All-terrain vehicle

Abstract

The utility model provides an all-terrain vehicle, relates to the technical field of vehicles, and aims at solving the technical problems that a transmission system of a current all-terrain vehicle is complex in structure and low in assembly efficiency. The all-terrain vehicle comprises a vehicle frame, a power system, a fuel system, the transmission system and a battery; an oil tank and a battery of the fuel system are respectively arranged in the middle space of the frame, and the battery is parallel to the oil tank; the power system is arranged in the rear space of the workshop and comprises an engine and a gearbox in transmission connection with the engine. The transmission system comprises a front transmission shaft, a front axle and two rear half shafts. The front axle is connected with the first end of the front transmission shaft. The second end of the front transmission shaft penetrates through the battery and the bottom of the oil tank and is connected with one output end of the gearbox. And the other output end of the gearbox is respectively connected with the two rear half shafts. According to the all-terrain vehicle, the structure of the transmission system can be simplified, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an all-terrain vehicle. Background Art

[0002] All-terrain vehicles have good off-road performance and are gradually becoming suitable for activities such as sports and leisure and racing.

[0003] The all-terrain vehicle includes a frame power system and a transmission system, wherein along the travel direction of the all-terrain vehicle, the frame includes a front space, a middle space and a rear space in sequence, the power system includes an engine, and the engine is arranged in the middle space, and the transmission system includes a front transmission shaft and a rear transmission shaft, wherein one end of the front transmission shaft and the rear transmission shaft are respectively connected to the engine, and the other end is respectively connected to the front axle assembly and the rear axle assembly to transmit the power of the engine to the front axle assembly and the rear axle assembly. However, the transmission system structure of the current all-terrain vehicle is complex and the assembly efficiency is low. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides an all-terrain vehicle, which can simplify the structure of the transmission system and improve assembly efficiency.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] An embodiment of the present application provides an all-terrain vehicle, including a frame, a power system, a fuel system, a transmission system and a battery; along a first direction, the frame includes a front space, a middle space and a rear space; the fuel system includes a fuel tank, the fuel tank is arranged in the middle space, and the fuel tank is at least partially installed on the chassis of the frame; the battery is arranged in the middle space, the battery and the fuel tank are arranged in parallel, and the battery is installed above the chassis of the frame; the power system is arranged in the rear space, and the power system includes an engine and a gearbox connected to it; the transmission system includes a front drive shaft, a front axle assembly, and a rear axle assembly, wherein the front axle assembly includes a front axle, and the front axle is connected to the first end of the front drive shaft; the second end of the front drive shaft extends along the first direction and passes through the bottom of the battery and the fuel tank, and is connected to an output end of the gearbox; the rear axle assembly includes two rear half shafts, and the two rear half shafts are respectively connected to the other output end of the gearbox.

[0007] In one possible implementation, the engine includes an output crankshaft, and the gearbox includes an input main shaft; the power system also includes a transmission, and along a first direction, the transmission is arranged on the rear side of the engine, and along a second direction, the transmission is arranged on the same side of the engine and the transmission; the transmission is respectively connected to the output crankshaft and the input main shaft, and is used to adjust the torque and speed of the input main shaft of the transmission.

[0008] In one possible implementation, the transmission is configured as a continuously variable transmission, which includes a driving wheel, a driven wheel and a synchronous belt; the driving wheel is connected to the output crankshaft, and the two rotate synchronously, the driven wheel is connected to the input main shaft, and the two rotate synchronously; the synchronous belt connects the driving wheel and the driven wheel, and the driving wheel and the driven wheel rotate synchronously.

[0009] In a possible implementation, the gearbox further includes a countershaft, an intermediate shaft, a front output gear shaft, a front output driven bevel gear shaft and a rear output gear shaft; the input main shaft is connected to the countershaft by meshing gears, and the countershaft is connected to the intermediate shaft by meshing gears; the intermediate shaft is connected to the front output gear shaft and the rear output gear shaft respectively, and the front output gear shaft is connected to the front output driven bevel gear shaft; the front output driven bevel gear shaft is configured as the output end of the gearbox, which is connected to the front drive shaft, and the rear output gear shaft is configured as the other output end of the gearbox, and is connected to the two rear half shafts respectively.

