CN113007316B - Power distributor of amphibious vehicle - Google Patents
Power distributor of amphibious vehicle Download PDFInfo
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- CN113007316B CN113007316B CN202110330413.6A CN202110330413A CN113007316B CN 113007316 B CN113007316 B CN 113007316B CN 202110330413 A CN202110330413 A CN 202110330413A CN 113007316 B CN113007316 B CN 113007316B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Arrangement Of Transmissions (AREA)
Abstract
The invention discloses a power divider of an amphibious vehicle, which comprises a shell, wherein at least one input assembly is arranged in the shell and used for inputting power; at least two output assemblies for outputting power to the marine transmission system or/and the land transmission system; the transmission assembly is used for transmitting the power input by the input assembly to the output assembly for output; the two output assemblies are coaxially and symmetrically arranged, and a power control assembly capable of controlling the output power of the output assemblies to be switched on or off according to the running condition of the amphibious vehicle is arranged between each output assembly and the transmission assembly. The invention not only realizes the parallel transmission of two sets of power on land and water, but also effectively reduces the requirement of the whole vehicle weight.
Description
Technical Field
The invention discloses a power distributor, belongs to the technical field of amphibious vehicles, and particularly discloses a power distributor for an amphibious vehicle.
Background
The amphibious vehicle is a special purpose vehicle, is characterized by having the functions of land driving and water navigation, is mainly used in army equipment construction range since the amphibious vehicle is born, is more countries equipped with amphibious vehicles, but is slower in development, and is mostly applied to narrow ranges such as inland rivers.
The invention Chinese patent CN111207182A discloses a clutch transfer case for an amphibious vehicle, which comprises a case body part I, a high-elasticity coupling II, an input part III, an idler wheel part IV, a transmission part V, an output part VI and an operation part VII, and is characterized in that the high-elasticity coupling II is arranged on the input part III through a spline; the input component III and the output component VI are respectively provided with a wet clutch and a wet clutch, and the wet clutch is integrated with a brake unit; the control component VII is integrally arranged on the box body, the power of the clutch transfer case is transmitted to the input component III through the high-elasticity coupling II and can be directly output from the output end through the wet clutch, when the wet clutch works, the power sequentially passes through the input gear, the idle gear meshed with the input gear, the transmission gear meshed with the idle gear and the output gear meshed with the transmission gear, the power is output from the output end through the wet clutch, and the input component III comprises an input shaft, the input gear fixed on the input shaft through a thermal sleeve, the wet clutch arranged on the input component and a brake unit integrated with the wet clutch; the idler wheel component IV comprises an idler wheel shaft, and an idler wheel supported on the idler wheel shaft through a bearing; the transmission part V comprises a transmission gear, a bearing for supporting the transmission gear on the box body, and an oil pump driven by the transmission gear through a transmission block; the output part VI comprises an output shaft, an output gear supported on the output shaft through a bearing, a wet clutch arranged on the output shaft and an output flange arranged on the output shaft through a spline; the output part VI is supported on the box body and the end cover through a bearing; the operating component VII is mainly composed of an electro-hydraulic control valve and a hydraulic oil circuit system matched with the control, the hydraulic oil circuit system is mainly composed of a working oil circuit and a lubricating oil circuit, and the working oil circuit is controlled by the electro-hydraulic control valve to provide hydraulic oil required by the combination of the wet clutch; the lubricating oil path is mainly integrated on the box body, forced lubricating points are designed at all working points of the transfer case transmission system, and meanwhile, a safety valve device is designed in the lubricating oil path to prevent abnormal work caused by overhigh lubricating oil pressure; the separating plugs are arranged between the outer friction plates of the wet clutch, and the separating plugs ensure that gaps exist between the friction plates of the wet clutch under the disengaging working condition, so that the belt exhaust torque of the wet clutch is reduced. The invention can realize that the power of one engine is distributed to a land running system and a water running system according to the requirement of actual working conditions, but the invention has the following technical defects: 1. because the 2 wet clutches are arranged in a non-coaxial mode, the input of the overwater power system (a spray pump) and the input of the land power system (a transmission shaft is connected with a gearbox) have a height difference, so that the included angle of the transmission shaft between the power distributor and the gearbox is overlarge, and the overall arrangement of the whole vehicle is not facilitated; meanwhile, the technical scheme of the wet clutch has the defects of high cost, heavy weight and large size, so that the whole vehicle is difficult to arrange and the scheme of the medium and heavy off-road vehicle is not facilitated. 2. Because the above-mentioned 2 wet clutches only adopt single electrohydraulic control valve to realize control, at first, select for use wet clutch to have the area to arrange the moment of torsion and make the assembly increase braking function, cause the structure more complicated, secondly, select to use electrohydraulic control valve to have the defect that becomes higher, the technique is more complicated, anti-pollution ability is weak.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a power distributor of an amphibious vehicle and a control method, which not only realize the parallel transmission of two sets of power of land and water, but also effectively reduce the requirement of the weight of the whole vehicle.
The invention discloses a power distributor of an amphibious vehicle, which comprises a shell, wherein at least one input assembly is arranged in the shell and used for inputting power; at least two output assemblies for outputting power to the marine transmission system or/and the land transmission system; the transmission assembly is used for transmitting the power input by the input assembly to the output assembly for output; the two output assemblies are coaxially and symmetrically arranged, and a power control assembly capable of controlling the output power of the output assemblies to be switched on or off according to the running condition of the amphibious vehicle is arranged between each output assembly and the transmission assembly.
In a preferred embodiment of the invention, the power control assembly comprises a synchronizer arranged between the output assembly and the transmission assembly and an operating mechanism used for driving the synchronizer to work; the control mechanism comprises a shifting fork used for connecting and driving the synchronizer to move and a pneumatic control driving assembly used for driving the shifting fork to move.
In a preferred embodiment of the present invention, the pneumatically controlled driving assembly includes a shift shaft disposed in the housing along the axial direction of the synchronizer, and a pneumatically controlled driving assembly disposed outside the housing for driving the shift shaft to displace along the axial direction thereof, and the shift fork is fixedly connected to the middle of the shift shaft.
