JPS61119103A - Self-running soil conditioning work machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

The present invention aims to swell and soften the soil (deep plowing) by blowing compressed air vigorously into the deep layer of the soil, causing cracks in the cultivated soil by this jet flow, and supplying air into the soil. This invention relates to a self-propelled tilled soil improvement machine that tills and crushes the surface portion of tilled soil that has been deepened by a jet stream.

[Conventional technology]

As this type of self-propelled soil improvement machine, a rotary tilling device is installed at the rear of the tractor, a subsoiling crushing blade is vertically installed behind the rotary tilling device, and the lower end of the subsoiling crushing blade is attached to the rear of the subsoil crushing blade. An exhaust port is provided in the blade body, and a communication port is provided at the upper end of the blade body to communicate with the exhaust port, and compressed air is supplied from a compressor to this communication port. Japanese Patent Laid-Open No. 56-785 discloses an agricultural machine that plows the deep layer of cultivated soil with a subsoil crushing blade and further promotes the depth of 11 by using a jet of compressed air.
This method is proposed in Japanese Patent No. 01.

[Problem to be Solved by the Invention 1] In the above agricultural machine, the deep layer of the cultivated soil whose surface layer has been tilled to a predetermined depth by the rotary tiller is crushed by the subsoil crushing blade, and compressed air is ejected. Therefore, the compressed air that is ejected promotes deep plowing, but at the same time, there is a problem that the ejected fumarole blows the surface layer of cultivated soil upwards and roughens the topsoil. Ta. In addition, since streak-like traces are left in the cultivated soil in the surface layer due to the progress of the subsoil crushing blade, there is also the drawback that these must be leveled. [Means for Solving the Problems] The present invention was proposed with the aim of solving the above-mentioned problems. By blowing compressed air from the provided air fumes and plowing and crushing the surface layer of the piled soil after deep plowing, blow-through of the jet stream can be prevented, and the surface layer can be tilled and crushed with less power. Another object of the present invention is to provide a self-propelled tillage soil improvement work machine that can even out the passage marks of the fumarole struts. For this purpose, self-propelled cultivated soil improvement 1 according to the present invention
The work equipment is equipped with a self-propelled vehicle, a fumarole column that is attached to and towed by the vehicle, and moves vertically into the soil, and a fumarole column that is attached to the lower end of the column so as to face forward and backward, and has a fumarole hole. and a compressed air supply source that is connected to the fumarole via an air supply passage provided along the support and is installed above ground, at least the fumarole of the air ejector. The present invention is characterized in that a working device is provided at the rear of the hole for tilling and crushing the surface layer of the cultivated soil that has been deeply plowed by the air blast from the fumarole.

