JPS6332569Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a seedling conveying device for a transplanter.

Conventionally, in a transplanting machine with a four-wheel vehicle body that travels with a plant disk, the seedlings supplied to the rotating plant disk are conveyed downward by the rotation of the plant disk while being held by the plant disk, and are transported downward to the ground surface. It is transplanted to the ground by being dropped vertically from a position close to the ground. The plant disk rotates by being connected to a suppression wheel and a chain that rotate as the body of the transplanter advances.In order to maintain a constant spacing between the seedlings to be transplanted, seedlings are placed around the outer periphery of the plant disk. Marks that serve as a guide for feeding are provided at even intervals.
Therefore, when adjusting the spacing between transplanted seedlings, it is done by replacing the sprocket around which the chain is wound and changing the rotation ratio between the suppression wheel and the plant disk. Adjustment between transplanted strains is extremely time-consuming and difficult.

This invention was devised in view of the above points, and the object is to provide a seedling conveying device for a transplanter that can easily adjust the number of transplanted plants and can also perform fine adjustments.

This idea involves installing a seedling feeding belt tower upright at the front of the body of a transplanter that has a rotating transplanting section connected to a drive section and traveling on the ground, and a seedling feeding belt tower that is stretched horizontally from side to side. A horizontal seedling feeding belt and two vertical seedling feeding belts stretched in the vertical direction are provided, and the upper end of the vertical seedling feeding belt is positioned at one end of the horizontal seedling feeding belt, and the vertical seedling feeding belt By positioning the lower part facing the transplanting section, and connecting the horizontal seedling feeding belt and the vertical seedling feeding belt to the drive section, the supply of seedlings to the transplanting section can be controlled by moving the seedlings placed on the horizontal seedling feeding belt. is conveyed by the rotation of the horizontal seedling feeding belt, and is held between the belt surfaces moving downward by the vertical seedling feeding belt. The process should be carried out by holding the transfer from the part to the transplant part,
Providing a speed change mechanism for adjusting the rotational speed in at least one of a power transmission system that transmits rotational force from the drive section to the horizontal seedling feeding belt and a power transmission system that transmits rotational force from the drive section to the vertical seedling feeding belt,
By operating the variable speed mechanism, even if the seedlings are placed in the same way on the horizontal seedling feeding belt, the number of transplanted plants can be easily adjusted.

An embodiment of this invention will be described based on the drawings. A seedling feeding belt tower 6 is erected in front of a driver's seat 5 of a body 4 of a transplanter having a pair of left and right front wheels 1 and a pair of left and right rear wheels 3 connected to an engine 2. A tip of a plant frame 7 extending rearward is connected to the lower end of the seedling feeding belt tower 6 so as to be rotatable in the vertical direction. This plant frame 7 supports, from the front, a soil plate 8, a plant disk 9 which is a transplant section, and a suppression wheel 10 which is a drive section. The suppressing wheel 10 is rotatably provided while being connected to the ground surface, and a sprocket 11 that rotates integrally with the suppressing wheel 10 is fixed to the center of rotation of the suppressing wheel 10. A pair of left and right sprockets 12 are fixed to the center of the plant disk 9, and a chain 13 is wound between one sprocket 12 and the sprocket 11. A chain 15 is wound between the other sprocket 12 and a sprocket 14 provided at the tip of the plant frame 7.

On the right side of the upper part of the seedling feeding belt tower 6, a horizontal seedling feeding belt drive shaft 17 to which a continuously variable pulley 16, which is a speed change mechanism, is connected is provided so as to be rotatable around the axis, and this horizontal seedling feeding belt Drive shaft 17
A pair of front and rear pulleys 18 are fitted into the. Further, a horizontal seedling feeding belt shaft 19 parallel to the horizontal seedling feeding belt drive shaft 17 is fixedly provided on the upper left side of the seedling feeding belt tower 6, and the horizontal seedling feeding belt shaft 19 is connected to the pulley 18. A pair of front and rear pulleys 20 facing each other in the left and right direction and these pulleys 20
A pulley 21 located in between is loosely fitted. The pulley 18 and pulley 2 facing each other
0, a horizontal seedling feeding belt 22 is stretched. Furthermore, a vertical seedling feeding belt shaft 23 parallel to the horizontal seedling feeding belt shaft 19 is fixedly provided on the upper left side of the seedling feeding belt tower 6, and this vertical seedling feeding belt shaft 23 is provided with a shaft facing the pulley 21. A pulley 24 is loosely fitted in close proximity to the pulley 21. A pair of left and right vertical seedling feeding belt shafts 25 and a pulley 26 loosely fitted to these vertical seedling feeding belt shafts 25 are provided at the center in the vertical direction of the seedling feeding belt tower 6. A pair of left and right vertical seedling feeding belt drive shafts 28 having a pulley 27 fitted at one end and a support shaft 30 having a tension roller 29 loosely fitted are provided at the lower part. A vertical seedling feeding belt 31 is stretched between the pulleys 24, 26, 27 and the tension roller 29, and a vertical seedling feeding belt 32 is also stretched between the pulleys 20, 26, 27. The belt surfaces of the vertical seedling feeding belts 31 and 32 are joined from the upper end to the lower end as shown in FIG.

The vertical seedling feeding belt drive shaft 28 located on the left side and the rotating shaft 33 to which the sprocket 14 is connected are connected by a bevel gear 34,
Spur gears 35 fitted to the vertical seedling feeding belt drive shaft 28 are meshed with each other, and furthermore, between the pulley 36 fitted to the vertical seedling feeding belt driving shaft 28 located on the right side and the stepless pulley 16. A V-belt 37 is stretched across. In addition, this V belt 37
is a tension roller 38 that adjusts the tension of the V-belt 37 when the stepless pulley 16 is operated.
Handle 3 for operating the tension roller 38
9 is provided.

In such a configuration, when the body 4 is advanced, the suppression wheel 10 rotates while being connected to the ground surface, and this rotation is transmitted to the plant disk 9 via the chain 13, causing the plant disk 9 to rotate. moreover,
This rotation is transmitted to sprocket 1 via chain 15.
4, and then to one of the vertical seedling feeding belt drive shafts 28 via the bevel gear 34.
When one vertical seedling feeding belt drive shaft 28 rotates, the spur gears 35 rotate in the opposite direction while meshing with each other, and the other vertical seedling feeding belt driving shaft 28 rotates in the opposite direction. Therefore, the pair of left and right pulleys 27
rotates in the directions indicated by arrows A and A' in FIG. 2, and the two vertical seedling feeding belts 31 and 32 rotate integrally with the belt surfaces that join each other moving downward. Further, the rotation of the vertical seedling feeding belt drive shaft 28 on the right side is transmitted from the pulley 36 to the stepless pulley 16 via the V belt 37, and the horizontal seedling feeding belt driving shaft 17 and the pulley 18 are connected to each other as indicated by arrow B in FIG. The horizontal seedling feeding belt 22 also rotates in the direction of arrow B. Therefore, when a seedling is placed on the pair of horizontal seedling feeding belts 22 in a bridging state, the seedling is conveyed to the left as the horizontal seedling feeding belt 22 rotates, and the two vertical seedlings are placed on the left side end. The seedlings are held and conveyed downward by the feeding belts 31, 32, transferred from the lower ends of the vertical seedling feeding belts 31, 32 to the plant disk 9, where they are held and then transplanted to the ground surface.

When the diameter around which the V-belt 37 is wound is changed by operating the stepless pulley 16, the horizontal seedling feed belt drive shaft 1
7. The rotational speed of the pulley 18 and the horizontal seedling feeding belt 22 changes, and even if the position at which the seedlings are placed on the horizontal seedling feeding belt 22 is kept constant, the interval at which the seedlings are transferred to the plant disk 9 and clamped changes, and the seedlings are transplanted. The spacing between seedlings changes. In this way, the distance between seedlings can be easily adjusted by simply operating the stepless pulley 16. Moreover, fine adjustment between transplanted plants can be easily performed by finely adjusting the rotational speed of the horizontal seedling feeding belt 22 by operating the stepless pulley 16.

Since this device is constructed as described above, the rotational speed of at least one of the horizontal seedling feeding belt and the vertical seedling feeding belt, which transport the seedlings to the transplanting section, is adjusted by a speed change mechanism. Even when the spacing of the seedlings placed on the feeding belt is fixed, the feeding interval to the transplanting section can be adjusted, thereby making it easy to adjust the spacing between transplanted seedlings, and
This has the advantage of allowing fine adjustments to be made.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a simplified overall side view, FIG. 2 is an enlarged and simplified front view of the seedling feeding belt tower, and FIG. 3 is a plan view thereof. 4... Aircraft, 6... Seedling feeding belt tower, 9...
...Plant disk (transplant part), 10... Suppressing wheel (drive part), 16... Continuous pulley (speed change mechanism), 2
2... Horizontal seedling feeding belt, 31-32... Vertical seedling feeding belt.

Claims (1)

[Scope of utility model registration request] A seedling feeding belt tower is erected at the front part of the body of a transplanting machine that has a rotating transplanting part connected to a drive part and travels on the ground surface, and a seedling feeding belt tower is provided with a horizontal belt surface on the left and right sides. A horizontal seedling feeding belt is provided which is stretched in the vertical direction and rotates while being connected to the drive unit, and two vertical seedling feeding belts are stretched in the vertical direction and rotated while being connected to the driving unit. Belt surfaces that move downward of the seedling feeding belt are joined to each other so as to be integrally movable, and the upper end of the vertical seedling feeding belt is an end where the traveling direction changes when the horizontal seedling feeding belt is in the downward state. a power transmission system for transmitting rotational force from the driving section to the horizontal seedling feeding belt; 1. A seedling transfer device for a transplanter, characterized in that a power transmission system for transmitting rotational force to at least one side of the transmission system is provided with a speed change mechanism for adjusting the rotational speed.