In a preferred embodiment of the invention, the pneumatic control driving assembly comprises a gear shifting cylinder seat, a gear shifting cylinder block and a gear shifting cylinder cover which are sequentially connected in a sealing manner from the inner side to the outer side of a shell, a sealing chamber is defined by the interior of the gear shifting cylinder seat, the interior of the gear shifting cylinder block and the interior of the gear shifting cylinder, a gear shifting piston is arranged in the gear shifting cylinder block, the sealing chamber is divided into a combination air chamber and a separation air chamber by the gear shifting piston, a first air port communicated with the combination air chamber is arranged on the gear shifting cylinder cover, and a second air port communicated with the separation air chamber is arranged on the gear shifting cylinder seat.
In a preferred embodiment of the invention, an elastic self-locking mechanism for realizing axial positioning of a shifting fork and a transfer case locking switch for locking the shifting fork are further arranged in the shell, the elastic self-locking mechanism comprises elastic steel balls which are arranged on the shell and can stretch out and draw back along a direction perpendicular to the axial direction of the shifting fork, the transfer case locking switch is arranged on the shell and is perpendicular to the shifting fork, and a limiting groove matched with the steel balls is formed in the shifting fork.
In a preferred embodiment of the present invention, the output assembly includes a driving gear, an idler gear and a driven gear, which are located in the same plane and are engaged with each other and in transmission connection with each other, the central symmetry plane of the driving gear, the idler gear and the driven gear are located in the same plane, the driving gear, the idler gear and the driven gear are all supported and connected in the housing through bearings pre-embedded in grooves on the inner wall of the housing, the driving gear is in transmission connection with the input assembly through bolts circumferentially arranged along the driving gear, a needle bearing for supporting the output shaft assembly is arranged on the inner circumferential surface of the driven gear, a spline sleeve capable of rotating synchronously with the driven gear is arranged on the outer circumferential surface of the driven gear, and a synchronizing ring is connected on the spline sleeve.
In a preferred embodiment of the invention, the synchronizer comprises a combination sleeve for driving connection with the output assembly and a synchronizing ring for driving connection with a driven gear of the transmission assembly, the combination sleeve and the synchronizing ring are coaxially arranged, the combination sleeve is connected with the shifting fork, and the synchronizing ring is fixedly connected with the spline sleeve.
In a preferred embodiment of the present invention, the output assembly includes an output shaft disposed in the housing, the output shaft having an outer circumferential surface provided with splines for drivingly connecting a coupling sleeve of a synchronizer, the output shaft being supported by a bearing disposed in the housing and a needle bearing disposed on an inner circumferential surface of the driven gear.
In a preferred embodiment of the present invention, the left casing and the right casing are formed by casting, the left casing and the right casing are fixedly connected by bolts, a transmission assembly installation chamber is included in the left casing and the right casing, and the width of the installation chamber is slightly larger than the thickness of the transmission assembly.
In a preferred embodiment of the present invention, end covers are connected to the outside of the left casing and the right casing, the end covers and the left casing or the right casing enclose an output assembly installation chamber, and the output assembly installation chamber is symmetrically arranged on two sides of the transmission assembly installation chamber.
In a preferred embodiment of the present invention, a manipulating mechanism mounting chamber is disposed below the output assembly mounting chamber, a projection of the transmission assembly mounting chamber and the output assembly mounting chamber in the XOY plane is T-shaped, and a projection of the manipulating mechanism mounting chamber and the transmission assembly mounting chamber in the YOZ plane is L-shaped.
The beneficial effects of the invention are: the invention has the advantages of simple structure, convenient use, compact structure and convenient control; the output assemblies which are symmetrically arranged are designed, and the power control assembly is additionally arranged between the output assemblies and the transmission assembly, so that the height difference between power output to a water power system (a spray pump) and a land power system (a transmission shaft is connected with a gearbox) is effectively eliminated, the included angle of the transmission shaft between the power distributor and the gearbox is effectively reduced, and the overall arrangement of the whole vehicle is facilitated; furthermore, the gear shifting shaft in the shell of the power control assembly is combined with the pneumatic control driving component outside the shell, so that the distributor is effectively convenient to assemble and debug; furthermore, the arrangement mode of the left casing and the right casing which are formed by casting effectively reduces the axial size of the distributor; furthermore, the invention not only effectively reduces the manufacturing cost, but also is more beneficial to the accurate control of the output assembly by adopting a split structure of the synchronizer and the control mechanism; the control mechanism adopts a pneumatic control mechanism, not only has the advantage of strong pollution resistance, but also can drive the synchronizer to work by accurately controlling the displacement of the shifting fork through an air source; furthermore, the elastic self-locking mechanism can effectively ensure the safety of the synchronizer in working; furthermore, the projection of the transmission assembly mounting chamber and the output assembly mounting chamber in the XOY plane is in a T shape, and the projection of the operating mechanism mounting chamber and the transmission assembly mounting chamber in the YOZ plane is in an L shape, so that the power distributor structure is more compact in the X axial direction, and the area occupied by the distributor shell on the vehicle body can be further reduced by the multi-layer arrangement in the Z axial direction, so that the vehicle body using the power distributor is more compact.
Drawings
FIG. 1 is a top cross-sectional view of an amphibious vehicle power splitter of the present invention;
FIG. 2 is a front cross-sectional view of an amphibious vehicle power splitter of the present invention;
FIG. 3 is a control logic diagram of an amphibious vehicle power splitter of the present invention;
in the figure: 1. an end cap; 2. an elastic coupling; 3. an input shaft; 4. a driving gear; 5. an input shaft bearing; 6. an oil pump; 7. a power takeoff interface; 8. an idler pulley; 9. a driven gear; 10. a land-based driveline synchronizer; 11. an output half shaft assembly of the land transmission system; 12. a marine transmission synchronizer; 13. an output half shaft assembly of the water transmission system; 14. a power divider housing; 15. a combined air chamber; 16. a separation gas chamber; 17. a sensor; 18. a shifting fork; 19. an elastic self-locking mechanism; 20. a shift shaft; 21. a shift cylinder block; 22. a shift cylinder block; 23. a shifting cylinder head; 24. a first gas port; 25. a second air port, 26, a shifting piston;
27. a spline housing; 28. a synchronizer ring; 29. a coupling sleeve 30, an output shaft; 31. and (7) oil sealing.
Detailed Description
The invention will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings and by way of illustration of some alternative embodiments of the 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 inventive step, shall fall within the scope of protection of the present invention.
