CN212584192U - New forms of energy commercial automobile reduction gear - Google Patents
New forms of energy commercial automobile reduction gear Download PDFInfo
- Publication number
- CN212584192U CN212584192U CN202020948996.XU CN202020948996U CN212584192U CN 212584192 U CN212584192 U CN 212584192U CN 202020948996 U CN202020948996 U CN 202020948996U CN 212584192 U CN212584192 U CN 212584192U
- Authority
- CN
- China
- Prior art keywords
- gear
- output
- output shaft
- input
- new energy
- 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 discloses a new forms of energy commercial automobile reduction gear, including procapsid and the back lid that links to each other, be used for the input shaft of being connected with the new forms of energy driving machine, and be used for the output shaft of being connected with the car walking system, wherein, the preceding of input shaft, the back both ends are installed respectively in the dead eye of procapsid and back lid through high-speed deep groove ball bearing, the preceding of output shaft, back both ends are installed respectively in the dead eye of procapsid and back lid through deep groove ball bearing, wherein, be provided with input gear on the input shaft, be provided with on the output shaft and carry out meshing driven output gear with input gear, still be connected with output flange on the output shaft, the output shaft passes through output flange and the car walking system is connected, the reduction gear through by the meshing transmission of a pair of gear pair that. The utility model discloses can reduce the system deformation that the operation in-process reduction gear produced for the reduction gear operates more steadily, and has the characteristics that the bearing speed is high.
Description
Technical Field
The utility model relates to a new forms of energy commercial automobile field specifically is to relate to a new forms of energy commercial automobile reduction gear.
Background
The new energy commercial automobile speed reducer transmits the power of a new energy driving machine (a new energy motor) to an automobile walking system at a proper torque and a proper rotating speed through gear transmission so as to meet the requirements of the automobile on traction and running speed under different road conditions.
At present, most of the speed reducers adopted by the existing new energy commercial automobile are of two-section three-shaft or three-section three-shaft main body structures and generally comprise an input shaft, an intermediate conversion shaft and an output shaft, the axial lengths of the speed reducers of the types are large, the number of transmission parts is large, the speed reducer system is easy to deform in the operation process, the defects of large meshing impact, large noise and poor stability exist, more oil stirring power loss can be generated in the speed reducer, particularly, under the working condition of high rotating speed, the temperature in the speed reducer is high, great failure risks are generated on parts such as oil seals and bearings, and the limit operation rotating speed which can be borne by the existing new energy commercial automobile speed reducer is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a new forms of energy commercial automobile reduction gear to improve the problem that the current new forms of energy commercial automobile reduction gear exists of the aforesaid.
Therefore, the utility model adopts the following technical scheme:
a new energy commercial automobile speed reducer comprises a front shell and a rear cover which are connected with each other, an input shaft used for being connected with a new energy driving machine, and an output shaft used for being connected with an automobile running system, wherein the front end of the input shaft is installed in a bearing hole of the front shell through a high-speed deep groove ball bearing, the rear end of the input shaft is installed in a bearing hole of the rear cover through a high-speed deep groove ball bearing, the front end of the output shaft is installed in the bearing hole of the front shell through a deep groove ball bearing, the rear end of the output shaft is installed in the bearing hole of the rear cover through a deep groove ball bearing, an input gear is arranged on the input shaft, an output gear which is in meshing transmission with the input gear is arranged on the output shaft, an output flange is further connected on the output shaft, and the output shaft is connected with the automobile running system through, the speed reducer realizes speed reduction and torque increase through the meshing transmission of a pair of gear pairs consisting of the input gear and the output gear.
Further, the front housing and the rear cover are both aluminum alloy pieces.
Further, the input gear and the input shaft are of an integrated structure.
Further, the inner hole of the output gear is in interference fit with the output shaft and is connected with the output shaft through a flat key.
Further, the output flange is connected with the output shaft through spline coupling.
Further, the retainer in the high-speed deep groove ball bearing is a plastic retainer.
