JP2537443Y2 - Fertilizer control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer control device for a fertilizer having a point fertilizer for applying liquid fertilizer, paste fertilizer or granular fertilizer.

[0002]

2. Description of the Related Art Conventionally, in the case of additional fertilizer, paste fertilizer is diluted and put into a tank and sprayed using a power sprayer, or paste fertilizer is put into a backpack type tank and a manual step-in type drip is applied. When the weight of the fertilizer application tube was inserted into the soil with the weight applied to the stepping portion of the machine, the paste fertilizer flowing down from the tank was poured into the soil from the tip of the nozzle of the fertilizer tube.
In the case of Japanese Patent Application Laid-Open No. 2-156814, the fertilizer application tube was fixed and the length thereof was constant.

[Problems to be Solved by the Invention] When the above-mentioned power sprayer is used to spray the diluted paste fertilizer, the fertilizer is scattered over the entire surface of the soil, causing the runoff of the fertilizer and injecting the fertilizer into the soil. Not only was it not possible to fulfill the original purpose of topdressing, but also the routing of the hose from the stationary power sprayer to the spraying position was cumbersome, making it difficult for one person to work. In addition, the latter, which uses a human-powered step-in type infusion machine, can fulfill the original purpose of topdressing, but since it works by applying weight to each point, perform the topdressing work for the entire house with a large area That was a lot of fatigue and efficiency was not improved. Further, in the case of Japanese Patent Application Laid-Open No. 2-156814, it is impossible to shorten the fertilizer tube when instilling the flank of the ridge, and it is not possible to lengthen the fertilizer tube when infusing the flat land.

[0004]

SUMMARY OF THE INVENTION The present invention is a fertilizer applicator in which a point-type fertilizer that moves up and down by a pair of upper and lower crank mechanisms to apply a point-like fertilizer is attached to an airframe having a traveling device.
The above-described problem has been solved by configuring the fertilizer application pipe of the point-like fertilizer to be adjustable in length and variably changing the radius of rotation of the lower crank arm that drives the fertilizer application pipe.

[0005]

[Function] To use the fertilizer with the point fertilizer of the present invention to perform topdressing work, put the wheel of this machine in the valley of the narrow furrow, and when moving forward at low speed, it will interlock with the forward speed, Appropriate amount of fertilizer is sent to the fertilizer pipes that are arranged on the left and right sides. The left and right fertilizer pipes also move up and down diagonally to the slope of the middle of the ridge in conjunction with the forward speed, and when the fertilizer pipe is inserted into the soil and reaches the lowest end, the fertilizer from the nozzle at the tip of the fertilizer pipe Is discharged into the soil and fertilized in the form of dots. At this time, when applying fertilizer to the middle of the ridge, use a fertilizer tube of standard length, shorten the turning radius of the lower crank arm, move the fertilizer tube up and down, and when applying fertilizer to flat ground, use the nozzle at the tip of the fertilizer tube. , And the intermediate material is interposed to increase the overall length, and the turning radius of the lower crank arm is also increased to move the fertilizer tube up and down. By doing so, the fertilizer can be applied in a point-like manner with minimum drag in the soil at the tip of the fertilizer tube regardless of the furrow or the flat ground.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, one embodiment of the present invention will be described. A U-shaped rear hitch 1 which is opened rearward behind a small farming machine, a central portion of a lower frame 4a of a rear support frame 4 is provided. A box-shaped cross section vertically engaged with the hitch pin 2 and fixed on both sides thereof by pressing two push bolts 3 against the wall surface of the rear hitch 1 without play. A U-shaped support bracket 5 opened upward is mounted on the left and right outer sides of the rear support 4b,
The left and right paste tanks 6 are supported.

The paste fertilizer filled in the left and right paste tanks 6 flows down from the lower portion of the paste tank 6 to a supply pump 7 serving as a feeder disposed below by a hose.
From a discharge port of the supply pump 7, the gas is fed through a pipe to a distribution valve 8 serving as a distributor disposed on the upper surface of the rear column 4. The distribution valve 8 has eight discharge ports. The four discharge ports are alternately gathered in two flexible pipes and connected to the upper portions of the left and right fertilizer application pipes 9 respectively. And squirts into the soil from the lower nozzle 9a.

On the other hand, front supporting columns 12 are mounted on the left and right sides of the front frame 10 of the small-sized management machine by mounting bolts 11 to support the stabilizer wheels 13 and 13 in front, and to be horizontal in the middle of the vertical supporting columns. Tool bar 1 with box section in the direction
4 is welded, and an infusion device 15 including a fertilizer tube 9 is supported on both end surfaces of the toolbar 14. In addition, the small-sized management machine injects the paste fertilizer into the soil by the fertilizer application pipe 9 of the infusion device 15 while performing the forward movement by the wheel 16, and performs the topdressing operation. In addition, 17 is when topdressing work is performed on only one ridge,
This is a metal fitting that is attached to the bracket 17a and fixes the flexible pipe on the opposite side.