The invention discloses a power distributor of an amphibious vehicle, which mainly has the following functions: the output power of the engine is distributed to a jet pump and a gearbox of the amphibious vehicle as required, a power takeoff interface is arranged and can be used as the power takeoff of other systems, and meanwhile, the power distributor needs to be capable of reasonably distributing the power of the engine to a land power transmission system or a water power transmission system according to the driving requirement; the left shell and the right shell are fixedly connected through bolts, a transmission assembly mounting chamber and an output assembly mounting chamber are arranged in the left shell and the right shell, and the output assembly mounting chambers are symmetrically arranged on two sides of the transmission assembly mounting chamber; at least one input assembly is arranged between the left shell and the right shell, the input assembly comprises but is not limited to an input shaft 3, the input shaft 3 is connected into the shells through an input shaft bearing 5 arranged on the left shell and the right shell, an oil pump 6 used for lubricating the bearing is arranged beside the input shaft bearing 5, one end of the input shaft 3 is connected with an elastic coupling 2 used for connecting a power input device, the other end of the input shaft 3 is provided with a power takeoff interface 7, namely, the power of the input shaft 2 can be transmitted to an external power takeoff through the input shaft, an end cover 1 can be arranged beside the input shaft 3, and the middle part of the input shaft 3 is coaxially connected with a driving gear 4 capable of synchronously rotating with the input shaft in a transmission way; at least one pair of output assemblies is arranged between the left shell and the right shell and comprises an output half shaft assembly 11 of a land transmission system and an output half shaft assembly 13 of a water transmission system, and the output half shaft assembly 11 of the transmission system and the output half shaft assembly 13 of the water transmission system can adopt the same structure, thereby being more beneficial to processing and assembling;
preferably, an output transmission assembly for transmitting power input by the input assembly to the output assembly is installed between the left shell and the right shell, the transmission assembly comprises a driving gear 4, an idler gear 8 and a driven gear 9 which are in transmission connection in sequence, the driving gear 4 is connected with the idler gear 8, bearings of the same type are arranged on two sides of the idler gear 8, the idler gear 8 is connected with the driven gear 9 so as to realize power transmission and reversing, the driving gear 4 is in transmission connection with the input shaft 3, bearings of the same type are arranged on two sides of the driven gear 9 so as to realize symmetrical transmission connection of an output half shaft assembly 11 of a land transmission system and an output half shaft assembly 13 of an overwater transmission system, and an output half shaft assembly 11 of an independent transmission system and an output half shaft assembly 13 of the overwater transmission system are respectively arranged; the driven gear 9 is in transmission connection with an output half shaft assembly 11 of the land transmission system through a synchronizer 10 of the land transmission system, the driven gear 9 is in transmission connection with an output half shaft assembly 13 of the water transmission system through a synchronizer 12 of the water transmission system, and the synchronizer 10 of the transmission system and the synchronizer 12 of the water transmission system can adopt the same structure.
Preferably, the power control assembly comprises a synchronizer arranged between the output assembly and the transmission assembly and an operating mechanism used for driving the synchronizer to work; the operating mechanism comprises a shifting fork 18 for connecting and driving the synchronizer to displace and an air control driving assembly for driving the shifting fork 18 to displace.
Preferably, the pneumatic control driving assembly comprises a shift shaft 20 arranged in the axial direction of the synchronizer and arranged in the shell, and the pneumatic control driving assembly is arranged outside the shell and used for driving the shift shaft 20 to displace in the axial direction of the shift shaft, and the shifting fork 18 is fixedly connected to the middle of the shift shaft 20
Preferably, the pneumatic control driving assembly comprises a shifting cylinder seat 21, a shifting cylinder block 22 and a shifting cylinder cover 23 which are sequentially connected in a sealing manner from the inner side to the outer side of the shell, a sealing chamber is defined by the shifting cylinder seat 21, the shifting cylinder block 22 and the shifting cylinder, a shifting piston 26 is arranged in the shifting cylinder block 22, the sealing chamber is divided into a combination air chamber 15 and a separation air chamber 16 by the shifting piston 26, a first air port 24 communicated with the combination air chamber 15 is arranged on the shifting cylinder cover 23, and a second air port 25 communicated with the separation air chamber 16 is arranged on the shifting cylinder seat 21.
Preferably, the shell is internally provided with an elastic self-locking mechanism 19 for realizing axial positioning of the shifting fork 18 and a transfer case locking switch for locking the shifting fork 18, the elastic self-locking mechanism 19 comprises an elastic steel ball which is arranged on the shell and can stretch out and draw back along the direction perpendicular to the axial direction of the shifting fork 18, the transfer case locking switch is arranged on the shell and is perpendicular to the shifting fork 18, and the shifting fork 18 is provided with a limiting groove matched with the steel ball.
Preferably, the output assembly comprises a driving gear 4, an idler gear 8 and a driven gear 9, the central symmetry planes of which are positioned in the same plane and are in meshed transmission connection with each other, the driving gear 4, the idler gear 8 and the driven gear 9 are all connected in the shell through bearing supports pre-embedded in grooves in the inner wall of the shell, the driving gear 4 is in transmission connection with the input assembly through bolts arranged along the circumferential direction of the driving gear, a needle bearing used for supporting the output shaft 30 assembly is arranged on the inner circumferential surface of the driven gear 9, a spline sleeve 27 capable of rotating synchronously with the driven gear 9 is arranged on the outer circumferential surface of the driven gear 9, and a synchronizing ring 28 is connected on the spline sleeve 27.
Preferably, the synchronizer comprises a coupling sleeve 29 for driving connection with the output assembly and a synchronizing ring 28 for driving connection with the driven gear 9 of the transmission assembly, the coupling sleeve 29 and the synchronizing ring 28 are coaxially arranged, the coupling sleeve 29 is connected with the shifting fork 18, and the synchronizing ring 28 is fixedly connected with the spline sleeve 27.
Preferably, the output assembly includes an output shaft 30 provided in the housing, a spline for driving connection with the coupling sleeve 29 of the synchronizer is provided on an outer circumferential surface of the output shaft 30, and the output shaft 30 is supported by a bearing provided in the housing and a needle bearing provided on an inner circumferential surface of the driven gear 9.
Preferably, the left shell and the right shell are formed by casting and are fixedly connected through bolts, a transmission assembly mounting cavity is arranged in each of the left shell and the right shell, and the width of the mounting cavity is larger than the thickness of the transmission assembly.
Preferably, the left shell and the right shell are connected with end covers, the end covers and the left shell or the right shell enclose an output assembly mounting cavity, and the output assembly mounting cavity is symmetrically arranged on two sides of the transmission assembly mounting cavity.
Preferably, an oil seal 31 is provided on the left housing.
Preferably, the transmission system synchronizer 10 and the marine transmission system synchronizer 12 are controlled independently through the control mechanism, so that power is transmitted to the gearbox assembly or the jet pump assembly, and the design effect of obtaining driving force by the land transmission device and the marine device is achieved. From whole car use angle, when putting through land power transmission, need hang into the neutral gear with the gearbox, when putting through power device on water, the engine need stall or be in the idle state, and power distributor operating mechanism mainly includes: the control structure is divided into manual, electric control, pneumatic control and hydraulic control according to power transmission media, and the control structure comprises a control switch, an air storage cylinder, an electromagnetic valve, an air cylinder, a shifting fork, a self-locking mechanism, a combination sleeve and the like by taking the pneumatic control as an example. The embodiment of the invention is explained by taking an electric control pneumatic control mechanism as an example.
Preferably, the operating mechanism comprises but is not limited to a pneumatic control operating mechanism, the pneumatic control operating mechanism comprises a shell, a shifting fork 18 for connecting a synchronizer and a combination air chamber 15 and a separation air chamber 16 for driving the shifting fork 18 to axially displace are arranged in the shell, the combination air chamber 15 and the separation air chamber 16 are respectively communicated with an air source through a two-position three-way electromagnetic valve, and a sensor 17 for monitoring the axial displacement of the shifting fork 18 is arranged on the shell; .
Preferably, the power distributor judges the control according to three modes of the oil-gas spring and two switching signals, and finally, gear switching is realized through four electromagnetic valves.
Preferably, a control mechanism mounting chamber is arranged below the output assembly mounting chamber, the projection of the transmission assembly mounting chamber and the output assembly mounting chamber in the XOY plane is T-shaped, and the projection of the control mechanism mounting chamber and the transmission assembly mounting chamber in the YOZ plane is L-shaped.
Preferably, an elastic self-locking mechanism 19 for realizing axial positioning of the shifting fork is further arranged in the shell, and the elastic self-locking mechanism 19 comprises an elastic steel ball capable of stretching along a direction perpendicular to the axial direction of the shifting fork and a limiting groove arranged on the shifting fork and matched with the steel ball.
Detecting faults of the power divider: a detection mechanism is required to detect faults of the power distributor, the electromagnetic valve, the state sensor, can communication and the like, and upload corresponding fault information. The following faults need to be detected in real time: 1, can message is overtime or can not be received; 2. after the controller sends a gear shifting signal to the electromagnetic valve, the corresponding sensor does not feed back a corresponding signal; 3. the controller receives the state sensor signal and does not send out a corresponding engine high-low power control signal according to the requirement; 4. a circuit failure of the controller itself.
The invention relates to four typical scene working conditions and a power concrete implementation method of an amphibious vehicle with a power divider.
The power divider has four modes:
the first mode is as follows: the engine power is completely transmitted to the gearbox when driving on land:
the specific implementation method comprises the following steps:
the output power of the engine passes through the elastic coupling, the elastic coupling is connected with the input shaft of the power distributor through splines, the input shaft is integrated with the driving gear, the driving gear transmits the power to the idle gear, the idle gear transmits the power to the driven gear of the power distributor, the driven gear is combined with the splines of the shaft sleeve, the shaft tube is combined with the synchronizer assembly between the gearboxes, the power is transmitted to the transmission shaft and finally input to the gearbox assembly, and the power transmission form of the traditional off-road vehicle is formed, so that the amphibious vehicle becomes an off-road vehicle on land.
And a second mode: when the vehicle runs on water, the engine power is completely transmitted to a spray pump:
the specific implementation method comprises the following steps:
the output power of the engine passes through the elastic coupling, the elastic coupling is connected with the input shaft of the power distributor through splines, the input shaft is integrated with the driving gear, the driving gear transmits the power to the idle gear, the idle gear transmits the power to the driven gear of the power distributor, the driven gear is combined with the shaft sleeve through splines, the shaft tube is combined with the synchronizer assembly between the jet pumps, the power is transmitted to the transmission shaft and finally input to the jet pumps, and the amphibious vehicle becomes a driving mode of a traditional ship and runs on water.
And a third mode: when the working condition is ashore, the power of the engine is simultaneously transmitted to a gearbox and a spray pump:
the specific implementation method comprises the following steps:
the engine output power passes through elastic coupling, elastic coupling and power distributor input shaft are by splined connection, the input shaft integrates with the driving gear, transmit power to idler gear by the driving gear, idler gear transmits power to power distributor driven wheel gear, driven gear and axle sleeve splined connection, the synchronous ware assembly between central siphon and the gearbox combines, the synchronous ware assembly between central siphon and jet pump combines, jet pump output shaft and gearbox output shaft become rigid connection, two synchronizers have acted as the effect of differential mechanism locking, transmit power for gearbox and jet pump simultaneously, when making amphibious vehicle be in the working condition of going to the shore, possess bigger drive power, solve at the easy difficult problem of sinking when going under the topography such as sandy beach, the beach.
And a fourth mode: transmitting the engine power to the gearbox and the jet pump simultaneously (water mooring mode) in the ashore working condition:
the specific implementation method comprises the following steps:
the output power of the engine passes through the elastic coupling, the elastic coupling is connected with the input shaft of the power distributor through a spline, the input shaft is integrated with the driving gear, the driving gear transmits the power to the idler gear, the idler gear transmits the power to the driven gear of the power distributor, the driven gear is combined with the spline of the shaft sleeve, a synchronizer assembly between the shaft tube and the gearbox is not combined, the power of the jet pump is interrupted, the idler gear transmits the power to the driven gear of the power distributor, the driven gear is combined with the spline of the shaft sleeve, the synchronizer assembly between the shaft tube and the gearbox is not combined, and the input power of the gearbox is interrupted.
The invention also discloses a control method of the power distributor of the amphibious vehicle, which comprises the power distributor of the amphibious vehicle, and the power distributor judges that the vehicle is in a driving mode based on the oil-gas spring signal and the power switch signal; and controlling the power distributor of the amphibious vehicle to output power to the water transmission system or/and the land transmission system based on the driving mode.
Preferably, a corresponding gas spring signal is output based on the retraction or the expansion of a vehicle suspension, and a power switch signal is output based on a spray pump power switch and a wheel power switch.
Preferably, the method for judging the driving mode comprises the following steps: when the vehicle suspension is retracted and the jet pump power switch is combined, the vehicle is in a water driving mode; when the vehicle suspension is deployed and the wheel power switches are engaged, then the vehicle is in a land drive mode; when the gas spring is unfolded and the jet pump power switch is combined, the vehicle is in an amphibious driving mode; when the vehicle suspension is retracted and the jet pump power switch and the wheel power switch are both off, the vehicle is in a water berthing mode;
when the vehicle is in a water driving mode or a land driving mode, one and only one of two output assemblies of the amphibious vehicle power divider is conducted to output power; when the vehicle is in an amphibious driving mode, two output assemblies of the amphibious vehicle power divider conduct output power simultaneously; when the vehicle is in the water parking mode, the two output assemblies of the amphibious vehicle power divider simultaneously have no output power, and the engine is in an idle speed.
Preferably, when the vehicle is in a water driving mode or a land driving mode, one and only one of two output assemblies of the amphibious vehicle power divider is conducted to output power; when the vehicle is in an amphibious driving mode, the two output assemblies of the amphibious vehicle power divider conduct output power simultaneously.
Preferably, the power splitter control logic:
the power distributor judges the control according to three modes of the oil-gas spring and two switching signals, and finally realizes gear switching through four electromagnetic valves. Three modes of the gas spring are sent out through the can bus, and the three modes are as follows: land mode, marine mode and amphibious mode.
Wheel power on and off control:
the wheel power connection and disconnection only responds to the wheel power control switch and does not respond to the spray pump power control switch. The power distributor controller identifies the received wheel power control switch signal and the oil-gas spring signal, and then sends power-on or power-off instructions to the electromagnetic valves 1 and 2 so as to control the combination or disconnection of the wheel power. And judging whether the wheel power combination is abnormal or not through a feedback signal of the wheel power state sensor.
And (3) power connection and disconnection control of a spray pump:
the power connection and disconnection of the spray pump only responds to the spray pump power control switch, and does not respond to the wheel power control switch. The controller identifies the received spray pump power control switch signal and the oil-gas spring signal, and then sends power-on or power-off instructions to the electromagnetic valves 3 and 4, so that the combination or disconnection of the spray pump power is controlled. And judging whether the power combination of the spray pump is abnormal or not through a feedback signal of the power state sensor of the spray pump.
Power divider status signal:
the power distributor controller sends the wheel power and the jet pump power which are monitored by the two state sensors to the gas spring system through the can bus in a combined or disconnected state. The power divider controller signals sent over the can bus are related to the received sensor signals as follows:
engine high and low power control signals:
when the state of the power distributor is only wheel power combination or wheel power and spray pump power are combined at the same time, a high-level voltage signal is required to be provided for the engine so as to start the torque limiting function of the engine. When the state of the power distributor is that only the power of the jet pump is combined or the power of the wheel and the jet pump is simultaneously disconnected, the signal is not generated, and the engine is not limited in torque. The relationship between the signals sent by the power divider controller and the received sensor signals is as follows:
the amphibious vehicle with the power distributor can realize multiple additional functions, and how to prevent misoperation and timely switch vehicle power performance comprises an engine ECU, wherein a standard characteristic curve is preset in the engine ECU, when the amphibious vehicle is in a water driving mode or a berth driving mode, the engine ECU obtains output torque according to the standard characteristic curve, a revision characteristic curve is also preset in the engine ECU, and V is a V 1 V is less than or equal to the rotating speed V of the engine 2 In the interval, under the condition of the same engine speed V, the obtained output torque obtained by the engine ECU according to the revised characteristic curve is smaller than the obtained output torque obtained by the engine ECU according to the standard characteristic curve; when the amphibious vehicle is in a land driving mode and an amphibious driving mode, the engine outputs corresponding torque according to a revised characteristic curve, and the standard characteristic curve and the revised characteristic curve are obtained through engine bench test calibration. And the engine ECU judges the driving mode based on a synchronizer signal in the power distributor on the amphibious vehicle. When the vehicle-mounted sensor receives a synchronizer conduction signal between the engine and the land transmission system and a synchronizer disconnection signal between the engine and the water transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is a land driving mode; when the vehicle-mounted sensor receives a synchronizer conducting signal between the engine and the overwater transmission system and a synchronizer disconnecting signal between the engine and the onshore transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is the overwater driving mode; when the vehicle-mounted sensor receives a synchronizer conduction signal between the engine and the land transmission system and a synchronizer conduction signal between the engine and the water transmission system, the vehicle-mounted sensor judgesThe actual driving mode under the condition is switched off to be an amphibious driving mode; and when the vehicle-mounted sensor receives a synchronizer disconnection signal between the engine and the land transmission system and a synchronizer disconnection signal between the engine and the water transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is a berthing driving mode. The engine ECU determines an input driving mode based on the vehicle suspension position signal. When the vehicle-mounted sensor receives a signal that wheels connected to a vehicle suspension are vertical to a horizontal plane, the vehicle-mounted sensor judges that the driving mode is a land driving mode; when the vehicle-mounted sensor receives a signal that wheels connected to a vehicle suspension are parallel to a horizontal plane, the vehicle-mounted sensor judges that the driving mode is a water driving mode; when the vehicle-mounted sensor receives a signal that an included angle is formed between wheels connected to a vehicle suspension and the horizontal plane, the vehicle-mounted sensor judges that the driving mode is an amphibious driving mode or a berth driving mode. The vehicle suspension position signal is obtained by an angle sensor signal arranged on a vehicle body and used for monitoring the distance between a wheel and a horizontal plane. The vehicle suspension position signal is acquired through an angle sensor which is arranged on a vehicle body and used for monitoring the rotation angle of the vehicle suspension. The vehicle suspension position signal is obtained by a displacement sensor arranged on the vehicle body and used for monitoring a cylinder for driving the vehicle suspension to rotate. And the engine ECU converts the corresponding torque output according to the standard characteristic curve or the revised characteristic curve into the fuel injection quantity and the air intake quantity for output.
The method for realizing the anti-misoperation method of the amphibious vehicle with the power distributor comprises the following steps: the system comprises a vehicle control unit VCU, wherein the vehicle control unit VCU judges an actual driving mode based on a synchronizer position signal in a power distributor, and the vehicle control unit VCU judges an input driving mode based on an input vehicle suspension position change signal; and the VCU of the vehicle control unit compares whether the actual running mode is consistent with the input running mode, and if not, the VCU of the vehicle control unit controls the on-land power switch to be switched off and gives an alarm. The VCU of the vehicle controller judges an actual driving mode based on a vehicle suspension position signal, and the VCU of the vehicle controller judges an input driving mode based on an input synchronizer position change signal; and the VCU of the vehicle control unit compares whether the actual running mode is consistent with the input running mode, and if not, the VCU of the vehicle control unit controls the on-water power switch to be switched off and gives an alarm. The power distribution controller collects a land power switch signal and outputs the land power switch signal to the VCU; the oil-gas suspension controller collects vehicle suspension position signals and outputs the vehicle suspension position signals to a vehicle control unit VCU. The method for judging the actual driving mode based on the synchronizer position signal comprises the following steps: when the power distribution controller acquires a synchronizer conduction signal between the engine and the land transmission system and a synchronizer disconnection signal between the engine and the water transmission system and outputs the signals to the vehicle control unit VCU, the vehicle control unit VCU judges that the actual driving mode under the condition is a land driving mode; when the power distribution controller acquires a synchronizer conduction signal between the engine and the overwater transmission system and a synchronizer disconnection signal between the engine and the land transmission system and outputs the signals to the vehicle control unit VCU, the vehicle control unit VCU judges that the actual driving mode under the condition is the overwater driving mode; when the power distribution controller acquires a synchronizer conduction signal between the engine and the land transmission system and a synchronizer conduction signal between the engine and the water transmission system and outputs the signals to the vehicle control unit VCU, the vehicle control unit VCU judges that the actual driving mode under the condition is the land and water driving mode; when the power distribution controller acquires a synchronizer disconnection signal between the engine and the land transmission system and a synchronizer disconnection signal between the engine and the water transmission system and outputs the signals to the vehicle control unit VCU, the vehicle control unit VCU judges that the actual driving mode under the condition is the berthing driving mode.
The method for judging the input driving mode based on the input vehicle suspension position change signal comprises the following steps: when the input vehicle suspension position change signal requires that the wheels are vertical to the horizontal plane, the vehicle-mounted sensor judges that the driving mode is a land driving mode; when the input vehicle suspension position change signal requires that the wheels are parallel to the horizontal plane, the vehicle-mounted sensor judges that the driving mode is a water driving mode; when the input vehicle suspension position change signal requires that the wheels and the horizontal plane form an included angle, the vehicle-mounted sensor judges that the driving mode is an amphibious driving mode or a berth driving mode. The method for judging the input driving mode based on the vehicle suspension position signal comprises the following steps: when the oil-gas suspension controller collects signals, which are vertical to a horizontal plane, of wheels connected to a vehicle suspension and outputs the signals to the vehicle control unit VCU, the vehicle control unit VCU judges that the driving mode is a land driving mode; when the oil-gas suspension controller collects signals, which are parallel to a horizontal plane, of wheels connected to a vehicle suspension and outputs the signals to the VCU, the VCU judges that the driving mode is an overwater driving mode; when the oil-gas suspension controller collects a signal that an included angle is formed between a wheel connected to a vehicle suspension and a horizontal plane and outputs the signal to the vehicle control unit VCU, the vehicle control unit VCU judges that the driving mode is an amphibious driving mode or a land-berthing driving mode. The method for judging the actual driving mode based on the synchronizer position change signal comprises the following steps: when the synchronizer position change signal requires that the synchronizer between the engine and the land transmission system is switched on and the synchronizer between the engine and the water transmission system is switched off, the VCU of the vehicle control unit judges that the actual driving mode under the condition is the land driving mode; when the synchronizer position change signal requires that the synchronizer between the engine and the overwater transmission system is switched on and the synchronizer between the engine and the land transmission system is switched off, the VCU of the vehicle control unit judges that the actual driving mode under the condition is the overwater driving mode; when the synchronizer position change signal requires the conduction of a synchronizer between the engine and the land transmission system and the conduction of a synchronizer between the engine and the water transmission system, the VCU of the vehicle control unit judges that the actual driving mode under the condition is an amphibious driving mode; when the synchronizer position change signal requires that the synchronizer between the engine and the land drive system is disconnected and the synchronizer between the engine and the water drive system is disconnected, the vehicle control unit VCU judges that the actual driving mode under the condition is the berthing driving mode.
It should be understood that the above-mentioned embodiments are merely exemplary of the present invention, and not restrictive, and that any modifications, combinations, substitutions, improvements, etc. made within the spirit and scope of the present invention are included in the present invention.
Claims (7)
1. An amphibious vehicle power divider is characterized in that: comprises a shell, wherein the shell is internally provided with
At least one input assembly for inputting power;
at least two output assemblies for outputting power to the marine transmission system or/and the land transmission system;
the transmission assembly is used for transmitting the power input by the input assembly to the output assembly for output;
the two output assemblies are coaxially and symmetrically arranged, and a power control assembly capable of controlling the output power of the output assemblies to be switched on or off according to the running condition of the amphibious vehicle is arranged between each output assembly and the transmission assembly; the power control assembly comprises a synchronizer arranged between the output assembly and the transmission assembly and an operating mechanism used for driving the synchronizer to work; the control mechanism comprises a shifting fork for connecting and driving the synchronizer to move and a pneumatic control driving assembly for driving the shifting fork to move; the pneumatic control driving assembly comprises a gear shifting cylinder seat, a gear shifting cylinder block and a gear shifting cylinder cover which are sequentially connected in a sealing manner from the inner side to the outer side of a shell, a sealing chamber is defined by the gear shifting cylinder seat, the gear shifting cylinder block and the gear shifting cylinder, a gear shifting piston is arranged in the gear shifting cylinder block, the sealing chamber is divided into a combination air chamber and a separation air chamber by the gear shifting piston, a first air port communicated with the combination air chamber is formed in the gear shifting cylinder cover, and a second air port communicated with the separation air chamber is formed in the gear shifting cylinder seat; the transfer case locking switch is arranged on the shell and is perpendicular to the shifting fork, and the shifting fork is provided with a limiting groove matched with the steel ball;
the power splitter has four modes:
land driving mode: the engine power is completely transmitted to the gearbox when driving on land: the specific implementation method comprises the following steps: the output power of the engine passes through an elastic coupling, the elastic coupling is connected with an input shaft of a power distributor through a spline, the input shaft is integrated with a driving gear, the driving gear transmits the power to an idle gear, the idle gear transmits the power to a driven gear of the power distributor, the driven gear is combined with a shaft sleeve spline, an axle tube is combined with a synchronizer assembly between gearboxes, the power is transmitted to a transmission shaft and finally input to the gearbox assembly, and the power transmission form of the traditional off-road vehicle is formed, so that the amphibious vehicle becomes an onshore vehicle;
the water driving mode: when the vehicle runs on water, the engine power is completely transmitted to a spray pump: the specific implementation method comprises the following steps: the output power of the engine passes through an elastic coupling, the elastic coupling is connected with an input shaft of a power distributor through a spline, the input shaft is integrated with a driving gear, the driving gear transmits the power to an idler gear, the idler gear transmits the power to a driven gear of the power distributor, the driven gear is combined with a shaft sleeve spline, an axle tube is combined with a synchronizer assembly between the jet pumps, the power is transmitted to a transmission shaft and finally input to the jet pumps, and the jet pumps are in a traditional ship driving mode, so that the amphibious vehicle runs on water;
an amphibious vehicle mode: when the working condition is ashore, the power of the engine is simultaneously transmitted to a gearbox and a spray pump: the specific implementation method comprises the following steps: the output power of an engine passes through an elastic coupling, the elastic coupling is connected with an input shaft of a power distributor through a spline, the input shaft is integrated with a driving gear, the driving gear transmits the power to an idler gear, the idler gear transmits the power to a driven gear of the power distributor, the driven gear is combined with a shaft sleeve spline, a shaft tube is combined with a synchronizer assembly between gearboxes, the shaft tube is combined with the synchronizer assembly between jet pumps, an output shaft of the jet pump and an output shaft of the gearboxes are in rigid connection, the two synchronizers serve as the locking function of a differential mechanism and transmit the power to the gearboxes and the jet pumps at the same time, so that the amphibious vehicle has larger driving force when being in an ashore working condition, and the problem that the amphibious vehicle is easy to sink when running on terrains such as beach and beach is solved;
the water mooring mode comprises the following steps: when the working condition is ashore, the power of the engine is simultaneously transmitted to a gearbox and a spray pump: the specific implementation method comprises the following steps: the output power of an engine passes through an elastic coupling, the elastic coupling is connected with an input shaft of a power distributor through a spline, the input shaft is integrated with a driving gear, the driving gear transmits the power to an idler gear, the idler gear transmits the power to a driven gear of the power distributor, the driven gear is combined with a shaft sleeve spline, a synchronizer assembly between an axle tube and a gearbox is not combined, the power of a jet pump is interrupted, the idler gear transmits the power to the driven gear of the power distributor, the driven gear is combined with the shaft sleeve spline, the synchronizer assembly between the axle tube and the gearbox is not combined, and the input power of the gearbox is interrupted;
the control method of the power distributor of the amphibious vehicle comprises the steps that the power distributor of the amphibious vehicle judges that the vehicle is in a driving mode based on an oil-gas spring signal and a power switch signal; controlling the power distributor of the amphibious vehicle to output power to the water transmission system or/and the land transmission system based on the driving mode; outputting corresponding gas spring signals based on the retraction or the expansion of a vehicle suspension, and outputting power switch signals based on a spray pump power switch and a wheel power switch;
the method for judging the driving mode comprises the following steps: when the vehicle suspension is retracted and the jet pump power switch is combined, the vehicle is in a water traveling mode; when the vehicle suspension is deployed and the wheel power switches are engaged, then the vehicle is in a land drive mode; when the gas spring is unfolded and the jet pump power switch is combined, the vehicle is in an amphibious driving mode; when the vehicle suspension is retracted and the spray pump power switch and the wheel power switch are both off, the vehicle is in a water berthing mode;
when the vehicle is in a water driving mode or a land driving mode, one and only one of two output assemblies of the amphibious vehicle power divider is conducted to output power; when the vehicle is in an amphibious driving mode, two output assemblies of the amphibious vehicle power divider conduct output power simultaneously; when the vehicle is in a water parking mode, two output assemblies of the amphibious vehicle power divider simultaneously have no output power, and the engine is in an idle speed;
power splitter control logic:
the power distributor judges the control according to three modes of the oil-gas spring and two switching signals, and finally realizes gear switching through four electromagnetic valves; three modes of the gas spring are sent out through the can bus, and the three modes are as follows: land mode, marine mode and amphibious mode;
wheel power on and off control:
the wheel power connection and disconnection only responds to the wheel power control switch, and does not respond to the spray pump power control switch; the power distributor controller identifies the received wheel power control switch signal and the oil-gas spring signal, and then sends power-on or power-off instructions to the first electromagnetic valve and the second electromagnetic valve so as to control the combination or disconnection of the wheel power; judging whether the wheel power combination is abnormal or not according to a feedback signal of the wheel power state sensor;
and (3) power connection and disconnection control of a spray pump:
the power connection and disconnection of the spray pump only responds to the spray pump power control switch, and does not respond to the wheel power control switch; the controller identifies the received spray pump power control switch signal and the oil-gas spring signal, and then sends power-on or power-off instructions to the three and four electromagnetic valves so as to control the combination or disconnection of the spray pump power; judging whether the power combination of the spray pump is abnormal or not according to a feedback signal of a spray pump power state sensor;
power divider status signal:
the power distributor controller sends the wheel power and the spray pump power which are monitored by the two state sensors to the gas spring system through the can bus in a combined or disconnected state;
engine high and low power control signals:
when the state of the power distributor is that only wheel power is combined or wheel power and jet pump power are combined at the same time, a high-level voltage signal is required to be provided for the engine so as to start the torque limiting function of the engine; when the power distributor is in a state of only combining the power of the jet pump or simultaneously disconnecting the power of the wheel and the jet pump, the signal is not generated, and the engine is not limited to be twisted;
the method comprises the steps that a standard characteristic curve is preset in an engine ECU, when the amphibious vehicle is in a water driving mode or a landing driving mode, the engine ECU obtains output torque according to the standard characteristic curve, a revision characteristic curve is also preset in the engine ECU, and the obtained output torque obtained by the engine ECU according to the revision characteristic curve is smaller than the obtained output torque obtained by the engine ECU according to the standard characteristic curve in the same engine speed V within the interval that V _1 is not less than the engine speed V is not less than V _ 2; when the amphibious vehicle is in a land driving mode and an amphibious driving mode, the engine outputs corresponding torque according to a revised characteristic curve, and the standard characteristic curve and the revised characteristic curve are obtained through engine bench test calibration; the engine ECU judges a driving mode based on a synchronizer signal in a power distributor on the amphibious vehicle; when the vehicle-mounted sensor receives a synchronizer conducting signal between the engine and the land transmission system and a synchronizer disconnecting signal between the engine and the water transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is the land driving mode; when the vehicle-mounted sensor receives a synchronizer conducting signal between the engine and the overwater transmission system and a synchronizer disconnecting signal between the engine and the onshore transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is the overwater driving mode; when the vehicle-mounted sensor receives a synchronizer conducting signal between the engine and the land transmission system and a synchronizer conducting signal between the engine and the water transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is the land driving mode; when the vehicle-mounted sensor receives a synchronizer disconnection signal between the engine and the land transmission system and a synchronizer disconnection signal between the engine and the water transmission system, the vehicle-mounted sensor judges that the actual driving mode under the condition is a berthing driving mode; the engine ECU judges and inputs a driving mode based on a vehicle suspension position signal; when the vehicle-mounted sensor receives a signal that wheels connected to a vehicle suspension are vertical to a horizontal plane, the vehicle-mounted sensor judges that the driving mode is a land driving mode; when the vehicle-mounted sensor receives a signal that wheels connected to a vehicle suspension are parallel to a horizontal plane, the vehicle-mounted sensor judges that the driving mode is a water driving mode; when the vehicle-mounted sensor receives a signal that wheels connected to a vehicle suspension form an included angle with the horizontal plane, the vehicle-mounted sensor judges that the driving mode is an amphibious driving mode or a berth driving mode; the vehicle suspension position signal is obtained by an angle sensor which is arranged on a vehicle body and used for monitoring the distance between a wheel and a horizontal plane; the vehicle suspension position signal is obtained through an angle sensor which is arranged on a vehicle body and used for monitoring the rotation angle of the vehicle suspension; the vehicle suspension position signal is obtained through a displacement sensor arranged on a vehicle body and used for monitoring a cylinder for driving a vehicle suspension to rotate; and the engine ECU converts the corresponding torque output according to the standard characteristic curve or the revised characteristic curve into the fuel injection quantity and the air intake quantity for output.
2. An amphibious vehicle power splitter according to claim 1, in which: the pneumatic control driving assembly comprises a gear shifting shaft arranged in the shell along the axial direction of the synchronizer and a pneumatic control driving assembly arranged outside the shell and used for driving the gear shifting shaft to move along the axial direction of the gear shifting shaft, and the shifting fork is fixedly connected to the middle of the gear shifting shaft.
3. An amphibious vehicle power splitter according to claim 1, in which: the output assembly comprises a driving gear, an idler gear and a driven gear, wherein the central symmetry planes of the driving gear, the idler gear and the driven gear are positioned in the same plane and are in meshed transmission connection, the driving gear, the idler gear and the driven gear are all connected in the shell through bearing supports pre-embedded in grooves in the inner wall of the shell, the driving gear is in transmission connection with the input assembly through bolts circumferentially arranged along the driving gear, a needle bearing used for supporting the output shaft assembly is arranged on the inner circumferential surface of the driven gear, a spline sleeve capable of synchronously rotating with the driven gear is arranged on the outer circumferential surface of the driven gear, and a synchronizing ring is connected onto the spline sleeve.
4. An amphibious vehicle power splitter according to claim 1, in which: the synchronizer comprises a combination sleeve and a synchronizing ring, wherein the combination sleeve is used for being in transmission connection with the output assembly, the synchronizing ring is used for being in transmission connection with a driven gear of the transmission assembly, the combination sleeve and the synchronizing ring are coaxially arranged, the combination sleeve is connected with the shifting fork, and the synchronizing ring is fixedly connected with the spline sleeve.
5. An amphibious vehicle power splitter according to claim 1, in which: the output assembly comprises an output shaft arranged in the shell, a spline for driving and connecting a combination sleeve of the synchronizer is arranged on the outer peripheral surface of the output shaft, and the output shaft is supported by a bearing arranged in the shell and a needle bearing arranged on the inner peripheral surface of the driven gear.
6. An amphibious vehicle power splitter according to claim 1, in which: the left shell and the right shell are fixedly connected through bolts, a transmission assembly mounting chamber is arranged in the left shell and the right shell, and the width of the mounting chamber is larger than the thickness of the transmission assembly; the left shell and the right shell are connected with end covers, the end covers and the left shell or the right shell enclose an output assembly mounting cavity, and the output assembly mounting cavity is symmetrically arranged on two sides of the transmission assembly mounting cavity.
7. An amphibious vehicle power splitter according to claim 6, in which: and a control mechanism mounting chamber is arranged below the output assembly mounting chamber, the projection of the transmission assembly mounting chamber and the output assembly mounting chamber in an XOY plane is T-shaped, and the projection of the control mechanism mounting chamber and the transmission assembly mounting chamber in an YOZ plane is L-shaped.
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| CN202110330413.6A CN113007316B (en) | 2021-03-22 | 2021-03-22 | Power distributor of amphibious vehicle |
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| CN202110330413.6A CN113007316B (en) | 2021-03-22 | 2021-03-22 | Power distributor of amphibious vehicle |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1119872A (en) * | 1966-03-12 | 1968-07-17 | Brown Gear Ind | An improved transfer gearbox |
| US4040309A (en) * | 1976-02-17 | 1977-08-09 | International Harvester Company | Automatic two-speed transfer case |
| NL8103211A (en) * | 1980-08-04 | 1982-03-01 | Rockwell International Corp | INTERMEDIATE GEARBOX. |
| US6000294A (en) * | 1997-11-15 | 1999-12-14 | Eaton Corporation | System and method for fluid assisted shifting of mechanical transmissions |
| CN201729035U (en) * | 2009-08-31 | 2011-02-02 | 泰安航天特种车有限公司 | Amphibious vehicle |
| CN202545705U (en) * | 2012-04-28 | 2012-11-21 | 义乌西贝虎特种车辆有限公司 | Multi-output-shaft speed changer |
| CN111207182B (en) * | 2020-01-24 | 2024-05-17 | 杭州前进齿轮箱集团股份有限公司 | Clutch transfer case for amphibious vehicle |
| CN212564252U (en) * | 2020-05-31 | 2021-02-19 | 益阳天华两栖车艇有限公司 | Power distribution device of amphibious vehicle and boat |
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