Further, the input gear and the output gear are both fine high-tooth gears.
Furthermore, a plurality of flange bolts used for being connected with a connecting flange in an automobile running system are arranged on the output flange in an interference press fit mode.
The utility model discloses a two sections two shaft type major structure, only realize the power transmission of new forms of energy driving machine to car traveling system through the meshing transmission of a pair of gear pair, and then realize slowing down, increasing the torsion, compact structure, axial dimension is shorter, transmission spare part is small in quantity, can make the system deformation that the gear engagement in-process produced reduce, and the utility model discloses a full deep groove ball bearing's support scheme can make the reduction gear operation more steady, can reduce the oil stirring power loss that the operation in-process produced, in addition, what the both ends of input shaft adopted all is high-speed deep groove ball bearing to the limit operation rotational speed that the reduction gear can bear has been improved, even still can keep good temperature rise performance under the operating mode of high rotational speed.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is an external structural view of a new energy commercial vehicle retarder according to an embodiment of the present invention;
fig. 2 is an external structure view of the new energy commercial vehicle speed reducer of the present invention in another direction; and
fig. 3 is an internal structure view of a new energy commercial vehicle speed reducer according to an embodiment of the present invention.
Description of the reference numerals
1. A front housing; 2. A rear cover;
3. an input shaft; 4. An output shaft;
5. an input gear; 6. An output gear;
7. and an output flange.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 3, the new energy commercial vehicle retarder of the present invention includes a front housing 1 and a rear cover 2 connected to each other, an input shaft 3 for connection with a new energy driving machine, and an output shaft 4 for connection with a running gear of a vehicle. The automobile running gear is characterized in that an input gear 5 is arranged on the input shaft 3, an output gear 6 which is in meshing transmission with the input gear 5 is arranged on the output shaft 4, the output gear 6 is larger than the input gear 5, an output flange 7 is further connected to one end of the output shaft 4, and the output shaft 4 is connected with a connecting flange in an automobile running system through the output flange 7. And a plurality of flange bolts used for being connected with the connecting flange are arranged on the output flange 7 in an interference press-fit mode.
The speed reducer performs speed reduction and torque increase through the meshing transmission of a pair of gear pairs consisting of the input gear 5 and the output gear 6, and further realizes the power transmission from the new energy driving machine to the automobile running system.
The front end of the input shaft 3 is connected with the new energy driver in a spline connection mode, specifically, a spline hole (an internal spline is arranged in the spline hole) is formed in the front end of the input shaft 3, and the front end of the input shaft 3 is connected with an external spline on an output shaft of the new energy driver through the internal spline.
The front end of the input shaft 3 is installed in the bearing hole of the front shell body 1 through a high-speed deep groove ball bearing, the rear end of the input shaft 3 is installed in the bearing hole of the rear cover 2 through the high-speed deep groove ball bearing, the front end of the output shaft 4 is installed in the bearing hole of the front shell body 1 through the deep groove ball bearing, and the rear end of the output shaft 4 is installed in the bearing hole of the rear cover 2 through the deep groove ball bearing.
The retainer in the high-speed deep groove ball bearing is a plastic retainer.
Both ends of the input shaft 3 are supported by high-speed deep groove ball bearings, so that the bearing rotating speed is high, the running noise is low, the efficiency is high, the heat loss generated in the running process is less, and the temperature rise performance under the working condition of high rotating speed is good.
The utility model discloses a reduction gear only includes a procapsid and a back lid from the appearance to form two segmentation structures, only include an input shaft and an output shaft from the transmission shaft aspect, thereby form two shaft type structures.
The utility model discloses a new forms of energy commercial automobile reduction gear is as follows at the power transmission route of car driving in-process:
new energy driving machine → input shaft 3 → input gear 5 → output gear 6 → output shaft 4 → output flange 7 → automobile running gear.
