CN219692174U - Driven bevel gear arrangement structure of main speed reducer - Google Patents
Driven bevel gear arrangement structure of main speed reducer Download PDFInfo
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- CN219692174U CN219692174U CN202320974217.7U CN202320974217U CN219692174U CN 219692174 U CN219692174 U CN 219692174U CN 202320974217 U CN202320974217 U CN 202320974217U CN 219692174 U CN219692174 U CN 219692174U
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- bevel gear
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- driven bevel
- tooth
- differential
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 241000239290 Araneae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model relates to a driven bevel gear arrangement structure of a main speed reducer, which comprises the main speed reducer; the main speed reducer is internally provided with a differential mechanism assembly, a drive bevel gear, a driven bevel gear, a tooth surface difference shell and a tooth back difference shell; the driven bevel gear engagement surface is engaged with the drive bevel gear; the passive bevel gear mounting surface is sequentially connected with the tooth surface differential shell and the tooth back differential shell through bolts; the tooth surface differential shell is provided with a half shaft gear, a bolt connecting hole and a cross shaft mounting hole; the cross shaft mounting hole is provided with a cross shaft; half shafts are connected to two sides of the cross shaft; the bolts penetrate through the bolt connecting holes to connect the driven bevel gears, the tooth surface difference shell and the tooth back difference shell with the differential mechanism assembly; the side gear is meshed with a planetary gear provided on the cross shaft. The utility model has simple and compact structure, reduces weight and saves space; the main speed reducer is suitable for various speed ratio ranges, the speed ratio is changed, the tooth surface differential shell structure is unchanged, and the universality of various speed ratios is strong.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to a driven bevel gear arrangement structure of a main speed reducer.
Background
At present, a main speed reducer gear is used as a key part of an axle and consists of a group of bevel gear pairs, and the thicknesses of tooth blanks of driven bevel gears are different due to different speed ratios; at present, to the driven bevel gear of different speed ratios, firstly, use two sets of differential mechanism casings to distinguish the size speed ratio, set up different installation distance to reduce the thickness of driven bevel gear of big speed ratio, secondly, do not distinguish the difference shell, reduce the actual thickness of gear through the mode that increases the compensating ring, but above-mentioned two kinds of scheme parts are many, the structure is complicated, with high costs, weight is big and space occupation rate is big scheduling problem.
Disclosure of Invention
The utility model provides a driven bevel gear arrangement structure of a main speed reducer, which has a simple and compact structure, reduces weight and saves space; the main speed reducer is suitable for various speed ratio ranges, the speed ratio is changed, the tooth surface differential shell structure is unchanged, and the universality of various speed ratios is strong.
In order to solve the problems in the background art, the utility model is realized by the following technical scheme:
a driven bevel gear arrangement structure of a main speed reducer comprises the main speed reducer; a differential mechanism assembly, a drive bevel gear, a driven bevel gear, a tooth surface difference shell and a tooth back difference shell are arranged in the main speed reducer; the driven bevel gear engagement surface is engaged with the drive bevel gear; the driven bevel gear mounting surface is sequentially connected with the tooth surface differential shell and the tooth back differential shell through bolts; the tooth surface differential shell is provided with a half shaft gear, a bolt connecting hole and a cross shaft mounting hole; the cross shaft mounting hole is provided with a cross shaft; two sides of the cross shaft are connected with half shafts; the bolts penetrate through the bolt connecting holes to connect the driven bevel gears, the tooth surface difference shell and the tooth back difference shell with the differential mechanism assembly; the side gears are meshed with planetary gears arranged on the cross shafts.
Preferably, a half-shaft gear gasket is arranged at the joint of the half-shaft gear and the tooth back difference shell, and a planetary gear gasket is arranged at the joint of the planetary gear and the tooth surface difference shell.
Preferably, the passive bevel gear engagement surface is engaged with the drive bevel gear; the passive bevel gear mounting surface is of a planar structure or a groove structure; the driven bevel gear mounting surface is sequentially connected with the tooth surface differential shell and the tooth back differential shell through bolts;
the tooth surface difference shell is arranged in the groove, and the passive bevel gear mounting surface is sequentially connected with the tooth surface difference shell and the tooth back difference shell through bolts; the tooth surface difference shell is positioned between the driven bevel gear and the tooth back difference shell.
Preferably, the driven bevel gear and the tooth back difference shell can be integrally arranged; the driven bevel gear and the tooth back differential shell are integrally arranged and connected with the tooth surface differential shell through bolts and the differential mechanism assembly.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. the passive bevel gear and the tooth back difference shell are integrally arranged in the small speed ratio, so that the structure is simple and compact, the weight is reduced, the space is saved, and the cost is reduced;
2. the main speed reducer has wide applicable speed ratio range and strong universality;
3. when the speed ratio is changed, the tooth surface difference shell and tooth back difference shell structure only needs to adjust the processing procedure, so that the development of a new die is avoided, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present utility model;
FIG. 3 is a schematic structural diagram of embodiment 3 of the present utility model;
fig. 4 is an enlarged view of a portion of fig. 3 at A-A.
Description of the reference numerals
1. A drive bevel gear; 2. a passive bevel gear; 3. tooth surface difference shell; 4. a bolt; 5. a tooth back difference shell; 6. a side gear; 7. a cross shaft; 8. a main speed reducer; 9. a half shaft; 10. a planetary gear.
Detailed Description
Example 1
As shown in fig. 1, a final drive driven bevel gear arrangement comprises a final drive 8; a differential mechanism assembly, a drive bevel gear 1, a driven bevel gear 2, a tooth surface difference shell 3 and a tooth back difference shell 5 are arranged in the main speed reducer 8; the meshing surface of the driven bevel gear 2 is meshed with the drive bevel gear 1; the installation surface of the driven bevel gear 2 is sequentially connected with a tooth surface difference shell 3 and a tooth back difference shell 5, and is connected with a differential mechanism assembly through a bolt 4; the tooth surface differential shell 3 is provided with a half shaft gear 6, a bolt connecting hole and a cross shaft mounting hole; the cross shaft mounting hole is provided with a cross shaft 7; two sides of the cross shaft 7 are connected with half shafts 9; the bolt 4 passes through the bolt connecting hole to connect the driven bevel gear 2, the tooth surface difference shell 3 and the tooth back difference shell 5 with the differential mechanism assembly; the side gear 6 is meshed with a planetary gear 10 provided to the spider 7.
The connection part of the half-shaft gear 6 and the tooth back difference shell 5 is provided with a half-shaft gear gasket, and the connection part of the planetary gear 10 and the tooth surface difference shell 3 is provided with a planetary gear gasket.
The meshing surface of the driven bevel gear 2 is meshed with the drive bevel gear 1; the installation surface of the driven bevel gear 2 is in a plane structure or a groove structure; the installation surface of the driven bevel gear 2 is sequentially connected with a tooth surface difference shell 3 and a tooth back difference shell 5, and is connected with a differential mechanism assembly through a bolt 4;
the tooth surface difference shell 3 is arranged in the groove, and the installation surface of the driven bevel gear 2 is sequentially connected with the tooth surface difference shell 3 and the tooth back difference shell 5 through bolts 4; the tooth face difference housing 3 is located between the driven bevel gear 2 and the tooth back difference housing 5.
The working principle of the driven bevel gear arrangement structure of the main speed reducer is as follows: when the transmission speed ratio of the bevel gear pair is changed, the thickness of a tooth blank of the driven bevel gear is changed, and the pitch circle diameter of the drive bevel gear is changed, so that the installation distance between the drive bevel gear 1 and the driven bevel gear 2 is changed; the bevel gear pair transmission speed ratio comprises a large speed ratio, a medium speed ratio and a small speed ratio.
As shown in fig. 1, at large speed ratios: the transmission speed ratio of the bevel gear pair is larger than 3.4, the meshing surface of the bevel gear pair is close to the shaft diameter position of the drive bevel gear 1, and the meshing surface of the driven bevel gear 2 is meshed with the drive bevel gear 1; the installation surface of the driven bevel gear 2 is sequentially connected with a tooth surface difference shell 3 and a tooth back difference shell 5, and is connected with a differential mechanism assembly through a bolt 4; the tooth surface difference shell 3 is positioned between the driven bevel gear 2 and the tooth back difference shell 5, and the installation surface of the driven bevel gear 2 is in a plane structure.
Example 2
As shown in fig. 2, at medium speed ratio: the transmission speed ratio of the bevel gear pair is between 2.8 and 3.4; the passive bevel gear 2 is provided with a groove on the installation surface; the meshing surface of the driven bevel gear 2 is meshed with the drive bevel gear 1; the tooth surface difference shell 3 is arranged in the groove, and the installation surface of the driven bevel gear 2 is sequentially connected with the tooth surface difference shell 3 and the tooth back difference shell 5 through bolts 4; the tooth surface difference shell 3 is positioned between the driven bevel gear 2 and the tooth back difference shell 5, and the installation surface of the driven bevel gear 2 is in a groove structure.
Example 3
As shown in fig. 3-4, the small speed ratio is: the transmission speed ratio of the bevel gear pair is smaller than 2.8, the meshing surface of the bevel gear pair is close to the position of the shaft diameter of the cross shaft 7, the distance between the meshing surface of the bevel gear pair and the position of the shaft diameter of the drive bevel gear 1 is large, the driven bevel gear 2 and the tooth back differential shell 5 are integrally arranged, and the driven bevel gear 2 and the tooth back differential shell 3 are connected with the differential assembly through bolts 4.
When the transmission speed ratio of the bevel gear pair is respectively a large speed ratio, a medium speed ratio and a small speed ratio, the differential mechanism assembly uses the same set of tooth surface differential shell 3; when the transmission speed ratio of the bevel gear pair is respectively a large speed ratio and a medium speed ratio, the differential mechanism assembly uses the same set of tooth back differential shells 5.
Claims (4)
1. A final drive driven bevel gear arrangement, characterized by: comprising a final drive (8); a differential mechanism assembly, a drive bevel gear (1), a driven bevel gear (2), a tooth surface differential shell (3) and a tooth back differential shell (5) are arranged in the main speed reducer (8); the meshing surface of the driven bevel gear (2) is meshed with the drive bevel gear (1); the installation surface of the driven bevel gear (2) is sequentially connected with the tooth surface difference shell (3) and the tooth back difference shell (5) through bolts (4) and the differential mechanism assembly; the tooth surface differential shell (3) is provided with a half shaft gear (6), a bolt connecting hole and a cross shaft mounting hole; the cross shaft mounting hole is provided with a cross shaft (7); two sides of the cross shaft (7) are connected with half shafts (9); the bolts (4) penetrate through the bolt connecting holes to connect the driven bevel gear (2), the tooth surface differential shell (3) and the tooth back differential shell (5) with a differential mechanism assembly; the side gear (6) is meshed with a planetary gear (10) provided on the cross shaft (7).
2. The final drive driven bevel gear arrangement according to claim 1, wherein a side gear shim is provided at the junction of the side gear (6) and the tooth face differential shell (5), and a planetary gear shim is provided at the junction of the planetary gear (10) and the tooth face differential shell (3).
3. A final drive driven bevel gear arrangement according to claim 1, wherein the driven bevel gear (2) engagement surface is in engagement with the drive bevel gear (1); the installation surface of the driven bevel gear (2) is in a plane structure or a groove structure; the installation surface of the driven bevel gear (2) is sequentially connected with the tooth surface difference shell (3) and the tooth back difference shell (5) through bolts (4) and the differential mechanism assembly;
the tooth surface differential shell (3) is arranged in the groove, and the installation surface of the driven bevel gear (2) is sequentially connected with the tooth surface differential shell (3) and the tooth back differential shell (5) through bolts (4); the tooth surface difference shell (3) is positioned between the driven bevel gear (2) and the tooth back difference shell (5).
4. The final drive driven bevel gear arrangement according to claim 1, wherein the driven bevel gear (2) and the differential tooth casing (5) are also integrally provided; the driven bevel gear (2) and the tooth back difference shell (5) are integrally arranged, and are connected with the tooth surface difference shell (3) through bolts (4) and the differential mechanism assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974217.7U CN219692174U (en) | 2023-04-26 | 2023-04-26 | Driven bevel gear arrangement structure of main speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974217.7U CN219692174U (en) | 2023-04-26 | 2023-04-26 | Driven bevel gear arrangement structure of main speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692174U true CN219692174U (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974217.7U Active CN219692174U (en) | 2023-04-26 | 2023-04-26 | Driven bevel gear arrangement structure of main speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692174U (en) |
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2023
- 2023-04-26 CN CN202320974217.7U patent/CN219692174U/en active Active
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