CN102792797B - Electro-hydraulic control suspension device - Google Patents
Electro-hydraulic control suspension device Download PDFInfo
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- CN102792797B CN102792797B CN201210274893.XA CN201210274893A CN102792797B CN 102792797 B CN102792797 B CN 102792797B CN 201210274893 A CN201210274893 A CN 201210274893A CN 102792797 B CN102792797 B CN 102792797B
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- pull bar
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- draw bar
- chain connection
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- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000009313 farming Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The invention discloses an electro-hydraulic control suspension device. The electro-hydraulic control suspension device comprises a frame, a suspension assembly, and a controller, wherein the suspension assembly comprises an angle sensor, a left upper draw bar, a sonic sensor, a hydraulic cylinder, a spring damper, a zipper, a position adjusting rod, a left lower draw bar, a reflecting plate, a right upper draw bar, a right lower draw bar, and a transmission shaft, wherein the transmission shaft is fixed with the frame through a bearing seat; the left upper draw bar and the right upper draw bar are respectively fixed on both ends of the transmission shaft; the front ends of the left lower draw bar and the right lower draw bar are hinged with the frame; the spring damper and the zipper are arranged between the left upper draw bar and the left lower draw bar and between the right upper draw bar and the right lower draw bar; the angle sensor is fixed at the hinged position of the left lower draw bar and the frame; both ends of the position adjusting rod are respectively hinged with the frame and a tiller; the sonic sensor and the reflecting plate are fixed on the position adjusting rod; both ends of the hydraulic cylinder are respectively hinged with the frame and the left upper draw bar; and the overall device is controlled by the controller. The electro-hydraulic control suspension device disclosed by the invention can precisely set and real-timely monitor the tilling depth, and has high farmland profiling performance, thereby realizing automatic tilling depth adjustment and high working quality.
Description
Technical field
The present invention relates to a kind of tractor electrichydraulic control suspension arrangement, be connected with farm machinery for tractor, be specially adapted to tractor and be connected with tiller.
Background technology
Tractor is as a kind of dynamic power machine, and its operation needs corresponding complete set of farm machines and tools to complete, and suspension arrangement is to realize the parts that tractor and farm machinery articulate, and controls lifting and the decline of farm machinery, and it articulates the good and bad direct operation quality that affects complete machine of performance.At present, big-and-middle-sized tiller is connected the main trifilar suspension that adopts with tractor, be made up of hydraulic system, operating mechanism, hitch three parts, completes tilling depth adjusting, the power position comprehensive adjustment of tiller, the adjusting of floating.Tradition trifilar suspension hitch upper connecting rod with drop-down between employing be rigidly connected or flexibly connect, vary within wide limits when lower link is with tractor, farm machinery dipping and heaving when employing is rigidly connected, cause tilth to differ, simultaneously by the greater impact force reaction being caused by fluctuating in upper connecting rod, and then be passed to hydraulic jack, very easily make upper and lower pull bar distortion in this operating mode for a long time, destroy hydraulic jack, as upper connecting rod and drop-down between adopt chain cable etc. to flexibly connect, farm machinery are larger with landform dipping and heaving amplitude, tilling depth is wayward, operation quality is poor, position regulates to adopt changes different connecting holes realization, can not realize continuous stepless and regulate, operation inconvenience, the hydraulic system that bikini connects adopts one-way cylinder, being mainly used in farm machinery promotes, facility decline and rely on self gravitation, tilth regulates by operating personnel's micro-judgment or repeatedly examination is cultivated definite, in operation process, one-way cylinder is in self-locking state, be that tilling depth is adjusted to certain depth and substantially no longer automatically adjusts, but in tractor when work, is sagging inconsistent field, and field out-of-flatness, soil structure and consolidation differ everywhere, tilth amplitude of variation is larger, facility to the profiling ability on surface, field a little less than, cause tilling depth vary within wide limits, complete machine automaticity is low, facility transaction capabilities, efficiency and economy are not good.Therefore, need to develop especially that tilling depth before a kind of farming can numeral be set, in cultivating procedure tilling depth control in real time, the suspension arrangement higher to the profiling performance in field, realize tilling depth auto-control, stablize tilling depth, raising operation quality.
Summary of the invention
The object of the invention is in order to overcome existing suspension arrangement profiling ability, automaticity low and affect the shortcomings such as operation quality, provide a kind of and can accurately set tilling depth, monitor tilling depth in real time, rolling topography, the inconsistent field of consolidation are there is to the electrichydraulic control suspension arrangement of higher profiling ability, realize tilling depth and automatically regulated in real time, improved operation quality.
The technical scheme that technical solution problem of the present invention is taked is:
Electrichydraulic control suspension arrangement comprises frame, hangs assembly, controller, tiller:
Hang assembly and comprise angular transducer, upper left pull bar, sonic sensor, hydraulic cylinder, spring-damper, slide fastener, position adjusting rod, lower-left pull bar, reflector plate, upper right pull bar, bottom right pull bar, bearing block, power transmission shaft;
Lower-left pull bar front end and frame left rear side chain connection, lower-left back end of tie rod and tiller chain connection; Bottom right pull bar front end and frame right lateral side chain connection, bottom right back end of tie rod and tiller chain connection;
Power transmission shaft is fixed in frame by bearing block, one end of upper left pull bar, one end of upper right pull bar two ends of fixed conveyor axle respectively; The fluid cylinder of hydraulic cylinder and frame chain connection, the piston rod of hydraulic cylinder and upper left pull bar middle part chain connection;
Between upper left pull bar, lower-left pull bar, be provided with spring-damper, slide fastener, the other end of upper left pull bar is connected with slide fastener, the slide fastener other end is connected with lower-left pull bar middle part, spring-damper one end and upper left pull bar middle part chain connection, the spring-damper other end and lower-left pull bar middle part chain connection;
Between upper right pull bar, bottom right pull bar, be also provided with spring-damper, slide fastener, the other end of upper right pull bar is connected with slide fastener, the slide fastener other end is connected with bottom right pull bar middle part, spring-damper one end and upper right pull bar middle part chain connection, the spring-damper other end and bottom right pull bar middle part chain connection;
Adjusting rod one end, position and frame 1 chain connection, the position adjusting rod other end is connected with tiller; On the front draw ring of the fixing adjusting rod in place of sonic sensor, one end that the Rome nut of the fixing adjusting rod in place of reflector plate is connected with front draw ring; Angular transducer is fixed in frame and with left lower link joint place and contacts; Whole device is by controller control.
Described spring-damper comprises spring, shock absorber, and spring is placed on shock absorber, and one end of spring is fixed on the piston rod of shock absorber, and the other end of spring is fixed on the oil cylinder of shock absorber.
Described position adjusting rod comprises front draw ring, lever, Rome nut, rear draw ring, nut two ends, Rome are connected with front draw ring, rear draw ring threaded engagement respectively, the internal thread hand of spiral at nut two ends, Rome is contrary, the external screw thread hand of spiral of front draw ring, rear draw ring is contrary, and lever is arranged on the nut of Rome by hinge.
The gain effect that the present invention brings is, set tilth, Real-Time Monitoring tilling depth and utilize electro-hydraulic proportional valve to regulate in real time tilling depth by controller, between upper connecting rod and lower link, set spring-damper has cushioned the impulsive force of tiller to upper connecting rod, lower link simultaneously, keep the farm machinery and the farming field good contact that articulate, bionical ability is strong, and operation quality is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the front view of electrichydraulic control suspension arrangement;
Fig. 2 is longitudinal partial sectional view of electrichydraulic control suspension arrangement;
Fig. 3 is electrichydraulic control suspension arrangement top view;
Fig. 4 is the partial sectional view of electrichydraulic control suspension arrangement damping means;
Fig. 5 is the main cutaway view of electrichydraulic control suspension arrangement upper connecting rod;
Fig. 6 is the control chart of electrichydraulic control suspension arrangement;
In figure: frame 1, angular transducer 2, electro-hydraulic proportional valve 3, hydraulic pump 4, handle 5, controller 6, upper left pull bar 7, sonic sensor 8, hydraulic cylinder 9, spring-damper 10, slide fastener 11, position adjusting rod 12, lower-left pull bar 13, tiller 14, reflector plate 15, upper right pull bar 16, bottom right pull bar 17, bearing block 18, power transmission shaft 19, front draw ring 20, lever 21, Rome nut 22, rear draw ring 23, spring 24, shock absorber 25.
