CN206530558U - A kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery - Google Patents
A kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery Download PDFInfo
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- CN206530558U CN206530558U CN201720165434.6U CN201720165434U CN206530558U CN 206530558 U CN206530558 U CN 206530558U CN 201720165434 U CN201720165434 U CN 201720165434U CN 206530558 U CN206530558 U CN 206530558U
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Abstract
The utility model provides a kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery, including hydraulic mechanism, drive wheel mechanism and steering actuation, the hydraulic mechanism includes fuel tank, close circuit variable pump, enclosed quantitative plunger motor, freewheel valve group and two low-speed big torque motors being connected by fluid pressure line, close circuit variable pump drives enclosed quantitative plunger motor, and enclosed quantitative plunger motor drives two running wheels by drive wheel mechanism；The close circuit variable pump drives two low-speed big torque motors by freewheel valve group, two low-speed big torque motors drive two deflecting rollers by turning to actuation, realize hydraulic pressure 4 wheel driven, simultaneously, operating personnel can use 4 wheel driven when loading larger, driven when load is smaller using two, switching is simple, save the energy.
Description
Technical field
The utility model is related to agricultural mechanical field, and specifically a kind of walking for hydraulic pressure 4 wheel driven agricultural machinery is driven
Dynamic system.
Background technology
Current wheeled agricultural machinery uses front-wheel drive substantially, the walking manner of rear-axle steering, and present agricultural machinery is to intelligence
Energyization, maximization development, required driving force increase, two type of drive driven can not meet the walking need of maximization agricultural machinery
Ask, the utility model realizes hydraulic pressure 4 wheel driven using hydraulic mechanism, the utility model uses 4 wheel driven when loading larger, loads hour
Driven using two, switching is simple, save the energy.
Utility model content
The technical problems to be solved in the utility model is：A kind of hoofing part system for hydraulic pressure 4 wheel driven agricultural machinery is provided
System, hydraulic pressure 4 wheel driven is realized using hydraulic mechanism, and 4 wheel driven is used when loading larger, and load hour drives using two, and switching is simple, section
Save the energy.
To achieve these goals, the technical solution adopted in the utility model is：One kind is used for hydraulic pressure 4 wheel driven agricultural machinery
Travel driving system, including hydraulic mechanism, drive wheel mechanism and turn to actuation, the hydraulic mechanism includes logical
Cross fuel tank, close circuit variable pump, enclosed quantitative plunger motor, freewheel valve group and two low speed of fluid pressure line mating connection
High pulling torque motor, the fuel tank is connected with close circuit variable pump, and two oil-outs of close circuit variable pump are respectively with closing
Two oil inlets of formula quantitative plunger motor are connected, the output shaft of enclosed quantitative plunger motor by drive wheel mechanism with
Two running wheels are connected；The input of the freewheel valve group is connected with two oil inlets of enclosed quantitative plunger motor
Connect, the output end of freewheel valve group is connected with two inflow pipelines of two low speed high torque motors in parallel, described two
Low speed high torque motor is respectively by rotating actuation connection corresponding with two deflecting rollers；Close circuit variable pump driving is closed
Formula quantitative plunger motor, enclosed quantitative plunger motor drives two running wheels by drive wheel mechanism；The enclosed
Variable plunger pump drives two low-speed big torque motors by freewheel valve group, and two low-speed big torque motors are by turning to wheel driving
Motivation structure drives two deflecting rollers, realizes hydraulic pressure 4 wheel driven；
It is preferred that, one is additionally provided with the close circuit variable pump and independent provides pressure energy to freewheel valve group
Controlling pump, the oil inlet of controlling pump is connected with fuel tank, and the oil-out of controlling pump is connected with freewheel valve group；
It is preferred that, the freewheel valve group includes two four-way electromagnetic reversing valves and 3 position-5 way hydraulic directional valve, two
The positive oil inlet of four-way electromagnetic reversing valve is connected with the oil-out of controlling pump, two four-way electromagnetic reversing valves it is positive fuel-displaced
Mouthful it is connected with the control port of 3 position-5 way hydraulic directional valve, the reverse oil inlet of two four-way electromagnetic reversing valves and three five
The oil return opening of logical hydraulic directional valve is connected with drain tap, and the reverse oil-out of two four-way electromagnetic reversing valves is connected with fuel tank
Connect；Two oil inlets of the 3 position-5 way hydraulic directional valve are connected respectively with two oil inlets of enclosed quantitative plunger motor,
The two inflow pipeline phases of two oil-outs of 3 position-5 way hydraulic directional valve respectively with two low speed high torque motors in parallel
Connection, is connected after the oil-out of two low speed high torque motors is in parallel with fuel tank, and two four-way electromagnetic reversing valves pass through control
The pressure energy that pump is provided controls the work of 3 position-5 way hydraulic directional valve.
What the utility model was brought has the beneficial effect that：The utility model realizes hydraulic pressure 4 wheel driven using hydraulic mechanism, in load
4 wheel driven is used when larger, load hour drives using two, saves the energy；The utility model uses low-speed big torque motor, installation side
Just, low-speed big torque motor is arranged on back axle, directly drives deflecting roller.
Brief description of the drawings
Fig. 1 is overall flow schematic diagram of the present utility model；
Fig. 2 is the structural representation of hydraulic mechanism in the utility model；
Marked in figure：1st, close circuit variable pump, 2, controlling pump, 3, low-speed big torque motor, 4, enclosed quantitative plunger horse
Reach, 5, two four-way electromagnetic reversing valves, 6, freewheel valve group, 7,3 position-5 way hydraulic directional valve, 8, fuel tank.
Embodiment
The principle and feature to utility model are described in detail with reference to embodiments, and illustrated embodiment is only used for description
Utility model, is not intended to limit scope of the present utility model.
As shown in figure 1, a kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery, including hydraulic mechanism, driving wheel
Drive mechanism and steering actuation, the drive wheel mechanism and steering actuation are that this area is more ripe
Technology, does not elaborate herein, and drive wheel mechanism mainly includes gearbox and hub reduction gear, the hydraulic mechanism bag
Include the fuel tank 8 being connected by fluid pressure line, close circuit variable pump 1, enclosed quantitative plunger motor 4, the and of freewheel valve group 6
Two low-speed big torque motors 3, the fuel tank 8 is connected with close circuit variable pump 1, and two of close circuit variable pump are fuel-displaced
Mouth is connected with two oil inlets of enclosed quantitative plunger motor 3 respectively, and the output shaft of enclosed quantitative plunger motor passes through driving
Actuation is connected with two running wheels；The input of the freewheel valve group 6 and enclosed quantitative plunger motor
Two oil inlets are connected, two inflow pipeline phases of the output end of freewheel valve group and two low speed high torque motors in parallel
Connection, described two low speed high torque motors 3 are respectively by rotating actuation connection corresponding with two deflecting rollers；Enclosed becomes
Plunger pump driving enclosed quantitative plunger motor is measured, enclosed quantitative plunger motor drives two walkings to drive by drive wheel mechanism
Driving wheel；The close circuit variable pump drives two low-speed big torque motors, two low-speed big horses by freewheel valve group
Two deflecting rollers are driven up to by turning to actuation, low-speed big torque motor is arranged on back axle, directly drives deflecting roller, real
Existing hydraulic pressure 4 wheel driven；
An independent controlling pump that pressure energy is provided to freewheel valve group is additionally provided with the close circuit variable pump 1
2, controlling pump 2 and close circuit variable pump 1 are separate, wherein the driving of close circuit variable pump 1 enclosed quantitative plunger motor, control
Pump 2 processed provides pressure energy to freewheel valve group；Close circuit variable pump 1 is connected with the oil inlet of controlling pump with fuel tank, control
The oil-out of pump is connected with freewheel valve group；
The freewheel valve group 6 includes two four-way electromagnetic reversing valves 5 and 3 position-5 way hydraulic directional valve 7, two four-ways
The positive oil inlet of solenoid directional control valve 5 is connected with the oil-out of controlling pump 2, the positive oil-out of two four-way electromagnetic reversing valves
Control port with 3 position-5 way hydraulic directional valve 7 is connected, the reverse oil inlet of two four-way electromagnetic reversing valves and three five
The oil return opening of logical hydraulic directional valve is connected with drain tap, and the reverse oil-out of two four-way electromagnetic reversing valves is connected with fuel tank 8
Connect；Two oil inlets of the 3 position-5 way hydraulic directional valve are connected respectively with two oil inlets of enclosed quantitative plunger motor,
Two inflow pipelines of two oil-outs of 3 position-5 way hydraulic directional valve 7 respectively with two low speed high torque motors 3 in parallel
It is connected, is connected after the oil-out of two low speed high torque motors is in parallel with fuel tank, two four-way electromagnetic reversing valves passes through control
The pressure energy that pump processed is provided controls the work of 3 position-5 way hydraulic directional valve；In the present embodiment, two four-way electromagnetics commutation
The positive oil inlet of valve is the pressure oil port P of reversal valve, and positive oil-out is the actuator port A of reversal valve, and reverse oil inlet is
The actuator port B of reversal valve, reverse oil-out is the oil return inlet T of reversal valve, when two four-way electromagnetic reversing valves are powered, two four
Passage between the positive oil inlet of electric change valve and positive oil-out, reverse oil inlet and reverse oil-out connects respectively
Logical, the oil in fuel tank enters the positive oil inlet of two four-way electromagnetic reversing valves after being pressurizeed through controlling pump, then from two four-ways
The positive oil-out of solenoid directional control valve is flowed into the control port of 3 position-5 way hydraulic directional valve, drives 3 position-5 way to surge commutation
The valve element movement of valve, and then the passage between two oil inlets of 3 position-5 way hydraulic directional valve and two oil-outs is connected respectively
Logical, the oil circuit of 3 position-5 way hydraulic directional valve, close circuit variable pump and low-speed big torque motor is connected, low-speed big torque motor
Two deflecting roller operatings are driven to realize 4 wheel driven by turning to actuation；Meanwhile, from two low speed high torque motor oil-outs
The oil of outflow directly flows back to fuel tank, and the oil flowed out from 3 position-5 way hydraulic directional valve oil return opening and drain tap is powered by two four
The reverse oil inlet and reverse oil-out of magnetic reversal valve flow back into fuel tank；During two four-way electromagnetic reversing valve dead electricity, two four-ways
The positive oil circuit of solenoid directional control valve disconnects, and 3 position-5 way hydraulic directional valve returns to initial position losing pressure energy back valve core, enters
And the passage between two oil inlets of 3 position-5 way hydraulic directional valve and two oil-outs is each turned off, low-speed big horse
Do not worked up to being dallied after driving pressure is lost, realize two drives.
A kind of course of work of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery of the utility model：In fuel tank 8
Oil is divided into two-way after being pressurizeed through close circuit variable pump 1, and the two oil inlets driving for respectively enteing enclosed quantitative plunger motor 4 is closed
The operating of formula quantitative plunger motor, enclosed quantitative plunger motor 4 drives two running wheels to transport by drive wheel mechanism
Turn；When two four-way electromagnetic reversing valves 5 are powered, the positive oil inlet of two four-way electromagnetic reversing valves with positive oil-out, reversely
Passage between oil inlet and reverse oil-out is respectively turned on, and the oil in fuel tank 8 enters two four energizations after being pressurizeed through controlling pump 2
The positive oil inlet of magnetic reversal valve, is then flowed into 3 position-5 way from the positive oil-out of two four-way electromagnetic reversing valves 5 and surges
The control port of reversal valve 7, drives the valve element movement of 3 position-5 way hydraulic directional valve 7, makes the two of 3 position-5 way hydraulic directional valve
Individual oil inlet is respectively communicated with two oil-outs, and then makes 3 position-5 way hydraulic directional valve 7, close circuit variable pump 1 and low speed
The oil circuit of high pulling torque motor 3 is connected, and drives two deflecting rollers to operate by turning to actuation after the big motor operations of low speed；Together
When, fuel tank 8 is directly flowed back to from the oil of two low speed high torque motor oil-out outflows, from the oil return of 3 position-5 way hydraulic directional valve 7
The oil that mouth and drain tap flow out flow back into fuel tank by the reverse oil inlet and reverse oil-out of two four-way electromagnetic reversing valves 5；
During two four-way electromagnetic reversing valve dead electricity, the positive oil circuit of two four-way electromagnetic reversing valves disconnects, 3 position-5 way hydraulic directional valve 7
Return to initial position losing pressure energy back valve core, so make 3 position-5 way hydraulic directional valve two oil inlets and two it is fuel-displaced
Passage between mouthful is each turned off, and low-speed big torque motor dallies after driving pressure is lost not to work, and realizes two drives；Operator
Two four-way electromagnetic reversing valves can be powered by member when using the utility model when loading larger, realize 4 wheel driven, load compared with
Hour powers off two four-way electromagnetic reversing valves, realizes two drives, and control is simple, saves the energy.
