Puddling machine

Abstract

To provide a puddling machine capable of sufficiently exerting soil-moving performances, with focus on a speed range which each soil-moving body corresponds to.SOLUTION: A puddling machine 1 comprises: a rotationally-driven clod breaking part 3; a second soil-moving body 43 which is located in front of the clod breaking part 3 and moves soil toward a single wheel track formed by a travel machine being traveling; and a third soil-moving body 44 which in rear of the second soil-moving body 43, captures a flow of the soil having overflowed from the second soil-moving body 43 and moves the soil toward the wheel. The second soil-moving body 43 and the third soil-moving body 44 have respectively different characteristics depending on a speed range.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a tillage implement, and more particularly to a tillage implement capable of fully demonstrating soil-piling performance even at different speed ranges. [Background technology]

[0002] It is known that in a tilling machine attached to a traveling vehicle, if the ruts formed by the running part of the traveling vehicle are backfilled before crushing and leveling the land, the leveling can be improved. A tilling machine with a function of backfilling ruts is disclosed in Patent Document 1 "Tilling Machine" and Patent Document 2 "Tilling Machine". These tilling machines use a leveling auxiliary device installed between the tractor wheels and the soil crushing section to backfill the grooves with soil. The soil is then crushed and leveled by the soil crushing and leveling sections located behind the soil-collecting plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-87508 A [Patent Document 2] JP 2012-39981 A Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, in order to improve work efficiency, there has been a demand for larger tillage implements that can expand the working width and shorten the working time by increasing the working speed, etc. However, due to differences in soil quality and area, working fields using tillage implements do not necessarily operate at the same speed range.

[0005] The leveling auxiliary means (soil piling plate) of the "plowing machine" in Patent Document 1 is fixed to the stand mounting bracket. The leveling auxiliary means (soil piling plate) of the "plowing machine" in Patent Document 2 is positioned in front of the rotor cover so as to align with the position of the wheel ruts. Although these leveling auxiliary means (soil piling plates) vary depending on the soil quality, they can exert a soil piling effect and fill in the wheel ruts within a certain range of speeds, but they have the problem that the soil piling effect decreases outside of the certain speed range. The present invention has been made with attention to the above-mentioned problems, and aims to provide a tillage machine that is capable of fully demonstrating its soil-piling performance by focusing on the speed range to which each soil-piling body corresponds. [Means for solving the problem]

[0006] The present invention relates to Equipped with multiple earth-pile bodies to hold up soil, The characteristics of the soil-piling effect of multiple pilers differ depending on the speed range. A tilling machine characterized by: is provided.

[0007] The present invention relates to Equipped with multiple earth-pile bodies to hold up soil, The characteristics of the soil-piling effect of each of the multiple soil-piling bodies differ depending on the speed range. A tilling machine characterized by: is provided.

[0008] The present invention relates to A rotatable soil crushing unit; A second soil-collecting body located in front of the soil-collecting unit and collapsing soil toward one of the tracks formed by the traveling body; A third earth-piling body is provided behind the second earth-piling body, which captures the flow of earth overflowing from the second earth-piling body and piles the earth toward the wheel track. The second and third mounding bodies have different characteristics depending on the speed range. A tilling machine characterized by: is provided.

[0009] The present invention relates to A rotatable soil crushing unit; A first soil-collecting body is located in front of the soil-collecting section and is arranged on one side of the width of a rut formed by the traveling vehicle body, and accumulates soil toward the rut; A second soil-collecting body is provided in front of the soil-collecting section and accumulates soil toward the wheel track. The first and second mounding bodies have different characteristics depending on the speed range. A tilling machine characterized by: is provided.

[0010] The present invention relates to A rotatable soil crushing unit; A first soil-collecting body is located in front of the soil-collecting section and is arranged on one side of the width of a rut formed by the traveling vehicle body, and accumulates soil toward the rut; A second soil-collecting body disposed in front of the soil-collecting section and on the other side of the wheel track to collect soil toward the wheel track; A third earth-piling body is provided behind the second earth-piling body, which captures the flow of earth overflowing from the second earth-piling body and piles the earth toward the wheel track. The first mounding body, the second mounding body, and the third mounding body have different characteristics depending on the speed range. A tilling machine characterized by: is provided.

[0011] The present invention further comprises: The third earthmover captures soil and mud that overflows from the front of the second earthmover to the side of the third earthmover when the traveling speed is in a high speed range. A tilling machine characterized by: is provided.