In order to lighten the weight of the speed reducer, the utility model provides a procapsid 1 and back lid 2 are aluminum alloy parts. The utility model discloses a lightweight design utilizes CAE analysis means, carries out rigidity optimal design through the aluminum alloy procapsid and the aluminum alloy back lid to the reduction gear, can make the weight of reduction gear very alleviate.
The input gear 5 and the input shaft 3 are integrally formed and are of an integral structure. Therefore, the structure is simple, and the reliability is high.
The inner hole of the output gear 6 is in interference fit with the output shaft 4, and the output gear 6 is connected with the output shaft 4 through a flat key, so that the reliability of the gear is ensured at a high rotating speed, and the assembly is very simple.
The output flange 7 is connected with the output shaft 4 through a spline connection mode, has the characteristics of convenient and reliable connection and uniform stress, and can meet the requirements of application occasions with large load bearing capacity and large transmission torque.
The input gear 5 and the output gear 6 both adopt thin high-tooth gears, namely, the gear teeth on the input gear 5 and the output gear 6 adopt thin high-tooth design, so that the meshing contact ratio of the gears can be improved, the meshing is more stable, and the meshing noise can be reduced.
The utility model discloses a two sections diaxon single-speed ratio reducers adopt two sections two shaft type major structure, only carry out the speed reduction through the meshing transmission of a pair of gear pair and increase the torsion, and then realize the power transmission of new forms of energy driving machine to car walking system, compact structure, axial dimension are shorter, transmission spare part is small in quantity, can make the system deformation that the gear engagement in-process produced reduce, and the utility model discloses a full deep groove ball bearing's support scheme can make the reduction gear operate more steadily, and the noise is little, can reduce the stirring oil power loss that the operation in-process produced for power loss is lower.
In addition, both ends of the input shaft adopt high-speed deep groove ball bearings, so that the limit running rotating speed which can be borne by the speed reducer is improved, good temperature rise performance can be kept even under the working condition of high rotating speed, and the high-speed deep groove ball bearings can adapt to the high rotating speed of over 12000 rpm.
In one embodiment, the basic performance of the new energy commercial automobile speed reducer of the utility model is as follows:
the application range is as follows: can be matched with new energy city/intercity logistics vehicles and sanitation vehicles.
The structural form is as follows: longitudinal rear drive and two-shaft type speed reducer.
The main technical parameters are as follows:
1) main center distance: 105 mm;
2) the dry mass of the assembly: 17.8 Kg;
3) rated input torque: 350 Nm;
4) speed ratio: 3.035, respectively;
5) the allowable rated input torque is not more than 350Nm, and the static torque strength backup coefficient is 2.5;
6) the assembly noise standard (test conditions: input rotation speed 3000rpm, range finding 1000mm, standard: less than or equal to 83 dB);
7) lubricating oil grade of the assembly: 75W/90GL-4, oil quantity: 1.2 plus or minus 0.1L;
8) the fatigue life of the assembly should comply with the following specifications:
after the assembly reaches the cycle time of the table above, the major components should not be damaged, and the gears should not be damaged by any of the following: a gear fracture, b tooth surface severe pitting corrosion (single tooth area over 4 mm)2Or pitting to a depth of more than 0.5 mm);
9) static torsion strength: the backup coefficient of the static torsion strength of the assembly is not less than 2.5;
10) transmission efficiency: the average transmission efficiency of the assembly is not less than 97.5 percent.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A new energy commercial automobile speed reducer is characterized by comprising a front shell (1) and a rear cover (2) which are connected with each other, an input shaft (3) used for being connected with a new energy driving machine, and an output shaft (4) used for being connected with an automobile running system,
wherein the front end of the input shaft (3) is installed in the bearing hole of the front shell (1) through a high-speed deep groove ball bearing, the rear end of the input shaft (3) is installed in the bearing hole of the rear cover (2) through a high-speed deep groove ball bearing, the front end of the output shaft (4) is installed in the bearing hole of the front shell (1) through a deep groove ball bearing, the rear end of the output shaft (4) is installed in the bearing hole of the rear cover (2) through a deep groove ball bearing,
the automobile speed reducer is characterized in that an input gear (5) is arranged on the input shaft (3), an output gear (6) which is in meshing transmission with the input gear (5) is arranged on the output shaft (4), an output flange (7) is further connected onto the output shaft (4), the output shaft (4) is connected with an automobile walking system through the output flange (7), and the speed reducer achieves speed reduction and torque increase through the meshing transmission of a pair of gear pairs consisting of the input gear (5) and the output gear (6).
