JP5350548B2 - Rice transplanter work machine transmission - Google Patents

Rice transplanter work machine transmission Download PDF

Info

Publication number
JP5350548B2
JP5350548B2 JP2013010408A JP2013010408A JP5350548B2 JP 5350548 B2 JP5350548 B2 JP 5350548B2 JP 2013010408 A JP2013010408 A JP 2013010408A JP 2013010408 A JP2013010408 A JP 2013010408A JP 5350548 B2 JP5350548 B2 JP 5350548B2
Authority
JP
Japan
Prior art keywords
planting
shaft
gear
transmission
input shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2013010408A
Other languages
Japanese (ja)
Other versions
JP2013099350A (en
Inventor
邦夫 土井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Co Ltd filed Critical Yanmar Co Ltd
Priority to JP2013010408A priority Critical patent/JP5350548B2/en
Publication of JP2013099350A publication Critical patent/JP2013099350A/en
Application granted granted Critical
Publication of JP5350548B2 publication Critical patent/JP5350548B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Transplanting Machines (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working implement transmission of a rice transplanter, which is capable of contributing to control of the attitude of a planted seedling. <P>SOLUTION: The working implement transmission of a rice transplanter is provide with an intrarow spacing transmission switching mechanism (intrarow spacing transmission) on an input shaft (131) and an idle shaft (132), wherein the rotation of a planting output shaft (134) is allowed to switch to constant velocity/inconstant velocity by the intrarow spacing transmission switching mechanism. When sparse planting, the velocity of the rotation of planting drive is to be inconstant by causing the driving force of the input shaft (131) to drive the planting output shaft (134) through a non-circular gear (36) arranged on the idle shaft (132) engaged with a gear (28) of the input shaft (131). <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

本発明は、植付けた苗の姿勢を統制する田植機の作業機変速装置に関する。   The present invention relates to a work machine transmission for a rice transplanter that controls the posture of a planted seedling.

従来の田植機には、走行部の後方に植付部を連結し、同植付部に植付ミッションケースを設け、同植付ミッションケースに植付爪を連動連結して、同植付爪を植付作動させることにより、別途植付ミッションケース上に配置した苗載台上の苗マットより苗株を切削して圃場に植付け可能とすると共に、同植付ミッションケース内に株間変速機構を設け、同株間変速機構に株間変速レバーを連動連結して、同株間変速レバーを操作することにより、株間変速機構を介して植付爪の植付作動速度を変更して、圃場に植付けられる苗株の間隔を変更可能としたものがある。   In conventional rice transplanters, a planting part is connected to the rear of the traveling part, a planting mission case is provided in the planting part, and a planting claw is interlocked to the planting mission case. By planting the plant, the seedlings can be cut from the seedling mat on the seedling stand separately placed on the planting mission case and planted in the field. A seedling that can be planted in a field by changing the planting operation speed of the planting claw via the inter-strain transmission mechanism by operating the inter-strain transmission lever by interlocking and connecting the inter-strain transmission lever to the inter-strain transmission mechanism. Some have made it possible to change the stock interval.

特開平9−149717号公報JP-A-9-149717

しかし、上記のような田植機では、単位面積当たりの株数を少なく植える疎植時において、植付駆動の回転が等速であるため、植え付けた苗が前傾姿勢になってしまい、発育を阻害するという問題があった。
そこで、この発明の目的は、植付けた苗の姿勢の統制に寄与し得る田植機の作業機変速装置を提供するものである。
However, in the rice transplanter as described above, when planting with a small number of plants per unit area, the planting drive rotates at a constant speed, so that the planted seedling is in a forward leaning posture and hinders growth. There was a problem to do.
Accordingly, an object of the present invention is to provide a work machine transmission for a rice transplanter that can contribute to the control of the posture of a planted seedling.

