CN114802462B - All-terrain vehicle - Google Patents

All-terrain vehicle Download PDF

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Publication number
CN114802462B
CN114802462B CN202210500418.3A CN202210500418A CN114802462B CN 114802462 B CN114802462 B CN 114802462B CN 202210500418 A CN202210500418 A CN 202210500418A CN 114802462 B CN114802462 B CN 114802462B
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China
Prior art keywords
rear wheel
connecting rod
wheel hub
tail
shaft
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Active
Application number
CN202210500418.3A
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Chinese (zh)
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CN114802462A (en
Inventor
朱恩洲
唐岩松
吴星
龙佳庆
李海青
李贝
陈志勇
陈丽宇
刘奇
贾金志
赵远威
蒙国雍
梁朝政
郭馨嶷
代志龙
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Liuzhou Vocational and Technical College
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Liuzhou Vocational and Technical College
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Application filed by Liuzhou Vocational and Technical College filed Critical Liuzhou Vocational and Technical College
Priority to CN202210500418.3A priority Critical patent/CN114802462B/en
Publication of CN114802462A publication Critical patent/CN114802462A/en
Application granted granted Critical
Publication of CN114802462B publication Critical patent/CN114802462B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
    • B62D23/005—Combined superstructure and frame, i.e. monocoque constructions with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001—Arrangements for attachment of dampers
    • B60G13/005—Arrangements for attachment of dampers characterised by the mounting on the axle or suspension arm of the damper unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/12—Cycles; Motorcycles
    • B60G2300/124—Quads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/20—Stationary vehicle

Abstract

The invention provides an all-terrain vehicle which comprises a vehicle frame, a power assembly, a rear wheel system, a rear suspension structure, a front wheel system, a steering system, a front suspension structure and a braking system, wherein the vehicle frame comprises a vehicle body front support, a vehicle body tail support and a U-shaped longitudinal beam, the power assembly is arranged in a power cabin and used for driving the rear wheel system to move, the steering system is arranged in a cockpit and used for driving the front wheel system to steer, the braking system is arranged on the front wheel system and used for braking the front wheel system, the rear suspension structure is connected with the rear wheel system and the vehicle frame, the front suspension structure is connected with the front wheel system and the vehicle body front support, the front suspension structure is a double-fork-arm suspension, and the rear suspension structure is a multi-link suspension. The invention can improve the driving comfort and the operability.

Description

All-terrain vehicle
[ field of technology ]
The invention relates to an all-terrain vehicle.
[ background Art ]
The all-terrain vehicle has good off-road performance, has a wide front tire, can increase the contact area with the ground, generates larger friction force, can reduce the pressure of the vehicle on the ground, and is easy to run on beach, riverbed, forest road, stream and severe desert terrain. Due to the complex and severe conditions of use, it is desirable to provide an all-terrain vehicle that enhances driving comfort and handling.
[ invention ]
The invention aims to provide an all-terrain vehicle which can improve the driving comfort and the steering performance.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides an all-terrain vehicle, includes frame, power component, rear wheel system, rear suspension structure, front wheel system, steering system, front suspension structure and braking system, the frame includes front automobile body support, automobile body afterbody support and U-shaped longeron, front automobile body support with the automobile body afterbody support is fixed in respectively the front and back both sides of U-shaped longeron, U-shaped longeron with front automobile body support is enclosed into the cockpit, U-shaped longeron with automobile body afterbody support is enclosed into the power cabin in the cooperation, power component install in the power cabin for the drive rear wheel system moves, steering system install in the cockpit for the drive front wheel system turns to, braking system install in on the front wheel system for the braking of front wheel system, rear suspension structure connects rear wheel system with the frame, front automobile body support is connected to the front suspension structure, front suspension structure is double-fork arm formula, rear suspension structure is many suspension links.
