JPH11215904A - Nozzle device for fertilizer application - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the height above the ground level of members other than fertilizer application nozzles when driving fertilizer application nozzles into the ground and extend the range for regulating the fertilizer application interrow space interval in a fertilizer application machine for applying a fluid fertilizer forcedly fed from a pump into the ground with the vertically moving fertilizer application nozzles provided on both sides of a mobile machine body. SOLUTION: This fertilizer application nozzle device is obtained by integrally composing the fertilizer application nozzles 13 and a pump so that the lifting and lowering can be regulated integrally with a power transmitting part, installing guide plates 14 having a guide groove 15 having the opened lower end on both sides of a transmission case 16, arranging link arms 40 having the upper parts thereof engaged through two or more guide rollers 41 with the guide grooves 15 so that the rolling can be carried out and the lower parts thereof freely rotatably and axially attached to fertilizer application nozzle base parts 13a so as to be movable in the direction different from the moving loci of the fertilizer application nozzles 13, providing springs 43 for returning the fertilizer application nozzles 13 to the neutral positions between lateral extending parts of the guide plates 14 and the fertilizer application nozzle base parts 13a and further making the length of a rod 33 for regulating the attaching positions of the guide plates 14 freely expand and contract.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer applying vertically movable fertilizer nozzles provided on both sides of a traveling machine body to fertilize fluid fertilizer pumped from a pump into the ground at predetermined intervals. More specifically, the present invention relates to a fertilizer application nozzle device of the fertilizer applicator.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Patent Publication No.
As shown in Japanese Unexamined Patent Application Publication No. 5-74221 and Japanese Unexamined Utility Model Publication No. 5-74221, a vertically moving fertilizer nozzle provided on both sides of a traveling machine body is provided. A fertilizer applicator equipped with a point-like fertilizer that applies fertilizer to the ground at predetermined intervals, and a front support is erected on the traveling body, and a substantially horizontal lateral toolbar is mounted on the front support. A fertilizer application nozzle device of a fertilizer is already known in which the point-like fertilizer is mounted on both ends of the tool bar so as to be capable of laterally tilting adjustment.

[0003]

However, in such a conventional fertilizer applicator, a point-like fertilizer is mounted on a toolbar attached to the front support, and the injection depth is adjusted by raising and lowering a stabilizer wheel. The attitude of the traveling machine tilts back and forth, the angle of the fertilizer nozzle with respect to the ground changes, and work is unstable, and the ground clearance at the bottom of the guide plate that moves the fertilizer nozzle up and down interferes with crops, The work was unstable due to a small range of lateral tilt adjustment of the nozzle.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and uses a vertically moving fertilizing nozzle (13) provided on both sides of a traveling body (1) to feed a pressure from a pump (35). In a fertilizer that fertilizes fluidized fertilizer into the ground, a power transmission unit (12) that drives the fertilization nozzle (13) up and down is provided, and a transmission case (16) that covers the power transmission unit (12) is provided. , Fertilizer nozzle (13) and pump (3
5), the fertilizer application nozzle (13) and the pump (35) are configured so as to be able to move up and down integrally with the power transmission unit (12), and guides having lower ends opened on both sides of the transmission case (16). Guide plate (14) having groove (15)
The link arm (40), the lower part of which is axially attached to the fertilizer nozzle base (13a) and the upper part of which is supported by the guide plate (14), is moved in a direction different from the movement locus of the fertilizer nozzle (13). And the link arm (40) is rollably engaged with the guide groove (15) via two or more guide rollers (41), and the fertilizer application nozzle (13) returns to the neutral position. A spring (43) is provided between the lateral extension (14b) of the guide plate (14) and the fertilizer application nozzle base (13a).
The above-mentioned problem has been solved by making the length of the rod (33) for mounting angle adjustment of 4) extendable and contractible.

(Operation) With the above structure, when the work clutch is engaged while the fertilizer is running in the furrow of the field, the power from the engine (4) passes through the power transmission unit (12) and passes through the fertilizer nozzle (13). ) Is moved up and down along the guide groove (15) of the guide plate (14) via the guide roller (41) and the link arm (40), and when the fertilizer application nozzle (13) is driven into the ground, The liquid fertilizer pumped from the pump (35) is fertilized under the ground at predetermined intervals.

When the work clutch is disengaged, the power from the engine (4) is cut off, and the fertilizing nozzle (13) returns to the neutral position by the urging force of the spring (43).

[0007] Further, by expanding and contracting a rod (33) provided inside the guide plate (14), the mounting position of the guide plate (14) is adjusted, and the fertilizer application interval of the fluid fertilizer is changed. Can be.

Note that the reference numerals in parentheses are for comparison with the drawings, but do not limit the configuration of the present invention.

[0009]

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

Next, an embodiment of the present invention will be described in detail based on a preferred embodiment shown in the drawings. First, Figure 1
In FIG. 4, reference numeral 1 denotes a traveling body of the fertilizer applicator, and an engine 4
The fertilizer tank 5 and the fuel tank 6
And so on. 7 is a safety frame, 8 is a cover body, 9 is a fertilizer receiving plate. A tail wheel 10 is mounted on the rear end of the body frame 3, and an operation handle 11 is erected above the tail wheel 10.

