JPH03285606A - Fertilizer applicator - Google Patents

Abstract

PURPOSE:To suppress running resistance with pipes at the maximum and always stably carry out excellent deep application of a fertilizer by arranging delivery pipes at positions where various travel ruts of running wheels, running auxiliary wheels or a furrowing wheel, etc., pass. CONSTITUTION:Lateral-row fertilizer application is carried out on the side of each planted row with a lateral-row fertilizer applicator 37 in rice transplanting operation and deep application of a fertilizer is performed at a deeper position than that in lateral-row fertilizer application in the central part of the left and right lateral row fertilizer application positions where floats 23 and 24 pass with a fertilizer deep applicator 38. In the aforementioned deep application of the fertilizer, since the fertilizer conveyed with each screw conveyor 55 is forcibly released to a furrow formed with each delivery pipe 54, sure fertilizer application is carried out without clogging the interior of the pipe 54 with the fertilizer or mud. Since the driving of the screw conveyor 55 is also taken out of a chain case 57 placed in nearly the intermediate part of a transmission case 56, even the screw conveyor 55 is automatically stopped in discontinuing the planting work by disconnecting a planting clutch to prevent loss of the fertilizer and improve work accuracy.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is designed to form deep grooves in the rice field using a feeding pipe when a traveling vehicle such as a rice transplanter is moving, and to convey the rice by a screw conveyor built into the feeding pipe. The present invention relates to a fertilization device for dispersing fertilizer into the cultivation furrow.

"Conventional technology" Fertilizer is transported and spread using a screw conveyor J:
For example, Japanese Utility Model Application Publication No. 59-21831 discloses such means.

"Problems to be Solved by the Invention" However, in the case of the above-mentioned conventional means, the screw conveyor and this outer pipe are only used to transport fertilizer, and it is necessary to separately install a trencher, etc. There were some structural complexities such as:

``Means for Solving the Problems'' Therefore, the present invention forms a trench for deep fertilization in a rice field, and equips a traveling vehicle with a fertilizer delivery pipe for distributing fertilizer into the trench. On the other hand, the above-mentioned delivery pipe is arranged at a position where the tracks of various running wheels such as running wheels, auxiliary wheels for running, or grooving wheels pass.

``Function'' According to the present invention, deep plowing grooves are formed directly in the field surface using the fertilizer delivery pipe, and fertilizer is transferred into the formed plowing grooves using, for example, a screw conveyor installed in the pipe. This is a device that performs spraying, and therefore has a compact structure, and the feed pipe is placed in a position that always passes through the tracks of one of the various wheels or the groove cutting wheel, so that it can remove weeds and straw on the field. The inconvenience of fertilization getting wrapped around the delivery pipe and increasing running resistance can be eliminated by sinking or compacting it with wheels or trenching wheels, making it possible to always perform stable and good deep fertilization. This is what I did.

"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings. Figure 1 is an explanatory plan view of the feeding pipe section, Figure 2 is a side view of the whole, and Figure 3 is a plan view of the same. , the rear end of the body frame (3) on which the engine (2) is mounted is attached to the transmission case (4).
), and the front wheels (6) for running in paddy fields are attached to both front sides of the transmission case (4) via the axle case (5).
At the same time, the rear wheels (8) for running in paddy fields are attached to both rear sides of the transmission case (4) via the transmission case (7).
) to support. Spare seedling stands (10) are installed on both sides of the bonnet (9) that covers the engine (2), etc., and the vehicle body cover (12) forming the step (11) is installed.
) to cover the transmission case (7), etc., install a driver's seat (13) on the top of the vehicle body cover (12) 4-1, and provide a steering handle (14) in front of the driver's seat (13). .

In addition, (15) in the figure is a planting part equipped with a seedling stand (16) for multi-row planting, a plurality of planting claws (7), etc.
A forward-tilting seedling stand (16) with a high front and a low rear is attached to the lower rail (18).
The central and left and right planting cases (20al (20b) [20bl] are supported by the central and left and right planting cases (20b) through guide rails (19), and the planting arm (21) and the rotary case (22) are supported by the left and right reciprocating sliders, and are also cranked. Attach the planting claw (17) to the planting case (20a) (20b) through the planting case (20a) (20b). Float (23) (24) f24
1 is supported via a planting example depth adjustment link (25) and a planting depth adjustment fulcrum shaft (26), and each of the planting cases (20a) (20b) (20b) is connected to a planting drive case. It is connected to the planting mission case (27), which is
Using a two-point linkage mechanism (30) including a top link (28) and a lower link (29), the planting section (15) is attached to the rear side of the rice transplanter (1) via this example mission case (27).
), and the hydraulic cylinder (31) that raises and lowers the planting part (15) is connected to the rear of the rice transplanter (1) and the top link (28).
The planting part (15) is raised and lowered by the expansion and contraction operation of the hydraulic cylinder (31), while the planting part (15)
5) is lowered to land each float f23) (24), and from the seedling platform (16), which is moved back and forth from side to side, plant the seedlings for each plant in sequence by using the claw (17). It consists of

In addition, (32) in the figure is the travel gear shift lever, (33) is the planting lift lever, (34) is the planting depth sensitivity adjustment lever, (35)
) is the ludge pedal for driving, and (361f361 are the left and right brake pedals).

As shown in FIGS. 4 to 6, a side row fertilization device (37) and a deep layer fertilization device (38) are installed on the rear side of the planting section (15).
Each fertilizer application device (37) (38)
Fertilizer tank (39) (40) and fertilizer dispensing case (
411 [42] in each planting case (20a) (20b
l (20b) Post (43) f44)
At the upper end of the horizontal frame (45) (46) and each arm (4
71 (481).The fertilizer tank (39) of the side row fertilization device (37) is a set of two rows, and one fertilizer tank (39) has two on the left and right.
Fertilizer release body f50 of F491, equipped with row fertilizer feeding cases (41) (41), and installed on both left and right sides of the bottom of each float f231 (24) (24)
) (50) through the feeding hose (51) (51) to the feeding case (41+ fertilizer feeding port f52 of (41))
f52) is connected, and the emitter (5Gl (
The structure is such that the fertilizer in the fertilizer tank (39) discharged from the fertilizer tank (39) is sequentially dropped and covered with soil by the soil plate (53) located behind this.

As shown in FIG. 7, the deep fertilization device (38) has a set of left and right furrowers (49) (one fertilizer delivery pipe (54), which is a furrower, is disposed at the rear of the left and right furrowers). The pipe (54) has a screw conveyor (55) for forcibly conveying the fertilizer inside, and the planting drive transmission case (56) that interconnects the planting case (20al f20b) (20b1). ) The power take-off shaft (58) of the PTO chain case (57) is interposed approximately in the middle of the PTO chain case (57).
, a flexible shaft (59) into which a flexible wire (59a) is inserted into the screw conveyor (55);
The screw conveyor (55) is driven by a power take-off shaft (58) branched from a transmission shaft (56a) inserted through the transmission case (56).

A fertilizer inlet (54a) provided at the feeding start end side of the feeding pipe (54) is connected to a fertilizer feeding port (60) of the feeding case (42) via a feeding hose (61). The fertilizer introduced into the pipe (54) is forcibly conveyed to the opening at the rear end by the screw conveyor (55), and the fertilizer is formed by the pipe (54).
] The structure is such that it is sequentially released into the building.

Further, the feeding pipe (54) is connected to each planting case (20a).
) (201)) Mounting frame (62) fixed to the rear end of the
The pipe connecting arm (6
The proximal end of the arm (64) and the claw side frame (62) are supported between the other end of the arm (64) and the claw side frame (62). )・Upper and lower spring catch f
68) [69)・A compression spring (71) is interposed through the adjustment port 1-(70), and during work, the rear end of the pipe (54) is held at a certain height (231(24+) from the bottom surface).
While holding the pipe (54) in an inclined position in a state where it protrudes downward by approximately 120 mm, in the event of an abnormality such as a pushing force acting from below on the rear end of the pipe (54), the float f23) (24) resists the spring (70). ) The pipe (54) is retracted above the lower surface to prevent damage.

Furthermore, a flexible shaft (59) that transmits power to the screw conveyor (55) is connected to each planting case f20.
a) Flow 1- (23) at the position directly below (20+))
(24), and the left and right link members (25a) of the link (25) supporting the float (23+ (24)) on the fulcrum shaft (26) (25
a) Float [23) by inserting it between f
24) is configured to perform compact power transmission without adversely affecting the support structure.

As shown in FIG. 8, the feeding hose (61) connecting the feeding case (42) and the feeding pipe (54) is also connected to the mounting frame (62), which is the mounting member of the pipe (54), and the connecting arm (64). ) is inserted through the approximate center of the left and right flill plates (62a) f6 of the mounting frame (62).
2a) and between the left and right arm members (6) of the connecting arm (64).
4a) (64a) to achieve a compact structure and the shortest distance between the feeding case (42) and the feeding pipe (54).
) is connected to prevent fertilizer clogging during this process.

By the way, as shown in Fig. 1 (left and right side floats (24) whose rear ends protrude rearward from the center float (23))
A pipe fertilization groove (72) is formed in the float (24) by cutting out approximately the center of the rear end, and the feeding pipe (54) provided on the float (24) is inserted into the float (24) through the groove (72). It is configured to project downward and position the delivery pipe (54) at the maximum forward position.

Furthermore, as shown in Figures 1 and 9, the center float (
The feeding pipe (54) provided at 23) is located at a position where it passes through the groove cutting wheel (73) provided in the rice transplanter (1), and the feeding pipe (54) provided at Zydeflow)-(241).
The groove wheels (73) and the rear wheels (8) are placed in positions that pass through the wheel marks of the rear wheels (8), and when there are clods of soil or weeds, these groove wheels (73) and the rear wheels (8) can be used to sink or tread into the field. It is configured to minimize running resistance of the delivery pipe (54) in a hardened state.

The groove ring (73) is attached to a support arm (75) of the groove ring (73) to a reinforcing pipe (74) that connects the final case (7a) [7a] on both the right and left sides of the transmission case (7).
) A fixing bracket (77) of an elevating link (76) whose base end is movable up and down, and which is connected to the hydraulic cylinder (31) to operate the three-point link mechanism (30) up and down.
) to the support arm (75) via a connecting link (78).
) are linked together. In other words, the support frame (7
5) into the long hole (79) of the connecting link (78) and the shaft (80).
and a rod (82) between the fixed spring seat (81) of the connection link (78) and the shaft (80).
A compression spring (83) is interposed through the planting part (15).
During the lowering operation, the cutting groove ring (73) is forced into contact with the ground on a circular surface, and during the raising operation of the planting part (15), the cutting groove ring (73) also follows this and rises upwards from the first surface of the mouth. This is configured so that the grooving wheel (73) does not become an obstacle when the aircraft turns. Also, such a groove ring (
Flow 1-f23) during vertical movement of 73)
(There is no interference with 24+.

As shown in Figures 4 and 10, the fertilizer tank (39
1 (401 has fertilizer replenishment sensors (84al (84bl (84c) and (
85a), (85b), and (85c), respectively, and a replenishment sensor (8) for each tank (39) of the side row fertilization device (37)
4al (84b) (84cl with deep fertilization device (3
8) for each replenishment sensor (85a) of the corresponding tank (40).
) (Connect 85bl (85c) in parallel, left, center or right tank f39] (40
), the corresponding left, center, or right tank replenishment lamp (86), (87), or (88) is turned on as appropriate, and at the same time an alarm buzzer (88) is turned on.
9). Note that (90) is a power supply, and (91) is a main switch.

In addition, in a rice transplanter (1) equipped with such a deep fertilization device (38), the ground resistance against this fertilization device (38) is extremely large, and the sensitivity of the planting depth of the rice transplanter (1) is also large. Side row fertilization equipment (37) to influence
It is necessary to change the sensitivity setting with the sensitivity adjustment lever (34) between when using the deep fertilizer application device and when using the deep fertilizer application device (38). It is composed of

In addition, a compression spring (7) supporting the delivery pipe (54)
1), the adjustment nut (68a) fixes the upper and lower spring seats f68) f69) to the adjustment bolt (70).
) (69a), the delivery pipe (5
4), the depth of fertilization and the initial load of the compression spring (71) are changed. Also (42al
is the roll drive shaft of the feeding case (42).

This embodiment is configured as described above, and during rice planting work, the side row fertilization device (37) applies side row fertilizer to the sides of the planting row, and the floats (23) and (24) pass on the left and right sides. The deep fertilization device (3) is installed in the center of the side row fertilization position.
8), it is deeper than side row fertilization (the depth of side row fertilization is approximately 40 mm due to the bottom surface of the float, while deep layer fertilization is approximately 1.20 m).
m) Deep fertilization is carried out at the location.

In this deep fertilization, the fertilizer conveyed by the screw conveyor (55) is forcibly discharged into the trench formed by the delivery pipe (54). Fertilizer can be applied reliably without clogging with fertilizer or mud.

Further, since the screw conveyor (55) is driven by being taken out from the chain case (57) which is interposed approximately in the middle of the transmission case (56), there is no need for a separate drive system. The power extraction shaft (58) from the case (57) is attached to each planting case (20a) (2
0b) Since it is installed on the front side of the unit clutch for stopping each row installed inside the rear end and on the rear side of the planting clutch installed inside the planting mission case (27), it is possible to Even when planting 1 is stopped, the screw conveyor (55) rotates without stopping, which prevents the pipe (54) from clogging with fertilizer or mud, and when the planting of all rows is interrupted due to the planting clutch being disengaged. The screw conveyor (55) is also automatically stopped to prevent fertilizer loss and improve work accuracy.

Furthermore, during the fertilization work using the feed pipe (54), the pipe (54) is connected to the rear wheel (8) or the groove cutting wheel (73).
Fertilizer is applied while moving along the tracks of the running wheels.
Even if there are foreign matter such as weeds on the rice field, the rear wheels (8) and the ditch wheel (73) are used to sink or tamp down the weeds, etc., and the weeds are removed from the feed pipe (54). This prevents inconveniences such as winding and increasing running resistance.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a fertilizer dispensing pipe (54 ) is provided on the traveling vehicle (1), and the delivery pipe (54) is arranged at a position where various traveling wheels such as the traveling wheels (8), auxiliary wheels for traveling, or groove cutting wheels (73) pass. Therefore, a deep plowing groove is directly formed in the rice field by the fertilizer delivery pipe (54), and a screw conveyor (5) installed inside the pipe (54) is inserted into the formed plowing groove.
5) Fertilizer can be spread with this, and the structure can be made compact, and the track of any one of the various wheels (8) or the grooving wheel (73) can be used to feed out the pipe (54). By passing through the field, even if there are foreign substances such as weeds on the rice field, inconveniences such as sinking or compacting them and wrapping around the feeding pipe (54) are prevented, and the traveling resistance caused by this pipe (54) is reduced. It has remarkable effects, such as making it possible to always perform stable and good deep layer fertilization with maximum suppression.

[Brief explanation of drawings]

Fig. 1 is a plan view of the feeding pipe section, Fig. 2 is a side view of the whole, Fig. 3 is a plan view of the same, Fig. 4 is a side view of the planting section, and Fig. 5 is a rear view of the fertilizer application device section. 6 is an explanatory view of the same part, FIG. 7 is a cross-sectional explanatory view of the feeding pipe section, FIG. 8 is a perspective explanatory view of the feeding pipe section, FIG. 9 is a side explanatory view of the groove-forming ring section, and FIG. Figure 10 is an electrical circuit diagram. (1)... Rice transplanter (driving vehicle) (8)... Rear wheel (wheel) (54)... Feeding pipe

Claims (1)

[Claims] In addition to forming trenches for deep fertilization within the rice field, the traveling vehicle is equipped with a fertilizer delivery pipe for distributing fertilizer into the trenches, and various types of equipment such as traveling wheels, auxiliary wheels for traveling, or grooving wheels, etc. A fertilization device characterized in that the feed pipe is arranged at a position where the running wheel traces pass.