JPS5830848Y2 - Mounting structure of arm drive device for excavation work on excavation work vehicle - Google Patents
Mounting structure of arm drive device for excavation work on excavation work vehicleInfo
- Publication number
- JPS5830848Y2 JPS5830848Y2 JP1977031898U JP3189877U JPS5830848Y2 JP S5830848 Y2 JPS5830848 Y2 JP S5830848Y2 JP 1977031898 U JP1977031898 U JP 1977031898U JP 3189877 U JP3189877 U JP 3189877U JP S5830848 Y2 JPS5830848 Y2 JP S5830848Y2
- Authority
- JP
- Japan
- Prior art keywords
- excavation work
- swivel base
- vertical axis
- bracket
- swivel
- 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
Landscapes
- Shovels (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
【考案の詳細な説明】
本考案は、車体に縦軸芯周りで駆動回動及び固定自在に
設けられた旋回台に、上下揺動及び屈伸自在な掘削作業
用アームを縦軸芯周りで流体圧シリンダーにより揺動及
び固定自在に設けた掘削作業車に関し、詳しくは、前記
掘削作業車における掘削作業用アーム駆動装置の取付構
造の改良に関する。[Detailed description of the invention] This invention is based on a swivel platform that is installed on the vehicle body so that it can be rotated and fixed freely around the vertical axis, and an arm for excavation work that can swing vertically and freely bend and extend. The present invention relates to an excavation work vehicle that is swingably and fixedly provided by a pressure cylinder, and specifically relates to an improvement in the mounting structure of an excavation work arm drive device in the excavation work vehicle.
従来のこの種取付構造においては、前記流体圧シリンダ
ーの基端側軸支軸を、アームを旋回台に取付けるために
旋回台上に立設された補強部材に設けていたため、旋回
台の駆動操作に伴い、流体圧シリンダーに作用する作業
用アームの強大な揺動慣性力により補強部材の変形や破
損を生じやすく、また補強部材に十分な強度を持たそう
とすれば、強固な構造や構造部材を採用しなければなら
なくなり、その結果、構造が複雑になったり、製作費が
高価になったりする問題があり、また掘削作業用アーム
をこの流体圧シリンダーにより揺動するための縦軸芯を
旋回台とは別個の部材により支持する構造も、前記と同
様の強度上、経済上の問題がある。In the conventional mounting structure of this kind, the base end side shaft of the fluid pressure cylinder was provided on a reinforcing member erected on the swivel base in order to attach the arm to the swivel base, so it was difficult to drive the swivel base. Along with this, the reinforcing members are likely to be deformed or damaged due to the strong rocking inertia of the working arm that acts on the fluid pressure cylinder, and if the reinforcing members are to have sufficient strength, it is necessary to have a strong structure or structural members. As a result, the structure becomes complicated and the manufacturing cost increases, and the vertical axis for swinging the excavation work arm by this hydraulic cylinder has to be changed. A structure that is supported by a member separate from the swivel table also has the same problems in terms of strength and economy as described above.
本考案は、上記実情に鑑みて、前記掘削作業用アーム駆
動装置の取付構造を、掘削作業車本来の強度部材を有効
利用した極めて簡単な構造改良により、変形や破損の無
い状態で該取付構造を得られるよう(こすることを目的
とする。In view of the above-mentioned circumstances, the present invention has been proposed to improve the mounting structure of the arm drive device for excavation work with an extremely simple structure that effectively utilizes the strength members inherent in the excavation work vehicle. The purpose is to rub it so that it can be obtained.
次に、本考案の実施例を図面に基づいて説明する。Next, embodiments of the present invention will be described based on the drawings.
クローラ式走行装置1を備えた車体に油圧モータ2と旋
回レース22により縦軸芯周りで全旋回駆動及び固定自
在な旋回台3を設け、この旋回台3に油圧式ブームシリ
ンダー4と油圧式アームシリンダー5により横軸芯周り
で上下揺動及び屈伸自在で、かつ、油圧式スウィングシ
リンダー6により縦軸芯13周りで揺動及び固定自在な
、ブーム部分7aとアーム部分7bからなる作業用アー
ム7を設け、このアーム7の先端に油圧式チルトシリン
ダー8とリンク機構9により横軸周りで上下揺動及び固
定自在なバケツ)10を装着し、旋回台3及びアーム7
の車体に対する縦軸芯周りでの固定角を設定することに
より、側溝掘りができるようにすると共に、車体から延
出した油圧リフトシリンダー23により上下揺動自在な
アーム24の先端に排土板25を装着して排上作業がで
きるようにした掘削作業車を構成しである。A swivel base 3 is provided on a vehicle body equipped with a crawler-type traveling device 1, which can be fully rotated and fixed around the vertical axis by a hydraulic motor 2 and a slewing race 22, and this swivel base 3 is equipped with a hydraulic boom cylinder 4 and a hydraulic arm. A working arm 7 consisting of a boom portion 7a and an arm portion 7b, which can swing up and down and bend and extend around a horizontal axis by a cylinder 5, and can swing and fix around a vertical axis 13 by a hydraulic swing cylinder 6. A bucket) 10, which can be vertically swung and fixed around a horizontal axis, is attached to the tip of the arm 7 using a hydraulic tilt cylinder 8 and a link mechanism 9.
