CN210218621U - Electric drive axle single reduction transmission - Google Patents
Electric drive axle single reduction transmission Download PDFInfo
- Publication number
- CN210218621U CN210218621U CN201822033416.XU CN201822033416U CN210218621U CN 210218621 U CN210218621 U CN 210218621U CN 201822033416 U CN201822033416 U CN 201822033416U CN 210218621 U CN210218621 U CN 210218621U
- Authority
- CN
- China
- Prior art keywords
- input shaft
- gear
- bearing
- differential mechanism
- jackshaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model provides an electricity drive axle singly subtract derailleur, its integration has differential mechanism, and its integrated differential mechanism is direct with the axle, make to arrange simply, and make power transmission circuit short, and transmission efficiency is high. It includes the gearbox body, the gearbox body includes preceding shell, hou gai, form the equipment cavity after preceding shell, the concatenation of hou gai, the lower part intermediate position of preceding shell is provided with the transmission and dodges the hole, input shaft, jackshaft have been arranged in the equipment cavity, the jackshaft is located the lower part parallel arrangement of input shaft, the front end evagination of input shaft in behind the preceding shell, connect driving motor, the position of input shaft the input shaft gear has been arranged to the part of equipment cavity, overlap respectively on the jackshaft and be equipped with jackshaft gear, well master gear, the meshing of jackshaft gear is connected the input shaft gear, differential mechanism has been arranged to the lower part of gearbox body, two output shafts of differential mechanism are on a parallel with the jackshaft is arranged.
Description
Technical Field
The utility model relates to a technical field of transmission derailleur specifically is the single derailleur that subtracts of electricity bridge that drives.
Background
In the face of global energy crisis and environmental problems, the automobile industry is undoubtedly a big household of energy consumption and air pollution, under the international environment of energy conservation and emission reduction and under the strong support of governments on new energy services, the demand of pure electric automobiles rises year by year, a power assembly (electric drive bridge) of a motor, a gearbox and a rear axle gradually becomes the direction of cooperative development of automobile enterprises, and a transmission is an intermediate link of the power assembly and plays a particularly key role in a transmission system.
The existing electric drive bridge single reduction transmission is complex in structure, difficult to arrange, long in transmission line and low in transmission efficiency.
Disclosure of Invention
To the above problem, the utility model provides an electricity drive axle singly subtracts derailleur, its integration has differential mechanism, and its integrated differential mechanism is direct with the axle, make to arrange simply, and make the power transmission circuit short, and the transmission efficiency is high.
The electric drive axle singly reduces derailleur, its characterized in that: which comprises a gearbox body, wherein the gearbox body comprises a front shell and a rear cover, the front shell and the rear cover are spliced to form an assembly cavity, a transmission avoidance hole is arranged at the middle position of the lower part of the front shell, an input shaft and a middle shaft are arranged in the assembly cavity, the middle shaft is arranged in parallel at the lower part of the input shaft, the front end of the input shaft protrudes out of the front shell and is connected with a driving motor, the part of the input shaft positioned in the assembly cavity is provided with an input shaft gear, the intermediate shaft is sleeved with an intermediate shaft gear and an intermediate main gear respectively, the intermediate shaft gear is meshed and connected with the input shaft gear, the lower part of the gearbox body is provided with a differential mechanism, two output shafts of the differential are arranged in parallel with the intermediate shaft, upper teeth of a main reduction gear of the differential are in meshed connection with lower teeth of the middle main gear, the meshing part of the main reducing gear and the middle main gear is positioned in the corresponding area of the transmission avoiding hole.