このため、請求項1に記載の発明は、田植機の作業機変速装置において、入力軸と、アイドル軸とに株間変速切替機構を設け、該株間変速切替機構により植付出力軸の回転を等速/不等速に切り替え可能とし、疎植時には前記入力軸に設けた歯車と、該入力軸に設けた歯車と噛合する前記アイドル軸に配置した非円形歯車を介して、前記入力軸の駆動力が植付出力軸を駆動させて植付駆動の回転を不等速にしたことを特徴とする。また、請求項2に記載の発明は、前記アイドル軸に伝達され、該アイドル軸から株間変速軸を介して植付出力軸を駆動することを特徴とし、請求項3に記載の発明は、植付爪が下死点近傍で高速になるように構成したことを特徴とする。さらに、請求項4に記載の発明は、前記作業機変速装置の前記入力軸と、前記植付出力軸との間には、副株間変速機構を設けたことを特徴とする。   Therefore, according to the first aspect of the present invention, in the work machine transmission of the rice transplanter, the inter-plant shift switching mechanism is provided on the input shaft and the idle shaft, and the planting output shaft is rotated by the inter-plant shift switching mechanism. The input shaft is driven via a gear provided on the input shaft and a non-circular gear arranged on the idle shaft that meshes with the gear provided on the input shaft. The force drives the planting output shaft to make the rotation of planting drive nonuniform. The invention described in claim 2 is characterized in that the planting output shaft is transmitted to the idle shaft and driven from the idle shaft through the inter-shaft transmission shaft. It is characterized in that the pawl has a high speed near the bottom dead center. The invention according to claim 4 is characterized in that a sub-strain transmission mechanism is provided between the input shaft and the planting output shaft of the work equipment transmission.

請求項1に記載の発明によれば、田植機の作業機変速装置において、入力軸と、アイドル軸とに株間変速切替機構を設け、この株間変速切替機構により植付出力軸の回転を等速/不等速に切り替え可能とし、疎植時には入力軸に設けた歯車と、この入力軸に設けた歯車と噛合するアイドル軸に配置した非円形歯車を介して、入力軸の駆動力が植付出力軸を駆動させて植付駆動の回転を不等速にしたので、密植時と疎植時の作業に対応させて植え付けた苗の姿勢を統制させることができる。また、請求項2に記載の発明によれば、アイドル軸に伝達され、このアイドル軸から株間変速軸を介して植付出力軸を駆動するので、入力軸の動力をアイドル軸で不等速に確実に切替えて、この不等速回転を植付出力軸に伝達することができる。さらに、請求項3に記載の発明によれば、植付爪が下死点近傍で高速になるように構成したので、植え付けた苗の姿勢を統制させることができる。そして、請求項4に記載の発明によれば、作業機変速装置の入力軸と、植付出力軸との間には、副株間変速機構を設けたので、株間変速切替機構で植付出力軸の駆動を、疎植時(不等速)と、密植時(等速)の密植第1段および密植第2段とに切替可能としたことに加えて、上記疎植時(不等速)と、密植時(等速)の密植第1段および密植第2段の各駆動力を、さらに副株間変速機構によりそれぞれ2段階に切替可能とすることで、植付作業の微調整を行うことができる。従って、生産性を向上させた田植機の作業機変速装置を提供することができる。   According to the first aspect of the present invention, in the work machine transmission of the rice transplanter, the inter-plant shift switching mechanism is provided on the input shaft and the idle shaft, and the rotation of the planting output shaft is made constant speed by the inter-plant shift switching mechanism. / Can be switched to non-uniform speed, and at the time of sparse planting, the driving force of the input shaft is planted through a gear provided on the input shaft and a non-circular gear arranged on the idle shaft meshing with the gear provided on the input shaft. Since the rotation of the planting drive is made unequal, by driving the output shaft, the posture of the planted seedling can be controlled in accordance with the work at the time of dense planting and sparse planting. According to the second aspect of the present invention, since the planting output shaft is driven from the idle shaft through the inter-shaft transmission shaft, the power of the input shaft is made nonuniform at the idle shaft. By switching with certainty, this non-uniform rotation can be transmitted to the planting output shaft. Furthermore, according to the invention described in claim 3, since the planting claw is configured to be high speed near the bottom dead center, the posture of the planted seedling can be controlled. According to the fourth aspect of the present invention, since the sub-strain transmission mechanism is provided between the input shaft of the work machine transmission and the planting output shaft, the planting output shaft is provided by the strain shifting mechanism. Can be switched between sparse planting (unequal speed) and dense planting (constant speed) dense planting first stage and dense planting second stage, in addition to the above sparse planting (unequal speed) And finely adjusting the planting work by allowing each of the driving powers of the dense planting first stage and the dense planting second stage to be switched to two stages by the sub-strain shifting mechanism at the time of dense planting (constant speed). Can do. Therefore, it is possible to provide a work machine transmission for a rice transplanter with improved productivity.

乗用田植機の要部の側面図である。It is a side view of the principal part of a riding rice transplanter. 同、平面図である。FIG. ロータリーケース及びその近傍の側面図である。It is a side view of a rotary case and its vicinity. 同、平面図である。FIG. 植付伝動ケース内の一部を示す説明図である。It is explanatory drawing which shows a part in planting transmission case. ミッションケースで株間変速を行う様態を示す説明図である。It is explanatory drawing which shows the aspect which performs a stock shift in a mission case.

