Puddling implement

Abstract

Advantageous Effects of Invention The present invention can provide a puddling work machine capable of sufficiently exerting a soil gathering performance by focusing on a speed range corresponding to each soil gathering body.SOLUTION: This puddling implement 1 is characterized in that the puddling implement 1 which is a traveling machine body is equipped with soil gathering bodies 42, 43 and 44 for gathering soil on both sides of the width of one rut formed in a field by the puddling implement 1, and the soil gathering bodies 42, 43 and 44 arranged on both sides of the width of the one rut are different from each other in either area or shape and located at positions deviated from each other in the traveling direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] It is known that in a plow farming machine attached to a traveling vehicle, leveling can be improved by backfilling the ruts and grooves formed by the running parts of the traveling vehicle before crushing the soil and leveling the ground. Plow farming machines with the function of backfilling ruts and grooves are disclosed in Patent Document 1, "Plow Farming Machine," and Patent Document 2, "Plow Farming Machine." These tillage machines use a leveling auxiliary device installed between the tractor wheels and the soil crushing unit to backfill the grooves with soil. The soil is then crushed and leveled by the soil crushing and leveling units located behind the shovel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-87508 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-39981 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 plow farming machines to be larger, with wider working widths, and to be faster and shorter working times. However, due to differences in soil quality and area, not all fields using plow farming machines are necessarily operated at the same speed.

[0005] The leveling auxiliary means (soil piling plate) of the "puddling implement" in Patent Document 1 is fixed to the stand mounting bracket. Furthermore, the leveling auxiliary means (soil piling plate) of the "puddling implement" in Patent Document 2 is positioned in front of the rotor cover to align with the position of the ruts. While these leveling auxiliary means (soil piling plates) can effectively pile up soil and fill in ruts within a certain speed range, which differs depending on the soil quality, they have the problem that their effectiveness decreases outside of this speed range. The present invention has been made with an eye on the above-mentioned problems, and aims to provide a tillage implement that can fully demonstrate its soil-piling performance by focusing on the speed range to which each soil-piling body corresponds. [Means for solving the problem]

[0006] This invention is The plowed field is provided with a plow body that gathers soil across the width of a rut formed in the field by the plowed field machine, which is a traveling machine body. The earth-removing bodies arranged on both sides of the width of one rut are different from each other in either area or shape, and are positioned offset from each other in the direction of travel. A plow working machine characterized by the above. is provided.

[0007] The present invention further provides: A plow work machine characterized in that the plurality of plow bodies have different characteristics of plow effect. is provided.

[0008] The present invention further provides: The characteristics of the soil-piling effect of multiple pilers vary depending on the speed range. A plow working machine characterized by the above. is provided.

[0009] The present invention further provides: The plurality of soil-retaining bodies are arranged with their positions shifted in the left-right direction. A plow working machine characterized by the above. is provided.

[0010] The present invention further provides: Each of the plurality of mounds has a different inclination angle. A plow working machine characterized by the above. is provided.

[0011] The present invention further provides: The characteristic of the soil-packing effect is the amount of soil captured. A plow working machine characterized by the above. is provided.

[0012] The present invention further provides: The characteristic of the soil-packing effect is the resistance of the soil. A plow working machine characterized by the above. is provided.

[0013] The present invention further provides: The characteristic of the soil-packing effect is the soil movement efficiency. A plow working machine characterized by the above. is provided.

[0014] The present invention further provides: The characteristic of the soil-reducing effect is the amount of soil that is moved. A plow working machine characterized by the above. is provided.

[0015] The present invention further provides: The characteristics of the soil-raising effect are due to the velocity, A plow working machine characterized by the above. is provided.

[0016] The present invention further provides: Each of the plurality of mounds has a different active area. A plow working machine characterized by the above. is provided.

[0017] The present invention further provides: The plurality of soil-removing bodies are arranged on one side of the width of one rut formed by the traveling vehicle body, and a first soil-removing body that moves soil toward the rut; A second mounding body arranged opposite to the first mounding body on the other side across the width of one rut; A plow working machine characterized by comprising: is provided.

[0018] The present invention further provides: The first mounding body is located rearward of the second mounding body. A plow working machine characterized by the above. is provided.

