CN206274074U - Small eccentricity amount and shock proof oil sealing can be resisted - Google Patents
Small eccentricity amount and shock proof oil sealing can be resisted Download PDFInfo
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- CN206274074U CN206274074U CN201621433599.9U CN201621433599U CN206274074U CN 206274074 U CN206274074 U CN 206274074U CN 201621433599 U CN201621433599 U CN 201621433599U CN 206274074 U CN206274074 U CN 206274074U
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- lip
- oil sealing
- oil
- sealing body
- block plate
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Abstract
Can resist small eccentricity amount and shock proof oil sealing the utility model discloses one kind, including oil sealing body, the oil sealing body protrudes to form main lip and secondary lip with the wall of shaft contacts, inner lip is provided between main lip and secondary lip, and inner lip is arranged on the wall of oil sealing body and shaft contacts, inner lip is more than the distance of main lip and rotating shaft with the distance of rotating shaft.The simple structure of the oil sealing, low cost of manufacture, inner lip is provided with by between main lip and secondary lip, inner lip can increase the followability of main lip and axle, so that factor of effectively stopping a leak, auxiliary realization sealing, prevent oil body from collecting using block plate simultaneously, buffer strip is formed in oil seal lip and oil body, impact of the oil body to oil seal lip can be slowed down, realize pre- oil-leakage-prevention.
Description
Technical field
The utility model is related to a kind of seal, and in particular to one kind can resist small eccentricity amount and shock proof oil sealing.
Background technology
Oil sealing is the mechanical organ for oil sealing, and it will need the part of lubrication to isolate with part of exerting oneself in drive disk assembly,
It is unlikely to allow oil seepage.The form that represents of oil sealing is TC oil sealings, this be a rubber coat completely with self-tightening spring
Two-lip seal, oil sealing generally often refers to this TC outside framework oil seals.There is hair when auto bridge oil seal, the leakage of gearbox oil sealing of automobile
It is raw, considerable proportion is account in car mass issue track, also cause the concern of vehicle producer.
According to the summary of experience that domestic and international manufacturer and client use, the leakage of oil sealing is relevant with following reason：First, oil
The quality of envelope itself is bad.2nd, the quality control deviation of mating plate, lubricating oil.3rd, assembling quality and cleannes are not enough.4th, oil
Seal not enough to the adaptability of practical service environment.
In recent years, oil sealing manufacturer and the factor of leakage of being likely to result in, production, work all to itself are directed to using client
The aspects such as skill are made that many adjustment, are improved a lot in terms of oil sealing quality level, assembling quality level.But oil sealing according to
So there is a phenomenon of seal failure, the rotating speed of the auto bridge oil seal of truck is not high, temperature is not generally also high, but slip
Higher, this has much relations with the applying working condition of auto bridge oil seal.Vehicle bridge can produce very big deformation in heavy duty, cause offset,
Coaxial angle value is bigger than normal, and even more than oil sealing is suitable for scope, therefore, intermittent leakage occurs at these for oil sealing.Together
When, tire is likely to propose requirements at the higher level to the wearability of oil sealing with the airborne dust sand of ground friction production.Present market has can
With the oil sealing of anti-large eccentricity amount.But due in occasions such as automotive axle, complete set of equipments, often being accommodated without enough spaces anti-
Large eccentricity gauging is sealed, it is impossible to which satisfaction is used.
Utility model content
Technical problem to be solved in the utility model is that existing anti-large eccentricity gauging envelope is installed without suitable space,
Cause equipment that leakage still occurs when in use, therefore devise one kind that small eccentricity amount and shock proof oil sealing can be resisted, should
Oil sealing is provided with inner lip by between main lip and secondary lip, and inner lip can increase the followability of main lip and axle, so that
Effective factor of stopping a leak, auxiliary realizes sealing, while impact of the oil body to oil seal lip can be slowed down, realizes pre- leakproof
Oil.
