CN218625306U - Reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle - Google Patents
Reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle Download PDFInfo
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- CN218625306U CN218625306U CN202223015214.5U CN202223015214U CN218625306U CN 218625306 U CN218625306 U CN 218625306U CN 202223015214 U CN202223015214 U CN 202223015214U CN 218625306 U CN218625306 U CN 218625306U
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Abstract
The utility model provides a reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle, this reduction case subassembly are applied to and electrically drive the bridge, including box and integral type tile lid, integral type tile lid is including the tile lid body, the tile lid body includes two bearing installation departments and connects the intermediate part of two bearing installation departments, two the bearing installation department respectively with the box is connected. The utility model discloses a reduction case subassembly has solved the not enough problem of current split type differential mechanism tile lid rigidity through setting up the integral type tile lid.
Description
Technical Field
The utility model relates to a transaxle technical field especially relates to a reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle.
Background
At present, transaxle differential mechanism tile lid is split type structure, belong to reduction case body assembly's partly, the case body assembly is including controlling two tile lids among the prior art, respectively with the differential mechanism about bearing cooperation installation, and respectively with 2 bolt fixed connection, control two tile lids and axle housing do not have the cooperation relation, the two mutual independence, it is big to make differential mechanism bearing tile lid department warp, rigidity is not enough, lead to gear and bearing drive unstable, can reduce the life-span of gear and bearing, tile lid rigidity weak influence transmission system's NVH performance, lead to the big problem of transmission noise.
SUMMERY OF THE UTILITY MODEL
To the not enough problem of current split type differential mechanism tile lid rigidity, the utility model provides a reduction gear box body subassembly, reduction gear assembly, electricity drive bridge and vehicle.
The utility model provides a reduction case body subassembly is applied to and drives the bridge electrically, including box and integral type tile lid, integral type tile lid is including the tile lid body, the tile lid body includes two bearing installation departments and connects the intermediate part of two bearing installation departments, two the bearing installation department respectively with the box is connected.
Optionally, each bearing installation portion is provided with the first arc recess that is used for the location bearing towards one side of box.
Optionally, one side of the box body facing the tile cover body is provided with a second arc-shaped groove for positioning a bearing, and the second arc-shaped groove and the first arc-shaped groove are oppositely arranged to form a mounting hole for mounting the bearing.
Optionally, each bearing installation department orientation one side of box is provided with two respectively and connects the face, one two of bearing installation department be provided with the locating pin on connecting the face, be provided with on the box with locating pin matched with locating hole.
Optionally, a bolt connecting hole is formed in the bearing mounting portion, and the bearing mounting portion penetrates through the bolt connecting hole through a bolt.
Optionally, a limiting part is arranged on one side of each bearing mounting part, and the limiting part is used for abutting against an axle housing of the electric drive axle; the limiting part comprises a stop surface and a supporting surface, and the stop surface is positioned on one side of the bearing mounting part, which is far away from the box body; the holding surface with the backstop face is connected, the holding surface is the plane, and is located the bearing installation department orientation one side of axle housing.
Optionally, the middle part is of a concave structure and comprises a connecting section and two inclined sections, two inclined sections are connected to two ends of the connecting section respectively, the distance between the two inclined sections is gradually increased along the direction away from the connecting section, and one end of the inclined section away from the connecting section is connected with the bearing installation part.
On the other hand, the utility model also provides a reduction gear assembly, include as above arbitrary any reduction gear box body subassembly.
On the other hand, the utility model also provides an electricity drive bridge, include as above the reduction gear assembly.
On the other hand, the utility model also provides an electricity drive bridge, include as above electricity drive bridge.
The utility model discloses in, because two differential mechanism bearing intervals are far away, are connected with the box through integral type tile lid, have reduced the stress and the meeting an emergency of box and bearing installation department, have increased the rigidity of box subassembly, are favorable to the even running of the transmission system of reduction gear assembly, have promoted whole electric drive axle assembly mode. The integrated bush cover is respectively matched and installed with the two bearings of the differential mechanism through the bearing installation part, and support and positioning are provided for the two bearings of the differential mechanism.