[0019] The present invention further provides: The first and second mounders do not protrude forward from the mounting portion attached to the tractor. A plow working machine characterized by the above. is provided.

[0020] The present invention further provides: The first and second soil-collecting bodies have different soil-collecting areas. A plow working machine characterized by the above. is provided.

[0021] The present invention further provides: The area of ​​the second earth-collecting body that collects soil is smaller than the area of ​​the first earth-collecting body that collects soil. A plow working machine characterized by the above. is provided. [Effects of the Invention]

[0022] The present invention focuses on the speed range that each of the soil-collecting bodies corresponds to, and is designed to fully demonstrate soil-collecting performance. It is possible to provide a plow working machine that can [Brief explanation of the drawings]

[0023] [Figure 1]1 is a front view of a tillage implement according to an embodiment of the present invention. [Figure 2] 1 is a plan view of a tillage implement according to an embodiment of the present invention. [Figure 3] FIG. 1 is a side view of a tillage implement according to an 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, showing a partial enlargement of the first to third mounding bodies on the left side in the direction of travel, with the upper part of the drawing showing the front part of the tillage implement. [Figure 5] FIG. 2 is a side view of the working surface of the first mounding body on the left side of the tillage implement according to the embodiment of the present invention, as viewed from the front. [Figure 6] FIG. 2 is a front view of the tillage implement 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 tillage implement 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 tillage implement according to the embodiment of the present invention, as viewed from the front. [Figure 9] FIG. 2 is a front view of the tillage implement 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 mounding body on the left side of the tillage implement according to the embodiment of the present invention, as viewed from the front. DETAILED DESCRIPTION OF THE INVENTION

[0024] 1 is a tillage machine. A central working body 11 is located in the center of the tilling implement 1 and performs tilling work. The left extension working body 11L is located on the left side of the central working body 11 in the direction of travel, and is foldably attached to the central working body 11 to perform tilling work. 11R is the right extension work body. The right extension work body 11R is located on the right side of the central work body 11 in the direction of travel, can be folded up with the central work body 11, and is used for plowing work.

[0025] 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 tillage implement 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 a top link pin 201 and a lower link pin 202. These are used to mount the mounting portion 20 to a tractor that tows the tillage implement 1.

[0026] 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 the PTO shaft of the tractor to extract 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.

[0027] 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 portion. The fulcrum portions 25 are provided at both ends of the pipe frame 22, and serve as folding and rotating fulcrums for the left extended working body 11L and the right extended working body 11R. One of the fulcrum portions 25 is rotatably connected to a fulcrum frame 41L protruding upward from the left cover body 4L provided on the left extended working body 11L, and the other fulcrum portion 25 is rotatably connected to a fulcrum frame 41R protruding upward from the right cover body 4R provided on the right extended working body 11R.

[0028] Numeral 3 denotes a soil crushing unit. The 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 unit. The left extended soil crushing unit 3L is rotatably attached to the left extended working body 11L on the left side of the soil crushing unit 3 in the direction of travel, and can be folded together with the left extended working body 11L. 3R is the right extended soil crushing unit. The right extended soil crushing unit 3R is rotatably attached to the right extended working body 11R on the right side of the soil crushing unit 3 in the direction of travel, 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 portions 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 direction of travel 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 direction of travel 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.

[0029] Numeral 32 denotes tillage tines. A plurality of tillage tines 32 are attached around the rotor shaft 31 and the left and right extension-side rotor shafts 31L and 31R, respectively, and are driven by the rotation of the rotor shaft 31 and the left and right extension-side rotor shafts 31L and 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. 33L is the left extension side of the extension side dog clutch. The left extension side of the extension side dog clutch 33L is provided on the right side of the left extension soil crushing section 3L in the direction of travel, and by engaging with the center side of the dog clutch 33, It forms the dog clutch on the left side of the vehicle. 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 direction of travel, and by engaging with the center side of the dog clutch 33, This forms the dog clutch on the right side in the direction of travel. The dog clutch turns on and off the rotational drive of the rotor shaft 31, the left extension rotor shaft 31L, and the right extension rotor shaft 31R.

[0030] The reference numeral 34 denotes a holding portion. The holding portion 34 is a bearing portion for the rotor shaft 31, and is provided below 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 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 dog clutch 33R at the bottom of the right cover body 4R (described later). The holding portion 34, the left extension side holding portion 34L, and the right extension side holding portion 34R each have a bearing and an oil seal therein.

