JPH05260812A - Manuring rice transplanter - Google Patents

Abstract

PURPOSE:To widen a gap between transmission frame pipes and a seedling placing base without changing arrangement of a transmission mechanism of planting part by making the transmission frame pipes eccentric in the opposite side to the seedling placing base based on a planting device driving shaft. CONSTITUTION:Power transmitted to an input shaft 58 is transferred through bevel gears 59 and 60 to a plant device driving shaft 62. Transmission frame pipes 41 are made eccentric in the opposite side to a seedling placing base based on the planting device driving shaft. A gap between the transmission frame pipes and the seedling placing base is enlarged by the eccentricity and degree of freedom of a fertilizer transporting pipe is increased to normally operate a float.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilized rice transplanter having a fertilizer tank provided between a cockpit of a traveling vehicle and a planting section.

[0002]

2. Description of the Related Art A passenger fertilizer paddy planting machine equipped with a planting part on a lifting link device mounted on the rear part of a traveling vehicle includes a fertilizer tank and a fertilizer feeding device for feeding a predetermined amount of fertilizer from the fertilizer tank. The feeding unit is installed between the cockpit of the traveling vehicle and the planting section, and the fertilizer discharging section facing the field is installed in the grooving device attached to the float of the planting section so that the fertilizer discharging unit can be connected to the fertilizer discharging section. There is a fertilizer carrier pipe that has flexibility to transfer the fertilizer. The planting section of this riding fertilizer planter is a central case that is transmitted from a traveling vehicle, a transmission frame pipe that projects from the central case to the left and right, and a rear portion that extends rearward from the tip of the central case and the transmission frame pipe. A planting part frame is configured with the branching case, and a seedling placing table is provided above the planting part frame so that the front part is inclined so that the front part is in a higher position, and the seedling placing table is provided at the rear end part of the branching case. A planting device for planting seedlings on the table in the field is provided. The fertilizer carrier pipe is inserted between the transmission frame pipe and the seedling table.

[0003]

Conventionally, the transmission frame pipe and the seedling table are relatively close to each other, and the space in which the fertilizer transport pipe can freely move is small. Therefore, when moving up and down the planting section, the transmission frame pipe contacts the fertilizer transport pipe,
There is a problem that the operation of the float connected to the fertilizer transport pipe is hindered and the soil cannot be properly grounded.
Further, when the float also serves as a sensor for detecting the height of the field scene, there is a problem that the elevation control and rolling control are also adversely affected.

[0004]

In order to solve the above problems, the present invention has the following constitution. That is, the fertilizer transplanter according to the present invention is a planting part frame having a transmission frame pipe having a planting device drive shaft arranged in the left-right direction, and a seedling which is provided above the planting part frame and is inclined forward and backward. A mounting table and a flexible fertilizer transport pipe for transporting fertilizer from a fertilizer tank provided at the top of the machine to a fertilizer discharge section provided near the field scene are provided between the transmission frame pipe and the seedling table. In the fertilized rice transplanter inserted, the transmission frame pipe is eccentric to the opposite side of the seedling table with respect to the drive shaft of the planting device.

[0005]

[Function] Since the transmission frame pipe is eccentric to the planting device drive shaft on the side opposite to the seedling mounting table, the distance between the transmission frame pipe and seedling mounting table is widened accordingly, and the degree of freedom of the fertilizer carrier pipe is improved. To do. As a result, the float operates normally, good ground leveling can be maintained, and accurate elevation control and rolling control can be performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments shown in the drawings will be described below. In this fertilized rice transplanter 1, a planting section 4 for 6-row planting is attached to a lifting link device 3 provided at the rear of the main unit 2 which is a traveling vehicle, and a fertilizer application device 5 is provided separately from this. ing.

The machine 2 includes a machine frame 6 having a rectangular shape in plan view, which is long in the front and rear, an engine 8 is installed at a position rearward of an intermediate portion of the frame, and a mission case 9 is installed in front thereof. A hydraulic continuously variable transmission (HST) 10 is arranged in the middle of the transmission case 9. Front wheel support case 1 on the side of the mission case 9
4 and 14 are provided so that they can be turned, and the front wheel 1 is attached to the lower end thereof.
5, 15 are locked. In addition, a rolling rod 17 is rotatably supported by a rolling shaft 16 protruding from the rear end of the frame 6, and the rear wheels 19 and 19 are attached to rear wheel support cases 18 and 18 integrally attached to both left and right ends thereof. It has been stopped. Floor step 20 for steering on these
Is installed, and the cockpit 21 is installed above the engine 8.

The engine output of the engine output shaft 8a is H
In ST10, the speed is appropriately changed and the transmission is transmitted to the mission case 9. Front wheel drive output, rear wheel drive output and planting part drive output are taken out from the mission case 9, and the planting part drive output is transmitted to the PTO shaft 23 and the fertilizer drive shaft 24 projecting to the rear end of the machine body.

The link device 3 includes a pair of left and right upper links 3 mounted on a link base 30 provided upright on the rear end of the main unit frame 6.
1, 31 and lower links 32, 32 are rotatably supported, and a connecting frame 34 is attached to the rear ends of these upper and lower links. The planting portion 4 is mounted in a rolling manner on a rolling shaft 35 protruding rearward from the connecting frame 34. A hydraulic cylinder 37, which is a driving means of the link device 3, has a base portion pivotally attached to the main body frame 6, and a tip end portion of a piston rod thereof is connected to a lower end portion of a swing arm 38 vertically extending from the base portions of the upper links 31, 31. Has been done. The hydraulic cylinder 3
When 7 is expanded and contracted, the connecting frame 34 is moved up and down while being held in a substantially fixed posture, and the planting part 4 attached to this is moved up and down.

The planting section 4 is, as shown in FIGS.
A central case 40 that is transmitted from the PTO shaft 23 via a universal joint, transmission frame pipes 41 and 41 projecting from both side portions of the central case, the central portion of the central case 40 and the tips of the transmission frame pipes 41 and 41. And a total of three branch cases 42, which extend rearward from the above-mentioned part, constitute a planting part frame, and a seedling table 44 is provided above the planting part frame so that the front side is inclined so that the front side is higher. In addition, a total of 6 sets of planting devices 45 are provided, one set on each rear side of each branch case 42.
The seedling table 44 is fixed to each of the branch cases 42, ... At the upper end of the seedling table frame 47 provided from the upper part of the central case 40 to the upper part of the center case 40. It is slidably supported right and left by the attached rail 49. The upper surface of the seedling mounting table 44 has the seedling mounting portions 44a corresponding to the number of planting rows,
The belt-type seedling feeding device 51, which feeds the seedlings on the table downward, is provided for each seedling mounting portion.
In addition, adjacent to the lower end of the seedling mount 44, the planting device 45,
A seedling receiving frame 53 having a seedling take-out port 52 corresponding to
Are provided integrally with the seedling stand support frame 47.

FIG. 4 is a sectional view of the planting part frame which is developed and shown. The central case 40 is an upper case 40a,
It comprises a lower case 40b and a connecting portion 40c, and transmission frame pipes 41, 41 are attached to both sides of the lower case 40b. An input shaft 58 is supported in the front and rear direction on the front surface side of the lower case 40a, and the power transmitted to the input shaft is transmitted through the bevel gears 59 and 60 to the lower case 40b.
Is transmitted to the planting device drive shaft 62 inserted through the transmission frame pipes 41, 41. The transmission frame pipes 41, 41 are eccentric with respect to the seedling table 44 with respect to the planting device drive shaft 62. The rear ends of the branch cases 42, ... Support the planting device mounting shafts 63 ,.
2, the sprocket 65 attached to 2 and the sprocket 66 attached to the planting device attachment shaft 63 ,.
7, ... are hung. A fixed position clutch 68 is provided on the mounting portion of the sprocket 65, and when the work is stopped, the planting devices 45, ... Stop operating at a fixed position.

The planting device 45 includes a pair of planting rods 7 mounted on a rotary case 70 which rotates around a planting device mounting shaft 63.
1, 71 are attached, and the planting rod is configured to move vertically while drawing a predetermined locus, and to sandwich the seedling supplied to the seedling take-out port 52 and plant it in a field scene. ing.

A counter shaft 80 is supported by the connecting portion 40c, and a roll cam shaft 81 is supported by the upper case 40a, and a pair of non-equal diameter lateral feed speed adjusting gears 83 from the planting device drive shaft 62 to the counter shaft 80 are supported. , 84, and further from the counter shaft 80 to the roll cam shaft 81 via any one of four sets of seedling number switching gears 85 (1 to 4) and 86 (1 to 4). It Roll cam shaft 8
Reference numeral 1 denotes a shaft in which a spiral groove 90 is formed on the outer peripheral portion, and an engaging metal 92 having a claw 91 that engages with the groove is slidably fitted around the engaging metal 92. A lateral movement rod 93 parallel to the roll cam shaft 81 is integrally provided on the engagement metal 92, and mounting plates 95 and 95 attached to both ends of the lateral movement rod are provided on the seedling table 4.
4 is fixed to the mounting plates 96, 96.

When the roll cam shaft 81 rotates, the engaging metal 92 moves along the groove 90, whereby the seedling table 4 is moved.
4 is reciprocated right and left, and the seedlings at the bottom are sequentially supplied to the seedling take-out port 52. When the seedling stand 44 reaches the end of the left and right stroke, the seedling feeding cam 97 attached to the roll cam shaft 81.
Engages with the passive cam 98 to operate the seedling feeding device 51, and the seedlings on the seedling table are transferred downward by one row. By optionally selecting the combination of the seedling collection number switching gears 85 (1 to 4) and 86 (1 to 4) and appropriately setting the rotation speed ratio of the roll cam shaft 81, the seedling table lateral feed 1 stroke The number of seedlings to be picked can be switched to 4 levels.

Below the planting part 4, a center float 100 is provided at the center and a pair of side floats 10 is provided on both left and right sides thereof.
1, 101 are provided, and groovers 102, ... Forming grooves for transplanting seedlings are attached at appropriate positions on both sides of these floats. Each float 100, 101, 101 has a float support rod 103 attached to the branch case 42 ,.
It is pivotally supported at the lower end of ... so that it can move up and down. A detection rod 10 for detecting vertical movement is provided at the front of the center float 100.
4, a hydraulic valve 105 for controlling the hydraulic cylinder 37 based on the vertical movement of the detection rod.
Is driven. For example, when the field scene becomes high and the front part of the center float 100 rises, the hydraulic valve 104 is driven in the direction in which the hydraulic cylinder 37 extends, and as a result, the planting part 4 rises. When the field scene becomes low, the operation is reversed.

The fertilizer application device 5 is provided with a fertilizer feeding unit 112 including a fertilizer tank 110 and a feeding device 111 for feeding a predetermined amount of fertilizer in the fertilizer tank at the rear part of the traveling vehicle 2 and a fertilizer discharge part 113 facing a field scene. The fertilizer feeding unit 112 and the fertilizer discharge part 11 are provided in the grooving device 102.
3 are connected by a fertilizer carrier pipe 114 having flexibility.
The fertilizer carrier pipe 114 is the transmission frame pipe 41 and the seedling stand 4
Threaded between 4 As described above, the planting device drive shaft 6
Since the transmission frame pipe 41 is eccentric to the seedling mounting table 44 with respect to 2, the movable range S of the fertilizer transport pipe 114 is wide. Therefore, the transmission frame pipe 41 does not come into contact with the fertilizer transfer pipe 114 when the planting part 4 is moved up and down. Since the position of the planting device drive shaft 62 is determined from the relationship with other parts, the planting device drive shaft 62 and the seedling mount 44
Although the distance between the plants cannot be changed, the planting device drive shaft 62
By eccentricizing the transmission frame pipe 41, the above effect is achieved. The fertilizer tank 110
Is shared by every two adjacent rows, and one fertilizer tank 110 and two feeders 111 constitute one set of fertilizer feeding unit 112. The feeding device 111 is transmitted from the fertilizing drive shaft 24.

The three sets of fertilizer feeding units 112, ... Are the air chambers 1 made of square steel pipes provided on the link base 30.
It is attached to 16. Air is supplied to the air chamber 116 from the blower 117 provided in the engine room,
Air is discharged from the air chamber into the fertilizer transport pipes 114, .... By supplying the warm air in the engine room to the fertilizer transport pipe 114, the fertilizer can flow in the pipe well, and the fertilizer can be prevented from solidifying in the pipe. Further, an air hose 119 connected to the air chamber 116 is guided forward, and the air discharge port 1 of the air hose is
19a is directed to the HST 10. Since the HST 10 is effectively cooled by the air discharged from the air discharge port 119a, the HST 10 efficiency is improved.

[0018]

As is apparent from the above description, the fertilizer transplanter according to the present invention can widen the distance between the transmission frame pipe and the seedling table without changing the arrangement of the transmission mechanism of the planting section. As a result, it is possible to prevent the float from constantly operating erroneously due to the movement of the fertilizer transport pipe that occurs when it contacts the transmission frame pipe.

[Brief description of drawings]

FIG. 1 is a side view of a fertilized rice transplanter that is an embodiment of the present invention.

FIG. 2 is a plan view of the fertilized rice transplanter shown in FIG.

FIG. 3 is a side view of a planting part.

FIG. 4 is a developed sectional view of a planting part frame.

5 is a view on arrow A in FIG.

[Explanation of symbols]

 1 fertilizer transplanter 2 traveling vehicle 3 link device 4 planting part 5 fertilizer applicator 41 transmission frame pipe 44 seedling mounting table 45 planting device 62 planting device drive shaft 110 fertilizer tank 113 fertilizer 114 fertilizer carrier pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seike Rihaku, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. (72) Inventor, Hisashi Kamiya, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hideyuki Kusama, No. 1, Yakura, Tobe-cho, Iyo-gun, Ehime (72) Invention Nomura Katsu No. 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A planting part frame having a transmission frame pipe containing a planting device drive shaft arranged in the left-right direction, and a seedling table which is provided above the planting part frame and tilts back and forth, In a fertilizer rice transplanter in which a flexible fertilizer transport pipe for transporting fertilizer from a fertilizer tank provided at the top of the machine to a fertilizer discharge part provided near the field scene is inserted between the transmission frame pipe and the seedling stand. The fertilizer transplanter, wherein the transmission frame pipe is eccentric to a side opposite to the seedling stand with respect to the drive shaft of the planting apparatus.