JPH03180112A - Fertilizing working machine - Google Patents

Abstract

PURPOSE:To make a machine body compact with eliminating a wasteful space by installing nozzles at symmetrical positions in left and right in a working machine and providing a power-transmitting part and a dividing valve, etc., between the left and right nozzles. CONSTITUTION:In fertilizing with a fertilizing working machine, a crank- operating part 20 is operated according to traveling of a transferring agricultural machine and fertilizing nozzles are vertically driven, then driven into a below soil layer, thus the fertilizer is supplied into the soil. In said case, nozzles 30 are installed at symmetrical positions in left and right in the working machine and a power-transmitting part 12 and a dividing valve 13, etc., are provided in a gap between the left and right nozzles 30 in rear view of the working machine, therefore, space is effectively utilized, thus the working machine is able to be constructed in smaller size.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a fertilizer application machine that is used by being attached to a mobile agricultural machine, and specifically relates to a deep topdressing fertilizer application machine that applies fertilizer to rhizome crops such as asparagus. Concerning the arrangement and structure of nozzles, power parts, etc.

(0) Prior Art Asparagus, which is a rhizome crop, is usually cultivated in fields for 5 to 10 years, harvested around March to May, and fertilized on the ground after harvest and during harvest preparation. However, asparagus has few roots on the surface layer, mainly located 10 to 30 cm below the surface layer, and the fertilization efficiency of fertilizing the soil surface was not very good. Therefore, a method of injecting fertilizer by driving a nozzle into the subterranean layer is also used.

(C) Problems to be Solved by the Invention By the way, as mentioned above, the fertilizer application machine that applies fertilizer by driving the nozzle into the subterranean layer is usually attached to the rear of a mobile machine, such as a tractor, to perform the fertilizer application work. It is necessary to balance the traveling speed of the tractor and the timing of driving the nozzle, and if the balance is poor, unreasonable force will be applied to the nozzle. Especially in hard fields with roots, it is necessary to maintain a balance between the driving speed of the tractor and the timing of driving the nozzle.
The work equipment itself requires a certain amount of strength in order to drive the nozzle into the right place. In addition, in order to drive the nozzle 30 cm below the ground, the operating range of the nozzle must be widened, and the working machine basically has a large shape. ,
It is necessary to fit the paste pump and power transmission part into the dead space of the work equipment as much as possible to make the work equipment as a whole more compact.Also, it is necessary to consider the front-to-back balance between the weight of the tractor and the weight of the work equipment, and the application of fertilizers to the edges of the field. Therefore, it is better to have the nozzle driving part as close to the tractor as possible.

Therefore, an object of the present invention is to provide a fertilizer application machine that solves the above-mentioned problems.

(d) Means for Solving the Problems The present invention has been made in view of the above-mentioned circumstances. For example, when shown with reference to FIG. 1 or FIG.
Fertilizer application machine (2) equipped with a nozzle (30) that is mounted on the machine and is driven approximately vertically by a crank operating part (20) to supply fertilizer, etc. stored in a tank (3) into the soil.
, the nozzle (30) is arranged in a position symmetrical to the work 48 (2), and the tank (3) is attached to the nozzle (30).
A distribution valve (13) for distributing fertilizer etc. stored in the distributing valve (13) and a power transmission section (12) for transmitting power to the distributing valve (13) and the crank operating section (20) are provided.
) and the power transmission part (12) are disposed between the left and right nozzles (30), (30) when viewed from the rear of the working machine (2).

