CN109779996A - A kind of multifunction valve of control rice transplanter seedling platform lifting - Google Patents
A kind of multifunction valve of control rice transplanter seedling platform lifting Download PDFInfo
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- CN109779996A CN109779996A CN201910124373.2A CN201910124373A CN109779996A CN 109779996 A CN109779996 A CN 109779996A CN 201910124373 A CN201910124373 A CN 201910124373A CN 109779996 A CN109779996 A CN 109779996A
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- reversal
- lift cylinder
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 27
- 235000009566 rice Nutrition 0.000 title claims abstract description 27
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 239000002828 fuel tank Substances 0.000 claims abstract description 24
- 210000003746 feather Anatomy 0.000 claims abstract description 23
- 230000009471 action Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 58
- 230000007423 decrease Effects 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Lifting Devices For Agricultural Implements (AREA)
- Transplanting Machines (AREA)
Abstract
The invention belongs to rice transplanter technical fields, more particularly to a kind of multifunction valve of control rice transplanter seedling platform lifting, including sequentially connected reversal valve, shuttle valve, hydraulic control one-way valve, shut-off valve, one-way throttle valve and lift cylinder, the reversal valve is five position and four-way reversing valves, first oil outlet of the reversal valve is connected to the working connection of the first hydraulic fluid port of shuttle valve and hydraulic control one-way valve respectively, second oil outlet of the reversal valve is connected to the secondary hydraulic fluid port of the second hydraulic fluid port of shuttle valve and hydraulic control one-way valve respectively, the oil outlet of the shuttle valve is connected with feather valve, the throttling relief hole being connected to its secondary hydraulic fluid port is additionally provided on the hydraulic control one-way valve, the throttling relief hole is connect with fuel tank；The reversal valve includes upper raise-position, raise-position, middle position in throttling, throttle lower demotion and lower demotion, the oil outlet of the one-way throttle valve is connected to a chamber of lift cylinder, another chamber of the lift cylinder is connected to fuel tank, the lifting of the commutation action control lift cylinder of the reversal valve.
Description
Technical field
The invention belongs to rice transplanter technical field more particularly to a kind of multifunction valves of control rice transplanter seedling platform lifting.
Background technique
In order to promote the modernization and production domesticization of high-level farm machinery, rice transplanter is the agriculture of large area rice cultivation now
With mechanical high-tech product.Rice transplanter classification has high-speed transplanter and hand transplanting machine, and high-speed transplanter for area, imitate by big, rice transplanting
Rate is high, limit by field plot, and hand transplanting machine is used for small area, rice transplanting low efficiency, is limited by field plot, such as northeast
Landform, which has deeply, has shallow place that can only use high-speed transplanter, and shallow local high-speed transplanter and hand transplanting machine are ok, high speed
Rice transplanter is more by the favor of user.The valve of existing control high-speed transplanter seedling platform lifting, function is more single, such as Patent No.
201620440681.8, patent name is the patent document of " high-speed transplanter seedling case elevating mechanism Position of Hydraulic Cylinder control system "
" Hydraulic Power Transmission System includes hydraulic pump, 3-position 4-way servo reversing valve, hydraulic cylinder, safety valve for middle disclosure；Hydraulic pump, three
Position four-way servo reversing valve, hydraulic cylinder are sequentially connected；Amplification conversion element is signal gain element, the signal control by its gain
3-position 4-way servo reversing valve movement processed, adjusts the position of hydraulic cylinder ", and with reference to the Figure of description 1 of the patent document.
The above-mentioned prior art has the following deficiencies: that the lifting speed of 1. hydraulic cylinder is constant, can not linear regulation hydraulic cylinder
Lifting speed, is unable to satisfy the rice transplanting environment of multiplicity, and adaptability is weak；2. hydraulic cylinder declines zero of too fast easy impact seedling platform
Part shortens the service life of rice transplanter；3. there was only the overload protection of safety valve, poor safety performance in control system.Existing control
The valve of rice transplanter seedling platform lifting processed, is unable to satisfy high-speed transplanter to high quality and efficient pursuit, according to high-speed transplanter
Exploitation need, to widen product category, meet intra-company exploitation requirement, now need to design a kind of control rice transplanter seedling platform liter
The multifunction valve of drop.
Summary of the invention
For meet high-speed transplanter project seedling platform exploitation require, the present invention provide it is a kind of control rice transplanter seedling platform lifting
Multifunction valve.
To meet above-mentioned exploitation requirement, the technical solution adopted in the present invention is as follows, a kind of control rice transplanter seedling platform lifting
Multifunction valve, including sequentially connected reversal valve, shuttle valve, hydraulic control one-way valve, shut-off valve, one-way throttle valve and lift cylinder,
The reversal valve be five position and four-way reversing valves, the first oil outlet of the reversal valve respectively with the first hydraulic fluid port of shuttle valve and hydraulic control list
It is connected to the working connection of valve, the second oil outlet of the reversal valve is oily with the pair of the second hydraulic fluid port of shuttle valve and hydraulic control one-way valve respectively
Mouthful connection, the oil outlet of the shuttle valve is connected with feather valve, is additionally provided on the hydraulic control one-way valve and is connected to its secondary hydraulic fluid port
Throttle relief hole, and the throttling relief hole is connect with fuel tank；
The reversal valve includes upper raise-position, raise-position, middle position in throttling, throttle lower demotion and lower demotion, the one-way throttle
The oil outlet of valve is connected to a chamber of lift cylinder, another chamber of the lift cylinder is connected to fuel tank, the reversal valve
Commutation action control lift cylinder lifting.
Preferably, reversal valve is connected by hydraulic system fuel feeding of the fuel tank to the multifunction valve, the reversal valve and fuel tank
Overflow valve is provided on the oil circuit connect.Hydraulic oil reaches feather valve through shuttle valve and applies back pressure to it, because the pressure of feather valve can not
It adjusts, the pressure of the hydraulic system of the multifunction valve is controlled by overflow valve regulation at this time, and feather valve and overflow valve are with being combined into more function
The hydraulic system of energy threshold provides duplicate protection, improves the security performance of the multifunction valve.
Preferably, the oil communication that the feather valve is connect with reversal valve and fuel tank.When reversal valve connecting rod attonity, cut
Only when valve connecting rod attonity, oil circuit is eventually returned to fuel tank by opening feather valve, and oil circuit unloading pressure is small, and unloading response is fast.It cuts
It works when only valve only has oil circuit opening, throttling can also be used as, play the role of controlling seedling platform position, it is most important that play control
Rice transplanting is convenient in the effect of seedling platform terrain clearance position processed.
Further, the lift cylinder selects single-acting formula hydraulic cylinder.
The utility model has the advantages that
(1) multifunction valve of control rice transplanter seedling platform lifting of the invention, when the multifunction valve does not work: hydraulic oil is straight
It connects through feather valve oil return box, feather valve plays overload protective function to the multifunction valve, while that this is adjusted is multi-functional for overflow valve
Double protection is played in the pressure of the hydraulic system of valve, overflow valve and feather valve cooperation；
(2) multifunction valve of control rice transplanter seedling platform lifting of the invention, when multifunction valve work:
No matter shuttle valve is all work always, and hydraulic oil is all through shuttle valve to unloading 1. lift cylinder rises or falls
Valve back pressure makes feather valve be in normally off, just there was only the pressure of overflow valve control whole system, overflow valve and feather valve at this time
Double protection is played in cooperation；
2. raise-position and the lower demotion that throttles are linear in the throttling of reversal valve, linear speed regulation rising and the line of seedling platform are realized
Property speed regulation decline；
3. hydraulic-driven power makes the working connection of hydraulic control one-way valve open fluid-control one-way in control lift cylinder lifting process
Valve, and controlling lift cylinder decline process is that hydraulic-driven power makes the secondary hydraulic fluid port of hydraulic control one-way valve open hydraulic control one-way valve, the mistake
Cheng Jieliu relief hole plays a protective role to hydraulic control one-way valve；
4. one-way throttle valve its main hydraulic fluid port in lift cylinder uphill process is opened, its fuel-economizing during lift cylinder decline
Mouth is opened and plays throttling action, is corrupted to related components with this to protect seedling platform not receive large bearing capacity；
5. seedling platform, which rises, leans on hydraulic-driven power, the decline of seedling platform is self-possessed by seedling platform；
6. hydraulic control one-way valve has pressure maintaining performance, seedling platform lifting position can control, when hydraulic control one-way valve is the work of its valve body
Work, shut-off valve is open always at this time, and shut-off valve work when be exactly its valve body do not work seedling platform is played it is dual
Protective effect, in case seedling platform declines.