By setting a fixed angle around the vertical axis relative to the vehicle body, it is possible to dig side ditches, and a soil removal plate 25 is attached to the tip of an arm 24 that can swing vertically by a hydraulic lift cylinder 23 extending from the vehicle body. This is an excavation work vehicle that is equipped with a
前記作業用アーム7を旋回台3に対して縦軸芯周りで揺
動自在とするに、前記ブーム部分7aの基端部を横軸1
2を介して枢支連結したブームブラケット11が旋回台
3と該旋回台3からの立設ブラケット26とに挿通した
縦軸芯13を介して枢支連結し、もってこの構造部分の
強度を大にしている。In order to make the working arm 7 swingable around the vertical axis with respect to the swivel base 3, the base end of the boom portion 7a is aligned with the horizontal axis 1.
A boom bracket 11 is pivotally connected to the swivel base 3 and an upright bracket 26 from the swivel base 3 via a vertical axis 13 inserted through the swivel base 3, thereby increasing the strength of this structural part. I have to.
前記スウィングシリンダー6を架設するに、作業用アー
ム側においては、先端側ボス14を前記ブームブラケッ
ト11に付設の2個の軸受ブラケット15.15に挿通
係止した縦軸支軸16により支持し、旋回台側において
は、基端側ボス18を旋回台3に直接連結した軸受部2
0と旋回台3からの立設ブラケット26に付設の軸受ブ
ラケット17とに挿通した縦軸支軸19とにより支持す
るように構成し、もって、旋回台3操作時にシリンダー
6に作用する力を、本来強度大なる旋回台3によって受
止めさせて、シリンダー6基端側の支持構造の簡略化と
コストダウンを図れるように構成されている。To erect the swing cylinder 6, on the working arm side, the distal end boss 14 is supported by a vertical support shaft 16 that is inserted through and locked into two bearing brackets 15 and 15 attached to the boom bracket 11. On the swivel base side, a bearing portion 2 that directly connects the proximal boss 18 to the swivel base 3
0 and a vertical shaft support shaft 19 inserted through a bearing bracket 17 attached to an upright bracket 26 from the swivel base 3, thereby reducing the force acting on the cylinder 6 when the swivel base 3 is operated. It is configured so that it is received by the swivel table 3, which is inherently strong, so that the support structure on the base end side of the cylinder 6 can be simplified and costs can be reduced.
図中21は、軸受ブラケット17に対する補強用ノブで
あって、軸受ブラケット17と旋回台3の間に設けられ
ている。In the figure, reference numeral 21 denotes a reinforcing knob for the bearing bracket 17, which is provided between the bearing bracket 17 and the swivel base 3.
尚、スウィングシリンダー6としては、油圧式の他、空
気圧式等各種のシリンダーを採用しても良いのであり、
これらを流体圧式シリンダー6と総称する。In addition, as the swing cylinder 6, various types of cylinders such as a pneumatic type as well as a hydraulic type may be used.
These are collectively referred to as a fluid pressure cylinder 6.
シリンダー6の基端側に対するブラケット17を、アー
ム7取付用ブラケツト26に連結せずに旋回台3のみに
取付けてもよい。The bracket 17 for the base end side of the cylinder 6 may be attached only to the swivel base 3 without being connected to the arm 7 attachment bracket 26.
要するに、本考案における掘削作業用アーム駆動装置の
取付構造は、冒頭に記載した掘削作業車において前記縦
軸芯は旋回台と該旋回台からの立設ブラケットとにより
支持させてあり、かつ、前記流体圧シリンダーの基端側
軸支軸は、前記旋回台に直接連結された軸受部と、前記
旋回台に直接取付けるか或いは前記旋回台からの立設ブ
ラケットに付設した軸受ブラケットとにより取付けであ
る事を特徴とする。In short, the mounting structure of the arm driving device for excavation work according to the present invention is such that in the excavation work vehicle described at the beginning, the vertical axis is supported by a swivel base and an erected bracket from the swivel base, and The base end side pivot shaft of the fluid pressure cylinder is attached by a bearing portion directly connected to the swivel base and a bearing bracket that is either directly attached to the swivel base or attached to an erected bracket from the swivel base. characterized by things.
