JPH0216908A - Working machine for use in paddy field - Google Patents
Working machine for use in paddy fieldInfo
- Publication number
- JPH0216908A JPH0216908A JP16643388A JP16643388A JPH0216908A JP H0216908 A JPH0216908 A JP H0216908A JP 16643388 A JP16643388 A JP 16643388A JP 16643388 A JP16643388 A JP 16643388A JP H0216908 A JPH0216908 A JP H0216908A
- Authority
- JP
- Japan
- Prior art keywords
- working machine
- displacement
- grounding float
- float
- inner wire
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 10
- 241000209094 Oryza Species 0.000 description 7
- 235000007164 Oryza sativa Nutrition 0.000 description 7
- 235000009566 rice Nutrition 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、作業機体に対して上下動自在に接地フロート
を取付けるとともに、作業機体を対地昇降駆動可能な昇
降駆動手段を備え、前記接地フロートの上下動に伴って
、作業機体を対地昇降させるよう、接地フロートと前記
昇降駆動手段とを機械的連係機構を介して連動連結して
ある水田作業機に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides a grounding float that is movably movable up and down on a working machine, and is provided with an elevating drive means that can drive the working machine up and down from the ground. The present invention relates to a paddy field working machine in which a ground float and the lifting drive means are interlocked and connected via a mechanical linkage mechanism so that the working machine is raised and lowered from the ground as the working machine moves up and down.
従来における上記水田作業機の一例である乗用型田植機
においては、例えば実開昭61−105422号公報に
示されているように、作業機体の一例である苗植付装置
の昇降に伴って屈折するリンク機構と、昇降駆動手段の
一例としての制御パルプのスプール操作機構とをレリー
ズワイヤを介して、直接連係させる構造となっていた。In the conventional riding-type rice transplanter, which is an example of the above-mentioned paddy field working machine, as shown in Japanese Utility Model Application Publication No. 61-105422, bending occurs as the seedling planting device, which is an example of the working machine, goes up and down. The link mechanism and the control pulp spool operating mechanism, which is an example of an elevating drive means, are directly linked via a release wire.
上記従来構造は、耕盤の凹凸によって走行機体が上下動
した場合であっても、接地フロートの接地圧の変動に伴
って、苗植付装置が泥面に追従して昇降駆動させるよう
考慮したものである。The above conventional structure takes into consideration that even if the traveling machine moves up and down due to unevenness of the tiller, the seedling planting device follows the mud surface and drives up and down as the ground pressure of the ground float changes. It is something.
ところが、上記したように、接地フロートの接地圧に伴
う相対上下動が、直接、上記操作機構に伝わる構造であ
るので、耕盤あるいは泥面が小さな凹凸が多く続いてい
る場合には、上記したような昇降駆動が頻繁に繰返され
ることとなり、作業機体が振動するハンチング現象が生
じる問題があった。However, as mentioned above, the structure is such that the relative vertical movement caused by the ground pressure of the ground float is directly transmitted to the above operating mechanism, so if the plowing platform or mud surface has many small irregularities, the above-mentioned This kind of lifting and lowering drive is frequently repeated, and there is a problem in that a hunting phenomenon occurs in which the work machine vibrates.
上記問題を解決する方法として例えば油圧式緩衝機構を
介在することも考えられたが、これは構造が複雑となり
、コスト高になる欠点があ本発明の目的は、上記した課
題を解決し、上記ハンチング現象を抑制することのでき
るものを、簡易な構造で得られるようにする点にある。As a way to solve the above problem, it has been considered to use a hydraulic shock absorbing mechanism, for example, but this has the disadvantage of complicating the structure and increasing costs.The purpose of the present invention is to solve the above problems and The aim is to obtain something that can suppress the hunting phenomenon with a simple structure.
本発明は、1記構成の水田作業機において、前記連係機
構の途中部位に、前記接地フロートの上下動に伴う変位
に対して摩擦抵抗力を与える変位抑制機構を、その抵抗
力を変更調節可能に設けてある点にあり、その作用・効
果は次の通りである。In the paddy field work machine having the structure described in 1 above, the present invention provides a displacement suppressing mechanism that applies a frictional resistance force to displacement caused by vertical movement of the ground float, in an intermediate portion of the linkage mechanism, and the resistance force can be changed and adjusted. The functions and effects are as follows.
