JP2002084820A - Seeding work machine - 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 with each other 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 get thin and made to readily fall. SOLUTION: This seeding implement provides a sowing apparatus equipped with a seed feeding part 71 for feeding seeds in a seed hopper 70 every prescribed amount, a seed-releasing device 73 for receiving seeds fed from the above 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 on traveling body 3 traveling by driving wheels 14 and 17, and cooperates driving rotation of driving wheels 14 and 17 with rotation of a release body 73c of the seed releasing body 73 and rotation of a feeding body 71a of a seed feeding part 71.

Description

DETAILED DESCRIPTION OF THE INVENTION

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

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, there is a sowing machine that feeds out seeds in a seed hopper at a seed feeding part, and transfers the seeds to a seeding groove device by pressurized air from a blower.

In the above-mentioned conventional sowing machine, since the seeds fed in the seed feeding section are transferred to the seeding groove by the blower using a blower, the blower uses a blower. The seeds are transferred in a continuous state during the transfer to the seeding trencher (while being transported by air over a long distance), and the seeds are sown in a field in a row. Then, when the seedlings germinate and grow, the seedlings will grow in a state of contacting in a row, and because it is growing in an overcrowded state, the wind and stagnation are bad, the growth is poor, the stem becomes thin, and it falls down If it falls down easily, the quality of the rice will be poor even if it grows, and in the worst case, it 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 field in a field so that it may become a suitable depth and it may become a suitable space | interval.

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 for receiving the seeds and accelerating and releasing the seeds downward, and a seed guide 75 for guiding the seeds accelerated and released from the seed release device 73 to the seeding groove 81. Drive device 14/17
Equipped on the traveling body 3 traveling on the
Drive rotation of 4.17 and release member 73c of seed release device 73
The invention described in claim 2 is that the rotation of the drive wheels 14 and 17 and the rotation of the feeding body 71a of the seed feeding section 71 are linked. 1 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. The sowing device provided with the body 75 is mounted on the traveling vehicle body 3 traveling on the driving wheels 14 and 17, and the driving rotation of the driving wheels 14 and 17 and the seed discharging device 73
The seed release device 73 once receives the seeds fed from the seed feeding unit 71 up to the seeding / grooving device 81 and sequentially moves downward in a seeding work machine in which the rotation of the discharger 73c is linked to the seeding work machine. Since the seeds are accelerated and released, the seeds can be sown intermittently in the field, and the seeding operation in the spotted state is performed favorably. 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. After all, drive wheel 14
Since the drive rotation of the drive wheels 17 and the rotation of the discharger 73c of the seed release device 73 are linked, the drive rotation of the drive wheels 14 and 17 is changed by changing the engine speed by the throttle lever or operating the transmission 13. Even if the forward speed of the body is changed, the rotation speed of the discharger 73c of the seed discharging device 73 is also changed according to the change of the forward speed of the body, so that appropriate spot seeding can be performed at a constant interval regardless of the forward speed of the body. ,
It germinates well and the seedlings are well grown. The second aspect of the present invention provides a drive rotation of the drive wheels 14 and 17 and a seed feeding portion 7.
Since the seeding machine according to claim 1 is linked to the rotation of the first feeding body 71a, the drive rotation of the drive wheels 14, 17 is changed by changing the engine speed by the throttle lever or operating the transmission mechanism. Even if the forward speed of the body is changed by changing the forward speed, the rotation speed of the feeding body 71a of the seed feeding section 71 is also changed according to the change of the forward speed of the body, that is, in accordance with the change of the forward speed of the body. The number of rotations of the feeding body 71a of the seed feeding section 71 and the number of rotations of the discharging body 73c of the seed discharging device 73 are both changed, so that more appropriate spot seeding can be performed at a constant interval regardless of the forward speed of the body.

