CN117052905B - Sealing device for universal joint - Google Patents
Sealing device for universal joint Download PDFInfo
- Publication number
- CN117052905B CN117052905B CN202311310014.9A CN202311310014A CN117052905B CN 117052905 B CN117052905 B CN 117052905B CN 202311310014 A CN202311310014 A CN 202311310014A CN 117052905 B CN117052905 B CN 117052905B
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- Prior art keywords
- protruding part
- protruding
- working
- extends
- annular spring
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- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 230000007704 transition Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000306 component Substances 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 239000004519 grease Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to the technical field of universal joints, in particular to a sealing device for a universal joint. Comprising the following steps: the framework comprises a first working part, a second working part and a third working part, wherein the first working part vertically extends downwards from the left end of the second working part, and the third working part vertically extends upwards from the right end of the second working part; the main body comprises a first protruding part, a second protruding part, a third protruding part, a fourth protruding part, a fifth protruding part and an annular groove part, wherein the first protruding part extends upwards from the left end of the annular groove part, the second protruding part extends leftwards from the left end of the first protruding part, the third protruding part is positioned on the right side of the second protruding part, the fifth protruding part extends rightwards horizontally from the right end of the annular groove part, the fourth protruding part is positioned on the left side of the fifth protruding part, and the first protruding part is provided with a containing cavity; the first working part is positioned in the accommodating cavity; the annular spring is located in the annular groove portion. Thus, the problem of prolonging the sealing life of the universal joint is solved.
Description
Technical Field
The invention relates to the technical field of universal joints, in particular to a sealing device for a universal joint.
Background
The transmission shaft is an important part for transmitting power in the transmission system of the automobile, and the transmission shaft and the drive axle together transmit the power of the engine to wheels so that the automobile generates driving force. With the progress of vehicle technology, the performance requirements of the transmission shaft are also higher and higher, and the transmission shaft technology is rapidly developed. The transmission shaft is used as an important component of an automobile, the performance of the transmission shaft influences aspects of fuel economy, acceleration time, dynamic performance, cost and the like of the automobile to a great extent, the universal joint is used as a core component of the transmission shaft, and particularly the sealing performance of the cross shaft is very critical, so that not only is lubricating grease in the cross shaft ensured not to leak, but also foreign matters are prevented from entering a structure of a connecting piece, and a circular sealing ring is usually adopted at present to seal the cross shaft.
However, in the running process of the automobile, large-particle soil and sand which are continuously impacted exist, and the sealing ring is easy to deform and displace, so that the sealing is invalid. Once the sealing ring fails, lubricating grease leakage and external pollutant invasion can be caused, and impact is generated on the universal joint, so that the service life of the universal joint is influenced.
Disclosure of Invention
In order to solve the problem of how to improve the sealing life of a universal joint, the invention provides a sealing device for the universal joint, which comprises: a skeleton, a main body, and an annular spring;
the framework comprises a first working part, a second working part and a third working part, wherein the first working part vertically extends downwards from the left end of the second working part, and the third working part vertically extends upwards from the right end of the second working part;
the main body comprises a first protruding part, a second protruding part, a third protruding part, a fourth protruding part, a fifth protruding part and an annular groove part, wherein the first protruding part extends upwards from the left end of the annular groove part, the second protruding part extends leftwards from the left end of the first protruding part, the third protruding part is positioned on the right side of the second protruding part, the fifth protruding part extends rightwards horizontally from the right end of the annular groove part, the fourth protruding part is positioned on the left side of the fifth protruding part, and the first protruding part is provided with a containing cavity;
the first working part is positioned in the accommodating cavity;
the annular spring is located within the annular groove portion.
In some embodiments, an upper end surface of the first protruding portion located on the right side of the accommodating cavity abuts against a lower end surface of the second working portion, and a wall thickness of a left side wall of the accommodating cavity is smaller than a wall thickness of a right side wall of the accommodating cavity.
In some embodiments, the left side surface of the second protruding portion extends obliquely rightward to the left side wall of the accommodating cavity, and the right side surface of the second protruding portion extends horizontally.
In some embodiments, the left side of the third lobe extends up and left to the horizontal of the second lobe and the right side of the third lobe extends up and right to the left side of the fourth lobe.
In some embodiments, the left side of the fourth lobe extends upward and leftward to the right side of the third lobe, and the right side of the fourth lobe extends upward in a vertical direction to the fifth lobe.
In some embodiments, the lower side surface of the fifth protruding portion and the right side surface of the fourth protruding portion are in arc transition connection, and the right side surface of the fifth protruding portion extends obliquely downwards and leftwards.