Drawings
Fig. 1 is a schematic structural diagram of a reduction gear box assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an integrated tile cover of a reduction gear box assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another angle of the integrated tile cover of the reduction gear box assembly according to an embodiment of the present invention.
The reference numbers in the drawings attached hereto are as follows:
1. a box body;
2. an integral tile cover; 21. a tile cover body; 211. an inclined section; 212. a connecting section; 22. a bearing mounting portion; 221. a first arc-shaped groove; 222. a connecting surface; 223. connecting holes of bolts; 23. a limiting part; 231. a stop surface; 232. a support surface;
3. a differential bearing; 4. positioning holes; 5. reduction gear main shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
As shown in fig. 1-3, the utility model discloses a reduction gear box body assembly of an embodiment is applied to the electric bridge that drives, including box 1 and integral type tile lid 2, integral type tile lid 2 includes tile lid body 21, tile lid body 21 includes two bearing installation portion 22 and the intermediate part of connecting two bearing installation portion 22, two bearing installation portion 22 respectively with box 1 connects. Specifically, the bearing mounting portion 22 is connected to the case 1 by a set bolt.
Specifically, the reducer assembly is composed of a pinion shaft assembly, a differential assembly and a case assembly.
The utility model discloses reduction case subassembly is because two differential mechanism bearings 3 intervals are far away, is connected with box 1 through integral type tile lid 2, has reduced box 1 and bearing installation department 22's stress and meet an emergency, has increased the rigidity of box subassembly, is favorable to reduction gear assembly's transmission system's even running, has promoted whole electric drive axle assembly mode. The integrated tile cover 2 is respectively matched and installed with the two differential bearings 3 through the bearing installation parts 22, and provides supporting and positioning for the differential bearings 3.
As shown in fig. 1 and 3, in some embodiments of the present invention, each of the bearing mounting portions 22 is provided with a first arc-shaped groove 221 for positioning the differential bearing 3 toward one side of the case 1, for cooperating with the differential bearing 3.
As shown in fig. 1, in some embodiments of the present invention, a second arc-shaped groove for positioning the differential bearing 3 is provided on one side of the tile cover body 21 facing the box body 1, and the second arc-shaped groove and the first arc-shaped groove 221 are oppositely disposed to form a mounting hole for mounting the differential bearing 3.
As shown in fig. 3, in some embodiments of the present invention, each bearing installation portion 22 faces one side of the box body 1 is provided with two connection surfaces 222, one respectively two of the bearing installation portions 22 are provided with a positioning pin on the connection surface 222, the box body 1 is provided with a positioning hole matched with the positioning pin. The positioning pin and the box body 1 are arranged for positioning, processing and assembling. Or, the case 1 is provided with a positioning pin, and the connecting surface 222 is provided with a positioning hole 4 matched with the positioning pin.
As shown in fig. 3, in some embodiments of the present invention, the bearing mounting portion 22 is provided with a bolt connecting hole 223, and the bearing mounting portion 22 passes through the bolt connecting hole 223 by setting a bolt to connect with the box body 1.
As shown in fig. 1 and 2, in some embodiments of the present invention, each of the bearing mounting portions 22 is provided with a limiting portion 23 on one side, and the limiting portion 23 is used for abutting against an axle housing of an electric drive axle. The limit part 23 comprises a stop surface 231 and a support surface 232, and the stop surface 231 is positioned on one side of the bearing mounting part 22, which faces away from the box body 1; the holding surface 232 with the backstop face 231 is connected, the holding surface 232 is the plane, and is located the bearing installation portion 22 orientation one side of axle housing. The overall rigidity of the junction of the box body assembly and the axle housing is enhanced through the limiting portion 23, meanwhile, the supporting rigidity of the differential bearing 3 is also enhanced, the deformation of the junction of the box body 1 and the bearing mounting portion 22 is reduced, gear transmission is facilitated, the service life of the differential bearing 3 is prolonged, and improvement of NVH performance of a drive axle is facilitated.
As shown in fig. 1-3, in some embodiments of the present invention, the middle portion is a concave structure, and includes a connection section 212 and two inclined sections 211, two inclined sections 211 are respectively connected to two ends of the connection section 212, a distance between the two inclined sections 211 gradually increases along a direction away from the connection section 212, and one end of the inclined section 211 away from the connection section 212 is connected to the bearing installation portion 22. By arranging the tile cover body 21 into a concave structure, the rigidity of the tile cover body 21 is enhanced, and meanwhile, the occupied space is reduced.
On the other hand, the utility model discloses an embodiment still provides a reduction gear assembly, includes as above any one embodiment reduction gear box body group spare.
On the other hand, the utility model discloses an embodiment still provides an electric bridge, includes as above embodiment the reduction gear assembly. The power transmission mode of the electric drive bridge is that the motor converts electric energy into kinetic energy, the kinetic energy is output to the speed reducer spindle 5 through the motor rotating shaft, the speed reducer spindle 5 is directly connected with the motor rotating shaft, the kinetic energy is transmitted to the speed reducer spindle 5, the power is transmitted to the differential mechanism assembly from the speed reducer spindle 5 through the gear assembly, the box body assembly provides support for transmission parts, the differential mechanism assembly transmits the power to the wheel end, and the vehicle is driven to run through tires.
On the other hand, the utility model discloses an embodiment still provides a vehicle, includes the electric drive axle as above embodiment.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. Such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a reduction case subassembly, is applied to and drives the bridge electrically, its characterized in that, includes box and integral type tile lid, integral type tile lid is including the tile lid body, the tile lid body includes two bearing installation departments and connects the intermediate part of two bearing installation departments, two the bearing installation department respectively with the box is connected.
2. The speed reducer case assembly according to claim 1, wherein each of the bearing mounting portions is provided with a first arc-shaped groove for positioning a bearing on a side thereof facing the case.
3. The speed reducer case assembly according to claim 2, wherein a side of the case facing the tile cover body is provided with a second arc-shaped groove for positioning a bearing, and the second arc-shaped groove is arranged opposite to the first arc-shaped groove to form a mounting hole for mounting the bearing.
4. The reducer case assembly according to claim 1, wherein each of the bearing mounting portions has two connecting surfaces on a side thereof facing the case, a positioning pin is disposed on each of the two connecting surfaces of one of the bearing mounting portions, and a positioning hole is disposed in the case to be engaged with the positioning pin.
5. The speed reducer case assembly according to claim 1, wherein the bearing mounting portion is provided with a bolt coupling hole, and the bearing mounting portion is coupled to the case by providing a bolt through the bolt coupling hole.
6. The reducer case assembly according to claim 1, wherein each of the bearing mounting portions is provided at one side thereof with a stopper portion for abutting against an axle housing of an electric drive axle; the limiting part comprises a stop surface and a supporting surface, and the stop surface is positioned on one side of the bearing mounting part, which is far away from the box body; the holding surface with the backstop face is connected, the holding surface is the plane, and is located the bearing installation department orientation one side of axle housing.
7. The reduction gear box assembly according to claim 1, wherein the middle portion is of a concave structure and comprises a connecting section and two inclined sections, two ends of the connecting section are respectively connected with the two inclined sections, the distance between the two inclined sections is gradually increased along the direction far away from the connecting section, and one end of the inclined section far away from the connecting section is connected with the bearing mounting portion.
8. A retarder assembly comprising a retarder housing assembly according to any of claims 1 to 7.
9. An electric drive axle comprising the speed reducer assembly of claim 8.
10. A vehicle comprising an electric drive axle according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223015214.5U CN218625306U (en) | 2022-11-11 | 2022-11-11 | Reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223015214.5U CN218625306U (en) | 2022-11-11 | 2022-11-11 | Reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218625306U true CN218625306U (en) | 2023-03-14 |
Family
ID=85446674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223015214.5U Active CN218625306U (en) | 2022-11-11 | 2022-11-11 | Reduction case subassembly, reduction gear assembly, electricity drive bridge and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625306U (en) |
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2022
- 2022-11-11 CN CN202223015214.5U patent/CN218625306U/en active Active
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