CN201677947U

CN201677947U - wheeled all terrain vehicle

Info

Publication number: CN201677947U
Application number: CN2010201419700U
Authority: CN
Inventors: 王志; 种洋; 何岳; 王秋童
Original assignee: Chinese Academy of Agricultural Mechanization Sciences
Current assignee: Chinese Academy of Agricultural Mechanization Sciences
Priority date: 2010-03-24
Filing date: 2010-03-24
Publication date: 2010-12-22
Anticipated expiration: 2020-03-24

Abstract

A wheeled all-terrain vehicle, comprising a vehicle frame, a plurality of wheels, and a wheel driving device, the wheel driving device includes an engine and a hydraulic driving device, and the hydraulic driving device includes a plurality of hydraulic drives respectively connected to the wheels A motor, and a hydraulic pump connected to a plurality of hydraulic motors, the hydraulic pump is directly connected to the engine. The utility model uses an engine to drive a hydraulic pump, and the hydraulic pump drives an independent hydraulic motor connected to the wheels to realize the walking, steering and braking of the all-terrain vehicle. Flexible and convenient.

Description

Wheeled atv

Technical field

The utility model relates to a kind of all-terrain vehicle, specifically, relates to a kind of wheeled atv.

Background technology

All-terrain vehicle is the special-use vehicle at extreme terrain development, and where it can be in office travel on the shape, and the maximum characteristics of this kind vehicle are to be difficult to advance on the power operated landform in common vehicle.All-terrain vehicle comes across Sweden, the former Soviet Union etc. the earliest, and a few is positioned at the country in the Northern Hemisphere, as a kind of means of delivery that navigates on complicated region, can adapt to these characteristics that national landform accumulated snow zone is big, lake bog is numerous, not only can cross over ditch, walk in marsh, desert, snowfield, even can paddle.

At present common all-terrain vehicle has two kinds of tracked ATV and wheeled atv, and tracked ATV is because its ground force is distributed on the whole ground with the crawler belt partial engagement, and carrying capacity is very excellent, and applicable surface is wider.Along with development of technology, wheeled atv is owing to possess light, flexibly, fast, comfortable, low noise advantages, also obtained develop rapidly, as authorizing on January 17th, 2007, the patent No. is the Chinese utility model patent of " ZL200520010328.8 ", it adopts engine in front of rear wheel mid-engine, change speed gear box respectively from the left and right sides by the sprocket wheel chain transmission system with transmission of power to the wheel of vehicle body both sides, this kind structure adopts Mechanical Driven and type of drive, though save the drive disk assembly of chassis part, but need to increase sprocket wheel chain mechanical drive, its transmission is convenient inadequately.

The utility model content

Technical problem to be solved in the utility model is the problem at existing wheeled atv transmission inconvenience, and a kind of hydraulically powered wheeled atv is provided.

To achieve these goals, wheeled atv of the present utility model, comprise vehicle frame, a plurality of wheel and wheel driver, described wheel driver comprises driving engine, described wheel driver also comprises fluid pressure drive device, described fluid pressure drive device comprise with described each wheel respectively a plurality of HM Hydraulic Motor of bonded assembly and with a plurality of HM Hydraulic Motor bonded assembly Hydraulic Pumps, described Hydraulic Pump directly links to each other with described driving engine.

Above-mentioned wheeled atv, wherein, described a plurality of wheels are connected with described vehicle frame by each self-corresponding suspension respectively.

Above-mentioned wheeled atv, wherein, described wheel is eight, wherein, with four wheels that are positioned at described vehicle frame front end respectively the described suspension of bonded assembly be the four connecting rod independent suspensions that comprise a spring and a parallelogram lindage.

Above-mentioned wheeled atv, wherein, described wheel is eight, with four wheels that are positioned at described vehicle frame rear end respectively the described suspension of bonded assembly comprise first bar and second bar, described first bar, one end and described wheel bearing pin are hinged, the other end and described vehicle frame are hinged, and described second bar, one end and described first bar are hinged, the other end and described vehicle frame are hinged.

Above-mentioned wheeled atv, wherein, described Hydraulic Pump comprises coaxial series connected two axial plunger variable Hydraulic Pumps mutually.

Above-mentioned wheeled atv, wherein, four wheels that are positioned at described vehicle frame front end also are connected with respectively by turning to of same deflector control uses hydraulic actuating cylinder.

Above-mentioned wheeled atv, wherein, described turn to turn to by one with hydraulic actuating cylinder use the Hydraulic Pump fuel feeding, described turn to Hydraulic Pump coaxial with described axial plunger variable Hydraulic Pump.

Above-mentioned wheeled atv, wherein, the described vehicle frame left and right sides is the plane, and middle ladder is recessed, and the bottom is a full-closed structure.

Above-mentioned wheeled atv, wherein, described vehicle frame rear portion is provided with draw gear.

Above-mentioned wheeled atv, wherein, described HM Hydraulic Motor is double amount HM Hydraulic Motor.

