CN105508323B - Self propelled harvester hydraulic pressure four-wheel drive shoe - Google Patents
Self propelled harvester hydraulic pressure four-wheel drive shoe Download PDFInfo
- Publication number
- CN105508323B CN105508323B CN201610104466.5A CN201610104466A CN105508323B CN 105508323 B CN105508323 B CN 105508323B CN 201610104466 A CN201610104466 A CN 201610104466A CN 105508323 B CN105508323 B CN 105508323B
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- China
- Prior art keywords
- hydraulic
- valve
- self propelled
- propelled harvester
- pilot valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/03—Driving mechanisms or parts thereof for harvesters or mowers fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of self propelled harvester hydraulic pressure four-wheel drive shoe, including hydraulic manifold block, hydraulic flange, pipe joint, magnetic valve, pilot valve, controller, pump and speed probe, hydraulic flange and pipe joint are set outside hydraulic manifold block, the front wheels and rear wheels of self propelled harvester are respectively provided with speed probe, the magnetic valve is arranged on hydraulic oil input channel, the hydraulic fluid port that pumps out on the pipeline between pilot valve and motor through setting damping hole, the magnetic valve, speed probe is connected with controller, the controller realizes the commutation of pilot valve by the opening and closing of magnetic valve.The invention has the advantages that the present invention by damping hole establishes system pressure, rear wheel motor is produced driving force, drive vehicle operation, avoid front-wheel skid after system can not normal work situation.
Description
Technical field
The present invention relates to self propelled harvester Qu Donglingyu, especially a kind of self propelled harvester hydraulic pressure four-wheel drive is anti-skidding
Device.
Background technology
At present, import and high-end self propelled harvester use hydraulic pressure four-wheel drive structure, and hydraulic pressure four-wheel drive structure lacks
It is trapped in and often occurs the phenomenon that some tyre slip vehicle can not walk in the ground condition of miriness in self propelled harvester, from
Above mentioned problem also occurs in the domestic self propelled harvester tool industry of external import.
Because motor hydraulic circuit is shunt circuit before and after 4 wheel driven, when front-wheel skids, it is relatively low that hydraulic oil can flow to pressure
Preceding motor side, now system can not establish pressure, cause rear motor ineffective without driving force, four-wheel drive.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of self propelled harvester hydraulic pressure four-wheel drives
Dynamic shoe.
To achieve the above object, the present invention uses following technical proposals：
Self propelled harvester hydraulic pressure four-wheel drive shoe, including hydraulic manifold block, hydraulic flange, pipe joint, electromagnetism
Valve, pilot valve, controller, pump and speed probe, hydraulic manifold block outside set hydraulic flange and pipe joint, self-propelled harvest
The front wheels and rear wheels of machine are respectively provided with speed probe, and the pilot valve is arranged on hydraulic oil input channel, described to pump out hydraulic fluid port
Through being arranged in parallel damping hole on the pipeline between pilot valve and motor, the magnetic valve, speed probe are connected with controller,
The controller realizes the commutation of pilot valve by the opening and closing of magnetic valve.
Preferably, the self propelled harvester hydraulic pressure four-wheel drive shoe also includes overflow valve, and the overflow valve is set
It is placed on the pipeline between pilot valve and motor.
By setting overflow valve, effectively prevent that the pipeline pressure between pilot valve and motor is too high, it is whole so as to improve
The security that device uses.
Preferably, the self propelled harvester hydraulic pressure four-wheel drive shoe also includes repairing check valve, the repairing
Check valve is in parallel with overflow valve.By setting repairing check valve, effectively prevent motor from situation about being emptied occur.
The invention has the advantages that the present invention establishes system pressure by damping hole, rear wheel motor is set to produce driving force,
Drive vehicle operation, avoid front-wheel skid after system can not normal work situation.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of self propelled harvester hydraulic pressure four-wheel drive shoe provided by the invention；
Fig. 2 is the hydraulic schematic diagram of self propelled harvester hydraulic pressure four-wheel drive antiskid valve provided by the invention；
Wherein 1. hydraulic manifold blocks, 2. hydraulic flanges, 3. pipe joints, 4. anti-slip valves, 5. magnetic valves, 6. repairings are unidirectional
Valve, 7. overflow valves, 8. damping holes, 9. pilot valves.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, self propelled harvester hydraulic pressure four-wheel drive shoe, including hydraulic manifold block 1, hydraulic flange 2,
Pipe joint 3, anti-slip valve 4, controller, pump and speed probe, the outside of hydraulic manifold block 1 set hydraulic flange 2 and pipe joint
3, the front wheels and rear wheels of self propelled harvester are respectively provided with speed probe, and the magnetic valve 4 is arranged on hydraulic oil input channel,
The hydraulic fluid port that pumps out is through being arranged in parallel damping hole 8, the magnetic valve 5, speed probe on the pipeline between pilot valve 9 and motor
It is connected with controller, the controller realizes the commutation of pilot valve 9 by the opening and closing of magnetic valve 5.
Preferably, the self propelled harvester hydraulic pressure four-wheel drive shoe also includes overflow valve 7, the overflow valve 7
It is arranged on the pipeline between pilot valve 9 and motor.
Preferably, the self propelled harvester hydraulic pressure four-wheel drive shoe also includes repairing check valve 6, the repairing
Check valve 6 is in parallel with overflow valve 7, by setting repairing check valve 6, effectively prevents motor from situation about being emptied occur.
The self propelled harvester hydraulic pressure four-wheel drive shoe course of work of the present invention is as follows：
As shown in figure 1, the hydraulic oil of self propelled harvester is flowed out by pump, hydraulic oil enters front-wheel by adpting flange 2
Motor, electromagnetic valve oil return are flowed into fuel tank by pipe joint 3.
As shown in Fig. 2 A represents to pump out hydraulic fluid port, B represents motor input, and T represents fuel tank input, and Ps represents magnetic valve
Control oily input port.
When self propelled harvester front-wheel skids, speed probe detection front wheel rotation speed and rear wheel rotation speed, and by preceding rotation
Speed and rear wheel rotation speed are transmitted to controller, the controller storage front wheel rotation speed and rear wheel rotation speed, by front wheel rotation speed and rear rotation
Speed is compared, if the ratio of front wheel rotation speed and rear wheel rotation speed exceedes setting ratio, controller conducting magnetic valve, magnetic valve obtains
Electricity, pilot valve commutation, the closedown of pipeline where pilot valve, hydraulic oil reach B points by A points by damping hole 8, and the present invention is in guide
Damping hole 8 is set on the pipeline between valve and motor input, the pressure of system is established by damping hole 8 so that motor produces
Driving force, and then drive self propelled harvester to work by motor.
When self propelled harvester front-wheel is non-slip, speed probe detection front wheel rotation speed and rear wheel rotation speed, and by front-wheel
Rotating speed and rear wheel rotation speed are transmitted to controller, the controller by front wheel rotation speed compared with front wheel rotation speed setting value, if preceding rotation
Speed is less than front wheel rotation speed setting value, then the cut-off of controller control magnetic valve, hydraulic oil reach B points by pilot valve 9, reduce hydraulic pressure
System heat generation.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (1)
1. self propelled harvester hydraulic pressure four-wheel drive shoe, it is characterized in that, including hydraulic manifold block, hydraulic flange, pipe connect
Head, magnetic valve, pilot valve, controller, pump and speed probe, hydraulic manifold block outside set hydraulic flange and pipe joint, from
The front wheels and rear wheels for walking formula cropper are respectively provided with speed probe, and the pilot valve is arranged on hydraulic oil input channel, described
Hydraulic fluid port is pumped out through being arranged in parallel damping hole on the pipeline between pilot valve and motor, the magnetic valve, speed probe with control
Device connection processed, the controller realize the commutation of pilot valve by the opening and closing of magnetic valve；
The self propelled harvester hydraulic pressure four-wheel drive shoe also includes overflow valve, the overflow valve be arranged at pilot valve with
On pipeline between motor；
The self propelled harvester hydraulic pressure four-wheel drive shoe also includes repairing check valve, the repairing check valve and overflow
Valve is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104466.5A CN105508323B (en) | 2016-02-25 | 2016-02-25 | Self propelled harvester hydraulic pressure four-wheel drive shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104466.5A CN105508323B (en) | 2016-02-25 | 2016-02-25 | Self propelled harvester hydraulic pressure four-wheel drive shoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105508323A CN105508323A (en) | 2016-04-20 |
| CN105508323B true CN105508323B (en) | 2018-04-06 |
Family
ID=55716547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610104466.5A Active CN105508323B (en) | 2016-02-25 | 2016-02-25 | Self propelled harvester hydraulic pressure four-wheel drive shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105508323B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224318B (en) * | 2016-09-13 | 2018-01-12 | 九方泰禾国际重工(青岛)股份有限公司 | Off roader hydraulic pressure four-wheel drive HYDRAULIC CONTROL SYSTEM valve group |
| CN110701128A (en) * | 2018-08-27 | 2020-01-17 | 金福珍 | Control valve and working method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2081170A7 (en) * | 1970-03-12 | 1971-12-03 | Dba | |
| WO2011162179A1 (en) * | 2010-06-22 | 2011-12-29 | 日立建機株式会社 | Hydraulic control device for working vehicle |
| CN201792744U (en) * | 2010-08-31 | 2011-04-13 | 三一重工股份有限公司 | Single-pump dual-motor driving engineering vehicle and hydraulic system and control device thereof |
| CN102582425B (en) * | 2011-12-20 | 2015-06-17 | 徐州重型机械有限公司 | Walking hydraulic control system and self-walking type engineering machinery utilizing same |
| CN102583242B (en) * | 2012-03-09 | 2014-02-05 | 大连理工大学 | Method for preparing hydrogen gas through catalytic cracking of methane |
| CN203627358U (en) * | 2013-12-05 | 2014-06-04 | 云南昆船电子设备有限公司 | Hydraulic system of full-automatic tobacco leaf harvesting machine |
| CN203868011U (en) * | 2014-06-05 | 2014-10-08 | 鞍山森远路桥股份有限公司 | Traveling hydraulic control system of bituminous pavement maintenance vehicle |
| CN205371118U (en) * | 2016-02-25 | 2016-07-06 | 九方泰禾国际重工(青岛)股份有限公司 | Self -propelled harvester hydraulic pressure four wheel drive antiskid |
-
2016
- 2016-02-25 CN CN201610104466.5A patent/CN105508323B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105508323A (en) | 2016-04-20 |
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