Preferably, the front wheel system comprises a front wheel hub and a front wheel tire, the front wheel hub comprises a front wheel bogie, a front wheel hub shaft, a front wheel disk and a front wheel rim, the front wheel hub shaft and the front wheel bogie are integrally formed, the front wheel disk is mounted on the front wheel hub shaft through a bearing, the front wheel rim is fixed with the front wheel disk, and the front wheel tire is mounted on the front wheel rim; the steering system comprises a steering wheel, a steering shaft, a steering device and steering half shafts, wherein the steering wheel is arranged in the steering cabin and is installed on the frame through a bracket, the head end of the steering shaft is connected with the steering wheel, the steering device is connected with the tail end of the steering shaft, the steering device comprises two output ends, the number of the steering half shafts is two, the input ends of the steering half shafts are connected with the output ends of the steering device in a one-to-one correspondence manner, the output ends of the steering half shafts are connected with the front wheel system, and the front wheel system is driven to steer.
Preferably, the front bracket of the vehicle body comprises a front bottom frame, a vehicle head frame, a vehicle side guardrail and a roof guardrail, wherein the vehicle head frame is arranged at the front end of the front bottom frame, the front end of the vehicle side guardrail is welded and fixed with the vehicle head frame, the rear end of the vehicle side guardrail is connected with the U-shaped longitudinal beam, the bottom of the vehicle side guardrail is welded and fixed with the front bottom frame, one end of the roof guardrail is welded and fixed with the vehicle side guardrail, one end of the roof guardrail is welded and fixed with the top of the U-shaped longitudinal beam, and the roof guardrail is bent in an L shape and is matched with the vehicle side guardrail and the U-shaped longitudinal beam frame to form an entrance and an exit for a driver to enter and exit the cockpit; the tail support of the car body comprises a tail bottom frame, a tail stop lever and a tail support rod, wherein the head end of the tail bottom frame is fixed with the front bottom frame, and the tail end of the tail bottom frame is suspended; the top of the tail stop lever is welded and fixed with the top of the U-shaped longitudinal beam, and the bottom of the tail stop lever is welded and fixed with the tail end of the tail bottom frame; the tail support rod is connected with the tail baffle rod and the side part of the U-shaped longitudinal beam.
Preferably, the front suspension structure comprises an upper fork arm, a lower fork arm and a front shock absorber, wherein the upper fork arm and the lower fork arm are respectively arranged at the upper end and the lower end of the front wheel bogie, one end of the front shock absorber is hinged with the lower fork arm, and the other end of the front shock absorber is hinged with the vehicle side guardrail.
Preferably, the braking system comprises a brake disc, a brake block mounting bracket and brake blocks, wherein the brake disc is fixed with the front wheel disc, the brake block mounting bracket is fixed with the front wheel bogie, the brake blocks are correspondingly mounted on the brake block mounting bracket, the number of the brake blocks is two, and the two brake blocks are positioned on two opposite sides of the brake disc.
Preferably, the rear suspension structure comprises a first connecting rod, a reinforcing rod, a connecting sheet, a shock absorber, a second connecting rod and a third connecting rod, wherein one end of the first connecting rod is hinged with the U-shaped longitudinal beam, and the other end of the first connecting rod is welded and fixed with the top of the connecting block; one end of the reinforcing rod is welded and fixed with the first connecting rod, the other end of the reinforcing rod is welded and fixed with the bottom of the connecting block, the connecting block is fixed with the rear wheel system, one end of the second connecting rod is hinged with the rear wheel system, and the other end of the second connecting rod is hinged with the tail bracket of the vehicle body; one end of the third connecting rod is hinged with the rear wheel system, the other end of the third connecting rod is hinged with the tail bracket of the vehicle body, and the third connecting rod is arranged below the second connecting rod at intervals in parallel; the first connecting rod, the reinforcing rod, the second connecting rod and the third connecting rod are hollow rod bodies; an included angle is formed between the axis direction of the first connecting rod and the axis of the second connecting rod, and the included angle is an acute angle.
Preferably, the power assembly comprises a driving assembly, a speed reducer and a transmission half shaft, wherein the driving assembly and the speed reducer are both fixed with the tail support of the vehicle body, the rear wheel system comprises a rear wheel hub and a front tire, the front tire is sleeved on the rear wheel hub, the driving assembly is connected with an input shaft of the speed reducer, an input end of the transmission half shaft is connected with an output shaft of the speed reducer, and an output end of the transmission half shaft is connected with the rear wheel hub; the output shaft of the speed reducer comprises two output ends, the two output ends are respectively positioned at two opposite ends of the speed reducer, each transmission half shaft is connected with one output end of the speed reducer, and the connection mode is rear wheel spline connection.
