JP5670238B2 - Attachment with cutter for power shovel - Google Patents

Attachment with cutter for power shovel Download PDF

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JP5670238B2
JP5670238B2 JP2011069376A JP2011069376A JP5670238B2 JP 5670238 B2 JP5670238 B2 JP 5670238B2 JP 2011069376 A JP2011069376 A JP 2011069376A JP 2011069376 A JP2011069376 A JP 2011069376A JP 5670238 B2 JP5670238 B2 JP 5670238B2
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attachment
attached
cutter
grapple
inner cylinder
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JP2012202156A (en
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敬雄 西岡
敬雄 西岡
吉浩 本
吉浩 本
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株式会社室戸鉄工所
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Priority to BR102012006919-9A priority patent/BR102012006919A2/en
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Description

本発明は、パワーショベルのアーム先端に装着されるアタッチメントに関し、特にサトウキビ等の作物収穫に適したグラップル機構とカッター機構とを備えたアタッチメントに係る。   The present invention relates to an attachment attached to the end of an arm of a power shovel, and particularly to an attachment including a grapple mechanism and a cutter mechanism suitable for crop harvesting such as sugarcane.

油圧ショベルとも称されるパワーショベルは、アームの先端とフロントリンクの先端の２ヶ所でピン連結し、上下操作するためのアタッチメントを有する。
代表的なアタッチメントは、土砂の掘削等に用いるバケット、建築資材等の搬送や建物の解体等に用いるグラップル等が例として挙げられる。
これに対して本発明は、サトウキビ等の背丈が高く、比較的重量のある作物を刈取り及び搬送するのに好適なグラップル機構とカッター機構とを備えたアタッチメントに関する。
特許文献１はトラクターに設けた作物の刈取り装置を開示するが、パワーショベルに用いることができるものではない。 A power shovel, also referred to as a hydraulic excavator, has an attachment for pin-up operation at two locations, the tip of the arm and the tip of the front link, for vertical operation.
Typical attachments include buckets used for excavating earth and sand, grapples used for transporting building materials, building demolition, and the like.
On the other hand, the present invention relates to an attachment including a grapple mechanism and a cutter mechanism suitable for cutting and transporting a relatively heavy crop such as sugar cane.
Although patent document 1 discloses the crop cutting device provided in the tractor, it cannot be used for a power shovel.

フランス特許２，２２５，０８４号公報French Patent No. 2,225,084

本発明は、グラップル機構とカッター機構とを備えるとともにグラップル単独でも使用可能であり、カッターのスライドシリンダー部に作物が巻き付くのを防止したパワーショベル用アタッチメントの提供を目的とする。   An object of the present invention is to provide an attachment for a power shovel that includes a grapple mechanism and a cutter mechanism and can be used alone, and prevents crops from being wound around the slide cylinder portion of the cutter.

本発明に係るパワーショベル用のアタッチメントは、パワーショベルのアームの先端部に取り付けるアタッチメントであって、上部にグラップル部と、当該グラップル部の下側に回転刃を有するカッター部を備え、前記グラップル部は前記パワーショベルのアームの先端部に装着する左右の取付板に対して、水平方向に直交するように一対の枢支板を上下平行に連結し、前記上下の枢支板の間に左右対向配置された左右の掴み爪の根元側を枢着し、先端部が相互に開閉制御されており、前記カッター部は回転刃を前後方向にスライド可能であり、前記スライド機構は前記取付板に固定した外筒部の内側にシールした状態でスライド自在に内筒部を配設し、当該外筒部と内筒部との内側に内蔵したシリンダー及びピストンロッドにより内筒部が突没制御され、当該内筒部の先端部に取り付けた回転駆動部を介して回転刃を取り付けたことを特徴とする。
このようなアタッチメントを用いると、サトウキビ等の背丈の高い作物をグラップルで掴み束ね、そのままカッターで根元側を刈取り、搬送できる。 An attachment for a power shovel according to the present invention is an attachment to be attached to a tip portion of an arm of a power shovel , comprising a grapple part at an upper part and a cutter part having a rotary blade below the grapple part, the grapple part The left and right mounting plates attached to the tip of the arm of the power shovel are connected in parallel to a pair of pivot plates so as to be orthogonal to the horizontal direction, and are disposed oppositely between the upper and lower pivot plates. The left and right gripping claws are pivotally attached to the base side, and the tip parts are controlled to open and close each other. The cutter part can slide the rotary blade in the front-rear direction, and the slide mechanism is fixed to the mounting plate. An inner cylinder part is slidably arranged in a sealed state inside the cylinder part, and the inner cylinder part is formed by a cylinder and a piston rod built inside the outer cylinder part and the inner cylinder part. Is death control, characterized in that fitted with rotary blade via a rotary driving part attached to the distal end of the inner cylindrical portion.
If such an attachment is used, a tall crop such as sugar cane can be grabbed with a grapple and the root side can be cut and transported with a cutter.

