JPS6224042B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a fertilizer stirring device in a fertilizer spreader, and more specifically, a cylindrical container is fixed to the lower part of the hopper, and a stirring device is attached to the upper part of the cylindrical container. Arrange the device and use a partition disc to divide the inside of the container from 1 to
In a fertilizer spreading device divided into several chambers, in which fertilizer scraping blades are arranged, and spreading blades are arranged below the bottom of the cylindrical container, the blades of the stirring device are variable and the rear end is bent. This invention relates to a fertilizer stirring device with enhanced stirring effect.

``Prior art'' Fertilizer spreaders require a fertilizer stirring device to smoothly discharge the fertilizer in the hopper from the discharge port.
As disclosed in No. 33044, it consisted of one or several rods or plates fixed to a rotating shaft.

"Problems to be Solved by the Invention" However, with the above-mentioned conventional technology, that is, the rod-shaped stirring device, sufficient stirring and derivation effects cannot be expected because the area in contact with the fertilizer is small.
In addition, in a plate-shaped stirring device, even if the stirring and deriving capabilities are sufficient, the pressure resistance becomes large, an excessive load is applied to the rotating shaft, and problems such as damage to the connecting portion occur. In particular, in the case of fertilizer spreaders, the problem is that a fixed stirring device, whether rod-shaped or plate-shaped, cannot adequately handle the various fertilizers that have greatly different specific gravity. It was hot.

The present invention was made by focusing on these conventional problems, and provides an agitation device for a fertilizer spreader that can be expected to have sufficient agitation and derivation effects, and can reduce pressure resistance and avoid excessive loads. is intended to provide.

"Means for Solving the Problem" The gist of the present invention for achieving the above object is as follows: A discharge port is provided at the bottom of the hopper, and several shafts fixed to a rotating shaft are provided above the discharge port. A stirring blade is rotatably attached to the shaft rod, and the rear end of the stirring blade is bent so as to come into contact with the bottom of the hopper when hanging down due to its own weight. It consists in a fertilizer agitation device in a fertilizer spreader.

``Function'' Therefore, one end of a plate-shaped stirring blade was rotatably attached to each of several shaft rods attached radially around the rotating shaft, and the other end (rear end) was bent. Due to this structure, the other end, which normally hangs down due to its own weight, rotates up and down around the shaft rod, which increases the agitation of the fertilizer and the resistance pressure of the fertilizer. This makes it possible to reduce the amount of manure, allow extremely smooth stirring and discharge, and ensure that when there is little remaining manure in the hopper, the remaining manure can be scraped off to the discharge port.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a frame to which an upper handle 2 is fixed; on the frame 1, a prime mover 3, a reduction gear 4, a fertilizer spreading section A, and a transmission device 5 are attached; be supported. 7 is a pulley attached to the output shaft of the prime mover 3, 8 is a pulley attached to the input shaft of the reducer 4, and a belt is wound between the pulleys 7 and 8. 9 and 10 are a pulley and a gear attached to the output shaft of the reducer 4, and gear 1
0 and a gear 1 attached to the axle of the rear wheel 6b.
A chain is wound between the pulley 9 and the pulley 12 attached to the input shaft of the transmission device 5, and a belt is wound between the pulley 9 and the pulley 12 attached to the input shaft of the transmission device 5. Conduction device 5
The rotation direction is changed by two head gears, which will be described later, and its output shaft 13 is connected to a clutch (not shown).
is connected to.

As shown in FIG. 2, the fertilizer spreading section A includes a fertilizer storage hopper 14, a gear box 16 fixed to the inner bottom of the hopper 14 via a frame 15, a cylindrical container 17 fixed to the lower part of the hopper 14, and a stirring blade. Stirring device B consisting of 18 and spraying blades 19
It is composed of

The gear box 16 houses the tip of the output shaft 13 from the reducer 4 described above and two head gears 20a and 20b attached to the shaft 13, which mesh with the head gears 20a and 20b of the output shaft 13. A hollow two-shaft passive shaft 2 with a cap gear 21 and an arm gear 22 attached.
3 and 24 pass through the center of the cylindrical container 17,
The outer driven shaft 24 of the driven shafts is connected to the bottom part 1 of the cylindrical container.
A bearing (not shown) protrudes slightly outward from 7a.
The inner driven shaft 23 is supported by a bearing 25 on the frame 1.

As shown in FIGS. 3 and 4, the stirring device B has stirring blades 18 rotatably attached at one end to shaft rods 26 fixed radially and at equal intervals to the outer passive shaft 24.
is installed.

As shown in FIGS. 5a and 5b and 6a and 6b, the rear end 18b of the stirring blade 18 is brought into contact with the bottom of the hopper while hanging down under its own weight.
By bending it upward and downward at an appropriate angle, when there is little fertilizer left in the hopper 14, the remaining manure can be scraped off to the discharge port, and the bent rear end has an extremely large stirring effect.

In addition, as shown in FIGS. 7a and 7b, the stirring blade 18
If the tip 18a is made sharp by protruding forward from the shaft 26, a balance will be created between the pressure from above the fertilizer in the hopper 14 and the pressure from the front due to rotation, which will affect the amount of fertilizer in the hopper. A substantially constant amount of fertilizer can always be introduced into the stirring blade 18 and discharged without being affected.

Furthermore, as shown in FIG. 3, by making the size of the stirring blades 18 approximately equal to the spacing between the shaft rods, a structure is created in which the discharge port opened at the bottom of the hopper is always covered. As a result, the fertilizer in the hopper does not pass directly to the discharge port, but is always guided to the discharge port through the gap between the stirring blades, so that a stable amount of fertilizer is always delivered.

Note that two partition disks 27a and 27b are fixed within the cylindrical container 17 at a constant interval, dividing the inside of the cylindrical container 17 into two chambers. Several scraping blades 28a and 28b made of thin plates are radially fixed to the aforementioned outer driven shaft 23 in the two chambers.

Reference numeral 29 in the figure is an adjustment plate provided in close contact with the lower partition disk 27a, and as shown in FIG. 8, by rotating the adjustment plate 29, the lower partition disk 27b can be adjusted. Change the size of the drop opening. 30
31 is a discharge port opened in the upper partition disc 27a;
32 is a discharge port opened in the lower partition plate 27b, 32 is a discharge port opened in the adjustment plate 29, and 33 is a discharge port opened in the cylindrical container bottom 17a. are opened at different positions. Further, the dispersion blades 19 are composed of several thin plates fixed radially to the inner driven shaft 23 below the cylindrical container.

The present invention has the above configuration, and its operation will be explained below.

After adjusting the size of the drop opening 31 by rotating the adjusting plate 29 in accordance with the type of fertilizer and the amount of rotten fertilizer, and adjusting the amount of fall onto the spreading blades 19, the prime mover 3 is turned on. The rotational force of 3 is reduced by the speed reducer 4 and transmitted from the output shaft 13 to the hollow two-shaft passive shafts 23 and 24 via the head gears 20a, 20b, 21 and the arm gear 22.
When the two shafts 23 and 24 rotate due to this transmission, the fertilizer in the hopper 14 is guided by the rotating stirring blade 18, and a certain amount of fertilizer falls into the upper chamber from the drop opening 30 of the upper partition disc 27a. The fallen fixed amount of fertilizer is guided by the rotating scraping blade 28a to the lower partition disk 27b and the drop opening 31 of the adjusting plate 29,
32 and falls further into the lower chamber. The fertilizer introduced into the lower chamber is guided by the scraping blade 28b and falls from the drop opening 34 of the cylindrical container bottom 17a onto the spreading blade 19 which rotates at high speed, and is evenly spread left and right by the rotation of the blade 18. Ru. In this way, the fertilizer in the hopper is sequentially introduced into the stirring blades 18 and discharged into the cylindrical container 17. At this time, even if coarse bone fragments or the like in the fertilizer are introduced into the stirring blade 18, the rear end 18b of the stirring blade 18 rotates upward to avoid the coarse bone fragments and continues to rotate.

"Effects of the Invention" As explained above, the fertilizer spreader of this invention has the following features:
It is possible to avoid rotational obstruction caused by coarse bone fragments, and to protect the prime mover and other driving parts from destruction. It also has the effect of reliably scraping off any remaining manure.

[Brief explanation of the drawing]

Figure 1 is a side view of the fertilizer spreader, Figure 2 is a sectional view of the fertilizer spreading part, Figure 3 is a plan view of the stirring blade, and Figure 4 is a side view of the fertilizer spreader.
The figure is a front view of the stirring blade, FIG. 5a is a front view of another embodiment of the stirring blade, FIG. 5b is a plan view of the same, and FIG. 6b is a plan view of the same, FIGS. 7a and 7b are front views of other embodiments of the stirring blade, FIG. 8 is a plan view of the upper partition disk, and FIG.
The figure is a plan view of the lower partition disk, FIG. 10 is a plan view of the adjustment plate, and FIG. 11 is a plan view of the bottom of the cylindrical container. A... Fertilizer spreading section, B... Stirring device, 14... Hopper, 17... Cylindrical container, 18... Stirring blade, 19... Spreading blade, 23... Inner passive shaft, 24... Outer passive shaft,
26... Axis rod, 30... Discharge port.

Claims (1)

[Claims] 1. A discharge port is provided at the bottom of the hopper, several shafts fixed to a rotating shaft are arranged above the discharge port, and a stirring blade is rotatably attached to the shaft, and a A fertilizer stirring device for a fertilizer spreader, characterized in that the end is bent so as to contact the bottom of a hopper when hanging under its own weight.