Transplanter soil leveling device

Abstract

To surely perform protection of already-planted seedlings in planting by a transplanter and leveling of wheel tracks.SOLUTION: In a transplanter in which a planting work machine having a float 18a that slides on a wheel track D is connected to the rear side thereof, a leveling rotor 5 made of a plurality of rotor members 50 that perform leveling by being in rolling contact with a field surface with a leveling body externally packaged is pivotally supported in the machine body width direction on the front side of the planting work machine and a mud guard cover 38 that covers an upper surface and a back surface of the leveling rotor 5 is provided, a leveling device of the transplanter constitutes the leveling body as mud pull-over means that levels a field surface with the rotation of the rotor and pulls over mud and water on the front surface toward the wheel track D, a drain part 53 which guides and drains the mud and water in the mud guard cover 38 onto the wheel track D is provided at a rear lower position of the mud guard cover 38 between a wheel 7 and the float 18a, and the drain part 53 can be a notch part in which a long hole is formed on the rear surface side of the mud guard cover 38 or the rear lower end is notched.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a ground leveling device for a transplanter that shovels mud when transplanting rice seedlings or the like in paddy fields. [Background technology]

[0002] Conventionally, as disclosed in Patent Document 1 and elsewhere, a paddy field transplanter levels the transplanting field (field surface) by rotating a ground-leveling rotor installed horizontally in front of the planting machine during transplanting operations, and a drainage outlet is provided at the rear end of the rotor's mud guard cover as a means to prevent muddy water from being pushed to the side by the action of the ground-leveling rotor and knocking over or damaging adjacent planted seedlings. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-10493 A (Fig. 3) Summary of the Invention [Problem to be solved by the invention]

[0004] The ground leveling device of Patent Document 1 mentioned above can reduce the amount of water flowing to the side of the rotor by directing the mud and muddy water (hereinafter referred to as "muddy water, etc.") that would have been pushed sideways by the ground leveling rotor from the drain outlet behind the mudguard cover into the space between the floats, thereby preventing already planted seedlings from being pushed over or damaged. However, since the muddy water is concentrated and discharged between the floats at the rear, ground leveling by backfilling with mud corresponding to the width and depth of the wheel tracks is insufficient, and a large amount of water concentrates between the rows of seedlings planted behind the floats, preventing the seedlings from maintaining their planting position. [Means for solving the problem]

[0005] The device of the present invention for solving the above problems is a transplanter having a planting implement 3 equipped with a float 18a that slides on the wheel tracks D, connected to the rear, a soil leveling rotor 5 consisting of a plurality of rotor members 50 that are fitted with a soil leveling body 52 and roll in contact with the paddy field surface to level the land, and supported in the width direction of the machine body in front of the planting implement 3, and a mud guard cover 38 that covers the top and back of the soil leveling rotor 5. The rotor 5 is made up of a number of cage-shaped rotor members 50, each of which has a disk 51 fitted and fixed to the rotor shaft 5a, and a number of leveling bodies 52 made of rectangular plate members arranged along the axial direction on the outer periphery of the disk 51. The mud scraping surface of the leveling body 52 is inclined relative to the rotor shaft 5a, The leveling body 52 is configured as a mud-pushing means for leveling the rice field surface by rotating the rotor and pushing mud and water in front of it toward the wheel tracks D, and is characterized by having a drainage section 53 provided at the rear lower position of the mud guard cover 38 between the wheels 7 and the floats 18a for guiding and discharging the mud and water inside the mud guard cover 38 onto the wheel tracks D.

[0006] No. 2 To, In this transplanter, a planting work machine 3 equipped with a float 18a that slides on the wheel tracks D is connected to the rear, a soil leveling rotor 5 consisting of a plurality of rotor members 50 that are fitted with a soil leveling body 52 and that level the land by rolling it over the paddy field surface is supported in the width direction of the machine body in front of the planting work machine 3, and a mud cover 38 is provided to cover the upper and rear surfaces of the soil leveling rotor 5. The soil leveling body 52 is configured as a mud pushing means that pushes mud and water in front of it toward the wheel tracks D as the rotor rotates, while leveling the paddy field surface. A drainage section 53 is provided at the rear lower position of the mud cover 38 between the wheels 7 and the floats 18a to guide and discharge the mud and water inside the mud cover 38 onto the wheel tracks D, and the above The drainage portion 53 is characterized by being a plurality of vertically elongated holes formed in the mudguard cover 38.

