JPH0755089B2 - Seedling planting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used in a rotary type seedling planting device.

[Conventional technology]

In order to reduce vibration and improve efficiency, it has been proposed to use a rotary type seedling planting device in place of the conventional crank type seedling planting device.

In this rotary type seedling planting device, a pair of planting nails alternately picks up seedlings at the same position and transplants them into mud. Therefore, it is said that the vehicle speed of the seedling planting machine can be doubled and the efficiency can be improved without increasing the damage of the seedlings while keeping the rotation speed of the planting claws unchanged.

In this rotary type, since a pair of planting cases equipped with planting claws swivel on the same rotation surface, it is necessary to provide each planting case separately in order to avoid contact with each other, thus increasing the size. There are drawbacks.

In order to solve this, Japanese Patent Application Laid-Open No. 60-244216 and the like propose that the case with a plant is bent in a complicated manner when viewed from above.

[Problems to be Solved by the Invention]

When the planting case is bent in a complicated manner as in the prior art, the weight of the planting case increases, and this increased weight is biased toward the planting claw side. Therefore, due to inertia during rotation of the planting case, the shaft, tooth shape, and uneven wear cause swinging at the tips of the planting claws, the size of the cut-off seedlings fluctuates, and the number of seedlings per plant varies. May occur.

This invention intends to solve the above-mentioned problems by reducing the weight of the planting case and strengthening the connection between the planting case and the planetary gears.

[Means for Solving the Problems]

In order to solve the above problems, the present invention fixes a rotating case 22 provided on a drive shaft 23 so that a plurality of planetary gears 31 and 31 rotate around the sun gear 29 while maintaining a similar posture. Then, the mounting members 60 and 60 are provided on the side of the rotating case 22 so as to rotate integrally with the planetary gears 31 and 31, and the mounting case has the planting claws 39 and 39 on each mounting member 60 and 60. 35, 35 are fixed to each other, and the planting claws 39, 39 rotate in the same posture as the rotating case 22 rotates, and the seedlings are placed one by one from the seedlings placed on the seedling placing table 19. In the seedling planting device that operates so as to remove the seedlings, the planting cases 35, 35 are mounted on the rotation case 22 side of the planting claws 39, 39 so as to project from the locus A and in a side view. By providing the parts 35a and 35a, each of the planted cases 35
-35 is a seedling planting device characterized in that the attachment portions 35a, 35a of 35 and the attachment members 60, 60 are joined and fixed.

[Action]

This seedling planting device configured as above is a rotating case
With the rotation of 22, each of the planting cases 35, 35 turns in the same posture. Then, by turning the respective planting cases 35, 35, the respective planting claws 39, 39 are selected from the seedlings (mat seedlings) placed on the seedling placing table 19.
The seedlings are taken, descended, and transplanted in mud.

Here, the planting cases 35 and 35 having the planting claws 39 are swung in the same posture as the rotating case 22 rotates, and when one planting case 35 is descending, the other planting case 35 is swung. Case
35 rises. At this time, the tip of the planting claw 39 provided on the ascending planting case 35 rises through the rear part of the planting claw 39 of the descending planting case 35.

〔effect〕

As described above, according to the present invention, the locus A of the mounting member 60, 60 that rotates integrally with the planetary gears 31, 31 is closer to the rotating case 22 than the locus a of the planting claw 39 and is a side view thereof. Since the attachment parts 35a, 35a of the planting cases 35, 35 projecting more than B are joined and fixed, the tip of the ascending planting claw 39 does not project from the descending planting case 35. The part is passed so as to overlap the planting case 35 when viewed from the side. Therefore, the planting case 35 can be made lightweight without having a complicated shape as in the prior art.

At the same time, the planted cases 35, 35 are firmly fixed to the planetary gears 31, 31 because they are fixed to the mounting members 60, 60 by the mounting portions 35a, 35a projecting on the respective rotating case 22 sides. And, these synergistically improve durability, reduce the occurrence of uneven wear, and reduce the risk of fluctuations in the cut-off amount of the nursery bed due to duck plucking in the joining direction of the planting claws 39, 39. Can be planted.

〔Example〕

 Next, examples of the present invention will be described.

