CN112092547A - Single-engine power transmission system for amphibious vehicle and vehicle - Google Patents
Single-engine power transmission system for amphibious vehicle and vehicle Download PDFInfo
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- CN112092547A CN112092547A CN202010976428.5A CN202010976428A CN112092547A CN 112092547 A CN112092547 A CN 112092547A CN 202010976428 A CN202010976428 A CN 202010976428A CN 112092547 A CN112092547 A CN 112092547A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
- B60F3/003—Parts or details of the vehicle structure; vehicle arrangements not otherwise provided for
Abstract
The invention discloses a single-engine motor power transmission system and a vehicle for an amphibious vehicle, which comprise a front axle assembly, a rear axle assembly, a power output assembly and a marine propulsion assembly, wherein the power output assembly is positioned between the front axle assembly and the rear axle assembly and close to the rear axle assembly, the power output end of the power output assembly faces towards the front axle assembly, the marine propulsion assembly and the rear axle assembly are positioned on the same side of the power output assembly, and the output end of the power output assembly is respectively connected with the front axle assembly, the rear axle assembly and the marine propulsion assembly. The invention not only obviously reduces the gravity height of the whole vehicle, but also reasonably distributes the empty and full load weight of the whole vehicle, and the front and rear suspension sizes meet the requirements of the land cross-country performance.
Description
Technical Field
The invention belongs to the technical field of special vehicles, and particularly discloses a single-engine power transmission system for an amphibious vehicle and the vehicle.
Background
There are many known single engine power transmission schemes for amphibious vehicles. For example, chinese patent application No. CN200101813942.6 discloses a transmission system in which the output end of an engine flywheel faces forward, a land transmission device composed of a transmission case and a transfer case is arranged between the engine and a front axle, and is connected with the engine through a transmission shaft, and the land transmission device can respectively drive front and rear wheels; the water propeller can be directly connected with the crankshaft end of the engine, and can also be connected with a transfer case to drive through the land transmission device or directly driven by the transfer case in the land transmission device. The obvious difference is that the marine propeller in this patent provides power drive through the power takeoff that engine flywheel output connects, and marine propeller's power transmission does not pass through land transmission.
Chinese patent application No. CN201380073172.5 discloses a power train for an amphibious vehicle, in which the output end of an engine flywheel faces backward, a land transmission device composed of a gearbox and a transfer case is located between the engine and a rear axle and connected with the engine through a transmission shaft, the land transmission device can respectively drive front and rear wheels, two waterborne propellers are driven by power provided by the waterborne transfer case, and the waterborne transfer case can obtain the power of the engine through the transfer case in the rear axle or the land power transmission device or a power takeoff arranged in front of the land power transmission device. The obvious difference between this patent and this patent is that the engine flywheel output in this patent is forward, and the land power transmission is located between engine and front axle.
Chinese patent application No. CN201680036168.5 discloses a power train for an amphibious vehicle, in which the output end of an engine flywheel faces forward, the engine is located behind a rear axle, a land transmission device composed of a gearbox and a transfer case is located between the front axle and the rear axle and connected with the engine through a transmission shaft, and the land transmission device can respectively drive front and rear wheels; the output end of the engine flywheel is provided with an overwater transfer case, and the overwater transfer case can distribute the power of the engine to the two overwater propellers respectively. This patent is its obvious difference relatively, and the engine is located the rear axle before in this patent, and the power of engine is transmitted for two marine propellers via transfer case on water behind the power takeoff again.
Chinese patent application No. CN201910829342.7 discloses a power train for an amphibious vehicle, in which the output end of the engine flywheel faces forward, and the power train is directly connected with a transmission to transmit torque to a multi-step transmission, so as to drive a marine propeller and wheels respectively. Compared with the obvious difference, the power at the output end of the engine flywheel is transmitted to the gearbox, the land transfer case, the axle and the wheels after being distributed by the torque of the power takeoff. The input torque capacity of a transmission and a land transfer case matched with the engine can be obviously reduced, and the efficiency of a land transmission system is improved.
