JP2002084822A - Seeding apparatus and seeding working machine equipped with the same seeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sow seeds in clusters to a field in adequate depth at adequate interval in order to solve problems in which seedlings are grown in a state brought into contact in rows when seeds are germinated and seedlings are grown by sowing seeds to field in rows and seedlings cause growth failure because of growth in overcrowded state and bad ventilation and stems become narrow and made to readily fall and quality of rice is bad even if rice had fruit and if the worst happens, rice is immersed and withers. SOLUTION: This seeding apparatus is equipped with a seed feeding part 71 for feeding seeds in a seed hopper 70 every a prescribed amount, a seed- releasing device 73 for receiving seeds fed from the seed feeding part 71 and acceleratingly releasing these seeds toward the lower direction and a seed guiding body 75 for guiding seeds acceleratingly released from the seed-releasing device 73 to a sowing ditching machine 81 and arranges the seed-releasing device 73 in the vicinity of the upper part of the sowing ditching machine 81.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sowing apparatus for sowing on a field and a sowing machine equipped with the sowing apparatus.

2. Description of the Related Art A conventional example of this kind is disclosed in JP-A-8-15 / 1994.
As disclosed in Japanese Patent No. 4430, a seeding device that feeds out seeds in a seed hopper at a seed feeding portion and transfers the seeds to a sowing grooving device by pressurized air from a blower, and a sowing machine equipped with the seeding device. is there.

In the above-mentioned conventional sowing apparatus, the seeds fed in the seed feeding section are transferred to the seeding groove by a blower using a blower. The seeds are transported in a continuous state during the transfer to the seeding trencher (while the air is transported over a long distance), and the seeds are sown in a row in a field. Then, when the seedlings germinate and grow, the seedlings will grow in a state of contact in a row, and since it is a growth in an overcrowded state,
Poor wind and poor growth cause poor growth and the stems are thin and easy to fall down. If they fall down, the quality of the rice will be poor even if the fruits are formed, and in the worst case, the rice may die in the water. In addition, when a disease or pest occurs, the seedlings are in contact with each other in a row, so that there is a problem that the disease or pest is immediately transmitted to an adjacent seedling. Then, this invention makes it a subject to seed a seed to a field at an appropriate depth.

According to a first aspect of the present invention, there is provided a seed dispensing unit for dispensing seeds in a seed hopper 70 by a predetermined amount, and a seed dispensing unit 71 for dispensing seeds from the seed dispensing unit 71. A seed release device 73 that receives the seeds and accelerates and releases the seeds downward, and a seed guide body 75 that guides the seeds accelerated and released from the seed release device 73 to the sowing device 81, Seed release device 73
Is a seeding device arranged near the upper part of the seeding groove device 81. The invention according to claim 2 is a device in which the seeding device according to claim 1 is mounted on a rear portion of the riding type traveling vehicle body 3 by a lifting link mechanism 2
6 is provided so as to be able to vertically move up and down and to roll freely left and right, and a mechanism for raising and lowering and rolling control with respect to the riding-type traveling vehicle body 3 by the grounding sensor 31 and the rolling sensor 100 so that the seeding depth is constant. It is a sowing machine.

According to the first aspect of the present invention, there is provided a seed feeding section 71 for feeding a predetermined amount of seeds in a seed hopper 70,
A seed releasing device 73 that receives the seeds fed from the seed feeding portion 71 and accelerates and discharges the seeds downward, and a seed guide that guides the seeds accelerated and released from the seed releasing device 73 to a sowing device 81. Since the seed 75 is provided in the seeding device 73 and the seed releasing device 73 is arranged near the upper part of the sowing device 81, the seeds unwound from the seed feeding part 71 are provided above the sowing device 81. Since the seed releasing device 73 disposed nearby temporarily receives and sequentially accelerates and discharges downward, the seed can be sown intermittently in the field, so that the seeding operation in the spot sown state is favorably performed.
In addition, since the seeding can be sowed in a ditch formed at an appropriate depth in the field by the sowing device 81, the seeding depth becomes a point sowing at an appropriate constant depth, and the germination rate is likely to be improved. Also, good seedlings can be raised, and the problems of the conventional example can be appropriately solved. According to a second aspect of the present invention, the seeding device according to the first aspect is provided on a rear portion of the riding type traveling vehicle body 3 via a lifting link mechanism 26 so as to be able to vertically move up and down and freely roll left and right. 100 is a seeding working machine provided with a mechanism for raising / lowering and rolling control of the riding type traveling vehicle body 3 so that the seeding depth is constant. Since the seeding device can be automatically controlled and held at an appropriate position with respect to the field scene, all seeding depths are appropriate even when a plurality of sowing devices are provided in parallel in the left-right direction. And good seeding work can be performed. Therefore, the germination rate is good and the growth of the seedling is also good.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a paddy field according to one embodiment of the present invention,
Seed seed (Calper coated seed may be used)
The riding type seeder to be seeded will be described in detail with reference to the drawings. This
An embodiment of the present invention will be described with reference to the drawings. FIG.
Is the application of granular fertilizer to a seeding machine that sows seed rice directly in paddy fields.
Shows fertilizer seeder 2 equipped with fertilizer 1 for fertilizing
I have. The fertilizer sowing machine 2 is mainly composed of a riding type traveling body 3
And a fertilizer application device 1 and a sowing device 4 for eight lines.
The drive source is located substantially at the center of the front and rear,
Gin 5, and the engine 5
While rotating integrally with the double pulley 7 via the output belt 6
The connecting shaft 8 is driven. The relay shaft 8 is provided with a hydraulic pump 9.
The hydraulic pump 9 is driven by the drive of the engine 5.
Drive. Also, the double pulley 7
From the drive pulley 7a on the other side of the
To rotate integrally with the input shaft 11a of the main transmission case 11.
By driving the driven pulley 12, the main mission
The power is transmitted into the case 11. still,
The drive pulley 7a and the driven pulley 12 are split pulleys.
The drive pulley 7a, the driven pulley 12
And the transmission belt 10 is connected to the pulleys 7a and 12
By changing the split width, the transmission to the main mission case 11
A continuously variable transmission 13 that continuously varies the transmission ratio.
The power in the main mission case 11 causes
Front wheel drive protruding from both left and right ends of the transmission case 11
The left and right front wheels 14, 14 are driven and rotated by the shafts 14a, 14a.
And from the main mission case 11
Right and left rear wheel transmission case via rear wheel transmission shafts 15, 15
And transmitted to the rear wheel transmission case 16,16.
The left and right rear wheels 17, 1 are driven by the rear wheel drive shafts 17a, 17a.
7 is driven. Therefore, a riding type traveling vehicle
The body 3 drives the front wheels 14, 14 and the rear wheels 17, 17
And run. In addition, the main mission
The power from the case 11 moves to the right side of the engine 5
The seeding device 4 is driven by the seeding transmission shaft 18 provided so as to pass therethrough.
To transmit power. In addition, the seeding transmission
A clutch case 19 is provided in the middle of the shaft 18, and the clutch case 19 is provided.
Fertilize the power taken out of the case 19 by branching
It is configured to transmit to the device 1. And clutch
In the case 19, the drive of the seeding device 4 and the fertilizer application device 1 is performed.
An on / off clutch (not shown) is provided. Also,
The riding type vehicle body 3 has a cockpit above the engine 5.
And a steering hand in front of the cockpit 20.
21 is provided. Right of the steering handle 21
On the side, there is an auxiliary shift for performing a shift operation of the continuously variable transmission 13.
A lever 22 is provided. In addition, the steering hand
A main transmission lever 23 is provided on the left side of the dollar 21, and the main transmission lever 23 is provided.
By operating the speed lever 23, the main transmission case 11
Switch the gear mesh and change the vehicle speed
Speed, sowing speed and reverse speed
It has become. Below the steering handle 21
A main clutch pedal 24 is provided on the left side.
The main mission case 1 is operated by depressing the pedal 24.
1 by operating a main clutch (not shown) in the traveling wheel 1
4, 14, 17, 17, the seeding device 4 and the fertilizing device 1
The transmission is cut off. On the right side of cockpit 20,
By operating the clutch in the clutch case 19,
Seeding capable of turning on and off transmission to sowing device 4 and fertilizer application device 1
-Elevating lever 25 is provided. Also, this riding type traveling
An elevating link mechanism 26 is pivotally supported at the rear of the vehicle body 3.
You. The lifting link mechanism 26 includes one upper link 26a.
And the upper link 26a is sandwiched in the horizontal direction in plan view.
And two lower links 26b, 26b
Is done. The seeding device 4 is provided at the rear end of the lifting link mechanism 26.
Of the riding-type traveling vehicle body 3 through a vertical link 26c provided in the
It is configured to be mounted on the rear side. The seeding device 4
Is driven by a hydraulic pressure from the hydraulic pump 9 through a hydraulic valve.
The lifting and lowering is performed by the expansion and contraction of the operating hydraulic lifting cylinder 27.
The link mechanism 26 moves up and down by rotating up and down.
Is provided. Operation of the seeding / elevating lever 25
By manually operating the hydraulic valve, the lifting link mechanism
26 can be rotated to move the seeding device 4 up and down.
ing. The fertilizer applicator 1 is a fertilizer hod for storing granular fertilizer.
And a predetermined amount of fertilizer in the fertilizer hopper 40 is fed out.
From the fertilizer feeding sections 41 of each strip,
Guide pipes 42 of each section that guide the transfer of fertilizer to be discharged
Fertilizing air chamber for supplying pressurized air to the guide tubes 42.
And pressurized air is supplied to the fertilizer application air chamber 43.
A fertilizer blower 44 is provided. In addition, the fertilizer
The blower 44 is provided at a front portion of the riding type traveling vehicle body 3.
The battery is driven using the battery 45 as a drive source.
You. Then, the fertilizer applicator 1 is fed from the fertilizer feeding section 41.
The supplied fertilizer is dropped and supplied to the guide pipes 42.
The guide tubes 42 ... and each section are generated by the pressure wind from the chamber 43.
At the end of the fertilizer guide tube 46 via the fertilizer guide tube 46.
The fertilizer is transferred to the fertilizer application section 47 of each girder, and 8 fertilizers are transferred to the field.
It is configured to apply fertilizer per minute. The fertilizer guide tube
46 are constituted by flexible tubes.
You. The fertilizer application part 47 includes the fertilizer guide pipe 46 and the boots 4.
Leveling float 3 connected by 8 and sliding on the field scene
1, 31, 32, 32 attached with mounting bolts
ing. In front of the fertilizing section 47, one
A fertilizer application device 50 is provided physically. This fertilizer groove device 5
0 is from the bottom of the leveling floats 31, 31, 32, 32
It is composed of a downwardly projecting protrusion.
The mud of the field is pressed and divided in the left and right direction and the downward direction to form a ditch.
Then, the fertilizing air chamber-43 is provided in the formed groove.
Fertilizer is discharged and supplied from the fertilizer application section 47 by the pressure wind from
It is supposed to be. Also, behind the fertilizer application section 47
A fertilizer covering earthenware 51 composed of plates is provided,
The fertilizer cover earthen basin 51 allows the fertilizer
Filling the ditch made by the ditcher 50 into fertilizer applied to the field
The soil is covered. The fertilizer cover earthenware 51
Are placed on the leveling floats 31, 31, 32, 32, respectively.
Is attached. Constitute the fertilizer feeding section 41 of each section
The feeding part case 41a and the guide pipe 42 are connected to the fertilizer application section.
A mounting table (not shown) welded to the chamber 43
Each is fixed by bolts. And fertilizer
The hopper 40 is attached to the feeding part case 41a.
It has become. In addition, the fertilization air chamber-43 is
The vertical frame 52 at the rear of the riding type vehicle body 3
It is attached. Therefore, the fertilizer feeding section 41 is a riding type
It is configured to be disposed at the rear of the traveling vehicle body 3. Each article
On the front side of the fertilizer feeding section 41 ...
A fertilizer outlet 53 for removing the fertilizer in the bag 40
Provided. The fertilizer outlet 53 is connected to the fertilizer feeding section 4.
1 ... so that the worker can ride on the vehicle.
Easy removal of fertilizer from fertilizer hopper 40 from the side
You. Here, the drive configuration to the fertilizer feeding sections 41 is described.
Specifically, the drive from the clutch case 19 causes the rotary drive to rotate.
Fertilizer drive connected to a moving fertilizer drive arm (not shown)
When the moving rod 54 moves up and down, the fertilizer feeding drive
And the power is transmitted to the fertilizer drive shaft 56. The application
Between the fertilizer drive shaft 56 and the fertilizer feeding drive arm 55
A one-way clutch is provided to move the fertilizer drive rod 54 upward.
As a result, the fertilizer drive shaft 56 rotates only in a certain direction.
Swelling. Then, the fertilizer is driven by the fertilizer drive shaft 56.
. Are driven. Next
Next, the seeding device 4 will be described. Seeds of seeding device 4
The feeding section 71 receives power from the clutch case 19.
It operates by transmitting power from the seeding transmission case 30
Configuration. Also, two under the seeding device 4
Center leveling floats 31, 31 and the left and right sides
De leveling floats 32, 32 are provided.
When the leveling floats 31, 31, 32, 32 are seeded,
She is going to glide through the scene. Leveling float 31,
31, 32 and 32 are vertical links 2 of the lifting link mechanism 26.
Rolling left and right around rolling axis 33 with respect to 6c
Left and right extending from the main frame 34
Are provided via funnel supporting plates 35, 35,.
At the rear end of the float support plates 35, 35 ...
Fixed to left and right of floats 31, 31, 32, 32 respectively
Left and right for the float mounting plates 36, 36 ...
Are supported rotatably around the rotating shafts 37, 37.
The rear inclination posture is freely changed. Seeding equipment
Sowing / elevating lever-2 to perform sowing work
5, the seeding device 4 is lowered and the leveling float 3
Ride-type traveling vehicle with 1, 31, 32, 32 grounded to the field scene
When the body 3 is run, the center is leveled as a ground sensor.
The front and rear inclination postures of the floats 31 and 31 are the predetermined inclination postures.
A feeling of the field scene above the leveling floats 31, 31
The hydraulic valve is switched based on the operation of the
The seeding device is rotated by rotating the lifting link mechanism 26.
4 is moved up and down to an appropriate position. here
Now, the configuration of the field scene sensing mechanism 38 will be described in more detail. The lord
The mounting plate 34a provided forward from the frame 34
Upper arm 38a and lower arm 38b pivotally supported at the base
The vertical arm 38c is pivotally attached to the tip of the LM to form a parallel link.
The lower part swings integrally with the base side of the upper arm 38a.
Arm 38d toward the lower end of the arm 38d.
Of the rod 38e at the end of the rod 38e fixed to the main frame 34 side
To the bolt 38 from both sides of the lower end of the arm 38d.
f, the upper arm 38a and lower arm
Parallel link consisting of arm 38b and vertical arm 38c is fixed
Have been. And the front of the leveling floats 31, 31
Arm 3 extending forward from the connected frame
8g is pivotally supported on a pivot shaft 38h at the tip of the upper arm 38a.
Connected to the rear end of arm 38i by connecting arm 38j
Have been. On the other hand, an angle is detected above the vertical arm 38c.
A sensor 38k is provided.
8k arm 38m tip is connected to arm 38i tip
They are connected by a rod 38n. Therefore, center alignment
The ground floats 31, 31 both move up and down.
In front of the center-leveling floats 31, 31
With the angle detection sensor 38k that can be switched by vertical movement of the part
Hydraulic valve is controlled and always floats the center
Seeding device 4 is properly adjusted so that 31 and 31 are in a predetermined posture.
Control the ascent and descent to the position. 38p is a sensitivity adjusting wire.
Therefore, the elevation sensitivity provided near the steering handle 21
When the adjustment lever is operated, it is pushed and pulled in the
Provided between the tip of the degree adjustment wire 38p and the arm 38i
Center tension Float 3
The rotation power of the arm 38i is changed by the vertical movement of
It has a configuration that can be changed. That is, the sensitivity adjustment
When the ear 38p is pulled, the tension spring q is extended, so the center is aligned.
Ground float 31, 31 The front part becomes difficult to rise, and control sensitivity
Becomes insensitive. Conversely, connect the sensitivity adjustment wire 38p in the direction
When loosened, the tension spring q shrinks, so the center leveling float
31, 31 The front part is easily raised and the control sensitivity is sensitive.
You. On the other hand, an arm externally fitted to the threaded end of the rod 38e.
The position of the bolt 38f on both sides of the lower end of the
The position of the arm 38d is fixed by adjusting the position of the arm 38d.
Since the degree can be changed, the upper arm integrated with the arm 38d
The angle of 38a is also changed, and a pivot is provided at the tip of the upper arm 38a.
The vertical position of the arm 38i can be changed.
I have. Therefore, the center-leveling float 3 is adjusted by this adjustment.
1, 31 can be changed.
The descending control sensitivity can be changed. Seeding device 4
The section includes a seed hopper 70 for storing seeds, the seed hopper 7
Seed feeding section 71 of each section for feeding a predetermined number of seeds in 0
, The transfer of the seeds fed from the seed feeding sections 71.
Guide pipes 72 of each section to be guided, and extension of the guide pipes 72.
Seeds that receive and accelerate downward and release the seeds
Release device 73 and accelerated release from the seed release device 73.
Seed guide that guides the seeds to the sowing device 81 ...
75 ... and so on. Therefore, from the seed hopper 70
The seeds fed by the seed feeding sections 71 are fed into the guide tubes 72.
, And the seeds are temporarily received by the seed release device 73.
After stopping, accelerate downward and release
Provided at the end of the seed guide tube 75 via the guide tube 75.
The seeds are conveyed to the sowing section 76 of each row, and the
It is configured to perform sowing. The seed guide tube 75
Are constituted by flexible tubes.
Also, a seed hopper 70, a seed feeding section 71, and a seed release device
73 is a seeding part support having a lower end fixed to the main frame 34
It is supported by the frame A. To the seed feeding section 71 ...
The drive configuration will be described.
Connected to a seeding drive arm 94 which is driven to rotate by the
The seeding drive rod 95 moves up and down, sowing
Drives the feeding drive arm 96 and transmits it to the seeding drive shaft 97
You. The sowing drive shaft 97 and the sowing feeding drive arm 96
A one-way clutch is provided between the
5, the seeding drive shaft 97 rotates only in a certain direction
Not to be. And the seeding drive shaft 97
A pay-out roll 71a is provided for each section, and
Each of the rolls 71a has three concave portions 71b.
Are formed and the feeding rolls 71a are driven in the direction C.
The concave portion is moved from the lower part of the seed hopper 70 by being rotated.
Seed enters into 71b, and the seeds are spaced downward by a predetermined amount.
The child is paid out. In addition, the seeding drive shaft 9
7 is provided with a drive clutch for every two rows,
The drive can be turned on and off with a few
Sowing can be performed. Seed release device
73 are inside a thin cylindrical casing 73a having a predetermined width.
And a rotating shaft 73b rotated by a motor (not shown).
Through a thin columnar rotating body 73c having a predetermined width
Are supported so as to rotate in two directions. Rotating body 73c
Receives the seeds supplied from the guide tube 72
Numerous seed receiving grooves 73 having a sawtooth shape in side view
d is provided. Then, the seed is generated by the rotation of the rotating body 73c.
By accelerating the seeds stored in the child storage groove 73d in the circumferential direction
The released and accelerated seeds are passed through the seed guide tube 75.
Seeding device 81 of seeding section 76 provided at the end of child guide tube 75
The seeds are transported into the ditch formed in the above, and seeded for 8 rows in the field
Is performed. On the outer periphery of the rotating body 73c
Individual shape of a saw-toothed side view of the seed receiving groove 73d provided
The shape is an acute angle with respect to the rotation direction of the rotating body 73c.
Shape. Also, in FIG.
The seed accommodation groove 73d is directed downward with respect to the rotation direction of c.
Part, that is, a vertical line passing through the center of the rotating shaft 73b.
Open the lower end of the guide tube 72 at the upper position of the left part from the line
Then, the seed guide tube 75 is placed below the
The opening is approximated to the width of d. The seed release device 7
The dimensions and specifications of the main part 3 are as follows.
The diameter of the casing 73a = 200 mm,
Diameter = 180-186 mm, outer circumference of rotating body 73c and cable
Gap 22 between the inner periphery of the thing 73a = 3-6 mm, seed collection
The width of the groove 73d = 20-30 mm, the inner diameter of the guide tube 72 =
16 mm, inner diameter of granular seed guide tube 75 = 22 to 30 m
m, a saw-shaped seed receiving groove 73 in the rotating body 73c
The number of d = 32, the depth of the sawtooth-shaped seed accommodation groove 73d
Length = 15 mm, casing 73a of granular seed guide tube 75
Angle of attachment to the rotor = 15 °, the material of the rotating body 73c is foamable
Is preferred. The sowing unit 76 includes a leveling float 31,
Consists of projections protruding downward from the bottom surface of 31, 32, 32
Mud in the field as the aircraft advances
Seeding groover 81 that pushes and grooves in opposite directions, and the seeding groover
A U-shape formed at the top of 81 and open at the rear in plan view
And a seed-shaped guide portion 81a. Soshi
The upper part of the seed guide portion 81a is connected to the seed guide tube 75 and boots.
It is connected by 78. It is behind the sowing part 76
A sowing cover 83 is provided, and the sowing cover 83
Fill the groove created by the seeding groover 81 with the advance of the aircraft.
In addition, the seeds discharged to the field are covered with soil.
The sowing cover 83 is sowed in the horizontal direction.
Equipped with a soil covering surface that is a flat surface inclined to one side, allowing the aircraft to move forward
Accordingly, the soil is pushed to a position above the seeds by the covering surface.
To cover the soil. Where the seeding cover
The configuration of 83 and its operation control will be described in detail. Each leveling
Left and right sides of the rear upper surface of the floats 31, 31, 32, 32
The left and right mounting seats 84 having a cylindrical portion 79
Fix each at 85, and each upper part of its mounting seat 84
And fix the horizontal frame 86 with bolts.
Shaft 86 through the cylindrical portion 79 of the mounting seat 84
7 is rotatably mounted, and the seeding cover is provided below the rotating shaft 87.
The earthenware 83 is fixed. Also, on the upper part of the rotating shaft 87
The rotation adjustment arm 88 is fixed, and the rotation adjustment arm 88 is fixed.
At one end side of the inner wire 89a of the adjustment wire 89
Outer receiving member fixed to the horizontal frame 86 by connecting the sides
The outer side of the adjustment wire 89 is locked to 90. Ma
The other end of the rotation adjusting arm 88 and the outer receiving member 9
A tension spring 91 is mounted between the first and second positions. On the other hand,
The inner wire on the proximal end side of the ear 89 is connected to the main frame 34.
Rotary horizontal shaft rotatably mounted on arm with base fixed to
110 is connected to the tip of an arm 111 having a base fixed thereto.
ing. On the other hand, the main frame 34 is provided forward.
Move the movement adjustment frame 93 to the front end of the support frame 92.
To the bolt 94 via the elongated hole 93a of the dynamic adjustment frame 93
This movement adjustment frame is fixed so that the vertical position can be adjusted more freely.
A support shaft 95 is provided at the lower end of the shaft 93. On the support shaft 95
Pivotally support the left rotating body 96 and the right rotating body 97 in a freely rotatable manner.
Left and right ground rotating bodies 98.9 are provided at the lower ends of the rotating bodies 96 and 97, respectively.
9 is provided rotatably. This left ground rotator 98
If the mud surface is soft, it will enter the mud if the mud surface is soft
The right-handed rotator 99 has a tip
Cylindrical shape with a wide ground plane and rotates in contact with mud surface
It is shaped like And of the right rotating body 97
An angle detection sensor 101 is provided at the upper part,
The tip of the detection arm 101a of the degree detection sensor 101 turns left
It is connected to the upper part of the moving body 96. The right rotating body 97
Below the angle detection sensor 101, a U-shaped iron plate 102 is provided.
Welded to adjust the position at both ends of the iron plate 102
Bolts 103 are installed between the U-shaped
The upper portion of the left rotating body 96 passes between the bolts 103
It can rotate. That is, the bolt 103.1
The amount of rotation of the upper part of the left rotating body 96 can be adjusted by adjusting 03.
Swelling. Therefore, if the mud is hard,
Since 98 and 99 are located at substantially the same position,
Section and the detection arm 101a of the angle detection sensor 101 are shown in FIG.
4 is in the state of the solid line. As the mud softens
The left ground contact rotating body 98 enters the mud,
The upper part of the rotating body 96 is in the state of the virtual line in FIG.
This is detected by the angle detection sensor 101. Note that the angle detection
The detection arm 101a of the sensor 101 is attached by a spring in the direction of E.
And the detection arm 101a is positioned above the left rotating body 96.
It is configured to rotate following the part. Meanwhile, Lord
Support frame 10 provided above frame 34
4, an electric cylinder 105 is mounted on the upper end,
Expansion and contraction of the electric cylinder 105 in the heat direction
The base of the end of the portion 106 is fixed to the rotating horizontal shaft 110
Connected to the tip of the arm 112, the electric cylinder 105
The horizontal axis 110 is rotated by the expansion and contraction of the elastic part 106 in the heat direction.
To push the inner wire of the adjustment wire 89.
Pulling, turning the rotation adjusting arm 88, sowing
A configuration in which the amount of soil covering can be adjusted by changing the angle of the earth covering device 83;
Has become. In short, the ground is left and right because of the softness of the mud
The change in the vertical position of the rotating bodies 98 and 99 is detected by the angle detection
Sensor 101, and according to the detection result, the electric motor
By controlling the cylinder 105, the angle of the sowing cover 83
It can be controlled to obtain an appropriate amount of soil covering regardless of the hardness of the mud.
Things. In other words, if the mud is soft,
Container 83 in the same direction as the fuselage advancing direction to reduce the amount of soil covering
On the contrary, if the mud is hard,
Rotate 83 in the direction to the side of the aircraft
The amount of soil covering is increased. By the way, fertilizer
The fertilizer application unit 47 is located between the sowing unit 76 of the sowing device 4 and the left side of the machine.
They are arranged differently by a predetermined amount in the right direction. Follow
The fertilizer sowing machine 2 moves the riding traveling body 3 in a field.
When the sowing device 4 is allowed to travel and sow 8 seeds,
The fertilizer is applied to a predetermined position on the side of the sowing position of the sowing device 4.
The apparatus 1 is configured to perform fertilization for eight rows.
In addition, S is an impact sensor that detects that seeds are falling.
In the seed guiding portion 81a at the upper part of the sowing device 81,
Mud and seeds are packed in the seed guide 81a.
When the seeds cannot be sown, or when the seed feeding section 71
When the seeds are clogged and the seeds are no longer fed,
It is detected that it is not seeded, and the driver
To alert you so that you can see the unseeded strip
belongs to. Workers will be notified immediately when this alarm is issued.
Immediately, stop the aircraft, check for abnormal parts, and
Correct and restart the seeding operation. L is the right and left rear wheels 17,
This is a leveling rake for leveling the trace of 17 passages. last
Then, the seeding device 4 is always kept horizontal with respect to the field scene.
A description will be given of the rolling control. 100 is a rolling cell
A general horizontal sensor as a sensor,
With the base fixed to both left and right sides of the main frame 34
It is provided on the upper left and right center of the viewable portal frame B.
120 is an electric motor for rolling, which is a lifting link
The rotation is fixed to the vertical link 26c of the mechanism 26.
The drive gear 122 is fixed to the drive shaft 121. Soshi
And a driven fan gear 123 meshing with the drive gear 122
Pivotally supported on the vertical link 26c by the pivot 124
I have. On the other hand, the driven fan gear 123 has a rotating arm 125.
Are fixedly welded together with the driven fan gear 123 and the pivot shaft 1.
24 is pivotally supported. And the rotating arm
125 front-end portal type frame on the side of the seeding device 4
The right and left springs 126 are located between the left and right sides of the
Has been installed. However, the seeding device 4 is moved downward in the field.
When performing seeding and fertilization work on the soil,
When the seeding device 4 tilts left and right due to tilting or unevenness, the horizontal cell
Sensor 100 detects the left-right inclination of the seeding device 4 and performs the detection.
The drive of the rolling electric motor 120 is controlled based on the result.
To rotate the rotating arm 125 in a predetermined direction
The seeding device 4 is leveled via the springs 126
Control. For example, the left side of the seeding device 4 in the front view of the fuselage
When the vehicle is tilted so that the
By controlling the drive of the motor 120, the upper part of the rotating arm 125 is
Seeding device 4 is leveled so as to rotate to the right
The turning arm 125 is turned to the position. From the above,
The fertilizer-seeding machine 2 allows the riding type traveling body 3 to travel.
