KR20070096853A - Seedling-planting apparatus - Google Patents

Abstract

A seedling planting apparatus is provided, which is wholly downsized by downsizing also a seedling planting mechanism in such a manner that a pressing-out arm is oriented in a right and left direction of an apparatus body. A seedling planting apparatus includes a rotor(21), rotated about a rotary axis(24a) which is oriented in a right and left direction of an apparatus body, and two seedling planting mechanism(26), projected in a right and left direction from the rotor(21), and attached onto two shafts(25) respectively which are rotated and moved separately from the rotor. The seedling planting mechanism(26) comprises: a seedling extracting claw, holding the seedling; a seedling pressing-out body(48), pressing out the seedling in a longitudinal direction from the seedling extracting claw; a pressing-out cam(50), rotated as one body with the rotor so as to operate the seedling pressing-out body; a pressing-out arm(51), swinging an arm shaft(52) about a rotating and moving center axis in the state that it is in contact with the pressing-out cam(50); and a compressing spring, pressing the pressing-out arm against the pressing-out cam so that the former is in contact with the latter.

Description

Seedling planting equipment {SEEDLING-PLANTING APPARATUS}

1 is a side view of a passenger rice transplanter equipped with a seedling planting apparatus of an embodiment of the present invention.

FIG. 2 is a plan view of the passenger transplanter of FIG. 1.

It is a top view of the seedling planting apparatus of the passenger transplanter of FIG.

4 is a side view of a seedling planting apparatus of the passenger transplanter of FIG. 1.

FIG. 5 is a transmission mechanism diagram of a seedling planting apparatus of the passenger transplanter of FIG. 1.

FIG. 6 is an internal left side view of the seedling planting apparatus of the passenger transplanter of FIG.

FIG. 7 is an internal right side view of the seedling planting apparatus of the passenger transplanter of FIG.

8 is a diagram showing a movement trajectory of the tip of a seedling planting sphere of the passenger transplanter of FIG. 1.

It is a figure explaining the internal structure of the seedling planting sphere of the passenger transplanter of FIG.

FIG. 10 is a view seen from the X-ray X-ray cross-sectional arrow in FIG. 9. FIG.

FIG. 11: is a side view (b) of the figure (a) seen from the Y-Y line cross-section arrow direction of FIG. 9, and the seedling planting sphere seen from the Y-Y line arrow direction of FIG.

<Description of the symbols for the main parts of the drawings>

1: Passenger rice transplanter 14: Seedling planting device

21: rotating body 24a: rotation axis

25: final axis 26: seedlings planting sphere

47: seedling extraction claw 48: seedling extruded body

50: extrusion cam 51: extrusion arm

52: arm axis 54: extrusion spring

The present invention relates to a seedling planting device installed in seedling transplanters such as rice transplanters.

The present applicant has filed a patent for a rotary seedling planting device having a total of four seedling planting spheres, two each on the left and right in a rotary case rotating around the planting drive shaft in the left-right direction.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2003-158904

The seedling planting apparatus disclosed in Patent Literature 1 is capable of planting two trillion seedlings in one rotary case, but the seedling extruded body which transplants the seedlings in the package by pushing the seedlings held in the seedling extraction claw of the seedling planting plant in the vertical direction. The vertical movement direction and the swinging direction of the extrusion arm for vertically moving the seedling extruded body are arranged in a direction orthogonal to the axis for driving the extrusion arm, and the seedling planting sphere is operated to eliminate the interference between adjacent seedling planting balls. It was necessary to increase the trajectory. Therefore, the whole seedling planting apparatus was made large.

Then, the subject of this invention is miniaturization of a seedling planting sphere, and miniaturization of the whole seedling planting apparatus.

This invention made the following structure about the said subject.

