JPH047162B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention is a self-propelled type that easily performs deep plowing by causing cracks in the soil by forcefully jetting compressed air into the deep layer of the soil at predetermined intervals while towing and moving the soil improvement work machine by a self-propelled vehicle. This relates to a pneumatic soil improving machine.

[Conventional technology]

This kind of self-propelled pneumatic soil improvement machine is used as a soil improvement work machine, for example, as disclosed in Japanese Patent Application Laid-open No. 59-42801, a cylindrical conduit is installed at the rear of a plate-like frame extending in the front and rear direction. At the top of this conduit, an auxiliary tank (sub-tank) that temporarily stores the compressed air sent from the pressure accumulation tank (main tank) is attached, and at the bottom of the vertical blade body, a Some are equipped with a mouth so that the compressed air in the pressure storage tank is intermittently blown out into the soil from the fumarole via an auxiliary tank.

[Problems to be solved by the invention]

In the above-mentioned conventional soil improving machine (soil crushing and expanding device), fumarole struts (vertical blades) with fumaroles (fumaroles) at the bottom are installed in multiple rows in the width direction of the fuselage, and It cannot be installed close to either side, and the compressed air from the fumarole is ejected at predetermined intervals in the direction of movement of the aircraft.
Moreover, it is only performed in predetermined amounts. However,
Fields where fumarole work is performed vary in field conditions, such as the hardness and softness of the soil and the planting density of plants, and if only a certain amount of fume action is used, the number of back and forth operations will increase, resulting in poor efficiency, and the use of self-propelled vehicles and soil improvement There are disadvantages in that it is not possible to deeply plow near obstacles (for example, ridges) that impede the progress of the working machine, or that the desired deep plowing cannot be achieved sufficiently and efficiently. In addition, since the sub-tank (auxiliary tank) is fixed on the conduit, even if the blower struts with sub-tanks were simply arranged in multiple rows on the fuselage, the structure would become complicated and large, and the fuselage would become larger. There were also problems that made it easy to lose balance.

[Means to solve the problem]

Therefore, in order to solve the above-mentioned conventional problems, the present invention equips a self-propelled vehicle with a soil improvement work machine that can be raised and lowered, and the soil improvement work machine includes a compressor and a compressor compressed by the compressor. It is equipped with a main tank that stores air, a sub-tank that stores compressed air that is sent from the main tank and used for one fume, and a fumarole at the lower end that blows the compressed air supplied by this sub-tank into the soil. The sub-tank is formed by making the horizontal frame in the width direction of the fuselage hollow and partitioning it into a plurality of parts, and each sub-tank has a removable fume-support strut, and a small number of parts from the plurality of sub-tanks. Both systems are characterized in that one or more sub-tanks are selected and a fume strut is disposed thereon.

[Effect]

By having such a configuration, the soil improvement machine of the present invention can be equipped with multiple fumarole struts with a fumarole at the lower end in the width direction of the machine body, depending on the field conditions. It can be installed close to either the left or right side for work, allowing the desired deep plowing work to be carried out sufficiently and efficiently.The sub-tank is formed by the horizontal frame of the machine, and multiple fumarole struts are arranged from the beginning of the head. Even if it is equipped on the aircraft, it will not upset the balance of the soil improvement aircraft.

