JP2586852B2 - Transplant device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter such as a rice transplanter or a vegetable transplanter.

[0002]

2. Description of the Related Art Japanese Patent Application No.
-19741 (Japanese Utility Model Application Laid-Open No. 61-110220) has a prior application, which includes a flat mounting formed on a rotating shaft mounted on a rotating case rotatably mounted on an airframe. A transplanting device in which a seedling transplanting tool having a transplanting nail attached to a portion is fixed is disclosed.

[0003]

The transplanting device of the above-mentioned prior application is designed to cope with a case where the position of the seedling transplanting nail provided on the rotating case with respect to the machine body is different due to a production error or an assembly error of each member. It has not been done and cannot be transplanted with proper seedlings. Further, when the seedling transplantation tool was removed from the rotating case, the mounting portion of the seedling transplantation tool was largely open to the outside because a flat attachment portion was formed at the shaft end of the rotating shaft itself. State and oil
Removal work must be performed while taking into account grease leakage, etc., and workability is extremely poor.In addition, the seedling transplant tool is removed with the cam body inside the seedling transplant tool attached to the rotating shaft side. Therefore, when the seedling transplantation tool is reattached, the position of the cam body and the member operated by the cam body must be adjusted, and the workability is further deteriorated.

[0004]

According to the present invention, a rotary shaft 41a is rotatably supported by a rotary case 28 driven and rotated by a drive shaft 35 in order to solve the above-mentioned problems of the prior art. In the transplantation device in which the seedling transplantation tool 29 having the transplanting nail 48 is mounted on the rotating shaft 41a, the rotating case 28
The rotation speed during one rotation of the rotating shaft 41a is changed by a gear transmission mechanism provided therein so that the transplanting claw 48 of the seedling transplanting tool 29 mounted on the rotating shaft 41a has a predetermined seedling planting posture. The cam body 45 for moving the seedling extruded body 47, which operates so as to release the seedling of one strain divided and held from the seedling placed in the seedling tank 20 on the soil surface, from the seedling placed on the seedling tank 20, is moved by the interlocking mechanism A. The cam shaft 42 to be rotated is provided so as to rotate integrally with the rotating case 28, and the seedling transplanting tool 29 is fixed to the hollow case 44 containing the interlocking mechanism A and the cam body 45 and the side surface of the hollow case 44. A fitting hole 52a formed in the mounting member 52.
Is inserted into the rotating shaft 41a from the side and fixed by a fixing tool 49 so that the left and right mounting positions can be adjusted.

[0005]

According to the present invention, there is provided a transplantation in which a rotating shaft 41a is rotatably supported on a rotating case 28 driven and rotated by a driving shaft 35, and a seedling transplanting tool 29 having a transplanting claw 48 is mounted on the rotating shaft 41a. In the apparatus, the seedling transfer tool 2 mounted on the rotating shaft 41a by changing the rotation speed during one rotation of the rotating shaft 41a by a gear transmission mechanism provided in the rotating case 28.
9, so that the transplanting nails 48 are separated from the seedlings placed in the seedling tank 20 when the transplanting nails 48 are separated from the seedlings placed in the seedling tank 20 when transplanting them to the soil surface. A cam body 45 for moving an actuated seedling extruded body 47 by an interlocking mechanism A
Is provided so as to rotate integrally with the rotating case 28, and the seedling transplanting tool 29 is fixed to the hollow case 44 in which the interlocking mechanism A and the cam body 45 are housed and the side surface of the hollow case 44. The mounting hole 52a provided in the mounting member 52 is fitted into the rotary shaft 41a from the side and fixed by the fixing tool 49 so that the right and left mounting positions can be adjusted. Even if production errors or assembling errors occur, the seedling transplanting tool 29 can be mounted on the machine by adjusting the left and right positions to the proper mounting position, so that the proper seedling transplantation work can be performed and high-performance seedlings can be obtained. You can get a planting machine.