That is, the rotating body 21 which rotates about the rotation axis 24a which faces the left-right direction of a base is provided, and it protrudes in the left-right direction from the said rotating body 21, and rotates individually with respect to the said rotating body 21. A seedling planting sphere 26 is attached to the moving shaft 25, and the seedling planting sphere 26 has a seedling extraction claw 47 for maintaining the seedlings, and a seedling extraction claw from the seedling extraction claw 47. The seedling extruded body 48 pushed out in the longitudinal direction of the 47, the extrusion cam 50 which rotates integrally with the rotating body 21 to operate the seedling extruded body 48, and the extruded cam 50 comes into contact with the extruded cam 50. The extrusion arm 51 swinging with the arm shaft 52 in the front and rear direction as the rotational movement central axis, and the extrusion spring 54 for pressing the extrusion arm 51 in the direction in contact with the extrusion cam 50. It is a seedling planting apparatus which provided the seedling extruded body 48 with the extrusion arm 51 provided in the left-right direction.

According to the present invention, the extrusion arm 51 arranged toward the left and right direction of the gas operates in the vertical direction, so that the seedling extruded body 48 holds the seedlings held by the seedling extraction claw 47 of the seedling extraction claw 47. Since it pushes out in a longitudinal direction, the space of the front-back direction in which the extrusion arm 51 operates can be made small.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

1 and 2 are a left side view and a plan view of a traveling rice transplanter equipped with a seedling planting apparatus of the present invention. The passenger transplanter 1 is provided with a lifting linkage device at the rear of the traveling vehicle body 5 equipped with a pair of left and right front wheels 3 and 3 and rear wheels 4 and 4 on which the engine 2 is mounted and rotated. 6) through 6) planting seedlings planting part 7 is connected. The traveling vehicle body 5 is provided with a steering seat 8, a steering wheel 9 for steering the front wheels 3, 3, and a spare seedling loading table 10 for storing spare seedlings.

The seedling planting part 7 installs the seedling loading stand 13 which inclined so that a front part may become upper on the upper side of the planting transmission case 12 electrically input from the traveling vehicle body 5, and the planting transmission case 12 A seedling planting device 14, ... is provided for every two sets at the rear end of the planting transmission part of the plant. When the gas is advanced while the plots 15 and ... are grounded, the seedling loading stand 13 reciprocates from side to side, and one mat seedling is placed at the seedling taking-out port 16, ... on the lower side of the seedling loading stand. It is supplied one by one, and the seedling planting apparatuses 14, ... are separated and transplanted into a package.

Next, the seedling planting apparatus 14 is explained in full detail.

The top view of the seedling planting apparatus 14 is shown in FIG. 3, the side view is shown in FIG. 4, and the internal drive mechanism diagram is shown in FIG. The stationary support 20 is integrally provided with the planting transmission part case 12 at the rear end of the planting transmission part case 12, and the rotating body (rotary case) 21 is provided with a bearing 22 inside the stationary support part 20. ) Is fitted around the rotary shaft 24a so as to be rotatable. Three final shafts 25, 25, and 25 are rotatably provided on the circumference around the sun gear shaft 24 in a phase of 120 degrees to each other, and each final shaft 25 is provided. Seedling planting spheres 26 and 26 are integrally attached to both the left and right ends projecting from the rotating body 21 of the apparatus. In addition, the final shaft 25 protrudes from the rotary body 21 in the lateral direction to be an axis that rotates separately with respect to the rotary body 21.

The driving gear 30 which rotates integrally with the said rotating body 21 is provided in the inside of the rotating body 21. As shown in FIG. By rotating this drive gear 30 by the input gear 31 provided in the rear end of the planting transmission part 12, the rotating body 21 rotates to arrow B direction (FIG. 4, FIG. 7). In addition, in the transmission part from the sprocket 32a of the chain transmission 32 which electric-drives to the input gear 31 to the input gear 31, when the power transmission is stopped, the input gear 31 will stop in a predetermined phase. A stop clutch is installed.

The left side view of the inside of a seedling planting apparatus is shown in FIG. 6, and the right side view is shown in FIG.

6 shows the engagement state of the drive gear 30 and the input gear 31. The number of teeth of the drive gear 30 is three times the number of teeth of the input gear 31, and the drive gear 30 has three rotation centers (based on the engagement position with the input gear 31 in FIG. 6). 0 °, 120 °, and 240 ° from is an uneven diameter gear that has a maximum diameter, and the input gear 31 is one of the driving gears 30 in FIG. The position of 0 degrees with respect to the engagement position) is an uneven diameter gear whose minimum diameter is made. Therefore, when the drive gear 30 meshes with the input gear 31 at positions of 0 °, 120 ° and 240 °, the rotation speed of the drive gear 30 is lowered, and the rotation speed of the drive gear 30 is 1. Change every 3 cycles.

In addition, since a gear train for transmitting to the final shafts 25, 25, 25 is provided inside the rotor 21, the linkage relationship between the gear trains will be described.

By rotation of the drive gear 30 with which the input gear 31 is engaged, the rotating body 21 integrated with the drive gear 30 rotates, and the internal gear 21a fixed to the inner surface of the case of the fixed support 20 is fixed. (FIG. 7) rotates while moving the circular orbit around the sun gear shaft 24 of the rotating body 21 in conjunction with the rotation of the rotating body 21. The rotary gear 35 is loosely fitted to the support shaft 34 whose ends are fixedly supported on both sidewalls of the rotor 21 together with the first eccentric gear 36, and the rotary gear 35 and the first eccentric gear 36 rotates integrally. The second eccentric gear 37 is engaged with the first eccentric gear 36, and the second eccentric gear 36 is a sun gear shaft 24 whose ends are rotatably supported on both sidewalls of the rotating body 21. Since the inconstant speed gear 38 is rotated by the rotation of the second eccentric gear 37, it is interlocked with the inconstant speed gear 38 fixed to), through the sun gear 27 fixed to the sun gear shaft 24. The counter gear 39 meshing with the sun gear 27 drives the final gear 40 meshing with the counter gear 39. The final gear 40 is individually fixedly supported on three final shafts 25, 25, 25 provided at equal intervals on the circumference around the sun gear shaft 24, respectively. The final gears 40, 40, 40 are also non-circular gears (unequal diameter gears).

When the rotating body 21 rotates, the seedling planting sphere 26 provided three by each on both sides of the said rotating body 21 moves a circular orbit. At that time, the operation of the rotary gear 35 that cooperates with the rotation of the rotating body 21 is transmitted to the final shafts 25, 25, 25 through the gear train, and the postures of the seedling planting spheres 26, 26, 26 are maintained. Is changed. Thereby, the seedling planting sphere 26 operates so that the tip of the seedling extraction claw 47 described later draws the trajectory P (Figs. 4 and 6).

The tip movement trajectory of the seedling take-out claw 47 in the planting area to the pavement with the movement of the gas varies depending on the number of planting aerations per unit area, as shown in FIG. 8. As the number of planting aerations per unit area increases, the tip trajectory of the seedling extracting claw 47 changes from the trajectories (a) to (d) shown in FIG. 8.

Moreover, although the seedling planting part 26 is provided in the final shaft 25 provided in three substantially equal intervals in the rotation direction of the rotating body 21, each last supported by the bearing 23 to the rotating body 21 is carried out. The shaft 25 is rotatably supported by the outer fixed support 20 attached to the body via the bearing 22, respectively. Moreover, since the bearing 22 for supporting and rotating the rotating body 21 to a base | substrate is provided in each final shaft 25, and the said rotating body 21 is supported by these several bearing 22, the said bearing ( Since 22) can be downsized and the rotor 21 can be made light in weight, the rotor 21 can rotate smoothly, and the planting precision of a seedling can be improved.

Since the final shaft 25 is directly supported by the bearing 22, the positional accuracy of each final shaft 25 is improved, and the seedling take-off amount taken out from the seedling loading table 13 of the seedling planting sphere 26 Improvement of planting precision, such as seedling planting depth in a package, can be aimed at.

Moreover, for sealing between the fixed support 20 and the rotating body 21 which mounted the outer diameter dimension of the bearing 22 in the state which attached the bearing 22 to the final shaft 25 on the outer side of the bearing 22. The oil seal 28 was smaller than the mounting inner diameter of the fixed support 20. Therefore, when mounting the bearing 22 between the fixed support body 20 and the rotating body 21, since the oil seal mounting surface does not interfere with the bearing 22, the oil seal mounting surface will not be scratched, The quality of the oil seal 28 which is easy to be flawed is stabilized.

Moreover, the alignment position X (refer FIG. 4, FIG. 6) of the planting transmission case 12 and the fixed support body 20 is rearward of the body from the seedling receiving plate 55 (FIG. 4) of the seedling loading stand 13 Since it is at the side, the fixed support body 20 can be attached to the planting transmission case 12 without being disturbed by the seedling receiving plate 55 of the seedling loading stand 13, and mounting property improves compared with the former.

As shown in FIG. 9, each seedling planting sphere 26 is a two-fork-shaped seedling take-out claw 47 having a sharp tip formed on the seedling planting spheres 46a and 46b fastened by the pins 53; And a seedling extruded body 48 which protrudes and retracts under the seedling take-out claw 47, an extrusion cam 50 for protruding and retracting the tip of the seedling extruded body 48, and the extrusion Since the cam 50 is always in sliding contact with the side surface, the cam 50 penetrates through the base of the extrusion arm 51 and the extrusion arm 51 which moves up and down by the rotational movement of the cam 5. It consists of the arm shaft 52 used as a rotational movement center axis | shaft, the extrusion spring 54 etc. which always press the extrusion arm 51 to the extrusion cam 50, and the like.

Moreover, as shown in FIG. 10 which is the figure seen from the XX line cross section arrow direction of FIG. 9, the opening 46b1 for inserting the extrusion cam 50 in the surface which contact | connects the rotating body 21 of the seedling planting case 46b. ), Inserting the extrusion cam 50 into the opening 46b1, inserting the arm shaft 52 into the base of the extrusion arm 51, and then inserting the arm shaft 52 into the seedling planting case 46b. Since the largest diameter part of the extrusion cam 50 contacts the arm shaft 52 attached by the seedling planting case 46b by fixing to the seedling planting case 46b, the extrusion cam 50 does not fall out from the seedling planting case 46b, The inside of the planting sphere 46b is rotatably supported.

The final shaft 25 is inserted in the state of being loosely fitted in the insertion hole formed in the center part of the extrusion cam 50 mounted from the opening 46b1 of the seedling planting case 46b.

In addition, since the seedling planting sphere 26 is supported so that the final shaft 25 may be integrally rotated through the quadrangular shaft portion of the end of the shaft 25, the rotational movement of the final shaft 25 is the seedling planting sphere 26. ), The seedling planting sphere 26 rotates integrally with the final shaft 25.

Moreover, the extrusion cam 50 also rotates through the case 46b of the seedling planting part 26 by the rotational movement of the final shaft 25, and the extrusion arm 51 which contacts the cam surface of the extrusion cam 50 is an extrusion cam. The circumference of the arm shaft 52 is rocked while rotating in the vertical direction by the rotation of the 50. Moreover, the longitudinal direction of the extrusion arm 51 is arrange | positioned so that it may become a parallel position with the extending direction of the final axis | shaft 25, and the seedling extruded body 48 and the extrusion arm 51 are extended to the left-right direction of gas ( It is supported by the rotating body 21 to rotate the circumference 25, and can be moved up and down at a predetermined period by the rotation of the rotating body 21.

Since the front end of the seedling extruded body 48 is fitted into the holding part of the extrusion arm 51, the seedling extruded body 48 is in contact with the seedling takeout claw 47 in conjunction with the movement of the extrusion arm 51. Swing in the direction of

Since the seedling take-out claw 47 is scraped and held while holding the seedling in the seedling loading stand 13, the seedling held by the seedling take-out claw 47 by the movement of the seedling extruded body 48 in the vertical direction. Can be pushed towards the package.

In the structure of the present Example, the extrusion arm 51 oscillating while inserting the seedling extruded body 48 into the grip part of a front-end | tip is made into the structure which rockes around the arm shaft 52 in the up-down direction.

Therefore, the longitudinal direction of the extrusion arm 51 is arrange | positioned so that it may become in parallel with the last axis | shaft 25, and the extrusion arm 51 oscillates the arm shaft 52 supported at both ends by the seedling planting case 46b. It moves up and down in a predetermined period by rotation of the seedling planting case 46b as a center.

In this way, since the longitudinal direction of the extrusion arm 51 is directed in the horizontal direction of the gas, the space in the front-back direction or the vertical direction of the extrusion arm 51 can be reduced, and interference with the peripheral member can be prevented. .

According to the configuration of the present embodiment, the longitudinal direction of the extrusion arm 51 is disposed so as to be in parallel with the extension direction of the final axis 25, so that the seedling planting sphere 26 does not interfere even if the trajectory is reduced. The size of the floats 26 can be reduced, which makes it possible to reduce the size of the seedling planting device 14.

Moreover, the extrusion cam 50 which rotates integrally with the rotating body 21 by the rotational movement of the final shaft 25 also rotates, and the extrusion arm 51 which contacts the cam surface of the extrusion cam 50 is the extrusion cam 50. It swings around the arm shaft 52 while rocking in the up and down direction by the rotation of. Moreover, the extrusion arm 51 is arrange | positioned in parallel with the last axis | shaft 25, The base of the extrusion arm 51 is a seedling type | mold using the arm shaft 52 supported by the both ends to the seedling planting case 46b as a swing center. By the rotation of the floats 26 (seedling planting case 46b), it can move up and down at a predetermined cycle.

In addition, the seedling extruded body 48 swings up and down by contacting the seedling extruded claw 47 due to the swinging of the extrusion arm 51. At this time, since the seedling take-out claw 47 is scraped and held while holding the seedlings in the seedling loading table 13, the seedling take-out claws 47 are moved by the vertical movement of the seedling extruded body 48. The seedlings retained in the can be pushed towards the package.

In addition, when the seedling taking-out claw 47 performs seedling planting operation, a connection is transmitted from the swinging motion about the arm axis 52 of the extrusion arm 51 to the linear movement in the vertical direction of the seedling extruded body 48. Although a part is required to have a clearance (hole), the clearance (hole) is arranged by arranging the longitudinal direction of the extrusion arm 51 of the seedling planting ball 26 in a position parallel to the longitudinal direction of the final shaft 25. It becomes the left-right width direction ((a) direction of FIG. 9) of a base body. However, in the seedling planting sphere 26 of the prior art, the clearance (flow) is in the front-rear direction of the body (the direction orthogonal to (a) of FIG. 9). Therefore, since the seedling planting sphere 26 of the prior art has a margin formed in the front-back direction of the base, the working point at which the seedling extruded body 48 pushes the seedling at the seedling planting position is easily shifted back and forth, and the seedling extraction claw Since the said operation point shifted back and forth with respect to a seedling because the space | interval of (47) and the said operation point differs, the seedling posture of the seedling was blurred by turning into a foreground or a rear view of a seedling. . However, in this embodiment, since the clearance is formed in the left and right directions, even if the action point is shifted from side to side, there is little influence on the seedling posture of the seedlings, so that the seedling posture of the seedlings in the packaging is improved.

In addition, in the seedling planting sphere 26 of the prior art, since the clearance (flow) is in the front-back direction of the body, a large space is required in the longitudinal direction (the rotation radius direction of the rotating body 21), and thus the size of the entire seedling planting apparatus Although the size is large, in the seedling planting sphere 26 of the present embodiment, since the clearance (flow) is in the width direction of the base, the size of the entire seedling planting apparatus is relatively small.

In order to swing the extrusion arm 51 vertically about the arm axis 52, the extrusion cam 50 which contacts the side surface of the extrusion arm 51 is provided so that it may rotate integrally with the rotating body 21. As shown in FIG. Since a part of the plane of the extrusion cam 50 is in contact with the side surface of the extrusion arm 51, the extrusion arm 51 can be rocked only by the rotational load of the extrusion cam 50. The cam contact of the extrusion arm 51 and the moving direction of the seedling extruded body 48 are in the same plane, so that the thrust load of the extrusion cam 50 is eliminated and the extrusion cam 50 is reduced with a small load. Can rotate smoothly.

Moreover, when the contact surface of the small diameter part of the extrusion cam 50 which integrally rotates with the rotating body 21 around the final shaft 25 contacts the extrusion arm 51, the extrusion arm 51 will rock and the seedling extruded body ( 48) starts the extrusion operation. At this time, the contact surface of the extrusion arm 51 was inclined with respect to the contact surface of the extrusion cam 50 to the extrusion arm 51. In this way, the contact surface of the extrusion arm 51 can be prevented from suddenly contacting the contact surface of the extrusion cam 50, and it becomes difficult for the cam contact surface of the extrusion arm 51 to be caught by the contact surface of the extrusion cam 50, and a seedling formula Rotation of the floats 26 is smooth.

In addition, as shown in FIG. 10 (the figure seen from the XX line cross section arrow of FIG. 9), the attachment position of the extrusion cam 50 is made into the seedling planting position (the seedling extraction claw 47 and the seedling extruded body 48). Direction) and the left and right positions are shifted from the rotating body 21 side. This configuration is formed by shifting the front and rear positions of the final shaft 25 to which the extrusion cam 50 is attached to the rotor 21 side from the axial center direction of the seedling extraction claw 47 and the seedling extruded body 48. In some cases. Therefore, muddy water does not come to the attachment position of the extrusion cam 50 at the time of seedling planting.

Since the extrusion cam 50 oscillating the conventional extrusion arm 51 was near the seedling planting position by the seedling taking-out claw 47 and the seedling extruded body 48, the muddy water was packaged in the back during seedling planting. We may sprinkle on seedling after transplantation, and seedling planting posture may be disturbed. However, in the present embodiment, since the extrusion cam 50 is disposed at a position far from the seedling takeout claw 47 and the seedling extruded body 48, the muddy water does not come to the extrusion cam 50. Moreover, the large diameter part of the seedling planting sphere 46b which becomes the circumference | surroundings of the extrusion cam 50 can be made to not interfere with the seedling taking-out claw 47 of the other seedling planting sphere 26, and further, the whole seedling planting apparatus Can be miniaturized.

FIG. 11A shows the seedling planting sphere 26 in the YY line cross-section arrow direction of FIG. 9, and FIG. 11B shows the seedling planting sphere 26 in the YY line arrow direction FIG. 9. The side view of the.

As shown in FIG. 9, the seedling planting sphere 26 is rotated through the seedling planting case 46b of the seedling planting sphere 26 which is integrally rotated with the shaft 25 when the final shaft 25 is rotated. When the extrusion cam 50 rotates and the extrusion arm 51 swings due to the action of the cam mechanism composed of the extrusion cam 50 and the extrusion arm 51, the extrusion spring 54 presses the extrusion arm 51. The pressurization of the seedling extruded body 48 by the extrusion arm 51 is performed stably by this.

Thus, the seedling planting apparatus 14 of this embodiment installs the seedling planting sphere 26 in the left and right both sides of the rotating body 21 rotatably supported from the outside by the fixed support body 20, and one rotating body The seedlings are transplanted into two sets at the same time as (21), and three seedlings planting spheres 26 are provided for each group to enable high-speed transplantation.

According to this invention, since the extrusion arm 51 is arrange | positioned toward the left-right direction of gas, the seedling planting sphere 26 and a seedling planting apparatus can be miniaturized.

Claims (1)

The rotating body 21 which rotates about the rotation axis 24a which faces the left-right direction of a base is provided, and it protrudes in the left-right direction from the said rotating body 21, and rotates separately with respect to the said rotating body 21. A seedling planting sphere 26 is attached to the shaft 25, and the seedling planting sphere 26 holds a seedling extraction claw 47 for holding the seedlings, and a seedling extraction claw 47 from the seedling extraction claw 47. ) The seedling extruded body 48 to be pushed in the longitudinal direction of the &lt; RTI ID = 0.0 &gt;) &lt; / RTI &gt; and the extrusion cam 50 which rotates integrally with the rotating body 21 to operate the seedling extruded body 48, and the extruded cam 50 is moved back and forth. It is provided with the extrusion arm 51 which oscillates using the arm axis 52 of a direction as a rotational movement center axis | shaft, and the extrusion spring 54 which presses the said extrusion arm 51 to the direction which contacts the extrusion cam 50, , Seedling planting plant, characterized in that the seedling extruded body 48 is connected to the extrusion arm 51 provided in the left and right directions Chi.

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