Preferably, the rear wheel hub comprises a front rim, a rear wheel disc, a rear wheel hub shaft, a rear wheel spline and a rear wheel hub bearing, wherein the rear wheel disc is fixed with an inner ring of the front rim, the rear wheel hub shaft is integrally formed with the rear wheel disc, the central axes of the rear wheel hub shaft and the rear wheel hub disc are positioned on the same straight line, the rear wheel spline comprises an integrally formed external thread shaft end and an inner rear wheel spline end, the rear wheel hub shaft is a hollow shaft body, the external thread shaft end is inserted into a hollow area of the rear wheel hub shaft and is in threaded connection with the hollow area, the transmission half shaft is in key connection with the inner rear wheel spline end, and the rear wheel hub bearing is sleeved on the periphery of the rear wheel hub shaft.
Preferably, a first connecting part, a second connecting part, a first hinging part and a second hinging part are arranged on the outer wall of the rear wheel hub shaft, the first connecting part and the second connecting part are positioned on the same side of the rear wheel hub bearing, the first hinging part and the second hinging part are positioned on the same side of the rear wheel hub bearing, and the first connecting part and the first hinging part are positioned on different sides of the rear wheel hub bearing; the top of the connecting block is connected with the first connecting part, and the bottom of the connecting block is connected with the second connecting part; one end of the second connecting rod is hinged with the tail stop lever, and the other end of the second connecting rod is hinged with the first hinge part; one end of the third connecting rod is hinged with the tail baffle rod, and the other end of the third connecting rod is hinged with the second hinge part.
Preferably, the first connecting portion and the second connecting portion are located at one side of the rear wheel hub bearing and symmetrically arranged at the upper end and the lower end of the rear wheel hub bearing, and the first hinge portion and the second hinge portion are located at the other side of the rear wheel hub bearing and symmetrically arranged at the upper end and the lower end of the rear wheel hub bearing.
Compared with the prior art, the all-terrain vehicle provided by the invention has the advantages that the frame comprises the front support of the vehicle body, the tail support of the vehicle body and the U-shaped longitudinal beam, the U-shaped longitudinal beam is used as a core stress part of the frame, the strength of the frame can be improved, the front suspension structure and the rear suspension structure are arranged, the front suspension structure is a double-fork-arm type suspension, the rear suspension structure is a multi-link type suspension, the impact force born by the vehicle body can be well relieved, the vehicle body can maintain a good driving posture, and the driving comfort and the driving operability are improved.
[ description of the drawings ]
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of an ATV according to the present invention;
FIG. 2 is a partially exploded schematic illustration of a rear wheel system and rear suspension mechanism of the ATV;
FIG. 3 is a schematic structural view of the rear suspension structure shown in FIG. 2;
FIG. 4 is a schematic structural view of a rear wheel hub bearing;
FIG. 5 is a schematic illustration of a partially exploded construction of a front wheel system, a money suspension structure of an ATV;
FIG. 6 is a schematic illustration of the connection of the steering system, front wheel system and front suspension structure;
fig. 7 is a schematic structural view of a brake system.
[ detailed description ] of the invention
In order to better understand the technical solution in the embodiments of the present invention and make the above objects, features and advantages of the present invention more obvious, the following detailed description of the present invention will be further described with reference to the accompanying drawings of the present application.
Referring to fig. 1-7 in combination, the present invention provides an all-terrain vehicle 100 comprising a frame 10, a power assembly 20, a rear wheel system 30, a rear suspension structure 40, a front wheel system 50, a steering system 60, a front suspension structure 70, and a brake system 80.
The frame 10 is integrally assembled by adopting hollow steel pipes, so that the dead weight of the all-terrain vehicle can be reduced, the steel pipes are welded and fixed, and the connection strength can be ensured.
