JPH06233603A - Transplanter - Google Patents

Abstract

PURPOSE:To prevent muddy water from entering into a cam unit in a transplanting unit body. CONSTITUTION:A cam unit 39 of a transplanting unit 35 is monolithically attached through a cam shaft to a rotary case 29 and the body 35a of the transplanting unit 35 is fixed to a transplanting unit drive shaft 34 so as to be monolithically rotatable. One of the cam shaft and the transplanting unit drive shaft 34 is a hollow shaft and the other is a solid shaft. The solid shaft is rotatably inserted into the hollow shaft and the solid shaft is extended from the hollow shaft. A seal 50 is set between the extended part of the solid shaft and the out side part of the body 35a of the transplanting unit 35. A seal 51 is also set between the inside part of the body 35a of the transplanting unit 35 and the hollow shaft. The cam unit 39 is set between the seal 50 and the seal 51.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanting device for dividing and transplanting seedlings from the seedling tank side, or for taking out (seeding) germinated seed paddy from a seed tank.

[0002]

2. Description of the Related Art With respect to claim 1, conventionally, a rotary case is fixedly attached to a drive shaft which is provided so as to project from a transmission case of a seedling plant, and the rotary case is rotated. A cam member for projecting to the outside of the case at a position away from the center and provided with a transplanter drive shaft that rotates in the direction opposite to the rotation of the rotating case, and for operating the transplantation actuating member at least during seedling transplantation There was a transplanting device equipped with a transplanter that had the interior of the.

According to the second aspect of the present invention, conventionally, a rotary case is fixed to a drive shaft which is provided so as to project from the transmission case of the seedling plant and which is rotationally driven, and the drive is performed in the rotary case. A sun gear, which is rotatably fitted on the shaft and integrally connected to the transmission case, is provided so as to be non-rotatable, and the sun gear rotates the case.
There has been a transplantation device in which an implanter drive shaft that rotates in the direction opposite to the rotation of the sheath and projects to the outside of the rotating case is provided, and the implanter is attached to the implanter drive shaft.

[0004]

The conventional transplanting device according to claim 1 is not of a structure that can endure the actual transplanting work, that is, when the transplanting work is actually carried out in the paddy field, muddy water is left in the transplanter. The invading muddy water causes the cam body to wear and the operating amount of the transplant actuating member to fluctuate, the seedling planting depth is not stable, and the planting accuracy is reduced.

The conventional transplanting device according to claim 2 is not of a structure which can endure the actual transplanting work as described above, that is, when the transplanting work is actually carried out in the paddy field, the rotating case is used.
Muddy water invades into the space, and the intruding muddy water causes a rotation case.
The gears in the blades wear and play increases, and the operation of the transplant tool and the transplant actuating member rattles, the posture of planting the seedlings becomes unstable, and the planting accuracy decreases.

[0006]

The present invention has taken the following technical means in order to solve the above-mentioned problems. First,
As a first technical means, a rotary case is fixed to a rotary drive shaft provided so as to project from the transmission case of the seedling planting machine, and the case is located at a position away from the center of rotation of the rotary case. Transplantation in which a transplanter drive shaft that protrudes outward and rotates in a direction opposite to the rotation of the rotating case is provided, and a transplanter equipped with a cam body that operates a transplant actuating member at least during seedling transplantation is attached to the transplanter drive shaft. In the device, the cam body of the implant is integrally attached to a rotating case through a cam shaft integrated with the cam body, and the body of the implant is fixed to the implant drive shaft so as to rotate integrally. One of the cam shaft and the implanter drive shaft is a hollow shaft and the other is a solid shaft, and the hollow shaft is rotatably fitted onto the solid shaft and the solid shaft extends from the hollow shaft. Let out
A seal is interposed between the extending portion of the solid shaft and the outer portion of the main body of the implant, and a seal is interposed between the inner portion of the main body of the implant and the hollow shaft. And the transplant device.

Next, as a second technical means, a rotary case is fixed to a rotary drive shaft provided so as to project from the transmission case of the seedling planting machine, and the drive shaft is mounted in the rotary case. A sun gear that is rotatably fitted to the outside and is integrally connected to the transmission case to prevent rotation, and the sun gear rotates the case.
In a transplantation device in which an implanter drive shaft that rotates in a direction opposite to the rotation of the sheath and protrudes to the outside of the rotatable case is provided, and the implanter is attached to the implanter drive shaft, the rotary case is attached to the drive shaft. The sun gear is mounted so as to rotate integrally with the outer side of the rotating case, and the sun gear is non-rotatable by connecting a boss portion extending toward the transmission case of the gear with a fixed metal fixed to the transmission case. An implanting device which is mounted and has a seal interposed between an outer portion of the rotary case and a drive shaft and a seal interposed between an inner portion of the rotary case and a fixed metal. And

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transplanting device for a riding type rice transplanter according to an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a passenger towing vehicle, which is provided with a front mission case 3 and a rear mission case 4 below a flat control step floor-2, and left and right of a rear side portion of the front mission case 3. A pair of left and right front wheels 5, 5 are provided on both sides for transmission rotation through front axle cases, and transmission cases 6, 6 are mounted on both left and right sides of the rear transmission case 4 to attach rear wheels 7. 7, a frame 8 for mounting an operation lever and the like is erected on the front side portion of the step floor-2, and a handle 9 is provided on this by a steering post, and a cover for covering the engine 10 behind the handle 9. 11 is provided, and the control seat 12 is mounted thereon.

Numerals 13 and 13 are stanchions, which are the left and right transmission cases.
It is erected at a predetermined interval on the left and right on the connecting frame 14 that connects the screws 6 and 6. Reference numeral 15 is an elevating link, the base side of a pair of left and right lower links 15a, 15a and a single upper link 15b are pivotally attached to the pillars 13, 13 via pins, and the tip side is connected by a vertical link 16, The lifting link 15 is configured to be vertically rotated by a hydraulic cylinder device 17.

A transplanter 18 is composed of a transmission case 19, a seedling tank 20 that reciprocates left and right, a transplanting device 21, and leveling floats 22, 23, 23, etc. in the central and side portions,
The left and right intermediate portions of the transmission case 19 are mounted on a support 24 integral with the vertical link 16 via a support shaft 25 so as to be free to roll. The transmission case 19 is a main transmission case.
The vertical transmission case 19b, 19b
19b and a longitudinal transmission case 19c, 19c.
It is made of 9c.

Reference numeral 26 denotes a seedling receiving frame, which extends laterally along the lower end of the seedling tank 20.
Seedling dividing port 27, 27, which can divide the seedlings placed in 0.
・ ・ Is provided. The transplant device 21 is composed of the following members. That is, a drive shaft 28 projecting outward in the lateral direction is erected on the transmission case 19 so as to be appropriately rotated by transmission, and the tip end side of the drive shaft 28 is provided in a square shape. A rotating case 29 is attached to the drive shaft 28. The rotary case 29 is attached to the drive shaft 2
The rotation case 29 is configured to rotate integrally with the drive shaft 28 by fitting the tip end side angular shaft portion of No. 8 therein. Reference numeral 30 denotes a fixed metal, the base portion of which is fixed to the transmission case 19, and the tip end side of which extends into the rotary case 29 so as to surround the drive shaft 28. A hole that is eccentric with respect to the drive shaft 28 is formed on the tip side of the fixed metal 30. 31 is a sun gear, the boss portion of which is fitted in the hole of the fixed metal 30 and a key 31a is interposed between the boss and the metal 30 to rotate the sun gear 31 without rotating. It is provided so as to fit inside the case 29. The sun gear 31 is provided such that the center of the sun gear 31 is eccentric with respect to the axis A of the drive shaft 28.

Numerals 32 and 32 are counters which are rotated by the rotation of the rotary case 29 in mesh with the sun gear 31.
It is a planetary gear. 33, 33 are planetary gears integrally provided with the implanter drive shaft 34, and are meshed with the counter-planetary gears 32, 32 in the tip end side of the rotating case 29.

