JP2002142502A - Working machine for forming material-fed underdrain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working machine for forming a material-fed underdrain, capable of continuously forming the material-fed underdrain of which the water permeability can be controlled so that the underdrain has the water permeability corresponding to condition of a farm field, when the material-fed underdrain is formed in the farm field. SOLUTION: This working machine for forming the material-fed underdrain is attached to a tractor to be operated, wherein the working machine has a mechanism for hitching itself to the tractor positioned on its front, a machine frame for constituting the working machine, a holding tank loaded on the machine frame and used for holding a water-permeable material, such as rice hulls, stirring blade shafts located in a space near the bottom of the tank to be vertically positioned on two stages and used as a promoting means for feeding the water-permeable material, a long feed opening arranged in a longitudinal direction and upward opening in a space immediately under the stirring blade shafts, and a pair of two guide plates for forming a feed space into which the water-permeable material, such as rice hulls, can be continuously fed from the feed opening, so that a depth of the underdrain into which the water-permeable material is fed is selectively controlled to fit the condition of the farm field.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material culvert forming machine, and more particularly, to a material culvert capable of efficiently and reliably forming a material culvert for promoting drainage in a field such as a paddy field. It relates to a forming machine.

[0002]

2. Description of the Related Art A known culvert forming machine is equipped with a hopper for storing rice hulls on a frame of the working machine, and then moves while supplying rice husks to a space excavated with a knife beam. Then, a rice husk wall is formed inside the field, water that permeates the wall of the rice husk is collected, and the moisture is further led to a culvert filled with rice husk. As a specific prior art, Japanese Patent Application Laid-Open No. 12-125603 can be cited as the one proposed earlier by the present application.

[0003]

SUMMARY OF THE INVENTION By appropriately removing the water in the field, the environment in the soil can be adjusted and the growth of the crop can be promoted. In the working machine described in the above-mentioned prior art example, a pipe is laid in a culvert portion, and the work of laying this pipe in the soil is considerably troublesome. In other words, in the operation several meters from the ridge, the space is formed diagonally as the introduction section of the knife beam, and the work machine moves to horizontal movement and the culvert pipe is laid. Will be needed. In addition, when the pipe is cut off during the work and the pipe is connected, the manhole is excavated enough to allow the worker to enter the pipe, and then the worker becomes a culvert at the cut end of the pipe. After connecting a new pipe, it is necessary to resume work. Therefore, there is a problem that the work is interrupted on the way and continuous work becomes difficult. Therefore, an object of the present invention is to provide a working machine capable of continuously and efficiently performing a material culvert forming operation without intermediate work.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a material culvert forming work machine mounted on a tractor and used, with a hitch mechanism for a tractor disposed at a front portion. A working machine frame constituting a working machine, a tank mounted on the working machine frame for housing a permeable material such as rice hulls, and two vertically arranged tanks near the bottom of the tank. And TPO of tractor
A stirring blade shaft that can be connected to the shaft, a supply port that is open immediately below these stirring shafts and that is long in the front-rear direction, and is disposed on both sides of the supply port and has a vertical height 2 A pair of permeable material introduction plates, a knife beam arranged at a front end position of the permeable material introduction plate to form a space for accommodating the permeable material, and a knife beam in a plane along the working direction. And a swing mechanism for swinging in the front-rear direction. The lower end of the space formed by the water permeable material introduction plate is open to the space formed by the beam knife, and the lower end of the knife beam is A space is easily formed by swinging back and forth in the traveling direction, and a water-permeable material is formed by dropping and supplying a water-permeable material into the formed space. It is assumed that. Therefore, during the operation, continuous forming work can be performed except for running out of the water permeable material, and when the water permeable material runs out, the operation of the work machine is temporarily stopped, but the supply of the water permeable material is simply performed by loading the hopper and the work is performed again. Can be restarted, so that the work does not have to go down from the tractor to perform a digging operation and the like, which is efficient. Further, the rear end of the space formed by the pair of two water-permeable material introduction plates in the advancing direction is opened to serve as a water-permeable material supply port, and is formed by a knife beam. It is possible to fill almost the entire space to be filled, and to increase the water permeation effect. Further, the water-permeable material supply port in the space formed by the pair of two water-permeable material introduction plates is characterized in that the opening area thereof can be adjusted, so that the space formed by the knife beam. In other words, the filling depth of the water-permeable material can be selected as needed, that is, the filling depth. Furthermore, since the water-permeable material supplied from the water-permeable material outlet is pressed from the surface side to increase the density of the water-permeable material, the water-permeable material can be increased in density according to the water content of the field. The density of the permeable material can be selected to select the permeable and drainage capacity. In addition, the knife beam swinging mechanism is characterized in that the knife beam is swung by a crank motion taken out from a transmission shaft that can be connected to the TPO shaft of the tractor, so that the knife beam is swung. The inside is reliably driven, so that the space formed by the knife beam can be reliably formed.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In these figures, the symbol T indicates a tractor, and the tractor T is equipped with a material culvert forming machine 10 (hereinafter referred to as a machine) using a three-point hitch. The working machine 10 includes an upper link 31 and a lower link 3.
A mast 11 for mounting a three-point hitch mechanism constituted by 2 and a rear mast 11A, and a cross shaft 12 is mounted below the mast in a side view.

