CN207393952U - A kind of low speed combination auto bridge oil seal that can be dust-proof - Google Patents
A kind of low speed combination auto bridge oil seal that can be dust-proof Download PDFInfo
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- CN207393952U CN207393952U CN201720964365.5U CN201720964365U CN207393952U CN 207393952 U CN207393952 U CN 207393952U CN 201720964365 U CN201720964365 U CN 201720964365U CN 207393952 U CN207393952 U CN 207393952U
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- inner frame
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- lip
- seal body
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Abstract
The utility model is related to a kind of low speed that can be dust-proof to combine auto bridge oil seal, inner oil seal body including being in hollow cylinder and the outer oil seal body around inner oil seal body and on the outside of it, the dustproof lip and inner frame that interior sealing body and external seal body are equipped with, several dust-proof enclosure spaces are enclosed between outer skeleton, if so as to form the barrier of the dust-proof anti-muddy water in arterial highway, so that the oil sealing of the utility model patent has the characteristic to work under the working condition of very severe, installation is easy in place, it is suitble to the assembly line of very severe, installation effectiveness is high, not the characteristics of not easily causing oil sealing assembling failure.
Description
Technical field
The utility model is related to a kind of oil sealing more particularly to a kind of combination auto bridge oil seals, belong to rotation axis oil seal technique
Field.
Background technology
At present, with the continuous improvement of Mechanization Level, developed country's agriculture field enters mechanization and information already
Change level, and at the same time domestic agricultural nonirrigated farmland or paddy field locomotive dosage is also increasing year by year.Locomotive is in evils such as paddy fields
Under bad working condition, run time is very long, and the sundries such as muddy water, grains of sand directly contact for a long time with vehicle bridge.Many oil at this stage
Producer is sealed when solving the problems, such as this, mainly works on material and oil sealing distribution, for example using series system, connects two
Oil sealing, outer oil seal nitrile rubber mainly do dust-proof be used；Inner oil seal fluorine glue, does dynamic sealing use.But this mode, not only carry
High material cost, improves installation cost, and does not solve oil sealing fundamentally.Because the oil sealing of outside is in always
Dry grinding state, and most oil seal failure, typically since dust-proof failure.In this severe working condition
Under, if all improvement related with this of anti-muddy water cannot be solved the problems, such as thoroughly, effect all can be not satisfactory.
Utility model content
The utility model for existing locomotive under the conditions of bad working environments auto bridge oil seal insufficient existing for dust-proof aspect, carry
For it is a kind of can efficient dustproof, anti-muddy water low speed combine auto bridge oil seal.
The technical solution that the utility model solves above-mentioned technical problem is as follows：
A kind of low speed combination auto bridge oil seal that can be dust-proof, including being in the inner oil seal body of hollow cylinder and around inner oil seal body
And the outer oil seal body on the outside of it, the inner oil seal body include inner frame and interior sealing body, the bottom of the inner frame is equipped with
Outwardly extending end face, the interior sealing consideration invest the outside of inner frame, and the end of the interior sealing body is equipped at least one
Dustproof lip, the outer oil seal body include outer skeleton and external seal body, after the end bending of the outer skeleton or inner frame with in-seam
Frame, outer skeleton cooperatively form position limiting structure, and the bottom surface bending of the outer skeleton, the external seal body is adhered on outer skeleton and position
In the space formed in outer skeleton and inner frame end face, the external seal body is equipped with primary seal lip and at least one dustproof lip,
The primary seal lip is contacted with the cylindrical interference of inner frame, and the dustproof lip is enclosed several with inner frame, outer skeleton
Dust-proof enclosure space.
Based on the above technical solutions, the utility model can also do following improvement.
