JPH0851828A - Fertilizer distributor for plow land - Google Patents

Abstract

PURPOSE:To provide a fertilizer distributor for plow land capable of accurately supplying a balanced liquid fertilizers fitting to the growing state to the optimum position irrespective of the shape and size of ridges and sufficiently keeping the initial growth of crops growing on the ridge covered with mulch films. CONSTITUTION:This fertilizer distributor is provided with plural liquid fertilizer injecting units for injecting thereof into soil in a machine frame drawn by a traveling chassis (a) through a link mechanism. Each injection unit is divided into a transferring gear case 21 attached to a polygonal shaft in the middle of a power transmission system in a state to be separately shiftable in lateral direction and a driving case 32 to rotate a cam driving a pump 50 and a crank vertically reciprocating an injection nozzle 45. The driving case is freely fixed or revolved relatively to the transferring gear around the axis of the middle shaft connecting individual cases. The positions of the plural liquid fertilizer injecting units are made to be individually shiftable in right and left directions relative to the moving direction of the working machine and the injection angle of the injection nozzle is changeable in right and left directions by this construction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer application machine for supplementing liquid fertilizer to a growing crop in a ridge covered with multi-film in a vegetable farm.

[0002]

2. Description of the Related Art Conventionally, as a general fertilizing method for growing field crops, sprinkling granular fertilizer or the like on the soil surface in the vicinity of the crop, or for furrow crops coated with multi-film, Granular fertilizer was sprinkled on the ridges, and the hem of the multi-film was turned up, and the soil was put on the ridges along with the soil.

In recent years, a fertilizer working machine for penetrating a multi-film and inserting a liquid fertilizer injection nozzle into the soil to apply liquid fertilizer has also been developed and studied.

[0004]

In the case of granular fertilizer, there is a problem that it does not dissolve and develop in the absence of water and the lead time from fertilization to activation is long. It is unsuitable, and when the granular fertilizer is dissolved, the heat of dissolution is removed and the soil temperature is lowered, which is disadvantageous for initial growth. In addition, when it is covered with multi-film, it requires a great deal of labor to flip the hem once and reapply it after fertilizing work.

The shape and size of the ridges for growing crops are
Since it varies depending on each region and type of crop, a fertilizer application machine that pierces a conventional multi-film and inserts a liquid fertilizer injection nozzle into the soil to apply liquid fertilizer has a fixed mounting position for the liquid fertilizer injection nozzle, so various conditions are required. In some cases, it cannot be applied and cannot be applied accurately to the optimum position.

[0006] The point of field crops is how to measure the initial growth from planting. The point is how to measure the initial growth in a short period of time to reach a crop body that can sufficiently absorb the solid manure and organic manure applied as the basic manure.

[0007] The present invention has been made in view of the problems of the above-mentioned conventional techniques, and the object thereof is to carry out an initial growth for a crop growing in a ridge coated with a multi-film. It is an object of the present invention to provide a field fertilizer working machine capable of accurately applying a well-balanced liquid fertilizer suitable for a growth stage to an optimal position regardless of the shape and size of the ridges in order to ensure sufficient securing.

[0008]

In order to achieve the above object, in the present invention, a plurality of liquid fertilizer injecting units for injecting liquid fertilizer into soil in a machine frame towed by a traveling vehicle body via a link mechanism. In a field fertilizer application machine equipped with, a liquid gear fertilizer injection unit is provided on a polygonal shaft provided at an intermediate portion of a power transmission system, a moving gear case provided so that left and right movements can be individually adjusted, a cam for driving a pump, and an injection nozzle. Is divided into a drive case that rotates the crank that drives up and down,
By arranging the drive case with respect to the moving gear case so as to be rotatable and fixed around the axis of the intermediate shaft connecting between the cases, the positions where a plurality of solid fertilizer injecting units are arranged are set with respect to the traveling direction of the working machine. In addition to being individually movable in the left-right direction, the driving angle of the injection nozzle can be tilted in the left-right direction.

[0009]

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

FIG. 1 is a partial cross-sectional side view of a field fertilizer application machine according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a rear view of the same. The case where the left injection nozzle is tilted inward is shown.

As shown in FIG. 1, the fertilizer application machine is connected to the rear part of the traveling vehicle body so as to be vertically movable via a three-point hitch type link mechanism including a top link 1 and a pair of left and right lower links 2, 2 '. At the same time, it is driven by the power transmitted through the PTO shaft 3 of the traveling vehicle body a and the universal joint 4.