Beneficial functional of the present utility model is, adopt driving engine to drive Hydraulic Pump, hydraulic pump drive independently with wheel bonded assembly HM Hydraulic Motor realize all-terrain vehicle walking, turn to and brake, the all-terrain vehicle of pure relatively Mechanical Driven and transmission, save the complicated mechanical driving system, not only ensuring smooth transmission, and more convenient.

And the employing independent suspension system is suspended on each wheel below the vehicle frame individually, can reduce the impact that vehicle body is subjected to, and improves the traction of wheel, thereby improves the riding stability of all-terrain vehicle.

Also have, Hydraulic Pump adopts series connected two axial plunger variable Hydraulic Pumps mutually, and what can make the driving engine maximum possible is operated in optimum efficiency district, the power utilization and the service life of improving driving engine.

In addition, full-closed structure is adopted in the vehicle frame bottom, can prevent that muddy water from entering vehicle frame inside, to satisfy requirement of travelling waterborne.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is the front view of the utility model wheeled atv;

Fig. 2 is the birds-eye view (removing vehicle frame) of the utility model wheeled atv;

Fig. 3 is the scheme drawing of forward mounting;

Fig. 4 is the hydraulic system structure block diagram of the utility model wheeled atv.

Wherein, Reference numeral

The 1-vehicle frame

The 2-wheel

The 3-actuating device

The 31-driving engine

The 32-fluid pressure drive device

The 321-HM Hydraulic Motor

The 322-Hydraulic Pump

3221-axial plunger variable Hydraulic Pump

The 41-forward mounting

The 411-parallelogram lindage

The last suspension of 4111-

The 4112-lower suspension

The 412-spring

Hang behind the 42-

421-first bar

422-second bar

The 5-steering hardware

51-turns to and uses hydraulic actuating cylinder

52-turns to and uses Hydraulic Pump

The 53-all-hydraulic steering gear

The 6-fuel tank

The 7-electromagnetic valve

The 8-valve

The 9-draw gear

The specific embodiment

Below in conjunction with the drawings and specific embodiments technical solutions of the utility model being described in detail, further understanding the purpose of this utility model, scheme and effect, but is not the restriction as the utility model claims protection domain.

Consult Fig. 1 and Fig. 2, Fig. 1 is the front view of the utility model wheeled atv, and Fig. 2 removes birds-eye view behind the vehicle frame for the utility model wheeled atv.The utility model all-terrain vehicle comprises vehicle frame 1, a plurality of wheel 2 and wheel driver 3, this car adopts the symmetric arrangement mode, and the driver's seat is in the middle of the place ahead of vehicle, and wheel 2 is symmetrically arranged in the vehicle both sides, the vehicle frame rear portion is furnished with draw gear 9, uses during for traction.Principal feature of the present utility model is: wheel driver 3 adopts the brand new type of drive, below just wheel driver 3 is described in detail.

In conjunction with consulting Fig. 4, wheel driver 3 comprises driving engine 31 and fluid pressure drive device 32, this fluid pressure drive device 32 comprises that again distinguishing a plurality of HM Hydraulic Motor 321 of bonded assemblys with each wheel 2 reaches and a plurality of HM Hydraulic Motor 321 bonded assembly Hydraulic Pumps 322, and this Hydraulic Pump 322 directly links to each other with driving engine 31.Hydraulic Pump 322 comprises coaxial series connected two axial plunger variable Hydraulic Pumps 3221 mutually, one of them axial plunger variable Hydraulic Pump 3221 adopts automatic control mode, with driving engine 31 rotating speed automatic guidance capacity of pump, another axial plunger variable Hydraulic Pump 3221 adopts the direct-type fluid control, follow the tracks of the variable change of previous axial plunger variable Hydraulic Pump 3221, like this, what can guarantee the driving engine maximum possible is operated in the optimum efficiency district, improve the power utilization and the service life of driving engine, enlarge the speed adjustable range of vehicle, and prevent engine overload and stop working.And, can control advancing of car load and retreat by the electromagnetic valve 7 on the control axial plunger variable Hydraulic Pump 3221.In addition, each and wheel bonded assembly HM Hydraulic Motor 321 are double amount HM Hydraulic Motor, and by the control to HM Hydraulic Motor 321 discharge capacities, car load can realize that different gears advance; In order to prevent each tyre skidding and best vehicle drive force can be provided, to adapt to different ground-surface requirements, by with the adjusting of each HM Hydraulic Motor 321 bonded assembly valve 8, can guarantee that HM Hydraulic Motor 321 rotates with identical speed under operating modes such as various loads, pressure, flow.

