CN210290643U - Novel differential mechanism connecting structure - Google Patents
Novel differential mechanism connecting structure Download PDFInfo
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- CN210290643U CN210290643U CN201920949624.6U CN201920949624U CN210290643U CN 210290643 U CN210290643 U CN 210290643U CN 201920949624 U CN201920949624 U CN 201920949624U CN 210290643 U CN210290643 U CN 210290643U
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- bevel gear
- driven bevel
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Abstract
The utility model discloses a novel differential mechanism connecting structure, the tooth surface of a driven bevel gear is arranged on a workbench downwards, the shaft diameter of a right differential mechanism shell is matched with the center hole of the driven bevel gear and the end surface is attached, and the distribution holes of the right differential mechanism shell are aligned with the distribution threaded holes of the driven bevel gear; the concave spigot of the left differential case is matched with the convex spigot of the right differential case, and the end faces of the concave spigot and the convex spigot are attached, and the distribution holes of the left differential case are aligned with the distribution holes of the right differential case; a plurality of long bolts pass through the left shell of the differential mechanism and the threaded holes of the right shell of the differential mechanism and are screwed in the threaded holes of the driven bevel gear, a plurality of short bolts pass through the threaded holes of the right shell of the differential mechanism and are screwed in the threaded holes of the driven bevel gear, and the long bolts and the short bolts are distributed at intervals along the circumference. The left shell of the differential mechanism adopts an eight-petal structure, so that half of bolt holes are reduced, and the weight is reduced; the bolts are shortened by the eight long bolts, so that the weight and the cost of the bolts are reduced, and the bolt hole processing cost of the differential left shell is reduced.
Description
Technical Field
The utility model belongs to car drive axle field, concretely relates to novel differential mechanism structure.
Background
In the domestic automobile driving axle, a mainstream differential mechanism structure adopts a planetary gear shaft to be arranged in a right differential mechanism shell, and a torque transmission route is a driven bevel gear → the right differential mechanism shell → the planetary gear shaft → a planetary gear → a half axle. The required connecting torque between the differential left shell and the differential right shell is smaller, but a screw connection structure with multiple bolts and a long force arm is adopted between the differential left shell and the differential right shell, and the structure generates a large amount of design redundancy and increases the weight and the material cost.
Disclosure of Invention
The utility model discloses an among the solution automobile drive axle, because the structural strength of differential mechanism left side shell is surplus, lead to differential mechanism left side shell weight to increase, differential mechanism left side shell material cost increases, connecting bolt cost increases the scheduling problem. A novel differential connecting structure is provided, and weight and cost are reduced.
The utility model discloses an adopt following technical scheme to realize:
a novel differential connecting structure comprises a driven bevel gear, a right differential shell, a left differential shell, a long bolt and a short bolt, wherein the tooth surface of the driven bevel gear is downwards arranged on a workbench, the shaft diameter of the right differential shell is matched with the central hole of the driven bevel gear, the end surface of the right differential shell is attached to the central hole of the driven bevel gear, and distribution holes of the right differential shell are aligned with distribution threaded holes of the driven bevel gear; the concave spigot of the left differential case is matched with the convex spigot of the right differential case, and the end faces of the concave spigot and the convex spigot are attached, and the distribution holes of the left differential case are aligned with the distribution holes of the right differential case; a plurality of long bolts pass through the left shell of the differential mechanism and the threaded holes of the right shell of the differential mechanism and are screwed in the threaded holes of the driven bevel gear, a plurality of short bolts pass through the threaded holes of the right shell of the differential mechanism and are screwed in the threaded holes of the driven bevel gear, and the long bolts and the short bolts are distributed at intervals along the circumference.
The further technical scheme is as follows:
the differential left shell adopts an eight-petal outer contour structure, and each lobe of the eight-petal outer contour structure is provided with a threaded hole for connecting a long bolt; the concave lobes of the eight-lobe outer contour structure are used for reducing weight and providing arrangement space for the short bolts; the differential left shell is matched with an outer spigot of the differential right shell through an inner spigot structure.
The right differential shell adopts a flange structure with two planar surfaces, and the two flanges are respectively matched with the driven bevel gear and the end surface of the left differential shell; bolt holes are uniformly distributed on the flange plate; the right differential shell is matched with a central hole of the driven bevel gear through the shaft diameter.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a novel differential connecting structure, the left shell of the differential is in an eight-petal structure, half of bolt holes are reduced, and the weight is reduced; by reducing eight bolts penetrating through the left differential case, the eight long bolts are shortened, the weight and the cost of the bolts are reduced, and the bolt hole processing cost of the left differential case is reduced.
