CN113858942A - Power transmission system and vehicle with same - Google Patents
Power transmission system and vehicle with same Download PDFInfo
- Publication number
- CN113858942A CN113858942A CN202111185592.5A CN202111185592A CN113858942A CN 113858942 A CN113858942 A CN 113858942A CN 202111185592 A CN202111185592 A CN 202111185592A CN 113858942 A CN113858942 A CN 113858942A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 91
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 26
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention provides a power transmission system and a vehicle with the same, wherein the power transmission system comprises: the front main reducer assembly is connected with the front wheel assembly; the rear main reducer assembly is connected with a rear wheel assembly; the transmission is arranged between the front main speed reducer assembly and the rear main speed reducer assembly; the transfer case is integrated on the rear main reducer assembly; one end of the inter-axle transmission shaft is connected with the front main reducer assembly, and the other end of the inter-axle transmission shaft is connected with the rear main reducer assembly; one end of the first transmission shaft is connected with the transfer case, and the other end of the first transmission shaft is connected with the speed changer. According to the power transmission system provided by the embodiment of the invention, the transfer case and the rear main reducer assembly are integrated into a whole, so that the arrangement space is saved, the weight of the power transmission system is reduced, and the transmission torque value and the bearing capacity of the power transmission system per unit weight are improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a power transmission system and a vehicle with the same.
Background
With the development of light tactical vehicles in various countries, the tactical technical indexes are continuously improved, and the power transmission system of the vehicle is also continuously changed. For the power transmission system arrangement, most of the power transmission system arrangement is an engine front-mounted arrangement, a transfer case independent arrangement or a transfer case and transmission integrated arrangement. The two arrangement modes of the transfer case are equivalent to the weight index of the power transmission system for the whole vehicle. In addition, the transmission and the transfer case are designed integrally, compared with a scheme of independent arrangement of the transfer case, the arrangement space is saved to a certain extent, but the size and the weight of the transfer case are increased, and the light weight is difficult to realize.
Disclosure of Invention
In view of the above, the present invention provides a power transmission system.
The invention also provides a vehicle with the power transmission system.
In order to solve the technical problems, the invention adopts the following technical scheme:
a power transmission system according to an embodiment of the first aspect of the invention includes:
the front main speed reducer assembly is connected with a front wheel assembly;
the rear main reducer assembly is connected with a rear wheel assembly;
a transmission disposed between the front final drive assembly and the rear final drive assembly;
a transfer case integrated on the rear final drive assembly;
one end of the inter-axle transmission shaft is connected with the front main speed reducer assembly, and the other end of the inter-axle transmission shaft is connected with the rear main speed reducer assembly;
one end of the first transmission shaft is connected with the transfer case, and the other end of the first transmission shaft is connected with the transmission.
Further, the first transmission shaft and the inter-bridge transmission shaft are arranged at intervals in the vertical direction.
Furthermore, the inter-axle transmission shaft is of a two-section structure.
Further, the front wheel assembly includes two front half-shafts for connecting the front final drive assembly, respectively, and the rear wheel assembly includes two rear half-shafts for connecting the rear final drive assembly, respectively.
Further, the inter-axle transmission shaft, the first transmission shaft, the front half shaft and the rear half shaft are respectively made of aluminum alloy materials.
Further, the front final drive assembly and the rear final drive assembly respectively include a reducer fixing bracket and a reducer housing.
Further, the reducer fixing bracket and the reducer case are respectively formed as aluminum alloy material pieces.
Further, the front wheel assembly and the rear wheel assembly each include a knuckle band brake assembly that includes a knuckle.
Further, the steering knuckle is an aluminum alloy material piece.
A vehicle according to an embodiment of the second aspect of the invention includes the power transmission system described in the above embodiment.
The technical scheme of the invention has the following beneficial effects:
according to the power transmission system provided by the embodiment of the invention, the transfer case and the rear main reducer assembly are integrated into a whole, so that the arrangement space is saved, the weight of the power transmission system is reduced, and the transmission torque value and the bearing capacity of the power transmission system per unit weight are improved.
Drawings
FIG. 1 is a schematic diagram of a prior art powertrain;
FIG. 2 is a torque transfer route diagram of a prior art powertrain system;
FIG. 3 is a schematic structural diagram of a powertrain system according to an embodiment of the present invention;
fig. 4 is a torque transmission route diagram of the powertrain system according to the embodiment of the invention.
Reference numerals
A power transmission system 100; a front final drive assembly 10; a rear final drive assembly 20; a transmission 30; a transfer case 40; a first transmission shaft 50; an inter-axle drive shaft 60; a front half shaft 70; a rear half shaft 80; the knuckle has a brake assembly 90.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In the prior art, as shown in fig. 1, a transmission 30 and a transfer case 40 of a power system are designed in an integrated manner, and compared with an independent arrangement scheme of the transfer case 40, an arrangement space is saved to a certain extent, but considering the requirement that an arrangement included angle of a transmission shaft is less than 5 °, the size of an input shaft and an output shaft of the transfer case 40 needs to be quite large to meet the included angle of the transmission shaft, which results in increase of size and weight of the transfer case 40, and light weight cannot be effectively realized.
