CN103711740B - A kind of combine-harvester hydraulic control system - Google Patents
A kind of combine-harvester hydraulic control system Download PDFInfo
- Publication number
- CN103711740B CN103711740B CN201310725172.0A CN201310725172A CN103711740B CN 103711740 B CN103711740 B CN 103711740B CN 201310725172 A CN201310725172 A CN 201310725172A CN 103711740 B CN103711740 B CN 103711740B
- Authority
- CN
- China
- Prior art keywords
- valve
- chamber
- winder
- guiding valve
- unloading
- Prior art date
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 abstract description 19
- 230000009467 reduction Effects 0.000 description 7
- 235000013339 cereals Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 241000209094 Oryza Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000000359 Triticum dicoccon Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of hydraulic control system, especially relate to a kind of Novel hydraulic control system for combine harvester.When its combine-harvester operation mechanism hydraulic system mainly solved existing for prior art operates multiple valve at the same time, the most conference of delivery pressure of pump exceedes the ultimate pressure that system can bear, very easily damage oil hydraulic pump and pipeline, and each operation mechanism actual flow demand difference is very large, but working pump always full flow supplies each selector valve, this just cannot meet the traffic demand of each operation mechanism simultaneously, the technical problem of poor controllability etc.The present invention is made up of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve three valves, two-way guiding valve is connected with ceding of Taiwan cylinder, left steering cylinder, right steering cylinder by pipeline, winder single channel guiding valve is connected with winder cylinder by pipeline, unloading single channel guiding valve is connected with unloading cylinder by pipeline, and the return opening of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve is by being connected in parallel.
Description
Technical field
The present invention relates to a kind of hydraulic control system, especially relate to a kind of combine-harvester hydraulic control system.
Background technique
At present, crops harvesting is the hand-held reaping hook Manpower harvester of peasant substantially, and because its rice shoot of establishing in large scale is mostly crawled on ground, harvesting is wasted time and energy, and its deficiency is, needs manpower many, and labor intensity is large, and efficiency is low.Chinese patent discloses a kind of rape, rice wheat combine harvester (publication number: CN103125203A), it comprises frame, power mechanism, rack-mounted header mechanism, separating mechanism after header mechanism, feeding mechanism, the grain shell segregating unit that separating mechanism grain export connects; Wherein grain shell segregating unit involving vibrations sorting screen, blow shell blower fan, go out faucal; Vibration sorting screen comprises the vibration sorting screen basket driven by power mechanism, is connected to the upper strata sieve adjustable-angle sieve on vibration sorting screen basket and lower floor's net form sieve; Sieve adjustable-angle sieve comprises the sieve bar that two ends are through parallel arrangement on vibration sorting screen basket side, and be fixed on the sieve on sieve bar, sieve bar and adjustment sheet cooperation place u forming, adjustment sheet is connected on adjustable lever, and adjustable lever is connected with regulating handle; Sieve is n shape sieve or triangle sieve, and the tight dust of every sheet and is fixed on sieve bar; Sieve adjustable-angle sieve is for two-layer; comparatively last layer is fixed on vibration sorting screen basket at separating mechanism grain export jointing front portion sieve bar; sieve on it is fish scale shape sieve; the mesh of screen cloth I be semiclosed; thereafter be the sieve of adjustable-angle and extend in the middle part of vibration sorting screen basket; comparatively descend one deck to be all the sieve of adjustable-angle, it extends to out faucal place from fish scale shape sieve tail end.When but this combine-harvester operation mechanism hydraulic system operates multiple valve at the same time, the delivery pressure of pump is the pressure sum of each valve load, the most conference of this pressure exceedes the ultimate pressure that system can bear, very easily damage oil hydraulic pump and pipeline, and each operation mechanism actual flow demand difference is very large, but working pump always full flow supplies each selector valve, this just cannot meet the traffic demand of each operation mechanism simultaneously, poor controllability.
