CN211852545U - Sealing assembly for constant velocity joint - Google Patents
Sealing assembly for constant velocity joint Download PDFInfo
- Publication number
- CN211852545U CN211852545U CN201921837803.7U CN201921837803U CN211852545U CN 211852545 U CN211852545 U CN 211852545U CN 201921837803 U CN201921837803 U CN 201921837803U CN 211852545 U CN211852545 U CN 211852545U
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- ball cage
- connecting portion
- constant velocity
- jackshaft
- seal assembly
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Abstract
The utility model provides a constant velocity cardan joint's seal assembly belongs to mechanical technical field. It has solved prior art and has had the poor problem of stability. This constant velocity cardan joint's seal assembly is located between jackshaft and the ball cage, including position sleeve and seal cover, the position sleeve is the tube-shape and the position sleeve outer end be with ball cage outside assorted connecting portion one, connecting portion one set links firmly mutually outside the ball cage and both, the position sleeve inner has than jackshaft external diameter slightly big connecting portion two, above-mentioned seal cover is connected with jackshaft and connecting portion two respectively at the both ends of the cover on the jackshaft and seal cover. The sealing assembly of the constant velocity universal joint has high stability.
Description
Technical Field
The utility model belongs to the technical field of machinery, a seal assembly of constant velocity universal joint is related to.
Background
The constant velocity universal joint comprises a middle shaft and a ball cage, wherein the end part of the middle shaft is embedded in the ball cage. In order to improve the sealing performance of the joint of the intermediate shaft and the ball cage, a sealing sleeve is sleeved on the intermediate shaft and is respectively connected to the intermediate shaft and the ball cage.
Because the ball cage size is greater than the jackshaft size, such structure leads to the seal cover both ends size difference great, leads to the processing degree of difficulty of seal cover great.
In addition, the joint of the sealing sleeve and the ball cage is located at the outermost part of the constant velocity universal joint, so that the sealing sleeve and the ball cage are easy to fall off under the action of external force, and the stability of the constant velocity universal joint is poor.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, provide a convenient and high constant velocity universal joint's of stability seal assembly of loading and unloading.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a constant velocity cardan joint's seal assembly, constant velocity cardan joint include jackshaft and ball cage, the jackshaft tip inlays in the ball cage, its characterized in that, and this seal assembly is located between jackshaft and the ball cage, including position sleeve and seal cover, the position sleeve is tube-shape and position sleeve outer end for with ball cage outside assorted connecting portion one, connecting portion one set is in the ball cage outside and both link firmly mutually, the position sleeve inner has connecting portion two that is slightly big than the jackshaft external diameter, above-mentioned seal cover is connected with jackshaft and connecting portion two respectively at the both ends of jackshaft on the jackshaft and seal cover.
The sealing assembly is creatively provided with the positioning sleeve on the ball cage, the first connecting part of the positioning sleeve is matched with the ball cage, and the second connecting part of the positioning sleeve is slightly larger than the size of the intermediate shaft, so that the size difference of the two ends of the sealing sleeve is smaller.
One end of the sealing sleeve is connected to the intermediate shaft, the other end of the sealing sleeve is connected to the second connecting portion, the sealing sleeve with the smaller size difference at the two ends can stably cover the joint of the ball cage and the intermediate shaft, and stability of the sealing sleeve is effectively improved.
In the sealing assembly of the constant velocity universal joint, the first connecting part is fixedly connected with the ball cage through a fastener.
In the sealing assembly of the constant velocity universal joint, the connecting part is provided with a connecting edge which is annularly protruded towards the inner side of the connecting part at the two port, the connecting edge is provided with a connecting groove which is annularly concave, and the sealing sleeve is connected at the connecting groove at the end part.
The structure enables the sealing sleeve to be stably connected with the connecting part II.
In the above-mentioned sealing assembly for a constant velocity universal joint, the connecting groove port has a shoulder projecting to the inside thereof, and the inside of the sealing boot has an annularly projecting stop edge which abuts against the shoulder.
The structure can improve the connection firmness between the sealing sleeve and the second connecting part.
In the sealing assembly of the constant velocity universal joint, the first connecting part, the second connecting part, the connecting edge and the shoulder are all of an integrated structure and are made of metal materials.
In the sealing assembly of the constant velocity universal joint, the first connecting part comprises a first connecting section and a second connecting section, the first connecting section is sleeved outside the ball cage, and the second connecting section abuts against the end part of the ball cage.
The contact area of the outer side of the ball cage of the first connecting section is larger, the contact area of the second connecting section and the end part of the ball cage is larger, and the first connecting section and the ball cage can be stably connected together through the structure.
In the sealing assembly of the constant velocity universal joint, a first through connecting hole is formed in the connecting section II, a second through connecting hole is formed in the ball cage, the first connecting hole is opposite to the second connecting hole, and a fastener is arranged at the first connecting hole and the second connecting hole in a penetrating mode.
The fastener penetrates through the first connecting hole and the second connecting hole simultaneously to enable the positioning sleeve to be firmly connected with the ball cage.
Compared with the prior art, the sealing assembly of the constant velocity universal joint has the advantages that the size of the connecting part II of the positioning sleeve is slightly larger than that of the intermediate shaft, and one end of the sealing sleeve is connected to the connecting part II, so that the size difference of the two ends of the sealing sleeve is small, and the processing difficulty of the sealing sleeve is reduced.
Meanwhile, the sealing sleeve is embedded in the second connecting part and can be stably connected under the action of the blocking edge and the shoulder, the connection stability of the sealing sleeve is improved, and the structure of the sealing sleeve is compact.
Drawings
Fig. 1 is a schematic cross-sectional view of a seal assembly of the present constant velocity joint.
In the figure, 1, an intermediate shaft; 2. a ball cage; 2a, connecting holes II; 3. a positioning sleeve; 3a, a first connecting part; 3a1, connecting segment one; 3a2 and a connecting segment II; 3a21, connecting hole one; 3b, a second connecting part; 3b1, connecting edge; 3b11, connecting groove; 3b12, shoulder; 4. sealing sleeves; 4a and a blocking edge.
Detailed Description
As shown in fig. 1, the constant velocity universal joint includes an intermediate shaft 1 and a ball cage 2, and the end of the intermediate shaft 1 is embedded in the ball cage 2.
This constant velocity cardan joint's seal assembly is located between jackshaft 1 and ball cage 2, including position sleeve 3 and seal cover 4, position sleeve 3 is the tube-shape and 3 outer ends of position sleeve be with ball cage 2 outside assorted connecting portion one 3a, connecting portion one 3a cover links firmly in the ball cage 2 outside and both mutually, 3 the inner connecting portion two 3b that have 1 external diameter of a little bigger than jackshaft of position sleeve, above-mentioned seal cover 4 cover is connected with jackshaft 1 and connecting portion two 3b respectively on jackshaft 1 and the both ends of seal cover 4.
The first connecting part 3a is fixedly connected with the ball cage 2 through a fastener.
The second connecting part 3b has a connecting edge 3b1 protruding towards the inner side of the second connecting part, the connecting edge 3b1 has a connecting groove 3b11 recessed in an annular shape, and the end of the sealing sleeve 4 is connected to the connecting groove 3b 11.
The connecting groove 3b11 has a shoulder 3b12 projecting towards the inside thereof at the end, and the sealing sleeve 4 has an annular projecting stop edge 4a on the inside, the stop edge 4a abutting against the shoulder 3b 12.
The first connecting part 3a, the second connecting part 3b, the connecting edge 3b1 and the shoulder 3b12 are all of a one-piece structure and are made of metal materials.
The first connecting part 3a comprises a first connecting section 3a1 and a second connecting section 3a2, the first connecting section 3a1 is sleeved outside the ball cage 2, and the second connecting section 3a2 abuts against the end of the ball cage 2.
The second connecting section 3a2 is provided with a first connecting hole 3a21 in a penetrating way, the ball cage 2 is provided with a second connecting hole 2a in a penetrating way, the first connecting hole 3a21 is opposite to the second connecting hole 2a, and a fastener is arranged at the first connecting hole 3a21 and the second connecting hole 2a in a penetrating way.
The sealing assembly is creatively provided with the positioning sleeve on the ball cage, the first connecting part of the positioning sleeve is matched with the ball cage, and the second connecting part of the positioning sleeve is slightly larger than the size of the intermediate shaft, so that the size difference of the two ends of the sealing sleeve is smaller.
One end of the sealing sleeve is connected to the intermediate shaft, the other end of the sealing sleeve is connected to the second connecting portion, the sealing sleeve with the smaller size difference at the two ends can stably cover the joint of the ball cage and the intermediate shaft, and stability of the sealing sleeve is effectively improved.
Claims (7)
1. The utility model provides a constant velocity cardan joint's seal assembly, constant velocity cardan joint include jackshaft and ball cage, the jackshaft tip inlays in the ball cage, its characterized in that, and this seal assembly is located between jackshaft and the ball cage, including position sleeve and seal cover, the position sleeve is tube-shape and position sleeve outer end for with ball cage outside assorted connecting portion one, connecting portion one set is in the ball cage outside and both link firmly mutually, the position sleeve inner has connecting portion two that is slightly big than the jackshaft external diameter, above-mentioned seal cover is connected with jackshaft and connecting portion two respectively at the both ends of jackshaft on the jackshaft and seal cover.
2. The seal assembly of a constant velocity joint according to claim 1, wherein the first connecting portion is secured to the ball cage by a fastener.
3. The seal assembly of a constant velocity universal joint according to claim 2, wherein said joint portion has a joint rim at its end portion which is annularly projected toward the inside thereof, said joint rim having a coupling groove which is annularly recessed thereon, said seal boot end portion being coupled to said coupling groove.
4. A seal assembly for a constant velocity joint according to claim 3, wherein the connecting groove port has a shoulder projecting inwardly thereof, the sealing boot having an annular projecting ledge on the inside thereof, the ledge abutting against the shoulder.
5. The seal assembly of the constant velocity joint according to claim 4, wherein the first connecting portion, the second connecting portion, the connecting rim and the shoulder are all of a unitary construction and are of a metallic material.
6. The seal assembly of the constant velocity joint according to claim 5, wherein the first connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion being fitted around an outer side of the ball cage, and the second connecting portion abutting against an end of the ball cage.
7. The seal assembly of a constant velocity universal joint according to claim 6, wherein the second connecting section has a first connecting hole therethrough, the ball cage has a second connecting hole therethrough, the first connecting hole is opposite to the second connecting hole, and a fastener is inserted through the first connecting hole and the second connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921837803.7U CN211852545U (en) | 2019-10-29 | 2019-10-29 | Sealing assembly for constant velocity joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921837803.7U CN211852545U (en) | 2019-10-29 | 2019-10-29 | Sealing assembly for constant velocity joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852545U true CN211852545U (en) | 2020-11-03 |
Family
ID=73130611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921837803.7U Active CN211852545U (en) | 2019-10-29 | 2019-10-29 | Sealing assembly for constant velocity joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852545U (en) |
-
2019
- 2019-10-29 CN CN201921837803.7U patent/CN211852545U/en active Active
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| GR01 | Patent grant |