(f) Function When fertilizer is applied in a field using the fertilizer application machine (2) based on the above configuration, the crank operating part (20) is activated as the mobile agricultural machine (1) travels, and the fertilizer application nozzle (30) is driven approximately vertically and driven into the ground to supply fertilizer into the soil.In this case, nozzles are arranged at symmetrical positions on the left and right sides of the work machine (2), and the work machine (2) In the rear view of
Since the power transmission part (12), the distribution valve (13), etc. are arranged in the gap between the left and right nozzles (30), (30), the space can be used effectively and the working machine (2) can be configured in a small size. I can do it. In addition, when viewed from the side of the work equipment (2), the power transmission part (12), distribution valve (13), etc. are arranged in the front part, and the driving position of the nozzle (30) is brought closer to the tractor (1), so that the overall As a result, the working machine (2) becomes more compact and the work can be carried out more stably.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the fertilizer application machine 2 has a top link 15.
It is attached to the rear of the tractor 1 so as to be movable up and down by a three-point link 15 consisting of a and two lower links 15b. The outer shape of the working machine 2 is approximately box-shaped, and a crank operating section 20 and a crank operating section 2 are provided at the rear thereof.
A nozzle 30 is disposed connected to the nozzle 30 and driven substantially vertically to discharge fertilizer into the ground. Further, in the front part of the working machine 2, as a power transmission part, a transmission case 12 having an input shaft 11 interlocked and connected to the PTO shaft of the tractor 1, a distribution valve 13 for distributing fertilizer to the nozzle 30, etc. are arranged. has been done.

The structure of the working machine 2 will be further explained with reference to FIGS. 1 to 3. A rectangular front frame 16 is provided at the front, and lower link frames extend vertically downward from the left and right sides of the frame 16. A lower link support pin 18b is fixed to the outside of the lower end of each frame 17, and a top link support pin 18a is fixed to the center of the lower part of the front frame 16. These support pins 18a and 18b are connected to the top link 15a and lower link 15b of the tractor 1 described above.

Furthermore, four upper frames 19a are fixed to the upper part of the front frame 16 at approximately equal intervals and extend in parallel toward the rear of the work equipment 2. The lower frame 19b extends horizontally. As shown in FIG. 2, a crank operating section 20 is fixed vertically across the rear ends of the upper frame 19a and the lower frame 19b, and as shown in FIG. They are arranged in four locations at approximately equal intervals.

The crank operating portion 20 has a rectangular parallelepiped crankcase 20a.
A shaft 22 is provided near the upper end of the case 20a, passing through the case 20a, and a sprocket 23 is attached to one end of the shaft, and a crank arm upper 25 is attached to the other end. .

On the other hand, six shafts 2 are located near the lower end of the crankcase 20a.
6 is provided, one end of the shaft 26 extends in the same direction as the direction in which the upper crank arm 25 of the shaft 22 provided near the upper end is attached, and the lower crank arm 27 is attached. The length of these upper and lower crank arms 25 and 27 is approximately 30 cm. Also, crank case 2O
Inside a, sprockets 21a and 21b are attached to the upper and lower shafts 22 and 26, respectively, and a chain is wound between these sprockets 21a and 21b.

In addition, the upper crank arm 25 and the lower crank arm 27
A nozzle arm 29 is pivotally mounted across the tip of each of the nozzle arms 29, and when the upper and lower crank arms 25 and 27 rotate synchronously by the operation of the crank operating section 20, the nozzle arms 29 are driven approximately in the vertical direction. be done. Further, a flexibility mechanism 32 is provided at the pivot point between the nozzle arm 29 and the lower crank arm 27, and the flexibility mechanism 32 allows the nozzle arm 29 to freely swing back and forth in the traveling direction. has been done. Further, the nozzle arm 29 can be divided into a base end portion 29a and a tip end portion 29b,
The distal end portion 29b is located below the lower crank arm 27 and is fixed to the base end portion 29a with a bolt 33. A nozzle 30 for discharging fertilizer into the subterranean layer is detachably fixed along the nozzle arm 29, and like the nozzle arm 29, the nozzle 30 can be divided into a base end portion 30a and a tip end portion 30b. The distal end portion 30b extends downward longer than the distal end portion of the nozzle arm 29, and has a length that is approximately in contact with the ground surface when the upper and lower crank arms 25 and 27 are positioned horizontally to the ground surface. It is. Furthermore, ribs 31 are fixed to the tip portion 30b of the nozzle 30 at the front and rear in the direction of movement of the working machine 2, to reduce the burden on the nozzle tip portion 30b when the nozzle 30 is driven into the ground. Further, a joint 35 is attached to the tip of the nozzle base end portion 30a, into which a hose 36 for injecting fertilizer is fitted.

The nozzles 30 interlocked and connected to these crank operating parts 20 are as shown in FIG.
Two nozzles 30 are arranged close to each other on the left and right sides, and the two nozzles 30 on the crank arm are arranged so as to sandwich the two nozzles 30 therebetween.
5.25 and a lower crank arm 27.27 are arranged, and these crank arms 25, 25, 27.
A crank operating section 20 is provided so as to sandwich 27 therebetween. That is, in the rear view of the working machine 2, there are groups of nozzles 30 on the left and right, and drive systems for the nozzles 30 on both the left and right sides are arranged so as to sandwich the nozzles 30 of the negative group.

On the other hand, the transmission case 12 having the input shaft 11 which is interlocked and connected to the PTO shaft of the tractor 1, which is a power transmission part for driving these crank actuating parts 20 and force-feeding fertilizer to the nozzle 30, is as described above. Front frame 1 of work equipment 2
It is attached to a horizontal frame 14 that extends to a lower link frame 17 that hangs down from the left and right sides of the frame 6. The transmission case 12
As shown in FIG. 5, the input shaft 11 has a bevel gear 50 fixed to its tip, which meshes with a driven bevel gear 52 fixed to a main shaft 51 rotatably supported perpendicular to the input shaft 11. are doing. A drive gear 53 is fixed to one end of the main shaft 51, and the shaft A is rotatably supported.
It meshes with a driven gear 54 fixed to. On the other hand, a driving gear 55 is also fixed near the other end of the main shaft 51, and meshes with a driven gear 56 fixed to a rotatably supported shaft 58. Further, a driving gear 57 is fixed to the shaft 58, and meshes with a driven gear 59 fixed to the rotatably supported shaft A. Furthermore, sprockets 40a and 40b are attached to both shafts A and B. The shaft A is for rotating a counter shaft 41 provided extending in the left-right direction of the working machine 2, and includes a large-diameter sprocket 41a attached to the counter shaft 41 and a sprocket attached to the shaft A. A chain is wound around between it and 40a. On the other hand, the shaft B is a shaft 2 that pumps the fertilizer stored in the tank to the nozzle 30 via the distribution valve 13.
It is for driving the paste pump 42 of the base, and is interlocked and connected to the pump 42.

As shown in FIG. 2, the transmission case 12 is disposed at the lower part of the front end of the working machine 2, and the distribution valve 13 is disposed at the upper part. Further, the countershaft 41 is disposed immediately behind the distribution valve, and the two paste tanks 42 are disposed beside the transmission case 12, as shown in FIG. In this way, when viewed from the back of the work machine 2, the left and right nozzles 30, 3 are arranged at symmetrical positions on the work machine 2.
The transmission case 12, the distribution valve 13, and the paste tank 42 are arranged between the two, and as shown in FIG.
1 to the front (and position the nozzle as close to the tractor as possible).

Note that the paste pump 42 may be placed in front of the transmission case 12 with the distribution valve 13 placed behind the countershaft 41.

Further, the countershaft 41 includes a crank operating portion 2.
Four sprockets 41b for driving the crankcase 20a are attached, and a chain 24 is wound between them and a sprocket 23 provided on the outside of each crankcase 20a. Then, as the countershaft 41 rotates, the crank operating section 20 operates, and the crank arm is rotated.
The lower portions 25 and 27 rotate, and the nozzle 30 is driven approximately in the vertical direction. In this case, the phase differences of the four nozzles 30 are adjusted to differ by 90 degrees in terms of the angle of the crank arm 25 when viewed from the side of the working machine 2, as shown in FIG. Therefore, as the counter shaft 41 rotates, instantaneously, only one of the nozzles 30 is driven into the ground, and the other nozzles 30 are either pulled out from the ground or placed on the ground. Thus, the balance of the working machine 2 is maintained during traveling work.

Further, the paste pump 42 is connected by a suction hose 5 to a paste tank 3 that stores fertilizer loaded on the front part of the tractor 1 shown in FIG. The paste tank 3 is supported by a support device 4 at the front of the tractor 1, as shown in FIG. The bottom of the support device 4 is a bracket 6 having a substantially U-shape when viewed from the side, and is attached to the engine frame 9 of the tractor 1 by means of a mounting member 8.
Fixed. Then, the adapter 7 is placed on the bracket 6, the paste tank 3 is placed on top of the adapter 7, and the paste tank 3 is hooked and fixed with a band 10.

The paste tank 3 is placed at the front of the tractor 1 in this way because when applying fertilizer to asparagus, it is necessary to apply a large amount of fertilizer. Otherwise, it will be difficult to install and there is a risk of heads up. Furthermore, since there is a risk of blocking the view if it is attached to the front part of the tractor 1, the height can be changed using the adapter 7.

Incidentally, instead of the adapter 7, the height may be adjusted using a ratchet and a hydraulic jack.

The paste tank and the paste pump 42 are connected by the suction hose 5 as described above, and piping is also provided between the discharge port of the pump 42 and the inlet of the distribution valve 13. The pump 42 pumps the fertilizer in the base tank 3 to the distribution valve 13 by rotating the shaft B of the transmission case 12.

Further, the distribution valve 13 is connected to the working machine 2 as shown in FIG.
Two distribution valves 13, 13 are installed vertically on the front frame 16 of the system, and each distribution valve 13, 13 has eight discharge ports. The distribution valve 13 has a rotating shaft protruding outward, a sprocket is attached to the protruding part of the rotating shaft, and a chain is wound between the sprocket attached to the counter shaft 41 and a small sprocket. In conjunction with the rotation of the counter shaft 41, the fertilizer pumped from the paste pump 42 is successively distributed to eight discharge ports. Further, as shown in FIG. 4, two adjacent discharge ports of each distribution valve 13 are short-circuited and connected to a fixed joint 43 provided at the top of the front frame 16 of the work 1112. has been done. The inlet of the fixed joint 43 is bifurcated, and piping is connected to the two distribution valves 13, and the fertilizer distribution of these two distribution valves 13 is synchronized. Further, a hose 36 is connected between the outlet of the fixed joint 43 and the joint 35 provided at the top of the nozzle 30.
The hose 36 is made of a flexible material.

Further, the hose 36 has one end connected to a fixed joint 43.
Since the other end is connected to a joint 35 provided at the top of the nozzle 30, the top of the nozzle 30 moves up and down and back and forth with the work, so the hose 36 also undulates with the movement. becomes. As a result, there is a possibility that the hose 36 may become entangled with other parts, so a pipe support guide 37 as shown in FIG. 2 is provided as a measure to alleviate this problem. The support guide 37 includes an arm 37a and an arm 37.
The base end of the arm 37a is pivotally supported on the upper frame 19a of the working machine 2 and is configured to be freely rotatable in the front and back direction. I support 36.

Furthermore, cage wheels 45 are attached to the left and right sides of the working machine 2. The wheels 45 are rotatably supported by a vertical frame 45a fixed to the lower frame 19b of the above-mentioned working machine 2 as shown in FIG. It is the same width as the wheel. Furthermore, a safety frame 46 is provided at the rear of the working machine 2.

Since this embodiment has the above-described configuration, when applying fertilizer below the soil to rhizome crops such as asparagus planted in a field, first, the fertilizer application machine 2 is attached to the tractor 1, and the fertilizer is applied in a straight line. The tractor 1 straddles the planted crops, and the working machine 2 is lowered and landed on the ground to travel.

Then, as the tractor 1 travels, the PTO shaft rotates,
Transmission case 12 of work machine 2 interlocked and connected to the PTO shaft
Since the input shaft 11 of the transmission case 12 rotates, the output shafts A and B of the transmission case 12 also rotate. When the output shaft A rotates, the counter shaft 41 rotates via the sprocket 40a, the chain, and the large diameter sprocket 41a. The rotation of the countershaft 41 drives the four crank operating parts 20 via the chain and sprocket 23, and the upper crank arm 25 and lower crank arm 27 attached to the malfunctioning part 20 are rotated.
are interlocked and synchronously rotated to drive the nozzle 30 approximately vertically in a vertical position.

On the other hand, the output shaft B of the transmission case 12 is connected to the paste pump 42.
The paste pump 42 is driven by the rotation of the output shaft B, and the paste fertilizer flowing from the paste tank 3 loaded at the front of the tractor 1 to the rear of the tractor by the rehose 5 is transferred to the paste pump 12. It reaches the suction part and is force-fed to the distribution valve 13 from the discharge port. The distribution valve 13 is interlocked with the rotation of the counter shaft 41 and distributes the paste fertilizer to eight discharge ports. The paste fertilizer discharged from the outlet of the distribution valve 13 is transferred to the front frame 1.
The water passes through the nozzle 30 through a fixed joint 43 fixed to the nozzle 6, a hose 36, and a joint 35 attached to the nozzle 30, and is ejected from a hole provided in the tip portion 30b of the nozzle 30. At this time, the crank operating unit 20 and the distribution valve 13 are configured to synchronize their operation timings via the countershaft 41, chain, and sprocket, so that the tip of the nozzle 3o is in the underground 30c.
Paste fertilizer is injected to a depth of about 1.5 m.

Further, since a flexibility mechanism 32 is attached to the pivot point between the nozzle arm 29 and the lower crank arm 27, the nozzle 3o rotates vertically on the ground, and after penetrating into the ground, the nozzle 3o rotates vertically. It tilts by the speed difference in the front and rear direction due to the traveling speed and the circular motion of the nozzle 30, and returns to neutral on the ground again. In this case, if the speed in the traveling direction of the upper and lower 25.27 half-turns of the crank arm, which is about 30 cm long, matches the speed of the tractor 1, the nozzle 30 will be vertical when it is at its maximum depth of 30 cm underground.

Also, change the amount of fertilizer applied, or change the traveling speed and PT of tractor 1.
If the rotation of the O-axis is not aligned and the vertical movement of the nozzle 30 and fertilizer discharge timing are out of order, or if the nozzle 30 swings unreasonably back and forth, remove the screws 60 and 61 of the transmission case 12 and remove the lid 62. .63 can be removed and the gears fixed to the shafts A, B and other shafts can be replaced to change and adjust the rotational speed of the shafts A, B.

In addition, the four nozzles 30 are driven in alternately, but since the wheels 45 are mounted on both the left and right sides of the work machine 2, the work machine 2 is affected by the penetration resistance reaction force caused by the drive.
Rolling can be prevented and the driving depth can be maintained constant.

(G) As described in detail, according to the present invention, the fertilizer application machine (2)
The nozzles (30) are arranged at symmetrical positions on the working machine (2), and the left and right nozzles (30) are arranged in symmetrical positions on the working machine (2).
, (30), the power transmission part (12) and the distribution valve (13)
etc., there is no wasted space and the aircraft (2
) can be configured compactly. Furthermore, when viewed from the side, the power transmission section (12), distribution valve (13), etc. are arranged at the front of the working machine (2), so the nozzle (30) can be driven closer to the main body of the tractor 1. Overall, the working machine (2) can be made more compact, and it is also easier to apply fertilizer at the edge of the field, and the stability of work is also increased.

[Brief explanation of drawings]

FIG. 1 is a side view of the fertilizer application machine mounted on a tractor, FIG. 2 is a side view of the fertilizer application machine, and FIG. 3 is a rear view of the fertilizer application machine. FIG. 4 is a diagram showing the state of connection between the paste pump, the distribution valve, and the nozzle. FIG. 5 is a sectional view of the power transmission section, and FIG. 6 is a diagram showing the arrangement of the base tank. 1... Tractor (mobile agricultural machine) 2... Fertilizer application machine 20... Crank operating part,
12...Power transmission part (transmission case) 13...Distribution valve 25...Crank arm top,
27...Under the crank arm 30...Nozzle.

Claims (1)

[Scope of Claims] 1. A fertilizer application machine equipped with a nozzle that is attached to a mobile agricultural machine and is driven substantially vertically by a crank operating section to supply fertilizer, etc. stored in a tank into the soil, comprising: are arranged at symmetrical positions on the working machine, and the nozzle is provided with a distribution valve for distributing fertilizer etc. stored in the tank, and a power transmission section for transmitting power to the distribution valve and the crank operating section, A fertilizing work machine, characterized in that the distribution valve and the power transmission section are disposed between the left and right nozzles when viewed from the back of the work machine.