CN106828088A - Wheeled hydrostatic drive intelligence grain harvesting machine universal chassis - Google Patents
Wheeled hydrostatic drive intelligence grain harvesting machine universal chassis Download PDFInfo
- Publication number
- CN106828088A CN106828088A CN201710022095.0A CN201710022095A CN106828088A CN 106828088 A CN106828088 A CN 106828088A CN 201710022095 A CN201710022095 A CN 201710022095A CN 106828088 A CN106828088 A CN 106828088A
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- Prior art keywords
- hydraulic
- steering
- wheel
- valve
- drive
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D67/00—Undercarriages or frames specially adapted for harvesters or mowers; Mechanisms for adjusting the frame; Platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
- B60K2025/065—Auxiliary drives from the transmission power take-off the transmission being fluidic, e.g. hydraulic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Guiding Agricultural Machines (AREA)
Abstract
The present invention relates to agricultural machinery technological field, a kind of universal chassis of the wheeled hydrostatic drive intelligence grain harvesting machine that can quickly form different grain harvest demands, including frame, afterwards front driving wheel, driving deflecting roller, front/rear frame, adjustable trestle, power plant module, forerunner's hydrodynamic pressure closed system, rear drive form hydraulic system, equipment power plant module are provided（Hydraulic multitandem valve）, electric hydraulic steering system, driver's cabin, integrated control panel, CAN monitoring panel.The open type that running gear is driven by front-wheel closed type hydraulic system and trailing wheel electro-hydraulic proportion reversing valve is controlled is driven, and forerunner or 4 wheel driven can be switched by controller；Steering use electro-hydraulic steering gear, can manually, shake control, auto-steering and bus marco；Electro-hydraulic multichannel valve module can meet different type cropper equipment requirement；Bus monitoring controller panel and integrated control panel in driver's cabin can complete the monitoring and control to each equipment of each system.
Description
Technical field
The present invention provides a kind of intelligent cropper of wheeled full hydraulic drive that can quickly form different grain harvest demands
Universal chassis, belong to agricultural machinery technological field.
Background technology
With the extensive popularization of mechanization of agriculture, traditional grain harvesting machine chassis is in terms of key property and versatility
Actual demand can not be met, and a kind of a kind of simple production mode of cropper chassis with equipment is considerably increased
The manufacturing cost of enterprise and the purchase burden of peasant.In addition, self propelled harvester chassis design at present be still present compared with
Many problems, such as radius of turn are big, the road clearance is small, before and after wheel speed match improper, chassis on part arrangement it is not reasonable,
Fault rate is high, high, intelligence degree is low to manipulate intensity, and these all govern the raising of grain harvesting machine product quality.
The content of the invention
It is an object of the invention to provide a kind of hydrostatic drive self-walking intelligent grain harvesting machine universal chassis, to solve
Above-mentioned technical problem.
Technical problem solved by the invention can be realized using following technical scheme：
The universal chassis complete machine structure uses modularized design, including power plant module, walking module, steering module, operational module,
Intellectual monitoring module, operating mechanism's power plant module, adjustable trestle module, have by the quick lap joint of universal chassis, completion
The cropper product of specific function so that the free degree of global design becomes big, and the production cycle shortens.
The power plant module presets the engine of certain watt level, and its suspending mechanism is removed and meets the model engine
Place, size can adjust, and adapt to the selection of different model engine, enhance the flexibility on chassis.The power plant module and liquid
The connection of press pump group unit provides walking, steering, the power resources of equipment of whole machine.
The adjustable trestle module is by the quick-changing mechanism on universal chassis upper spider, size adjustment mechanism energy
Meet Fast Installation of the different operating device on chassis.
The walking module uses the hydrostatic combination machine driving of enclosed, reliable operation to be capable of achieving stepless speed regulation.Front-wheel,
Four-wheel drive is optional, free switching, can meet the different driving cycles of cropper.The route engine power of universal chassis one is transmitted to
Hydraulic pump-hydraulic motor system in enclosed walking system, fluid motor-driven speed change differential case will by propons left and right half
Power is transmitted to left and right sides hub reduction gear, and then drives the walking of left and right front driving wheel；Another route engine power in chassis is passed
Rear driving axle is reached again to hydraulic pump-proportional multi-way valve-hydraulic motor open system completes rear wheel drive.By front-wheel drive enclosed
Variable pump governing system and proportioning valve governing system are integrated into a controller in system（Speed setting controller）In, by the control
Four-wheel drive or cut-out rear wheel drive only front-wheel drive are coordinated in device control.The controller can complete the matching of front and rear axle speed and post
The elimination of raw power.