It is further characterized in that:
the input shaft gear is integrated with the input shaft, so that the transmission is stable and reliable;
the middle main gear is integrated with the intermediate shaft, so that the transmission is stable and reliable;
the intermediate shaft gear is fixedly sleeved on the intermediate shaft through a key structure;
a first conical roller bearing is sleeved on a first output shaft of the differential mechanism, a first differential mechanism bearing cover is fixedly arranged on the front lower end face of the front shell, the first differential mechanism bearing cover and the front shell are combined to form a first positioning mounting hole, the first conical roller bearing is positioned and supported in the first positioning mounting hole, a second conical roller bearing is sleeved on a second output shaft of the differential mechanism, a second differential mechanism bearing cover is fixedly arranged on the rear lower end face of the front shell, the second differential mechanism bearing cover and the front shell are combined to form a second positioning mounting hole, and the second conical roller bearing is positioned and supported in the second positioning mounting hole, so that the whole transmission is convenient and rapid to assemble, and a half shaft and an output shaft of an automobile are convenient to arrange and mount; the supporting bearing of the differential adopts a cone bearing design, the bearing capacity of the bearing is greatly improved under the same diameter, the clearance of the cone bearing is accurately adjusted to about 0.05mm at normal temperature, and the design life of the bearing is ensured;
adjusting nuts are annularly distributed in the area, corresponding to the front end face of the first tapered roller bearing, of the front end face of the first differential bearing cover, the inner ends of the adjusting nuts are tightly attached to the front end face of the outer ring of the first tapered roller bearing, so that the adjusting nuts axially fix the first tapered roller bearing, and the mounting of the whole differential is stable and reliable;
a first deep groove ball bearing, a first snap ring and an oil seal are sequentially sleeved at the front end of the input shaft corresponding to the mounting position of the front shell, a second deep groove ball bearing is sleeved at the rear end of the input shaft and then is positioned and mounted in a deep groove ball bearing hole of the rear cover, and the second deep groove ball bearing is axially fixed by the second snap ring;
the front end of the intermediate shaft is sleeved with a cylindrical roller bearing and then is supported and positioned in an intermediate shaft mounting ring groove of the front shell, and the rear end of the intermediate shaft is positioned and mounted in an intermediate shaft positioning mounting hole of the rear cover through a third deep groove ball bearing;
all gears adopt thin and high teeth, so that the contact ratio of gear pairs is increased and averaged, the strength of the gears is improved, and the meshing noise is reduced.
After the utility model is adopted, the differential mechanism is integrated at the lower part of the gearbox body, the integrated differential mechanism and the axle are direct, the arrangement is simple, the power transmission line is short, and the transmission efficiency is high; the gears are designed to be thin and high, the contact ratio of the gear pair is increased and averaged, macroscopic and microscopic parameters of the gears are optimized, the strength of the gears is greatly improved, and the meshing noise is reduced; the differential supporting bearing adopts a conical bearing design, the bearing capacity of the bearing is greatly improved under the same diameter, the clearance of the conical bearing is accurately adjusted to about 0.05mm at normal temperature, and the design life of the bearing is ensured; the shell cover piece is designed in an all-aluminum alloy finite element topology optimization mode, and fatigue checking is carried out through a load spectrum of 50 kilometres; the weight of a transmission assembly is greatly reduced, and the torque mass ratio is increased to reach 4.9; the cleanliness of the assembly is limited to 290mg, the backup coefficient of the static torsional strength of the assembly is not less than 3.0, and the average transmission efficiency of the assembly is not less than 96.5%.
Drawings
FIG. 1 is a schematic sectional view of the front view of the present invention;
FIG. 2 is a schematic right side view of the structure of FIG. 1;
the names corresponding to the sequence numbers in the figure are as follows:
the device comprises a front shell 1, a rear cover 2, an assembling cavity 3, a transmission avoiding hole 4, an input shaft 5, an intermediate shaft 6, an input shaft gear 7, an intermediate shaft gear 8, a middle main gear 9, a differential 10, a main reduction gear 11, a key structure 12, a first output shaft 13, a first tapered roller bearing 14, a first differential bearing cover 15, a first positioning mounting hole 16, a second output shaft 17, a second tapered roller bearing 18, a second differential bearing cover 19, a second positioning mounting hole 20, an adjusting nut 21, a first deep groove ball bearing 22, a first snap ring 23, an oil seal 24, a second deep groove ball bearing 25, a deep groove hole 26, a second snap ring 27, a cylindrical roller bearing 28, an intermediate shaft mounting ring groove 29, a third deep groove ball bearing 30 and an intermediate shaft positioning mounting hole 31.
Detailed Description
The electrically-driven bridge single reduction transmission is shown in figures 1 and 2: which comprises a gearbox body, the gearbox body comprises a front shell 1 and a rear cover 2, the front shell 1 and the rear cover 2 are spliced to form an assembly cavity 3, a transmission avoidance hole 4 is arranged in the middle of the lower part of the front shell 1, an input shaft 5 is arranged in the assembly cavity 3, an intermediate shaft 6, the intermediate shaft 6 is located the lower part parallel arrangement of input shaft 5, 5 front ends of input shaft are evaginated behind the preceding shell, connect driving motor, input shaft gear 7 has been arranged to the part that is located equipment cavity 3 of input shaft 5, the cover is equipped with intermediate shaft gear 8 respectively on the intermediate shaft 6, well master gear 9, input shaft gear 7 is connected in the meshing of intermediate shaft gear 8, differential mechanism 10 has been arranged to the lower part of gearbox casing, two output shafts of differential mechanism 10 are arranged in parallel with intermediate shaft 6, the lower part tooth of master gear 9 in the meshing connection of the upper portion tooth of the main reducing gear 11 of differential mechanism 10, the meshing part of main reducing gear 11 and well master gear 9 is located the transmission and dodges the corresponding region of hole 4.
The input shaft gear 7 is integrated with the input shaft 5, so that the transmission is stable and reliable; the middle main gear 9 is integrated on the intermediate shaft 6, so that the transmission is stable and reliable; the intermediate shaft gear 8 is fixedly sleeved on the intermediate shaft 6 through a key structure 12;
a first tapered roller bearing 14 is sleeved on a first output shaft 13 of the differential 10, a first differential bearing cover 15 is fixedly arranged on the front lower end face of the front shell 1, the first differential bearing cover 15 and the front shell 1 are combined to form a first positioning mounting hole 16, the first tapered roller bearing 14 is positioned and supported in the first positioning mounting hole 16, a second tapered roller bearing 18 is sleeved on a second output shaft 17 of the differential 10, a second differential bearing cover 19 is fixedly arranged on the rear lower end face of the front shell 1, the second differential bearing cover 19 and the front shell 1 are combined to form a second positioning mounting hole 20, and the second tapered roller bearing 18 is positioned and supported in the second positioning mounting hole 20, so that the whole transmission 10 is convenient and rapid to assemble, and a half shaft and an output shaft of an automobile are convenient to arrange and mount; the supporting bearing of the differential 10 is designed by adopting a conical bearing, the bearing capacity of the bearing is greatly improved under the same diameter, the clearance of the conical bearing is accurately adjusted to about 0.05mm at normal temperature, and the design life of the bearing is ensured;
the front end face of the first differential bearing cover 15 is annularly provided with adjusting nuts 21 in the area corresponding to the front end face of the first tapered roller bearing 14, the inner ends of the adjusting nuts 21 are tightly attached to the front end face of the outer ring of the first tapered roller bearing 14, so that the adjusting nuts 20 axially fix the first tapered roller bearing, and the installation of the whole differential is stable and reliable;
the front end of the input shaft 5 is sleeved with a first deep groove ball bearing 22, a first snap ring 23 and an oil seal 24 in sequence corresponding to the mounting position of the front shell, the rear end of the input shaft 5 is sleeved with a second deep groove ball bearing 25 and then is positioned and mounted in a deep groove ball bearing hole 26 of the rear cover 2, and the second snap ring 27 axially fixes the second deep groove ball bearing 25;
the front end of the intermediate shaft 6 is sleeved with a cylindrical roller bearing 28 and then is supported and positioned in an intermediate shaft mounting ring groove 29 of the front shell 1, and the rear end of the intermediate shaft 6 is positioned and mounted in an intermediate shaft positioning mounting hole 31 of the rear cover 2 through a third deep groove ball bearing 30;
all gears adopt thin and high teeth, so that the contact ratio of gear pairs is increased and averaged, the strength of the gears is improved, and the meshing noise is reduced.
