JP3504083B2 - Flame weeding equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a flame weeding device for incinerating and exterminating high temperature extermination of seeds of weeds and disease fungi in soil by blowing a flame onto the soil.

[0002]

2. Description of the Related Art Swidden farming has been known for a long time as a means for incinerating weed seeds and disease-causing fungi in soil in a field, and in recent years, a flame is sprayed from a portable burner device. Portable flame weeders have been used that spray onto the surface of the field.

[0003]

In the slash-and-burn farming method, the conventional measures have become unusable due to the problems that the surrounding forests may be burnt and the air pollution may occur. A portable flame weeder using a portable burner device has a low efficiency and has a problem that it can be used only in a small area.Therefore, weed seeds and disease fungi in the soil of a field have a large area. Incinerating with high efficiency
There has been a demand for means capable of performing high-temperature killing treatment.

The present invention has been made in order to solve the above-mentioned problems occurring in the conventional means, and the high temperature treatment by blowing a flame onto the soil in the field is not performed as a special work, and the field is not treated. The purpose of the present invention is to provide a new means that enables high-efficiency work at the same time as the work of plowing the soil.

[0005]

According to the present invention, as means for achieving this object, a rotor claw of a rotary tiller R mounted on a self-propelled vehicle or a vehicle of a tractor T is mounted. The lower edge of the rear half of the arc-shaped top plate portion 20a of the rotary cover 20 that surrounds the upper half of the rotation locus of 25 is formed on the rear cover 26 made of a flexible material. From a fuel tank 30 charged with kerosene or LP gas, an igniter for igniting and burning fuel supplied from the burner main body 3 for accommodating a blower for delivering combustion air, and an exhalation cylinder 33 for discharging its flame. Burner device B
The flame-releasing cylinder 33 for discharging the flame of the burner body 3 is arranged and mounted so as to face the rear of the rear cover 26,
Behind the rotary cover 20, a shielding plate 4 made of a refractory material is formed and arranged in an inverted bowl shape, and its front end side is connected and connected to the rotary cover 20. The inner side is formed in the combustion chamber F, and the tip of the flame discharge tube 33 provided in the burner body 3 is connected to the top plate portion 20a of the shielding plate 4.
The rotor claw 2 is made to rush into a combustion chamber F formed inside the shielding plate 4 through a through hole provided in the combustion chamber F, and the flame ejected from the flame discharge tube 33 keeps the combustion chamber F at a high temperature.
5, the cultivated soil flowing from the rotary cover 20 into the combustion chamber F through the rear cover 26 through the rear cover 26 is treated at high temperature, and the rear edge side of the shielding plate 4 is obliquely directed rearward and downward. A flame weeding device characterized by lowering and forming a leveled sled plate 40 on the lower end side thereof is proposed, and in addition to this, the rotation direction of the rotor shaft 24 of the rotary tiller R is set to the rotor claw 25. Is set in a direction of cutting from the rear side to the front side with respect to the soil surface of the field, and a large number of rigid tooth rods 260 ... Are arranged in parallel in a comb shape at the rear edge of the arc-shaped top plate portion 20a of the rotary cover 20. A rotor claw 2 which is provided with a rake-shaped rear cover 26 and rotates
The finely crushed soil in the rotary cover 20 due to 5 is rotated by the rotor pawls 25 which are rotated from the upper side along the inner surface of the rear cover 26 through the gap between the tooth rods 260 ... The flame weeding device according to claim 1, wherein the flame weeding device is introduced into the combustion chamber F and is subjected to high temperature treatment in the combustion chamber F.

[0006]

According to the means of the present invention configured as described above, when the rotary tiller R is used to cultivate the soil in the field, the rotor pawls 25 are rotated about the shaft 24 by driving the rotor shaft 24. Rotary cover 2 that encloses the upper half of the trajectory
Combustion chamber F consisting of a shielding plate 4 made of refractory material provided in the rear of 0
The flame ejected from the tip of the flame extinguishing tube 33 of the burner device B provided above the rotary cover 20 is blown into the inside of the rotary cover 20, and the flame is maintained at a high temperature and burns therein. Rear cover 26 that can be installed vertically
The finely crushed crushed soil released through the lower edge side of the crushed soil is thrown in so as to flow in a flying manner, settles while undergoing heat treatment to lower the temperature due to the flame, and is crushed roughly by the rotor claw 25 Since it will be deposited as surface soil on the surface soil, weed seeds and regenerated roots and pests and disease fungi in the surface soil after plowing will be efficiently incinerated or treated at high temperature. The germination and regeneration of weeds after tilling can be effectively prevented, and pests and diseases can be controlled.

