JPS6121925Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a pressure plate in a land leveling and pressure plate device for a sub-scraping machine.

(b) Conventional technology When carrying out grading of paddy fields, it is ideal to supply an appropriate amount of water into the rice field over a certain period of time to moisten the soil with an appropriate amount of moisture, and then grading the soil. Since this is usually difficult due to weather conditions, it is often necessary to supply a large amount of water all at once. As a result, the ratio of muddy water in rice fields is greater than that of muddy soil. Sub-scraping work is carried out in such situations, but conventionally, the compaction plate of a sub-scraping machine has been an elastic rectangular plate (1976-41768) with a planar corrugated rear side. Pressing plate of the same thickness to be formed (1986-
77907) etc. were known.

(c) Problems that the invention aims to solve However, even though it has elasticity, if the plate is rectangular in shape, the muddy soil will not be effectively leveled because the muddy water will push up the plate. . In addition, contaminants such as straw and tree stumps cannot be pushed into the muddy soil and end up floating on the surface of the muddy water.
There was a drawback that the rice transplanter got tangled with the planting tweezers during post-work. Furthermore, a large amount of muddy water accumulates on the suppression plate, which places a large load on it and increases traction resistance, which hinders the work.In addition, the muddy water pushed by the suppression plate flows out to both ends of the suppression plate, sending out crushed soil and mud. The disadvantage was that it was difficult to level the land because of the unevenness. In addition, even if the pressure plate has a planar waveform on the rear side, if the thickness is the same, the pressure force of the pressure plate will be the same in the corrugated convex part and the concave part, so the mixed soil will not flow out smoothly. It was hot.

(d) Means for solving the problem This invention is a substitute soil crusher that is connected to a ground leveling plate that is rotatably attached to the soil crusher, has a planar waveform on the rear side, and is made of an elastic body. In the pressure plate, a thick part is formed on the front side of the waveform convex part on the rear side of the pressure plate, and a thin wall part is formed on the front side of the waveform concave part on the rear side of the pressure plate. To provide a compacting plate for a substitute soil crushing machine, which is characterized by the following.

(E) Function When the purge crusher is driven forward and purge work begins, the crushed soil is pushed by the leveling plate and pinning plate, leveling the muddy ground. At this time, the thick part of the suppression plate guides and buries foreign matter such as rice stumps and weeds scattered on the surface of the muddy water into the soil, and the thin part has a weaker suppressing force than the thicker part, so the muddy soil and muddy water are removed. It rises up and curves slightly in response to the impact, and while the mud is moderately suppressed, the mud and soil are
To easily drain muddy water from a corrugated recess.

(F) Embodiment Next, the configuration of this invention will be explained based on the drawings of the embodiment. 1 is a substitute soil crusher. Substitute soil crusher 1
The tractor is composed of a machine frame section 2, an earth crushing section 3, and a ground leveling section 4, and is connected to the rear of the tractor body (not shown) by a top link 5 and a pair of lower links 6. The machine frame section 2 includes a cylindrical machine frame 7 containing a transmission shaft, and a transmission case 8 provided at one end of the machine frame 7.
, a case 9 provided at the other end, and a mission case 10 provided at the center. Crushing section 3
consists of a rotary-type earth crushing body 11 and a cover 12 that covers the top of the earth crushing body 11, and the rotating shaft of the earth crushing body 11 is supported by bearings of a transmission case 8 and a case 9. The ground leveling and pressing unit 4 includes a leveling plate 13, a leveling plate 14, a support arm 15 that supports and rotates these, and a suspension rod 1.
6, an adjustment rod 17, and a shaft rod 18. Leveling board 1
3 is formed of a slightly curved plate-like body having approximately the same width as the cover 12, and is rotatably connected to the rear side of the cover 12 with several hinges 19. A pair of support arms 15 are attached to the machine frame 7
One end is rotatably attached to the holder, and it is placed almost horizontally toward the rear. The shaft rod 18 is installed between the other ends of the pair of support arms 15, and is connected to the top link 5 by the adjustment rod 17.
is connected and supported. The suspension rod 16 has an upper end rotatably connected to the other ends of the pair of support arms 15, and a lower end rotatably connected to a connecting protrusion 20 protruding from the rear of the ground leveling plate 13. 21 is a stopper handle;
It is attached to the upper part of the adjustment rod 17.