つまり、流体圧シリンダーの基端側軸支軸を旋回台に直
接連結の軸受部と軸受ブラケットとにより支持させ、か
つ、作業用アーム揺動の縦軸芯もこの旋回台と立設7ラ
ケツトとにより支持させて、シリンダーに作用する力及
びアームの揺動に対しては、機能上旋回台が本来有する
強度で対処できるようにしであるので、変形や破損の無
い状態で掘削作業用アーム駆動装置を取付けることがで
き、その上、支持構造を構造簡単、かつ、安価なものに
できるに至った。In other words, the base end side shaft of the fluid pressure cylinder is supported by a bearing part and a bearing bracket that are directly connected to the swivel table, and the vertical axis of the working arm swing is also connected to the swivel table and the seven vertical rackets. The arm drive device for excavation work can be installed without deformation or damage, since the force acting on the cylinder and the swinging of the arm can be dealt with with the inherent strength of the swivel table. In addition, the supporting structure can be made simple and inexpensive.
図面は本考案に係る掘削作業車における掘削作業用アー
ム駆動装置の取付構造の実施例を示し、第1図は作業車
の全体側面図、第2図は要部を示す側面図、第3図は要
部を示す平面図である。
3・・・・・・旋回台、6・・・・・・流体圧シリンダ
ー、7・・・・・・作業用アーム、13・・・・・・縦
軸芯、17・・・・・・軸受ブラケット、19・・・・
・・基端側軸支軸、20・・・・・・軸受部、26・・
・・・・立設ブラケット。The drawings show an embodiment of the mounting structure of the excavation work arm drive device in the excavation work vehicle according to the present invention, FIG. 1 is an overall side view of the work vehicle, FIG. 2 is a side view showing the main parts, and FIG. 3 FIG. 2 is a plan view showing main parts. 3...Swivel base, 6...Fluid pressure cylinder, 7...Work arm, 13...Vertical axis, 17... Bearing bracket, 19...
... Proximal side shaft support shaft, 20 ... Bearing part, 26 ...
...Standing bracket.
Claims (1)
旋回台3に、上下揺動及び屈伸自在な掘削作業用アーム
7を縦軸芯13周りで流体圧シリンダー6により揺動及
び固定自在に設けた掘削作業車であって前記縦軸芯13
は旋回台3と該旋回台3からの立設ブラケット26とに
より支持させてあり、かつ、前記流体圧シリンダー6の
基端側軸支軸19は、前記旋回台3に直接連結された軸
受部20と、前記旋回台3に直接取付けるか或いは前記
旋回台3からの立設ブラケット26に付設した軸受ブラ
ケット17とにより支持させである事を特徴とする掘削
作業車における掘削作業用アーム駆動装置の取付構造。An excavation work arm 7 that can swing up and down and bend freely is swung and fixed around a vertical axis 13 by a hydraulic cylinder 6 on a swivel table 3 that is installed on the vehicle body so that it can be driven, rotated, and fixed around a vertical axis. The excavation work vehicle is freely provided with the vertical axis center 13
is supported by the swivel base 3 and an erected bracket 26 from the swivel base 3, and the base end side shaft support shaft 19 of the fluid pressure cylinder 6 is a bearing portion directly connected to the swivel base 3. 20, and a bearing bracket 17 that is directly attached to the swivel base 3 or attached to an upright bracket 26 from the swivel base 3. Mounting structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977031898U JPS5830848Y2 (en) | 1977-03-15 | 1977-03-15 | Mounting structure of arm drive device for excavation work on excavation work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977031898U JPS5830848Y2 (en) | 1977-03-15 | 1977-03-15 | Mounting structure of arm drive device for excavation work on excavation work vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53125403U JPS53125403U (en) | 1978-10-05 |
JPS5830848Y2 true JPS5830848Y2 (en) | 1983-07-07 |
Family
ID=28884365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1977031898U Expired JPS5830848Y2 (en) | 1977-03-15 | 1977-03-15 | Mounting structure of arm drive device for excavation work on excavation work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5830848Y2 (en) |
-
1977
- 1977-03-15 JP JP1977031898U patent/JPS5830848Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS53125403U (en) | 1978-10-05 |
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