As shown in FIG. 1, a link 15 projects rearward from the traveling vehicle body 1 and a seedling planting device 13 is attached to the rear end thereof to form a riding type planting machine.

The traveling vehicle body 1 is configured as follows. A pair of front wheels 2 and rear wheels 3 are arranged in front and rear, respectively, and after power of the central prime mover 4 is changed in the transmission case 8, the power is transmitted to the front wheels 2 by the transmission shaft 9 and to the rear wheels 3 by the transmission shaft 10. By transmission, these rotate on the paddy field in the paddy field, and the traveling vehicle body 1 propels them. The post 7 extends upward from the tip of the machine,
When the handle 6 above it is operated, the front wheels 2 are steered. A seat 5 is provided on the prime mover 4.

A mounting frame 17 is provided at the rear end of the link 15 and can be moved up and down by the hydraulic device 16.

The seedling planting device 13 is configured as follows. Transmission case 18
The center front end of is attached to the mounting frame 17 by a rolling shaft in the front-rear direction. A seedling stand 19 is provided above the transmission case 18 in a forwardly tilted manner so as to reciprocate left and right.
As shown in FIG. 2, the seedling mounting table 19 has an upper surface partitioned by front and rear side walls 20 ..., and 5 seedlings are placed on each seedling mounting surface 19a to 19e.
The mat seedlings are placed side by side. It is fixed to the transmission case 18 below the seedling receiving plate 21 having an L-shaped section or the seedling placing table 19, so that the ends of the mat seedlings on the seedling placing surfaces 19a to 19e reciprocate left and right on the seedling receiving plate 21. It has become. Five take-out openings 21a to 21e are provided on the seedling receiving plate 21 at equal intervals so that the planting claws 39, which will be described later, pass through from the top to the bottom. Five sets of planting tools 34 ... Are arranged after the respective outlets 21a to 21e, and the end of the mat seedling is cut off and transplanted to the mud below. The central float 51 and the pair of left and right side floats 52, 52 are arranged under the transmission case 18, slide on the mud surface by the forward movement of the traveling vehicle body 1, and the planting equipment 34 ... preliminarily prepares the mud for transplanting seedlings. It is made like. Then, the power of the prime mover 4 reaches the inside of the transmission case 18 via the PTO shaft 11 and the transmission shaft 12, and the seedling mounting table 19 and the planting equipment 34 ... Are driven as described above. The lever 14 is attached to the post 7, the wire 50 is pulled by the operation thereof, and the clutch 45 in the transmission case 18 interrupts the transmission power. Lever 58a / 58b
Is installed in the seedling planting device 13 and pulls the wire 59 ...
It is designed to intermittently power 34.

The vertical portions 18a, 18b, 18c of the transmission case 18 extend under the seedling receiving plate 21 and extend to the rear end portions of the planting tools 34.
... is placed. In the following, since the left and right are symmetrical or the same,
One of them will be described.

As shown in FIG. 4, the drive shaft 23 is provided laterally at the rear end of the vertical portion 18a of the transmission case 18, and the rotation of the prime mover 4 is rotated by the toothed wheel 27,
It is adapted to be transmitted through the gears 26, 25 and 24 and rotate counterclockwise in FIGS. 1 and 3. Rotating case 22
Is fixed to the tip of the drive shaft 23 with a key 23a. The sun gear 29 is rotatably attached to the drive shaft 23, and the boss 29a extending from this to the transmission case 18 side is eccentrically fitted into the hole 28a of the metal 28 integral with the transmission case 18, and the drive shaft 23 rotates, The sun gear 29 is designed not to rotate. A pair of planetary gears 31 ・ 31 are arranged at symmetrical positions on the outer periphery of the rotating case 22, and the intermediate gears 30 ・ 30 mesh with the sun gear 29, and the number of teeth of all the gears 29 ・ 30 ・ 31 is With the same configuration, when the rotating case 22 makes one counterclockwise rotation, it makes one rotation in the opposite direction with respect to the rotating case 22 and maintains the same posture with respect to the ground. The pitch circles of the gears 29, 30, and 31 are eccentric with respect to the center of rotation, and the planetary gears 31 and 31 do not rotate with respect to the ground when turning around the sun gear 29, but their axes It is designed to swing around the heart. A pair of cylindrical shafts 31a, 31a extends from the respective planetary gears 31, 31 to the outside of the rotating case 22, and a mounting member 60 having flange-shaped mounting portions 60b, 60b at its projecting ends.
-60 is firmly fixed with cotters 40 and 40. The pair of planting cases 35, 35 are provided with mounting portions 35a, 35a projecting on the side of the rotating case 22 more than the locus A of the respective planting claws 39, 39, and the mounting portions 35a, 35a are mounted respectively. With the bosses 60a, 60a fitted to the wall surface of the planting case 35, 35 joined to 60b, 60b, tightened with bolts 61 ...
・ 35 is fixed to the mounting members 60 ・ 60.