In practical application, in order to meet the arrangement requirements such as included angle limitation during high-speed operation of a transmission shaft, the center of gravity of the whole vehicle is usually higher, so that the capability of coping with severe environments on water and on land during use of the vehicle is greatly reduced, and meanwhile, the arrangement scheme in the CN201680036168.5 can also prolong the rear overhang of the whole vehicle, so that the departure angle is reduced, and the severe off-road conditions on land cannot be coped with. The arrangement scheme in CN201380073172.5 can lead the gravity center of the whole vehicle with full load to be back, the gravity center of the whole vehicle with no load to be front, and the amphibious vehicle sails in different postures under different states with full load and empty load, thus affecting the sailing speed and the propulsion efficiency. The input torque capacity of the transmission and the multi-stage transfer case matched with the engine in the CN201910829342.7 is large, and particularly for a diesel engine, the design and the model selection of the transmission and the multi-stage transfer case are difficult.
Disclosure of Invention
In order to solve the technical problems, the invention provides a single-engine power transmission system for an amphibious vehicle and a special vehicle comprising the single-engine power transmission system for the amphibious vehicle, which not only obviously reduces the gravity center height of the whole vehicle, but also reasonably distributes the empty and full load weight of the whole vehicle, and the front and rear suspension sizes meet the requirements of the land cross-country performance.
The invention discloses a single-engine power transmission system for an amphibious vehicle, which comprises a front axle assembly, a rear axle assembly, a power output assembly and a marine propulsion assembly, wherein the power output assembly is positioned between the front axle assembly and the rear axle assembly and close to the rear axle assembly, the power output end of the power output assembly faces towards the front axle assembly, the marine propulsion assembly and the rear axle assembly are positioned on the same side of the power output assembly, and the output end of the power output assembly is respectively connected with the front axle assembly, the rear axle assembly and the marine propulsion assembly.
In a preferred embodiment of the invention, the power take-off assembly is located to one side of a longitudinal centre line of the vehicle.
In a preferred embodiment of the present invention, the power output assembly includes an engine with an output end arranged toward the front axle assembly, the output end of the engine is in transmission connection with a power takeoff, a first output end of the power takeoff is in transmission connection with the front axle assembly and the rear axle assembly, and a second output end of the power takeoff is connected with the marine propulsion assembly.
In a preferred embodiment of the present invention, the first output end of the power takeoff is in transmission connection with a transmission case through a transmission shaft, the output end of the transmission case is in transmission connection with a first transfer case, the first transfer case is in transmission connection with the front axle assembly through a front axle transmission shaft, and the first transfer case is in transmission connection with the rear axle assembly through a rear axle transmission shaft.
In a preferred embodiment of the invention, the rear axle drive shaft comprises a first rear axle drive shaft, a second rear axle drive shaft and a drive shaft intermediate support, the second rear axle drive shaft being located below the power take-off on the engine side.
In a preferred embodiment of the present invention, the second output end of the power takeoff is connected to the second transfer case through a transmission shaft, and the output end of the second transfer case is in transmission connection with the marine propulsion assembly.
In a preferred embodiment of the present invention, the marine propulsion assembly comprises two jet pump drive shafts arranged in parallel, each jet pump drive shaft having a jet pump connected thereto.
In a preferred embodiment of the present invention, the second transfer boxes are arranged symmetrically along the vehicle longitudinal center line.
In a preferred embodiment of the invention, the second transfer case is located downstream of the rear axle assembly, the output of the second transfer case being higher than the input of the second transfer case.
The invention also discloses a vehicle which comprises the single-engine power transmission system for the amphibious vehicle.
The invention has the beneficial effects that: the invention has simple structure and high practicability, realizes the low-position arrangement of the engine, obviously reduces the gravity center height of the whole vehicle, and simultaneously ensures that the empty and full load weight distribution of the whole vehicle is reasonable; in addition, when the whole vehicle runs on water, the power transmission of the engine does not pass through the land variable speed transmission device, so that the load of the land transmission device is reduced as much as possible, the transmission torque is reduced, the dead weight of the whole vehicle is reduced, the bearing capacity of the whole vehicle is further improved, and the engine is particularly suitable for large-scale amphibious vehicles.
Drawings
FIG. 1 is a schematic diagram of a single engine drivetrain system for an amphibious vehicle according to the present invention;
FIG. 2 is a top view of a single engine drivetrain of an amphibious vehicle according to the present invention;
FIG. 3 is a side view of a single engine drivetrain of an amphibious vehicle according to the present invention;
wherein: 1. a front main reducer and differential assembly; 2. a wheel; 3. a front left half shaft; 4. a front right half shaft; 5. a front axle drive shaft; 6. a first rear axle drive shaft; 7. the middle of the transmission shaft is supported; 8. a second rear axle drive shaft; 9. a rear main reducer and differential assembly; 10. a rear left half shaft; 11. a first jet pump transmission shaft; 12. a spray pump; 13. a second jet pump transmission shaft; 14. a second transfer case; 15. a posterior right half-axis; 16. a drive shaft; 17. an engine; 18. a power takeoff; 19. a drive shaft; 20. a gearbox; 21. a first branch tank.
Detailed Description
The technical solutions of the present invention (including the preferred ones) are further described in detail by way of fig. 1 to 3 and enumerating some alternative embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The invention discloses a single-engine power transmission system for an amphibious vehicle, which comprises a front axle assembly, a rear axle assembly, a power output assembly and a marine propulsion assembly, wherein the power output assembly is positioned between the front axle assembly and the rear axle assembly and close to the rear axle assembly, the power output end of the power output assembly faces towards the front axle assembly, the marine propulsion assembly and the rear axle assembly are positioned on the same side of the power output assembly, and the output end of the power output assembly is respectively connected with the front axle assembly, the rear axle assembly and the marine propulsion assembly.
Preferably, the power take-off assembly is located to one side of the longitudinal centre line of the vehicle.
Preferably, the power output assembly comprises an engine with an output end arranged towards the front axle assembly, the output end of the engine is in transmission connection with a power takeoff, a first output end of the power takeoff is in transmission connection with the front axle assembly and the rear axle assembly, and a second output end of the power takeoff is connected with the marine propulsion assembly.
Preferably, the first output end of the power takeoff is in transmission connection with the gearbox through a transmission shaft, the output end of the gearbox is in transmission connection with the first transfer case, the first transfer case is in transmission connection with the front axle assembly through a front axle transmission shaft, and the first transfer case is in transmission connection with the rear axle assembly through a rear axle transmission shaft.
Preferably, the rear axle transmission shaft comprises a first rear axle transmission shaft, a second rear axle transmission shaft and a transmission shaft intermediate support, and the second rear axle transmission shaft is positioned below the power takeoff and on the side surface of the engine.
Preferably, the second output end of the power takeoff is connected with the second transfer case through a transmission shaft, and the output end of the second transfer case is in transmission connection with the marine propulsion assembly.
Preferably, the marine propulsion assembly comprises two jet pump drive shafts arranged in parallel, each jet pump drive shaft having a jet pump connected thereto.
Preferably, the second transfer boxes are arranged symmetrically along the longitudinal centre line of the vehicle.
Preferably, the second transfer case is located downstream of the rear axle assembly, the output of the second transfer case being higher than the input of the second transfer case.
The invention also discloses a vehicle which comprises the single-engine power transmission system for the amphibious vehicle.
The invention is further explained below with reference to the drawings of the invention:
the engine 17, the power take-off 18, the gearbox 20 and the first branch box 21 are arranged to be deviated to one side of the left and the right of the vehicle, the engine 17 is arranged between the rear main reducer, the differential assembly 9 and the front main reducer, the differential assembly 1 and is close to the rear main reducer and the differential assembly 9, and the output end of the engine 17 faces forwards. The power take-off 18 is arranged at the power output end of the front end of the engine 17, the gearbox 20 is arranged between the engine 17 and the front main reduction and differential assembly 1, and the first transfer case 21 is arranged at the power output end of the gearbox 20.
The output shaft of the engine 17 is directly connected with the input end of the power takeoff 18, the power takeoff 18 is connected with a gearbox 20 through a gearbox transmission shaft 19, the output end of the gearbox 20 is directly connected with the input end of a first transfer case 21, the first transfer case 21 is respectively connected with a front main reducer and a differential assembly 1 through a front axle transmission shaft 5, and is connected with a rear main reducer and a differential assembly 9 through a rear axle transmission shaft, wherein the rear axle transmission shaft consists of a first rear axle transmission shaft 6, a second rear axle transmission shaft 8 and a transmission shaft middle support 7, and the second rear axle transmission shaft 8 passes through the lower part of the power takeoff 18 and the side surface of the engine 17. The front main reducer, the differential assembly 1 and the rear main reducer, the differential assembly 9 are respectively connected with the four wheels 2 through a front left half shaft 3, a front right half shaft 4, a rear left half shaft 10 and a rear right half shaft 15.
The power take-off 18 is also connected via a drive shaft 16 to a second transfer case which is connected to the two injection pumps 12 via the injection pump drive shafts 11, 13. The transmission shaft 16 passes through the upper part of the rear main reducer and differential assembly 9, the second transfer case 14 is symmetrically arranged along the longitudinal center line of the vehicle, the second transfer case 14 is arranged behind the rear main reducer and differential assembly 9, and the output end position of the second transfer case 14 is higher than the input end position.
In the land driving mode, the power transmitted by the engine 17 is transmitted to the gearbox 20 through the power take-off 18, then transmitted to the front main reduction and differential assembly 1 and the rear main reduction and differential assembly 9 respectively through the first branch box 21, and finally distributed to the four wheels 2. The power take-off 18 is provided with a plurality of clutches by means of which the power take-off 18 is connected to the transmission shaft 19 of the gearbox and disconnected from the transmission shaft 16 in the land driving mode.
In the water sailing mode, the power of the engine 17 is transmitted to the second transfer case 14 through the power takeoff 18 and then distributed to the two jet pumps 12; in this mode, actuation of the clutch in the power take-off 18 causes the power take-off 18 to be connected to power transmission to the driveshaft 16 and disconnected from power transmission to the gearbox driveshaft 19.
In the land and water beach mode, the power of the engine 17 is transmitted to the second gearbox 14 and the gearbox 20 through the power take-off 18, and the clutch action in the power take-off 18 makes the power take-off 18 and the power transmission of the transmission shafts 16 and 19 connected simultaneously. The mode is mainly applied to the working condition that the vehicle is ashed from water.
The power take-off 18 and the gearbox 20 can be switched on and off by the neutral position of the gearbox 20 besides the clutch.
All the transmission shafts and the half shafts are provided with universal transmission structures such as cross shafts, ball cages and the like.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (10)
1. A single-engine power transmission system for an amphibious vehicle comprises a front axle assembly, a rear axle assembly, a power output assembly and a marine propulsion assembly, and is characterized in that: the power output assembly is located between the front axle assembly and the rear axle assembly and is close to the rear axle assembly, the power output end of the power output assembly faces the front axle assembly, the marine propulsion assembly and the rear axle assembly are located on the same side of the power output assembly, and the output end of the power output assembly is respectively connected with the front axle assembly, the rear axle assembly and the marine propulsion assembly.
2. A single engine power transmission system for an amphibious vehicle according to claim 1, characterised in that: the power output assembly is located on one side of a longitudinal centerline of the vehicle.
3. A single engine power transmission system for an amphibious vehicle according to claim 1, characterised in that: the power output assembly comprises an engine with an output end arranged towards the front axle assembly, the output end of the engine is in transmission connection with a power takeoff, a first output end of the power takeoff is in transmission connection with the front axle assembly and the rear axle assembly, and a second output end of the power takeoff is connected with the marine propulsion assembly.
4. A single engine power transmission system for an amphibious vehicle according to claim 3, characterised in that: the first output end of the power takeoff is connected with a gearbox through a transmission shaft in a transmission manner, the output end of the gearbox is connected with a first transfer case in a transmission manner, the first transfer case is connected with a front axle assembly in a transmission manner through a front axle transmission shaft, and the first transfer case is connected with a rear axle assembly in a transmission manner through a rear axle transmission shaft.
5. The single-engine power transmission system for an amphibious vehicle according to claim 4, characterised in that: the rear axle transmission shaft comprises a first rear axle transmission shaft, a second rear axle transmission shaft and a transmission shaft middle support, and the second rear axle transmission shaft is positioned below the power takeoff and on the side surface of the engine.
6. A single engine power transmission system for an amphibious vehicle according to claim 3, characterised in that: and a second output end of the power takeoff is connected with a second branch box through a transmission shaft, and an output end of the second branch box is in transmission connection with the marine propulsion assembly.
7. The single-engine power transmission system for an amphibious vehicle according to claim 6, characterised in that: the marine propulsion assembly comprises two jet pump transmission shafts which are arranged in parallel, and each jet pump transmission shaft is connected with a jet pump.