In some embodiments, the left half side arc portion of the annular groove portion is in slant transition connection with the right side wall of the accommodating cavity, the right half side arc portion of the annular groove portion is in slant transition connection with the upper side surface of the fifth protruding portion, and an angle α1 of a center angle of the left half side arc portion is smaller than an angle β1 of a center angle of the right half side arc portion.
In some embodiments, the apex of the third lobe is located to the left of the vertical centerline of the annular spring and the apex of the fourth lobe is located to the right of the vertical centerline of the annular spring.
In some embodiments, a distance L1 from a vertex of the third lobe to a vertical centerline of the annular spring is less than a distance L2 from a vertex of the fourth lobe to a vertical centerline of the annular spring.
In some embodiments, the angle α2 between the left side of the third lobe and the horizontal plane is greater than the angle α3 between the right side of the third lobe and the horizontal plane;
when the annular spring is in a working state, the deformation of the third protruding portion is larger than that of the fourth protruding portion, and the vertical center line of the annular spring is located in the axial deformation area of the third protruding portion.
In order to solve the problem of how to improve the sealing life of the universal joint, the invention has the following advantages:
the sealing device for a universal joint may include: skeleton, main part and ring spring. The first working part of the framework is arranged in the accommodating cavity arranged on the first protruding part of the main body, so that the second working part and the third working part of the framework are abutted with the part of the universal joint sleeve, and the main body is abutted with the part of the universal joint cross shaft, so that the sealing of the universal joint is realized. Because annular spring is located the annular groove portion of main part, when the universal joint carries out the displacement and shakes, the universal joint cross extrusion main part, and annular spring also extrudees the main part, because there are five bellying in the main part, has dispersed by extruded power, and sealed effect is better to realize the improvement to universal joint seal life.
Drawings
FIG. 1 shows a schematic view of a seal for a universal joint according to an embodiment.
Reference numerals: a framework 01; 11 a first working part; a second working section 12; 13 a third working part; 02 a main body; 21 a first boss; 211 a receiving cavity; 22 second bosses; 23 a third boss; 24 fourth bosses; 25 a fifth lobe; 26 an annular groove portion; 03 annular springs; 04 universal joint cross.
Detailed Description
The disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus practice the present disclosure, and are not meant to imply any limitation on the scope of the present disclosure.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment. The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal", etc. refer to an orientation or positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate. Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The present embodiment discloses a sealing device for universal joint, as shown in fig. 1, comprising: the frame 01, the main body 02 and the annular spring 03, wherein the frame 01 comprises a first working part 11, a second working part 12 and a third working part 13, the first working part 11 extends downwards and vertically from the left end of the second working part 12, and the third working part 13 extends upwards and vertically from the right end of the second working part 12; the main body 02 includes a first boss 21, a second boss 22, a third boss 23, a fourth boss 24, a fifth boss 25, and an annular groove 26, the first boss 21 extending upward from a left end of the annular groove 26, the second boss 22 extending leftward from the left end of the first boss 21, the third boss 23 being located on a right side of the second boss 22, the fifth boss 25 extending horizontally rightward from a right end of the annular groove 26, the fourth boss 24 being located on a left side of the fifth boss 25, the first boss 21 having a receiving chamber 211; the first working part 11 is positioned in the accommodating cavity 211; the annular spring 03 is located in the annular groove portion 26.
In the present embodiment, as shown in fig. 1, a sealing device for a universal joint may include a backbone 01, a main body 02, and an annular spring 03. The backbone 01 may be used to assemble the sealing device for the joint with the joint cross 04. The skeleton 01 may include a first working portion 11, a second working portion 12, and a third working portion 13. The first working portion 11 may extend vertically downward from the left end of the second working portion 12, and the third working portion 13 may extend vertically upward from the right end of the second working portion 12. The second working portion 12 may abut against a portion of the universal joint cross 04. The third working part 13 can extend into the universal joint cross 04 for fixation. The body 02 may include a first boss 21, a second boss 22, a third boss 23, a fourth boss 24, a fifth boss 25, and an annular groove portion 26. The annular groove portion 26 may be used to accommodate the annular spring 03. The first protruding portion 21 may extend upward from the left end of the annular groove portion 26, and may abut against the skeleton 01. The second boss 22 may extend leftward from the left end of the first boss 21, and the third boss 23 may be located at the right side of the second boss 22. The fifth boss 25 horizontally extends rightward from the right end of the annular groove portion 26, and the fourth boss 24 may be located at the left side of the fifth boss 25. The third boss 23, the fourth boss 24, and the fifth boss 25 may abut against portions of the universal joint cross 04. The first boss 21 may have a receiving cavity 211, and the first working portion 11 may extend into the receiving cavity 211. By fitting the first working portion 11 of the frame 01 into the accommodation chamber 211 provided in the first boss portion 21 of the main body 02, the second working portion 12 and the third working portion 13 of the frame 01 can be brought into contact with the portion of the joint cross 04, and the main body 02 can also be brought into contact with the portion of the joint cross 04, thereby realizing sealing of the joint cross 04. Because the annular spring 03 is positioned in the annular groove part 26 of the main body 02, when the universal joint cross shaft 04 moves to vibrate, the universal joint cross shaft 04 extrudes the main body 02, and the annular spring 03 also extrudes the main body 02 because the main body 02 is provided with five protruding parts, the extruded force can be dispersed, the sealing effect is good, and the sealing service life of the universal joint cross shaft 04 is prolonged.