The power transmission path of the present invention will be described with reference to FIG. 4. Referring to FIG. 4, a main shaft pulley 23 is driven by a V-belt 22 from an engine pulley 21 mounted on a crankshaft of an engine 20.
Is transmitted and received by the tension pulley 24 as a main clutch. PTO sprockets 26, 3 are provided at both ends of the main shaft 25 to which the main shaft pulley 23 is fixed.
1 is fixed, and the PTO sprocket 26 transmits the same rotational speed to the feed pump sprocket 27 via the chain. On the other hand, the PTO sprocket 31 at the other end is reduced by half through the chain through the speed reducer sprocket 32 and transmitted to the speed reducer 33. In the reduction gear 33, the input shaft 3
4 is further reduced by 減速 between the output shaft 35 and the reduction gear 33
Are transmitted to the output shaft sprockets 35a and 35b outside the shaft. From the output shaft sprocket 35 a, the speed is reduced to に by the distribution valve sprocket 37 via the two-stage sprocket 36 that idles with respect to the input shaft 34 and transmitted to the distribution valve 8. On the other hand, the output shaft sprocket 35b at the other end is transmitted to the drive shaft 39 through the intermediate shaft 38 at a reduced speed of 1/2. There are universal joints 40 at both left and right ends of the drive shaft 39, which are transmitted to the left and right infusion sprockets 41 via the inclined shafts, respectively, and further transmitted to the upper upper crank arm sprocket 42. Thus, by disposing the reduction gear 33 in a space close to each device, the main shaft 25
Of power to the supply pump 7 and 1/1 to the distribution valve 8
6. It is now possible to transmit a branch to the infusion machine at 1/8 rotation speed. As shown in FIG. 4, the relationship between the reduction gear sprocket 32 and the input shaft 34 is as follows: a hole of a small boss provided on a part of the circumference of a hub 45 fixed to the input shaft 34 with a pin; Power was transmitted by manually inserting a headed pin 46 into a hole corresponding to the above-mentioned hole on the circumference of, and power was cut off by manually pulling out the headed pin 46 by the thickness of the speed reducer sprocket 32. It is. The two fixing holes 47 formed at right angles to the axial direction of the small boss are holes for fixing the position of the headed pin 46 at the time of contact and disconnection.
Also, regarding the relationship between the supply pump sprocket 27 and the supply pump 7, a pin clutch system having exactly the same structure is adopted, and both of them perform the operation of connecting and disconnecting artificially.

The details of the infusion device 15 will be described with reference to FIG.
Universal joints 40 are connected to both left and right ends of the drive shaft 39, and one of a plurality of round holes of the tool bar 14 on the same line as the rotation center 51 is provided with a sector plate mounting bolt 52.
Thus, the corners of the sector plate 53 are attached. Sector 5
On the outer periphery of 3, a fan-shaped groove 54 is formed in two places vertically and concentrically about a rotation center 51, and adjustment bolts 58 are formed in a plurality of adjustment holes 56 formed in a bracket 55 at the tip of the toolbar 14. Thus, the inclination angle of the fertilizer application pipe 9 is determined. As shown in FIG. 7, a U-shaped fertilizing tube support 59 is welded inward from the fan-shaped plate 53 and supported by a columnar box-shaped column to support a driving unit of the fertilizing tube 9 described later. Regarding the inclination angle of the fertilizing tube 9, the center of the fan-shaped plate mounting bolt 52 and the center of rotation of the universal joint 40 are exactly on the same line.
Any angle can be selected, but if the distance between the left and right fertilizer pipes 9 is to be increased in accordance with the ridge width, the adjustment bolt 58,
The position of 58 is moved to the adjustment hole 56 on the outside of the bracket 55 to determine the angle, and then tightened. At this time, an extension universal joint 60 is interposed in the universal joint 40 as shown in FIG.

In addition, the infusion device 15 is provided with a universal joint 40 as described in the above-described transmission path, in order to efficiently inject the fertilizer application pipe 9 without dragging the fertilizer pipe 9 in the soil while the main body of the small management machine advances. Sprocket 41 and an upper crank arm 63 respectively engaged with an upper crank arm sprocket 42 having the same rotational speed as the sprocket 41.
Fertilizer pipe 9 by the combination of
Is set to operate in a plane close to a predetermined inclined plane.

The drive mechanism of the infusion device 15 will be described with reference to FIGS.
Is transmitted from the upper crank arm sprocket 42 by the sprocket 41.
The infusion shaft 65 supported by two ball bearings 67 in the holder 66 of the fertilizer tube support 59 is driven, and the other end of the infusion shaft 65 is provided with a boss portion of a lower crank arm 64 having a box-shaped cross section. 68. The upper crank arm 63 is also fixed by a similar structure.