[0010] In a possible implementation, the rear output gear shaft is a hollow shaft; the rear output gear shaft is provided with a first transmission tooth segment and a second transmission tooth segment, the first transmission tooth segment and the second transmission tooth segment are arranged at intervals along the axial direction of the rear output gear shaft; the first transmission tooth segment and the second transmission tooth segment are respectively connected to the two rear half shafts in driving connection.

[0011] In a possible implementation, the engine further includes a cylinder head cover; along the third direction, the center of gravity of the cylinder head cover is located between the output crankshaft and the input main shaft.

[0012] In a possible implementation, one end of the front transmission shaft is connected to the front axle to form a universal joint structure.

[0013] In a possible implementation, along the second direction, the front drive shaft is located on one side of the gearbox; the front drive shaft extends obliquely along the first direction, and the angle between it and the first direction is an obtuse angle, and the angle range of the obtuse angle is between 115° and 150°.

[0014] In one possible implementation, the fuel tank includes a first part and a second part that are connected; along the first direction, the first part is arranged in front of the second part; along the second direction, the first part protrudes from the second part, and a storage space is enclosed therebetween, and the second part is connected to the chassis of the frame; the battery is disposed in the storage space.

[0015] In a possible implementation, along the third direction, the bottom of the second part is located below the bottom of the first part; the bottom of the first part maintains a distance from the chassis of the frame, and a avoidance portion is formed between the bottom of the first part and the chassis of the frame; the avoidance portion cooperates with the front drive shaft, and the front drive shaft passes through the avoidance portion.

[0016] Compared with the related art, the all-terrain vehicle provided in the embodiment of the present application has the following advantages:

[0017] The all-terrain vehicle provided in the embodiment of the present application has a power system arranged in the rear space, and the power system includes an engine and a gearbox drivingly connected to the engine, wherein one output end of the gearbox is drivingly connected to the front drive shaft of the transmission system, and the front drive shaft is drivingly connected to the front axle to transmit part of the power to the front axle; the other output end of the gearbox is drivingly connected to the two rear half shafts of the rear axle assembly to transmit part of the power to the rear half shafts.

[0018] Compared with the solution in the related art that the power system is arranged in the middle space and the power system is transmitted to the rear axle assembly through the rear drive shaft, the all-terrain vehicle provided in the embodiment of the present application eliminates the rear drive shaft and the rear axle, and is respectively connected to the output end of the gearbox through two rear half shafts to receive power from the engine. This arrangement simplifies the transmission system structure and improves assembly efficiency and transmission efficiency.

[0019] Furthermore, the front drive shaft is arranged at the bottom of the battery and the fuel tank, and the battery and the fuel tank are arranged in the middle space and in parallel. This arrangement can reduce the height of the battery arrangement, lower the overall center of gravity of the all-terrain vehicle, effectively reduce the risk of the all-terrain vehicle rolling over when turning, and improve driving safety.

[0020] In addition to the technical problems solved by the embodiments of the present disclosure, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of the technical solutions described above, other technical problems that can be solved by the all-terrain vehicle provided by the embodiments of the present disclosure, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A front view of an all-terrain vehicle from one perspective provided in an embodiment of the present application;

[0023] Figure 2 A front view of the all-terrain vehicle provided in an embodiment of the present application from another perspective;

[0024] Figure 3 A schematic diagram of the layout of the fuel tank and power system provided in the embodiment of the present application on the vehicle frame;

[0025] Figure 4 A top view of the transmission system and power system provided in the embodiment of the present application Figure 1 ;

[0026] Figure 5 A top view of the transmission system and power system provided in the embodiment of the present application Figure 2 ;

[0027] Figure 6 A front view of the transmission system and power system transmission connection provided in the embodiment of the present application Figure 1 ;

[0028] Figure 7 A top view of the transmission system and power system transmission connection provided in the embodiment of the present application Figure 1 ;

[0029] Figure 8 Transmission system and power system transmission connection provided in the embodiment of the present application Figure 2 ;

[0030] Fig. 9 A top view of the transmission system and power system transmission connection provided in the embodiment of the present application Figure 2 ;

[0031] Fig.10 A schematic diagram of the arrangement of the fuel tank on the vehicle frame provided in an embodiment of the present application;

[0032] Fig.11 Schematic diagram of the arrangement of batteries and fuel tanks provided in the embodiment of the present application Figure 1 ;

[0033] Fig.12 Schematic diagram of the arrangement of batteries and fuel tanks provided in the embodiment of the present application Figure 2 .

[0034] Description of reference numerals:

[0035] 10-frame; 10a-front space; 10b-middle space; 10c-rear space;

[0036] 11-first main beam; 12-second main beam; 13-support beam; 14-front wheel support; 15-rear wheel support;

[0037] 20-Fuel system;

[0038] 21- fuel tank; 211- first part; 212- second part;

[0039] 30- Power system;

[0040] 31-engine; 311-output crankshaft;

[0041] 32-Gearbox;

[0042] 321-input main shaft; 322-counter shaft; 323-intermediate shaft; 324-front output gear shaft; 325-front output driven bevel gear shaft; 326-rear output gear shaft;

[0043] 33- Transmission;

[0044] 331-driving wheel; 332-driven wheel; 333-synchronous belt;

[0045] 40- Transmission system;

[0046] 41-front drive shaft; 42-front axle; 43-front half shaft; 44-rear half shaft;

[0047] 50-battery;

[0048] 60- Walking system;

[0049] 61-front wheel; 62-rear wheel;

[0050] 100-All-terrain vehicle. DETAILED DESCRIPTION

[0051] As described in the background technology, the transmission system of the all-terrain vehicle in the related technology has technical problems of complex structure and low assembly efficiency. The inventors have found that the reason for this problem is that the power system of the all-terrain vehicle in the related technology is arranged at a position near the center of the all-terrain vehicle.

[0052] For example, the frame of the all-terrain vehicle includes a front space, a middle space and a rear space, the power system includes an engine, the engine is arranged in the middle space, and the transmission system includes a front transmission shaft and a rear transmission shaft, wherein one end of the front transmission shaft and the rear transmission shaft are respectively connected to the engine, and the other end is respectively connected to the front axle assembly and the rear axle assembly. However, this transmission system has a complex structure, a large number of parts and a complex structure, which increases the difficulty of assembly and leads to low assembly efficiency.

[0053] In response to the above technical problems, an embodiment of the present application provides an all-terrain vehicle, whose power system is installed in the rear space of the frame, and the power system includes an engine and a gearbox connected to the engine, wherein one output end of the gearbox is connected to the front drive shaft of the transmission system, and the front drive shaft is connected to the front axle to transmit part of the power to the front axle; the other output end of the gearbox is connected to the two rear half shafts of the rear axle assembly to transmit part of the power to the rear half shafts.

[0054] The all-terrain vehicle provided in the embodiment of the present application eliminates the rear drive shaft and the rear axle, and is connected to the output end of the gearbox through two rear half shafts to receive power from the engine. This arrangement simplifies the transmission system structure and improves assembly efficiency and transmission efficiency.

[0055] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0056] To facilitate the description of the embodiments of the present application, the coordinate system in the accompanying drawings is explained, wherein the X-axis direction is the first direction, which can be defined as the driving direction of the all-terrain vehicle; the Y-axis direction is the second direction, which can be defined as the width direction of the all-terrain vehicle; and the Z-axis direction is the third direction, which can be defined as the height direction of the all-terrain vehicle.

[0057] like Figures 1 to 3 As shown, the all-terrain vehicle 100 provided in the embodiment of the present application includes:

[0058] The frame 10 may be a frame structure and has an installation space. Along a first direction, the installation space of the frame 10 is divided into a front space 10a, a middle space 10b and a rear space 10c.

[0059] Exemplarily, the vehicle frame 10 in the embodiment of the present application includes two first main beams 11, two second main beams 12 and a plurality of support beams 13; wherein the first main beams 11 and the second main beams 12 may be weldable square tubes or round tubes.

[0060] Along the third direction, the two first main beams 11 are located at the top of the frame 10, and along the second direction, the two first main beams 11 are arranged at intervals on the left and right sides of the frame. The two second main beams 12 are located at the bottom of the frame 10, and along the second direction, the two second main beams 12 are arranged at intervals on the left and right sides of the frame 10. Further, the two first main beams 11 correspond to the two second main beams 12 one by one, that is, a first main beam 11 is arranged above each second main beam 12.

[0061] Multiple support beams 13 are arranged along the third direction, and each support beam 13 is connected between the corresponding first main beam 11 and the second main beam 12. Each support beam 13 and the first main beam 11 and the second main beam 12 respectively enclose a front space 10a, a middle space 10b and a rear space 10c.

[0062] The power system 30 is arranged in the rear space 10c, and the power system 30 is fixed on the chassis of the frame 10. For example, the power system 30 includes an engine 31 and a gearbox 32, wherein the engine 31 is used to provide power to the all-terrain vehicle 100 so that the all-terrain vehicle 100 moves forward, backward, etc. The engine 31 is connected to the gearbox 32 in a transmission manner, and the gearbox 32 has a plurality of transmission shafts and gear assemblies with different transmission ratios, which can receive and adjust the output torque and speed from the engine 31.

[0063] It is understandable that the power of the engine 31 can be transmitted to the travel system 60 of the all-terrain vehicle 100 through the transmission system 40. The travel system 60 provided in the embodiment of the present application includes wheels, which can be divided into front wheels 61 and rear wheels 62 according to the installation positions of the wheels; accordingly, the frame 10 is provided with a front wheel support 14 and a rear wheel support 15, wherein the front wheel 61 can be installed at the front end of the frame 10 through the front wheel support 14, and the rear wheel 62 is installed at the rear end of the frame 10 through the rear wheel support 15. The power generated by the power system 30 can be distributed to the wheels through the transmission system 40, and drive the wheels to rotate.

[0064] like Figure 4 and Figure 5 As shown, the transmission system 40 includes a front drive shaft 41, a front axle assembly, and a rear axle assembly, wherein the front axle assembly is arranged in the front space 10a, and the front axle assembly includes a front axle 42 and two front half-axles 43, and the two front half-axles 43 are respectively arranged on the left and right sides of the front axle 42 along the second direction, and the first ends of the two front half-axles 43 are respectively connected to the front axle 42 in driving connection, and the second ends of the two front half-axles 43 are respectively connected to the front wheels 61.

[0065] The rear axle assembly is arranged in the rear space 10c, and the rear axle assembly includes two rear half shafts 44. Along the second direction, one end of the two rear half shafts 44 is located in the gearbox 32 and is transmission-connected to the output end of the gearbox 32, that is, the first ends of the two rear half shafts 44 are respectively transmission-connected to an output end of the gearbox 32, and the second ends of the two rear half shafts 44 are respectively connected to the rear wheels 62.

[0066] Furthermore, the front drive shaft 41 is arranged along the first direction, the first end of the front drive shaft 41 extends to the front space and is transmission-connected to the front axle 42 , and the second end of the front drive shaft 41 extends to the rear space and is transmission-connected to the other output end of the gearbox 32 .

[0067] It should be noted that the two output ends of the gearbox 32 can be output components located on different output shafts, such as output gears; or, the two output ends of the gearbox 32 can be different output components arranged on the same output shaft, such as output gears, etc., and the embodiments of the present application are not limited to this.

[0068] In the embodiment of the present application, the power system 30 distributes power to the travel system 60 through the transmission system 40. The specific path is as follows: the power generated by the engine 31 is transmitted to the gearbox 32. After being adjusted by the gearbox 32, part of the power can be transmitted to the front drive shaft 41 through its output end, and distributed to the two front half shafts 43 through the front drive shaft 41 and the front axle 42, further driving the front wheels 61 to rotate. And part of the power can be transmitted to the two rear half shafts 44 through its other output end, and further transmitted to the two rear wheels 62.

[0069] Compared with the solution in the related art that the power system is arranged in the middle space and the power system is transmitted to the rear axle assembly through the rear drive shaft, the all-terrain vehicle provided in the embodiment of the present application eliminates the rear drive shaft and the rear axle, and is connected to the output end of the gearbox through two rear half shafts to receive power from the engine. This arrangement simplifies the structure of the transmission system 40, thereby reducing the components of the power system and improving the assembly efficiency and transmission efficiency.

[0070] like Figures 6 to 9 As shown, the power system 30 provided in the embodiment of the present application also includes a transmission 33, which is arranged between the engine 31 and the gearbox 32, and the transmission 33 can further adjust the torque and speed output by the engine 31 and then input them into the gearbox 32.

[0071] Exemplarily, the engine 31, the gearbox 32 and the transmission 33 are all arranged in the rear space 10c of the vehicle frame 10. In the first direction, the gearbox 32 is arranged on the rear side of the engine 31, and in the second direction, the transmission 33 is arranged on the same side of the engine 31 and the gearbox 32. The engine 31 includes an output crankshaft 311, and the gearbox 32 includes an input main shaft 321, wherein the output crankshaft 311 and the input main shaft 321 are respectively connected to the transmission 33 in a transmission manner, that is, the output torque of the engine 31 is transmitted to the transmission 33 through its output crankshaft 311, and is transmitted to the input main shaft 321 through the transmission 33, and the transmission 33 can adjust the torque and speed of the input main shaft 321.

[0072] Preferably, the transmission 33 provided in the embodiment of the present application is configured as a continuously variable transmission, and the transmission 33 includes a driving wheel 331, a driven wheel 332 and a synchronous belt 333, wherein the driving wheel 331 is connected to the output crankshaft 311 of the engine 31, and the driving wheel 331 rotates synchronously with the output crankshaft 311; the driven wheel 332 is arranged on the rear side of the driving wheel 331 along the first direction, and the driven wheel 332 is connected to the input main shaft 321 of the gearbox 32, and the driven wheel 332 rotates synchronously with the input main shaft 321.

[0073] The synchronous belt 333 may be a belt, and the synchronous belt 333 is wound around the driving wheel 331 and the driven wheel 332 to make the driving wheel 331 and the driven wheel 332 rotate synchronously. It is understood that the output torque of the engine 31 is transmitted to the driving wheel 331 through its output crankshaft 311, and is transmitted to the driven wheel 332 through the synchronous belt 333, and is transmitted to the input main shaft 321 through the driven wheel 332. In this way, the torque and speed input to the input main shaft 321 can be adjusted by the transmission 33.

[0074] The gearbox 32 provided in the embodiment of the present application further includes a countershaft 322, an intermediate shaft 323, a front output gear shaft 324, a front output driven bevel gear shaft 325 and a rear output gear shaft 326; wherein the countershaft 322 is transmission-connected with the input main shaft 321 of the gearbox 32, for example, the countershaft 322 is transmission-connected with the input main shaft 321 through a meshing gear assembly. The countershaft 322 and the intermediate shaft 323 are transmission-connected through a meshing gear assembly, that is, the torque of the input main shaft 321 of the gearbox 32 can be transmitted to the countershaft 322 and the intermediate shaft 323 in sequence, and the input main shaft 321, the countershaft 322 and the intermediate shaft 323 can rotate synchronously.

[0075] It should be noted that the gearbox 32 includes a housing, and the input main shaft 321, the counter shaft 322, the intermediate shaft 323, the front output gear shaft 324, the front output driven bevel gear shaft 325 and the rear output gear shaft 326 are rotatably disposed in the housing.

[0076] Furthermore, the intermediate shaft 323 extends along the second direction, and a plurality of gears are provided on the intermediate shaft 323. The plurality of gears are arranged along the axial direction thereof, and each gear represents a different transmission ratio. The intermediate shaft 323 can change the rotation speed and torque by changing the position of the gears left and right.

[0077] The intermediate shaft 323 in the embodiment of the present application is respectively connected to the front output gear shaft 324 and the rear output gear shaft 326. For example, the gears on the intermediate shaft 323 can be respectively meshed with the gears on the front output gear shaft 324 and the gears of the rear output gear shaft 326. The front output gear shaft 324 is connected to the front output driven bevel gear shaft 325, which can be configured as the output end of the gearbox 32 and is used for connecting to the front transmission shaft 41; the rear output gear shaft 326 is configured as the other output end of the gearbox 32, which can be connected to the two rear half shafts 44 respectively.

[0078] In this arrangement, the output torque from the engine 31 is transmitted to the intermediate shaft 323 via the input main shaft 321 and the secondary shaft 322 of the gearbox 32, and part of the torque is transmitted to the front output gear shaft 324, and is transmitted to the front drive shaft 41 via the front output driven bevel gear shaft 325, and part of the torque is transmitted to the rear output gear shaft 326, and is further transmitted to the two rear half shafts 44, thereby achieving the distribution of the output torque to the front wheels 61 and the rear wheels 62.

[0079] On the basis of the above embodiment, the rear output gear shaft 326 provided in the embodiment of the present application is a hollow shaft, a gear is arranged on the outside of the rear output gear shaft 326, a first transmission gear segment and a second transmission gear segment are arranged on the inside of the rear output gear shaft 326, and the first transmission gear segment and the second transmission gear segment are arranged at intervals along the axial direction of the rear output gear shaft 326, wherein the first transmission gear segment is transmission-connected to one rear half shaft 44, and the second transmission gear segment is transmission-connected to the other rear half shaft 44. With such a configuration, the rear axle and the rear transmission shaft can be eliminated, and the two rear half shafts are transmission-connected to the output ends of the gearbox respectively.

[0080] Furthermore, the engine 31 also includes a cylinder head cover. In order to optimize the layout of the power system 30 in the rear space 10c, along the third direction, the projection point of the center of gravity of the cylinder head cover of the engine 31 relative to the projection plane is located between the output crankshaft 311 and the input main shaft 321 of the engine 31. The projection plane is the plane where the first direction and the second direction are located, and the plane is parallel to the chassis of the frame.

[0081] In the embodiment of the present application, the distance between the input main shaft 321 of the gearbox 32 and the front half shaft 43 of the front axle assembly is the first distance, which refers to the distance between the two in the first direction; the distance between the input main shaft 321 of the gearbox 32 and the rear half shaft 44 is the second distance, which refers to the distance between the two in the first direction, and the ratio of the first distance to the second distance is greater than 6. In this way, the center of gravity of the power system 30 is arranged at a position behind the center of the front and rear wheel shafts, which can further shorten the engine exhaust emission path, reduce the range of exhaust heat damage, and improve the driving experience.

[0082] See also Figure 4 The front transmission shaft 41 provided in the embodiment of the present application is arranged on one side of the gearbox 32 along the second direction, and the front transmission shaft 41 extends obliquely along the first direction, and the angle α formed between the front transmission shaft 41 and the first direction is an obtuse angle, and the angle range is between 115° and 150°. Preferably, the inclination angle of the front transmission shaft 41 is 120°.

[0083] Furthermore, one end of the front transmission shaft 41 is connected to the front output driven bevel gear shaft 325 of the gearbox 32, and the other end is connected to the front axle 42 to form a universal joint structure. This arrangement facilitates the staggered installation of the front transmission shaft 41 and the front axle 42, reduces the requirements for the connection position of the front transmission shaft 41 and the front axle 42, and improves assembly efficiency.

[0084] like Figures 10 to 12 As shown, the all-terrain vehicle provided in the embodiment of the present application further includes a fuel system 20, which is used to supply fuel to the combustion chamber of the engine 31. The fuel system 20 includes a fuel tank 21 and a fuel supply pipeline connected to the fuel tank, wherein the fuel tank 21 is arranged in the middle space 10b, and part of the fuel tank 21 is fixed to the chassis of the frame 10.

[0085] For example, the fuel tank 21 is configured as a special-shaped fuel tank, the bottom of part of the fuel tank 21 can contact and be fixedly connected to the chassis of the frame 10, and the bottom of part of the fuel tank 21 is located above the chassis and maintains a distance from the chassis of the frame 10.

[0086] The all-terrain vehicle provided in the embodiment of the present application further includes a battery 50, which is used to supply power to various components of the all-terrain vehicle 100. The battery 50 can be a storage battery or other types of batteries, which are not limited in the embodiment of the present application. The battery 50 is arranged in the middle space 10b, and the battery 50 is installed above the chassis of the frame.

[0087] For example, the vertical distance L between the bottom of the battery 50 and the chassis of the frame 10 is in the range of 130 mm to 170 mm. Preferably, the vertical distance between the bottom of the battery 50 and the chassis of the frame 10 is 150 mm. Such a configuration can not only lower the center of gravity of the battery 50, but also ensure the height of the battery 50, prevent the battery 50 from being corroded by ground water vapor, and improve the life of the battery 50.

[0088] Furthermore, in the embodiment of the present application, the battery 50 is arranged in parallel with the fuel tank 21. The so-called "parallel arrangement" means that the battery 50 and the fuel tank 21 are parallel in at least the first direction and / or the second direction, or the projections of the two in the first direction and / or the second direction have overlapping parts. For example, along the first direction, the battery 50 and the fuel tank 21 are arranged in front and back; or along the second direction, the battery 50 and the fuel tank 21 are arranged on the left and right, and the embodiment of the present application is not limited to this.