Drawings
The invention will be further described with reference to the accompanying drawings:
fig. 1 is a view of a differential assembly, which is an application part of a novel differential connection structure according to the present invention;
fig. 2a is a front view of the left casing of the differential of the present invention;
fig. 2b is a cross-sectional view of the left differential case of the present invention;
FIG. 3a is a front view of the right differential case of the present invention;
FIG. 3b is a cross-sectional view of the right differential case of the present invention;
in the figure: 1. driven bevel gear, 2 differential right shell, 3 differential left shell, 4 long bolt, 5 short bolt
Detailed Description
The invention is further elucidated with reference to the drawing.
As shown in fig. 1, a novel differential connecting structure comprises a driven bevel gear 1, a differential right shell 2, a differential left shell 3, long bolts 4 and short bolts 5, wherein the tooth surface of the driven bevel gear 1 is arranged on a workbench downwards, the shaft diameter of the differential right shell 2 is matched with the central hole of the driven bevel gear 1, the end surfaces of the driven bevel gear 1 and the differential right shell are attached, and 16 distribution holes of the differential right shell 2 are aligned with 16 distribution threaded holes of the driven bevel gear 1; the concave spigot of the differential left shell 3 is matched with the convex spigot of the differential right shell 2, the end faces are attached, and 8 distribution holes of the differential left shell 3 are aligned with 8 distribution holes (8 uniformly distributed in 16 holes) of the differential right shell; 8 long bolts 4 penetrate through bolt holes of the left differential case 3 and the right differential case 2 and are screwed into threaded holes of the driven bevel gear 1 and are screwed tightly; 8 short bolts 5 penetrate through bolt holes of the right differential case 2 and are screwed into threaded holes of the driven bevel gear 1 and are tightened; the long bolts 4 and the short bolts 5 are distributed at intervals along the circumference.
As shown in fig. 2a and 2b, the differential left shell adopts an eight-lobe outer contour structure, and each lobe is provided with a threaded hole for connecting a long bolt 4; the 8 concave lobes are used for reducing weight and providing arrangement space for the short bolts 5; an inner spigot structure is adopted to be matched with an outer spigot of the differential right shell.
As shown in fig. 3a and 3b, the differential right housing adopts a flange structure with two planar surfaces, and is respectively matched with the driven bevel gear 1 and the differential left housing 3; on the flange plate, 16 uniformly distributed bolt holes are adopted and distributed on the long bolts 4 and the short bolts 5 to be matched; a shaft diameter structure is adopted to be matched with a central hole of the driven bevel gear 1; an outer spigot structure is adopted to be matched with an inner spigot of a left shell of the differential mechanism.
Claims (3)
1. A novel differential connecting structure is characterized by comprising a driven bevel gear, a right differential shell, a left differential shell, a long bolt and a short bolt, wherein the tooth surface of the driven bevel gear is downwards arranged on a workbench, the shaft diameter of the right differential shell is matched with the central hole of the driven bevel gear and the end surface of the right differential shell is attached to the central hole of the driven bevel gear, and distribution holes of the right differential shell are aligned with distribution threaded holes of the driven bevel gear; the concave spigot of the left differential case is matched with the convex spigot of the right differential case, and the end faces of the concave spigot and the convex spigot are attached, and the distribution holes of the left differential case are aligned with the distribution holes of the right differential case; a plurality of long bolts pass through the left shell of the differential mechanism and the threaded holes of the right shell of the differential mechanism and are screwed in the threaded holes of the driven bevel gear, a plurality of short bolts pass through the threaded holes of the right shell of the differential mechanism and are screwed in the threaded holes of the driven bevel gear, and the long bolts and the short bolts are distributed at intervals along the circumference.
2. The novel differential connecting structure as claimed in claim 1, wherein the differential left shell adopts an eight-petal outer contour structure, and each lobe of the eight-petal outer contour structure is provided with a threaded hole for connecting a long bolt; the concave lobes of the eight-lobe outer contour structure provide arrangement space for the short bolts; the differential left shell is matched with an outer spigot of the differential right shell through an inner spigot structure.
3. The novel differential connecting structure as claimed in claim 1, wherein the differential right housing adopts a flange structure with two planar surfaces, and the two flanges are respectively matched with the driven bevel gear and the end surface of the differential left housing; bolt holes are uniformly distributed on the flange plate; the right differential shell is matched with a central hole of the driven bevel gear through the shaft diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949624.6U CN210290643U (en) | 2019-06-24 | 2019-06-24 | Novel differential mechanism connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949624.6U CN210290643U (en) | 2019-06-24 | 2019-06-24 | Novel differential mechanism connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290643U true CN210290643U (en) | 2020-04-10 |
Family
ID=70098768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920949624.6U Active CN210290643U (en) | 2019-06-24 | 2019-06-24 | Novel differential mechanism connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290643U (en) |
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2019
- 2019-06-24 CN CN201920949624.6U patent/CN210290643U/en active Active
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