JPH08172829A - Multi-streak transplanter - Google Patents

Abstract

PURPOSE: To obtain a multi-streaks transplanter capable of simplifying the whole structure, uniformly adjusting distances between planted stocks of pot seedlings and improving processability in changing the distance between the planted stocks by interlocking an output side of speed change in a speed change mechanism with a driving system of seedling-takeout claws belonging to the other planting device through a connecter. CONSTITUTION: The object multi-streak transplanter has plural seedling-takeout claws 1 taking out pot seedlings from a seedling tray and planting device 10 having planting claws 2 planting pot seedlings discharged from the seedling- takeout claws 1, and a speed change mechanism 3 changing a seedling-takeout cycle of the seedling-takeout claws 1 to change a distance between planted stocks is installed, then an output side of speed change of the speed change mechanism 3 is interlocked with a driving system of the seedling-takeout claws 1 belonging to the other planting device 10 through a connecter 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-row transplanter for transplanting pot seedlings such as vegetables into a field in a plurality of rows.

[0002]

2. Description of the Related Art Conventionally, this type of multi-row transplanter is provided with a plurality of planting devices having a seedling picking claw and a planting claw at left and right intervals on a machine body, and each planting device is operated while the machine is running. Pot seedlings are taken out from the seedling tray with the seedling picking nails, these picked seedlings are discharged to the planting nails of each planting device, and these planting nails are used to plant in multiple rows in the field.

Further, each of the planting devices is interlocked with a traveling drive source such as a PTO shaft provided on the side of the traveling machine body, and between the planting devices and the traveling drive source, an inter-stock adjustment lever is provided. A speed change mechanism including a speed change pulley that is operated by operation is provided for each, and a pot that is planted in a plurality of rows by each of the planting devices by changing the planting cycle of each of the planting devices by each of the speed changing mechanisms. The distance between plants in the direction of seedling transplantation can be changed.

[0004]

However, in the above-described multi-row transplanter, since the speed change mechanism is separately provided for each of the planting devices, the planting cycle of each planting device is changed by each speed changing mechanism. However, when changing the planting stock of pot seedlings to be planted in the field, it is necessary to operate each of the transmission mechanisms separately, which causes a problem of poor operability. Moreover,
When the planting cycle of each planting device is changed by the operation of each gear shifting mechanism, it is very difficult to synchronize each planting cycle with each gear shifting mechanism. There was also a problem that it was difficult to evenly arrange the planting stock of pot seedlings. Further, as described above, when the transmission mechanism is separately provided for each of the planting devices, there is a problem that the structure of the entire transplanter becomes complicated.

An object of the present invention is to improve the operability when changing the planting stock of pot seedlings by a plurality of planting devices while simplifying the overall structure, and furthermore, the pots by each planting device can be improved. The point is to provide a multi-row transplanter that can evenly arrange seedling planting stocks.

[0006]

In order to achieve the above object, the present invention provides a seedling nail 1 for taking out pot seedlings from a seedling tray.
And a plurality of planting devices 10 each having a planting claw 2 for planting pot seedlings to be released from the seedling harvesting claw 1. 1 is provided with a speed change mechanism 3 that changes the seedling take-out cycle of 1 to change between planting stocks, and the speed change output side of the speed change mechanism 3 is provided to another planting apparatus 10 via a connecting body 4. It is linked to the drive system of.

[0007]

When changing between planting stocks of pot seedlings, the transmission mechanism 1 provided on one side of each planting device 10 is operated to operate the seedling taking claw 1 provided on the one side planting device 10.
By changing the seedling take-out cycle of No. 1 and performing the planting operation of the planting claw 2 provided in the one-side planting device 10 that is planted in a predetermined planting cycle in conjunction with this cycle change, The planting stock of pot seedlings by the planting claw 2 is changed. The speed change output side of the speed change mechanism 3 is connected to the connecting body 4
Since it is interlocked with the drive system of the seedling picking claw 1 provided in the other side planting device 10 through this, when changing the planting stock of the one side planting device 10 by the speed change mechanism 3, this one side planting device 10 The seedling take-out cycle of the seedling picking nail 1 provided on the other-side planting apparatus 10 is changed at the same time in synchronization with the planting apparatus 10, and accordingly, potting seedlings are planted by the planting nail 2 of the other-side planting apparatus 10. The distance between the plants is changed to the same interval as the planting plant of the one-side planting device 10.

That is, when changing the planting stock of the pot seedlings, it is only necessary to operate one speed change mechanism 3 provided on one side of each planting machine 10 to change the planting stock of each planting machine 10. Can be changed in synchronization with each other at the same time,
Therefore, compared to the conventional case where the planting apparatus 10 is operated to change the speed of each plant individually, the operability when changing the planting stock can be improved, and moreover, when changing the planting stock of the pot seedling. By synchronizing the planting devices 10 with each other, the planting stocks of pot seedlings by the planting devices 10 can be made uniform. In addition, the speed change mechanism 3
Is provided on only one side of each of the planting devices 10, so that the overall structure of the multi-row transplanter can be simplified.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 and FIG. 3 show a multi-row transplanter in which a pair of left and right planting devices 10 in unit form are connected to the rear side of a tractor 50 which is a traveling machine body. The driving type is shown. The tractor 50 is a known one and has an engine mounted on the upper front part of the airframe.
A mission case 51 is provided on the rear side of the engine, and drive wheels 52, a driver's seat 53, and a hydraulic lifting device 54 are provided.
And so on. The tractor 50 and each of the planting devices 10 are connected via a pair of left and right lower links 55 extending from the tractor 50, a top link 56, and a spring 57, and each of the planting devices is lifted by a lift arm 58 provided in the elevating device 54. The entire attachment device 10 is moved up and down.

Each of the planting devices 10 has unit frames 11 and 11, upper and lower rails 12 and 12 installed at upper and lower portions of the respective frames 11, and the rails 12 respectively.
A chopstick-shaped seedling table 13 that is supported between the seedling table 13 and a seedling tray 13 that is placed on the seedling table 13 and that accommodates a large number of pot seedlings. The nail 1 and the seedling 1 are reciprocally moved up and down while drawing a predetermined planting locus in association with the nail 1, and the pot seedling taken out by the seedling 1 is received at the upper position and received at the lower position. The planting claws 2 each having a planting cup divided into two for planting pot seedlings in the field are separately provided.

Further, each planting device 10 is provided with a planting drive case 15, 15 for transmitting the rotational power from the tractor 50 side to the seedling taking claw 1 and the planting claw 2, respectively. Specifically, the PTO shaft 5 on the rear side of the mission case 51 is provided on the front side of each of the planting devices 10.
Gear case 1 with joint shaft 16 connected to 9
7, the input shaft 18 extending in the left-right direction from the gear case 17 is inserted and supported at the front side of each case 15.

Then, the rotational power from the input shaft 18 through the planting drive cases 15 to the planting claws 2 is not changed, and the planting claws 2 are moved up and down at a predetermined planting speed. On the other hand, each of the seedling picking nails 1 from the input shaft 18
As will be described in detail later, the rotational power to reach the gears is changed by a speed change mechanism 3 provided on one side of each of the planting devices 10, and the speed change mechanism 3 causes the seedling taking claws of the one side planting device 10. 1 changes the seedling take-out cycle from taking out the pot seedlings from the seedling tray 14 and releasing them to the planting claws 2, and the variable speed output when changing the seedling taking-out cycle is used for the seedling picking device 10 on the other side. By transmitting the seedlings to the claws 1, the respective seedling taking claws 1 of the respective planting devices 10 are synchronized with each other so that the gear shifting power of the speed change mechanism 3 causes the seedling taking operation in a predetermined seedling taking cycle. The seedling taking-out operation of the nail 1 is interlocked with each of the above-mentioned planting nails 2 to perform the planting operation of each of these planting nails 2.

That is, of the above-mentioned planting devices 10, the input shaft 18 of the planting drive case 15 in the one-side planting device 10
Between the seedling taking nail 1 and the drive system of the seedling taking nail 1, the seedling taking-out cycle of pot seedlings by the seedling taking nail 1 is changed, and the cycle of changing potting seedlings by the planting nail 2 is changed by this cycle change. Since the speed change mechanism 3 is provided, in the embodiment shown in each drawing, as the speed change mechanism 3, a pulley 31 interlocked with the input shaft 18 is provided near the input shaft 18 in the case 15.
And a transmission shaft 38 for transmitting rotational power to the seedling taking claw 1 side is provided in the lower rear part of the case 15,
A lower portion of the speed change chain case 32 is supported on the transmission shaft 38 so as to be capable of swinging back and forth, and a spring-biased moving side disk 33a and a stationary side disk 33b are provided on the upper side of the chain case 32. While supporting the pulley 33 so as to face the pulley 31, a transmission belt 34 is hung between the pulleys 31 and 33.

Further, as shown in FIG. 2, a projection rod 35 is provided on the upper side of the chain case 32, and a stock lever adjusting operation lever 36 is swingable on the front upper part of the one side planting device 10. At the same time, the one end of the rod 37 is pivotally supported by the tip of the arm 36a fixed to the lower end of the operating lever 36, and the other end of the rod 37 is pivotally supported by the projecting rod 35.
The swinging operation of the lever 36 causes the chain case 32 to pass through the arm 36a, the rod 37 and the projecting rod 35.
Is oscillated in the front-rear direction about the transmission shaft 38 provided on the lower side thereof, and the moving side disc 33 of the split pulley 33 is applied while applying a tension force to the transmission belt 34.
By moving a toward and away from the fixed side disk 33b against the biasing force of the spring to change the effective diameter of the split pulley 33, the pulley 33 is passed through the chain case 32 through the chain case 32. The rotational power transmitted to the transmission shaft 38 is changed.

More specifically, as apparent from FIG. 1,
The rotational power transmitted from the PTO shaft 59 to the joint shaft 16 is transmitted to the input shaft 18 via the first and second gears G1 and G2 provided in the gear case 17.
Then, the third to seventh gears G3, G4, G5, G are provided inside the respective planting drive cases 15 provided in the respective planting devices 10.
6 and G7 are provided, and a one-rotation clutch 39 for turning on and off the rotational power from the seventh gear G7 to the planting claw 2 side is provided on the output side of the seventh gear G7.

The one-rotation clutch 39 is always meshed with the seventh gear G7 and is fixedly supported on the first shaft S1 provided in the drive case 15 in parallel with the input shaft 18 so as to be freely rotatable. 39a and a moving-side gear 39b slidably supported on the first shaft S1 so as to face the gear 39a.
A cam body 39c provided on the first shaft S1, a pushing body 39d slidably contacting the cam body 39c, and a rod 39e for pushing the pushing body 39d.

Further, the first shaft S1 is projected outward from the planting drive case 15, and one side in the longitudinal direction of the transmission chain case 19 is supported by this projecting portion, and the chain case is formed. Inside the 19, a first chain wheel H1 is supported on the first shaft S1, and a second chain wheel H2 is supported on a second shaft S2 provided on the other side of the chain case 19, so that each of the wheels H1, The rotational power from the first shaft S1 is transmitted to the second shaft S2 via the first chain C1 wound between H2. Further, the second axis S2
Is projected inward from the chain case 19 and supports a rotor case 20 having a plurality of gears at its protruding portion, and an operating arm 21 provided with an opening / closing cam or the like is provided on the inner side of the case 20. And the planting claw 2 is attached to the tip side of the arm 21.

Then, the rod 39e of the one-rotation clutch 39 is swung at a predetermined timing by the rotational power changed by the speed change mechanism 3, and the swinging of the rod 39e causes the pusher 39d and the cam 39c to intervene. The moving side gear 39b is meshed with or separated from the fixed side gear 39a, and at the time of meshing, the rotational power from the input shaft 18 is transmitted to the planting claw 2 via the chain case 19, the rotor case 20 and the operating arm 21. The planting claw 2 is moved up and down while drawing a predetermined planting locus within the range of the pot seedling receiving position directly below the seedling picking claw 11 and the planting position projecting into the field. .

Further, in the planting device 10 shown in the lower side of FIG. 1 among the planting devices 10, the planting drive case 15 has an eighth gear G which is constantly meshed with the fourth gear G4.
The third shaft S3 having the number 8 is supported, and a pulley 31 constituting the speed change mechanism 3 is attached to the outer end of the third shaft S3 protruding from the case 15, and the input shaft 18 is attached to the pulley 31. From the third and fourth gears G3, G4
And via the eighth gear G8. In addition, a gear shift chain case 32 is supported by the planting drive case 15 on the lower side via the transmission shaft 38.
The fourth shaft S4 is supported in parallel with the transmission shaft 38 and the third shaft S3, and the split pulley 33 faces the pulley 31 at a protruding portion of the fourth shaft S4 from the chain case 32. Support. Then, the rotational power transmitted from the pulley 31 to the split pulley 33 via the transmission belt 34 and changed in speed by the split pulley 33 is transferred to the third and fourth chain wheels H3 and H4 in the chain case 32, and A transmission shaft 38 provided in the planting drive case 15 on the lower side via a second chain C2 wound between the wheels H3 and H4.
To be transmitted to.

The planting drive case 15 of each planting apparatus 10 is provided with the transmission shaft 38 for transmitting the rotational power to the seedling taking claw 1 side, and The fifth and sixth shafts S5 and S6 are supported in the respective cases 15 in parallel with the transmission shaft 38, and the transmission shaft 38
And 9th to 12th gears G9, G provided on the respective axes S5, S6
Rotational power from the transmission shaft 38 is transmitted to the sixth shaft S6 via 10, G11, G12. Further, each case 15 has a seventh axis S7 orthogonal to the sixth axis S6.
And the rotational power reaching the sixth shaft S6 is transmitted to the seventh shaft S7 side via the thirteenth and fourteenth gears G13 and G14 provided on these shafts S6 and S7.

Further, on the outer side near each of the cases 15, an eighth shaft S8 is supported in parallel with the seventh shaft S7, and the fifth and sixth shafts S7, S8 are provided at the shaft ends. The third chain C3 is hung between the chain wheels H5 and H6 to transmit the rotational power from the seventh shaft S7 to the eighth shaft S8. Further, the other end side of the eighth shaft S8 and the ninth shaft S9 supported by the rotor case 22 on the seedling taking pawl 1 side in parallel with the other end of the eighth shaft S8.
And 7th and 8th chain wheels H7 and H8, respectively, and the 4th chain C between these chain wheels H7 and H8.
4 is applied to transmit the rotational power from the eighth shaft S8 to the ninth shaft S9 side. Further, an operating arm 23 having an opening / closing cam is connected to the rotor case 22, and the seedling taking claw 1 is attached to the tip end side of the arm 23.

An operating body 40 for operating the rod 39e of the one-rotation clutch 39 in the speed change mechanism 3 is provided on the sixth axis S6, and the speed change mechanism 3 shifts the speed to the sixth axis S6. The operating body 40 is transmitted by the rotational power transmitted.
Is operated to swing the rod 39e by the operating body 40, thereby causing the moving side gear 39b to mesh with or separate from the fixed side gear 39a via the pushing body 39d and the cam body 39c. The rotational power from the shaft 18 is transmitted to or blocked from the planting claw 2. still,
The operation body 40 is composed of a protrusion fixed to the sixth shaft S6 and a cam body that moves by contacting the protrusion when the sixth shaft S6 makes one rotation to move the rod 39e. .

The transmission shafts 38 supported by the planting drive cases 15 are interlockingly connected by the connecting body 4. In the embodiments shown in the drawings, the transmission shafts 38 are connected from the cases 15 to each other. 1 inwardly, and the inner end sides of the respective transmission shafts 38 are interlockingly connected through a connecting body 4 composed of a universal joint, and the speed change mechanism 3 shifts the speed from the speed change chain case 32 to that shown in FIG. The rotational power transmitted to the transmission shaft 38 of the lower case 15 is transmitted from the connecting body 4 to the transmission shaft 38 of the upper case 15 of FIG.

In FIG. 1, the rotational power changed in speed by the speed change mechanism 3 is transmitted to the transmission shaft 38 provided in the lower planted drive case 15, and the transmission shaft 38 is transmitted to the upper drive case 15. Since power is transmitted to the transmission shaft 38 provided through the connecting body 4, the drive case 15 on the upper side has the third shaft S3 and the speed change chain provided on the drive case 15 on the lower side thereof. It is not necessary to attach the case 32.

Next, the operation of the above configuration will be described.

First, in the above transplanter, when changing the planting stock of pot seedlings by each of the planting devices 10, the operating lever 36 of the speed change mechanism 3 provided on one side of each of the planting devices 10 is changed. Operate the split pulley 33
The moving side disk 33a is moved toward and away from the fixed side disk 33b, and the effective diameter of the split pulley 33 is changed accordingly.
By changing the rotational power transmitted to the transmission shaft 38 via 2, the seedling taking-out cycle of the seedling taking nail 1 provided in the one-side planting device 10 is changed.

When changing the seedling take-out cycle of the seedling taking claw 1, the one-rotation clutch 39 is turned on and off by the shifting power of the speed change mechanism 3, and at the time of the turning-on operation, the rotational power from the input shaft 18 is changed to the above-mentioned value. It is transmitted to the side of the planting claw 2 of the one-side planting device 10 through the chain case 19, the rotor case 20, and the operating arm 21, and the planting stock of pot seedlings is changed by the planting claw 2. That is, although the planting claw 2 is planted in a predetermined planting cycle, the planting operation interval is set in the seedling taking cycle changed by the seedling taking claw 1. The planting stock of pot seedlings by the planting claw 2 is changed corresponding to the change of the cycle.

Further, since the transmission shaft 38 of the one-side planting apparatus 10 and the transmission shaft 38 of the other-side planting apparatus 10 are interlockingly connected to each other through the connecting body 4, the transmission mechanism 3 is used. When the seedling take-out cycle of the seedling taking nail 1 provided in the one-side planting apparatus 10 is changed, the seedling taking-out cycle of the seedling taking nail 1 in the other-side planting apparatus 10 is also changed in synchronization with this. The other side planting device 1 linked to the seedling picking nail 1
The one side planting device 10 between the planting stocks with the planting claw 2 of 0
It will be changed to the same interval as between the planted stocks.

That is, each planting claw 2 of each planting apparatus 10
When changing between planting stocks of pot seedlings by changing the seedling take-out cycle of the seedling taking nails 1 by operating one speed change mechanism 3 provided on one side of each of the planting devices 10, Since it is possible to change the planting stocks by the attachment claws 2 at the same time in synchronization with each other, therefore, the operation for changing the planting stocks is different from the conventional case where the respective planting devices 10 are operated separately. Can improve the
By synchronizing the planting claws 2 of the planting devices 10 with each other when changing the planting stocks of the pot seedlings, the planting stocks of the pot seedlings by the planting claws 2 can be made uniform. In addition, the speed change mechanism 3 includes the planting devices 10
Since it is provided only on one side, the entire structure of the transplanter can be simplified.

In FIGS. 1 and 2, 24 is a leveling roller, 25 is a guide roller, 26 is a soil roller, 27 is a gauge wheel for adjusting the height of each planting apparatus 10, and 28 in FIG. It is a toolbar for connecting and supporting the planting devices 10.

The multi-row implanter of the present invention may be of a type mounted on a tractor as shown in the embodiments, or may be of a type equipped with a motor for driving a wheel such as an engine.

[0032]

As described above, according to the present invention,
One of the planting devices 10 provided in the multi-row transplanter is provided with a speed change mechanism 3 that changes the seedling take-out cycle of the seedling picking claws 1 to change between planting stocks. Since it is interlocked with the drive system of the seedling taking claw 1 provided in the other planting device 10 via the connecting body 4, the one side planting device 1 is provided by the speed change mechanism 3.
When changing the seedling take-out cycle of the seedling picking nail 1 provided at 0 to change the planting stock by the planting nail 2, the seedling picking nail 10 is provided on the other side planting apparatus 10 in synchronization with the one side planting apparatus 10. The seedling take-out cycle of the seedling picking nails 1 can also be changed at the same time, and accordingly, the planting stocks of the pot seedlings by the planting nails 2 of the other-side planting apparatus 10 are the same as the planting stocks of the one-side planting apparatus 10. You can change the interval. That is, when changing the planting stocks of the pot seedlings, the planting stocks of the respective planting apparatuses 10 are simultaneously moved to each other simply by operating one speed change mechanism 3 provided on one side of the respective planting apparatuses 10. Therefore, the operability when changing between planting stocks can be enhanced as compared with the conventional case where each planting device 10 is operated to change gears, and the pot seedlings can be changed. By synchronizing the planting apparatuses 10 with each other when changing the planting stocks, the planting intervals of pot seedlings by the planting apparatuses 10 can be made uniform. Moreover, since the speed change mechanism 3 is provided only on one side of each of the planting devices 10, the overall structure of the transplanter can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a power transmission path diagram of a multi-row implanter according to the present invention.

FIG. 2 is a side view in which a part of the multi-row transplanter is omitted.

FIG. 3 is a plan view of FIG.

[Explanation of symbols]

 1 ... Seedling claw 2 ... Planting claw 3 ... Speed change mechanism 4 ... Connection body 10 ... Planting device

Front Page Continuation (72) Inventor Kazuo Seki, 1-32, Chayamachi, Kita-ku, Osaka-shi, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A planting device (10) having a seedling picking nail (1) for taking out pot seedlings from a seedling tray and a planting nail (2) for planting pot seedlings discharged from this seedling picking nail (1). Transplantation device (10) for a multi-row transplanter having a plurality of
In addition, a speed change mechanism (3) for changing the seedling take-out cycle of the seedling picking claw (1) to change between planting stocks is provided. A multi-row transplanter characterized in that it is interlocked with a drive system of a seedling picking nail (1) provided in another planting device (10).