Operating mechanism's power plant module is provided by the electro-hydraulic banked direction control valves being arranged in frame, and the banked direction control valves power is by pump group
There is provided, if banked direction control valves is made up of main line electro-hydraulic proportion reversing valve and common electro-hydraulic reversing valve, proportioning valve is provided to need accurately（Nothing
Level speed governing, with load variations）Rotating speed of the equipment of control such as snapping bar etc., general solenoid valve is then supplied to and only need switch to control
Lifting of the equipment of the system such as ceding of Taiwan etc..
The universal chassis of invention for traditional pure hydraulic steering system exist steering sensitivity it is unadjustable, without road feel,
The low problem of positioning precision is turned to, the electric hydraulic steering system of flux amplification valve composition is controlled using electrohydraulic proportional directional valve and is had
The adjustable electronic steering wheel subsystem of Force Feedback Characteristics, steering sensitivity controls to turn to, and electric hydraulic steering system can also realize base
In remote control or the automatic steering control of GPS positioning technology.Steering is by electrohydraulic dynamic valve, electric drive performs device, steering wheel
Sensor and position sensor are constituted.This steering turning rate is convertible, and steering wheel drift action can be eliminated, and can with it is automatic
Steering is communicated, using unmanned steering.The steering conveniently can be articulated in CAN, realize bus marco.
The monitoring system module is arranged in the driver's cabin of universal chassis, and system includes hardware circuit and drive software.
Hardware circuit is included：The interface circuits such as system communications bus, processor and each functional chip, liquid crystal display, button, alarm, with
And the system board and its design of installation.Drive software includes：Communication bus is driven, system operating program kernel volume is transplanted and liquid
The driver of crystalline substance screen, button and alarm etc..Engine unit, running gear unit on chassis, electric hydraulic steering system, work
Device is all transmitted to CAN bus system by its controller in message form.The function that monitoring system can be completed includes：Can correctly show
Show equipment such as（Ceding of Taiwan inclination angle, snapping bar rotating speed etc.）With the size of machinery operation speed, generator operating conditions are given and drive
The regulation scheme of parameter is sailed, instructs machine hand to drive, fault alarm function.
The operating mechanism of universal chassis includes direction controlling, travelling control, work structuring control, all integrated peace of monitoring system
In driver's cabin, be easy to operate, safeguard, labour intensity it is small.
The present invention compared with prior art, has the following advantages that：
（1）The use of modular chassis complete machine structure can quick lap joint, cropper product of the completion with specific function so that whole
The free degree of body design becomes big, can be supporting with multiple kinds of crops harvesting apparatus, improves operating efficiency, reduces and is produced into
This.
（2）Running gear is combined hydrostatic transmissions using enclosed, open type, is capable of achieving stepless speed regulation.Front-wheel drive, four-wheel
Optional, free switching is driven, the different driving cycles of cropper can be met.
（3）Content ratio direction valve group, the banked direction control valves of electromagnetic switch valve group are configured with universal chassis, often all the way can be independent
Rotating speed, the loaded self-adaptive of the road work system, each valve is controlled to be independent of each other between joining, to adapt to the dynamic of variety classes equipment
Power and speed governing requirement.
（4）Running gear, steering, equipment system and monitoring system are using CAN bus system control so that control
The configuration of device sensor processed and the range of choice of species are big, it is possible to achieve various control.
（5）Intellectual monitoring and long distance control system can monitor in real time work system and running gear states, easily realization control
Sensitivity processed and the regulation of control range, and can quickly carry out diagnosis and elimination of breakdown.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Wherein in figure：Deflecting roller is driven after 1-；2- hydraulic oil containers and cooling device；3- power module supports；4- hydraulic power lists
Unit（Pump group）；5- engine units；6- driver's cabins；7- integrated control panels；8- low speed control cranks high；9- hydraulic multitandem valves；
10- bus monitoring controller panels；The electro-hydraulic integrated steering gears of 11-；12- driver's cabin elastic supports；13- front driving wheels；
Fig. 2 is plan structure of the invention（Removal engine, driver's cabin）Schematic diagram；
Wherein in figure：14- front axles；15- hydraulic motors；16- adjustable trestles；17- hydraulic motors；18- differential gearboxes；
19- steering cylinders；20- back axles；21- frames；22- two stage speed change differential mechanisms；23- hub reduction gears.
