JPH07255225A - Non-tilled transplanter - Google Patents

Abstract

PURPOSE:To construct a non-tilled transplanter in a compact and well balanced manner, which transplants seedlings in a non-tilled field. CONSTITUTION:This non-tilled transplanter is composed of furrow-making members 60,... which make furrows for transplanting seedlings on the top-soil surface in a non-tilled field, a seedling loading table 70 which makes lateral reciprocal movements with seedlings on it and delivers the seedlings loaded on the table one by one to specified seedling-picking up positions and planting members 80,... which plant the seedlings delivered to the seedling-picking up positions by the seedling loading table 70 into furrows for transplanting seedlings. In the non-tilled transplanter, the furrow-making devices 60,... are placed in front of the seedling loading table 70 and at the same time a reciprocation-driving device 53 for reciprocating laterally the seedling loading table 70 is placed in the back of the seedling loading table 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a no-tillage transplanter for transplanting seedlings into a field that is not tilled.

[0002]

2. Description of the Related Art Recently, attention has been focused on a rice cultivation method in which uncultivated fields are filled with water to plant rice seedlings and the seedlings are subjected to severe growth conditions to grow robust crops that can respond to changes in the environment. Has been done. When seedlings are planted by this method, the surface soil surface of an uncultivated field is hard, so a groove for seedling transplant is formed on the surface soil surface prior to seedling planting, and the seedlings are planted in the grooves. Therefore,
A normal rice transplanter cannot be used, and a special rice transplanter for no-till fields is required.

[0003]

As a rice transplanter for the above-mentioned no-tillage field, there has already been provided with a drive type grooving device such as a rotating disk in front of the seedling table. However, the conventional non-tillage rice transplanter has a lateral movement mechanism of the seedling mounting table provided on the front side of the seedling mounting table, like the rice transplanting machine for a general cultivated field. The device was provided. Since the grooving device needs to be placed at a position where it does not interfere with the rear wheels of the running part, the seedling stand and the planting device will be located rearward by the space for arranging the grooving device, and the overall length of the machine will be long. In addition, the center of gravity of the planting part is located rearward, which causes a problem of poor weight balance. It is an object of the present invention to solve this problem and provide a compact and well-balanced no-till transplanter such as a rice transplanter for a no-till field.

[0004]

In order to solve the above problems, the present invention has the following constitution. That is, the no-tillage transplanter according to the present invention is mounted by grooving device that forms a groove for transplanting seedlings on the surface soil surface of an uncultivated field, and by reciprocating left and right by mounting seedlings. A seedling mounting table for supplying the seedlings to the predetermined seedling picking position one by one, and a planting device for planting the seedlings, which are supplied to the seedling picking position by the seedling picking table, in the groove for transplanting the seedlings. In the tillage transplanter, the grooving device is provided in front of the seedling placing table, and a reciprocating device for reciprocating the seedling placing table left and right is provided on the rear side of the seedling placing table.

[0005]

[Function] Since the left-right reciprocating device of the seedling mounting table is provided on the rear side of the seedling mounting table, the seedling mounting table and the planting device can be provided close to the traveling part, and the overall length of the machine body is shortened. In addition to being possible, the weight balance becomes good.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments shown in the drawings will be described below. In this no-tillage transplanting machine 1, a planting work machine 4 which is a planting section is mounted so as to be able to move up and down via a lifting link device 3 behind a four-wheel traveling vehicle body 2 which is a traveling section.

The traveling vehicle body 2 has a pair of left and right front wheels 6, 6 and rear wheels 7, 7. The mission case 9 arranged in the front part of the machine body, the pair of left and right main frames 10 and 10 fixed to the rear surface of the mission case, and the horizontal frame 11 connecting the rear end parts of the main frame together form a machine body frame. An engine 14 is mounted on a pedestal 13 that is constructed and fixed to the main frames 10, 10. The rotational power of the engine 14 is shifted by the mission in the mission case 9 and taken out as a traveling output and a PTO output. Driving output is 1 front axle
It is transmitted to front wheel final cases 17 and 17 via 6 and 16, and is transmitted to rear wheel final cases 20 and 20 via rear wheel transmission shafts 19 and 19. Also, PT
The O output is transmitted from the mission to the planted clutch 23 via a PTO transmission shaft (not shown).

The cockpit 25 is installed on an engine cover 26 that covers the upper side of the engine 14. A steering handle 27 is provided in front of it. Around the engine cover 26 is a horizontal step floor 28 that allows the operator to walk freely.

The lifting link device 3 includes a main frame 1
The upper link 31, 31 and the lower link 3 are attached to the link base frame 30 fixedly provided at the rear end portions of 0 and 10.
2, 32 are attached rotatably up and down, and a connecting frame 33 is connected to the rear ends of these links. Then, a yawing frame 36 is rotatably attached to the rear side of the connecting frame 33 about a vertical yawing shaft 35 as a fulcrum, and a bearing portion 37 integrally formed on the lower portion of the yawing frame 36 is attached from the planting machine side. A rolling shaft 38 protruding forward is rotatably inserted and connected. Therefore, planting work machine 4
Is supported so as to be rotatable (yawed) about a vertical axis and rotatable (rolling) about a substantially horizontal axis in the front-rear direction.

The lifting / lowering operation of the lifting / lowering link device 3 is performed by the hydraulic cylinder 40. The hydraulic cylinder 40 has its base side pivotally supported by a support member (not shown) fixed to the main frames 10, 10, and its piston rod side has a lower end of a swing arm 41 integrally provided at the base of the upper links 31, 31. Connected to the department. When the hydraulic cylinder 40 is expanded and contracted, the upper links 31, 31 and the lower links 32, 3
2 rotates up and down, and the planting work machine 4 moves up and down with a substantially constant posture.

Further, a pair of left and right lock springs 42, 42 are provided for locking the yawing and rolling when the planting work machine 4 is raised to a non-working position. One end of the lock spring 42 is attached to a seedling table supporting frame 72, which will be described later, of the planting work machine 4 so as to be rotatable about a horizontal axis and diagonally up and down. There is. The other end is formed in a loop shape including the elongated hole 43, and the lock pin 44 protruding to the outer surface of the lower link 32 is slidably fitted in the elongated hole 43. When the planting implement 4 is in the working position,
Since the lock pins 44, 44 are located in the middle portions of the elongated holes 43, 43, the lock springs 42, 42 are in a free state, and the planting work machine 4 is capable of yawing and rolling. However, when the planting work machine 4 is moved up to the non-working position, the lock pins 44, 44 are locked in the long holes 43, 4.
Since the lock springs 42 and 42 are pulled by engaging with the front end portion of No. 3, yawing and rolling are restricted, and the planting work machine 4 is constrained in a fixed posture.

The planting work machine 4 includes a transmission case 50 which also serves as a frame, a grooving disk 60 which is a grooving device for forming a groove for transplanting seedlings on the top soil surface of a field, ... A seedling mounting table 70, a planting device 80 for planting the seedlings on the seedling mounting table one by one in the field scene (6 sets), ...
It is equipped with sleds 90, 90 etc. that slide on the surface soil surface of the field.

The transmission case 50 includes an input portion 51 located at the center of the left and right sides, an L-shaped portion 52 having an L-shape in a side view and integrally connected to a rear portion of the input portion, and an upper end portion of the L-shaped portion. The seedling table driving unit 53 provided on the left and right, the transmission pipes 54, 54 protruding left and right from the seedling table driving unit, and the planting device transmission unit 55 vertically extending from the end of the transmission pipe. , 55. Further, horizontal plates 57, 57 parallel to the L-shaped portion 52 are fixed to the outer surfaces of the planting device transmission portions 55, 55, and the mounting members fixed to the upper portions of the horizontal plates 57, 57 and the L-shaped portion 52. The mudguard plate support pipe 58 is horizontally mounted by the left and right sides 52a and 52a, and a grooved disk drive shaft 61, which will be described later, protruding from the input section 51 to the left and right is provided at the front end portions of the horizontal plates 57 and 57. It is rotatably supported by 57a and 57a. The base portion of the rolling shaft 38 is fitted to the input portion 51.

The grooving disks 60, ... Are attached to the grooving disk drive shaft 61 at a predetermined interval, and rotate in a predetermined direction with the lower part thereof submerged in the soil, so that the machine body is advanced. A groove for transplanting seedlings is formed on the surface soil of the field.

The seedling mounting table 70 is provided so as to be inclined so that the front side is in a higher position, and the L-shaped portion 52 and the horizontal plate 57,
Support rail 71 fixed to 57 and lateral plates 57, 5
It is supported by the rollers 73, 73 attached to the upper end of the seedling table support frame 72 fixed to 7, and is slidable right and left. The seedling mounting table 70 has a seedling mounting portion 70 for the number of planting rows.
Partitioned into a, ..., And seedling feeding belts 75, ... Further, adjacent to the lower end of the seedling placing table 70, a seedling receiving plate 77 having seedling taking openings 76, ... Corresponding to the planting devices 80 ,. The left and right ends of the lateral movement rod 78 protruding laterally from the seedling table driving unit 53 of the transmission case 50 and the lower left and right side surfaces of the seedling table 70 are connected to the connecting plates 79, 7.
9 are connected, and the lateral movement rod 78 reciprocates left and right, so that the seedling mounting base 70 also reciprocates left and right, and the seedling picking holes 76 ,. The above seedlings will be supplied one by one.