The implant drive shaft 34 is a transmission case 1.
It is extended to the side opposite to the 9 side, and the tip side thereof is formed as a square shaft 34a. Reference numeral 35 designates a transplanter, which has a hollow case inside, a transplanter main body 35a, a seedling dividing claw 36 attached to the main body 35a, a seedling pushing fork 37, an interlocking member 38 and a cam housed in the case. It is made up of a body 39, a spring 40 and the like. The cam body 39 has a hole through which the implant device drive shaft 34 penetrates, and the boss portion 39a of the cam body 39 is extended to fit into the square hole portion C of the rotary case 29. The cam body 39 is attached so that the cam body 39 is rotated integrally with the rotating case 29. The seedling extruding fork 37 has an upper and lower intermediate portion vertically slidably mounted in the implanter main body 35a, and a fork piece 37a is integrally fixed to the lower protruding lower end portion. Interlocking member 3
Numeral 8 is for interlocking the cam body 39 and the upper end of the fork 37, and 41 is a fulcrum pin thereof.

Reference numeral 42 is a mounting metal fitting for mounting the main body 35a of the implant 35 and the implant drive shaft 34, and the metal fitting 42 has a square hole 42a which is fitted to the square shaft 34a of the drive shaft 34. A bolt insertion hole 42b for fixing to the outer surface of the implant body 35a is formed. The bolt insertion hole 42b is provided in an arc shape around the drive shaft 34, and when the metal fitting 42 is attached to the implanter body 35a with the bolt 43, the body 35a is appropriately rotated around the drive shaft 34. It is configured to be adjustable. In addition, the mounting bracket 42 and the drive shaft 34 are provided with a cotter pin 44 whose peripheral surface is partially tapered in the axial direction to form a square shaft 34.
It is crimped to part a, and when this pin 44 is pulled out, the implanter drive shaft 3
4 is configured so that the entire implanter 35 can be moved and adjusted in the axial direction of 4.

50, 50, 51, 51, 52, 52, 5
3, 54 and 55 are seals. Next, the operation of the above example will be described.
When the respective parts are rotated by, the passenger towing vehicle 1 is propelled by the rotation of the front wheels 5 and the rear wheels 7, and the part of the implanting tool 18 is moved to the leveling float 2.
Part of the load is received by 2 ・ 23 ・ 23 and it is pulled, and the power is transmitted through the transmission shaft to the front transmission case.
It is transmitted from the side of the shoe 3 to the input shaft in the transmission case 19. In this way, power is transmitted from the input shaft in the transmission case 19 to the drive shaft 28 via an appropriate transmission route. Then, each rotating case 29 rotates, and the sun gear-
The counter-planetary gears 32 and 32 are planetarily rotated around 31, and the planetary gears 33 and 33 that mesh with the counter are rotated. Therefore, the implanter drive shaft 34 and the mounting bracket 42 that are integrally provided on the planetary gears 33, 33 are provided.
The implant body 35a is rotated via the. Further, the cam body 39 integrally attached to the rotary case 29 via the boss portion 39a is rotated while being displaced with respect to the rotation of the implant main body 35a. Therefore, the interlocking member 38 is formed.
The seedling extruding fork 37 is moved up and down through.

That is, the tip end side of the seedling dividing claw 36 operates by drawing a locus of transplantation D, and the seedlings are successively fed to the seedling dividing ports 27, 27, ... of the seedling receiving plate 26 in the seedling tank 20 that reciprocates left and right. The plants are divided and transferred one after another to the field scene, and the seedling dividing nail 36
When the seedling plunges into the bottommost field, the seedling pushing fork 37 just pushes the seedling downward by the action of the spring 40, and the seedling is surely transplanted.

When there is a difference in the amount of seedlings split by the seedling splitting claws 36 of the two transplanters 35 attached to the rotating case 29 or the seedling transplanting posture is not good, the transplanter is driven. It is preferable that the transplant main body 35a is rotationally adjusted with respect to the shaft 34 to adjust the size and the intervention angle at which the seedling dividing claw 36 intervenes in the seedling dividing opening 27. For this adjustment, bolt 4
3 may be loosened to adjust the mounting angle between the mounting bracket 42 and the implanter body 35a. However, this adjustment can be performed outside the implanter body 35a, so that the operation can be extremely facilitated.

When the seedling dividing claw 36 is displaced laterally with respect to the seedling dividing opening 27 of the seedling receiving plate 26 during seedling division, the cotter pin 44 is loosened and the transplanter main body 35a.
Is moved in the axial direction, and the cotter pin 44 is driven again for adjustment.

[0019]

Since the present invention has the above-mentioned structure, it has the following operations and effects. That is, in the invention of claim 1, even if the transplanting device is immersed in muddy water in the actual transplanting work, the transplant is performed through the gap between the cam shaft and the implanter drive shaft and the implanter body (case). Prevents muddy water from entering the cam body inside the tool body, suppresses wear of the cam body, stabilizes the operation amount of the transplant actuating member, stabilizes the seedling planting depth, and improves planting accuracy. To do.

Further, in the second aspect of the present invention, similarly, even when the transplanting device is immersed in muddy water during the actual transplanting work, the space between the drive shaft and the cylindrical member that encloses the outer periphery thereof and the rotating case is similarly provided. Muddy water is prevented from entering the gears in the rotating case through the gap between the gears, wear of the gears is suppressed, rattling of the operation of the transplanter and transplantation actuating member is prevented, and the seedling planting posture is stable. However, the planting accuracy is improved.

[Brief description of drawings]

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

FIG. 2 is a side view showing a partial cross section of the transplantation device.

3 is a sectional view taken along the line AA of FIG.

[Figure 4] Side view of the entire passenger rice transplanter

[Fig. 5] Plan view of the entire riding rice transplanter

[Explanation of symbols]

 19: Transmission case 28: Drive shaft 29: Rotating case 30: Fixed metal 31: Sun gear 34/34: Implant drive shaft 35/35: Implant 35a / 35a: Implant body 39/39: Cam Body 39a / 39a: Boss (cam shaft) 50/50: Seal 51/51: Seal 53: Seal 54: Seal

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[Procedure amendment]

[Submission date] September 17, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Transplantation device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanting device for dividing and transplanting seedlings from the seedling tank side, or for taking out (seeding) germinated seed paddy from a seed tank.

[0002]

2. Description of the Related Art Conventionally, in Japanese Patent Publication No. 49-17806, a drive shaft (rotating shaft) which is rotationally driven and is provided so as to project from a transmission case (sub-transmission case) of a seedling plant is integrally rotated. As described above, the rotation case (claw transmission case) is fixedly attached, the rotation shaft is rotatably fitted to the drive shaft in the rotation case, and the rotation case is integrally connected to the transmission case and cannot rotate. A sun gear (fixed gear) is provided, and an implanter drive shaft (claw shaft) that rotates in the direction opposite to the rotation of the rotating case by gear transmission from the sun gear and projects to the outside of the rotating case is provided. The implant tool (upper member) is fixed to the implant tool drive shaft so as to rotate integrally, a cam cylinder is rotatably fitted to the implant tool drive shaft inside the implant tool, and the cam tube is rotated. An implant device affixed to a case is disclosed.

[0003]

The conventional transplantation device is not constructed so as to withstand the actual transplantation work. That is, when the transplanting work is actually carried out in the paddy field, the transplanting device gets extremely wet with muddy water. The attached muddy water tends to penetrate the implant and the rotating case through the shaft. However, in the conventional device, it was uncertain about the sealing at the shaft portion.

First of all, the sealing against the intrusion of muddy water into the cam barrel was uncertain. For this reason, in the conventional device, muddy water enters the cam barrel of the implanting tool and the sliding contact portion of the cam barrel is significantly worn, and the operation amount of the implanting actuating member operated by the cam fluctuates, and the planting accuracy decreases. there were. Next, the sealing against the infiltration of muddy water into the rotating case of the drive shaft was uncertain. Therefore, in the conventional device, muddy water enters the rotating case, the gear in the rotating case is significantly worn, the rattling of gear engagement increases, and the operation of the transplant tool and the transplant operating member rattles. The posture of planting seedlings was unstable.

[0005]

The present invention has taken the following technical means in order to solve the above-mentioned problems. First,
As a first technical means, a rotating case is fixedly attached to a drive shaft which is provided so as to project from the transmission case of the seedling planting machine, and the rotating case projects to the outside of the rotating case. Is a transplant device provided with a transplanter drive shaft that rotates in the opposite direction, and a transplanter equipped with a transplanter in which a cam body for activating a transplant actuating member at least at the time of transplanting seedlings is mounted on the transplanter drive shaft, wherein the cam body of the transplanter is It is integrally attached to a rotating case via a cam shaft, the body of the implant is fixed to the implant drive shaft so as to rotate integrally, and one of the cam shaft and the implant drive shaft is a hollow shaft. The other is formed as a solid shaft, the hollow shaft is rotatably fitted on the solid shaft, and the solid shaft is extended from the hollow shaft, and the extending portion of the solid shaft and the main body of the implanter. The first seal of the implant is interposed between the outer side and the inner side of the body of the implant and the hollow shaft. Uegu second sheet - interposed Le to implant the first sheet - was implanted device, characterized in that provided as the cam member is disposed between the Le - Le and implant the second sheet. Next, as a second technical means, a rotary case is fixed to the drive shaft, which is provided so as to project from the transmission case of the seedling planting machine, so as to rotate integrally, and the rotary case is fixed in the rotary case. A sun gear, which is rotatably fitted onto the drive shaft and integrally connected to the transmission case, is provided so as to be non-rotatable, and the sun gear rotates by a gear transmission from the sun gear in a direction opposite to the rotation of the rotation case. In the transplantation device in which an implanter drive shaft projecting to the outside of the rotating case is provided and the implanter is attached to the implanter drive shaft, the rotating case rotates integrally with the drive shaft at the outside of the rotating case. The sun gear is attached so that the boss portion extending to the transmission case side of the gear is connected to the outer end portion of the fixed metal that has entered the rotation case of the fixed metal so that the sun gear cannot rotate. −
A rotating case first seal is provided between the outer side of the case and the drive shaft, and a second case is provided between the inner side of the case and the fixed metal for rotation. The transplantation device is characterized in that the sun gear is provided between the first case and the second case of the rotating case.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transplanting device for a riding type rice transplanter according to an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a passenger towing vehicle, which is provided with a front mission case 3 and a rear mission case 4 below a flat control step floor-2, and left and right of a rear side portion of the front mission case 3. A pair of left and right front wheels 5, 5 are provided on both sides for transmission rotation through front axle cases, and transmission cases 6, 6 are mounted on both left and right sides of the rear transmission case 4 to attach rear wheels 7. 7, a frame 8 for mounting an operation lever and the like is erected on the front side portion of the step floor-2, and a handle 9 is provided on this by a steering post, and a cover for covering the engine 10 behind the handle 9. 11 is provided, and the control seat 12 is mounted thereon.

Reference numerals 13 and 13 denote support posts, which are the left and right transmission cases.
It is erected at a predetermined interval on the left and right on the connecting frame 14 that connects the screws 6 and 6. Reference numeral 15 is an elevating link, the base side of a pair of left and right lower links 15a, 15a and a single upper link 15b are pivotally attached to the pillars 13, 13 via pins, and the tip side is connected by a vertical link 16, The lifting link 15 is configured to be vertically rotated by a hydraulic cylinder device 17.

A transplanter 18 is composed of a transmission case 19, a seedling tank 20 that reciprocates left and right, a transplanting device 21, and central and side leveling floats 22, 23, 23, and the like.
The left and right intermediate portions of the transmission case 19 are mounted on a support 24 integral with the vertical link 16 via a support shaft 25 so as to be free to roll. The transmission case 19 is a main transmission case.
The vertical transmission case 19b, 19b
19b and a longitudinal transmission case 19c, 19c.
It is made of 9c.

A seedling receiving frame 26 extends laterally along the lower end of the seedling tank 20.
Seedling dividing port 27, 27, which can divide the seedlings placed in 0.
・ ・ Is provided. The transplant device 21 is composed of the following members. That is, a drive shaft 28 projecting outward in the lateral direction is erected on the transmission case 19 so as to be appropriately rotated by transmission, and the tip end side of the drive shaft 28 is provided in a square shape. A rotating case 29 is attached to the drive shaft 28. The rotary case 29 is attached to the drive shaft 2
The rotation case 29 is configured to rotate integrally with the drive shaft 28 by fitting the tip end side angular shaft portion of No. 8 therein. Reference numeral 30 denotes a fixed metal, the base portion of which is fixed to the transmission case 19, and the tip end side of which extends into the rotary case 29 so as to surround the drive shaft 28. A hole that is eccentric with respect to the drive shaft 28 is formed on the tip side of the fixed metal 30. 31 is a sun gear, the boss portion of which is fitted in the hole of the fixed metal 30 and a key 31a is interposed between the boss and the metal 30 to rotate the sun gear 31 without rotating. It is provided so as to fit inside the case 29. The sun gear 31 is provided such that the center of the sun gear 31 is eccentric with respect to the axis A of the drive shaft 28.

Reference numerals 32 and 32 are counters which are rotated by the rotation of the rotating case 29 in mesh with the sun gear 31.
It is a planetary gear. 33, 33 are planetary gears integrally provided with the implanter drive shaft 34, and are meshed with the counter-planetary gears 32, 32 in the tip end side of the rotating case 29. The implant drive shaft 34 is a transmission case 1.
It is extended to the side opposite to the 9 side, and the tip side thereof is formed as a square shaft 34a.

Reference numeral 35 denotes a transplanter, which is a transplanter main body 35a having a hollow case inside, a seedling dividing pawl 36 attached to the main body 35a, a seedling pushing fork 37, and an interlocking member housed in the case. 38, a cam body 39, a spring 40 and the like. The cam body 39 is attached to the implant drive shaft 34.
Has a hole through which the boss portion 39a is extended and is attached to the rotating case 29 in such a manner as to fit into the square hole portion c, and this cam body 39 is connected to the rotating case 29. It is configured to rotate integrally. The seedling extruding fork 37 has a vertically middle portion which is vertically slidably mounted in the implant body 35a, and a fork piece 37 is provided at a lower protruding lower end portion.
a is integrally fastened. The interlocking member 38 is the cam body 3
9 and the upper end of the fork 37 are interlocked, and 41 is a fulcrum pin thereof.

Reference numeral 42 denotes a mounting metal fitting for mounting the main body 35a of the transplanter 35 and the transplanter drive shaft 34, and the metal fitting 42 has a square hole 42a which is fitted to the square shaft 34a of the drive shaft 34. A bolt insertion hole 42b for fixing to the outer surface of the implant body 35a is formed. The bolt insertion hole 42b is provided in an arc shape around the drive shaft 34, and when the metal fitting 42 is attached to the implanter body 35a with the bolt 43, the body 35a is appropriately rotated around the drive shaft 34. It is configured to be adjustable. In addition, the mounting bracket 42 and the drive shaft 34 are provided with a cotter pin 44 whose peripheral surface is partially tapered in the axial direction to form a square shaft 34.
It is crimped to part a, and when this pin 44 is pulled out, the implanter drive shaft 3
4 is configured so that the entire implanter 35 can be moved and adjusted in the axial direction of 4.

50.50 is the first seal of the implant, 51.5.
1 is an implant second seal, 52 and 52 are rotating case third seals, 53 is a rotating case first seal, 54 is a rotating case second seal, and 55 is a rotating case. It is a fixed metal part seal. Next, the operation of the above example will be described. When the seedlings are placed on the seedling tank 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 part of the implant 18 is leveled. Part of the load is received by the floats 22, 23, and 23 and is pulled, 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, power is transmitted from the input shaft in the transmission case 19 to the drive shaft 28 via an appropriate transmission route. Then, each rotating case 29 rotates, and along with this rotation, a counter-planetary gear-3 around the sun gear-31.
Planetary gears 2 and 32 are rotated, and planetary gears 33 mesh with them.
・ 33 will be rotated. Therefore, the implant body 35a is rotated via the implant drive shaft 34 and the mounting bracket 42 that are integrally provided on the planetary gears 33, 33. Further, the cam body 39 integrally attached to the rotary case 29 via the boss portion 39a is rotated while being displaced with respect to the rotation of the implant main body 35a. Therefore, the interlocking member 38 is formed. The seedling extruding fork 37 is moved up and down through.

That is, the tip end side of the seedling dividing claw 36 operates while drawing a locus of transplantation D, and is fed to the seedling dividing ports 27, 27, ... of the seedling receiving plate 26 one after another in the seedling tank 20 which reciprocates left and right. The plants are divided and transferred one after another to the field scene, and the seedling dividing nail 36
When the seedling plunges into the bottommost field, the seedling pushing fork 37 just pushes the seedling downward by the action of the spring 40, and the seedling is surely transplanted.