As shown in FIG. 3, the planting claw 39 is attached to the planting case 35, and the push-out claw 38a is configured to move up and down at the tip end portion thereof to form the planting tool 34.

That is, the planting claw 39 is fixed downward on the surface of the planting case 35 on the seedling table 19 side, and the pushing claw 38 fixed to the lower end of the pushing rod 38.
The a is designed to move up and down at its lower end.
The push rod 38 is pushed down by the spring 42. As shown in FIG. 4, the cam shaft 32 is arranged at the center of the cylindrical shaft 31a and the planetary gear 31, one end of which is fixed to the rotating case 22 by the plate 33, and the extruding cam 36 is fixed to the other end. The lever 37 is attached to the planting case 35 so as to swing around the pin 41, both ends of which are engaged with the pushing cam 36 and the pushing rod 38, and the tip of the planting claw 39 has the locus a in FIG. When turning counterclockwise therethrough, the lever 37 swung by the push-out cam 36 compresses the spring 42 and pulls up the push-out pawl 38a when the lower end of the locus a is passed.
When passing through the seedling intake 21a and reaching the lower end of the track a, a lever 37
The spring 42 pushes down the pushing claw 38a away from the protruding portion of the pushing cam 36. Then, the seedlings are cut off when passing through the seedling intake 21a, and the seedlings are transplanted to the mud at the lower end.

In addition, as shown in FIG. 4, side surfaces of the pair of planting cases 35, 35.
35a / 35a is a rotating case 22 rather than the rotating surface of the planting claw 39/39.
It is located close to the plant, and part of it protrudes.
-The rear 30 of the planting case 35 has a shape in which the 35 face is greatly cut away. And a pair of planting cases 35.
When 35 turns through the trajectory a in Fig. 3, the tip of the planting claw 39 in the ascending stroke comes to pass through the notched portion of the planting case 35 in the descending stroke. There is.

[Brief description of drawings]

FIG. 1 is a side view of a seedling planting machine according to the present invention, FIG. 2 is a plan view of the seedling planting apparatus, FIG. 3 is an enlarged cutaway side view of a part thereof, and FIG. Is. Explanation of code 19 …… Seedling stand, 22 …… Rotating case 23 …… Drive shaft, 29 …… Sun gear 31 …… Planetary gear, 35 …… Planting case 35a …… Mounting part, 39 …… Planting claw 60 …… Mounting member, 60a …… Mounting part B …… Locating tip of planting claw

Claims (1)

[Claims] 1. A rotating case 22 provided so that a plurality of planetary gears 31 and 31 rotate around the sun gear 29 while maintaining a similar posture, is fixed to a drive shaft 23, and each planetary gear 31. 31.Installing members 60, 60 are provided on the side of the rotating case 22 so as to rotate integrally with 31, and the fixing cases 35, 35 having the fixing claws 39, 39 are fixed to the respective fixing members 60, 60. Each planting claw 39.
In the seedling planting device in which 39 rotates in the same posture as the rotating case 22 rotates to take seedlings one by one from the seedlings placed on the seedling stand 19, Case 35
35 is provided with mounting portions 35a and 35a which are located on the side of the rotating case 22 with respect to the locus B of the planting claws 39 and 39 and project from the locus B in a side view. A seedling planting device characterized in that the portions 35a, 35a and the mounting members 60, 60 are joined and fixed.