Detailed description of the invention
Fig. 1 is the hydraulic principle schematic diagram of the multifunction valve of present invention control rice transplanter seedling platform lifting；
In figure: 1, overflow valve, 2, feather valve, 3, reversal valve, 4, shuttle valve, 5, hydraulic control one-way valve, 6, shut-off valve, 7, unidirectional section
Flow valve, 8, lift cylinder；A, upper raise-position, raise-position on b, throttling, c, middle position, d, throttle lower demotion, e, lower demotion；1., reversal valve
Oil inlet, 2., the oil return opening of reversal valve, 3., the first oil outlet of reversal valve, 4., the second oil outlet of reversal valve, 5., shuttle
First hydraulic fluid port of valve, 6., the second hydraulic fluid port of shuttle valve, 7., the working connection of hydraulic control one-way valve, 8., the secondary hydraulic fluid port of hydraulic control one-way valve,
9., throttling relief hole, 10., the oil inlet of shut-off valve,The oil outlet of shut-off valve,The main hydraulic fluid port of one-way throttle valve,The oil outlet of one-way throttle valve,The oil saving port of one-way throttle valve.
Specific embodiment
Embodiment
As shown in Figure 1, a kind of multifunction valve of control rice transplanter seedling platform lifting, including reversal valve 3, shuttle valve 4, fluid-control one-way
Valve 5, shut-off valve 6, one-way throttle valve 7 and lift cylinder 8, the reversal valve of the present embodiment select Jiangsu fertile that high-new technology farming is equipped with
The reversal valve of the model 2ZF6-06-01-10-04 of limit company production, the lift cylinder 8 select single-acting formula hydraulic cylinder, institute
State reversal valve 3 be five position and four-way reversing valves, the first oil outlet of the reversal valve 3 1. respectively with the first hydraulic fluid port of shuttle valve 4 5. and
7. the working connection of hydraulic control one-way valve 5 is connected to, the second oil outlet of the reversal valve 3 4. respectively with the second hydraulic fluid port of shuttle valve 4 6. and
8. the secondary hydraulic fluid port of hydraulic control one-way valve 5 is connected to, 1. the oil inlet of the reversal valve 3 is connected to fuel tank, and gives more function by oil pump
2. the oil return opening of the hydraulic system fuel feeding of energy threshold, the reversal valve 3 is connected to fuel tank, the oil outlet of the shuttle valve 4, which is connected with, to be unloaded
Valve 2 is carried, the throttling relief hole being 8. connected to its secondary hydraulic fluid port is additionally provided on the hydraulic control one-way valve 5 9., the throttling relief hole
9. being connect with fuel tank；
10. the oil outlet of the hydraulic control one-way valve 5 is connected to the oil inlet of shut-off valve 6, the oil outlet of the shut-off valve 6
Respectively with the main hydraulic fluid port of one-way throttle valve 7And oil saving portConnection, the oil outlet of the one-way throttle valve 7And fuel-economizing
MouthfulIt is connected to a chamber of lift cylinder 8, another chamber of the lift cylinder 8 is connected to fuel tank；The reversal valve 3
Upper raise-position a including setting gradually, raise-position b, middle position c in throttling, throttle lower demotion d and lower demotion e, and the reversal valve 3 changes
Lifting to action control lift cylinder 8, lift cylinder 8 drive the lifting of seedling platform.
In order to improve the security performance of the multifunction valve, overflow is provided on the oil circuit that the reversal valve 3 is connect with fuel tank
The oil outlet of valve 1, the overflow valve 1 is connected to fuel tank, and hydraulic oil reaches feather valve 2 through shuttle valve 4, and feather valve 2 is made to generate back pressure,
The pressure of its feather valve 2 is system pressure, and oil circuit has overflow valve 1 only and plays pressure adjustment effect, overflow valve 1 to entire oil circuit at this time
Double protection is played with feather valve 2；In order to improve the multifunction valve hydraulic circuit unloading reaction speed, the unloading
The oil outlet of the oil communication that valve 2 is connect with reversal valve 3 and fuel tank, the feather valve 2 is connected to fuel tank.
Working principle is as follows:
When 6 connecting rod attonity of 3 connecting rod of reversal valve and shut-off valve, hydraulic circuit is eventually returned to fuel tank by opening feather valve 2；
When 3 connecting rod of reversal valve reaches the position upper raise-position a, and shut-off valve 6 is opened, oil circuit passes sequentially through the oil inlet of reversal valve 3
Mouth 1. with the first oil outlet 3., oil circuit is divided into two-way at this time, 5. a road binders opens shuttle valve 4 by the first hydraulic fluid port of shuttle valve 4, reaches
Feather valve 2 applies back pressure to it, and whole system pressure is adjusted by overflow valve 1 and controlled at this time, and another road binders reaches hydraulic control one-way valve 5
Working connection 7. open hydraulic control one-way valve 5, then successively by the oil inlet of shut-off valve 6 10. and oil outletIt successively opens unidirectional
The main hydraulic fluid port of throttle valve 7And oil outletLift cylinder 8 is finally reached, piston is opened and realizes the function that lift cylinder 8 is promoted
Energy；
Similarly, 3 connecting rod of reversal valve reaches the upper position raise-position b of throttling, and when shut-off valve 6 is opened, oil circuit and above-mentioned reversal valve 3 connect
Bar reaches the position raise-position a, and shut-off valve 6 is the same when opening, and is finally applied to lift cylinder 8, plays the role of oil cylinder promotion, only
Only difference is exactly that 3 aperture of reversal valve is different, and everywhere in throttle, the position upper raise-position a is on normally for the position raise-position b in throttling
Raise-position a is set, therefore will cause the difference of 8 rate of climb of lift cylinder, and the rate of climb of lift cylinder 8 is linearly adjustable at this time；
Since the lift cylinder 8 is single-acting formula hydraulic cylinder, when 3 connecting rod of reversal valve reaches shut-off valve 6 at the position lower demotion e
When opening, oil circuit pass sequentially through the oil inlet of reversal valve 3 1. with the second oil outlet 4., oil circuit is divided into two-way at this time, and a road binders is logical
6. the second hydraulic fluid port for crossing shuttle valve 4 opens shuttle valve 4, reach feather valve 2 to it and apply back pressure, whole system pressure is by overflow valve at this time
1 adjusts control, and 8. the secondary hydraulic fluid port that another road binders reaches hydraulic control one-way valve 5 passes through opens hydraulic control one-way valve 5, then lets out by throttling
It presses hole 9., oil is discharged at fuel tank, hydraulic control one-way valve 5 is kept open, while seedling platform leans on Gravitative Loads to lift cylinder 8, so
It is applied to the piston of lift cylinder 8 afterwards, the oil circuit of lift cylinder 8 passes sequentially through the oil outlet of one-way throttle valve 7And oil saving portOne-way throttle valve 7 at this time, only restriction effect, therefore the decline of lift cylinder 8 effectively avoids seedling relative to rising and can slow down
Platform impacts components when declining, and then oil circuit successively passes through the oil outlet of shut-off valve 6And oil inletIt is beaten before again
The hydraulic control one-way valve 5 opened, finally successively 3. 2. the first oil outlet through reversal valve 3 returns to fuel tank with oil return opening；
Similarly, the position demotion d and the lower position demotion e are also due to the position difference of 3 connecting rod of reversal valve under throttling, and cause to change
Different to valve 3 aperture and generate the difference of oil cylinder decrease speed, the decrease speed of lift cylinder 8 is linearly adjustable at this time.
Claims (4)
1. a kind of multifunction valve of control rice transplanter seedling platform lifting, it is characterised in that: including sequentially connected reversal valve (3), shuttle
Valve (4), hydraulic control one-way valve (5), shut-off valve (6), one-way throttle valve (7) and lift cylinder (8), the reversal valve (3) are five
Four-way reversing valve, the first oil outlet of the reversal valve (3) respectively with the first hydraulic fluid port of shuttle valve (4) and hydraulic control one-way valve (5)
Working connection connection, the second oil outlet of the reversal valve (3) respectively with the second hydraulic fluid port of shuttle valve (4) and hydraulic control one-way valve (5)
The connection of secondary hydraulic fluid port, the oil outlet of the shuttle valve (4) are connected with feather valve (2), be additionally provided on the hydraulic control one-way valve (5) and its
The throttling relief hole of secondary hydraulic fluid port connection, the throttling relief hole are connect with fuel tank；
The reversal valve (3) includes upper raise-position (a), raise-position (b), middle position (c) in throttling, throttle lower demotion (d) and lower demotion
(e), the oil outlet of the one-way throttle valve (7) is connected to a chamber of lift cylinder (8), the lift cylinder (8) it is another
A chamber is connected to fuel tank, the lifting of commutation action control lift cylinder (8) of the reversal valve (3).