The utility model is achieved through the following technical solutions：
The wall of small eccentricity amount and shock proof oil sealing, including oil sealing body, the oil sealing body and shaft contacts can be resisted
Face is protruded to form main lip and secondary lip, and inner lip is provided between main lip and secondary lip, and inner lip is arranged on oil sealing
On the wall of body and shaft contacts, inner lip is more than the distance of main lip and rotating shaft with the distance of rotating shaft.Present gasoline
The reason for envelope failure, happens occasionally, and the rotating speed of the auto bridge oil seal of truck is high, temperature is not generally also high, but slip
Higher, this has much relations with the applying working condition of auto bridge oil seal.Vehicle bridge can produce very big deformation in heavy duty, cause offset,
Coaxial angle value is bigger than normal, and even more than oil sealing is suitable for scope, therefore, intermittent leakage occurs at these for oil sealing.Together
When, tire is likely to propose requirements at the higher level to the wearability of oil sealing with the airborne dust sand of ground friction production.Oil sealing is all in ring
Shape, is enclosed within the outer wall of Axle Parts, and present market can resist the oil sealing of large eccentricity amount, and this oil sealing is very big in generation
Used during offset, but its size is usually quite greatly, and in the occasions such as automotive axle, complete set of equipments, internal structure
All it is, by strict design, under its space, anti-large eccentricity gauging envelope often to be accommodated without enough spaces, this kind of oil sealing
Use narrow scope.But can there is eccentric leakage again in the equipment such as automobile, therefore, appropriateness solves the oil of anti-eccentricity issues
Envelope also has very big practical value.The oil sealing of this programme design, it is provided with inner lip by between main lip and secondary lip,
Inner lip also constitutes ring-type, and inner lip can increase the followability of main lip and axle, so that factor of effectively stopping a leak, auxiliary realization
Sealing, this kind of oil sealing be typically by the distance design of inner lip and rotating shaft is larger than the distance of main lip and rotating shaft can satisfaction
Use, generally in 0.8-2mm or so, while being also provided with block plate in the inwall of oil sealing body, as oil sealing body, form ring
Shape, and block plate reaches oil sealing body exterior and is close to the wall of rotating shaft, and oil body can be slowed down to oil seal lip using block plate
Impact, realize pre- oil-leakage-prevention.
In block plate work, inevitably there is oil body to pass through with shaft contacts region from block plate, thus in block plate and
The wall of shaft contacts is provided with screw thread, and main lip is arranged between secondary lip and the threaded end face of block plate setting.Screw thread
And shaft clearance identical with the direction of rotation of rotating shaft is smaller, and when rotating shaft rotates, screw thread can play the oil that will pierce gap
Body takes back the effect of seal cavity.
Some connecting poles are set in block plate with the wall of oil sealing body contacts, and connecting pole is set to overall knot with block plate
Structure, and connecting pole is inserted into oil sealing body, realizes the connection of block plate and oil sealing body by connecting pole, fixation and tears open
Unload conveniently, all abandoned without by whole oil sealing during maintenance, reduce and waste, reduce maintenance cost.
In order to ensure the structural stability and durability of oil sealing, also skeleton is provided with oil sealing body.
The utility model compared with prior art, has the following advantages and advantages：The simple structure of the oil sealing, system
Low cost is made, inner lip is provided with by between main lip and secondary lip, inner lip can increase the followability of main lip and axle,
So as to factor of effectively stopping a leak, auxiliary realizes sealing, while prevent oil body from collecting using block plate, in oil seal lip and oil body shape
Into buffer strip, impact of the oil body to oil seal lip can be slowed down, realize pre- oil-leakage-prevention.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model structural representation.
Mark and corresponding parts title in accompanying drawing：
The main lips of 1-, 2- inner lips, 3- pair lips, 4- skeletons, 5- oil sealing bodies, 6- connecting poles, 7- block plates, 8- screw threads.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, is not intended as to restriction of the present utility model.
Embodiment：
As shown in figure 1, small eccentricity amount and shock proof oil sealing can be resisted, including oil sealing body 5, set in oil sealing body 5
There is skeleton 4, the oil sealing body 5 protrudes to form main lip 1 and secondary lip 3, main lip 1 and secondary lip with the wall of shaft contacts
3 is existing structure, for being sealed to axle, below traditional main lip 1, increased inner lip 2, and inner lip 2 is arranged on
Between main lip 1 and secondary lip 3, and inner lip 2 is arranged on oil sealing body 5 and the wall of shaft contacts, inner lip 2 and rotating shaft
Distance must be more than the distance of main lip 1 and rotating shaft, realize that ladder is contacted, its optimum distance scope be then inner lip 2 with
Than main lip 1 and the big 0.8-2mm of distance of rotating shaft, optimum distance value is 1mm to the distance of rotating shaft, so when appearance very large eccentricity amount
Or during fierce bounce, main lip is produced between centers and rocked, gap produces change, and oil body will be from gap if no inner lip
Middle leakage, and then inner lip can increase the followability of main lip and axle after setting inner lip, so that factor of effectively stopping a leak, auxiliary
Realization is helped to seal.
Block plate 7 also is installed in the inwall of oil sealing body 5 simultaneously, and block plate 7 reaches the outside of oil sealing body 5 and and rotating shaft
Wall near forming small―gap suture, the block plate 7 is provided with screw thread 8 with the wall of shaft contacts, and main lip 1 is arranged on secondary lip 3
And block plate 7 is provided between the end face of screw thread 8.The wall contacted with oil sealing body 5 in block plate 7 sets some connecting poles 6, and
Connecting pole 6 is set to overall structure with block plate 7, and connecting pole 6 is inserted into oil sealing body 5.Between block plate 7 and oil sealing body 5
The cavity of composition, this cavity is buffering cavity, and block plate 7 can block most splashing oil bodies, not impact oil seal lip
Position, it is ensured that the safety at lip position, improves its service life, and block plate 7 forms oil seal lip and oil body as buffer gear
Buffer strip such that it is able to effective pre- oil-leakage-prevention.Screw thread 8 is not contacted with the outer wall of rotating shaft, screw thread 8 and rotating shaft when actually used
Outer wall is screwed, while the end face in oil sealing body 5 is also pressed on rotating shaft outer wall under self-tightening spring effect, and screw thread 8
Very small with shaft clearance, when rotating shaft rotates, screw thread 8 can play and will pierce the oil body in gap and take back the work of seal cavity
With.The quantity of connecting pole 6 is at least two, and it is perpendicularly inserted into oil sealing body 5, realizes being tightly connected, and can when repairing
It is individually replaced oil sealing body 5 or block plate 7, reduces cost.
Above-described specific embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, equally replaces
Change, improve, should be included within protection domain of the present utility model.
Claims (7)
1. small eccentricity amount and shock proof oil sealing, including oil sealing body (5), the oil sealing body (5) and shaft contacts can be resisted
Wall protrude to form main lip (1) and secondary lip (3), it is characterised in that the setting between main lip (1) and secondary lip (3)
There is an inner lip (2), and inner lip (2) is arranged on oil sealing body (5) and the wall of shaft contacts, inner lip (2) and rotating shaft
Distance is more than main lip (1) and the distance of rotating shaft.
2. it is according to claim 1 can to resist small eccentricity amount and shock proof oil sealing, it is characterised in that the inner lip
(2) with the distance of rotating shaft than main lip (1) and the big 0.8-2mm of distance of rotating shaft.
3. it is according to claim 1 can to resist small eccentricity amount and shock proof oil sealing, it is characterised in that the oil sealing body
(5) inwall is provided with block plate (7), and block plate (7) reaches oil sealing body (5) outside and is close to the wall of rotating shaft.
4. it is according to claim 3 can to resist small eccentricity amount and shock proof oil sealing, it is characterised in that the block plate (7)
The wall of shaft contacts is provided with screw thread (8).
5. it is according to claim 4 can to resist small eccentricity amount and shock proof oil sealing, it is characterised in that the main lip
(1) it is arranged on secondary lip (3) and block plate (7) is provided between the end face of screw thread (8).
6. it is according to claim 3 can to resist small eccentricity amount and shock proof oil sealing, it is characterised in that the block plate（7）
In the wall that is contacted with oil sealing body (5) some connecting poles (6) are set, and connecting pole (6) is set to overall knot with block plate (7)
Structure, and connecting pole (6) is inserted into oil sealing body (5).
7. as claimed in any of claims 1 to 6 can to resist small eccentricity amount and shock proof oil sealing, its feature exists
In being provided with skeleton (4) in the oil sealing body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621433599.9U CN206274074U (en) | 2016-12-23 | 2016-12-23 | Small eccentricity amount and shock proof oil sealing can be resisted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621433599.9U CN206274074U (en) | 2016-12-23 | 2016-12-23 | Small eccentricity amount and shock proof oil sealing can be resisted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274074U true CN206274074U (en) | 2017-06-23 |
Family
ID=59063718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621433599.9U Active CN206274074U (en) | 2016-12-23 | 2016-12-23 | Small eccentricity amount and shock proof oil sealing can be resisted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135674A (en) * | 2021-11-30 | 2022-03-04 | 中国航发湖南动力机械研究所 | Dynamic seal structure for speed reducer |
-
2016
- 2016-12-23 CN CN201621433599.9U patent/CN206274074U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135674A (en) * | 2021-11-30 | 2022-03-04 | 中国航发湖南动力机械研究所 | Dynamic seal structure for speed reducer |
| CN114135674B (en) * | 2021-11-30 | 2023-11-24 | 中国航发湖南动力机械研究所 | Dynamic seal structure for speed reducer |
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