CN204082957U - One adds U-shaped seal ring hydrocoupling - Google Patents
One adds U-shaped seal ring hydrocoupling Download PDFInfo
- Publication number
- CN204082957U CN204082957U CN201420509305.0U CN201420509305U CN204082957U CN 204082957 U CN204082957 U CN 204082957U CN 201420509305 U CN201420509305 U CN 201420509305U CN 204082957 U CN204082957 U CN 204082957U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- shaped seal
- inner sleeve
- overcoat
- shaped
- 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.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model provides one and adds U-shaped seal ring hydrocoupling; when being under pressure, the lip of its U-shaped seal ring coordinates tightr with sealing surface, U-shaped seal ring can not be produced and move axially; guarantee that the screw thread of piston and inner sleeve is not interfered, guarantee the normal work of coupling.It comprises inner sleeve, overcoat, the inner peripheral surface of described overcoat and the outer peripheral surface of inner sleeve are set with certain tapering corresponding matching, driving shaft, driven axle is inserted therein in hole from the two ends of inner sleeve respectively, the inner peripheral surface of one end that the diameter of bore of described overcoat is less is provided with step piston chamber, the outer end in step piston chamber is furnished with piston, described piston thread is set in the connecting thread of described inner sleeve, it is characterized in that: the U-shaped ring set of annular is in described inner sleeve, described U-shaped seal ring is positioned at described step piston chamber, described U-shaped seal ring is specially the seal ring of the U-shaped structure of section, the cross-section structure of described U-shaped seal ring comprises plane structure, the lip of both sides.
Description
Technical field
The utility model relates to the technical field of structures of coupling, is specially one and adds U-shaped seal ring hydrocoupling.
Background technique
Coupling is the parts connecting diaxon or coupling shaft and revolving meber, together turns round do not throw off in transmission motion and dynamic process natural axis.In coupling, have a kind of hydrocoupling, it comprises the overcoat of coaxial sleeve heavy wall together and the inner sleeve of thin-walled, and wherein, the inner peripheral surface of overcoat and the outer circumferential face of inner sleeve are with certain tapering corresponding matching.When mounted, the radial high pressure oil that injects makes its conical surface chien shih inner sleeve be pressed on axle to this kind of hydrocoupling, and overcoat is expanded; Axial oil injects piston cavity makes overcoat engage the conical surface to the large Slideslip of inner sleeve diameter along inner sleeve, inner sleeve is forced to be shunk, overcoat is expanded, when the moving displacement of overcoat reaches design flow, unscrew bolt and bleed off high pressure oil, now, there is positive pressure between inner sleeve and overcoat interference fit face, the frictional force that during work, positive pressure produces whereby carrys out transmitting torque.When applying axial oil pressure, in order to prevent piston cavity leakage of oil, a rubber seal can be added inside piston, but because rubber seal material is softer, can by rubber seal compressive strain in course of exerting pressure, clamp-on in the screw thread that piston and inner sleeve match, thus after causing when repairing, piston and inner sleeve thread biting locking non-dismountable, thus cause coupling to scrap.
Summary of the invention
For the problems referred to above; the utility model provides one and adds U-shaped seal ring hydrocoupling; when being under pressure; the lip of its U-shaped seal ring coordinates tightr with sealing surface; U-shaped seal ring can not be produced move axially; guarantee that the screw thread of piston and inner sleeve is not interfered, guarantee the normal work of coupling.
One adds U-shaped seal ring hydrocoupling, its technological scheme is such: it comprises inner sleeve, overcoat, the inner peripheral surface of described overcoat and the outer peripheral surface of inner sleeve are set with certain tapering corresponding matching, driving shaft, driven axle is inserted therein in hole from the two ends of inner sleeve respectively, the inner peripheral surface of one end that the diameter of bore of described overcoat is less is provided with step piston chamber, the outer end in step piston chamber is furnished with piston, described piston thread is set in the connecting thread of described inner sleeve, it is characterized in that: the U-shaped ring set of annular is in described inner sleeve, described U-shaped seal ring is positioned at described step piston chamber, described U-shaped seal ring is specially the seal ring of the U-shaped structure of section, the cross-section structure of described U-shaped seal ring comprises plane structure, the lip of both sides, the inwall of described lip is certainly outside to inside to the inclined-plane closed up in the center of plane structure, the plane structure of described U-shaped seal ring is close to the inner ring surface of described piston, the side cavity connects being positioned at U-shaped seal ring in described step piston chamber has hydraulic fluid port.
It is further characterized in that: the end face outside of described piston is pressed with pressure ring, and described pressure ring is by the outer toroid end face of screw fastening in described overcoat;
The middle-end of the inner peripheral surface of described overcoat is provided with thread-shaped oil groove, the sidewall of described overcoat is provided with and runs through filler opening, and described filler opening is communicated to described thread-shaped oil groove;
One end away from described piston of described overcoat is provided with adpting flange, and the central shaft of described adpting flange and the central shaft of described overcoat overlap.