以下に、本発明の実施形態を図面に示す実施例に基づいて説明する。図1及び2は、乗用田植機の要部の側面図及び平面図である。乗用田植機の概要は次の通りである。作業者が搭乗する走行車体(10)の車体フレーム(11)には、前部にエンジン(12)と後部にミッションケース(13)が設けられ、ミッションケース(13)の前方両側にフロントアクスルケース(14)を介して水田走行用前輪(15)が支持されるとともに、ミッションケース(13)の後部両側にリヤアクスルケース(16)を介して水田走行用後輪(17)が支持されている。エンジン(12)とその近傍の部材はボンネット(18)で被覆され、ミッションケース(13)とその近傍の部材はステップ(19)を有する車体カバー(20)によって被覆されている。そして、車体カバー(20)の上部に運転席(21)が取り付けられ、その運転席(21)の前方に操向ハンドル(22)が設けられている。   Embodiments of the present invention will be described below based on examples shown in the drawings. 1 and 2 are a side view and a plan view of a main part of the riding rice transplanter. The outline of the riding rice transplanter is as follows. A vehicle body frame (11) of a traveling vehicle body (10) on which an operator rides is provided with an engine (12) at the front and a transmission case (13) at the rear, and a front axle case on both front sides of the transmission case (13). The paddy field traveling front wheel (15) is supported via (14), and the paddy field traveling rear wheel (17) is supported via the rear axle case (16) on both sides of the rear part of the transmission case (13). The engine (12) and its neighboring members are covered with a bonnet (18), and the mission case (13) and its neighboring members are covered with a vehicle body cover (20) having a step (19). A driver's seat (21) is attached to the upper portion of the vehicle body cover (20), and a steering handle (22) is provided in front of the driver's seat (21).

走行車体(10)の後部には、多条植え用の苗載台(31)や複数の植付爪(32)を具備する植付部(30)が連らなる。この植付部(30)は、トップリンク(33)及びロワーリンク(34)を含む3点昇降リンク機構を用いて、走行車体(10)に連結されている。そして、走行車体(10)の後部とロワーリンク(34)との間に介設された油圧シリンダーの伸縮動作によって、昇降自在に構成されている。また、前高後低に設置された板状の前傾式苗載台(31)は、下部ガイドレール(35)及び上部ガイドレール(36)を介して、中央及び左右の植付伝動ケース(37)に対して左右往復摺動自在に支持されている。その植付伝動ケース(37)の下方には、中央及び左右の植付用均平フロート(38)(39)が、植付深さ調節部材を介して支持されている。植付部(30)を降下させて、このフロート(38)(39)を着地させることにより、苗載台(31)の上の苗マットから取り出す苗の植付深さを設定するように構成している。   At the rear of the traveling vehicle body (10), a seedling mounting base (31) for multi-row planting and a planting part (30) having a plurality of planting claws (32) are connected. The planting part (30) is connected to the traveling vehicle body (10) using a three-point lifting link mechanism including a top link (33) and a lower link (34). And it can be moved up and down by an expansion and contraction operation of a hydraulic cylinder interposed between the rear portion of the traveling vehicle body (10) and the lower link (34). In addition, the plate-shaped forward tilting seedling platforms (31) installed at the front and rear and lower positions are arranged in the center and left and right planting transmission cases (via the lower guide rail (35) and the upper guide rail (36)). 37) is supported so as to be slidable in the left-right direction. Below the planting transmission case (37), the center and left and right planting flat floats (38) and (39) are supported via planting depth adjusting members. The planting part (30) is lowered and the float (38) (39) is landed to set the planting depth of the seedlings to be taken out from the seedling mat on the seedling placing stand (31). doing.

図3及び4は、植付部(30)のロータリーケース(40)及びその近傍の側面図及び平面図である。植付伝動ケース(37)には、ミッションケース(13)の後部から延出された駆動軸を介して動力が伝達される。そして、植付伝動ケース(37)内のスプロケットと、それに巻回されているチェーンによって、植付伝動ケース(37)の後端に軸支されている入力軸(41)が回転駆動される。この入力軸(41)に固定されたロータリーケース(40)は、入力軸(41)の回転駆動によって、図1の側面視で反時計方向に回転する。そして、ロータリーケース(40)の回転軸心を中心として対称となる位置には、一対の植付爪ケース(60)(60)が配設され、その植付爪ケース(60)の先端に植付爪(32)が取り付けられている。   3 and 4 are a side view and a plan view of the rotary case (40) of the planting part (30) and the vicinity thereof. Power is transmitted to the planting transmission case (37) via a drive shaft extending from the rear portion of the transmission case (13). And the input shaft (41) pivotally supported by the rear end of the planting transmission case (37) is rotationally driven by the sprocket in the planting transmission case (37) and the chain wound around the sprocket. The rotary case (40) fixed to the input shaft (41) rotates counterclockwise in a side view of FIG. 1 by the rotational drive of the input shaft (41). A pair of planting claw cases (60) and (60) are arranged at positions symmetrical about the rotational axis of the rotary case (40), and are planted at the tip of the planting claw case (60). A claw (32) is attached.

