JPH07143807A - Seedling planting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Make it easy to perform maintenance and inspection of the extrusion cam in the planting case, and prevent the seedling planting work while the extrusion cam is worn or damaged. so,
Allow good planting of seedlings. [Structure] The rotating case 22 so that the planetary gears 31 and 31 rotate around the sun gear 29 while maintaining a similar posture.
And a planting case 35 attached to a mounting member 60 disposed on the side of the rotating case 22.
In the seedling planting device for picking out one seedling of each stock from the seedlings placed on the seedling mounting table 19 while the seedling nails 39, 39 of FIG. The pushing cams 36, 36 for moving the pushing claws 38a up and down on the side are housed in the planting cases 35, 35. When the planting cases 35, 35 are removed from the mounting members 60, 60, the planting cases 35.
5, the rotation case 22 side of the planting case 35, 35 is attached so that the extrusion cam 36, 36 appears.
・ A seedling planting device that is detachably fixed to 60.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called rotary type seedling planting device in which a rotary case is provided with a plurality of planting cases each having a planting claw.

[0002]

2. Description of the Related Art As a conventional technique of this kind, as shown in Japanese Patent Publication No. 49-31773, a rotary type is used in place of a crank type seedling planting device in order to reduce vibration and improve efficiency. It is proposed to use the seedling planting device of. Then, the present seedling planting device employs a configuration in which the pushing claw is pushed down when the planting claw comes into the field at the lower end while the planting claw is turning, and the retained seedling is pressed against the cultivated soil. Therefore, the amount of vertical movement of the push-out pawl and the timing of the movement are important, and these factors largely depend on the shape of the push-out cam. In other words, since the extrusion cam affects basic performance such as the inclination of seedlings to be planted and the occurrence of floating seedlings, regular maintenance inspection is required, and if this is worn or damaged, replacement is required. Since the maintenance and inspection of the extrusion cam is not considered at all, it is difficult to perform maintenance and inspection of the extrusion cam, and the seedling planting work is carried out while it is worn or damaged, which hinders the seedling planting work. There was a situation where it was not possible to plant such seedlings.

[0003]

According to the present invention, in order to solve the conventional problems, the planetary gears 31, 31 are the sun gears 29.
The planting case 3 attached to the mounting members 60, 60 provided on the rotating case 22 so as to rotate around the same while maintaining the same posture.
In the seedling planting device for picking out one seedling of each stock from the seedlings placed on the seedling placing table 19 while the 5.35 planting nail 39.39 is turning, the planting nail 39. The pushing cams 36, 36 for moving the pushing claws 38a up and down on the tip side of 39
Are housed in the planted case 35, and the planted case 35
When the 35 is removed from the mounting member 60/60, the rotation case 22 side of the planting case 35/35 is attached / detached to / from the mounting member 60/60 so that the inside of the planting case 35/35 is opened and the extrusion cam 36/36 appears. This is a seedling planting device characterized by being fixed freely.

[0004]

In the seedling planting device constructed as described above, each of the planting cases 35. 3 with the rotating case 22 rotates.
5 turns in the same posture. Then, by turning the respective planted cases 35, 35, the respective planted claws 39, 39 take one seedling from the seedlings (mat seedlings) placed on the seedling placing table 19 and descend to remove the mud. Inside by the action of the pushing cam 36, the pushing claw 38a
Move downward and plant the seedlings by pressing them into the mud.

Then, when carrying out maintenance and inspection of the extrusion cam 36, the planting case 35 is removed from the mounting member 60. Then, the planted case 35 is opened on the side of the rotating case 22 and the extrusion cam 36 therein appears. As described above, according to the present invention, when the planting case 35 is removed from the mounting member 60, the wall of the planting case 35 on the rotating case 22 side is removed, and the inside thereof is opened and extruded. Cam 3
Since 6 appears, the maintenance and inspection of the extrusion cam 36 can be easily performed, and it is possible to prevent the seedling planting work from being carried out while the extrusion cam is worn or damaged. Can be planted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the traveling vehicle body 1 to the link 1
5 is projected rearward, and a seedling planting device 13 is attached to the rear end of the plant to form a riding type planting plant. The traveling vehicle body 1 is configured as follows. A pair of front and rear wheels 2 and 3 respectively
Are arranged in the front and rear, and after the power of the central prime mover 4 is changed in the transmission case 8, the power is transmitted to the front wheels 2 via the transmission shaft 9 and to the rear wheels 3 via the transmission shaft 10, and these are transmitted to the paddy field on the paddy field. It rotates so that the traveling vehicle body 1 is propelled. When the post 7 extends upward from the tip of the machine body and the handle 6 above it is operated, the front wheels 2 are steered. A seat 5 is provided on the prime mover 4.

A mounting frame 17 is provided at the rear end of the link 15 and can be moved up and down by the hydraulic device 16.
The seedling planting device 13 is configured as follows. The central front end of the transmission case 18 is attached to the attachment frame 17 by a rolling shaft in the front-rear direction. A seedling stand 19 is provided above the transmission case 18 in a forward tilted manner, and is configured to reciprocate left and right. As shown in FIG. 2, the upper surface of the seedling mounting table 19 is partitioned by the front and rear side walls 20 ...
Five mat seedlings are placed side by side on 9a to 19e. The seedling receiving plate 21 having an L-shaped cross section has a seedling mounting table 19
Is fixed to the transmission case 18 below the seedlings, and the seedling mounting surfaces 19a-1
The end of the mat seedling on 9e reciprocates left and right on this seedling receiving plate 21. Five outlets 21a to 21e
Are provided on the seedling receiving plate 21 at equal intervals, and the planting nails 3 described later are provided.
9 ... passes from top to bottom. 5
A set of planting tools 34 ... Is arranged after each of the outlets 21a to 21e to cut off the end of the mat seedling and plant it in the mud below. The central float 51 and the pair of left and right side floats 52, 52 are arranged under the transmission case 18, and the traveling vehicle body 1 slides on a mud surface to move the planting device 34.
It is designed so that the mud for planting seedlings will be prepared in advance. Then, the power of the prime mover 4 reaches the inside of the transmission case 18 via the PTO shaft 11 and the transmission shaft 12, and the seedling mount 19 and the planting equipment 34 ... Are driven as described above. The lever 14 is attached to the post 7, and its operation pulls the wire 50,
A clutch 45 in the transmission case 18 interrupts the transmission power. Lever 58a, 58b is seedling planting device 1
3 is provided so that the wires 59 ... Are pulled and the power to the plant attachment 34 ...

Vertical portions 18a and 18b of the transmission case 18
18c extends rearward under the seedling receiving plate 21, and the aforementioned planting implements 34 are arranged at the respective rear end portions thereof. The following is
Since the left and right are symmetrical or the same, one of them will be described. As shown in FIG. 4, a vertical portion 18a of the transmission case 18 is formed.
A drive shaft 23 is provided laterally at the rear end, and the rotation of the prime mover 4 is transmitted through the toothed ring 27 and the gears 26, 25, 24, and rotates counterclockwise in FIGS. 1 and 3. ing. The rotating case 22 has a key 23a on the tip of the drive shaft 23.
It is fixed at. A sun gear 29 is rotatably attached to the drive shaft 23, and a boss 29 a extending from the sun gear 29 to the transmission case 18 side has a hole 28 in a metal 28 integral with the transmission case 18.
Even if the drive shaft 23 rotates while being eccentrically fitted into the shaft a, the sun gear 29 does not rotate. A pair of planetary gears 31 and 31 are arranged at symmetrical positions on the outer peripheral portion of the rotating case 22, and the intermediate gears 30 and 30 mesh with the sun gear 29, and the number of teeth of all the gears 29, 30 and 31 is With the same configuration, when the rotating case 22 makes one counterclockwise rotation, the rotating case 22 makes one rotation in the opposite direction and maintains the same posture with respect to the ground. The pitch circles of the respective gears 29, 30, 31 are eccentric with respect to the center of rotation, and the planetary gears 31, 31 do not rotate with respect to the ground when turning around the sun gear 29, but their axes It is designed to swing around the heart.
The pair of cylinder shafts 31a, 31a are respectively associated with the planetary gears 31,
A mounting member 60.6 extending from the outside of the rotating case 22 and having a flange-shaped mounting portion 60b.
0 is firmly fixed by the cotter 40. The pair of planting cases 35, 35 have mounting portions 35a, 3 which project on the side of the rotating case 22 with respect to the locus i of the planting claws 39, 39.
5a is provided, and the mounting portions 35a and 35a are joined to the respective mounting portions 60b and 60b to form the boss portions 60a and 6a.
0a is fitted into the wall surface of the planted case 35, 35,
Tightened with bolts 61 ...
Are fixed to the mounting members 60, 60.

As shown in FIG. 3, a planting claw 39 is attached to the planting case 35, and the push-out claw 38a is configured to move up and down at the tip end thereof to form the planting tool 34. There is. That is, the planting claw 39 is fixed downward to the surface of the planting case 35 on the seedling placing table 19 side, and the pushing claw 38a fixed to the lower end of the pushing rod 38 moves up and down at its lower end. It's done. The push rod 38 is pushed down by the spring 42. As shown in FIG. 4, the cam shaft 32 is arranged at the center of the cylindrical shaft 31a and the planetary gear 31, one end of which is fixed to the rotating case 22 by the plate 33, and the extruding cam 36 is fixed to the other end. The lever 37 is attached to the planting case 35 so as to swing around the pin 41, and both ends of the lever 37 are pushed by the pushing cam 36.
When the tip of the planting claw 39 turns counterclockwise through the trajectory a in FIG. 3, it swings by the extrusion cam 36 after passing the lower end of the trajectory a. The lever 37 compresses the spring 42 and pulls up the pushing claw 38a,
When passing through the seedling intake 21a and reaching the lower end of the trajectory A, the lever 37 separates from the protruding portion of the pushing cam 36, and the spring 42 pushes down the pushing claw 38a.

As the rotating case 22 rotates, the planted cases 35, 35 turn in the same posture. Then, each of the planting cases 35, 35 is swung to produce each of the planting claws 39.3.
9 is taken from the seedlings placed on the seedling placing table 19 (mat seedlings) one by one when passing through the seedling inlet 21a, and descends, by the action of the extrusion cam 36 in the mud at the lower end. Push claw 38
a moves downward, and the seedlings are pressed into the mud and planted.

Further, as shown in FIG. 4, the side surfaces 35a, 35a of the pair of planting cases 35, 35 have the planting claws 39, 39.
Is located closer to the rotating case 22 than the rotating surface of No. 1, and a part thereof is projected, and the planting case 35, 35 surface behind the planting claws 39, 39 when viewed from above is configured to be largely cut away. ing. Then, when the pair of planting cases 35, 35 turn through the locus A in FIG. 3, the tip of the planting claw 39 in the ascending stroke is the above-mentioned lack of the planting case 35 in the descending stroke. It is designed to pass through the embedded part.

[0012] In particular, when performing maintenance inspections of the extrusion cam 36 before and after the seedling planting season and after the completion thereof, the bolts 61 and 61 are loosened and pulled out, and the planting case 35 is opposite to the rotating case 22. When pulled to the side, the boss 6
The planting case 35 is removed and removed from 0a, the inside of the planting case 35 is exposed, and the extrusion cam 36 in it appears. Therefore, it is possible to easily perform maintenance and inspection of the extruding cam 36 that appears in this way, and prevent the seedling planting work from being carried out while the extruding cam is worn or damaged, which is a good seedling. Can be planted.

[Brief description of drawings]

FIG. 1 is an overall side view of a riding type seedling planting machine.

FIG. 2 is a plan view of a seedling planting device.

FIG. 3 is an enlarged partial cross-sectional side view of the seedling planting device.

FIG. 4 is a cross-sectional plan view of the seedling planting device.

[Explanation of symbols]

19 seedling stand 22 rotating case 29 sun gear 31 planetary gear 35 planting case 36 extrusion cam 38a extrusion claw 39 planting claw 60 mounting member a trajectory of tip of planting claw

Claims (1)

[Claims] 1. A mounting member 60, which is provided on the rotating case 22 so that the planetary gears 31 and 31 rotate around the sun gear 29 while maintaining a similar posture, and is arranged on the side of the rotating case 22. Planted case 35 attached to 60
In the seedling planting device for picking out one seedling of each stock from the seedlings placed on the seedling mounting table 19 while the 35 seedling nails 39, 39 are turning, the seedling nails 39, 39 The pushing cams 36, 36 for moving the pushing claws 38a up and down at the tip side are housed in the planting cases 35, 35, and the planting cases 35.
When 5 is removed from the mounting members 60, 60, the planted case 35
The seedling planting device characterized in that the rotating case 22 side of the planting case 35, 35 is detachably fixed to the mounting member 60, 60 so that the inside of the plant 35 is opened and the extrusion cam 36, 36 appears.