Further, the seedling transplanting tool 29 can be attached to or detached from the rotating shaft 41a of the rotating case 28 with the attaching member 52 attached to the side surface of the hollow case 44 in which the interlocking mechanism A and the cam body 45 are housed. It is possible to obtain a transplanting device with good production and repair workability.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A riding type rice transplanter according to an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a passenger towing vehicle,
A front transmission case 3 and a rear transmission case 4 are provided below the flat floor 2, and a pair of left and right front wheels 5.5 are driven and rotated via a front axle case on both left and right sides of a rear portion of the front transmission case 3. A transmission body 6 is attached to the left and right sides of the rear transmission case 4 to provide rear wheels 7.7, and a frame 8 for attaching an operation lever and the like to a front portion of the flat floor 2.
And a handle 9 is provided via a steering post, and a cover 11 that covers the engine 10 behind the handle 9 is provided.
, And the control seat 12 is mounted thereon.

Numerals 13 denote support columns, which are erected at predetermined intervals on the left and right sides on a connecting frame 14 connecting the left and right transmission cases 6.6. Reference numeral 15 denotes an elevating link in which the bases of a pair of left and right lower links 15a, 15a and a single upper link 15b are pivotally connected to the columns 13, 13 via pins, and the distal ends are connected by vertical links 16, and The link 15 is configured to be vertically turned by a hydraulic cylinder device 17.

Reference numeral 18 denotes a transplanter, which comprises a transmission case 19, a seedling tank 20 reciprocating right and left, a transplanter 21, and leveling floats 22, 23, and 23 at the center and sides.
The left and right intermediate parts of the transmission case 19 are freely rotatably mounted on a support 24 integral with the vertical link 16 via a support shaft 25. The transmission case 19 has a sub-transmission case 19b, 19b
19b and a vertical transmission case 19c, 19c, 1 extending rearward.
9c.

Numeral 26 denotes a seedling receiving frame, which extends laterally along the lower end of the seedling tank 20 so that the seedlings of the seedling tank 20 divided by the partitioning body can be divided. Seedling divisions 27 are provided. The transplant device 21
Consists of a rotating case 28 and a seedling transplantation tool 29, and is configured as follows. That is, the rotating case 28 is supported by the vertical transmission cases 19c, 19c, 19c of the transmission case 19, and the chain 30, the sprocket 31, the gear 32,
It is attached via a key 36 to a drive shaft 35 which is driven and rotated by 33 and 34.

Reference numeral 37 denotes a bearing metal.
The drive shaft 35 is fixed to the outside of the shafts 19c, 19c and 19c. The drive shaft 35 is supported via a bearing, and the outer end hole 37a through which the shaft 35 is inserted is eccentric with respect to the shaft 35. Reference numeral 38 denotes a sun gear, which is integrally provided with a boss portion which is inserted into the hole 37a of the bearing metal 37 and is prevented from rotating by a key 39. The sun gear 38 is provided on the shaft a of the drive shaft 35. It is an eccentric gear.

Numerals 40 and 40 denote counter planetary gears which are always engaged with a sun gear 38 rotatably supported in the rotary case 28. Reference numeral 41 denotes a planet gear, which is supported by the rotating case 28 and meshes with the counter planet gears 40. One end of a rotating shaft 41a integrated with the planetary gear 41 projects outside the rotating case 28, and the shaft of the rotating shaft 41a is hollow so that the shaft can be inserted. Has become.

Reference numeral 42 denotes a cam shaft, which is inserted into the hole of the rotary shaft 41a, one end of which is fixed to the inside of the rotary case 28 by a detent plate 43, and the other end of which is more outward than the rotary shaft 41a. It is protruding. The seedling transplant tool 29 is a hollow case 4
4 and a mounting member 52, an interlocking mechanism A including a cam body 45 and an interlocking rod 46 provided in the case, a seedling extruded body 4
7, and a transplant nail 48 or the like.

The seedling transplanting tool 29 has a fitting hole 52a provided in a mounting member 52 fixed to the hollow case 44 with bolts by using a rotating shaft 4 integrated with the planetary gear 41.
It is provided so that it can be fitted to the outer periphery of 1a from the side and can be moved and fixed in the axial direction of the rotating shaft 41a with a knock pin 49 as a fixture, and can be rotated integrally with the rotating shaft 41a when attached. Have been.