ロータリーケース(40)は、中空状で縦に2つ割り可能に構成されていて、入力軸(41)には太陽歯車(42)が嵌着されている。この太陽歯車(42)と噛合し、かつ、太陽歯車(42)と歯数の等しい中間歯車(44)が中間軸(43)に遊嵌されて回転自在に設けられ、植付駆動軸としてのロータリーカム軸(45)にはロータリーアーム軸(47)が遊嵌されている。そして、このロータリーアーム軸(47)に、中間歯車(44)と常時噛合し、かつ、中間歯車(44)や太陽歯車(42)と歯数の等しい遊星歯車(46)が嵌着されている。   The rotary case (40) is hollow and can be divided into two vertically, and a sun gear (42) is fitted to the input shaft (41). An intermediate gear (44) that meshes with the sun gear (42) and has the same number of teeth as the sun gear (42) is loosely fitted to the intermediate shaft (43) and is rotatably provided. A rotary arm shaft (47) is loosely fitted on the rotary cam shaft (45). A planetary gear (46) that is always meshed with the intermediate gear (44) and has the same number of teeth as the intermediate gear (44) and the sun gear (42) is fitted to the rotary arm shaft (47). .

このような遊星歯車機構を構成する太陽歯車(42)、中間歯車(44)、遊星歯車(46)は、中心や焦点のない非円形歯車か、或いは、中心がずれた位置にある偏心円形歯車であり、また、中間歯車(44)と遊星歯車(46)は、それぞれサブの歯車(44')(46')が重ねられて、2重の歯車に構成されている。遊星歯車(46)(46')に突設したピン(48)に係合するリングバネ(49)が、そのサブ歯車(46')の側方に配置され、2重の遊星歯車(46)(46')が互いにずれるように付勢されるとともに、その遊星サブ歯車(46')と中間サブ歯車(44')を噛合させて、遊星歯車(25)のバックラッシュを防止している。   The sun gear (42), the intermediate gear (44), and the planetary gear (46) that constitute such a planetary gear mechanism are non-circular gears having no center or focal point, or eccentric circular gears that are off-center. Further, the intermediate gear (44) and the planetary gear (46) are configured as double gears by superimposing the sub gears (44 ′) and (46 ′), respectively. A ring spring (49) that engages with a pin (48) projecting from the planetary gears (46) (46 ') is disposed on the side of the sub gear (46'), and the double planetary gear (46) ( 46 ′) is biased so as to be displaced from each other, and the planetary sub-gear (46 ′) and the intermediate sub-gear (44 ′) are engaged to prevent backlash of the planetary gear (25).

植付爪ケース(60)は、ロータリーカム軸(45)に遊嵌しているロータリーアーム軸(47)に姿勢調節自在に固定されている。そのため、回転体としてのロータリーケース(40)が、その回転駆動軸である入力軸(41)によって自転すると、それに伴って、太陽歯車(42)に噛合する中間歯車(44)が、その自転の回転角と同じ回転角だけ同方向に自転する。それと同時に、中間歯車(44)に対して遊星歯車(46)とロータリーアーム軸(47)を介して連動する植付爪ケース(60)は、中間歯車(44)の自転により、ロータリーケース(40)の自転方向とは逆方向に公転する。これによって、植付爪ケース(60)が、苗載台(31)の方向を向いた姿勢で入力軸(41)を中心に旋回運動し、苗載台(31)に対向する植付爪(32)が上から下へ下降する。その旋回運動中に、植付爪(32)の先端部で、苗載台(31)上の苗マットから苗を1株だけ分割して把持し、そのまま旋回運動を続け、その旋回の下降下限で圃場面に苗を植え付ける。   The planting claw case (60) is fixed to the rotary arm shaft (47) loosely fitted to the rotary cam shaft (45) so that the posture can be adjusted. Therefore, when the rotary case (40) as a rotating body is rotated by the input shaft (41) that is the rotation drive shaft, the intermediate gear (44) meshing with the sun gear (42) is accordingly rotated. It rotates in the same direction as the rotation angle. At the same time, the planting claw case (60) interlocked with the intermediate gear (44) via the planetary gear (46) and the rotary arm shaft (47) is rotated by the rotation of the intermediate gear (44). ) Revolves in the opposite direction to the direction of rotation. Thereby, the planting claw case (60) pivots around the input shaft (41) in a posture facing the direction of the seedling table (31), and the planting claw ( 32) descends from top to bottom. During the turning movement, the planting claw (32) is held at the tip of the seedling claw (32) by splitting and holding one seedling from the seedling mat on the seedling stand (31), and continuing the turning movement. To plant seedlings in the field.