[0012] The present invention further comprises: When the traveling speed is in the high speed range, the second mounding body moves more soil than the first mounding body. A tilling machine characterized by: is provided.

[0013] The present invention further comprises: When the traveling speed is in a low speed range, the first mounding body moves more soil than the second mounding body. A tilling machine characterized by: is provided.

[0014] The present invention further comprises: In the forward projection area, the area of ​​the first mounding body is approximately equal to the total area of ​​the second mounding body and the third mounding body. A tilling machine characterized by: is provided. Effect of the Invention

[0015] The present invention can provide a tillage machine that is capable of fully demonstrating soil-piling performance by focusing on the speed range to which each soil-piling body corresponds. [Brief description of the drawings]

[0016] [Figure 1] 1 is a front view of a tilling machine according to an embodiment of the present invention. [Diagram 2] 1 is a plan view of a tilling machine according to an embodiment of the present invention. [Diagram 3] This is a side view of the tilling machine according to the embodiment of the present invention, viewed from the left in the direction of travel. [Figure 4] 1 is a bottom view of a tillage implement according to an embodiment of the present invention, and is a partially enlarged view of a first to third mounding body portion on the left side in the direction of travel. [Diagram 5] FIG. 2 is a side view of the working surface of the first mounding body on the left side of the tilling machine according to the embodiment of the present invention, as viewed from the front. [Figure 6] FIG. 2 is a front view of the tilling machine according to the embodiment of the present invention, viewed from a direction perpendicular to the working surface of the first mounding body on the left side. [Figure 7] FIG. 2 is a front view of the tilling machine according to the embodiment of the present invention, viewed from a direction perpendicular to the working surface of the second mounding body on the left side. [Figure 8] FIG. 2 is a side view of the working surface of the second mounding body on the left side of the tilling machine according to the embodiment of the present invention, as viewed from the front. [Figure 9] FIG. 2 is a front view of the tilling machine according to the embodiment of the present invention, viewed from a direction perpendicular to the working surface of the third mounding body on the left side. [Figure 10] FIG. 2 is a side view of the working surface of the third soil-pile body on the left side of the tilling machine according to the embodiment of the present invention, as viewed from the front. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Number 1 is a tilling machine. A central working body 11 is located at the center of the tilling machine 1 and performs tilling work. The left extended working body 11L is located on the left side of the central working body 11 in the traveling direction, and is foldably attached to the central working body 11 to perform plowing work. 11R is the right extended working body. The right extended working body 11R is located on the right side of the central working body 11 in the traveling direction, can be folded up with the central working body 11, and is used for plowing work.

[0018] Reference numeral 2 denotes a frame. The frame 2 has a pipe frame 22. The pipe frame 22 is a frame that forms the skeleton of the tilling machine 1. Reference numeral 20 denotes a mounting portion. Reference numeral 201 denotes a top link pin. Reference numeral 202 denotes a lower link pin. The mounting portion 20 has the top link pin 201 and the lower link pin 202. The mounting part 20 is used to attach the tillage implement 1 to a tractor that tows the tillage implement 1.

[0019] Reference numeral 21 denotes an input case, and 211 denotes an input shaft. The input shaft 211 is attached inside the input case 21 and connected to a PTO shaft of a tractor to take out the driving force of the tractor. A top mast 212 is provided on the pipe frame 22. The top mast 212 has a top link pin 201 at its tip. Reference numeral 213 denotes a lower plate. The lower plate 213 is attached to the pipe frame 22. A lower link pin 202 is attached to the tip of the lower plate 213. A transmission case 23 is provided on the pipe frame 22 and outputs the driving force from the input shaft 211 provided on the input case 21.

[0020] A support frame 24 is provided at a position symmetrical to the transmission case 23 with respect to the input case 21, and holds a rotor shaft 31 (described later) below the pipe frame 22. Numeral 25 denotes a fulcrum. The fulcrum 25 is provided at both ends of the pipe frame 22, and serves as a folding and rotating fulcrum for the left extended working body 11L and the right extended working body 11R. A fulcrum frame 41L protruding upward from the left cover body 4L provided on the left extended working body 11L is rotatably connected to one of the fulcrum parts 25, and a fulcrum frame 41R protruding upward from the right cover body 4R provided on the right extended working body 11R is rotatably connected to the other fulcrum part 25.

[0021] A soil crushing unit 3 is provided below the frame 2 and is rotatable, and crushes soil in the field. 3L is the left extended soil crushing section. The left extended soil crushing section 3L is rotatably attached to the left extended working body 11L on the left side of the soil crushing section 3 in the traveling direction, and can be folded together with the left extended working body 11L. 3R is the right extended soil crushing section. The right extended soil crushing section 3R is rotatably attached to the right extended working body 11R on the right side of the soil crushing section 3 in the traveling direction, and can be folded together with the right extended working body 11R. A rotor shaft 31 is a rotating shaft that is hung between the lower parts of the transmission case 23 and the support frame 24, and is rotated by the driving force from the transmission case 23. 31L is the left extension-side rotor shaft. The left extension-side rotor shaft 31L is provided on the left side in the traveling direction of the rotor shaft 31. 31R is the right extension-side rotor shaft. The right extension-side rotor shaft 31R is provided on the right side in the traveling direction of the rotor shaft 31. The left extension-side rotor shaft 31L and the right extension-side rotor shaft 31R rotate by the driving force from the transmission case 23.

[0022] A plurality of tillage tines 32 are attached around the rotor shaft 31 and the left extension-side rotor shaft 31L and the right extension-side rotor shaft 31R, and are driven by the rotation of the rotor shaft 31 and the left extension-side rotor shaft 31L and the right extension-side rotor shaft 31R to till the field. The central dog clutch 33 is provided near the transmission case 23 and the support frame 24 at both ends of the soil crushing unit 3. The left extension side of the dog clutch 33L is provided on the right side of the left extended soil crushing section 3L in the traveling direction and meshes with the dog clutch center side 33 to form a dog clutch on the left side in the traveling direction. 33R is the right extension side of the extension side dog clutch. The right extension side of the extension side dog clutch 33R is provided on the left side of the left extension soil crushing section 3R in the traveling direction and meshes with the center side of the dog clutch 33 to form a dog clutch on the right side in the traveling direction. The dog clutch turns on and off the rotation drive of the rotor shaft 31 and the left extension side rotor shaft 31L and right extension side rotor shaft 31R.

[0023] The retaining portion 34 is a bearing portion for the rotor shaft 31, and is provided on the lower portion of the transmission case 23 and the support frame 24. The left extension side holding portion 34L is a bearing portion for the rotor shaft 31L, and is provided in the vicinity of the left extension side dog clutch 33L at the bottom of the left cover body 4L described later. The right extension side holding portion 34R is a bearing portion for the rotor shaft 31R, and is provided in the vicinity of the right extension side of the extension side dog clutch 33R at the bottom of the right cover body 4R described later. The retaining portion 34, the left extension side retaining portion 34L, and the right extension side retaining portion 34R each have a bearing and an oil seal therein.

[0024] Reference numeral 4 denotes a cover body. Cover body 4 covers the upper part of the soil crushing section 3. 4L is the left cover body. 4R is the right cover body. The left cover body 4L covers the upper part of the extended soil crushing section left 3L. The right cover body 4R covers the upper part of the extended soil crushing section right 3L. The cover body 4, the left cover body 4L and the right cover body 4R prevent the soil crushed or tilled by the soil crushing section 3 and the extended soil crushing section left 3L and the extended soil crushing section right 3R from scattering to the surroundings. The left fulcrum frame 41L is a member protruding upward for mounting the left extended working body 11L of the tilling implement 1 so as to be rotatable relative to the fulcrum portion 25, and is an arm integrated with the left cover body 4L. The right fulcrum frame 41R is a member protruding upward for mounting the right extended working body 11R of the tilling implement 1 so as to be rotatable relative to the fulcrum portion 25, and is an arm integrated with the right cover body 4R.

[0025] Reference numeral 42b denotes a support member that supports the first mounding body 42, which will be described later. The support member 42b of the first mounding body 42 is a member for attaching the first mounding body 42 to the tillage implement 1, and is a plate-like member that is arranged and fixed while curving downward from the lower plate 213. The lower part of the support member 42b is located below the lower end of the cover body 4, and the first mounding body 42 is attached to the lower part of this support member 42b. Reference numeral 43b denotes a support member that supports the second mounding body 43, which will be described later. The support member 43b of the second mounding body 43 is a member for attaching the first mounding body 42 to the tillage implement 1, and is a plate-like member that is arranged and fixed so as to hang downward from each of both ends of the front part of the cover body 4. The lower part of the support member 43b is located below the lower end part of the cover body 4, and the second mounding body 43 is attached to the lower part of this support member 43b.