〔作 用〕
つまり、接地フロートの上下動変位を前記昇降駆動手段
に対して、機械的変位として伝達する連係機構に、前記
変位抑制機構を設けてあるので、田面の状況、例えば凹
凸の多さ、泥硬さの差等に応じて、適度な摩擦抵抗力を
付与して、連係機構の変位を抑制することができるので
ある。そうして、上記したようなハンチング現象を抑止
しながら、大きな凹凸に対しては、適切な昇降制御を行
えるのである。[Function] In other words, since the displacement suppressing mechanism is provided in the linkage mechanism that transmits the vertical displacement of the ground float to the lifting drive means as mechanical displacement, it is possible to control the condition of the field, such as the number of irregularities. According to the difference in mud hardness, an appropriate frictional resistance force can be applied, and displacement of the linkage mechanism can be suppressed. In this way, it is possible to perform appropriate elevating and lowering control over large irregularities while suppressing the hunting phenomenon described above.
その結果、作業機体の昇降駆動制御機能を適正な状態に
維持できるものでありながら、前記機械的連係機構に対
して摩擦抵抗力を付与するという極めて簡易な構造改良
によって、ハンチング現象を抑止することができるもの
となった。As a result, the hunting phenomenon can be suppressed by an extremely simple structural improvement that adds frictional resistance to the mechanical linkage mechanism while maintaining the lifting control function of the working machine in an appropriate state. has become possible.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第4図に、本発明に係る水田作業機の一例である乗用型
田植機の全体側面を示している。この田植機は乗用型走
行機体(V)の後部に、リンク機構(1)を介して苗植
付装置(A)昇降駆動自在に連結して構成してある。第
5図に示すように、走行機体(V) には、前部のボン
ネット(2)内方にエンジン(3)を搭載するとともに
、このエンシンク3)の動力が横向き出力軸(4)から
ベルト伝動機構(5)、静油圧式無段変速装置(以下H
3Tと称する)(6)及び走行ミッション(7)を介し
て、後輪(8)に伝達されるよう構成してある。そして
、前記ボンネット(2)の左右両側には、機体中央の操
縦部(9)における運転ステップ部(10)から前方に
連設され、ボンネット(2)から横側外方に突出する状
態で搭乗用ステップ部(11)、(11)(11)を形
成してある。又、このうちの右側搭乗用ステップ部(1
1)は、前記HS T (6)のチャージ用作動浦のオ
イルタンクに兼用してある。このようにして、その上部
に設けられる予備苗のせ台(12)に載置した苗から落
下する水通を、前記作動油の冷部に用いることができる
よう構成してある。FIG. 4 shows an overall side view of a riding type rice transplanter which is an example of a paddy field working machine according to the present invention. This rice transplanter is constructed by connecting a seedling planting device (A) to the rear part of a riding type traveling body (V) via a link mechanism (1) so that it can be driven up and down. As shown in Figure 5, the traveling body (V) is equipped with an engine (3) inside the front bonnet (2), and the power of this engine sink (3) is transmitted from a horizontal output shaft (4) to a belt. Transmission mechanism (5), hydrostatic continuously variable transmission (hereinafter H
3T) (6) and a driving transmission (7), it is configured to be transmitted to the rear wheels (8). On both the left and right sides of the bonnet (2), the operating step part (10) of the control part (9) in the center of the aircraft is connected to the front, and protrudes laterally outward from the bonnet (2) for boarding. Step portions (11), (11) and (11) are formed. Also, the right side boarding step part (1
1) is also used as the oil tank for the charging operation port of the HST (6). In this way, the structure is such that the water droplet that falls from the seedlings placed on the preliminary seedling stand (12) provided above can be used as the cold section for the hydraulic oil.
次に前記苗植付装置(^)の構造について説明する。Next, the structure of the seedling planting device (^) will be explained.