[0007] No. 3 To, In this transplanter, a planting work machine 3 equipped with a float 18a that slides on the wheel tracks D is connected to the rear, a soil leveling rotor 5 consisting of a plurality of rotor members 50 that are fitted with a soil leveling body 52 and that level the land by rolling it over the paddy field surface is supported in the width direction of the machine body in front of the planting work machine 3, and a mud cover 38 is provided to cover the upper and rear surfaces of the soil leveling rotor 5. The soil leveling body 52 is configured as a mud pushing means that pushes mud and water in front of it toward the wheel tracks D as the rotor rotates, while leveling the paddy field surface. A drainage section 53 is provided at the rear lower position of the mud cover 38 between the wheels 7 and the floats 18a to guide and discharge the mud and water inside the mud cover 38 onto the wheel tracks D, and the above The drainage portion 53 is characterized by being a cutout portion formed by cutting out the lower end of the mudguard cover 38. Effect of the Invention

[0008] The device of the present invention, configured as described above, improves drainage behind the leveling rotor, eliminating inconveniences such as pushing over seedlings already planted to the sides, while also directing the flow of mud and muddy water to sufficiently fill in the wheel tracks with mud and ensure leveling of the rice field surface with the float.In addition, because the water in the mudguard cover is discharged toward the float at the rear, the drainage flow is dispersed to both the left and right sides of the float, preventing the adverse effects of running water on seedlings already planted to the sides and on seedlings being planted at the rear.

[0009] In addition, by making the drainage section a vertical long hole, the flow of drainage toward the rear of the mud cover is mitigated, preventing the adverse effects of waves and running water on existing seedlings and seedlings to be planted. By making the drainage section a notch, drainage toward the rear is improved. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an overall side view of a transplanter equipped with the device of the present invention. [Diagram 2] FIG. 2 is an overall front view showing the installation state of the ground leveling rotor. [Diagram 3] FIG. 4 is an overall rear view showing the installation state of the ground leveling rotor and the mudguard cover. [Figure 4] 4 is a partial rear view showing the mounting position of a drainage guide cover provided on the mudguard cover. FIG. [Diagram 5] FIG. 2 is a plan view of the essential parts showing the positional relationship between the wheels, the ground leveling rotor, the mudguard cover, and the float. [Figure 6] FIG. 2 is a partial plan view showing the positional relationship between the wheel tracks and the ground leveling rotor, the mudguard cover, and the float. [Figure 7] FIG. 2 is a partial front perspective view of the ground leveling rotor. [Figure 8] FIG. 2 is a front view of the left half of the ground leveling rotor. [Figure 9] 1A is a side view of the rotor member, FIG. 1B is a front view of the rotor member, and FIG. [Figure 10] FIG. 11 is a partial rear view showing another embodiment of the drainage section. [Figure 11] A partial plan view showing the positional relationship of the wheels, the ground leveling rotor and the float in another embodiment of the drainage section. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] 1 to 9 show an embodiment of a riding rice transplanter for six-row planting, which is one example of a transplanter, and Fig. 1 is an overall side view of the transplanter. The transplanter has a planting machine 3 connected to the rear of a traveling body 1 via a link holder 10 (see Figs. 1 and 2) at the rear end of a lifting link 2 consisting of left and right parallel links, so that the planting machine 3 can be driven to move up and down, and a ground leveling rotor 5 is connected to the front of the planting machine 3 and rotates in contact with the rice field surface to level out irregularities such as wheel marks.

[0012] The traveling machine body 1 has front and rear wheels 6, 7 journalled to the machine frame 4, a bonnet 8 housing an engine is provided at the front end of the machine frame 4, and a driver's seat 9 is mounted at the rear. An operation panel 11 displaying various monitors and a steering wheel 12 are provided in front of the driver's seat at the rear end of the bonnet 8, steps 13 are formed on the machine frame 4 around the driver's seat 9, and a work equipment operation unit 14 is installed at the right rear.