[0031] 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, left cover body 4L and right cover body 4R prevent the soil crushed or tilled by the soil crushing section 3 and extended soil crushing section left 3L and extended soil crushing section right 3R from scattering to the surrounding area. The left fulcrum frame 41L is a member that protrudes upward to attach the left extension working body 11L of the tillage implement 1 so that it can rotate freely relative to the fulcrum part 25, and is an arm that is integrated with the left cover body 4L. The right fulcrum frame 41R is a member that protrudes upward to attach the right extension body 11R of the tillage implement 1 so that it can rotate freely relative to the fulcrum part 25, and is an arm that is integrated with the right cover body 4R.

[0032] 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 positioned 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 the two end portions of the front part of the cover body 4. The lower part of the support member 43b is located below the lower end portion of the cover body 4, and the second mounding body 43 is attached to the lower part of this support member 43b.

[0033] Reference numeral 45 denotes a front cover. The front cover 45 is positioned forward of the front ends of the cover body 4, the left cover body 4L, and the right cover body 4R. Furthermore, the lower end of the front cover 45 is positioned below the front ends of the cover body 4, the left cover body 4L, and the right cover body 4R. In this embodiment, the front cover 45 is positioned in front of the cover body 4. The front cover 45 prevents mud and other debris 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 placing the tillage implement 1 on a stand (not shown). The stand brackets 46 are arranged at both ends of the front 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-piling body. The rear soil-piling body 47 is a plate-shaped member located rearward of the rotor shaft 31 and the left and right extension-side rotor shafts 31L and 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-piling body 47 slopes downward toward the dog clutch center 33, and is located below the dog clutch center 33 in a front view. The rear soil-piling body 47 is located at the rear of the direction of travel of the tillage implement 1, and as the tillage implement 1 travels, it performs soil-piling work by pushing soil that passes near the left extension-side holding portion 34L and the right extension-side holding portion 34R toward the dog clutch center 33.

[0034] The first mounding body 42 is located in front of the soil crushing section 3 and below the cover body 4, and has a surface located on one side of the width of a rut formed in the field by the traveling machine body, the harrowing implement 1, that slopes rearward as it moves outward relative to the width of the machine body. The first mounding 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 piling body 42, and as the tillage implement 1 moves, the soil that comes into contact with it is sent sequentially along this first working surface 42a toward the rear and the groove, performing piling work. The upper and lower ends of the first working surface 42a are curved forward, preventing the pushed-out soil from going over this curved portion and efficiently sending it toward the groove.

[0035] The second mounding 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 rut is inclined rearward as it moves inward 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 harrowing implement 1 than the first mounding body 42. The first mounding body 42 and the second mounding body 43 are installed opposite each other across the width of a rut formed in the field by the tillage implement 1, which is a traveling machine body. 43a is a second working surface. The second working surface 43a is provided on the surface of the second soil-piling body 43, and as the tillage implement 1 moves, the soil that comes into contact with it is sent sequentially along this second working surface 43a toward the rear and the groove, thereby carrying out soil-piling work. The upper and lower ends of the second working surface 43a are curved forward, which prevents the pushed-out soil from going over this curved portion and ensures that it is sent efficiently toward the groove.

[0036] The third soil-collecting 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 rut. The surfaces of the third soil-collecting body 44, which are located on the outer sides of the second soil-collecting body 43 on the left and right in the direction of travel, are inclined rearward as they move inward relative to the width of the harrowing 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 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 extending downward as a support member. The first mounding body 42, the second mounding body 43 and the third mounding body 44 are installed opposite 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 a third working surface. The third working surface 44a is provided on the surface of the third piling body 44, and as the tillage implement 1 moves, the soil that comes into contact with it is sent sequentially along this third working surface 44a toward the rear and the tread groove, performing piling work. The third working surface 44a is oriented slightly downward compared to the first working surface 42a and the second working surface. That is, as can be seen 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 terms of the vertical inclination component. As can be seen from Fig. 8, the third action surface 44a is inclined downward relative 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 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 ruts, it can be sent below the field surface as it moves backward and toward the ruts. Therefore, the soil that has moved along the third operating surface 44a is prevented from floating up to the field surface, so the ruts can be filled in while leveling the field without disturbing it.