The frame 10 comprises a front frame 11, a rear frame 12 and a U-shaped longitudinal beam 13, wherein the front frame 11 and the rear frame 12 are respectively fixed on the front side and the rear side of the U-shaped longitudinal beam 13. The U-shaped longitudinal beam 13 and the vehicle body front support 11 are matched to form a cockpit, and the U-shaped longitudinal beam 13 and the vehicle body tail support 12 are matched to form a power cabin. The power assembly 20 is installed in the power cabin and is used for driving the rear wheel system 30 to move, the steering system 60 is installed in the cockpit and is used for driving the front wheel system 50 to steer, the braking system 80 is installed on the front wheel system 50 and is used for braking the front wheel system 50, the rear suspension structure 40 is connected with the rear wheel system 30 and the frame 10, the front suspension structure 70 is connected with the front wheel system 50 and the front bracket 11 of the vehicle body, the front suspension structure 70 is a double-fork arm type suspension, and the rear suspension structure 40 is a multi-link type suspension.
The vehicle body front bracket 11 includes a front bottom frame 111, a head frame 112, a vehicle side rail 113, and a roof rail 114. The front frame 112 is disposed at the front end of the front bottom frame 111, the front frame 112 is integrally formed by welding four steel pipes end to end, and the rectangular structure has poor stability, and can be deformed or damaged well when being impacted, so as to form an energy absorption effect. The front end of the vehicle side guard rail 113 is welded and fixed to the vehicle head frame 112, the rear end is connected to the U-shaped longitudinal beam 13, and the bottom is welded and fixed to the front bottom frame 111. The roof guardrail 114 one end with car side guardrail 113 welded fastening, one end with the welded fastening of the top of U-shaped longeron 13, roof anticollision barrier 13 is L shape crooked, with car side guardrail 113 with U-shaped longeron 13 frame cooperation encloses into the access & exit, supplies the driver to come in and go out the cockpit.
The tail bracket 12 comprises a tail bottom frame 121, a tail stop lever 122 and a tail support rod 123, wherein the head end of the tail bottom frame 121 is fixed with the front bottom frame 111, and the tail end is suspended; the top of the tail stop lever 122 is welded and fixed with the top of the U-shaped longitudinal beam 13, and the bottom of the tail stop lever 122 is welded and fixed with the tail end of the tail bottom frame 121; the tail strut 123 connects the tail bar 122 and the side of the U-shaped stringer 13 for reinforcing the strength of the tail bar 122.
The power assembly 20 is accommodated in the power cabin and is mounted on the tail bottom frame 121, and the vehicle body stop lever 122 can form protection for the power assembly 20. The all-terrain vehicle is in a rear-drive driving mode, the power assembly 20 is used for directly driving the rear wheel system 30 to move, the rear wheel system 30 serves as a driving wheel, and the front wheel system of the all-terrain vehicle serves as a driven wheel.
The power assembly 20 comprises a driving assembly 21, a speed reducer 22 and a transmission half shaft 23, wherein the driving assembly 21 can be an engine or a motor, the power generated by the driving assembly 21 is firstly input into the speed reducer 22 and then is transmitted to the transmission half shaft 23 through the speed reducer 22, and the transmission half shaft 23 is connected with the rear wheel system 30 to drive the rear wheel system 30 to move. The speed reducer 22 adopts a conventional structure in the field, a pinion is mounted on an input shaft, a bull gear is mounted on an output shaft, the pinion is directly meshed with the bull gear, or a plurality of gears are meshed for transmission, the purpose of increasing torque is achieved through speed reduction, and the speed reducer is better suitable for driving in all terrains.
Specifically, the output shaft of the speed reducer 22 includes two output ends, two output ends are located at two opposite ends of the speed reducer 22, the number of the transmission half shafts 23 is two, each transmission half shaft 23 is connected with one output end, and the connection mode of the transmission half shaft 23 and the output end is: the output end is an inner rear wheel spline, and the input end of the transmission half shaft 23 is connected with the inner rear wheel spline of the output end through a key. By providing two output ends on one output shaft, it is ensured that the movement states of the two drive half shafts 23 remain identical.
The rear wheel system 30 includes a rear wheel hub 31 and a rear wheel tire 32, the rear wheel hub 31 is connected with the transmission half shaft 23, and the rear wheel tire 32 is mounted on the rear wheel hub 31.
