JPH0671371B2 - Transplant device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is used for a rotary type seedling planting device such as a rice transplanter.

[Conventional technology and its problems]

As a prior application of this invention, there is Japanese Patent Application No. 59-272663.
In the one disclosed in the prior application, an implant is attached to a flat plate portion of a support member having a T-shaped cross section that rotates integrally with a planetary gear, and when the implant is removed, a side wall surface portion of the implant is attached. Since the large hole is opened, there is a problem that oil leak, dust, etc. easily enter, and it is difficult to assemble and maintain it.

Further, the left and right mounting positions of each transplanter with respect to the machine body may be different due to the accuracy error of the members, and thus there is a problem that an appropriate seedling cannot be planted.

[Means for Solving the Problems]

In order to solve the problems of the prior art, the present invention is a rotating case in which a plurality of planet gears 41, 41 are provided so as to rotate around the sun gear 38 in a similar posture.
28 is fixed to the drive shaft 35, and cylindrical implanter mounting bosses 41a and 41a that rotate integrally with the planetary gears 41 and 41 are rotated.
Provided so as to project to the side of 28, the graft attachment boss portions 41a, 41a
Attach the transplant tools 29 and 29 each having the transplant nails 48 and 48 to the
In the transplanting device that operates so that each transplanting claw 48, 48 rotates in a similar posture with the rotation of the rotating case 28 and takes out one seedling from each seedling placed on the seedling placing table 20, A fitting portion that is fitted onto each tubular implant attachment boss 41a, 41a is provided in each implant 29, 29, and each tubular implant attachment boss 41 is provided.
Positions can be adjusted in the left-right direction of the aircraft relative to a ・ 41a
The transplanting device is characterized in that the fitting portions of 29 and 29 are externally fitted and fixed detachably.

[Action effect]

Since the present invention is configured as described above, each planetary gear 41
Since the transplant tool mounting bosses 41a and 41a that rotate integrally with the tube 41 are formed into a tubular shape, and the fitting parts that are externally fitted to the tubular section are provided in the transplant tools 29 and 29, the case seal is formed. And the mounting becomes stronger. Further, when the implanting tool 29 is removed, since the fitting portion of both is a cylindrical shape protruding from the side wall of the case, it is easy to prevent oil leakage, dust, and the like from entering, and its assembly and maintenance are easy. is there.

Further, since the fitting portions of the respective transplanters 29, 29 are externally fitted and detachably fixed to the respective tubular transplanter attachment boss portions 41a, 41a so that the position can be adjusted in the lateral direction of the machine body, the transplanter 29・ The mounting position of 29 can be adjusted to the same position by adjusting to the left and right direction of the machine, and as in the previous application, due to the accuracy error of each member 29
It is possible to avoid that 29 positions are different, and good seedlings can be planted.

〔Example〕

Reference numeral 1 is a passenger towing vehicle, in which a front mission case 3 and a rear mission case 4 are provided below a flat floor 2, and a pair of left and right sides are provided on the left and right sides of the rear side portion of the front mission case 3 via a front axle case. A frame for mounting the front wheels 5, 5 so that they can be transmitted and rotated, mounting transmission cases 6, 6 on the left and right sides of the rear transmission case 4, providing rear wheels 7, 7, and mounting a control lever, etc. on the front part of the flat floor 2. The body 8 is erected, a handle 9 is provided via a steering post, a cover 11 for covering the engine 10 is provided behind the handle 9, and a control seat 12 is mounted thereon.

Numerals 13 and 13 are columns, which are erected on the left and right at predetermined intervals on the connecting frame 14 which connects the left and right transmission cases 6 and 6.

Reference numeral 15 is an elevating link, and the base side of a pair of left and right lower links 15a and 15a and a single upper link 15b are pivotally attached to the pillars 13 and 13 via pins, and the tip side is connected by a vertical link 16 to raise and lower the link. The link 15 is configured to be vertically moved by the hydraulic cylinder device 17.

Reference numeral 18 denotes a transplanting machine, a transplanting transmission case 19, a seedling mounting table 20 that reciprocates left and right, a transplanting device 21, and a leveling float 22 at the center and sides.
The left and right intermediate portions of this transplantation transmission case 19 are mounted on a support 24 integral with the vertical link 16 via a support shaft 25 so as to be freely rotatable. The transplantation transmission case 19 has a case 19b, 19 extending in the vertical direction in the main case 19a.
It consists of b and 19b and cases 19c, 19c and 19c that extend rearward.

Reference numeral 26 denotes a seedling receiving frame, which extends in the lateral direction along the lower end side of the seedling placing table 20 and into which seedlings of the seedling placing table 20 divided by partitions can be divided. A split port 27 is provided.

The transplant device 21 includes a rotating case 28 and a transplant tool 29, and is configured as follows. That is, the rotary case 28 is mounted via the key 36 on the drive shaft 35 that is rotatably supported by the cases 19c, 19c, 19c of the transplantation transmission case 19 and is rotated by the chain 30, the sprocket 31, and the gears 32, 33, 34. ing.

Reference numeral 37 denotes a bearing metal, which is fixed to the outer side of the transmission cases 19c, 19c, 19c and bears the drive shaft 35 through a bearing, and the outer end hole portion 37a through which the shaft 35 is inserted is attached to the shaft 35.
It is eccentric to.

Reference numeral 38 denotes a sun gear, which is integrally provided with a boss portion which is inserted into the hole portion 37a of the bearing metal 37 and is locked by a key 39, and the gear 38 is provided with respect to the axis a of the drive shaft 35. It is an eccentric gear.

Reference numerals 40 and 40 denote counter planetary gears, which are constantly meshed with a sun gear 38 rotatably supported in the rotating case 28.

41 is a planetary gear, which is supported by the rotating case 28,
It is in mesh with the counter planetary gear 40. Then, one end side of the graft attachment boss portion 41a of the planetary gear 41 projects to the outside of the rotating case 28, and the shaft core portion of the graft attachment boss portion 41a has a hollow opening so that the shaft can be inserted. Has become.

Reference numeral 42 denotes a cam shaft, which is inserted into the hole of the graft mounting boss portion 41a, and one end of which is located outside the inside of the rotating case 28 and is a rotation stop plate 43.
And the other end projects further outward than the graft attachment boss 41a.

The transplant tool 29 is composed of a transplant case 44, a cam 45, an interlocking rod 46, a seedling extrusion body 47, a transplant nail 48, and the like. The transplant case 44 is fitted to the outer periphery of the transplant tool mounting boss 41a integral with the planetary gear 41, and is provided with a knock pin 49 so that the transplant case 44 can be slightly moved in the axial direction of the transplant tool mounting boss 41a to be fixed. When attached, it is provided so that it can rotate integrally with the implant attachment boss 41a.

The cam 45 is fixed so as to rotate integrally with the cam shaft 42.

The interlocking rod 46 has a front and rear intermediate portion rotatably supported by the transplant case 44 with a pin 50, a base portion side provided so as to abut the outer periphery of the cam 45, and a front end side formed in a fork shape.

The seedling extruded body 47 is axially slidably supported on the tip side of the transplantation case 44, and the lower end thereof projects outside the case, and this lower end is formed into a seedling extruded piece 47a (fork-shaped), The outer periphery of the upper end portion is partially cut into an oval shape, and the tip fork portion of the interlocking rod 46 is engaged there. 51 is a spring.

The transplant nail 48 is detachably attached to the tip of the transplant case 44.

Explaining the operation of the above example, when seedlings are placed on each seedling mounting table 20 and each part is rotated by the engine 10, the passenger towing vehicle 1 is propelled by the rotation of the front wheels 5 and the rear wheels 7, and the transplanter 18 parts are grounded. Part of the load is received and pulled by the floats 22, 23, and 23, and power is transmitted from the front mission case 3 side to the input shaft in the transplantation transmission case 19 via the transmission shaft. In this way, the drive shaft 35 is rotated from the input shaft in the transplantation transmission case 19 through the chain 30, the sprocket 37, and the gears 32, 33, and 34. Then, each rotating case 28 rotates, and with this rotation, the counter planetary gears 40, 40 are planetarily rotated around the sun gear 38, and the planetary gears 41, 41 meshing with the counter planetary gears 40, 40 are rotated. Therefore,
The transplant case 44 of the implant device 29 integrally fixed to the planet gears 41, 41 is rotated with respect to the rotary case 28, and the cam shaft 42 integrated with the rotary case 28 is naturally rotated by the planet gear 41. Therefore, the transplant case 44 is rotated with respect to the cam 45 fixed to the cam shaft 42. Therefore, the interlocking rod 46 swings by the cam 45, and the seedling extrusion body 47 moves up and down.

Then, the tip side of the transplanting claw 48 attached to the transplanting case 44 operates by drawing a planting locus C, and the seedling dividing port 27 of the seedling receiving plate 26 is operated.
Seedling stand 20 that reciprocates left and right by intervening one after another to…
The seedlings inside are divided into individual plants and planted in the field scenes that have been cultivated with leveled floats 22 and 23. That is, when the seedling extruding body 47 is located above the transplanting case 44, the seedlings are divided from the seedling mounting table, and when the seedling pushing body 47 plunges into the field, the cam 45 and the interlocking rod 46.
The cam floor of the plant is disengaged, and the seedlings are rapidly pushed into the soil by the spring 51 for transplanting.

As described above, the transplanting device 21 includes the planetary gear 41 in the rotating case 28 and the cam shaft 42 penetrating the center of the planetary gear 41 and the transplanting case 44 as the main body of the transplanter 29 and the cam 45 of the seedling pushing mechanism. Since it is configured to operate the transplant tool 29 by mounting it, the rotating case
It is possible to have a structure in which the seedling extrudate operates reliably without the need for a complicated structure such as a crank mechanism inside 28.
An implanting device with less vibration can be obtained.

And, in particular, each graft attachment boss portion 41a, 41a that rotates integrally with each planetary gear 41, 41 is formed into a tubular shape, and a fitting portion externally fitted to the tubular portion is provided in each implant tool 29, 29. Since this is a case, the sealability of the case is improved and the mounting is also firm. Then, when the implanting tool 29 is removed, the fitting portions of both are cylindrical and project from the side wall of the case, so that it is easy to prevent oil leakage, dust, and the like from entering, and its assembly and maintenance are easy. .

Further, since the fitting portions of the respective transplanters 29, 29 are externally fitted and detachably fixed to the respective tubular transplanter attachment boss portions 41a, 41a so that the position can be adjusted in the lateral direction of the machine body, the transplanter 29・ The mounting position of 29 can be adjusted to the same position by adjusting to the left and right direction of the machine, and as in the previous application, due to the accuracy error of each member 29
It is possible to avoid that 29 positions are different, and good seedlings can be planted.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view of an essential part, FIG. 2 is a side view of an essential part, and FIG. 3 is equipped with an implanting device of the present invention. FIG. 4 is a side view of the riding type transplanter, and FIG. 4 is a plan view thereof. Symbol in the figure, 19 is a transplant transmission case, 20 is a seedling mounting table, 28 is a rotating case, 29 is a transplant tool, 35 is a rotary drive shaft, 38 is a sun gear, 41 is a planetary gear, 41a is a transplant tool mounting boss portion, 42 is a cam shaft, 45 is a cam, and 48 is a graft nail.

Claims (1)

[Claims] 1. A plurality of planetary gears 41, 41 are sun gears 38.
The rotation case 28, which is provided so as to rotate in the same posture as above, is fixed to the drive shaft 35, and each planetary gear 41
・ Cylindrical graft mounting bosses 41a ・ 4 that rotate integrally with 41
1a is provided so as to project to the side of the rotary case 28, and the transplant tools 29 and 29 having the transplant claws 48 and 48 are mounted on the transplant tool attachment boss portions 41a and 41a, respectively. In the transplanting device that operates so as to rotate in a similar posture with the rotation of 28 and take out one seedling of each seedling from the seedling mounted on the seedling mounting table 20, the tubular transplanter mounting boss Providing a fitting portion to be externally fitted to the portions 41a and 41a in each of the transplant tools 29 and 29, the position of each transplant tool 29. An implanting device characterized in that 29 fitting portions are externally fitted and fixed detachably.