JP2002176898A - Machine for soil disinfection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine for soil disinfection having a hardly breakable proportionality relation between the traction speed of a traction vehicle and the ground rolling speed of pump driving wheels by the traction of the traction vehicle. SOLUTION: The pump driving wheels 2 and 2 are arranged so as to pass through passage positions P and P of wheels W and W of the traction vehicle C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a soil disinfection machine.

[0002]

2. Description of the Related Art As a soil disinfecting machine, a nozzle for injecting a chemical into the soil while being pulled by a towing vehicle, a chemical injection pump for pumping a chemical to the chemical injecting nozzle, and a ground contact rolling by towing of the towing vehicle. There is known a pump provided with a pump driving wheel for driving the chemical liquid injection pump.

In the above-described soil disinfecting machine, the chemical injection pump is driven by the rolling of the pump driving wheels (so-called ground PTO driving), so that the towing speed of the towing vehicle and the pump driving As long as the contact rolling speed of the wheel is in proportion to the contact speed, the chemical solution is uniformly injected into the soil.

[0004]

However, since the surface of the soil has irregularities and differences in hardness and softness, the pump driving wheel slips, and the towing speed of the towing vehicle and the pump driving In some cases, the proportional relationship between the wheel and the ground contact rolling speed is lost, and the injection of the chemical solution into the soil becomes non-uniform.

[0005] The present invention has been made in view of the above circumstances, and is directed to a soil disinfecting machine in which the proportional relationship between the towing speed of the towing vehicle and the grounding rolling speed of the pump drive wheel caused by the towing of the towing vehicle is not easily lost. It is something to offer.

[0006]

To solve the above-mentioned problems, a soil disinfecting machine according to the present invention comprises a nozzle for injecting a chemical solution into soil while being towed by a towing vehicle, and a pump for feeding the chemical solution to the chemical solution injection nozzle. And a pump drive wheel for driving the chemical injection pump by grounding rolling caused by towing of the towing vehicle, wherein the pump driving wheel is a wheel of the towing vehicle. (Claim 1).

When the towing vehicle advances, the chemical injection pump is driven by the rolling of the pump drive wheels due to the towing of the towing vehicle, and the chemical is injected into the soil from the chemical injection nozzle. And in this invention, since the said pump drive wheel passes through the passing position of the wheel of the said towing vehicle, the surface of the soil leveled by the wheel of the said towing vehicle rolls on the ground. Therefore, since the pump drive wheels are less likely to slip, the proportional relationship between the towing speed of the towing vehicle and the contact rolling speed of the pump drive wheels is less likely to be lost, and the chemical solution can be uniformly injected into the soil. Will be

According to a preferred embodiment of the present invention, the mounting position of the pump driving wheel with respect to the axle can be adjusted (claim 2). With this configuration, even when the soil disinfecting machine is used by replacing it with another towing vehicle having a different wheelbase, the pump drive wheel can be always positioned so as to correspond to the passing position of the towing vehicle wheel. It is possible and suitable.

In another embodiment of the present invention, the chemical liquid injection nozzle is a chemical liquid injection blade nozzle which is pulled by the towing vehicle in a state where the chemical liquid injection nozzle is rushed into soil, and the chemical liquid injection blade nozzle is The vehicle may be arranged so as to pass through a position deviating from the wheel passing position of the towing vehicle (claim 3).

[0010] In this case, the chemical injection blade is towed by the towing vehicle in a state of protruding into the soil, but is towed away from a position where the nozzle of the towing vehicle is compacted. Therefore, the towing resistance is smaller than when the vehicle is towed through the wheel passing position of the towing vehicle. Therefore, soil disinfection work can be performed efficiently with a small traction force, and the life of the chemical injection blade is prolonged.

[0011]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of a soil sterilizer according to one embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II-II of FIG.

The soil disinfecting machine 1 according to the present embodiment has a body 3 having a pair of right and left grounding wheels 2 and 2, and a plurality of chemical injection blades 4, 4,... Attached to the body 3.
, And a chemical liquid that is provided corresponding to each of the plurality of chemical liquid injection blade nozzles 4, 4,. , And a pair of left and right chemical liquid cans 6, 6 mounted on the body 3 as a chemical liquid source. When the airframe 3 is towed by a towing vehicle C such as a tractor at a low speed, the vehicle body 3 is driven by the towing vehicle C according to the grounding rolling speed of the pair of left and right grounding wheels (pump driving wheels) 2, 2. . Are driven, and the chemical liquid L in the pair of left and right chemical liquid cans 6, 6 is injected into the soil S from the chemical liquid injection blade nozzles 4, 4,. Is done.

An upper arm 8 connected to an upper link 7 forming a three-point support device for the towing vehicle C, as a mounting portion to the towing vehicle C, is provided at a front portion of the body 3. C, a pair of left and right lower arms 1 connected to a pair of left and right lower links 9, 9 forming the three-point support device of FIG.
0 and 10 are provided.

Although not limited, the present embodiment employs a diaphragm pump as each of the chemical liquid injection pumps 5. Each of the chemical liquid injection pumps 5 is driven according to the ground rolling speed of the pair of left and right pump drive wheels 2, 2. That is, as shown in FIG. 1, the pair of left and right pump driving wheels 2, 2 are attached to left and right end portions 12, 12 of an axle 11 supported so as to be freely rotatable by the body 3. 13 and 13 are fixed. Then, as shown in FIG. 2, the eccentric cam 14 is rotated at a predetermined rotational speed via the axle 11 by the ground rolling of the pair of left and right pump driving wheels 2, 2, whereby each of the chemical liquids is rotated. The injection pump 5 is driven. The chemical L in the chemical can 6
Is inhaled intermittently by the operation of each of the chemical liquid injection pumps 5, and is passed through pipes 15 and 16, and passes through a chemical liquid outflow visualizer 17 formed of a transparent pipe supported by the body 3, and passes through the soil S. Are fed toward the respective chemical liquid injection blade nozzles 4 which have entered the nozzles.

As is clearly shown in FIG. 1, the pair of left and right pump drive wheels 2, 2 are arranged so as to pass through a passing position P of a wheel W of the towing vehicle C. Therefore, the pair of left and right pump driving wheels 2 and 2 are compacted by the pair of left and right towing vehicle wheels W and W, and the surface of the leveled soil S rolls on the ground. Therefore, since the pump drive wheels 2 and 2 are less likely to slip, the towing speed of the towing vehicle C, the contact rolling speed of the pump drive wheels 2 and 2,
Is less likely to collapse, and the chemical solution is always uniformly injected into the soil S.

Further, in the present embodiment, the mounting positions of the pair of left and right pump driving wheels 2, 2 with respect to the axle 11 are adjustable. In this way, even when the soil disinfecting machine 1 is used by replacing it with another towing vehicle having a different wheeling distance, the pump driving wheels 2,
2 can always be positioned so as to correspond to the wheel passing position P of the towing vehicle, which is preferable.

More specifically, a plurality of wheel fixing pin insertion holes 1 for adjusting the wheel span are arranged on the left and right ends 12, 12 of the axle 11 along the length direction of the axle 11.
8, 18 are formed respectively. The boss portions 19, 19 of the pair of left and right pump driving wheels 2, 2 are also provided.
Further, a single wheel fixing pin insertion hole 20, 20 is formed. Therefore, by selecting which of the plurality of axle-side wheel fixing pin insertion holes 18, 18 the idler wheel-side wheel fixing pin insertion hole 20 is inserted, the wheel fixing pin 13 is inserted. Left and right pair of pump drive wheels 2, 2
Can be adjusted freely.

Next, the plurality of chemical liquid injection blade nozzles 4,
4 will be described. As shown in FIG. 2, in the present embodiment, each of the chemical solution injection blade nozzles 4, 4,.
A chemical injection blade 21 which is made to enter the soil obliquely downward toward the front of the machine body 3;
A nozzle tube 23 fixed along the back surface of the nozzle and having a downward or rearward facing chemical solution ejection port 22 at the lower end thereof;
Is formed from. Each of the chemical solution injection blade nozzles 4, 4,
Are towed by the towing vehicle C while being rushed into the soil.

The soil disinfecting machine 1 according to the present embodiment comprises:
As an example, it is a five-way injection type. That is, FIG.
As shown in (1), the soil disinfecting machine 1 is provided with five chemical liquid injection blade nozzles 4 so that five chemical liquids can be injected at a time. Each of the chemical injection blade nozzles 4, 4,...
Are arranged at equal intervals and symmetrically about a single chemical injection blade 4 disposed at the center of the machine body 3 in the left-right width direction.

The rod-shaped injection blade support frame 24 forming the machine body 3 extends in the left-right direction of the machine body 3, and the injection blade support frame 24 is spaced apart from each other by a predetermined regular interval. Five injection blade mounting arms 25 corresponding to the number of chemical injection blade nozzles 4 are fixed. Then, as shown in FIG. 2, the upper end of each chemical solution injection blade 21 is attached to each injection blade mounting arm 25. The arrangement interval of the injection blade mounting arm 25 with respect to the injection blade support frame 24, that is, the arrangement interval of the chemical solution injection blade nozzle 4 with respect to the machine body 3 can be freely adjusted as necessary.
For example, 3
It is set to 00 mm.

As clearly shown in FIG. 1, in the present embodiment, each of the chemical liquid injection blade nozzles 4 is arranged so as to pass through a position of the towing vehicle C which deviates from the passing position P of the wheel W. I have. For this reason, each of the chemical solution injection blade nozzles 4 is towed away from the position P squeezed by the wheel W, so that it is arranged to pass through the passing position P of the wheel W. Therefore, the traction resistance is reduced. Therefore, the soil disinfection operation can be performed reliably and efficiently with a small traction force, and the respective chemical solution injection blade nozzles 4 pass through relatively soft portions, so that the life thereof is prolonged, which is preferable.

The grooves formed on the soil surface by the passage of the respective chemical injection blades 4 and the ruts formed on the soil surface by the rolling of the wheels W of the towing vehicle C and the pump driving wheels 2, 2 are as follows: As shown in FIG. 2, the air is gradually erased by a pressure-reducing plate 27 with a weight 26 to be pulled by the towing vehicle C via the airframe 3. As shown in FIG. 1, a suitable connecting member such as a chain 29 is attached to the rear ends of a pair of left and right pressure-reducing plate mounting arms 28, 28 extending rearward from the body 3 as shown in FIG. Are connected via

[Brief description of the drawings]

FIG. 1 is a plan view of a soil sterilizer according to one embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

[Explanation of symbols]

 2 Pump drive wheel 4 Chemical injection nozzle (chemical injection blade nozzle) 5 Chemical injection pump 11 Axle C Towing vehicle L Chemical solution P Passing position of wheel of towing vehicle S Soil W Wheel of towing vehicle

Continuing from the front page (72) Inventor Koichi Takeda 1-7-2 Suehirocho, Ome-shi, Tokyo F-term (reference) 2B121 CB14 CB24 CB32 CB42 CB47 CB66 EA25 FA11

Claims (3)

[Claims] 1. A nozzle (4) for injecting a chemical (L) into soil (S) while being towed by a towing vehicle (C), and a chemical for pumping the chemical (L) to the chemical injection nozzle (4). A soil disinfection machine comprising: an injection pump (5); and pump drive wheels (2, 2) for driving the chemical solution injection pump (5) by grounding rolling caused by towing of the towing vehicle (C). A soil disinfecting machine, wherein the pump drive wheels (2, 2) are arranged so as to pass through the passing positions (P, P) of the wheels (W, W) of the towing vehicle (C). 2. The axle (1) of the pump drive wheels (2, 2).
The soil disinfection machine according to claim 1, wherein the mounting position with respect to (1) is adjustable. 3. The chemical injection blade nozzle (4) towed by the towing vehicle (C) in a state where the chemical injection nozzle protrudes into the soil (S), and the chemical injection blade (4). 4), the wheel passing position (P,
The soil sterilizer according to claim 1 or 2, wherein the soil sterilizer is arranged so as to pass through a position deviating from P).