JP4269414B2 - Rotary seedling planting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary seedling planting device of a seedling planting machine, and has a seedling separation claw and a seedling extrusion claw to be planted on a soil surface while separating a predetermined number of seedlings from a mat seedling grown in a mat form. The attached case can be used as a rotary-type seedling planting device that is arranged in a rotary case that rotates around a rotary case axis and rotates or rotates to draw an elliptical or D-shaped seedling planting locus.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 7-163218 discloses a technique of a seedling planting device in a rotary form. The rotary case is fixed to the rotary case shaft and the planting case is fixed to the planting case shaft. An extrusion cam for interlocking the seedling extrusion claw is provided opposite to the front surface of the seedling extrusion claw, and the planting case is fixed to the side end portion of the planting case shaft through a metal attached thereto. ing.
[0003]
[Problems to be solved by the invention]
In the rotary seedling planting apparatus, since several planting cases are arranged for each rotary case, the spacing adjustment or adjustment in the direction between the seedling planting strips may be performed. Such operations such as adjustment are simplified, and the operation of the seedling push-out claw is performed accurately .
[0004]
[Means for Solving the Problems]
As described in claim 1, the present invention is a rotary in which a plurality of planting cases 3 each having a seedling separation claw 1 for separating and holding seedlings in a seedling tank 7 and a seedling extrusion claw 2 for extruding the separated seedlings are mounted in a shaft. the case 4, movable adjusted in the axial direction of the rotary case shaft 5 of the aircraft, respective planting casing 3 is provided movably adjustable relative planting case axis 6 of the rotary case 4 in the axial direction NaeUe In the rotary seeding device of the machine, a fixed eccentric gear 22 integral with the machine body is provided in the rotary case 4 on the outer peripheral portion of the rotary case shaft 5, and the boss 50 is formed by projecting the fixed eccentric gear 22 integrally on the side surface of the machine body. The case boss 8 along the planting case shaft 6 is integrally formed on the rear side of the planting case 3, and the case boss 8 is formed on the planting case shaft 6. Fitted from the outer end side, The soot boss 8 is formed wide across the width of the seedling extruding claw 2 and the extrusion arm 26 that operates the seedling extruding claw 2, and the extrusion arm 26 is pivoted to the planting case 3 by an arm shaft 27. A cam arm 28 that is slidably in contact with the push cam 9 disposed on the planting case shaft 6 is integrally formed on one side of the rear portion of the push arm 26, and a boss portion 29 that projects the push cam 9 from the rotary case 4. It is fitted into the rotary case 4 and is integrated with the rotary case 4, and the extrusion cam 9, the boss 29, and the seal 31 of the outer periphery of the boss 29 are provided in the opening 30 formed on the rotary case 4 side of the planting case 3, The push cam 9 and the cam arm 28 are provided at the side end of the case boss 8 so as to be offset from the push arm 26 toward the rotary case 4. .
[0005]
According to a second aspect of the present invention, the planting case 3 is fixed to the metal 33 fixed by the adjustment tool 10 that can be moved and adjusted with respect to the planting case shaft 6 by a pair of front and rear mounting bolts 32, and the pair of front and rear In the state where the mounting bolt 32 is loosened, the relative position around the planting case shaft 6 between the metal 33 and the planting case 3 can be changed and adjusted, and the metal between the pair of front and rear mounting bolts 32 can be adjusted. The rotary seeding device of the seedling planting machine according to claim 1, wherein a threaded fixing bolt 37 is provided at 33 .
[0006]
【The invention's effect】
The invention according to claim 1, the rotary case 4 having a plurality of planting case 3, can be moved adjusted to the axial direction of the rotary case shaft 5, in particular, during the axial movement regulation of the rotary case 4 is fixed eccentric gear 22 and the bearing 51 can also move together, so that the plurality of planting cases 3 can be moved together to facilitate adjustment of the action position with respect to the seedling separation port of the seedling tank 7 and the like.
[0007]
Further, a case boss portion 8 along the planting case shaft 6 is integrally formed on the rear side portion of the planting case 3, the case boss portion 8 is fitted to the planting case shaft 6 from the outer end side, and is attached. The case boss 8 is formed wide across the width of the seedling extruding claw 2 and the extruding arm 26 that operates the seedling extruding claw 2, and the extruding arm 26 can be rotated to the planting case 3 by the arm shaft 27. A cam arm 28 that is pivotally supported and slidably contacts the push cam 9 disposed on the planting case shaft 6 on one side of the rear portion of the push arm 26 is integrally formed, and the push cam 9 protrudes from the rotary case 4. 29 is fitted into the rotary case 4 so as to be integrated with the rotary case 4, and the extrusion cam 9, the boss 29, and the seal 31 on the outer periphery of the boss 29 are provided in the opening 30 formed on the rotary case 4 side of the planting case 3. The push cam 9 and the cam arm 28 are connected to the case boss portion. Since those provided by offset the rotary case 4 toward the side end portion with respect to the push-out arm 26, moving adjusting the planting case 3 on the left and right, planting case axis of planting case 3 6 Can be stabilized, and the operation of the seedling extrusion claw 2 can be performed accurately.