【Example】

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 designates a well-known riding tractor (self-propelled vehicle), and the rear of this tractor 1 includes a top link 2 and a pair of left and right lower links 3.
A three-point link hitch mechanism 4 consisting of
A soil improving work device 5 is mounted via this three-point link hitch mechanism 4 so as to be able to move up and down. As shown in FIGS. 2 and 3, the soil improvement work machine 5 has a top mast 7 connected to the top link 2 and a pair of left and right lower links connected to the lower link 3 at the front of a main frame 6. A connecting pin 3a is provided, and it is connected to the tractor 1 by a three-point link hitch mechanism 4 so as to be movable up and down. A compressor 8 with an input shaft 8a protruding forward is mounted on the main frame 6, and a main tank 9 is provided on one side of the compressor 8 and communicates with the compressor 8 via a communication pipe 9a. ing. Furthermore, plowing depth adjustment wheels 10 are attached to both left and right sides of the main frame 6 so as to be vertically adjustable. Power is transmitted to the input shaft 8a from the PTO shaft 1a of the tractor 1 via an extendable propeller shaft 11. A sub-tank 12 that also serves as a horizontal frame is fixed to the rear end of the main frame 6. This sub-tank 12 has three sub-tanks arranged in a row by partitioning a hollow horizontal frame with both sides sealed with partitions 13, 13, and a circular opening 14 at the rear of each sub-tank 12. are provided, and these openings 14 are closed to the lid 15 when not in use.
When used, a mounting seat 16 shown in FIG. 4 is attached using bolts and nuts 17. This mounting seat 16 is equipped with a 3-port solenoid valve 18 and a fume strut mounting plate 19.
is installed. The solenoid valve 18 has a first port 20 connected to the main tank 9 via a communication pipe 18a, a second port 21 connected to the sub tank 12, and a third port 22 connected to an air supply pipe 29, which will be described later. It has a valve body 23 for switching. The valve body 23 is rotatably supported by the other end of a swing arm 24 whose one end is pivotally supported at the rear end of the sub-tank 12, and is supported by lugs 25a, 2 at predetermined intervals in the circumferential direction.
The main tank 9, the sub-tank 12, and the sub-tank 12 are switched by a micro switch 26 facing a gauge wheel 25 having projections and turning on and off by approaching and separating from the projections.
and the air supply pipe 29 are alternately switched to communicate with each other. This micro switch 26
is, for example, a normally closed type, which connects the sub-tank 12 and the air supply pipe 29 when it is on, and connects the main tank 9 and the sub-tank 12 when it is off. In addition, from the main tank 9 to the solenoid valve 1
The communication pipes 18a to 8 are connected via a branch joint in the middle of the communication pipe extending from the main tank 9, and connect the end of one communication pipe to the middle of the sub-tank 12 on the left side and the center in FIG. The ends of the two communication pipes are placed along the middle of the center and right side sub-tanks 12, and one-touch couplers are connected to each end of the two main tank side communication pipes and the communication pipe extending from the solenoid valve 18. Installation: The one-touch coupler at the end of the main tank side communication pipe has an automatic open/close valve mechanism that automatically opens when the one-touch coupler at the end of the solenoid valve side communication pipe is connected and automatically closes when disconnected. It is set up. A fume strut 28 is attached to the fume strut mounting plate 19 with a set bolt 27.
8 has a blade edge 28a on the front edge, an air supply pipe 29 is attached along the rear edge, and a fume gas 30 is provided on the lower end. The fumarole 30 includes a base 30a fixed to the lower end of the fumarole strut 28 and protruding forward, a narrow diameter portion 30b formed on the front side of the base 30a, and a sharpened portion provided on the front side of the narrow diameter portion 30b. 30c, and a fume port 30d that opens upward in the narrow diameter portion 30b. A stand 31 that is vertically adjustable is provided on both left and right sides of the rear part of the sub-tank 12. Next, the operation of the above embodiment will be explained. The soil improvement work machine 5 is attached to the rear of the tractor 1 via a three-point link hitch mechanism 4, and receives power from the PTO shaft 1a of the tractor 1 via the propeller shaft 11 to the input shaft 8a of the compressor 8. The sub-tank 12 is equipped with a required number of blower struts 28, solenoid valves 18, etc. according to field conditions, and unused ones are covered with a lid 15.
Then, as shown in FIG. 1, the blow column 28 is plunged into the soil of the field to the depth set by the plowing depth adjustment wheels 10, 10, and the soil is removed by the tractor 1 with the gauge wheel 25 in contact with the field. Improved work machine 5
Tow and move forward. This forward movement causes the gauge wheel 25 to touch the ground and rotate, and its protrusion turns on and off the micro switch 26. On the other hand, the high pressure air compressed by the compressor 8 is accumulated in the main tank 9, and the micro switch 26
When the solenoid valve 18 is turned off, the valve body 23 of the solenoid valve 18 is turned off.
At the position shown by the solid line in the figure, the first port 20 and the second port 21 communicate with each other, and compressed air is accumulated in the sub tank 12 from the main tank 9. Furthermore, when the micro switch 26 is turned on, the valve body 23 is switched to the imaginary line position shown in FIG. It is forcefully ejected from the fumarole 30d of the fumarole 30 through the trachea 29, causing cracks in the soil in the deep layer and cultivating the soil deeply. At this time, the first port 20 is closed by the rotation of the valve body 23. By repeating such operations, the soil through which the fumarole column 28 and the fumarole 30 have passed is deeply plowed at predetermined intervals. In particular, in the above embodiment, three sub-tanks 12
Attach the blower struts 28, solenoid valves 23, etc. to the necessary ones, for example, selectively attach them to both the left and right sides, to either one of the left and right sides, or to the center, etc., to achieve the desired result. Deep plowing can be done along the rows. In addition, the plowing depth of the fumarole column 28 can be freely adjusted using the plowing depth adjustment wheel 10 that can be moved up and down, and when the work is not in progress, the soil improvement work device 5 is lifted up by the three-point hitch mechanism 4 and placed on the stand 31. , or remove the soil improvement work machine 5 from the three-point link hitch mechanism 4 and install the stand 31 and tillage depth adjustment wheel 1.
0 allows the fumarole 30 to be supported without being grounded. The communication pipe from the main tank 9 to the sub-tank 12 is connected, for example, by connecting the main tank 9 to each sub-tank 12 via a communication pipe having a two-port solenoid valve, and connecting the sub-tank 12 and the air supply pipe 29. A 2-port solenoid valve is installed between them, and both solenoid valves are switched by turning on and off the micro switch 26, and the pressure of compressed air is accumulated from the main tank 9 to the sub-tank 12, and the compressed air is transferred from the sub-tank 12 to the jet nozzle 30d. It may be configured such that the supply is performed alternately. In this case, the solenoid valve provided in the supply pipe from the main tank 9 of the sub-tank 12 that is not used is kept closed. With this configuration, the piping can be simplified compared to the illustrated embodiment.

【Effect of the invention】

As explained above, the present invention is such that a soil improvement work machine is mounted on a self-propelled vehicle so that it can be raised and lowered, and a fumarole strut with a fumarole provided at the lower end is oriented downwardly on the body frame of the soil improvement work machine. It is equipped with a long protruding piece of equipment, and the compressed air that is pressurized by the compressor and stored in the main tank is intermittently and forcefully blown out from the fume through the sub-tank, so it is possible to use the soil improvement work machine with a self-propelled vehicle. While being towed and moved, compressed air is used to create cracks in the deep layers of the soil.
Deep plowing of large fields can be done easily. In addition, in the body frame of the soil improvement work machine, a part of the horizontal frame extending horizontally in the width direction of the machine is removably equipped with at least one fumarole strut equipped with a fumarole. Depending on the situation, the fumarole struts can be installed in multiple rows in the width direction of the aircraft, or they can be installed in the center of the aircraft, or closer to either the left or right side of the aircraft, allowing for the desired deep plowing.
And it can be done efficiently. In addition to the above configuration, the horizontal frame of the fuselage frame is hollow, and is partitioned into multiple parts to form multiple sub-tanks, and these sub-tanks are removably equipped with blower struts. In addition to simplifying the structure and reducing weight, the fumarole struts can be selectively attached and detached, and the aircraft balance is achieved by considering the installation of multiple fumarole struts from the beginning. Even so, the weight of the sub-tank will not upset the balance of the aircraft,
It has the following effects.

[Brief explanation of drawings]

Figure 1 is a side view showing the main parts of the self-propelled pneumatic soil improvement machine, Figure 2 is a rear view of the soil improvement work machine in the self-propelled pneumatic soil improvement machine, and Figure 3 is a plan view of the same. FIG. 4 is an enlarged cross-sectional plan view of the main part. 1... Riding type tractor, 2... Totsuprinku,
3... Lower link, 4... Three-point link hitch mechanism, 5... Soil improvement work machine, 6... Main frame, 7... Top mast, 8... Compressor, 9...
Main tank, 10... Depth adjustment wheel, 11... Propeller shaft, 12... Sub tank, 13...
Partition, 14... Opening, 15... Lid, 16...
...Mounting seat, 17...Bolt/nut, 18...Solenoid valve, 19...Fume strut mounting plate, 20
...First port, 21 ...Second port, 22
... Third port, 23 ... Valve body, 24 ... Swing arm, 25 ... Gauge wheel, 26 ...
Micro switch, 27...Set bolt, 28
... Fumarole strut, 29... Air supply pipe, 30... Fumarole, 31... Stand.

Claims (1)

[Claims] 1. A soil improvement work machine is mounted on a self-propelled vehicle so that it can be raised and lowered, and the soil improvement work machine includes a compressor, a main tank that stores compressed air pressurized by the compressor, and air that is distributed from the main tank. , consists of a sub-tank that stores compressed air used for one fumarole, and a fumarole column equipped with a fumarole at the lower end that blows the compressed air supplied from this sub-tank into the soil, and the sub-tank is arranged in the width direction of the fuselage. The horizontal frame is hollow and partitioned into a plurality of parts, and each sub-tank is provided with the above-mentioned fume strut which is removable, and at least one sub-tank is selected from the plurality of sub-tanks, and the fume-gas strut is attached to the sub-tank. A self-propelled pneumatic soil improving machine characterized by having a structure in which supports are arranged.