The planting device 80, ... Includes a planting device mounting shaft 81 (1, 2, 3) rotatably supported by the bent portion of the L-shaped portion 52 and the lower ends of the planting device transmission portions 55, 55. Are attached to the left and right ends of the. Each planting device 80
Is a rotating case 82 that rotates together with the planting device mounting shaft 81.
And a pair of implanting rods 83, 83 attached to both ends of the rotating case. The power transmission mechanism in the rotating case 82 causes the planting rods 83, 83 to rotate in a direction opposite to the rotating direction of the rotating case 81, and the tip of a fork-shaped seedling separating claw 82a fixed to the planting rod is vertically deformed into an elliptical shape. Operates to draw a closed trajectory. As a result, the seedling separating claws 83a are attached to the seedling mounting table 70.
The seedlings supplied to the seedling take-out port 76 are separated and held, and the seedlings are planted in the groove for transplanting seedlings formed by the grooving disk 60.

The sleds 90, 90 are provided with lateral plates 57, 57.
Are attached to the rear ends of the support arms 91, 91 provided at the upper and lower portions so as to be vertically rotatable. During the planting work, while supporting a part of the weight of the planting work machine 4, it slides on the surface soil surface as the machine body advances.

Further, the mudguard plate supporting pipe 58.
, A mudguard plate 95 is attached between the grooving discs 60, ... And the planting device 80, and the mud scraped up by the grooving discs 60 ,. 8
It is designed so that 0, ... is not applied.

The internal structure of the transmission case 50 is as follows.

The power transmitted from the PTO shaft 23a, which is the driven shaft of the planting clutch 23, to the input shaft 101 of the input unit 51 via the planting unit transmission shaft 100 is input by the bevel gears 103 and 104. It is transmitted to the horizontal axis 105 of the department. Then, the rotation of the input portion horizontal shaft 105 is transmitted to the grooving disk drive shaft 61 via the first chain 107. 107a is a sprocket on the horizontal axis side of the input unit,
Reference numeral b is a sprocket on the grooved disk drive shaft side. The sprocket 107b on the grooving disk drive shaft side is rotatably fitted to the grooving disk drive shaft 61, and is connected to the grooving disk drive shaft 61 via a grooving clutch 108 so that transmission can be turned on and off. There is.

Further, a different sprocket 109a is formed integrally with the sprocket 107b on the side of the grooving disk drive shaft. The sprocket 109a and the sprocket 109b rotatably attached to the central planting device attachment shaft 81 (2). The second chain 109 is stretched over. Further, the third chain 110 is stretched between a sprocket 110a integrally formed with the sprocket 109b and a sprocket 110b attached to a planting device drive shaft 111 rotatably supported by the seedling table drive unit 53. Through these second and third chains 109 and 110,
The rotation of the input part horizontal shaft 105 is transmitted to the planting device drive shaft 111. The sprocket 110b of the planting device drive shaft is rotatably fitted to the planting device drive shaft 111, and is connected to the planting device drive shaft 111 via a fixed position clutch 112 so that transmission can be turned on and off. . The fixed position clutch 112 is
When the clutch is disengaged, the planting devices 80, ... Stop operating at fixed positions.

The planting device drive shaft 111 is a seedling table drive unit 53.
And a transmission pipe 54, 54 and a planting device transmission part 55, 55, which are shafts penetrating the inside of the planting device drive shaft. The sprockets 114a are attached to the central part and both left and right ends of the planting device drive shaft.
(1, 2, 3) and each planting device mounting shaft 81 (1, 2, 3)
Through the fourth chain 114 (1, 2, 3) stretched on the sprocket 114b (1, 2, 3) attached to
It is transmitted to 2, 3).

The seedling table driving section 53 is provided with a lead cam shaft 116 and a lateral movement rod 78 which constitute a seedling table reciprocating device. The lead cam shaft 116 is a shaft in which a spiral groove 117 is formed on the outer peripheral portion, and a lead claw 119 of a lead metal 118 fixedly attached to the lateral movement rod 78 is engaged with the groove 117. When the lead cam shaft 116 rotates, the lead metal 118 moves in the axial direction along the groove 117, whereby the seedling mounting base 70 is reciprocated left and right, and the seedlings on the seedling mounting base are moved to the seedling taking ports 76, .... It is supplied sequentially.

The lead cam shaft 116 is composed of a plurality of sets (three sets in this example) of non-equal diameter gears and a lateral movement amount switching speed device 121.
Is transmitted from the planting device drive shaft 111 via. When the combination of the gears of the lateral movement amount switching device 121 is changed, the distance over which the seedling table 70 laterally moves while the planting devices 80, ... Operate once, changes. Therefore, the number of seedlings taken per one step of the seedling table is changed. Will switch. In this example, the number of seedlings can be switched to three levels.

The extension shaft 12 of the lead cam shaft 116 is also used.
3, 123 are projected outside the case, and seedling feeding arms 124, 124 are attached to the ends thereof. The seedling feeding arms 124, 124 are constantly rotating together with the lead cam shaft 116, and when the seedling placing table 70 reaches the end portion of the left and right strokes, one of the left and right seedling feeding arms 124 is a passive arm on the seedling feeding belt side (not shown). ), The seedling feeding belt 85,
... is moved in a predetermined direction by a predetermined amount.

The planting work machine 4 is constructed as described above. Looking at the overall arrangement, the input section 51 is on the front side of the seedling stand 70, the L-shaped section 52 is on the lower side, and the seedling stand drive section 53 is on the rear side. The transmission case 50 is provided so as to be positioned, the grooving disks 60, ... Are provided at substantially the same position in the front and rear as the input section 51, and the planting devices 80 ,. There is. Seedling table drive unit 5 with built-in reciprocating device for seedling table
By arranging 3 on the rear side of the seedling mount 70, the groove grooves 60, ... Can be provided close to the seedling mount 70. Therefore, the grooving disk 60,
The distance between the planting device 80 and the planting device 80 becomes short, the seedlings are planted accurately in the groove for transplanting seedlings, and the total length of the no-tillage working machine 1 is shortened, resulting in a compact and well-balanced configuration. ing.

When carrying out the planting work, the planting work machine 4 with the seedlings placed on the seedling platform 70 is lowered to the working position,
The traveling vehicle body 2 is started while driving each part of the planting work machine 4. While the sleds 90, 90 slide on the surface soil surface, the planting work machine 4 moves, and first, the 6 grooves for seedling transplantation are formed on the surface soil surface of the field by the grooving disk 60 ,.
The planting rods 80 of the planting device 80, one by one, receive the seedlings supplied to the seedling take-off ports 76, ...

In the case of no-till transplantation, since the field is hard, the steering wheel operation may be easily taken due to the unevenness of the surface soil, and the traveling vehicle body may sway to the left or right.
Since the yawing mechanism is provided, the planting work machine 4 advances straight and the seedlings are planted correctly in the groove for transplanting seedlings.

[0029]

As described above, in the no-tillage transplanter according to the present invention, since the left and right reciprocating device of the seedling mounting table is provided on the rear side of the seedling mounting table, the seedling mounting table and the planting table are planted. Since the attachment device can be provided close to the traveling part, the total length of the machine body can be shortened and the weight balance is improved.

[Brief description of drawings]

FIG. 1 is a side view of a no-tillage transplanter.

FIG. 2 is a plan view of a no-tillage transplanter.

FIG. 3 is a side view of the planting work machine.

FIG. 4 is a plan view of the planting work machine.

FIG. 5 is a perspective view of a transmission case.

FIG. 6 is a side view of a transmission case.

FIG. 7 is a transmission system diagram of the planting work machine.

[Explanation of symbols]

 1 No-tillage transplanter 2 Traveling car body 3 Lifting link device 4 Work machine with planting 50 Transmission case 53 Seedling table drive unit (seedling table reciprocating device) 60 Grooving disk (grooving device) 70 Seedling table 80 planting Attached device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Niiyama, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. Company Engineering Department (72) Inventor Hisashi Kamiya 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Inventor Takashi Suzuki, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A grooving device that forms a groove for transplanting seedlings on the surface soil surface of an unplowed field, and by placing the seedlings and reciprocating left and right, the placed seedlings are determined one by one. In the no-tillage transplanter, which comprises a seedling mounting table to be supplied to the seedling collecting position and a planting device for planting seedlings supplied to the seedling collecting position by the seedling mounting table in the groove for transplanting the seedling. A no-tillage transplanter, wherein a groove device is provided in front of the seedling placing table, and a reciprocating device for reciprocating the seedling placing table left and right is provided on the rear side of the seedling placing table.