In addition, the conventional powertrain torque transmission routes, i.e., the transmission 30, the transfer case 40, two transmission shafts, two final drives, four half shafts and four wheel sides, are shown in fig. 2, wherein the total system reduction ratio is i0, the final reduction ratio is i1, and the wheel side speed ratio is i2, which is disadvantageous for the reduction of weight of the powertrain and the wheel sides.
In response to the problems of the prior art powertrain, the inventors of the present application propose a powertrain system 100.
The power transmission system 100 according to the embodiment of the invention will be described first in detail with reference to the accompanying drawings.
The power transmission system 100 according to the embodiment of the present invention includes a front final drive assembly 10, a rear final drive assembly 20, a transmission 30, a transfer case 40, an inter-axle drive shaft 60, and a first drive shaft 50.
Specifically, as shown in fig. 3, the front final drive assembly 10 is connected to the front wheel assembly, the rear final drive assembly 20 is connected to the rear wheel assembly, the transmission 30 is disposed between the front final drive assembly 10 and the rear final drive assembly 20, the transfer case 40 is integrated on the rear final drive assembly 20, one end of the inter-axle transmission shaft 60 is connected to the front final drive assembly 10, the other end is connected to the rear final drive assembly 20, one end of the first transmission shaft 50 is connected to the transfer case 40, and the other end is connected to the transmission 30.
In other words, the transfer case 40 is integrated with the rear final drive assembly 20, and the transfer case 40 is connected with the transmission 30 through the first transmission shaft 50 due to the change of the position of the transfer case 40, and compared with the conventional scheme, the input shaft of the transfer case 40 can have a certain angle with the output shaft of the transmission 30, so that the installation is convenient, and thus the size of the input shaft of the transfer case 40 and the output shaft of the transmission 30 can be reduced, the overall volume is reduced, and the weight is reduced. Meanwhile, the gravity center height of the whole vehicle can be effectively reduced, the front and rear axle load distribution is more reasonable, and the stability and the smoothness of the vehicle are improved.
Therefore, according to the power transmission system 100 of the embodiment of the invention, by integrating the transfer case 40 and the rear main reducer assembly 20, the arrangement space is saved, the weight of the power transmission system 100 is reduced, and the transmission torque value and the bearing capacity of the power transmission system 100 per unit weight are improved.
According to an embodiment of the present invention, the first transmission shaft 50 and the inter-axle transmission shaft 60 are spaced apart in the up-down direction, which facilitates installation.
Preferably, the inter-axle transmission shaft 60 has a two-stage structure, which allows the overall length of the inter-axle transmission shaft 60 to be long, facilitating a reduction in the size of the input shaft of the transfer case 40 and the output shaft of the transmission 30.
In one embodiment of the present invention, the front wheel assembly includes two front axle shafts 70 for connecting to the front final drive assembly 10, respectively, and the rear wheel assembly includes two rear axle shafts 80 for connecting to the rear final drive assembly 20, respectively.
Further, the inter-axle drive shaft 60, the first drive shaft 50, the front half shaft 70 and the rear half shaft 80 are each an aluminum alloy material piece.
According to one embodiment of the present invention, the front final drive assembly 10 and the rear final drive assembly 20 include a reducer fixing bracket and a reducer case, respectively. Preferably, the reducer fixing bracket and the reducer case are respectively formed as pieces of an aluminum alloy material.
In one embodiment of the present invention, the front and rear wheel assemblies each include a knuckle band brake assembly 90, and the knuckle band brake assembly 90 includes a knuckle. Optionally, the steering knuckle is an aluminum alloy material piece.
That is, in order to further reduce the weight of the power transmission system 100, the relevant components of the power transmission system 100 may be made of high-strength aluminum alloy.
In addition, by redistributing the torque transmission path through the powertrain system 100, as shown in fig. 4, compared with the conventional torque transmission path (i0 remains unchanged, i1 and i2 are adjusted to i3 and i4), the half-shaft and wheel-side input torque is greatly reduced, the wheel transmission torque is 100%, and the half-shaft and wheel-side input torque is reduced from 40.7% to 25.3%, so the weight of the half-shaft and wheel-side of the powertrain system 100 is further reduced.
In summary, according to the power transmission system 100 of the embodiment of the present invention, the transfer case 40 and the rear final drive assembly 20 are integrated, and the final reduction ratio and the wheel-side reduction ratio are redistributed, so that the system transmission torque is optimized, the layout space is saved, the weight of the power transmission system 100 is reduced, and the transmission torque value and the bearing capacity of the power transmission system 100 per unit weight are improved.