Further, the end of the interior sealing body is equipped with the first and second dustproof lips, set on the external seal body there are one
3rd dustproof lip, first dustproof lip enclose the first dust-proof enclosure space with inner frame and its base, and described first is dust-proof
Lip, the second dustproof lip and inner frame enclose the dogleg section of the second dust-proof enclosure space, second dustproof lip and inner frame
It encloses the 3rd dust seal and closes space, the 3rd dustproof lip encloses the 4th dust-proof enclosure space with outer skeleton.
Further, the outer skeleton section is in " h " shape, and forms position limiting structure with inner frame end face.
Further, the inner frame includes the first inner frame and the second inner frame, the first inner frame in hollow cylinder and
Bottom is equipped with outwardly extending end face, and the end face of the second inner frame and the first inner frame mutually attaches and upwardly extends, with outer skeleton
Cooperatively form position limiting structure.
Further, the upper end of the inner frame is equipped with dust-proof skeleton, and the dust-proof skeleton is across inner frame, outer skeleton
Superjacent air space and downward bending.
Further, the primary seal lip is made of PTFE.
Further, the outside of the external seal body, which is equipped with, holds spring tightly.
The characteristics of the utility model auto bridge oil seal, is as follows：
Inner oil seal is interference fitted by the size between interior sealing body and hub spindle on hub spindle, plays the work of static seal
With while inner oil seal is rotated together with hub spindle, and outer oil seal, which passes through outer skeleton and with hub oil seal assembles cavity interference and realize, takes turns
The static seal oil sealing of hub cavity, the tight-lipped in-seam for being attached to the inner oil seal with being rotated together with hub spindle of the primary seal lip of outer oil seal
The oil sealing of dynamic sealing is realized on the external cylindrical surface of frame, is designed with dust-proof lip on outer oil seal, there are one with the inner frame of inner oil seal
Fixed gap realizes dust reduction capability；Rubber bumps are designed on outer oil seal, it is therefore an objective to which oil sealing is pressed into the frock pressure of oil sealing in assembling
Firmly inner oil seal is together pressed into interior outer oil seal by the rubber bumps of outer oil seal the designated position of hub spindle and wheel hub cavity, together
When ensure that the cooperation of interior outer oil seal meets the requirement of design.
The beneficial effects of the utility model are：
1) it is anti-that several are enclosed between interior sealing body and external seal body are equipped with dustproof lip and inner frame, outer skeleton
Dirt enclosure space, if so as to form the barrier of the dust-proof anti-muddy water in arterial highway, along with scribbling substantial amounts of lubrication at each dustproof construction
Fat is engaged with dust-proof enclosure space and forms excellent anti-muddy water structure；
2) outer skeleton or inner frame bending and it is fitted to each other to form position limiting structure, /V convenient for assembly, and one is formed again
The dustproof space of road closing, so that the oil sealing of the utility model patent has what is worked under the working condition of very severe
Characteristic, installation easily in place, are suitble to the assembly line of very severe, and installation effectiveness is high, does not easily cause the characteristics of oil sealing assembling failure.
Description of the drawings
Fig. 1 is the structure diagram of 1 auto bridge oil seal of the utility model embodiment；
Fig. 2 is the structure diagram of 2 auto bridge oil seal of the utility model embodiment；
Fig. 3 is the structure diagram of 3 auto bridge oil seal of the utility model embodiment；
Fig. 4 is the structure diagram of 4 auto bridge oil seal of the utility model embodiment；
Fig. 5 is the structure diagram of 5 auto bridge oil seal of the utility model embodiment；
In Fig. 1-Fig. 5,1, inner oil seal body；2nd, outer oil seal body；3rd, inner frame；31st, the first inner frame；32nd, the second inner frame；
4th, interior sealing body；5th, end face；6th, the first dustproof lip；7th, the second dustproof lip；8th, outer skeleton；9th, external seal body；10th, primary seal lip；
11st, the 3rd dustproof lip；12nd, the first dust-proof enclosure space；13rd, the second dust-proof enclosure space；14th, the 3rd dust seal closes space；15、
4th dust-proof enclosure space；16th, spring is held tightly；17th, dust-proof skeleton.
