CN208565558U - A kind of labyrinth - Google Patents
A kind of labyrinth Download PDFInfo
- Publication number
- CN208565558U CN208565558U CN201721838585.XU CN201721838585U CN208565558U CN 208565558 U CN208565558 U CN 208565558U CN 201721838585 U CN201721838585 U CN 201721838585U CN 208565558 U CN208565558 U CN 208565558U
- Authority
- CN
- China
- Prior art keywords
- seal
- lip
- support frame
- labyrinth
- self
- 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 - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of labyrinths, including outer oil seal, inner oil seal, first support frame, first seal, first self-tightening spring, second support frame, second seal and the second self-tightening spring, the outer oil seal is equipped with the first support frame, first support frame is equipped with first seal, the first seal is equipped with the first self-tightening spring, the first seal is equipped with labyrinth seal portion, the labyrinth seal portion is equipped with several first sealing lips, the end face of the first seal is equipped with the first primary seal lip and the second primary seal lip, the inner oil seal is equipped with the second support frame, the inner ring of second support frame is equipped with second seal, the second seal is equipped with the second self-tightening spring, using the combination of two special-shaped oil sealings, form the combination oil seal with multiple oil seal lip, Anti- muddy water effect is good, extends the service life of oil sealing, easy for installation.
Description
[technical field]
The utility model relates to the technical field of sealing element, especially a kind of technical field of labyrinth.
[background technique]
To prevent lubricating oil leakage, axis stretch out body part oil sealing to be installed, it is common to use method be provided with an oil
Envelope, the effect of oil sealing general is exactly that the component for needing to lubricate in transmission parts is isolated with component of contributing, and is unlikely to allow lubricating oil
Leakage.Generally there are a large amount of dust and water for the working environment of the vehicles such as tractor, engineering truck and rice field harvester, therefore
Oil sealing for above-mentioned vehicle arrangement is while having good oil sealing effect, it is also necessary to have preferable dust-proof water effect.Such as
Fruit is worked in harsh environment using currently used rotary shaft oil seal, and the service life that will lead to oil sealing is short, and anti-muddy water
The effect is relatively poor, also will affect the normal work of vehicle arrangement when serious, it is proposed that a kind of labyrinth.
[utility model content]
The purpose of this utility model is exactly to solve the problems of the prior art, a kind of labyrinth is proposed, using two
The combination of a abnormal shape oil sealing, forms the combination oil seal with multiple oil seal lip, anti-muddy water effect is good, extends the use of oil sealing
It is service life, easy for installation.
To achieve the above object, the utility model proposes a kind of labyrinths, including outer oil seal, inner oil seal,
One support frame, first seal, the first self-tightening spring, the second support frame, second seal and the second self-tightening spring, it is described
Outer oil seal is equipped with the first support frame, and first support frame is equipped with first seal, sets in the first seal
Have the first self-tightening spring, the first seal is equipped with labyrinth seal portion, the labyrinth seal portion be equipped with several first
Sealing lip, the end face of the first seal are equipped with the first primary seal lip and the second primary seal lip, and the inner oil seal is equipped with the
Two support frames, the inner ring of second support frame are equipped with second seal, and the second seal is equipped with the second self-tightening
Spring, the labyrinth seal portion, the second primary seal lip and the second support frame are fitted close.
Preferably, the first bending part is additionally provided on second support frame, first sealing lip and the first bending
Portion is fitted close, and the inner ring of first bending part is axially extending shoulder, and third primary seal lip is fixed on the shoulder.
Preferably, the number of first sealing lip is 3, first primary seal lip is equipped with the first secondary lip, institute
It states the first secondary lip and shoulder is fitted close.
Preferably, offering the first annular groove in second primary seal lip, the first self-tightening spring is flush-mounted in first
In annular groove, the second seal is equipped with third primary seal lip and the second secondary lip, and the is offered in the third primary seal lip
Two annular grooves, the second self-tightening spring is in the second annular groove.
Preferably, first support frame further includes reinforcing flanging, the cross sectional shape for reinforcing flanging is U-shaped
Shape, the reinforcement flanging are equipped with labyrinth seal portion and the second primary seal lip.
The utility model has the beneficial effects that the utility model passes through oil sealing, inner oil seal, the first support frame, the first sealing
The cooperation of part, the first self-tightening spring, the second support frame, second seal and the second self-tightening spring etc., using two special-shaped oil
The combination of envelope, forms the combination oil seal with multiple oil seal lip, and labyrinth seal portion has multiple sealing lips can be with second
Close sealing space is formed between support bone frame, while two secondary lips are set, and be can be improved leakproofness, is avoided grease leakage, from
Tight spring can compensate for the gap generated due to abrasion, greatly improve the sealing performance of oil sealing.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of schematic cross-section of labyrinth of the utility model；
Fig. 2 is a kind of schematic cross-section of the outer oil seal of four lip dustproof covers of labyrinth of the utility model；
Fig. 3 is a kind of schematic cross-section of the inner oil seal of three lip dustproof covers of labyrinth of the utility model.
[specific embodiment]
Refering to fig. 1 to Fig. 3, a kind of labyrinth of the utility model, including the support of outer oil seal 1, inner oil seal 2, first
Skeleton 3, first seal 4, the first self-tightening spring 5, the second support frame 6, second seal 7 and the second self-tightening spring 8, it is described
Outer oil seal 1 is equipped with the first support frame 3, and first support frame 3 is equipped with first seal 4, the first seal 4
It is equipped with the first self-tightening spring 5, the first seal 4 is equipped with labyrinth seal portion 42, and the labyrinth seal portion 42 is equipped with
The end face of several first sealing lips 421, the first seal 4 is equipped with the first primary seal lip 41 and the second primary seal lip 43,
The inner oil seal 2 is equipped with the second support frame 6, and the inner ring of second support frame 6 is equipped with second seal 7, and described the
Two sealing elements 7 are equipped with the second self-tightening spring 8, and the labyrinth seal portion 42, the second primary seal lip 43 and the second support frame 6 are tight
Close fit.The first bending part 61, first sealing lip 421 and the first bending part 61 are additionally provided on second support frame 6
It is fitted close, the inner ring of first bending part 61 is axially extending shoulder 62, is fixed with third primary seal on the shoulder 62
Lip 71.The number of first sealing lip 421 is 3, and first primary seal lip 41 is equipped with the first secondary lip 411, described the
One secondary lip 411 is fitted close with shoulder 62.The first annular groove, the first self-tightening spring are offered in second primary seal lip 43
5 in the first annular groove, and the second seal 7 is equipped with third primary seal lip 71 and the second secondary lip 72, the third master
The second annular groove is offered in sealing lip 71, the second self-tightening spring 8 is in the second annular groove.First support frame 3
It further include reinforcing flanging 31, the cross sectional shape for reinforcing flanging 31 is U-shaped, and the reinforcement flanging 31 is equipped with labyrinth seal
Portion 42 and the second primary seal lip 43.
Utility model works process:
A kind of labyrinth of the utility model during the work time, by oil sealing, inner oil seal, the first support frame,
The cooperation of first seal, the first self-tightening spring, the second support frame, second seal and the second self-tightening spring etc., using two
The combination of a abnormal shape oil sealing, forms the combination oil seal with multiple oil seal lip, and labyrinth seal portion has multiple sealing lips can
Close sealing space is formed between the second support frame, hardly enters soil, dust inside oil sealing, and it is close to play anti-muddy water
Effect is sealed, reinforcing flanging can be improved the intensity of oil sealing entirety, while two secondary lips are arranged, and can be improved leakproofness, avoids oil
Rouge leakage, self-tightening spring can compensate for the gap generated due to abrasion, greatly improve the sealing performance of oil sealing.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, and any pair of sheet is practical new
Scheme after type simple transformation belongs to the protection scope of the utility model.
Claims (5)
1. a kind of labyrinth, it is characterised in that: including outer oil seal (1), inner oil seal (2), the first support frame (3),
One sealing element (4), the first self-tightening spring (5), the second support frame (6), second seal (7) and the second self-tightening spring (8), institute
Outer oil seal (1) is stated equipped with the first support frame (3), first support frame (3) is equipped with first seal (4), described
First seal (4) is equipped with the first self-tightening spring (5), and the first seal (4) is equipped with labyrinth seal portion (42), described
Labyrinth seal portion (42) is equipped with several first sealing lips (421), and it is close that the end face of the first seal (4) is equipped with the first master
Lip (41) and the second primary seal lip (43) are sealed, the inner oil seal (2) is equipped with the second support frame (6), second support rib
The inner ring of frame (6) is equipped with second seal (7), and the second seal (7) is equipped with the second self-tightening spring (8), the labyrinth
Sealing (42), the second primary seal lip (43) and the second support frame (6) are fitted close.
2. a kind of labyrinth as described in claim 1, it is characterised in that: also set on second support frame (6)
Have the first bending part (61), first sealing lip (421) and the first bending part (61) are fitted close, first bending part
(61) inner ring is axially extending to be had shoulder (62), is fixed with third primary seal lip (71) on the shoulder (62).
3. a kind of labyrinth as claimed in claim 2, it is characterised in that: the number of first sealing lip (421)
It is 3, first primary seal lip (41) is equipped with the first secondary lip (411), and the described first secondary lip (411) and shoulder (62) are close
Cooperation.
4. a kind of labyrinth as described in claim 1, it is characterised in that: opened up in second primary seal lip (43)
There is the first annular groove, for the first self-tightening spring (5) in the first annular groove, the second seal (7) is equipped with third master
Sealing lip (71) and the second secondary lip (72), the third primary seal lip (71) is interior to offer the second annular groove, the second self-tightening bullet
Spring (8) is in the second annular groove.
5. a kind of labyrinth as described in claim 1, it is characterised in that: first support frame (3) further includes
Reinforce flanging (31), the cross sectional shape for reinforcing flanging (31) is U-shaped, and the reinforcement flanging (31) is equipped with labyrinth seal
Portion (42) and the second primary seal lip (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721838585.XU CN208565558U (en) | 2017-12-25 | 2017-12-25 | A kind of labyrinth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721838585.XU CN208565558U (en) | 2017-12-25 | 2017-12-25 | A kind of labyrinth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565558U true CN208565558U (en) | 2019-03-01 |
Family
ID=65446229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721838585.XU Expired - Fee Related CN208565558U (en) | 2017-12-25 | 2017-12-25 | A kind of labyrinth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119652A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of labyrinth |
-
2017
- 2017-12-25 CN CN201721838585.XU patent/CN208565558U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119652A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of labyrinth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20201225 |