Reference numeral 12 denotes a power transmission unit from the engine 4;
Are fertilizing nozzles provided on both left and right sides of the machine body, and a fertilizing nozzle 13 interlocked with the power transmission unit 12 is provided with a guide plate 14.
Up and down along the guide groove 15. A transmission case 16 covers the power transmission unit 12.
The fertilizer application nozzle 13 is attached via the power transmission unit 12.

The power transmission unit 12 includes a transmission case 17
Input shaft 18 and power transmission shaft 19 on the power transmission unit 12 side.
Are linked via a belt transmission mechanism 20, and the transmission shaft 19 is connected via a chain transmission mechanism 22 to a crankshaft 21 provided on the upper side of the transmission case 16. 23 is a chain sprocket provided on the crankshaft 21. Reference numeral 24 denotes a link arm for connecting the input shaft 18 and the transmission shaft 19, and reference numeral 25 denotes a tension pulley of the belt transmission mechanism 20. The tension pulley 25 is connected to an operation lever 26 provided on the operation handle 11 by a wire 27. Operating lever 26
, The power from the engine 4 is interrupted.

As shown in FIGS. 1 to 4, the operation handle 11 is composed of two wide-spaced pipe handles provided at a low position of the driving operation unit. At a high position on the pipe 11a,
A loop handle 11b narrower than the bar handle is provided upright.

A rotating shaft 29 of a crank arm 28 is connected to both ends of the crank shaft 21 via a joint 30, and a connecting rod 31 connected to the crank arm 28.
The fertilizer application nozzle 13 is attached to the tip of the nozzle.

FIG. 5 (a) and FIG.
As shown in (b) and (c), the guide plate 14 is supported, and two guide rollers 41 supported at one end of the link arm 40 engage with the guide grooves 15 of the guide plate 14. ing.

A projecting rod 13a of the fertilizing nozzle 13 is slidably fitted into the other end of the link arm 40.
1 and the link arm 40 and the guide roller 4 via the crank arm 28 and the connecting rod 31.
1, the fertilizing nozzle 13 is connected to the guide groove 1 of the guide plate 14.
5 along a predetermined movement trajectory.

The guide groove 15 of the guide plate 14 is shown in FIG.
As shown in (b) and (b), the lower portion is opened, so that the guide roller 41 can be easily taken in and out of the guide groove 15, and
At the position where the fertilizer application nozzle 13 is driven into the ground, the lower end of the opening is formed at a position higher than the position of the protruding rod 13a, so that the ground height below the guide plate 14 is increased.

The opening is connected to the front and rear by a connecting plate 14a at a position where it does not prevent the guide roller 41 from being taken in and out, and is reinforced.

Reference numeral 32 denotes a vertically swingable pipe attached to the transmission case 16, and reference numeral 33 denotes a slidable rod inserted through the pipe 32.
4 is pivoted inside.

The rod 33 is provided with a plurality of positioning holes 33a for set bolts 34 for fixing the pipe 32 and the rod 33. As shown in the right half of FIG. The fertilizer application interval by the nozzle 13 can be adjusted.

This adjustment is performed simultaneously for the left and right fertilizer application nozzles 13.
2, the inner ends of the left and right rods 33 are formed so as not to interfere with each other even when the fertilizer application interval is minimized.

A mounting plate 14b projects outward from the upper portion of the guide plate 14 toward the rear.
A spring 43 is stretched between the lower end and the fertilizer application nozzle 1
3 is always biased to the neutral position.

Reference numeral 35 denotes a plunger type pump connected to the fertilizer tank 5 via a fertilizer feeding pump 36, and the fertilizer delivery side of the pump 35 is connected to the upper end of the fertilizer nozzle 13 via a hose 37.

The pump 35 is fixed to the back of the transmission case 16 of the power transmission unit 12 and
3 and the pump 35 can be adjusted up and down integrally with the power transmission unit 12.

Further, the transmission case 16 is moved up and down while maintaining a constant posture, so that the fertilizer nozzle 13 and the pump 35 can be adjusted up and down integrally with the power transmission unit 12 covered by the transmission case 16. I have.

Reference numeral 50 denotes an engine switch provided on the operation handle 11, reference numeral 51 denotes a stopper for fixing the height of the tail wheel 10,
52 is a return hose of fertilizer, and 53 is a balance weight of the body.

The safety frame 7 is mounted on a support pipe 55 projecting from the engine frame 54 as shown in FIG. 2, and the safety frame 7 supports the fertilizer tank 5, the fuel tank 6, the cover body 8 and the like. The support structure has been simplified.

Next, the operation of the present embodiment will be described.

With the above-described structure, when performing the fertilizing operation, the operating wheel grips the operating handle 11 and travels through the ridges while driving the traveling wheel 2, and if the work clutch is engaged, the crankshaft 21 is engaged. The fertilizer nozzle 13 moves up and down with the rotation of. Then, when the fertilizer application nozzle 13 enters the ground, the fertilizer is sent out, and the fertilizer is applied in the soil at predetermined intervals along the ridge at a predetermined interval.

When the work clutch is disengaged at the time of turning on the ridge or at the end of the work, the power of the engine 4 is cut off, and the fertilizing nozzle 13 is actuated by the urging force of the spring 43.
Return to the neutral high position.

When changing the fertilization depth according to the growing condition of the crop or the type of fertilizer, the fertilizer application nozzle 13 and the pump 35 are connected to the power transmission unit 1 covered with the transmission case 16.
Since the lifting and lowering can be integrally adjusted together with 2, the body can be adjusted to an appropriate fertilization depth while maintaining the body in a stable working posture without tilting the body by adjusting the tail wheel as in the related art.

The fertilizer nozzle 13 which moves up and down along the guide groove 15 of the guide plate 14 can change its vertical movement locus by changing the shape of the guide groove 15, so that it can be changed in accordance with work conditions such as running speed. The driving angle of the fertilizer nozzle 13 into the ground can be freely adjusted.

By replacing the set bolt 34, the fertilizer application interval of the fertilizer nozzle 13 can be easily adjusted.

[0034]

According to the first aspect of the present invention, there is no guide roller at the base of the fertilizing nozzle, the fertilizer application nozzle does not interfere with the crop, and mud does not adhere to the guide roller even when the fertilizing nozzle is driven deep.

According to the second aspect of the present invention, since two or more guide rollers are provided and are rollably engaged with the guide grooves, the relative positions of the link arms supporting the guide rollers with respect to the guide grooves are determined, and the pair of fertilizing nozzles is provided. The ground angle is always constant, and stable fertilizer application is possible.

According to the third aspect of the present invention, since the lower end of the guide groove is opened, it is easy to put the guide roller into and out of the guide groove, and the ground height of the lower end of the guide plate can be increased.

According to the fourth aspect, the spring for returning the fertilizer nozzle to the neutral position is provided between the lateral extension of the guide plate and the fertilizer nozzle base, so that the fertilizer nozzle can return to the neutral position independently. In addition, since the guide plate and the fertilizer application nozzle move integrally when adjusting the lateral angle of the guide plate, the relative positional relationship does not change, and it is not necessary to adjust the spring length every time the ridge width changes.

According to the fifth aspect, since the length of the rod for adjusting the mounting angle of the guide plate is made freely expandable and contractible, the adjustment range of the rod can be shortened. Can be avoided.

[Brief description of the drawings]

FIG. 1 is an overall side view of a fertilizer applicator.

FIG. 2 is a side view of the fertilizer application mechanism.

FIG. 3 is an overall rear view of the fertilizer applicator.

FIG. 4 is a plan view of the fertilizer applicator.

5 shows an operation diagram of a fertilizer application nozzle, (a) is a side view of a fertilizer application nozzle neutral position, (b) is a side view of a fertilizer application nozzle lower position, (c) is a rear view of a fertilizer application nozzle neutral, lower position. is there.

[Explanation of symbols]

 Reference Signs List 1 traveling body 4 engine 10 tail wheel 11 operation handle 12 power transmission unit 13 fertilizing nozzle 14 guide plate 15 guide groove 16 transmission case 28 crank arm 31 connecting rod 40 link arm 41 guide roller

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masanori Ishikawa 667 Idai-cho, Oji-machi, Higashi-Izumo-cho, Yatsuka-gun, Shimane 1 Inside Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Inside Mitsubishi Agricultural Machinery Co., Ltd.

Claims (5)

[Claims] Claims: 1. A fertilizer device provided on both sides of a traveling machine body for vertically moving a fertilizer nozzle, which fertilizes fluid fertilizer pumped from a pump into the ground, wherein a power transmission unit for vertically driving the fertilizer nozzle is provided. A fertilizer nozzle and a pump are attached to a power transmission case covering the power transmission unit, and the fertilization nozzle and the pump are integrally adjustable with the power transmission unit so as to be vertically movable. Guide grooves are provided on both sides of the power transmission case. A guide plate is provided.On the other hand, a link arm whose lower part is axially attached to the base of the fertilizer nozzle and whose upper part is supported by the guide plate is arranged so as to be movable in a direction different from the movement trajectory of the fertilizer nozzle. A fertilizer application nozzle device, which is rollably engaged with the guide groove via a guide roller. 2. The fertilizer application nozzle device according to claim 1, wherein two or more of the guide rollers are provided and are rotatably engaged with the guide grooves. 3. The fertilizer application nozzle device according to claim 1, wherein the lower end of the guide groove is opened. 4. The fertilizer nozzle device according to claim 1, wherein a spring for returning the fertilizer nozzle to a neutral position is provided between a lateral extension of the guide plate and a fertilizer nozzle base. 5. The fertilizer application nozzle device according to claim 1, wherein a length of a rod for adjusting a mounting angle of the guide plate is provided inside the guide plate, the length of the rod being adjustable.