Fig. 3 is power transmission route schematic diagram of the present invention；
Fig. 4 is running gear control schematic diagram of the present invention；
Fig. 5 is steering control schematic diagram of the present invention；
Fig. 6 is bus marco schematic diagram of the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating and the present invention is expanded on further.
Reference picture 1, Fig. 2, general structure of the present invention is：Tandem axle 14,20, front truck are installed in type rack 21
The two ends of bridge 14 are equipped with front driving wheel 13, and centre is connected with two stage speed change differential mechanism（Low speed high）22, left and right wheels can be imparted power to
Side reducer 23, and then drive front driving wheel 13, the power of speed changer to be driven by hydraulic motor 15；It is equipped with the middle of in rear axle 20
The differential gearbox 18 driven by hydraulic motor 17 drives deflecting roller 1 after can imparting power to, while being provided with back axle 20
Steering cylinder 19 can turn to left and right turn driving wheel 1；Adjustable trestle 16 is installed in frame 21（It is multiple）, can fixedly mount
Engine unit 5 and hydraulic power unit（Pump group）4 and follow-up equipment, hydraulic multitandem valve 9, banked direction control valves are housed on support
Unit is integrated with two kinds of Normal hydraulic magnetic valve and proportional hydraulic valve, and being available for different operating device to drive carries out switching control and ratio
Example control；Elastic support 12 is housed in frame 21, driver's cabin 6 is installed thereon, driver's cabin 6 is opened built with seat, braking, electrical equipment
Outside the common equipments such as pass, bus monitoring controller panel 10, integrated control panel 7 are provided with, while being provided with steering dress in driver's cabin
Put and be connected with electro-hydraulic steering gear under 11, transfer, high and low speed speed control crank 8 is additionally provided with driver's cabin.
Total output transfer route of the present invention is as shown in Figure 3.Engine is pump group unit（Two Variable plunger pumps and a tooth
Wheel pump）Power is provided, a route Variable plunger pump and fixed displacement motor composition closed system arrive speed changer and finally drive left and right car again
Wheel；One route Variable plunger pump controls steering cylinder respectively to electro-hydraulic steering gear and multi-channel proportional valve fuel feeding by electro-hydraulic steering gear
So that rear steering driving wheel left and right turn, drive motor back axle after the supply all the way in proportional multi-way valve, remaining is optional
Select and use the equipment for needing precise control；3rd tunnel driving gear pump of pump group unit provide common multipath electrovalve so as to
The equipment that control only need to be controlled simply.
Fig. 4 is the control program block diagram of running gear of the present invention, and traveling controller is by controlling front-wheel drive closed system
Walking variable pump control front wheel rotation speed, controlled by controlling in rear wheel drive open system in proportional reversing valve aperture size
The rotating speed of wheel and the actual vehicle speed for collecting are fed back to control by rear wheel rotation speed processed, front and rear wheel speed by speed probe respectively
Device processed is compared calculating, so that front and back wheel speed coordination is consistent, traveling controller can simultaneously receive handle low speed input high,
The switching of front-wheel or four-wheel drive can be carried out by the off-load of electromagnetic proportional valve, switching button is located at integrated chain of command in driver's cabin
On plate 7.
Fig. 5 is the control program block diagram of transfer, and steering of the present invention uses electro-hydraulic steering gear, in electro-hydraulic steering gear
Equipped with electrohydraulic dynamic valve, and with electric drive performs device, than convertible, steering wheel drift action can be eliminated wheel steering, be adopted
Auto-steering is realized with remote control or with GPS location communication.This steering can be articulated in CAN by message, realized total
Line traffic control.
Fig. 6 is CAN control block of the present invention, and bus control unit can be by engine controller, running gear control
Device processed, transfer controller, equipment controller are gathered by bus network in message form and transmitted, so as in driver's cabin
Each system operational parameters of whole machine, data, running status etc. are shown on internal bus control panel.
General principle of the invention, principal character and advantage has been shown and described above.The technical staff of the industry should
Understand, merely illustrating the principles of the invention described in specification, without departing from the spirit and scope of the present invention, this hair
Bright also to have various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.Application claims
Protection domain is by appending claims and its equivalent thereof.
Claims (6)
1. wheeled hydrostatic drive intelligence grain harvesting machine universal chassis, including frame, front driving wheel, deflecting roller, preceding is driven afterwards
Rear frame, adjustable trestle, power plant module, forerunner's hydrodynamic pressure closed system, rear drive form hydraulic system, equipment power
Module（Hydraulic multitandem valve）, electric hydraulic steering system, driver's cabin, integrated control panel, CAN monitoring panel, its structure type
For：Tandem axle 14,20 is installed in type rack 21, the two ends of front axle 14 are equipped with front driving wheel 13, and centre is connected with two
Level Transaxle（Low speed high）22, left and right hub reduction gear 23 can be imparted power to, and then drive front driving wheel 13, speed change
The power of device is driven by hydraulic motor 15；Can be by equipped with the differential gearbox 18 driven by hydraulic motor 17 in the middle of in rear axle 20
Power drives deflecting roller 1 after passing to, and can turn to left and right turn driving wheel 1 while being provided with steering cylinder 19 on back axle 20；
Adjustable trestle 16 is installed in frame 21（It is multiple）, engine unit 5 and hydraulic power unit can be fixedly mounted（Pump group）4 and
Follow-up equipment, is equipped with hydraulic multitandem valve 9 on support, multichannel valve cell is integrated with Normal hydraulic magnetic valve and proportional hydraulic
Two kinds of valve, being available for different operating device to drive carries out switch control and ratio control；Elastic support 12 is housed, thereon in frame 21
Driver's cabin 6 is installed, driver's cabin 6 built with common equipments such as seat, braking, electric switches outside, be provided with bus monitoring controller
Panel 10, integrated control panel 7, while being connected with electro-hydraulic steering gear under transfer 11, transfer are provided with driver's cabin, is driven
Sail interior and be additionally provided with high and low speed speed control crank 8.
2. wheeled hydrostatic drive intelligence grain harvesting machine universal chassis according to claim 1, it is characterised in that：Start
Machine is pump group unit（Two Variable plunger pumps and a gear pump）Power, route Variable plunger pump and a fixed displacement motor group are provided
Arrive speed changer again into closed system and finally drive left and right wheelses；One route Variable plunger pump is respectively to electro-hydraulic steering gear and multichannel ratio
Example valve fuel feeding, steering cylinder is controlled so that rear steering driving wheel left and right turn, in proportional multi-way valve one by electro-hydraulic steering gear
Drive motor back axle after the supply of road, remaining optional use needs the equipment of precise control；The 3rd of pump group unit
Road driving gear pump provides common multipath electrovalve so as to the equipment for controlling only need to simply control.
3. the intelligent grain harvesting machine universal chassis of wheeled hydrostatic drive according to claim 1,2, it is characterised in that：OK
Walk controller and control front wheel rotation speed by controlling the walking variable pump of front-wheel drive closed system, opened by controlling rear wheel drive
Aperture size controls rear wheel rotation speed in proportional reversing valve in formula system, and front and rear wheel speed is respectively by speed probe by wheel
Rotating speed and the actual vehicle speed that collects feed back to controller and compare calculatings so that front and back wheel speed coordination is unanimously, OK
Walking controller can carry out cutting for front-wheel or four-wheel drive while receive the input of handle low speed high by the off-load of electromagnetic proportional valve
Change, switching button is located in driver's cabin on integrated control panel 7.
4. wheeled hydrostatic drive self-walking intelligent grain harvesting machine universal chassis according to claim 1,2 or 3, it is special
Levy and be：Steering uses electro-hydraulic steering gear, is furnished with electrohydraulic dynamic valve in electro-hydraulic steering gear, and with electric drive performs device,
Than convertible, steering wheel drift action can be eliminated wheel steering, using shaking control or with GPS location communication realize auto-steering,
This steering can be articulated in CAN by message, realize bus marco.
5. the intelligent grain harvesting machine universal chassis of wheeled hydrostatic drive according to claim 1,2,3 or 4, its feature exists
In：Bus monitoring controller panel 10, integrated control panel 7 are integrally mounted in driver's cabin 6, and bus control unit will can be sent out
Motivation controller, running gear controller, transfer controller, equipment controller pass through bus network in message form
Collection transmission, display, manipulation.
6. wheeled hydrostatic drive self-walking intelligent grain harvesting machine universal chassis according to claim 1, its feature exists
In：Adjustable trestle 16 in frame 21 is adjusted by the quick-changing mechanism on universal chassis upper spider, size
Mechanism can meet different operating device being rapidly assembled and disassembled on chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022095.0A CN106828088B (en) | 2017-01-12 | 2017-01-12 | Wheeled hydrostatic drive intelligence grain harvesting machine universal chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022095.0A CN106828088B (en) | 2017-01-12 | 2017-01-12 | Wheeled hydrostatic drive intelligence grain harvesting machine universal chassis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106828088A true CN106828088A (en) | 2017-06-13 |
| CN106828088B CN106828088B (en) | 2019-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710022095.0A Active CN106828088B (en) | 2017-01-12 | 2017-01-12 | Wheeled hydrostatic drive intelligence grain harvesting machine universal chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106828088B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515177A (en) * | 2018-11-23 | 2019-03-26 | 烟台杰瑞石油装备技术有限公司 | A kind of hydraulic system of orchard picking equipment |
| CN113401222A (en) * | 2021-08-05 | 2021-09-17 | 沈阳德恒装备股份有限公司 | Four-wheel steering chassis for electric road sweeper |
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| US4566553A (en) * | 1983-10-17 | 1986-01-28 | Mccutcheon Arnold E | Agricultural work vehicle |
| CN2553602Y (en) * | 2002-04-29 | 2003-06-04 | 刘永定 | Electric multifunction turn-over, transporting machine |
| CN2606219Y (en) * | 2003-03-13 | 2004-03-10 | 桑恭 | Hydrostatic transmission of nonpolarized speed variable tractor |
| JP4195322B2 (en) * | 2003-03-24 | 2008-12-10 | 株式会社ショーシン | Agricultural vehicle |
| CN102239769A (en) * | 2011-04-22 | 2011-11-16 | 尹健 | Modular mini-type combined harvester |
| CN202180752U (en) * | 2011-07-22 | 2012-04-04 | 杨明光 | Full-hydraulic four-wheel drive high-installed multifunctional paddy field motor vehicle |
| CN104179749A (en) * | 2014-08-19 | 2014-12-03 | 合肥长源液压股份有限公司 | Hydraulic multi-channel valve for agricultural machine |
| CN104686083A (en) * | 2014-10-27 | 2015-06-10 | 青岛科瑞特激光设备有限公司 | Two-gear four-wheel hydraulic stepless variable drive axle assembly for harvester |
-
2017
- 2017-01-12 CN CN201710022095.0A patent/CN106828088B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566553A (en) * | 1983-10-17 | 1986-01-28 | Mccutcheon Arnold E | Agricultural work vehicle |
| CN2553602Y (en) * | 2002-04-29 | 2003-06-04 | 刘永定 | Electric multifunction turn-over, transporting machine |
| CN2606219Y (en) * | 2003-03-13 | 2004-03-10 | 桑恭 | Hydrostatic transmission of nonpolarized speed variable tractor |
| JP4195322B2 (en) * | 2003-03-24 | 2008-12-10 | 株式会社ショーシン | Agricultural vehicle |
| CN102239769A (en) * | 2011-04-22 | 2011-11-16 | 尹健 | Modular mini-type combined harvester |
| CN202180752U (en) * | 2011-07-22 | 2012-04-04 | 杨明光 | Full-hydraulic four-wheel drive high-installed multifunctional paddy field motor vehicle |
| CN104179749A (en) * | 2014-08-19 | 2014-12-03 | 合肥长源液压股份有限公司 | Hydraulic multi-channel valve for agricultural machine |
| CN104686083A (en) * | 2014-10-27 | 2015-06-10 | 青岛科瑞特激光设备有限公司 | Two-gear four-wheel hydraulic stepless variable drive axle assembly for harvester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515177A (en) * | 2018-11-23 | 2019-03-26 | 烟台杰瑞石油装备技术有限公司 | A kind of hydraulic system of orchard picking equipment |
| CN113401222A (en) * | 2021-08-05 | 2021-09-17 | 沈阳德恒装备股份有限公司 | Four-wheel steering chassis for electric road sweeper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106828088B (en) | 2019-07-30 |
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