The frame of the fertilizer application machine has a gear case 5 provided at the center of the lower front part so as to project forwardly with an input shaft 6 connected to the PTO shaft 3 of the traveling vehicle body a, and on both sides of the gear case 5. Cylindrical support frames 10 and 1 mounted
1, a lower frame 12 and side frames 13, 1 provided on the lateral sides of the left and right ends of the lower frame 12.
4 and the moving guide frame 1 in the shape of a rectangular cylinder fixed so as to connect the upper portions of the left and right side frames 13, 14 together.
5 and a rear guard frame 16 provided so as to surround the liquid fertilizer injection unit b.

The liquid fertilizer injection unit b is, as shown in FIG. 5, a movable gear case 21, a support arm 22, a connecting metal 24,
Drive case 32, connection pipe 33, and injection nozzle 4
5, the pump 50 and the like are integrally configured. In this embodiment, two sets of the liquid fertilizer injection unit b are provided, but three sets may be provided, or the injection nozzles 4 may be provided on both sides of the unit body.
5 may be provided.

Then, as shown in FIG. 4, the power transmitted to the input shaft 6 is transmitted through the bevel gears 7 and 8 inside the gear case 5 to the power shaft 9 provided inside the left support frame 10.
Is transmitted to The power shaft 9 penetrates into a chain case 17 provided on the outside of the left side frame 13 and has a sprocket 18 fixed to the tip end thereof. Power is supplied to the upper part of the chain case 17 via a chain 19 and a sprocket 18 '. Is transmitted to a polygonal shaft 20 rotatably installed between the right side frame 14 and the right side frame 14. In the present embodiment, the hexagonal shaft is used, but other polygonal shafts or round shafts may be spline processed or key groove processed.

FIG. 6 is a cross-sectional view showing the inside of the power transmission section of the liquid fertilizer injection unit b, in which the movable bevel gear 28 inside the movable gear case 21 is fitted onto the polygonal shaft 20 so as not to be rotatable but axially movable. . Reference numeral 29 is a collar member that determines the position of the moving bevel gear 28 inside the gear case.

Therefore, the movable gear case 21 is movable in the axial direction of the polygonal shaft 20, and the tip end of the support arm 22 fixed to the movable gear case 21 is provided so as to sandwich the movable guide frame 15 and move. The fixing lever 23 tightens and fixes the movable guide frame 15 at any position in the left-right direction.

Further, as shown in FIGS. 6 and 7, the movable gear case 21 and the drive case 32 provided at the rear are connected to the connecting metal 24 fixed to the movable gear case 21 and the drive case 32.
Since the tip end portion of the connecting pipe 33 fixed to the above is fitted and the joining fixing metal 25 is tightened with the hexagon screw 26 and the joining fixing lever 27 having a screw portion at the tip, the fitting portion is fixed. The drive case 32 is rotatable and fixed around the intermediate shaft 31 with respect to the moving gear case 21.

The power transmitted to the polygonal shaft 20 is further transmitted via a moving bevel gear 28, a bevel gear 30, and an intermediate shaft 31, and a bevel gear 34 in a drive case 32 provided in the rear.
A cam 36 that is transmitted to 35 to drive the pump 50;
It is transmitted to the drive shaft 38 to which the crank arm 37 for vertically moving the injection nozzle 45 is fixed.

The upper end of the connecting arm 39 is rotatably connected to the tip end of the crank arm 37, the injection nozzle 45 is connected downward to the lower end of the connecting arm 39, and the connecting pipe 33 is connected to the connecting pipe 33. Fixed bracket 40
Further, since one end is swingably connected to the tip end of the swing arm 41, by rotating the crank arm 37, the tip end portion of the injection nozzle 45 reciprocates up and down while drawing a predetermined locus. Do exercise. Reference numeral 42 is a spring provided between the bracket 40 and the swing arm 41.

The pump 50 is mounted on the rear portion of the drive case 32 and is operated via the operation arm 51 by the rotation of the cam 36 in the drive case 32. The liquid fertilizer is sucked into the pump 50 from the tank 52 attached to the traveling vehicle body a via the suction hose 53, and is further sent to the injection nozzle 45 via the discharge hose 54. The tank 52 may be placed on the upper part of the machine frame of the fertilizer application machine irrespective of the present embodiment.

