CN210889973U - Planetary gear shaft limiting structure and differential mechanism assembly applying same - Google Patents
Planetary gear shaft limiting structure and differential mechanism assembly applying same Download PDFInfo
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- CN210889973U CN210889973U CN201821768453.9U CN201821768453U CN210889973U CN 210889973 U CN210889973 U CN 210889973U CN 201821768453 U CN201821768453 U CN 201821768453U CN 210889973 U CN210889973 U CN 210889973U
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Abstract
The utility model relates to a planetary gear axle limit structure and a differential assembly applied by the same, which comprises a right differential shell, a split pin and a short planetary gear axle, wherein the hole wall of the hole used for installing the short planetary gear axle in the right differential shell is provided with a lock pin hole, the position of the lock pin hole is the end part of the short planetary gear axle, and a long planetary gear axle is arranged in a cross hole without the lock pin hole of the right differential shell; the short planetary gear shaft is arranged in a cross hole with a lock pin hole of the right differential shell, and the end surface of the short planetary gear shaft is inserted into the groove of the long planetary gear shaft; the split pin is inserted through the lock pin hole, the end face of the short planet gear shaft is lapped, one side of the split pin is bent by 90 degrees, and the other side of the split pin is bent by 10 degrees. The technical problems of short planetary gear shaft separation and differential failure caused by long time and large vibration in the prior art are solved.
Description
Technical Field
The utility model belongs to the differential mechanism field of automobile drive axle, concretely relates to planetary gear axle limit structure and differential mechanism assembly of using thereof.
Background
The differential mechanism has the advantages that the cross shafts are replaced by two short planet gear shafts and one long planet gear shaft, the differential mechanism has good differential reliability, and the two short planet gear shafts need to be additionally provided with axial limiting devices. At present, the elastic cylindrical pin is adopted to axially limit the short planetary gear shaft, and the existing defect is that the elastic cylindrical pin is positioned by the elastic axial direction of the elastic cylindrical pin, and after the elastic cylindrical pin is subjected to larger vibration or used for a long time, the problems of looseness in matching, axial movement and even falling are easy to occur, so that the short planetary gear shaft is separated from the planetary gear shaft and the differential failure is caused.
Disclosure of Invention
The utility model aims at providing a planetary gear axle limit structure and differential mechanism assembly who uses thereof realizes the axial positioning of more reliable planetary gear axle, has solved among the prior art because the short planetary gear axle that appears for a long time and big vibration deviate from with differential inefficacy technical problem.
The utility model aims at realizing through the following technical scheme:
a limit structure of a planet gear shaft comprises a differential right shell 6, a split pin 1 and a short planet gear shaft 2, wherein a lock pin hole 16 is formed in the wall of a hole in the differential right shell 6 for mounting the short planet gear shaft 2, the lock pin hole 16 is positioned at the end part of the short planet gear shaft 2, and a long planet gear shaft 7 is arranged in a cross-shaped hole without the lock pin hole 16 in the differential right shell 6; the short planet gear shaft 2 is arranged in a cross hole with a lock pin hole 16 of the right differential shell 6, and the end surface is inserted into the groove of the long planet gear shaft 7; the cotter pin 1 is inserted through the lock pin hole 16, the end surface of the short planet gear shaft 2 is lapped, one side of the cotter pin 1 is bent by 90 degrees, and the other side is bent by 10 degrees.
As a more excellent technical solution of the utility model: two locking pin holes 16 on the right differential case 6 are arranged in parallel and are perpendicular to the short planet gear shaft 2.