The rear wheel hub 31 comprises a rear wheel rim 311, a rear wheel disc 312, a rear wheel hub shaft 313, rear wheel splines 314 and a rear wheel hub bearing 315, the rear wheel hub 312 is fixed with an inner ring of the rear wheel rim 311, the rear wheel hub shaft 313 and the rear wheel hub 312 are integrally formed, the central axes of the rear wheel hub 313 and the rear wheel hub 312 are positioned on the same straight line, the rear wheel splines 314 comprise an integrally formed external thread shaft end and an internal rear wheel spline end, the rear wheel hub shaft 313 is a hollow shaft body, the external thread shaft end is inserted into a hollow area of the rear wheel hub shaft 313 and is in threaded connection with the hollow area, and the transmission half shaft 23 is in key connection with the internal rear wheel spline end. The rear wheel hub bearing 315 is sleeved on the periphery of the rear wheel hub shaft 313, and the rear wheel hub shaft 313 can freely rotate in the rear wheel hub bearing 315.
Specifically, the outer wall of the rear wheel hub bearing 315 is provided with a first connecting portion 3151, a second connecting portion 3152, a first hinge portion 3153 and a second hinge portion 3154. The first and second connection portions 3151 and 3152 are located on the same side of the rear wheel hub bearing 315, the first and second hinge portions 3153 and 3153 are located on the same side of the rear wheel hub bearing 315, and the first and second connection portions 3151 and 3153 are located on different sides of the rear wheel hub bearing 315.
The rear suspension structure 40 includes a first link 41, a reinforcing rod 42, a connection block 43, a rear shock absorber 44, a second link 45, and a third link 46. The first connecting rod 41, the reinforcing rod 42, the second connecting rod 45 and the third connecting rod 46 are hollow rod bodies.
One end of the first connecting rod 41 is hinged with the U-shaped longitudinal beam 13, and the other end of the first connecting rod is fixed with the top of the connecting block 43 in a welding way; one end of the reinforcing rod 42 is welded to the first connecting rod 41, the other end is welded to the bottom of the connecting block 43, and the connecting block 43 is fixed to the rear wheel hub bearing 315.
The reinforcing rod 42 is designed as a diagonal brace, and cooperates with the first connecting rod 41 and the connecting block 43 to form a stable structure of a triangle, so that the strength of the first connecting rod 41 can be greatly enhanced. The reinforcing rod 42, the first connecting rod 41 and the connecting block 43 are fixed by welding to form a rigid structure, so that the movement states of the reinforcing rod 42, the first connecting rod 41 and the connecting block 43 are kept consistent. The rear damper 44 has one end hinged to the first link 41 and the other end hinged to the U-shaped side member 13, and the rear damper 44 is configured to provide a cushioning effect, which may be constructed in a conventional manner in the art. The U-shaped longitudinal beam 13 is used as a core stress component of the frame 10, the rear shock absorber 44 is connected with the U-shaped longitudinal beam 13, a good buffering and releasing force effect can be directly provided for the U-shaped longitudinal beam 13, and a seat in a cockpit directly leans against the U-shaped longitudinal beam 13, so that the driving comfort can be improved. Specifically, the top of the connection block 43 is connected to the first connection portion 3151, and the bottom is connected to the second connection portion 3152.
One end of the second connecting rod 45 is hinged to the rear wheel system 30, the other end of the second connecting rod is hinged to the rear wheel system support 12, one end of the third connecting rod 46 is hinged to the rear wheel system 30, the other end of the third connecting rod 46 is hinged to the rear wheel system support 12, and the third connecting rod 46 is arranged below the second connecting rod 45 at a parallel interval. Specifically, one end of the second link 45 is hinged to the tail bar 122, and the other end is hinged to the first hinge 3153; the third link 46 is hinged to the tail bar 122 at one end and to the second hinge 3154 at the other end.
The second connecting rod 45 and the third connecting rod 46 are mounted on the upper and lower ends of the rear wheel hub bearing 315, and are used for balancing the stress of the upper and lower ends of the rear wheel hub bearing 315.
