CN110249733A - Full-automatic transplantation combine transplants unit Hoist Control Unit - Google Patents
Full-automatic transplantation combine transplants unit Hoist Control Unit Download PDFInfo
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- CN110249733A CN110249733A CN201910509544.3A CN201910509544A CN110249733A CN 110249733 A CN110249733 A CN 110249733A CN 201910509544 A CN201910509544 A CN 201910509544A CN 110249733 A CN110249733 A CN 110249733A
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- 238000002054 transplantation Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000006698 induction Effects 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 48
- 238000005491 wire drawing Methods 0.000 claims description 24
- 239000002828 fuel tank Substances 0.000 claims description 15
- 230000003028 elevating effect Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 45
- 238000010586 diagram Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
Abstract
The invention discloses a kind of full-automatic transplantation combines to transplant unit Hoist Control Unit, including lift cylinder and ground copying system, the lift cylinder is connect with hydraulic system, lift cylinder and the connecting line of hydraulic system are equipped with valve group, valve group is fixed on the mounting bracket, it is characterised in that: the ground copying system includes feeler mechanism and transmission mechanism；The feeler mechanism includes induction wheel, movable support and fixed bracket, and the transmission mechanism includes bracing wire, movable ear and La Er etc..A kind of full-automatic transplantation combine of the invention transplants unit Hoist Control Unit, it should implement active control based on feeling of passivity, compared to existing active control copying system, manufacture and use cost are low, easy to maintain, and working condition runs smoothly, and compared to existing passive copying system, it is preferred by structure, the vibration that breaks is transmitted on plant unit can be reduced, mechanical damage is avoided, while there is preferable profiling effect.
Description
Technical field
The present invention relates to agricultural machinery technological field, specially a kind of full-automatic transplantation combine plant unit lifting
Control equipment.
Background technique
In the course of work of combine, by the shaping of digging of preceding portion mechanism, the ground one of unit contact is transplanted
As it is more smooth but unexpected in order to prevent, avoid the earth's surface of protrusion from bringing collsion damage to planting mechanism；Or in order to adapt to
The ground of slope change keeps the depth of planting of nursery stock consistent, and ground copying system can be configured in existing combine, makes to plant
The height of unit is planted with topography variation, to ensure the safe operation of working rig and improve operation quality.
The copying system of existing agricultural machinery includes passive adjustment (feeling of passivity answer, copying control) and active accommodation (active
Induction, active control), the combine for implementing passively to adjust is equipped with the landform sensing device connecting with Working mechanism mostly,
Landform sensing device supports Working mechanism, makes Working mechanism that can generate height change, but sensing device and Working mechanism with landform
Between be usually be rigidly connected, can directly transmitting topography variation generate vibration, be easy to damage machinery, and copying accuracy is not high；
The combine for implementing active accommodation actively acquires terrain information generally by multiple sensors, and control system, which combines, to be passed
The feedback data of sensor analyzes landform, then controls driving device and carry out height adjustment to Working mechanism, but in farm work, open
Accurate device between emptying does not allow easy to maintain, the manufacture of this embodiment and maintenance cost height.
Summary of the invention
Aiming at the problems existing in the prior art, technical purpose of the invention is to provide a kind of novel full-automatic transplantation connection
It closes working rig and transplants unit Hoist Control Unit, active control should be implemented based on feeling of passivity, operational safety is stablized, it is not easy to damage
Machinery, and manufacture and use cost are low.
The technical solution of the present invention is as follows:
A kind of full-automatic transplantation combine plant unit Hoist Control Unit, including lift cylinder and ground copying system,
The lift cylinder is connect with hydraulic system, and the connecting line of lift cylinder and hydraulic system is equipped with valve group, and valve group is fixed on
In mounting bracket, it is characterised in that:
The ground copying system includes feeler mechanism and transmission mechanism；
The feeler mechanism includes induction wheel, movable support and fixed bracket:
The induction wheel is in cylinder shape, is laterally arranged, and with ground face contact when work, both ends are mounted on movable branch by first rotating shaft
The bottom of frame；
The movable support is facing forward with top, and the mode of lower part backwards is obliquely installed, and the middle part of movable support passes through the second shaft
It is hinged with support bracket fastened bottom；
The fixed bracket is located at the rear of movable support, and angle, support bracket fastened top are formed between movable support top
It is fixed on the bracket girder of plant unit, fixed bracket is equipped with a fixed ear；
In above-mentioned feeler mechanism, the first rotating shaft is parallel with the second shaft, and front refers to the direction of travel of combine；
The transmission mechanism includes bracing wire, movable ear and La Er:
The valve group is equipped with shell, spool and push rod, the operation of lift cylinder described in the action control that valve group passes through spool, push rod
One end connect with the intracorporal spool of shell, the other end stretch out shell, and push rod stretch out shell part the first reset bullet is installed
Spring；
It is described draw ear be arranged in valve group push rod stretching side, it is hinged by third shaft and mounting bracket, third shaft with push away
Bar is perpendicular；One end of ear is drawn to connect by second back-moving spring with mounting bracket, the other end is connected by bracing wire and movable support
It connects, constitutes using third shaft as the lever construction of fulcrum, the second back-moving spring is parallel with push rod, the connection of La Er and bracing wire
Arc-shaped bump contact is equipped between point and third shaft, the position of alignment push rod end is arranged in the bump contact；
The bracing wire includes casing and the wire drawing positioned inside pipe casing, and the length of the wire drawing is greater than the length of casing, and can be
Cover in-pipe；One end of casing is fixedly connected with movable ear, and the other end is fixedly connected with fixed ear；It wears one end of the wire drawing
It crosses after movable ear and is connect with ear is drawn, the other end is connect after passing through fixed ear with the top of movable support, in fixed ear, movable ear
The through-hole passed through equipped with appearance wire drawing；
When there is protrusion on ground, induction wheel is lifted up, movable support rotation, makes that ear is drawn to generate linkage by wire drawing, first is multiple
Position spring is compressed, and second back-moving spring is stretched, and ear is drawn to squeeze the push rod of valve group by bump contact, and band movable valve plug is mobile,
Conducting driving lift cylinder executes the oil circuit of enhancing action；After induction wheel crosses protrusion, under the action of first back-moving spring, valve
Core resets, and moves the oil circuit closing that lift cylinder executes enhancing action；Under the action of second back-moving spring, ear is drawn to reset.
On the basis of above scheme, further improvement or preferred scheme further include:
The wire drawing is connect by buffer spring with movable support.
The activity ear is mounted in mounting bracket by long kidney-shaped hole, by adjusting movable ear consolidating in long kidney-shaped hole
Positioning is set, and the relaxation state of wire drawing is changed, to adjust the induction sensitivity of control mechanism.
The fixed ear, movable ear are equipped with the gap being connected to the through-hole, and wire drawing is passed through by gap receiving through-hole.
The activity ear includes positioning region and limiting section, and the positioning region is T-shaped, by flange and is fixed on flange one
The screw rod of side is constituted；The limiting section is fixed on the other side of flange, is equipped with the through-hole and gap, the axis of the through-hole
With the axis perpendicular of screw rod；When installation activity ear, screw rod is inserted into long kidney-shaped hole, until flange is against in mounting bracket
On surface, using nut from long kidney-shaped hole other side tie down screw.
The top of the movable support be equipped with multiple location holes at different heights, the location hole with it is adjustable
Bar is used cooperatively, and one end of buffer spring is articulated on the adjustable rod, by the way that adjustable rod is mounted on different height position
In location hole, the profiling height of plant unit is adjusted.
The induction wheel is glue coating wheel, is made of intermediate axle sleeve and external rubber tire, and the external rubber tire is hollow rubber
Wheel.
The lift cylinder is single-action hydraulic cylinder, and rod chamber side is equipped with oil transportation mouth, rod chamber oil inlet, then piston rod
Mobile, driving transplanting unit rises.
On the basis of lift cylinder is single-action hydraulic cylinder, valve group uses five position and four-way reversing valves, is equipped with A, B, P, T tetra-
A hydraulic fluid port and five valve positions, five valve positions are respectively 1,2, middle position, 3,4, when spool is moved to 1, A
It is connected to P hydraulic fluid port, B is connected to T hydraulic fluid port by throttling passage；When spool is moved to 2, A and P hydraulic fluid port are connected by throttling passage
Logical, B is connected to T hydraulic fluid port；When spool is moved to middle position, A hydraulic fluid port is blocked with B hydraulic fluid port, and P is connected to T hydraulic fluid port；Spool is moved to
At 3, A is connected to B hydraulic fluid port by throttling passage, and P is connected to T hydraulic fluid port；When spool is moved to 4, A is connected to B hydraulic fluid port, P and T
Hydraulic fluid port is connected to by throttling passage；
The hydraulic system includes fuel tank, overflow valve and unloading valve, and the P hydraulic fluid port of valve group is connected by the first pipeline road and fuel tank
It connects, oil pump is mounted in first pipeline road；A hydraulic fluid port passes through the oil transportation mouth of the second pipeline road and lift cylinder rod chamber
Connection；B hydraulic fluid port is connect by the first oil return line with fuel tank；T hydraulic fluid port is connected to the first oil return line by the second oil return line
On, if its tie point is S；Overflow valve and unloading valve are incorporated into the circuit of hydraulic system by the first branch line, and described the
One branch line be arranged between tie point S and the second oil return line port, the both ends of first branch line with first time
The tie point of oil pipe line is respectively M and N, and in the first oil return line, tie point M is in the upstream of tie point N, first branched pipe
Road and the first pipeline road have a crosspoint O, and overflow valve is mounted in the pipeline between tie point M and crosspoint O, and unloading valve is then
It is mounted in the pipeline between crosspoint O and the connection N of its other side；The input terminal of unloading valve passes through second branched pipe road simultaneously
It is connect with the second pipeline road.
Further, the full-automatic transplantation combine transplants unit Hoist Control Unit, is equipped with electric cylinders and lifting
Control handle.The front of valve group is arranged in the electric cylinders, and the output shaft of electric cylinders and the push rod of valve group are parallel, the end of electric cylinders output shaft
Portion is located at the side for drawing ear, is also directed at the front end face of push rod, and electric cylinders movement can push valve group push rod, band movable valve plug switching valve position；
The signal input part of the electric cylinders is connect with control system, and the signal input part of control system is connect with elevating control handle, is led to
The stroke for crossing operation elevating control handle control electric cylinders output shaft, switches the spool position of valve group.
The utility model has the advantages that
A kind of full-automatic transplantation combine of the invention transplants unit Hoist Control Unit, should be implemented actively based on feeling of passivity
Control, compared to existing active control copying system, manufacture and use cost are low, easy to maintain, and working condition is run
Steadily, preferred by structure and compared to existing passive copying system, breaks can be reduced and be transmitted on plant unit
Vibration, avoid mechanical damage, while there is preferable profiling effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of copying system of the present invention；
Fig. 2 is the cross-sectional view of induction wheel；
Fig. 3 is the structural schematic diagram of movable ear；
Fig. 4 is the structural schematic diagram of movable support；
Fig. 5 is support bracket fastened structural schematic diagram；
Fig. 6 is the structural schematic diagram of control mechanism；
Fig. 7 is the structural schematic diagram for transplanting unit and feeler mechanism；
Fig. 8 is the structural schematic diagram of combine；
Fig. 9 is the schematic diagram of spool valve position；
Figure 10 is the pipeline structure schematic diagram of hydraulic system.
Specific embodiment
In order to illustrate technical solution of the present invention and working principle, the present invention is done with specific embodiment with reference to the accompanying drawing
Detailed introduction.
Transplanting combine as shown in Figure 8, including tractor, rack and rack-mounted hydraulic system,
The component parts such as seedling frame, rotary tillage ditching system, replanting system, suppression of soil system.The rack by three-point hitch with
Tractor connection, is driven by tractor and is drawn.The replanting system is equipped with more than one transplanting unit, and each transplanting unit is logical
A secondary individually parallel link mechanism is crossed to be flexibly connected with rack, meanwhile, replanting system is furnished with one to each transplanting unit
The lift cylinder 12 of its lifting of a independent control.
The lifting of the transplanting unit is divided into artificial control and automatically controls, and artificial control, which refers to, passes through station by personnel
It sends and instructs to control system, the lift cylinder 12 is driven to act, control transplanting unit rises or falls；Automatic control refers to
The lift cylinder movement is driven by ground copying system, goes up and down transplanting unit with landform.
The lift cylinder 12 is single-acting lift cylinder, be arranged the side cavity (hereinafter referred to as rod chamber) of piston rod into
Oil, piston rod are connect with transplanting unit.The oil transportation mouth of lift cylinder 12 is connect with hydraulic system, and hydraulic system is lift cylinder 12
The connecting line of the oil pressure of its movement of offer driving, lift cylinder 12 and hydraulic system is equipped with valve group 910, the installation of valve group 910
In mounting bracket 909, the mounting bracket 909 is fixedly connected with the mounting platform that rack provides.
The valve group 910 includes shell, spool and push rod, and the push rod is longitudinally disposed, its rear end and the intracorporal valve of shell
Valve body is stretched out in core connection, front end.The part that push rod stretches out valve body is equipped with first back-moving spring, and first back-moving spring is covered in push rod
On, its rear end is against on the shell of valve group 910, and front end is against on the flange of push rod end, or fixes in other ways with push rod
Connection makes the first back-moving spring of squeezed state when resetting, can push push rod forward.An implementation as shown in Figure 9, Figure 10
Example, valve group 910 are five position and four-way reversing valves, are equipped with tetra- hydraulic fluid ports of A, B, P, T, spool mobile handoff on five valve positions can shape
At five kinds of accesses.Five valve positions are respectively 1,2, middle position, 3,4, when spool is moved to 1, A and P oil
The normal connection of mouth, B are connected to T hydraulic fluid port by throttling passage (channel equipped with throttle valve)；When spool is moved to 2, A and P oil
Mouth is connected to by throttling passage, and B is normally connected to T hydraulic fluid port；When spool is moved to middle position, A hydraulic fluid port is blocked with B hydraulic fluid port, P with
The connection of T hydraulic fluid port；When spool is moved to 3, A is connected to B hydraulic fluid port by throttling passage, and P is normally connected to T hydraulic fluid port；Spool is mobile
When to 4, A is normally connected to B hydraulic fluid port, and P is connected to T hydraulic fluid port by throttling passage.
The ground copying system, including feeler mechanism and transmission mechanism.
The feeler mechanism includes the components such as induction wheel 901, movable support 902 and fixed bracket 904.
The induction wheel 901 is glue coating wheel, is in cylinder shape, is made of intermediate axle sleeve 901.2 and external rubber tire 901.1, institute
Stating external rubber tire 901.1 is hollow rubber wheel.The laterally setting of induction wheel 901 is rolled on the ground with ground face contact when work
It is dynamic, incude the variation of landform.First rotating shaft is passed through from intermediate axle sleeve 901.2, and both ends are centrally positioned axle sleeve by bearing
In 901.2.
As shown in Fig. 1, Fig. 8, the movable support 902 is obliquely installed, and top is facing forward, and (front refers to that joint is made backwards for lower part
The direction of travel of industry machine, rear refer to the direction opposite with direction of travel).The lower part of movable support 902 is pitched equipped with idler wheel, the rolling
The bottom end of wheel fork two-arm is equipped with groove profile axis hole 902.1.When installation, idler wheel fork two-arm is stuck in the by the groove profile axis hole 902.1
One shaft stretches out the both ends of intermediate axle sleeve 901.2, is then fixed by nut check.The top of movable support 902 is equipped with and rolling
Consistent two locating rods of wheel fork extending direction, the locating rod is equipped with multiple location holes in different height position, fixed
The lower part of position bar is equipped with axis hole, and two positional lever structures are identical.The middle part of movable support 902 passes through the second shaft and fixed bracket
904 bottom is hinged, and the second shaft is parallel with first rotating shaft, and the second both ends of the shaft is mounted in the corresponding axis hole of two locating rods.
The fixed bracket 904 is located at the rear on movable support top, structure as shown in figure 5, include two support rods,
It is connected between two support rods by crossbeam, to strengthen connection structure.As shown in Figure 1, fixed bracket 914 is also obliquely installed,
Backwards, lower part forms angle towards between top rake, with 902 top of movable support on top.The top of fixed bracket 904 is fixed on
On the bracket girder for transplanting unit, the crossbeam of fixed bracket 904 is equipped with a fixed ear 903, and the fixed ear 903 is equipped with through-hole
And the gap being connected to the through-hole, wire drawing are passed through by gap receiving through-hole.
The transmission mechanism includes bracing wire 907, movable ear 908 and La Er 911, and the activity ear 908 and La Er 911 distinguish
It is mounted in the mounting bracket 909, the mounting bracket 909 is located at the oblique upper on front side of feeler mechanism.
The front for drawing ear 911 that valve group 910 is set, third shaft hinged by third shaft and mounting bracket 909
Laterally setting, it is vertical with valve group push rod.The top of ear 911 is drawn to connect by second back-moving spring 912 with mounting bracket 909, bottom
End is connect by bracing wire 907 with movable support 902, is constituted using third shaft as the lever construction of fulcrum.Described second resets bullet
Spring 912 is parallel with push rod, draws and is equipped with arc-shaped bump contact, institute between ear 911 and the tie point and third shaft of bracing wire 907
State the position that alignment push rod front end is arranged in bump contact.
The bracing wire 907 includes casing and the wire drawing positioned inside pipe casing, and the length of the wire drawing is greater than the length of casing,
And it can be in set in-pipe.One end of casing is fixedly connected with movable ear 908, and the other end is fixedly connected with fixed ear 903.It is described
One end of wire drawing is connect after passing through movable ear 908 with ear 911 is drawn, and the other end passes through one end of fixed ear 903 and buffer spring 905
Connection, the other end of buffer spring 905 are hung on adjustable rod 906, the adjustable rod 906 and the location hole on fixed bracket 904
It is used cooperatively.By the way that adjustable rod 906 to be mounted in the location hole of different height position, the inclination angle of movable support 902 is adjusted
The profiling height of plant unit can be changed in degree, i.e. plant unit is at a distance from ground.
The activity ear 908 is mounted in mounting bracket 909 by long kidney-shaped hole, as shown in Figure 1, the long kidney-shaped hole position
It is longitudinally disposed in the obliquely downward of 910 rear side of valve group, it is located at same level height with the bottom end of ear 911 is drawn.By adjusting movable ear
The 908 fixation position in long kidney-shaped hole can be changed the path of wire drawing, its relaxation state made to change, and draw ear to adjust
Induction sensitivity.
The activity ear 908 includes positioning region and limiting section.The positioning region is T-shaped, by flange and is fixed on flange
The screw rod of disk side is constituted, and the limiting section is fixed on the other side of flange, equipped with through-hole and the gap being connected to through-hole, is drawn
Silk is by by gap receiving through-hole.908 when installation activity ear, screw rod is inserted into long kidney-shaped hole, until flange is against
On surface in mounting bracket 909, the long kidney-shaped hole is through-hole, using nut from long kidney-shaped hole other side tie down screw.Limit
The longitudinal axis of position portion through-hole and the transverse axis of screw rod are perpendicular.
The hydraulic system includes fuel tank 1001, filter 1002, oil pump 1003, overflow valve 1004,1005 and of unloading valve
Throttle valve 1006.The P hydraulic fluid port of the valve group 910 is connect by the first pipeline road with fuel tank 1001, and oil pump 1003 is mounted on institute
It states in the first pipeline road, installation is by filter 1002 between 1003 entrance of oil pump and fuel tank 1001.A hydraulic fluid port passes through the second oil transportation
Pipeline is connect with the oil transportation mouth of 12 rod chamber of lift cylinder, and shut-off valve 1007 is equipped in the second oil inlet pipe.B hydraulic fluid port passes through the
One oil return line is connect with fuel tank 1001, and adjustable throttling 1006 is equipped in the first oil return line.T hydraulic fluid port passes through the second oil return
In piping connection to the first oil return line, if its tie point is S, adjustable throttling 1006 is located between tie point S and B hydraulic fluid port.
Overflow valve 1004 and unloading valve 1005 are incorporated in the circuit of hydraulic system by the first branch line, and first branch line is set
It sets between tie point S and the port of the second oil return line.The both ends of first branch line and the company of the first oil return line
Contact is respectively M and N, and on the first oil return line, tie point M is in the upstream of tie point N.First branch line and first
Pipeline road has an intersection crosspoint O(to form four-way structure), overflow valve 1004 is mounted between tie point M and crosspoint O
Pipeline in, unloading valve 1005 be then mounted on crosspoint O and connect N between pipeline in.Overflow valve 1004 and unloading valve 1005
Output end connect with fuel tank 1001, the input terminal of unloading valve 1005 passes through second branched pipe road simultaneously and the second pipeline road connects
It connects, the tie point of unloading valve 1005 and the second pipeline road is between shut-off valve 1007 and A hydraulic fluid port, the second branched pipe road
Throttle valve is optionally set.Pressure control of the overflow valve 1004 for pipeline where it.Unloading valve 1005 is for where it
The pressure of pipeline controls, and protection lift cylinder 12 and oil pump 1003, transplant unit encounter jump, bust the case where when,
Lift cylinder 12 and oil pump 1003 is avoided to bear excessive pressure.
Working principle:
Working rig is when on level land, when elevating control handle 13 is located at middle position in other words, the of ground copying system transmission mechanism
One reset spring is state half-compressed (being compressed, but uncompressed to limiting condition).
(1) artificial control:
The front of the valve group 910 is equipped with electric cylinders 11, and the output shaft of electric cylinders 11 is parallel with the push rod of valve group 910, electric cylinders output shaft
End be located at draw ear 911 side, also be aligned push rod front end face, electric cylinders 11, which act, can equally push pushing away for valve group 910
Bar drives valve core movement.
The signal input part of the electric cylinders 11 is connect with control system, the corresponding signal input part of control system and station
On elevating control handle 13 connect, the elevating control handle 13 be equipped with multiple gears.