前記苗植付装置(A)は、前記リンク機構(1)に連結
され、支持フレームを兼用する作業機体としての伝動ケ
ース(13)、伝動ケース(13)の上部に設けられる
苗のせ台(14)、伝動ケース(13)後部に設けられ
る苗植付機構(15)、及び、下部において泥面に接地
する接地フロート (16)及び苗の植付けに伴い肥料
を落下する施肥装置(17)等から成り、この苗植付装
置(A)は、走行機体(V)側に装備される油圧シリン
ダ(18)の伸縮駆動によって昇降駆動可能に構成して
ある。The seedling planting device (A) includes a transmission case (13) that is connected to the link mechanism (1) and serves as a working machine that also serves as a support frame, and a seedling stand (14) provided on the upper part of the transmission case (13). ), a seedling planting mechanism (15) installed at the rear of the transmission case (13), a grounding float (16) that touches the mud surface at the bottom, and a fertilizer application device (17) that drops fertilizer as the seedlings are planted. This seedling planting device (A) is configured to be able to be driven up and down by the telescopic drive of a hydraulic cylinder (18) installed on the traveling body (V) side.
前記接地フロート (16)は、後部横支点(×1)周
りに上下揺動自在に伝動ケース(13)に枢支してあり
、その側部において、施肥装置(17)の下端に備えた
作溝器(19)により泥面に形成した肥料理め込み用溝
を塞いで整地するための土寄せ板(20)を高さ調節自
在に取付けしてある。つまり、第6図に示すように、接
地フロート (16)の側部に上下に複数の凹部(21
)を形成して、いずれかの凹部(2+)!ご択一的に前
記土寄せ板(20)を嵌め込み固定することて高さ調節
できるよう溝成してある。The grounding float (16) is pivotally supported on the transmission case (13) so as to be able to swing up and down around the rear transverse support (x1), and on the side thereof, a mechanism provided at the lower end of the fertilizer application device (17) is connected to the transmission case (13). A mooring board (20) for leveling the ground by closing the groove for inserting the manure layer formed in the mud surface by the groover (19) is attached in a height-adjustable manner. In other words, as shown in FIG. 6, there are a plurality of recesses (21
) to form one of the recesses (2+)! Alternatively, a groove is formed so that the height can be adjusted by fitting and fixing the earthen board (20).
前記接地フD −ト(16)は、苗植付装置(2・\)
つまりは作業機体としての伝動ケース(13)を対地昇
降駆動可能な昇降駆動手段(C) に対して、機体的連
係機構を介して連動連係してある。The grounding foot (16) is a seedling planting device (2・\)
In other words, the transmission case (13) serving as a work machine is interlocked with the lifting drive means (C) capable of driving the transmission case (13) up and down from the ground via the body linkage mechanism.
詳述すると、第1図に示すように、前記接地フロート(
16)の前部側上面において、ブラケノ) (22)を
介して、レリーズワイヤ(23)のインナーワイヤ(2
3a)の一端を連結し、このインナーワイヤ(23a)
の他端を、前記昇降用油圧/リンダ(18)の油圧制御
を行う制御バルブ(24)のスプール操作機構(25)
に連係してある。前記油圧シリンダ(18)及び制御バ
ルブ(24)を昇降駆動手段(C)と称する。In detail, as shown in FIG. 1, the ground float (
16), the inner wire (2) of the release wire (23) is inserted through the bracket (22).
Connect one end of this inner wire (23a)
The other end is connected to a spool operating mechanism (25) of a control valve (24) that controls the hydraulic pressure of the lifting hydraulic pressure/cylinder (18).
It is linked to. The hydraulic cylinder (18) and control valve (24) are referred to as a lifting drive means (C).
前記スプール操作機構(25)は、前記インナーワイヤ
(23a)の引き操作あるいは引張りハネ(26)の付
勢力により回動される回動軸(27)から揺動アーム(
28)の揺動操作により制御バルブ(24)のスプール
(29)を押引操作するよう構成してある。又、前記ス
プール(29)は手動レバー(30)の揺動操作によっ
ても、押引操作できるよう構成してある。The spool operating mechanism (25) rotates a swing arm (
The spool (29) of the control valve (24) is pushed or pulled by the swinging operation of the control valve (28). Further, the spool (29) is constructed so that it can be pushed or pulled by swinging a manual lever (30).