2. The decelerator of new energy commercial vehicle according to claim 1, wherein the front housing (1) and the rear cover (2) are both aluminum alloy pieces.
3. The new energy commercial vehicle retarder of claim 1, wherein the input gear (5) is of unitary construction with the input shaft (3).
4. The new energy commercial automobile speed reducer according to claim 1, characterized in that the inner hole of the output gear (6) is in interference fit with the output shaft (4) and is connected through a flat key.
5. The new energy commercial automobile retarder according to claim 1, characterized in that the connection between the output flange (7) and the output shaft (4) is a spline coupling.
6. The new energy commercial automobile speed reducer of claim 1, wherein the cage in the high speed deep groove ball bearing is a plastic cage.
7. The new energy commercial vehicle retarder of claim 1, wherein the input gear (5) and the output gear (6) are both fine high-tooth gears.
8. The reducer of the new-energy commercial automobile according to claim 1, wherein the output flange (7) is provided with a plurality of flange bolts for connecting with a connecting flange in an automobile running system in an interference press fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948996.XU CN212584192U (en) | 2020-05-29 | 2020-05-29 | New forms of energy commercial automobile reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948996.XU CN212584192U (en) | 2020-05-29 | 2020-05-29 | New forms of energy commercial automobile reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212584192U true CN212584192U (en) | 2021-02-23 |
Family
ID=74643377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020948996.XU Active CN212584192U (en) | 2020-05-29 | 2020-05-29 | New forms of energy commercial automobile reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212584192U (en) |
-
2020
- 2020-05-29 CN CN202020948996.XU patent/CN212584192U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112049919A (en) | Gear box and driving system for railway vehicle and railway vehicle | |
| CN108046146B (en) | Reel supporting transmission system for hoisting mechanism | |
| CN210371919U (en) | Gear, pivot subassembly, reduction gear and vehicle | |
| CN212584192U (en) | New forms of energy commercial automobile reduction gear | |
| CN113022226A (en) | Double-power output electric drive axle | |
| CN201486648U (en) | Engine | |
| CN202432223U (en) | Engine oil pump | |
| CN217761908U (en) | Motor electric control two-gear new energy reducer integrated structure | |
| CN102182815A (en) | Hypoid gear transmission mechanism | |
| CN210371844U (en) | Rotating shaft assembly, speed reducer and vehicle | |
| CN110217096B (en) | Hydraulic hub motor driving system | |
| CN113669433A (en) | Large-torque speed reducer assembly of pure electric passenger car | |
| CN215861669U (en) | Main reducer assembly of middle axle | |
| CN200989241Y (en) | Vehicle engine balance axle system | |
| CN101450615B (en) | Hydraulic transmission gearshift case | |
| CN217927041U (en) | New forms of energy are reduction gear for commercial vehicle | |
| CN214154263U (en) | Integrated series-connection range-extending generator system | |
| CN215257736U (en) | Input shaft assembly for transfer case, transfer case and vehicle | |
| CN215621947U (en) | Driving mechanism of railway vehicle | |
| CN216078234U (en) | Oil storage structure of speed reducer | |
| CN217653209U (en) | Oil cooling and heating driving device for motorcycle | |
| CN216128255U (en) | Gear transmission system and low-floor tramcar | |
| CN213575407U (en) | Low-speed electric vehicle speed reducer | |
| CN215763088U (en) | Two-gear automatic transmission output by planet carrier and new energy automobile using same | |
| CN211710610U (en) | Electric drive system with speed reduction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |