JP3012843B1 - Fertilizer spreader for tractor mounting that can mix and spray fertilizers - Google Patents

Abstract

A drive unit for mixing fertilizer and a spray drive unit have a complicated configuration, a center of gravity is located at a rear portion, and traveling of a tractor tends to be unstable. SOLUTION: In a fertilizer spreader having a hopper 5 and a spraying device 3, a disk rotating shaft 31 of a spraying disk 30 of the spraying device 3 and a stirring rotating shaft 500 of a stirring device 50 of the hopper 5 are substantially the same in a vertical direction. Arranged on the rotation axis,
And a reducer 4 provided between the disk rotation shaft 31 and the stirring rotation shaft 500 to reduce the rotation of the stirring rotation shaft 500. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a powdery or granular fertilizer, a fertilizer in which these are mixed, a fertilizer such as an organic substance, and a mixture of raw garbage with a fertilizer such as compost produced by compost. The present invention relates to a fertilizer spreader mounted on a tractor capable of spraying while mixing fertilizers to be spread having different properties.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Publication No. 4-53231 (Prior Art 1) is known as a fertilizer spreader capable of mixing and spreading fertilizer. Prior art 1 discloses that “in a hopper in which the peripheral wall is formed in a cylindrical or polygonal column shape, a vertical rotation axis arranged at an axial center portion of the hopper, and a projecting length different from the rotation axis in a radial direction. A stirrer including a plurality of protruding arms and a stirrer having a rake angle provided at each protruding end of each of the arms so as to protrude forward in the rotation direction of the rotation shaft is disposed, and the rotation shaft thereof is arranged. Conduction is transmitted to the transmission part, and a small outlet is provided on the bottom wall of the hopper at the periphery of the hopper, and a dispersing device is installed below the dispensing outlet. The transmission between the rotating shaft of the dispersing device and the transmission part is performed. A spreader of fertilizer or the like, in which a mechanism is provided with a clutch mechanism for turning on / off the transmission to the rotating shaft by operating the operating rod, is disclosed.

[0003]

However, according to the prior art 1, the transmission for driving the stirring device of the hopper and the transmission mechanism of the rotating shaft of the spraying device are arranged in parallel in the horizontal direction.
There is a problem that the drive transmission unit has a complicated configuration and the center of gravity is located at the rear part. Furthermore, when the center of gravity of the fertilizer spreader is located at the rear part, when the fertilizer spreader is mounted on the tractor, there is a problem that the front wheel of a small tractor is lifted, and a heavy tractor with a heavy weight is used. There was a task that had to be done.

[0004]

SUMMARY OF THE INVENTION In order to solve the problem, in a fertilizer spreader having a hopper and a spraying device, a disc rotating shaft of a spreading disk of a spreading device provided vertically from an input shaft via a transmission case. A speed reducer connected at the upper end of the disk rotating shaft, and connected to a stirring rotating shaft of a stirring device of a hopper at an upper portion of the speed reducing device, and the stirring rotating shaft is substantially perpendicular to the disk rotating shaft at the upper portion of the speed reducer. By transmitting the rotation speed reduced to the stirring rotation shaft by the reduction gear and connected to the same shaft, and rotating the stirring device in the hopper at a lower rotation speed compared to the spreading disc, and adjusting the reduction gear The present invention proposes a tractor-attached fertilizer spreader that can mix and spray fertilizers and the like, characterized in that the rotation speed can be changed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows the front of the fertilizer spreader, FIG. 2 also shows a side cross section, FIG. 3 shows the plane of the bottom surface of the hopper of the fertilizer spreader, and FIG. 4 shows a partially cut-out plane of the fertilizer mixing hopper of the fertilizer spreader.
It will be described based on.

A tractor-attached fertilizer spreader capable of mixing and spreading fertilizers and the like according to an embodiment of the present invention comprises a top bracket 10 provided at the upper center of a frame 1 which stands upright at the front, and a left and right frame. A three-point link is mounted on a tractor (not shown) by lower pins 11 protruding left and right on the outside of the vehicle. The tractor-mounted fertilizer spreader according to the present invention has an input shaft 2 that projects forward and horizontally.
Power is transmitted from the tractor by being connected to the PTO shaft of the tractor.

[0007] The input shaft 2 is provided with a sprinkling device 3 provided vertically through a transmission case 20 which is a substantially right-angled cover.
Is connected to the disc rotating shaft 31 of the spreading disc 30. In the speed change case 20, the gears are shifted by Babel gears having different diameters from each other, so that a vertical disk rotation shaft 31 is formed.
To be transmitted. The disk rotating shaft 31 is provided with a disk-shaped scatter disk 30 having a disk surface arranged horizontally. The spraying disc 30 is provided with a spreading vane 32 which is provided upright on a part of the disc-shaped disc. 33 is a cover,
Part of the circumference of the spreading disc 30 is covered.

The disk rotating shaft 31 is connected to the speed reducer 4 at its upper end. The speed reducer 4 is connected to the stirring rotation shaft 500 of the stirring device 50 of the fertilizer mixing hopper 5 at an upper portion thereof. The stirring rotation shaft 500 is connected to the upper part of the speed reducer 4 on the same axis substantially perpendicular to the disk rotation shaft 31.

The fertilizer mixing hopper 5 has a hollow conical hopper section 51 having an open upper surface and a flat bottom surface at the lower surface.
And a stirrer 50 provided inside the hopper 51.

The hopper 51 has a bottom plate 510 having a bottom surface on which a fertilizer drop hole 511 is provided, and a shutter 512 for opening and closing the fertilizer drop hole 511. Fertilizer drop hole 511
Is formed by cutting out a partial area in front of the bottom plate 510.
The shutter 512 is provided with a shutter opening / closing lever 515 by a plurality of pivots 513 and a plurality of connecting rods 514.
It is connected to. The shutter opening / closing lever 515 is fixed to the outside of the conical slope of the hopper 51, and is pulled in the forward direction of the tractor with the horizontally provided first rotation fulcrum 513a as a fulcrum. Then, the first connecting rod 514a moves. The second connecting rod 514b rotatably connected to the first connecting rod 514a and the second turning fulcrum 513b is provided on the shutter 51.
2 is pulled out in the front direction of the tractor, which is the direction of arrow B, to open the fertilizer drop hole 511. When closing the fertilizer drop hole 511, the shutter opening / closing lever 515 is closed by pushing the tractor rearward.

The stirring device 50 includes a stirring rotation shaft 500, a stirring rod 501 fixed to the stirring rotation shaft 500 and rotating along a conical slope inside the hopper 51, and a stirring plate 502 rotating near the upper surface of the bottom plate 510. Consists of

Next, the operation of the tractor-mounted fertilizer spreader according to the embodiment of the present invention, which can mix and spray fertilizers and the like, will be described.

In the fertilizer spreader mounted on the tractor, the input shaft 2 connected to the PTO shaft of the tractor is transmitted with a rotational force. The input shaft 2 transmits the rotation speed to the disk rotation shaft 31 by changing the direction of the rotation shaft from the horizontal direction to the vertical direction while adjusting the rotation speed by the transmission case 20.

A disk rotating shaft 31 arranged in a substantially vertical direction is connected to the speed reducer 4 at its upper end while rotating the spreading disk 30. The reduction gear 4 has a disk rotating shaft 31.
The number of rotations of the disk
Agitating rotary shaft 5 connected on the same axis and substantially vertically
The rotation speed reduced to 00 is transmitted, and the stirring rod 501 and the stirring plate 502 of the stirring device 50 are rotated in the hopper 51 at a rotation speed smaller than that of the spray disk 30.
This rotation speed can be changed by adjusting the speed reducer 4.