[0026] Reference numeral 45 denotes a front cover. The front cover 45 is positioned forward of the front ends of the cover body 4 and the left cover body 4L and the right cover body 4R. Furthermore, the lower end of the front cover 45 is positioned lower than the front ends of the cover body 4 and the left cover body 4L and the right cover body 4R. In the embodiment, the front cover 45 is disposed in front of the cover body 4. The front cover 45 prevents mud and the like from scattering forward from between the cover body 4 and the field surface. Reference numeral 46 denotes a stand bracket. The stand bracket 46 is a bracket for mounting the tilling implement 1 on a stand (not shown). The stand brackets 46 are disposed on both ends of the front part of the cover body 4, and can ensure the stability of the implement when it is stored or moved using a stand (not shown). Numeral 47 denotes a rear soil-pile body. The rear soil-pile body 47 is a plate-shaped member, and is located rearward of the rotor shaft 31 and the extension-side rotor shaft left 31L and extension-side rotor shaft right 31R in the direction of travel, and is attached to the left cover body 4L or the cover body 4R. The lower end of the rear soil-pile body 47 inclines toward the dog clutch center side 33 as it moves downward, and is located below the dog clutch center side 33 in a front view. The rear soil-pile body 47 is located at the rear of the direction of travel of the tilling implement 1, and as the tilling implement 1 travels, it performs soil-pile work by moving soil that has passed near the left extension-side retaining portion 34L and the right extension-side retaining portion 34R toward the dog clutch center side 33.

[0027] The first soil-pile body 42 is located in front of the soil-crushing section 3 and below the cover body 4, and the surface of the first soil-pile body 42, which is located on one side of the width of a rut formed in the field by the tilling implement 1, which is the traveling machine body, is inclined rearward as it approaches the outside of the machine body width. The first soil-pile carrying body 42 is installed at the center of the tillage implement 1. 42a is the first working surface. The first working surface 42a is provided on the surface of the first soil piling body 42, and as the tillage implement 1 moves, the soil that comes into contact with it is sent sequentially along the first working surface 42a toward the rear and the tread groove side, performing soil piling work. The upper and lower ends of the first working surface 42a are curved toward the front, and the soil pushed out is prevented from climbing over this curved portion and is efficiently sent to the tread groove side.

[0028] The second soil-pile body 43 is located in front of the soil-crushing section 3 and below the cover body 4, and the surface located on the other side of the wheel track is inclined backward as it approaches the inside relative to the width of the tillage implement 1, which is the width of the machine body. The second mounding body 43 is installed on the end side of the cover body 4, which is on the outer side of the width of the tillage implement 1 than the first mounding body 42. The first mounding body 42 and the second mounding body 43 are installed facing each other across the width of a rut formed in the field by the tilling implement 1, which is a traveling machine body. 43a is the second working surface. The second working surface 43a is provided on the surface of the second soil-pile body 43, and as the tillage implement 1 moves, the soil that comes into contact with it is sent sequentially backward and toward the wheel groove side along the second working surface 43a to perform soil-pile work. The upper and lower ends of the second working surface 43a are curved toward the front, and the soil pushed out is prevented from climbing over this curved portion and is efficiently sent to the wheel groove side.

[0029] The third soil-pile body 44 is located in front of the soil-crushing section 3 and below the cover body 4, and is disposed on the other side of the wheel rut. The surface located on the outer side of the second soil-pile body 43 on the left and right sides in the traveling direction is inclined backward as it approaches the inside with respect to the width of the tilling implement 1, which is the width of the machine body. The third mounding body 44 is installed on the end side of the cover body 4 of the tillage implement 1, and is located further outward in the direction of travel than the second mounding body 43. The third mounding body 44 is attached to a stand bracket 46, with one end of the stand bracket 46 extending downward as a support member. The first mounding body 42, the second mounding body 43 and the third mounding body 44 are installed facing each other across the width of a rut formed in the field by the tillage implement 1, which is a traveling machine body. 44a is the third working surface. The third working surface 44a is provided on the surface of the third soil-pile body 44, and as the tillage implement 1 moves, the soil that comes into contact with the third working surface 44a is sequentially sent backward and toward the wheel groove side to perform soil-pile work. The third working surface 44a is oriented slightly downward compared to the first working surface 42a and the second working surface. That is, from Fig. 4, the first action surface 42a and the second action surface 43a face diagonally forward from each other, and are not inclined in the vertical direction of the aircraft, which is the depth direction in the drawing. They are parallel to each other only in the vertical inclination component. As can be seen from Fig. 8, the third action surface 44a is inclined downward with respect to the second action surface 43a. The line segment at the center of the second action surface 43a and the line segment of the third action surface 44a (not shown; equivalent to the contour line drawn immediately to the left of the starting point on the right side of the lead line of 44) are not parallel. Therefore, when the soil moves along the surface toward the wheel tracks, the soil can be sent below the field surface as it moves backward and toward the wheel tracks. Therefore, the soil that has moved along the third working surface 44a is prevented from floating up to the field surface, so the wheel tracks can be filled in while flattening the field surface without disturbing it.

[0030] The area of ​​the second action surface 43a of the second soil-pile 43 is smaller than the area of ​​the first action surface 42a of the first soil-pile 42, and the area of ​​the third action surface 44a of the third soil-pile 44 is smaller than the area of ​​the second action surface 43a. The area of ​​the second working surface 43a of the second soil-pile body 43 is smaller than the area of ​​the first working surface 42a of the first soil-pile body 42, and the area of ​​the third working surface 44a of the third soil-pile body 44 is smaller than the area of ​​the second working surface 43a. In other words, the working areas of the first working surface 42a, the second working surface 43a, and the third working surface 44a are set to be different from each other.

[0031] As shown in FIG. 4, which shows a bottom view, α is the first angle of the first mound 42. The first angle α is an angle with respect to the traveling direction of the first mounding body 42. Similarly, β is a second angle of the second mounding body 43. The second angle β is an angle of the second mounding body 43 with respect to the traveling direction. Similarly, γ is a third angle of the third mounding body 44. The third angle γ is an angle of the third mounding body 43 with respect to the traveling direction.

[0032] In a plan view or a bottom view, the third angle γ, which is the angle between the traveling direction and the third acting surface 44a, is larger than the second angle β, which is the angle between the traveling direction and the second acting surface 43a, and the first angle α, which is the angle between the traveling direction and the first acting surface, is larger than the third angle γ, which is the angle between the traveling direction and the third acting surface 44a. That is, the first angle α, the second angle β, and the third angle γ are set to be angles different from each other.

[0033] As shown in Fig. 2, which is a plan view, and Fig. 3, which is a side view seen from the left side in the direction of travel, the front end of the first mounding body 42 is located rearward of the front end of the second mounding body 43. The second mounding body 43 protrudes in the direction of travel from the first mounding body 42. In reality, the backfilling effect is better if the first mounding body 42 protrudes in the direction of travel, but the first mounding body 42 cannot protrude in the direction of travel to avoid contact with the tires and crawlers of the tractor when the three-point link moves up and down.

[0034] The front end of the third mounding body 44 is located rearward of the front end of the first mounding body 42. In order to supplement the flow of soil overflowing from the second mounding body 43, the third mounding body 44 is provided some distance rearward of the second mounding body 43. If the third mounding body 44 is provided too far forward of the second mounding body 43, the gap between the second mounding body 43 and the third mounding body 44 will become narrow, and the flow of soil passing between them will become poor. The front ends of the first, second and third mounding bodies 42, 43 and 44 protrude forward from the front end of the cover body 4. The first mounding body 42 is disposed near the center of the cover body 4 in the width direction of the body, and the second and third mounding bodies 43, 44 are disposed at the ends of the cover body 4 in the width direction of the body. Before the soil reaches the soil crushing section 3 located behind the front end of the cover body 4, the flow of the soil can be determined and the soil can be sent to the wheel groove in advance.

[0035] The first soil-collecting body 42 is attached to a support member 42b arranged facing downward from the mounting part 20 for mounting to the tillage implement 1, which is the traveling machine body. Reference numeral 46 denotes a stand bracket. The stand bracket 46 is disposed between the second soil-piling body 43 and the third soil-piling body 44 in a plan view, and a stand (not shown) can be attached to the stand bracket 46. Reference numeral 34 denotes a holding portion. The holding portion 34 is located behind the third soil-collecting body 44 and holds the rotation shaft of the soil crushing portion 3. The holding portion 34 is attached to the lower portions of the transmission case 23 and the support frame 24, respectively.

[0036] A ground leveling body 5 is attached to the rear of the cover body 4 at the rear of the tillage implement 1 in the direction of travel during operation. The ground leveling body 5 levels the field as the tillage implement 1 travels. The left ground leveling body 5L is attached to the rear of the left cover body 4L and constitutes the left end of the ground leveling body 5 in the traveling direction during work. The right ground leveling body 5R is attached to the rear of the right cover body 4R and constitutes the right end of the ground leveling body 5 in the direction of travel during work.

[0037] Reference numeral 51 denotes a first ground leveling body. As shown in Fig. 2, which is a plan view of the tilling machine 1 according to an embodiment of the present invention, the first ground leveling body 51 levels the ground forward of the rear end of the tilling machine 1. A first ground leveling body left 51L is located at the left end of the first ground leveling body 51 in the traveling direction, and a first ground leveling body left 51R is located at the right end in the row direction. 512 is a fulcrum axis. Reference numeral 52 denotes a hinge. The hinge 52 is attached via a fulcrum shaft 512 to the first leveling body 51, the first leveling body left 51L, and the first leveling body left 51R of the leveling body 5 as a pivot point for vertical rotation relative to the cover body 4, the cover body left 4L, and the cover body right 4R.

[0038] A second soil leveling body 56 is disposed on the rear end side of the first soil leveling body 51 attached to the tillage implement 1, as shown in FIG. The left second ground leveling body 56L levels the rear of the left cover body 4L located on the left side in the traveling direction. The right second ground leveling body 56R levels the rear of the right cover body 4R located on the right side in the traveling direction. The reference numeral 562 denotes a pivot point. The pivot point 562 is provided at the rear end of the first ground leveling body 51, the left first ground leveling body 51L, and the left first ground leveling body 51R, and allows the second ground leveling body 56, the left second ground leveling body 56L, and the right second ground leveling body 56R to be pivotable up and down relative to the first ground leveling body 51, the left first ground leveling body 51L, and the left first ground leveling body 51R.

[0039] As shown in Table 1, the sizes of the areas of the working surfaces of the first, second and third pilers 42, 43 and 44 are in the order of first piler 42 > second piler 43 > third piler 44 in both forward projected area and actual area. The first piler 42 has the largest forward projected area and actual area, so it can capture a large amount of soil and has a large soil-pile effect in the low-speed range. The second piler 43 has a smaller forward projected area and actual area than the first piler 42, but it is less likely to resist the soil pushing in from the direction of travel and can move efficiently along the second working surface 43a, so it has a large soil-pile effect in the high-speed range. The third piler 44 assists the second piler 43 in piling up soil in the high-speed range, and can capture soil and mud that has overflowed from the front of the second piler 43 to the side of the third piler 44 and move it to the center of the working width. The first mounding body 42, the second mounding body 43 and the third mounding body 44 each have different characteristics and roles in different speed ranges.

[0040] The reason why the active area of ​​the second mounding body 43 is smaller than that of the first mounding body 42 in both forward projection area and actual area will be explained. Simply put, if the second mounding body 43 is placed symmetrically with the first mounding body 42 and the rut across the width of the rut, the amount of soil movement increases, and the backfilled ruts may end up with more soil. To prevent this, the working area of ​​the second mounding body 43, which is placed symmetrically with the first mounding body 42 and the rut across the width of the rut, is made smaller in both forward projection area and actual area to adjust the amount of soil to be backfilled in the rut.

[0041] The reason why the active area of ​​the third mounding body 44 is smaller than that of the second mounding body 43 in both forward projection area and actual area as shown in Table 1 will be explained below. When the working speed of the tilling implement 1 is increased, soil may spill outward from the front end of the second mounding body 43. The third mounding body 44 captures this spilled soil and moves it toward the rut via the rear of the second mounding body 43. Since the third mounding body 44 serves as an auxiliary for the second mounding body 43, the area of ​​the third working surface 44a of the third mounding body 44 is smaller than the area of ​​the second working surface 43a of the second mounding body 43 in both forward projection area and actual area. Conversely, if it is made larger, the amount of soil to be filled back into the rut increases, which causes the inconvenience of forming ruts.

[0042] The area of ​​the active surface of the first mounding body 42 and the total area of ​​the active surfaces of the second mounding body 43 and the third mounding body 44 are approximately equal in terms of forward projection area. In terms of actual area, the sum of the second and third pilers 43 and 44 exceeds that of the first piler 42, but by combining the difference in the forward projection area of ​​each piler formed by the action angle of each piler, as described below, and the arrangement of each piler, it is possible to achieve an optimal pile-up effect even at different speed ranges.

[0043] The size of the first soil pile 42 will be described. Although the first mounding body 42 can move a large amount of soil, due to the large first angle α described below, the soil may move inefficiently toward the rut side, i.e., in the width direction, as it moves forward, depending on the soil quality. Specifically, there is a phenomenon in which part of the soil that collides with the first working surface 42a of the first mounding body 42 from the front in the direction of travel tends to escape upward. In order to receive this escaping soil, the area of ​​the first working surface 42a of the first mounding body 42 is made large. The area is particularly enlarged toward the top.

[0044] The shape of the first soil pile 42 will be described. The upper end of the first working surface 42a of the first mounding body 42 provided on the first mounding body 42 is curved forward. This curvature prevents the soil from moving over the top of the first mounding body, and causes the soil to move forward of the first working surface 42a of the first mounding body 42 and toward the wheel track. Also, the upper end of the first working surface 42a is inclined downwards as it approaches the rut side. The front side of the first working surface 42a of the first mounding body 42, i.e., the side located farther from the rut, has a long distance to move sideways. This causes the soil to rise up as described above. On the other hand, the rear side of the first working surface 42a of the first mounding body 42, i.e., the side closer to the rut, has a short distance to move sideways, so the soil moves to the rut side before moving upwards. For this reason, even if the rut side, i.e., the upper end on the inside, is inclined downwards, problems with soil movement are unlikely to occur.

[0045] The angles of the respective action surfaces will now be described. As described above, the first and second mounders 42 and 43 have different preferred working speeds, and the angles are set based on this. By making a large angle with the traveling direction, the first mounding body 42 has a large projected area as seen from the front in the traveling direction, so that more soil can be piled up. In this embodiment, the most suitable angle for the first mounding body 42 is 65 degrees, and the suitable angle range is 60 to 70 degrees. If it is greater than 70 degrees, the soil flow will be poor and the traction resistance of the tillage implement 1 will be large. If the angle is less than 60 degrees, the soil movement efficiency at low speeds will decrease.

[0046] The angle of the second mounding body 43 with respect to the traveling direction is set smaller than that of the first mounding body 42. In the embodiment, the most preferable angle of the second mounding body 43 is 45 degrees, and the preferable angle range is 40 to 50 degrees. This is to improve the soil flow even when the traveling speed increases. When the traveling speed of the tilling implement 1 increases, the flow of soil that collides with the first mounding body 42, which has a large angle with respect to the traveling direction, becomes poor, whereas the second mounding body 43, which has a smaller angle with respect to the traveling direction than the first mounding body 42, can improve the soil flow compared to the first mounding body 42. In other words, when the speed range is high, the second mounding body 43 can move a larger amount of soil than the first mounding body 42. As a result, the first mounding body 42 and the second mounding body 43 can ensure the amount of soil to fill the ruts over a wide range of working speeds. Incidentally, the customary speed during plowing work is about 1 to 3 km / h. The working speed in this embodiment is 1 to 5.5 km / h.

[0047] As shown in Table 1, the third soil piler 44 has a small area both in the frontal projection area and the actual area, and therefore has a slightly larger angle compared to the second soil piler 43 in order to secure the frontal projection area. In the embodiment, the most preferable angle is 50 degrees, and the preferable angle range is 45 to 55 degrees. The third soil piler 44 allows the soil and soil clods to be sent to the soil crushing section 3 without passing through the transmission case 23 and support frame 24, which are parts where the tilling tines do not rotate, and the vicinity of the holding section 34 attached to these that holds the soil crushing section. This makes it possible to prevent a decrease in puddling performance due to poor soil crushing of the soil and soil clods.

[0048] To avoid interference with the traveling body located in front, the tips of the first mounding body 42, the second mounding body 43 and the third mounding body 44 are set so as not to protrude forward from the tip of the mounting part 20. Also, because the tips of the first mounding body 42, the second mounding body 43 and the third mounding body 44 protrude forward from the front end of the cover body 4, it is possible to stop the movement of the soil before it reaches the rotation area of ​​the tilling tines 32, improving soil crushing performance.