[0037] The area of ​​the second action surface 43a of the second soil-piling body 43 is smaller than the area of ​​the first action surface 42a of the first soil-piling body 42, and the area of ​​the third action surface 44a of the third soil-piling body 44 is smaller than the area of ​​the second action surface 43a. The area of ​​the second working surface 43a of the second mounding body 43 is smaller than the area of ​​the first working surface 42a of the first mounding body 42, and 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. 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.

[0038] 4, which shows a bottom view, α is a first angle of the first mounding body 42. The first angle α is an angle of the first mounding body 42 with respect to the direction of travel. Similarly, β is the second angle of the second mounding body 43. The second angle β is the angle of the second mounding body 43 with respect to the direction of travel. Similarly, γ is the third angle of the third mounding body 44. The third angle γ is the angle of the third mounding body 43 with respect to the direction of travel.

[0039] In a plan view or a bottom view, the third angle γ, which is the angle between the traveling direction and the third action surface 44a, is larger than the second angle β, which is the angle between the traveling direction and the second action surface 43a, and the first angle α, which is the angle between the traveling direction and the first action surface, is larger than the third angle γ, which is the angle between the traveling direction and the third action surface 44a. In other words, the first angle α, the second angle β, and the third angle γ are set to be mutually different angles.

[0040] 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 from the first mounding body 42 in the direction of travel. Normally, the first mounding body 42 is Although protruding in the row direction provides a better backfilling effect, the first mounding body 42 cannot protrude in the direction of travel to avoid contact with the tractor tires or crawlers when the three-point link moves up and down.

[0041] The front end of the third soil-removing body 44 is located rearward of the front end of the first soil-removing body 42. In order to capture the flow of soil that overflows from the second soil-removing body 43, the third soil-removing body 44 is installed some distance rearward of the second soil-removing body 43. If the third soil-removing body 44 is installed too far forward of the second soil-removing body 43, the gap between the second soil-removing body 43 and the third soil-removing body 44 will become narrow, and the flow of soil passing through this gap will be 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 located near the center of the cover body 4 in the width direction of the machine body, and the second and third mounding bodies 43, 44 are located at the ends of the cover body 4 in the width direction of the machine 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.

[0042] The first mounding body 42 is attached to a support member 42b arranged facing downward from the attachment part 20 for attachment 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 mounding body 43 and the third mounding 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 section. The holding section 34 is located behind the third mounding body 44 and holds the rotation shaft of the soil crushing section 3. The holding section 34 is attached to the lower part of each of the transmission case 23 and the support frame 24.

[0043] A ground leveling body 5 is attached to the rear of the cover body 4 at the rear of the direction of travel of the tillage implement 1 during operation. The ground leveling body 5 levels the field as the implement travels. 5L is a left ground leveling body. 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 direction of travel during work. 5R is the right leveling body. The right leveling body 5R is attached to the rear of the right cover body 4R and constitutes the right end of the leveling body 5 in the direction of travel during work.

[0044] Reference numeral 51 denotes a first soil leveling body. As shown in Figure 2, which is a plan view of the plow farming implement 1 according to an embodiment of the present invention, the first soil leveling body 51 levels the ground forward of the rear end of the plow farming implement 1. A left first soil leveling body 51L is located at the left end of the first soil leveling body 51 in the direction of travel, and a left first soil leveling body 51R is located at the right end in the direction of travel. 512 is a fulcrum axis. Reference numeral 52 denotes a hinge. The hinge 52 is attached via a fulcrum shaft 512 as a pivot point for vertical rotation of the first leveling body 51, the left first leveling body 51L, and the left first leveling body 51R of the leveling body 5 relative to the cover body 4, the left cover body 4L, and the right cover body 4R.

[0045] A second soil leveling body 56 is provided. As shown in Fig. 2, which is a plan view of the tillage implement 1, the second soil leveling body 56 levels the ground at the rear end side of the first soil leveling body 51 attached to the implement 1. The left second ground leveling body 56L levels the area behind the left cover body 4L located on the left side in the traveling direction. The right second ground leveling body 56R levels the area behind the right cover body 4R located on the right side in the traveling direction. Reference numeral 562 denotes a rotation fulcrum. The rotation fulcrum 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 enables the second ground leveling body 56, the left second ground leveling body 56L, and the right second ground leveling body 56R to rotate 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.