8. The single-engine power transmission system for an amphibious vehicle according to claim 6, characterised in that: the second transfer boxes are symmetrically arranged along the longitudinal center line of the vehicle.
9. The single-engine power transmission system for an amphibious vehicle according to claim 6, characterised in that: the second transfer case is located at the downstream of the rear axle assembly, and the output end of the second transfer case is higher than the input end of the second transfer case.
10. A vehicle, characterized in that: an amphibious vehicle single engine power train comprising a single engine according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976428.5A CN112092547B (en) | 2020-09-15 | 2020-09-15 | Single-engine power transmission system for amphibious vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976428.5A CN112092547B (en) | 2020-09-15 | 2020-09-15 | Single-engine power transmission system for amphibious vehicle and vehicle |
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| Publication Number | Publication Date |
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| CN112092547A true CN112092547A (en) | 2020-12-18 |
| CN112092547B CN112092547B (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010976428.5A Active CN112092547B (en) | 2020-09-15 | 2020-09-15 | Single-engine power transmission system for amphibious vehicle and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844219A (en) * | 2021-10-20 | 2021-12-28 | 芜湖造船厂有限公司 | Power transmission system of amphibious automobile |
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| DE3916200A1 (en) * | 1989-05-18 | 1990-11-22 | Renk Ag | Power drive for amphibious vehicle - has drive shaft with slip arrangement and floating drive shaft with controllable slip clutch |
| WO2002012005A1 (en) * | 2000-08-10 | 2002-02-14 | Gibbs Technologies Limited | Power train |
| CN1447759A (en) * | 2000-08-25 | 2003-10-08 | 吉布斯技术有限公司 | Power train for amphibian |
| CN104995046A (en) * | 2012-12-20 | 2015-10-21 | 吉布斯技术有限公司 | A power train for an amphibian |
| US20170282659A1 (en) * | 2011-06-13 | 2017-10-05 | Gibbs Technologies Limited | Power Train for an Amphibian |
| CN107351611A (en) * | 2004-10-22 | 2017-11-17 | 吉布斯技术有限公司 | A kind of amtrack |
| CN107719043A (en) * | 2016-08-11 | 2018-02-23 | 赵兴华 | A kind of power-transmission system of four-wheel drive amphibious vehicle ship |
| CN107820466A (en) * | 2015-04-21 | 2018-03-20 | 吉布斯技术有限公司 | Dynamical system for duck |
| CN110525144A (en) * | 2019-09-04 | 2019-12-03 | 益阳天华两栖车艇有限公司 | A kind of power-transmission system of light high-speed amphibious vehicle |
-
2020
- 2020-09-15 CN CN202010976428.5A patent/CN112092547B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3916200A1 (en) * | 1989-05-18 | 1990-11-22 | Renk Ag | Power drive for amphibious vehicle - has drive shaft with slip arrangement and floating drive shaft with controllable slip clutch |
| WO2002012005A1 (en) * | 2000-08-10 | 2002-02-14 | Gibbs Technologies Limited | Power train |
| CN1447759A (en) * | 2000-08-25 | 2003-10-08 | 吉布斯技术有限公司 | Power train for amphibian |
| CN107351611A (en) * | 2004-10-22 | 2017-11-17 | 吉布斯技术有限公司 | A kind of amtrack |
| US20170282659A1 (en) * | 2011-06-13 | 2017-10-05 | Gibbs Technologies Limited | Power Train for an Amphibian |
| CN104995046A (en) * | 2012-12-20 | 2015-10-21 | 吉布斯技术有限公司 | A power train for an amphibian |
| CN107820466A (en) * | 2015-04-21 | 2018-03-20 | 吉布斯技术有限公司 | Dynamical system for duck |
| CN107719043A (en) * | 2016-08-11 | 2018-02-23 | 赵兴华 | A kind of power-transmission system of four-wheel drive amphibious vehicle ship |
| CN110525144A (en) * | 2019-09-04 | 2019-12-03 | 益阳天华两栖车艇有限公司 | A kind of power-transmission system of light high-speed amphibious vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844219A (en) * | 2021-10-20 | 2021-12-28 | 芜湖造船厂有限公司 | Power transmission system of amphibious automobile |
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| CN112092547B (en) | 2022-01-21 |
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