JPH0434648Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a chicken manure spreader that is attached to the rear of a tractor and driven by the tractor's PTO shaft to spread chicken manure, compost, etc. onto a field. The present invention relates to a feeding device.

(b) Prior Art Conventionally, the same applicant has applied for technology such as Utility Model Application No. 130277-1983 regarding the structure of a spreader for fertilizers, chemicals, etc.

Regarding a spreader having an agitator and a slide shutter, the technology described in Japanese Utility Model Application Publication No. 59-122024 is known, and the technology to bulge the front and rear of the bottom plate of the hopper is known in Japanese Utility Model Application Publication No. 51-17132.
The technique described in Japanese Utility Model Publication No. 57-22726 was known as a technique for forming a gap between the lower surface of the hopper and the shutter.

(c) Problems that the invention aims to solve However, with the above-mentioned conventional sprayers, it is possible to spray particles or powder of a certain shape, such as fertilizers and chemicals, but it is not possible to spray things such as raw chicken manure or compost. By containing a lot of water and stirring with an agitator,
It was impossible to disperse irregularly shaped objects that would lose their shape and deform into dumplings.

The present invention relates to a feeding device for a chicken manure etc. spreader that eliminates the above-mentioned problems.

Conventionally, chemical fertilizers were easier to handle;
Fertilizers were also quick-acting, so most farmers used chemical fertilizers and chemicals. However, as a result of this, the fertility of the soil has declined, and many pests that are resistant to pesticides have emerged. In order to solve this problem, it has become popular in recent years to spread organic fertilizers such as chicken manure and compost, but it is no longer possible to spread them manually, and it is difficult to handle such amorphous materials. There was also no sprayer to spray it.

When raw chicken manure, etc. is spread using a conventional spreader, even if it is stirred by an agitator, the chicken manure, etc. does not fall toward the drop opening, and with the conventional lower shutter structure, the lower plate of the hopper Poultry manure was caught and hardened between the lower shutter 14 and the lower shutter 14 did not move.

The present invention solves these problems and makes it possible to spray amorphous materials such as raw chicken manure.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

By fixing a plurality of agitators 9 to an agitator shaft 8 disposed at the lower part of the hopper 3 and rotating them, a drop opening 2 is opened in the hopper lower plate 23.
In the feeding device that drops chicken manure etc. from 3a,
At the lower end of the hopper 3, a hopper lower plate 23 configured in a semicircular arc shape in the direction along the agitator shaft 8 is attached. The hopper bottom plate 23 and the lower shutter 14 forming the concentric semicircular arc are disposed along the semicircular arc shaped hopper bottom plate 23. A semicircular gap b is formed between the lower shutter 14 and the lower shutter 14.
The opening 14a provided in the hopper is slid to align with the drop opening 23a of the hopper lower plate 23.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure and operation of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a partial cross-sectional side view of the chicken manure etc. spreader of the present invention, Fig. 2 is a front view of the same, and Fig. 3 is a hopper 3.
An enlarged side view of the spreader with the bottom cut out, Figure 4 is a front sectional view, and Figure 5 is a hopper bottom plate 2.
3 is a plan view showing the position of the drop port 23a and the agitator 9 of No. 3. FIG.

The overall configuration of the spreader will be explained based on the drawings of FIGS. 1 to 4.

Since the spreader is attached to a three-point link type work implement mounting device at the rear of the tractor, a top link mast 15 and a lower link pivot pin 13 are provided on the front side. The lower link pivot pin 13 is fixed to a pin bracket 16 protruding from the bottom of the top link mast 15.

A shutter lever 20 extends to the side of the toplink mast 15 so that an operator riding on the tractor can open and close the lower shutter 14 of the hopper 3.

A lever guide 19 is arranged at a portion where the shutter lever 20 is rotated back and forth.

The hopper 3 is supported by a column 18 projecting upward from a support base 17 and a top link mast 15. A pin bracket 16 projects from the middle of the top mast 15, and a lower link pivot pin is attached to the pin bracket 16. 13 is fixed.

The lower shutter 14 is configured in a similar arcuate shape along the arcuate lower surface of the hopper 3, and is supported so as to be slidable along the lower surface of the hopper 3. By sliding the lower shutter 14 with the shutter lever 20, the hopper 3
When the drop port 23a provided on the lower surface of the arcuate shape matches the opening 14a of the lower shutter 14,
The structure is such that chicken manure and the like in the hopper 3 fall onto the field.

A rotating part of an agitator 9 is provided inside the hopper 3, and no partition is provided between the agitator 9 and the upper part of the hopper 3. And at the bottom center of Hopper 3,
A worm gear case 1 is arranged, and an input shaft 2 of the worm gear case 1 protrudes outward from the front of the hopper 3, and transmits power to the input shaft 2 through a universal joint for the rotation of the PTO shaft of the tractor. It is being done.

The PTO shaft rotates 540 times inside the worm gear case 1.
The speed is reduced to about 30 rotations, and the direction of rotation of the input shaft 2 is changed by a worm gear, and the rotation of the shaft directed toward the horizontally long hopper 3 is taken out by the agitator drive shaft 4. An agitator cylindrical shaft 8 is fitted onto the agitator drive shaft 4, and the outer end of the agitator cylindrical shaft 8 is fitted onto the outer periphery of an outer end support shaft 6 that protrudes into the hopper 3 from the bearing case 5.

Therefore, the agitator drive shaft 4 is fitted into the inner end of the agitator cylinder shaft 8, and the outer end support shaft 6 is fitted into the outer end, so that the agitator cylinder shaft 8 is supported in a dual-supported state. An agitator 9 is fixed to the outer periphery of the agitator cylinder shaft 8.

The purpose of the agitator 9 is to agitate chicken manure etc. by rotating and destroy the bridge of chicken manure inside the hopper 3.
Two discs are spot welded and a part of the discs is bent outward to form the scraping blade.

Since the agitator 9 is composed of a disk and is weak in strength, a connecting rod 10 that connects the plurality of agitators 9 for reinforcement is fixedly arranged at a 180 degree position. has been done.
In order to prevent adhesion between the agitator cylinder shaft 8, agitator drive shaft 4, and outer end support shaft 6, a resin bushing 7 that is particularly resistant to chemicals such as fertilizers is inserted. There is.

In the overall configuration as described above, in order to make it possible to dispense irregularly shaped objects such as chicken manure from the conventional dispensing device for dispersing fertilizers and chemicals, the device was devised as shown in the side cross-sectional view of Fig. 3. It is being done.

In other words, since the fertilizers and chemicals that were conventionally sprayed are chemically manufactured, their particle size and moisture content are constant, and the agitator 9 works with almost no variation in agitation and release. It is.

In addition, until now, chicken manure sold as fertilizer was collected by drying and pulverizing it into a powder with a certain moisture content and granular shape, so there was no problem such as clogging when spraying. It was. However, chicken manure that has been dried or crushed in this way is expensive and unprofitable, so we simply collect what has fallen under the gauge at the poultry manure farm, and use raw chicken manure that has not been dried or crushed. There was a need for a machine that could spread chicken manure directly.

However, by putting the raw chicken manure into a conventional spreader,
When spraying, chicken manure with a high moisture content forms a bridge, and the dropping port 23a at the bottom of the hopper bottom plate 23
Therefore, it is not released smoothly.

In addition, the hopper lower plate 23 and the lower shutter 14
If a conventional gap is formed between the lower shutter 14 and the lower shutter 14, the chicken manure that enters the gap dries and sticks, making it impossible to slide the lower shutter 14.

In order to improve these two points, the present invention is constructed as shown in FIGS. 3 and 4.

As the agitator 9 rotates, the chicken manure is carried around, and a cavity is formed only in the rotating part of the agitator 9 among the chicken manure filled in the hopper 3, and in this part, the chicken manure attached to the agitator 9 and its surroundings is removed. As a result, the chicken manure above it forms a bridge, which prevents it from falling.

Therefore, in order to prevent the formation of a cavity in the rotation locus of the agitator 9, the front and rear parts of the hopper lower plate 23 where the agitator 9 rotates are bulged in the downward extending direction of the front and rear plates of the hopper 3. . The bulge forms a crescent-shaped gap a between it and the rotating outer periphery of the agitator 9. That is, by attaching a semicircular arc-shaped hopper lower plate 23 to the lower end of the hopper 3 in the direction of extension of the front and rear plates of the hopper 3, the crescent-shaped gap a is created.

As a result, the chicken manure in the hopper 3 is agitated by the rotation of the agitator 9, and no cavities are formed in the agitator 9 area. The chicken manure that is stirred and rotated by the agitator 9 stimulates the chicken manure above and breaks the bridge.

In order to increase the effect of moving the chicken manure away and breaking the bridge part, the agitator 9 is provided above the closed part of the hopper lower plate 23, avoiding the drop opening 23a. Also, the agitator 9 is connected to the drop port 23a.
By stimulating the upper bridge of chicken manure on the side of the dropping opening 23a, the falling opening 23a is not on the top.
This makes it easier for the chicken manure above a to fall from the drop opening 23a.

In addition, chicken manure gets clogged between the semi-circular arc-shaped lower shutter 14 and the hopper bottom plate 23 which is formed into a substantially concentric semi-circular arc, and dries and sticks to the lower shutter 1.
Since a large force is required to open and close the hopper 4, in order to solve this problem, a gap b is formed between the lower shutter 14 and the hopper bottom plate 23. Chicken manure has a high moisture content and is shaped like a mixture of clumps, so it does not flow out even if there is a small gap, and unlike fertilizer, a small amount spills concentrated on the field. However, since it is slow-acting, it does not have any negative impact on crops.

Considering these points, as an inexpensive and safe solution, a concentric semicircular gap b is formed between the hopper bottom plate 23 and the lower shutter 14 to prevent clogging and prevent the lower shutter 14 from sliding. It makes it smooth.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

Firstly, conventionally, Utility Model Application Publication No. 59-122024,
As described in Japanese Utility Model Publication No. 51-17132, the circle of the agitator's rotation locus and the arcuate lower plate of the hopper were configured to be concentric circles.

Therefore, when the agitator 9 rotates to press the chicken manure, a semi-cylindrical stuck layer of chicken manure with the same thickness is created between the hopper bottom plate and the hopper bottom plate 23. They have approximately the same level of adhesion force over the entire area.

Therefore, since they check each other with the same force, even if the chicken manure around the agitator 9 is pushed down by the chicken manure above due to the vibration of the tractor or spreader, the rotating tip of the agitator 9 will Even if it rotates while contacting the poultry manure fixed layer, the fixed layer of the same thickness will not easily collapse from any part.

On the other hand, in the case of the present invention, a crescent-shaped bulge gap a is formed at the front and rear of the agitator 9 in the downward extending direction of the front and rear plates of the working machine.
Rotation locus of agitator 9 and hopper bottom plate 2
3 is no longer concentric.

Therefore, as the agitator 9 rotates, the layer of poultry manure adhered to the hopper lower plate 23 that forms around the rotation locus does not have the same thickness.

Therefore, the adhesion strength of each part of the poultry manure adhesion layer is different, and when pressed against each other, the adhesion layer tends to collapse.

Therefore, when the poultry manure is pushed from above by the vibrations of the tractor or the spreader and the adhering layer comes into contact with the tip of the agitator 9, the adhering layer of poultry manure collapses due to the frictional force of this contact.

As a result of this action, the chicken manure is agitated by the agitator 9, breaking the bridge above and closing the drop opening 23.
The chicken manure above the part a falls smoothly without being disturbed by the agitator 9.

As a result of the above effects, it has become possible to spread raw chicken manure with a high moisture content, which was conventionally impossible to spread mechanically using a spreader, without clogging.

Second, in the past, the gap between the bottom plate of the hopper and the lower shutter was configured to be narrow, so when the chicken manure caught in the small gap dries and hardens, it becomes stuck between the bottom plate of the hopper and the lower shutter. A large amount of force is required to separate and shear the thinly hardened chicken manure itself, which acts as a glue, into the hopper bottom plate side and the lower shutter side.

On the other hand, as in the present invention, by widening the space between the hopper lower plate 23 and the lower shutter 14 by opening only the arc-shaped gap b, even if a dry layer of poultry manure forms in the area, When the lower shutter 14 is slid, the middle part of the thick dry layer of poultry manure is easily destroyed.

Therefore, it is possible to smoothly open and close the lower shutter 14.

For example, the hopper bottom plate 23 and the lower shutter 1
Even if a gap b is opened between 4 and 4, the raw chicken manure will immediately close the gap, so raw chicken manure will not constantly fall from the gap.

[Brief explanation of drawings]

Fig. 1 is a partially sectional side view of the spreader of the present invention, Fig. 2 is a front view thereof, Fig. 3 is an enlarged side view of the spreader with the lower section of the hopper 3 taken in section, and Fig. 4 is a front sectional view of the same. FIG. 5 is a plan view showing the position of the drop opening 23a of the hopper lower plate 23 and the agitator 9. 1... Worm gear case, 3... Hopper,
8...Agitator cylinder shaft, 9...Agitator,
14...Lower shutter, 14a...Opening, 23
...Hopper bottom plate, 23a...Drop opening.

Claims (1)

[Scope of utility model registration request] By fixing a plurality of agitators 9 to an agitator shaft 8 disposed at the lower part of the hopper 3 and rotating them, a drop opening 2 is opened in the hopper lower plate 23.
In the feeding device that drops chicken manure etc. from 3a,
At the lower end of the hopper 3, a hopper lower plate 23 configured in a semicircular arc shape in the direction along the agitator shaft 8 is attached. The hopper bottom plate 23 and the lower shutter 14 that form the concentric semicircular arc are disposed along the semicircular arc shaped hopper bottom plate 23. A semi-circular gap b is formed between the lower shutter 14 and the lower shutter 14.
A feeding device for a chicken manure etc. spreader, characterized in that an opening 14a provided in the hopper slides to match a drop opening 23a of a hopper bottom plate 23.