Summary of the invention
The present invention is to provide a kind of combine-harvester hydraulic control system, when its combine-harvester operation mechanism hydraulic system mainly solved existing for prior art operates multiple valve at the same time, the delivery pressure of pump is the pressure sum of each valve load, the most conference of this pressure exceedes the ultimate pressure that system can bear, very easily damage oil hydraulic pump and pipeline, and each operation mechanism actual flow demand difference is very large, but working pump always full flow supplies each selector valve, this just cannot meet the traffic demand of each operation mechanism simultaneously, the technical problem of poor controllability etc.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of combine-harvester hydraulic control system of the present invention, be made up of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve three valves, it is characterized in that described two-way guiding valve is connected with ceding of Taiwan cylinder, left steering cylinder, right steering cylinder by pipeline, winder single channel guiding valve is connected with winder cylinder by pipeline, unloading single channel guiding valve is connected with unloading cylinder by pipeline, and the return opening of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve is by being connected in parallel.Adopt parallel-connection structure between each selector valve, avoid the problem of pressure superposition when simultaneously handling several valve, protect oil hydraulic pump and pipeline.
As preferably, described two-way guiding valve includes two-way guiding valve valve body, two-way guiding valve plunger, ceding of Taiwan valve rod, pressure compensation spool is arranged with in parallel in two-way guiding valve valve body, two-way guiding valve plunger is connected with the first hydraulic lock spool, be provided with the first hydraulic lock valve gap outside first hydraulic lock spool, the outer end of the first hydraulic lock spool is connected with the first lock and blocks up; Ceding of Taiwan valve rod is connected with the first spring, is provided with A1 chamber, B1 chamber, T chamber, LS chamber in the valve pocket at ceding of Taiwan valve rod place; Pressure compensation spool is connected with the second spring, and the outer end of pressure compensation spool is provided with high-pressure overflow valve, is provided with P1 chamber, P chamber, P2 chamber, LS chamber in the valve pocket at pressure compensation spool place; P2 chamber is communicated with low pressure relief valve, speed governing spool, throttling screw plug respectively, and speed governing spool connects the 3rd spring, and the valve pocket at speed governing spool place is communicated with P3 chamber; Also be provided with in two-way guiding valve valve body and turn to valve rod, turn in the valve pocket at valve rod place and be provided with T chamber, C2 chamber, P3 chamber, D2 chamber, A2 chamber, B2 chamber.
Pump is next oily enters P chamber, when all valve rods of inoperation, P chamber is next oily enters pressure compensation spool left end via the aperture in pressure compensation spool, the spring force overcoming the second spring moves right, the passage opened between P and P2 enters P2 chamber, then, after the throttling of throttling screw plug, the oil suction chamber of each selector valve in parallel is below entered.When all commutation valve rods of inoperation, this fluid leads directly to oil circuit via each selector valve meta oil circuit below, realizes Low-pressure load discharge.Throttling screw plug is is herein imported and exported P2, P3 and is communicated with the control chamber of speed governing spool, spring chamber respectively.When the flow of throttling screw plug 16 restriction is less, before and after restriction, pressure reduction is less, and speed governing spool is failure to actuate under the pre-compression force of the 3rd spring; When flow through throttling screw plug restriction flow exceed the flow value of setting time, before and after restriction, pressure reduction becomes large, makes speed governing spool overcome the 3rd spring force and moves to left, open the passage of P2 and oil back chamber T, excess traffic off-load, therefore the flow substantially constant in P3 chamber, play the object of speed governing.When different type of machines is different to traffic demand, realize easily by the size of restriction on change throttling screw plug.