[0049] The stand bracket 46 will now be described. The stand bracket 46 is a holding member for attaching a stand (not shown) for grounding the tiller alone during storage. In particular, when the extension working unit is stored in a folded state, the center of gravity becomes high, so in order to ensure stability when grounded, it is best to provide the stand in a position as wide as possible on the width of the machine. In the case of the embodiment, stability is ensured by providing the stand at the end of the cover body 4 in the front part of the transmission case 23 and the support frame 24. [Table 1] [Explanation of symbols]

[0050] 1. Plowing machine 11 Central working body 11L Extended Working Body (Left) 11R Extended work body (right) 2 Frames 20 Mounting part 201 Top link pin 202 Lower link pin 21 Input Case 211 Input shaft 212 Topmast 213 Lower Plate 22 Pipe Frame 23 Transmission case 24 Support Frame 25 Support 3 Crushing section 3L extended crushing section (left) 3R extended crushing section (right) 31 Rotor shaft 31L Extended rotor shaft (left) 31R Extended rotor shaft (right) 32 Cultivating Claw 33 Dog clutch (center side) 33L Extended dog clutch (left extended side) 33R Extended dog clutch (right extended side) 34 Holding part 34L Left extension side holding part 34R Right extension side holding part 4 Cover body 4L Cover body (left) 4R Cover body (right) 41L Left support frame 41R Right support frame 42 First soil pile 42a 1st working surface 42b Support member for first mound 43 Second Earthwork 43a Second working surface 43b Support member for second mound 44 Third Earthwork 44a Third working surface 45 Front cover 46 Stand bracket 47 Rear earth collector 5 Earth leveling body 5L Left leveling body 5R Right Leveling Body 51 1st land leveling body 51L 1st left leveling body 51R Right first leveling body 512 Pivot Axis 52 Hinge 56 Second leveling body 562 Pivot Point α First angle (first mound) β Second angle (second mound) γ 3rd angle (3rd mound

Claims

1. Equipped with multiple earth-pile bodies to hold up soil, The characteristics of the soil-piling effect of multiple pilers differ depending on the speed range. This tilling machine is characterized by the following:

2. Equipped with multiple earth-pile bodies to hold up soil, The characteristics of the soil-piling effect of each of the multiple soil-piling bodies differ depending on the speed range. This tilling machine is characterized by the following:

3. A rotatable soil crushing unit; A second soil-collecting body is located in front of the soil-collecting unit and accumulates soil toward one of the tracks formed by the traveling vehicle body. A third earth-pile body is provided behind the second earth-pile body, which captures the flow of earth overflowing from the second earth-pile body and piles the earth toward the wheel track. The second and third mounders have different characteristics depending on the speed range. This tilling machine is characterized by the following:

4. A rotatable soil crushing unit; A first soil-collecting body is located in front of the soil-collecting section, and is arranged on one side of the width of a rut formed by the traveling vehicle body, and accumulates soil toward the rut; A second soil-collecting body is provided in front of the soil-collecting section and accumulates soil toward the wheel track. The first and second mounders have different characteristics depending on the speed range. This tilling machine is characterized by the following:

5. A rotatable soil crushing unit; A first soil-collecting body is located in front of the soil-collecting section, and is arranged on one side of the width of a rut formed by the traveling vehicle body, and accumulates soil toward the rut; A second soil-collecting body disposed in front of the soil-collecting section and on the other side of the wheel track to collect soil toward the wheel track; A third earth-pile body is provided behind the second earth-pile body, which captures the flow of earth overflowing from the second earth-pile body and piles the earth toward the wheel track. The first mounding body, the second mounding body, and the third mounding body have different characteristics depending on the speed range. This tilling machine is characterized by the following:

6. The third earthmover captures soil and mud that overflows from the front of the second earthmover to the side of the third earthmover when the traveling speed is in a high speed range.

6. The tilling implement according to claim 3 or 5, characterized in that

7. When the traveling speed is in a high speed range, the second mounding body moves more soil than the first mounding body.

6. The tilling implement according to claim 4 or 5, characterized in that

8. When the traveling speed is in a low speed range, the first mounding body moves more soil than the second mounding body.

6. The tilling implement according to claim 4 or 5, characterized in that

9. In the forward projection area, the area of ​​the first mounding body is approximately equal to the total area of ​​the second mounding body and the third mounding body.

6. The tilling implement according to claim 5,

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