JP3463141B2 - Multi-row transplanter - Google Patents

Description

Description: 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. 2. Description of the Related Art Conventionally, a multi-row transplanter of this type is provided with a plurality of planting devices having a seedling claw and a planting claw at an interval on the left and right sides of the machine. Potted seedlings are taken out of the seedling tray with the seedling picking nails of the attaching device, and the extracted seedlings are released to the planting nails of each planting device, and are planted in a plurality of rows in the field by these planting nails. [0003] Each of the above-mentioned planting devices is linked to a driving drive source such as a PTO shaft provided on the traveling machine body side. A speed change mechanism composed of a speed change pulley or the like operated by operation is provided for each, and by changing the planting cycle of each of the planting devices with each of the speed changing mechanisms, a pot that is planted in a plurality of rows by each of the planting devices is provided. The distance between plants in the transplanting direction of the seedlings can be changed. [0004] However, in the above-described multi-row transplanter, since a transmission mechanism is provided separately for each of the above-mentioned planting devices, each of the transmission mechanisms is used to implant each of the planting devices. When changing the attachment cycle to change the planting stock of the pot seedlings to be planted in the field, there is a problem that each of the transmission mechanisms has to be operated separately, resulting in poor operability. Moreover,
When changing the planting cycle of each planting device by operating each of the transmission mechanisms, it is very difficult to synchronize these planting cycles with each of the transmission mechanisms. There is also a problem that it is difficult to evenly arrange the planted plants of the pot seedlings. In addition, as described above, when a transmission mechanism is separately provided for each of the above-described implanting devices, there is a problem that the structure of the entire transplanter is complicated. SUMMARY OF THE INVENTION It is an object of the present invention to improve the operability when changing between planting plants of pot seedlings by a plurality of planting devices while simplifying the entire structure, and furthermore, the potting by each planting device. An object of the present invention is to provide a multi-row transplanter that can evenly arrange seedlings between seedlings. SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a seedling nail for taking out a pot seedling from a seedling tray, and a planting nail for planting a pot seedling released from the seedling nail. In a multi-row transplanter provided with a plurality of unit-type planting apparatuses having the following structure, one planting apparatus has a speed change mechanism that changes the cycle of removing seedlings of the seedling claws to change the planting stock. The transmission output side of the transmission mechanism is interlocked with a drive system of the seedling claw provided in another planting device via a connector. When changing the planting stock among pot seedlings, the shifting mechanism provided on one side of each planting device is operated, so that the seedlings of the seedling-claws provided on this one-side planting device are operated. The removal cycle is changed, and the planting operation of the planting claw provided in the one-side planting device, which is performed in a predetermined planting cycle in conjunction with the cycle change, is performed. Between seedlings of pot seedlings is changed. Further, the transmission output side of the transmission mechanism is interlocked with the drive system of the seedling claw provided on the other side planting device via the coupling body. When changing the seedling picking cycle of the seedling picking nail provided on the other side planting apparatus in synchronization with the one side planting apparatus, the pot by the planting nail of the other side planting apparatus is accordingly changed. The interval between the planted plants of the seedling is changed to the same interval as the planted plant of the one-side planting device. [0008] That is, when changing between the planted plants of the pot seedlings, only one transmission mechanism provided on one side of each of the planting devices is operated, and the planted plants of each of the planting devices are simultaneously connected to each other. Therefore, it is possible to improve the operability when changing the planting stocks, as compared with the conventional case where the above-mentioned individual planting devices are operated to change the speed individually, and furthermore, the pots can be changed. By synchronizing the planting devices with each other when changing the planting stock among the seedlings, the planting stocks of the potted seedlings by these planting devices can be made uniform. Further, since the speed change mechanism is provided only on one side of each of the implanting devices, the overall structure of the multi-row transplanter can be simplified. FIG. 2 and FIG. 3 show a multi-row implanter 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. It shows a two-row planting type. The tractor 50 is a known tractor, and has an engine mounted on an upper front portion of the fuselage.
A transmission case 51 is provided on the rear side of the engine, and drive wheels 52, a driver's seat 53, and a hydraulic elevating device 54 are provided.