遊星歯車機構を構成している太陽歯車(42)、中間歯車(44)、遊星歯車(46)のいずれもが非円形歯車か偏心円形歯車なので、植付爪(32)の先端の軌跡は、図3に示したように、苗を植え付ける前側がカーブし、苗を植え付けた後側が直線に近い偏形楕円状ループになる。そのため、植付爪(32)は、苗を植え付けた直後に、急速に圃場面から上昇する構造になっている。なお、太陽歯車(42)、中間歯車(44)、遊星歯車(46)を非円形歯車にすると、約40株植えの疎植にも対応可能である。   Since the sun gear (42), intermediate gear (44), and planetary gear (46) constituting the planetary gear mechanism are all non-circular gears or eccentric circular gears, the locus of the tip of the planting claw (32) is As shown in FIG. 3, the front side of planting the seedling is curved, and the rear side of planting the seedling is a deformed elliptical loop close to a straight line. Therefore, the planting claw (32) has a structure that rises rapidly from the field scene immediately after planting a seedling. If the sun gear (42), the intermediate gear (44), and the planetary gear (46) are non-circular gears, it is possible to deal with sparse planting of about 40 plants.

植付爪ケース(60)では、図2及び3で示すように、ロータリーカム軸(45)の外方側端部に、カム(61)を介して、プッシュアーム(62)が配設されている。そのプッシュアーム(62)に連携するプッシュロッド(63)の先端に、押出爪(64)が取り付けられている。圃場への植え付け時に、プッシュロッド(63)の突出動作によって、押出爪(64)が植付爪(32)の先端まで押し出され、植付爪(32)が把持している苗を離脱させるようにしている。   In the planting claw case (60), as shown in FIGS. 2 and 3, a push arm (62) is disposed on the outer end of the rotary cam shaft (45) via a cam (61). Yes. An extrusion claw (64) is attached to the tip of a push rod (63) that cooperates with the push arm (62). At the time of planting in the field, the push-out claw (64) is pushed out to the tip of the planting claw (32) by the push-out operation of the push rod (63), so that the seedling held by the planting claw (32) is released. I have to.

すなわち、ロータリーカム軸(45)の回転に伴ってカム(61)が回転し、カム(61)の段部にプッシュアーム(62)の下端部先端が位置しているときには、プッシュアーム(62)はプッシュバネの付勢力によって支軸(65)を中心に前方へ向かって回動してプッシュロッド(63)を突出させ、一方、プッシュアーム(62)の下端部先端がカム(61)に係合しているときには、プッシュバネの付勢力に抗してプッシュアーム(62)を支軸(65)を中心に後方へ向かって回動させてプッシュロッド(63)を引っ込めるように構成されている。このように、植付爪ケース(60)の旋回運動に伴ってプッシュロッド(63)が突出し、そのプッシュロッド(63)の突出動作によって押出爪(64)が押し出されて、植付爪(32)が把持している苗を離脱して植え付ける。   That is, when the cam (61) rotates with the rotation of the rotary cam shaft (45) and the tip of the lower end of the push arm (62) is positioned at the step of the cam (61), the push arm (62) Is pivoted forward about the support shaft (65) by the urging force of the push spring to project the push rod (63), while the lower end of the push arm (62) is engaged with the cam (61). When they are engaged, the push arm (62) is rotated backward about the support shaft (65) against the urging force of the push spring to retract the push rod (63). . Thus, the push rod (63) protrudes with the turning movement of the planting claw case (60), and the pushing claw (64) is pushed out by the projecting operation of the push rod (63), so that the planting claw (32 ) Remove and plant the seedlings that are gripped.

図5は、植付伝動ケース(37)内の一部を示す説明図である。植付伝動ケース(37)の後端に軸支されている入力軸(41)とチェーンを介して連絡される横送り駆動用ベベル(371)と、縦送りカム軸(372)とチェーンを介して連絡される横送り歯車(373)との間に、カウンター歯車(374)が設けられている。カウンター歯車(374)は、用途に応じて交換でき、例えば、苗載台(31)の横送りを不等速に行う場合には、非円形歯車を用い、アームをひとつにして疎植する場合には、1:2のギヤ比の歯車を用い、植付爪(32)の軌跡を変更する場合には、1:1のギヤ比の円形歯車でタイミング調整を行う。カウンター歯車(374)には、図示のように、「S」や「O」のタイミング調整用マークが刻印されている。シフトキー(374a)を操作して、横送り駆動用ベベル(371)に対するカウンター歯車(374)のタイミングを、「O」から「S」へ約30度ずらすと、苗の横送りのタイミングが疎植のタイミングに合うようになる。そのため、植付伝動ケース(37)内の部品を交換することなく、苗送りのタイミングの最適化の他、上部停止位置を変えることなく、苗の取量が安定化される。   FIG. 5 is an explanatory view showing a part of the planting transmission case (37). The input shaft (41) pivotally supported at the rear end of the planting transmission case (37) is connected to the lateral feed drive bevel (371) via the chain, the vertical feed cam shaft (372) and the chain via the chain. A counter gear (374) is provided between the lateral feed gear (373) communicated with each other. The counter gear (374) can be exchanged according to the application. For example, when performing lateral feed of the seedling stage (31) at an inconstant speed, a non-circular gear is used and the arms are sparsely planted. In this case, a gear having a gear ratio of 1: 2 is used, and when changing the locus of the planting claw (32), the timing is adjusted by a circular gear having a gear ratio of 1: 1. The counter gear (374) is engraved with “S” and “O” timing adjustment marks as shown. By operating the shift key (374a) and shifting the timing of the counter gear (374) with respect to the lateral feed drive bevel (371) by about 30 degrees from "O" to "S", the timing of the lateral feed of the seedling is loosely planted. It will come in time with you. Therefore, the amount of seedlings is stabilized without changing the parts in the planting transmission case (37), optimizing the timing of seedling feeding, and changing the upper stop position.

図6は、作業機変速装置としてミッションケース(13)で株間変速を行う様態を示す説明図である。入力軸(131)とアイドル軸(132)とに設けた株間変速切替機構(株間変速)によって、疎植時は植付駆動の回転を不等速にし、植付爪(32)が下死点近傍で高速になるようにしている。すなわち、疎植時には入力軸(131)の歯車(28)と噛合するアイドル軸(132)に配置した非円形歯車(71)を介して植付出力軸(134)を駆動させている。これによって、疎植時に苗が前傾姿勢で植えられないようにし、苗の姿勢の統制に寄与している。
FIG. 6 is an explanatory view showing a state in which a stock shift is performed in a mission case (13) as a work implement transmission device. The inter-strain shift switching mechanism (inter-strain shift) provided on the input shaft (131) and the idle shaft (132) makes the rotation of the planting drive nonuniform at the time of sparse planting, and the planting claw (32) is at bottom dead center. The speed is high in the vicinity. That is, at the time of loose planting, the planting output shaft (134) is driven via the non-circular gear (71) disposed on the idle shaft (132) meshing with the gear (28) of the input shaft (131). This prevents seedlings from being planted in a leaning posture during sparse planting and contributes to the control of the seedling posture.

つまり、植付出力軸(134)を不等速で駆動させる場合には、図6における歯車(75)を有する変速機構を、入力軸(131)上に遊嵌される歯車(74)に噛み合わせることで、入力軸(131)の駆動力が、歯車(28)から非円形歯車(71)を介して、アイドル軸(132)を不等速回転させ、このアイドル軸(132)の動力が、アイドル軸(132)に設けた歯車(24)から上記歯車(74)を通過して変速機構から株間変速軸(133)および副株間変速を介して植付出力軸(134)に不等速として伝達される。
That is, when the planting output shaft (134) is driven at a non-uniform speed, the transmission mechanism having the gear (75) in FIG. 6 is engaged with the gear (74) loosely fitted on the input shaft (131). By matching, the driving force of the input shaft (131) causes the idle shaft (132) to rotate at a non-uniform speed from the gear (28) via the non-circular gear (71), and the power of the idle shaft (132) is increased. From the gear (24) provided on the idle shaft (132), the gear (74) passes through the gear (74) to the planting output shaft (134) from the transmission mechanism via the inter-substrain transmission shaft (133) and the sub-subsidiary transmission. As transmitted.