In some embodiments, as shown in fig. 1, an upper end surface of the first boss 21 located on the right side of the accommodating chamber 211 abuts against a lower end surface of the second working portion 12, and a wall thickness of a left side wall of the accommodating chamber 211 is smaller than a wall thickness of a right side wall of the accommodating chamber 211.
In this embodiment, as shown in fig. 1, the upper end surface of the first boss portion 21 located on the right side of the accommodation chamber 211 can abut against the lower end surface of the second working portion 12, and an abutment force between the second working portion 12 and the joint cross 04 can be provided, thereby preventing the joint cross 04 from being displaced. The wall thickness of the left side wall of the accommodation chamber 211 may be smaller than the wall thickness of the right side wall of the accommodation chamber 211, and the strength of the abutment of the second working portion 12 with the joint cross 04 may be made larger.
In some embodiments, as shown in fig. 1, the left side surface of the second boss 22 extends obliquely rightward to the left side wall of the accommodating chamber 211, and the right side surface of the second boss 22 extends horizontally.
In the present embodiment, as shown in fig. 1, the left side surface of the second protrusion 22 may extend obliquely rightward to the left side wall of the receiving chamber 211, and may be connected with the first protrusion 21. Meanwhile, the left side surface of the second protruding portion 22 is designed to be an inclined surface, and lubricating grease can slide along the left side surface of the second protruding portion 22 to prevent the lubricating grease from entering the sealing device. The right side surface of the second protruding portion 22 may extend horizontally, so that a small sharp angle of the second protruding portion 22 can be formed, and extrusion is more convenient during sealing.
In some embodiments, as shown in fig. 1, the left side of the third boss 23 extends upward and leftward to the horizontal of the second boss 22, and the right side of the third boss 23 extends upward and rightward to the left side of the fourth boss 24.
In the present embodiment, as shown in fig. 1, the left side surface of the third boss 23 may extend to the upper left to the horizontal portion of the second boss 22, and may be connected with the second boss 22. The right side surface of the third protruding portion 23 can extend to the right and the upper to the left side surface of the fourth protruding portion 24, so that a small sharp angle of the third protruding portion 23 can be formed, and extrusion is facilitated during sealing.
In some embodiments, as shown in fig. 1, the left side of the fourth boss 24 extends upward and leftward to the right side of the third boss 23, and the right side of the fourth boss 24 extends upward in the vertical direction to the fifth boss 25.
In the present embodiment, as shown in fig. 1, the left side surface of the fourth boss 24 may extend upward and leftward to the right side surface of the third boss 23, and may be connected to the third boss 23. The right side surface of the fourth protruding portion 24 may extend upward to the fifth protruding portion 25 along the vertical direction, so that a small sharp angle of the fourth protruding portion 24 can be formed, and the sealing is more convenient to squeeze.
In some embodiments, as shown in fig. 1, the lower side of the fifth boss 25 and the right side of the fourth boss 24 are connected by an arc transition, and the right side of the fifth boss 25 extends obliquely downward and leftward.
In this embodiment, as shown in fig. 1, the lower side surface of the fifth protruding portion 25 may be connected with the right side surface of the fourth protruding portion 24 in an arc transition manner, and the right side surface of the fifth protruding portion 25 may extend obliquely downward and leftward. When the fifth boss 25 receives the pressing force, the right side surface of the fifth boss 25 may abut against the joint cross 04, and the lower side surface of the fifth boss 25 may abut against the joint cross 04, so that sealing may be performed better.
In some embodiments, as shown in fig. 1, the left half-side circular arc portion of the annular groove portion 26 and the right side wall of the accommodating chamber 211 are connected in a slant transition, and the right half-side circular arc portion of the annular groove portion 26 and the upper side surface of the fifth protruding portion 25 are connected in a slant transition, and the angle α1 of the center angle of the left half-side circular arc portion is smaller than the angle β1 of the center angle of the right half-side circular arc portion.
In this embodiment, as shown in fig. 1, the left half-side arc portion of the annular groove portion 26 may be connected to the right side wall of the accommodating cavity 211 in a slant transition manner, and the right half-side arc portion of the annular groove portion 26 may be connected to the upper side surface of the fifth protruding portion 25 in a slant transition manner. The circular arc portion of the annular groove portion 26 may be used to accommodate the annular spring 03. The angle α1 of the center angle of the left half-side arc portion may be smaller than the angle β1 of the center angle of the right half-side arc portion, and when the universal joint cross 04 presses the sealing device, the annular spring 03 also presses the annular groove portion 26, and by setting α1 smaller than β1, the annular spring 03 presses the left half side of the annular groove portion 26, and the supporting strength is larger.
In some embodiments, as shown in fig. 1, the apex of the third boss 23 is located to the left of the vertical centerline of the annular spring 03 and the apex of the fourth boss 24 is located to the right of the vertical centerline of the annular elastomer.
In the present embodiment, as shown in fig. 1, the apex of the third boss 23 may be located on the left side of the vertical center line of the annular spring 03, and the apex of the fourth boss 24 may be located on the right side of the vertical center line of the annular elastic body. When the universal joint cross shaft 04 presses the sealing device, the left half side of the annular groove part 26 is pressed by the annular spring 03, so that the supporting strength is higher, and the sealing effect is better.
In some embodiments, as shown in fig. 1, the distance L1 from the apex of the third boss 23 to the vertical center line of the annular spring 03 is smaller than the distance L2 from the apex of the fourth boss 24 to the vertical center line of the annular spring 03.
In the present embodiment, as shown in fig. 1, by setting the distance L1 from the apex of the third protruding portion 23 to the vertical center line of the annular spring 03 smaller than the distance L2 from the apex of the fourth protruding portion 24 to the vertical center line of the annular spring 03, when the annular spring 03 presses the annular groove portion 26, the pressing position is the left half side of the annular groove portion 26, so that the supporting strength can be made larger, and the sealing effect is better.
In some embodiments, as shown in fig. 1, the angle α2 between the left side of the third protrusion 23 and the horizontal plane is greater than the angle α3 between the right side of the third protrusion 23 and the horizontal plane; when in the working state, the deformation amount of the third protruding portion 23 is larger than the deformation amount of the fourth protruding portion 24, and the vertical center line of the annular spring 03 is located in the axial deformation area of the third protruding portion 23.
In this embodiment, as shown in fig. 1, by setting the included angle α2 between the left side surface of the third protruding portion 23 and the horizontal plane to be larger than the included angle α3 between the right side surface of the third protruding portion 23 and the horizontal plane, when the annular spring 03 presses the annular groove portion 26, the pressing position is the left half side of the annular groove portion 26, so that the supporting strength is greater, and the sealing effect is better. When in the working state, the deformation of the third protruding portion 23 may be greater than the deformation of the fourth protruding portion 24, the vertical center line of the annular spring 03 may be located in the axial deformation area of the third protruding portion 23, so that the annular spring 03 presses the left half side of the annular groove portion 26, the annular spring 03 can press the annular groove portion 26 leftwards, and the sealing effect is better through the support of the third protruding portion 23.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementing the disclosure, and that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.