When operation ceding of Taiwan valve rod stretches out or advances, the opening of LS chamber and T oil back chamber is closed, A1 or B1 working hole is connected by the hole on ceding of Taiwan valve rod and LS, and two ends, pressure compensation spool left and right pressure reduction is P1-P2, is the pressure reduction that ceding of Taiwan valve rod valve port produces.According to restriction flow formula
, at pressure reduction
when=P1-P2 is constant, choke area f is also constant, the flow Q flowing through valve port is constant.Herein because the second spring is softer, therefore
=P1-P2 ≈ is constant, i.e. pressure reduction
constant condition is set up, and goes the flow of ceding of Taiwan oil cylinder and its load to have nothing to do, is only directly proportional to valve rod opening area, namely only relevant with valve rod travel, realizes proportional control.When ceding of Taiwan connection required flow less (ceding of Taiwan valve rod opening is little), pressure compensation spool moves to right under the effect of pressure reduction, excess traffic enters P2 chamber, enters the oil suction chamber P3 of a few way reversing valve below after series flow control valve speed governing, namely the ceding of Taiwan can with a few road action simultaneously below.The ceding of Taiwan need whole flow work (ceding of Taiwan valve rod opening is large) time, pressure compensation spool reset, after a few road do not have flow to supply, akinesia, namely realizes ceding of Taiwan priority function.
The working connection of ceding of Taiwan connection is: when operating ceding of Taiwan valve rod and stretching out, P chamber is come oily via P-P1-A1 passage, opens hydraulic lock spool, enters ceding of Taiwan oil cylinder by actuator port, realize the rising of the ceding of Taiwan.When operating ceding of Taiwan valve rod and advancing, P chamber is come oily via P-P1-B1 passage, enters the control chamber on plunger 4 left side, promotion plunger moves right, back down hydraulic lock spool, the pressure oil of ceding of Taiwan oil cylinder leads to oil sump tank through A1 chamber and oil back chamber T-phase, and the ceding of Taiwan declines under gravity.
When operation turns to valve rod, first cut off the oil circuit between P3 chamber and C2 chamber, then P3 chamber is connected with A2 chamber or B2 chamber, and pressure oil enters right steering cylinder or left steering cylinder by P3, A2 or B2, promotes corresponding oil cylinder movement, realizes vehicle right-hand rotation or left-hand rotation.Turn to the fluid of return opening to connect oil return through D2 mouth and oil back chamber T simultaneously.
The effect of high-pressure overflow valve is restriction ceding of Taiwan connection maximum pressure, prevents the ceding of Taiwan from joining overload.The effect of low pressure relief valve is each commutation connection maximum pressure after restriction, each commutation connection overload after preventing.
As preferably, described winder single channel guiding valve includes winder valve body, winder plunger, winder valve rod is arranged with in parallel in winder valve body, winder plunger is connected with the second hydraulic lock spool, be provided with the second hydraulic lock valve gap outside second hydraulic lock spool, the outer end of the second hydraulic lock spool is connected with the second lock and blocks up; Be provided with T chamber, B3 chamber, P3 chamber, A3 chamber, C2 chamber, C3 chamber in the valve pocket at winder valve rod place, winder valve rod is connected with the 4th spring.
During each valve rod of inoperation, as mentioned above, the oil in C2 chamber leads to next connection selector valve meta oil suction chamber via C3 chamber, then by next connection meta oil return, realizes oil hydraulic pump off-load.When P3 chamber has flow to supply, operation winder valve rod stretches out, and the passage between C2 and C3 chamber is cut off, meanwhile, P3 chamber and A3 chamber are connected, and the pressure oil in P3 chamber thus passage goes to hydraulic lock spool front end, open hydraulic lock spool, enter winder cylinder, realize the rising of winder cylinder.In like manner, when operation winder valve rod advances, passage between C2 and C3 chamber is cut off, meanwhile, P3 chamber and B3 chamber are connected, and A3 chamber and oil back chamber T connect, the pressure oil in P3 chamber enters the control end on the winder plunger left side, promotion winder plunger moves to right and opens hydraulic lock guiding valve, and the pressure oil in winder cylinder connects oil return through hydraulic lock valve port of slide valve, A3 chamber and oil back chamber T, and winder cylinder realizes declining under the deadweight of winder mechanism.
As preferably, described unloading single channel guiding valve includes unloading valve body, is provided with unloading valve rod in unloading valve body, is provided with T chamber, B4 chamber, P3 chamber, A4 chamber, C3 chamber, C4 chamber in the valve pocket at unloading valve rod place, and unloading valve rod is connected with the 5th spring.
During each valve rod of inoperation, as mentioned above, the oil in C2 chamber leads to next connection selector valve meta oil suction chamber via C3 chamber, then by next connection meta oil return, realizes oil hydraulic pump off-load.When P3 chamber has flow to supply, operation unloading valve rod stretches out, and the passage between C3 and C4 chamber is cut off, and meanwhile, P3 chamber and A4 chamber are connected, and B4 chamber and oil back chamber T connect, the oil-feed of unloading cylinder rodless cavity, and the oil return of unloading cylinder rod chamber, realizes unloading cylinder and stretch out.In like manner, operation winder valve rod advances, and the passage between C2 and C3 chamber is cut off, and meanwhile, P3 chamber and B4 chamber are connected, and A4 chamber and oil back chamber T connect, the oil-feed of unloading cylinder rod chamber, rodless cavity oil return, realizes unloading cylinder and retracts.
As preferably, the two ends of described ceding of Taiwan valve rod are respectively equipped with protecgulum, bonnet, and protecgulum place is provided with supporting screw.
As preferably, described two-way guiding valve plunger, the outer end of pressure compensation spool are provided with screw plug.
As preferably, the two ends of described winder valve rod are respectively equipped with protecgulum, bonnet.
As preferably, the two ends of described unloading valve rod are respectively equipped with protecgulum, bonnet.
Therefore, adopt parallel-connection structure between each selector valve of the present invention, avoid the problem of pressure superposition when simultaneously handling several valve, protect oil hydraulic pump and pipeline; Before ceding of Taiwan selector valve, arrange pressure-compensated valve, ceding of Taiwan working flow and the proportional relation of valve rod openings of sizes, realize the proportional control of taiwan cut off and landing speed, namely have Ioad-sensing control function; The ceding of Taiwan is preferential, when namely the ceding of Taiwan and other operation mechanisms work simultaneously, and preferential guarantee ceding of Taiwan action; Adopt overflowing and speed valve, series flow control valve each selector valve below can be worked under the flow of coupling, and working flow substantially constant, do not affect by engine speed, controllability is good; Series flow control valve adopts the throttle orifice of throttling screw plug formula, by changing the throttling screw plug of the throttle orifice of different sizes, reaching the object changing flow fast, being suitable for different types.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is a kind of schematic diagrams of the present invention;
Accompanying drawing 3 is a kind of structural representations of two-way guiding valve of the present invention;
Accompanying drawing 4 is side structure schematic diagram of Fig. 3;
Accompanying drawing 5 is A-A cross-sectional view of Fig. 3;
Accompanying drawing 6 is B-B cross-sectional view of Fig. 3;
Accompanying drawing 7 is C-C cross-sectional view of Fig. 4;
Accompanying drawing 8 is structural representations of winder single channel guiding valve of the present invention;
Accompanying drawing 9 is structural representations of unloading single channel guiding valve of the present invention.
Component in figure, position and numbering: ceding of Taiwan cylinder 1, left steering cylinder 2, right steering cylinder 3, winder cylinder 4, unloading cylinder 5, two-way guiding valve valve body 6, two-way guiding valve plunger 7, ceding of Taiwan valve rod 8, pressure compensation spool 9, first hydraulic lock spool 10, first hydraulic lock valve gap 11, first lock stifled 12, first spring 13, second spring 14, high-pressure overflow valve 15, low pressure relief valve 16, speed governing spool 17, throttling screw plug 18, 3rd spring 19, turn to valve rod 20, winder valve body 21, winder plunger 22, winder valve rod 23, second hydraulic lock spool 24, second hydraulic lock valve gap 25, second lock stifled 26, 4th spring 27, unloading valve body 28, unloading valve rod 29, 5th spring 30, protecgulum 31, bonnet 32, supporting screw 33, screw plug 34.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.
Embodiment: a kind of combine-harvester hydraulic control system of this example, as shown in Figure 1, Figure 2, be made up of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve three valves, it is characterized in that described two-way guiding valve is connected with ceding of Taiwan cylinder 1, left steering cylinder 2, right steering cylinder 3 by pipeline, winder single channel guiding valve is connected with winder cylinder 4 by pipeline, unloading single channel guiding valve is connected with unloading cylinder 5 by pipeline, and the return opening of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve is by being connected in parallel.
As Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, two-way guiding valve includes two-way guiding valve valve body 6, two-way guiding valve plunger 7, ceding of Taiwan valve rod 8, pressure compensation spool 9 is arranged with in parallel in two-way guiding valve valve body, two-way guiding valve plunger is connected with the first hydraulic lock spool 10, the outer end being provided with the first hydraulic lock valve gap 11, first hydraulic lock spool outside first hydraulic lock spool is connected with the first lock stifled 12; Ceding of Taiwan valve rod is connected with the first spring 13, is provided with A1 chamber, B1 chamber, T chamber, LS chamber in the valve pocket at ceding of Taiwan valve rod place; Pressure compensation spool is connected with the second spring 14, and the outer end of pressure compensation spool is provided with high-pressure overflow valve 15, is provided with P1 chamber, P chamber, P2 chamber, LS chamber in the valve pocket at pressure compensation spool place; P2 chamber is communicated with low pressure relief valve 16, speed governing spool 17, throttling screw plug 18 respectively, and speed governing spool connects the 3rd spring 19, and the valve pocket at speed governing spool place is communicated with P3 chamber; Also be provided with in two-way guiding valve valve body 6 and turn to valve rod 20, turn in the valve pocket at valve rod place and be provided with T chamber, C2 chamber, P3 chamber, D2 chamber, A2 chamber, B2 chamber.The two ends of ceding of Taiwan valve rod are respectively equipped with protecgulum 31, bonnet 32, and protecgulum place is provided with supporting screw 33.The outer end of two-way guiding valve plunger 7, pressure compensation spool 9 is provided with screw plug 34.
As Fig. 8, winder single channel guiding valve includes winder valve body 21, winder plunger 22, winder valve rod 23 is arranged with in parallel in winder valve body, winder plunger is connected with the second hydraulic lock spool 24, the outer end being provided with the second hydraulic lock valve gap 25, second hydraulic lock spool outside second hydraulic lock spool is connected with the second lock stifled 26; Be provided with T chamber, B3 chamber, P3 chamber, A3 chamber, C2 chamber, C3 chamber in the valve pocket at winder valve rod place, winder valve rod is connected with the 4th spring 27.The two ends of winder valve rod are respectively equipped with protecgulum 31, bonnet 32.
As Fig. 9, unloading single channel guiding valve includes unloading valve body 28, is provided with unloading valve rod 29 in unloading valve body, is provided with T chamber, B4 chamber, P3 chamber, A4 chamber, C3 chamber, C4 chamber in the valve pocket at unloading valve rod place, and unloading valve rod is connected with the 5th spring 30.The two ends of unloading valve rod are respectively equipped with protecgulum 31, bonnet 32.
The foregoing is only specific embodiments of the invention, but structure characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (7)
1. a combine-harvester hydraulic control system, be made up of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve three valves, it is characterized in that described two-way guiding valve is connected with ceding of Taiwan cylinder (1), left steering cylinder (2), right steering cylinder (3) by pipeline, winder single channel guiding valve is connected with winder cylinder (4) by pipeline, unloading single channel guiding valve is connected with unloading cylinder (5) by pipeline, and the return opening of two-way guiding valve, winder single channel guiding valve, unloading single channel guiding valve is connected in parallel; Two-way guiding valve includes two-way guiding valve valve body (6), two-way guiding valve plunger (7), ceding of Taiwan valve rod (8), pressure compensation spool (9) is arranged with in parallel in two-way guiding valve valve body, two-way guiding valve plunger is connected with the first hydraulic lock spool (10), be provided with the first hydraulic lock valve gap (11) outside first hydraulic lock spool, the outer end of the first hydraulic lock spool is connected with the first lock stifled (12); Ceding of Taiwan valve rod is connected with the first spring (13), is provided with A1 chamber, B1 chamber, T chamber, LS chamber in the valve pocket at ceding of Taiwan valve rod place; Pressure compensation spool is connected with the second spring (14), and the outer end of pressure compensation spool is provided with high-pressure overflow valve (15), is provided with P1 chamber, P chamber, P2 chamber, LS chamber in the valve pocket at pressure compensation spool place; P2 chamber is communicated with low pressure relief valve (16), speed governing spool (17), throttling screw plug (18) respectively; Also be provided with in two-way guiding valve valve body (6) and turn to valve rod (20), turn in the valve pocket at valve rod place and be provided with T chamber, C2 chamber, P3 chamber, D2 chamber, A2 chamber, B2 chamber, speed governing spool connects the 3rd spring (19), and the valve pocket at speed governing spool place is communicated with P3 chamber.