更に詳述すると、走行機体(V)が耕盤の凸部に乗り上
げて、接地フロート (16)が泥面から浮き上がると
、その自重によって前記インナーワイヤ(23a)が引
き操作され、制御バルブ(24)のスプール(29)を
下降位置(CI) に設定して苗植付装置(A>を下降
させスプール(29)を中立位置(n)にさせるのであ
る。More specifically, when the traveling body (V) rides on the convex part of the tiller and the ground float (16) rises from the mud surface, the inner wire (23a) is pulled by its own weight, and the control valve (24) is pulled. ) is set to the lowered position (CI), and the seedling planting device (A> is lowered to bring the spool (29) to the neutral position (n).
又、−万機体(V)が耕盤の凹部に凹入すると、インナ
ーワイヤ<23a>が緩み、引張りバネ(26)により
、スプール(29)を上昇位置(u)に設定して、スプ
ール(29)が中立位置(n)になるまで苗植付装置(
八)を上昇させるのである。Also, when the machine body (V) sinks into the recess of the tiller, the inner wire <23a> becomes loose, and the tension spring (26) sets the spool (29) to the raised position (u), causing the spool ( 29) until it reaches the neutral position (n).
8).
そして、前記レリーズワイヤ(23)の連係途中部位の
接地フロート (16)近傍に、接地フロート(16)
の上下動に伴うインナーワイヤ(23a)の変位に対し
て摩擦抵抗力を与える変位抑制機構を、その抵抗力を変
更調節可能に設:すである。A grounding float (16) is placed near the grounding float (16) in the middle of the connection of the release wire (23).
A displacement suppressing mechanism that provides a frictional resistance force against the displacement of the inner wire (23a) accompanying the vertical movement of the inner wire (23a) is provided so that the resistance force can be changed and adjusted.
詳述すると、第2図及び第3図に示すように、前記レリ
ーズワイヤ(23)のアウタワイヤ(23b)の一部を
切欠いて、その近傍に切欠いた部分において露出するイ
ンナーワイヤ(23a)の外表面に切換摺接可能な3個
の摺接部(31a)、 (31b)(31c)を形成し
た変位抑制機構としての抑制部材(32)を配備してあ
る。Specifically, as shown in FIGS. 2 and 3, a part of the outer wire (23b) of the release wire (23) is cut out, and the outer part of the inner wire (23a) exposed near the cutout is removed. A suppressing member (32) as a displacement suppressing mechanism is provided with three sliding contact portions (31a), (31b), and (31c) that can be selectively slidably contacted on the surface.
つまり、抑制部材(32)は軸芯(×2)周りに回動自
在に支持部材(23c) に枢支してあり、回動させ
て前記摺接部(31a)、 (31b)、 (31c)
のいずれかがインナーワイヤ(23a) に摺接する
状態に切換調節できるよう構成し、各摺接部(31a)
、 (31b)(31c)は夫々ゴム等の弾性体を付設
するとともに、夫々摺接面積が異なるよう形成して、イ
ンナーワイヤ(23a)に対する摩擦抵抗力が夫々異な
るように構成してある。In other words, the suppressing member (32) is rotatably supported by the supporting member (23c) around the axis (x2), and is rotated to prevent the sliding contact portions (31a), (31b), (31c) from rotating. )
It is configured so that either one of the inner wires (23a) can be switched and adjusted to be in sliding contact with the inner wire (23a), and each sliding contact part (31a)
, (31b) and (31c) are each provided with an elastic body such as rubber, and are formed to have different sliding contact areas, so that the friction resistance against the inner wire (23a) is different.
