carries retaining ring according to claim 1 and 2 is arranged the axle rubber seal of interference design, it is characterized in that, described axle rubber seal is integrated type or is split type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406845.1U CN203374810U (en) | 2013-07-09 | 2013-07-09 | Shaft rubber seal which is provided with fixing ring and designed in helical tooth arrangement interference mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406845.1U CN203374810U (en) | 2013-07-09 | 2013-07-09 | Shaft rubber seal which is provided with fixing ring and designed in helical tooth arrangement interference mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374810U true CN203374810U (en) | 2014-01-01 |
Family
ID=49837339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320406845.1U Withdrawn - After Issue CN203374810U (en) | 2013-07-09 | 2013-07-09 | Shaft rubber seal which is provided with fixing ring and designed in helical tooth arrangement interference mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322203A (en) * | 2013-07-09 | 2013-09-25 | 艾志（南京）环保管接技术股份有限公司 | Interference designed shaft rubber seal provided with fixing rings and helical teeth |
| CN106737152A (en) * | 2016-12-23 | 2017-05-31 | 泉州智信专利技术开发有限公司 | It is a kind of with dust-proof bistrique and sanding machine |
-
2013
- 2013-07-09 CN CN201320406845.1U patent/CN203374810U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322203A (en) * | 2013-07-09 | 2013-09-25 | 艾志（南京）环保管接技术股份有限公司 | Interference designed shaft rubber seal provided with fixing rings and helical teeth |
| WO2015003539A1 (en) * | 2013-07-09 | 2015-01-15 | 艾志工业技术集团有限公司 | Interference designed shaft rubber seal provided with fixing rings and arrangement of helical teeth |
| CN106737152A (en) * | 2016-12-23 | 2017-05-31 | 泉州智信专利技术开发有限公司 | It is a kind of with dust-proof bistrique and sanding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AIZHI INDUSTRIAL TECHNOLOGY GROUP CO., LTD. Free format text: FORMER OWNER: AIZHI (NANJING) ENVIRONMENTAL PROTECTION PIPE CONNECTION TECHNOLOGY CO., LTD. Effective date: 20140227 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140227 Address after: 210036, 309 Hanzhoung Avenue, Gulou District, Jiangsu, Nanjing Patentee after: AIZHI (NANJING) ENVIRONMENTAL PROTECTION PIPE CONNECTOR TECHNOLOGY CO., LTD. Address before: 210036, 309 Hanzhoung Avenue, Gulou District, Jiangsu, Nanjing Patentee before: Ai Zhi (Nanjing) environmental protection pipe connection technology Limited by Share Ltd |
|
| TR01 | Transfer of patent right | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160419 Address after: 210036, 309 Hanzhoung Avenue, Gulou District, Jiangsu, Nanjing Patentee after: Ai Zhi (Nanjing) environmental protection pipe connection technology Limited by Share Ltd Address before: 210036, 309 Hanzhoung Avenue, Gulou District, Jiangsu, Nanjing Patentee before: AIZHI (NANJING) ENVIRONMENTAL PROTECTION PIPE CONNECTOR TECHNOLOGY CO., LTD. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20160907 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |