JPH0416110A - Fertilization device - Google Patents

Abstract

PURPOSE:To carry out fertilization suitable for the conditions of operation such as field condition and kinds of fertilizer, by sliding a single operation shaft left and right and adjusting an amount of fertilizer supplied to the lise for shallow layer and that for deep layer. CONSTITUTION:When an operation shaft 60 is worked right, all first operation gears 61a are engaged with all gears 58a of supply rolls 15 for shallow layer fertilization. On the contrary, when the operation shaft 60 is worked left, all second gears 61b are meshed with all gears 58b of the supply rolls 15 for deep layer fertilization. When the operation shaft 60 is placed at a left and right neutral position, the first and the second operation gears 61a and 61b are not engaged with the gears 58a and 58b, respectively, and are in a neutral state. A bracket 62 at one end of the operation shaft 60 is equipped with a change lever 63 to slide the operation shaft 60 left and right. A handle 66 attached to the tip of the operation shaft 60 is worked and rotated to control an amount of fertilizer to be supplied.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fertilization device that can simultaneously perform shallow layer fertilization and deep layer fertilization in paddy fields.

[Conventional technology]

Conventionally, a fertilization device capable of performing shallow layer fertilization and deep layer fertilization simultaneously with rice planting work has been disclosed, for example, in Japanese Patent Application Laid-Open No. 2-9310.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, since the structure is such that shallow layer fertilizer and deep layer fertilizer are fed out using the first and second half of a common feeding roll, it is not possible to adjust the feeding amount of each fertilizer independently. In order to force the adjustment, unreliable adjustment means such as changing the contact pressure of the scraping brush that slides on the roll's outer circumferential surface to limit the amount of fertilizer that is scraped out from the feeding recess on the roll's outer circumferential surface is necessary. It was necessary to take troublesome measures such as removing the roll or replacing the feed roll itself.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate such problems and provide a fertilization device that can arbitrarily adjust the amounts of shallow layer fertilizer and deep layer fertilizer and that is easy to handle.

[Means to solve the problem]

In order to achieve the above object, in the present invention, a feed-out roll for shallow layer fertilization and a feed-out roll for deep-layer fertilization are arranged side by side on the same axis, and a feed-out amount adjustment device provided on each feed-out roll is provided. An operating shaft equipped with a first operating gear and a second operating gear that can engage with the gears, respectively, is disposed in parallel with the group of feeding rolls, and the first operating gear is a gear for adjusting the feeding amount of the feeding roll for shallow layer fertilization. a first adjustment state in which the second operating gear meshes with the feeding amount adjustment gear of the feeding roll for deep fertilization, and a neutral state in which the first and second operating gears are not all engaged. In particular, the operating shaft is configured to be slidable.

[Function] According to the above configuration, by sliding the single operating shaft left and right, the first adjustment state in which the operating shaft is linked with the gear for adjusting the feeding amount of the feeding roll for shallow layer fertilization and the deep layer It is possible to select a second adjustment state in which the gear for adjusting the feed-out amount of the feed-out roll for fertilization and the operating shaft are interlocked, and the feed-out amount of each fertilizer can be independently adjusted.

〔Effect of the invention〕

Therefore, according to the present invention, the amount of fertilizer delivered for shallow layers and the amount of fertilizer delivered for deep layers can be arbitrarily and accurately adjusted, depending on the working conditions such as field conditions and type of fertilizer. It is now possible to apply appropriate fertilizers.

In addition, since these adjustments are made using a single operating shaft, the structure is simpler than, for example, adjusting the delivery roll for shallow layer fertilization and the delivery roll for deep layer fertilization using separate operating shafts. Not only is it simple, but two types of adjustments can be made at the same location, making it easy to handle.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

Figure 1 shows the side view of the 6-row seedling planting unit connected to the rear of the riding rice transplanter.

The device for planting seedlings (1) is connected to the main body of the rice transplanter on the left side (not shown) via an elevating link mechanism.
The seedling stand (3) moves back and forth from side to side, and the three planting cases (4) extend rearward from the transmission case (2) for planting.
, Each planting is carried out by a case (4), a pair of seedling planting mechanisms (5) on both the left and right sides of the rear, and a float (6) for soil leveling.
), etc., and the seedling planting mechanism (5) includes a rotating case (7) that rotates forward at a constant speed around the horizontal axis (P).
), a claw case (9) with claws (8) is attached to both ends of the case so that the position can be changed, so that one rotation of the rotating case (7) will cause two plantings. It has become.

In addition, each planting is equipped with a clutch (1) at the base of the case (4).
0), and by selection operation of this clutch (10), the state of planting 2 rows, 4 rows, and 6 rows can be obtained.

Seedling planting configured as above is done at the rear of the device (1).
Fertilizer! (11) are connected and supported via a frame (12).

This fertilization device (11) is capable of fertilizing one layer of two rows in case (4) for one planting, applying fertilizer shallowly to the side of the row, and for planting at the rear of case (4). Fertilize deeply1
With deep fertilization of rows as one unit, each planting is carried out in cases (4).
Each fertilizer application device (10) is constructed by arranging three sets in parallel, and the three unit fertilizer application devices (10) will be described in detail below.

As shown in Figure 3, the inside of the hopper (13) for storing fertilizer installed at the top of the fertilizer application device (11) is divided into three compartments by left and right partition walls (14).
, (a) contains fertilizer for the shallow layer, and the central compartment (b)
In addition to storing fertilizer for deep layer, there is also a fertilizer dispensing mechanism (16) with a dispensing roll (15) installed at the lower end of each compartment (a) and (b), and a dispensing roll (15).
7) are installed respectively.

The fertilizer delivered from the left and right fertilizer delivery mechanisms (16) is fed out from the feed-out row (17) and the groove-cutting device (19) for shallow layer fertilization attached to the float (6) via the downstream hose (18).
The fertilizer is fed to the fertilization groove formed on the rice field by the 20-cropping ditcher (19), and the fertilizer fed out from the central fertilizer feeding mechanism (16) is fed to the feeding funnel (17) and the downstream hose (18). ) to the deep fertilization mechanism (20) and is fed into the fertilization groove formed by the disc-shaped embedded disc (21).

As shown in Fig. 3, the three feeding rolls (15) are mounted on a common feeding shaft (22) supported horizontally on the left and right, and this feeding shaft (22) and seedling planting are connected by a mechanism ( 5
) are interlocked and connected as follows.

An intermediate shaft (23) is horizontally mounted on the front side of the fertilizer dispensing mechanism (16) in parallel with the dispensing shaft (22).
23) and the feeding shaft (22) are occlusally interlocked by gears (24) and (25) attached to one end of each. Both ends of the intermediate shaft (23) are connected to the mechanism (5) for planting left and right seedlings, respectively.
) via crank link mechanisms (26a) and (26b), respectively.

Crank link machine! (26a), (26b) are
Driven arms (27a) attached to both ends of the intermediate shaft (23)
, (27b) and claw cases (9) at both ends of each pivot case (7).

(9) The drive arm (28a
), (28b) and the driven arm (27a), (
27b) and drive arm (28a), (28b)
push and pull rods (29a) pivotally connecting the (
29b), and the rotational phases of both crank link mechanisms (26a) and (26b) are set to differ by 90°.

Therefore, as the rotating case (7) continuously rotates forward at a constant speed, each of the three pressure rolls (15) continuously rotates backward at a constant speed.

By replacing the gears (24) and (25), the rotational speed of the rotating case (7) can be adjusted to
) can be changed in speed, and when the rotating case (7) is changed in speed to change between plants, the delivery roll (15) is also changed in speed, thereby making it possible to keep the amount of fertilizer applied per unit area of the field constant. I can do it. For example, when adjusting the distance between plants, the rotation speed of the feed roll (15) is increased and the rotating case (7)
When increasing the amount of fertilizer fed out per rotation, and conversely decreasing the spacing between plants, the feeding roll (15) is decelerated to reduce the amount of fertilizer fed out per rotation of the rotary case (7).

Next, the detailed configuration of the deep fertilization mechanism (20) will be explained based on FIGS. 9 and 10.

Each planting is carried out in an auxiliary case (3) at the upper rear end of the case (4).
1) is attached, and the rotating shaft (32) horizontally supported on this auxiliary case (31) and the drive shaft (33) of the planting rotation case (7) are interlocked and connected by a chain (34). At the same time, a transmission case (35) attached to the side surface of the auxiliary case (31) so as to be able to swing vertically is extended rearward, and the free end of the transmission case (35) is interlocked with the rotating shaft (32) via a chain (36). An embedded disk (21) is installed.

The outer circumferential surface of the embedded disc (21) has a recess for storing fertilizer!
(37) are formed in large numbers at a constant pitch in the circumferential direction, and inside each turning part (37) there is provided a fertilizer extrusion tool (39) which is biased to move back and forth by a spring (3B) so as to be able to move forward and backward in the radial direction. ing. And embedded disk (21)
At the center of is a cam (4) fixed to the transmission case (35) side.
0), and as the embedded disk (21) rotates forward, the support rod (39a) of the fertilizer extrusion tool (39) follows the outer peripheral surface of the fixed cam (40), so that the fertilizer extrusion tool ( 39) is adapted to be driven forward and backward. In other words, the fertilizer extruder (39) is in the retracted position from the upper fertilizer supply position where the embedded disc (21) is exposed above the field surface to the vicinity of the fertilizer discharge position within the field surface, and from the fertilizer discharge position to the vicinity of the fertilizer supply position. is an extrusion tool (39)
so that it is pushed out to the advanced position along the outer circumferential surface of the disk.
The shape of the cam (4o) is set.

In addition, there is a concave B (
A band-shaped guide (41) is provided and fixed to prevent the fertilizer supplied from leaking out. This guide (41)
is projected downward near the fertilizer discharge position to form a fertilizer discharge gap (S) between the outer peripheral surface of the disk and the guide (41), and the guide (41) is further extended to the rear of the disk. , is connected to a stay (42) extending from the transmission case (35). Furthermore, (43) in Figure 9
(44) is a mud removal scraper on the outer peripheral surface of the disk attached to the stay (42), and (41a) is attached to the inner surface of the guide (41) behind the gap (S). This is a scraper for discharging fertilizer.

A fertilizer guide (45) fixed to the transmission case (35) is installed at the fertilizer supply position of the deep fertilization mechanism (20). This fertilizer guide (45) has a rectangular tube shape elongated from front to back, and its upper end is connected to the flow hose (18).
is connected to via a bellows (46).

Furthermore, inside the fertilizer guide (45), a clogging prevention device (48) that can swing back and forth via a support shaft (47) is installed, and an arm attached to the outer end of the support shaft (47) is installed. (4
7a) and the rotating shaft (32) at the base end of the transmission case (35)
The drive arm (32a) attached to the protruding end of the guide is linked with the drive arm (32a) via the rod (49), so that the anti-clog tool (48) swings within the guide as the rotating shaft (32) rotates. There is.

In addition, the transmission case (35) is attached to the bracket provided at the rear of the case (4) (60) with a bolt with a knob (51).
(bracket)
The height of the disc can be adjusted in three stages using the three mounting holes (52a) provided in (60), and the top mounting hole (52b) can be used to lift it higher than the bottom surface of the 70-t (6). It is now possible to leave it there.

In addition, the above-mentioned bracket (60) can be slid up and down with respect to the fixed bracket (53) of the case (4) for planting.
In addition, it is supported by a spring (54) with downward bias, and when the embedded disc (21) collides with a foreign object in the field during fertilization work, the spring (54) along with the transmission case (35)
) so that it can retreat upwards.

The same fertilizer delivery mechanism (16) is used, and the structure for adjusting the delivery amount will be described below.

As shown in Fig. 4, the feed roll (15) has a roll main body (15a) which is externally fitted onto a hexagonal feed shaft (22) so as to be able to transmit torque, and is slidable in the axial direction relative to the roll body (15a). It consists of a possible movable roll R (15b),
By slidingly adjusting the movable roll part (15b),
Roll body (15a) and movable roll part (15b)
The width in the axial direction of the fertilizer feeding recess (56) formed between the fertilizer feeding recess (56) and the fertilizer feeding recess (56) is changed.

This movable roll part (15b) is threaded into an adjustment sleeve (57) fitted externally to the feed shaft (22) so as to be relatively rotatable, and by rotating this adjustment sleeve (57), the movable roll part (15b) 15b) is screwed in the axial direction, and a gear (58>) is fixed to the outer end of the sleeve for rotating the adjustment sleeve (57). Roll body (15a)
A spring ball (59) incorporated in is pressed, providing appropriate resistance to the relative rotation of both (15a) and (58).

The feeding roll (15) for shallow layer fertilization and the feeding roll (15) for deep layer fertilization are connected to one operating shaft (15) as follows.
60).

On the front side of each fertilizer feeding mechanism (16) is a front self-operation shaft (6
0) is supported so that it can slide left and right.

This operation shaft (60) is equipped with a payout roll (1) for shallow layer fertilization.
5), the first operation gear (61) can be engaged with the gear (58a) of
a) and a second operating gear (61b) that can engage with the gear (58b) of the feed roll (15) for deep fertilization are respectively fixed, and the operating shaft (60) can be slid to the right in Fig. 3. When operated, all first operating gears (61a)
is the gear (5) of the feed roll (15) for shallow layer fertilization.
8a), and conversely slide the operating shaft (60) to the left, all the second operating gears (62b) engage with the gears (58b) of all the deep fertilization feed-out rolls (15). However, when the operating shaft (60) is placed at the middle position between the left and right sides as shown in FIG.
Which gear (58a) is b)?

(58b) is also brought into a neutral state in which there is no occlusion.

As shown in FIGS. 7 and 8, a switching lever (63) for sliding the operating shaft (60) left and right is attached to a bracket ('62) that supports one end of the operating shaft (60).
) is provided. In other words, the tip of the arm (63a) extending from the base of the switching lever (63)
0) through an elongated hole (65), and the three states mentioned above can be obtained by swinging the switching lever (63) left and right. The feed amount of shallow layer fertilization can be adjusted by rotating the handle (66) provided at the tip of the operating shaft (60) while switching to shallow layer adjustment or deep layer adjustment by swinging the switching lever (63). Alternatively, the amount of feed for deep fertilization can be adjusted separately using the same operating shaft (60). In addition, the switching lever (63) consists of a spring ball (67) provided on the bracket (62) and a spring ball (67) provided on the arm (63a).
It can be held in the three switching positions by engagement with the recesses a (68). In addition, the handle (66) is biased toward the bracket (62) by the helical spring (69), and is elastically moved to the stored position by the leaf spring holder (70) provided on the bracket (62). Engaged and held.

In addition, the accompanying mechanism equipped to the fertilizer feeding mechanism (16) will be explained below.

(71) in Fig. 4 is a pointer fixed to the feeding shaft (22), and the main scale is engraved at a constant pitch in the axial direction on the outer periphery of the adjustment sleeve (57) at the outer end of the movable roller part (15b). Accurately check the axial position of the movable roller 1m (15b), that is, the amount of feedout, by reading the circumferential subscale attached to the outer end surface of the gear (58) with the pointer (71). is now possible.

(72) in Fig. 4 is an arc-shaped shutter plate rotatably installed along the outer periphery of the feed roll (15), and the boss (73) that supported this plate can be accessed from the outside by lever (74). By rotating the fertilizer, it can be switched between an open state for dispensing fertilizer and a closed state for preventing dispensing. In addition, this shutter plate (72) is bent only at the opening edge (72a) of the shutter plate so that the shutter plate (72) slides into contact with the outer circumferential surface of the roller so that the fertilizer powder does not get caught between the outer circumferential surface of the feeding roller (15) and the outer circumferential surface of the roller (15). ing.

In addition, (75) in Fig. 5 is a metering plan that slides on the outer peripheral surface of the feed roller (15) to restrict the inflow of fertilizer into the feed recess (37), and this brush (75) is installed. The base (75a) is fitted into and supported by the brush holder (76) from the front, and the contact with the outer circumferential surface of the roller can be adjusted by adjusting the forward and backward movement of the base (75a) from the rear of the holder using a screw (77).

The brush holder (76) itself can swing in and out around the fulcrum (78) and can be switched and held between the operating position shown in the figure and the fertilizer discharge position that is largely separated from the outer peripheral surface of the roller.

In addition, (79) in Fig. 5 is a removable opening/closing cover (80).
), (80) is a feeding row) (17) is a pair of front and rear fertilizer outlets, (81) is a flow path switching shutter, and the fertilizer feeding mechanism (16) for deep fertilization has a , connect the flow hose (18) to the rear fertilizer outlet (80), attach the cap (82) to the front fertilizer outlet (80), and install the fertilizer delivery mechanism (1) for shallow layer fertilization.
In 6), you will set it in the opposite way. When discharging the fertilizer remaining in the hopper (13), the brush holder (76) is swung backward as described above, the shutter (81) is switched, and the cap (82) is
) is removed and the feed roll (15) is rotated. Further, (83) in FIG. 4 is a leakage net for removing fine fertilizer powder contained in the fed fertilizer, and (84) is a container for collecting the fine powder.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the fertilizer application device according to the present invention, in which FIG. 1 is a side view of the seedling planting section, FIG. 2 is a side view of the feeding roll drive structure, and FIG. Figure 4 is a vertical front view of the fertilizer feeding mechanism, Figure 5 is a vertical side view thereof, Figure 6 is a rear view of the brush holder, Figure 7 is a side view showing the operating part of the operating lever for adjusting the feeding amount, Figure 8 is a rear view;
FIG. 9 is a side view of the deep fertilization mechanism, and FIG. 10 is a cross-sectional plan view of a portion thereof. (15)---Feeding roll, (58a), (
58b) ...--- Feeding amount adjustment gear, (61a
) -----... 1st operating gear, (61b)...
-Second operating gear, (60)...operating shaft.

Claims (1)

[Claims] A feed-out roll (15) for shallow layer fertilization and a feed-out roll (15) for deep layer fertilization are coaxially arranged side by side, and a feed-out amount adjusting gear is provided for each feed-out roll (15), (15). (58a) and (58b), an operating shaft (60) equipped with a first operating gear (61a) and a second operating gear (61b) that can engage with each other is disposed parallel to the group of feeding rolls, and The first gear (61a) meshes with the feed-out amount adjustment gear (58a) of the feed-out roll (15) for shallow layer fertilization.
The adjustment state and the second operating gear (61b) are the feed-out amount adjusting gear (58b) of the feed-out roll (15) for deep fertilization.
), and the first and second operating gears (
61a) and (61b) are not all engaged, the operating shaft (60) is configured to be slidable in a neutral state.