CN115257265A - 8x8 light high-speed amphibious vehicle - Google Patents

Abstract

The invention discloses an 8x8 light high-speed amphibious vehicle which is scientifically and integrally integrated by six system modules, namely a frame system, a power system, a hull system, a steering system, a hydraulic-electric system, a control system and the like. The light high-speed amphibious vehicle adopts a plurality of advanced technologies such as a titanium alloy vehicle frame assembly, a carbon fiber hull shell, a wheel lifting device, a rotary hydrofoil device, an EPP foaming floating body and the like, does not need to be sealed, can enable a rescue boat to be always suspended on the water surface and never sink, and has the remarkable technical characteristics of high-speed safe operation on the water surface, amphibious maneuverability, excellent and super-crowd passing capacity of mudflat and the like, so that the light high-speed amphibious vehicle can better adapt to and meet various urgent needs of emergency management departments at home and abroad and military parties.

Description

8x8 light high-speed amphibious vehicle

Technical Field

The invention relates to a general water surface yacht and an off-road vehicle, in particular to an 8x8 light high-speed amphibious vehicle which can float on the water surface and never sink and can be widely applied to emergency rescue and air-drop amphibious special war.

Background

In order to solve the problems that the existing rescue boat has poor puncture resistance, poor wind and wave resistance, large influence of the arrival speed on the environment and the like in flood disasters and water area accident rescue, the national science and technology department issues 'instruction for the 2022 annual project of important natural disaster prevention and control and public safety key special items', and requires vigorous research on the structural stability of the rescue boat and the intelligent switching technology of water area land scene power, so that the self-balancing amphibious rescue boat is developed at an accelerated speed.

Although the amphibious vehicle has a development history of more than 200 years, the water surface running speed, the global safe running and the amphibious efficient maneuvering are three major problems which are troubling the development of the amphibious vehicle at home and abroad for a long time and seriously affect the survival capability and the operational efficiency of the amphibious vehicle; the 'water surface running speed' is a primary index for measuring the comprehensive performance of the amphibious vehicle, and relates to light-weight integration of the whole vehicle, reasonable matching of engine power, combined application of key technologies of resistance reduction and speed increase, such as a ship-shaped structure and a wheel lifting device, and the like; the 'safe operation on the water surface' is directly related to the viability of the amphibious vehicle after the hull is scratched when the amphibious vehicle operates on the water surface; the amphibious efficient maneuvering vehicle directly influences the launching landing performance and the mud flat passing capacity of the amphibious vehicle, and relates to scientific arrangement of key components of a vehicle frame main body structure, a differential self-locking device, a suspension mechanism form and the like; obviously, the complete solving of the above problems is a complex system engineering, firstly, the top layer design (of a comprehensive system) of a new vehicle is related to the research and development, secondly, the scientific selection of host machine components (existing and newly developed) and advanced materials is related to, and thirdly, the innovative application of advanced manufacturing technology is related to; through deep research and practice, the applicant has now mastered the key common technology for developing light high-speed amphibious vehicles.

The invention introduces an invention patent with the patent number of ZL201710682781.0 and the invention name of 'an amphibious assault vehicle', which is proposed by the applicant in 2017, 08 and 10.0, and the patent technology relates to an amphibious vehicle, but does not refer to the technical scheme of 'installing a combined buoyancy tank at the bottom of a vehicle body and enabling the vehicle to float on the water surface and never sink'; the technical scheme that a movable buoy is additionally arranged to increase the buoyancy of a ship body doubly and improve the rescue stability on the water surface is not mentioned; the technical scheme that the problems of light weight of the whole vehicle, seawater corrosion prevention and the like are fundamentally solved by adopting a titanium alloy frame assembly and a rolling prevention frame assembly, and adopting an aluminum magnesium alloy or carbon fiber hull shell and a vehicle body covering piece is also not mentioned.

The invention also introduces a relevant core technology and a whole vehicle manufacturing scheme which are provided by the applicant in 2018, 11, 12 and have the patent number ZL201811338063.2 and the invention name of a 6X6 light amphibious vehicle invention patent; the invention relates to an 8-wheel driven amphibious vehicle, the application range and the comprehensive performance of which are greatly changed and are completely different from those of the 8-wheel driven amphibious vehicle, the invention greatly improves the frame assembly, the power system, the steering system, the buoyancy system, the hull structural form and the like related to the 6X6 light amphibious vehicle, and the selected engine and key components are also obviously changed.

The invention also introduces a frame manufacturing technology which is provided by the applicant in 2017, 05 and 02, has a patent number of ZL201710300573.X and is named as a multi-wheel amphibious vehicle frame assembly, and relates to a frame manufacturing technology, wherein the frame manufacturing technology is better applied to an 8x8 amphibious vehicle, but the selected materials and the processing method of the frame manufacturing technology are obviously changed along with the continuous improvement of the comprehensive performance of the whole vehicle, and the invention greatly improves the main body structure of the multi-wheel amphibious vehicle frame assembly.

The invention also introduces a patent technology which is proposed by the applicant in 2018, 10 and 04 and has the patent number ZL201811164201.X and the invention name of 'a power transmission system of a multi-wheel driven amphibious vehicle', and key components and connection and installation modes of the key components are greatly improved.

The invention also introduces a patent technology which is proposed by the applicant on the 04 th year 05 and 2017 and has the patent number ZL201710297795.0 and the invention name of 'a wheel lifting device', and the invention greatly improves key components and the connection and installation mode thereof.

The invention also introduces a patent technology which is provided by the applicant at 2021, 07/01 and has the patent number ZL202121485083.X and the invention name of a hydrofoil device adaptive to light amphibious vehicles, and greatly improves the key components and the connection and installation modes thereof.

The invention also introduces a patent technology which is proposed by the applicant in 2017, 04, 29 and has the patent number of ZL201710297753.7 and the name of 'a folding movable buoy device', and key components and connection and installation modes thereof are greatly improved.

The invention also introduces the basic principle and the processing method related to the patent No. ZL202021947101.7 and the invention name 'a buoyancy system of an amphibious vehicle' which are provided by the applicant at 09/2020, and greatly improves and further perfects the shape and the size of the buoyancy system.

The invention also introduces the basic principle and the processing method which are provided by the applicant on the 05 and 02 months in 2017, have the patent number of ZL201710300318.5 and the invention name of 'an anti-roll guard bar assembly', and greatly improve and further perfect the shape and the size of the anti-roll guard bar assembly.

The invention also introduces the basic principle related to the patent with the patent number of ZL201922241726.5 and the invention name of 'a drag reduction and speed increase device for amphibious vehicle and boat' provided by the applicant in 2019, 12, 15, and greatly improves a plurality of key parts.

The invention also introduces the basic principle related to the patent number ZL202020053093.5 with the invention name of 'a double-flow speed difference steering device' which is proposed by the applicant at 10.01/10/2020, and greatly improves a plurality of key components in the invention.

The invention also introduces the basic principle related to a utility model patent with the patent number of ZL201811164202.4 and the invented name of 'a multipurpose integrated transmission case', which is proposed by the applicant in 2018, 10, 04, and greatly improves a plurality of key components in the utility model patent.

The invention also refers to an invention patent with the patent application number of 201711255017.1 and the invention name of 'a functional hull adaptive to an amphibious vehicle', which is proposed by the applicant at 2017, 12 and 02; in the invention patent of this application, the technical features of this "functional hull" are described and drawn in detail by the applicant.

The invention also introduces the patent technology which is filed by the applicant on 31/05/2020 and has the patent number ZL and the name of 'a power distribution device of an amphibious vehicle and boat'; in this patent, the applicant has described and drawn in detail the technical features of this "power distribution device".

The invention also refers to a patent technology which is proposed by the applicant at 2021, 07/01, with the patent number being ZL 202121484569.1 and the invention name being 'an external ducted propeller assembly'; in this patent, the applicant describes and plots the technical features of this "ducted propeller assembly" in detail.

Disclosure of Invention

The invention aims to provide an 8x8 light high-speed amphibious vehicle which can safely run on the water surface at a high speed and is widely suitable for emergency rescue and air-drop amphibious special warfare, and the hull of the multi-wheel light high-speed amphibious vehicle with a brand-new concept does not need to be sealed, so that the traditional concept of people on amphibious vehicles is thoroughly subverted; by adopting a plurality of advanced technologies such as a frame assembly made of titanium alloy materials, a jet pump type guide pipe propeller, a high-speed sliding type hull shell and a wheel deflection folding lifting device, and orderly assembling a combined floating box filled with EPP foam at the bottom of a hull, the 8x8 light high-speed amphibious vehicle can suspend on the water surface and never submerge at any time, so that the safety and reliability of the water surface operation of the vehicle are obviously improved, the finishing quality is greatly reduced, and the volume of the hull immersed below the water surface is reduced to the minimum limit, so that the water resistance is obviously reduced, the vehicle can perfectly realize the water surface high-speed operation, the vehicle can be widely applied to three fields of emergency management, amphibious special war and leisure sports, and the requirements of emergency rescue, fire fighting, flood fighting, disaster relief, air drop special war, urgent landing, duty patrol, ice breaking prevention, ecological tourism, leisure and competitive entertainment, amphibious sports and the like are better met.

Through systematic research and engineering design, the main performance data to be achieved and exceeded by the invention are: the overall dimension is less than or equal to 6x2.2x1.9m, the preparation quality is less than or equal to 1800kg, the rated load is more than or equal to 700kg, the draught depth is less than or equal to 0.4m, the wind resistance grade is more than or equal to 8, the wave resistance height is more than or equal to 2.0m, the advancing speed of a water area is more than or equal to 55km/h, the land running speed is more than or equal to 90km/h, the climbing capacity is more than or equal to 25 degrees, the ditch crossing width is more than or equal to 1.2m, the obstacle crossing height is more than or equal to 350m, and the balance can be controlled on the water surface in case of extreme danger.

The technical problems to be actually solved by the invention are as follows: how to apply the whole vehicle module integration technology and install the 8x8 light high-speed amphibious vehicle which does not need to be sealed and can float on the water surface never to sink and can completely meet all examination indexes specified in the instruction of 2022 annual item declaration guideline for major natural disaster prevention and control and public safety key special item of the national ministry of science and technology and the specification of army equipment test and identification of the central military committee equipment.

The invention adopts the following technical scheme to achieve the purpose of the invention.

An 8x8 light high-speed amphibious vehicle is scientifically and integrally integrated by six system modules, namely a frame system module 100, a power system module 200, a hull system module 300, a steering system module 400, a hydro-electric system module 500, a control system module 600 and the like, and can float on the water surface and never sink; according to the overall technical design plan, the six system modules are combined differently, and the light high-speed amphibious vehicles of various series models such as 8x8, 8x6, 8x4, 6x6 and 6x4 can be developed rapidly and at low cost.

The frame system module 100 includes a frame assembly 110, a suspension mechanism 150, a roll cage assembly 160, and an equipment cage 170.

The frame assembly 110 comprises an upper annular frame 111, an upper cross beam 112, a lower annular frame 113, a lower cross beam 114, an inclined strut 115, a side vertical beam 116, a side vertical bar 117, a front vertical beam 119, a rear vertical beam 120, a rotating arm seat 121, an upper swing arm seat 122, a lower swing arm seat 123, an engine seat 124, a power distribution box seat 125, a speed difference steering box seat 126, an anti-rolling frame seat 127, a rotary hydrofoil seat 128, a movable floating cylinder seat 129, a hydraulic cylinder seat 130, a hull assembly plate 132, a steering column seat 133, a propeller seat 134 and a mounting seat 135.

The upper annular frame 111 is formed by sequentially welding a titanium alloy CT4 or aluminum magnesium alloy 5083 plate into a whole under the control of a tool after being cut and stamped; the upper cross beam 112 is formed by cutting and punching titanium alloy CT4 or aluminum magnesium alloy 5083 plates and then is orderly welded on the preset position of the upper annular frame 111 under the control of a tool; the lower annular frame 113 is formed by sequentially welding a titanium alloy CT4 or aluminum magnesium alloy 5083 plate into a whole under the control of a tool after being cut and stamped; fourthly, the lower cross beam 114 is formed by cutting and punching titanium alloy CT4 or aluminum magnesium alloy 5083 plates and then is orderly welded on the preset position of the lower annular frame 113 under the control of a tool; the inclined strut 115 is formed by cutting and punching a titanium alloy CT4 or aluminum magnesium alloy 5083 plate and then sequentially welded on the preset position of the lower annular frame 113 in a crossed mode under the control of a tool; the (sixteen) side vertical beams 116 are formed by cutting and punching titanium alloy CT4 or aluminum magnesium alloy 5083 plates and then are orderly welded on preset positions on two sides of the upper annular frame 111 and the lower annular frame 113 respectively under the control of a tool; (eight) the side vertical bars 117 are respectively welded on the preset positions in the middle of the corresponding side vertical beams 116 in order under the control of a tool after being cut and stamped by a titanium alloy CT4 or aluminum magnesium alloy 5083 plate; the front vertical beam 119 is formed by cutting and punching a titanium alloy CT4 or aluminum magnesium alloy 5083 plate and then sequentially welded on the preset positions of the front parts of the upper annular frame 111 and the lower annular frame 113 respectively under the control of a tool; the rear vertical beam 120 is formed by cutting and punching titanium alloy CT4 or aluminum magnesium alloy 5083 plates and then is orderly welded at the preset positions at the rear parts of the upper annular frame 111 and the lower annular frame 113 under the control of a tool.

The swivel arm seat 121 is a structural member, and the (eight) swivel arm seats 121 are fixedly arranged on the preset positions of the upper annular frame 111 in order through bolts; the upper swing arm base 122 is a structural member, and the (sixteen) upper swing arm bases 122 are respectively and sequentially fixedly arranged on the preset positions of the (eight) side vertical beams 116 through bolts; the lower swing arm base 123 is a structural member, and the (sixteen) lower swing arm bases 123 are respectively and fixedly arranged at preset positions on two sides of the lower annular frame 113 in order through bolts; the engine bases 124 are structural members, and the engine bases 124 are fixedly arranged on preset positions of two inner sides of the middle rear part of the upper annular frame 111 in order through bolts; the power distribution box bases 125 are structural members, and the two power distribution box bases 125 are respectively and fixedly arranged on the preset positions of the lower cross beam 114 in the middle of the lower annular frame 113 in order through bolts; the differential steering box base 126 is a titanium alloy CT4 or aluminum-magnesium alloy 5083 plate stamping part, and the differential steering box base 126 is fixedly arranged on the preset positions of the lower beam 114 in order through bolts; the anti-rolling frame seats 127 are structural members, and the anti-rolling frame seat(s) 127 are fixedly arranged at preset positions on the periphery of the outer part of the upper annular frame 111 in order through bolts; the rotary hydrofoil seats 128 are structural members, and the hydrofoil assembly seats 128 are fixedly arranged at preset positions on two sides of the rear part of the lower annular frame 3 in a symmetrical mode through bolts in order; the buoy bases 129 are structural members, and the buoy assembly bases 129 are fixedly arranged at preset positions on two sides of the middle part of the lower annular frame 113 in a symmetrical mode through bolts in order; the hydraulic cylinder base 130 is a structural member, and (eight) the hydraulic cylinder base 130 is fixedly arranged on the preset positions on two sides of the lower annular frame 113 in order through bolts; the ship body assembling plates 132 are structural members, and the ship body assembling plates 132 are sequentially and fixedly arranged at preset positions around the upper annular frame 111 through bolts; the steering column base 133 is sequentially and fixedly arranged at a preset position in the front of the upper annular frame 111; the propeller seats 134 are orderly welded at a preset position at the rear part of the lower annular frame 113; the (two) mounting seats 135 are sequentially welded to predetermined positions at the rear of the upper ring frame 111.

All the components are orderly welded into the whole body of the frame assembly 110 under the control of the tool clamp; frame assembly 110 is sequentially secured in a predetermined position within hull shell 310 by hull mounting plate(s) 132 and bolts.

The suspension mechanism 150 consists of a shock absorber assembly 151, an upper swing arm 152, a lower swing arm 153, a rotating arm 154 and an electro-hydraulic cylinder 155; wherein, the shock absorber assembly 151, the upper swing arm 152, the lower swing arm 153 and the two ends of the electro-hydraulic cylinder 155 are all provided with connecting holes, one end of the rotating arm 154 is provided with a connecting hole, the other end is provided with a spline hole, and the middle part of the lower swing arm 153 is provided with a shock absorber assembling mandrel; one ends of the rotating arms (154) are orderly arranged at the two ends of the spline shaft respectively, and the other ends of the rotating arms (154) are orderly connected with a connecting hole at the upper end of the shock absorber assembly (151) and a connecting hole at the upper end of the electric hydraulic cylinder (155); the spline shafts are orderly arranged on the rotating arm seat 121; the connecting holes at the lower end of the shock absorber assembly(s) 151 are sequentially connected with the corresponding mounting holes on the lower swing arm 153 through pin shafts respectively; connecting holes at the lower two ends of the electro-hydraulic cylinder(s) 155 are respectively and orderly sleeved on the corresponding hydraulic cylinder bases 130 through pin shafts; the connecting holes at the upper ends of the upper swing arm 152 and the lower swing arm 153 are respectively and orderly connected with the corresponding upper swing arm seat 122 and the lower swing arm seat 123 through pin shafts, and the connecting holes at the lower ends of the upper swing arm 152 and the lower swing arm seat are respectively and orderly assembled with the connecting holes at the upper end and the lower end of the hub connecting plate assembly 271 through the pin shafts; the electro-hydraulic cylinder 155 has a large bi-directional telescopic stroke, so that the folding and the deflection lifting of the wheel can be well realized.

All components of the roll cage assembly 160 are formed by bending and processing titanium alloy special pipes, and all the components are orderly assembled and welded into the roll cage assembly 160 whole under the control of a tool clamp; when the rescue boat rolls over or overturns on the land, the rolling-prevention frame assembly 160 can effectively protect passengers and equipment from being injured; roll cage assembly 160 is sequentially mounted in a predetermined position on frame assembly 110 or hull shell 310 via roll cage seat(s) 127.

All components of the equipment frame 170 are formed by bending and processing titanium alloy special pipes, and all the components are orderly assembled and welded into the whole equipment frame 170 under the control of a tool clamp; the equipment rack 170 is mainly used for storing rescue equipment such as 'rotor unmanned aerial vehicles' and 'folding inflatable boats'; the mounting frame 170 is sequentially fixed to a predetermined position of the frame assembly 110 or the hull casing 310 by bolts or welding.

The powertrain module 200 includes components such as an engine assembly 210, a transmission assembly 220, a transmission 230, a power distribution box 240, a differential steering box 250, a reverse transmission box 260, a wheel assembly 270, a surface thruster 280, and an electric winch 290.

The engine assembly 210 includes various types of gasoline engines and diesel engines; the transmission assembly 220 includes various types of manual and automatic transmissions; the engine assembly 210 and the transmission assembly 220 are sequentially connected into a whole through fastening bolts and are sequentially and fixedly arranged on a preset position of the rear part or middle rear part engine base 124 of the frame assembly 110.

The transmission component 230 comprises a transmission joint 231, a main transmission shaft 232, a pump propeller transmission shaft 233, an edge transmission shaft 234 and a transmission half shaft 235, wherein the edge transmission shaft 234 and the transmission half shaft 235 are both in a plug-in type, and the lengths of the edge transmission shaft 234 and the transmission half shaft 235 can be freely adjusted.

The power distribution box 240 is formed by orderly assembling a box body, an input shaft, a wheel output shaft, a clutch operating mechanism, a pump propeller output shaft and other components; wherein, the input shaft is orderly connected with the transmission assembly 220 through the transmission joint 231, and the wheel output shaft is orderly connected with the input shaft of the differential speed steering box 250 through the transmission joint 231 and the main transmission shaft 232; the pump paddle output shaft is orderly connected with the water surface propeller 280 through the transmission joint 231 and the pump paddle transmission shaft 233; the power distribution box 240 is orderly fixed at a preset position in the middle of the frame assembly 110 through fastening bolts.

The differential speed steering box 250 comprises a power input shaft 1, a bevel gear assembly 2, a transverse shaft 3, a driving clutch assembly 4, a driving gear 5, a first planetary gear 6, a right half shaft gear 7, a left half shaft gear 8, a planetary gear shaft 9, a main speed reducer gear 10, a second planetary gear 11, a box body 12, a differential case 13, a partition plate 14, a steering driven gear 15, a steering driving gear 16, a steering clutch assembly 17, an operator assembly 18, an output left half shaft 19, an output right half shaft 20, a left steering gear 21 and a right steering gear 22.

The bevel gear combination 2 is respectively and fixedly arranged on the power input shaft 1 and the cross shaft 3 in order, and the surface of the cross shaft 3 is provided with a spline which is engaged with the connecting gear 4a and the connecting gear 17 a; the driving clutch assembly 4 is composed of parts such as a connecting gear 4a, an engaging sleeve 4b and a shifting fork 4c, wherein the connecting gear 4a is inserted on the spline teeth on the surface of the cross shaft 3, the spline teeth are arranged in the central hole of the engaging sleeve 4b, the shifting fork groove is arranged on the surface, the engaging sleeve 4b is orderly sleeved on the connecting gear 4a, and two shifting fork toes at the lower end of the shifting fork 4c are orderly movably inserted in the shifting fork groove on the surface of the engaging sleeve 4 b; the end surface of the driving gear 5 is provided with connecting teeth 5a, and the driving gear 5 is orderly movably arranged on the preset position of the transverse shaft 3; the steering clutch assembly 17 is composed of a connecting gear 17a, an engaging sleeve 17b, a shifting fork 17c and other parts, wherein the connecting gear 17a is inserted on the spline teeth on the surface of the cross shaft 3, the spline teeth are arranged in the central hole of the engaging sleeve 17b, the shifting fork grooves are arranged on the surface of the engaging sleeve 17b, the engaging sleeve 17b is orderly sleeved on the connecting gear 17a, and two shifting fork toes at the lower end of the shifting fork 17c are orderly movably inserted in the shifting fork grooves on the surface of the engaging sleeve 17 b; the end surface of the steering driving gear 16 is provided with a connecting tooth 16a, and the steering driving gear 16 is orderly movably arranged on the preset position of the cross shaft 3.

The manipulator assembly 18 comprises a shifting fork shaft 18a, a conversion arm 18b, a shell 18c and other parts, wherein the shifting fork 4c and the shifting fork 17c are respectively and sequentially fixedly arranged on the shifting fork shaft 18a, the shifting fork shaft 18a is sequentially and movably arranged in the shell 18c, the conversion arm 18b is sequentially and fixedly arranged on one end of the shifting fork shaft 18a extending out of the shell 18c, and the shell 18c is sequentially and fixedly arranged on a preset position of the box body 12; the orderly connection or disconnection of the drive clutch assembly 4 and the drive gear 5 can be realized through the switching arm 18b of the (manually operated) operator assembly 18, thereby continuing or stopping the transmission of the engine power to the final drive gear 10; the steering clutch assembly 17 can be sequentially combined with or separated from the steering driving gear 16 through the switching arm 18b of the (manual operation) operator assembly 18, so that the transmission of the engine power to the steering driven gear 15 is continued or terminated.

The driving gear 5 is normally meshed with a main reducer gear 10, and the main reducer gear 10 is fixedly arranged on a differential shell 13; the steering driven gear 15 is in constant mesh with the steering driving gear 16; the inner end of the output left half shaft 19 is fixedly arranged with the left half shaft gear 8 in order, and the outer end is connected with the left steering gear 21 in order; the inner end of the output right half shaft 20 is fixedly arranged with the right half shaft gear 7 in order, and the outer end is connected with the right steering gear 22 in order; one end of a power input shaft 1, a bevel gear combination 2, a transverse shaft 3, a driving clutch assembly 4, a driving gear 5, a first planetary gear 6, a right half shaft gear 7, a left half shaft gear 8, a planetary gear shaft 9, a main reducer gear 10, a second planetary gear 11, a differential case 13, a partition plate 14, a steering driven gear 15, a steering driving gear 16, a steering clutch assembly 17, one end of an output left half shaft 19 and one end of an output right half shaft 20 are sequentially assembled in a box body 12.

After power from the engine flows through the power input shaft 1 and the bevel gear assembly 2, the power can be input to the driving gear 5 through the driving clutch assembly 4 (at this time, the steering clutch assembly 17 is separated from the steering driving gear 16), and can also be input to the steering driving gear 16 through the steering clutch assembly 17 (at this time, the driving clutch assembly 4 is separated from the driving gear 5), so that 3 working conditions can be realized.

(1) The combination sleeve 4b in the driving clutch assembly 4 is combined with the face gear 5a on the driving gear 5, the combination sleeve 17b in the steering clutch assembly 17 is separated from the face gear 16a on the steering driving gear 16, and the power from the engine flows through the power input shaft 1 and the bevel gear combination 2, the driving clutch assembly 4, the driving gear 5, the main reducer gear 10 and the differential case 13, so that the output right half shaft 20 and the output left half shaft 19 sequentially run in the same direction at the same time, and the vehicle can realize straight running.

(2) The combination sleeve 17b in the steering clutch assembly 17 is combined with the face gear 16a on the steering driving gear 16, the combination sleeve 4b of the driving clutch assembly 4 is separated from the face gear 5a on the driving gear 5, the power from the engine flows through the power input shaft 1 and the bevel gear combination 2, the steering clutch assembly 17, the steering driving gear 16, the steering driven gear 15, the right half shaft gear 7, the first planet gear 6, the planet gear shaft 9, the left half shaft gear 8 and the second planet gear 11, is simultaneously transmitted to the output right half shaft 20 and the output left half shaft 19, and the output right half shaft 20 and the output left half shaft 19 respectively and orderly run in opposite directions, so that the vehicle can realize in-situ U-turn steering.

(3) When the driving clutch assembly 4 and the driving gear 5 are in a combined state, the rotation speed of the output left half shaft 19 or the output right half shaft 20 can be respectively controlled through the left steering gear 21 or the right steering gear 22, and the rotation speed of the output left half shaft 19 and the output right half shaft 20 can be changed by utilizing the differential speed generated by the operation rule of the first planetary gear 6, the right half shaft gear 7, the left half shaft gear 8, the planetary gear shaft 9 and the second planetary gear 11, so that the driving wheels on the two sides of the vehicle generate pure rolling differential speed in the running process, and the smooth steering of the vehicle is realized.

The output shafts (i.e. the output left half shaft 19 and the output right half shaft 20) at the two sides of the differential steering box 250 are sequentially connected with the input shafts of the corresponding reversing transmission box(s) 260 through the transmission joint 231 and the main transmission shaft 232.

The side transmission shaft(s) 234 are sequentially connected with the reversing transmission box(s) 260 through the transmission joints 231; the (eighth) reversing transmission cases 260 are sequentially and fixedly mounted on the preset positions of the frame assembly 110 through fastening bolts.

Both ends of the transmission half shaft(s) 235 are respectively connected with the corresponding reversing transmission case 260 and the wheel assembly 270 in sequence.

The wheel assembly 270 comprises a hub connecting plate assembly 271, a brake assembly 272, a rim 273 and a tire 274, wherein the upper end and the lower end of the hub connecting plate assembly 271 are provided with connecting holes, and the hub connecting plate assembly(s) 271 is (are) orderly connected with the rim(s) 273; the brake assembly(s) 272 are sequentially and fixedly arranged at the preset position of the hub connecting plate assembly(s) 271; tire(s) 274 are sequentially mounted on rim(s) 273.

The water surface propeller 280 comprises various types of external ducted propellers, high-speed water jet pumps, folding propellers and stern machines; an input shaft of the water surface propeller 280 is orderly connected with a pump impeller output shaft in the power distribution box 240 through a pump impeller transmission shaft 233; the tail part of the water surface propeller 280 is respectively provided with a steering nozzle 560 and a reversing bucket 570; the water surface propellers 280 are respectively and orderly fixed on the preset positions of the propeller base 134 at the rear lower part of the frame assembly 110.

The electric winches 290 are mainly used for self-rescue of the vehicle in special occasions, and the two electric winches 290 are respectively and fixedly arranged at preset positions in front of (and at the rear of) the amphibious vehicle in order.

The hull system module 300 includes a hull enclosure 310, a body cowl 320, an inner compartment 330, a power pod 340, a foam float 350, a sun and rain canopy 360, and a rotary hydrofoil apparatus 370.

Wherein the hull shell 310 is a non-sealing body; the inner part of the ship is provided with a plurality of keels for increasing the strength of the ship body, the cross section of the bottom of the ship is in a shallow V shape, the bottom is a sliding surface longitudinally, and wave-absorbing diversion trenches are orderly arranged at the rear lower parts of the edges of the two front wheel frames; the hull shell 310 is orderly fixed on a plurality of hull assembling plates 132 in the frame assembly 110 through bolts; the (two) mud guards 311 are orderly arranged at preset positions on two sides of the hull shell 310.

The front part of the vehicle body enclosure 320 is orderly provided with a front windshield 321, and the rear part thereof is orderly provided with an engine cover plate 322; the body enclosure 320 is fixed with the hull casing 310 by fastening bolts.

The inner chamber 330 has good water tightness, and is orderly and fixedly arranged in the space formed by the hull shell 310 through a plurality of fastening bolts and fixed on the preset position of the frame assembly 110; the cab and the passenger compartment are both arranged in the inner compartment 330; most parts of the control system are arranged in the cab, and an interior trim component, a passenger seat and safety lifesaving equipment are arranged in the passenger cabin.

The power compartment 340 is located at the middle rear part in the hull shell 310, and is provided with main machine components such as an engine assembly 210 and a transmission assembly 220.

The foaming floater 350 comprises a ship bottom buoyancy tank 351 and (two) movable buoys 352; the bottom buoyancy tank 351 is filled with EPP (Expanded polypropylene) polypropylene foam, the buoyancy of the bottom buoyancy tank 351 is far larger than the displacement of the self weight and the rated load of the whole vehicle, and the reserve buoyancy of the whole vehicle is larger than 120%, so that the amphibious vehicle can be ensured to be always suspended on the water surface and never sink even if the hull shell 310 is scratched or punctured by a medium bullet; the ship bottom buoyancy tank 351 can be foamed into a whole at one time under the control of a mold, and can also be foamed into a plurality of split bodies respectively for a plurality of times under the control of the mold; the bottom buoyancy tank 351 is sequentially mounted at a predetermined position of the lower portion of the frame assembly 110 in the hull 310.

The movable buoy 352 is processed into a hollow shell by a carbon fiber material, and is filled with EPP foam in the hollow shell; at ordinary times, the (two) movable buoys 352 are respectively and orderly stored at preset positions at the top of the amphibious vehicle (or are stored separately from the amphibious vehicle); when the water surface rescue needs to be implemented, the (two) float bowl devices 352 can be conveniently and sequentially fixedly arranged on the two sides of the hull shell 310 at the preset positions corresponding to the float bowl seats 129 in a symmetrical mode through manual operation, the buoyancy of the amphibious vehicle can be increased by over 800Kg, and the stability of the boat when the water surface rescue is carried out can be obviously improved.

2-4 upward-opened European wing doors are respectively arranged on two sides of the sun-rain awning 360 so as to facilitate the entrance and exit of drivers and passengers; the awning 360 is made of carbon fiber material by special processing, and is sequentially and fixedly arranged on the vehicle body enclosure 320 or the preset position of the roll cage assembly 160.

The rotary hydrofoil device 370 comprises a hydrofoil assembly 371, a connecting rod 372, a rotating shaft 373, a rotating arm 374, a hydraulic cylinder 375 and a hydrofoil seat 128; wherein, the inside of the hydrofoil assembly 371 is orderly provided with a framework and a plurality of stringers, the outer surface is wound by carbon fiber, and the longitudinal cross section of the hydrofoil assembly is in an airfoil shape; one end of the connecting rod 372 is orderly and fixedly arranged on a preset position of the hydrofoil assembly 371, and the other end is orderly and fixedly arranged on a preset position of the rotating shaft 373; one end of the rotating arm 374 is also sequentially and fixedly arranged at a preset position of the rotating shaft 373, and the other end is sequentially connected with the hydraulic cylinder 375 through the rotating shaft; two ends of the rotating shaft 373 are sequentially installed on the rotary hydrofoil seat 128; the other end of the hydraulic cylinder 375 is orderly connected with the mounting seat 135 through a pin shaft; the rotary hydrofoil devices 370 are symmetrically and sequentially fixed on the rotary hydrofoil seats 128 at the lower rear part of the frame assembly 110.

The hydraulic cylinder 375 is manually operated to extend and push the rotating arm 374 to rotate 90 degrees around the rotating shaft 373 (outwards), so that the connecting rod 372 and the hydrofoil assembly 371 are driven to be opened to a horizontal state; when the hydrofoil assembly 371 is opened, the water flow which rapidly flows through the upper part and the lower part of the hydrofoil assembly can generate larger pressure difference, thereby continuously bringing water lift power to the amphibious vehicle which runs on the water surface at high speed.

The steering system module 400 includes a steering device 410, a steering transfer case 420, a steering master cylinder 430, a steering brake 440, a hydraulic line a450, a steering spray head 460, a reversing bucket 470, a hydraulic line B480, a steering pull wire 490, and a differential steering box 250.

Wherein the steering device 410 includes a steering wheel 411, a steering column 412, and a steering cam 413; the steering wheel 411 is orderly arranged at the upper end of the steering column 412, the steering cam 413 is orderly arranged at the lower end of the steering column 412, and the steering column 412 is orderly and fixedly arranged at the preset position of the steering column base 133 through a bolt.

The steering transfer case 420 comprises a machine shell 421, a steering wheel shaft 422, an output shaft I423, an output shaft II 424, an electromagnetic clutch 425, a steering wheel 426, a steering pull wire 490 and the like; the machine shell 421 is an aluminum-magnesium alloy (5083) plate, is orderly assembled into a machine shell whole after punch forming, and is orderly and fixedly arranged at a preset position in a cab through a fastening bolt; the upper end of the steering wheel shaft 422 extends out of the casing 421 and is orderly connected with the steering wheel through a steering column, the surface of the middle part of the steering wheel shaft 422 is provided with a spline, and the other end of the steering wheel shaft is orderly inserted into the insertion hole of the output I shaft 423; the end face of one end of the output I shaft 423 is orderly provided with synchronous teeth corresponding to the inner teeth of the central hole of the combining sleeve, the central position is provided with a plug hole, and the other end of the output I shaft orderly extends out of the shell 421 and is orderly connected with a steering engine through a connecting rod; one end of the output II shaft 424 extending out of the shell 421 is orderly connected with a steering wheel 426; the electromagnetic clutch 425 is an automated actuator that uses the action of electromagnetic force to transmit or stop torque in mechanical transmission; the electromagnetic clutch 425 includes a driving friction plate, a driven friction plate, a sleeve, a coil, an iron core, an armature, a coil spring, and a slip ring; a plurality of groups of pull wire holes with symmetrical positions are orderly formed on the steering wheel 426; one end of the steering pull wire (490) is fixed in the wire hole(s) of the steering wheel (426) orderly, and the other end is connected with the steering nozzle (460) of the water jet pump or the steering rudder of the propeller orderly.

The steering transfer 420 includes an embodiment featuring the use of an electromagnetic clutch 425 and an alternate embodiment featuring the use of a fork mechanism; the working principle of the embodiment featuring the electromagnetic clutch 425 is as follows.

The electromagnetic clutch 425 works on the principle that the actuation and the separation of power transmission are controlled by a direct-current power supply; when the coil 9d is electrified, the driving friction plate and the driven friction plate are attracted to the iron core, the armature is attracted, and the driving friction plate and the driven friction plate are tightly pressed, so that the driving gear can rotate along with the steering wheel shaft by means of the friction force between the driving friction plate and the driven friction plate; the steering of the vehicle when running on the water surface can be controlled through the driven gear, the output II shaft, the steering wheel 426 and the steering pull wire 490; when the coil is powered off, the armature, the driving friction plate and the driven friction plate are quickly restored under the action of the elastic force of the coil spring(s), and the sleeve is pushed to the synchronous teeth on the end face of the output I shaft 423, at the moment, the electromagnetic clutch 425 loses the action of transmitting torque, so that the driving gear does not rotate when the steering wheel shaft 422 rotates; because the synchronous tooth holes on the outer end face of the sleeve are orderly clamped in the synchronous teeth on the end face of the output shaft I423, the output shaft I423 can be directly driven to rotate when the steering wheel shaft 422 rotates; the steering of the vehicle during driving on the land can be controlled by the steering engine connected with the steering engine.

The steering master cylinder 430 comprises a left master cylinder 431 and a right master cylinder 432, wherein the left master cylinder 431 and the right master cylinder 432 are sequentially and fixedly arranged on two sides of the steering cam 413 respectively, and respective pistons of the left master cylinder 431 and the right master cylinder 432 are tightly attached to the steering cam 413 respectively in a close contact mode.

The steering brake 440 comprises a left brake 441 and a right brake 442, wherein the left brake 441 is orderly arranged on the output left half shaft 19 (on the speed difference steering box 250), and the right brake 442 is orderly arranged on the output right half shaft 20 (on the speed difference steering box 250); the braking of the left brake 441 is controlled by the left master pump 431 and the braking of the right brake 442 is controlled by the right master pump 432.

The (two) hydraulic lines A450 are respectively and orderly connected with the left brake 441 and the right brake 442; the hydraulic line B480 is orderly connected with the reverse hopper 470 (at the tail part of the water surface propeller 280); the (two) steering pull wires 490 are respectively and orderly connected with the steering spray head 460 (at the tail of the water surface propeller 280).

The steering system module 400 operates as follows.

Land steering: when the steering transfer case 420 is in a "land driving state", the amphibious vehicle drives on land, and if steering to the left is needed, the steering wheel 411 is rotated to the left, so that the steering cam 413 is driven to press the piston of the left master pump 431 to push inwards, the left brake 441 generates braking force to force the rotating speed of the output left half shaft 19 in the speed difference steering box 250 to be reduced, the amphibious vehicle is driven to the left by the fact that the rotating speeds of the wheels on the two sides are different (namely, speed difference is generated), and the turning radius of the vehicle is smaller when the generated speed difference is larger; and the right steering can be conveniently realized in the same way.

Turning around on the land in situ: if the amphibious vehicle runs on the land when the steering transfer case 420 is in a 'land running state', and the amphibious vehicle needs to turn around in situ in the process, wheels on two sides of the amphibious vehicle can rotate reversely by manually operating the operator assembly 18 (in the speed difference steering case 250) to separate the combining sleeve 4b in the driving clutch assembly 4 from the face gear 5a on the driving gear 5, so that the amphibious vehicle can turn around in situ.

Water surface steering: when the steering transfer case 420 is in a water surface running state, the amphibious vehicle runs on the water surface, and if steering to the left is needed, the steering wheel 411 is rotated to the left, and the steering spray head 460 is directly pulled to the left through the steering pull wire 490 so as to change the water spraying direction, so that the amphibious vehicle can be steered to the left; and the right steering can be conveniently realized in the same way.

Surface reverse and emergency stop: when the steering transfer case 420 is in a water surface running state, the amphibious vehicle runs on the water surface, and if the amphibious vehicle needs to back up or stop emergently, the back-up bucket 470 can be quickly put down through the back-up switch and the hydraulic line B480, so that the direction of water spraying flow is changed, and the vehicle can back up or stop emergently.

The hydro-electric system module 500 includes a hydraulic station 510, electrical equipment 520, and communication facilities 530.

The hydraulic station 510 is composed of a motor, a gear pump, a control valve, a hydraulic oil tank, an oil conveying pipe and the like; wherein the gear pump is directly driven by the motor; all parts are orderly connected and orderly and fixedly arranged at a preset position in the frame assembly 110; the hydraulic station 510 functions to provide hydraulic energy for the extension and retraction functions of the hydraulic component in the electro-hydraulic cylinder(s) 155, hydraulic cylinder 376 and surface thruster 280.

The electrical equipment 520 comprises an instrument integration device, a power system, a starting system, an ignition system, a lamp system, an instrument, an alarm device, auxiliary electrical appliances, an electrical equipment circuit, an air conditioning system and an audio system; the electrical system devices 520 are respectively and orderly arranged at preset positions in the amphibious vehicle.

The communication facility 530 comprises a (Beidou) navigation system and a (communication system with infrared, short wave and other functions), and the electromagnetic compatibility of the communication facility meets the requirements of GJB1389A-2005 on safety margin, system electromagnetic compatibility and compatibility of external radio frequency electromagnetic environment, so that information exchange with superior and subordinate and friendly vehicles can be realized.

The steering system module 600 includes a land travel steering device 610, a wheel lift steering device 620, and a drain inflation apparatus 630.

Each component in the land driving control device 610 and the wheel lifting control device 620 is respectively and fixedly arranged at the front part of the frame assembly 110 and at the preset position in the cab in order.

The drain aeration equipment 630 includes a centrifugal drain pump 631 and an aeration pump 632; the centrifugal drain pump 631 is mainly used for pumping out accumulated water in the cab, the passenger cabin and the power cabin; the inflation and air exhaust machine 632 is mainly used for inflating and deflating rescue equipment such as a folding inflatable boat and the like; the water and gas discharging equipment 630 is powered by a storage battery and is orderly arranged at a preset position in the amphibious vehicle.

The invention is provided with two power transmission modes (routes) of 'one machine with one pump' and 'two pumps with one machine'; both "land travel" and "water travel" modes of operation are conveniently achieved by power distribution box 230.

Wherein, the power transmission route in the 'land driving' mode is as follows: the torque of the engine assembly 210 drives the eight wheel assemblies 270 to sequentially run through the transmission assembly 220, the transmission joint 231, the power distribution box 240, the main transmission shaft 232, the speed difference steering box 250, the main transmission shaft 232, the reversing transmission box 260, the side transmission shaft 234 and the transmission half shaft 235.

In the water surface running mode of the one-machine double-pump mode: through manual operation, the eight wheel assemblies 270 are respectively deflected upwards by the electro-hydraulic cylinders 155 for more than 200 mm; the two hydrofoil assemblies 371 are unfolded from the folded state to the horizontal position; the transmission route of the power is as follows: (the transmission ratio in the transmission assembly 220 is in the position of "1"), the hydraulic clutch in the power distribution box 240 enters the "supercharging state", and the engine torque is only transmitted to the pump impeller output shaft(s) 243 in the power distribution box 240 and directly drives the water surface propeller(s) 280 to run at a high speed through the pump impeller transmission shaft(s) 233; the steering jet at the tail part of the water surface propeller 280 is directly controlled by a steering wheel and a steering transfer case, so that the minimum turning radius of the vehicle when the vehicle runs on the water surface can be conveniently realized.

The working principle and process for realizing 'wheel lifting' in the invention are as follows: when the vehicle enters a water surface running mode, the wheel lifting control device 620 is manually operated to enable the electro-hydraulic cylinder 155 to contract inwards, the shock absorber assembly 151 and the lower swing arm 153 are pulled through the rotating arm 154, and the wheel hub connecting plate assembly 271 and the wheel assembly 270 thereof, which are sequentially connected with the upper swing arm 152 and the lower swing arm 153, rotate upwards by more than 200 millimeters (at the moment, the electro-hydraulic cylinder 155 enters a self-locking state) by taking a pin shaft on the lower swing arm seat 123 as a center; when the vehicle returns to the 'land running' mode, the wheel lifting control device 620 and the electro-hydraulic cylinder 155 are manually operated to release self-locking and extend outwards to an initial setting position, so that the shock absorber assembly 151 and the lower swing arm 153 are driven to reversely rotate together, the hub connecting plate assembly 271 and the wheel assembly 270 thereof are orderly descended until the wheel assembly returns to the initial setting position (at the moment, the electro-hydraulic cylinder 155 enters the self-locking state again); under the 'water surface running' mode, each wheel leaves the water surface by lifting upwards, and the amphibious vehicle has important effects on obviously reducing water resistance, improving the water surface speed per hour of the amphibious vehicle, saving energy and reducing consumption.

The hull 310 of the present invention does not need to be sealed, and the buoyancy required for surface operation is provided by the bottom buoyancy tank 351 and the inner chamber 330 located at the bottom of the vehicle body, and the (two) movable buoys 352; the two movable buoys 352 have the significant effect and the obvious effect of greatly improving the displacement (namely the water surface rescue bearing capacity) and the water surface operation stability of the rescue boat.

The driving operation rule of the invention is as follows: the land-based driving control device 610 operates in the same manner as a general off-road vehicle; when the water surface runs, the eight wheel assemblies 270 are automatically lifted upwards by more than 200 mm only by pressing down the function change-over switch in the wheel lifting control device 620, and the water surface propeller 280 is started to run; all electronic instruments (including observation equipment such as military vehicle-mounted radar, sextant and the like) on the vehicle are sealed and independently stored in the instrument integrated device, so that the problem that a vehicle control system is possibly out of work when the vehicle runs on the water surface can be avoided to the maximum extent; the correct direction of the vehicle running on the water surface can be ensured by the guidance of the radio signals sent by the vehicle-mounted electronic equipment and the base navigation station.

Due to the adoption of the technical scheme, the invention perfectly realizes the aim of the invention, comprehensively and systematically shows the key common technologies of four aspects of high-efficiency power transmission, light whole vehicle weight, resistance and speed reduction on the water surface, global safe operation and the like which are mastered at present, and has the following outstanding advantages and beneficial effects compared with similar products.

1. The amphibious vehicle is scientific in design, reasonable in structure, excellent and superior in amphibious maneuverability and water surface safety performance.

2. The standardization and the generalization of the components are high, and the manufacturing technology is advanced.

3. Light weight, high speed, large loading capacity, high cost performance and wide application.

4. All the technologies are independent, all the components are localized, and therefore low-cost series and deep development can be rapidly achieved.

Drawings

The invention is further described below with reference to the given figures.

FIG. 1 is a schematic diagram of a vehicle integrated system module according to the present invention.

FIG. 2 is a side view of the main structure of the present invention.

FIG. 3 is a schematic view of a main structure of the frame assembly of the present invention.

Fig. 4 is a schematic structural view of a power transmission and steering system according to the present invention.

Fig. 5 is a schematic view of the main structure and the working principle of the differential speed steering box of the present invention.

Fig. 6 is a schematic structural view of a hull system and a wheel lifting device according to the present invention.

FIG. 7 is a schematic view of the open position of the rotary hydrofoil apparatus of the present invention.

Fig. 8 is a schematic structural view of a steering transfer case main body according to the present invention.

Detailed Description

As can be seen from fig. 1, 2, 3, 4, 5, 6, 7 and 8, the present invention is integrated by six system modules, i.e., a frame system 100, a power system 200, a hull system 300, a steering system 400, a hydro-electric system 500 and a control system 600, and has the significant technical features of scientific design, reasonable structure, reliable performance, convenient and fast matching, etc.

Wherein, the frame system module 100 comprises a frame assembly 110, a lifting suspension mechanism 150, a rolling-proof frame assembly 160 and an equipment frame 170; the power system module 200 comprises an engine assembly 210, a transmission assembly 220, a power distribution box 230, a water drainage and air charging device 240, a transmission part 250, a differential assembly 260, a wheel assembly 270, a water surface propeller 280, an electric winch 290 and the like; the hull system module 300 includes a hull shell 310, a body enclosure 320, an inner compartment 330, a power pod 340, a foam float 350, a weather hood 360 and a rotary hydrofoil device 370; the steering system module 400 includes a steering device 410, a steering transfer case 420, a steering master pump 430, a steering brake 440, a hydraulic line a450, a steering spray head 460, a reversing bucket 470, a hydraulic line B480, a steering pull wire 490, and a differential steering box 250; the hydro-electric system module 500 includes a hydraulic station 510, electrical equipment 520, and communications facilities 530; the steering system module 600 includes a land travel steering device 610, a wheel lift steering device 620, and a drain inflation apparatus 630.

As shown in fig. 1, 2 and 3, in order to ensure reliable impact strength of the vehicle, to ensure lightweight of the entire vehicle, and to fundamentally solve the problem of improving seawater corrosion resistance of the vehicle when used at sea, the frame assembly 110, the lifting suspension mechanism 150, the roll cage assembly 160 and the equipment rack 170 are made of titanium alloy (TC 4) or aluminum magnesium alloy (6061); particularly, carbon fiber materials or aluminum magnesium alloy (5083) materials are adopted for parts such as the hull shell 310, the vehicle body enclosure 320 and the like.

As further shown in fig. 1, 2 and 3, in order to maintain the interior space of the vehicle to the maximum and ensure sufficient strength of the vehicle, a frame assembly 110 originally invented by the applicant is specially selected; the frame assembly 110 is formed by bending and welding a plurality of components through a special process, and has higher safety protection performance after being analyzed by a finite element system; the roll-preventing frame assembly 160 can be orderly arranged at the middle upper part of the frame assembly 110, so that the roll-preventing safety performance of the rescue boat during land running can be further improved; the rear upper part of the frame assembly 110 can be provided with an equipment frame 170, so that the requirement of carrying various rescue equipment can be better met.

As also known from fig. 1, 2 and 6, in order to ensure the absolute safety of the vehicle running on the water, a ship body system module 300 originally invented by the applicant is specially arranged; in the system module, the inner chamber 330 has reliable water tightness, and the bottom buoyancy tank 351 in the foaming buoyancy body 350 is formed by EPP polypropylene foaming filling completely according to the space shape and size of the vehicle body bottom; meanwhile, in order to further improve the bearing capacity of water surface rescue and the stability of water surface operation, a movable buoy 352 is also arranged; the buoyancy can be increased by over 800Kg after the two movable buoys 352 are opened.

As also shown in fig. 1, 2 and 6, in order to further reduce the water resistance of the vehicle when running in water and continuously generate water-lifting power, the hull shell 310 with wave-pressing and wave-absorbing and high-slip performances, which is originally invented by the applicant, is specially arranged; a plurality of keels are orderly arranged in the hull shell 310 and are orderly and fixedly arranged with the hull connecting plate(s) 132 in the frame assembly 110 through a plurality of fastening bolts; the unique sliding bottom surface of the hull shell 310 can enable the rescue boat to be more easily slid and accelerated when running on the water surface.

As further shown in fig. 1 and 3, in order to better satisfy the self-rescue of the vehicle in a special situation, an electric winch 290 is specially installed at a preset position of the front (and rear) part of the frame assembly 110.

It is further known from fig. 1 and fig. 3 that, in order to better meet the use requirements of the rescue boat for amphibious high-speed operation and amphibious high-efficiency maneuvering, a power transmission system which is characterized by a power distribution box 230 and has unique characteristics is specially arranged, and the system has three functions of meeting the requirements of independent work of a driving axle, independent work of a propelling device and simultaneous work of the driving axle and the propelling device.

As also shown in fig. 1, 2 and 4, to improve and enhance the water surface propulsion efficiency of the vehicle, the water surface propeller 280 is specially equipped with an "external ducted propeller" originally invented by the applicant; the advanced water-jet propulsion device fully integrates multiple advantages of a water-jet pump and a ducted propeller, and has the advantages of high propulsion efficiency, small attached body resistance, good protective performance, flexible water surface steering, small steering radius and good shallow water performance, thereby better solving two technical problems of high-efficiency water surface propulsion and flexible water surface steering; by combining the wheel folding lifting technology and the streamline hull sliding bottom surface design, the torque of the engine can be exerted to the limit on the premise of configuring a 2.0T displacement 165Kw power engine, so that the speed of the vehicle running on the water surface can completely reach over 55 km.

As further shown in fig. 1 and 6, in order to significantly reduce the water resistance, a lifting suspension mechanism 150 is specially provided for conveniently realizing the deflection and lifting of the wheels; research and tests show that the wheels and the suspension devices immersed in water can generate huge driving resistance on water, and the resistance of the wheel parts in water accounts for 25-45% of the total resistance of the vehicle in water; after the advanced lifting suspension mechanism 150 is adopted, when a vehicle runs on water, the eight wheel assemblies 270 can be automatically lifted upwards by more than 200 mm by only pressing a function change-over switch in the wheel lifting control device 620 arranged in a cab downwards, and the water resistance of the vehicle during sliding in water can be reduced to the maximum extent by cooperatively matching with a streamlined chassis.

As further shown in fig. 1, 2 and 6, when the vehicle is traveling in water, the frame assembly 110 and hull shell 310 support the full pressure and load of the vehicle; in order to better solve the problem of poor streamline of a common chassis shell and obviously reduce the navigation resistance in water, the streamline gliding type hull chassis is specially designed; the hull shell 310 is in a 'submachine boat or yacht' shape, adopts a one-step molding process of a carbon fiber material or an aluminum-magnesium alloy (5083) material, and can bear the water pressure when the ship runs on the water surface at a high speed; and (two fin-shaped) fairing plates are symmetrically arranged at the lower parts of two sides of the ship body, so that the stability and the maneuverability of the vehicle running on the water surface at high speed can be further improved and enhanced.

It is also known from fig. 1, 4 and 7 that, in order to significantly shorten the water surface skidding time of the amphibious vehicle and to enable the amphibious vehicle to continuously generate large aquatic power to lift most of the hull out of the water surface, the rear lower portion of the vehicle is provided with (two) rotary hydrofoil devices 370 in a symmetrical manner, which can effectively reduce the water resistance when the vehicle is running at high speed on the water surface, and can bring the efficiency of the engine to the maximum, thereby enabling the vehicle to more easily enter a water skidding sailing state.

As also known from fig. 1 and 4, a hydraulic station 510 is specially arranged to provide hydraulic energy for all hydraulic components in the amphibious vehicle to realize the telescopic function; the hydraulic station 510 is composed of a motor, a gear pump, a control valve, a hydraulic oil tank, an oil pipeline and other parts, wherein the gear pump is driven by the motor; the various components of hydraulic station 510 are sequentially connected and sequentially mounted at predetermined locations in frame assembly 110.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the present invention integrates the multiple advantages of the off-road vehicle and the yacht, and can realize land-based global mobility and superior mudflat passing ability; the water vehicle is rapid and flexible, sealing is not required to be never sunk, low-cost series and deep development can be realized, light high-speed amphibious multi-purpose vehicles with various models and different purposes can be rapidly formed, and various actual requirements in emergency rescue and military equipment can be better met.

Claims (8)

1. An 8x8 light high-speed amphibious vehicle is scientifically and integrally integrated by a frame system module (100), a power system module (200), a hull system module (300), a steering system module (400), a hydraulic-electric system module (500) and a control system module (600); the vehicle frame system module (100) is characterized by comprising a vehicle frame assembly (110), a suspension mechanism (150), an anti-rolling frame assembly (160) and an equipment frame (170); the power system module (200) comprises an engine assembly (210), a transmission assembly (220), a transmission part (230), a power distribution box (240), a speed difference steering box (250), a reversing transmission box (260), a wheel assembly (270), a water surface propeller (280) and an electric winch (290); the ship body system module (300) comprises a ship body shell (310), a vehicle body enclosure (320), an inner cabin (330), a power cabin (340), a foaming floating body (350), a sun and rain canopy cover (360) and a rotary hydrofoil device (370); the steering system module (400) comprises a steering device (410), a steering transfer case (420), a steering master pump (430), a steering brake (440), a hydraulic line A (450), a steering spray head (460), a reversing bucket (470), a hydraulic line B (480), a steering pull wire (490) and a differential steering box (250); the hydro-electric system module (500) comprises a hydraulic station (510), an electrical device (520) and a communication facility (530); the control system module (600) comprises a land driving control device (610), a wheel lifting control device (620) and a drainage and inflation device (630).

2. An 8x8 light-duty high-speed amphibious vehicle according to claim 1, characterized in that said vehicle frame assembly (110) comprises an upper ring frame (111), an upper cross beam (112), a lower ring frame (113), a lower cross beam (114), diagonal braces (115), side vertical beams (116), side vertical bars (117), front vertical beams (119), rear vertical beams (120), a rocker arm seat (121), an upper swing arm seat (122), a lower swing arm seat (123), an engine seat (124), a power distribution box seat (125), a differential speed steering box seat (126), an anti-roll frame seat (127), a rotary hydrofoil seat (128), a movable buoy seat (129), a hydraulic cylinder seat (130), a hull assembly plate (132), a steering column seat (133), a propeller seat (134) and a mounting seat (135);

the upper annular frame (111) is formed by sequentially welding a titanium alloy or aluminum magnesium alloy plate into a whole under the control of a tool after being cut and stamped; the two upper cross beams (112) are respectively and orderly welded on the preset positions of the upper annular frame (111); the lower annular frame (113) is formed by sequentially welding a titanium alloy or aluminum magnesium alloy plate into a whole under the control of a tool after being cut and stamped; the four lower cross beams (114) are sequentially welded on the preset positions of the lower annular frame (113) respectively; the four diagonal braces (115) are sequentially welded at the preset positions of the lower annular frame (113) in a crossed mode; sixteen vertical side beams (116) are respectively and orderly welded at preset positions on two sides of the upper annular frame (111) and the lower annular frame (113); the eight side vertical bars (117) are respectively and orderly welded at preset positions in the middle of the two corresponding side vertical beams (116); the two front vertical beams (119) are respectively and orderly welded on the preset positions at the front parts of the upper annular frame (111) and the lower annular frame (113); the two rear vertical beams (120) are respectively and orderly welded on the preset positions at the rear parts of the upper annular frame (111) and the lower annular frame (113); the eight rotating arm seats (121) are fixedly arranged on the preset positions of the upper annular frame (111) in order through bolts respectively; sixteen upper swing arm seats (122) are respectively and fixedly arranged on the preset positions of the side vertical beams (116) in order through bolts; sixthly, the lower swing arm seats (123) are fixedly arranged at preset positions on two sides of the lower annular frame (113) in order through bolts; the two engine bases (124) are fixedly arranged on preset positions of two inner sides of the middle rear part of the upper annular frame (111) in order through bolts respectively; the two power distribution box seats (125) are fixedly arranged on the preset positions of the lower cross beam (114) in the middle of the lower annular frame (113) in order through bolts respectively; the two speed difference steering box seats (126) are fixedly arranged on the preset positions of the two lower cross beams (114) in order through bolts respectively; each anti-rolling frame seat (127) is fixedly arranged on a preset position on the periphery outside the upper annular frame (111) in order through bolts; the two hydrofoil assembling seats (128) are fixedly arranged at preset positions on two sides of the rear part of the lower annular frame (113) in order through bolts in a symmetrical mode; the four buoy assembly seats (129) are fixedly arranged at preset positions on two sides of the middle part of the lower annular frame (113) in order through bolts in a symmetrical mode; the eight hydraulic cylinder seats (130) are fixedly arranged at preset positions on two sides of the lower annular frame (113) in order through bolts respectively; each ship body assembling plate (132) is fixedly arranged at a preset position on the periphery of the upper annular frame (111) in order through bolts; the steering column seat (133) is sequentially and fixedly arranged on a preset position in the front part of the upper annular frame (111); the two propeller bases (134) are sequentially welded on preset positions at the rear part of the lower annular frame (113); the two mounting seats (135) are sequentially welded on preset positions at the rear part of the upper annular frame (111); all the components are orderly welded into a whole frame assembly (110) under the control of a tool clamp; the frame assembly (110) is orderly and fixedly arranged at a preset position in the hull shell (310) through a plurality of hull assembly plates (132) and bolts;

the suspension mechanism (150) consists of a shock absorber assembly (151), an upper swing arm (152), a lower swing arm (153), a rotating arm (154) and an electric hydraulic cylinder (155); one ends of the two rotating arms (154) are sequentially arranged at two ends of a spline shaft respectively, the other ends of the two rotating arms (154) are sequentially connected with a connecting hole at the upper end of the shock absorber assembly (151) and a connecting hole at the upper end of the electric hydraulic cylinder (155) respectively, and the spline shaft is sequentially arranged on the rotating arm seat (121); connecting holes at the lower end of each shock absorber assembly (151) are sequentially connected with corresponding mounting holes on the lower swing arm (153) through pin shafts; connecting holes at the lower two ends of each electro-hydraulic cylinder (155) are respectively and orderly sleeved on the corresponding hydraulic cylinder seats (130) through pin shafts; connecting holes at the upper ends of the upper swing arm (152) and the lower swing arm (153) are sequentially connected with the corresponding upper swing arm seat (122) and the lower swing arm seat (123) through pin shafts respectively, and connecting holes at the lower ends of the upper swing arm and the lower swing arm are sequentially assembled with connecting holes at the upper end and the lower end of a hub connecting plate assembly (271) through pin shafts respectively;

all components of the roll cage assembly (160) are formed by bending and processing titanium alloy special pipes, and all components are sequentially assembled and welded into the whole roll cage assembly (160) under the control of a tool clamp; the anti-rolling frame assembly (160) is orderly and fixedly arranged on the preset position of the frame assembly (110) or the hull shell (310) through each anti-rolling frame seat (127);

all components of the equipment frame (170) are formed by bending and processing titanium alloy special pipes, and all the components are sequentially assembled and welded into the whole equipment frame (170) under the control of a tool fixture; the equipment frame (170) is orderly and fixedly arranged on the frame assembly (110) or the preset position of the hull shell (310) through bolts or welding.

3. An 8x8 light-duty high-speed amphibious vehicle according to claim 1, characterized in that engine assembly (210) and transmission assembly (220) are sequentially connected into a whole through fastening bolts and sequentially fixed on a preset position of rear or middle rear engine base (124) of frame assembly (110); the transmission component (230) comprises a transmission joint (231), a main transmission shaft (232), a pump propeller transmission shaft (233), an edge transmission shaft (234) and a transmission half shaft (235), wherein the edge transmission shaft (234) and the transmission half shaft (235) are in a plug-in type, and the lengths of the edge transmission shaft and the transmission half shaft can be freely adjusted; the power distribution box (240) is formed by orderly assembling a box body, an input shaft, a wheel output shaft, a clutch operating mechanism and a pump impeller output shaft; the input shaft is orderly connected with the transmission assembly (220) through the transmission joint (231), and the wheel output shaft is orderly connected with the input shaft of the differential speed steering box (250) through the transmission joint (231) and the main transmission shaft (232); the output shaft of the pump paddle is orderly connected with the water surface propeller (280) through a transmission joint (231) and a pump paddle transmission shaft (233); the power distribution box (240) is orderly and fixedly arranged at a preset position in the middle of the frame assembly (110) through a fastening bolt; output shafts on two sides of the differential speed steering box (250), namely an output left half shaft (19) and an output right half shaft (20), are sequentially connected with input shafts of the two corresponding reversing transmission boxes (260) through a transmission joint (231) and a main transmission shaft (232); each side transmission shaft (234) is orderly connected with each reversing transmission box (260) through a transmission joint (231); the eight reversing transmission boxes (260) are sequentially and fixedly arranged on the preset positions of the frame assembly (110) through fastening bolts; two ends of each transmission half shaft (235) are sequentially connected with the corresponding reversing transmission case (260) and the corresponding wheel assembly (270) respectively; the wheel assembly (270) comprises a hub connecting plate assembly (271), a brake assembly (272), a rim (273) and a tire (274), wherein connecting holes are formed in the upper end and the lower end of the hub connecting plate assembly (271), and the hub connecting plate assembly (271) is sequentially connected with the rim (273); the brake assembly (272) is sequentially and fixedly arranged on a preset position of the hub connecting plate assembly (271); the tyre (274) is orderly fixed on the rim (273); the water surface propeller (280) comprises various types of external ducted propellers, high-speed water jet pumps, folding propellers and stern machines; the tail part of the water surface propeller (280) is respectively provided with a steering spray head (560) and a reversing bucket (570); the water surface propeller (280) is orderly and fixedly arranged on the preset position of the propeller seat (134) at the rear lower part of the frame assembly (110); the two electric winches (290) are respectively and fixedly arranged at preset positions of the front part and the rear part of the amphibious vehicle in order.

4. The 8x8 light-duty high-speed amphibious vehicle as claimed in claim 1, wherein the differential steering box (250) comprises a power input shaft (1), a bevel gear combination (2), a transverse shaft (3), a driving clutch assembly (4), a driving gear (5), a first planetary gear (6), a right half shaft gear (7), a left half shaft gear (8), a planetary gear shaft (9), a main reducer gear (10), a second planetary gear (11), a box body (12), a differential case (13), a partition plate (14), a steering driven gear (15), a steering driving gear (16), a steering clutch assembly (17), an operator assembly (18), an output left half shaft (19), an output right half shaft (20), a left steering gear (21) and a right steering gear (22); wherein the bevel gear combination (2) is respectively and fixedly arranged on the power input shaft (1) and the transverse shaft (3) in order, and the surface of the transverse shaft (3) is provided with a spline which is engaged with the connecting gear (4 a) and the connecting gear (17 a); the driving clutch assembly (4) consists of a connecting gear (4 a), an engaging sleeve (4 b) and a shifting fork (4 c), wherein the connecting gear (4 a) is inserted on spline teeth on the surface of the cross shaft (3), the spline teeth are arranged in a central hole of the engaging sleeve (4 b), shifting fork grooves are arranged on the surface of the engaging sleeve, the engaging sleeve (4 b) is orderly sleeved on the connecting gear (4 a), and two shifting fork toes at the lower end of the shifting fork (4 c) are orderly movably inserted in the shifting fork grooves on the surface of the engaging sleeve (4 b); the end surface of the driving gear (5) is provided with connecting teeth (5 a), and the driving gear (5) is orderly movably arranged on the preset position of the transverse shaft (3); the steering clutch assembly (17) consists of a connecting gear (17 a), an engaging sleeve (17 b) and a shifting fork (17 c), wherein the connecting gear (17 a) is inserted on spline teeth on the surface of the cross shaft (3), the spline teeth are arranged in a central hole of the engaging sleeve (17 b), shifting fork grooves are arranged on the surface, the engaging sleeve (17 b) is orderly sleeved on the connecting gear (17 a), and two shifting fork toes at the lower end of the shifting fork (17 c) are orderly movably inserted in the shifting fork grooves on the surface of the engaging sleeve (17 b); the end surface of the steering driving gear (16) is provided with connecting teeth (16 a), and the steering driving gear (16) is orderly movably arranged on the preset position of the transverse shaft (3); the manipulator assembly (18) consists of a shifting fork shaft (18 a), a conversion arm (18 b) and a shell (18 c), wherein a shifting fork (4 c) and a shifting fork (17 c) are respectively and sequentially and fixedly arranged on the shifting fork shaft (18 a), the shifting fork shaft (18 a) is sequentially and movably arranged in the shell (18 c), the conversion arm (18 b) is sequentially and fixedly arranged at one end of the shifting fork shaft (18 a) extending out of the shell (18 c), and the shell (18 c) is sequentially and fixedly arranged at a preset position of the box body (12); through the manual operation of a switching arm (18 b) of the operator assembly (18), the orderly combination or separation of the driving clutch assembly (4) and the driving gear (5) can be realized, so that the transmission of the power flow of the engine to the main speed reducer gear (10) is continued or terminated; the steering clutch assembly (17) and the steering driving gear (16) can be orderly combined or separated by manually operating a conversion arm (18 b) of the operator assembly (18), so that the transmission of the power flow of the engine to the steering driven gear (15) is continued or stopped; the driving gear (5) is normally meshed with a main reducer gear (10), and the main reducer gear (10) is fixedly arranged on a differential shell (13); the steering driven gear (15) is in constant mesh with the steering driving gear (16); the inner end of the output left half shaft (19) is fixedly arranged with the left half shaft gear (8) in order, and the outer end is connected with the left steering gear (21) in order; the inner end of the output right half shaft (20) is fixedly arranged with the right half shaft gear (7) in order, and the outer end is connected with the right steering gear (22) in order; one end of a power input shaft (1), a bevel gear combination (2), a transverse shaft (3), a driving clutch assembly (4), a driving gear (5), a first planetary gear (6), a right half shaft gear (7), a left half shaft gear (8), a planetary gear shaft (9), a main reducer gear (10), a second planetary gear (11), a differential case (13), a partition plate (14), a steering driven gear (15), a steering driving gear (16), a steering clutch assembly (17), one end of an output left half shaft (19) and one end of an output right half shaft (20) are sequentially assembled in a box body (12);

the differential speed steering box (250) can realize 3 working conditions; 1) power from an engine flows through a power input shaft (1), a bevel gear combination (2), a driving clutch assembly (4), a driving gear (5), a main speed reducer gear (10) and a differential case (13) to enable an output right half shaft (20) and an output left half shaft (19) to simultaneously and orderly run in the same direction, and at the moment, the vehicle can realize straight line running; 2) The power from the engine flows through a power input shaft (1), a bevel gear combination (2), a steering clutch assembly (17), a steering driving gear (16), a steering driven gear (15), a right half shaft gear (7), a first planetary gear (6), a planetary gear shaft (9), a left half shaft gear (8) and a second planetary gear (11), is simultaneously transmitted to an output right half shaft (20) and an output left half shaft (19), and the output right half shaft (20) and the output left half shaft (19) respectively and orderly rotate in opposite directions, so that the vehicle can realize pivot turning; 3) When the driving clutch assembly (4) and the driving gear (5) are in a combined state, the rotating speed of the output left half shaft (19) or the output right half shaft (20) can be respectively controlled through the left steering gear (21) or the right steering gear (22), and the rotating speeds of the output left half shaft (19) and the output right half shaft (20) can be changed by utilizing the differential speed generated by the operation rules of the first planetary gear (6), the right half shaft gear (7), the left half shaft gear (8), the planetary gear shaft (9) and the second planetary gear (11), so that the driving wheels on two sides of the vehicle generate pure rolling differential speed in the driving process, and the smooth steering of the vehicle is realized.