[0015] Even when powdery or granular fertilizer or viscous organic fertilizer which is stirred and mixed in the fertilizer mixing hopper 5 during traveling and moving of the tractor, the fertilizer is applied to the fertilizer application site.
By pulling the shutter opening / closing lever 515 to the front of the tractor, the fertilizer drop hole 511 is opened, and the mixed fertilizer falls sequentially, and the spreading disc 30 rotating at a high speed is positioned below the fertilizer drop hole 511. Hit and spread on the field.

Therefore, it is possible to spray the fertilizer at the desired mixing ratio on the target field while mixing the fertilizer while the tractor is running or moving.

[0017]

According to the present invention, since the disk rotation axis of the spraying device and the stirring rotation axis of the stirring device are provided on the same rotation axis in a substantially vertical direction, the fertilizer spreader itself is provided despite the provision of the speed reducer. Has a center of gravity substantially on one rotation axis, which enables extremely stable running even after being mounted on the tractor, and enables spraying while mixing.

Therefore, it is not necessary to use a large horsepower tractor which requires a space for storage at a high price, and it becomes possible to mix and spray the fertilizer mounted on a small horsepower tractor.

Further, since the connecting structure of the drive unit is simple, a failure hardly occurs and maintenance and inspection are easy.

Furthermore, composts and organic fertilizers made from raw garbage, whose use has been increasing in recent years, are heavy due to their high water content, and have high viscosity and adhesion. , The mixing and spraying work can be stably performed while running while mounted on a tractor with small or medium horsepower.

[Brief description of the drawings]

FIG. 1 is a front view of a tractor-mounted fertilizer spreader showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the tractor-mounted fertilizer spreader.

FIG. 3 is a plan view of the bottom surface of the hopper for mixing fertilizer of the fertilizer spreader also mounted on a tractor.

FIG. 4 is a partially cutaway plan view of a fertilizer mixing hopper of the tractor-installed material spreader.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 10 Top bracket 11 Lower pin 2 Input shaft 20 Transmission case 3 Spreading device 30 Spreading disk 31 Disk rotating shaft 32 Spraying blade 33 Cover 4 Reduction gear 5 Fertilizer mixing hopper 50 Stirring device 500 Stirring rotating shaft 501 Stirring rod 502 Stirring plate 51 Hopper part 510 Bottom plate 511 Fertilizer drop hole 512 Shutter 513 Rotating fulcrum 514 Connecting rod 515 Shutter opening / closing lever

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ryoji Kuji 1 Rinosawa, Sanbongi, Towada-shi, Aomori 1st place 259 Inside Sasaki Corporation (72) Inventor Shigeharu Kochi Osan, Sanjiri, Tojida-shi, Aomori No. 1 No. 259 Inside Sasaki Corporation (56) References Japanese Utility Model 3-129011 (JP, U) Japanese Utility Model Utility Model Sho 62-102314 (JP, U) (58) Field surveyed (Int. ⁷ , DB name) A01C 17/00 A01C 15/00 A01C 19/00-19/02

Claims (1)

(57) [Claims] 1. A fertilizer spreader having a hopper and a spraying device, wherein a disk rotating shaft of a spreading disk of the spraying device is provided vertically from an input shaft via a transmission case;
The reduction gear connected at the upper end of the disk rotation shaft is connected to the stirring rotation shaft of the hopper agitator at the upper part of the reduction gear, and the stirring rotation axis is substantially the same as the disk rotation axis at the top of the reduction gear in a direction substantially perpendicular to the disk rotation axis. It is connected to the shaft and transmits the rotation speed reduced to the stirring rotation shaft by the reduction gear, rotates the stirring device in the hopper at a lower rotation speed compared to the spraying disc, and rotates by adjusting the reduction gear. A tractor-mounted fertilizer spreader capable of mixing and spraying fertilizers, the number of which can be changed.