[0007]

Embodiments Next, embodiments will be described in detail with reference to the drawings. FIG. 1 is a vertical side view of a flame weeder A according to the present invention.

This flame weeder A is of a form adapted to a towed rotary tiller R for plowing and crushing soil in a field by connecting and towing a towing vehicle such as a tractor T to drive the soil. The tractor T, which is its towing vehicle, shows only the rear end portion, and most are omitted.

In the figure, T is a tractor which is a towing vehicle showing only the rear part of the machine body, and R is the tractor T.
Of the rotary tiller, which is connected and towed to the rear of the body of the vehicle through a three-point link hitch 1, F is a combustion chamber made of a refractory material installed behind the rotary cover 20 of the rotary tiller, and B is a rotary of the rotary tiller R. The burner device is arranged and installed on the rear side of the upper surface of the cover 20.

Rotary tiller R made towed
Is a gearbox 22 containing a transmission mechanism (not shown) driven by conducting the input shaft 21 through a PTO shaft 10 mounted on the rear surface of the body of the tractor T and a universal joint shaft 11. A chain case 23 integrally assembled to the gear box 22 so as to store a conduction chain that conducts with its output shaft (not shown) and hang downward from one of the left and right sides of the gear box 22 rearward and downward. , A rotor shaft 24 that is bridged between the other side of the gear box 22 and a machine frame that is provided so as to hang down in parallel with the chain 23.
4, a plurality of blade-shaped rotor claws 25 ... Radially protruding from the rotor 4 mounted in parallel in the axial direction of the rotor shaft 24 in a front view, and rotation of projecting ends of the rotor claws 25. A rotary cover 2 integrally mounted and supported on the gear box 22 so as to surround the upper half of the locus.
A gearbox 22 which is a conventionally known one made up of 0 or the like, and which is the main frame of the machine, is provided with a top link bracket 12 and left and right lower link brackets 13 and 13 provided on the rear surface of the body of the tractor T. (Not explicitly stated)
Top link 14 and left and right lower links 15
It is connected and mounted via 15, and its lower link 15 ・ 1
By connecting 5 to a hydraulically operated lift arm 16 provided at the rear of the body of the tractor T via a connection link 17,
The operation of the lift arm 16 allows the mounting height position to freely move up and down, and the input shaft 21 protruding to the front surface of the gear box 22 is connected to the PTO shaft 10 of the tractor T via the universal joint shaft 11. The rotor pawls 25 ... Are rotated and driven by a prime mover on the tractor T side so as to rotate counterclockwise around the rotor shaft 24 in FIG.

Further, the rotary cover 20 of the rotary tiller R has a plurality of rotor claws 25 ... Surrounding the upper peripheral surface side of the rotor pawls 25. The side wall portions 20b, 20b are made of a steel plate or the like in a rigid body, but the lower edge of the arc-shaped top plate portion 20a on the latter half side is formed on the rear cover 26 made of a flexible material such as rubber droop. As the rotor claws 25 rotate, the rear cover 26 holds down the crushed soil of the cultivated soil cultivated as shown in FIG. It is set to be thrown back.

The burner device B mounted on the upper surface of the rotary cover 20 of the rotary tiller R is kerosene or L.
Normally, from a fuel tank 30 for loading P gas, an oil filter 31 or a regulator, a fuel pipe 32, an igniter for igniting and burning the fuel supplied from it, a burner body 3 for storing a blower for delivering combustion air, and the like. However, the burner body 3 has a top surface of the rotary cover 20 so that the flame-releasing tube 33 for discharging the flame thereof faces the rear of the rear cover 26 connected to the rear edge of the rotary cover 20. It is installed near the rear end.

The burner main body 3 of the burner device B is mounted such that the tip of the flame extinguishing pipe 33 is arranged in multiple rows in parallel with the rotor shaft 24 of the rotary tiller R as shown in FIG. In order to correspond to the plowing width by the rotor claws 25 ..., the burner main bodies 3 may be arranged in parallel in the axial direction of the rotor shaft 24, but rather, the burner main bodies 3 are often arranged in parallel in such a manner.

The rear cover 26 of the rotary cover 20
The combustion chamber F installed on the rear side of the burner device B surrounds the periphery of the combustion gas discharged from the tip of the flame discharge tube 33 of the burner body 3 of the burner device B and keeps it at a high temperature for combustion. And the shielding plate 4 made of a refractory material,
It is formed into an inverted bowl shape, and its front end side is connected to the mounting portion of the rear cover 26 at the rear edge of the rotary cover 20 described above, and is integrally connected to the rotary cover 20, thereby closing the shield. The combustion chamber F is formed inside the plate 4.

Then, a through hole for fitting the tip of the flame extinguishing tube 33 provided in the burner body 3 of the burner device B to the top plate portion of the shielding plate 4 made of a refractory material forming the combustion chamber F. Is provided and the tip of the exhalation cylinder 33 is connected to the combustion chamber F.
The combustion gas, which is made to enter the inside and ejects as a flame from the tip of the cylinder, burns while maintaining a high temperature in the combustion chamber F.

Further, the shielding plate 4 made of a refractory material forming the combustion chamber F is slanted downward and rearward at a portion surrounding the rear side of the flame discharged from the tip of the flame outlet tube 33. A leveling sled plate 40 that lowers and evenly flattens the upper surface of the surface soil that is finely crushed and accumulated on the surface layer of the cultivated soil cultivated by the rotary tiller R on the lower end side thereof. It is formed on.

The shielding plate 4 forming the combustion chamber F may be formed by forming an ordinary iron plate and spraying a fireproof heat insulating material 41 such as asbestos on the inner surface side thereof.

As a result, the rotary tiller R advances while the tractor T moves forward, and when the rotor claws 25 are driven and rotated to cultivate the soil in the field to a predetermined tillage depth, the rotary tiller R rotates. The crushed soil that is sprung up by the rotating rotor claws 25 and moves below the lower edge of the rear cover 26 at the rear edge of the rotary cover 20 or lifts up the rear cover 26 and scatters backward to accumulate on the surface layer. , Combustion of the combustion gas blown into the combustion chamber F formed of the shielding plate 4 made of a refractory material surrounding the rear of the rear cover 26 and ejected as a flame from the flame exhalation tube 33 of the burner body 3 here. The heat and the high-temperature heat retained in the combustion chamber F thereby heat-treat it to a high temperature,
It is ensured that the seeds and regenerated roots of weeds contained in the soil and the pests and disease fungi are incinerated or treated at high temperature.

Next, FIG. 3 shows another embodiment. In this embodiment, a towed rotary tiller R, which is connected to and mounted on the rear part of the body of a tractor T via a three-point link hitch 1, is combined with a burner device B, and an exhalation tube 33 of a burner body 3 thereof. The flame discharged from the tip of the cylinder is blown into the combustion chamber F formed by the shielding plate 4 made of a refractory material installed behind the rotary cover 20 of the rotary tiller R to raise the temperature in the combustion chamber F to a high temperature. For holding and holding the crushed soil, which is crushed by the rotation of the rotor claws 25 ... And is fed through the rear cover 26 at the rear edge of the rotary cover 20, to a high temperature,
Although it is the same as the above-described embodiment, the rotation direction of the rotor shaft 24 is set to the clockwise direction in FIG. 3 contrary to the rotation direction of the above-described embodiment, and the blade-shaped rotor claws 25 ... As shown in FIG. 4, the rear cover 26 that is cut from the rear to the front of the soil surface of the rotary cover 20 and hangs down from the rear edge of the rotary cover 20 has a plurality of rigid tooth rods 260. Are formed in a rake shape in which comb teeth are arranged side by side, and the rotor claw 25 is rotated in the rotary cover 20.
The soil crushed by the rotor claws 25 that rotate from above along the inner surface of the rake-shaped rear cover 26,
This is an example in which the rear cover 26 flows into the combustion chamber F behind the rotary cover 20 through the gap between the toothed rods 260 ...

In this embodiment, of the cultivated soil cultivated by the rotation of the rotor claw 25, the crushed soil is finely crushed and follows the rotor claw 25 so that the rotary cover 20 is entangled with the inner surface of the rotary cover 20. The crushed soil that has swung backwards along the front side of the rear cover 26
Inside the combustion chamber F of the burner device B, which is formed by the shielding plate 4 made of a heat-resistant material behind the rear cover 26 while being pushed into the gap between the toothed rods 260 ... It is sent as a fluid state to the cultivated soil that is coarsely crushed and accumulated in the lower layer, and then gradually settles down and accumulates as surface soil.
The heat of the flame blown into the combustion chamber F from the tip of the flame discharge tube 33 of the burner body 3 of the burner device B and the heat in the combustion chamber F which is kept at a high temperature by the burner device B are processed at a high temperature.

[0021]

As described above, in the flame weeder A according to the present invention, the burner device B formed by the shield plate 4 made of a refractory material is provided behind the rear cover 26 of the rotary cover 20 of the rotary tiller R. With the chamber F installed, the finely crushed crushed soil cultivated by the rotor claws 25 of the rotary tiller R and delivered to the rear of the rear cover 26 is fed into the combustion chamber F in a fluidized state. The high temperature heat accumulated in the combustion chamber F by the flame blown from the tip of the exhalation tube 33 of the burner body 3 gradually cools down while being processed at high temperature, coarsely crushes and deposits on the lower layer first. Since it will be deposited as surface soil on top of the cultivated soil, the incineration or high temperature treatment of weed seeds and regenerated roots mixed in the soil can be performed extremely accurately. Made to be.

Moreover, since the seeds of the weeds and the regenerated roots in the soil are efficiently incinerated by utilizing the flow of the soil during the tilling work by the rotary tiller R, weeding by the flame is performed. Work can be done at the same time as plowing work.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a flame weeder according to the present invention.

FIG. 2 is a plan view of the above flame weeding device.

FIG. 3 is a partially cutaway side view of another embodiment of the above flame weeding device.

FIG. 4 is a perspective view of a rear cover of the same apparatus.

[Explanation of symbols]

A ... Flame weeding device, B ... Burner device, F ... Combustion chamber, R
... Rotary tiller, T ... Tractor, 1 ... Three-point link hitch, 10 ... PTO shaft, 11 ... Universal joint shaft, 12 ... Top link bracket, 13 ... Lower link bracket, 14 ... Top link, 15 ... Lower link, 16 … Lifting arm, 17… Connecting link, 20…
Rotary cover, 20a ... top plate, 20b ... side wall,
21 ... Input shaft, 22 ... Gear box, 23 ... Chain case, 24 ... Rotor shaft, 25 ... Rotor claw, 26 ... Rear cover, 260 ... Tooth bar, 3 ... Burner body, 30 ... Fuel tank, 31 ... Oil filter, 32 … Fuel pipes,
33 ... Flame tube, 4 ... Shielding plate, 40 ... Leveling sled plate, 41 ...
Fireproof insulation.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01M 21/04 A01M 15/00

Claims (2)

(57) [Claims] 1. A self-propelled vehicle or tractor T
The lower edge of the rear half of the arc-shaped top plate portion 20a of the rotary cover 20 that surrounds the upper half of the rotation path of the rotor claw 25 of the rotary tiller R mounted on the vehicle body is made of a flexible material. A burner which is formed in the rear cover 26, and on the upper surface side of the rotary cover 20, a fuel tank 30 for loading kerosene or LP gas, an ignition device for igniting and burning the fuel supplied from it, and a blower for feeding combustion air are stored. The burner device B including the main body 3 and the flame discharge tube 33 that discharges the flame thereof is mounted and mounted so that the flame discharge tube 33 that discharges the flame of the burner body 3 faces the rear of the rear cover 26. Behind the rotary cover 20, a shielding plate 4 made of a refractory material is formed and arranged in an inverted bowl shape, and its front end side is arranged on the rotary cover 20.
The inside of the shielding plate 4 is formed in the combustion chamber F, and the tip of the flame discharge tube 33 provided in the burner body 3 is provided in the top plate portion 20a of the shielding plate 4 through a through hole. Through the shield plate 4 into the combustion chamber F, and the flame ejected from the exhalation cylinder 33 keeps the combustion chamber F at a high temperature. The cultivated soil flowing from the inside of the cover 20 through the rear cover 26 into the combustion chamber F is treated at high temperature, and the rear edge side of the shielding plate 4 is slanted downward and rearward to the lower end side thereof. A flame weeding device in which a flat sled plate 40 is formed on the surface. 2. A rotor shaft 24 of a rotary tiller R.
The rotation direction of the rotor cover 25 is set so that the rotor claw 25 cuts from the rear side to the front side with respect to the soil surface of the field.
At the rear edge of the arc-shaped top plate portion 20a of 0, a rear cover 26 having a large number of rigid tooth rods 260 ... The finely crushed soil in the rotary cover 20 is passed by the rotor pawls 25 which are rotated from above along the inner surface of the rear cover 26, through the gaps between the tooth rods 260 ... The flame weeding apparatus according to claim 1, wherein the flame weeding apparatus is made to flow into the combustion chamber F and is subjected to high temperature treatment in the combustion chamber F.