2. a kind of combine-harvester hydraulic control system according to claim 1, it is characterized in that described winder single channel guiding valve includes winder valve body (21), winder plunger (22), winder valve rod (23) is arranged with in parallel in winder valve body, winder plunger is connected with the second hydraulic lock spool (24), be provided with the second hydraulic lock valve gap (25) outside second hydraulic lock spool, the outer end of the second hydraulic lock spool is connected with the second lock stifled (26); Be provided with T chamber, B3 chamber, P3 chamber, A3 chamber, C2 chamber, C3 chamber in the valve pocket at winder valve rod place, winder valve rod is connected with the 4th spring (27).
3. a kind of combine-harvester hydraulic control system according to claim 1, it is characterized in that described unloading single channel guiding valve includes unloading valve body (28), unloading valve rod (29) is provided with in unloading valve body, be provided with T chamber, B4 chamber, P3 chamber, A4 chamber, C3 chamber, C4 chamber in the valve pocket at unloading valve rod place, unloading valve rod is connected with the 5th spring (30).
4. a kind of combine-harvester hydraulic control system according to claim 1, it is characterized in that the two ends of described ceding of Taiwan valve rod (8) are respectively equipped with protecgulum (31), bonnet (32), protecgulum place is provided with supporting screw (33).
5. a kind of combine-harvester hydraulic control system according to claim 1, is characterized in that described two-way guiding valve plunger (7), the outer end of pressure compensation spool (9) is provided with screw plug (34).
6. a kind of combine-harvester hydraulic control system according to claim 2, is characterized in that the two ends of described winder valve rod (23) are respectively equipped with protecgulum (31), bonnet (32).
7. a kind of combine-harvester hydraulic control system according to claim 3, is characterized in that the two ends of described unloading valve rod (29) are respectively equipped with protecgulum (31), bonnet (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725172.0A CN103711740B (en) | 2013-12-25 | 2013-12-25 | A kind of combine-harvester hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725172.0A CN103711740B (en) | 2013-12-25 | 2013-12-25 | A kind of combine-harvester hydraulic control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711740A CN103711740A (en) | 2014-04-09 |
| CN103711740B true CN103711740B (en) | 2016-02-10 |
Family
ID=50404991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725172.0A Active CN103711740B (en) | 2013-12-25 | 2013-12-25 | A kind of combine-harvester hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711740B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454722B (en) * | 2014-10-29 | 2017-06-16 | 浙江阿凡特精密设备制造有限公司 | A kind of hydraulic multitandem valve |
| CN106523447A (en) * | 2016-12-30 | 2017-03-22 | 湖州生力液压有限公司 | Miniature two-way hydraulic control system |
| CN107044462A (en) * | 2016-12-30 | 2017-08-15 | 江苏真绩机械制造有限公司 | The many hydraulic valve integrated systems of united reaper |
| CN107046927B (en) * | 2017-05-25 | 2024-03-12 | 农业部南京农业机械化研究所 | Hydraulic transmission system for independent header of combine harvester and application method of hydraulic transmission system |
| CN108953261B (en) * | 2018-09-11 | 2023-07-11 | 圣邦集团有限公司 | Hydraulic control system and control method for crawler-type harvester |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2622451Y (en) * | 2003-05-25 | 2004-06-30 | 湖州生力液压有限公司 | Single handle operated lifting/lowering, steering hydraulic integrated valve |