When there is a difference in the amount of seedlings split by the seedling splitting pawls 36 of the two transplanters 35 attached to the rotating case 29 or the seedling transplanting posture is not good, the transplanter is driven. It is preferable that the transplant main body 35a is rotationally adjusted with respect to the shaft 34 to adjust the size and the intervention angle at which the seedling dividing claw 36 intervenes in the seedling dividing opening 27. For this adjustment, bolt 4
3 may be loosened to adjust the mounting angle between the mounting bracket 42 and the implanter body 35a. However, this adjustment can be performed outside the implanter body 35a, so that the operation can be extremely facilitated.

If the seedling dividing claw 36 is displaced laterally with respect to the seedling dividing opening 27 of the seedling receiving plate 26 during seedling division, loosen the cotter pin 44 to loosen the cotter pin 35a.
Is moved in the axial direction, and the cotter pin 44 is driven again for adjustment.

[0017]

Since the present invention has the above-mentioned structure, it has the following operations and effects. That is, in the invention of claim 1, even if the transplanting device is immersed in muddy water during the actual transplanting work, the transplanter main body comes from between the cam shaft and the transplanter drive shaft and the transplanter main body (case). Prevents muddy water from entering the inner cam body, prevents wear of the cam body due to infiltration of muddy water, stabilizes the operation amount of the transplant actuating member, stabilizes the seedling planting depth, and improves planting accuracy. .

Further, in the invention of claim 2, similarly, even when the transplanting device is immersed in muddy water in the actual transplanting work, the space between the drive shaft and the cylindrical member that encloses the outer periphery thereof and the rotary case is provided. Prevent muddy water from entering the gear in the rotating case, prevent wear of the gear due to infiltration of muddy water, prevent rattling of the operation of the transplant tool and transplant operation member, and stabilize the seedling planting posture, Improving planting accuracy.

[Brief description of drawings]

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

FIG. 2 is a side view showing a partial cross section of the transplantation device.

3 is a sectional view taken along the line AA of FIG.

[Figure 4] Side view of the entire passenger rice transplanter

[Fig. 5] Plan view of the entire riding rice transplanter

[Explanation of Codes] 19: Transmission case 28: Drive shaft 29: Rotating case 30: Fixed metal 31: Sun gear 34/34: Implant drive shaft 35/35: Implant 35a / 35a: Implant main body 39/39: Cam body 39a / 39a: Boss part (cam shaft) 50/50: Implant tool first seal 51/51: Implant tool second seal 53: Rotating case first seal 54 : Rotating case second seal

Claims (2)

[Claims] 1. A rotary case is fixed to a rotary drive shaft provided so as to project from the transmission case of the seedling planting machine, and the rotary case is fixed to the rotary case.
A drive shaft for the transplant tool that protrudes to the outside of the case and rotates in a direction opposite to the rotation of the rotary case, and operates the transplant operation member at least during seedling transplantation. In the transplantation device equipped with a transplanter having a cam body inside, the cam body of the transplanter is integrally attached to a rotating case via a cam shaft integral with the cam body, and the main body of the transplanter is The cam shaft and the implant drive shaft are fixed to the implant drive shaft so as to rotate integrally with each other. One of the cam shaft and the implant drive shaft is formed as a hollow shaft and the other is formed as a solid shaft, and the hollow shaft is rotatably fitted on the solid shaft. In addition, the solid shaft is extended from the hollow shaft, and a seal is interposed between the extending portion of the solid shaft and the outer portion of the main body of the implant and the inner portion of the main body of the implant is hollow. An implanting device characterized in that a seal is interposed between the shaft and the shaft. 2. A rotary case is fixed to a drive shaft, which is provided so as to project from the transmission case of the seedling planting machine, for rotation, and the rotary case is fixed.
Is fitted to the drive shaft so as to be freely rotatable within the space, and the transmission case is
A sun gear that is integrally connected to the gear and cannot rotate,
In the transplantation device in which an implanter drive shaft that rotates in a direction opposite to the rotation of the rotary case by the sun gear and projects to the outside of the rotary case is provided, and the implanter is attached to the implanter drive shaft, -The fixed metal is attached to the drive shaft so as to rotate integrally with the outer side of the rotating case, and the sun gear has a boss portion extending to the transmission case side of the gear fixed to the transmission case. It was mounted non-rotatably by being connected to the rotary case, and a seal was interposed between the outer side of the rotary case and the drive shaft, and a seal was interposed between the inner side of the rotary case and the fixed metal. A transplant device characterized by the above.