[0046] As shown in Table 1, the working surface areas of the first, second, and third mounders 42, 43, and 44 decrease in both forward projected area and actual area in the following order: first mounder 42 > second mounder 43 > third mounder 44. The first mounder 42 has the largest forward projected area and actual area, resulting in a large amount of soil capture and a high soil-accumulating effect at low speeds. The second mounder 43, while smaller in both forward projected area and actual area than the first mounder 42, offers little resistance to the soil pushing in from the direction of travel and can move efficiently along the second working surface 43a, resulting in a high soil-accumulating effect at high speeds. The third mounder 44 assists the second mounder 43 in mounding at high speeds, capturing soil and mud spilling from the front of the second mounder 43 to the sides of the third mounder 44 and moving it toward 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.

[0047] The reason why the active area of ​​the second mounding body 43 is smaller than that of the first mounding body 42 in both the forward projected area and the actual area will be explained below. Simply put, if the second mounding body 43 is placed symmetrically across the width of the rut from the first mounding body 42, the amount of soil movement increases, and the soil in the backfilled rut may pile up, especially when the working speed of the tillage implement 1 is increased. To prevent this, the active area of ​​the second mounding body 43, which is placed symmetrically across the width of the rut from the first mounding body 42, is made small in both forward projected area and actual area, and the amount of soil to be backfilled in the rut is adjusted.

[0048] The reason why the active area of ​​the third mounding body 44 is smaller than the active area of ​​the second mounding body 43 in both the forward projected area and the actual area as shown in Table 1 will now be explained. When the working speed of the tillage 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. Because the third mounding body 44 serves as an auxiliary to 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 projected area and actual area. Conversely, if the area is increased, more soil will be required to fill back into the rut, which can lead to the disadvantage of forming ruts.

[0049] The area of ​​the working surface of the first mounding body 42 and the total area of ​​the working surfaces of the second mounding body 43 and the third mounding body 44 are similar 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 (described below) and the arrangement of each piler, it is possible to achieve optimal pile-up effects even at different speed ranges.

[0050] The size of the first mound 42 will be described. Although the first mounding body 42 can move a large amount of soil, the efficiency of the soil movement may be poor due to the large first angle α (described later) as the mounding body advances, which changes direction toward the ruts, i.e., in the width direction. Specifically, when soil collides with the first working surface 42a of the first mounding body 42 from the front of the moving body, some of the soil tends to escape upward. To receive this soil, the area of ​​the first working surface 42a of the first mounding body 42 is increased, especially toward the top.

[0051] The shape of the first mound 42 will now 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 rut. Furthermore, the upper end of the first working surface 42a is inclined downward 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 longer lateral movement distance. 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 shorter lateral movement distance, so the soil moves toward the rut side before moving upward. Therefore, even if the rut side, i.e., the inner upper end, is inclined downward, problems with soil movement are unlikely to occur.

[0052] The angles of each acting surface will be described. As described above, the first and second mounders 42 and 43 have different working speeds that they are good at, and the angles are set based on this. By making a large angle with the direction of travel, the first mounding body 42 increases its projected area as seen from the front of the direction of travel, allowing it to mound more soil. In this embodiment, the optimum angle for the first mounding body 42 is 65 degrees, with a preferred angle range of 60 to 70 degrees. If the angle is greater than 70 degrees, soil flow will be poor and the traction resistance of the tillage implement 1 will increase. If the angle is less than 60 degrees, the efficiency of soil movement at low speeds will decrease.

[0053] The angle of the second mounding body 43 with respect to the direction of travel 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 a consideration to improve soil flow even when the traveling speed increases. As the traveling speed of the tillage 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 soil flow compared to the first mounding body 42. In other words, at high speeds, the second mounding body 43 can move a greater 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 usual speed during plow work is about 1 to 3 km / h, and the working speed in this embodiment is 1 to 5.5 km / h.