The seedling pushing interlocking mechanism A includes a cam body 45 to be operated later,
It is composed of an interlocking rod 46, a pin 50, a seedling extruded body 47, and the like. These members are provided as follows. The cam body 45 is fixed so as to rotate integrally with the cam shaft 42. The interlocking rod 46 is rotatably supported at the front and rear intermediate portion by a pin 50 with a hollow case 44, is provided so that the base side is in contact with the outer periphery of the cam body 45, and the tip side is formed in a fork shape.

The seedling extruded body 47 is vertically slidably supported at the tip end of the hollow case 44, and its lower end projects outside the case.
(Fork shape), the outer periphery of which is cut in an oval shape on the upper end side, and the fork end of the interlocking rod 46 is engaged here. 51 is a spring. The transplanting nail 48 includes a pair of left and right needle-like nails, and is detachably attached to the distal end of the hollow case 44.

When the rotary case 28 is rotated, the lower end of the transplanting claw 48 is provided so as to draw a transplantation locus C in FIG. And, the upper surface of the hollow case 44 is configured such that the upper part of the cam body 45 inner part, which is the mounting part side of the implanting device, is lower and higher as it goes forward,
In FIG. 3, in the operation trajectory of the two implantation tools 29, 29,
When the implants 29 approach each other back and forth, the operation is performed while drawing the state in which the tip of the rear implant claw 48 approaches the upper surface of the front hollow case 44. Further, the hollow case 44 is provided so as to protrude from the base side attached to the rotating shaft 41a to be larger than the tip of the rotating case 28, and a transplanting claw 48 is attached to the tip side.

Then, while transplanting the seedlings from the seedling tank 20 to the soil from the position where the seedlings are divided, the rotating case 2
8 It is set to protrude greatly from the tip. To explain the operation of the above example, when seedlings are placed on each seedling tank 20 and each part is rotated by the engine 10, the towing vehicle 1 is propelled by the rotation of the front wheel 5 and the rear wheel 7, and the transplanting machine 18 At 22, 23 and 23, the load is partially received and towed, and power is transmitted from the front transmission case 3 side to the input shaft in the transmission case 19 via the transmission shaft. In this way, the drive shaft 35 is rotated by the power from the input shaft in the transmission case 19 via the chain 30, the sprocket 37, and the gears 32, 33, 34 via an appropriate transmission route. Then, each rotation case 28 rotates, and the counter planetary gears 40, 40 are planetary-rotated around the sun gear 38 with this rotation, and the planetary gears 41, 41 meshing with this are rotated.

Therefore, the hollow case 44 of the seedling transplanter 29 integrally fixed to the planetary gears 41 is rotated with respect to the rotating case 28, and the camshaft 42 integral with the rotating case 28 is of course. Since the rotation is not received by the planetary gear 41, the hollow case 44 is rotated with respect to the cam body 45 fixed to the cam shaft. Therefore, the interlocking rod 46 swings by the cam body 45, and the seedling pushing body 47 moves up and down.

Then, the tip side of the transplanting nail 48 attached to the hollow case 44 operates in accordance with the transplantation locus c, and intervenes one after another into the seedling dividing ports 27, 27,... Of the seedling receiving plate 26 from above. The seedlings in the seedling tank 20 that reciprocate left and right are divided by one plant and transplanted to the field scene where the soil is leveled by the leveling floats 22 and 23. That is, the seedling extruded body 47 is
When the seedling is separated from the seedling tank when it is located above the cam 4, the cam 45 and the interlocking rod 4
6 is disengaged from the cam floor portion, and the seedlings are quickly pushed into the soil by the spring 51, and the seedlings are transplanted.

