JPH04161512A - Device for formation of duct for rice husk - Google Patents

Abstract

PURPOSE:To stabilize flow of rice husks by providing a shutter which opens and shuts the outlet of a hopper, an agitator which agitates the rice husks, and a sliding plate which changes opening of the opening on the outlet of the hopper. CONSTITUTION:A column-like shutter 50 is rotated in an outlet opening 21 of a hopper 20 with a driving section 34, and instantaneous opening and shutting of the opening 21 is made therewith. Rice husks in the hopper 20 are agitated on the upper part of the outlet opening 21 with agitating rods 42 of an agitator 40, and the rice husks that are apt to congregate around the outlet and clog the same are broken up, and the broken-up rice husks are forcibly sent out toward a guide 25 by air jetted from a nozzle 45. Opening of the outlet is adjusted with a sliding plate 50 and, at the same time, the rice husks staying over the plate 50 that is moved forward are sent into an effective opening 21a with an auger 45 of the agitator 40. Thereby stabilized supply of the rice husks in fixed quantity becomes possible.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rice husk culvert for improving the soil layer by forming a rice husk culvert filled with rice husks in heavy clay paddy fields with poor permeability and drainage. The present invention relates to a rice husk forming device, and particularly to a rice husk drain forming device that forms a groove under the ground and then fills the groove with rice husk.

[Prior Art] Conventionally, as this type of rice husk underdrain forming device, for example,
The one shown in the figure is known (Japanese Unexamined Patent Publication No. 1-187
2 ] Published in Publication No. 00.

This rice husk culvert forming device has a connecting member 1 connected to a tractor or the like (not shown) for towing the device, and a blade-shaped groove forming part 2 that forms a hole under the ground, and stores rice husks. The hopper 3 is provided with a cylindrical guide 5 that communicates with the outlet 1'' 3a of the hopper 3 via a vibrator 4 and guides the rice husks flowing out from the hopper 3 into the groove formed by the groove forming part 2. It is. The hopper 3 is also provided with a plate-shaped shutter 6 that is manually slid to open and close the opening 3a of the outlet 11.

When using this device to form a large number of parallel rice husk culverts in, for example, rice fields, first place this device at the location where the rice husk culverts will be formed, and manually open the shutter 6 to an appropriate position to exit the hopper 3. The opening 3a is opened with the opening degree adjusted, and while the groove forming part 2 is vibrated by the vibrator 7 via the arm 7a, the groove forming part 2 is pulled by a tractor or the like to cut open the ground under the ground and form a groove. , the rice husks flowing out from the hopper 3 are passed through the guide 5 and filled into the groove. After forming one rice husk culvert, shack 6
Manually close the rice husk to stop the rice husk from flowing out, then lift the rice husk culvert forming device and turn it over together with the rice husk culvert, etc., lower the device to the next rice husk culvert forming point, and close the shutter 6 again.
Open it and form the next rice husk culvert.

In FIG. 8, reference numerals 2a and 2b are attached to the lower end of the groove forming part 2, and are a chisel and a bullet for forming a passage with a circular cross section underground, 8 is a wheel that supports the connecting member 1, and 9 is a wheel that supports the connecting member 1 when stopped. A stand that supports the device.

[Problems to be Solved by the Invention] By the way, in such a conventional rice husk underdrain forming device, rice husk cannot be stably supplied quantitatively, and the amount of rice husk filled into the groove may be uneven. This caused the problem that the rice husk culvert was not uniform.

One of the reasons for this is that the shutter 6 that opens and closes the outlet opening 3a of the hopper 3 is pushed and pulled and slid.
If there are many rice husks on the shutter G, the sliding resistance will increase due to the load, so the shutter will close immediately ((, Therefore, too many rice husks will come out when the rice husk supply is stopped at the end of groove formation. .

Furthermore, since the rice husks are concentrated at the outlet opening 3a of the hopper 3, the rice husks tend to clog or stay at the outlet opening 3a or in front of it, making the flow of rice husks unstable. Therefore, even if the opening degree of the shutter 6 is adjusted, the amount of rice husk supplied is essentially uncertain.

Therefore, an object of the present invention is to stabilize the outflow state of rice husks so that the rice husks can be quantitatively filled into the grooves.