木材の搬送等においては、カッターが不要な場合がある。
そこで本発明は、グラップル部とカッター部とを着脱可能に連結した点にも特徴がある。 A cutter may not be necessary for transporting wood.
Therefore, the present invention is also characterized in that the grapple part and the cutter part are detachably connected.

また、作物をグラップルで掴み束ねた後に刈取るにはカッターが前後方向にスライドするのが好ましい。
そこで本発明で、カッター部は回転刃を前後方向にスライド可能であり、前記スライド機構は外筒部の内側にスライド自在に内筒部を配設し、当該外筒部と内筒部との内側に内蔵したシリンダー及びピストンロッドにより内筒部が突没制御され、当該内筒部の先端部に取り付けた回転駆動部を介して回転刃を取り付ることが好ましい。
このようにすると作物を刈取る際に回転刃のスライド部を構成したシリンダー機構に作物が巻き付くのを防止できる。
また、本発明においては、外筒部は左右の側部からフット部が上下方向に高さ調整可能に設けられており、回転刃が必要以上に下降するのを防止したものでもよい。 In addition, it is preferable that the cutter slides in the front-rear direction in order to harvest the crop after grabbing it with a grapple.
Therefore, in the present invention, the cutter portion can slide the rotary blade in the front-rear direction, and the slide mechanism has an inner cylinder portion slidably disposed inside the outer cylinder portion, and the outer cylinder portion and the inner cylinder portion It is preferable that the inner cylinder portion is protruded and retracted by a cylinder and a piston rod built in the inner side, and the rotary blade is attached via a rotation drive unit attached to the distal end portion of the inner cylinder portion.
If it does in this way, when cutting a crop, it can prevent that a crop wraps around the cylinder mechanism which constituted the slide part of a rotary blade.
In the present invention, the outer cylinder portion may be provided such that the foot portion can be adjusted in the vertical direction from the left and right side portions, and the rotary blade can be prevented from dropping more than necessary.

本発明に係るアタッチメントは、グラップル機構とカッター機構を備えているので、パワーショベルの先端部に装着するだけで、作物の刈取り及び搬送に使用できる。
また、カッター部を分離できるのでグラップルアタッチメントとしても使用可能であり、用途が広がる。
さらには、作物を刈取る際に回転刃を前後方向にスライドさせるためのシリンダー及びピストンロッドを外筒部と外筒部から突没する内筒部に内蔵したので、作物がスライドシリンダー部に巻き付くのを防止できる。 Since the attachment according to the present invention includes a grapple mechanism and a cutter mechanism, the attachment can be used for cutting and transporting crops only by being attached to the tip of the excavator.
Moreover, since a cutter part can be isolate | separated, it can be used also as a grapple attachment and a use expands.
Furthermore, since the cylinder and piston rod for sliding the rotary blade back and forth when cutting the crop are built into the outer cylinder and the inner cylinder protruding from the outer cylinder, the crop is wound around the slide cylinder. It can prevent sticking.

本発明に係るアタッチメントの外観斜視図を示す。The external appearance perspective view of the attachment concerning the present invention is shown. アタッチメントのグラップル部及びカッター部の動作説明図を示す。（ａ）はグラップルが開いた状態、（ｂ）はグラップルが閉じた状態、（ｃ）は回転刃が前進した状態を示す。Operation | movement explanatory drawing of the grapple part and cutter part of an attachment is shown. (A) is a state where the grapple is opened, (b) is a state where the grapple is closed, and (c) is a state where the rotary blade is advanced. アタッチメントの側面図を示す。（ａ）は回転刃が後退した状態、（ｂ）は回転刃が前進した状態、（ｃ）はカッター部をグラップル部から取り外した状態を示す。The side view of an attachment is shown. (A) is a state where the rotary blade is retracted, (b) is a state where the rotary blade is advanced, and (c) is a state where the cutter part is removed from the grapple part. アタッチメントの正面図を示し、カッター部は外筒部の断面図を示す。The front view of an attachment is shown and the cutter part shows sectional drawing of an outer cylinder part. （ａ）はＡ−Ａ線断面図を示し、（ｂ）は作物を掴み束ねた状態、（ｃ）は作物を刈り取った状態を示す。(A) shows a cross-sectional view along line AA, (b) shows a state in which the crop is grasped and bound, and (c) shows a state in which the crop has been cut. アタッチメントをパワーショベルに装着した状態を示す。The state where the attachment is attached to the power shovel is shown.

本発明に係るアタッチメントの構造例を以下図に基づいて説明する。
図１に示すようにアタッチメント１０はパワーショベルの先端部に取り付ける左右２枚の取付板１１，１２と左右の掴み爪２２，２３が開閉動作するグラップル部２０とその下側にカッター部３０を有し、カッター部はスライダー３３により回転刃３１の駆動部３２が前進及び後退するようになっている。 An example of the structure of the attachment according to the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the attachment 10 has a left and right mounting plates 11 and 12 attached to the tip of the excavator, a grapple portion 20 on which the left and right gripping claws 22 and 23 are opened and closed, and a cutter portion 30 on the lower side thereof. In the cutter unit, the drive unit 32 of the rotary blade 31 moves forward and backward by a slider 33.

その動きを図２及び図５にて説明する。
（ａ）はグラップル部２０の左右の掴み爪２２，２３が開いた状態で、この両側の掴み爪２２，２３の内側に作物４を取り込み、掴み束ねる。
その状態で図２（ｂ），（ｃ）に示すように回転刃３１が前進すると作物が根元側で刈取られる。
このようなアタッチメント１０をパワーショベル１の先端部に装着した状態を図６に示す。
パワーショベル１のアーム２の先端部に図１に示す取付孔１１ａ，１２ａをピン連結し、フロントリンク３の先端部に取付孔１１ｂ，１２ｂをピン連結し、作物４の刈取りに使用できる。 The movement will be described with reference to FIGS.
(A) In the state where the left and right grip claws 22 and 23 of the grapple part 20 are open, the crop 4 is taken inside the grip claws 22 and 23 on both sides, and is gripped and bundled.
In this state, as shown in FIGS. 2B and 2C, when the rotary blade 31 moves forward, the crop is cut at the root side.
FIG. 6 shows a state in which such an attachment 10 is attached to the tip of the power shovel 1.
Attaching holes 11 a and 12 a shown in FIG. 1 are connected to the tip of the arm 2 of the power shovel 1, and attaching holes 11 b and 12 b are connected to the tip of the front link 3.

次にグラップル部２０の構造例を図４及び図５に基づいて説明する。
左右の取付板１１，１２に対して水平方向に直交するように枢支板２１，２１を上下に平行に連結する。
この上下の枢支板の間に左右の掴み爪２２，２３の根元側を枢支軸２１ａ，２１ｂを介して枢着してある。
左右の掴み爪２２，２３は弓形形状の爪を内側が凹部になるように左右対向配置されている。
左右の掴み爪２２，２３が相互に閉じる際に左右の爪が干渉しないように本実施例では、左右の掴み爪２２，２３を上下の弓形形状の爪の先端部を連結板２２ｂ，２３ｂで上下方向に連結するとともに左側の掴み爪２２が右側の掴み爪２３の内側に入り込むように連結板の上下方向の長さに差を設けてある。 Next, a structural example of the grapple part 20 will be described with reference to FIGS.
The pivot plates 21 and 21 are connected vertically in parallel so as to be orthogonal to the left and right mounting plates 11 and 12 in the horizontal direction.
Between the upper and lower pivot plates, the base sides of the left and right grip claws 22 and 23 are pivotally attached via pivot shafts 21a and 21b.
The left and right gripping claws 22 and 23 are arranged opposite to each other so that the inside of the bow-shaped claw is a recess.
In this embodiment, the left and right gripping claws 22 and 23 are connected to the upper and lower arcuate claw tips by connecting plates 22b and 23b so that the left and right gripping claws 22 and 23 do not interfere with each other when the left and right gripping claws 22 and 23 are closed. A difference is provided in the length in the vertical direction of the connecting plate so that the left gripping claw 22 enters the inside of the right gripping claw 23 while being connected in the vertical direction.

左右の掴み爪２２，２３は上下の爪の根元側を連結パイプ２２ａ，２３ａで連結し、この連結パイプに略三角形形状の連結ブラケットを取り付けて、枢着軸２１ａ，２１ｂと連結してある。
本実施例は図５（ａ）の掴み爪が開いた状態で説明すると、左側の連結ブラケットは上段側のリンク連結ブラケット２５ａと下段側のシリンダー連結ブラケット２４ｂとを有し、右側の連結ブラケットは上下段とも同じ形状の上段側のリンク連結ブラケット２５ｃと下段側のシリンダー連結ブラケット２４ｅを有する。
左側のリンク連結ブラケット２５ａは図５（ａ）の状態で枢着軸２１ａよりも前方に位置するリンク軸２５ｂを有し、右側のリンク連結ブラケット２５ｃは枢着軸２１ｂよりも後方に位置するリンク軸２５ｄを有し、同期リンク２５の両端部をこの左右のリンク軸２５ｂ，２５ｄに軸着してある。
一方、下段側の左側のシリンダー連結ブラケット２４ｂは、枢着軸２１ａよりも後方側に位置する回動軸２４ｃを有し、右側のシリンダー連結ブラケット２４ｅは同期リンク２５のリンク軸２５ｄと同軸の回動軸２４ｄを有し、左右の回動軸２４ｃ，２４ｄは一方をシリンダー２４の後部に他方をピストンロッド２４ａの先端部と軸着連結してある。
よって、図示を省略した油圧回路等によりシリンダー２４のピストンロッド２４ａが突出前進すると図５（ｂ）に示すようにその動きが同期リンク２５を介してリンク連結ブラケット２５ａ，２５ｃが回動するので、左右の掴み爪が相互に閉じる。
本実施例では枢支板２１に設けた左右のストッパー２１ｃ，２１ｄと爪側に設けたストッパー２２ｃ，２３ｃが当接することで掴み爪２２，２３の閉じる角度を制限する。 The left and right gripping claws 22 and 23 are connected to the pivot shafts 21a and 21b by connecting the base sides of the upper and lower claws with connecting pipes 22a and 23a, and attaching a substantially triangular connecting bracket to the connecting pipe.
This embodiment will be described with the gripping claw shown in FIG. 5 (a) open. The left connecting bracket includes an upper link connecting bracket 25a and a lower cylinder connecting bracket 24b, and the right connecting bracket is The upper and lower tiers have an upper link coupling bracket 25c and a lower cylinder coupling bracket 24e having the same shape.
The left link connecting bracket 25a has a link shaft 25b positioned in front of the pivot shaft 21a in the state of FIG. 5A, and the right link connection bracket 25c is a link positioned rearward of the pivot shaft 21b. A shaft 25d is provided, and both ends of the synchronous link 25 are attached to the left and right link shafts 25b and 25d.
On the other hand, the lower cylinder connecting bracket 24b on the left side has a rotating shaft 24c located rearward of the pivot shaft 21a, and the right cylinder connecting bracket 24e rotates coaxially with the link shaft 25d of the synchronous link 25. The left and right rotating shafts 24c and 24d are connected to the rear portion of the cylinder 24 and the other to the tip of the piston rod 24a.
Therefore, when the piston rod 24a of the cylinder 24 protrudes and advances by a hydraulic circuit or the like not shown, the movement of the link connecting brackets 25a and 25c rotates via the synchronous link 25 as shown in FIG. The left and right grip claws close each other.
In this embodiment, the left and right stoppers 21c, 21d provided on the pivot plate 21 and the stoppers 22c, 23c provided on the claw side come into contact with each other to limit the closing angle of the gripping claws 22, 23.

次にカッター部３０の構造例を図３に基づいて説明する。
カッター部３０の上部に設けた取付フランジ３０ａを用いて取付板１１，１２の下部１２ｃにボルト等の固定具４０を介して取り外し可能に設けてある。
図３（ｃ）はカッター部３０をグラップル部２０から取り外した状態を示す。
カッター部３０は回転する回転刃３１を駆動軸３２ａを介して駆動部３２に取り付けてあり、駆動部３２は内筒部３３ｃの先端部に連結し、内筒部３３ｃは外部とシールした状態で外筒部３３ｂの内側を突没スライドする。
内筒部３３ｃ及び外筒部３３ｂの内側にシリンダー３３ｄとピストンロッド３３ｅを内蔵してあり、ピストンロッド３３ｅの先端部を内筒の内側先端部に連結部３３ｆで連結した。
これにより、油圧配管を接続口３３ａに接続するだけで回転刃３１を駆動部３２で回転させながら前進、後退動作ができ、ピストンロッド３３ｅに作物が巻き付くのを防止する。
また、外筒部３３の左右の側部からフット部３４が上下方向に高さ調整可能に設けられている。
フット部３４は左右の脚部３４ａ，３４ａと脚部の下端に前後方向水平に取り付けたソリ部３４ｂ，３４ｂを有し、回転刃３１が必要以上に下降するのを防止している。 Next, the structural example of the cutter part 30 is demonstrated based on FIG.
A mounting flange 30a provided at the upper part of the cutter unit 30 is provided on the lower part 12c of the mounting plates 11 and 12 so as to be removable via a fixing tool 40 such as a bolt.
FIG. 3C shows a state in which the cutter unit 30 is removed from the grapple unit 20.
The cutter unit 30 has a rotating rotary blade 31 attached to the drive unit 32 via a drive shaft 32a. The drive unit 32 is connected to the tip of the inner cylinder part 33c, and the inner cylinder part 33c is sealed from the outside. The inner cylinder 33b slides inside and outside.
A cylinder 33d and a piston rod 33e are built inside the inner cylinder part 33c and the outer cylinder part 33b, and the tip of the piston rod 33e is connected to the inner tip of the inner cylinder by a connecting part 33f.
Thereby, it is possible to move forward and backward while rotating the rotary blade 31 by the drive unit 32 only by connecting the hydraulic piping to the connection port 33a, and prevent the crop from being wound around the piston rod 33e.
Moreover, the foot part 34 is provided from the right and left side parts of the outer cylinder part 33 so that height adjustment is possible to an up-down direction.
The foot part 34 has left and right leg parts 34a, 34a and sled parts 34b, 34b attached horizontally to the front and rear direction at the lower ends of the leg parts to prevent the rotary blade 31 from being lowered more than necessary.

１０ アタッチメント
１１ 取付板
１２ 取付板
２０ グラップル部
２１ 枢支板
２２ 掴み爪
２３ 掴み爪
２４ 開閉シリンダー
３０ カッター部
３１ 回転刃
３２ 駆動部
３３ スライダー
３４ フット部 DESCRIPTION OF SYMBOLS 10 Attachment 11 Mounting plate 12 Mounting plate 20 Grapple part 21 Pivoting plate 22 Grasp claw 23 Grasping claw 24 Opening and closing cylinder 30 Cutter part 31 Rotary blade 32 Drive part 33 Slider 34 Foot part

Claims (2)

パワーショベルのアームの先端部に取り付けるアタッチメントであって、
上部にグラップル部と、当該グラップル部の下側に回転刃を有するカッター部を備え、
前記グラップル部は前記パワーショベルのアームの先端部に装着する左右の取付板に対して、水平方向に直交するように一対の枢支板を上下平行に連結し、
前記上下の枢支板の間に左右対向配置された左右の掴み爪の根元側を枢着し、先端部が相互に開閉制御されており、
前記カッター部は回転刃を前後方向にスライド可能であり、前記スライド機構は前記取付板に固定した外筒部の内側にシールした状態でスライド自在に内筒部を配設し、当該外筒部と内筒部との内側に内蔵したシリンダー及びピストンロッドにより内筒部が突没制御され、当該内筒部の先端部に取り付けた回転駆動部を介して回転刃を取り付けたことを特徴とするパワーショベル用アタッチメント。 An attachment attached to the tip of the arm of a power shovel,
A grapple part at the top and a cutter part having a rotating blade on the lower side of the grapple part ,
The grapple part is connected to the left and right mounting plates attached to the tip of the arm of the power shovel, and a pair of pivot plates are connected in parallel vertically so as to be orthogonal to the horizontal direction,
The base side of the left and right gripping claws arranged opposite to each other between the upper and lower pivot plates is pivotally attached, and the tips are controlled to open and close each other.
The cutter part can slide the rotary blade in the front-rear direction, and the slide mechanism has an inner cylinder part slidably disposed in a sealed state inside the outer cylinder part fixed to the mounting plate, and the outer cylinder part The inner cylinder part is controlled to project and retract by a cylinder and a piston rod built inside the inner cylinder part, and a rotary blade is attached via a rotation drive part attached to the tip part of the inner cylinder part. Attachment for excavators. 前記外筒部は左右の側部からフット部が上下方向に高さ調整可能に設けられており、回転刃が必要以上に下降するのを防止したことを特徴とする請求項１記載のパワーショベル用アタッチメント。 The power shovel according to claim 1, wherein the outer cylindrical portion is provided with foot portions that can be adjusted in height in the vertical direction from the left and right side portions, and the rotating blade is prevented from being lowered more than necessary. Attachment for.
JP2011069376A 2011-03-28 2011-03-28 Attachment with cutter for power shovel Expired - Fee Related JP5670238B2 (en)

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CN201210082237.XA CN102696342B (en) 2011-03-28 2012-03-26 The power digger attachment arrangement of subsidiary cutter
BR102012006919-9A BR102012006919A2 (en) 2011-03-28 2012-03-28 ACCESSORY FOR AN EXCAVATOR

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JP6976739B2 (en) * 2017-06-27 2021-12-08 良三 松本 Felling cutting machine
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