5. An 8x8 light high-speed amphibious vehicle according to claim 1, characterised in that hull (310) is non-sealed; a plurality of keels for increasing the strength of the ship body are arranged in the ship body, the cross section of the bottom of the ship body is in a shallow V shape, and the bottom of the ship body is a sliding surface longitudinally; the hull shell (310) is orderly and fixedly arranged on a plurality of hull assembly plates (132) in the frame assembly (110) through bolts; the mud guards (311) are respectively and orderly arranged at preset positions on two sides of the hull shell (310); the front part of the vehicle body enclosure (320) is orderly provided with a front windshield (321), and the rear part of the vehicle body enclosure is orderly provided with an engine cover plate (322); the vehicle body enclosure (320) is orderly and fixedly arranged with the hull shell (310) through fastening bolts; the inner cabin (330) has good water tightness, is orderly and fixedly arranged in a space formed by the hull shell (310) through a plurality of fastening bolts and is fixed on a preset position of the frame assembly (110); the power cabin (340) is positioned at the middle rear part in the hull shell (310), and an engine assembly (210) and a transmission assembly (220) are arranged in the power cabin; the foaming floating body (350) comprises a ship bottom floating box (351) and two movable floating bodies (352); wherein, the bottom buoyancy tank (351) is filled with EPP foam, and the reserve buoyancy is more than 120 percent; the ship bottom buoyancy tank (351) can be foamed into a whole at one time under the control of a mould, and can also be foamed into a plurality of split bodies respectively for a plurality of times under the control of the mould; the ship bottom buoyancy tanks (351) are sequentially and fixedly arranged on the preset position at the lower part of the frame assembly (110) in the hull shell (310); the movable buoy (352) is processed into a hollow shell by carbon fiber materials, and EPP foaming is adopted to fill the hollow shell; after the two movable floating bowls (352) are fixedly arranged on the two sides of the hull shell (310) in order and at the preset positions corresponding to the floating bowl seats (129) in a symmetrical mode through manual operation, the buoyancy of the amphibious vehicle can be increased by over 800Kg, and the stability of the boat during water surface rescue can be obviously improved; 2-4 upward-opened European wing doors are respectively arranged on two sides of the sun-rain awning (360) so as to facilitate the entrance and exit of drivers and passengers; the sunshade awning (360) is made of carbon fiber materials and is sequentially and fixedly arranged on a preset position of the car body enclosure (320) or the rolling prevention frame assembly (160); the rotary hydrofoil device (370) comprises a hydrofoil assembly (371), a connecting rod (372), a rotating shaft (373), a rotating arm (374), a hydraulic cylinder (375) and a hydrofoil seat (128); wherein, the inside of the hydrofoil assembly (371) is orderly provided with a framework and a plurality of purlins, the outer surface is wound by carbon fiber, and the longitudinal cross section of the hydrofoil assembly is in an airplane wing shape; one end of the connecting rod (372) is sequentially and fixedly arranged on a preset position of the hydrofoil assembly (371), and the other end of the connecting rod is sequentially and fixedly arranged on a preset position of the rotating shaft (373); one end of the rotating arm (374) is also sequentially and fixedly arranged on a preset position of the rotating shaft (373), and the other end of the rotating arm is sequentially connected with the hydraulic cylinder (375) through a pin shaft; two ends of the rotating shaft (373) are orderly arranged on the rotary hydrofoil seat (128); the other end of the hydraulic cylinder (375) is orderly connected with the mounting seat (135) through a pin shaft; the two rotary hydrofoil devices (370) are respectively and orderly fixed on the rotary hydrofoil seats (128) at the lower rear part of the frame assembly (110) in a symmetrical mode; the hydraulic cylinder (375) is manually operated to extend out, and the rotating arm (374) is pushed to rotate outwards by 90 degrees by taking the rotating shaft (373) as a center, so that the connecting rod (372) and the hydrofoil assembly (371) are driven to be opened to a horizontal state; when the hydrofoil assembly (371) is opened, the water flow which rapidly flows through the upper part and the lower part of the hydrofoil assembly can generate larger pressure difference, so that water lift power can be continuously provided for the amphibious vehicle which runs on the water surface at high speed.

6. An 8x8 light-duty high-speed amphibious vehicle according to claim 1, characterized in that steering means (410) comprises steering wheel (411), steering column (412) and steering cam (413); the steering wheel (411) is orderly arranged at the upper end of the steering column (412), the steering cam (413) is orderly arranged at the lower end of the steering column (412), and the steering column (412) is orderly and fixedly arranged at a preset position of the steering column base (133) through a bolt; the steering transfer case (420) consists of a machine shell (421), a steering wheel shaft (422), an output shaft I (423), an output shaft II (424), an electromagnetic clutch (425), a steering wheel (426) and a steering pull wire (490); wherein, the machine shell (421) is orderly and fixedly arranged on a preset position in the cab through a fastening bolt; the upper end of the steering wheel shaft (422) extends out of the shell (421) and is orderly connected with a steering wheel through a steering column, the surface of the middle part of the steering wheel shaft is provided with a spline, and the other end of the steering wheel shaft is orderly inserted into an insertion hole of the output shaft I (423); the end face of one end of the output I shaft (423) is orderly provided with synchronous teeth corresponding to the internal teeth of the central hole of the combining sleeve, the central position of the output I shaft is provided with a plug hole, and the other end of the output I shaft orderly extends out of the machine shell (421) and is orderly connected with a steering engine through a connecting rod; one end of the output II shaft (424) extending out of the shell (421) is connected with a steering wheel (426) in order; the electromagnetic clutch (425) comprises a driving friction plate, a driven friction plate, a sleeve, a coil, an iron core, an armature, a ring-shaped spring and a slip ring; a plurality of groups of pull wire holes with symmetrical positions are orderly formed on the steering wheel (426); one end of each of the two steering pull wires (490) is orderly fixed in two pull wire holes on the steering wheel (426), and the other end is orderly connected with a steering spray head (460) at the tail of the water surface propeller (280) or a steering rudder of the propeller; the steering master cylinder (430) comprises a left master cylinder (431) and a right master cylinder (432), wherein the left master cylinder (431) and the right master cylinder (432) are sequentially and fixedly arranged on two sides of the steering cam (413) respectively, and respective pistons of the left master cylinder (431) and the right master cylinder (432) are tightly attached to the steering cam (413) respectively in a close contact manner; the steering brake (440) comprises a left brake (441) and a right brake (442), the left brake (441) is orderly arranged on an output left half shaft (19) on the differential steering box (250), and the right brake (442) is orderly arranged on an output right half shaft (20) on the differential steering box (250); the brake of the left brake (441) is controlled by a left master pump (431), and the brake of the right brake (442) is controlled by a right master pump (432); the two hydraulic lines A (450) are respectively and sequentially connected with a left brake (441) and a right brake (442); the hydraulic line B (480) is orderly connected with a reversing bucket (470) of the water surface propeller (280).

7. An 8x8 light-duty high-speed amphibious vehicle according to claim 1, characterized in that two power transmission modes of one machine and one pump and two pumps are set; two operation modes of land driving or water surface operation can be conveniently realized through the power distribution box (230); wherein, the power transmission route in the land driving mode is as follows: the torque of the engine assembly (210) passes through the transmission assembly (220), the transmission joint (231), the power distribution box (240), the main transmission shaft (232), the differential speed steering box (250), the main transmission shaft (232), the reversing transmission box (260), the side transmission shaft (234) and the transmission half shaft (235) and simultaneously drives eight wheel assemblies (270) to sequentially run; in the water surface operation mode of the one-machine double-pump system: through manual control, the eight wheel assemblies (270) are respectively lifted upwards by more than 200 mm through the electric hydraulic cylinders (155); the two hydrofoil assemblies (371) are unfolded from a folded state to a horizontal position; the hydraulic clutch in the power distribution box (240) enters a 'supercharging state', and the engine torque is only transmitted to the two pump impeller output shafts in the power distribution box (240) and directly drives the two water surface propellers (280) to run at a high speed through the two pump impeller transmission shafts (233).

8. An 8x8 light-duty high-speed amphibious vehicle as claimed in claim 1, wherein when the vehicle enters "surface running" mode, the wheel lift control device (620) is manually operated to make the electrohydraulic cylinder (155) contract inwards, the shock absorber assembly (151) and the lower swing arm (153) are pulled through the rotating arm (154), and the wheel assembly (270) and the hub connecting plate assembly (271) sequentially connected with the upper swing arm (152) and the lower swing arm (153) are rapidly lifted upwards by more than 200 mm centering on the pin shaft on the lower swing arm seat (123), and at this time, the electrohydraulic cylinder (155) enters self-locking state; when the vehicle returns to the 'land running' mode, the wheel lifting control device (620) and the electro-hydraulic cylinder (155) are manually operated to release self-locking and extend outwards to the initial setting position, so that the shock absorber assembly (151) and the lower swing arm (153) are driven to reversely rotate together, the hub connecting plate assembly (271) and the wheel assembly (270) thereof are enabled to orderly descend until the wheel assembly returns to the initial setting position, and at the moment, the electro-hydraulic cylinder (155) enters the self-locking state again.

Images