JP3418004B2 - Fertilizer application equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer applicator in which a maintenance opening is provided in a fertilizer roll case provided with a fertilizer feeding roll so as to be openable and closable. 2. Description of the Related Art A fertilizer applicator is mounted on a seedling planting device of a rice transplanter so as to perform fertilizer application simultaneously with the seedling planting operation by the seedling planting device of the rice transplanter. As disclosed in Japanese Patent Application Laid-Open No. 4-335805, a separate planting device is provided on the fertilizer device, and the fertilizer device is operatively connected to the fertilizer device via a support frame or the like. At the same time, there was one that was able to perform both fertilization work and drug application work. [0003] However, according to the above-mentioned prior art, the connection structure between the fertilizing device and the dispensing device becomes large, the manufacturing cost increases, and the dispensing device for the fertilizing device is increased. It has become cumbersome to put on and take off, and there has been an inconvenience in performing maintenance of the fertilizer and the drug application device. [0004] It is an object of the present invention to provide a dispensing apparatus having a structure advantageous in terms of maintenance while reducing manufacturing costs. In order to achieve the above object, the present invention provides a fertilizer applicator wherein a maintenance opening is provided in a fertilizer roll case provided with a fertilizer feeding roll so as to be openable and closable. A drug dispensing roll case provided with a drug delivery roll that faces the opening when attached to the fertilizing roll case is detachably provided to the fertilizing roll case, and the drug dispensing roll case is provided on the fertilizing roll case.
Roll case, the fertilizer roll case
And the medicine dispensing roll case form a common feeding space.
The fertilizer formed and fed from the fertilizer feeding roll
And the powdery granular material fed from the drug feeding roll
Drugs are joined by a common flow path and from a common outlet
It was configured to be sent out . According to the present invention , when a drug application roll case is mounted on a fertilization roll case of a fertilization device, a maintenance opening provided in the fertilization roll case is opened,
The fertilizer roll case and the drug dispenser roll case can be brought into close contact with each other by allowing the drug feed roll of the drug dispenser roll case to face the opening, so the fertilizer roll case and the drug dispenser roll case can be easily connected with a connector such as a bolt. Can be connected. Also, when removing the fertilizer roll case from the fertilizer roll case, disconnect the fertilizer roll case and the fertilizer roll case from each other with a connector such as a bolt, and simply close the maintenance opening provided in the fertilizer roll case. Can be done easily. That is, it is possible to solve the problem that the connecting structure becomes large and the manufacturing cost increases, and the problem that the attachment and detachment become troublesome. Further, when the fertilizer roll case is mounted on the fertilizer roll case, the fertilizer roll case and the fertilizer roll case are configured to form a common payout space, so that each roll case forms a respective payout space. Compared with the case, it is possible to reduce the size of the fertilizer applicator in a state in which the drug application roll case is attached and to reduce the manufacturing cost. Moreover, since the dispensing roll case is detached from the fertilizing roll case by disconnecting the simple fertilizing roll case and the dispensing roll case described above, each of the feeding rolls can be easily exposed, so that maintenance is also possible. It can be advantageous. In addition, the fertilizer from the fertilizer feeding roll and
The medicine from the medicine unloading roll is shared by a common flow path.
By joining and sending out from a common outlet,
Since it is not necessary to newly provide a flow-down route and a discharge port for the medicine, it is possible to further reduce the size of the fertilizer with the medicine-dispensing roll case attached and to reduce the manufacturing cost. In addition, powdery and granular drugs tend to adhere and accumulate in the downflow path.However, they are combined with the granular fertilizer through the common downflow path and flow down. To promote the flow of the drug. Thus, according to the present invention, it is possible to make the fertilizer applicator compact with the drug application roll case mounted, to reduce the manufacturing cost, and to have an advantageous configuration in terms of maintenance. It became possible to provide a drug dispensing device. Further, according to the present invention , the manufacturing cost can be further reduced and the fertilizer applicator can be made more compact with the dispensing roll case mounted by simplifying the configuration by sharing the flow-down path. As a result, it has become possible to perform a smooth drug administration in which drug clogging is suppressed. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a side view of a seedling planting apparatus 1 for five-row planting connected to a rear part of a traveling machine of a riding type rice transplanter. The seedling planting apparatus 1 includes a feed case 2 connected to a riding type traveling machine body (not shown) via a lifting link mechanism, a support frame 3 extending from the feed case 2 to the left and right, and a rear side from the support frame 3. Transmission case 4 extended in three rows toward the plant, seedling mounting table 5 that reciprocates sideways with a constant stroke with respect to the planting transmission case 4, and seedlings are taken out one by one from the lower end of the seedling mounting table 5. And a leveling float 7 for leveling the mud surface of the field. The planting mechanism 6 includes a rotating case 8 connected to a rotating shaft 4 a provided at a rear portion of the planting transmission case 4, a supporting case 9 rotatably supported at both ends of the rotating case 8, and a supporting case 9. Planting claws 10 provided in the
As shown in FIG. 2, as shown in FIG. 2, the right and left planting transmission cases 4 are disposed only on the right and left sides of the planting transmission case 4 located at the center. I have. As shown in FIG. 1 and FIG.
