JPH03168011A - Seedling-planting transmission device of seedling transplanter - Google Patents

Abstract

PURPOSE:To maintain the high speed transplantation of seedlings and also perform the accurate taking-out and planting of the seedlings by engaging eccentric gears or non-circular gears with each other between a driving shaft interlocked with seedling-planting tools and a counter shaft interlocked with a lead cam shaft. CONSTITUTION:When a driving shaft 1 is interlocked with an input shaft 4 in a seedling planting process, each seedling-planting tool passes through a seedling-take-out opening downwardly for each rotation of the driving shaft 1. The engagement between an elliptic gear and eccentric gear 9, 10 is set to a low speed range at the stroke position of each seedling-planting tool for passing through the seelding-take-out opening so as to at a lower speed than the rotation speed of other-passing stroke positions (high speed rotation ranges). When the seedlings are transplanted, the number of the seedling-taking lateral movements of a seedling tank is thereby selected with change gears S1-S3 and the slower the rotation, the more the seedling-take-out number is and the less the number of each take-out seedlings is.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a planting transmission device for transmitting a seedling planting tool, a seedling tank, etc. of a seedling planting machine.

(Prior art and problems to be solved by the invention) Seedling planting in which seedlings with beds filled in a seedling tank are separated and transplanted while the seedling tank is moved with respect to a seedling planting tool. When using the device (a), when taking out bedded seedlings from the seedling tank with the seedling planting tool, the seedlings are not taken out correctly with the seedling planting tool, and the seedlings are taken out and the planting posture of the seedlings is disturbed. easy. In addition, when the seedling propagator takes out bedded seedlings from the seedling tank, there is a form in which the movement of the seedling tank is temporarily stopped, but not only is the transmission structure complicated, but the transmission is not smooth, and There tends to be a limit to speeding up.

(Means for Solving the Problems) This invention provides a seedling tank that accommodates seedlings with a bed and is transmitted back and forth in the horizontal direction, and a seedling that takes out the seedlings with a bed supplied from this germ tank and plants them in the soil. In the 6] planting machine having a planting tool, an eccentric gear or a The structure of the seedling planting transmission device is characterized in that circular gears are engaged to slowly interlock the lateral movement of the seedling tank when the seedling planting stand takes out bedded seedlings from the seedling tank.

(Function) When planting seedlings, the seedling planting tool is moved up and down between the seedling outlet of the seedling tank and the soil surface for planting seedlings by the transmission rotation of the drive shaft. At the same time, the lead camshaft is rotated from the drive shaft via an eccentric gear or a non-circular gear, and the seedling tank is reciprocated in the lateral direction. The bedded seedlings housed in the fungus tank are moved laterally together with this seedling tank, and during this movement, a predetermined bedded seedling is separated by a seedling planting tool that acts on the seedling take-out port, and is placed in the lower part. Transplanted to the soil surface.

In the action of taking out bed-attached seedlings from the seedling tank using such a seedling planting tool, the transmission to the seedling tank is via an eccentric gear or a non-circular gear, so that the seedling planting tool removes the bed-attached seedlings from the fungus tank. When taking out the seedlings, assuming that the operating speed of the seedling planting tool is constant, the lateral movement speed of the bacteria tank is the speed of the lateral movement of the seedling tank during the operation stroke of the seedling planting tool other than when taking out the seedlings. It is transmitted at a slower speed.

(Effect of the invention) The present invention has a drive shaft that interlocks the seedling-planting goose in this way,
By meshing an eccentric gear or a non-circular gear between the lead cam shaft and the counter shaft that interlocks the lead cam shaft, each bed-mounted sprouting device is・The moving speed of the seedling tank is slow during the process of taking out bedded seedlings between the benches, and the moving speed of the seedling tank is high during processes other than taking out, and although the speed of the 100 tanks repeats fluctuations, continuous movement is maintained. Therefore, it is possible to maintain high-speed seedling planting, and to move the bed-attached seedlings at a low speed when taking out the seedlings, thereby making it possible to accurately take out and plant the seedlings. or. Transmission can also be maintained smoothly.

(Embodiment) In the embodiment shown in the drawings, as shown in Figs. The input shaft 4 is connected to one end of the drive shaft l by a gear, and the rotation ratio is 2:
A planting shaft 6 that transmits the seedling planting tool through the subrockets 7 and 8 of 1 and the chain 5 is interlocked. Between the drive shaft 1 and the counter shaft 2, gears 9 and 10 with a rotation ratio of 1:1 are engaged and interlocked, and between the counter shaft 2 and the lead cam shaft 3,
Shift key 12 that can be moved freely in the axial direction on shift shifter 1l
The transmission gears 81 to 81 to S, which are engaged with the transmission key l2, are meshed with the transmission gears S1S2, S, which are shifted in multiple stages.
, and the seedling tank can be moved laterally while being transmitted at variable speeds. The lid cam shaft 3 has a spiral reed formed at a predetermined pitch in the reciprocating direction.
The moving metal 15 having a guide piece guided by the lead groove 13, 14 is fitted onto the outer periphery of the lead cam shaft 3 and moved in the axial direction.
In this configuration, a seedling tank connected to both ends of a moving rod l6 connected to the seedling tank 5 and moved integrally is moved over a predetermined width of the seedling tank.

Fig. 2 shows the case where transmission is performed by circular eccentric gears 9 and 10, and the gear ratio is set to l:1, and Fig. 3 shows the case where the transmission is performed by circular eccentric gears 9 and 10.
10, and the gear ratio is set to 1=1.

FIG. 4 shows a seedling planting machine having such a seedling planting transmission device. A planting power transmission device is installed inside, and the bottom of the seedling tank 18 is integrally attached to the moving rod 16, which is interlocked so as to reciprocate in the lateral direction. This seedling tank l8 is configured to be inclined back and forth and partitioned at predetermined intervals in the horizontal direction to accommodate bedded seedlings A, and the sloped lower end is released so that it is not connected to the seedling planting transmission case l7. It is made to slide on a guide frame 19 along the lateral direction fixed at a fixed position. This guide frame 19 has a seedling planting tool 20 at a certain position.
A seedling take-out port 2l is provided to operate the seedling take-out port 2l, and when the fungus planting R20 moves down the seedling take-out port 2l, the bed-attached seedlings A supplied from the seedling tank 18 and guided along the guide frame l9 are separated. and take it out in the f direction. Reference numeral 22 denotes a feeding belt located at the bottom of the seedling tank 18, which temporarily moves laterally to receive the bottom of the bedded seedlings A and feeds out intermittently toward the guide frame 19. It is strung by a rotatable booth concentrically with the

Further, a guide 23 is provided below the guide frame 19 toward the soil surface, and guides the front surface of the potted cup A held by the seedling planting stick 20. Further, a wire-shaped guide piece 24 is provided on the front side of the guide frame l9 to guide the rear surface of the bed-attached seedling A taken out from the seedling take-out port 21.

The seedlings 18 to be supplied to the fungus tank 18 are bedded seedlings grown in a single mat shape, or potted seedlings grown in pot-shaped bedded seedlings for each number of planted seedlings.

The seedling planting tools 20 are provided at both ends of a planting transmission case 25 which is driven to revolve around the horizontal Yuzuki shaft 6 at the rear end of the seedling planting transmission case 17 so as to be driven by rotation. The seedling planting tool 20 is rotated around the planting tool shaft 26,
It acts every time the planting transmission case 25 rotates at the same time,
The seedling extraction action is performed twice in total. B is the operating locus line of the tip of each seedling planting tool 20. A float 27 is provided below the seedling planting transmission case 17 so as to be able to swing freely around a support shaft 28, and is used to level the soil surface on which the seedling planting tool 20 acts.

Such a seedling planting device is connected to the rear of a tractor, etc.
Seedlings are planted while the vehicle is running.

In seedling planting transmission, when the drive shaft 1 is interlocked with the input shaft 4, each seedling planting tool 20 passes downward through the seedling take-out port 21 every time the drive shaft 1 is rotated once. 9, 1
The engagement of 0 means that at the stroke position where each seedling planting tool 20 passes through the seedling take-out port 2l, the rotational speed at other stroke positions where it does not pass is "high speed range".
The speed is set in the low speed range so that the speed is slower than the speed range.

For this reason, when inoculating bacteria, the number of times the width of the seedling tank 18 is taken out is selected by the variable speed gears 31 to S3. In addition, the number of seedlings to be taken out and the width of the seedlings to be taken out are determined in this way, but at the time of each taking out, the moving speed of the seedling tank 18 is alternately repeated between high speed range and low speed range as described above. It passes through the seedling extraction port 21 during this low speed range.

Therefore, the resistance between the bed-attached seedling A and the seedling planting tool 20 is small, the seedling taking out position is stable, and the seedling posture held by the seedling planting tool 20 is not easily disturbed. Moreover, the time required for one cycle of the planting operation B of the seedling planting tool does not become longer due to high-speed operation in the high-speed range.

Next, in FIGS. 5 to 8, the difference from the above example is that a pair of eccentric gears or non-circular gears 9, 10 with meshing phases shifted by 180 degrees are provided between the drive shaft 1 and the counter shaft 2. Two gear sets C. D is configured to amplify the speed difference between the high speed range and the low speed range in two stages. Gear 9 of gear group C is fixed to drive shaft 1, and gears 9 and M of gear group D are fixed to drive shaft 1.
The gear 29 of the core circle a is integrally provided so as to be rotatable with respect to the drive shaft 1. Also, on the counter shaft 2, Fig. 6,
A 4F circular gear 10 consisting of an elliptical gear as shown in FIG.
A pair of gears are integrally rotatably provided with a phase shift of 180 degrees, and are engaged with the gear 9 on the drive shaft 1 side. Further, a gear 30 having the same diameter as the gear 29 is fixed to the countershaft 2 using an ordinary core circular gear, and is meshed with the gear 29 on the drive shaft 1.

With this configuration, the drive shaft 1 and the counter shaft 2 rotate at a ratio of 1:1, but in the middle of this rotation, the speed changes between a high speed range and a low speed range, and power is transmitted first. These high speed ranges and low speed ranges are alternately repeated, and since the eccentric gears 9 and the non-circular gears 9 and 10 are connected and meshed in two sets, in the high speed range and the low speed range, By synchronous transmission of each transmission, these high speed range and low speed range can be amplified, and conversely, it is possible to combine the eccentricity of eccentric gears or non-circular gears into two stages. The eccentricity of can be set small.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partial plan view, FIGS. 2 and 3 are partial side views showing different embodiments, and FIG. The figure is a side view of the seedling planting device.
The figure is a plan view showing another embodiment, FIG. 6 is an enlarged front view of a portion thereof, FIG. 7 is a side view thereof, and FIG. 8 is a partially enlarged diagram of the transmission mechanism. (Explanation of symbols) l Drive shaft 2 Counter shaft 3 Lead cam shaft 6 Planting shaft l 0 9 1 0 Elliptical gear, eccentric gear Elliptical gear, eccentric gear

Claims (1)

[Claims] A seedling tank that accommodates bedded seedlings and is transmitted back and forth in the horizontal direction;
In a seedling planting machine that has a seedling planting tool that takes out bedded seedlings supplied from the seedling tank and plants them on the soil surface, there is a drive shaft that moves the seedling planting tool up and down, and a drive shaft that moves the seedling tank laterally. An eccentric gear or a non-circular gear is engaged between the lead cam shaft to be moved and the counter shaft that interlocks with the lead cam shaft to slow down the lateral movement of the seedling tank when the seedling planting tool takes out bedded seedlings from the seedling tank. A seedling planting transmission device characterized by being interlocked.