Another characteristics of the utility model all-terrain vehicle are, the employing independent suspension system is suspended on each wheel 2 below the vehicle frame 1 individually, and the suspension on the leading portion wheel is adopted different structures with the suspension on the trailing portion wheel, be embodied in: in this embodiment, wheel is eight, wherein, hang 41 (crying forward mounting herein) for comprising spring 412 with four wheels difference bonded assemblys that are positioned at vehicle frame 1 front end, and four connecting rod independent suspensions (sketch is seen Fig. 3) of the parallelogram lindage of forming by last suspension 4111 and lower suspension 4,112 411, because four connecting rod independent suspensions belong to prior art, give unnecessary details with regard to seldom doing at this; Comprise first bar 421 and second bar 422 with four wheels that are positioned at vehicle frame 1 rear end bonded assembly suspension 42 respectively (making the back hang) herein, the bearing pin of these first bar, 421 1 ends and wheel 2 is hinged, the other end and vehicle frame 2 are hinged, these second bar, 422 1 ends and first bar, 421 hinged, the other ends and also hinged with vehicle frame 2, different is first bar 421, second bar 422 and the different (see figure 1)s in vehicle frame pivotally attached position.

Similarly, taking turns all-terrain vehicle with eight is example, in the present embodiment, four wheels that are positioned at the vehicle frame front end are wheel flutter, these four wheels are turned to by connected steering hardware 5 controls, steering hardware 5 comprises that hydraulic actuating cylinder 51 is (because it is mainly used in the control wheel steering, also cry and turn to) with hydraulic actuating cylinder or hydraulic steering cylinder, Hydraulic Pump 52 is (because it is mainly used in the control wheel steering, also cry and turn to Hydraulic Pump or steering hydraulic pump) and all-hydraulic steering gear 53, each wheel of preceding four wheels connects one and turns to hydraulic actuating cylinder 51, these a plurality of hydraulic steering cylinders 51 are by same deflector 53 controls, each turns to hydraulic actuating cylinder 51 by turning to Hydraulic Pump 52 fuel feeding, this turns to Hydraulic Pump 52 and two axial plunger variable Hydraulic Pumps, 3221 coaxial series connection, like this, all-hydraulic steering gear 53 is according to the bearing circle hand of rotation, rotational angle and speed control flow size and Orientation turn to hydraulic actuating cylinder 51 and realize that as actuating unit promotion wheel car load turns to.Certainly, the preceding four-wheel that herein only provides is the example of wheel flutter, in actual the use, not as limit.

For convenience of the carrying capacity of wheeled atv, the tire of wheel adopts wide section, infrabar ground grip tyre, to increase ground contact area and coefficient of friction, reduction unit pressure.And many wheel modes more can increase ground contact area, and to reduce the load-bearing of each tire, as long as both sides have three tires effectively to be supported, full car will be in state of equilibrium.Further, in order to satisfy the requirement of paddling of wheeled atv, the vehicle frame left and right sides of all-terrain vehicle of the present utility model is the plane, middle ladder is recessed, the bottom is a full-closed structure, enters vehicle frame inside to prevent muddy water, thereby satisfies vehicle requirement of travelling waterborne.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. A wheeled all-terrain vehicle, comprising a vehicle frame, a plurality of wheels, and a wheel drive device, the wheel drive device comprising an engine, characterized in that, the wheel drive device also includes a hydraulic drive device, and the hydraulic drive device The device includes a plurality of hydraulic motors respectively connected with the wheels, and a hydraulic pump connected with the plurality of hydraulic motors, and the hydraulic pump is directly connected with the engine.

2 . The wheeled all-terrain vehicle according to claim 1 , wherein the plurality of wheels are respectively connected to the frame through respective corresponding suspensions.

3. The wheeled all-terrain vehicle according to claim 2, wherein the number of the wheels is eight, wherein the suspensions connected to the four wheels at the front end of the vehicle frame respectively include springs and a The four-link independent suspension of the parallel four-bar mechanism.

4. The wheeled all-terrain vehicle according to claim 2, wherein the number of said wheels is eight, wherein said suspensions respectively connected to the four wheels positioned at the rear end of said vehicle frame comprise a first rod and A second rod, one end of the first rod is hinged to the wheel pin, the other end is hinged to the vehicle frame, one end of the second rod is hinged to the first rod, and the other end is hinged to the vehicle frame.

5. The wheeled all-terrain vehicle according to claim 3 or 4, wherein the hydraulic pump comprises two axial piston variable hydraulic pumps coaxially connected in series.

6 . The wheeled all-terrain vehicle according to claim 5 , wherein the four wheels located at the front end of the vehicle frame are respectively connected with steering hydraulic cylinders controlled by the same steering gear.

7. The wheeled all-terrain vehicle according to claim 6, wherein the steering hydraulic cylinder is supplied with oil by a steering hydraulic pump, and the steering hydraulic pump is the same as the axial piston variable hydraulic pump. axis.

8. The wheeled all-terrain vehicle according to claim 1, 2, 3 or 4, wherein the left and right sides of the vehicle frame are planes, the middle step is concave, and the lower part is a fully enclosed structure.

9. The wheeled all-terrain vehicle according to claim 8, characterized in that a traction device is provided at the rear of the vehicle frame.

10. The wheeled all-terrain vehicle according to claim 1, 2, 3 or 4, wherein the hydraulic motor is a double-displacement hydraulic motor.