And so on. The tractor 50 and each planting device 10 are connected via a pair of left and right lower links 55 extending from the tractor 50 via a top link 56 and a spring 57, and each planting device is provided by a lift arm 58 provided on the lifting device 54. The entire attachment device 10 is moved up and down. Each of the planting devices 10 includes a unit frame 11, upper and lower rails 12 provided on upper and lower portions of the frame 11, and
A seedling table 13 supported between the seedling tables 13 so as to be able to reciprocate back and forth, and a chopstick-shaped seedling that takes out one pot seedling from a seedling tray 14 that is placed on the seedling table 13 and houses a large number of pot seedlings. It is reciprocated up and down while drawing a predetermined planting locus in conjunction with the nail 1 and the seeding nail 1, and the pot seedlings taken out by the seedling nail 1 are received at the upper position and received at the lower position. A planting claw 2 composed of a divided planting cup for planting a pot seedling in a field is separately provided. Further, each of the planting devices 10 is provided with a planting drive case 15 for transmitting the rotational power from the tractor 50 to the seedling claw 1 and the planting claw 2, respectively. Specifically, a PTO shaft 5 on the rear side of the transmission case 51 is provided on the front side of each planting device 10.
Gear case 1 having a joint shaft 16 connected to the gear case 9
The input shaft 18 extending in the left-right direction from the gear case 17 is inserted and supported on the front side of each case 15. The rotational power from the input shaft 18 to the planting claws 2 via the planting drive cases 15 is not shifted, and these planting claws 2 are moved up and down at a predetermined planting speed. On the other hand, from the input shaft 18, the respective seedling nails 1
As described later in detail, the rotational power 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 rotates the seedling claw of the one side planting device 10. In step 1, the cycle of picking up the seedlings from the seedling tray 14 and releasing the seedlings to the planting claws 2 is changed. By transmitting the seedlings to the nails 1, the seedlings 1 of each planting device 10 are synchronized with each other, and the shifting power of the transmission mechanism 3 is used to perform a seedling harvesting operation in a predetermined seedling extraction cycle. The operation of taking out the seedlings of the nail 1 is linked to each of the planting claws 2 to perform the planting operation of each of the planting claws 2. That is, the input shaft 18 of the planting drive case 15 in the one-side planting device 10 among the planting devices 10 described above.
And the driving system of the seedling picking nail 1, the cycle of picking the seedlings of the pot seedlings by the seedling nails 1 is changed, and the cycle change of the planting cycle of the pot seedlings by the planting nails 2 is changed by this cycle change. The transmission mechanism 3 is provided. In the embodiment shown in each of the drawings, the transmission mechanism 3 is provided near the input shaft 18 in the case 15 and a pulley 31 interlocked with the input shaft 18.
And a transmission shaft 38 for transmitting rotational power to the seedling claw 1 side is provided at a lower rear portion 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 able to swing back and forth, and a split comprising a moving side disk 33a and a fixed side disk 33b urged by a spring on the upper side of the chain case 32. A pulley 33 is supported opposite to the pulley 31 while a transmission belt 34 is hung between the pulleys 31 and 33. As shown in FIG. 2, a protruding rod 35 is provided on the upper side of the chain case 32, and an operation lever 36 for inter-strain adjustment is swingable on the front upper part of the one-side planting device 10. At the same time, one end of a rod 37 is pivotally supported at the tip of an arm 36a fixed to the lower end of the operation lever 36, and the other end of the rod 37 is pivotally supported by the projecting rod 35,
The swing operation of the lever 36 allows the chain case 32 to move through the arm 36a, the rod 37 and the protruding rod 35.
Of the split pulley 33 while applying a tension to the transmission belt 34 while swinging the transmission shaft 34 in the front-rear direction around the transmission shaft 38 provided on the lower side thereof.
a is moved toward and away from the fixed-side disk 33b against the urging force of the spring, and the effective diameter of the split pulley 33 is changed. The rotational power transmitted to the transmission shaft 38 is shifted. More specifically, as apparent from FIG.
The rotational power transmitted from the PTO shaft 59 to the joint shaft 16 is transmitted to the input shaft 18 via first and second gears G1 and G2 provided in the gear case 17.
The third to seventh gears G3, G4, G5, G are provided inside each planting drive case 15 provided in each planting apparatus 10.
6 and G7, and a one-rotation clutch 39 for turning on and off the rotational power from the seventh gear G7 to the planting claw 2 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 a fixed-side gear movably supported on a first shaft S1 provided in the drive case 15 in parallel with the input shaft 18. A movable gear 39b slidably supported on the first shaft S1 so as to face the gear 39a;
And a cam body 39c provided on the first shaft S1, a pushing body 39d slidably in contact with 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 of the transmission chain case 19 in the longitudinal direction is supported by the projected portion. 19, a first chain H1 is supported on the first shaft S1 and a second chain H2 is supported on a second shaft S2 provided on the other side of the chain case 19, and these 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
Projecting inward from the chain case 19 to support a rotor case 20 provided with a plurality of gears at the projecting portion, and an operating arm 21 provided with an opening / closing cam or the like inside the case 20. Are connected to each other, and the planting claw 2 is attached to the distal end side of the arm 21. The rod 39e of the one-rotation clutch 39 is swung at a predetermined timing by the rotational power shifted by the transmission mechanism 3, and the rod 39e swings through the pushing body 39d and the cam body 39c with the swing of the rod 39e. The moving side gear 39b meshes with or separates from the fixed side gear 39a, and at the time of meshing, the rotational power from the input shaft 18 is applied 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 in the range between the receiving position of the pot seedling just below the seedling collecting claw 11 and the planting position that enters the field. . Further, in the planting device 10 shown in the lower part of FIG. 1 of the planting devices 10, the planting drive case 15 of the eighth gear G constantly meshing with the fourth gear G4.
A pulley 31 constituting the transmission mechanism 3 is attached to an 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 speed change chain case 32 is supported on the lower planting drive case 15 via the transmission shaft 38.
The split shaft 33 supports a fourth shaft S4 in parallel with the transmission shaft 38 and the third shaft S3, and a portion of the fourth shaft S4 protruding from the chain case 32 is opposed to the pulley 31 so as to face the split pulley 33. To support. The rotation power transmitted from the pulley 31 to the split pulley 33 via the transmission belt 34 and shifted by the split pulley 33 is transmitted to the third and fourth chain wheels H3 and H4 in the chain case 32, A transmission shaft 38 provided in the lower planting drive case 15 via a second chain C2 wound between the wheels H3 and H4.
To be transmitted. Each of the planting drive cases 15 of each of the planting devices 10 is provided with the transmission shaft 38 for transmitting rotational power to each of the seedling claws 1, respectively. The fifth and sixth shafts S5 and S6 are supported in the respective cases 15 in parallel with the transmission shaft 38, and these transmission shafts 38
And ninth to twelfth gears G9, G provided on the shafts S5, S6.
The rotational power from the transmission shaft 38 is transmitted to the sixth shaft S6 via 10, G11, and 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 via the thirteenth and fourteenth gears G13 and G14 provided on the 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 provided at the shaft ends of these shafts S7 and S8. The third chain C3 is wound between the chain wheels H5 and H6 to transmit rotational power from the seventh shaft S7 to the eighth shaft S8. Also, a ninth shaft S9 supported on the other end side of the eighth shaft S8 and the rotor case 22 on the side of the seedling claw 1 in parallel with the shaft S8.
And the seventh and eighth chain foils H7 and H8, respectively, and the fourth chain C between these chain foils H7 and H8.
4 to transmit the rotational power from the eighth shaft S8 to the ninth shaft S9. Further, an operating arm 23 having an opening / closing cam or the like is connected to the rotor case 22, and the seedling removing claw 1 is attached to a distal end side of the arm 23. An operating body 40 for operating the rod 39e of the one-rotation clutch 39 of the speed change mechanism 3 is provided on the sixth axis S6, and is shifted by the speed change mechanism 3 to the sixth axis S6. The operating body 40 is driven by the transmitted rotational power.
Is operated, and the rod 39e is swung by the operating body 40, whereby the moving side gear 39b is meshed with or separated from the fixed side gear 39a via the pushing body 39d and the cam body 39c. The rotation power from the shaft 18 is transmitted to or blocked from the planting claws 2. still,
The operating body 40 includes a projection fixed to the sixth axis S6, and a cam body that moves by contacting the projection when the sixth axis S6 makes one rotation, and moves the rod 39e. . The transmission shafts 38 supported by the planting drive cases 15 are connected to each other by an interlocking member 4 by a connecting body 4. In the embodiment shown in each of the drawings, the transmission shafts 38 extend from the case 15 to the transmission shafts 38. Are protruded inward, and the inner ends of these transmission shafts 38 are interlockedly connected via a connecting body 4 made of a universal joint, and are shifted by the speed change mechanism 3 from the speed change chain case 32 as 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 in FIG. In FIG. 1, the rotational power shifted by the transmission mechanism 3 is transmitted to a transmission shaft 38 provided in the lower planting drive case 15, and the transmission shaft 38 is transmitted from the transmission shaft 38 to the upper drive case 15. Since the power is transmitted to the provided transmission shaft 38 via the coupling body 4, the upper drive case 15 is provided with the third shaft S <b> 3 provided on the lower drive case 15 and the speed change chain. There is no need to attach the case 32. Next, the operation of the above configuration will be described. First, in the above transplanting machine, when changing the planting stock of the pot seedlings by each of the planting devices 10, the operating lever 36 of the transmission mechanism 3 provided on one side of each of the planting devices 10 is operated. Operate the split pulley 33
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 the transmission 2, the seedling removal cycle of the seedling removal nail 1 provided in the one-side planting device 10 is changed. Further, when the seedling picking cycle of the seedling picking nail 1 is changed, the one-rotation clutch 39 is engaged and disengaged by the shifting power of the transmission mechanism 3, and the rotating power from the input shaft 18 is changed during the engaging operation. It is transmitted to the planting nail 2 side of the one-side planting device 10 via the chain case 19, the rotor case 20, and the operating arm 21, and the planting stock of the pot seedling by the planting nail 2 is changed. That is, although the planting nail 2 is planted in a predetermined planting cycle, the planting operation interval is set in the changed planting cycle of the planting nail 1, so that the planting operation is performed. In accordance with the change of the cycle, the planting stock of the pot seedling by the planting claw 2 is changed. Further, since the transmission shaft 38 of the one-side planting device 10 and the transmission shaft 38 of the other-side planting device 10 are connected to each other via the connecting body 4, When the cycle for removing the seedlings of the seedlings 1 provided in the one-side planting apparatus 10 is changed, the cycle for removing the seedlings of the seedlings 1 for the other side planting apparatus 10 is simultaneously changed. The other side planting device 1 in conjunction with the seedling claw 1
The one-side planting device 10 is also used between planting stocks by the planting claws 2 of 0.
Will be changed to the same interval as between the planted plants. That is, each planting claw 2 of each planting device 10
In order to change the planting stocks of the pot seedlings, only one shifting mechanism 3 provided on one side of each planting device 10 is operated to change the seedling removal cycle of the seedling claw 1. It is possible to simultaneously change the planting stocks by the hooks 2 in synchronism with each other, and therefore, as compared with the conventional case in which each of the planting devices 10 is individually shifted, the operation for changing the planting stocks is performed. Can be enhanced, and
By synchronizing the planting claws 2 of the planting devices 10 at the time of 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 transmission mechanism 3 is provided with each of the planting devices 10.
Since it is provided only on one side, the overall structure of the transplanter can be simplified. In FIGS. 1 and 2, reference numeral 24 denotes a leveling roller, reference numeral 25 denotes a guide roller, reference numeral 26 denotes a cultivation roller, reference numeral 27 denotes a gauge wheel for adjusting the height of each planting apparatus 10, and reference numeral 28 in FIG. It is a toolbar for connecting and supporting each of the planting devices 10. The multi-row transplanter of the present invention may be of a type mounted on a tractor as shown in the embodiment, or may be of a type mounted with a prime mover for driving wheels such as an engine. As described above, according to the present invention,
One of the planting devices provided in the multi-row transplanter is provided with a speed change mechanism for changing the seedling removal cycle of the seedling picking nail to change between planted plants, and the speed change output side of this speed change mechanism is connected via a coupling body Because it was linked to the drive system of the seedling claw provided in other planting equipment,
When changing the seedling removal cycle of the seedling picking nail provided on the one-side planting device by the transmission mechanism and changing the planting stock by the planting claw, the other side planting is synchronized with the one-side planting device. At the same time, the seedling removal cycle of the seedling claw provided on the attachment device can be changed,
Along with this, the interval between the planted plants of the pot seedling by the planting claws of the other side planting device can be changed to the same interval as the planted plant of the one side planting device. In other words, when changing the planting stocks of the pot seedlings, by operating only one transmission mechanism provided on one side of each planting device, the planting plants of each planting device are simultaneously synchronized with each other. It can be changed, and therefore, compared to the conventional case where each of the above-mentioned planting devices is operated by a speed change,
Operability when changing between planted strains can be improved,
Moreover, when the planting plants of the pot seedlings are changed, the planting devices are synchronized with each other, whereby the planting intervals of the pot seedlings by these planting devices can be made uniform.
Further, since the transmission mechanism is provided only on one side of each of the implanting devices, the overall structure of the transplanter can be simplified,
Costs can also be reduced.

[Brief description of the drawings] FIG. 1 is a power transmission path diagram of a multi-row transplanter 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. 3; [Explanation of symbols] 1 ... Naetori nail 2 ... planted nail 3 ... Transmission mechanism 4 ... Connected body 10. Planting equipment

──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuo Seki, In-house, 1-32 Chayamachi, Kita-ku, Osaka-shi, Osaka Yanmar Agricultural Machinery Co., Ltd. (56) References JP-A-5-41913 (JP, A) JP-A-5-41913 Hei 6-14623 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 370-387

Claims (1)

(57) Claims: 1. A seedling pawl retrieving seedlings from seedling tray
And, with claw planted planting the seedlings to be released from the seedling claw
In multi-start transplanter having a plurality of planting apparatus unit-type with bets, one planting equipment is transmission structure for changing the planting strains by changing the seedling taking out cycle of the seedling pawl With
Interlocking of the driving system of the to have, the transmission output of the transmission structure, the seedling pawl comprising through connecting body to other planting equipment
Multi-transplanter characterized by the fact that: