JP2853713B2 - Seedling planting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling planting apparatus provided with a plurality of seedling planting tools on a rotating case. 2. Description of the Related Art Conventionally, there has been proposed a seedling planting apparatus in which a plurality of seedling planting tools are provided on a rotating case, but the seedling planting tool is firmly and accurately mounted. It wasn't even taken into account. Further, if the seedling planting tool is not firmly and accurately assembled, there is a problem that the seedling planting device does not work properly. [0003] In order to solve the above-mentioned problems, the present invention protrudes to one side of a rotating case 22 driven and rotated, and rotates with the rotation of the rotating case 22. A seedling planting apparatus in which a seedling planting tool 34 is attached to each of a plurality of planting shafts 31a to be operated and the seedling planting tool 34 operates to plant seedlings in a field by rotation of the rotating case 22. At the time of planting seedlings, the seedlings are pushed out to the field by a seedling pushing-out operation cam 36 fixed to the seedling planting tool 34 with respect to the rotating case 22 and arranged in the case body 35 of the seedling planting plant 34. An actuated seedling pushing body 38a is provided, and the seedling pushing-out operating cam 36 is provided at a tip end of a camshaft 32 fixed to the rotating case 22 by being inserted into a tubular planting shaft 31a. Interlocking which operates by contacting the outer periphery of seedling pushing operation cam 36 Case body 35 of seedling attachment 34 supporting rod 37
Is fixed to a flange portion 60b provided on a portion of the planting shaft 31a protruding from the rotating case 22 in a state where the seedling pushing-out operation cam 36 is disposed inside, and the cam shaft 32 is fixed to the flange portion 60b. It is a seedling planting device characterized by being supported via a bearing 62. [0004] The seedling planting apparatus according to the present invention comprises a plurality of seedlings protruding from one side of a rotating case 22 driven and rotated and rotating with the rotation of the rotating case 22. In a seedling planting apparatus, a seedling planting device 34 is attached to each of the shafts 31a, and the seedling planting device 34 operates to plant seedlings in a field by rotation of the rotating case 22. 34,
A seedling extruding body 38a which is fixed to the rotating case 22 and is operated by a seedling extruding operation cam 36 arranged in the case body 35 of the seedling planting tool 34 to push the seedling to the field at the time of seedling planting is provided. Therefore, the seedlings can be planted quickly and reliably. In addition, the seedling pushing-out operation cam 36 is inserted into the cylindrical planting shaft 31a to rotate the rotating case 22.
A case main body 35 of a seedling planting tool 34 for supporting an interlocking rod 37 which is provided at the tip end of a cam shaft 32 fixed to 31a
The seedling pushing-out operation cam 36 is fixed to a flange portion 60b provided at a portion protruding from the rotating case 22 in a state where it is disposed inside, and the cam shaft 32 is fixed to the flange portion 60b.
Of the planting shaft 31
a, the seedling pushing operation cam 36
The case main body 35 of the seedling planting tool 34 supporting the interlocking rod 37 is firmly and accurately mounted, and the seedling pushing-out operation cam 36 inserted into the tubular planting shaft 31a is provided. The seedling pushing body 38a can be properly operated by the seedling pushing-out operation cam 36. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 is a passenger towing vehicle, 2 is a pair of left and right front wheels, 3 is a pair of left and right rear wheels, 4 is an engine, 5 is a control seat, and 6 is a control handle. Reference numeral 7 denotes a steering operation frame, and 8 denotes a main transmission case, which is transmitted from the engine 4 to an internal transmission, from which power is transmitted to the front wheels 2 and the rear wheels 3 via drive shafts 9 and 10, the PTO shaft 11 and the transmission shaft. Power is transmitted to a rice transplanter 13 described below via the power supply 12. Reference numeral 14 denotes a planting clutch lever by which a main seedling planting clutch, which will be described later, is turned on and off. Reference numeral 15 denotes a lifting link mechanism, which is a hydraulic cylinder device 16.
To move the hitch 17 up and down. 1
Reference numeral 8 denotes a planting transmission case, which is mounted on the hitch 17. Reference numeral 19 denotes a seedling mounting table, and the planting transmission case 1
8 is tilted and supported so that the front side is upward,
It is provided so as to move left and right by a reciprocating lateral movement device in the planting transmission case 18. And this seedling mounting table 19
Are divided into predetermined widths by a partitioning body 20 in the left and right lateral direction, and a plurality of seedling mounting tables 19a, 19b, 19c, 1
9d and 19e. Numeral 21 denotes a seedling receiving plate, which is provided in a substantially L-shape when viewed from the side, and is elongated in the lateral direction along the lower end side of the seedling mounting table 19. Tables 19a to 19e
Opening 21a / 21b / 21c / 2 where seedlings can be split
1d and 21e are provided. 22 (22a / 22b
Reference numerals 22c, 22d, and 22e) denote rotating cases, which are provided at predetermined intervals in the left-right direction from the planting transmission case 18 and protrude rearward from the vertical transmission cases 18a, 18b, and 18c. Is mounted on the planting drive shaft 23 so as to be integrally rotated by a key 23a. Reference numeral 24 denotes a gear wedge-fitted to the planting drive shaft 23, 25 and 26 denote counter gears, and 27 denotes an input sprocket. Reference numeral 28 denotes a fixed member,
a, 18b and 18c, which are fixed to the outer portions of the shaft 23, and which support the planting drive shaft 23 via a bearing. The distal end 28a of the fixing member 28 through which the shaft 23 is inserted is fixed with respect to the axis of the shaft 23. Is eccentric. Reference numeral 29 denotes a sun gear, which is integrally provided with an engaging portion 29a which is inserted into and engaged with the distal end portion 28a of the fixing member 28 and is prevented from rotating. The sun gear 29 is provided with the planting drive shaft. The gear is such that the pitch circle does not become a perfect circle with respect to the axis of 23. The fitting hole 28b for inserting the fixing member 28 into the rotating case is larger than the outer diameter of the sun gear 29, so that the sun gear 29 can be inserted and removed. Reference numerals 30 and 30 denote counter planetary gears which are rotatably supported in the rotary case 22 and are always engaged with the sun gear 29. Reference numeral 31 denotes a planetary gear, which is located at the tip end side in the rotary case 22 and meshes with the counter planetary gears 30. And
The planetary gear 31 has a tubular planting shaft 3 integrated therewith.
1a is provided, one end of which protrudes outward from the rotating case, and is configured so that a shaft can be inserted into the planting shaft 31a. Reference numeral 32 denotes a cam shaft, which is inserted into the planting shaft 31a and traverses the inside of the rotating case 22, and one end thereof is fixed to an outer wall portion of the rotating case 22 on the planting transmission case side. And the other end protrudes outward beyond the planting shaft 31a. Reference numeral 34 denotes a seedling planting tool, a planting case main body 35, a seedling pushing operation cam 36, an interlocking rod 37, and a pushing shaft 3
8 and seedling separation nails 39. The planting case body 35 is fitted to the outer periphery of the planting shaft 31a integral with the planetary gear 31, and is provided with a metal 60 provided so as to be slightly moved in the axial direction of the boss with the cotter pin 40 and fixed. To the planting shaft 31a.
It is provided so that it may be rotated integrally with. The metal 60 is provided with a fitting portion 60a protruding into the planting case body 35 and the planting case body 3
5 is integrally fixed, and the flange 60b and the planting case main body 35 are bolted to each other.
It is fixed at 1. The seedling pushing operation cam 36 is formed so that the tip end of the camshaft 32 is formed in a square axis, fitted to the same, and rotates integrally with the camshaft 32. In addition, as clearly shown in FIG.
b is supported via a bearing 62. The interlocking rod 37 is rotatably received on the planting case 35 by a pin 41 at the front and rear intermediate portion, and the base side is the cam 3.
6 is provided so as to be in contact with the outer periphery, and the tip side is formed in a fork shape. The pin 41 is formed so as to be prevented from being pulled out on the inner surface of the flange portion 60b of the metal 60. Numeral 38 denotes an extrusion shaft, which is slidably supported in the vertical direction on the tip side of the planting case 35, the lower end of which protrudes outside the case. This lower end is formed as a seedling extruded piece 38a as a seedling extruded body. The outer periphery of the upper end portion is partially cut into an oval shape, and the leading end fork of the interlocking rod 37 is engaged here. 42 is a spring. The seedling separating claw 39 is detachably attached to the tip of the planting case 35. Seedling attachment 3 as described above
Reference numeral 4 denotes a planting locus which is attached to each of the rotating cases 22.
It is configured to be operated by drawing. The two seedling attachments 34 provided in a single rotating case are grouped into one group, and in the example shown in the figure, the seedling attachments A, B, C, D, and E are formed. Reference numeral 43 denotes a drive shaft, which is the planting transmission case 18;
The drive sprockets 44, 44, 44 are fixed to the root portions of the vertical transmission cases 18a, 18b, 18c so as to be transmitted and rotated therein, and the input sprockets 27,. Is rotated so as to be transmitted on the planting drive shaft 23 side. Reference numeral 45 denotes a main seedling planting clutch. A drive clutch gear 46 with a clutch pawl, which is driven and rotated from the prime mover side, is freely rotatably attached to the drive shaft 43. The drive clutch gear 46 has a clutch pawl and a fixed position stop cam 47a. The driven clutch body 47 is provided so as to be movable in a wedge state on the drive shaft 43, and is resiliently engaged with the drive clutch gear 46 by a spring 48, and a clutch pin 49 slidably provided on the planting transmission case 18. When the pin 49 is brought into contact with the cam surface (b), the spring 48 receives the rotational force and is fixed to the fixed position stop cam 47a.
, The driven clutch body 47 is released, the escape clutch pawl is disengaged, and the rotation of the drive shaft 43 is stopped. In the illustrated example, the number of the fixed position stop cams 47a is two, which is the number of the seedling attachments 34 that are equally divided into two on the rotating outer peripheral surface and are attached to one of the rotating cases 22. . It is needless to say that if three seedling planting tools 34 are provided on the rotating case 22, the number of fixed position stop cams 47a is three. 50 is a clutch wire,
The planting clutch lever 14 and the clutch pin 49 are connected. In the illustrated example, the main planting clutch 45 is provided in the planting transmission case 18. However, the main planting clutch 45 is provided in the main transmission case 8 so that the rotation of the PTO shaft 11 that transmits power to the rice transplanter 13 is fixed. Needless to say, the configuration may be such that it is stopped immediately. In the figure, reference numeral 51 denotes a leveling float at the center, 52
Are the leveling floats on both sides. The operation of the above example will be described. When the seedlings are placed on the seedling mounts 19a to 19e and the respective parts are rotated by the engine 4, the towing vehicle 1 is driven by the front wheel 2 and the rear wheel 3
Of the rice transplanter is partially towed by the leveling floats 51 and 52, and the towing is performed.
Power is transmitted from the O shaft 11 via the transmission shaft 12 to the input shaft in the planting transmission case 18 from the main transmission case 8 side. Then, the drive shaft 43 is driven and rotated via the main planting clutch 45, and the planting drive shaft 23 is rotated from the drive shaft 43 via a sprocket, a chain, and the like. Then, each rotating case 22 rotates, and with this rotation, the counter planetary gears 30, 30 around the sun gear 29.
Are planetary-rotated, and the planetary gears 31 that mesh with this are rotated. Therefore, the planetary gear 31
The planting case body 35 fixed to the planting shaft 31a with the cotter pin 40 on the planting shaft 31a integral with the rotating case 22 is rotated with respect to the rotating case 22, and the camshaft 32 integral with the rotating case 22 is formed. 32 is naturally not rotated by the gear 31. Therefore, the peripheral speed fluctuates due to the eccentric pitch circle of the sun gear 29 with respect to the extruding operation cam 36 fixed to the cam shaft 32. It will be rotated while. Therefore, the interlocking rod 37 swings by the cam 36, and the pushing shaft 38 moves up and down. Then, the tip side of the seedling separating claw 39 attached to the planting case main body 35 operates in accordance with the planting locus (a), and the seedling receiving openings 21a to 21e of the seedling receiving plate 21 are successively moved from above. Seedling table 19a to 19 intervening and reciprocating left and right
e) Divide the seedlings by one stock at a time,
Planting in the field scene which was leveled by. That is, seedling pushing shaft 3
When the seedling 8 is located above the planting case 35, the seedlings are divided from the seedling mounting table, and when the seedlings protrude into the field scene, the cam 36 and the cam floor of the interlocking rod 37 are disengaged and the spring 42
The seedlings are quickly pushed into the soil. Further, the seedling planting apparatus projects seedlings to one side of a rotating case 22 which is driven and rotated, and is provided on each of a plurality of planting shafts 31a which rotate with the rotation of the rotating case 22. The attachment 34 is attached, and the seedling attachment 34 is turned into a rotating case 2.
In the seedling planting apparatus constructed to operate to plant seedlings in the field by the rotation of 2, the case main body 35 of the seedling planting tool 34 fixed to the rotating case 22 with respect to the seedling planting tool 34. Since the seedling pushing body 38a which operates so as to push the seedlings to the field at the time of planting the seedlings by the seedling pushing operation cam 36 disposed therein is provided, the seedlings can be planted at high speed and reliably. In addition, the seedling pushing-out operation cam 36 is inserted into the cylindrical planting shaft 31a and the rotating case 22 is rotated.
A case main body 35 of a seedling planting tool 34, which is provided at a distal end of a cam shaft 32 fixed to the 31a
The seedling pushing-out operation cam 36 is fixed to a flange portion 60b provided at a portion protruding from the rotating case 22 in a state where it is disposed inside, and the cam shaft 32 is fixed to the flange portion 60b.
Of the planting shaft 31
a, the seedling pushing operation cam 36
The case main body 35 of the seedling planting tool 34 that supports the interlocking rod 37 that is actuated is firmly and accurately mounted, and the seedling pushing-out operation cam 36 that is inserted into the cylindrical planting shaft 31a. The camshaft 32 for supporting the seedling is properly supported, and the seedling pushing-out operation cam 36 allows the seedling pushing body 38a to operate properly.

[Brief description of the drawings] [Fig. 1] Side view of a riding rice transplanter FIG. 2 is a plan view of a main part of a riding rice transplanter. FIG. 3 is a simplified perspective view of a transmission mechanism. FIG. 4 is a side sectional view of a main part. FIG. 5 is a plan sectional view of a main part. [Explanation of symbols] 22: Rotating case 31a: Planting shaft 32: Cam shaft 34: Seedling plant attachment 35: Planting case body 36: Seedling pushing operation cam 38a: Extruded seedling 60b: Flange part

Claims (1)

(57) [Claims] A seedling planting tool 34 is attached to each of a plurality of planting shafts 31a that project to one side of the rotating case 22 that is driven and rotated and that rotates with the rotation of the rotating case 22. Is configured to operate to plant seedlings in a field by rotation of the rotating case 22. The seedling mounting tool 34 is fixed to the rotating case 22 with respect to the seedling mounting tool 34.
Seedling pushing operation cam 36 arranged in the case body 35
A seedling extruding body 38a that operates so as to extrude seedlings into a field when planting seedlings is provided, and the seedling extruding operation cam 36 is
The rotating case 2 is inserted through the planting shaft 31a provided in a cylindrical shape.
A case main body 35 of a seedling planting tool 34 which is provided at a tip portion of a cam shaft 32 fixed to 2 and supports an interlocking rod 37 which operates by contacting the outer periphery of the seedling pushing operation cam 36 is planted. Axis 31
a, the seedling pushing operation cam 36 is fixed to a flange portion 60b provided at a portion protruding from the rotating case 22 in a state where the cam shaft 32 is disposed inside the flange portion 60b.
b. The seedling-planting device, wherein the seedling-supporting device is supported on the b.