Specific embodiment
The principle and feature of the utility model are described below in conjunction with example, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
Embodiment 1：
As shown in Figure 1, a kind of low speed combination auto bridge oil seal that can be dust-proof, 1 He of inner oil seal body including being in hollow cylinder
Outer oil seal body 2 around inner oil seal body and on the outside of it, inner oil seal body include inner frame 3 and interior sealing body 4, the bottom of inner frame
Portion is equipped with outwardly extending end face 5, and interior sealing shows consideration for the outside for investing inner frame, and the end of interior sealing body is equipped with the first dustproof lip
6 and second dustproof lip 7, outer oil seal body include outer skeleton 8 and external seal body 9, the section of outer skeleton is in " h " shapes, the bottom of outer skeleton
Inward-facing bending, the end of outer skeleton and the end face of inner frame cooperatively form position limiting structure, and external seal body is adhered on outer skeleton
And in the space that outer skeleton is formed with inner frame end face, the outside of external seal body, which is equipped with, holds spring 16 tightly, on external seal body
Equipped with 10 and the 3rd dustproof lip 11 of primary seal lip, primary seal lip is contacted with the cylindrical interference of inner frame, the first dustproof lip with it is outer
The first dust-proof enclosure space 12 is enclosed between skeleton, is enclosed between the first dustproof lip, the second dustproof lip and outer skeleton
Second dust-proof enclosure space 13, is enclosed the 3rd dust seal and closes space 14, the 3rd is dust-proof between the second dustproof lip and outer skeleton
The 4th dust-proof enclosure space 15 is enclosed between lip and inner frame.
Embodiment 2：
As shown in Fig. 2, a kind of low speed combination auto bridge oil seal that can be dust-proof, 1 He of inner oil seal body including being in hollow cylinder
Outer oil seal body 2 around inner oil seal body and on the outside of it, inner oil seal body include inner frame 3 and interior sealing body 4, the bottom of inner frame
Portion is equipped with outwardly extending end face 5, and interior sealing shows consideration for the outside for investing inner frame, and the end of interior sealing body is equipped with the first dustproof lip
6 and second dustproof lip 7, outer oil seal body include outer skeleton 8 and external seal body 9, the section of outer skeleton is in " h " shapes, the bottom of outer skeleton
Inward-facing bending, the end of outer skeleton and the end face of inner frame cooperatively form position limiting structure, and external seal body is adhered on outer skeleton
And in the space that outer skeleton is formed with inner frame end face, external seal body is equipped with 10 and the 3rd dustproof lip 11 of primary seal lip,
Primary seal lip is contacted with the cylindrical interference of inner frame, and primary seal lip is made of PTFE, is enclosed between the first dustproof lip and outer skeleton
It closes and forms the first dust-proof enclosure space 12, the second dust seal is enclosed between the first dustproof lip, the second dustproof lip and outer skeleton
Space 13 is closed, the 3rd dust seal is enclosed between the second dustproof lip and outer skeleton and closes space 14, the 3rd dustproof lip and inner frame
Between be enclosed the 4th dust-proof enclosure space 15.