According to the second aspect of the present invention, the planting case 3 is fixed to the metal 33 fixed by the adjuster 10 that is movable and adjustable with respect to the planting case shaft 6 by the pair of front and rear mounting bolts 32, and the pair of front and rear mountings with a configuration that can be adjusted changing the relative relationship positions of the planting case axis 6 around between the metal 33 and the planting case 3 while loosening the bolts 32, the metal 33 to the spacing of the front and rear pair of mounting bolts 32 Since the screwed fixing bolt 37 is provided, when adjusting the amount of seedling separation from the seedling tank 7, the pair of front and rear mounting bolts 32 and the fixing bolt 37 in the planting case 3 are loosened, and the metal 33 is planted. Adjust the rotation around the axis 6. When the action of the seedling separation claw 1 on the seedling tank 7 is deepened, the amount of seedling separation can be increased, and when it is shallow, the amount can be decreased. In order to fix the adjustment position, the pair of front and rear mounting bolts 32 can be tightened and the fixing bolt 37 can be pushed in and pressed against the surface of the planting case 3 to be firmly fixed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. The seedling planting device 11 is mounted on the rear side of the vehicle body 12. A seedling tank that is reciprocated in the left-right direction at the upper part of the seedling planting machine 13 and a substantially elliptical shape in a side view behind the seedling tank 7. A seedling planting device 14 for separating and planting mat seedlings supplied from the seedling tank 7 while drawing up and down a D-shaped seedling planting locus A, and the seedling planting machine 13 while sliding on the soil surface The center float 15 and the site float 16 that support the weight of the like are arranged and configured to have a multi-row planting configuration.
[0009]
The seedling planting body 13 is mainly composed of a transmission case having a transmission mechanism inside, and an input shaft 18 interlocked with a power take-off shaft 17 on the vehicle body 12 side is subordinate to the rear side of the main case 19 of the shaft mounting and both left and right sides. A case 20 is arranged. A seedling planting device 14 is provided on each of the left and right sides of each subcase 20.
A rotary case shaft 5 in the left-right direction is mounted on the rear part of each subcase 20 and is transmitted and rotated. The center portion of the rotary case 4 can be attached to and detached from both side end portions of the rotary case shaft 5 with cotter pins 21. The tip end portion of the rotary case shaft 5 to which the cotter pin 21 is pressed is formed on a square axis surface. In addition, the planting case 3 is mounted by axially mounting the planting case 6 on both outer ends of the rotary case 4.
[0010]
In the rotary case 4, a fixed eccentric gear (sun gear) 22 that is integral with the sub case 20 and is not rotated is provided on the outer peripheral portion of the rotary case shaft 5. The fixed eccentric gear 22 is configured such that it can move together with a bearing 51 and the like in the axial direction on the outer periphery of a boss 50 that is integrally protruded from the side surface of the sub case 20 and rotates integrally in the rotational direction. As a result, when the axial movement of the rotary case 4 is adjusted, the fixed eccentric gear 22 and the bearing 51 can also move together.
[0011]
Also, an integral rotating eccentric gear 23 is provided on each planting case shaft 6 part. An intermediate eccentric gear (planetary gear) 24 is fitted between the fixed eccentric gear 22 and the eccentric gears 23 at both ends, and is mounted by a gear shaft 25. Then, by rotating the rotary case 4 integrally with the rotation of the rotary case shaft 5, the planting case shaft 6 is rotated via the intermediate eccentric gear 24 and the eccentric gear 23 that mesh and rotate around the fixed eccentric gear 22 gear.
[0012]
A case boss portion 8 along the outer periphery of the lateral planting case shaft 6 is integrally formed on the rear side portion of the planting case 3 of each planting case shaft 6, and the case boss portion 8 is planted. It can be attached to the case shaft 6 by fitting from the outer end side. Further, the case boss portion 8 is formed wide across the width of the rear front surface of the seedling pushing claw 2 that can move up and down and the pushing arm 26 for operating the case boss portion 8.
[0013]
The pushing arm 26 is pivotally supported on the planting case 3 by an arm shaft 27, and a cam arm 28 is slidably brought into contact with the pushing cam 9 disposed around the planting case shaft 6 on one side of the rear part. Is configured integrally. The push-out cam 9 is configured so that the planting case shaft 6 is rotatably fitted in the central shaft hole portion, and is integrally fitted into the protruding boss portion 29 from the rotary case 4. 4 is integrated.
[0014]
These push cams 9 can be configured by forming an opening 30 on the rotary case 4 side of the planting case 3 and fitting it into the opening 30 together with the boss 29, the outer peripheral seal 31 and the like. . The push cam 9 and the cam arm 28 are set at the side end portion of the case boss portion 8 and deviated from the push arm 26 toward the rotary case 4.
[0015]
The left / right movement adjustment of the planting case 3 is inserted into a metal 33 fastened and fixed to the outer surface of the planting case 3 by a mounting bolt 32 and a fitting portion of the metal 33 with the planting case shaft 6. This is a configuration performed by the adjustment tool 10 including the cotter pin 34 and the like. The bolt hole of the metal 33 through which the pair of front and rear mounting bolts 32 are inserted is formed in the shape of a hollow hole, and when the mounting bolt 32 is loosened, around the planting case shaft 6 between the metal 33 and the planting case 3 The relative position of can be changed and adjusted.
[0016]
When the cotter pin 34 is inserted and removed and the planting case 3 is moved and adjusted in the direction of the planting case shaft 6, the position of the planting case 3 relative to the rotary case 4 can be changed. At this time, the cam arm 28 of the pusher arm 26 also moves integrally, and the position of the pusher cam 9 changes, but the adjustment range is set so that it does not depart from the width of the pusher cam 9. The outer end portion of the planting case shaft 6 to which the cotter pin 34 is pressed is formed in a square shaft shape.
[0017]
Further, the metal 33 into which the cotter pin 34 is inserted has a split groove 35 extending over the pin hole into which the cotter pin 34 is inserted, and is tightened by a nut 36 screwed into the end of the cotter pin 10. 33 is configured to be integrated with the planting case shaft 6.
Fine adjustment of the mounting phase angle of the planting case 3 with respect to the planting case shaft 6 can be performed by slightly rotating the metal 33 around the planting case shaft 6 with respect to the planting case 3. Since the metal 33 can swing around the planting case shaft 6 by loosening the pair of front and rear mounting bolts 32, the mounting bolt 32 and the cotter pin 34 are tightened at an appropriate mounting phase angle in this state. And fix. Further, a fixing bolt 37 that is screwed to the metal 33 is provided in the space between the front and rear mounting bolts 32. The fixing bolt 37 is pressed against the outer surface of the planting case 3, thereby fixing the planting case 3 to a fixed degree. Make it stronger.
[0018]
By adjusting the mounting phase angle of the planting case 3 with respect to the planting case shaft 6, the planting operation locus A at the tip of the seedling separation claw 1 attached to the tip of the planting case 3 is moved in the front-rear direction. Thus, the depth of action on the seedling tank 7 can be changed and adjusted to change the seedling separation amount.
The seedling separation claw 1 is attached to the lower part of the front end of the planting case 3 and protrudes downward as a pair of left and right hairpins. The seedling pushing claw 2 is formed in a fork shape approaching the rear side surface of the seedling separating claw 1, is fixed to the lower end portion of the pushing rod 38, and is moved up and down. The root part of the seedling to be separated and held is engaged and pushed downward.
[0019]
The upper end portion of the push rod 38 and the push arm 26 are connected by a link 39, and springed downward by a spring 40 between the upper end portion of the planting case 3. The seedling pushing claw 2 can be actuated in the downward pushing direction by the elastic force of the spring 40, and the seedling pushing claw 2 can be moved up against the spring 40 by the rotation of the pushing cam 9. Further, the seedling pushing claw 2 is in the upward movement position pushed up by the pushing cam 9 in the seedling separation process acting on the seedling tank 7, and is pushed down by the spring 40 in the seedling planting process approaching the soil surface. It is configured in conjunction with the relationship that can be actuated to the downward movement position.
[0020]
The vehicle body 12 has a front wheel 42 that can be steered by a steering handle 41 and a rear wheel 44 on the rear side of the cockpit 43, and is driven to rotate by driving of an engine 45 below the cockpit 43. The seedling planting device 11 is connected to the rear ends of a pair of upper and lower parallel link mechanisms 46 connected to the rear portion. Reference numeral 47 denotes an elevating cylinder which can elevate and lower the parallel link mechanism 46 with hydraulic pressure. 47 is an auxiliary seedling stage, and 48 is a fertilizer application device.
[0021]
The seedling separation claw 1 and the seedling extrusion claw 2 of each seedling planting device 14 are operated to the seedling separation port 49 of the seedling tank 7, so that these operating positions are changed during maintenance or when changing the seedling planting strips. Adjust. The seedling planting operation trajectories of the seedling separation claws 1 on the same rotary case 4 must match, but when both are shifted by the same amount in the left and right direction, the cotter pin 21 of the rotary case 4 is loosened and this The rotary case 4 is moved in the axial direction with respect to the rotary case shaft 6. After the movement, the cotter pin 21 is driven to fix the adjustment position. At this time, the pair of planting cases 3 on the same rotary case 4 is moved to the same amount left and right, and the seedling separating claw 1 and the seedling pushing claw 2 are also moved and adjusted by the same amount.
[0022]
Also, when moving adjusting only the position in the lateral direction between the pair of planting case 3 mutually on the same rotary case 4 may be moved and adjusted along the planting case 3 of the subject planting case shaft 6. In this adjustment, the cotter pin 34 which is the adjustment tool 10 is loosened and the case boss portion 8 is moved along the planting case shaft 6. The seedling separation claw 1 is positioned so that the seedling separation port 49 can pass through, and the cotter pin 34 is driven and tightened with a nut 36.
[0023]
Further, when adjusting the amount of seedling separation from the seedling separation port 49, the mounting bolt 32 and the fixing bolt 37 in the planting case 3 to be adjusted are loosened, and the metal 33 is rotated around the planting case shaft 6. To do. If the action of the seedling separation claw 1 on the seedling tank 7 is deepened, the amount of seedling separation can be increased, and if it is shallow, it can be reduced. In order to fix the adjustment position, the mounting bolt 32 is tightened and the fixing bolt 37 is pushed into the planting case 3 surface.
[Brief description of the drawings]
FIG. 1 is a plan view of a seedling planting unit.
FIG. 2 is a side view thereof.
FIG. 3 is a side view of a rotary case part.
FIG. 4 is a plan view of a seedling planting body.
FIG. 5 is a side view of a seedling planting machine.
FIG. 6 is a plan view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seedling separation claw 2 Seedling extrusion claw 3 Planting case 4 Rotary case 5 Rotary case shaft 6 Planting case shaft 7 Seedling tank 8 Case boss part 9 Extrusion cam 10 Adjuster
22 Fixed eccentric gear
26 Extrusion arm
27 Arm shaft
28 Cam Arm
29 Boss
30 opening
31 Seal
32 Mounting bolt
33 metal
37 Fixing bolt
50 boss
51 Bearing

Claims (2)

A rotary case ( 4 ) comprising a plurality of planting cases ( 3 ) having a seedling separation claw ( 1 ) for separating and holding seedlings in the seedling tank (7) and a seedling extrusion claw ( 2 ) for extruding the separated seedlings The rotary case shaft ( 5 ) of the fuselage can be moved and adjusted in the axial direction, and each planting case ( 3 ) can be moved and adjusted in the axial direction relative to the planting case shaft ( 6 ) of the rotary case ( 4 ). In the rotary seedling planting device of the seedling transplanter provided in the rotary casing (4), a fixed eccentric gear (22) integral with the fuselage is provided in the outer periphery of the rotary case shaft (5), and the fixed eccentric gear (22). Is provided so as to be movable along with the bearing (51) in the axial direction of the boss (50) integrally projecting on the side surface of the machine body, and along the planting case shaft (6) on the rear side of the planting case (3). The case boss (8) is integrally formed, and the case boss (8) Is attached to the planting case shaft (6) from the outer end side, and the case boss portion (8) is attached to the seedling pushing claw (2) and the pushing arm (26) for operating the seedling pushing claw (2). The extrusion arm (26) is pivotally supported on the planting case (3) by the arm shaft (27) and is planted on one side of the rear portion of the extrusion arm (26). A cam arm (28) slidably contacting the push cam (9) disposed on the case shaft (6) is integrally formed, and the push cam (9) is protruded from the rotary case (4) in the boss portion (29). Are fitted to the rotary case (4) to form an integral structure, and the extrusion cam (9), the boss portion (29), and the opening portion (30) formed on the rotary case (4) side of the planting case (3) A seal (31) is provided on the outer periphery of the boss (29), and the push cam (9) and cam arm (28) are connected to each other. Subosu portion (8) rotary NaeUe apparatus seedlings planting machine being characterized in that provided deviated to the rotary case (4) toward the side end portion with respect to the push-out arm (26) of. The planting case (3) is fixed with a pair of front and rear mounting bolts (32) to a metal (33) fixed with an adjustment tool (10) that can be moved and adjusted with respect to the planting case shaft (6). While the mounting bolt (32) is loosened, the relative position around the planting case shaft (6) between the metal (33) and the planting case (3) can be changed and adjusted. The rotary seeding device for a seedling planting machine according to claim 1, wherein a fixing bolt (37) screwed to the metal (33) is provided in the space between the bolts (32) .

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