The vehicle according to the embodiment of the present invention includes the power transmission system 100 according to the above-described embodiment, and since the power transmission system 100 according to the above-described embodiment of the present invention has the above-described technical effects, the vehicle according to the embodiment of the present invention also has the corresponding technical effects that the weight of the power transmission system 100 is reduced, and the transmission torque value and the load-bearing capacity per unit weight of the power transmission system 100 are improved.
Other structures and operations of the vehicle according to the embodiment of the present invention will be understood and readily implemented by those skilled in the art, and thus will not be described in detail.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A powertrain system, comprising:
the front main speed reducer assembly is connected with a front wheel assembly;
the rear main reducer assembly is connected with a rear wheel assembly;
a transmission disposed between the front final drive assembly and the rear final drive assembly;
a transfer case integrated on the rear final drive assembly;
one end of the inter-axle transmission shaft is connected with the front main speed reducer assembly, and the other end of the inter-axle transmission shaft is connected with the rear main speed reducer assembly;
one end of the first transmission shaft is connected with the transfer case, and the other end of the first transmission shaft is connected with the transmission.
2. The drivetrain of claim 1, wherein the first drive shaft is spaced apart from the inter-axle drive shaft in an up-down direction.
3. The drivetrain of claim 1, wherein the inter-axle drive shaft is of two-piece construction.
4. The drivetrain of claim 1, wherein the front wheel assembly includes two front half shafts for connecting to the front final drive assembly, respectively, and the rear wheel assembly includes two rear half shafts for connecting to the rear final drive assembly, respectively.
5. The drivetrain of claim 4, wherein the inter-axle drive shaft, the first drive shaft, the front half shaft, and the rear half shaft are each pieces of aluminum alloy material.
6. The drivetrain of claim 1, wherein the front and rear final drive assemblies each include a drive mount and a drive housing.
7. The powertrain system of claim 6, wherein the retarder fixing bracket and the retarder housing are each formed as a piece of aluminum alloy material.
8. The drivetrain of claim 1, wherein the front and rear wheel assemblies each comprise a knuckle band brake assembly comprising a knuckle.
9. The drivetrain of claim 8, wherein the knuckle is an aluminum alloy material piece.
10. A vehicle characterized by comprising the power transmission system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185592.5A CN113858942A (en) | 2021-10-12 | 2021-10-12 | Power transmission system and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185592.5A CN113858942A (en) | 2021-10-12 | 2021-10-12 | Power transmission system and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113858942A true CN113858942A (en) | 2021-12-31 |
Family
ID=78998579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111185592.5A Pending CN113858942A (en) | 2021-10-12 | 2021-10-12 | Power transmission system and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113858942A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4579183A (en) * | 1984-02-20 | 1986-04-01 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transmission for self-propelled working vehicles |
| CN203681278U (en) * | 2014-01-09 | 2014-07-02 | 中国人民解放军总后勤部建筑工程研究所 | High-mobility engineering machinery transmission system |
| CN205632114U (en) * | 2016-05-04 | 2016-10-12 | 南京依维柯汽车有限公司 | Chassis of off -road vehicle |
| CN207088993U (en) * | 2017-08-01 | 2018-03-13 | 中国第一汽车股份有限公司 | A kind of drive system structure for biasing power assembly and propons main reducing gear |
| DE102017216776A1 (en) * | 2017-09-22 | 2019-03-28 | Bayerische Motoren Werke Aktiengesellschaft | Transmission device for a motor vehicle, as well as drive device with such a transmission device |
| CN213831338U (en) * | 2020-11-27 | 2021-07-30 | 厦门理工学院 | All-terrain vehicle driving device |
-
2021
- 2021-10-12 CN CN202111185592.5A patent/CN113858942A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4579183A (en) * | 1984-02-20 | 1986-04-01 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transmission for self-propelled working vehicles |
| CN203681278U (en) * | 2014-01-09 | 2014-07-02 | 中国人民解放军总后勤部建筑工程研究所 | High-mobility engineering machinery transmission system |
| CN205632114U (en) * | 2016-05-04 | 2016-10-12 | 南京依维柯汽车有限公司 | Chassis of off -road vehicle |
| CN207088993U (en) * | 2017-08-01 | 2018-03-13 | 中国第一汽车股份有限公司 | A kind of drive system structure for biasing power assembly and propons main reducing gear |
| DE102017216776A1 (en) * | 2017-09-22 | 2019-03-28 | Bayerische Motoren Werke Aktiengesellschaft | Transmission device for a motor vehicle, as well as drive device with such a transmission device |
| CN213831338U (en) * | 2020-11-27 | 2021-07-30 | 厦门理工学院 | All-terrain vehicle driving device |
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