It should be noted that, the hinge mode of the connecting rod and the rear wheel hub bearing, the setting mode of the hinge point of the connecting rod and the frame can be adopted by the conventional structure in the field, for example, a fish eye ball head is arranged at the end part of the connecting rod, the fish eye ball head is sleeved on the pin shaft, the fish eye ball head can rotate around the pin shaft, and the shake of the all-terrain vehicle in the vertical direction is adapted.
The first connecting rod 41 is connected with the U-shaped longitudinal beam 13, the second connecting rod 45 and the third connecting rod 46 are connected with the tail support 12 of the vehicle body, and the arrangement positions of the first connecting rod, the second connecting rod, the third connecting rod and the tail support 12 are different, so that good buffering effects can be well provided for different positions of the vehicle frame 10, and the purpose of improving driving comfort is achieved.
The front wheel system 50 includes a front wheel hub 51 and a front wheel tire 52, the front wheel tire 52 being mounted on the front wheel hub 51. The front wheel hub 51 includes a front wheel bogie 511, a front wheel hub axle 512, a front wheel disc 513, and a front wheel rim 514, the front wheel hub axle 512 and the front wheel bogie 511 are integrally formed, the front wheel disc 513 is mounted on the front wheel hub axle 512 through bearings, the front wheel rim 514 and the front wheel disc 513 are fixed, and the front wheel tire 52 is mounted on the front wheel rim 514. The front wheel system 50 serves as a driven wheel, and when the rear wheel system 30 moves, the front wheel disc 513 rotates on the front wheel hub shaft 512 to rotate the front wheel rim 514 and the front wheel tire 52.
The steering system 60 includes a steering wheel 61, a steering shaft 62, a steering gear 63, and a steering half shaft 64. The steering wheel 61 is arranged in the cockpit and is mounted on the frame 10 through a bracket, and in particular, the steering wheel 61 is fixed with the roof rail 114 through a bracket; the front end of the steering shaft 62 is connected to the steering wheel 61, and is driven to rotate by the steering wheel 61; the steering gear 63 is connected to the end of the steering shaft 62 for changing the force transmission direction, and the steering gear 63 adopts a conventional structure in the art. The steering gear 63 includes two output ends, the number of the steering half shafts 64 is also two, the input ends of the steering half shafts 64 are connected with the output ends of the steering gear 63 in a one-to-one correspondence manner, and the output ends of the steering half shafts 64 are connected with the front wheel system 50 to drive the front wheel system 50 to steer. Specifically, the output end of the steering half shaft 64 is hinged to the front wheel bogie 511 in a manner that: the output end of the steering half shaft 64 is provided with a fish-eye ball, the side of the front wheel bogie 511 is provided with a hinge plate, the fish-eye ball is clamped between the two hinge plates, and a pin shaft passes through a center hole of the fish-eye ball and is connected with the hinge plates.
The front suspension structure 70 includes an upper fork arm 71, a lower fork arm 72, and a front shock absorber 73, wherein the upper fork arm 71 and the lower fork arm 72 are respectively disposed at the upper and lower ends of the front wheel bogie 511, and specifically, one end of the upper fork arm 71 is hinged to the top of the front wheel bogie 511, and the other end is hinged to the vehicle side guardrail 113; the lower fork arm 72 is hinged at one end to the bottom of the front wheel truck 511 and at the other end to the front bottom frame. The upper yoke 71 and the lower yoke 72 are of a Y-shaped yoke configuration as is conventional in the art. The front damper 73 has one end hinged to the lower fork arm 72 and the other end hinged to the vehicle side rail 113.
The braking system 80 comprises a brake disc 81, a brake block mounting bracket 82 and brake blocks 83, wherein the brake disc 81 is fixed with a front wheel disc 513, the brake block mounting bracket 82 is fixed with the front wheel steering frame 511, the brake blocks 83 are correspondingly mounted on the brake block mounting bracket 82, the number of the brake blocks 83 is two, the two brake blocks 83 are positioned on two opposite sides of the brake disc 81, and when braking is needed, the two brake blocks 83 are close to the brake disc 81 and hug the brake disc 81, so that a braking effect is formed. The driving manner of the brake pad 83 is common knowledge in the art, and this embodiment will not be described in detail.
Compared with the prior art, the all-terrain vehicle provided by the invention has the advantages that the frame comprises the front support of the vehicle body, the tail support of the vehicle body and the U-shaped longitudinal beam, the U-shaped longitudinal beam is used as a core stress part of the frame, the strength of the frame can be improved, the front suspension structure and the rear suspension structure are arranged, the front suspension structure is a double-fork-arm type suspension, the rear suspension structure is a multi-link type suspension, the impact force born by the vehicle body can be well relieved, the vehicle body can maintain a good driving posture, and the driving comfort and the driving operability are improved.
The embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims (7)

1. The all-terrain vehicle is characterized by comprising a vehicle frame, a power assembly, a rear wheel system, a rear suspension structure, a front wheel system, a steering system, a front suspension structure and a braking system, wherein the vehicle frame comprises a front vehicle body support, a rear vehicle body support and U-shaped longitudinal beams, the front vehicle body support and the rear vehicle body support are respectively fixed on the front side and the rear side of the U-shaped longitudinal beams, the U-shaped longitudinal beams and the front vehicle body support are matched and enclosed into a cockpit, the U-shaped longitudinal beams and the rear vehicle body support are matched and enclosed into the power cabin, the power assembly is installed in the power cabin and used for driving the rear wheel system to move, the steering system is installed in the cockpit and used for driving the front wheel system to steer, the braking system is installed on the front wheel system and used for braking the front wheel system, the rear suspension structure is connected with the rear wheel system and the vehicle frame, the front suspension structure is connected with the front vehicle body support, the front suspension structure is of a double-fork arm type structure, and the rear suspension structure is of a multi-suspension structure;
the front support of the automobile body comprises a front bottom frame, a head frame, a side guard rail and a roof guard rail, wherein the head frame is arranged at the front end of the front bottom frame, the head frame is of a rectangular frame type structure and is formed by welding four steel pipes in an end-to-end mode, the front end of the side guard rail is welded and fixed with the head frame, the rear end of the side guard rail is connected with the U-shaped longitudinal beam, the bottom of the side guard rail is welded and fixed with the front bottom frame, one end of the roof guard rail is welded and fixed with the side guard rail, one end of the roof guard rail is welded and fixed with the top of the U-shaped longitudinal beam, and the roof guard rail is bent in an L shape and is matched with the side guard rail and the U-shaped longitudinal beam frame to form an entrance and an exit for a driver to enter and exit the cockpit; the tail support of the car body comprises a tail bottom frame, a tail stop lever and a tail support rod, wherein the head end of the tail bottom frame is fixed with the front bottom frame, and the tail end of the tail bottom frame is suspended; the top of the tail stop lever is welded and fixed with the top of the U-shaped longitudinal beam, and the bottom of the tail stop lever is welded and fixed with the tail end of the tail bottom frame; the tail support rod is connected with the tail baffle rod and the side part of the U-shaped longitudinal beam;
the front suspension structure comprises an upper fork arm, a lower fork arm and a front shock absorber, wherein the upper fork arm and the lower fork arm are respectively arranged at the upper end and the lower end of a front wheel bogie, one end of the front shock absorber is hinged with the lower fork arm, and the other end of the front shock absorber is hinged with the vehicle side guardrail;
the rear suspension structure comprises a first connecting rod, a reinforcing rod, a connecting block, a shock absorber, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged with the U-shaped longitudinal beam, and the other end of the first connecting rod is welded and fixed with the top of the connecting block; one end of the reinforcing rod is welded and fixed with the first connecting rod, the other end of the reinforcing rod is welded and fixed with the bottom of the connecting block, the connecting block is fixed with the rear wheel system, one end of the second connecting rod is hinged with the rear wheel system, and the other end of the second connecting rod is hinged with the tail bracket of the vehicle body; one end of the third connecting rod is hinged with the rear wheel system, the other end of the third connecting rod is hinged with the tail bracket of the vehicle body, and the third connecting rod is arranged below the second connecting rod at intervals in parallel; the first connecting rod, the reinforcing rod, the second connecting rod and the third connecting rod are hollow rod bodies; an included angle is formed between the axis direction of the first connecting rod and the axis of the second connecting rod, and the included angle is an acute angle.