Further, on the working machine frame 10,
At its front position, there is a transmission shaft 13 which can be connected to the TPO shaft 33 of the tractor T.
In addition, there is a drive shaft 14 that can be further connected, which is supported and mounted by a support bearing 15. A tank 16 for storing rice hulls as a permeable material is mounted at a position behind the drive shaft 14.

The tank 16 has a quadrangular shape in a plan view, and has a quadrangular pyramid shape in which the shape of the tank 16 becomes a bottom. The bottom of the tank 16 is surrounded by side plates 17A and 17B facing each other to form a tank bottom space 17. The bottom of the bottom space 17 is open, and the open space serves as the supply port 17X for the chaff. A stirring blade shaft 18 having a stirring blade 18A mounted thereon is mounted in a state of crossing this space and on the same axis as the transmission shaft 14. This stirring blade shaft 18
With the rotation of, the stirring blades stir the rice hulls to forcibly feed the rice hulls while preventing clogging.

The agitating blade shaft 18 is connected to the bottom space 17.
Is supported by a bearing 18X with respect to a side plate 17A which forms the bottom space 17A, and another stirring blade shaft 19 is supported by the side plate 17A in parallel with the stirring blade shaft 18. Are connected to each other by a chain 20 and are also driven to rotate. A stirring blade 19A is also attached to the stirring shaft 19, so that the chaff falling from the tank 16 can be stirred without being clogged. The stirring blade shafts 18, 1
9 is a two-stage upper and lower, so that the rice hulls are clogged at the boundary between the bottom space 17 and the tank 16 so as not to hinder the fall of the rice husks, enabling smooth rice husk supply I have. This means that the permeable material has volcanic ash,
It is effective when sand, wood chips, and gravel are selected and used.

Further, a front end of an arm 22 of a knife beam 21 which will be described later extends to a front end of the work machine frame 11, and extends downward at a right angle to a swing fulcrum shaft 23. The knife beam 21 can swing in a vertical plane. A swinging mechanism 24 connected by a crank arm is formed between the arm 22 and the transmission shaft 14 so that the rotational motion of the transmission shaft 14 is converted into a crank motion, and the knife beam 21 is positioned at the lower end. The provided chisel 21 </ b> A can swing in the front-rear direction of the work around the swing fulcrum shaft 23 to perform the excavation movement.

The open bottom of the bottom space 17 has 2
A pair of permeable material introduction plates 24, 24 are arranged, and the upper ends of the permeable material introduction plates 24, 24 are fixed to side plates forming the bottom space, and the width thereof increases toward the lower end. Direction is narrowed, but the knife bead
The dimensions are set so as not to interfere with the swinging motion of the arm 21. The space formed by the water-permeable material introduction plates 24, 24 has an open space at the front end allowing swinging of the knife beam 21 and an upper end serving as a supply port for chaff to be supplied and dropped. Then, the rear end portion is gradually reduced in the dimension in the height direction, and serves as a supply port 24A for the rice husks supplied and dropped from above.

The supply port 24A is provided with a shutter 24B for adjusting the degree of opening from fully open to fully closed. The shutter 24B is slid up and down to adjust the opening area of the supply port 24A. Can be done. Therefore, when the shutter 24B is pulled up to the highest position, the opening degree of the supply port 24A becomes maximum,
The space can be filled up to the highest position of the space where the water permeable material is filled. When the shutter 24B is lowered to the lowest position, a space in which rice husk is not filled is formed above the space in which the water permeable material is filled. This is used when selecting how much rice hulls are filled according to the water environment of the field. The permeable material is used not only for rice husk but also for determining the filling depth depending on which permeable material is used, such as volcanic ash, wood chips, sand, and gravel.

The lower end portions of the water permeable material introducing plates 24, 24 are also open, forming a rice husk falling port 24C. Although the opening area of the fall port 24C is not adjustable, the bottom space 17
A damper-type adjusting plate is provided in the rice husk supply passage leading to the opening so that the opening can be adjusted.

[0013] It is also necessary to increase the density of the rice husk chaff and adjust the degree of water permeation by compressing the rice hull filled in the interior space of the space for filling with the water permeable material from the upper side. As shown in FIG. 5, the arm 25 for adjusting the length of the arm, such as a tan buckle, is attached to the permeable material introduction plate or the working machine frame 11 in a swingable state.
A pressing wheel 25A having a width capable of being fitted into the rice hull filling space is attached to the end thereof, and the degree of compression of the rice hull is selected depending on the position of the pressing wheel 25A fitted into the rice hull filling space.

In these drawings, reference numeral 26 designates a gage wheel, which is an end of an arm 26A whose end is pivotally connected to the frame of the working machine. It is attached to and is rotatable. This arm 26
By selecting the ground angle of A, the excavation depth by the knife beam 21 can be determined. Reference numeral 27 denotes a stand used when the work machine 10 is in a stable state and is used for storage on the surface of a field or when the work is completed. A total of four stands are used.

Next, a description will be given of the actual operation using the working machine for forming a material culvert according to the present invention. Knife bead of this work machine
The paddle 21 is introduced into the soil inside the field, and the stirring wing shafts 18 and 19 driven by the output of the tractor and the knife beam 21 driven by the rocking mechanism swing to form the rice hull filling space K. At the same time, the rice husks loaded in the tank 16 are continuously supplied into the space formed by the permeable material introduction plate 24 into the space filled with the rice hulls through the supply port 24A and further through the drop port 24C. You. At this time, the filling space of the rice hull is formed after the knife beam 21 has passed, and to what depth (filling height) the rice hull is filled is determined by the opening of the shutter 24B. .

Further, when the filled rice hull is pressed from above, the compression action of the pressing wheel 25A is used. The closer the upright angle of the arm 25 is to a right angle, the more the rice hulls can be filled in a compacted state, the collapse of the surrounding soil in the rice hull filling space can be prevented, and the mixing with the soil can be delayed. In other words, it can maintain a permeate space for many years. In the above description, two pairs of permeable material introduction plates 24,
Although the example using 24 has been given, a single plate may be formed in a U-shape as long as it does not interfere with the swinging motion of the knife beam 21. What is necessary is just to be able to supply.

[0017]

As is apparent from the above description, according to the underdrain forming machine of the present invention, when filling the filling space formed by the knife beam with the permeable material represented by rice hulls, etc. By adjusting the opening area of the supply port, the filling height of the water-permeable material can be selected and adjusted according to the water environment of the field. Further, it is possible to select the packing density of the filled permeable material according to the environment in which the moisture in the field and the like are taken into consideration.

[Brief description of the drawings]

FIG. 1 is a side view of an underdrain forming working machine according to the present invention.

FIG. 2 is a plan view of the underdrain formation working machine.

FIG. 3 is a rear view of the underdrain formation working machine.

FIG. 4 is a rear view of a portion for adjusting a supply state of a permeable material to a filling space.

FIG. 5 is a side view of a pressing wheel for adjusting a packing density of a permeable material. FIG.

[Explanation of symbols]

 T Tractor K Filling space for permeable material 10 Working machine 11 Working machine frame 12 Cross shaft 13 Conducting shaft 14 Drive shaft 16 Tank 17 Bottom space 17A, 17B Side plate 17X Rice husk supply port 18 Stirring blade shaft 19 Stirring blade shaft 18A, 19A stirring blade 20 chain 21 knife beam 22 arm 23 swing support shaft 24 swing mechanism 24 water permeable material introduction plate 24A supply port 24B shutter 24C drop port 25 arm 26 gauge wheel 26A arm 27 Stand 31 Upper link 32 Lower link

Claims (5)

[Claims] 1. A work machine frame which constitutes a work machine having a hitch mechanism with a tractor arranged at a front part, and a work machine frame comprising the work machine and the work machine. A tank mounted on the frame for storing a water-permeable material such as rice hulls, and a stirring blade shaft arranged in two stages vertically near the bottom of the tank so that it can be connected to the TPO shaft of the tractor. A supply port open in the front-rear direction opened immediately below the stirring blade axis, a pair of water-permeable material introduction plates disposed on both sides of the supply port and having a vertical height, A knife beam arranged at a front end position of the material introduction plate to form a filling space for accommodating a water permeable material, and a swing mechanism for swinging the knife beam back and forth in a plane along the working direction. And the water-permeable material is provided. The lower end of the space formed by the plate is open to the filling space formed by the beam knife, and the lower end of the knife beam is swung back and forth by the swing mechanism in the traveling direction. And a water permeable material is dropped and supplied into the formed filling space so as to promote water permeation by the water permeable material. 2. The material according to claim 1, wherein a rear end in a traveling direction of a space formed by the pair of two water permeable material introduction plates is opened to serve as a water permeable material supply port. Culvert formation machine. 3. The culvert according to claim 1, wherein a water-permeable material supply port in a space formed by the pair of two water-permeable material introduction plates is configured such that an open area thereof can be adjusted. Work machine. 4. The material according to claim 1, wherein a density of the water-permeable material can be increased by pressing the water-permeable material supplied from a supply port of the water-permeable material from a surface side thereof. Culvert formation machine. . 5. The knife beam swinging mechanism according to claim 1, wherein said knife beam is swung by a crank motion taken out of a transmission shaft connectable to a TPO shaft of a tractor. The described culvert forming machine.