CN206495998U - The high pressure preposition oil sealing of skeleton - Google Patents
The high pressure preposition oil sealing of skeleton Download PDFInfo
- Publication number
- CN206495998U CN206495998U CN201621452606.XU CN201621452606U CN206495998U CN 206495998 U CN206495998 U CN 206495998U CN 201621452606 U CN201621452606 U CN 201621452606U CN 206495998 U CN206495998 U CN 206495998U
- Authority
- CN
- China
- Prior art keywords
- seal
- skeleton
- line segment
- oil sealing
- high pressure
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of high pressure preposition oil sealing of skeleton, including skeleton and seal, the section of skeleton includes four line segments, the lower end of first line segment and the left end of second line segment connect and form included angle A, 100 ° of A=90, and second line segment is horizontal, the right-hand member of second line segment is connected with the lower end of the 3rd line segment and forms included angle B, B=A, the upper end of the 3rd line segment connects the left end of the 4th line segment, and the 4th line segment is horizontal；The upper surface of seal is fitted and mutually bonded completely with the lower surface of skeleton, and skeleton is preposition between the seal area and hydraulic oil of seal；Had a generally triangular shape on the outside of the outer peripheral face zero draft of seal, the upper surface of seal provided with chamfering, the lip body of the inner circumferential of seal, internal diameter of the internal diameter less than skeleton of lip body, the lower surface of lip body and seal is provided with oblique angle.The oil sealing can significantly improve oil sealing voltage endurance capability, temperature rise rate of the reduction oil sealing during high pressure use.
Description
Technical field
The utility model is related to oil enveloping structure, and in particular to a kind of high pressure preposition oil sealing of skeleton.
Background technology
Oil sealing is the critical component of plant equipment, and can its performance quality direct relation equipment safe and reliable operation.With
Scientific and technical continues to develop, and all kinds of plant equipment develop to high pressure direction, performance of the oil sealing under high pressure operating mode, it has also become dress
Prepare the key point for making field development.Oil sealing directly bears very high pressure medium, positive normal pressure as used in hydraulic motor
Power requirement is in 10-20Mpa, and maximum pressure is likely to be breached 30Mpa, generally, with the increase of sealed medium pressure, oil seal lip with
Contact stress and contact width of the rotary shaft in contact zone can be continuously increased so that contact zone temperature is raised, and radiating is difficult, aggravation
Ageing of rubber, ultimately results in seal failure.The risk that oil sealing also has and occurs extrusion, turns over the destructions such as lip under high pressure simultaneously.
Therefore, oil sealing voltage endurance capability is improved, it is to avoid the destruction under oil sealing high pressure, meeting the high pressure operating mode improved constantly will
Ask, be those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
In order to solve above-mentioned technical problem, the utility model provides a kind of high pressure preposition oil sealing of skeleton, the oil sealing
Oil sealing voltage endurance capability, temperature rise rate of the reduction oil sealing during high pressure use can be significantly improved.
The scheme that the utility model solves above-mentioned technical problem is as follows：
The high pressure preposition oil sealing of skeleton, including skeleton and seal；
The section of the skeleton includes four line segments, and the lower end of the first line segment and the left end of second line segment connect and form folder
Angle A, A=90-100 °, second line segment is horizontal, and the right-hand member of second line segment is connected with the lower end of the 3rd line segment and forms angle
B, B=A, the upper end of the 3rd line segment connect the left end of the 4th line segment, and the 4th line segment is horizontal；
The upper surface of the seal is fitted and mutually bonded completely with the lower surface of skeleton, and skeleton is preposition in seal
Seal area and hydraulic oil between；
Chamfering, the lip of the inner circumferential of seal are provided with the outside of the outer peripheral face zero draft of the seal, the upper surface of seal
Body has a generally triangular shape, the internal diameter of lip body is less than the internal diameter of skeleton, and the lower surface of lip body and seal is provided with oblique angle.
The lower surface of the seal be provided with support ring, the external diameter of the external diameter ＞ support rings of the external diameter ＞ skeletons of seal,
The internal diameter of the internal diameter ＞ lip bodies of the internal diameter ＞ support rings of skeleton.Support ring belongs to optional accessory, can be according to actual installation position
Trench gap and pressure medium size decide whether be equipped with.
The seal is simply contacted with support ring, or seal is mutually bonded with support ring.
The skeleton is metal material, and seal is elastomeric material, and support ring is metal material.
Operation principle of the present utility model is：By by the bonding of skeleton and seal so that skeleton is linked to be with seal
One, support is provided for seal；By the way that skeleton is preposition between seal seal area and hydraulic oil so that skeleton is to sealing
Body lip has certain drag interaction, can effectively reduce contact width when oil sealing is pressurized, radial load and be gathered way with pressure,
Reduce temperature rise rate；And by the support ring, can effectively control the gap length of oil sealing installing groove, prevent oil sealing in height
Pressure is extruded, so as to strengthen the voltage endurance capability of oil sealing.
The utility model has the following advantages relative to prior art：
1st, this high pressure preposition oil sealing of skeleton, skeleton is preposition between seal seal area and hydraulic oil, and seal is risen
Supporting role, and have certain drag interaction to seal lip when oil sealing bears pressure medium；Seal seals；Lip
Body is pointed shape, so as to form linear contact lay with rotating shaft, improves sealing effectiveness；High-pressure oil sealing of the present utility model is when bearing pressure
The contact width in area in sealing contact, radial load gather way it is smaller so that oil sealing caloric value is relatively low with the speedup of pressure, prolongs
Delay the generation of high temperature ageing, substantially increase oil sealing voltage endurance capability and service life.
2nd, seal and support ring are leaving oblique angle gap at axle so that seal has one when oil sealing bears high pressure
Fixed deformation space, so as to strengthen the anti-plasticating capacity of oil sealing.
3rd, there is provided this optional spare part of support ring, for the installing groove that gap is larger, can install support ring additional, support
Ring can control the gap length of oil sealing installing groove and support seal, prevent from getting into trench gap during seal high pressure.
4th, skeleton is metal material, can resist sealed medium pressure, preposition on front side of seal seal area.Seal is rubber
Glue material, elasticity is good.Support ring is metal material, and it is to control the gap length of oil sealing installing groove and support sealing that it, which is acted on,
Body, prevents from getting into trench gap during seal high pressure.
Brief description of the drawings
Fig. 1 is the sectional view of the preposition oil sealing of high pressure skeleton of the present utility model.
Fig. 2 is Fig. 1 stereochemical structure sectional view.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
The preposition oil sealing of skeleton of high pressure as depicted in figs. 1 and 2, including skeleton 1 and seal 2.
The section of skeleton 1 includes four line segments, and the lower end of the first line segment 11 is connected and formed with the left end of second line segment 12
Included angle A, A=95 °, second line segment 12 is horizontal, and the right-hand member of second line segment 12 is connected and formed with the lower end of the 3rd line segment 13
Included angle B, B=A, the upper end of the 3rd line segment 13 connects the left end of the 4th line segment 14, and the 4th line segment 14 is horizontal；
The upper surface of seal 2 is fitted and mutually bonded completely with the lower surface of skeleton 1, and skeleton 1 is preposition in seal 2
Seal area and hydraulic oil between；
Chamfering, the lip of the inner circumferential of seal 2 are provided with the outside of the zero draft of outer peripheral face 21 of seal 2, the upper surface of seal 2
Body 22 has a generally triangular shape that the internal diameter of lip body 22 is less than the internal diameter of skeleton 1, and the lower surface of lip body 22 and seal 2 is provided with oblique angle 23.
The lower surface of seal 2 be provided with support ring 3, the external diameter of the external diameter ＞ support rings 3 of the external diameter ＞ skeletons 1 of seal 2,
The internal diameter of the internal diameter ＞ lips body 22 of the internal diameter ＞ support rings 3 of skeleton 1.
Seal 2 is simply contacted with support ring 3, or seal 2 is mutually bonded with support ring 3.
Skeleton 1 is metal material, and seal 2 is elastomeric material, and support ring 3 is metal material.
Above-mentioned is the utility model preferably embodiment, but embodiment of the present utility model is not by the above
Limitation, it is other it is any without departing from Spirit Essence of the present utility model and the change made under principle, modification, replacement, combine, it is simple
Change, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (4)
1. the high pressure preposition oil sealing of skeleton, it is characterised in that：Including skeleton and seal,
The section of the skeleton includes four line segments, and the lower end of the first line segment and the left end of second line segment connect and form included angle A,
A=90-100 °, second line segment is horizontal, and the right-hand member of second line segment is connected with the lower end of the 3rd line segment and forms included angle B, B=
A, the upper end of the 3rd line segment connects the left end of the 4th line segment, and the 4th line segment is horizontal；
The upper surface of the seal is fitted and mutually bonded completely with the lower surface of skeleton, and skeleton is preposition in the close of seal
Seal between area and hydraulic oil；
Chamfering is provided with the outside of the outer peripheral face zero draft of the seal, the upper surface of seal, the lip body of the inner circumferential of seal is in
The lower surface of existing triangle, internal diameter of the internal diameter less than skeleton of lip body, lip body and seal is provided with oblique angle.
2. the high pressure according to claim 1 preposition oil sealing of skeleton, it is characterised in that：The lower surface of the seal is provided with
Support ring, the external diameter of the external diameter ＞ support rings of the external diameter ＞ skeletons of seal, the internal diameter ＞ lip bodies of the internal diameter ＞ support rings of skeleton
Internal diameter.
3. the high pressure according to claim 1 preposition oil sealing of skeleton, it is characterised in that：The seal and support ring are simple
Contact, or seal are mutually bonded with support ring.
4. the high pressure according to claim 2 preposition oil sealing of skeleton, it is characterised in that：The skeleton is metal material, close
Feng Tiwei elastomeric materials, support ring is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621452606.XU CN206495998U (en) | 2016-12-27 | 2016-12-27 | The high pressure preposition oil sealing of skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621452606.XU CN206495998U (en) | 2016-12-27 | 2016-12-27 | The high pressure preposition oil sealing of skeleton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495998U true CN206495998U (en) | 2017-09-15 |
Family
ID=59801784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621452606.XU Withdrawn - After Issue CN206495998U (en) | 2016-12-27 | 2016-12-27 | The high pressure preposition oil sealing of skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704595A (en) * | 2016-12-27 | 2017-05-24 | 广州机械科学研究院有限公司 | Framework-preposed oil seal used under high pressure |
-
2016
- 2016-12-27 CN CN201621452606.XU patent/CN206495998U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704595A (en) * | 2016-12-27 | 2017-05-24 | 广州机械科学研究院有限公司 | Framework-preposed oil seal used under high pressure |
| CN106704595B (en) * | 2016-12-27 | 2019-11-01 | 广州机械科学研究院有限公司 | The preposition oil sealing of high pressure skeleton |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170915 Effective date of abandoning: 20191101 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170915 Effective date of abandoning: 20191101 |