The crank arm 37 and the cam 36 are fixed to the drive shaft 38 at a constant angle so that the liquid fertilizer is discharged from the tip of the injection nozzle 45 at a timing near the bottom dead center of the vertical movement locus of the injection nozzle 45. There is.

The case of actually using the fertilizer application machine of the present invention configured as described above will be described.

The movable fixing lever 23 is loosened according to the shape of the ridges to be fertilized and the form of the crop, and the left and right positions of the liquid fertilizer injection unit b are adjusted and fixed. Further, if necessary, the connection fixing lever 27 is loosened, the drive case 32 is tilted, the injection nozzle 45 is set to a desired angle, and the connection fixing lever 27 is again set.
Tighten and fix.

Then, the vertical position of the fertilizer application machine main body is appropriately adjusted by the hydraulic device of the traveling vehicle body a so that the tip end portion of the injection nozzle 45 is sufficiently inserted into the ridge soil near the bottom dead center of the vertical reciprocating locus. Adjust to.

Further, the driving interval of the injection nozzle 45 is
The traveling speed of the traveling vehicle body a is appropriately selected in order to substantially match the planting interval of the crops. That is, when the planting interval of the crops is narrow, the traveling speed is slowed. On the contrary, when the planting interval of the crops is wide, the traveling speed is increased so as not to inject useless liquid fertilizer to a place where there is no crop.

[0026]

EFFECTS OF THE INVENTION Since the field fertilizer application machine according to the present invention is configured as described above, it is possible to pierce a multi-film-growing crop in the field and grow the crop growing in the multi-film-covered ridges for initial growth. Appropriate liquid fertilizer can be applied, and labor can be greatly reduced compared to conventional fertilizer application work.

Further, the left and right positions of the liquid fertilizer injection unit and the driving angle of the injection nozzle can be freely adjusted according to the width of the ridge and the size of the crop so that they can be directed toward the root of the crop. For crops with large leaves such as plants, fertilization efficiency can be improved because fertilizer can be applied close to the plant base without damaging the leaves.

[Brief description of drawings]

FIG. 1 is a side view of a partial cross section of a field fertilizer application machine according to the present invention.

FIG. 2 is a plan view of the fertilizer application machine.

FIG. 3 is a rear view of the fertilizer application machine showing a case where the left injection nozzle is tilted inward.

FIG. 4 is a power transmission system diagram.

FIG. 5 is an explanatory diagram of a liquid fertilizer injection unit.

FIG. 6 is a cross-sectional view showing the inside of the power transmission unit of the liquid fertilizer injection unit.

FIG. 7 is a cross-sectional view of the portion AA in FIG. 5 for explaining the connection state of the moving gear case and the drive case.

[Explanation of symbols]

 a traveling vehicle b liquid fertilizer injection unit 1 top link 2, 2'lower link 3 PTO shaft 4 universal joint 5 gear case 6 input shaft 7, 8 bevel gear 9 power shaft 10, 11 support frame 12 lower frame 13, 14 side frame 15 movement guide Frame 16 Rear guard frame 17 Chain case 18, 18 'Sprocket 19 Chain 20 Polygonal shaft 21 Moving gear case 22 Support arm 23 Moving fixing lever 24 Connecting metal 25 Connecting fixing metal fitting 26 Screw 27 Connecting fixing lever 28 Moving bevel gear 29 Color member 30 Bevel gear 31 Intermediate shaft 32 Drive case 33 Connection pipes 34, 35 Bevel gear 36 Cam 37 Crank arm 38 Drive shaft 39 Connection arm 40 Bracket 41 Swing arm 42 Spring 45 Injection nozzle 5 0 pump 51 operating arm 52 tank 53 suction hose 54 discharge hose

Claims (1)

[Claims] 1. A field fertilizer application machine comprising a plurality of liquid fertilizer injecting units for injecting liquid fertilizer into soil in a machine frame towed by a traveling vehicle through a link mechanism. On the polygonal shaft provided in the middle of the power transmission system,
Divided into a moving gear case that can be individually adjusted for left and right movement and a driving case that rotationally drives a crank that vertically reciprocates the cam that drives the pump and the injection nozzle, and connect the driving cases to the moving gear case. By rotating and fixing around the intermediate shaft, the positions where a plurality of solid fertilizer injecting units are arranged can be individually adjusted in the left-right direction with respect to the traveling direction of the working machine. A field fertilizer application machine characterized in that the injection angle of the injection nozzle can be tilted to the left and right.