CN215521965U - Crankshaft oil seal structure for automobile engine - Google Patents
Crankshaft oil seal structure for automobile engine Download PDFInfo
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- CN215521965U CN215521965U CN202122131938.5U CN202122131938U CN215521965U CN 215521965 U CN215521965 U CN 215521965U CN 202122131938 U CN202122131938 U CN 202122131938U CN 215521965 U CN215521965 U CN 215521965U
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Abstract
The utility model relates to the technical field of crankshaft oil seals, in particular to a crankshaft oil seal structure for an automobile engine, which solves the problem that when a crankshaft oil seal in the prior art is used, a gap is generated between a sealing lip in the oil seal and the inner wall of the oil seal due to the influence of the operation of a crankshaft, so that the whole oil seal cannot be normally used, and oil leakage is caused. The utility model provides a bent axle oil blanket structure for automobile engine, oil blanket skeleton, the inboard lower part fixedly connected with seal lip of oil blanket skeleton, the upper portion of oil blanket skeleton is equipped with the movable area, and elastic connection between the outer wall in movable area and the inner wall of oil blanket skeleton, the outer wall upper portion in movable area and the equal fixedly connected with soft sealing strip in outer wall lower part. The mode provided by the utility model greatly reduces the pressure generated by the sealing lip in the operation of the crankshaft by using the movable belt, and simultaneously can greatly enhance the overall sealing performance of the oil seal by using the soft sealing belt.
Description
Technical Field
The utility model relates to the technical field of crankshaft oil seals, in particular to a crankshaft oil seal structure for an automobile engine.
Background
The oil seal is a common name of a sealing element, namely the sealing of lubricating oil, is a mechanical element for sealing grease, separates a part needing to be lubricated in a transmission part from a force output part, and prevents the lubricating oil from leaking.
The crankshaft oil seal in the prior art is used, and due to the influence of the operation of the crankshaft, a gap is generated between the inner sealing lip of the oil seal and the inner wall of the oil seal as long as time passes, so that the whole oil seal cannot be normally used, the oil leakage is caused, and great inconvenience is brought.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a crankshaft oil seal structure for an automobile engine, which solves the problem that when a crankshaft oil seal in the prior art is used, a gap is generated between a sealing lip inside the oil seal and the inner wall of the oil seal due to the influence of the operation of the crankshaft, so that the whole oil seal cannot be normally used, and oil leakage is caused.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a crank oil seal structure for automobile engine, the oil blanket skeleton, the inboard lower part fixedly connected with seal lip of oil blanket skeleton, the upper portion of oil blanket skeleton is equipped with the activity area, and elastic connection between the outer wall in activity area and the inner wall of oil blanket skeleton, the outer wall upper portion in activity area and the soft sealing strip of the equal fixedly connected with in outer wall lower part, and fixed connection between the other end of two soft sealing strips all and the inner wall of oil blanket skeleton, two soft sealing strips all are the annular array and distribute along the inner wall of oil blanket skeleton.
Preferably, be equipped with two main seal rings between seal lip and the movable belt, and fixed connection between the outer wall of two main seal rings all and the inner wall of oil blanket skeleton to two main seal rings all are the annular and distribute.
Preferably, the inner wall of the movable belt is fixedly connected with an auxiliary sealing ring, and the auxiliary sealing ring is annularly distributed along the inner wall of the movable belt.
Preferably, the outer wall of the movable belt is elastically connected with the inner wall of the oil seal framework through a plurality of extrusion springs.
Preferably, the lower part of the outer wall of the oil seal framework is fixedly connected with two outer sealing rings along the vertical direction.
Preferably, all the extrusion springs are distributed along the inner wall of the oil seal framework in an annular array.
The utility model has at least the following beneficial effects:
when the crankshaft oil seal structure for the automobile engine is used, firstly, the oil seal framework and the engine crankshaft are installed, when the crankshaft operates, the movable belt positioned at the upper part of the oil seal framework can generate a buffering effect under the elastic action, further reducing the pressure of the sealing lip, simultaneously utilizing the soft sealing belt to further enhance the whole sealing performance of the oil seal framework, compared with the crankshaft oil seal in the prior art, because of the influence of the crankshaft operation, a gap is generated between the inner sealing lip of the oil seal and the inner wall of the oil seal over time, the movable belt is utilized to greatly reduce the pressure generated by the sealing lip during the operation of the crankshaft, and the soft sealing belt is utilized to greatly enhance the overall sealing performance of the oil seal.
The utility model also has at least the following beneficial effects:
the main sealing ring is arranged in the middle of the oil seal framework, so that the overall sealing effect of the sealing framework can be further enhanced, and oil leakage of the oil seal can be further prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a top view of the main seal ring of the present invention.
In the figure: 1. an oil seal framework; 2. a movable belt; 3. a soft sealing tape; 4. a compression spring; 5. a secondary seal ring; 6. a primary seal ring; 7. a sealing lip; 8. and an outer seal ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1-3, a crankshaft oil seal structure for automobile engine, including oil blanket skeleton 1, the inboard lower part fixedly connected with seal lip 7 of oil blanket skeleton 1, the upper portion of oil blanket skeleton 1 is equipped with the movable belt 2, and elastic connection between the outer wall of movable belt 2 and the inner wall of oil blanket skeleton 1, the outer wall upper portion of movable belt 2 and the equal fixedly connected with soft sealing strip 3 in outer wall lower part, and fixed connection between the other end of two soft sealing strips 3 and the inner wall of oil blanket skeleton 1, two soft sealing strips 3 all are the annular array distribution along the inner wall of oil blanket skeleton 1, it is concrete, utilize movable belt 2 to significantly reduce the pressure of seal lip 7 to its production in the bent axle function, utilize soft sealing strip 3 can strengthen the whole leakproofness of oil blanket greatly simultaneously.