Above the rear part, the planting mechanism 6 is provided via the slide mechanism 11.
The fertilizer device 12 is slidably moved up and down from a working position located just above the planting mechanism to a non-working position separated from directly above the planting mechanism 6 to the front upper part. The slide mechanism 11 includes a support bracket 13 erected on each of the right and left planting transmission cases 4, a slide rail 14 extending upward from the support bracket 13 toward the front, and a right and left slide rail 14. Horizontal frame 15,
Movable frame 1 having guide roller 16 guided by slide rail 14 and supporting fertilizer 12
7, a wire 18 spanned between the horizontal frame 15 and the movable frame 17, and an air cylinder 19 that lifts and biases the movable frame 17 via the wire 18. Engagement holes 14a are formed in the upper and lower ends of the slide rail 14, and an engagement portion (not shown) of the lock operation tool 20 provided in the movable frame 17 is provided.
The fertilizer application device 1 is engaged with the engagement hole 14a at the upper end.
2 can be fixed at the non-working position, and the fertilizer application device 12 can be fixed at the working position by engaging with the engagement hole 14a at the lower end. In the non-working position of the fertilizer application device 12, the lower end of the seedling mounting table 5 is opened,
At the end of the planting operation, it is possible to easily remove the remaining seedlings from the seedling mounting table 5. The fertilizer applicator 12 includes a left fertilizer storage hopper 21 having an inner space divided into two parts, a right fertilizer storage hopper 22 having an inner space divided into three parts at the center, and a left and right fertilizer storage hopper 21. 22, a fertilizer delivery mechanism 23 for delivering granular fertilizer by a predetermined amount from each of the sections, and a funnel 24 and a fertilizer delivery mechanism 23 provided below the fertilizer delivery mechanism 23. A flow-down hose 25 that guides the fertilizer flowed down through the funnel 24, and a groove-forming device 26 that forms a fertilization groove on the mud surface of the field and supplies the fertilizer guided by the flow-down hose 25 to the fertilization groove. It is configured. The movable frame 17 of the slide mechanism 11 has a fertilizer feeding mechanism 2
3 is connected and supported, and by the operation of the slide mechanism 11, the fertilizer storage hopper 21,
The part 22, the fertilizer feeding mechanism 23 and the funnel 24 slide up and down integrally. As shown in FIG. 3 and FIG. 4, the fertilizer feeding mechanism 23 includes a left and right boss 28
, A shutter plate 30 formed in a curved shape that extends over the left and right bosses 28 and along the outer peripheral surface of the fertilizer supply roll 29, and a fertilizer supply roll. 29
, And the like, and a brush 31 that slides on the outer peripheral surface of the main body. The fertilizer feeding roll 29 includes a roll body 29A externally fitted to a drive shaft 32 formed of a hexagonal axis around the shaft core P1 so as to transmit torque, a sleeve 29B externally fitted to the drive shaft 32 so as to be relatively rotatable, and a sleeve. A movable roll 29C is screwed onto the roll 29B, and the roll body 2 is rotated by rotating the sleeve 29B.
By performing slide adjustment of the movable roll 29C with respect to the roll 9C in the direction of the axis P1 in the direction of the axis P1, the width in the direction of the axis P1 of the fertilizer unloading recess 29a formed between the roll body 29A and the movable roll 29C is reduced. Can be changed,
This makes it possible to adjust the amount of fertilizer to be fed. The shutter plate 30 is provided with the operation lever 3
By the swinging operation of 3, the open state allowing the supply of the fertilizer to the concave portion 29a of the fertilizer feeding roll 29 and the closed state preventing the supply of the fertilizer to the concave portion 29a of the fertilizer feeding roll 29 can be switched. ing. The brush 31 is for measuring the amount of fertilizer swept out from the concave portion 29a of the fertilizer supply roll 29 by sliding contact with the outer peripheral surface of the fertilizer supply roll 29. The funnel 24 has a pair of front and rear fertilizer outlets 2.
4a is formed, and a flow path switching valve 34 for switching the flow state of the fertilizer between a state in which the fertilizer is taken out from the front fertilizer outlet 24a and a state in which the fertilizer is taken out from the rear fertilizer outlet 24a is provided. . As also shown in FIG.
A downflow hose 25 is communicatively connected to the front fertilizer outlet 24a, and during the planting operation, the flow state of the fertilizer is switched to a state of removing the fertilizer from the front fertilizer outlet 24a by operating the flow path switching valve 34. This allows the fertilizer to flow down to the fertilizer ditch. The connecting portion between the forward fertilizer outlet 24a and the downflow hose 25 is connected to the forward fertilizer outlet 24a and the downflow hose 25 by the sliding movement of the fertilizer applicator 12 by the slide mechanism 11.
The communication connection state with is released. The rear fertilizer outlet 24a is closed by a cap 35. At the end of the planting operation, the cap 35 is removed and the flow state of the fertilizer is changed by operating the flow path switching valve 34 to remove the fertilizer from the rear fertilizer outlet 24a. By switching to the left and right fertilizer storage hopper 21,
The fertilizer remaining in the interior 22 can be easily taken out. The driving of the fertilizer feeding mechanism 23 will be described. As shown in FIGS. 1 and 2, the fertilizer feeding mechanism 23 is provided with a rotating shaft 4 provided at the rear of the planting transmission case 4.
The power from a is transmitted by being transmitted to the drive shaft 32 of the fertilizer feeding mechanism 23. The drive shaft 32 has a torque with respect to the fertilizer delivery rolls 29 of the two fertilizer delivery mechanisms 23 located on the left side of the fertilizer delivery mechanisms 23 connected to the lower part of each of the left and right fertilizer storage hoppers 21 and 22. To communicate,
There are a type that transmits torque to the fertilizer feeding roll 29 of the two fertilizer feeding mechanisms 23 located on the right side, and a type that transmits torque to the fertilizer feeding roll 29 of the fertilizer feeding mechanism 23 located at the center, Each drive shaft 32 is provided with a bracket 3 extending from the movable frame 17 of the slide mechanism 11 with respect to each drive shaft 32.
6 is pivoted. On one end side of each drive shaft 32,
A large-diameter gear 37 is attached so as to freely rotate. Rotation support shafts 38 arranged in parallel with the respective drive shafts 32 are pivotally supported by the brackets 36, and one end of each of the rotation support shafts 38 has a small diameter meshing with the large-diameter gear 37. A gear 39 is attached so as to be rotatable integrally, and an operation arm 40 is provided at each end of the gear 39. The operation arm 40 at one end of the rotation support shaft 38 is extended with a rotation phase shifted by about 90 degrees with respect to the operation arm 40 at the other end. On the other hand, the planting mechanism 6 connected to the rotating shaft 4 a of the planting transmission case 4 is provided with a connecting plate 41 extending between the support shafts of the support case 9 at both ends of the rotating case 8.
An operating arm 4 is provided at the left end of the rotating shaft 4a in the central planting transmission case 4 where the left planting mechanism 6 is not provided.
2 is extended. The swinging end of the operating arm 40 and the connecting portion of the connecting plate 41 or the swinging end of the operating arm 42 are pivotally connected via a push-pull member 43.
The distance between the axis of rotation and the swing end of the operation arm 40,
The distance between the rotation axis and the connecting portion of the connecting plate 41, and
The distance between the rotation axis and the swing end of the operation arm 42 is set to the same length. That is, according to the above configuration, the power (rotational force in the counterclockwise direction in FIG. 1) from the rotating shaft 4a of each planting transmission case 4 is applied to the planting mechanism 6 or the operating arm 42, the push-pull member. 43, operation arm 40, rotating shaft 3
8, by being transmitted to the respective drive shafts 32 via the small-diameter gear 39 and the large-diameter gear 37, the fertilizer feeding rolls 29 of the respective fertilizer feeding mechanisms 23 are shown in FIGS.
Is driven in a clockwise direction at a constant speed, whereby the fertilizer feeding mechanism 23 can feed the fertilizer from the respective compartments of the left and right fertilizer storage hoppers 21 and 22. As shown in FIG. 5, the push / pull member 43 includes a link 43A pivotally supported by the operation arm 40 and a rod 43B pivotally supported by the connecting plate 41 or the operation arm 42. A state in which the link 43A and the rod 43B are connected by the operation of the connecting tool 43a provided in the device to enable the driving of the fertilizer feeding mechanism 23, and the link 43A and the rod 43B are separated and the slide is performed. The state can be switched to a state where the sliding movement of the fertilizer application device 12 by the mechanism 11 is enabled. As shown in FIG. 3, the fertilizing roll case 27
An opening 27a for maintenance is provided on the back surface of the device so as to be freely opened and closed. A cover 44 which is normally detachable by engagement and disengagement with the fertilizer roll case 27 is attached to the opening 27a. By removing the cover 44, maintenance such as cleaning of the fertilizer feeding roll 29 can be performed. You can do it. As shown in FIG. 5 and FIG.
Is provided with a drug application device 45 configured to be detachable from the fertilizer application device 12. The dispensing device 45 includes a medicine storage hopper 46 for storing a powdered or granular medicine such as an insect repellent or a disinfectant, a flow-down hose 47 for guiding the medicine down from the medicine storage hopper 46, and a medicine guided by the flow-down hose 47. , And a drug delivery mechanism 48 for delivering the drug by a predetermined amount. Further, the medicine dispensing device 45 is configured such that the medicine storing hopper 46
The drug delivery mechanism 48 is supported by a support frame 49 extending further rearward, and the fertilizer delivery mechanism 23
The slide mechanism 11
Is operated to slide up and down integrally with the fertilizer application device 12. As shown in FIG. 7 and FIG. 8, the medicine feeding mechanism 48 is provided with a medicine applying roll case 50 detachable from the fertilizing roll case 27, and the opening when the medicine applying roll case 50 is mounted on the fertilizing roll case 27. It is composed of a drug delivery roll 51 facing the 27a, a brush 52 sliding on the outer peripheral surface of the drug delivery roll 51, and the like. The cover 44 is removed from the fertilization roll case 27, and the fertilization roll case 27 and the drug application are performed. By connecting the roll case 50 with the bolt, it is possible to easily attach the roll case 50 to the fertilizer feeding mechanism 23. The fertilizer roll case 27 and the drug roll case 5
By releasing the bolt connection with the nut 0 and removing the medicine feeding mechanism 48 from the fertilizer feeding mechanism 23, the fertilizer feeding roll 29 and the drug feeding roll 51 can be easily exposed. That is, maintenance work such as cleaning of the fertilizer feeding roll 29 and the chemical feeding roll 51 can be performed quickly. In addition, the code | symbol 53 in FIG.
A shim for filling a gap between the ferrule 7 and the drug application roll case 50. Reference numeral 54 in FIGS. 3 and 7 indicates that the nut cannot be rotated by being adhered to the fertilizer roll case 27 with the nut for bolt connection being fitted therein. 7, a reference numeral 55 in FIG. 7 denotes a stay extending between the fertilizing roll case 27 and the medicine applying roll case 50, and a reference numeral 56 in FIG. 3 denotes a medicine feeding mechanism coupling when the medicine feeding mechanism 48 is removed. This is a cap for filling the bolt holes of FIG. As shown in FIG. 8, the drug delivery roll 5
1 is a fixed roll 51A rotatably supported around the axis P2 via a bush 57 in a drug dispensing roll case 50,
The dispensing roll case 50 is rotatable around the axis P2, and is relatively rotatable in a state in which the slide roller 51B is slidably supported in a direction along the axis P2 and the fixed roll 51A. It is constituted by a screw shaft 51C supported and screwed with the slide roll 51B, and the like. The rotating operation of the adjustment dial 51D fixed to the screw shaft 51C causes the axial center P2 of the slide roll 51B with respect to the fixed roll 51A to rotate. By performing the slide adjustment by the screw feed of the fixed roll 51A,
The width in the direction of the axis P2 of the medicine dispensing concave portion 51a formed between the first and second slide rolls 51B can be changed, whereby the medicine dispensing amount can be adjusted. The driving of the drug delivery mechanism 48 will be described. As shown in FIGS. 5 and 6, of the drug delivery mechanisms 48 connected to the respective fertilizer delivery mechanisms 23, FIG.
A common drive shaft 58 centering on the axis P2 is inserted through the medicine delivery rolls 51 of the two medicine delivery mechanisms 48 located on the left side so that torque can be transmitted to the respective fixed rolls 51A. The drug delivery rolls 51 of the two drug delivery mechanisms 48 located on the right side each have a common drive shaft 58 centered on the axis P2 and a respective fixed roll 51A.
Is inserted so as to be able to transmit torque. A drive shaft 58 centering on the axis P2 is fixed to the fixed roll 51 on the drug delivery roll 51 of the drug delivery mechanism 48 located at the center.
A is inserted to transmit torque. Each drive shaft 58 is connected to the movable frame 17 of the slide mechanism 11.
It is pivotally supported by a more extended bracket 36. Gears 59 that mesh with the large-diameter gear 37 of the fertilizer feeding mechanism 23 are attached to one end of each drive shaft 58 so as to be integrally rotatable. That is, as shown in FIGS. 1 and 5, the medicine delivery roll 51 of the medicine delivery mechanism 48 is driven by the power (rotation in the counterclockwise direction in FIG. 1) from the rotating shafts 4a of the respective planting transmission cases 4. Force) is applied to the planting mechanism 6 or the operating arm 42, the push / pull member 43, the operating arm 40, the rotating shaft 38, the small diameter gear 39, the large diameter gear 37, and the gear 5.
9 to the respective drive shafts 58, thereby being driven to rotate at a constant speed in the counterclockwise direction in FIG. 7, whereby the respective drug storage hoppers by the drug delivery mechanism 48 are provided. The medicine can be fed out from 46. As shown in FIG. 1, FIG. 5 and FIG. 7, the powdery drug delivered by the drug delivery mechanism 48 is guided to the funnel 24 of the fertilizer applicator 12 by the guide body 60, and is fed from the fertilizer delivery mechanism 23. The fed-out granular fertilizer joins with the funnel 24 and the downflow hose 25 serving as a common downflow path and flows down, and is supplied to the fertilizer application groove through the lower opening 25a of the downflow hose 25 serving as a common discharge port. ing. As a result, the powdery or granular drug that easily adheres to and stays in the flow-down path can be smoothly supplied to the fertilization groove by the flow-down action of the granular fertilizer. [Another embodiment] As the fertilizer application device 12 to which the drug application device 45 is attached,
It is not limited to the one for five-row planting, and may be one that is not moved up and down by the slide mechanism 11. As shown in FIG. 9, the left and right fertilizer storage hoppers 2
An insertion hole h for inserting the downflow hose 47 may be formed in each section of the fertilizer storage hoppers 21 and 22 so that the medicine storage hopper 46 can be provided in each section of the fertilizer storage hoppers 21 and 22. In this case, each of the medicine storage hoppers 46 is a partition plate 2 that partitions the inside of each of the fertilizer storage hoppers 21 and 22.
1a and 22a are connected and fixed. Incidentally, when the drug application device 45 is removed, the insertion hole h is closed by a cap (not shown). In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a seedling planting apparatus; FIG. 2 is a rear view of a fertilizing apparatus; FIG. 3 is a vertical sectional side view of a main part of the fertilizing apparatus showing a configuration of a fertilizer feeding mechanism and a funnel; 4 is a vertical sectional rear view of the main part of the fertilizer applicator showing the structure of the fertilizer feeding mechanism and the funnel. FIG. 5 is an upper side view of the fertilizer applicator showing the mounting state of the fertilizer apparatus. Rear view [FIG. 7] A longitudinal section side view of a main part of a fertilizer apparatus showing a configuration of a medicine feeding mechanism [FIG. 8] A vertical section rear view of a main part of a drug applying apparatus showing a configuration of a medicine feeding mechanism [FIG. 9] Drug in another embodiment 24 is a vertical cross-sectional view of the fertilizer storage hopper showing the interior state of the storage hopper. [Description of References] 24 Downflow path 25 Downflow path 25a Outlet 27 Fertilizer roll case 27a Opening 29 Fertilizer feed roll 50 Drug feed roll case 51 Drug feed roll

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Tanaka 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (56) References JP-A-4-16109 (JP, A) JP-A-62 -239907 (JP, A) Fully open 60-87507 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00 302 A01C 15/00 A01M 9/00

Claims (1)

(57) [Claim 1] A maintenance opening (2) is provided in a fertilizer roll case (27) provided with a fertilizer feeding roll (29).
7a) is a fertilizer applicator provided so as to be openable and closable, comprising: a medicine feeding roll (5) facing the opening (27a) when mounted on the fertilizer roll case (27).
A drug application roll case (50) provided with 1) is provided detachably with respect to the fertilization roll case (27) ;
The drug application roll case (50) is added to the roll case (27).
In the state of wearing, the fertilizing roll case (27) and
Common feeding empty from the medicine roll case (50)
A gap is formed and the fertilizer is fed from the manure feeding roll (29).
The fertilizer discharged and the drug delivery roll (51).
And the powdered and granular drug fed out from the common flow path (2)
4) Merge at (25) and from common outlet (25a)
Fertilizer application that is configured to be sent out .