, Fertilizer feeding section 41 of fertilizer applicator 1, seed fertilizer of seeding apparatus 4
The outlet 71, the fertilizer blower 44, and the seed release device 73
By actuating, the terrain behind the riding traveling vehicle body 3
Fertilizer application part 47 provided in floats 31, 31, 32, 32 ...
The fertilizer is discharged from the tank and the leveling floats 31, 3
Seeds are discharged from the sowing units 76 provided at 1, 32, 32
Fertilize and sow the fields. At this time, seed hopper
A seed feeding unit 71 that feeds seeds in a predetermined amount by 70;
Receiving the seeds fed from the seed feeding section 71,
A seed release device 73 that accelerates and releases the seed
The seeds accelerated from the discharge device 73 are sowed to the sowing device 81 or
And a seed guide body 75 for guiding the seeds.
The seeding device in which the discharging device 73 is disposed near the upper part of the seeding device 81
Since it is a seed device,
Seed that put out the seed near the upper part of the sowing device 81
The child discharge device 73 receives it once and sequentially accelerates downward
Sowing seeds intermittently in the field
So that the seeding operation in the point seeding state is favorably performed.
Of course, it was formed at an appropriate depth in the field with the seeding and ditching device 81.
Since the seeds can be seeded in the groove in a spotted state, the seeding depth is appropriate.
Seedling with constant depth, germination rate is improved and seedlings are good
Can be cultivated. In addition, since appropriate spot seeding can be performed,
The growth is extremely smooth due to the good wind and the sashimi
It becomes difficult rice, and high quality rice can be harvested. Also disease
The seedlings are far away even when the pests or pests emerge.
Less spread of diseases and pests quickly, less damage
Fungicides and pesticides can be sprayed at an early stage. And
Center-leveling float 31.3 regardless of unevenness of the field scene
1), so that the front and rear inclination posture becomes a predetermined inclination posture.
Operation of the field scene sensing mechanism 38 above the front of the funnel 31
The lifting link mechanism 26 is rotated based on the
Tar leveling floats 31, 31 and left and right side leveling flows
Are maintained at a predetermined height with respect to the field scene.
Sowing apparatus 4 is controlled to move up and down. And on the mud surface
When the seeding device 4 is tilted left and right due to left and right inclination and unevenness, water
The flat sensor 100 detects the horizontal inclination of the seeding device 4 and
Drives the rolling electric motor 120 based on the detection result.
To rotate the rotating arm 125 in a predetermined direction to the left and right.
The seeding device 4 is leveled via the left and right springs 126.
Control so that Therefore, the seeding device 4 is moved to the field scene.
Can be held in an appropriate position by automatic control.
All seeding depths are appropriate in spite of using seeding equipment
And good seeding work can be performed. Therefore, the germination rate
The seedlings grow well.

[Brief description of the drawings]

FIG. 1 is an overall side view of a fertilizer sowing machine.

FIG. 2 is a partial cross-sectional side view of the seeding apparatus.

FIG. 3 is a plan view of a main part of the seeding device.

FIG. 4 is a side view of a portion for detecting hard and soft of mud.

FIG. 5 is a partial cross-sectional plan view of a portion for detecting hardness and softness of mud.

[Explanation of symbols]

 Reference Signs List 3 Riding type traveling vehicle body 4 Seeding device 26 Elevating link mechanism 31 Grounding sensor (center-leveling float) 70 Seed hopper 71 Seeding unit 73 Seed releasing device 75 Seed guide 81 Seeding groove device 83 Seeding cover device 100 Rolling sensor (horizontal) Sensor)

Claims (2)

[Claims] A seed feeding unit for feeding seeds in a seed hopper by a predetermined amount, a seed discharging device for receiving seeds fed from the seed feeding unit and accelerating and releasing the seeds downward; A seed guide 75 for guiding the seeds accelerated from the seed releasing device 73 to the seeding device 81; and providing the seed releasing device 73 with the seeding device 8
A seeding apparatus, wherein the seeding apparatus is arranged near an upper part of the apparatus. 2. The grounding sensor 31 wherein the seeding device according to claim 1 is provided at the rear of the riding type traveling vehicle body 3 via a lifting link mechanism 26 so as to be vertically movable and freely rollable.
And a mechanism for raising and lowering and rolling control of the riding type traveling vehicle body 3 so that the seeding depth is constant by the rolling sensor 100.