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. In addition, 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 driving pulley 7a and the driven pulley 12 are split pulleys.
The driving pulley 7a and the driven pulley 12
And the transmission belt 10 is provided with pulleys 7a and 12
By changing the split width, the power transmission into the main mission case 11
A continuously variable transmission 13 that continuously varies the transmission ratio.
Input from the continuously variable transmission 13 to the main transmission case 11
The rotational power of the shaft 11a is supplied to the main clutch having a wet multi-plate clutch structure.
The main transmission case can be turned on and off by the switch 11b.
Input to the server 11. Entered in main mission case 11
Some of the power generated has two forward speeds and one reverse speed.
After being transmitted to the main transmission 11c
Then, power is split into rear wheel power and front wheel power. Rear wheel power
The rear wheel differential device 11d and the rear wheel clutch
The main mission cable via the brake devices 11e, 11e
The rear wheel transmission shaft 1
5 and 15 to the rear wheel transmission cases 16 and 16
The left and right rear wheels 17, 1 are respectively driven by rear wheel drive shafts 17a, 17a.
7 is rotationally driven. The rear differential 11d is
It is of a known configuration, and when this is working,
The power is divided so that the driving force of the rear wheels 17, 17 becomes even.
Left and right rear wheels 17, depending on the load received from the ground,
The rotational speed ratio of No. 17 varies. Rear wheel device that regulates the above functions
When the flock device 11f is activated, the left and right rear wheels 1
The rotation speed ratio of 7, 17 is fixed to a constant (usually 1: 1)
You. The rear wheel differential lock device 11f is installed near the cockpit 20.
Active and non-active states due to the rear wheel differential lock pedal
And switch to In addition, left and right rear wheel clutch and brake equipment
When each of the positions 11e, 11e is operated, the power is transmitted to the rear wheel 17.
Clutches are disengaged and the rear wheels 17
Is to be applied. This left and right rear wheel clutch
The brake devices 11e, 11e are installed in front of the cockpit 20.
Each is operated by the left and right brake pedals. Front wheel drive
Power is applied to the front wheels via the front wheel differential device 11g.
Driven to final cases 11h, 11h, front wheel drive
The left and right front wheels 14, 14 are rotationally driven by the shafts 11i, 11i.
I do. The front wheel differential device 11g is also a rear wheel differential.
It has the same function as the differential device 11d,
Noh can be regulated by the front wheel differential lock device 11j.
ing. The front wheel differential lock device 11j is also located near the cockpit 20.
On and off by the front wheel differential lock pedal
Switch to state. Therefore, the riding type traveling vehicle body 3 is
Drive by driving the front wheels 14, 14 and the rear wheels 17, 17
Configuration. Power other than rear wheel power and front wheel power
The remaining power is used as the external take-out power,
After shifting by k, seeding with safety clutch 11m
Seeding and fertilizing classifier for turning on and off the drive of the
From the main mission case 11 via the switch 11n
By the seeding transmission shaft 18 taken out to the engine 5
To transmit power to the seeding device 4 through the right side of the
Has become. In the middle of the seeding transmission shaft 18,
A branch case 19 is provided, and the power branch case 19
A configuration for transmitting the power taken out of the fork to the fertilizer application device 1;
Has become. The riding type vehicle body 3 has the engine
A cockpit 20 is provided on the upper side of the
A steering handle 21 is provided. The stearin
On the right side of the steering wheel 21, there is a change of the continuously variable transmission 13.
An auxiliary transmission lever 22 for performing a speed operation is provided. Also before
The main shift lever 2 is located on the left side of the steering handle 21.
3 is provided, and the main gear
Of the gears of the main transmission 11c in the transmission case 11
To change the vehicle speed of the aircraft to "road speed", "seeding work"
Speed "and" reverse speed ". Previous
The main clutch is located on the left side below the steering handle 21.
And the main clutch pedal 24 is depressed.
The main clutch in the main transmission case 11
11b to operate the traveling wheels 14, 14, 17, 17,
The transmission to the seed device 4 and the fertilizer application device 1 is cut off.
You. On the right side of the cockpit 20, the sowing fertilizer application clutch 11
By operating n, transmission to the seeding device 4 and the fertilizer application device 1
A seeding / elevating lever 25 that can be turned on and off is provided. Ma
In addition, an elevating link mechanism is provided at the rear of the riding type traveling vehicle body 3.
26 is pivoted. The lifting link mechanism 26 is
Book upper link 26a and the upper link in the horizontal direction in plan view.
Two lower links 26 arranged so as to sandwich the link 26a
b, 26b. The seeding device 4 is provided with
Through a vertical link 26c provided at the rear end of the link mechanism 26.
It is configured to be mounted on the rear side of the riding type traveling body 3
You. The seeding device 4 is driven by hydraulic pressure from a hydraulic pump 9.
The extension of the hydraulic elevating cylinder 27 operated via the hydraulic valve
The lifting link mechanism 26 pivots up and down due to compression
It is provided so as to move up and down. In addition, the sowing
Operate the hydraulic valve manually by operating the lowering lever 25
The lifting link mechanism 26 is rotated to raise the seeding device 4.
It is possible to descend. Fertilizer applicator 1 is a granular fertilizer
Hopper 40 for storing the fertilizer, fertilizer in the fertilizer hopper 40
Fertilizer feeding section 41 of each strip for feeding a predetermined amount of fertilizer
Each for guiding the transfer of the fertilizer fed from the feeding section 41 ...
Supplying compressed air to the guide pipes 42...
Fertilizing air chamber 43 and fertilizing air chamber 43
Is provided with a fertilizer blower 44 for supplying pressurized air to the
You. Further, the blower 44 for fertilizer application includes the riding type traveling vehicle body 3.
Drive using the battery 45 disposed in the front of the
Configuration. And the fertilizer application device 1
The fertilizer fed from the parts 41 is dropped into the guide pipes 42.
Feeding, guided by pressure air from fertilizing air chamber 43
Via the pipes 42 and the fertilizer guide pipes 46 of each section
Transfer fertilizer to fertilizers 47 of each section provided at the end of inner pipe 46
Then, fertilizer for eight rows is applied to the field.
The fertilizer guide tubes 46 are flexible tubes.
It consists of. The fertilizer application unit 47 includes the fertilizer draft
Connected by inner pipe 46 and boots 48, slides in the field scene
Floats 31, 31, 32, 32 with mounting bolts
More attached. In front of the fertilizer 47,
A fertilizer applicator 50 is provided integrally with the fertilizer section 47.
The fertilizer cultivation device 50 is provided with leveling floats 31, 31, 3
2, 32
Push the mud in the field to the left and right and down as the body advances.
Divide and make grooves. And fertilizer in the groove
Fertilizer is applied to the fertilizer application section 4 by the pressure wind from the air chamber 43.
7 to be supplied. In addition,
Behind the fertilizer part 47 is a fertilizer composed of plates
An earth covering device 51 is provided, and the fertilizer covering earth device 51 is used to
Filling the ditch created by the fertilizer ditch device 50 with the progress
The soil is covered with fertilizer that has been applied. In addition, before
The fertilizer covering earthen ware 51 includes leveling floats 31, 31, 32,
32 respectively. Fertilizer feeding section of each section
And a guide tube 42 that constitutes the feeding part case 41a that constitutes 41.
Means a mounting base welded to the fertilization air chamber 43
(Not shown) attached and fixed by bolts
You. Then, the fertilizer hopper 40 is moved to the feeding part case 41a.
…. In addition, the fertilization air
The chamber 43 is a vertical frame at the rear of the riding traveling vehicle body 3.
52, 52 are attached. Therefore, the fertilizer feeding section
41 ... are arranged at the rear of the riding type traveling body 3
Has become. In front of the fertilizer feeding section 41 of each section, work
Fertilizer for removing fertilizer from the fertilizer hopper 40 after completion
Charge outlets 53 are provided. This fertilizer outlet 53 ...
Since it is provided on the front side of the fertilizer feeding sections 41 ...
Removes fertilizer in the fertilizer hopper 40 from the riding type traveling body side
Work can be done easily. Here, the drive to the fertilizer feeding section 41 ...
The dynamic configuration will be described.
Fertilizer drive arm (not shown) that is driven to rotate by driving
When the connected fertilizer drive rod 54 moves up and down,
To drive the fertilizer feeding drive arm 55 to the fertilizer drive shaft 56.
To transmit. Note that the fertilizer application drive shaft 56 and the fertilizer application drive
A one-way clutch is provided between the
The fertilizer drive shaft 56 moves in a certain direction as the moving rod 54 moves upward.
It only rotates. And drive fertilizer
A structure for driving the fertilizer feeding rolls 41b by the shaft 56
It has become. Next, the seeding device 4 will be described.
The seed feeding section 71 of the seeding device 4 is connected to the power branch case 19.
Of the power from the seeding transmission case 30 to which the power is input.
It operates by transmission. Seeding equipment
Below 4 are two center leveling floats 31, 31
Left and right side leveling floats 32, 32 are provided.
And these leveling floats 31, 31, 32, 32
Slides on the field scene during the sowing operation. Adjustment
Ground floats 31, 31, 32, 32 have a lifting link mechanism
Around the rolling axis 33 with respect to the 26 vertical links 26c
Backward from the main frame 34, which rolls left and right
Through the left and right float support plates 35, 35.
, The float support plates 35, 35,.
At the rear end, left of the leveling floats 31, 31, 32, 32
Float mounting plates 36, 36 fixed to the right respectively
.. Are provided around the left and right rotation shafts 37, 37.
And the tilting posture can be changed freely.
ing. In order to perform a sowing operation by the sowing device 4,
The seeding device 4 is lowered by the seed / lift lever 25 to
Leveling floats 31, 31, 32, 32 are grounded on the field scene.
When the ride-type traveling vehicle body 3 is run,
The front and rear inclination postures of the seats 31 and 31 become a predetermined inclination posture.
Float level detector 31
The hydraulic valve is switched based on the operation of the structure 38 to move the hydraulic valve up and down.
By rotating the link mechanism 26, the seeding device 4
It is configured to control up and down movement to an appropriate position. Where
The configuration of the scene sensing mechanism 38 will be described in more detail. The main frame
The base is attached to a mounting plate 34a provided forward from the
The tip of the pivotally supported upper arm 38a and lower arm 38b
A vertical link is formed by pivotally connecting a vertical arm 38c to the upper part.
The base side of the arm 38a swings downward integrally and
Arm 38d, and the lower end of the arm 38d is
Externally fitted to the tip of the rod 38e fixed to the frame 34
Combine with the bolt 38f from both sides of the lower end of the arm 38d.
By fixing, the upper arm 38a and the lower arm 3
The parallel link consisting of 8b and vertical arm 38c is fixed.
I have. Then, connect the front of the leveling floats 31, 31
38g extending forward from the frame
Is pivotally supported by a pivot shaft 38h at the tip of the upper arm 38a.
The rear end of the arm 38i is connected with the connecting arm 38j.
ing. On the other hand, an angle detection sensor is provided above the vertical arm 38c.
The angle detection sensor 38k is provided.
The end of the arm 38m is connected to the end of the arm 38i by the connecting lock.
Are connected at 38d. Therefore, the center leveling
Both the funnels 31 and 31 are configured to move up and down.
The center leveling float 31, 31 in front of
Hydraulic pressure by angle detection sensor 38k that can be switched by vertical movement
The valve is controlled and the center leveling float 3 is always
Seeding device 4 is properly positioned so that 1, 31 is in the predetermined posture.
To control the elevation. 38p is a sensitivity adjustment wire.
And the elevation sensitivity adjustment provided near the steering handle 21
By operating the lever, it is pushed and pulled in the yellow direction and the sensitivity is
Provided between the tip of the adjustment wire 38p and the arm 38i
By expanding and contracting the tension spring q, the center leveling float 31,
31 By changing the turning power of the arm 38i by the vertical movement of the front part
It has a configuration that can be used. That is, the sensitivity adjustment wire
When 38p is pulled, the tension spring q is extended,
The front of the funnels 31, 31 is difficult to raise, and the control sensitivity is low.
I feel. Conversely, loosen the sensitivity adjustment wire 38p in the direction b.
Then the tension spring q shrinks, so the center leveling float 3
The front portion of the vehicle becomes easy to rise, and the control sensitivity becomes sensitive.
On the other hand, an arm externally fitted to the tip screw portion of the rod 38e
38d Position the bolts 38f on both sides at the lower end in the front-rear direction.
By adjusting the position, the angle of the arm 38d can be adjusted.
The upper arm 38 integrated with the arm 38d can be changed.