[0089] In the related art, the battery is arranged under the seat of the all-terrain vehicle and above the fuel tank, which causes the center of gravity of the all-terrain vehicle to be higher and is prone to rollover when turning. However, in the embodiment of the present application, by arranging the fuel tank 21 and the battery 50 in parallel, the center of gravity of the all-terrain vehicle 100 can be lowered, the risk of rollover when the all-terrain vehicle 100 turns can be reduced, and driving safety can be improved.

[0090] On the basis of the above-mentioned embodiment, the fuel tank 21 provided in the embodiment of the present application has a storage space for the battery 50, and the battery 50 is arranged in the storage space, that is, part of the battery 50 is wrapped in the outline of the fuel tank 21. Such a configuration not only realizes the parallel arrangement of the battery 50 and the fuel tank 21, but also optimizes the layout of the all-terrain vehicle 100, making the vehicle as a whole more compact.

[0091] Exemplarily, the fuel tank 21 is configured as a special-shaped fuel tank, and one side of the fuel tank 21 has a accommodating space or an avoidance space, and the accommodating space is coordinated with the outer contour of the fuel tank 21 so that the battery 50 can be arranged in the accommodating space, that is, at least the battery 50 is located in the accommodating space of the fuel tank 21 to reduce the layout space of the two.

[0092] For example, the fuel tank 21 includes a first part 211 and a second part 212 that are connected. Along the first direction, the first part 211 is arranged in front of the second part 212, and the first part 211 smoothly transitions toward the bottom of the second part 212. The bottom of the second part 212 is fixed to the chassis of the frame 10, that is, the bottom of the partial fuel tank 21 is fixedly connected to the chassis of the frame 10.

[0093] Along the second direction, the first side surface of the first portion 211 protrudes from the first side surface of the second portion 212 and encloses a receiving space. In other words, the extension length of the first portion 211 along the second direction is greater than the extension length of the second portion 212 along the second direction, and a certain distance is maintained between the first side surface of the first portion 211 and the first side surface of the second portion 212. This distance can be matched with the length of the battery 50 in the second direction, so that the battery 50 is arranged in the receiving space formed by the first portion 211 and the second portion 212.

[0094] It is understandable that the battery 50 is arranged in the accommodation space, and the bottom of the battery 50 is located above the chassis of the frame 10. In some embodiments, the all-terrain vehicle 100 further includes a support frame, which is located in the accommodation space, and one end of the support frame is connected to the chassis of the frame 10, and the other end of the support frame extends upward along the third direction and extends to the bottom of the battery 50, and then the bottom of the battery 50 is connected to the support frame, that is, the battery 50 is installed above the chassis of the frame. In this way, a space for avoiding can be formed between the bottom of the battery 50 and the chassis of the frame 10.

[0095] In detail, the second part 212 of the fuel tank 21 is connected to the chassis of the vehicle frame 10, and the first part 211 of the fuel tank 21 maintains a certain distance from the chassis of the vehicle frame 10, that is, along the third direction, the bottom of the second part 212 is located below the bottom of the first part 211. In other words, the bottom height of the second part 212 is less than the bottom height of the first part 211. The bottom of the first part 211 is farther away from the chassis of the vehicle frame 10 than the bottom of the second part 212, and a clearance portion is formed between the chassis of the first part 211 and the chassis of the vehicle frame 10.

[0096] Furthermore, one end of the front drive shaft 41 is transmission-connected to the output end of the gearbox 32 , and the other end of the front drive shaft 41 extends along the first direction toward the front space 10a . The front drive shaft 41 is passed through the avoidance portion and is also located below the first portion 211 and the battery 50 .

[0097] It can be understood that the front transmission shaft 41 is arranged on one side of the second part 212 along the second direction, and the second part 212 is located below the front transmission shaft 41 along the third direction. As can be seen, the bottom of the second part 212 is at a lower height, and the special-shaped oil tank composed of the first part 211 and the second part 212 can increase its volume when the installation space is limited.

[0098] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0099] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0100] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0101] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0102] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An all-terrain vehicle, characterized in that: Including frame, power system, fuel system, transmission system and battery; Along the first direction, the frame includes a front space, a middle space and a rear space; The fuel system includes a fuel tank, which is arranged in the middle space and at least partially mounted on the chassis of the frame; the battery is arranged in the middle space, the battery is arranged parallel to the fuel tank, and the battery is mounted above the chassis of the frame; The power system is arranged in the rear space, and the power system includes an engine and a gearbox connected thereto; The transmission system includes a front transmission shaft, a front axle assembly, and a rear axle assembly, wherein the front axle assembly includes a front axle, and the front axle is transmission-connected to a first end of the front transmission shaft; a second end of the front transmission shaft extends along a first direction and passes through the bottom of the battery and the fuel tank, and is transmission-connected to an output end of the gearbox; The rear axle assembly includes two rear half shafts, and the two rear half shafts are respectively connected to the other output end of the gearbox in driving connection.

2. The all-terrain vehicle according to claim 1, characterized in that: The engine includes an output crankshaft, and the gearbox includes an input main shaft; The power system further comprises a transmission, wherein the transmission is arranged at the rear side of the engine along a first direction, and the transmission is arranged at the same side of the engine and the transmission along a second direction; The transmission is respectively connected to the output crankshaft and the input main shaft in driving connection, and is used to adjust the torque and rotation speed of the input main shaft.

3. The all-terrain vehicle according to claim 2, characterized in that: The transmission is configured as a continuously variable transmission, which includes a driving wheel, a driven wheel and a synchronous belt; The driving wheel is connected to the output crankshaft, and the two rotate synchronously; the driven wheel is connected to the input main shaft, and the two rotate synchronously; The synchronous belt connects the driving wheel and the driven wheel, and the driving wheel and the driven wheel rotate synchronously.

4. The all-terrain vehicle according to claim 3, characterized in that: The gearbox also includes a countershaft, an intermediate shaft, a front output gear shaft, a front output driven bevel gear shaft and a rear output gear shaft; The input main shaft is connected to the countershaft through meshing gears, and the countershaft is connected to the intermediate shaft through meshing gears; The intermediate shaft is respectively connected to the front output gear shaft and the rear output gear shaft in driving connection, and the front output gear shaft is connected to the front output driven bevel gear shaft in driving connection; The front output driven bevel gear shaft is configured as the output end of the gearbox, which is drivingly connected to the front drive shaft. The rear output gear shaft is configured as the other output end of the gearbox, and is drivingly connected to the two rear half shafts respectively.

5. The all-terrain vehicle according to claim 4, characterized in that: The rear output gear shaft is a hollow shaft; The rear output gear shaft is provided with a first transmission tooth segment and a second transmission tooth segment, and the first transmission tooth segment and the second transmission tooth segment are arranged at intervals along the axial direction of the rear output gear shaft; The first transmission gear segment and the second transmission gear segment are respectively drivingly connected to the two rear half shafts.

6. The all-terrain vehicle according to claim 4, characterized in that: The engine also includes a cylinder head cover; Along the third direction, the center of gravity of the cylinder head cover is located between the output crankshaft and the input main shaft.

7. The all-terrain vehicle according to claim 1, characterized in that: One end of the front transmission shaft is connected to the front axle to form a universal joint structure.

8. The all-terrain vehicle according to claim 1, characterized in that: Along the second direction, the front transmission shaft is located on one side of the gearbox; The front transmission shaft extends obliquely along a first direction, and an angle between the front transmission shaft and the first direction is an obtuse angle, and an angle range of the obtuse angle is between 115° and 150°.

9. The all-terrain vehicle according to any one of claims 1 to 8, characterized in that: The oil tank comprises a first part and a second part which are connected; The first portion is arranged in front of the second portion along a first direction; Along the second direction, the first part protrudes from the second part, and a receiving space is formed between the two, and the second part is connected to the chassis of the frame; The battery is arranged in the accommodating space.

10. The all-terrain vehicle according to claim 9, characterized in that: Along the third direction, the bottom of the second part is located below the bottom of the first part; The bottom of the first part is spaced apart from the chassis of the frame, and a clearance portion is formed between the bottom of the first part and the chassis of the frame; The avoidance portion cooperates with the front transmission shaft, and the front transmission shaft passes through the avoidance portion.

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