【Example】

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a well-known horse-riding type 1 tractor (self-propelled vehicle), and the rear of the tractor 1 has one top link 2 and two left and right lower links 3. A tilled soil improvement work machine 5 according to the present invention is mounted via a three-point linkage mechanism 4 so as to be able to move up and down. The tillage improvement work machine 5 is provided with a top mast 7 connected to the top link 2 on a hollow main frame 6 extending in the left-right direction, and a top mast 7 connected to the lower link 3 is attached to the lower end of the top mast 7. At the rear of the main frame G at the rear position of the top mast 7, a mounting base 9 is provided that extends rearward. 10, a pressure machine 11, and a main tank 12 are installed in the front and rear.The input shaft 10a of the gear box 10 is projected forward, and the PTO shaft 1 of the tractor 1 is connected to this input shaft 10a.
Power is transmitted through a power transmission system 13 consisting of a universal joint and a propeller shaft, and a transmission shaft 14 projects rearward from the gear box 10 to drive the compressor 11. The compressed air compressed by the compressor 11 is stored in the main tank 12 via the communication vibrator 15, and although not shown here, the compressor 11 and the main tank 12 are equipped with a pressure meter and a pressure meter in the main tank 12. A safety valve, an unloader, etc. are provided to control the compressed air inside so that it does not exceed a predetermined pressure. In addition, these compression 1fi11 and the main tank 12 may be provided on the tractor 1 side. A pair of fume struts 17 are attached to the main body frame 6, which hang downward through side frames 16 and 16 provided at both left and right ends of the body frame 6.
An air jet 18 is attached to the lower end of 7. The fume strut 11 is slightly inclined so that its lower end is located slightly forward of the base side of the upper part when viewed from the side, and a blade edge 17a is formed at the front edge thereof. Further, an air supply pipe 19 is attached to the back of the fumarole strut 11. The air fume 18 is fixed to the lower end of the fume strut 17, and has a pointed tip end shaped like an arrowhead, and a narrow diameter portion is formed behind the tip end.
A blowhole 20 is opened upward in this narrow diameter portion, and the air supply pipe 19 is communicated with the air hole 20 . In addition,
The fumarole 20 may open sideways (horizontally) or downward at its narrow diameter portion. The upper end of the air supply pipe 19 is communicated via a solenoid valve 21 with sub-tanks 22 provided on both sides of the base of the jet strut 17. The solenoid valve 21 has compression 1!
The valve 21 is opened and closed by a switch mechanism (not shown) in a switch box 21a provided at the rear of the valve 11, and the opening and closing timing of this valve 21 can be adjusted as appropriate. Further, the main tank 12 and the sub-tank 22 are communicated with each other by a communication pipe 23, so that when the solenoid valve 21 is opened and the compressed air stored in the sub-tank 22 is ejected from the blowhole 20, the main tank 12 and the sub-tank 22 are communicated with each other. Compressed air is filled and pressure-accumulated from the tank 12 into the sub-tank 22 via a communication pipe 23. A rotary tilling soil crushing device (work equipment WI) according to the present invention is located behind the fumarole column 17 and the air fumarole 18.
24 are arranged. This rotary tilling soil crushing device 12
4 extends from both sides of the gear box 10 to the left and right, and connects the chain case 26 and the upper end of the side frame 27 to the side end of a hollow transmission support frame 25.25 whose tip end is supported by the side frame 16. The part is rotatably supported. The chain case 2G and the side frame 27 extend rearward and obliquely downward, and between their lower ends support a rotating shaft 28, and a large number of tilled soil claws 29 are arranged around the periphery of the rotating shaft 2B. I am wearing it. Power is then transmitted to the rotating shaft 28 via the gear box 10, the transmission support frame 25, and the chain case 26. The upper part of the group of 114 earth crushing claws 29 is covered with a shield cover 30, and an apron 31 is pivotally supported at the rear end of the shield cover 30. A pair of left and right support rods 32 are provided rearwardly protruding from the shield cover 30, and the support rods 32 have an upper end inserted into the mounting base 9 and a lower end pivoted to the upper surface of the apron 31. The middle part of the adjustment rod 33 is pivotally connected, and the entire rotary tilling and soil crushing device 24 is moved up and down around the power transmission support frame 25 by adjustment screws 33a and 33a provided on the tillage depth adjustment rod 33, and its tillage depth is adjusted. It looks like this. Note that a side frame 1 is provided on the front side of the blower column 17.
A gauge wheel 34 is supported via a support arm 16a extending forward from G, and this mainly adjusts the depth of penetration of the blast strut 17 and the air blast body 18 into the soil. Next, the operation of the above embodiment will be explained.