Claims (3)
1. a kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery, including hydraulic mechanism, drive wheel mechanism and turn
To actuation, it is characterised in that：The hydraulic mechanism includes the fuel tank being connected by fluid pressure line（8）, enclosed become
Measure plunger pump（1）, enclosed quantitative plunger motor（4）, freewheel valve group（6）With two low-speed big torque motors（3）, the fuel tank
（8）With close circuit variable pump（1）Be connected, two oil-outs of close circuit variable pump respectively with enclosed quantitative plunger motor
（3）Two oil inlets be connected, the output shaft of enclosed quantitative plunger motor passes through drive wheel mechanism and driven with two walkings
Driving wheel is connected；The freewheel valve group（6）Input be connected with two oil inlets of enclosed quantitative plunger motor, freely
The output end for taking turns valve group is connected with two inflow pipelines of two low speed high torque motors in parallel, and described two low speed turn greatly
Square motor（3）Respectively by rotating actuation connection corresponding with two deflecting rollers；Close circuit variable pump driving enclosed is determined
Piston motor is measured, enclosed quantitative plunger motor drives two running wheels by drive wheel mechanism；Enclosed variable piston
Pump drives two low-speed big torque motors by freewheel valve group, and two low-speed big torque motors are driven by turning to actuation
Two deflecting rollers are moved, hydraulic pressure 4 wheel driven is realized.
2. a kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery as claimed in claim 1, it is characterised in that：It is described
Close circuit variable pump（1）In be additionally provided with an independent controlling pump that pressure energy is provided to freewheel valve group（2）, controlling pump
Oil inlet and fuel tank（8）It is connected, the oil-out of controlling pump is connected with freewheel valve group.
3. a kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery as claimed in claim 2, it is characterised in that：It is described
Freewheel valve group（6）Including two four-way electromagnetic reversing valves（5）With 3 position-5 way hydraulic directional valve（7）, two four-way electromagnetics change
To valve（5）Positive oil inlet and controlling pump（2）Oil-out be connected, the positive oil-out of two four-way electromagnetic reversing valves with
3 position-5 way hydraulic directional valve（7）Control port be connected, the reverse oil inlet of two four-way electromagnetic reversing valves and three five
The oil return opening of logical hydraulic directional valve is connected with drain tap, the reverse oil-out and fuel tank of two four-way electromagnetic reversing valves（8）Phase
Connection；Two oil inlets of the 3 position-5 way hydraulic directional valve connect respectively with two oil inlets of enclosed quantitative plunger motor
Connect, 3 position-5 way hydraulic directional valve（7）Two oil-outs respectively with two low speed high torque motors in parallel（3）Two enter
Oil-piping is connected, and is connected after the oil-out of two low speed high torque motors is in parallel with fuel tank, two four-way electromagnetic reversing valves
The pressure energy provided by controlling pump controls the work of 3 position-5 way hydraulic directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720165434.6U CN206530558U (en) | 2017-02-23 | 2017-02-23 | A kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720165434.6U CN206530558U (en) | 2017-02-23 | 2017-02-23 | A kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530558U true CN206530558U (en) | 2017-09-29 |
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ID=59916182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720165434.6U Active CN206530558U (en) | 2017-02-23 | 2017-02-23 | A kind of travel driving system for hydraulic pressure 4 wheel driven agricultural machinery |
Country Status (1)
| Country | Link |
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| CN (1) | CN206530558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678097A (en) * | 2017-02-23 | 2017-05-17 | 洛阳理工学院 | Walking driving system used for hydraulic four-wheel drive agricultural machine |
| CN115384306A (en) * | 2022-10-27 | 2022-11-25 | 潍柴雷沃智慧农业科技股份有限公司 | Hydrostatic four-wheel drive control system and agricultural machine |
-
2017
- 2017-02-23 CN CN201720165434.6U patent/CN206530558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678097A (en) * | 2017-02-23 | 2017-05-17 | 洛阳理工学院 | Walking driving system used for hydraulic four-wheel drive agricultural machine |
| CN115384306A (en) * | 2022-10-27 | 2022-11-25 | 潍柴雷沃智慧农业科技股份有限公司 | Hydrostatic four-wheel drive control system and agricultural machine |
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