[0054] As shown in Table 1, the third mounding body 44 has a small area both in terms of forward projection area and actual area, and therefore has a slightly larger angle compared to the second mounding body 43 to ensure a sufficient front projection area. In this embodiment, the optimum angle is 50 degrees, with a preferred angle range of 45 to 55 degrees. The third mounding body 44 allows the soil and soil clods to be sent to the soil crushing unit 3 without passing near the transmission case 23 and support frame 24, which are parts of the tillage tine rotation area, and the holding unit 34 attached to these that holds the soil crushing unit. This prevents a decrease in tilling performance due to poor soil and soil clod crushing.

[0055] To avoid interference with the traveling machine body located in front, the tips of the first, second and third mounding bodies 42, 43 and 44 are set so as not to protrude forward from the tip of the mounting part 20. In addition, because the tips of the first, second and third mounding bodies 42, 43 and 44 protrude forward from the front end of the cover body 4, it is possible to finish moving the soil before it reaches the rotation range of the tillage tines 32, improving soil crushing performance.

[0056] The stand bracket 46 will now be described. The stand bracket 46 is a holding member for attaching a stand (not shown) that allows the tiller to rest on the ground when stored. In particular, when the extension working unit is stored in a folded state, the center of gravity becomes higher, so to ensure stability when the tiller is resting on the ground, it is best to install the stand as wide as possible across the width of the machine. In this embodiment, stability is ensured by installing the stand at the end of the cover body 4 in the front part of the transmission case 23 and support frame 24. [Table 1] [Explanation of symbols]

[0057] 1. Plowing machine 11 Central working body 11L Extension Work Unit (Left) 11R Extended Working Body (Right) 2 frames 20 Mounting part 201 Top link pin 202 Lower link pin 21 Input Cases 211 Input shaft 212 Topmast 213 Lower Plate 22 Pipe Frame 23 Transmission case 24 Support Frame 25 Fulcrum 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 Extension dog clutch (left extension 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 fulcrum frame 42 First mound 42a 1st working surface 42b Support member of first mound 43 Second earth pile 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 Fulcrum Axis 52 Hinge 56 Second leveling body 562 pivot point α First angle (first mound) β Second angle (second mound body) γ Third angle (third mound

Claims

1. The plowed field is provided with a plow body that gathers soil across the width of a rut formed in the field by the plowed field machine, which is a traveling machine body. The earth-removing bodies arranged on both sides of the width of one rut are different from each other in either area or shape and are positioned offset from each other in the direction of travel. This is a tillage machine characterized by the following.

2. 2. The tillage implement according to claim 1, wherein the plurality of mounding bodies have different characteristics of mounding effect.

3. The characteristics of the soil-piling effect of multiple pilers vary depending on the speed range.

2. The tiller according to claim 1, wherein:

4. The plurality of soil-retaining bodies are arranged with their positions shifted in the left-right direction.

3. The tiller according to claim 2, wherein:

5. Each of the plurality of mounds has a different inclination angle.

3. The tiller according to claim 2, wherein:

6. The characteristic of the soil-packing effect is the amount of soil captured.

3. The tiller according to claim 2, wherein:

7. The characteristic of the soil-packing effect is the resistance of the soil.

3. The tiller according to claim 2, wherein:

8. The characteristic of the soil-packing effect is the soil movement efficiency.

3. The tiller according to claim 2, wherein:

9. The characteristic of the soil-reducing effect is the amount of soil that is moved.

3. The tiller according to claim 2, wherein:

10. The characteristics of the soil-raising effect are due to the velocity, 3. The tiller according to claim 2, wherein:

11. Each of the plurality of mounds has a different active area.

3. The tiller according to claim 2, wherein:

12. The plurality of soil-removing bodies are arranged on one side of a width of a rut formed by a traveling vehicle body, and a first soil-removing body that moves soil toward the rut; A second mounding body arranged opposite to the first mounding body on the other side across the width of one rut; The tilling implement according to any one of claims 1 to 11, comprising:

13. The first mounding body is located rearward of the second mounding body. The tiller according to claim 10, characterized in that

14. The first and second mounders do not protrude forward from a mounting portion that is attached to a tractor. The tiller according to claim 12, characterized in that

15. The first and second soil-piling bodies have different soil-piling areas. The tiller according to claim 12, characterized in that

16. The area of ​​the second earth-collecting body that collects soil is smaller than the area of ​​the first earth-collecting body that collects soil. The tiller according to claim 15,

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