| JP2009261304A (en) * | 2008-04-24 | 2009-11-12 | Iseki & Co Ltd | Device for controlling hydraulic pressure for lifting and lowering reaping device in combine harvester |
| CN201866002U (en) * | 2010-11-30 | 2011-06-15 | 湖州生力液压有限公司 | Superposed modular manual combined valve of harvester |
| CN201884352U (en) * | 2010-11-30 | 2011-06-29 | 湖州生力液压有限公司 | Electrohydraulic control combination valve for harvester |
| CN202579399U (en) * | 2012-05-10 | 2012-12-05 | 湖州生力液压有限公司 | Combined hydraulic valve for harvester |
| CN103104570B (en) * | 2013-01-30 | 2016-06-08 | 湖州生力液压有限公司 | For overflow structure and the hydraulic integrated valve of reaper hydraulic integrated valve |
| CN203201892U (en) * | 2013-03-19 | 2013-09-18 | 临海市乐建液压件有限公司 | Hydraulic valve |
| CN203670329U (en) * | 2013-12-25 | 2014-06-25 | 新魁液压技术有限公司 | Novel hydraulic control system of combine harvester |
-
2013
- 2013-12-25 CN CN201310725172.0A patent/CN103711740B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103711740A (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103711740B (en) | A kind of combine-harvester hydraulic control system | |
| CN105134695B (en) | A kind of automatically controlled opening and closing core hydraulic system and engineering machinery | |
| CN105443480B (en) | Work connection valve body structure and proportional multi-way valve | |
| CN105201944B (en) | Flux amplification valve and steering hydraulic system | |
| CN201218248Y (en) | Multifunctional integration composite valve | |
| DE112015006246T5 (en) | Air suspension system | |
| CN103727267B (en) | Reaper multi-way valve | |
| CN202851491U (en) | Load-sensitive multi-way valve used in loader variable system | |
| DE112018000542B4 (en) | Suspension system | |
| CN109996944A (en) | Length-adjustable connecting rod with control device | |
| CN203670329U (en) | Novel hydraulic control system of combine harvester | |
| CN108547810B (en) | Hydraulic control system of energy-saving grain combine harvester | |
| CN103742682B (en) | Multiway valve for harvesters | |
| CN203604723U (en) | Multi-way valve of combine-harvester | |
| WO2009015502A1 (en) | Control device for at least two hydraulic drives | |
| CN203081879U (en) | Hydraulic control loop | |
| DE102018210471B3 (en) | Hoist suspension and hoist | |
| CN208456938U (en) | A kind of hydraulic control system of energy-efficient grain combine | |
| CN204610967U (en) | A kind of agricultural machinery ceding of Taiwan switching valve | |
| CN104454722B (en) | A kind of hydraulic multitandem valve | |
| CN202913450U (en) | Pressure compensator used for loader | |
| CN104192201B (en) | Hydraulic steering control valve and hydraulic steering system | |
| CN109779996A (en) | A kind of multifunction valve of control rice transplanter seedling platform lifting | |
| JP2009261266A (en) | Hydraulic circuit for lifting and lowering reaping part of combine harvester | |
| CN211116892U (en) | Hydraulic control system of rice harvester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180905 Address after: 311217 4387 Road four, Xinjie, Xiaoshan District, Hangzhou, Zhejiang Patentee after: ZHEJIANG AFANTE PREC EQUIPMENT MFG Co.,Ltd. Address before: 311217 Zhongsheng village, four road extension section, Xinjie Town, Xiaoshan District, Hangzhou, Zhejiang Patentee before: XINKUI HYDRAULIC ENGINEERING CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311217 4387 Road four, Xinjie, Xiaoshan District, Hangzhou, Zhejiang Patentee after: Zhejiang Avant Hydraulic Technology Co.,Ltd. Address before: 311217 4387 Road four, Xinjie, Xiaoshan District, Hangzhou, Zhejiang Patentee before: ZHEJIANG AFANTE PREC EQUIPMENT MFG Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |