JP7153353B2 - Puddling machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural work machine that is used by being attached to a tractor, and relates to a work machine that rotates a tillage rotor provided with a plurality of tillage tines for tillage. Specifically, it relates to an auxiliary cover provided in front of a tillage cover that covers the upper part of the tillage rotor.

BACKGROUND ART Patent Document 1 discloses a puddling machine mounted on a traveling vehicle that levels soil by backfilling ruts formed in a traveling portion of the traveling vehicle. In this puddling machine, soil is backfilled in the rut by a mulching plate, which is an auxiliary leveling means, provided between the wheels of the tractor, which is a traveling vehicle, and the soil crushing unit. After that, the soil is crushed and leveled in the earth crushing section and leveling section located behind the soil baffle plate.

JP 2012-39981 A

Now, let us assume that the rut ditch is backfilled with soil as it advances forward using the soil gathering plate of Patent Document 1. Large ruts in the soil after the mulching board has passed are smoothed out to some extent, but unevenness is still formed on the soil surface due to unmovable lumps of soil, contaminants, and the like. For this reason, even if the soil is crushed by the soil crushing portion positioned behind the soil baffle plate, unevenness remains on the surface of the crushed soil. In addition, even if leveling is performed at the leveling section located behind the crushed soil section, there is a problem in that leveling is not finished due to the degree of unevenness of the soil formed immediately before the leveling section. In addition, since the soil surface before crushing without ruts also has unevenness, it may not be leveled in the same manner as described above. In order to further improve the degree of leveling in the leveling section behind the crushed soil section, it is necessary to level the soil immediately before the crushed soil section to some extent.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a puddling machine capable of improving leveling accuracy.

In order to achieve the above object, one aspect of the present invention is a crushed earth section that can be driven to rotate; a cover body that covers the upper part of the crushed earth section; a front cover that is long in the lateral width direction with respect to the direction of travel and is capable of contacting the mud located below; and an end cover having one end close to the left and right ends of the center cover and the other end inclined toward the crushed earth section as it goes outward with respect to the traveling direction. The gist is that it is a puddling machine.

According to the present invention, it is possible to provide a puddling machine capable of improving leveling accuracy.

1 is a front view of a working state of a puddling work machine showing an embodiment, viewed from the front side in the traveling direction; FIG. It is a side view of the work state of the puddling work machine which shows embodiment. It is a top view of the work state of the puddling work machine which shows embodiment. Fig. 2 is a cross-sectional side view showing an enlarged cross-section of a second shredder and a front cover of the puddling machine showing the embodiment; Fig. 2 is a cross-sectional side view showing an enlarged cross-section of a first shredder and a front cover of the puddling machine showing the embodiment;

An embodiment of the present invention will be described with reference to the drawings. In the description, the left side shown in FIG. 2 is the front side with respect to the direction of travel, the right side is the rear side with respect to the direction of travel, the lower side is the lower side of the fuselage, and the upper side is the upper side of the fuselage. In addition, the upper side shown in FIG. 3 will be described as the right side in the direction of travel, and the lower side as the left side in the direction of travel. Also, the left side shown in FIG. 5 will be described as the rear side with respect to the traveling direction, and the right side as the front side with respect to the traveling direction. In the description of the drawings, the same or similar parts may be denoted by the same or similar reference numerals, and descriptions thereof may be omitted. In addition, the drawings used for explanation are schematic, and the relationship with the dimensions of each part may differ from the actual one. Moreover, the technical idea of the present invention can be modified in various ways within the technical scope defined by the claims.

An outline of the puddling machine 1 will be described. The puddling machine 1 is attached to a three-point link mechanism, which is an elevating link provided at the rear of a tractor (not shown) which is a traveling body, and is used for soil crushing work and puddling work. The puddling machine 1 is provided with a frame 2 having a mounting part 20, and the puddling machine 1 can be moved up and down by connecting the mounting part 20 and a three-point link mechanism. Further, the puddling machine 1 obtains power output from the tractor to rotationally drive the soil crushing unit 3 positioned below the frame 2 . This earth crushing unit 3 has a plurality of claws 32 on a rotor shaft 31 that rotates on a horizontal axis perpendicular to the advancing direction. By rotating the claws 32 as the tractor advances, the soil can be crushed.

A cover body 4 is provided above the crushed earth part 3 to cover the upper part of the crushed earth part 3 to prevent the soil from scattering to the surroundings during earth crushing. A front cover is attached to the front of the cover body 4 so that the soil in front of the crushed soil section 3 can be leveled.

A ground leveling body 5 is provided at the rear end of the cover body 4 so as to be vertically rotatable. After the soil is leveled, the puddling work is carried out. Further, the ground leveling body 5 is composed of a first ground leveling body 51 that rotates up and down at the rear end of the cover body 4 and a second ground leveling body 56 that rotates up and down at the rear end of the first ground leveling body 51 . It is The first ground leveling body 51 and the second ground leveling body 56 can work together to evenly level the soil and mud after the ground has been crushed by the soil crushing unit 3 .

The puddling machine 1 to be described includes a central working body 11 and extended working bodies 11L and 11R connected to both ends of the central working body 11. As shown in FIG. The extension working bodies 11L and 11R can be transformed into working states and retracted states by rotating around fulcrum portions 25 provided at both ends of the frame 2 provided in the central working body 11. be. The working state is a state in which the working width of the central working body 11 is expanded so as to extend the working width to perform puddling work. It is a state in which the body width is shortened by rotating it so as to position it.

Details of the puddling machine 1 will be described. The frame 2 is a part forming the skeleton of the central working body 11 of the puddling machine 1, and includes a mounting portion 20, an input case 21, a pipe frame 22, a transmission case 23, and a support frame 24.

The mounting portion 20 is provided at the front central portion of the puddling machine 1 and is composed of a top link pin 201 at the center of the upper portion and a pair of lower link pins 202 positioned below and to the left and right of the top link pin 201 . By connecting the top link pin 201 and the lower link pin 202 to a three-point link mechanism (not shown) on the tractor side, the puddling machine 1 is attached to the tractor so that it can move up and down. An input case 21 is provided in the center of the mounting portion 20, and an input shaft 211 protrudes forward. The input shaft 211 is connected to an output shaft (not shown) of the tractor through a universal joint or the like to acquire rotational power output from the tractor. A top mast 212 projects forward and upward from the upper portion of the input case 21, and the top link pin 201 is provided at the upper end of the top mast 212. As shown in FIG. A lower plate 213 is arranged downward from the side of the input case 21, and a lower link pin 202 is attached to this lower plate.

The input case 21 is provided with a pipe frame 22 having one end connected to the input case 21 and projecting to the left and right sides. The pipe frames 22 arranged on the left and right sides are made of round pipes and arranged coaxially. At the other end of either the left or right side of the pipe frame 22, a vertically long transmission case 23 extending downward is provided, and the other end of the pipe frame 22 on the other side extends downward. A vertically elongated support frame 24 is positioned. A crushed earth part 3 is provided under the frame 2 so as to bridge the lower end parts of the transmission case 23 and the support frame 24, respectively.

The crushed earth section 3 is a member having a rotor shaft 31 and claws 32 and is supported under the pipe frame 22 between the lower end of the transmission case 23 and the lower end of the support frame 24 . The rotor shaft 31 is a rotatable shaft mounted under the transmission case 23 and the support frame 24 . A large number of claws 32 are radially attached to the rotor shaft 31 at regular intervals in the circumferential and axial directions. The rotor shaft 31 and the claws 32 are integrated to constitute the earth crushing section 3 . The earth crushing unit 3 acquires rotational power output from the tractor at the input shaft 211 and is transmitted to the rotor shaft 31 through the input case 21 and the transmission case 23 to be rotationally driven. This rotary drive crushes the soil.

The crushed earth unit 3 receives power input from the input shaft 211 and is rotationally driven. The power input from the input shaft 211 is decelerated by the gears inside the input case 211, and passes through the pipe frame 22 (the left side in the traveling direction in FIGS. 1 and 3) projecting laterally on one of the left and right sides. It is transmitted into the transmission case 23 by an output shaft (not shown). By arranging transmission members (not shown) such as chains and sprockets in the transmission case 23, the power of the tractor is transmitted to the crushed earth section 3, and the crushed earth section 3 is rotationally driven. In the embodiment shown in FIG. 2, the crushed soil unit 3 is illustrated as rotating counterclockwise on the paper surface so that the front side, which is uncultivated land, is cut down, but it is configured to rotate clockwise, which is an upcut. Also good.

A cover body 4 is provided on the upper part of the crushed earth part 3 so as to be along with the rotating outer circumference of the claw 32 and to be spaced apart. The cover body 4 has left and right side ends attached to the transmission case 23 and the support frame 24 . By covering the upper portion of the crushed earth section 3 with the cover body 4 in this way, the tilled soil scattered from the crushed earth section 3 side is prevented from scattering upward.

Here, a mechanism for changing the body width of the puddling machine 1 between the working state and the stored state will be described. At both ends of the cover body 4 and the crushed earth section 3, members similar to those of the cover body 4 and the crushed earth section 3 are provided as extension working bodies 11L and 11R, extending in the width direction orthogonal to the traveling direction. A left cover body 4L and a left crushed soil section 3L, which are extension working bodies 11L positioned on the left side in the direction of travel, and a right cover body 4R and a right crushed soil section, which are extension work bodies 11R positioned on the right side in the direction of travel. 3R are arranged respectively. Since both the left extension work body 11L and the right extension work body 11R have a symmetrical structure, they are explained in common.

The extended crushed earth parts 3L and 3R in the working state with the body width expanded are located on the same straight line on the left side of the traveling direction of the crushed earth part 3 located in the center in the working state. The extended crushed earth parts 3L, 3R have extension side rotor shafts 31L, 31R and claws 32, like the crushed earth part 3 of the central working body. Claws 32 are radially arranged on the rotor shafts 31L and 31R at regular intervals in the axial direction, and soil crushing work can be performed by obtaining rotational power. The power is obtained through a dog clutch arranged at the end of the soil crushing section 3 of the central working body 11, or is provided to the extended working bodies 11L and 11R from a transmission shaft transmitted from the input case 21 of the central working body 11. It is transmitted to a side transmission case (not shown).

When power is obtained through the soil crushing unit 3 of the central working body 11, which is the embodiment, the left end of the rotor shaft 31 of the soil crushing unit 3 is passed through the transmission case 23 or the support frame 24, and this end A dog clutch 33 is provided integrally with the rotor shaft 31 . This dog clutch 33 is engaged with extension side dog clutches 33L, 33R arranged on the central working body 11 side of the extension side rotor shafts 31L, 31R of the extension side rotor shafts 31L, 31R, and the rotational power is transferred to the extension side crushed soil sections 3L, 3R. be transmitted to The extension-side crushed earth parts 3L and 3R that have obtained rotational power in this way are capable of crushing earth.

Although not shown, when power is obtained from the input case 21 of the central working body 11 , the transmission shaft output from the input case 21 is passed through the side of the transmission case 23 or the support frame 24 . A dog clutch is provided at the end of this transmission shaft. The extension work bodies 11L and 11R are provided with side transmission cases 23L and 23R. A dog clutch is engaged with the transmission shaft of the central work body 11 on the upper part of the case, so that the soil crushing parts 3L and 3L of the extension work bodies 11L and 11R are engaged. Drive 3R.

Extension cover bodies 4L and 4R are provided to cover the upper and lateral sides of the extended crushed soil sections 3L and 3R. Both ends of the extended crushed earth parts 3L, 3R are rotatably supported by bearings installed on side plates provided on the left and right sides with respect to the traveling direction of the extended cover bodies 4L, 4R. Further, the extended cover bodies 4L and 4R prevent mud and soil from scattering upward and laterally when the soil is crushed by the extended soil crushing units 3L and 3R.

Support point frames 41L and 41R are provided upward at the end of the extended cover body 4L on the side of the central working body. The fulcrum frames 41L, 41R are rotated upward together with the extended crushed earth parts 3L, 3R and the extended cover bodies 4L, 4R to rotate the extended crushed earth parts 3L, 3R and the extended cover bodies 11L, 11R. The bodies 4L, 4R can be switched between a working state and a retracted state.

The upper ends of the fulcrum frames 41L and 41R are connected to the fulcrum portions 25 provided on the upper side ends of the pipe frames 22 arranged on the left and right sides of the input case 21, respectively. The axis of the fulcrum 25 is parallel to the traveling direction, and the front side is directed slightly upward and obliquely. The extended crushed earth parts 3L and 3R and the extended cover bodies 4L and 4R, which are the extension work bodies 11L and 11R, are each expanded sideways to expand the work width, and are reversed 180 degrees upward to perform the central work. The body 11 can be transformed into a retracted state positioned above the crushed earth part 3 and the cover body 4 . The entire width of the puddling work machine 1 in the stored state can be shortened. Further, since the extension side dog clutches 33L, 33R of the extension crushed earth parts 3L, 3R in the retracted state are disengaged from the center side dog clutch 33, the extension crushed earth parts 3L, 33R cannot be rotationally driven. With the above-described configuration, the puddling work machine 1 can be changed between a working state in which the body width is expanded and a stored state in which the body width is folded.

In front of the cover body 4 of the central working body 11, a mulching body 42 made of a plate-like body is provided. The mulching body 42 is positioned in the central portion of the cover body 4, and includes a first mulching body 42a that is inclined toward the crushed earth section 3 from the central side of the cover body 4 toward the outer side in the traveling direction, and the first A second mulching body 42b is located on the outer side of the moving direction from the mulching body 42a and is inclined toward the crushed earth section 3 side from the outer side of the moving direction to the central side of the cover body 4. Two sets of shoveling bodies 42 are provided in front of the cover body 4, and the shoveling bodies 42 incline toward the recess of the rut formed by the traveling machine body positioned in front of the central working body 11 as the machine body advances. Soil is guided by the flattened plate surface.

The first shoveling body 42a is provided at the lower end of a support member 43a extending downward from the lower plate 213 and extending in the vertical direction. Further, the second earth gathering body 42b is provided at the lower end portion of a support member 43b extending downward from the lower end portion on the front side of the cover body 4 and extending in the vertical direction. The first shoring body 42a and the second shoring body 42b are located below the lower end portion of the front side of the cover body 4 .

The shovel body 42 is provided in a V-shape with its bottom spreading toward the front side in a plan view, and is positioned on the side of a single rut to backfill the rut formed by the traveling machine body. Further, since the earth gathering body 42 is located below the lower end of the cover body 4, most of the plate surface is located in the soil. Therefore, as the traveling body advances, more soil can be moved toward the rut and the rut can be backfilled.

A front cover 45 is arranged in front of the cover body 4 of the central working body 11 and behind the earth gathering body 42 . The front cover 45 hangs down from the front lower end of the cover body 4 and has a central cover 45a and end covers 45b. The central cover 45a and the end covers 45b are rectangular plates elongated in the horizontal direction with respect to the traveling direction. Also, the material of the central cover 45a and the end cover 45b is made of an elastic body and has flexibility. In the working state, the lower ends of the central cover 45a and the end covers 45b have rectangular plates whose heights are set so that they can come into contact with the soil.

The central cover 45a is positioned between the two first mulching bodies 42a provided in the front central portion of the cover body 4. As shown in FIG. The plate surface of the central cover 45a is directed in the direction of travel, and the lower end side is attached so as to incline toward the crushed earth section 3 as it goes downward. Further, since the central cover 45a is attached to the cover body 4 via the mounting member 46a formed by bending a plate-like member, the central cover 45a can be configured integrally with the mounting member 46a, and can be attached to and detached from the cover body 4. can be easily done.

The end covers 45b are provided so as to extend both ends of the center cover 45a outward in the traveling direction. The end cover 45b is provided from the rear part of the first mulching body 42a to the rear part of the second mulching body 42b. The plate surface of the end cover 45a faces outward with respect to the traveling direction, and is attached so that the lower end side inclines toward the crushed earth section 3 as it goes downward. That is, two end covers 45b are provided at the front of the cover body 4, and are provided in a V-shape with a hem widening rearward in a plan view. Further, since the end cover 45b is attached to the cover body 4 via the attachment member 46b formed by bending a plate-like member, the end cover 45b can be configured integrally with the attachment member 46b. Easy to put on and take off.

The central cover 45a is attached so as to be positioned forward of the lower end of the front side of the cover body 4 . Even if the lower end portion of the center cover 45a having flexibility bends backward and obliquely upward, it is set at a position where the tillage tines 32 do not come into contact with it due to the rotary drive of the soil crushing unit 3. As shown in FIG.

The end of the end cover 45b on the side of the central cover 45a is attached so as to be located forward of the lower end of the front side of the cover body 4. As shown in FIG. The end portion of the end cover 45b located on the outside with respect to the traveling direction is located below the lower end of the cover body 4 on the front side. The lower end of the flexible end cover 45b is set at a position where the tillage tines 32 do not come into contact with it due to the rotary drive of the crushed soil unit 3 even if the lower end is bent obliquely backward and upward.

Here, the action and effect of the front cover 45 will be described. First, two ruts are formed by the traveling part in the soil after the traveling body has passed. In order to backfill these two ruts, the first mulching body 42a and the second mulching body 42b are positioned so as to sandwich the respective ruts from the left and right sides in the traveling direction in a V shape. By advancing the traveling machine body, the soil on the side of the rut is moved toward the rut along the rearwardly inclined plate surfaces of the first mulching body 42a and the second mulching body 42b.

When the same point of the soil is used as a reference, the front cover 45 passes immediately after the first shovel 42a and the second shovel 42b pass as the puddling machine 1 moves forward. Although the lines of the ruts are refilled by the first mulching body 42a and the second mulching body 42b, the soil surface after filling the ruts and the original soil surface are uneven and rough. The unevenness of the soil surface is smoothed out by the front cover 45 located behind the earth gathering body 42 before the crushed earth section 3 passes through.

Of the front cover 45 provided in front of the cover body 4, the center cover 45a located in the center part has unevenness formed by the soil overflowing inward from the front part of the first earth gathering body 42a, and originally existing. It is possible to level the unevenness of the soil. The central cover 45a is attached such that its lower portion is inclined backward as it goes downward when viewed in a direction perpendicular to the traveling direction, and the lower portion contacts the soil surface during work. When the lower portion of the central cover 45a comes into contact with the soil surface, the portion protruding upward from the soil surface can be pressed down and pressed downward on the soil.

In addition, since the central cover 45a is composed of a flexible elastic member, the convex portion of the soil surface that is too large, such as a lump of soil that cannot be leveled by the central cover 45a, can be overcome while bending backward and obliquely upward. be able to. Also, at least muddy soil moves to either the left or right side along the front surface of the central cover 45a. Therefore, it is possible to introduce soil into the crushed earth section 3 and to discharge excess mud to the side without constantly pushing a large lump of earth in front of the central cover 45a.

The end cover 45b, which has one end close to the left and right ends of the central cover 45a, is filled with the soil that has moved laterally along the front surface of the central cover 45a and the first earth-shredding body 42a and the second earth-shredding body 42b. It is possible to even out the irregularities on the top surface of the restored rut. The end cover 45b is attached such that its lower portion is inclined rearward as it goes downward when viewed in a direction perpendicular to the traveling direction, and the lower portion contacts the soil surface during work. When the lower portion of the end cover 45b comes into contact with the soil surface, the portion protruding upward from the soil surface can be pressed down and pressed downward into the soil.

In addition, since the end cover 45b is made of a flexible material, the convex portion of the soil surface that is too large, such as a lump of soil that cannot be leveled by the end cover 45b, is bent backward and obliquely upward. can be avoided.

Furthermore, since the end cover 45b is slanted backward so that the other end, which is the outer end, approaches the crushed soil section 3 as it goes to the outer side with respect to the traveling direction, the soil moved from the central cover 45a At the same time, the soil that cannot be evenly treated by the end cover 45b can be moved toward the outer end along the front surface of the end cover 45b. Therefore, the soil located in front of the puddling machine 1 can be crushed by the crushing section 3 without continuously pushing a large lump of earth in front of the central cover 45a.

The other end of the end cover 45b is positioned inside the transmission case 23 or the support frame 24 behind the second shovel 42b. The transmission case 23 and the lower end of the support frame 24 are members that sink into the soil, and these alone do not have the ability to till and crush soil or level the ground. Therefore, the soil immediately after the transmission case 23 and the support frame 24 have passed may be slightly rutted. Therefore, by supplying soil from the other end of the end cover 45a in advance to the portion immediately before the transmission case 23 and the support frame 24 in the traveling direction, the formation of ruts can be minimized.

With the front cover 45 configured in this way, the soil just before the crushed soil section 3 passes through can be leveled in advance. By crushing the soil in the crushing unit 3 after pre-leveling, unevenness of the soil formed after crushing can be reduced compared to a state without pre-leveling. In addition, since the lower end of the front cover is in contact with the ground, it is possible to prevent soil from being scattered forward by the crushed soil unit 3 together with the cover body 4 . Since the soil does not scatter on the traveling machine body positioned in front of the puddling machine 1, maintenance such as cleaning can be easily performed.

At the rear end of the cover body 4, a leveling body 5 is provided so as to hang down rearward and downward. Similarly, ground leveling bodies 5L and 5R are provided so as to hang rearward and downward from the rear ends of the cover bodies 4L and 4R of the left and right working bodies. In addition, since the ground leveling bodies 5L and 5R are attached to the cover bodies 4L and 4R, respectively, when the puddling machine 1 is changed to the working state and the storage state, the cover bodies 4L and 4R on the extension side and the crushed soil section on the extension side It rotates together with 3L and 3R.

The ground leveling body 5 includes a first ground leveling body 51 and a second ground leveling body 56 . The left and right ground leveling bodies 5L and 5R are similarly provided with first ground leveling bodies 51L, 51R and second ground leveling bodies 56L, 56R. The first ground leveling member 51 has a plate 511 whose left and right widths are set to approximately the same width as the cover member 4, and is curved and bent in an S shape as shown in FIG. The first leveling body 51 is vertically rotatable by a plurality of hinges 52 arranged at the front end or upper end. The rotation fulcrum axis of the hinge 52 is directed left and right in the traveling direction and is parallel to the axis of the rotor shaft 31 . Therefore, the lower side of the first ground leveling body 51 can be rotated away from or closer to the rotational diameter of the claw 32 .

Since the first leveling body 51 is arranged so as to cover the rear of the crushed earth section 3, it prevents the soil crushed by the crushed earth section 3 from scattering backward. In addition, the first leveling body 51 during the earth-breaking work rotates upward and grounds the surface of the first leveling body 51 on the side of the earth-breaking section 3, thereby leveling the soil after the earth-breaking in the earth-breaking section 3. level the ground.

A second ground leveling body 56 is attached to the rear end of the first ground leveling body 51 so as to be vertically rotatable. Similarly, second ground leveling bodies 56L and 56R are attached to the rear ends of the left and right first ground leveling bodies 51L and 51R so as to be vertically rotatable. The second ground leveling body 56 is a member elongated in the width direction with respect to the direction of travel, and a rotation fulcrum 562 is attached to the fulcrum shaft 512 at the rear end portion of the first ground leveling body 51 so as to be vertically rotatable. During the puddling work, the second leveling body 56, which is in a substantially horizontal state, contacts the crushed soil surface after passing the first leveling body 51 and presses it by its own weight, so that the first leveling body 51 sufficiently levels and The crushed soil surface that could not be leveled is leveled with even higher precision, and the surface after leveling is leveled.

Final soil leveling and leveling is done by the first leveling body 51 and the second leveling body 56 . In addition to this, by leveling the soil before crushing by the crushing unit 3 with the front cover 45 in advance, unevenness that may occur on the surface of the soil after crushing is reduced. As a result, the first leveling body 51 and the second leveling body 56 level the crushed soil with few irregularities, so that more accurate leveling performance can be exhibited. Furthermore, by filling the ruts with the mulching body 42 just in front of the front cover 45, final leveling accuracy can be improved.

The puddling machine 1 configured as described above is provided with the front cover 45 at the front lower end of the cover body 4 positioned in front of the crushed earth section 3, so that the soil and mud can be properly treated and the leveling accuracy can be improved. It is possible to provide a puddling machine that improves Further, in the embodiment, the central working body 11 is provided with the shoring body 42 and the front cover 45. Needless to say, it has the actions and effects described above.

Although the present invention has been described by the above embodiments, the statements and drawings forming part of this disclosure should not be understood to limit the present invention. It goes without saying that modifications to the embodiments, examples, and operational techniques based on this disclosure are possible within the scope of the claims.

INDUSTRIAL APPLICABILITY The present invention can be applied to a work machine that has a crushing section or a plowing section, and a ground leveling body that can rotate vertically at the rear of the crushing section or the plowing section to perform leveling and leveling work.

1. Raking machine 2. Frame 3. Crushing section 4. Cover body 42. Shredder body 42a. First shredder body. 42b. Second shredder body. 45. Front cover. 45a. Center cover.

Claims (2)

a rotatably drivable soil crushing unit;
a cover body covering the upper part of the crushed earth section;
a front cover that is connected to the end on the forward side in the traveling direction of the cover body, has a lower end that can come into contact with the mud located below, and is long in the left and right width directions with respect to the traveling direction;
the front cover includes a center cover provided with a central portion in the width direction of the left and right in a direction orthogonal to the traveling direction;
an end cover having one end placed in close proximity to the left and right ends of the central cover and the other end inclined toward the crushed earth portion toward the outside in the left and right width direction of the front cover;
A puddling machine characterized by comprising: The central cover and the end covers are inclined from above to the crushed soil section side as they go downward,
A mulching body is arranged in front of the end cover,
The puddling machine according to claim 1, characterized in that:

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