JPH0538203A - Seedling planting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent uneven wear of the gear that transmits power to the planting rod and prevent the backlash from expanding, thereby improving the seedling planting posture. A first rotating case mounted on a transmission case for rotating a second rotating case at its tip, and a sun gear stationary in the first rotating case and a planet fixed to the second rotating case. Two intermediate gears are provided in front of and behind the gear.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a seedling planting machine for field operation, and is intended to improve the posture of planting seedlings by preventing uneven wear of gears that transmit power to the planting rod.

[0002]

2. Description of the Related Art In a field-operated seedling planting machine, the posture of planting seedlings affects the shape of balls such as lettuce and cabbage. Have secured. For that purpose, a means is provided for turning the second turning case provided with the implanting rod so as to extend and contract at the tip of the first turning case.

[0003]

That is, since the second turning case makes an irregular movement ahead of the first turning case,
The gears in the first swivel case are subject to a fluctuating load, which is unevenly worn, and the orbit of the tip of the implanting rod may be disturbed. Since the second turning case turns next to the first turning case, each lateral width is limited, and the width of the gear is also limited.

[0004]

In order to solve the above-mentioned problems, the present invention is directed to a first turning case 10 mounted on a transmission case 6 and revolving, and a second turning case rotating around the tip of the first turning case 10. The case 16 and the implanting rod 25 that always swivels in the same posture at the tip of the second case 16 are provided, and the sun gear 9 that is fixed to the revolution shaft 8 in the first swivel case 10 and is stationary. The seedling planting device is characterized in that the two intermediate gears 14, 14 are provided in front of and behind the planetary gear 13 fixed to the two cases 16.

[0005]

Since the present invention is constructed as described above, when the first turning case 10 is revolved by the power of the engine or the like, the sun gear 9 and the planetary gear 13 that are stationary at the center of the revolution shaft 8 of the first turning case 10 are rotated. The second swivel case 16 swivels while taking a shape such that the second swivel case 16 expands and contracts. That is, when the first turning case 10 is oriented vertically from the revolution shaft 8,
When the second swivel case 16 extends further upward and downward from the tip thereof, and the first swivel case 10 faces forward and backward,
By contracting the second swivel case 16 into a folded shape, the implanting rod 25 at the tip of the second swivel case 16 takes a vertically long swivel path.

[0006]

[Effect] Then, the force for rotating the second swivel case 16, that is, the planetary gear 13, is generated by the sun gear 9 and the intermediate gear 1.
It is transmitted by the meshing of 4, 14 and the planetary gear 13,
Two intermediate gears 1 for the pair of sun gears 9 and planetary gears 13.
Since 4 and 14 are engaged with each other at the same time in the front and rear, the surface pressure in each tooth profile for transmitting the power from the sun gear 9 to the planetary gear 13 is 2 as compared with that of the conventional intermediate gear 14 having one sheet. It became one-third.

Therefore, the respective gears 9, 13, 14
The uneven wear in the steel was significantly reduced. According to the result of the experiment, it is less than one fourth of the conventional one. As a result, the disturbance of the orbit of the implanting rod, which was caused by the backlash due to the uneven wear of the gears 9, 13, and 14, is remarkably reduced, and the tip of the implanting rod is bitten at the end of the seedling mounting table. It no longer disturbs the seedling planting posture.

[0008]

Embodiments of the present invention will be described below. Figure 1
As described above, the pair of left and right wheels 1 and 1 are located across the ridges 2 and are driven by the engine 3 to propel the machine body 4. A transmission case 6 extends obliquely upward from the rear gear box 5. The transmission case 6 is located on the left side of the center line of the machine body when viewed from above. A seedling stand 7 on which the collective seedlings are placed is provided on the machine body 4, and the engine 3
It is designed to reciprocate left and right by rotating.

As shown in FIG. 2, the revolution shaft 8 is fixed to the transmission case 6 and extends rightward, and the sun gear 9 is fixed to the tip thereof. A first swivel case 10 is provided so as to house the sun gear 9 and swivel around the revolution shaft 8. The toothed wheel 11 is rotatably attached to the revolution shaft 8 in the transmission case 6, the right end thereof is fixed to the left side of the first turning case 10, and when the toothed wheel 11 is rotated by the power of the engine 3,
The first swivel case 10 revolves around the revolution shaft 8.

A shaft 12 is fixed to the end of the first swivel case 10 so as to project to the left, and a planetary gear 13 is rotatably attached to this. As shown in FIG. 3, two intermediate gears 14 and 14 are provided at the front and the rear with respect to the rotation direction, and are engaged with the sun gear 9 and the planetary gear 13 at the same time. The number of teeth of the planetary gear 13 is halved with respect to the number of teeth of the sun gear 9. Further, although the respective intermediate gears 14, 14 are cantilevered by the first turning case 10 by the respective shafts 15, 15, they may be supported by both sides.

One end of the second turning case 16 is rotatably attached to the shaft 12, and the left side thereof is fixed to the planetary gear 13. Therefore, the first swivel case 10 in FIG.
The second turning case 16 is adapted to turn counterclockwise at the tip of the second turning case 16 when it turns clockwise about. Then, when the first turning case 10 makes one rotation, the second turning case 16 makes two rotations with respect to the first turning case 10, but as described above, since the respective rotating directions are opposite, the second case 16 makes one rotation of rotation with respect to the transmission case 6.

The implant shaft 17 is rotatably supported by the other end of the second swivel case 16 so as to project rightward, and a gear 18 fixed to this is fixed to the shaft 12 via an intermediate gear 19. It meshes with the gear 20. The cam body 21 is provided outside the implantation shaft 17 and is fixed to the right side surface of the second swivel case 16. An implant case 22 is provided so as to cover the cam body 21, and is fixed to the end of the implant shaft 17. The number of teeth of the gear 18 is made twice as many as the number of teeth of the gear 20, and even if the second turning case 16 rotates around the revolution axis 8 while rotating as described above, the implantation case 22 remains the same. It is designed to turn while maintaining a posture. Then, when the implantation case 22 does not rotate and makes one revolution around the revolution shaft 8, the cam 21 makes one revolution with respect to the implantation case 22 therein.

As shown in FIGS. 2 and 4, a vertical opening / closing shaft 23 and an extrusion shaft 24 are attached to the implant case 22, and a pair of plates 25a and 25b are fixed to the implant case 22 and the open / close shaft 23, respectively. As a result, the implantation rod 25 is constructed. A cam follower 27 pressed by a spring 26 is fixed to the opening / closing shaft 23, and the tip of the cam follower 27 comes into contact with the opening / closing cam 21a of the cam 21 body.
, The seedbed for one plant on it is picked up, and the seedlings are separated from the plate 25a (open) by reaching the bottom end. The push-out shaft 24 is slidably attached, and a push-out tool 28 is fixed to the lower end thereof. A lever 29 is provided on the implantation case 22 so as to rotate around a horizontal shaft 30, one end of which is in contact with the extrusion cam 21b of the cam body 21, and the other end is engaged with the upper end of the extrusion shaft 24. When the implant case 22 is at a high position in the middle of turning, the spring 42 is compressed to push the pushing tool 24.
At the same time that the plate 25b is opened as described above, the pushing tool 24 descends to push down the seedbed.

As shown in FIG. 5, the revolution shaft 8 and / or the shaft 1
2 the cams 31 and 3 inside or outside the first turning case 10
Lever 3 fixed to 2 and attached to the first swivel case 10
3, 34 are pressed by the springs 35 and 36, and when the planting rod 25 passes the end of the seedling mounting table 7 and / or when the planting rod 25 reaches the lower end, the springs 35 and 36 act strongly. When the tooth profiles of the gears 9, 11, 13 are in strong contact with each other on a certain side, the influence of backlash of each gear disappears.

As shown in FIG. 1, a grooving device (not shown)
Then, a groove is formed on the upper surface of the ridge 2, and the planting rod 25 transplants the seedling into the groove, and then the pair of left and right crushing wheels 37, 37 is used to backfill the soil. As shown in FIG. 6, the compression wheel 37 is preferably composed of a pair of wheel bodies 38a and 38b that can slide in the axial direction so that the width can be adjusted to correspond to the hardness of the ridge soil. Further, as shown in FIG. 7, the compression wheels 37, 37 act on the seedling 39 by inclining it so that its cylindrical surface has a V-shape at the lower end. Then,
The ridges 40, 40 are formed at both ends of the ridge 2 and may hold rainwater. In order to prevent this, scrapers 41, 41 should be provided as shown in FIG. 8 and the ridges 40, 40 should be scraped off.

[Brief description of drawings]

FIG. 1 is a side view of a seedling planting machine according to the present invention.

FIG. 2 is a cutaway plan view of a portion thereof.

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

FIG. 4 is a partial cutaway side view thereof.

FIG. 5 is a side view corresponding to FIG. 3 with members added.

FIG. 6 is a cutaway front view of the compression wheel.

FIG. 7 is a rear view of a conventional type showing the relationship between the ridges and the compression wheel.

FIG. 8 is a rear view of the improved version described above.

[Explanation of symbols]

 6 Transmission Case 8 Revolution Shaft 9 Sun Gear 10 First Swivel Case 13 Planetary Gear 14 Intermediate Gear 16 Second Swivel Case

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Takemoto No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. Technical Department (72) Inventor Tamaki Kubo 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A first swivel case 10 mounted on a transmission case 6 and revolving, a second swivel case 16 rotating around the tip of the first swivel case 10, and a posture which is always the same at the tip of the second case 16. A planetary gear 1 fixed to the revolution shaft 8 in the first turning case 10 and stationary in the first turning case 10 and fixed to the second case 16.
A seedling planting device, characterized in that two intermediate gears (14, 14) are provided in front of and behind (3).