[Means for Solving the Problems] The technical means of the present invention for solving such problems is as follows. A rice husk underdrain forming device comprising a cylindrical guide that communicates with the hopper to guide the rice husks flowing out from the hopper into the groove formed by the groove forming section, (1) comprising a shutter for opening and closing the outlet opening; The shutter is formed into a cylindrical shape with a through hole and is pivotally supported on the outlet opening forming part so as to be able to rotate within the outlet opening of the hopper, and the through hole of the shutter communicates with the hopper and the guide to open the outlet opening. A drive unit is provided for rotationally driving the shutter in two positions: an open position where the through hole is in a non-communicating state and a closed position where the exit opening is closed.

Further, (2) it is equipped with an agitator provided above the outlet opening of the hopper to agitate the rice husks, and an air nozzle that blows air from inside the hopper toward the guide.

Furthermore, (3) a slide plate that is slidably provided in the outlet and opening forming part and advances to change the opening degree of the outlet opening; It is equipped with a spiral auger that feeds into the effective opening.

[For A] According to the rice husk underdrain forming device according to the first invention, the shutter is rotated by the drive unit to open and close the outlet opening of the hopper;
Since it rotates within the outlet opening, it opens and closes instantly.

According to the rice husk underdrain forming device according to the second invention, the rice husks are stirred by the agitator in the V direction of the outlet opening of the hopper,
As a result, the rice husks that tend to concentrate and clog the outlet are broken up, and the rice husks that tend to stay at the open end are forcibly sent toward the guide by the air jetted from the air nozzle.

According to the rice husk underdrain forming device according to the third invention, the opening degree of the outlet opening is adjusted by the slide plate, and even if the rice husks try to stay on the advanced slide plate, the rice husks are forcibly removed by the auger. sent into the opening.

[Example] Hereinafter, a rice husk underdrain forming apparatus according to an example of the present invention will be described in detail based on the accompanying drawings.

As shown in FIGS. 1 to 5, the rice husk underdrain forming device according to the embodiment includes a machine frame 10, a groove forming part 15 that forms a groove under the ground, a hopper 20 that stores rice husk M, and a hopper. 20
The hopper is provided with a cylindrical guide 25 that communicates with the outlet opening 21 of the hopper and guides the rice husks M flowing out from the hopper 20 into the groove formed by the groove forming part 15.

A connecting portion 12 is formed in the front portion 11 of the machine frame 1O to be connected to a crawler type or wheel type tractor T or the like for towing the device. Further, as shown in FIG. 1, a net-shaped placement plate 13 for placing a bag of rice husk M is provided around the machine frame 10 except for the front part 11.

The groove forming part 15 is inserted under the ground, and is formed into a blade shape that cuts through the ground under the ground and forms a groove by the traction force of the tractor T, etc., and is fixed to the rear side of the front part 11 of the machine frame 10. It is installed and hangs below this machine frame 10. A groove portion 16 is formed at the lower end of the groove forming portion 15.

The hopper 20 is formed into a rectangular columnar shape, and has a convergent lower end, and an outlet opening 21 having a rectangular cross section extending in the front-rear direction of the apparatus is formed at the leading end. As shown in FIG. 3, the outlet opening 21 is formed by a cylindrical opening forming part 22 having a predetermined width L1 in the vertical direction. Further, the hopper 20 includes a support member 2
3 to the machine frame 10, and is supported by a guide 25, which will be described later. Further, as shown in FIG. 2, a transparent window 24 is provided on the wall of the hopper 20 so that the amount of rice husk M can be visually observed.

The guide 25 is formed into a substantially rectangular cylindrical shape (for example,
Approximately 90cm in length from top to bottom, and approximately 65cm in width in front and back direction.

It is formed to have a thickness of about 7 crrl), is integrally connected to the rear side of the groove forming part 15, and has an upper end 25a connected to the opening forming part 22. Further, as shown in FIG. 4, the upper end portion 25a has side plates tapered so as to converge downward. Furthermore, as shown in FIGS. 4 and 7, about two-thirds of the lower rear side of the guide 25 is open, and as shown in FIG. 3, the lower rear side of the guide 25 is cut out. A cutout portion 26 is formed. Furthermore, the lower side of the front side of the rice husk passage of the guide 25 has a guide surface 2 which is curved in a concave shape.
7.

