CN211175093U - Constant velocity universal joint with seal structure - Google Patents
Constant velocity universal joint with seal structure Download PDFInfo
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- CN211175093U CN211175093U CN201922215905.1U CN201922215905U CN211175093U CN 211175093 U CN211175093 U CN 211175093U CN 201922215905 U CN201922215905 U CN 201922215905U CN 211175093 U CN211175093 U CN 211175093U
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Abstract
The utility model discloses a constant velocity universal joint with a sealing structure, which has the sealing function on a ball cage type universal joint and avoids the leakage of lubricating oil inside the ball cage type universal joint, the technical scheme is that the universal joint comprises a mandrel, a ball-cage universal joint arranged at one end of the mandrel and a telescopic universal joint arranged at the other end of the mandrel, wherein the ball-cage universal joint comprises a bell-shaped shell, the bell-shaped shell comprises an installation cavity, be equipped with seal assembly on the port of installation cavity, seal assembly is including pressing cover, diaphragm and graphite cover, presses the cover to include with the joint portion of installation cavity outer wall block and with the pressfitting portion of installation cavity port conflict, the diaphragm periphery along the block in the inboard of joint portion and pressfitting portion, the dabber includes the slide bar portion, on the slide bar portion was located to the graphite ways, the center of diaphragm was fixed in on the graphite cover, the diaphragm formed annular structure's fold pressing between cover and the graphite cover, the utility model is suitable for an universal joint technical field.
Description
Technical Field
The utility model belongs to the technical field of the universal joint, refer in particular to a constant velocity universal joint with seal structure.
Background
The constant velocity universal joint is a device which connects two shafts with an included angle or a changed mutual position between the shafts and enables the two shafts to transmit power at the same angular speed, and can overcome the problem of unequal speed of the common cross shaft type universal joint.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a constant velocity universal joint with seal structure, seal structure play sealed effect to the rzeppa universal joint, avoid its inside lubricating oil to leak.
The purpose of the utility model is realized like this: the utility model provides a constant velocity cardan joint with seal structure, includes the dabber, arranges the rzeppa universal joint of dabber one end in and arranges the telescopic universal joint of the dabber other end in, and the rzeppa universal joint includes bell housing, star cover, holder and ball, and the bell housing includes the installation cavity, and the star cover is installed in the installation cavity, and the end connection of star cover and dabber, and the holder overlaps outside the star cover, and the ball is located the holder, its characterized in that: be equipped with seal assembly on the port of installation cavity, seal assembly is including pressing cover, diaphragm and graphite cover, presses the cover to include with the joint portion of installation cavity outer wall block and with the pressfitting portion of installation cavity port conflict, the diaphragm periphery along the block in the inboard of joint portion and pressfitting portion, the dabber includes the slide bar portion, graphite ways is located on the slide bar portion, the center of diaphragm is fixed in on the graphite cover, the diaphragm is pressing the fold that forms annular structure between cover and the graphite cover.
By adopting the technical scheme, the diaphragm is made of rubber, is of an annular structure as a whole and is provided with folds, so that the diaphragm can be pulled in the radial direction or the axial direction, one end of the diaphragm is fixed on the outer wall of the bell-shaped shell through the pressing sleeve, and the other end of the diaphragm is axially and movably connected with the mandrel through the graphite sleeve, so that when the mandrel rotates relative to the rzeppa universal joint, the graphite sleeve can be axially and slidably adjusted according to the self stress condition, and the diaphragm is prevented from being torn or the connecting end is prevented from being loosened; the connection reliability can be improved through the arrangement of the clamping portion and the pressing portion, the graphite sleeve is made of graphite materials and is not prone to abrasion when sliding, the fit clearance of the sliding rod portion of the graphite sleeve can be smaller, the sealing performance is improved, and oil leakage is avoided.
The utility model discloses further set up to: the pressure sleeve is provided with an elastic notch, the outer wall of the installation cavity is provided with a first annular groove matched with the clamping portion, the clamping portion is provided with a first clamp spring, the inner wall of the pressing portion is provided with an annular bulge, and the port of the installation cavity is provided with an annular groove matched with the annular bulge.
Through adopting above-mentioned technical scheme, the pressure cover can be made by the foil, opens at one side and establishes the notch, makes it can produce elastic deformation in radial, is convenient for press the assembly between cover and the bell shell, and the assembly back is accomplished, plays the fixed action through first jump ring, produces the pressfitting power through annular arch and annular groove to the border of diaphragm, further improves connection stability and leakproofness.
The utility model discloses further set up to: and a second annular groove is formed in the outer wall of the graphite sleeve, and a second clamping spring for fixing the diaphragm is arranged in the second annular groove.
Through adopting above-mentioned technical scheme, the mounting hole cladding at diaphragm center plays sealed effect on the outer wall of graphite cover, and further improves the connection reliability through second annular and second jump ring, is convenient for simultaneously can dismantle fixedly between diaphragm and the graphite cover.
The utility model discloses further set up to: the surface of the slide bar part is sprayed with a ceramic layer.
Through adopting above-mentioned technical scheme, carry out flame spraying pottery on slide bar portion surface, further improve the wearability.
The utility model discloses further set up to: an oil injection cavity is formed in the bottom of the mounting cavity, an oil injection hole communicated with the oil injection cavity is formed in the bell-shaped shell, and a plug is arranged on the oil injection hole.
Through adopting above-mentioned technical scheme, can be threaded connection between end cap and the oil filler point, through the oil filler point and annotate the setting in oil pocket, conveniently pour into lubricating oil or lubricating grease into in the installation cavity, facilitate the use.
The utility model discloses further set up to: and a dust cover is arranged between the outer shell and the mandrel.
Through adopting above-mentioned technical scheme, the both ends of dust cover also can be fixed in on bell shell and the dabber through the jump ring.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the present invention in a partially enlarged structure of fig. 1;
FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;
the reference numbers in the figures are: 1. a mandrel; 2. a rzeppa universal joint; 3. a telescopic universal joint; 4. a bell housing; 5. a mounting cavity; 6. a seal assembly; 7. pressing the sleeve; 8. a membrane; 9. a graphite sleeve; 10. a clamping part; 11. a press-fit portion; 12. a slide bar part; 13. a first clamp spring; 14. a second clamp spring; 15. an oil injection cavity; 16. an oil filler hole; 17. a plug; 18. a dust cover.
Detailed Description
The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 3:
the utility model provides a constant velocity cardan joint with seal structure, includes dabber 1, arranges in the rzeppa universal joint 2 of dabber 1 one end and arranges in the telescopic universal joint 3 of dabber 1 other end, rzeppa universal joint 2 includes outer race 4, the star cover, holder and ball, outer race 4 includes installation cavity 5, the star cover is installed in installation cavity 5, and the end connection of star cover and dabber 1, the holder overlaps outside the star cover, and the ball is located the holder, its characterized in that: be equipped with seal assembly 6 on the port of installation cavity 5, seal assembly 6 is including pressing cover 7, diaphragm 8 and graphite cover 9, press cover 7 include with the joint portion 10 of 5 outer wall blocks of installation cavity and with the nip portion 11 of 5 ports conflicts of installation cavity, 8 peripheries of diaphragm are along the inboard of block in joint portion 10 and nip portion 11, dabber 1 includes slide bar portion 12, graphite cover 9 covers locates on slide bar portion 12, the center of diaphragm 8 is fixed in on graphite cover 9, diaphragm 8 forms annular structure's fold pressing between cover 7 and graphite cover 9.
By adopting the technical scheme, the diaphragm 8 is made of rubber, is of an annular structure as a whole and has folds, so that the diaphragm can be pulled in the radial direction or the axial direction, one end of the diaphragm 8 is fixed on the outer wall of the bell-shaped shell 4 through the pressing sleeve 7, and the other end of the diaphragm 8 is axially movably connected to the mandrel 1 through the graphite sleeve 9, so that when the mandrel 1 rotates relative to the ball-cage type universal joint 2, the graphite sleeve 9 can be axially adjusted in a sliding manner according to the self stress condition, and the diaphragm 8 is prevented from being torn or the connecting end is prevented from loosening; can improve the connection reliability through the setting of joint portion 10 with pressfitting portion 11, difficult wearing and tearing when graphite cover 9 adopts the graphite material to ensure its slip, and the fit clearance of graphite cover 9 slide bar portion 12 can set up littleer, improves the leakproofness, avoids the oil leak.
The utility model discloses further set up to: the last elasticity notch of having seted up of pressure cover 7 is equipped with the first annular with joint portion 10 adaptation on the outer wall of installation cavity 5, is equipped with first jump ring 13 on the joint portion 10, is equipped with annular arch on the inner wall of nip portion 11, is equipped with the annular groove with the protruding adaptation of annular on the port of installation cavity 5.
Through adopting above-mentioned technical scheme, pressing cover 7 can be made by the foil, opens at one side and establishes the notch, makes it can produce elastic deformation in radial, is convenient for press the assembly between cover 7 and the bell shell 4, and the assembly back is accomplished, plays the fixed action through first jump ring 13, produces the pressfitting power through annular arch and annular groove to the border of diaphragm 8, further improves connection stability and leakproofness.
The utility model discloses further set up to: and a second annular groove is formed in the outer wall of the graphite sleeve 9, and a second clamping spring 14 for fixing the diaphragm 8 is arranged in the second annular groove.
Through adopting above-mentioned technical scheme, the mounting hole cladding at diaphragm 8 center plays sealed effect on the outer wall of graphite cover 9, and further improves the connection reliability through second annular and second jump ring 14, and the diaphragm 8 of being convenient for simultaneously and graphite cover 9 between can dismantle fixedly.
The utility model discloses further set up to: the surface of the slide bar part 12 is coated with a ceramic layer.
By adopting the technical scheme, the ceramic is sprayed on the surface of the sliding rod part 12 by flame, so that the wear resistance is further improved.
The utility model discloses further set up to: an oil injection cavity 15 is formed in the bottom of the mounting cavity 5, an oil injection hole 16 communicated with the oil injection cavity 15 is formed in the outer shell 4, and a plug 17 is arranged on the oil injection hole 16.
Through adopting above-mentioned technical scheme, can be threaded connection between end cap 17 and the oil filler point 16, through the setting of oil filler point 16 and oiling chamber 15, conveniently inject lubricating oil or lubricating grease into installation cavity 5, facilitate the use.
The utility model discloses further set up to: a dust cover 18 is also arranged between the outer shell 4 and the mandrel 1.
By adopting the technical scheme, the two ends of the dust cover 18 can also be fixed on the outer shell 4 and the mandrel 1 through the clamp springs.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a constant velocity cardan joint with seal structure, including dabber (1), arrange in the telescopic universal joint (3) of the rzeppa universal joint (2) of dabber (1) one end and arranging dabber (1) other end in, rzeppa universal joint (2) include bell housing (4), the star cover, holder and ball, bell housing (4) are including installation cavity (5), the star cover is installed in installation cavity (5), and the end connection of star cover and dabber (1), the holder overlaps outside the star cover, and the ball is located the holder, its characterized in that: be equipped with seal assembly (6) on the port of installation cavity (5), seal assembly (6) are including pressing cover (7), diaphragm (8) and graphite cover (9), press cover (7) including with joint portion (10) of installation cavity (5) outer wall block and with lamination part (11) that installation cavity (5) port contradicted, diaphragm (8) periphery is along the inboard of block in joint portion (10) and lamination part (11), dabber (1) includes slide bar portion (12), graphite cover (9) cover is located on slide bar portion (12), the center of diaphragm (8) is fixed in on graphite cover (9), diaphragm (8) form ring structure's fold pressing between cover (7) and graphite cover (9).
2. A constant velocity joint having a sealing structure according to claim 1, wherein: the pressure cover has seted up the elasticity notch on (7), be equipped with on the outer wall of installation cavity (5) with the first annular of joint portion (10) adaptation, be equipped with first jump ring (13) on joint portion (10), be equipped with annular arch on the inner wall of nip portion (11), be equipped with the annular groove with the protruding adaptation of annular on the port of installation cavity (5).
3. A constant velocity joint having a sealing structure according to claim 1, wherein: and a second annular groove is formed in the outer wall of the graphite sleeve (9), and a second clamping spring (14) used for fixing the diaphragm (8) is arranged in the second annular groove.
4. A constant velocity joint having a sealing structure according to claim 1, wherein: the surface of the slide bar part (12) is sprayed with a ceramic layer.
5. A constant velocity joint having a sealing structure according to claim 1, wherein: an oil injection cavity (15) is formed in the bottom of the mounting cavity (5), an oil filling hole (16) communicated with the oil injection cavity (15) is formed in the bell-shaped shell (4), and a plug (17) is arranged on the oil filling hole (16).
6. A constant velocity joint having a sealing structure according to claim 1, wherein: and a dust cover (18) is also arranged between the outer shell (4) and the mandrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215905.1U CN211175093U (en) | 2019-12-11 | 2019-12-11 | Constant velocity universal joint with seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215905.1U CN211175093U (en) | 2019-12-11 | 2019-12-11 | Constant velocity universal joint with seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211175093U true CN211175093U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922215905.1U Active CN211175093U (en) | 2019-12-11 | 2019-12-11 | Constant velocity universal joint with seal structure |
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| Country | Link |
|---|---|
| CN (1) | CN211175093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095530A (en) * | 2020-09-07 | 2020-12-18 | 西南石油大学 | Adjustable negative pressure garbage cleaning machine |
-
2019
- 2019-12-11 CN CN201922215905.1U patent/CN211175093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095530A (en) * | 2020-09-07 | 2020-12-18 | 西南石油大学 | Adjustable negative pressure garbage cleaning machine |
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