1. The Kasuri soil improvement work machine 5 is attached to the rear of the tractor 1 via a three-point link hitch mechanism 4, and is attached to the tractor's PTO.
Rotational power is transmitted from the shaft 1 a to the input shaft 10 a of the gear box 10 via the power transmission system 13 to drive the compressor 11 and the rotary tilling and crushing device 24 . As it advances, the fumarole struts 11 and the air fumes 18 are plunged into the ground to approximately a predetermined depth, and the group of tilled soil claws 29 are rotated to a predetermined depth from the surface layer of the tilled soil and are pulled by the tractor 1. Then, the fumarole column 11 advances while cutting the soil left and right, the air fumarole 18 advances horizontally in the deep layer of the cultivated soil, and the tillage and crushing soil equipment M24 moves forward while cutting the soil left and right.
7. Till and crush the surface layer of the cultivated soil in the rear. During this process, the switch in the switch box 21a is operated at predetermined timing intervals to open the solenoid valve 21, and when the solenoid valve 21 is opened at the predetermined timing intervals, the compressed air stored in the sub-tank 22 is Air is vigorously blown upward from the blowhole 20 through the air supply pipe 19. This ejection of compressed air causes a crack (crack area C) in the deep soil above the fumarole 20, as shown in Figure 1, and as it progresses, the fumes of compressed air are emitted at predetermined timing intervals. By performing these steps in sequence, crack regions C are continuously formed and the cultivated soil is expanded and softened. After this swelling and softening, the surface layer of the cultivated soil is tilled and crushed by the rotary tillage and crushing device 24, so that the fumarole that formed the crack area C does not blow up the cultivated soil in the surface layer. 24 is cultivated soil surface with some cracks! Since only one part of the soil is tilled and crushed, the required power is small, and furthermore, the traces of the passage of the fumarole column 11 are leveled and disappear at the same time as the work on the tilling frame is carried out. In the above embodiment, the air from the left and right blowholes 20.20 may be emitted at the same time, but they may be emitted alternately, or the hollow interior of the main body frame 6 may be used as a sub-tank. You may. Furthermore, the fume struts 17 and the air fume bodies 18 are not limited to two as shown in the figure, but may be more than two, and the valves 21
The opening/closing means may be replaced with another known mechanism and the valve may be opened/closed automatically or manually. Furthermore, the rotary tilling and soil crushing device 24 may be configured with other types of working devices. Effects of the Invention 1 As is clear from the above explanation, according to the self-propelled tillage improvement method of the present invention, a small amount of air fumarole (both at a depth of M1 Since we installed a work device that tills and crushes the surface layer of the cultivated soil after the soil has been tilled, the deep plowing action by the fumarole from the fumarole is performed on the cultivated soil that has not yet been tilled and crushed. There is little blow-through of compressed air, and deep plowing is carried out effectively.Also, since the surface layer of the tilled soil is tilled and crushed after being deeply plowed,
°It requires less power. Furthermore, since the traces of the fumarole struts are leveled and eliminated by tilling and leveling the land using the working device, for example, transplanting or sowing operations can be carried out in that state.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG. 2 is a rear view of a portion of the tillage improving work machine. DESCRIPTION OF SYMBOLS 1... Tractor, 1a... PTO axis, 2... Top link, 3... Lower link, 4... Three-point link hitch mechanism, 5... Cultivated soil improvement work machine, 6... Main body Frame, 1... Top mast, 8... Lower link bin, 9... Mounting stand, 10... Gear box, 10a.
...Input shaft, 11...Compressor, 12...Main tank, 13...Power transmission system, 14...Transmission shaft, 15,
23...Communication pipe, 16...Side frame, 1
6a... Support arm, 17... Fumarole strut, 17a-
...Blade edge, 18...Air jet, 19...Air supply pipe,
20... Fumarole, 21... Solenoid valve, 21
a...Switch box, 22...Sub tank, 2
4...Rotary tillage crushed soil e, M125...Transmission support frame, 2G...Chain case, 27...Side frame,
28...Rotating shaft, 29...Tilling and crushing claws, 30...
Shield cover, 31... Apron, 32... Support rod, 33... Plowing depth adjustment rod, 33a... Adjustment screw, 34... Gauge wheel, C... Crack.

Claims (1)

[Claims] A fumarole strut attached to a self-propelled vehicle and towed by the vehicle to advance vertically through the soil, and an air jet body attached to the lower end of the fume strut in a longitudinal direction and having a fumarole hole. and a compressed air supply source installed above the ground and communicating with the fumarole via an air supply passage provided along the pillar, wherein the air fumarole is located at least at the rear of the fumarole. 1. A self-propelled tilled soil improvement working machine, characterized in that it is provided with a working device that is located at the top of the soil and tills and crushes the surface layer of the tilled soil that has been deeply tilled by the air blast from the fumarole.