JPS6124007Y2 - - Google Patents
Info
- Publication number
- JPS6124007Y2 JPS6124007Y2 JP1980033680U JP3368080U JPS6124007Y2 JP S6124007 Y2 JPS6124007 Y2 JP S6124007Y2 JP 1980033680 U JP1980033680 U JP 1980033680U JP 3368080 U JP3368080 U JP 3368080U JP S6124007 Y2 JPS6124007 Y2 JP S6124007Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder device
- lifting
- rod
- valve
- lifting cylinder
- 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
Links
- 230000003028 elevating effect Effects 0.000 description 8
- 238000003971 tillage Methods 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009333 weeding Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Agricultural Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Actuator (AREA)
Description
【考案の詳細な説明】
本考案は、車体装着型の管理用作業機の耕深調
節を容易に行なうことができるようにしたトラク
タの作業機昇降装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a work machine lifting device for a tractor that allows easy adjustment of plowing depth of a management work machine mounted on a vehicle body.
農作業において、作物の成長途上に行なう管理
作業（中耕、除草、培土、簡易耕起、砕土等）は
農作業のなかでも重要な作業の１つであり、この
作業に費やす労力も極めて大きい。なかでも中
耕、除草作業における耕深に関しては作物の成育
状態に応じて耕深を変える必要があり、通常収穫
までに５〜６回の中耕、除草が行なわれ、その度
毎の耕深調節は面倒なものであつた。特にタバコ
栽培においては10数回の管理作業を行なわなけれ
ばならず、耕深調節手段の容易化が切望されてい
た。 In agricultural work, management work (inter-tillage, weeding, soil cultivation, simple tillage, soil crushing, etc.) performed during the growing stage of crops is one of the most important tasks in agricultural work, and the amount of labor required for this work is extremely large. In particular, it is necessary to change the plowing depth during inter-tillage and weeding work depending on the growth state of the crop, and usually inter-tillage and weeding are performed 5 to 6 times before harvesting, and the plowing depth must be adjusted each time. It was a hassle. In tobacco cultivation in particular, management operations must be carried out more than ten times, and there has been a strong desire for an easier means of adjusting tillage depth.
従来の管理作業の耕深調節手段は、(1)第１図に
おけるギヤング１に対するシヤンク２の垂直位置
を調整する。(2)ロツド３の長さ調整、または昇降
アーム４に複数個の孔を設けてこのアーム４と上
記ロツド３との連結点の変換により耕深調節を行
なうという手段があつたが、上記(1)の手段では、
４連あるいは６連等の多連ツールタイプの場合、
それぞれのツール５のシヤンク２を調整しなけれ
ばならず耕深調節作業が面倒であつた。また上記
(2)の手段では、各ツール５の位置を同時に変える
ことができるが、レバー比が変つてしまうため、
連結点の位置によつては作業機が上昇しなくなつ
たり、耕深次第ではシヤンク２やギヤング１の上
昇時にこれらが車体下部に干渉したり、ツール５
の上昇高さが低くなる場合が生じ、シヤンク２の
位置を再調整しなければならないことがある。そ
してさらに上記(1)，(2)の手段では、作業機装着装
置を他機種と共用しようとしても、各々の機種の
構造により取付位置を共通にするのが困難な場合
が多く、昇降用のシリンダもまた高価であるにも
かかわらず、非共通になりコスト的にも高くつく
ものであつた。 Conventional plowing depth adjustment means for management work include (1) adjusting the vertical position of the shank 2 with respect to the gearing 1 in FIG. 1; (2) There is a method of adjusting the plowing depth by adjusting the length of the rod 3 or by providing a plurality of holes in the lifting arm 4 and changing the connection point between this arm 4 and the rod 3, but the above ( In method 1),
In the case of multiple tool types such as 4 or 6 tools,
The shank 2 of each tool 5 had to be adjusted, making the work of adjusting the plowing depth troublesome. Also above
With the method (2), the positions of each tool 5 can be changed at the same time, but the lever ratio changes, so
Depending on the location of the connection point, the work equipment may not be able to rise, and depending on the depth of plowing, the shank 2 and gearing 1 may interfere with the lower part of the car body when rising, or tool 5 may
The rising height of the shank 2 may become lower, and the position of the shank 2 may have to be readjusted. Furthermore, with the above measures (1) and (2), even if you try to share the work equipment mounting device with other models, it is often difficult to make the mounting position common due to the structure of each model, and the Although cylinders are also expensive, they are not common and are expensive.
本考案は上記の問題を解決するためになされた
もので、作業機を昇降するための昇降シリンダ装
置に設けたストツパの位置を調節するだけで作業
機による耕深の調節ができ、管理用作業機の耕深
の調節を極めて簡単に、しかも異なる機種の管理
作業機を共通に行なうことができ、また作業機の
下降側の停止は昇降シリンダ装置の下降側の油圧
回路が閉じられることによつてなされるため、こ
の下降側の停止時に部材と部材が衝突するような
ことがなくなり、作業機を衝撃力や騒音が発生す
ることなく下降限に停止することができるように
したトラクタの作業機装置を提供しようとするも
のである。 This invention was made to solve the above problem, and the plowing depth of the work machine can be adjusted by simply adjusting the position of the stopper provided on the lifting cylinder device for raising and lowering the work machine. Adjustment of the plowing depth of the machine is extremely easy and can be done in common for different types of work machines, and the descending side of the work machine can be stopped by closing the hydraulic circuit on the descending side of the lifting cylinder device. This tractor work machine prevents members from colliding with each other when stopping on the descending side, making it possible to stop the work machine at the lower limit without generating impact force or noise. The aim is to provide equipment.
以下その構成を図面を参照して説明する。 The configuration will be explained below with reference to the drawings.
複数個のツール５のシヤンク２を支持するギヤ
ング１はトラクタ６の車体７に枢着されており、
またこのギヤング１は車体７に枢支された中間ア
ーム８に連結してある。そしてこの中間アーム８
はロツド３を介して昇降アーム４も連結してあ
り、この昇降アーム４を回動することによりロツ
ド３、中間アーム８を介してギヤング１が昇降動
されるようにしてある。上記昇降アーム４には一
端を車体７に枢着した昇降シリンダ９のピストン
ロツド１０が連結してある。 A gearing 1 supporting shank 2 of a plurality of tools 5 is pivotally mounted to a vehicle body 7 of a tractor 6,
Further, this gearing 1 is connected to an intermediate arm 8 which is pivotally supported on the vehicle body 7. And this intermediate arm 8
A lifting arm 4 is also connected via a rod 3, and by rotating this lifting arm 4, the gearing 1 is moved up and down via the rod 3 and intermediate arm 8. A piston rod 10 of a lifting cylinder 9 whose one end is pivotally connected to the vehicle body 7 is connected to the lifting arm 4.
上記昇降シリンダ装置９は第２図に示すように
なつていて、シリンダ１１のボトム室１１ａとロ
ツド室１１ｂのうちのボトム室１１ａに連通する
ポート１２内に、ポート内圧力で開となり、外力
にて閉となる開閉弁１３を介装し、この開閉弁１
３の一部はシリンダ１１より突出してあり、この
開閉弁１３の突出部はピストンロツド１０に固着
されるストツパ１４に対向してある。このストツ
パ１４はピストンロツド１０の長手方向に移動可
能にしてある。１５はシリンダ１１のロツド室１
１ｂに連通するポート、１６は昇降シリンダ装置
１１のコントロールバルブである。 The elevating cylinder device 9 is constructed as shown in FIG. 2, and has a port 12 communicating with the bottom chamber 11a of the bottom chamber 11a and rod chamber 11b of the cylinder 11, which is opened by internal pressure and resists external force. An on-off valve 13 that closes when the on-off valve 1
3 protrudes from the cylinder 11, and this protruding portion of the on-off valve 13 faces a stopper 14 fixed to the piston rod 10. This stopper 14 is movable in the longitudinal direction of the piston rod 10. 15 is the rod chamber 1 of the cylinder 11
A port 16 communicating with 1b is a control valve for the lifting cylinder device 11.
しかして昇降シリンダ装置９を伸縮動させるこ
とによりギヤング１は昇降され、その上昇側の停
止位置は昇降シリンダ装置９の伸長側のストロー
クエンドにてきめられ、また下降側、すなわち耕
深設定位置は昇降シリンダ装置９の短縮側のスト
ロークエンドにてきめられる。 The gearing 1 is raised and lowered by extending and contracting the lifting cylinder device 9, and the stopping position on the rising side is determined at the stroke end on the extension side of the lifting cylinder device 9, and the descending side, that is, the plowing depth setting position is determined at the stroke end on the extension side of the lifting cylinder device 9. The stroke end of the elevating cylinder device 9 on the shortening side is determined.
上記昇降シリンダ装置９の短縮側のストローク
エンドはピストンロツド１０に固定したストツパ
１４が開閉弁１３の突出部に当接してこれを押し
込みボトム側のポート１２の連通を閉じることに
よりきめられる。従つて上記ストツパ１４の位置
を軸方向に位置を移動することによりそのストロ
ークが変えられ、ギヤング１の下降側、すなわち
耕深定位置が変えられる。 The shortening stroke end of the elevating cylinder device 9 is determined by a stopper 14 fixed to the piston rod 10 coming into contact with the protrusion of the on-off valve 13 and pushing it in to close communication with the port 12 on the bottom side. Therefore, by moving the position of the stopper 14 in the axial direction, its stroke can be changed, and the lowering side of the gearing 1, that is, the plowing depth setting position can be changed.
なおストツパ１４が当接して開閉弁１３が閉じ
はじめるとボトム室１１ａからのもどり油で開閉
弁１３は閉じ方向にこの開閉弁１３のストローク
エンドまで移動され、停止状態では第３図に示す
ようにストツパ１４と突出部との間に隙間ｃがで
きる。 Note that when the stopper 14 comes into contact with the on-off valve 13 and the on-off valve 13 begins to close, the on-off valve 13 is moved in the closing direction to the stroke end of the on-off valve 13 by the return oil from the bottom chamber 11a, and in the stopped state, as shown in FIG. A gap c is created between the stopper 14 and the protrusion.
本考案は以上のようになり、昇降アーム４を回
動することによりロツド３、中間アーム８等のリ
ンク機構を介してトラクタ６の車体７に対して作
業機が昇降し、かつ上記昇降アーム４に、一端を
車体７に枢着した昇降シリンダ装置９を連結した
トラクタの作業機装置において、上記昇降シリン
ダ装置９のシリンダ１１のボトム室１１ａとロツ
ド室１１ｂのうちのボトム室１１ａに連通するポ
ート１２内に、ポート内圧力で開となり、外力に
て閉となる開閉弁１３を介装し、この開閉弁１３
の一部をシリンダ１１のロツド側端部に突出し、
また上記昇降シリンダ装置９のピストンロツド１
０に、昇降シリンダ装置９が上記作業機を下降す
る方向に作動したときに上記開閉弁１３の突出部
に当接してこれを閉動作するストツパ１４を長手
方向に移動可能に設けた構成となつているから、
作業機の下降側、すなわち耕深設定位置の変更を
何個所もの調節を必要とせず、ストツパ１４の位
置を変えるだけで昇降シリンダ装置９のストロー
クが変えられて作業機による耕深の調節ができ、
管理用作業機の耕深の調節を極めて簡単に行なう
ことができる。 The present invention is as described above, and by rotating the lifting arm 4, the working machine is raised and lowered with respect to the vehicle body 7 of the tractor 6 via the link mechanism such as the rod 3 and the intermediate arm 8, and the lifting arm 4 In a tractor work equipment device in which an elevating cylinder device 9 is connected to the vehicle body 7 at one end, a port communicating with the bottom chamber 11a of the bottom chamber 11a of the cylinder 11 of the elevating cylinder device 9 and the rod chamber 11b is provided. 12, an on-off valve 13 that opens due to internal port pressure and closes due to external force is installed, and this on-off valve 13
a part of which protrudes from the rod side end of the cylinder 11,
Also, the piston rod 1 of the elevating cylinder device 9
0, a stopper 14 is provided so as to be movable in the longitudinal direction, for abutting against and closing the protrusion of the opening/closing valve 13 when the lifting cylinder device 9 operates in the direction of lowering the working machine. Because I have
The lowering side of the working machine, that is, changing the plowing depth setting position, does not require adjustment at multiple locations, and by simply changing the position of the stopper 14, the stroke of the lifting cylinder device 9 can be changed, and the plowing depth can be adjusted by the working machine. ,
The plowing depth of the management implement can be adjusted extremely easily.
また本考案によればレバー比は常に一定にな
り、これにより作業機が上昇しなくなるとか、ギ
ヤング１と車体７との干渉、ツール５の上昇高さ
が低くなりすぎて走行に支障をきたすという事態
も生じなくなる。そしてさらに作業機を他機種と
共用する場合においてもストロークが任意に変え
られるので、高価な油圧シリンダの共通使用も可
能となり、安価なリンク部分のみの変更で対応で
きコスト上からも有利なものとなる。またさらに
作業機の下降側の停止は昇降シリンダ装置の下降
側の油圧回路が閉じられることによつてなされる
ため、この下降側の停止時に部材と部材が衝突す
るようなことがなくなり、作業機を衝撃力や騒音
が発生することなく下降限に停止することができ
る。また作業機の下降時には昇降シリンダ装置９
のポート内回路が閉じられるため、昇降シリンダ
装置９はその位置で油圧的にロツクされ、このと
き仮にコントロールバルブ１６を中立に戻したと
しても作業機は下降状態でロツクされ、作業機に
押し上げ、押し下げ力が作用しても作業機の高さ
は変らず一定の高さを保持することができる。 In addition, according to the present invention, the lever ratio is always constant, which prevents the work equipment from rising, interferes with the gearing 1 and the car body 7, and causes the tool 5 to rise too low, which may impede running. The situation will no longer occur. Furthermore, even when the work equipment is shared with other models, the stroke can be changed arbitrarily, making it possible to share the common use of expensive hydraulic cylinders, which is advantageous from a cost perspective as it can be done by changing only the inexpensive link parts. Become. Furthermore, since the work equipment is stopped on the descending side by closing the hydraulic circuit on the descending side of the lifting cylinder device, collisions between members will not occur when the work equipment is stopped on the descending side, and the work equipment will be prevented from colliding with other members. can be stopped at the lower limit without generating impact force or noise. Also, when the work equipment is lowered, the lifting cylinder device 9
Since the circuit in the port is closed, the lifting cylinder device 9 is hydraulically locked in that position, and even if the control valve 16 is returned to neutral at this time, the work machine will be locked in the lowered state and the work machine will be pushed up to the work machine. Even if a downward force is applied, the height of the work equipment does not change and can be maintained at a constant height.
第１図は全体側面図、第２図は昇降シリンダ装
置の断面図、第３図は昇降シリンダ装置の要部を
示す拡大断面図である。
３はロツド、４は昇降アーム、６はトラクタ、
７は車体、８は中間アーム、９は昇降シリンダ装
置。
FIG. 1 is an overall side view, FIG. 2 is a sectional view of the elevating cylinder device, and FIG. 3 is an enlarged sectional view showing essential parts of the elevating cylinder device. 3 is a rod, 4 is a lifting arm, 6 is a tractor,
7 is a vehicle body, 8 is an intermediate arm, and 9 is a lifting cylinder device.
Claims (1)
中間アーム８等のリンク機構を介してトラクタ６
の車体７に対して作業機が昇降し、かつ上記昇降
アーム４に、一端を車体７に枢着した昇降シリン
ダ装置９を連結したトラクタの作業機装置におい
て、上記昇降シリンダ装置９のシリンダ１１のボ
トム室１１ａとロツド室１１ｂのうちのボトム室
１１ａに連通するポート１２内に、ポート内圧力
で開となり、外力にて閉となる開閉弁１３を介装
し、この開閉弁１３の一部をシリンダ１１のロツ
ド側端部に突出し、また上記昇降シリンダ装置９
のピストンロツド１０に、昇降シリンダ装置９が
上記作業機を下降する方向に作動したときに上記
開閉弁１３の突出部に当接してこれを閉動作する
ストツパ１４を長手方向に移動可能に設けたこと
を特徴とするトラクタの作業機装置。 By rotating the lifting arm 4, the rod 3,
The tractor 6 is connected via a link mechanism such as an intermediate arm 8.
In a working machine device for a tractor, in which a working machine moves up and down with respect to a vehicle body 7, and a lifting cylinder device 9 whose one end is pivotally connected to the vehicle body 7 is connected to the lifting arm 4, the cylinder 11 of the lifting cylinder device 9 is connected to the lifting arm 4. An on-off valve 13 that is opened by pressure inside the port and closed by external force is installed in the port 12 that communicates with the bottom chamber 11a of the bottom chamber 11a and the rod chamber 11b, and a part of this on-off valve 13 is It protrudes from the rod side end of the cylinder 11, and the lifting cylinder device 9
A stopper 14 is provided on the piston rod 10 of the piston rod 10 so as to be movable in the longitudinal direction, so that the stopper 14 comes into contact with the protrusion of the opening/closing valve 13 to close it when the lifting cylinder device 9 operates in the direction of lowering the working machine. A tractor work equipment device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980033680U JPS6124007Y2 (en) | 1980-03-17 | 1980-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980033680U JPS6124007Y2 (en) | 1980-03-17 | 1980-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56136506U JPS56136506U (en) | 1981-10-16 |
| JPS6124007Y2 true JPS6124007Y2 (en) | 1986-07-18 |
Family
ID=29629332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980033680U Expired JPS6124007Y2 (en) | 1980-03-17 | 1980-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6124007Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938735U (en) * | 1982-09-06 | 1984-03-12 | ヤンマーディーゼル株式会社 | Lifting device for Midmount work equipment |
| JPS61141804A (en) * | 1984-12-14 | 1986-06-28 | ヤンマーディーゼル株式会社 | Lift apparatus of mid-mount working machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817932Y2 (en) * | 1977-06-10 | 1983-04-12 | 井関農機株式会社 | Pressure cylinder safety device |
| JPS5525790Y2 (en) * | 1977-09-12 | 1980-06-21 |
-
1980
- 1980-03-17 JP JP1980033680U patent/JPS6124007Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56136506U (en) | 1981-10-16 |
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