A hole that engages with the shaft 71 at the end of the lower crank arm 64 is a horizontal elongated hole 76 so that the shaft 71 can move in the horizontal direction. That is, as shown in FIG. 10, the shaft 71 can be fixed by the nut 70 by changing the position so that the rotation radius of the lower crank arm 64 changes from R ₁ to R ₂ . At this time, the shaft 7 of the lower crank arm 64
Since the cylinder 69 is incorporated in the through portion of the lower crank arm 64 for the length of the inner width of the lower crank arm 64, the box-shaped cross section does not deform when the nut 70 is tightened.

Left and right side plates 73, 7 having vertical slots 77
The U-shaped plates 72, 72 are fitted and fixed at intervals substantially equal to the width of the vertical elongated hole 73 before and after 3, and the fertilizer application pipe 9 is fitted and fixed to the rear U-shaped plate 72, and the shaft On the other side of 71, a washer and the above-mentioned vertically long hole 77 are loosely fitted to fit the flange 71a.
After that, the washer is overlapped on the shaft end and fastened with a bolt 79, so that the fertilizer application pipe 9, the U-shaped plate 72 and the side plate 73 are integrated with the shaft 71 in the horizontal direction. Restricted, but vertical slot 7 in vertical direction
7 is freely movable until it comes into contact with the upper and lower ends. At this time, since the shaft 71 is in flat contact with the back surface of the U-shaped plate 72, the durability against abrasion is excellent.

Fertilizer Apparatus The present machine travels in the valley of the furrow and injects it with the fertilizer pipe 9 toward the middle slope of the furrow. On the other hand, when fertilizing the flat field, the fertilizer pipe 9 must be long. Since fertilizer cannot be applied to the predetermined depth,
After removing the nozzle 75 at the tip and extending it with the adapter 74 interposed, the nozzle 75 is attached to the tip to perform work.
In FIG. 11, the fertilizer application pipe 9 has a standard length and the lower crank arm 6
4 of turning radius in the case of R ₁ Fertilization pipe 9 tip trace T ₁ of the
And the trajectory T ₂ of the tip of the fertilizer tube 9 when the fertilizer tube 9 is elongated by the adapter 74 and the rotation radius of the lower crank arm 64 is R ₂ . In any case, by appropriately selecting the turning radii of the upper crank arm 63 and the lower crank arm 64, the drag of the tip of the fertilizing tube 9 in the soil is reduced by the degree of freedom of the vertical elongated hole 77.

In addition, when the topdressing work in the house progresses and both sides of the house are to be used and only one row is to be infused, the upper bolt 79a and the lower bolt 79 on the opposite side are removed, and the fertilizer application pipe is removed. 9 into side plates 73, 73 and U-shaped plates 72, 7
2 together with the upper and lower crank arms,
With the nozzle 9 a inserted in the paste tank 6, the fertilizer application pipe 9 is supported by the metal fitting 17 at the handle, and the supply pump 7
In addition, it is possible to inject only one row while returning the paste fertilizer supplied by the distribution valve 8 to the paste tank 6, and the topdressing operation by injecting all places in the field or the house is mechanized. Was.

[0017]

[Effect of the Invention] The present invention relates to a fertilizer applicator in which a point-type fertilizer is mounted on a body having a traveling device and vertically moved by a pair of upper and lower crank mechanisms to apply a point-like fertilizer. The length of the pipe 9 is adjustable, and the fertilizer
The rotation radius of the lower crank arm 64 for driving the fertilizer is variable, so that the structure around the fertilizer pipe is simple and robust, and the drag on the tip of the fertilizer pipe in the soil is minimized and Fertilization work can now be performed efficiently even on flat ground.

[Brief description of the drawings]

FIG. 1 is a side view of a fertilizer application device.

FIG. 2 is a rear view of the fertilizer application device.

FIG. 3 is a perspective view of a support fitting.

FIG. 4 is a transmission system diagram of the fertilizer application device.

FIG. 5 is a sectional view of a pin clutch.

FIG. 6 is an exploded perspective view of the pin clutch.

FIG. 7 is a rear view of the infusion device.

FIG. 8 is a perspective view of a fertilizer tube support frame.

FIG. 9 is a side view of a lower crank portion.

FIG. 10 is a sectional view of a lower crank portion.

FIG. 11 is a trajectory diagram of a fertilizer tube tip.

FIG. 12 is a sectional view showing another example of the universal joint.

[Explanation of symbols]

 Reference Signs List 5 rear support 6 paste tank 7 supply pump 8 distribution valve 9 fertilizer application pipe 12 front support 13 stabilizer wheel 14 toolbar 15 infusion device 39 drive shaft 40 universal joint 63 upper crank arm 64 lower crank arm 65 infusion shaft 67 ball bearing 69 Stud 71 Shaft 74 Adapter 75 Nozzle

Claims (1)

(57) [Scope of request for utility model registration] 1. A fertilizer applicator equipped with a point-type fertilizer that moves up and down by a pair of upper and lower crank mechanisms to apply a point-like fertilizer to an airframe having a traveling device. A fertilizer control device, wherein the fertilizer tube control device is configured to be adjustable and the rotation radius of the lower crank arm 64 for driving the fertilizer tube 9 is variable.