Furthermore, the rice husk underdrain forming device according to the embodiment is shown in FIGS. 3 and 5.
As shown in FIG. 6, the outlet opening 21 of the hopper 20
It is equipped with a shutter 30 that opens and closes. This shutter 3
0 is formed in a cylindrical shape with a through hole 31, and has rotating shafts 32 provided at both ends of the opening forming part so that it can rotate within the exit opening 21 with its axis along the front-rear direction of the device. 22
It is supported by a shaft. In addition, this rice husk underdrain forming device has the shutter 30 placed in an open position A where the through hole 31 communicates with the hopper 20 and the guide 25 to open the outlet opening 21, and the through hole 31 is placed in a non-communicating state. ] A drive unit 34 is provided which rotates the drive unit 34 in two positions: a closed position B that closes the opening 21 and a closed position B. As shown in FIG. 4, the drive section 34 fixes an arm 35 to a rotating shaft 32 protruding from the rear side of the opening forming section 22, and rotates the arm 35 so that the shutter 30 is in the closed position B.
A spring 36 is provided on the rear side of the opening forming portion 22, and a tension mechanism 37 is provided to pull the arm 35 against the force of the spring 36 to move the shutter 30 to the open position A. . The tensioning mechanism 37 is composed of a wire 38 for pulling the shutter 30 and a lever 39 installed on the tractor 1' side for pulling the wire 38.

Further, above the outlet opening 2I of the hopper 20, as shown in FIGS. 3, 5, and 6, an agitator 40 for stirring the rice husk M is provided. This agitator 40 extends through the front and rear walls of the hopper 20 and is pivotally supported.
41, a plurality of stirring rods 42 fixed to the front side of this shaft 41, and a spiral auger fixed to the rear side of the shirt I 41 to stir the rice husks M and then feed the rice husks M to the center side of the outlet opening 21. It consists of 43. As shown in FIGS. 2 and 5, the shirt 41 of this agitator 40 is rotated by a transmission mechanism 44 to a gear 1 provided in the machine frame 10 and transmitting a power source from the tractor 1' side. Furthermore, the front end of the outlet opening 21 on the side of the agitator 40-F, and the rear side of the outlet opening 21 on the upper side of the agitator 40.
An air nozzle 45 for jetting air toward the guide 25 is provided on the second side. As shown in FIG. 5, the air supply source to this air nozzle 45 is a rotary compressor 46, which is attached to the machine frame 10 and driven by the belt transmission mechanism 44 described above. .

Further, on the lower side of the agitator 40, as shown in FIGS. 3 to 6, a slide plate 50 is slidably provided behind the opening forming part 22 and advances to change the opening degree of the outlet opening 21. It is provided. This slide plate 50 is
It is formed to a length that closes approximately two-fifths of the outlet opening 21 when it is fully advanced, and is moved forward and backward by the feed screw mechanism 51. The feed screw mechanism 51 has a female threaded portion 52 provided on the slide plate 50, and a threaded portion 52 on the rear side of the opening (co-forming portion 22).
It is composed of a male threaded part 54 which can be rotated at 3 and 6 and is screwed into the female threaded part 52, and a handle 55 which rotates the male threaded part 54.

Incidentally, the auger 43 for feeding the rice husks M on the slide plate 50 into the effective opening 21a of the outlet frontage 21 is located on one side of the advanced slide plate 50.

Furthermore, as shown in FIGS. 1 and 2 (not shown in other drawings), on both sides of the front part 11 of the machine frame jO, there is a structure that supports the device while sliding on the ground; Maintaining the depth of the groove forming portion 15 below the ground constant;
A leg-shaped support slider 60 is provided. This support slider 60 changes its ground contact position to provide the groove forming portion I5.
The vertical position of the machine frame 1 can be adjusted so that the depth of the machine can be adjusted.
0 (-1).Furthermore, a plurality of rod-shaped stands (not shown) for supporting the device when the device is not in use can be removably attached to the machine frame 10. It has become.

In FIG. 1, reference numeral 61 is a mirror provided in the hopper 20 for checking the rear of the apparatus.

Therefore, with the rice husk underdrain forming device according to this embodiment,
For example, when forming a large number of parallel rice husk culverts in a rice field, as shown in FIG. The opening of the outlet opening 21 of the hopper 20 is set to a required value by advancing the hopper 20 to an appropriate position by operation.

Then, this device is placed at the place where the rice husk culvert is formed, and the shutter 30 is set to the open position A by operating the lever 39.
The shaft 41 of the agitator 40 and the compressor 46 are not driven, and then the device is towed by a tractor T or the like. As a result, the ground is cut open by the groove forming part 15 to form a groove (and at the same time, the rice husks M flow out from the hopper 20 and are filled into the groove through the guide 25.

In this case, when setting the shutter 30 to the open position A, the shutter 30 is moved to the exit opening 2 by the drive unit 34.
Since it is rotated within 1, it can be easily moved even when the load of rice husk M is applied, so that the through hole 31 is immediately communicated and the outlet opening 21 is opened. For this reason, the rice husks M are reliably supplied from the start of towing of the device.

Also, in the towing process of the device, the outlet opening 21 of the hopper 20
Since the rice husks M are agitated by the agitator 40 above, even if the rice husks M are concentrated at the outlet and try to clog or stay, the rice husks M are broken up, and the broken rice husks M can be broken up by the air ejected from the air nozzle 45. guide by 2
5, and therefore flows out to the guide 25 without becoming clogged or stagnant. In particular, due to frictional resistance with the internal surface of the hopper 20,
Although the rice husks M tend to stay at the I end, since the air nozzle 45 is provided at the end of this outlet opening 21,
Since the air flows along the end surface of the outlet opening 21, the flow of the rice husk M on the end surface becomes smooth, and together with the above-mentioned stirring, stagnation is suppressed, and the rice husk M is reliably sent to the guide 25. become. Therefore, the flow of rice husks M is stabilized because the situation where the rice husks M become clogged or stagnate is prevented.
The rice husk M passes through the guide 25 and is quantitatively filled into the groove.

Furthermore, the rear side of the guide 25 is opened, and the curved guide surface 2
Since the rice husks M are guided to the rear side by the guide 7, the rice husks M are discharged from the rear side. Therefore, the situation where the rice husks M get stuck between the lower surface of the guide 25 and the bottom of the groove is prevented, and the rice husks are removed. Filling of M is performed reliably.

Furthermore, in this case, the rice husks M on the advanced slide plate 50 are likely to stay there, but since the rice husks M on the slide plate 50 are fed into the effective opening 21a by the auger 43 portion of the agitator 40, there is no possibility that the rice husks M on the slide plate 50 will stay there. Prevented. Moreover, since air is injected from the air nozzle 45 on the slide plate 50, the rice husk M
The rice husks M are stirred and fed into the guide 25, and in this respect as well, the rice husks M are prevented from staying.

After forming one rice husk culvert, the shutter 30 is set to the closed position B. In this case, shutter 3
0 is rotated within the outlet opening 21 by the drive unit 34, so it moves easily even when the load of the rice husk M is applied, so that the outlet opening 21 is immediately closed. Therefore, the rice husk supply is reliably stopped at the end of forming one rice husk underdrain, and a situation in which too much rice husk M comes out is prevented.

After that, the rice husk culvert forming device is lifted and turned around together with the tractor T, etc., and the device is lowered to the location where the next rice husk culvert shape is formed, and the shutter 3o is set to the open position A again to form the next rice husk culvert. .

In the above embodiment, the groove forming part 15 is made into a blade shape, but it is not necessarily limited to this. (It is also possible to use a digging type such as a die, rotor, or auger, and change it as appropriate.) In addition, although the driving unit 34 of the shutter 3o is configured such that the arm 35 is rotated by a lever 39 via a wire 38, it is not necessarily limited to this, and the arm 35 can be rotated manually. 35
It may be configured with a handle provided on the side (or may be modified as appropriate, such as configured to be rotated by a geared motor).

[Effects of the Invention] As explained above, according to the rice husk underdrain forming device of the present invention, the outflow state of rice husks can be stabilized and the rice husks can be quantitatively filled into the grooves, and the rice husks can be formed with stable drainage effects. A culvert can be formed.

That is, according to the rice husk underdrain forming device according to the first invention, since the shutter is rotated within the outlet opening by the drive unit, it can be easily moved even when the load of rice husks is applied, and the through hole can be immediately closed. The outlet opening can be opened and closed with or without communication. Therefore, at the start and end of forming the rice husk culvert, it is possible to prevent a situation in which the rice husk is insufficiently or excessively released, the outflow state of the rice husk is stabilized, and the rice husk can be quantitatively filled into the groove.

Furthermore, since the shutter can be opened and closed by rotation, it can be easily operated, and operability has been improved, such as remote control.

According to the rice husk underdrain forming device according to the second invention, the rice husks are agitated by the agitator on both sides of the hopper's outlet opening, so that even if the rice husks concentrate in one outlet and try to clog or stay there, the rice husks do not collapse. At the same time, the broken rice husks are forcibly sent toward the guide by air ejected from the air nozzle, so they flow into the guide without becoming clogged or stagnant. As a result, the outflow state of rice husks can be stabilized, and the rice husks can be quantitatively filled into the grooves.

According to the rice husk underdrain forming device according to the third invention, the opening degree of the outlet opening is adjusted by the slide plate, and the rice husks on the slide plate are forcibly fed into the effective opening by the auger. The amount of outflow can be adjusted while preventing the rice husks from staying in the grooves, and in this respect as well, there is an effect that the outflow state of the rice husks can be stabilized and the rice husks can be quantitatively filled into the grooves.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a rice husk underdrain forming device according to an embodiment of the present invention together with its state of use, FIG. 2 is a front view showing a rice husk underdrain forming device according to an embodiment, and FIG. 3 is a side view thereof.
FIG. 4 is a rear view thereof, FIG. 5 is a plan view thereof, FIG. 6 is a perspective view showing the main parts of the rice husk underdrain forming device according to the embodiment, and FIG.
The figure is a side sectional view showing the operation of the rice husk underdrain forming device according to the embodiment, and FIG. 8 is a side view showing an example of the conventional rice husk underdrain forming device. M...Rice husk 10...Machine frame 15...Groove forming portion 20...Hopper 21...Exit opening 22... - Opening forming part 25...Guide 30...Shutter 31...Through hole Δ...Open position B...Closed position 34... ... Drive unit 40 ... Agitator 42 ... Stirring rod 4:3 ... Auger 45 ... Air nozzle 46 ... Compressor 50 ... Slide plate 51... ・Feed screw mechanism

Claims (3)

[Claims] (1) A groove forming part that forms a groove under the ground, a hopper that stores rice husks, and a cylindrical part that communicates with the outlet opening of the hopper and guides the rice husks flowing out from the hopper into the groove formed by the groove forming part. In the rice husk underdrain forming device comprising a guide and a shutter for opening and closing the outlet opening, the shutter is formed in a cylindrical shape with a through hole and is attached to the outlet opening forming part so as to be rotatable within the outlet opening of the hopper. The shutter is pivoted and rotated to two positions: an open position where the through hole of the shutter communicates with the hopper and the guide and opens the outlet opening, and a closed position where the through hole is disconnected and the outlet opening is closed. A rice husk underdrain forming device characterized by being provided with a driving part for driving. (2) A groove forming part that forms a groove under the ground, a hopper that stores rice husks, and a cylindrical part that communicates with the outlet opening of the hopper and guides the rice husks flowing out from the hopper into the groove formed by the groove forming part. In the rice husk underdrain forming device equipped with a guide, an agitator provided above the outlet opening of the hopper to agitate the rice hus;
A rice husk underdrain forming device comprising: an air nozzle that blows air from inside a hopper toward a guide. (3) A groove forming part that forms a groove under the ground, a hopper that stores rice husks, and a cylindrical part that communicates with the outlet opening of the hopper and guides the rice husks flowing out from the hopper into the groove formed by the groove forming part. A rice husk underdrain forming device equipped with a guide, a slide plate that is slidably provided in the outlet opening forming part and advances to change the opening degree of the outlet opening, and a rice husk on the slide plate that is provided above the advanced slide plate. A rice husk underdrain forming device comprising: a spiral auger for feeding rice into an effective opening of an outlet opening.