[0013] The planting work machine 3 has three transmission cases 17 for planting in the front-rear direction, each of which has a planting transmission mechanism built in a square cylindrical planting frame 16 installed horizontally at the bottom front, and floats 18a, 18b (see Figures 2 and 3) that slide on the paddy field surface are attached to the bottom of each transmission case 17, with the central float 18b forming a sensor float for controlling the ground contact height. The rear end of the planting PTO shaft 15 extending from the traveling body 1 is connected to the front end of the transmission cases 17, and all three units are driven simultaneously for planting.

[0014] Furthermore, rotary cases 19, which rotate by power transmitted from within the transmission case 17 and serve as the planting section, are rotatably supported on both sides of the rear end of each transmission case 17, and a planting claw 21 is protruding from the tip of each rotary case 19, and the above rotation is a mechanism for picking up the lower ends of mat seedlings (not shown) placed on a seedling carrier (described later) one row at a time in conjunction with the machine's travel, and planting them on the rice field surface. P in Figure 5 indicates the planting position.

[0015] A pair of seedling carrier support stays 22, which are bent forward in an L-shape, are erected on the left and right ends of the planting frame 16, and a seedling carrier 23 is attached to the seedling carrier support stays 22 so that it can slide back and forth between the left and right along its forward inclined position.The seedling carrier 23 is supported and attached by the back surface of the seedling carrier support stays 22 and a seedling receiving part (apron) 24 with an L-shaped cross section that is installed horizontally on the transmission case 17.

[0016] The planting work machine 3 is connected to a link holder 10 (see Figures 2 and 3) that connects the rear ends of each link of the lifting link 2 and to the center of the planting frame 16 so that it can roll around the rolling shaft 26, and planting operation is input to the planting transmission case 17 by a planting PTO shaft 27 (see Figure 2) extending from the running body 1 side.

[0017] A horizontal rod 28 is installed horizontally between the upper ends of the left and right seedling carrier support stays 22 to form a gate-shaped frame, and a left-right drive shaft 31 is supported on the back of the lower end between the left and right seedling carrier support stays 22 via a bracket 29 as shown in Figures 7 and 3. Forward-facing suspension arms 32 protrude from both ends of this drive shaft 31, and suspension links 33 are connected downward to the tips of both suspension arms 32, and the rotor shaft 5a of the soil leveling rotor 5 is supported rotatably at the lower end of the suspension link 33 via a bearing 34. An auxiliary arm 36 is connected parallel to the suspension arm 32 below and between the suspension link 33 and the seedling carrier support stays 22, and the soil leveling rotor 5 is raised and lowered by this parallel link.

[0018] The swinging ends (front ends) of the left and right hanging arms 32 are connected to the cross rod 28 by hanging springs 37 consisting of coil springs, and the soil leveling rotor 5 is elastically suspended and supported on the planting frame 16 side, forming a mechanism for elastically touching the paddy field surface. The soil leveling rotor 5 is provided with mud guard covers 38 which cover the top and back sides thereof and are formed separately on the left and right together with the soil leveling rotor 5, and are detachably attached to the hanging link 33 via a bracket 39.

[0019] A gearbox 41 for transmitting input power from the rotor PTO shaft 27 is provided at the center (division) of the soil leveling rotor 5 in the left-right direction, and the other ends of forward-facing levers 42, 43, each with its front end connected to the gearbox 41 and the mudguard cover 38, are connected to the fulcrum of the connection, with the lower end of a suspension spring 44 made of a coil spring for maintaining the rotor in an upward grounded position. The suspension spring 44 urges the rear of the soil leveling rotor 5 and the mudguard cover 38 to rotate in the direction toward the ground, providing a mechanism for enhancing the effect of soil leveling the rice field surface and the effect of controlling the flow path of muddy water, etc.

[0020] The middle part of the drive shaft 31 is also supported by a bearing portion 46 attached to the planting frame 16, and a shaft drive portion 47 is provided near the bearing portion 46 to bias or rotate the drive shaft 31 so as to swing the lifting arm 31 in the direction of lifting the lifting link 33 and the ground leveling rotor 5.

[0021] As shown in Figures 2 to 9 (details in Figure 9), the ground leveling rotor 5 has a pair of left and right chrysanthemum-shaped desks 51 that are fitted and fixed to the rotor shaft 5a, and the leveling bodies 52 made of multiple (six in this example) rectangular plate members are arranged axially between the protrusions of these desks 51. The leveling bodies 52 are inserted and fixed to the rotor shaft 5a.

[0022] In the illustrated example, three rotor members 50 are disposed between the left, right and center floats 18a and 18b, and two are disposed on each of the outer positions of the side float 18a. Above each float 18a and 18b, there is a space S for providing the bearing portion 34 and the gear box 41 described above. 1 ,S 2 is secured, and of this, the space on both sides S 1 As described below, this serves as a space to guide muddy water and other water into the conduit.

[0023] As shown in the figure, when the ground leveling rotor 5 rotates in the forward ground leveling operation (counterclockwise rotation in FIG. 1), the rotor members 50 separate muddy water and the like that surges within the rotor width into the left and right spaces S 1In order to guide the air into the rotor, the leveling body 52 is inclined at a predetermined angle with respect to the rotor axis when viewed from the front, and is attached inclined forward toward the direction of rotation (angle of attack direction) when viewed from the side. In other words, the pair of disks 51 are fixedly arranged with the projections on their peripheral surfaces shifted from each other by a certain angle in the torsional direction.

[0024] That is, the inclination angle of the mud scraping surface of the ground leveling body 52 of each rotor member 50 with respect to the rotor axis varies depending on the position in relation to the floats 18a, 18b, as shown in Figures 2, 7, and 8. In the left and right side portions, the mud scraping surface is inclined upward toward the inside with respect to the axis when viewed from the front, and in the portions on both sides of the center float 18b, the mud scraping surface is inclined upward toward the outside when viewed from the front. In addition to these, for example, some of the ground leveling bodies 52 may be arranged and formed in a spiral blade shape, or the protrusions on the outer periphery of the disk-shaped rotor may be formed in an inclined blade shape, thereby increasing the left and right space S. 1 It is also possible to use a mechanism to guide muddy water, etc.

[0025] As shown in Figs. 5 and 6, when the wheel 7 passes through, a groove D in which the wheel 7 fits is formed on the surface of the paddy field. 1 and the above groove portion D 1 When the wheel is formed, the raised part D is pushed toward the side of the wheel and rises. 2 The wheel trace D is formed by the rotation of the ground leveling rotor 5. 2 is scraped off and the groove D 1 Center of Space S 1 ) towards the

[0026] Next, the mud guard cover 38 that covers the upper surface and the rear side of the ground leveling rotor 5 will be described. The mud guard cover 38 is formed with an angled cross section when viewed from the side, but the space S on the lower end side of the hanging part that covers the rear part is 1 At the rear position of the rotor member 50, a drainage section 53 consisting of a plurality of vertical long holes is provided to drain the muddy water scraped up by the left and right rotor members 50 so that it escapes to the rear side.

[0027] Furthermore, a eave-shaped guide cover 54 with a flared cross section that slopes backward when viewed from behind and covers the water drainage section 53 is attached to the rear surface of the hanging portion that covers the rear of the mudguard cover 38, creating a mechanism that guides and discharges the flow of muddy water and other liquids discharged from the water drainage section 53 toward the center of the float 18a without diffusing to the sides or above the water drainage section 53.

[0028] 1, reference numeral 48 denotes a stand that also serves as a side guard and is axially supported on the side of the planting machine 3 so as to be vertically rotatable, and serves as a stand that supports the planting machine 3 on the floor when rotated downward, and serves as a guard for the planting machine 3 when rotated sideways, and is stored in an upward position. Reference numeral 49 denotes a planting marker that is attached so as to be foldable and removable.

[0029] By the above mechanism, most of the muddy water scraped up by the soil leveling rotor 5 during the machine travel (planting operation) is not swept away to the side of the soil leveling rotor 5 and is not splashed upward, but is instead stored in the space S on both sides. 1 8 and flows into the mudguard cover 38. Then, the mudguard cover 38 is guided toward the space S 1 The muddy water guided into the drainage section 53 and the muddy water that has flowed into the mudguard cover 38 are discharged from the drainage section 53 toward approximately the center of the rear side float 18a while being rectified in the direction of travel, and are also guided and discharged in the direction of the float 18a by the guide cover 54 installed on the rear surface of the cover, so that the water is diffused upward and to the sides and is not turbulent.

[0030] As a result, the inconvenience of the seedlings already planted on the right side being damaged or swept away by the muddy water flow is alleviated, and the muddy water is guided into the wheel tracks D of the left and right rear wheels 7 and flows in. The side floats 18a, which slide immediately afterwards, level or level the rice field surface, and at each planting position P on both sides behind each float 18a, 18b, planting can be carried out reliably without being hindered by running water, waves, muddy water, etc.

[0031] 10 and 11 show an example in which the drainage section 53 of the mudguard cover 38 is formed as a U-shaped or C-shaped cutout section cut into the lower end of the rear side of the cover instead of the multiple long holes (slits) described above, and since this type of cutout increases the amount of muddy water discharged, it is suitable for paddy fields with a large amount of water. Note that the shape, structure, etc. other than the drainage section 53 are the same as those of the previously described embodiment, and common reference numerals indicate common members, etc. [Explanation of symbols]

[0032] 1 Running body 3 Planting machine 5 Leveling rotor 5 6,7 wheels 18a,18b Float 50 Rotor parts 53 Drainage section

Claims

1. In this transplanter, a planting machine (3) equipped with a float (18a) that slides on the wheel tracks (D) is connected to the rear, and a soil leveling rotor (5) consisting of a plurality of rotor members (50) that level the soil by rolling it over the rice field surface with a soil leveling body (52) attached thereto is supported in the width direction of the machine in front of the planting machine (3), and a mud cover (38) is provided to cover the top and back of the soil leveling rotor (5). The soil leveling body (52) consisting of a plurality of rectangular plate members is supported on the outer periphery of a desk (51) on which the rotor (5) is fitted and fixed to the rotor shaft (5a). The ground leveling device for a transplanter is made up of a number of basket-shaped rotor members (50) arranged along the direction of the axis of the rotor (52), and by inclining the mud scraping surface of the ground leveling body (52) relative to the rotor shaft (5a), the ground leveling body (52) is configured as a mud pushing means that pushes mud and water in front of it toward the wheel tracks (D) while leveling the rice field surface by the rotation of the rotor, and a drainage section (53) is provided at the rear lower position of the mud guard cover (38) between the wheels (7) and the floats (18a) to guide and discharge the mud and water inside the mud guard cover (38) onto the wheel tracks (D).

2. A transplanter having a planting machine (3) equipped with a float (18a) that slides on the wheel tracks (D) connected to the rear, a leveling rotor (5) consisting of a plurality of rotor members (50) that level the rice field by rolling a leveling body (52) over the rice field surface and supported on the front of the planting machine (3) in the width direction of the machine, and a mud cover (38) that covers the upper and rear surfaces of the leveling rotor (5), the leveling body (52) is configured as a mud pushing means that pushes mud and water from the front toward the wheel tracks (D) as the rotor rotates, while leveling the rice field surface, and a drainage section (53) is provided at the rear lower position of the mud cover (38) between the wheels (7) and the floats (18a) for guiding and discharging mud and water from the mud cover (38) onto the wheel tracks (D), and the drainage section (53) is a plurality of vertical long holes formed in the mud cover (38).

3. A transplanter having a planting machine (3) equipped with a float (18a) that slides on the wheel tracks (D) connected to the rear, a leveling rotor (5) consisting of a plurality of rotor members (50) that level the rice field by rolling a leveling body (52) over the rice field surface and supported in the width direction of the machine in front of the planting machine (3), and a mud cover (38) that covers the upper and rear surfaces of the leveling rotor (5), the leveling body (52) is configured as a mud pushing means that pushes mud and water from the front toward the wheel tracks (D) as the rotor rotates, while leveling the rice field surface, and a drainage section (53) is provided at the lower rear position of the mud cover (38) between the wheels (7) and the floats (18a) for guiding and discharging mud and water from the mud cover (38) onto the wheel tracks (D), and the drainage section (53) is a notch formed by cutting out the lower end of the mud cover (38).

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