2. the multifunction valve of control rice transplanter seedling platform lifting according to claim 1, it is characterised in that: reversal valve (3) is logical
Hydraulic system fuel feeding of the fuel tank to the multifunction valve is crossed, is provided with overflow valve on the oil circuit that the reversal valve (3) connect with fuel tank
(1)。
3. the multifunction valve of control rice transplanter seedling platform lifting according to claim 2, it is characterised in that: the feather valve
(2) oil communication being connect with reversal valve (3) and fuel tank.
4. the multifunction valve of control rice transplanter seedling platform lifting according to claim 1, it is characterised in that: the lift cylinder
(8) single-acting formula hydraulic cylinder is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124373.2A CN109779996A (en) | 2019-02-20 | 2019-02-20 | A kind of multifunction valve of control rice transplanter seedling platform lifting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124373.2A CN109779996A (en) | 2019-02-20 | 2019-02-20 | A kind of multifunction valve of control rice transplanter seedling platform lifting |
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| Publication Number | Publication Date |
|---|---|
| CN109779996A true CN109779996A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910124373.2A Pending CN109779996A (en) | 2019-02-20 | 2019-02-20 | A kind of multifunction valve of control rice transplanter seedling platform lifting |
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| Country | Link |
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| CN (1) | CN109779996A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821908A (en) * | 2019-11-07 | 2020-02-21 | 杭州发达齿轮箱集团有限公司 | Marine gearbox reversing valve capable of being connected and arranged quickly and control method thereof |
| CN113898017A (en) * | 2021-10-11 | 2022-01-07 | 中联重科股份有限公司 | Multi-way valve and excavator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003239908A (en) * | 2002-02-20 | 2003-08-27 | Kanzaki Kokyukoki Mfg Co Ltd | Hydraulic pressure control device of working machine |
| CN102245907A (en) * | 2008-12-15 | 2011-11-16 | 斗山英维高株式会社 | Fluid flow control apparatus for hydraulic pump of construction machine |
| CN103206419A (en) * | 2013-04-18 | 2013-07-17 | 三一汽车起重机械有限公司 | Rotary hydraulic system and construction machinery |
| CN103244496A (en) * | 2013-05-13 | 2013-08-14 | 三一汽车起重机械有限公司 | Rotary control valve unit, rotary control hydraulic system and crane |
| CN106900234A (en) * | 2017-04-07 | 2017-06-30 | 农业部南京农业机械化研究所 | A kind of drive system of rice transplanter |
| CN207999402U (en) * | 2018-01-13 | 2018-10-23 | 裕泰液压技术(上海)有限公司 | A kind of hydraulic control valve group of wheel steering |
| CN209671301U (en) * | 2019-02-20 | 2019-11-22 | 江苏沃得高新农业装备有限公司 | A kind of multifunction valve of control rice transplanter seedling platform lifting |
-
2019
- 2019-02-20 CN CN201910124373.2A patent/CN109779996A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003239908A (en) * | 2002-02-20 | 2003-08-27 | Kanzaki Kokyukoki Mfg Co Ltd | Hydraulic pressure control device of working machine |
| CN102245907A (en) * | 2008-12-15 | 2011-11-16 | 斗山英维高株式会社 | Fluid flow control apparatus for hydraulic pump of construction machine |
| CN103206419A (en) * | 2013-04-18 | 2013-07-17 | 三一汽车起重机械有限公司 | Rotary hydraulic system and construction machinery |
| CN103244496A (en) * | 2013-05-13 | 2013-08-14 | 三一汽车起重机械有限公司 | Rotary control valve unit, rotary control hydraulic system and crane |
| CN106900234A (en) * | 2017-04-07 | 2017-06-30 | 农业部南京农业机械化研究所 | A kind of drive system of rice transplanter |
| CN207999402U (en) * | 2018-01-13 | 2018-10-23 | 裕泰液压技术(上海)有限公司 | A kind of hydraulic control valve group of wheel steering |
| CN209671301U (en) * | 2019-02-20 | 2019-11-22 | 江苏沃得高新农业装备有限公司 | A kind of multifunction valve of control rice transplanter seedling platform lifting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821908A (en) * | 2019-11-07 | 2020-02-21 | 杭州发达齿轮箱集团有限公司 | Marine gearbox reversing valve capable of being connected and arranged quickly and control method thereof |
| CN110821908B (en) * | 2019-11-07 | 2024-05-03 | 杭州发达齿轮箱集团有限公司 | Marine gearbox reversing valve capable of being connected and discharged quickly and control method thereof |
| CN113898017A (en) * | 2021-10-11 | 2022-01-07 | 中联重科股份有限公司 | Multi-way valve and excavator |
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