Claims (1)
1. A sealing device for a universal joint, characterized by comprising: a framework, a main body and an annular spring,
the framework comprises a first working part, a second working part and a third working part, wherein the first working part vertically extends downwards from the left end of the second working part, and the third working part vertically extends upwards from the right end of the second working part;
the main body comprises a first protruding part, a second protruding part, a third protruding part, a fourth protruding part, a fifth protruding part and an annular groove part, wherein the first protruding part extends upwards from the left end of the annular groove part, the second protruding part extends leftwards from the left end of the first protruding part, the third protruding part is positioned on the right side of the second protruding part, the fifth protruding part extends rightwards horizontally from the right end of the annular groove part, the fourth protruding part is positioned on the left side of the fifth protruding part, and the first protruding part is provided with a containing cavity;
the first working part is positioned in the accommodating cavity;
the annular spring is positioned in the annular groove part;
the upper end face of the first protruding part, which is positioned on the right side of the accommodating cavity, is abutted with the lower end face of the second working part, and the wall thickness of the left side wall of the accommodating cavity is smaller than that of the right side wall of the accommodating cavity;
the left side surface of the second protruding part extends to the left side wall of the accommodating cavity in a right inclined mode, and the right side surface of the second protruding part extends horizontally; the left side surface of the second protruding part is a side surface close to the first protruding part, and the right side surface of the second protruding part is a side surface close to the third protruding part;
the left side surface of the third protruding part extends to the left upper side to the horizontal part of the second protruding part, and the right side surface of the third protruding part extends to the right upper side to the left side surface of the fourth protruding part; the vertex of the third protruding part is positioned at the left side of the vertical center line of the annular spring, and the vertex of the fourth protruding part is positioned at the right side of the vertical center line of the annular spring; the distance L1 from the top point of the third protruding part to the vertical center line of the annular spring is smaller than the distance L2 from the top point of the fourth protruding part to the vertical center line of the annular spring; wherein the vertical center line of the annular spring is the center line of the annular spring extending along the vertical direction;
an included angle alpha 2 between the left side surface of the third protruding part and the horizontal plane is larger than an included angle alpha 3 between the right side surface of the third protruding part and the horizontal plane; when the annular spring is in a working state, the deformation of the third protruding part is larger than that of the fourth protruding part, and the vertical center line of the annular spring is positioned in the axial deformation area of the third protruding part;
the left side surface of the fourth protruding portion extends to the left upper side surface of the third protruding portion, and the right side surface of the fourth protruding portion extends to the fifth protruding portion upwards along the vertical direction;
the lower side surface of the fifth protruding part is in arc transition connection with the right side surface of the fourth protruding part, and the right side surface of the fifth protruding part extends obliquely leftwards and downwards;
the left half side circular arc portion of the annular groove portion is connected with the right side wall of the accommodating cavity in an inclined plane transitional manner, the right half side circular arc portion of the annular groove portion is connected with the upper side face of the fifth protruding portion in an inclined plane transitional manner, and the angle alpha 1 of the central angle of the left half side circular arc portion is smaller than the angle beta 1 of the central angle of the right half side circular arc portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311310014.9A CN117052905B (en) | 2023-10-11 | 2023-10-11 | Sealing device for universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311310014.9A CN117052905B (en) | 2023-10-11 | 2023-10-11 | Sealing device for universal joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117052905A CN117052905A (en) | 2023-11-14 |
| CN117052905B true CN117052905B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311310014.9A Active CN117052905B (en) | 2023-10-11 | 2023-10-11 | Sealing device for universal joint |
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| Country | Link |
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| CN (1) | CN117052905B (en) |
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| JP2003322260A (en) * | 2002-04-30 | 2003-11-14 | Nok Corp | Sealing device |
| CN204201079U (en) * | 2014-06-19 | 2015-03-11 | 无锡恩福油封有限公司 | Seal arrangement |
| CN105318009A (en) * | 2014-07-30 | 2016-02-10 | 无锡恩福油封有限公司 | Sealing device and manufacture method for the same |
| CN107166035A (en) * | 2017-06-19 | 2017-09-15 | 清华大学 | A kind of many lip damping oil sealings of magnetic |
| CN212251132U (en) * | 2019-05-07 | 2020-12-29 | Nok株式会社 | Sealing device |
| CN113623401A (en) * | 2020-05-07 | 2021-11-09 | 斯凯孚公司 | Sleeve for sealing assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4426334B2 (en) * | 2004-02-25 | 2010-03-03 | 三菱電線工業株式会社 | Sealing material |
| US20070007731A1 (en) * | 2005-07-11 | 2007-01-11 | Zahn Henry W | Double lip dust excluder fork seal |
-
2023
- 2023-10-11 CN CN202311310014.9A patent/CN117052905B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322260A (en) * | 2002-04-30 | 2003-11-14 | Nok Corp | Sealing device |
| CN204201079U (en) * | 2014-06-19 | 2015-03-11 | 无锡恩福油封有限公司 | Seal arrangement |
| CN105318009A (en) * | 2014-07-30 | 2016-02-10 | 无锡恩福油封有限公司 | Sealing device and manufacture method for the same |
| CN107166035A (en) * | 2017-06-19 | 2017-09-15 | 清华大学 | A kind of many lip damping oil sealings of magnetic |
| CN212251132U (en) * | 2019-05-07 | 2020-12-29 | Nok株式会社 | Sealing device |
| CN113623401A (en) * | 2020-05-07 | 2021-11-09 | 斯凯孚公司 | Sleeve for sealing assembly |
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| Publication number | Publication date |
|---|---|
| CN117052905A (en) | 2023-11-14 |
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