a was also changed in angle and pivoted on the tip of the upper arm 38a.
The vertical position of the arm 38i can be changed.
You. Therefore, the center leveling float 3
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.
Seeding transmission cable that changes the drive of the seeding transmission shaft 18 via the
The drive provided on the drive shaft 94a protruding outward from the base 30
A driven sprocket 94b and a driven sprocket provided on the seeding drive shaft 97.
A transmission chain 95a is provided between the transmission chain 95a and the proket 97a.
And cover it with a transmission chain case 95b
You. The driving sprocket 94b and the driven sprocket 9
The drive shaft 94a and the seeding drive shaft 97 have the same number of teeth as 7a.
It rotates at the same speed. Then, the seeding drive shaft 97 is repeatedly
Are provided, and the delivery rolls 71a are provided.
Each of the rolls 71a has three concave portions 71b.
Are driven and rotated in the direction C.
The lower part of the seed hopper 70 into the recess 71b.
Seeds enter and seed out at predetermined intervals below
It is configured to be. The seeding drive shaft 97 has 2
A drive clutch is provided for each row.
Sowing operation can be performed, and sowing works
Can be performed. The seed release device 73 ...
A predetermined width is set in a thin cylindrical casing 73a having a predetermined width.
The rotating body 73c having a thin cylindrical shape has a rotating shaft 73b.
It is configured so that it can be driven and rotated in the
You. And it protruded outward from the seeding transmission case 30.
Drive sprocket 94d provided on drive shaft 94c and rotating shaft
73c and a driven sprocket 94e provided on the driven sprocket 94e.
Chain 95c, and a transmission chain case around it
Covered with 95d. The driving sprocket 94d is
Has a much larger number of teeth than the dynamic sprocket 94e,
A configuration in which the drive shaft 94c rotates the rotation shaft 73b at an increased speed.
Has become. A guide is provided on the outer periphery of the rotating body 73c.
Side view of receiving and storing seeds supplied from tube 72
A large number of sawtooth-shaped seed accommodation grooves 73d are provided. So
Then, the rotation of the rotating body 73c causes the seed to be stored in the seed accommodation groove 73d.
The seeds contained were accelerated in the circumferential direction and released, and accelerated
The seed is transferred to the end of the seed guide tube 75 through the seed guide tube 75.
The seed is introduced into the groove formed by the seeding groove device 81 of the seeding unit 76 provided.
It is configured to transport the offspring and sow 8 rows in the field
I have. Seed storage provided on the outer periphery of the rotating body 73c
Each of the sawtooth-shaped individual shapes of the groove 73d in the side view is
Are formed at acute angles to the rotation direction of
You. Also, in FIG. 2, the rotation direction of the rotating body 73c is opposite.
Then, the portion in which the seed receiving groove 73 d is downwardly descended
Minute, that is, the left part from the perpendicular passing through the center of the rotation shaft 73b.
The lower end of the guide tube 72 is opened at the upper position of
At the position, the seed guide tube 75 is approximated to the width of the seed accommodation groove 73d.
Let it be open. The main part of the seed release device 73
The dimensions and specifications are as follows. Casing 73
a = 200 mm, diameter of rotating body 73c = 180-
186 mm, the outer circumference of the rotating body 73 c and the casing 73 a
Gap 22 with inner circumference = 3-6 mm, width of seed accommodation groove 73d
= 20-30 mm, inner diameter of guide tube 72 = 16 mm, granules
Inner diameter of seed guide tube 75 = 22 to 30 mm, rotating body 73c
Number of sawtooth-shaped seed accommodation grooves 73d = 32 in FIG.
Pieces, the depth of the sawtooth-shaped seed accommodation groove 73d = 15 mm,
Mounting angle of granular seed guide tube 75 to casing 73a
= 15 °, the material of the rotating body 73c is preferably foamable rubber
No. By the way, in order to change the sowing work advance speed of the aircraft,
The operation of the continuously variable transmission 13
When shifting is performed, as shown in the transmission mechanism diagram of FIG.
14,14 ・ Change the drive rotation of the rear wheels 17,17
Change the forward speed of the
Also, since the drive speed that has been changed proportionally is input, sowing
The rotation speed of the transmission shaft 18 is also the front wheels 14, 14 and the rear wheels 17, 1
The roll is changed in proportion to the rotation speed to 7,
And the rotational speed of the rotating body 73c is
-It is changed in proportion to the rotation speed to the rear wheels 17,17.
The sowing unit 76 is provided for the leveling floats 31, 31, 32, and 32.
It is composed of a projection that protrudes below the bottom and
And press the mud in the field to the left and right and down
Seeding groover 81 and the upper part of the seeding groover 81
U-shaped seed guide 81 with its back open in plan view
a. Then, the seed guiding section 81a
Is connected by a seed guide tube 75 and a boot 78
I have. Behind the sowing unit 76, a sowing cover 83
Provided by the sowing soil cover 83 as the aircraft advances.
Seeds that filled the ditch created by the seeding ditcher 81 and were discharged to the field
It is designed to cover the child. This sowing cover 83
Is a plane inclined in the lateral direction on the side of the seed sowing device 81.
The earth surface as the aircraft advances.
Soil is pushed to the top of the seeds and covers it.
ing. Here, the configuration of the seeding cover earthen vessel 83 and its configuration
The operation control will be described in detail. Each leveling float 31,3
1, 32, 32 have cylindrical portions 79 on the left and right sides of the rear upper surface.
Left and right mounting seats 84, 84 are fixed with bolts 85, respectively.
A horizontal frame 86 is provided on each of the mounting seats 84, 84.
Are fixed with bolts, these horizontal frame 86 and mounting seat
The rotary shaft 87 is rotatably mounted through the cylindrical portion 79 of
And a sowing cover 83 is fixed below the rotating shaft 87.
ing. A rotation adjusting arm 8 is provided above the rotation shaft 87.
8 is fixed, and one end of the rotation adjustment arm 88 is
Connect the tip of the inner wire 89a of the ear 89 to the side
An adjustment wire is attached to the outer receiving member 90 fixed to the frame 86.
89 outers are locked. In addition, the rotation adjustment arm
A tension spring between the other end of 88 and the outer receiving member 90
91 is attached. On the other hand, the proximal end of the adjustment wire 89
The inner wire has a base fixed to the main frame 34
The base is fixed to the rotating horizontal shaft 110 rotatably provided on the arm
Connected to the tip of the arm 111. On the other hand,
Of the support frame 92 provided forward from the frame 34
Movement adjustment frame 93 at front end
The vertical position is adjusted by bolts 94 through the long holes 93a.
And supported by the lower end of the movement adjustment frame 93.
A shaft 95 is provided. The left rotating body 96 and the right
The rotatable body 97 is rotatably supported, and each of the rotatable bodies 96
Left and right ground rotating bodies 98 and 99 are rotatably provided at the lower end.
ing. This left ground contact rotating body 98 is a disk with a sharp tip.
If the mud surface is soft, it will go into the mud
The right ground contact rotating body 99 has a wide ground plane at the tip.
It has a columnar shape that rotates in contact with the mud surface
Has become. An angle is detected above the right rotating body 97.
A sensor 101 is provided, and the angle detection sensor 10
The tip of the first detection arm 101a is located above the left rotating body 96.
Are linked. The angle detection sensor 1 of the right rotating body 97
Below 01, a U-shaped iron plate 102 is welded,
At both ends of the iron plate 102, bolts 103 for position adjustment
103 are mounted, and the bolts 10
The upper part of the left rotating body 96 can rotate between 3 and 103
Has become. That is, by turning the bolts 103
The amount of rotation of the upper part of the moving body 96 can be adjusted.
Therefore, if the mud is hard, the left and right ground rotating bodies 98 and 99 are almost the same.
At the same position, the upper part of the left rotating body 96 and the angle detection sensor
The detection arm 101a of the sensor 101 is in the state indicated by the solid line in FIG.
Has become. As the mud softens, it turns left
Since the body 98 enters the mud, the upper part of the left rotating body 96
Is in the state of the imaginary line in FIG.
The sensor 101 detects this. Note that the angle detection sensor 101 detects
The arm 101a is urged by a spring in the direction of E, and
The extension arm 101a rotates following the upper part of the left rotation body 96.
It is configured to be. On the other hand, from the main frame 34
The upper end of the support frame 104 provided upward is electrically driven.
The cylinder 105 is mounted, and this electric cylinder
Of the telescopic part 106 which expands and contracts in the
The tip of an arm 112 whose base is fixed to the rotating horizontal shaft 110
To the end of the telescoping section 106 of the electric cylinder 105.
-Rotating the horizontal shaft 110 by expansion and contraction in the
Pushing and pulling the inner wire of the knot wire 89,
Rotate the movement adjusting arm 88 to set the angle of the
Can be changed to adjust the amount of soil cover. that's all
In short, due to the softness of the mud, the left and right ground rotators 98 and 99
The angle detection sensor 101 detects that the vertical position of the
Out, and according to the detection result, the electric cylinder 105
Control the angle of the sowing cover 83 with the mud
It can be controlled so that the soil cover amount is appropriate. Immediately
If the mud is soft, move the sowing cover 83
The direction is almost the same as the direction so that the amount of soil cover is small,
Conversely, if the mud is hard, move the sowing cover 83
Rotate in the direction to the side to the direction to increase the amount of soil covering
Like that. By the way, the fertilizer application section 47 of the fertilizer application apparatus 1
In the seeding section 76 of the seeding device 4 and in the horizontal direction of the machine
They are arranged differently by a predetermined amount. Therefore, this fertilization
The seeding machine 2 drives the riding-type traveling vehicle body 3 in the field to sow the seeds.
The seeding for eight lines is performed by the device 4, and the sowing device is used.
At a predetermined position beside the seeding position of No. 4 by the fertilizer 1
It is configured to apply fertilizer per minute. In addition, S is a seed falling
An impact sensor for detecting seeding
Provided in a seed guide portion 81a at the upper part of the
Mud or seeds are clogged in the child guide 81a and seeding cannot be performed.
When the seeds are clogged or when the seeds
Not sown when the child is no longer extended
Is detected and seeded on the operation panel in front of the worker.
The purpose of this is to give an alarm so that there is no missing article. work
As soon as this alarm is triggered, the aircraft
And confirm the abnormal part, correct it and re-seeding work.
Open. In addition, L levels the trace of the passage of the right and left rear wheels 17, 17
This is a rake for leveling. Finally, the seeding device 4 is
Rolling control that always keeps the scene horizontal
Will be explained. 100 is a general horizontal sensor,
The base is fixed to the left and right sides of the main frame 34 on the seed device 4 side
Provided at the upper left and right center of the front view portal type frame B
ing. Reference numeral 120 denotes a rolling electric motor,
It is fixed to the vertical link 26c of the descending link mechanism 26,
A drive gear 122 is fixed to the rotary drive shaft 121.
You. And a driven fan gear that meshes with the drive gear 122.
123 is rotatable on the vertical link 26c on the pivot 124
It is pivoting. On the other hand, the driven fan gear 123 has a rotating arm.
And the driven fan gear 123 is fixed by welding.
It is pivotally supported on a pivot 124. And times
Front viewing gate of the upper end of the moving arm 125 and the seeding device 4 side
A left and right spring 126 is provided between the left and right sides of the mold frame B.
126 is mounted. However, in the field, the seeding device 4
When sowing and fertilizing work are performed with the
The seeding device 4 tilted left and right due to the horizontal tilt and unevenness of the surface
At this time, the horizontal sensor 100 detects the lateral inclination of the seeding device 4.
The rolling electric motor 120 is determined based on the detection result.
Drive control to rotate the rotating arm 125 left and right in a predetermined direction
Then, the seeding device 4 is cooled with water through the left and right springs 126.
Control to be flat. For example, seeding equipment
If the left side of the device 4 is inclined so as to be lower,
The driving of the rotating electric motor 120 is controlled to
So that the upper part of 5 rotates rightward,
The turning arm 125 is turned to a position where it becomes horizontal. 1
30 and 130 are left and right line marking markers,
Of the marker support frame 131 whose base is fixed to the
The part is pivotally attached to the part so as to be vertically rotatable. And this left and right
The drawing markers 130 and 130 reciprocate in the field.
Mud surface on the unseeded side during work
Slide the drawing marker body 130a to the next step
The center line of the traveling path is drawn.
132 is provided at the front left and right center positions of the riding type vehicle body 3
This center mascot
132 is drawn by the drawing marker 130 in the previous process.
Sowing work to match the center line
Prescribed strip spacing for sowing strips sown during operation
Sowing work can be performed. Drawing marker 13
A rotation part 133 having a U-shaped cross section is provided at the base of the zero.
This rotating part 133 is the tip of the marker support frame 131.
The pivot 13 is pivotally attached to the part by a pivot pin 134, and the spring 13
In the direction 5 where the drawing marker 130 becomes the action position at 5
It is urged to move down. And to the rotating part 133
At the distal end of the pipe 136 to which the proximal end is fixed, a cylindrical body 1 is attached.
37 is rotatably fitted to the outside, and
Is a rod 1 provided with a drawing marker body 130a at the lower end.
The upper end of 38 is fixed. 139 to the pipe 136
The tip 139a of the stopper is fixed to a cylindrical body.
The cylindrical body 13 is brought into contact with the step 137a of the cylindrical body 137.
7 is prevented from rotating in a certain direction. 140 is the storage
A winding bar provided between the par 139 and the rod 138
The tip 139a of the stopper 139 and the cylindrical body 13
The rod 138 is rotated in a direction in which the step 137a of the rod 7 comes into contact.
It is provided so that it may urge. That is,
The tip 139a of the par 139 and the step 13 of the cylindrical body 137
7a is in contact with the marker body 130a in the field scene.
Obtains an appropriate drawing posture for obstructions such as hard lumps
When the marker body 130a hits or the rod 138 is an obstacle
, The cylindrical body 137 rotates against the helical spring
To prevent damage to the rod 138 and the marker body 130a.
It has a configuration that can be used. 141 is a C-shaped retaining ring,
This is for restricting the cylindrical body 137 to a predetermined position. on the other hand,
The elevating link mechanism 26 is moved upward to move the seeding device 4 upward.
Operating wire 15 configured to be pulled when pressed
The leading end of 0 is connected to the rotating portion 133 at the base of the marker 130.
The lifting link mechanism 2 is used to move the seeding device 4 upward.
When 6 is moved up, the left and right delineation markers 130
It is in the position stored above, sowing equipment for sowing work
It is well known that the lifting link mechanism 26 is moved down to move down
The left or right operation wire 150 is loosened by the left / right selection mechanism.
The marker 130 on the selected side moves down and draws a line.
Operative position. Where left and right
The structure of the drawing marker 130 will be described in more detail.
The other end of the ear 150 is the inner wire
Hydraulic elevating and lowering 150a drives the elevating link mechanism 26 up and down
Connected to the piston portion 27a of the cylinder 27,
150b corresponds to the cylinder portion 27b of the hydraulic lift cylinder 27
Are linked. Therefore, turning traveling on headland during seeding work
The seeding device 4 is raised high from the paddy field when
At this time, the piston portion 27a of the hydraulic elevating cylinder 27
When the operation wire 150
150 inner wires 150a are pulled. to this
A drawing marker that is lying down and in a drawing action position
The car 130 is raised and stands up to a non-drawing posture.
Switch. On the other hand, a pair of left and right operation wires 150 and 15
0, the piston portion 27a of the hydraulic elevating cylinder 27 is
Even if the wire 1 is retracted into the cylinder 27b, the wire 1
50 ・ 150 inner wires 150a ・ 150a
A lock mechanism R is provided to lock so that it cannot be pulled back.
Have been. After turning on the headland, the seeding device 4 is lowered.
When the operation wire 150.
If 50 is locked, the drawing marker 130
Do not move to the pulling posture. In addition, the lock mechanism R
The operating wires 150 are unlocked.
In this case, the drawing marker 130 is moved sideways by the bias of the spring 135.
Move to the defeated drawing posture. However, the lock mechanism R
The piston part 27a of the hydraulic elevating cylinder 27 protrudes.
To pull the inner wire 150a toward the hydraulic cylinder.
There is no locking effect on the stretching action. And this
The lock mechanism R includes both left and right inner wires 150a.
Can be operated so that the seeding device 4 can be lifted.
Lockable so that only one of the left and right sides can be switched automatically automatically each time
You can also operate it. In addition, both left and right innerwa
Operate so that the ears 150a and 150a are not locked
it can. Therefore, by the above operation, both the left and right
The markers 130 and 130 and draw the left and right line markers
Can be in a non-drawing action position. Therefore, before
With the above operation, one of the left and right drawing markers 130 is automatically
Switch to one and draw one of the left and right drawing markers
And you can draw both left and right marker 1
30 and 130 can be drawn simultaneously
You. The lock mechanism R includes an operation wire 15 attached to the case R ′.
0.150 inner wire 150a 150a oil
Two wire insertion holes 151.1 for inserting the pressure cylinder side
Two solenoids 152L and 152 having 51 on one side
From R (only one is shown in the drawing), the plunger 1
Holes 154 and 154 where 53 and 153 protrude and sink are provided.
ing. Plans for solenoids 152L and 152R
Jars 153 and 153 do not energize the solenoid coil.
When not, holes 154 and 154 are formed by springs 155 and 155
From the hydraulic cylinder side
Slider connected to the end of inner wire 150a
Engage with steps 156 'and 156' of pins 156 and 156
To draw the inner wire 150 '150'
To move to the side. When the solenoid coil is energized
154, 154 against the springs 155, 155
And draw the inner wires 150a
Move to the marker side. The solenoid 15
Switching between 2L and 152R is performed by the marker switch shown in the figure.
Switch SW1. This switch SW1
Is a sowing / elevating lever for intermittently operating the transmission to the seeding device 4.
-25 seeding clutch disengagement operation alternately switches every time
It is provided as follows. Marker switch SW
Main switch SW0 is set between battery 1 and battery 45.
Have been killed. Automatically switch this main switch SW0
Position, the seeding / elevating lever 25 at the time of turning
Marker switch SW1 is switched by ON / OFF operation
Instead, the two solenoids 152L and 152R are alternately excited.
Magnetically draw the left and right drawing markers 130
Automatically moves to the drawing position by alternately laying down on one side only
Activated. In addition, both main switch SW0
Position, the seeding / elevating lever 25 enters
Switch the marker switch SW1
The two solenoids 152L and 152R
Are both excited, and the left and right drawing markers 130-1
30 moves to the drawing position with both left and right sides lying down
Operating state. The main switch SW0 is turned off.
The left and right line markers 130
It does not move. The main switch SW0 is
It is provided on the operation panel. Further, the solenoid 152
A marker that lights up in synchronization with the ON / OFF of the L • 152R
Marker lamp LMP (R) / LMP which is a dynamic display
(L) is provided on the operation panel. That is, right line
When the marker 130 is lowered and in a drawing operation state
Indicates that the marker lamp LMP (R) is lit, and
When the marker 130 is lowered and in the drawing state
Indicates that the marker lamp LMP (L) is lit and the operator
Recognize which right marker 130 is active
(This is different from this embodiment.
Seeding with marker 130 provided behind cockpit 20
Machine, the operator does not need to look behind
Which of the draw markers 130 is active
Can be checked with the LAMP (R) and LMP (L) lamps
Very good workability). Here the drawing marker 13
When the 0 is moved down to the operating state,
To explain, this fertilizer sowing machine 2 is an eight-row sowing machine.
A total of 8 Articles, 4 Articles symmetrically to the left and right center of the body
Seeding. At this time, the drawing marker 130 is drawn.
The marker body 130a is the eight sowing seeds that are sowing now.
At the left and right center of the aircraft when the aircraft is sown in the next process on the side of
Draw a line where it hits. Seeding after turning the aircraft around the ridge
-Lower the seeding device 4 with the lifting lever 25 and seed in the same manner.
Performs some sort of work, but the center line drawn in the previous process
Mascot 13 provided at the left and right center of the aircraft
2 so that it is located and the seeding run
Seed at a predetermined strip interval (30 cm) from adjacent strips sown at
You can seed. This drawing marker 130
Left of the aircraft on the center line drawn by
The center mascot 132 provided at the center right is located
The method of seeding by manipulating the seeds in a paddy field is
When sowing with the machine 2, since no trace of the sowing can be seen,
Always effective and properly seeded adjacent streaks
Can be seeded at a predetermined strip interval (30 cm).
Wear. In the following, the seeding device 4 is lowered to the mud surface by turning.
And the line on the opposite side to the side that was in the drawing action position in the previous stroke
The draw marker 130 automatically switches to the drawing action posture.
You. This means that the seeding device 4 must be
So that the seeding / elevating lever 25 is turned off.
Marker switch SW1 switches in conjunction with the
Because. As described above, this fertilizer sowing machine 2 is a riding type
The fertilizer feeding section 4 of the fertilizer applicator 1 while running the traveling vehicle body 3
1, the seed feeding section 71 of the sowing apparatus 4 and a blower for fertilizer application
44, riding by operating the seed release device 73
Leveling floats 31, 31, 32,
The fertilizer is discharged from the fertilizer application section 47 provided at 32 and at the same time
Seeding unit provided on clearing floats 31, 31, 32, 32
The seeds are discharged from 76 ... and fertilized and sown in the field.
Good. At this time, the seeds in the seed hopper 70 are fed by a predetermined amount.
A seed feeding section 71 to be discharged and a seed fed from the seed feeding section 71.
Seed release that receives accelerated seeds and releases them downward
Ejected from the seed release device 73 and the seed release device 73
A seed guiding body 75 for guiding the seeds to the sowing device 81
In addition to the above, the seed releasing device 73
The seeding device 4 is located near the top of the
The seeds fed from the feeding unit 71 are sown on the sowing device 81.
Once the seed release device 73 is located near
Toward the field and release the seeds intermittently.
Can be sowed, sowing work in spot sowing condition is good
Done. Naturally, the seeding ditches 81 are suitable for the field.
The seeds can be sown in the groove formed at the same time, so
Germination rate is improved at a suitable depth
Naturally, good seedlings can be raised. In addition, appropriate
So the growth is extremely smooth
Rice with thick stems and hard to fall, and high quality rice can be harvested
You. Also, when a disease or pest occurs, the seedlings
So there is little spread of diseases and pests,
Spray fungicides and pesticides at the early stage with less damage
You. And, regardless of the unevenness of the field scene,
The front and rear inclination postures of the gates 31 become a predetermined inclination posture.
A field scene detector above the leveling float 31
The lifting link mechanism 26 is rotated based on the operation of the mechanism 38
The center leveling floats 31, 31 and the left and right
Id leveling floats 32, 32 are at a predetermined height relative to the field scene.
The seeding device 4 is controlled to move up and down so as to be maintained. Soshi
The seeding device 4 tilts left and right due to the left and right inclination and unevenness of the mud surface.
When inclined, the horizontal sensor 100 adjusts the lateral inclination of the seeding device 4.
The electric motor for rolling 1 is detected according to the detection result.
20 is controlled to drive the rotating arm 125 in the left and right predetermined directions.
Seeding device through left and right springs 126
4 is controlled to be horizontal. Therefore, the seeding device 4
It can be held in an appropriate position for the field scene by automatic control
In spite of using multiple seeding devices, all seeding depths
Is suitable, and good sowing work can be performed. Follow
Therefore, the germination rate is good and the growth of the seedling is also good. Soshi
In particular, the drive rotation of the front wheels 14, 14 and the rear wheels 17, 17
With respect to the rotation of the feeding body 71a of the seed feeding section 71,
The rotation of the discharger 73c of the seed discharger 73 is linked.
Because it was a seeding machine,
Of the engine speed and the speed change operation of the continuously variable transmission 13
The front wheel 1
4,14 ・ Change the drive rotation of the rear wheels 17,17 to change the
Even if the forward speed is changed, the
The rotation speed of the discharger 73c of the seed discharger 73 is also changed.
Appropriate intervals at regular intervals regardless of the aircraft's forward speed.
Point seeding can be performed, germinating well, and raising seedlings is good.
That is, although the forward speed of the aircraft is increased, the delivery body 71
If the rotation of a and the rotation of the discharger 73c do not change,
The interval (distance) at which seeds are spotted becomes longer, and the space between plants becomes wider.
Conversely, despite the slowing down of the aircraft's forward speed,
The rotation of the projecting body 71a and the rotation of the discharging body 73c do not change.
And the interval (distance) at which seeds are spotted in the field is shortened.
Although the interval between the stocks becomes narrow, according to this embodiment
And the seed release device 73 corresponding to the change in the forward speed of the aircraft.
The rotation speed of the discharger 73c is also changed.
Germinated by spot seeding at regular intervals regardless of speed
The interval between the subsequent seedlings is aligned with the desired interval, and good seedling growth is achieved.
I can do it.

[Brief description of the drawings]

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

FIG. 2 is an overall plan view of the fertilizer sowing machine.

FIG. 3 is a partial cross-sectional side view of the seeding device.

FIG. 4 is a plan view of a main part of the seeding device.

FIG. 5 is a transmission mechanism diagram of the fertilizer sowing machine.

FIG. 6 is a side view of a portion for detecting hard and soft of mud.

FIG. 7 is a partial cross-sectional plan view of a portion for detecting hardness and softness of mud.

FIG. 8 is a diagram illustrating the operation of the drawing marker 130.

9 is an enlarged view of a main part of the drawing marker 130. FIG.

FIG. 10 is an enlarged sectional view of a main part of the drawing marker 130.

11 is an electric circuit diagram for operating the drawing marker 130. FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 riding type traveling body 4 seeding device 14 drive wheel (front wheel) 17 drive wheel (rear wheel) 26 elevating link mechanism 31 center leveling float 70 seed hopper 71 seed feeding part 71a feeding body 73 seed releasing device 73c discharging body 75 seed guiding body 81 Sowing Grower 83 Sowing Cover 100 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 seeding device provided with a seed guide 75 for guiding the seeds accelerated and released from the seed discharging device 73 to the seeding groove device 81 is mounted on the traveling vehicle body 3 running on the driving wheels 14 and 17 and the driving wheels A sowing machine, wherein the drive rotation of 14.17 and the rotation of the discharger 73c of the seed discharger 73 are linked. 2. The seeding machine according to claim 1, wherein the drive rotation of the drive wheels and the rotation of the feeder a of the seed feeder are linked.