JPH0837854A - Fertilizing device - Google Patents

Abstract

PURPOSE:To provide a fertilizing device reduced in manufacturing cost along with being advantageous in terms of its maintenance. CONSTITUTION:In this fertilizing device so designed as to provide a fertilizing roll case 27 equipped with a fertilizer delivery roll 29 with an opening 27a for maintenance in an openable way, the fertilizing roll case 27 is detachably furnished with an agrochemical-applying roll case 51 equipped with an agrochemical delivery roll 52 falling to such a status as to face on the opening 27a in such furnishing, integrally with a hopper 49 to reserve an agrochemical delivered by a relevant roll 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer applicator having a fertilizer roll case equipped with a fertilizer feeding roll and having an opening for maintenance openable and closable.

[0002]

2. Description of the Related Art A fertilizer application apparatus is provided in a seedling planting device of a rice transplanter for performing the fertilizing work simultaneously with the seedling planting work of the rice planting machine of the rice transplanter. As disclosed in Japanese Patent Laid-Open No. 4-335805, the fertilizer application apparatus is provided with a separately configured chemical application apparatus and is interlockingly connected through a support frame, etc. There was one that made it possible to perform both work and drug administration work.

[0003]

However, according to the above-mentioned prior art, the connecting structure between the fertilizer applicator and the drug applicator becomes large, the manufacturing cost increases, and the attaching and detaching of the drug applicator to the fertilizer applicator is troublesome. As a result, there is a disadvantage that maintenance of the fertilizer applicator and the drug applicator is disadvantageous.

An object of the present invention is to reduce the manufacturing cost and to provide a drug delivery device with a structure advantageous in terms of maintenance.

[0005]

In order to achieve the above object, in the present invention, a fertilizer application is provided with a fertilizer roll case provided with a fertilizer feeding roll, in which a maintenance opening is openably opened and closed. A medicine applying roll case having a medicine feeding roll that is in a state of facing the opening when being attached to, integrally with a medicine storage hopper that stores the medicine fed by the medicine feeding roll,
The fertilizer roll case is detachably attached.

[0006]

According to the present invention, when the medicine application roll case is attached to the fertilizer application case of the fertilizer application, the maintenance opening provided in the fertilizer application case is opened, and
The fertilization roll case and the medication roll case can be brought into close contact with each other by making the medicine feeding roll of the medication roll case face the opening, so that the fertilization roll case and the medication roll case can be easily connected by a connecting tool such as a bolt. Can be connected to. When removing the fertilizer roll case from the fertilizer roll case, simply disconnect the fertilizer roll case from the fertilizer roll case with a connecting tool such as a bolt and close the maintenance opening provided in the fertilizer roll case. Can be done easily with. Moreover, since the drug storage hopper is configured to be attached to and detached from the fertilizer application roll case integrally with the drug application roll case, there is no need to provide a support structure for attaching the drug storage hopper to the fertilizer application device, and There is no need to attach the hopper to the fertilizer applicator. That is, it is possible to eliminate the inconvenience that the connecting structure and the supporting structure become large and the manufacturing cost increases, and the inconvenience of attachment and detachment becomes troublesome. In addition, when the medicine application roll case is attached to the fertilizer roll case, the fertilization roll case and the medicine application roll case form a common feeding space, so that each roll case forms each feeding space. In comparison with the case of performing the above, it is possible to make the fertilizer application device compact with the medicine application roll case attached and to reduce the manufacturing cost. Furthermore, by separating the chemical application roll case from the fertilization roll case by simply releasing the connection between the fertilization roll case and the chemical application roll case described above, it is possible to easily expose the respective feeding rolls, and therefore, in terms of maintenance. Can be advantageous.

[0007]

Therefore, according to the present invention, it is possible to reduce the size of the fertilizer application apparatus in the state where the medicine application roll case is mounted, to reduce the manufacturing cost, and to provide the application apparatus with an advantageous structure in terms of maintenance. It can be installed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a side surface of a seedling planting device 1 for five-row planting, which is connected to a rear portion of a traveling body of a riding type rice transplanter. The seedling planting device 1 includes a feed case 2, which is connected to a riding type traveling body (not shown) through an elevating link mechanism, a support frame 3 extending leftward and rightward from the feed case 2, and a rear side of the support frame 3. The planted transmission case 4 extending in three rows toward the plant, the seedling mount 5 that reciprocates laterally with a constant stroke with respect to the planted transmission case 4, and the seedlings are taken out from the lower end of the seedling mount 5 one by one. It is composed of a planting mechanism 6 that is planted by planting, and a leveling float 7 that levels the mud surface of the field. The planting mechanism 6 includes a rotary case 8 connected to a rotary shaft 4a provided at a rear portion of the planting transmission case 4, a support case 9 rotatably supported by both ends of the rotary case 8, and a support case 9 respectively. The planting nail 10 provided in the
As shown in FIG. 2, it is arranged in a pair on the left and right for the planted transmission cases 4 located on the left and right, and on the right side for the planted transmission case 4 located in the center. There is.

As shown in FIGS. 1 and 2, the seedling planting apparatus 1
A planting mechanism 6 is provided above the rear part of the plant via a slide mechanism 11.
The fertilizer application device 12 is supported so as to be slidably moved up and down between a work position located immediately above the planting mechanism 6 and a non-working position separated from just above the planting mechanism 6 to the upper front side. The slide mechanism 11 includes a support bracket 13 provided upright on each of the left and right planted transmission cases 4, a slide rail 14 extending from the support bracket 13 toward the front upper side, and a horizontal installation across the left and right slide rails 14. Horizontal frame 15,
Movable frame 1 having guide rollers 16 guided by slide rails 14 and supporting fertilizer application device 12
7, a wire 18 laid over the horizontal frame 15 and the movable frame 17, and an air cylinder 19 that lifts and urges the movable frame 17 via the wire 18. Engagement holes 14a are formed at both upper and lower ends of the slide rail 14, and an engaging portion (not shown) of the lock operation tool 20 provided on the movable frame 17 is provided.
The fertilizer application device 1 by engaging with the engaging hole 14a at the upper end
2 can be fixed to the non-working position, and the fertilizer application device 12 can be fixed to the working position by engaging with the engaging hole 14a at the lower end. At the non-working position of the fertilizer application device 12, the lower end of the seedling placing table 5 is opened.
The remaining seedlings can be easily taken out from the seedling mounting table 5 at the end of the planting work.

The fertilizer application device 12 includes a left-side fertilizer storage hopper 21 which is divided into two left and right parts, a right-side fertilizer storage hopper 22 which is divided into three left and right central parts, and left and right fertilizer storage hoppers 21. Fertilizer feeding mechanism 23, which is continuously provided below the respective compartments 22 and which delivers a predetermined amount of granular fertilizer from each compartment, a funnel 24 continuously provided below the fertilizer feeding mechanism 23, and a fertilizer feeding mechanism 23. By a downflow hose 25 that guides the fertilizer that has flowed down through the funnel 24, and a grooving device 26 that forms a fertilization groove on the mud surface of the field and that supplies the fertilizer guided by the downflow hose 25 to the fertilization groove. It is configured. The fertilizer feeding mechanism 2 is attached to the movable frame 17 of the slide mechanism 11.
3 are supported and connected, and the fertilizer storage hopper 21 of the fertilizer application device 12 is operated by the operation of the slide mechanism 11.
22, the fertilizer feeding mechanism 23, and the funnel 24 are integrally slid up and down.

As shown in FIGS. 3 and 4, the fertilizer feeding mechanism 23 includes a fertilizer roll case 27, and left and right bosses 28.
Fertilizer feeding roll 29 rotatably supported around the axis P1 via the shafts, a shutter plate 30 formed in a curved shape across the left and right bosses 28 and along the outer peripheral surface of the fertilizer feeding roll 29, and a fertilizer feeding roll. 29
It is configured by including a brush 31 that slidably contacts the outer peripheral surface of the. The fertilizer feeding roll 29 is a roll main body 29A externally fitted to a drive shaft 32 composed of a hexagonal shaft centering on the shaft core P1 so as to be able to transmit torque, a sleeve 29B externally fitted to the drive shaft 32 so as to be relatively rotatable, and a sleeve. It is constituted by a movable roll 29C screwed to 29B, and the roll body 2 is rotated by rotating the sleeve 29B.
By performing slide adjustment by screw feeding in the axial center P1 direction of the movable roll 29C with respect to 9A, the width in the axial center P1 direction of the fertilizer feeding recessed portion 29a formed between the roll body 29A and the movable roll 29C can be adjusted. Can be changed,
This allows the amount of fertilizer to be fed out to be adjusted. The shutter plate 30 is the operation lever 3
By the swinging operation of 3, it is possible to switch between an open state in which the supply of fertilizer to the concave portion 29a of the fertilizer feeding roll 29 is allowed and a closed state in which the supply of fertilizer to the concave portion 29a of the fertilizer feeding roll 29 is blocked. ing. The brush 31 is for measuring the amount of the fertilizer swept out from the concave portion 29a of the fertilizer feeding roll 29 by sliding contact with the outer peripheral surface of the fertilizer feeding roll 29.

A pair of front and rear fertilizer outlets 2 are provided on the funnel 24.
4a is formed, and a flow path switching valve 34 that switches a fertilizer flow state between a state in which fertilizer is taken out from the front fertilizer outlet 24a and a state in which fertilizer is taken out from the rear fertilizer outlet 24a is installed. . As shown in FIG. 1, a downflow hose 25 is communicatively connected to the front fertilizer outlet 24a, and the flow condition of the fertilizer is changed from the front fertilizer outlet 24a by operating the flow path switching valve 34 during the planting work. By switching to a state where fertilizer is taken out, the fertilizer can be fed down into the fertilizer ditch. In addition, the connection between the front fertilizer outlet 24a and the downflow hose 25 is released from the communication connection state between the front fertilizer outlet 24a and the downflow hose 25 as the fertilizer application device 12 slides upward by the slide mechanism 11. It is configured to be. 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 passage switching valve 34 is operated so that the fertilizer can flow through the rear fertilizer outlet 24a. By switching to, the left and right fertilizer storage hoppers 21,2
The fertilizer remaining in 2 can be easily taken out. A leak net 36 for removing fine powder contained in the fertilizer fed by the fertilizer feeding roll 29 is inclined just below the fertilizer feeding roll 29 on the upstream side of the flow path switching valve 34 in the funnel 24 in the fertilizer flowing direction. The fertilizer fed in the posture and fed by the fertilizer feeding roll 29 is guided by the guide plate 3 provided in the lower portion of the fertilizer application case 27.
It is designed to be supplied to the upper part of the leakage net 36 by means of 7. Below the leakage net 36, a container 38 for collecting fine powder that has leaked from the leakage net 36 is detachably provided.

The driving of the fertilizer feeding mechanism 23 will be described. As shown in FIGS. 1 and 2, the fertilizer feeding mechanism 23 includes a rotary shaft 4 provided at the rear of the planted transmission case 4.
The power from a is transmitted by being transmitted to the drive shaft 32 of the fertilizer feeding mechanism 23. As the drive shaft 32, a torque is applied to the fertilizer feeding rolls 29 of the two fertilizer feeding mechanisms 23 located on the left side of the fertilizer feeding mechanisms 23 that are continuously provided below the respective compartments of the left and right fertilizer storage hoppers 21 and 22. With the communication
There are one that transmits torque to the fertilizer feeding rolls 29 of the two fertilizer feeding mechanisms 23 located on the right side, and one that transmits torque to the fertilizer feeding rolls 29 of the fertilizer feeding mechanism 23 located in the center. Each drive shaft 32 has a bracket 3 extending from the movable frame 17 of the slide mechanism 11 with respect to each drive shaft 32.
It is pivotally supported by 9. On one end side of each drive shaft 32,
A large-diameter gear 40 is integrally rotatably attached. A rotation support shaft 41 arranged in parallel with each drive shaft 32 is pivotally supported by the bracket 39, and one end side of each rotation support shaft 41 has a small diameter that meshes with the large diameter gear 40. The gears 42 are integrally rotatably attached, and operation arms 43 are extended at both ends of each. The operation arm 43 on one end side of the rotation support shaft 41 extends in a state in which the rotation phase is shifted by about 90 degrees with respect to the operation arm 43 on the other end side. On the other hand, the planting mechanism 6 connected to the rotary shaft 4a of the planted transmission case 4 is provided with a connecting plate 44 that extends between the support shafts of the support case 9 at both ends of the rotary case 8.
Further, the operation arm 4 is provided at the left end of the rotating shaft 4a in the central planting transmission case 4 not provided with the left planting mechanism 6.
5 is extended. The swing end of the operating arm 43 and the connecting portion of the connecting plate 44 or the swing end of the operating arm 45 are pivotally connected via the push-pull member 46.
The distance between the rotation axis of the operation arm 43 and the swing end,
The distance between the rotation axis of the connecting plate 44 and the connecting portion, and
The distance between the rotation axis of the operation arm 45 and the swing end is set to the same length.

That is, with the above-mentioned structure, the power (rotational force in the counterclockwise direction in FIG. 1) from the rotary shaft 4a of each of the planted transmission cases 4 causes the planting mechanism 6 or the operation arm 45, the push / pull member. 46, operation arm 43, rotary support shaft 4
3, the small diameter gear 42 and the large diameter gear 40 are transmitted to the respective drive shafts 32, so that the fertilizer feeding rolls 29 of the respective fertilizer feeding mechanisms 23 are moved to the positions shown in FIGS.
In this case, the fertilizer is continuously driven to rotate in a clockwise direction in the above manner, whereby the fertilizer can be fed from the left and right fertilizer storage hoppers 21 and 22 by the fertilizer feeding mechanism 23. As shown in FIG. 5, the push-pull member 46 includes a link portion 46A pivotally supported by the operation arm 43 and a rod portion 46B pivotally supported by the connecting plate 44 or the operation arm 45. The link 46A and the rod 46B are connected to each other to operate the fertilizer feeding mechanism 23 by operating the connector 46a provided in the above, and the link 46A and the rod 46B are separated to separate the slide. The mechanism 11 can be switched to a state in which the fertilizer application device 12 can be slid up and down.

As shown in FIG. 3, the fertilizer roll case 27
An opening 27a for maintenance is provided on the back surface of the so as to be openable and closable. Usually, a cover 47 which is detachable by engaging and disengaging the fertilizer roll case 27 is attached to the opening 27a. By removing the cover 47, maintenance such as cleaning of the fertilizer feeding roll 29 is performed. It can be done.

As shown in FIGS. 5 and 6, the fertilizer application device 12
Is provided with a drug applying device 48 configured to be detachable from the fertilizer applying device 12. This medicine applying device 48 stores a medicine storage hopper 49 for storing powdered medicines such as insect repellents and disinfectants, a medicine supply mechanism 50 for supporting the medicine storage hopper 49 and for supplying a predetermined amount of medicine from the medicine storage hopper 49, and the like. It is composed by. Dispensing device 4
8, the medicine feeding mechanism 50 is connected to the fertilizer feeding mechanism 23, and is slid up and down integrally with the fertilizer application device 12 by the operation of the slide mechanism 11.

As shown in FIGS. 6 and 7, the medicine feeding mechanism 50 includes a medicine applying roll case 51 which can be attached to and detached from the fertilizer applying case 27, and the opening when the medicine applying roller case 51 is attached to the fertilizer applying case 27. 27a, and a brush 53 that is in sliding contact with the outer peripheral surface of the medicine feeding roll 52. The cover 47 is removed from the fertilization roll case 27, and the flange of the fertilization roll case 27 is formed. Two
By engaging the engaging portion 51a of the medicine applying roll case 51 with the swing operation type engaging metal fitting 54 provided on the lower portion of the medicine applying roll case 51, the medicine storage hopper 4 is provided.
The fertilizer feeding mechanism 23 can be easily attached to the unit 9 without using a tool. The engagement fitting 54 is biased in the engagement direction by a spring (not shown). Further, by releasing the engagement between the engagement fitting 54 and the flange 27b and the engagement portion 51a and the flange 27b against the bias of the spring, the fertilizer can be easily used without using a tool. The medicine feeding mechanism 50 can be detached from the feeding mechanism 23 integrally with the medicine storage hopper 49, whereby the fertilizer feeding roll 29 and the medicine feeding roll 52 can be exposed. That is, maintenance work such as cleaning of the fertilizer feeding roll 29 and the medicine feeding roll 52 can be promptly performed.

As shown in FIG. 7, the medicine feeding roll 5
2 is a fixed roll 52A that is rotatably supported on the drug roll case 51 via a bush 55 around an axis P2;
A slide roll 52B supported by a drug roll case 51 so as to be rotatable around an axis P2 and slidably movable in a direction along the axis P2, and relatively rotatable while being retained by a fixed roll 52A. It is constituted by a screw shaft 52C that is supported and screwed with the slide roll 52B, and the like, and is rotated in the direction of the axis P2 of the slide roll 52B relative to the fixed roll 52A by the turning operation of the adjustment dial 52D fixed to the screw shaft 52C. The fixed roll 52A
The width of the drug feeding recess 52a formed between the slide roll 52B and the slide roll 52B in the direction of the axis P2 can be changed, whereby the drug feeding amount can be adjusted.

The driving of the medicine feeding mechanism 50 will be described. As shown in FIG. 5, each fertilizer feeding mechanism 2 is driven.
In the medicine feeding rolls 52 of the two medicine feeding mechanisms 50 located on the left side of the medicine feeding mechanism 50 connected to 3, the common drive shaft 56 centered on the shaft center P2 is provided for each fixed roll 52A. Is inserted so that torque can be transmitted. Two drug feeding mechanisms 5 located on the right side
A common drive shaft 56 centered on the shaft core P2 is inserted through the medicine feeding roll 52 of 0 so that torque can be transmitted to each fixed roll 52A. The drive shaft 56 centered on the shaft core P2 is inserted through the medicine feeding roll 52 of the medicine feeding mechanism 50 located at the center so that torque can be transmitted to the fixed roll 52A. Each drive shaft 56
Is pivotally supported by a bracket 39 extending from the movable frame 17 of the slide mechanism 11. The large diameter gear 4 of the fertilizer feeding mechanism 23 is provided on one end side of each drive shaft 56.
A gear 57 that meshes with 0 is attached so as to be integrally rotatable.

That is, as shown in FIGS. 1 and 5, the medicine feeding roll 52 of the medicine feeding mechanism 50 has power (rotation in the counterclockwise direction in FIG. 1) from the rotation shaft 4a of each planted transmission case 4. Force), the planting mechanism 6 or the operation arm 45, the push / pull member 46, the operation arm 43, the rotation support shaft 41, the small diameter gear 42, the large diameter gear 40, and the gear 5.
6 is transmitted to the respective drive shafts 56 via the drive shafts 7 so as to be continuously rotated at a constant speed in the counterclockwise direction in FIG. 6, whereby the respective drug storage hoppers by the drug delivery mechanism 50 are driven. The medicine can be delivered from 49.

As shown in FIGS. 1, 5 and 6, the medicine delivered by the medicine delivering mechanism 50 is guided to the back surface of the guide plate 37 by the guide body 58, and the side wall 24A on the back surface side of the funnel 24. It is adapted to be supplied downwardly toward the flow path switching valve 34 in a state of following. In other words, the drug in the form of powder is prevented from being supplied downward to the leak net 36 and collected in the container 38. Flow path switching valve 34
The chemicals supplied to the fertilizer are merged and flowed down at the lower part of the funnel 24 and the flow-down hose 25, and are supplied to the fertilizer groove from the lower opening 25a of the flow-down hose 25 serving as a common discharge port. There is. As a result, the powdery and granular chemicals that tend to adhere and accumulate in the flow-down path can be smoothly flowed down and supplied to the fertilizer application groove by the flow-down action of the granular fertilizer.

As shown in FIGS. 3 and 6, the side wall 24A on the back side of the funnel 24 has a spraying agent (herbicide, etc.).
Spraying route 2 for discharging and spraying water toward the field surface
4B, and a state in which the medicine functions as the side wall 24A on the back side of the funnel 24 and guides the medicine flowing down along the side wall 24A toward the flow path switching valve 34, and the side wall 24.
A switching valve 59 is provided which is configured to be swingable and switchable to a state in which a part of A is opened and the medicine flowing down along the side wall 24A is guided toward the spray path 24B. That is, by operating the switching valve 59 to switch the flow-down path, chemicals for field embedding such as insect repellents and disinfectants are combined with the fertilizer to the fertilizer ditch which becomes the mud in the field. The chemicals for spraying such as herbicide can be smoothly supplied to the surface of the field from the outlet 24b of the spraying route 24B.

[Other Embodiments] The fertilizer application device 12 to which the drug application device 48 is attached is not limited to a five-row planting device, and may be one that is not vertically moved by the slide mechanism 11.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of seedling plant

[Figure 2] Rear view of fertilizer application

FIG. 3 is a side view of a longitudinal section of a main part of a fertilizer applicator showing the structure of a fertilizer feeding mechanism and a funnel.

FIG. 4 is a vertical cross-sectional rear view of the main part of the fertilizer application apparatus showing the structure of the fertilizer feeding mechanism and the funnel.

FIG. 5 is a side view of the upper part of the fertilizer applicator showing how the drug applicator is attached.

FIG. 6 is a vertical cross-sectional side view of a main part of the fertilizer applicator showing the configuration of a medicine feeding mechanism.

FIG. 7 is a vertical cross-sectional rear view of the main part of the drug delivery device showing the configuration of a drug delivery mechanism.

[Explanation of symbols]

 27 Fertilizer Roll Case 27a Opening 29 Fertilizer Feeding Roll 49 Drug Storage Hopper 51 Drug Applying Roll Case 52 Drug Feeding Roll

Claims (1)

[Claims] 1. An opening (2) for maintenance is provided in a fertilizer roll case (27) provided with a fertilizer feeding roll (29).
7a) is provided so as to be openable and closable, and the opening (27) is provided when the fertilizing roll case (27) is mounted.
The drug delivery roll case (51) provided with the drug delivery roll (52) facing the a) is integrated with the drug storage hopper (49) for storing the drug delivered by the drug delivery roll (52). A fertilizer applier that is detachably attached to the fertilizer roll case (27).