The differential is integrated at the lower part of the gearbox body, and the integrated differential is direct to the axle, so that the arrangement is simple, the power transmission line is short, and the transmission efficiency is high; the gears are designed to be thin and high, the contact ratio of the gear pair is increased and averaged, macroscopic and microscopic parameters of the gears are optimized, the strength of the gears is greatly improved, and the meshing noise is reduced; the differential supporting bearing adopts a conical bearing design, the bearing capacity of the bearing is greatly improved under the same diameter, the clearance of the conical bearing is accurately adjusted to about 0.05mm at normal temperature, and the design life of the bearing is ensured; the shell cover piece is designed in an all-aluminum alloy finite element topology optimization mode, and fatigue checking is carried out through a load spectrum of 50 kilometres; the weight of a transmission assembly is greatly reduced, and the torque mass ratio is increased to reach 4.9; the cleanliness of the assembly is limited to 290mg, the backup coefficient of the static torsional strength of the assembly is not less than 3.0, and the average transmission efficiency of the assembly is not less than 96.5%.
The detailed description of the embodiments of the present invention has been provided, but the present invention is only the preferred embodiments of the present invention, and should not be considered as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent application.
Claims (9)
1. The electric drive axle singly reduces derailleur, its characterized in that: which comprises a gearbox body, wherein the gearbox body comprises a front shell and a rear cover, the front shell and the rear cover are spliced to form an assembly cavity, a transmission avoidance hole is arranged at the middle position of the lower part of the front shell, an input shaft and a middle shaft are arranged in the assembly cavity, the middle shaft is arranged in parallel at the lower part of the input shaft, the front end of the input shaft protrudes out of the front shell and is connected with a driving motor, the part of the input shaft positioned in the assembly cavity is provided with an input shaft gear, the intermediate shaft is sleeved with an intermediate shaft gear and an intermediate main gear respectively, the intermediate shaft gear is meshed and connected with the input shaft gear, the lower part of the gearbox body is provided with a differential mechanism, two output shafts of the differential are arranged in parallel with the intermediate shaft, upper teeth of a main reduction gear of the differential are in meshed connection with lower teeth of the middle main gear, the meshing part of the main reducing gear and the middle main gear is positioned in the corresponding area of the transmission avoiding hole.
2. The electrically driven transaxle single reduction transmission of claim 1, wherein: the input shaft gear is integrated with the input shaft.
3. The electrically driven transaxle single reduction transmission of claim 1, wherein: the middle main gear is integrated with the intermediate shaft.
4. The electrically driven transaxle single reduction transmission of claim 1, wherein: the intermediate shaft gear is fixedly sleeved on the intermediate shaft through a key structure.
5. The electrically driven transaxle single reduction transmission of claim 1, wherein: differential mechanism's first output shaft cover is equipped with first tapered roller bearing, and first differential mechanism bearing cap adorns admittedly in the preceding terminal surface down of preceding shell, first differential mechanism bearing cap, preceding shell combination form first location mounting hole, first tapered roller bearing location support in first location mounting hole, differential mechanism's second output shaft cover is equipped with second tapered roller bearing, and second differential mechanism bearing cap adorns admittedly in the terminal surface under the back of preceding shell, second differential mechanism bearing cap, preceding shell combination form second location mounting hole, second tapered roller bearing location support in second location mounting hole.
6. The electrically driven single reduction transmission of claim 5, wherein: adjusting nuts are annularly distributed in the area, corresponding to the front end face of the first tapered roller bearing, of the front end face of the first differential bearing cover, and the inner ends of the adjusting nuts are tightly attached to the front end face of the outer ring of the first tapered roller bearing.
7. The electrically driven transaxle single reduction transmission of claim 1, wherein: the front end of the input shaft corresponds to the mounting position of the front shell, and is sequentially sleeved with a first deep groove ball bearing, a first snap ring and an oil seal, the rear end of the input shaft is sleeved with a second deep groove ball bearing and then is positioned and mounted in a deep groove ball bearing hole of the rear cover, and the second snap ring axially fixes the second deep groove ball bearing.
8. The electrically driven transaxle single reduction transmission of claim 1, wherein: the front end cover of jackshaft is equipped with the cylindrical roller bearing after the support is positioned in the jackshaft mounting ring inslot of preceding shell, the rear end of jackshaft through third deep groove ball bearing location install in the jackshaft location mounting hole of back lid.
9. The electrically driven transaxle single reduction transmission of claim 1, wherein: all the gears adopt thin and tall teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822033416.XU CN210218621U (en) | 2018-12-05 | 2018-12-05 | Electric drive axle single reduction transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822033416.XU CN210218621U (en) | 2018-12-05 | 2018-12-05 | Electric drive axle single reduction transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218621U true CN210218621U (en) | 2020-03-31 |
Family
ID=69914073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822033416.XU Active CN210218621U (en) | 2018-12-05 | 2018-12-05 | Electric drive axle single reduction transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372977A (en) * | 2018-12-05 | 2019-02-22 | 苏州绿控传动科技股份有限公司 | Electricity drives bridge list speed variable device |
-
2018
- 2018-12-05 CN CN201822033416.XU patent/CN210218621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372977A (en) * | 2018-12-05 | 2019-02-22 | 苏州绿控传动科技股份有限公司 | Electricity drives bridge list speed variable device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210218621U (en) | Electric drive axle single reduction transmission | |
| CN203686002U (en) | Differential and compact half direct-drive wind power gearbox | |
| CN100497994C (en) | Planetary gear box specially for great power bidirectional submersed three-flow pump | |
| CN210196369U (en) | Logistics vehicle electric drive axle transmission | |
| CN203670630U (en) | Composite planetary differential mechanism wind power gearbox | |
| CN101672346A (en) | Rocket movable launcher supporting arm speed reducer | |
| CN101429991A (en) | Planet gear speed increaser for hydroelectric power generation | |
| CN109372977A (en) | Electricity drives bridge list speed variable device | |
| CN215980767U (en) | Miniaturized lightweight second grade planetary reducer | |
| CN213017552U (en) | High-integration electric drive assembly transmission system | |
| CN201533211U (en) | Bridge cylinder integrated reducing motor | |
| CN214197184U (en) | Dry-type double-clutch two-gear automatic transmission of pure electric vehicle | |
| CN201386628Y (en) | Wind power generation speed increasing gearbox | |
| CN212332293U (en) | Integrated form second grade speed reduction electric drive axle | |
| CN201535344U (en) | Small-volume large-torque decelerator for rocket-launching movable platform | |
| CN209818648U (en) | Single-stage speed reducer of pure electric vehicle | |
| CN209925574U (en) | Gear ring axial limiting structure of wheel reduction gear of drive axle | |
| CN111703294A (en) | Double-support electric driving wheel | |
| CN111878554A (en) | High-integration electric drive assembly transmission system | |
| CN101672347A (en) | Rocket movable launcher reducer with small volume and large torque | |
| CN215409996U (en) | Helical tooth type planetary reducer | |
| CN216407631U (en) | Planet wheel speed reducer | |
| CN215110335U (en) | Three-stage speed reducer | |
| CN217583071U (en) | Two-stage gear drive speed reducer | |
| CN210531517U (en) | Power output transmission gear box installed on engineering vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |