JPH01304814A - Seedling planting unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a seedling planting device with a 1-turn machine equipped with a 7i planting tool attached to a 1-turn case.

Prior Art Previously, there was a seedling planting device for a rice transplanter as described in 111 in Utility Model Publication No. 48-26341 +14. A planting case in which the I and 7 extrusion mechanisms are installed is attached by the arm, and the spring that pushes the overnight extrusion rod in this case is the middle part of the interlocking rod that interlocks the operating cam and the seedling extrusion rod. ” was being pushed down from one side.

Problems to be Solved by the Invention In the conventional technology, due to the structure in which the planting case itself is attached, in which the seedling extrusion mechanism is internally installed using a crank and a swinging arm, the planting case itself is lengthened back and forth, and the planting claws are made longer. Since the planting trajectory was set so that it was 1 unit lower in side view, the part where the seedling extrusion mechanism was installed was also not visible after +'+if.
It wasn't a problem. However, 2 in the 1 rotation case
When installing the original planting case, unless the planting case itself is shortened as much as possible after 1) 1f, the front and rear planting cases and the planting claws will interfere, so the one-turn case should be large. However, increasing the size of the rotating case not only raises the center of gravity of the seedling planting device, resulting in an unstable situation, but also makes it difficult to rotate at high speeds, resulting in poor work efficiency.

Technical Means for Solving the Problems The present invention has taken the following technical means to solve the problems of the prior art described above.

That is, the rotating case 22 is attached to the distal end side of the planting drive shaft 23 protruding to the outside of the planting transmission case 18 so as to be rotated together with the planting drive shaft 23 in a skewered state, and the rotation case 22 is A planting drive shaft M is attached to the outer circumferential portion of the planting drive shaft 23.
A sun gear 29 that does not rotate freely is provided integrally with the tl+ case 18 side, a first play gear 30 that meshes with this sun gear 29, and a second planet gear 31 that meshes with this first planet gear 30 are provided. Second
The pitch circle of the sun gear 29 is not a perfect circle with respect to the axis of the planting drive shaft 23 so that the rotational speed of the planetary gear 31 and the rotating case 22 is the same, and the peripheral speed of the same rotation varies during one rotation. a cylindrical shaft 3 which is configured as such and is integral with the second planetary gear 31 and protrudes outward from the rotating case 22;
1a, and the camshaft 32, which passes through the cylinder of the cylinder shaft 31a and whose base side is integrally attached to the rotating case 22, is extended outward longer than the cylinder shaft 31a, and A planting case 35 is detachably fixed to the shaft 31a, and a seedling push-out operating cam 36 is attached to the tip side of the cam shaft 32, and the rear planting case portion of the operating cam 36 is formed into an arc shape. A hollow case part containing a seedling extrusion mechanism is integrally formed on the front side of the arc-shaped case part, and the 4-side part of this case part is formed so that the front side is higher, and a seedling extrusion shaft is installed inside the tip side of the hollow case part. The I-planting device is provided with a holding portion for a spring 42 that suppresses the spring 38.

Effects and Effects of the Invention According to this invention, the opening of the planting case 35 protruding from the rotating case 22 passes through the cylindrical shaft 32a, and the base side is attached to the rotating case 22 side for planting. In order to minimize the case of the cam part attached to the cam shaft 32 that extends into the case, the diameter of the case is made semicircular, and the back surface of the case is formed into an arc shape, and the planting case itself is shortened after iXf. Inflate the spring 42 of the seedling pushing mechanism toward the front end of the case. Since the two seedling planting devices 34° 34 are placed close to each other, the size of the rotating case itself can be reduced and a stable seedling planting device can be created. can be made small and highly efficient.

Embodiment An embodiment of the present invention will be explained based on FIGS. 1 to 5.

1 is a passenger relay V, 2 is a pair of left and right front wheels, 3 is a pair of left and right rear axles, 4 is an engine, 5 is a control seat, and 6 is a control handle. 7 is a steering operation frame, 8 is a main transmission case, in which power is transmitted from the engine 4 to the internal transmission, from which power is transmitted to the front wheels 2 and rear axle 3 via a drive shaft 9.10, and the power is transmitted to the PTO shaft 11 and the transmission It is provided so that power is transmitted via the shaft 12 to a portion of a rice transplanter 13, which will be described later.

Reference numeral 14 denotes a planting clutch lever, by which a main seedling planting clutch, which will be described later, is operated by one person.

15 is a lifting link mechanism, and 1 is a hydraulic cylinder device 16.
- The hitch 17 is moved up and down without rotating.

Reference numeral 18 denotes a planting transmission case, which is attached to the hitch 17.

Reference numeral 19 denotes a seedling mounting table, which is supported on the ``2'' side of the planting transmission case 18 so that the front side is tilted toward the 1; It is set up to do so. And this seedling mounting table 19
are partitioned into a predetermined width by partitions 20, 20, etc. in the left and right directions, and a plurality of seedling mounting tables 19a, 19b,
19c, 19d, and 19e.

Reference numeral 21 denotes a 111i receiving plate, which has an L-shape when viewed from the side, and is extended in the horizontal direction along the lower end side of the Aif mark I azure holder 19. ~1
Seedling division IT that can divide 9e seedlings] 21a, 21b, 2
1c, 21d, and 21e are provided.

22a, 22b, 22c, 22d, and 22e are rotating cases, and vertical transmission cases 18a, 18 protrude rearward and branch from the planting transmission case 18 at a predetermined interval in the left-right direction.
At the rear end sides of b and 18c, the front and rear intermediate centers thereof are attached to a planting drive shaft 23 so as to be rotated integrally with a key 23a.

24 is a gear wedged to the planting drive shaft 23; 25.
2f3 indicates a counter gear, and 27 indicates a human cassette block.

28 is a bearing metal, vertical transmission case 18a, L8b, 1
8c] was hit on the outside part of the d planting drive 11 J.
The seedling 23 is received via a bearing, and the outer end hole 28a through which the planting drive shaft 23 is inserted is inserted into the planting drive shaft 2.
It is eccentric with respect to the axis of 3.

29 is a sun gear, which has a hole 28a in the bearing metal 28.
The sun gear 29 is provided integrally with a boss portion 29a which is inserted into the boss portion 29a and is rotated by one turn.
The gear has a pitch circle eccentric to the axis of No. 3.

30.30 is a counter planetary gear, which is rotatably supported within the rotating cases 22a to 22e and always meshes with the sun gear 29.

Reference numeral 31 denotes a planetary gear, which is located on the tip side inside the rotating cases 22a to 22e, and is connected to the counter planetary gear 30.3.
It is aligned with 0. And, in this planetary gear 31,
A cylinder 31a is provided integrally with this, one end of which protrudes outward from the rotating case, and this cylinder 4i
11131a so that the shaft can be inserted into it.

A camshaft 32 is inserted into the cylindrical shaft 31a and crosses the inside of the rotating case 22, and one end of the camshaft is connected to the rotating cases 22a to 2.
It is fixed to a rotation stop plate 33 fixed to the outer wall surface of the planting transmission case 2e, and the other end protrudes outward from the Flii cylinder shaft 31a.

Numeral 34 is a seedling planting tool, which is made up of a planting case 35, a seedling extrusion operating cam 36, an interlocking rod 37, an extrusion shaft 38, an image separating claw 39, and the like. And, this planting case 35 is
- The cylinder shaft 31a is fitted onto the outer periphery of the cylinder shaft 31a which is integral with the star gear 31, and is fixed with a bolt to a metal 60 provided so that it can be moved slightly in the narrow direction of the boss by the Kotsu turbine 40 and fixed. It is provided so as to be rotated together with 31a.

This metal 60 has a fitting part 60a that is thrust into the planting case 35 and a flange part 60b that integrally fixes the planting case 35, and this flange part 60b and the planting case 35 are connected with bolts. It is fixed at 61.

The seedling push-out operation cam 36 is formed by forming the tip of the cam l1lf132 into a square shaft and fitting it into the cam shaft 32.
It is designed to rotate together with the And the said work Il
! The rear side planting case 35 portion of the I+ cam 36 is formed into an arc shape, and a hollow case portion in which the %ji extrusion operating mechanism is internally provided is integrally provided on the front side of this arc-shaped case portion.
The first side of this hollow case part is formed so that it becomes white as it goes from the arm storage part to the front side.

)l! The front and rear intermediate parts of the ll'JI rod 37 are rotatably received in the planting case 35 by pins 41, the paper side is provided so as to come into contact with the outer periphery of the cam 36, and the tip side is formed into a fork shape. There is. Incidentally, the bottle 41 is configured to be prevented from coming off on the inner surface of the flange portion 60b of the metal 60.

Reference numeral 38 denotes an extrusion shaft, which is supported on the tip side of the planting case 35 so as to be slidable in the 1-1: direction, and its lower end protrudes outside the case. , cut the outer periphery of one end of -1 into an oval shape,
The tip fork portion of the four-seat rod 37 is engaged here. Reference numeral 42 denotes a spring provided at the +'+ir end inside the case of the planting case 35, and a part of the +'I: (end 1 inside the case is extended to one side to form a spring holding part.

Here is part of the interior.

The I'1°1 separation claw 39 is a claw whose surface is n-shaped, and is detachably attached to the tip of the planting case 35.

1- As described, the seedling planting tool 34 is comprised of rotating cases 22a to 22e.
Two plants are attached to each of the plants and rotated so that when viewed from the side, a long planting trajectory (a) is created in the -d direction. Then, two seedling planting tools 34 provided in a single rotating case are grouped into one group.
In the example shown, A, B, and C.

It is made up of D and E 11'''I planting tool groups.

Reference numeral 43 denotes a drive shaft, which is installed in the planting transmission case 18 so as to be transmitted and rotated in the transverse direction.

1)? Driving sprockets 44, 44, 44. is fixed, and the input sprocket 27, 27, and
... and planting 1ψ! The ldr shaft 23 side is provided in such a way that it extends along the ldr shaft 23 side.

45 is a main I/I planted clutch, in which a drive clutch gear 46 with a clutch pawl that is transmitted and rotated from the prime mover side is freely rotatably attached to the drive shaft 43;
A driven clutch body 47 with a clutch pawl and a fixed position stop cam 47a is provided movably on the drive shaft 43 in a wedged state at 6, and springs into engagement with the drive clutch gear 46 side by a spring 48. Appendix Ilu+ A clutch pin 49 slidably provided on the case 18 is configured to be detachably connected to the fixed position stop cam 47a, and when the pin 49 comes into contact with the cam surface (b), it receives rotational force. The driven clutch body 47 escapes against the spring 48, and the clutch pawl is disengaged, thereby stopping the rotation of the drive shaft 43. In the example shown in Figure 1, the number of fixed position stop cams 47a is 2, which is the number of seedling planting tools 34 that are divided into two on the outer peripheral surface of the rotation and are attached to one of the rotation cases 22a, 22b, . . . It is configured.

It goes without saying that if three seedling planting tools 34 are provided in the rotating case 22, the number of fixed position stop cams 47a will be three.

50 is a clutch wire, which is connected to the planted clutch lever 1.
4 and the clutch pin 49.

Furthermore, on the same side, the L planting clutch 45 is connected to the planting transmission case 1.
8, but this is installed inside the main transmission case 8 to transmit the C force to the rice transplanter 13 side.
It goes without saying that the rotation may be stopped at a fixed position.

In the figure, 51 is the ground leveling flow 1-. Reference numeral 52 indicates leveling floats on both the left and right sides.

” - To explain the function of the example, each seedling mounting table 19a to 19e
When the engine 4 rotates each part by 1t11, the passenger towing vehicle 1 is propelled by the rotation of the front @2 and rear @3,
Part 13 of the rice transplanter is pulled by some of the insects caught by the soil leveling floats 51 and 52, and a force of 11 is applied from the PTO shaft 11 via the transmission shaft 12 from the main transmission case 8 side to the planting transmission case 18. It is transmitted to the human power axis ωj. The drive J shaft 43 is transmitted and rotated via the main planting clutch 45, and the planting drive shafts 23, 23, . . . are rotated from this drive shaft 43 via sprockets, chinos, etc. Then, each rotating case 22a to 22a rotates, and with this rotation, a counter y1. star gear 30.3
0 is rotated in the same way as the planet, and the planetary gear meshing with it 31.31
will be rotated. Therefore, the planetary gear 31
．． A fixed planting case main body 35 is rotated simultaneously with respect to the rotating cases 228 to 22e through a metal 60 fixed to the cylindrical shaft 31a integral with the cylindrical shaft 31a by a knot turbine 40, and Naturally, the integral camshaft 32,32 is not rotated by the gear 31, so the planting case body 35 is rotated due to the eccentric pitch circle of the sun gear 29 with respect to the push-out operation cam 36 fixed to the camshaft 32. Since the circumferential speed does not fluctuate, ri' is rotated four times. Therefore, the interlocking rod 37 is swung by the cam 36, and the extrusion shaft 38 is moved downward.

Then, the tip side of the seedling separation claw 39 attached to the planting case 35 operates while drawing a planting trajectory (a), and the attachment stop plate 21
Seedling table that intervenes from one side one after another and moves left and right] The seedlings in 9a to 19e are divided into individual plants and are busy with soil leveling floats 51 and 52. Plant it in the field. That is, seedling extrusion, 1il1
When 138 is located on the 11 side with respect to the planting case 35, the cam 36 and a part of the cam floor of the interlocking rod 37 come off when the seedling platform 11'7 is divided and plunged into the field. A spring 42 rapidly pushes the seedling into the soil.

In this embodiment, there are two i′ in the rotating case 22.
Since the f-planting tool 34 is attached, seedlings can be planted at high speed.

When the seedling planting is to be stopped next, such as when turning, the planting clutch lever 14 is operated to push in the clutch bin 49 via the wire 50, and the driven clutch body 47 is pushed in.
The fixed position stop F- of the cam 47a may be brought into contact with the cam surface (b) of the cam 47a. Then, the driven clutch body 47 moves against the spring 48, and the clutch pawl of the driven clutch 47 is disengaged from the clutch pawl of the 1ψd'J+ clutch gear 46, and the rotation of the 1ψ4!11 shaft 43 stops at that position]- do.

At this time, since the fixed position stop 1-cams 47a are provided in a number corresponding to the number of I'u planting tools 34 attached to one rotation case 22, the planting clutch lever 14 is moved to the stop side. When operated, the seedling planting tool 34 is always stopped immediately, and even though two seedling planting tools 34 are attached to one rotating case 22, the seedling planting tool 34 is stopped immediately after the stop operation is applied. An unfavorable situation such as the planting tool 34 dividing and planting i''ILi from the seedling mounting table does not occur.

The embodiment of transmission formation shown in FIG.
Planting drive shaft 2 installed at the rear end of a, 18b, 18c
3 was divided into left and right to form 23a and 23b, and this planting 1
ψdIll+MU23a, 23bk, connected by a freely rotatable intermediate bottle shaft that is inserted into the axis of the planting drive shaft, and has clutch pawls of the same phase 1, middle, - on the left and right sides.Claratis Prokera 1- 53 are provided.

Then, on the planting drive shafts 23a and 23b on both the left and right sides of this clutch sprocket 53, driven clutch bodies 54° 55 having the same configuration as the i-: +'+'i planting clutch 45 are attached.
is provided to constitute a sub-tonight planting taratch 56.56.

57a and 57b are sub-planting clutch pins.

And these sub-planting clutch bins 57a, 57b...
are connected to five ridge clutch levers 58a, 28b, . A clutch 56.56 with fixed position stop H type sub-1 helmet is provided so as to be in the "man" and "off" positions. In addition, fixed position stops provided on the driven clutch bodies 54 and 55 of this clutch 56 with sub-branch planting] Yucams 54a, 54a.

Two 55a and 55a are provided in the same way as the main seedling planting clutch 45. To explain the effects of this configuration, in general, when planting all the planting rows, the rice transplanter will dig out of the field,
If there are any remaining plants, plant some of the rows at the 6th stage of the final planting process and stop planting to avoid any remaining plants.

That is, among the ridge clutch levers 58a, 58b..., a suitable ridge clutch lever is operated in order to lower some 1.1"j planting rows closer to the ridge. Push in the sub-planting clutch bins 57a, 57b... Then, in the same way as the L-planting clutch 45 described above, the sub-planting clutch bins 57a, 57b...
The planting clutch 56 is turned off at the fixed position, and the rotating case 228, 22b, etc. of the seedling planting tool 34 is stopped, and planting can be stopped.

At this time, i<
As with the +'+'i planting clutch 45, the same number of fixed position stop positions as the I green planting tools 34 attached to the rotating case are provided, so the disengagement of the sub-I''I'1 planting clutch 56 is easy. Almost at the same time as the operation, the rotation of the planting tool 34 is stopped, so that after the stop 1 operation, the planter 34 is divided and planted. Don't let the 1B situation happen.

1. As explained above, in this invention, when attaching the 1'I'1 planting tool 34 to the rotation case 22, the first rotation case 22 is used. ,? +Φyu31. a and the cam Φ mountain 32 passing through the 1st meeting i + li, the planting case 35 is connected to the cylinder shaft 31
In a, the seedling extrusion operating cam 36 is attached to the cam shaft 32,
The rear side of the case that encloses the actuation cam 36 can be made into an arc shape, making it more compact. Since the lower movement range can be partially expanded and the seedling planting tool 34 can be shortened in the front-rear direction, the one-rotation case 22 itself can be downsized and a highly efficient 111τ planting device can be realized.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention; Fig. 1 is a side view, Fig. 2 is a plan view of the main parts, Fig. 3 is a simplified slope view of the Den III mechanism, and Fig. 4 is the main parts. 5 is a plan sectional view of the main part, FIG. 6 is a partially cutaway plan view of the main part, and FIG. 7 is a simplified slope view of the transmission mechanism. Symbols in the figure: 18 is a planting transmission case, 22 is an H-roll case,
23 is a planting drive shaft, 29 is a sun gear, 30 is a first idler gear, 31 is a second planetary gear, 31a is a cylinder shaft, 32 is a cam shaft, 35 is a planting case, 36 is an operating cam, 38 is Seedling extrusion shaft, 42 indicates a spring.

Claims (1)

[Claims] A planting drive shaft 23 protruding from the outside of the planting transmission case 18
The rotating case 22 is attached to the tip side of the planting drive shaft 23 in a skewered state so as to be rotated together with the planting drive shaft 23, and the planting transmission case 18 side and the outer peripheral part of the planting drive shaft 23 inside the rotating case 22 are attached to the planting drive shaft 23 in a skewered state. A sun gear 29 that does not rotate integrally is provided, a first planet gear 30 that meshes with this sun gear 29, and a second planet gear 31 that meshes with this first planet gear 30, and this second planet gear 31 and the The pitch circle of the sun gear 29 is configured not to be a perfect circle with respect to the axis of the planting drive shaft 23 so that the rotation speed is the same as that of the rotation case 22 and the rotation circumferential speed varies during one rotation. 2. A cylindrical shaft 31a that is integral with the planetary gear 31 and protrudes outward from the rotating case 22 is provided, and the cylindrical shaft 31a passes through the inside of the cylinder of the cylindrical shaft 31a, with the base side facing the rotating case 22.
A cam shaft 32 integrally attached to the cylinder shaft 31a is extended outward longer than the cylinder shaft 31a, and a planting case 35 is attached to the cylinder shaft 31a.
A seedling extrusion operating cam 36 is attached to the tip side of the cam shaft 32, and a rear planting case portion of this operating cam 36 is formed into an arc shape, and a seedling extrusion operation cam 36 is attached to the front side of the arc-shaped case portion. A hollow case part that houses a seedling extrusion mechanism is integrally formed, and the upper part of this case part is formed to be higher on the front side, and a holding part for a spring 42 that suppresses the seedling extrusion shaft 38 is provided inside the tip side of the hollow case part. A seedling planting device equipped with