Embodiment 3：
As shown in figure 3, a kind of low speed combination auto bridge oil seal that can be dust-proof, 1 He of inner oil seal body including being in hollow cylinder
Outer oil seal body 2 around inner oil seal body and on the outside of it, inner oil seal body include inner frame 3 and interior sealing body 4, the bottom of inner frame
Portion is equipped with outwardly extending end face 5, is upwardly extended after the bending of end face, interior sealing shows consideration for the outside for investing inner frame, interior sealing body
End be equipped with the first dustproof lip 6 and the second dustproof lip 7, outer oil seal body include outer skeleton 8 and external seal body 9, the end of inner frame
Position limiting structure is cooperatively formed after the extension bending of face with outer skeleton, external seal body is adhered on outer skeleton and positioned at outer skeleton and in-seam
In the space that frame is formed, external seal body is equipped with the cylinder of 10 and the 3rd dustproof lip 11 of primary seal lip, primary seal lip and inner frame
Face Interference contact, the outside of external seal body, which is equipped with, holds spring tightly, and it is dust-proof to be enclosed first between the first dustproof lip and outer skeleton
Enclosure space 12 is enclosed the second dust-proof enclosure space 13 between first dustproof lip, the second dustproof lip and outer skeleton, second is anti-
The 3rd dust seal is enclosed between dirt lip and outer skeleton and closes space 14, the 4th is enclosed between the 3rd dustproof lip and inner frame
Dust-proof enclosure space 15.
Embodiment 4：
As shown in figure 4, a kind of low speed combination auto bridge oil seal that can be dust-proof, 1 He of inner oil seal body including being in hollow cylinder
Outer oil seal body 2 around inner oil seal body and on the outside of it, inner oil seal body include inner frame 3 and interior sealing body 4, the inner frame
Including the first inner frame 31 and the second inner frame 32, the first inner frame is equipped with outwardly extending end face in hollow cylinder and bottom
5, the end face of the second inner frame and the first inner frame mutually attaches and upwardly extends, and interior sealing consideration invests the outer of the first inner frame
Side, the end of interior sealing body are equipped with the first dustproof lip 6 and the second dustproof lip 7, and outer oil seal body includes outer skeleton 8 and external seal body 9,
The end of second inner frame is engaged to form position limiting structure with outer skeleton, and external seal body is adhered to the end of outer skeleton and positioned at outer
In the space that skeleton is formed with inner frame end face, external seal body is equipped with 10 and the 3rd dustproof lip 11 of primary seal lip, primary seal lip
It is contacted with the cylindrical interference of inner frame, the outside of external seal body, which is equipped with, holds spring tightly, is enclosed between the first dustproof lip and outer skeleton
It closes and forms the first dust-proof enclosure space 12, the second dust seal is enclosed between the first dustproof lip, the second dustproof lip and outer skeleton
Space 13 is closed, the 3rd dust seal is enclosed between the second dustproof lip and outer skeleton and closes space 14, the 3rd dustproof lip and inner frame
Between be enclosed the 4th dust-proof enclosure space 15.
Embodiment 5：
As shown in figure 5, a kind of low speed combination auto bridge oil seal that can be dust-proof, 1 He of inner oil seal body including being in hollow cylinder
Outer oil seal body 2 around inner oil seal body and on the outside of it, inner oil seal body include inner frame 3 and interior sealing body 4, and inner frame is in sky
The heart is cylindrical and bottom is equipped with outwardly extending end face 5, is upwardly extended after the bending of end face, interior sealing consideration invests the outer of inner frame
Side, the end of interior sealing body are equipped with the first dustproof lip 6 and the second dustproof lip 7, and outer oil seal body includes outer skeleton 8 and external seal body 9,
Inner frame end face bending upwardly extend after is engaged to form position limiting structure with outer skeleton, external seal body be adhered on outer skeleton and
In the space that outer skeleton and inner frame end face are formed, external seal body is equipped with 10 and the 3rd dustproof lip 11 of primary seal lip, main
Sealing lip is contacted with the cylindrical interference of inner frame, and the outside of external seal body, which is equipped with, holds spring tightly, the first dustproof lip and outer skeleton
Between be enclosed the first dust-proof enclosure space 12, be enclosed second between the first dustproof lip, the second dustproof lip and outer skeleton
Dust-proof enclosure space 13 is enclosed the 3rd dust seal and closes space 14 between second dustproof lip and outer skeleton, the 3rd dustproof lip with
The 4th dust-proof enclosure space 15 is enclosed between inner frame, the upper end of inner frame is equipped with dust-proof skeleton 17, described dust-proof
Skeleton is across inner frame, the superjacent air space of outer skeleton and downward bending.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. it is a kind of can be dust-proof low speed combination auto bridge oil seal, including be in the inner oil seal body of hollow cylinder and around inner oil seal body simultaneously
Outer oil seal body on the outside of it, the inner oil seal body include inner frame and interior sealing body, the bottom of the inner frame be equipped with to
The end face of outer extension, the interior sealing consideration invest the outside of inner frame, and the end of the interior sealing body is equipped at least one anti-
Dirt lip, the outer oil seal body include outer skeleton and external seal body, after the end bending of the outer skeleton or inner frame with inner frame,
Outer skeleton cooperatively forms position limiting structure, the bottom surface bending of the outer skeleton, and the external seal body is adhered on outer skeleton and is located at
In the space that outer skeleton is formed with inner frame end face, the external seal body is equipped with primary seal lip and at least one dustproof lip, institute
It states primary seal lip to contact with the cylindrical interference of inner frame, the dustproof lip is enclosed several with inner frame, outer skeleton and prevents
Dirt enclosure space.
2. low speed according to claim 1 combines auto bridge oil seal, which is characterized in that the end of the interior sealing body is equipped with the
One and second dustproof lip, the external seal body be equipped with the 3rd dustproof lip, first dustproof lip is enclosed with inner frame and its base
The first dust-proof enclosure space is synthesized, first dustproof lip, the second dustproof lip and inner frame enclose the second dust-proof enclosure space,
Second dustproof lip and the dogleg section of inner frame enclose the 3rd dust seal and close space, the 3rd dustproof lip and outer skeleton
Enclose the 4th dust-proof enclosure space.
3. low speed according to claim 1 or 2 combines auto bridge oil seal, which is characterized in that the outer skeleton section is in " h "
Shape, and form position limiting structure with inner frame end face.
4. low speed according to claim 1 or 2 combines auto bridge oil seal, which is characterized in that the inner frame is included in first
Skeleton and the second inner frame, the first inner frame are equipped with outwardly extending end face in hollow cylinder and bottom, the second inner frame with
The end face of first inner frame mutually attaches and upwardly extends, and position limiting structure is cooperatively formed with outer skeleton.
5. low speed according to claim 1 or 2 combines auto bridge oil seal, which is characterized in that the upper end peace of the inner frame
Equipped with dust-proof skeleton, the dust-proof skeleton is across inner frame, the superjacent air space of outer skeleton and downward bending.
6. low speed according to claim 1 or 2 combines auto bridge oil seal, which is characterized in that the primary seal lip is by PTFE systems
Into.
7. low speed according to claim 1 or 2 combines auto bridge oil seal, which is characterized in that is set on the outside of the external seal body
There is holding spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720964365.5U CN207393952U (en) | 2017-08-03 | 2017-08-03 | A kind of low speed combination auto bridge oil seal that can be dust-proof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720964365.5U CN207393952U (en) | 2017-08-03 | 2017-08-03 | A kind of low speed combination auto bridge oil seal that can be dust-proof |
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| Publication Number | Publication Date |
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| CN207393952U true CN207393952U (en) | 2018-05-22 |
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ID=62417889
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720964365.5U Active CN207393952U (en) | 2017-08-03 | 2017-08-03 | A kind of low speed combination auto bridge oil seal that can be dust-proof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486473A (en) * | 2019-08-06 | 2019-11-22 | 昆明学院 | A kind of novel rotary rotating shaft lip-type packing |
-
2017
- 2017-08-03 CN CN201720964365.5U patent/CN207393952U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486473A (en) * | 2019-08-06 | 2019-11-22 | 昆明学院 | A kind of novel rotary rotating shaft lip-type packing |
| CN110486473B (en) * | 2019-08-06 | 2021-03-19 | 昆明学院 | Novel rotary shaft lip-shaped sealing ring |
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