Embodiment
Below in conjunction with accompanying drawing and example, the invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, electrichydraulic control suspension arrangement comprises frame 1, hangs assembly, controller 6, tiller 14:
Hang assembly and comprise angular transducer 2, upper left pull bar 7, sonic sensor 8, hydraulic cylinder 9, spring-damper 10, slide fastener 11, position adjusting rod 12, lower-left pull bar 13, reflector plate 15, upper right pull bar 16, bottom right pull bar 17, bearing block 18, power transmission shaft 19;
Lower-left pull bar 13 front ends and frame 1 left rear side chain connection, lower-left pull bar 13 rear ends and tiller 14 chain connections; Bottom right pull bar 17 front ends and frame 1 right lateral side chain connection, bottom right pull bar 17 rear ends and tiller 14 chain connections;
Be provided with spring-damper 10, slide fastener 11 at upper left pull bar 7,13, lower-left pull bar, the other end of upper left pull bar 7 is connected with slide fastener 11, slide fastener 11 other ends are connected with lower-left pull bar 13 middle parts, spring-damper 10 one end and upper left pull bar 7 middle part chain connections, spring-damper 10 other ends and lower-left pull bar 13 middle part chain connections;
Also be provided with spring-damper 10, slide fastener 11 at upper right pull bar 16,17, bottom right pull bar, the other end of upper right pull bar 16 is connected with slide fastener 11, slide fastener 11 other ends are connected with bottom right pull bar 17 middle parts, spring-damper 10 one end and upper right pull bar 16 middle part chain connections, spring-damper 10 other ends and bottom right pull bar 17 middle part chain connections;
Adjusting rod 12 one end, position and frame 1 chain connection, position adjusting rod 12 other ends are connected with tiller 14; On the front draw ring 20 of sonic sensor 8 fixing adjusting rods 12 in place, one end that the Rome nut 22 of reflector plate 15 fixing adjusting rods 12 in place is connected with front draw ring 20; Angular transducer 2 is fixed in frame 1 and with lower-left pull bar 13 hinge places and contacts; Whole device is controlled by controller 6.
Described spring-damper 10 comprises spring 24, shock absorber 25, and spring 24 is placed on shock absorber 25, and one end of spring 24 is fixed on the piston rod of shock absorber 25, and the other end of spring 24 is fixed on the oil cylinder of shock absorber 25.
Comprise front draw ring 20, lever 21, Rome nut 22, rear draw ring 23 in described position adjusting rod 12, nut 22 two ends in Rome are connected with front draw ring 20, rear draw ring 23 threaded engagement respectively, the internal thread hand of spiral at Rome nut 22 two ends is contrary, the external screw thread hand of spiral of front draw ring 20, rear draw ring 23 is contrary, and lever 21 is arranged on Rome nut 22 by hinge.
Controller 6 has PLC Programmable Logic Controller, relay, the tilth of setting by controller 6, in cultivating procedure, the signals such as the Force location of controller 6 receiving angle sensors 2, sonic sensor 8, electro-hydraulic proportional valve 3, and by controlling electro-hydraulic proportional valve 3 and then controlling hydraulic cylinder 9, realize tilling depth and regulate in real time thereby control whole device.
Electrichydraulic control suspension arrangement can articulate rotovator, also can articulate the farm machinery such as plough, sower.
The course of work of the present invention: after tractor machine starts, hydraulic pump 4 is just exported the hydraulic oil of certain pressure, at the beginning of farming, set tilth by controller 6 inputs, controller 6 is controlled electro-hydraulic proportional valve 3 declines hydraulic cylinder 9, the angular signal of the lower-left pull bar 13 transmitting with Time Controller 6 receiving angle sensors 2, the length of the position adjusting rod that sonic sensor 8 transmits, the Force location signal of electro-hydraulic proportional valve 3, calculate current tilling depth and set value relatively by controlling software according to above-mentioned signal controller 6, and control electro-hydraulic proportional valve 3 and change the flow that enters hydraulic cylinder 9 and the direction of hydraulic oil, control hydraulic cylinder 9 flexible, hydraulic cylinder 9 by transmission of power to upper left pull bar 7, upper left pull bar 7 is by spring-damper 10, slide fastener 11 promotes or the lower-left pull bar 13 that declines, its angular signal when the pull bar 13 of lower-left in adjustment process, the Force location signal of electro-hydraulic proportional valve 3 is passed to again controller 6, until the difference of tilling depth calculated value and setting value is within the scope of departure, meanwhile, upper left pull bar 7 rotates by the synchronous upper right pull bar 16 that drives of power transmission shaft 19, thereby drives bottom right pull bar 17 to synchronize rotation with lower-left pull bar 13 by spring-damper 10, slide fastener 11.In cultivating procedure, tiller 14 drives lower-left pull bar 13 during with hypsography, bottom right pull bar 17 rotates, between upper left pull bar 7 and lower-left pull bar 13, between upper right pull bar 16 and bottom right pull bar 17, spring-damper 10 is done trace contraction or extends, make lower-left pull bar 13, bottom right pull bar 17 rotates a little, both overcome between upper connecting rod and lower link and be rigidly connected to rod member impact failure, flexibly connect the shortcomings such as 14 width of tiller are larger, while lower-left pull bar 13 a little rotational angle transfers to controller 6 by angle value sensor 2, controller 6 regulates tilth by said process, the Real-Time Monitoring of farming and control are automatically realized.
Claims (2)
1. an electrichydraulic control suspension arrangement, is characterized in that comprising frame (1), hangs assembly, controller (6), tiller (14); Hang assembly and comprise angular transducer (2), upper left pull bar (7), sonic sensor (8), hydraulic cylinder (9), spring-damper (10), slide fastener (11), position adjusting rod (12), lower-left pull bar (13), reflector plate (15), upper right pull bar (16), bottom right pull bar (17), bearing block (18), power transmission shaft (19);
Lower-left pull bar (13) front end and frame (1) left rear side chain connection, lower-left pull bar (13) rear end and tiller (14) chain connection; Bottom right pull bar (17) front end and frame (1) right lateral side chain connection, bottom right pull bar (17) rear end and tiller (14) chain connection;
It is upper that power transmission shaft (19) is fixed on frame (1) by bearing block (18), one end of upper left pull bar (7), one end of upper right pull bar (16) two ends of fixed conveyor axle (19) respectively; The fluid cylinder of hydraulic cylinder (9) and frame (1) chain connection, the piston rod of hydraulic cylinder (9) and upper left pull bar (7) middle part chain connection;
Between upper left pull bar (7), lower-left pull bar (13), be provided with spring-damper (10), slide fastener (11), the other end of upper left pull bar (7) is connected with slide fastener (11), slide fastener (11) other end is connected with lower-left pull bar (13) middle part, spring-damper (10) one end and upper left pull bar (7) middle part chain connection, spring-damper (10) other end and lower-left pull bar (13) middle part chain connection;
Between upper right pull bar (16), bottom right pull bar (17), be also provided with spring-damper (10), slide fastener (11), the other end of upper right pull bar (16) is connected with slide fastener (11), slide fastener (11) other end is connected with bottom right pull bar (17) middle part, spring-damper (10) one end and upper right pull bar (16) middle part chain connection, spring-damper (10) other end and bottom right pull bar (17) middle part chain connection;
Adjusting rod (12) one end, position and frame (1) chain connection, position adjusting rod (12) other end is connected with tiller (14); The front draw ring (20) of the fixing adjusting rod in place (12) of sonic sensor (8) is upper, one end that the Rome nut (22) of the fixing adjusting rod in place (12) of reflector plate (15) is connected with front draw ring (20);
Angular transducer (2) is fixed on frame (1) above and contacts with lower-left pull bar (13) hinge place; Whole device is controlled by controller (6);
Described position adjusting rod (12) comprises front draw ring (20), lever (21), Rome nut (22), rear draw ring (23), Rome nut (22) two ends are connected with front draw ring (20), rear draw ring (23) threaded engagement respectively, the internal thread hand of spiral at Rome nut (22) two ends is contrary, the external screw thread hand of spiral of front draw ring (20), rear draw ring (23) is contrary, and lever (21) is arranged on Rome nut (22) by hinge.
2. a kind of electrichydraulic control suspension arrangement according to claim 1, it is characterized in that described spring-damper (10) comprises spring (24), shock absorber (25), spring (24) is placed on shock absorber (25), one end of spring (24) is fixed on the piston rod of shock absorber (25), and the other end of spring (24) is fixed on the oil cylinder of shock absorber (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274893.XA CN102792797B (en) | 2012-08-03 | 2012-08-03 | Electro-hydraulic control suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274893.XA CN102792797B (en) | 2012-08-03 | 2012-08-03 | Electro-hydraulic control suspension device |
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| Publication Number | Publication Date |
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| CN102792797A CN102792797A (en) | 2012-11-28 |
| CN102792797B true CN102792797B (en) | 2014-07-09 |
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| CN201210274893.XA Expired - Fee Related CN102792797B (en) | 2012-08-03 | 2012-08-03 | Electro-hydraulic control suspension device |
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| CN107155454A (en) * | 2017-06-24 | 2017-09-15 | 颍上县田之都农业科技发展有限公司 | A kind of deep device of the limit of ditching machine |
| CN107211610A (en) * | 2017-06-29 | 2017-09-29 | 中国农业大学 | A kind of hilly and mountainous land tractor ground profiling hitch |
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| CN108450070B (en) * | 2018-05-22 | 2024-02-06 | 农业部南京农业机械化研究所 | Self-propelled agricultural implement's frame |
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| CN109644600B (en) * | 2019-01-15 | 2021-11-12 | 吉林大学 | Adjustable hanging device with resistance and operation depth stability monitoring function |
| CN110214532A (en) * | 2019-06-28 | 2019-09-10 | 丹阳荣嘉精密机械有限公司 | A kind of follow-up adjustment mechanism of potato picker excavating gear |
| CN113519238A (en) * | 2021-07-12 | 2021-10-22 | 安徽建筑大学 | Sowing depth detection device and detection method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1371543A1 (en) * | 1986-06-23 | 1988-02-07 | Грузинский Институт Субтропического Хозяйства | Mounted device for steep slope tractor |
| JP2007043992A (en) * | 2005-08-11 | 2007-02-22 | Mitsubishi Agricult Mach Co Ltd | Rotary tiller |
| CN201275993Y (en) * | 2008-09-27 | 2009-07-22 | 常州东风农机集团有限公司 | Rapid hanging mechanism of tractor hydraulic lift hitch |
| CN202340392U (en) * | 2011-10-28 | 2012-07-25 | 中国农业大学 | Hydraulic suspension device for inter-axially suspended seed sowing machine |
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2012
- 2012-08-03 CN CN201210274893.XA patent/CN102792797B/en not_active Expired - Fee Related
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| CN102792797A (en) | 2012-11-28 |
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Application publication date: 20121128 Assignee: SHENGZHOU KELING MACHINE Co.,Ltd. Assignor: Zhejiang University Contract record no.: 2015330000220 Denomination of invention: Electro-hydraulic control suspension device Granted publication date: 20140709 License type: Common License Record date: 20150806 |
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Application publication date: 20121128 Assignee: ZHEJIANG LIULIN AGRICULTURAL MACHINERY CO.,LTD. Assignor: Zhejiang University Contract record no.: 2015330000254 Denomination of invention: Electro-hydraulic control suspension device Granted publication date: 20140709 License type: Common License Record date: 20151111 |
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