JPH0124210Y2 - - Google Patents
Info
- Publication number
- JPH0124210Y2 JPH0124210Y2 JP1983095568U JP9556883U JPH0124210Y2 JP H0124210 Y2 JPH0124210 Y2 JP H0124210Y2 JP 1983095568 U JP1983095568 U JP 1983095568U JP 9556883 U JP9556883 U JP 9556883U JP H0124210 Y2 JPH0124210 Y2 JP H0124210Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- support
- hydraulic cylinder
- dozer
- hand
- 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
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Shovels (AREA)
Description
【考案の詳細な説明】
この考案は、ハンドドーザーに装備したバツク
ホー作業部のブーム構造に関するものである。[Detailed description of the invention] This invention relates to a boom structure of a backhoe working section installed in a hand dozer.
従来、ハンドドーザーに装備したバツクホー作
業部のブーム構造は、断面形状が略ロ字形状であ
り、ブーム支持体及びブーム回動油圧シリンダが
同ブーム外部に装着されているので機体全長が長
くなり、小回りが利かないという欠点があつた。 Conventionally, the boom structure of the backhoe working section installed on hand dozers has a roughly rectangular cross-sectional shape, and the boom support and boom rotation hydraulic cylinder are attached to the outside of the boom, making the overall length of the machine longer. The drawback was that it was difficult to turn around.
この考案では、ブーム断面形状を前方向に開口
した略コ字形状に構成し、同開口部に収納状態に
ブーム基端を枢支するブーム支持体及びブーム回
動油圧シリンダを配設することにより機体の全長
を短縮して、ハンドドーザーが小回りが利くよう
にすることができるバツクホー作業部のブーム構
造を提供せんとするものである。 In this invention, the boom cross-section is formed into a substantially U-shape with an opening in the front direction, and a boom support body and a boom rotation hydraulic cylinder that pivotally support the boom base end in the stored state are disposed in the opening. It is an object of the present invention to provide a boom structure for a backhoe working part that can shorten the overall length of the machine and enable the hand dozer to make small turns.
この考案の実施例を図面にもとづいて詳細に説
明すれば、第1図は、ハンドドーザーA前端にバ
ツクホー作業部Bを連設したハンドドーザー、バ
ツクホー兼用作業機を示しており、ハンドドーザ
ーAは、クローラー式走行装置1を装備した機体
フレーム2前部にエンジン3が載設されており、
ベルト伝導装置4を介して同フレーム2後部に連
設されたミツシヨン5に動力を伝達し、同ミツシ
ヨン5を介して同ミツシヨン5下方の駆動輪6に
動力が伝達され、同駆動輪6及び機体フレーム2
前端に連設された遊動輪7及び同フレーム2下面
に多数配設された転輪8の外周を囲繞する無端状
のクローラ9に動力が伝達されてハンドドーザー
Aを走行せしめるように構成されており、ミツシ
ヨン5後部には、ハンドドーザーA及びバツクホ
ー作業部Bを操作するための操作部10が連設さ
れている。なお、1aは、クローラ式走行装置1
の走行フレームを示す。機体フレーム2前方には
排土板11が昇降自在に連設されており、同フレ
ーム2前端には、バツクホー作業部Bを支持すべ
く、平面形略三角形状に前方向に突設された取付
台12前端部にブーム支持体13が垂直枢軸14
を介して左右回動自在に枢支連設されており、同
支持体13左側面から左側方向に突設された連結
部15に連動連結されたリンク機構16を介して
機体フレーム2左側面に配設された左右回動油圧
シリンダ17の伸縮作動によつて同支持体13を
左右回動作動せしめるように構成されており、同
支持体13は側方から見てその後部を開口13−
1して、略コ字形状に形成しており、取付台12
の前端を挾持すべく構成している。 An embodiment of this invention will be described in detail based on the drawings. Fig. 1 shows a hand dozer/backhoe combination working machine in which a backhoe working part B is connected to the front end of the hand dozer A. , an engine 3 is mounted on the front part of the fuselage frame 2 equipped with a crawler-type traveling device 1,
The power is transmitted to a transmission 5 connected to the rear of the frame 2 via a belt transmission device 4, and is transmitted to a drive wheel 6 below the transmission 5 via the transmission 5, and the drive wheel 6 and the fuselage. frame 2
The hand dozer A is configured so that power is transmitted to an endless crawler 9 surrounding the outer periphery of an idler wheel 7 connected to the front end and a large number of rolling wheels 8 arranged on the lower surface of the frame 2, thereby causing the hand dozer A to travel. At the rear of the mission 5, an operating section 10 for operating a hand dozer A and a backhoe working section B is provided in series. In addition, 1a is a crawler type traveling device 1
The running frame is shown. A soil removal plate 11 is connected to the front of the fuselage frame 2 so as to be able to be raised and lowered, and a mounting plate having a substantially triangular planar shape and protruding forward is provided at the front end of the frame 2 to support the backhoe working section B. A boom support 13 is attached to a vertical pivot 14 at the front end of the platform 12.
It is pivotally connected to the left side of the fuselage frame 2 via a link mechanism 16 that is interlocked and connected to a connecting part 15 that protrudes leftward from the left side of the support 13. The support body 13 is configured to be rotated left and right by the expansion and contraction of a horizontal rotation hydraulic cylinder 17 provided therein, and the support body 13 has an opening 13- at its rear when viewed from the side.
1, it is formed into a substantially U-shape, and the mounting base 12
It is configured to hold the front end of the
また、ブーム支持体13は、その前部を側面視
略三角形状に形成して、その前端にブーム枢支部
13−6が設けられ、ブーム枢支部13−6に
は、水平枢支軸18を水平方向に挿通し、同軸1
8を中心にして上下回動自在にブーム基部19−
1が枢支連結されている。 The front part of the boom support 13 has a substantially triangular shape in side view, and a boom pivot 13-6 is provided at the front end of the boom support 13. A horizontal pivot 18 is attached to the boom pivot 13-6. Insert horizontally, coaxial 1
The boom base 19- can be moved up and down about 8.
1 are pivotally connected.
さらに、かかるブーム19は、断面形が後方に
開口19−2した略コ字形状であり、同ブームの
基部19−1内にブーム支持体13を収納し、同
支持体13の左右側面13−2,13−3及び前
面13−4をブーム19の左右側板19−3,1
9−4及び前面19−5によつて被覆している。 Furthermore, the boom 19 has a substantially U-shaped cross section with an opening 19-2 at the rear, and the boom support 13 is housed in the base 19-1 of the boom, and the left and right side surfaces 13-2 of the support 13 are 2, 13-3 and the front 13-4 to the left and right side plates 19-3, 1 of the boom 19.
9-4 and the front surface 19-5.
また、ブーム支持体13の上端部には、シリン
ダヘツド枢支部13−5が形成されており、同ブ
ーム19の先端に設けたブーム先端枢軸20と、
同枢支部13−5との間にブーム回動油圧シリン
ダ21が設けられ、同シリンダ21の伸縮作動に
よつて、ブーム支持体13の水平枢軸18を中心
にしてブーム19を上下回動させるように構成し
ている。 Further, a cylinder head pivot portion 13-5 is formed at the upper end of the boom support 13, and a boom tip pivot 20 provided at the tip of the boom 19,
A boom rotation hydraulic cylinder 21 is provided between the pivot portion 13-5, and the boom 19 is moved up and down about the horizontal pivot 18 of the boom support 13 by the expansion and contraction of the cylinder 21. It is composed of
かかる油圧シリンダ21は、ブーム19内に収
納されており、ブーム19は側面形略長三角形状
で同ブーム下面は、同ブーム直立時ブーム支持体
13との接触をさけるために略半円弧状に切欠1
3aされており、同ブーム19先端には、同先端
左右側板19−6,19−7によつて挾持状態と
なつたアーム22中途部がブーム先端枢軸20を
介入して枢支連結されており、ブーム19後部上
端縁に立設されたブラケツト23と、アーム後端
との間に架設されたアーム回動油圧シリンダ24
の伸縮作動によつてアーム22が上下回動するよ
うに構成され、アーム22先端には、バケツト回
動油圧シリンダ25によつて上下回動するバケツ
ト26が上下回動自在に枢支連結されており、各
油圧シリンダの伸縮作動によりバケツト26を回
動させてバツクホー作業を行うように構成されて
いる。 The hydraulic cylinder 21 is housed in a boom 19, and the boom 19 has a substantially elongated triangular side surface, and the lower surface of the boom has a substantially semicircular arc shape to avoid contact with the boom support 13 when the boom is upright. Notch 1
3a, and the middle part of an arm 22, which is held in place by the left and right side plates 19-6 and 19-7 of the boom 19, is pivotally connected to the tip of the boom 19 through the intervention of a boom tip pivot 20. , an arm rotation hydraulic cylinder 24 installed between a bracket 23 erected on the rear upper edge of the boom 19 and the rear end of the arm.
The arm 22 is configured to move up and down by the expansion and contraction operation of the arm 22, and a bucket 26 is pivotally connected to the tip of the arm 22 so as to be vertically movable by a bucket rotating hydraulic cylinder 25. The bucket cart 26 is rotated by the expansion and contraction of each hydraulic cylinder to perform the bucket hoe work.
この考案の実施例は上記のように構成されてお
り、エンジン3の動力は走行装置1に伝達されて
ハンドドーザーAを走行せしめると共に排土板1
1を昇降せしめて排土作業を行うと共に、各油圧
シリンダ17,21,24,25を操作部10か
らの操作により適宜伸縮作動せしめて、ブーム1
9左右旋回、ブーム9、アーム22及びバケツト
26を上下回動せしめてバツクホー作業を遂行す
るものであり、ブーム開口部19−2に、ブーム
支持体13及びブーム回動油圧シリンダ21が挿
入収納された状態にあり、ブーム回動油圧シリン
ダ21によるアーム22の下方回動が阻害され
ず、機体の全長が短縮されているので小回りが利
くと共に、ブーム19によつてブーム回動油圧シ
リンダ21を外部障害物から保護している。 The embodiment of this invention is constructed as described above, and the power of the engine 3 is transmitted to the traveling device 1 to make the hand dozer A travel, and also to drive the earth removal plate 1.
The boom 1 is raised and lowered to perform earth removal work, and the hydraulic cylinders 17, 21, 24, and 25 are operated to expand and contract as appropriate by operating the operation unit 10.
The boom 9, the arm 22, and the bucket 26 are moved up and down to perform bucket hoe work.The boom support 13 and the boom rotation hydraulic cylinder 21 are inserted and stored in the boom opening 19-2. In this state, the downward rotation of the arm 22 by the boom rotation hydraulic cylinder 21 is not obstructed, and the overall length of the aircraft body is shortened, making it possible to make small turns. Protects from obstacles.
この考案によれば、ハンドドーザーに装備する
バツクホー作業部のブームを前方向に開口した略
コ字形状断面に構成し、同開口部にブーム支持体
のブーム枢支部及びブーム回動油圧シリンダを収
納せしめることにより、機体全長を短縮して小回
りを良くすると共にブーム回動油圧シリンダを外
部障害物から保護するという効果がある。 According to this invention, the boom of the backhoe working part installed in the hand dozer is configured to have a substantially U-shaped cross section with a forward opening, and the boom pivot part of the boom support and the boom rotation hydraulic cylinder are housed in the opening. This has the effect of shortening the overall length of the fuselage, improving turning radius, and protecting the boom rotation hydraulic cylinder from external obstacles.
第1図はハンドドーザー、バツクホー兼用作業
機全体側面図、第2図は要部背面図、第3図は第
2図−断面図。
A:ハンドドーザー、B:バツクホー作業部、
13:ブーム支持体、19:ブーム、19−1:
ブーム開口部、20:ブーム回動油圧シリンダ。
Fig. 1 is a side view of the entire hand dozer/backhoe working machine, Fig. 2 is a rear view of the main parts, and Fig. 3 is a sectional view of Fig. 2. A: Hand dozer, B: Backhoe work section,
13: Boom support, 19: Boom, 19-1:
Boom opening, 20: Boom rotation hydraulic cylinder.
Claims (1)
してバツクホー作業部Bのブーム19を上下回動
自在に取付け、同ブーム19の断面形状を後方向
に開口部19−1を有した略コ字状に形成し、 さらに、同ブーム19内にブーム支持体13の
ブーム枢支部13−6と、同ブーム19を上方に
回動させるブーム回動油圧シリンダ21とを収納
するとともに、同ブーム枢支部13−6に同ブー
ム回動油圧シリンダ21の基部を枢支連結したこ
とを特徴とするバツクホー作業部のブーム構造。[Claim for Utility Model Registration] The boom 19 of the backhoe working section B is attached to the front part of the fuselage frame 2 via the boom support 13 so as to be movable up and down, and the cross-sectional shape of the boom 19 is arranged so that the opening 19 faces toward the rear. Furthermore, within the boom 19, a boom pivot portion 13-6 of the boom support 13 and a boom rotation hydraulic cylinder 21 for rotating the boom 19 upward are provided. A boom structure for a backhoe working section, characterized in that the base of the boom rotation hydraulic cylinder 21 is pivotally connected to the boom pivot portion 13-6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9556883U JPS604639U (en) | 1983-06-20 | 1983-06-20 | Boom structure of backhoe working part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9556883U JPS604639U (en) | 1983-06-20 | 1983-06-20 | Boom structure of backhoe working part |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS604639U JPS604639U (en) | 1985-01-14 |
JPH0124210Y2 true JPH0124210Y2 (en) | 1989-07-24 |
Family
ID=30228167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9556883U Granted JPS604639U (en) | 1983-06-20 | 1983-06-20 | Boom structure of backhoe working part |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS604639U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4260321A (en) * | 1979-09-04 | 1981-04-07 | Deere & Company | Lock mechanism for securing a backhoe boom and swing frame for transport |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5758308Y2 (en) * | 1977-01-10 | 1982-12-14 |
-
1983
- 1983-06-20 JP JP9556883U patent/JPS604639U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4260321A (en) * | 1979-09-04 | 1981-04-07 | Deere & Company | Lock mechanism for securing a backhoe boom and swing frame for transport |
Also Published As
Publication number | Publication date |
---|---|
JPS604639U (en) | 1985-01-14 |
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