JPS6138981Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a subsoil crusher that removes straw, weeds, etc. scattered in front of the track column passing position to the side, and increases traction resistance due to these getting entangled with the track column. It is designed to prevent this.

In wet rice fields, etc., in order to improve drainage and convert them into dry fields, a subsoiler or other subsoiling crusher is used, and a forming bullet is connected to the plow metal, thereby creating drainage culverts in the soil. Excavation may be required, and this excavation is usually done after harvest. However, when harvesting is carried out using a combine harvester, a large amount of waste straw is scattered around the field, and if left untreated, these straws will become entangled with the subsoil crusher's tracks, significantly increasing traction resistance. The result is Therefore, in such cases, a method is adopted in which a disc coulter is placed in front of the position where the track posts pass, and the disc coulter cuts roots, straw, etc. above the position where the track posts pass. This disc coulter alone was not able to cut straw etc. sufficiently. Particularly in the case of wet paddy fields, when the disc coulter pressed the straw, etc., it dug into the soil and could not be cut reliably, so the straw, etc. ended up getting tangled in the track posts. , which was supposed to increase the traction resistance.

The present invention was provided with the aim of solving such conventional problems, and its feature is that the lower end of the sub-soil crushing track can be moved deeply into the soil at a passing position. A plow for removing straw, etc. is installed at the front, and the front end of this plow sticks into the soil near the ground surface, and the upper part of the rear end is exposed above the ground surface. The point between the end and the upper part is a sloped surface for laterally removing objects to be removed such as straw.

Hereinafter, the present invention and the illustrated embodiment will be described in detail. In FIG. 1, 1 is a tractor body;
Equipped with PTO shaft 2, hydraulic system 3 for lifting and lowering work equipment, etc.
At the rear of this tractor body 1 is a three-point linkage mechanism 4.
The subsoiler 5 is towed and attached via the. As shown in FIGS. 2 and 3, the subsoiler 5 includes a machine frame 6, a track column 7, a plow metal 8, a bullet 9, and a disc coulter 10.
It is equipped with a plow 11 for removing straw, etc., a gauge wheel 12, etc. The machine frame 6 is supported by a top link 13 and a lower link 14 of the three-point linkage mechanism 4, and the track column 7 is supported by a holding cylinder 1 provided at the center of the rear end of the machine frame 6.
5, two set bolts 1 are vertically adjustable and are inserted into and supported by mounting pins 16, and abut from the rear.
7 and 18. Note that the track post 7 is in the form of a band plate, and a cutting blade 19 is provided on the front edge. The privilege 8 is fixed to the lower end of the track column 7, and a through ring 9 is connected to this privilege 8 via a traction cable 20. The disk coulter 10 is connected to the track 7
It is for cutting straw, roots, etc. in front of the passing position of the machine, and is supported freely between two mounting brackets 22 via a horizontal shaft 21, and each of the mounting brackets 22 is attached to the machine frame. It is fixed to the front end of the machine frame 6 by two bolts 23 so as to sandwich the machine frame 6 from both sides. The plow 11 is used to remove straw, etc. from both sides in front of the passage position of the track column 7 and disc coulter 10 while moving while sticking into the soil. As shown, it is configured in a mountain shape and is fixed at the tip of the mounting arm 24, which is approximately L-shaped when viewed from the side.
Three exclusion rods 25, 26, and 27 are provided in a fork shape. The plow 11 is formed in a rising shape with the front end 11a sticking into the soil near the ground surface and the upper rear end 11b exposed above the ground surface, and the space between the front end 11a and the upper rear end 11b is made of straw. A pair of left and right inclined surfaces 1 are used to exclude objects to be excluded such as
It is said to be 1c. Each of the exclusion rods 25, 26, and 27 is approximately L-shaped and arranged in a chevron-shaped positional relationship such that the center exclusion rod 26 is located upward and forward. The mounting arm 24 is reinforced with a reinforcing member 28 so as to connect the lower front end and the upper end.
A pair of mounting brackets 29 projecting rearward at the upper end.
The mounting bracket 29 is fixed to the front end of the machine frame 6 by two bolts 23 so as to sandwich the mounting bracket 22 of the disc coulter 10 from both sides.

30 is a top link mounting base, and a support shaft 31 is attached to this.
A vibrating table 32 is pivotally attached to the vibrating table 32, and a top link 13 and a drive rod 33 are connected to this vibrating table 32. 34 is a vibration force applying device, which is attached to the PTO shaft 2.
It has an eccentric shaft 35 that rotates integrally with the eccentric shaft 3.
A drive rod 33 is connected to 5. 36 is a bullet suspension cable, one end of which is connected to the lower set bolt 18 as shown in FIGS. 6 and 7, and the other end is connected to a hook 37 that can be freely engaged and detached from the engagement hole of the bullet 9. There is. The hook 37 is made of an elastic material or the like, and has a Q-shaped engagement part 38 bent in the middle, and the engagement part 38 can be elastically engaged with and detached from the upper set bolt 17. There is.

In the above configuration, when excavating the drainage culvert A, first pierce the culvert 8 at the lower end of the track pillar 7 diagonally at the edge of the shore, and when it reaches a predetermined depth, then pierce the culvert 8
After changing the attitude so that the tractor body 1 has a substantially horizontal attitude, the tractor body 1 is caused to travel back and forth. Then, the bullets 9 pass through the traces left by the plow metal 8, so that the bullets 9 can sequentially excavate predetermined drainage culverts A in the soil. At this time, the track pillar 7 also passes through the soil and the cutting blade 1
A groove is formed in the vertical direction at step 9. In front of this track post 7, a plow 11 and a disc coulter 10 are in a straight line, and the plow 11 sticks into the soil to move straw, etc. to both left and right sides. After removing the straw, the disc coulter 10 rolls to form the kerf B, so that straw and the like do not become entangled with the track posts 7, and an increase in traction resistance can be prevented. That is, since the plow 11 moves forward while sticking into the soil near the ground surface, roots, straw, etc. on the ground surface and in the soil near the ground surface can be reliably removed laterally. In this case, if the straw or the like is long, after passing over the plow 11, it will be caught by the exclusion rods 25, 26, 27, and will be expelled to the side while moving forward. . Note that if the ridge line portion of the plow 11 has a shape that rises significantly at the rear, the exclusion rods 25, 2 are not necessarily
6 and 27 are not necessary. In this way, the plow 11
The disc coulter 10 forms a cut groove B along which the track is removed, and the track column 7 passes along it.
It is possible to prevent an increase in traction resistance and to perform work efficiently.

On the other hand, during such excavation work, the PTO is always on.
If the shaft 2 is in the driving state, the top link 13
vibrates back and forth, and the vibration of the entire subsoiler 5 can also reduce resistance. That is, since the subsoiler 5 vibrates back and forth using the rear end of the lower link 14 as a fulcrum, the plow 11 and the disc coulter 1
0. The track posts 7 and the plow metal 8 move forward while vibrating back and forth, and compared to simply towing the vehicle, they dig into the soil better and the traction resistance is further reduced, so when driving on the road, The bullet 9 only has to be fixed along the track 7 as shown in FIG. 7 with the suspension rope 36 and the hook 37. Therefore, it is safer than when the bullet 9 is hanging down. Ground clearance can also be increased. Further, when the hook 37 is hooked onto the bullet 9, the engaging portion 38 can be used as a gripping portion. During work, the hanging rope 36 may be fixed by engaging the engaging portion 38 with the set bolt 17 as shown in FIG.

Note that the disc coulter 10 may be forcedly driven. Further, the plow 11 is not limited to a type that removes the plow on both sides, but may be of a type that ejects only on one side, for example.

As described above, in this invention, a plow is provided in front of the position where the track post passes, and this plow removes the straw, etc. in front of the position where the track post passes, so that there is no possibility that straw etc. will get tangled with the track post. There is no increase in traction resistance. In addition, the plow has a raised-back shape in which the front end sticks into the soil near the ground surface and the upper part of the rear end is exposed above the ground surface, and the space between the front end and the upper part of the rear end is
Since it has a sloped surface that removes objects such as straw to the side, it reliably removes not only objects on the ground surface, but also straw, roots, etc. in the soil near the ground surface without getting caught. It can be done, and its practical value is extremely large.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view, Fig. 3 is a perspective view of the main part, Fig. 4 is a plan view of the plow section, and Fig. 5. is the same side view,
FIG. 6 is a rear view of the suspension rope, and FIG. 7 is a side view of the suspension rope when the bullet is suspended. 1...Tractor body, 5...Subsoiler, 6...
... Machine frame, 7 ... Track column, 10 ... Disc coulter, 1
1... Plow, 24... Mounting arm, 25, 26, 2
7...Exclusion rod.

Claims (1)

[Scope of utility model registration request] A plow 11 for removing straw, etc. is provided in front of the passage position of the subsoil crushing track 7 whose lower end penetrates deep into the soil,
This plow 11 is formed in a rising shape with a front end 11a sticking into the soil near the ground surface and an upper rear end 11b exposed above the ground surface, and between the front end 11a and the upper rear end 11b, A subsoil crusher characterized by having an inclined surface 11c for laterally removing materials to be removed such as straw.