2. The all-terrain vehicle of claim 1, characterized in that the front wheel system comprises a front wheel hub and a front wheel tire, the front wheel hub comprises a front wheel bogie, a front wheel hub axle, a front wheel disc and a front wheel rim, the front wheel hub axle and the front wheel bogie are integrally formed, the front wheel disc is mounted on the front wheel hub axle through a bearing, the front wheel rim is fixed with the front wheel disc, and the front wheel tire is mounted on the front wheel rim; the steering system comprises a steering wheel, a steering shaft, a steering device and steering half shafts, wherein the steering wheel is arranged in the steering cabin and is installed on the frame through a bracket, the head end of the steering shaft is connected with the steering wheel, the steering device is connected with the tail end of the steering shaft, the steering device comprises two output ends, the number of the steering half shafts is two, the input ends of the steering half shafts are connected with the output ends of the steering device in a one-to-one correspondence manner, the output ends of the steering half shafts are connected with the front wheel system, and the front wheel system is driven to steer.
3. The all-terrain vehicle of claim 2, wherein the braking system comprises a brake disc, a brake pad mounting bracket and brake pads, the brake disc is fixed with the front wheel disc, the brake pad mounting bracket is fixed with the front wheel bogie, the brake pads are correspondingly mounted on the brake pad mounting bracket, the number of the brake pads is two, and the two brake pads are positioned on two opposite sides of the brake disc.
4. The all-terrain vehicle of claim 3, wherein the power assembly comprises a driving assembly, a speed reducer and a transmission half shaft, the driving assembly and the speed reducer are both fixed with the vehicle body tail support, the rear wheel system comprises a rear wheel hub and a rear tire, the rear tire is sleeved on the rear wheel hub, the driving assembly is connected with an input shaft of the speed reducer, an input end of the transmission half shaft is connected with an output shaft of the speed reducer, and an output end of the transmission half shaft is connected with the rear wheel hub; the output shaft of the speed reducer comprises two output ends, the two output ends are respectively positioned at two opposite ends of the speed reducer, each transmission half shaft is connected with one output end of the speed reducer, and the connection mode is rear wheel spline connection.
5. The all-terrain vehicle of claim 4, wherein the rear wheel hub comprises a rear rim, a rear wheel disc, a rear wheel hub shaft, a rear wheel spline and a rear wheel hub bearing, the rear wheel disc is fixed with an inner ring of the rear rim, the rear wheel hub shaft and the rear wheel disc are integrally formed, the central axes of the rear wheel hub shaft and the rear wheel disc are positioned on the same straight line, the rear wheel spline comprises an integrally formed external thread shaft end and an inner rear wheel spline end, the rear wheel hub shaft is a hollow shaft body, the external thread shaft end is inserted into a hollow area of the rear wheel hub shaft and is in threaded connection with the hollow area, the transmission half shaft is in key connection with the inner rear wheel spline end, and the rear wheel hub bearing is sleeved on the periphery of the rear wheel hub shaft.
6. The all-terrain vehicle of claim 5, characterized in that the outer wall of the rear wheel hub bearing is provided with a first connection portion, a second connection portion, a first hinge portion and a second hinge portion, the first connection portion and the second connection portion being located on the same side of the rear wheel hub bearing, the first hinge portion and the second hinge portion being located on the same side of the rear wheel hub bearing, the first connection portion and the first hinge portion being located on different sides of the rear wheel hub bearing; the top of the connecting block is connected with the first connecting part, and the bottom of the connecting block is connected with the second connecting part; one end of the second connecting rod is hinged with the tail stop lever, and the other end of the second connecting rod is hinged with the first hinge part; one end of the third connecting rod is hinged with the tail baffle rod, and the other end of the third connecting rod is hinged with the second hinge part.
7. The all-terrain vehicle of claim 6, wherein the first connection portion and the second connection portion are located on one side of the rear wheel hub bearing and symmetrically disposed at upper and lower ends of the rear wheel hub bearing, and the first hinge portion and the second hinge portion are located on the other side of the rear wheel hub bearing and symmetrically disposed at upper and lower ends of the rear wheel hub bearing.
CN202210500418.3A 2022-05-10 2022-05-10 All-terrain vehicle Active CN114802462B (en)

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