After adopting structure of the present utility model, seal ring adopts U-shaped rubber seal, in the lip that its U-shaped seal ring relies on it to open, outer ring surface is affixed on inner sleeve, overcoat, during without interior pressure, only produce very little contact because of the distortion of the procheilon of lip, when sealing, the every bit contacted with sealing medium all there is the normal pressure equal with pressure medium, so the plane structure of U-shaped seal ring will be subject to axial compression, lip is subject to circumference compression, contact with sealing surface and broaden, contact stress increases simultaneously, when interior pressure raises again, distribution form and the size of contact change further, lip coordinates tightr with sealing surface, so better tightness, " self-tightening " of Here it is U-shaped seal ring, which overcoming conventional planar seal ring due to inner sleeve thread pitch makes piston outward-dipping under pressure, plane seal ring edge section easily enters thread pitch, the problem that when causing dismounting, piston and inner sleeve thread biting locking even cause piston to be scrapped, to sum up, add U-shaped seal ring hydrocoupling when being under pressure, the lip of its U-shaped seal ring coordinates tightr with sealing surface, U-shaped seal ring can not be produced move axially, guarantee that the screw thread of piston and inner sleeve is not interfered, guarantee the normal work of coupling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model hydraulic brake embodiment one;
Fig. 2 is the I place partial enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the utility model hydraulic brake embodiment two.
Embodiment
One adds U-shaped seal ring hydrocoupling, specific embodiment one, see Fig. 1, Fig. 2: it comprises inner sleeve 2, overcoat 3, the inner peripheral surface of overcoat 3 and the outer peripheral surface of inner sleeve 2 are set with certain tapering corresponding matching, driving shaft 10, driven axle 1 is inserted therein in hole from the two ends of inner sleeve 2 respectively, the inner peripheral surface of one end that the diameter of bore of overcoat 3 is less is provided with step piston chamber 6, the outer end in step piston chamber 6 is furnished with piston 7, piston 7 thread set is in the connecting thread 13 of inner sleeve 2, the U-shaped seal ring 11 of annular is set in inner sleeve 2, U-shaped seal ring 11 is positioned at step piston chamber 6, U-shaped seal ring 11 is specially the seal ring of the U-shaped structure of section, the cross-section structure of U-shaped seal ring 11 comprises plane structure 14, the lip 15 of both sides, the inwall of lip 15 is certainly outside to inside to the inclined-plane 17 closed up in the center of plane structure 14, the plane structure 14 of U-shaped seal ring 11 is close to the inner ring surface of piston 7, the side cavity connects being positioned at U-shaped seal ring 11 in step piston chamber 6 has hydraulic fluid port 5.The end face outside of piston 7 is pressed with pressure ring 8, and pressure ring 8 is anchored on the outer toroid end face of overcoat 3 by screw 9; The middle-end of the inner peripheral surface of overcoat 3 is provided with thread-shaped oil groove 16, and the sidewall of overcoat 3 is provided with and runs through filler opening 4, filler opening 4 is communicated to thread-shaped oil groove 16;
Specific embodiment two: one end away from piston 7 of overcoat 3 is provided with adpting flange 12, the central shaft of adpting flange 12 and the central shaft of overcoat 3 overlap.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. one kind adds U-shaped seal ring hydrocoupling, it comprises inner sleeve, overcoat, the inner peripheral surface of described overcoat and the outer peripheral surface of inner sleeve are set with certain tapering corresponding matching, driving shaft, driven axle is inserted therein in hole from the two ends of inner sleeve respectively, the inner peripheral surface of one end that the diameter of bore of described overcoat is less is provided with step piston chamber, the outer end in step piston chamber is furnished with piston, described piston thread is set in the connecting thread of described inner sleeve, it is characterized in that: the U-shaped ring set of annular is in described inner sleeve, described U-shaped seal ring is positioned at described step piston chamber, described U-shaped seal ring is specially the seal ring of the U-shaped structure of section, the cross-section structure of described U-shaped seal ring comprises plane structure, the lip of both sides, the inwall of described lip is certainly outside to inside to the inclined-plane closed up in the center of plane structure, the plane structure of described U-shaped seal ring is close to the inner ring surface of described piston, the side cavity connects being positioned at U-shaped seal ring in described step piston chamber has hydraulic fluid port.
2. one according to claim 1 adds U-shaped seal ring hydrocoupling, it is characterized in that: the end face outside of described piston is pressed with pressure ring, and described pressure ring is by the outer toroid end face of screw fastening in described overcoat.
3. one according to claim 1 adds U-shaped seal ring hydrocoupling, it is characterized in that: the middle-end of the inner peripheral surface of described overcoat is provided with thread-shaped oil groove, the sidewall of described overcoat is provided with and runs through filler opening, described filler opening is communicated to described thread-shaped oil groove.
4. the one according to claim arbitrary in claims 1 to 3 adds U-shaped seal ring hydrocoupling, it is characterized in that: one end away from described piston of described overcoat is provided with adpting flange, the central shaft of described adpting flange and the central shaft of described overcoat overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509305.0U CN204082957U (en) | 2014-09-05 | 2014-09-05 | One adds U-shaped seal ring hydrocoupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509305.0U CN204082957U (en) | 2014-09-05 | 2014-09-05 | One adds U-shaped seal ring hydrocoupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082957U true CN204082957U (en) | 2015-01-07 |
Family
ID=52175680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420509305.0U Expired - Lifetime CN204082957U (en) | 2014-09-05 | 2014-09-05 | One adds U-shaped seal ring hydrocoupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669379A (en) * | 2021-08-18 | 2021-11-19 | 无锡鸿海龙船机有限公司 | Disc brake type hydraulic coupling |
-
2014
- 2014-09-05 CN CN201420509305.0U patent/CN204082957U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669379A (en) * | 2021-08-18 | 2021-11-19 | 无锡鸿海龙船机有限公司 | Disc brake type hydraulic coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |