JPH0520630Y2

JPH0520630Y2 -

Info

Publication number: JPH0520630Y2
Application number: JP18938786U
Authority: JP
Priority date: 1986-12-09
Filing date: 1986-12-09
Publication date: 1993-05-27
Anticipated expiration: 2001-12-09
Also published as: JPS6393286U

Description

【考案の詳細な説明】〔産業上の利用分野〕本考案は、傾斜面や凹凸面でもハーフクローラ
の高さを調節して機体を水平にしながら作業がで
きるようにしたコンバインにおけるハーフクロー
ラの高さ調節装置に関する。[Detailed description of the invention] [Field of industrial application] The present invention is a height adjustment method for the half crawler of a combine harvester, which allows work to be done while keeping the machine horizontal by adjusting the height of the half crawler even on sloped or uneven surfaces. The present invention relates to a height adjustment device.

[Conventional technology]

従来は、接地側となる前後のアイドラおよびそ
の間の各転輪と上方の駆動スプロケツトに掛装す
る両ハーフクローラを機体の下部両側に配備して
構成するコンバインにおいて、前後のアイドラお
よびその間の各転輪は駆動スプロケツトの軸心か
あるいはその近傍の支点を中心にして回動できる
だけの構造になつていた。 Conventionally, in a combine, the front and rear idlers on the ground contact side, each roller between them, and both half crawlers, which are attached to the upper drive sprocket, are installed on both sides of the lower part of the machine. The wheels were structured so that they could rotate around the axis of the drive sprocket or a fulcrum near it.

なお、特開昭55−31614号公報に見られるもの
は、油圧シリンダにより緊張輪を接地させたり浮
上させたりする構造になつており、また、実開昭
57−181684号公報に見られるものは、それぞれに
転輪群を装着できるトラツクフレームの下方に補
助トラツクフレームを取付けることができるよう
にした構造になつている。 In addition, the one seen in Japanese Patent Application Laid-open No. 55-31614 has a structure in which the tension wheel is grounded or floated by a hydraulic cylinder, and it is also
The structure shown in Japanese Patent No. 57-181684 is such that an auxiliary track frame can be attached below a track frame to which a group of wheels can be attached.

[Problems that the invention attempts to solve]

したがつて、麦や豆の収穫時には、圃場が畦な
どのために傾斜面が多く、高さ調節ができないハ
ーフクローラでは機体が傾斜して作業が困難とな
るといつた問題点を有している。 Therefore, when harvesting wheat or beans, the field has many sloping surfaces due to ridges, and half-crawlers whose height cannot be adjusted have the problem of tilting the machine and making work difficult. .

なお、特開昭55−31614号公報に見られるもの
では、クローラの高さ調節ができず、また、実開
昭57−18164号公報に見られるものでは、補助ト
ラツクフレームをいちいち取付けたり取外したり
して面倒な作業となつたり、任意の高さ調節がで
きないといつた問題点を有している。 In addition, the height of the crawler cannot be adjusted in the structure disclosed in Japanese Unexamined Patent Publication No. 55-31614, and the height of the crawler cannot be adjusted in the structure disclosed in Japanese Utility Model Application Publication No. 57-18164. However, there are problems in that it is a tedious work and the height cannot be adjusted arbitrarily.

[Means for solving problems]

本考案は、それら問題点を解決し、ハーフクロ
ーラの高さを任意に調節できるようにしたもので
あり、そのため、駆動スプロケツトの軸心上にそ
れぞれ回動自在に枢支した両支持杆の下端部には
両アイドラをそれぞれ軸架するとともに、一方の
アイドラを転輪側より離れる方向に移動可能に軸
架し、両支持杆の間に伸縮体を介装し、一方の支
持杆には緊張輪を架設して構成したものである。 The present invention solves these problems and makes it possible to adjust the height of the half crawler as desired. Therefore, the lower ends of both support rods, which are rotatably supported on the axis of the drive sprocket, Both idlers are mounted on shafts, and one idler is mounted on a shaft so that it can move away from the rolling wheel side.A telescopic body is interposed between both support rods, and one support rod is tensioned. It is constructed by erecting rings.

[Effect]

したがつて、伸縮体を伸縮させると、両支持杆
はその間の交角を変化させてそれぞれの傾斜角度
が変化することになり、両アイドラの間隔が変化
するとともに緊張輪によりクローラを緊張させな
がら、駆動スプロケツトの軸心とクローラの接地
面との高さを変更調節することができることにな
る。 Therefore, when the telescoping body is extended or contracted, the intersection angles between the support rods change and the inclination angles of the two support rods change.As the spacing between the idlers changes, the tension ring tensions the crawler. This means that the height between the axis of the drive sprocket and the ground plane of the crawler can be changed and adjusted.

〔Example〕

次に、図面に示す実施例について説明する。 Next, the embodiment shown in the drawings will be described.

第２図は軸流形コンバインの側面図を示し、右
側前方に搭乗運転部ａを有して脱穀部８や籾タン
ク部９からなる本機Ａの下部前方両側にはハーフ
クローラ４ａ，４ｂを、後方両側には操向輪１０
ａ，１０ｂをそれぞれ配備し、本機Ａの前方には
油圧シリンダ１１により昇降させることができる
フイーダ室１２を連通連設し、該フイーダ室１２
の前部には、リール１３、刈刃１４、掻込オーガ
１５等を有する刈取部Ｂを連設して従来形構造同
様に構成する。 Figure 2 shows a side view of an axial flow type combine harvester, which has a boarding section a on the front right side and half crawlers 4a and 4b on both sides of the lower front of the machine A, which consists of a threshing section 8 and a paddy tank section 9. , steering wheels 10 on both rear sides
a and 10b, and a feeder chamber 12 that can be raised and lowered by a hydraulic cylinder 11 is provided in communication with the front of the machine A.
A reaping section B having a reel 13, a cutting blade 14, a scraping auger 15, etc. is connected to the front part of the reaping section B, and is constructed in the same manner as the conventional structure.

左右の両ハーフクローラ４ａ，４ｂの上部は、
従来形同様に機体の両側に軸架した両駆動スプロ
ケツト３，３にそれぞれ掛合するが、角駆動スプ
ロケツト３の軸３ａ上には両支持杆５ａ，５ｂの
上端部をそれぞれ回動自由に枢着し、３個の各転
輪２を軸架したパイプ形トラツクフレーム１６の
前端部にはアイドラ１ａを軸架するとともに、一
方の前記支持杆５ａの下端部をアイドラ１ａの軸
心上に枢着し、前記トラツクフレーム１６に摺動
自在に嵌合して後方に延出するステー１７の後端
部にはアイドラ１ｂを軸架するとともに、他方の
前記支持杆５ｂの下端部をアイドラ１ｂの軸心上
に枢着し、接地側となる両アイドラ１ａ，１ｂお
よび各転輪２にハーフクローラ４ａ，４ｂをそれ
ぞれ掛装して構成する。 The upper parts of both the left and right half crawlers 4a, 4b are
Like the conventional model, it engages with both drive sprockets 3, 3, which are mounted on both sides of the fuselage, but the upper ends of both support rods 5a, 5b are pivoted freely on the shaft 3a of the angular drive sprocket 3, respectively. An idler 1a is mounted on the front end of a pipe-shaped track frame 16 on which each of the three wheels 2 is mounted, and the lower end of one of the support rods 5a is pivoted on the axis of the idler 1a. An idler 1b is mounted on the rear end of a stay 17 that is slidably fitted into the track frame 16 and extends rearward, and the lower end of the other support rod 5b is connected to the shaft of the idler 1b. Half crawlers 4a and 4b are mounted on both idlers 1a and 1b, which are pivotally mounted on the center and are on the ground contact side, and on each roller 2, respectively.

また、一方の支持杆５ａの中間部に架着したピ
ン１８には伸縮体である油圧シリンダ６の端部を
枢着し、他方の支持杆５ｂの中間部に架着したピ
ン１９には、前記油圧シリンダー６より延出する
ピストンロツド６ａの先端側を枢着し、支持杆５
ｂに回動自在に枢着したアーム２０の先端には、
クローラに内接する緊張輪７を軸架し、支持杆５
ｂ側の突出片２１と前記アーム２０との間に引張
ばね２２を連繋して構成するが、緊張輪７は他の
手段により緊弛自在にして構成することもでき
る。 Further, the end of a hydraulic cylinder 6, which is a telescoping body, is pivotally connected to a pin 18 that is attached to the intermediate portion of one of the support rods 5a, and the pin 19 that is attached to the intermediate portion of the other support rod 5b is The tip side of the piston rod 6a extending from the hydraulic cylinder 6 is pivotally connected to the support rod 5.
At the tip of the arm 20 rotatably attached to b,
A tension ring 7 inscribed in the crawler is mounted on a shaft, and a support rod 5
A tension spring 22 is connected between the protruding piece 21 on the b side and the arm 20, but the tension ring 7 can also be configured to be tensioned and relaxed by other means.

したがつて、油圧シリンダ６を縮小作動させる
と、アイドラ１ｂが転輪２側に接近するとともに
両支持杆５ａ，５ｂの交角θ₁が小さくなつて、第
４図に示すように、駆動スプロケツト３の軸心と
クローラの接地面との間となる高さH₁が高くな
り、また、油圧シリンダ６を伸長作動させると、
アイドラ１ｂが転輪２側より離れるとともに両支
持杆５ａ，５ｂの交角θ₂が大きくなつて、第５図
に示すように、駆動スプロケツト３の軸心とクロ
ーラの接地面との間となる高さH₂が低くなるこ
とになつて、油圧シリンダ６の作動により両クロ
ーラ４ａ，４ｂの高さを自由に調節できることに
なり、そのように調節しても、両クローラ４ａ，
４ｂは緊張輪７が内接して常に緊張させることが
できることになる。 Therefore, when the hydraulic cylinder 6 is reduced, the idler 1b approaches the wheel 2 side and the intersection angle θ ₁ between the support rods 5a, 5b becomes smaller, causing the drive sprocket 3 to move closer to the drive sprocket 3, as shown in FIG. When the height _H1 between the axis of
As the idler 1b moves away from the wheel 2 side, the intersection angle θ ₂ between the support rods 5a and 5b increases, and as shown in FIG. 5, the height between the axis of the drive sprocket 3 and the ground plane of the crawler increases As the height _H2 becomes lower, the height of both crawlers 4a, 4b can be freely adjusted by operating the hydraulic cylinder 6, and even with such adjustment, the heights of both crawlers 4a,
4b is inscribed with tension ring 7 and can be kept under tension at all times.

コンバイン作業時に、圃場面が傾斜したり凹凸
がある場合、一方のクローラのみを、また、左右
のクローラ４ａ，４ｂを適宜、高さ変更させるこ
とにより、機体を水平姿勢に近くして作業できる
ことになる。 When working with a combine harvester, if the field is sloped or uneven, by changing the height of only one crawler or the left and right crawlers 4a and 4b as appropriate, you can work with the machine in a nearly horizontal position. Become.

[Effect of idea]

このように本考案は、それぞれの伸縮対６を作
動させながら両支持杆５ａ，５ｂの交角を変化さ
せることによつて、左右の両クローラ４ａ，４ｂ
の高さをそれぞれ調節できることになり、しか
も、緊張輪７の内接により常にクローラを緊張さ
せて良好に駆動できることになり、圃場面が傾斜
したり凹凸があつても、一方のクローラ、または
両クローラ４ａ，４ｂの高さを適宜、変えること
によつて機体を水平姿勢に近くして良好にコンバ
イン作業を行なうことができることになり、ま
た、一方のアイドラ１ｂを転輪２側に接近させた
り移動させることによつてクローラを容易に着脱
することができることになり、簡単な構造にして
好適に実施できる特長を有する。 In this way, the present invention operates both the left and right crawlers 4a, 4b by changing the intersection angles of both the support rods 5a, 5b while operating the respective telescoping pairs 6.
The height of each can be adjusted individually, and the tension ring 7 is inscribed so that the crawler can always be tensioned and driven properly, so even if the field is sloped or uneven, one or both crawlers can be adjusted. By appropriately changing the heights of the crawlers 4a and 4b, it is possible to keep the machine in a horizontal position and perform combine harvesting work well. By moving the crawler, the crawler can be easily attached and detached, and has the advantage that it can be easily implemented with a simple structure.

[Brief explanation of drawings]

第１図は本考案の実施例である要部の側面図、
第２図はコンバインの側面図、第３図はその平面
図、第４図は第１図の一部を示し、第５図は第４
図の作動説明図を示す。１ａ，１ｂ……アイドラ、２……転輪、３……
駆動スプロケツト、４ａ，４ｂ……ハーフクロー
ラ、５ａ，５ｂ……支持杆、６……油圧シリンダ
ー、７……緊張輪。 Figure 1 is a side view of the main parts of an embodiment of the present invention;
Figure 2 is a side view of the combine harvester, Figure 3 is its top view, Figure 4 is a part of Figure 1, and Figure 5 is the combine harvester.
The operation explanatory diagram of the figure is shown. 1a, 1b...idler, 2...wheel, 3...
Drive sprocket, 4a, 4b...half crawler, 5a, 5b...support rod, 6...hydraulic cylinder, 7...tension wheel.

Claims

[Scope of utility model registration request]

In a combine that is constructed by disposing front and rear idlers 1a, 1b on the ground contact side, each of the rollers 2 between them, and both half crawlers 4a, 4b that are hung on the upper drive sprocket 3 on both sides of the lower part of the machine body,
Both idlers 1a and 1b are mounted on the lower ends of the supporting rods 5a and 5b, which are rotatably supported on the axis of the drive sprocket 3, respectively, and one idler 1b is mounted from the side of the rolling wheels 2. A half-crawler characterized in that it is mounted on a shaft so as to be movable in the direction of separation, an extendable body 6 is interposed between both support rods 5a and 5b, and a tension ring 7 is installed on one support rod 5b. height adjustment device.