The pressing plate 14 is made of a strong elastic material with an appropriate thickness and has approximately the same width as the leveling plate 13, and its front side is fixed to the rear side of the leveling plate 13 with bolts 22. 23
is an auxiliary material for connection such as a washer buried in the front side of the pressing plate 14. The rear side of the pressing plate 14 is formed into a planar wave shape. The corrugated convex portion 24 has a flat tip and is formed to have the same thickness as the plate thickness. Wave-shaped recess 2
The rear portion 26 of No. 5 is made thin by cutting the surface of the plate and forming a gently sloped surface toward the rear. The thin portion 26 may be cut in a portion corresponding to the rear portion of the back surface of the pressure plate 14. Continuous part 2 between thick part 24 and thin part 26
7 is formed into a curved surface. Reference numeral 28 denotes a firm elastic core material embedded in the thick portion 24.

Next, to explain the operation of this device, the stopper handle 21 is rotated, the length of the adjustment rod 17 is adjusted, the ground leveling plate 13 and the pressing plate 14 are tilted at a desired angle, and the soil crushing machine 1 is moved into the paddy field. Put it in. When the substituting soil crushing machine 1 is driven forward to start the substituting work, the crushing body 11 digs into the soil and crushes the soil, and the crushed soil is scattered backward by the rotation of the crushing body 11. , it hits the leveling plate 13 and becomes an instant embankment, but it is pushed away by the advancing leveling plate 13 and pressing plate 14,
Leveling the muddy ground. At this time, the thick part 24 of the suppressing plate 14 guides and buries the compost of foreign matter such as rice stumps and weeds scattered on the surface of the muddy water into the soil.
6 is muddy soil because the compaction force is weaker than that of the thick walled part 24.
The muddy soil and muddy water are flowed out from the corrugated recesses 25 without any force while being moderately compressed by floating and curving to some extent upon receiving the muddy water. Further, as shown in FIG. 6, if the back surface of the plate is cut to form a thin wall portion 26, the pressure plate 14 is
It is suitable for paddy fields etc. with a large amount of muddy water, and the muddy soil can be easily leveled because the muddy water flows out rearward through the corrugated recesses 25 along the slope of the back surface of the plate more smoothly.

(g) Effects of the device Since this device has the above-mentioned structure and function, the mud and muddy water pushed by the suppression plate can flow out easily from the areas where the suppression force is weak.
The muddy soil is leveled well, allowing for highly effective grading work. Furthermore, since the traction resistance applied to the suppressing plate is drastically reduced, no unnecessary load is placed on the tractor, etc., resulting in less energy loss. Further, foreign objects such as stumps can be reliably buried in the mud, and the foreign objects will not become entangled with the planting tweezers of the rice transplanter, which will be done later.

In addition, since the rear side of the pressure plate is formed into a corrugated shape and the sloped surface is cut, the amount of raw materials for the elastic material used is small and the manufacturing cost is relatively low, which is an economical effect.

[Brief explanation of the drawing]

The figure is a drawing showing an embodiment of this invention, and the first
The figure is a perspective view of the substitute soil crusher, Figure 2 is a partially enlarged perspective view of the crushing plate, Figure 3 is a sectional view taken along A-A in Figure 1, and Figure 4 is a sectional view taken along B-B in Figure 1. , Fig. 5 is a schematic diagram showing the operating state of the substitute crusher, Fig. 6 is a pacing plate showing another embodiment, a cross-sectional view of a portion corresponding to Fig. 4, and Fig. 7 is a pacing plate. FIG. 3 is a cross-sectional view of the case where an elastic core material is embedded in the thick part of the structure. 1... Substitute soil crusher, 2... Machine frame section, 3... Soil crushing section, 4... Land leveling compaction section, 5... Top link, 6
... lower link, 7 ... machine frame, 8 ... transmission case, 9 ... case, 10 ... transmission case,
11... Crushed earth body, 12... Cover, 13... Leveling plate, 14... Suppressing plate, 15... Support arm, 16...
Hanging rod, 17... Adjustment rod, 18... Shaft rod, 19...
... Hinge, 20 ... Connection protrusion, 21 ... Stopper handle, 22 ... Bolt, 23 ... Auxiliary material for connection, 24 ... Waveform protrusion, (thick part), 25 ... Waveform recess, 26 ... ... Back part (thin wall part), 27 ... Connection part, 28 ... Elastic core material.

Claims (1)

[Scope of Claim for Utility Model Registration] In a crushing plate of a substitute soil crushing machine, which is connected to a ground leveling plate rotatably attached to a soil crushing machine, has a rear side formed in a planar wave shape, and is made of an elastic body,
A thick part is formed on the front side of the pressure plate from the wavy convex part on the rear side of the pressure plate, and a thin wall part is formed on the front side of the pressure plate from the waveform concave part on the rear side of the pressure plate. A compacting plate for a substitute soil crusher. A compacting plate for a sub-scraping earth crusher according to claim 1, wherein the thin wall portion is formed on a slope.