このように、機械的連係機構に摩擦抵抗力に変更調節可
能にするという極めて簡易な構造改良によって、微振動
によるハンチング現象を抑止できるのである。In this way, the hunting phenomenon caused by minute vibrations can be suppressed by an extremely simple structural improvement in which the mechanical linkage mechanism is made adjustable to change the frictional resistance force.
■ 前記変位抑制機構(32)は、第7図に示すように
、回動調節ネジ(33)の先端に摩擦抵抗付与のための
弾性体(34)を設けるよう構成するものであってもよ
い。■ The displacement suppressing mechanism (32) may be configured such that an elastic body (34) for imparting frictional resistance is provided at the tip of the rotation adjustment screw (33), as shown in FIG. .
■ 又、前記変位抑制機構(32)は、前記制御バルブ
(24)の近傍に設けると、泥土の飛散等による悪影響
を回避できて、長期間に亘り安定使用できるので、更に
実用上の利便性が高まることになる。(2) In addition, if the displacement suppressing mechanism (32) is installed near the control valve (24), it is possible to avoid the adverse effects of mud scattering, etc., and it can be used stably for a long period of time, resulting in further practical convenience. will increase.
本発明は、乗用型田植機に限らず歩行型田植機等各種の
水田作業機に適用できる。The present invention is applicable not only to riding-type rice transplanters but also to various rice paddy working machines such as walking-type rice transplanters.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る水田作業機の実施例を示し、第1図
は昇降駆動用連係構造を示す系統図、第2図は要部の切
欠側面図、第3図は要部の横断面図、第4図は全体側面
図、第5図は機体前部の平面図、第6図は接地フロート
の一部断面図、第7図は別実施例の縦断面図である。
(13)・・・・・・作業機体、(16)・・・・・・
接地フロート、(23)・・・・・・機械的連係機構、
(32)・・・・・・変位抑制機構、(C)・・・・・
・昇降駆動手段。The drawings show an embodiment of the rice paddy work machine according to the present invention, FIG. 1 is a system diagram showing the linkage structure for lifting and lowering, FIG. 2 is a cutaway side view of the main part, and FIG. 3 is a cross-sectional view of the main part. , FIG. 4 is an overall side view, FIG. 5 is a plan view of the front part of the fuselage, FIG. 6 is a partial sectional view of the grounding float, and FIG. 7 is a longitudinal sectional view of another embodiment. (13)...Work machine, (16)...
Ground float, (23)... mechanical linkage mechanism,
(32)...Displacement suppression mechanism, (C)...
- Lifting drive means.
Claims (1)
16)を取付けるとともに、作業機体(13)を対地昇
降駆動可能な昇降駆動手段(C)を備え、前記接地フロ
ート(16)の上下動に伴って、作業機体(13)を対
地昇降させるよう、接地フロート(16)と前記昇降駆
動手段(C)とを機械的連係機構(23)を介して連動
連結してある水田作業機であって、前記連係機構(23
)の途中部位に、前記接地フロート(16)の上下動に
伴う変位に対して摩擦抵抗力を与える変位抑制機構(3
2)を、その抵抗力を変更調節可能に設けてある水田作
業機。A ground float (
16) and is equipped with a lifting drive means (C) capable of driving the work machine (13) up and down from the ground, so that the work machine (13) can be raised and lowered from the ground in accordance with the vertical movement of the ground float (16). A paddy field working machine in which a grounding float (16) and the lifting drive means (C) are interlocked and connected via a mechanical linkage mechanism (23), wherein the linkage mechanism (23)
), a displacement suppressing mechanism (3
2) A paddy field working machine that is equipped with a variable and adjustable resistance force.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16643388A JPH0216908A (en) | 1988-07-04 | 1988-07-04 | Working machine for use in paddy field |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16643388A JPH0216908A (en) | 1988-07-04 | 1988-07-04 | Working machine for use in paddy field |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0216908A true JPH0216908A (en) | 1990-01-19 |
Family
ID=15831323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16643388A Pending JPH0216908A (en) | 1988-07-04 | 1988-07-04 | Working machine for use in paddy field |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0216908A (en) |
-
1988
- 1988-07-04 JP JP16643388A patent/JPH0216908A/en active Pending
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