In this way, the seedlings in the seedling tank 20 are taken out and transplanted by the two transplanting tools 29 and 29 attached to the rotating case 28 while being successively divided and clamped by one plant. , The rotating case 28 does not rotate at a high speed, and the two implants 2 provided at a shift of 180 degrees are provided.
Since the 9.29 circulates and transplants, highly efficient transplantation can be performed even when the operation speed of the transplantation tool itself is low, and since the transplantation tool 29 has an extruding device for extruding seedlings, it is possible to perform accurate transplantation. Can be transplanted.

When the seedlings are divided from the seedling tank 20 and transplanted to the soil surface, the hollow case 44 to which the transplanting claws 48 are attached greatly protrudes from the tip of the rotating case 28 on the side of the rotating case 28. In addition, since the transplanting claws 48 are attached to the tips thereof, the transplanting claws 48 can protrude into the seedling tank 20 from above and below in a proper posture without being disturbed by the rotating case 28, and the seedlings can be reliably divided. Even at the time of transplanting, the rotating case 28 can be easily rotated in a state away from the soil surface, does not collide with weeds or soil mass on the soil surface, and can be rotated even in deep water.
Can accurately transplant seedlings without plunging into the water.

The embodiment shown in FIGS. 1 to 3 is an embodiment in which two seedling transplanting tools 29 are attached to one rotating case 28. However, FIGS. As a matter of course, a single seedling transplanter 29 may be attached to the rotating case 28 as a matter of course. Further, as shown in FIGS. 8 and 9, the rotating shaft 41a integral with the planetary gear 41 is
Instead of the hollow shaft shown in FIG. 6 and FIG.
The cam shaft 42 to which the cam body 45 is attached is made hollow in reverse, and the base end of the cam shaft 42 is connected to the rotating case 2.
Needless to say, a configuration may be adopted in which the fitting 8 is fitted and fixed in a square shaft shape that can be prevented from rotating.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of an implanting device.

FIG. 2 is a side cross-sectional view of the implantation device.

FIG. 3 is a side view showing the trajectory diagram of the implanting device showing the operation state.

FIG. 4 is an overall side view of a riding rice transplanter.

FIG. 5 is an overall plan view of a riding rice transplanter.

FIG. 6 is a cross-sectional plan view of a transplantation device showing a second embodiment.

FIG. 7 is a side view showing a cross section of a main part of the transplantation device showing the second embodiment.

FIG. 8 is a cross-sectional plan view of a transplantation device showing a third embodiment.

FIG. 9 is a cross-sectional side view of a main part of the transplantation device showing the third embodiment.

FIG. 10 is a sectional view taken along line AA of FIG. 8;

[Explanation of symbols]

 Reference Signs List 19 transmission case 20 seedling tank 28 rotating case 29 seedling transplanting tool 35 drive shaft 42 camshaft 41a rotating shaft 44 hollow case 45 cam body 47 seedling extruded body 48 transplanting claw 49 fixing tool 52 mounting member 52a fitting hole A seedling extruding Interlocking mechanism

Claims (1)

(57) [Claims] 1. A transplanting device in which a rotating shaft 41a is rotatably supported by a rotating case 28 driven and rotated by a driving shaft 35, and a seedling transplanting tool 29 having a transplanting claw 48 is mounted on the rotating shaft 41a. The rotation speed of the rotation shaft 41a during one rotation is changed by a gear transmission mechanism provided in the rotation shaft 28 so that the transplanting claw 48 of the seedling transplantation tool 29 mounted on the rotation shaft 41a has a predetermined seedling planting posture. Then, the seedling extruded body 4 is operated so that the transplanting nails 48 are separated from the seedlings placed in the seedling tank 20 when transferring the seedlings of one strain divided and held on the soil surface.
7 is moved by the interlocking mechanism A. A cam shaft 42 for rotating a cam body 45 is provided so as to rotate integrally with the rotating case 28, and the seedling transplantation tool 29 is provided with the interlocking mechanism A and the cam body 45.
And a mounting member 52 fixed to the side surface of the hollow case 44, and a fitting hole 52a provided in the mounting member 52 is fitted into the rotating shaft 41a from the side. An implanting device characterized by being fixed with a fixing tool 49 so that the left and right mounting positions can be adjusted.