The scheme has the following working processes:
when the crankshaft oil seal structure for the automobile engine is used, the oil seal framework 1 and the engine crankshaft are installed firstly, and when the crankshaft operates, the movable belt 2 positioned at the upper part of the oil seal framework 1 can generate a buffering effect under the elastic action, so that the pressure of the seal lip 7 can be reduced, and meanwhile, the whole sealing performance of the oil seal framework 1 is further enhanced by the soft sealing belt 3.
According to the working process, the following steps are known:
the pressure generated by the sealing lip 7 in the operation of the crankshaft is greatly reduced by using the movable belt 2, and the whole sealing performance of the oil seal can be greatly enhanced by using the soft sealing belt 3.
Further, be equipped with two main seal rings 6 between seal lip 7 and the activity area 2, and fixed connection between the outer wall of two main seal rings 6 all and the inner wall of oil blanket skeleton 1 to two main seal rings 6 all are the annular and distribute, and are concrete, utilize two main seal rings 6 can further strengthen the sealed effect of oil blanket skeleton 1.
Further, the inner wall of the movable belt 2 is fixedly connected with an auxiliary sealing ring 5, the auxiliary sealing ring 5 is distributed annularly along the inner wall of the movable belt 2, and specifically, the sealing performance of the inner side of the movable belt 2 can be further enhanced by the auxiliary sealing ring 5.
Further, the outer wall of the movable belt 2 is elastically connected with the inner wall of the oil seal framework 1 through a plurality of extrusion springs 4, and specifically, the elastic buffering effect of the movable belt 2 can be guaranteed by the aid of the extrusion springs 4.
Further, the outer wall lower part of oil blanket skeleton 1 is along vertical direction fixedly connected with two outer seal rings 8, and is concrete, utilizes two outer seal rings 8 can further strengthen the sealed effect in the oil blanket skeleton 1 outside.
Furthermore, all the extrusion springs 4 are distributed along the inner wall of the oil seal framework 1 in an annular array.
In conclusion, the sealing effect of the oil seal framework 1 can be further enhanced by utilizing the two main sealing rings 6, the sealing performance of the inner side of the movable belt 2 can be further enhanced by utilizing the auxiliary sealing ring 5, the elastic buffering effect of the movable belt 2 can be ensured by utilizing the extrusion spring 4, and the sealing effect of the outer side of the oil seal framework 1 can be further enhanced by utilizing the two outer sealing rings 8.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a bent axle oil blanket structure for automobile engine, includes oil blanket skeleton (1), its characterized in that, inboard lower part fixedly connected with seal lip (7) of oil blanket skeleton (1), the upper portion of oil blanket skeleton (1) is equipped with movable area (2), and elastic connection between the outer wall of movable area (2) and the inner wall of oil blanket skeleton (1), the outer wall upper portion and the equal fixedly connected with soft sealing strip (3) in outer wall lower part of movable area (2), and fixed connection between the other end of two soft sealing strip (3) all and the inner wall of oil blanket skeleton (1), two soft sealing strip (3) all are the annular array along the inner wall of oil blanket skeleton (1) and distribute.
2. The crankshaft oil seal structure for the automobile engine according to claim 1, wherein two main seal rings (6) are arranged between the seal lip (7) and the movable belt (2), the outer walls of the two main seal rings (6) are fixedly connected with the inner wall of the oil seal framework (1), and the two main seal rings (6) are distributed annularly.
3. The crankshaft oil seal structure for the automobile engine according to claim 1, characterized in that the inner wall of the movable belt (2) is fixedly connected with a secondary seal ring (5), and the secondary seal ring (5) is annularly distributed along the inner wall of the movable belt (2).
4. The crankshaft oil seal structure for the automobile engine according to claim 1, characterized in that the outer wall of the movable belt (2) is elastically connected with the inner wall of the oil seal framework (1) through a plurality of extrusion springs (4).
5. The crankshaft oil seal structure for the automobile engine according to claim 1, characterized in that two outer sealing rings (8) are fixedly connected to the lower portion of the outer wall of the oil seal framework (1) along the vertical direction.
6. The crankshaft oil seal structure for the automobile engine according to claim 4, characterized in that all the extrusion springs (4) are distributed in an annular array along the inner wall of the oil seal framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122131938.5U CN215521965U (en) | 2021-09-06 | 2021-09-06 | Crankshaft oil seal structure for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122131938.5U CN215521965U (en) | 2021-09-06 | 2021-09-06 | Crankshaft oil seal structure for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215521965U true CN215521965U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122131938.5U Active CN215521965U (en) | 2021-09-06 | 2021-09-06 | Crankshaft oil seal structure for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215521965U (en) |
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2021
- 2021-09-06 CN CN202122131938.5U patent/CN215521965U/en active Active
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