従って、入力軸(131)と、アイドル軸(132)とに株間変速切替機構(株間変速)を設け、この株間変速切替機構により植付出力軸(134)の回転を等速/不等速に切り替え可能とし、疎植時には入力軸(131)に設けた歯車(28)と、この入力軸(131)に設けた歯車(28)と噛合するアイドル軸(132)に配置した非円形歯車(71)を介して、入力軸(131)の駆動力が植付出力軸(134)を駆動させて植付駆動の回転を不等速にしたので、密植時と疎植時の作業に対応させて植え付けた苗の姿勢を統制させることができる。
Therefore, the inter-strain shift switching mechanism (inter-strain shift) is provided on the input shaft (131) and the idle shaft (132), and the rotation of the planting output shaft (134) is made constant speed / unconstant speed by the inter-strain shift switching mechanism. The non-circular gear (71 ) arranged on the idle shaft (132) meshing with the gear (28) provided on the input shaft (131) and the gear (28) provided on the input shaft (131) can be switched. ) , The driving force of the input shaft (131) drives the planting output shaft (134) to rotate the planting drive at a non-uniform speed. The posture of the planted seedling can be controlled.

また、アイドル軸(132)に伝達され、このアイドル軸(132)から株間変速軸(133)を介して植付出力軸(134)を駆動するので、入力軸(131)の動力をアイドル軸(132)で不等速に確実に切替えて、この不等速回転を植付出力軸(134)に伝達することができる。   Further, since the planting output shaft (134) is transmitted from the idle shaft (132) to the idle shaft (132) via the inter-stock transmission shaft (133), the power of the input shaft (131) is transferred to the idle shaft (132). 132) can be reliably switched to unequal speed, and this unequal speed rotation can be transmitted to the planting output shaft (134).

さらに、植付爪(32)が下死点近傍で高速になるように構成したので、植え付けた苗の姿勢を統制させることができる。   Furthermore, since the planting claw (32) is configured to be high speed near the bottom dead center, the posture of the planted seedling can be controlled.

そして、作業機変速装置の入力軸(131)と、植付出力軸(134)との間には、副株間変速機構(副株間変速)を設けたので、株間変速切替機構で植付出力軸(134)の駆動を、疎植時(不等速)と、密植時(等速)の密植第1段および密植第2段とに切替可能としたことに加えて、上記疎植時(不等速)と、密植時(等速)の密植第1段および密植第2段の各駆動力を、さらに副株間変速機構(副株間変速)によりそれぞれ2段階に切替可能とすることで、植付作業の微調整を行うことができる。
And since the sub-strain shifting mechanism (sub-strain shifting) is provided between the input shaft (131) and the planting output shaft (134) of the work equipment transmission, the planting output shaft is operated by the strain shifting mechanism. In addition to being able to switch the drive of (134) between sparse planting (irregular speed) and dense planting (constant speed) dense planting first stage and dense planting second stage, Constant speed), and the densely planted first stage and densely planted second stage driving force at the time of dense planting (constant speed) can be further switched to two stages by the sub-substrain shifting mechanism (sub-substrain shifting). It is possible to make fine adjustments to the work.

なお、この発明は、株間変速軸を備えるあらゆる田植機に適用することができる。   The present invention can be applied to any rice transplanter equipped with an inter-variety transmission shaft.

10 走行車体
11 車体フレーム
12 エンジン
13 ミッションケース
131 入力軸
132 アイドル軸
133 株間変速軸
134 植付出力軸
DESCRIPTION OF SYMBOLS 10 Traveling vehicle body 11 Body frame 12 Engine 13 Mission case 131 Input shaft 132 Idle shaft 133 Stock transmission shaft 134 Planting output shaft

Claims (4)

田植機の作業機変速装置において、入力軸と、アイドル軸とに株間変速切替機構を設け、該株間変速切替機構により植付出力軸の回転を等速/不等速に切り替え可能とし、疎植時には前記入力軸に設けた歯車と、該入力軸に設けた歯車と噛合する前記アイドル軸に配置した非円形歯車を介して、前記入力軸の駆動力が植付出力軸を駆動させて植付駆動の回転を不等速にしたことを特徴とする田植機の作業機変速装置。   In the work machine transmission of the rice transplanter, an inter-shaft shift switching mechanism is provided on the input shaft and the idle shaft, and the inter-shaft shift switching mechanism allows the rotation of the planting output shaft to be switched between constant speed and non-constant speed. Sometimes, the driving force of the input shaft drives the planting output shaft through the gear provided on the input shaft and the non-circular gear arranged on the idle shaft meshing with the gear provided on the input shaft. A work machine transmission for a rice transplanter, characterized in that the rotation of the drive is made non-uniform. 前記アイドル軸に伝達され、該アイドル軸から株間変速軸を介して植付出力軸を駆動することを特徴とした請求項1に記載の田植機の作業機変速装置。   2. The work machine transmission device for a rice transplanter according to claim 1, wherein the planting output shaft is transmitted to the idle shaft and drives a planting output shaft from the idle shaft through an inter- stock transmission shaft. 植付爪が下死点近傍で高速になるように構成したことを特徴とする請求項1に記載の田植機の作業機変速装置。 2. The work machine transmission of a rice transplanter according to claim 1, wherein the planting claw is configured to be high speed near the bottom dead center. 前記作業機変速装置の前記入力軸と、前記植付出力軸との間には、副株間変速機構を設けたことを特徴とする、請求項1または2に記載の田植機の作業機変速装置。 The work machine transmission for a rice transplanter according to claim 1 or 2 , wherein a sub-strain transmission mechanism is provided between the input shaft of the work machine transmission and the planting output shaft. .
JP2013010408A 2013-01-23 2013-01-23 Rice transplanter work machine transmission Expired - Lifetime JP5350548B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013010408A JP5350548B2 (en) 2013-01-23 2013-01-23 Rice transplanter work machine transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013010408A JP5350548B2 (en) 2013-01-23 2013-01-23 Rice transplanter work machine transmission

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2010153860A Division JP5226039B2 (en) 2010-07-06 2010-07-06 Rice transplanter work machine transmission

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP2013137888A Division JP2013188231A (en) 2013-07-01 2013-07-01 Working machine transmission of rice transplanter
JP2013137887A Division JP2013223506A (en) 2013-07-01 2013-07-01 Working implement transmission for rice transplanter

Publications (2)

Publication Number Publication Date
JP2013099350A JP2013099350A (en) 2013-05-23
JP5350548B2 true JP5350548B2 (en) 2013-11-27

Family

ID=48620664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013010408A Expired - Lifetime JP5350548B2 (en) 2013-01-23 2013-01-23 Rice transplanter work machine transmission

Country Status (1)

Country Link
JP (1) JP5350548B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104657546B (en) * 2015-02-02 2017-06-27 浙江理工大学 The bar drive mechanism of two-stage non-circular gear five forms the method for designing that flowers transplant track

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10327625A (en) * 1997-05-27 1998-12-15 Kubota Corp Transmission structure of rice transplanter
JP3803194B2 (en) * 1998-05-15 2006-08-02 ヤンマー農機株式会社 Passenger rice transplanter
JP3770766B2 (en) * 2000-02-15 2006-04-26 株式会社クボタ Rice transplanter

Also Published As

Publication number Publication date
JP2013099350A (en) 2013-05-23

Similar Documents

Publication Publication Date Title
JP2010094040A (en) Walking rice transplanter
JP2006230244A (en) Transplanter
JP5350548B2 (en) Rice transplanter work machine transmission
JP5923582B2 (en) Rice transplanter work machine transmission
JP5226039B2 (en) Rice transplanter work machine transmission
JP2014042525A (en) Work machine transmission of rice transplanter
JP2013188231A (en) Working machine transmission of rice transplanter
JP2014100127A (en) Seedling transplanter
JP2006230243A (en) Regulating body in transplanter
JP5763150B2 (en) Rice transplanter work machine transmission
JP5833619B2 (en) Rice transplanter work machine transmission
JP2013223506A (en) Working implement transmission for rice transplanter
JP4716482B2 (en) Rotary seedling planting mechanism in rice transplanter
JP4577828B2 (en) Rice transplanter
JP5083712B2 (en) Vegetable seedling transplanter
JP5335446B2 (en) Rice transplanter
JP2013094099A (en) Seedling transplanter
JP2013005743A (en) Transplanter
JP2008263879A (en) Transplanter
JP2006211948A (en) Rice transplanter equipped with rotary type seedling planting mechanism
JP4328289B2 (en) Multi-row type transplanter
JP3997344B2 (en) Seedling transplanter
JP4274969B2 (en) Rice transplanter
JP2010161936A (en) Rice transplanter
JP2002142520A (en) Rotary case for rice transplanter

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A132

Effective date: 20130430

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130701

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130723

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130821

R150 Certificate of patent or registration of utility model

Ref document number: 5350548

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

EXPY Cancellation because of completion of term