The utility model also provides a differential mechanism assembly, a second tapered roller bearing 11 is sleeved on the shaft diameter of the outer end of the right differential mechanism shell 6, and the end surfaces are jointed; the half axle gear gasket 13 is attached to the plane of the right differential case 6, the first half axle gear 12 is arranged in a round hole in the right differential case 6 through the round hole of the half axle gear gasket 13, and the end surface is attached to the half axle gear gasket 13; the convex spherical surfaces of the four planetary gear gaskets 9 are attached to the concave spherical surface of the differential right shell 6, and the convex planes of the four planetary gears 10 are arranged on the concave spherical surface of the planetary gear gaskets 9; a locking pin hole 16 is formed in the wall of a hole for mounting the short planet gear shaft 2 in the right differential case 6, the locking pin hole 16 is positioned at the end part of the short planet gear shaft 2, and the long planet gear shaft 7 is arranged in a cross-shaped hole without the locking pin hole 16 of the right differential case 6; the short planet gear shaft 2 is arranged in a cross hole with a lock pin hole 16 of the right differential shell 6, and the end surface is inserted into the groove of the long planet gear shaft 7; the split pin 1 is inserted through the lock pin hole 16, the end surface of the short planet gear shaft 2 is lapped, one side of the split pin 1 is bent by 90 degrees, and the other side of the split pin is bent by 10 degrees; the right differential case 6 is arranged in a round hole of the driven bevel gear 5, and the end faces of the right differential case are attached; the second side gear 14 is engaged with the tooth surface of the planetary gear 10, and the side gear washer 13 is fitted into the shaft diameter of the planetary gear 10; the outer spigot of the differential left shell 4 is arranged in the inner spigot of the differential right shell 6, and the end faces are attached; the bolts 8 are screwed into the threaded holes of the driven bevel gear 5 and screwed tightly through flange distribution holes of the differential left shell 4 and the differential right shell 6; the first tapered roller bearing 3 is pressed into the shaft diameter of the differential left case 4.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a structural reliability is higher, the assembly is more simple and convenient and the cost is lower, and aspects such as manufacturability and economic nature all have obvious advantage.
Drawings
FIG. 1 is a cross-sectional view of a differential of the present invention;
FIG. 2 is a partial view of FIG. 1;
FIG. 3 is a cross-sectional view of the right differential case of the present invention;
in the figure: 1. cotter pin, 2. short planet gear shaft, 3. first tapered roller bearing, 4. differential left shell, 5. driven bevel gear, 6. differential right shell, 7. long planet gear shaft, 8. bolt, 9. planet gear gasket, 10. planet gear, 11. second tapered roller bearing, 12. first half shaft gear, 13. half shaft gear gasket, 14. second half shaft gear, 15. half shaft gear gasket, 16. lock pin hole
Detailed Description
The invention is further elucidated with reference to the drawing.
As shown in fig. 1, the utility model provides a differential assembly, a second tapered roller bearing 11 is sleeved on the shaft diameter of the outer end of the right differential shell 6, and the end surfaces are jointed; the half axle gear gasket 13 is attached to the plane of the right differential case 6, the first half axle gear 12 is arranged in a round hole in the right differential case 6 through the round hole of the half axle gear gasket 13, and the end surface is attached to the half axle gear gasket 13; the convex spherical surfaces of the four planetary gear gaskets 9 are attached to the concave spherical surface of the differential right shell 6, and the convex planes of the four planetary gears 10 are arranged on the concave spherical surface of the planetary gear gaskets 9; a locking pin hole 16 is formed in the wall of a hole for mounting the short planet gear shaft 2 in the right differential case 6, the locking pin hole 16 is positioned at the end part of the short planet gear shaft 2, and the long planet gear shaft 7 is arranged in a cross-shaped hole without the locking pin hole 16 of the right differential case 6; the short planet gear shaft 2 is arranged in a cross hole with a lock pin hole 16 of the right differential shell 6, and the end surface is inserted into the groove of the long planet gear shaft 7; the split pin 1 is inserted through the lock pin hole 16, the end surface of the short planet gear shaft 2 is lapped, one side of the split pin 1 is bent by 90 degrees, and the other side of the split pin is bent by 10 degrees; the right differential case 6 is arranged in a round hole of the driven bevel gear 5, and the end faces of the right differential case are attached; the second side gear 14 is engaged with the tooth surface of the planetary gear 10, and the side gear washer 13 is fitted into the shaft diameter of the planetary gear 10; the outer spigot of the differential left shell 4 is arranged in the inner spigot of the differential right shell 6, and the end faces are attached; the bolts 8 are screwed into the threaded holes of the driven bevel gear 5 and screwed tightly through flange distribution holes of the differential left shell 4 and the differential right shell 6; the first tapered roller bearing 3 is pressed into the shaft diameter of the differential left case 4.
As shown in fig. 2 and 3, the utility model provides a limiting structure for planetary gear shafts comprises a right differential casing 6, a split pin 1 and a short planetary gear shaft 2, wherein a locking pin hole 16 is arranged on the hole wall of the hole used for installing the short planetary gear shaft 2 in the right differential casing 6, the position of the locking pin hole 16 is the end part of the short planetary gear shaft 2, and a long planetary gear shaft 7 is arranged in a cross hole without the locking pin hole 16 in the right differential casing 6; the short planet gear shaft 2 is arranged in a cross hole with a lock pin hole 16 of the right differential shell 6, and the end surface is inserted into the groove of the long planet gear shaft 7; the cotter pin 1 is inserted through the lock pin hole 16, the end surface of the short planet gear shaft 2 is lapped, one side of the cotter pin 1 is bent by 90 degrees, and the other side is bent by 10 degrees. Two locking pin holes 16 on the right differential case 6 are arranged in parallel and are perpendicular to the short planet gear shaft 2.
The above detailed description is directed to a preferred embodiment of the present invention, which is not intended to limit the scope of the claims, but rather the present invention is intended to cover all modifications and variations within the scope of the claims, which fall within the spirit of the invention.
Claims (3)
1. The utility model provides a planet gear axle limit structure which characterized in that: the differential mechanism comprises a differential mechanism right shell (6), a split pin (1) and a short planet gear shaft (2), wherein a lock pin hole (16) is formed in the wall of a hole in the differential mechanism right shell (6) for mounting the short planet gear shaft (2), the lock pin hole (16) is positioned at the end part of the short planet gear shaft (2), and a long planet gear shaft (7) is arranged in a cross-shaped hole without the lock pin hole (16) of the differential mechanism right shell (6); the short planet gear shaft (2) is arranged in a cross hole with a lock pin hole (16) of the right differential shell (6), and the end surface is inserted into a groove of the long planet gear shaft (7); the split pin (1) is inserted through the lock pin hole (16) and is lapped with the end surface of the short planet gear shaft (2), one side of the split pin (1) is bent by 90 degrees, and the other side of the split pin is bent by 10 degrees.
2. The planet pin limit structure of claim 1, wherein: two locking pin holes (16) on the right differential shell (6) are arranged in parallel and are perpendicular to the short planet gear shaft (2).
3. A differential assembly to which the planetary gear shaft limit structure of claim 1 is applied, characterized in that: the second tapered roller bearing (11) is sleeved on the shaft diameter of the outer end of the right differential shell (6), and the end faces of the second tapered roller bearing are attached to each other; the half axle gear gasket (13) is attached to the plane of the right differential case (6), the first half axle gear (12) is arranged in a round hole in the right differential case (6) through the round hole of the half axle gear gasket (13), and the end surface of the first half axle gear is attached to the half axle gear gasket (13); convex spherical surfaces of the four planetary gear gaskets (9) are attached to a concave spherical surface of the right differential shell (6), and convex planes of the four planetary gears (10) are arranged on the concave spherical surface of the planetary gear gaskets (9); a locking pin hole (16) is formed in the hole wall of a hole used for installing the short planet gear shaft (2) in the right differential case (6), the position of the locking pin hole (16) is the end part of the short planet gear shaft (2), and the long planet gear shaft (7) is arranged in a cross hole without the locking pin hole (16) of the right differential case (6); the short planet gear shaft (2) is arranged in a cross hole with a lock pin hole (16) of the right differential shell (6), and the end surface is inserted into a groove of the long planet gear shaft (7); the split pin (1) is inserted through the lock pin hole (16), the end face of the short planet gear shaft (2) is lapped, one side of the split pin (1) is bent by 90 degrees, and the other side of the split pin (1) is bent by 10 degrees; the right differential shell (6) is arranged in a round hole of the driven bevel gear (5), and the end faces of the right differential shell are attached; the second side gear (14) is meshed with the tooth surface of the planetary gear (10), and a side gear gasket (13) is arranged in the shaft diameter of the planetary gear (10); an outer spigot of the differential left shell (4) is arranged in an inner spigot of the differential right shell (6), and the end faces are attached; the bolts (8) are screwed into the threaded holes of the driven bevel gear (5) and are screwed tightly through flange distribution holes of the differential left shell (4) and the differential right shell (6); the first tapered roller bearing (3) is pressed into the shaft diameter of the differential left shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768453.9U CN210889973U (en) | 2018-10-30 | 2018-10-30 | Planetary gear shaft limiting structure and differential mechanism assembly applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768453.9U CN210889973U (en) | 2018-10-30 | 2018-10-30 | Planetary gear shaft limiting structure and differential mechanism assembly applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889973U true CN210889973U (en) | 2020-06-30 |
Family
ID=71317609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821768453.9U Active CN210889973U (en) | 2018-10-30 | 2018-10-30 | Planetary gear shaft limiting structure and differential mechanism assembly applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889973U (en) |
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2018
- 2018-10-30 CN CN201821768453.9U patent/CN210889973U/en active Active
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