When a line nursery stock transplanting terminates or equipment is needed to lift for midway, personnel stir elevating control handle 13,
Its gear is set to be in left side lifting position, the command signal that elevating control handle 13 is sent is after control system is handled, output
Corresponding control signal controls 11 output shaft of electric cylinders and stretches out, the spool of valve group 910 is pushed by push rod to electric cylinders 11, make its to
Moving distance L afterwards, first back-moving spring is further compressed at this time, and spool is moved into 1, and oil pump 1003 is from fuel tank 1001
The oil liquid of middle extraction directly feeds the rod chamber of lift cylinder 12, and piston rod is pushed to move forward, and piston rod passes through hoisting mechanism
Plant unit is driven to rise.
When transplanting unit lifting arrival needs position, stirs elevating control handle 13 and be in middle position pressure maintaining position, pass through
Control system controls electric cylinders 11 and retracts L/2 distance, and spool is displaced outwardly distance under the elastic force effect of first back-moving spring at this time
L/2, spool come middle position, and the hydraulic oil that oil pump 1003 exports is returned directly to by the channel PT and corresponding oil return line of spool
In fuel tank 1001, and the oil liquid come into 12 rod chamber of lift cylinder is then sealed in rod chamber, and piston rod is not at this time
Can stretch out can not retract in locking state, at this time transplant unit and be in promotion stationary state.
When needs plant, which needs that unit will be transplanted, to be put down, stirs elevating control handle 13 and be in right side down position, rise
After the operational order of drop control handle 13 is handled by control system, control signal is exported to electric cylinders 12, electric cylinders 12 is controlled and continues
L/2 distance is retracted, spool continues to be displaced outwardly distance L/2 under the action of first back-moving spring at this time, reaches 4, oil pump
The direct oil return box 1001 of hydraulic oil of 1003 suctions, and the oil liquid come into 12 rod chamber of lift cylinder can be straight by circuit
It takes back in fuel tank 1001, plant unit pulls piston rod protruding by gravity, plant unit decline.
(2) it automatically controls:
When transplanting unit decline, induction wheel 901 contacts ground first, and movable support 905 rotates, and passes through the wire drawing in bracing wire 907
It drives and ear 911 is drawn to rotate, make the bump contact pressure-ram for drawing ear 911, spool is forced to move to valve group rear.It is high to transplant unit
Degree is in normal position, i.e., when the height of induction wheel 901 is preset level land height, spool should move to middle position at this time, is promoted
Oil cylinder 12 is in the stable state of pressure maintaining.
When there is protrusion on ground, induction wheel 901 is lifted up, and movable support 902 rotates, and makes that ear 911 is drawn to produce by wire drawing
Raw linkage, draws ear 911 to rotate centered on third shaft, the first back-moving spring on push rod is compressed, second back-moving spring 912
It is stretched, the bump contact of ear 911 is drawn to move backward, squeeze the push rod of valve group 910, drive spool mobile by push rod, spool
2 are moved to, the oil liquid that oil pump 1003 is aspirated from fuel tank 1001 directly feeds the rod chamber of lift cylinder 12, pushes piston rod
It being moved to the left, the hoisting mechanism of piston rod connection at this time drives plant unit lifting, and induction wheel 901 moves downward in lifting process,
Movable support 902 invert, wire drawing is relaxed, at this time under the action of second back-moving spring 912, draw ear 911 bump contact to
Preceding movement, under the thrusting action of first back-moving spring, spool is restored to middle position, completes a profiling lifting process at this time.Such as
Fruit ground protrusion is excessively high, and spool can reach 1, and 1 does not have throttle valve so as to fast driving relative to 2 on oil inlet oil circuit
Lift cylinder 12 upgrades plant unit.
Induction wheel 901 moves downward after crossing protrusion, and under the action of first back-moving spring, spool is moved to 3, and 3
For lower demotion, plant unit moves downward arrival normal operation position back valve core and is restored to middle position at this time.The principle when there is pit
Similar, spool is moved to 3 at this time, for lower demotion.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, the present invention
Claimed range is delineated by the appended claims, the specification and equivalents thereof from the appended claims.
Claims (10)
1. a kind of full-automatic transplantation combine transplants unit Hoist Control Unit, including lift cylinder (12) and ground profiling
System, the lift cylinder (12) connect with hydraulic system, and the connecting line of lift cylinder (12) and hydraulic system is equipped with valve
Group (910), valve group (910) are fixed on mounting bracket (909), it is characterised in that:
The ground copying system includes feeler mechanism and transmission mechanism；
The feeler mechanism includes induction wheel (901), movable support (902) and fixes bracket (904):
The induction wheel (901) is in cylinder shape, is laterally arranged, and with ground face contact when work, both ends are mounted on by first rotating shaft
The bottom of movable support (902)；
The movable support (902) is facing forward with top, and the mode of lower part backwards is obliquely installed, and the middle part of movable support (902) is logical
It crosses the second shaft and the bottom of fixed bracket (904) is hinged；
The fixed bracket (904) is located at the rear of movable support, forms angle between movable support (902) top, fixed
The top of bracket (904) is fixed on the bracket girder of plant unit, and fixed bracket (904) are equipped with a fixed ear (903)；
In above-mentioned feeler mechanism, the first rotating shaft is parallel with the second shaft, and front refers to the direction of travel of combine；
The transmission mechanism includes bracing wire (907), activity ear (908) He Laer (911):
The valve group (910) is equipped with shell, spool and push rod, lift cylinder described in the action control that valve group (910) passes through spool
(12) one end of operation, push rod is connect with the intracorporal spool of shell, and the other end stretches out shell, and push rod stretches out the part peace of shell
Equipped with first back-moving spring；
Drawing ear (911) setting is cut with scissors in the side that valve group (910) push rod stretches out by third shaft and mounting bracket (909)
It connects, third shaft and push rod are perpendicular；The one end of ear (911) is drawn to connect by second back-moving spring (12) and mounting bracket (909)
It connects, the other end is connect by bracing wire (907) with movable support (902), is constituted using third shaft as the lever construction of fulcrum, described
Second back-moving spring (12) is parallel with push rod, draws and is equipped with circular arc between ear (911) and the tie point and third shaft of bracing wire (907)
The position of alignment push rod end is arranged in the bump contact of shape, the bump contact；
The bracing wire (907) includes casing and the wire drawing positioned inside pipe casing, and the length of the wire drawing is greater than the length of casing, and
It can be in set in-pipe；One end of casing is fixedly connected with movable ear (908), and the other end is fixedly connected with fixed ear (903)；Institute
The one end for stating wire drawing passes through movable ear (908) and connect afterwards with ear (911) are drawn, and the other end passes through fixed ear (903) and props up afterwards with activity
The top of frame (902) connects, and is equipped in fixed ear (903), movable ear (908) and holds the through-hole that wire drawing passes through；
When there is protrusion on ground, induction wheel (901) is lifted up, and movable support (902) rotation makes to draw ear (911) by wire drawing
Linkage is generated, first back-moving spring is compressed, and second back-moving spring (912) is stretched, and ear (911) is drawn to squeeze by bump contact
The push rod of valve group (910), band movable valve plug is mobile, and conducting driving lift cylinder (12) executes the oil circuit of enhancing action；Induction wheel
(901) after crossing protrusion, under the action of first back-moving spring, valve core reset moves lift cylinder (12) and executes enhancing action
Oil circuit is closed；Under the action of second back-moving spring (12), ear (911) is drawn to reset.
2. a kind of full-automatic transplantation combine according to claim 1 transplants unit Hoist Control Unit, feature
It is, the wire drawing is connect by buffer spring (905) with movable support (902).
3. a kind of full-automatic transplantation combine according to claim 1 transplants unit Hoist Control Unit, feature
It is, the activity ear (908) is mounted on mounting bracket (909) by long kidney-shaped hole, by adjusting movable ear (908) in waist
Fixation position in shape long hole changes the relaxation state of wire drawing, to adjust the induction sensitivity of control mechanism.
4. a kind of full-automatic transplantation combine according to claim 3 transplants unit Hoist Control Unit, feature
It is, the fixed ear (903), movable ear (908) are equipped with the gap being connected to the through-hole, and wire drawing is passed through to be placed in by gap
In through-hole.
5. a kind of full-automatic transplantation combine according to claim 4 transplants unit Hoist Control Unit, feature
It is:
The activity ear (908) includes positioning region and limiting section, and the positioning region is T-shaped, by flange and is fixed on flange
The screw rod of side is constituted；The limiting section is fixed on the other side of flange, is equipped with the through-hole and gap, the axis of the through-hole
The axis perpendicular of line and screw rod；When installation activity ear (908), screw rod is inserted into long kidney-shaped hole, until flange is against installation
On surface on bracket (909), using nut from long kidney-shaped hole other side tie down screw.
6. a kind of full-automatic transplantation combine according to claim 2 transplants unit Hoist Control Unit, feature
Be, the top of the movable support (902) is equipped with multiple location holes at different heights, the location hole with can
Bar (906) are adjusted to be used cooperatively, one end of buffer spring (905) is articulated on the adjustable rod (906), by by adjustable rod
(906) it is mounted in the location hole of different height position, adjusts the profiling height of plant unit.
7. a kind of full-automatic transplantation combine according to claim 1 transplants unit Hoist Control Unit, feature
It is, the induction wheel (901) is glue coating wheel, is made of intermediate axle sleeve (901.2) and external rubber tire (901.1), the outside
Rubber tire (901.1) is hollow rubber wheel.
8. transplanting combine plant unit elevating control is set one kind described in any one of -7 automatically according to claim 1
It is standby, it is characterised in that:
The lift cylinder (12) is single-action hydraulic cylinder, and rod chamber side is equipped with oil transportation mouth, rod chamber oil inlet, then piston rod
Mobile, driving transplanting unit rises.
9. a kind of automatic transplanting combine according to claim 8 transplants unit Hoist Control Unit, feature exists
In:
Valve group (910) is five position and four-way reversing valves, is equipped with tetra- hydraulic fluid ports of A, B, P, T and five valve positions, five valve positions point
Not Wei 1,2, middle position, 3,4, when spool is moved to 1, A is connected to P hydraulic fluid port, and B and T hydraulic fluid port pass through throttling passage
Connection；When spool is moved to 2, A is connected to P hydraulic fluid port by throttling passage, and B is connected to T hydraulic fluid port；When spool is moved to middle position, A
Hydraulic fluid port is blocked with B hydraulic fluid port, and P is connected to T hydraulic fluid port；When spool is moved to 3, A is connected to B hydraulic fluid port by throttling passage, P with
The connection of T hydraulic fluid port；When spool is moved to 4, A is connected to B hydraulic fluid port, and P is connected to T hydraulic fluid port by throttling passage；
The hydraulic system includes that fuel tank (1001), overflow valve (1004) and unloading valve (1005), the P hydraulic fluid port of valve group (910) are logical
It crosses the first pipeline road to connect with fuel tank (1001), oil pump (1003) is mounted in first pipeline road；A hydraulic fluid port passes through the
Two pipeline roads are connect with the oil transportation mouth of hydraulic cylinder (12) rod chamber；B hydraulic fluid port is connected by the first oil return line and fuel tank (1001)
It connects；T hydraulic fluid port is connected on the first oil return line by the second oil return line, if its tie point is S；Overflow valve (1004) and off-load
Valve (1005) is incorporated into the circuit of hydraulic system by the first branch line, and first branch line is arranged in tie point S
Between the second oil return line port, the both ends of first branch line and the tie point of the first oil return line be respectively M with
N, in the first oil return line, tie point M has a phase with the first pipeline road in the upstream of tie point N, first branch line
Intersection point O, overflow valve (1004) are mounted in the pipeline between tie point M and crosspoint O, and unloading valve (1005) is then mounted on intersection
In pipeline between point O and the connection N of its other side；The input terminal of unloading valve (1005) passes through second branched pipe Lu Yu simultaneously
The connection of two pipeline roads.
10. a kind of automatic transplanting combine according to claim 9 transplants unit Hoist Control Unit, feature exists
In equipped with electric cylinders (11) and elevating control handle (13)；
The electric cylinders (11) are arranged in the front of valve group (910), and electric cylinders (11) output shaft is parallel with the push rod of valve group (910), electricity
The end of cylinder output shaft is located at the side for drawing ear (911), is also directed at the front end face of push rod, and electric cylinders movement can push valve group push rod,
Band movable valve plug switching valve position；
The signal input part of the electric cylinders (11) is connect with control system, the signal input part and elevating control handle of control system
(13) it connects, the stroke of electric cylinders output shaft is controlled by operation elevating control handle (13), switch the spool position of valve group (910)
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910509544.3A CN110249733A (en) | 2019-06-13 | 2019-06-13 | Full-automatic transplantation combine transplants unit Hoist Control Unit |
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| CN201910509544.3A CN110249733A (en) | 2019-06-13 | 2019-06-13 | Full-automatic transplantation combine transplants unit Hoist Control Unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111448893A (en) * | 2020-06-12 | 2020-07-28 | 李庆华 | Plant extract collecting and processing device |
| CN112449855A (en) * | 2019-10-12 | 2021-03-09 | 丰疆智能科技股份有限公司 | Header detection device, header automatic lifting system and method |
| CN112640607A (en) * | 2019-10-21 | 2021-04-13 | 丰疆智能科技股份有限公司 | Rebounding device and agricultural machine serving as industrial machine lifting device |
| CN113721452A (en) * | 2021-08-31 | 2021-11-30 | 农业农村部南京农业机械化研究所 | Mechanical weeding part ground inclined three-dimensional profiling device and method |
| CN114931028A (en) * | 2022-05-30 | 2022-08-23 | 农业农村部南京农业机械化研究所 | Highly adaptive picking device |
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