CN208565557U - Oil sealing is depressurized in microcirculation - Google Patents
Oil sealing is depressurized in microcirculation Download PDFInfo
- Publication number
- CN208565557U CN208565557U CN201821106201.XU CN201821106201U CN208565557U CN 208565557 U CN208565557 U CN 208565557U CN 201821106201 U CN201821106201 U CN 201821106201U CN 208565557 U CN208565557 U CN 208565557U
- Authority
- CN
- China
- Prior art keywords
- oil
- lip
- revolving body
- sealing
- moving
- 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
Abstract
The utility model relates to microcirculation decompression oil sealings to solve the larger-size technical problem of combination oil seal in the prior art.When in use, moving-coil can stop most of lubricating oil to enter oil seal lip position to the microcirculation decompression oil sealing of the utility model first.Moving-coil can be rotated together with transmission parts simultaneously, and the oil liquid of bigger diameter end right side can be faced out along right side under the action of the centrifugal force to be thrown away, the oil liquid that oil liquid can be thrown away along right side at interior revolving structure left side under intermolecular attraction effect together band into A chamber.As oil liquid is persistently carried over into chamber A at interior revolving body, oil pressure can gradually become smaller and form negative pressure in chamber B, and the oil liquid on the right side of lip can be flowed to chamber B without reaching good sealing effect by the right leakage of lip under pressure.So lubricating oil will receive barrier and the double action of centrifugal force and cannot be revealed to the right by lip, reach double sealing effect when moving-coil rotates.
Description
Technical field
The utility model relates to a kind of microcirculations to depressurize oil sealing.
Background technique
Oil sealing is the mechanical organ for oil sealing, and the component for needing to flow oil in transmission parts is isolated with power output component for it,
Lubricating oil is set to be unlikely to leak.Oil sealing is typically mounted in end cap and by lip position detached flow oil component and force outlet part
Part, oil sealing further include the contraction spring for being sleeved on lip periphery, and lip is pressed in transmission parts under contraction spring active force
Above realize oil sealing effect.With the rotation of transmission parts, the lip position of oil sealing easily wears and causes oil seepage.
Modular oil sealing and box-type oil seal are Combined grease seal, Combined grease seal both included be fixed on it is quiet in end cap
Circle further includes being fixed on the moving-coil rotated on transmission parts with transmission parts, multiple-sealed knot is provided between moving-coil and quiet circle
Structure leaks to prevent lubricating oil from the contact position of moving-coil and Jing Quan.But modular oil sealing and box-type oil seal are to guarantee that moving-coil connects with Jing Quan
The sealing performance of synapsis needs to be arranged therebetween at the sealing cooperation of many places, this results in oil enveloping structure longer dimension, price
It is expensive.
Utility model content
The purpose of this utility model is to provide a kind of microcirculation decompression oil sealings to solve combination oil seal in the prior art
The technical issues of longer dimension.
To achieve the above object, the microcirculation decompression oil sealing of the utility model uses following technical scheme:
Oil sealing, including moving-coil and Jing Quan are depressurized in microcirculation, and moving-coil is set on the left of quiet circle, and moving-coil includes being sealingly mounted at biography
Major diameter section on dynamic component；Jing Quan includes the interior revolving body and external gyrorotor of concentrically line, the right side of interior revolving body and external gyrorotor
Side is connected by bottom plate, and the height of interior revolving body is less than the height of external gyrorotor, and major diameter Duan Yujing circle defines chamber A；Interior time
The left end of swivel is provided with the lip extended inwardly, is additionally provided on interior revolving body for compressing lip to realize lip and pass
The contraction spring of dynamic component outer peripheral surface sealing cooperation, the left end of lip are provided with miner diameter end towards the right conical surface, the conical surface and major diameter section
Between define chamber B, having between the right side of major diameter section and the left side of interior revolving body can connecting chamber A and chamber B
Gap, the oil liquid being thrown out of in moving-coil rotation along major diameter section right side can generate intermolecular with oil liquid at interior revolving body left side
Gravitation and oil liquid at interior revolving body left side is brought to chamber A.
Moving-coil further include with transmission parts outer peripheral surface sealing cooperation path section, path section be located at the left side of major diameter section and with
Major diameter section concentrically line.
Moving-coil further include with transmission parts outer peripheral surface sealing cooperation path section, path section be located at the right side of major diameter section and with
Concentrically line, lip seal cooperation by the outer peripheral surface of path section and transmission parts to major diameter section.
The right end of lip is provided with miner diameter end towards the left conical surface.
It is machined with the conical surface at the right end outer rim of major diameter section, the miner diameter end of the conical surface is towards right setting.
Annular groove is provided on the outer peripheral surface of interior revolving body, the contraction spring is inlaid in annular groove, and annular groove and lip position
At the same shaft part of interior revolving body.
The right end of interior revolving body is provided with the sealing extended inwardly, the internal diameter of sealing and the internal diameter of lip it is identical and with
The outer peripheral surface of transmission parts seals cooperation.
The left end of sealing is machined with miner diameter end towards the right conical surface.
The beneficial effects of the utility model are as follows: the microcirculation of the utility model depressurizes oil sealing when in use, moving-coil major diameter
Duan Shouxian can stop most of lubricating oil to enter oil seal lip position.Moving-coil can be rotated together with transmission parts simultaneously, major diameter
The oil liquid of end right side can be faced out along right side under the action of the centrifugal force to be thrown away, and interior revolving structure is left under intermolecular attraction effect
Endface oil liquid can by along the oil liquid that right side is thrown away together band into A chamber.With at interior revolving body, oil liquid is persistently carried over into
Oil pressure can gradually become smaller and form negative pressure in chamber A, chamber B, and the oil liquid on the right side of lip can flow under pressure to chamber B
Without reaching good sealing effect by the right leakage of lip.So lubricating oil will receive barrier and centrifugal force when moving-coil rotates
Double action and cannot be revealed to the right by lip, reached double sealing effect.The utility model do not need moving-coil with
Many places sealing structure is set between quiet circle, and the lesser oil sealing of size can meet seal request, moreover it is possible to increase the oil sealing service life.
Further, lip is sealed by the outer peripheral surface of path section and transmission parts and is cooperated, as long as guaranteeing path section periphery
The surface roughness in face, so that it may transmission parts surface roughness effectively be avoided not enough to accelerate lip abrasion, failure is caused to be leaked
The drawback of oil, it is ensured that sealing effect is more suitable for the situation of transmission parts surface roughness difference, and can play common oil sealing cannot achieve
Sealing performance.Simultaneously in the rotation process of transmission parts, Jing Quan only can with moving-coil phase mutual friction, without with transmission parts
Phase mutual friction avoids after transmission parts are used for a long time the occurrence of being worn, thus using the utility model oil sealing when
No replacement is required transmission parts (generally axial workpiece), the waste of material of reduction replacement transmission parts and time cost waste.
Detailed description of the invention
Fig. 1 is that the structural schematic diagram of the installation of embodiment one of oil sealing on the rotary shaft is depressurized in the microcirculation of the utility model；
Fig. 2 is that the structural schematic diagram of the installation of embodiment two of oil sealing on the rotary shaft is depressurized in the microcirculation of the utility model.
Specific embodiment
The embodiment one of the microcirculation decompression oil sealing of the utility model:
Microcirculation decompression oil sealing is for being mounted on rotary shaft 1(i.e. transmission parts), to prevent oil seepage.Microcirculation subtracts
Oil sealing peace is depressurized in the quiet circle 6 that pressure oil package includes the moving-coil 2 being mounted in rotary shaft 1 and is fixed in cabinet or end cap, microcirculation
Structure after in rotary shaft 1 is as shown in Figure 1 (since overall structure is revolving structure after assembling, only with regard to a half hitch in Fig. 2
Structure has carried out section view expression).
Moving-coil 2 includes the path section 21 of left end and the major diameter section 22 of right end, is machined with cone at the right end outer rim of major diameter section 22
Face 23, the miner diameter end of the conical surface 23 is towards right setting.The left side of major diameter section 22 is its lateral surface 4, and the right side of major diameter section 22 is it
Medial surface 5, medial surface 5 is towards end cap side.
Quiet circle 6 includes the interior revolving body 61 and external gyrorotor 62 of concentrically line, the right side of interior revolving body 61 and external gyrorotor 62
Side is connected by bottom plate 63.The left end of interior revolving body 61, which is provided with, to be extended (extend towards interior revolving body centerline direction) inwardly
Lip 8, the right end of interior revolving body 61 is provided with the sealing 9 extended inwardly.The setting of lip 8 and sealing 9 is so that interior time
Cavity C is defined between swivel 61 and rotary shaft 1.It is provided with annular groove on the outer peripheral surface of interior revolving body 61, is embedded with and receives in annular groove
Contracting spring 7, annular groove and lip 8 are located on the same shaft part of interior revolving body 61.
The height of interior revolving body 61 is less than the height of external gyrorotor 62, so in the microcirculation decompression oil sealing after being installed
There is gap 3, the outer peripheral surface and external gyrorotor of major diameter section 22 between the medial surface 5 of major diameter section 22 and the left side of interior revolving body 61
62 inner wall seals cooperation, and major diameter section 22 and quiet circle 6 define chamber A.The left side of lip 8 is cone of the miner diameter end towards the right side
Face defines chamber B between the conical surface and major diameter section 22.Chamber A is connected to chamber B by gap 3.According to the lubricating oil viscosity used
Degree is different, and the size in gap 3 is variable value.When work, moving-coil 2 can be rotated synchronously with rotary shaft 1, under the influence of centrifugal force,
Oil liquid can be thrown away outward along medial surface 5 at 22 medial surface of major diameter section.When selected 3 occurrence of gap, as long as guaranteeing along 5 quilt of medial surface
The lubricating oil thrown away can generate intermolecular force, by the oil of interior 61 left end of revolving body with the oil liquid of interior 61 left side of revolving body
Liquid together band to A chamber.Since common lubricating oil viscosity value is in a determination section, gap corresponding with the section
3 general controls are in 0.05mm ~ 0.5mm.As oil liquid is thrown out of chamber A at interior 61 left side of revolving body, oil pressure meeting in chamber B
Gradually become smaller and form negative pressure, the oil liquid between sealing 9 and lip 8 under pressure can to chamber A flow without by
It is leaked to the right at lip 8 and sealing 9.In other embodiments, between the outer peripheral surface of major diameter section and the inner wall of external gyrorotor
There can also be certain interval, to facilitate oil liquid in chamber A to flow on the left of moving-coil.
In the present embodiment, the left end that the right end of lip 8 is machined with miner diameter end towards the left conical surface, sealing 9 is machined with path
It holds towards the right conical surface, so the internal diameter of lip 8 and sealing 9 is respectively less than outer diameter, further reduces quiet circle 6 and rotary shaft 1
Contact area, be conducive to reduce frictional force between quiet circle 6 and rotary shaft 1.In other embodiments, the sealing left end conical surface with
Any one in the lip right end conical surface can be saved；The internal diameter of lip and sealing can also be equal to or be greater than outer diameter.
In the present embodiment, the setting of sealing 9 is intended merely to further increase oil sealing effect.In other embodiments, close
Envelope portion can save the formation without influencing whether negative pressure in chamber B.
In the present embodiment, moving-coil 2 and quiet circle 6 include skeleton and elastic material, and the elastic material in moving-coil 2 is arranged in bone
On the inner peripheral surface of frame.6 elastomeric material wrapping frame surroundings of quiet circle, but skeleton is not provided in interior revolving body 61.Other embodiments
In, moving-coil can also only be made of elastic material with Jing Quan, or change the combining form of skeleton and elastic material.
The embodiment two of the microcirculation decompression oil sealing of the utility model:
Structure after microcirculation decompression oil sealing is mounted in rotary shaft 1 is as shown in Figure 2 (since overall structure is after assembling
Revolving structure has only carried out section view expression with regard to a half structure in Fig. 2), the difference with embodiment one is only that: the path of moving-coil 2
Section 21 is located at the right side of major diameter section 22.In this case, lip 8 is retracted spring 7 and is pressed on the outer peripheral surface of path section 21
And seal and cooperate with path section 21, while the inner peripheral surface of path section 21 and the outer peripheral surface of rotary shaft 1 seal and cooperate, so can say is
Lip 8 and sealing 9 are sealed by the outer peripheral surface of path section 21 and rotary shaft 1 to be cooperated.
In this case, as long as guaranteeing the surface roughness of 21 outer peripheral surface of path section, so that it may effectively avoid 1 table of rotary shaft
Surface roughness not enough accelerates the abrasion of lip 8, leads to the drawbacks of failure oil leak, it is ensured that sealing effect is more suitable for 1 surface of rotary shaft
The situation of roughness difference can play the sealing performance that common oil sealing cannot achieve.It is quiet simultaneously in the rotation process of transmission parts
Enclose 6 meetings and 2 phase mutual friction of moving-coil, without with 1 phase mutual friction of rotary shaft, avoid rotary shaft 1 be used for a long time after be worn
The occurrence of, rotary shaft that no replacement is required reduces waste of material and the time cost waste of replacement rotary shaft.
Claims (8)
1. oil sealing, including moving-coil and Jing Quan are depressurized in microcirculation, moving-coil is set on the left of quiet circle, it is characterised in that: moving-coil includes close
Seal the major diameter section being mounted on transmission parts；Jing Quan includes the interior revolving body and external gyrorotor of concentrically line, interior revolving body and outer
The right side of revolving body is connected by bottom plate, and the height of interior revolving body is less than the height of external gyrorotor, and major diameter Duan Yujing circle defines
Chamber A；The left end of interior revolving body is provided with the lip extended inwardly, is additionally provided on interior revolving body for compressing lip with reality
The contraction spring of existing lip and the sealing cooperation of transmission parts outer peripheral surface, the left end of lip are provided with miner diameter end towards the right conical surface, cone
Chamber B is defined between face and major diameter section, having between the right side of major diameter section and the left side of interior revolving body can connecting chamber A
With the gap of chamber B, the oil liquid being thrown out of in moving-coil rotation along major diameter section right side can be with oil liquid at interior revolving body left side
It generates intermolecular attraction and oil liquid at interior revolving body left side is brought to chamber A.
2. oil sealing is depressurized in microcirculation according to claim 1, it is characterised in that: moving-coil further includes and transmission parts outer peripheral surface
Seal the path section of cooperation, path section be located at the left side of major diameter section and with major diameter section concentrically line.
3. oil sealing is depressurized in microcirculation according to claim 1, it is characterised in that: moving-coil further includes and transmission parts outer peripheral surface
The path section of cooperation is sealed, path section is located at the right side of major diameter section and concentrically line, lip pass through path section and biography with major diameter section
The outer peripheral surface of dynamic component seals cooperation.
4. oil sealing is depressurized in microcirculation according to claim 2 or 3, it is characterised in that: the right end of lip is provided with miner diameter end
Towards the left conical surface.
5. oil sealing is depressurized in microcirculation according to claim 2 or 3, it is characterised in that: processed at the right end outer rim of major diameter section
There is a conical surface, the miner diameter end of the conical surface is towards right setting.
6. oil sealing is depressurized in microcirculation according to claim 2 or 3, it is characterised in that: be arranged on the outer peripheral surface of interior revolving body
There is annular groove, the contraction spring is inlaid in annular groove, and annular groove and lip are located at the same shaft part of interior revolving body.
7. oil sealing is depressurized in microcirculation according to claim 1, it is characterised in that: the right end of interior revolving body is provided with to be prolonged inwardly
The sealing stretched, the internal diameter of sealing and the outer peripheral surface identical and with transmission parts of the internal diameter of lip, which seal, to be cooperated.
8. oil sealing is depressurized in microcirculation according to claim 7, it is characterised in that: the left end of sealing is machined with miner diameter end court
The right conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106201.XU CN208565557U (en) | 2018-07-13 | 2018-07-13 | Oil sealing is depressurized in microcirculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106201.XU CN208565557U (en) | 2018-07-13 | 2018-07-13 | Oil sealing is depressurized in microcirculation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565557U true CN208565557U (en) | 2019-03-01 |
Family
ID=65492126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821106201.XU Active CN208565557U (en) | 2018-07-13 | 2018-07-13 | Oil sealing is depressurized in microcirculation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565557U (en) |
-
2018
- 2018-07-13 CN CN201821106201.XU patent/CN208565557U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202158190U (en) | Gland type filling dynamic sealing device | |
| CN201306517Y (en) | Valve rod sealing device | |
| US2393260A (en) | Shaft seal | |
| CN208565557U (en) | Oil sealing is depressurized in microcirculation | |
| CN205047799U (en) | Reducer output axle leak protection sealing device | |
| CN209557227U (en) | A kind of sealing structure of plunger pump | |
| CN109882593B (en) | Pressure-adjustable double-sided compression sealing device | |
| CN110185801A (en) | Special-shaped mesolow sealing ring | |
| CN103629357A (en) | Sealing mechanism for vane type rotary valve | |
| CN208565566U (en) | The decompression oil sealing of self-regulated pressing force of the spring | |
| CN103712015B (en) | 4 thrust angular contact formula swivel joints | |
| CN105402416A (en) | Sealing ring for rotating shaft | |
| CN206246676U (en) | A kind of rotation axis seal structure | |
| CN108644403A (en) | A kind of double sealing structure of plug valve | |
| CN204692119U (en) | Screw vacuum pump composite shaft seal structure | |
| CN204164414U (en) | The soft sealing ball valve that seal ring barb is fixing | |
| CN110242685A (en) | A kind of rotation shaft brake device with safety function | |
| CN101162047A (en) | Highly effective mechanically-sealing apparatus | |
| CN208764321U (en) | A kind of mechanically-sealing apparatus | |
| CN206972918U (en) | A kind of rotating ring common type mechanically-sealing apparatus | |
| CN208474333U (en) | A kind of Bearning mechanism | |
| CN206929387U (en) | A kind of check valve | |
| CN205896495U (en) | High -speed rotary joint of middling pressure | |
| CN208442278U (en) | A kind of rotating machinery seal assembly fixed structure | |
| CN203548912U (en) | Shaft following sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |