JPH0647975Y2 - Backhoe rotary joint mounting structure - Google Patents
Backhoe rotary joint mounting structureInfo
- Publication number
- JPH0647975Y2 JPH0647975Y2 JP1987086026U JP8602687U JPH0647975Y2 JP H0647975 Y2 JPH0647975 Y2 JP H0647975Y2 JP 1987086026 U JP1987086026 U JP 1987086026U JP 8602687 U JP8602687 U JP 8602687U JP H0647975 Y2 JPH0647975 Y2 JP H0647975Y2
- Authority
- JP
- Japan
- Prior art keywords
- mounting
- rotary joint
- backhoe
- piping
- frame
- 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 - Lifetime
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、走行機台に取付けた旋回フレームに、それら
両者間での油圧配管接続用のロータリジョイントの胴本
体を載置固定してあるバックホウのロータリジョイント
取付構造に関する。[Detailed Description of the Invention] [Industrial field of application] In the present invention, a body of a rotary joint for connecting hydraulic pipes between them is fixedly mounted on a swing frame mounted on a traveling platform. The present invention relates to a rotary joint mounting structure for a backhoe.
従来のバックホウのロータリジョイント取付構造では、
第4図に示すように、前記ロータリジョイント(14)が
その胴本体(14A)の下面で旋回フレーム(2)に載置
される状態で取付けられていた(文献を示すことができ
ない)。In the conventional backhoe rotary joint mounting structure,
As shown in FIG. 4, the rotary joint (14) was mounted on the revolving frame (2) on the lower surface of the barrel body (14A) (the literature cannot be shown).
しかし、前記従来の取付構造では、ロータリジョイント
の胴本体の全体が旋回フレーム上から突出することにな
るため、特に前記胴本体の外周面の配管ポートの数が多
い場合、旋回フレーム上のロータリジョイント用の接地
スペースとして上下方向に大きなものが必要となる。こ
のことは、ロータリジョイントが丁度、運転座席の足元
部に位置するレイアウトの小型のバックホウの場合、足
元部を著しく狭くし、居住性を悪化させるのである。However, in the conventional mounting structure, the entire body of the rotary joint protrudes from the revolving frame. Therefore, especially when the number of piping ports on the outer peripheral surface of the body is large, the rotary joint on the revolving frame is large. A large vertical space is required for the grounding space. This means that in the case of a small backhoe having a layout in which the rotary joint is located just at the foot of the driver's seat, the foot is remarkably narrowed and the habitability is deteriorated.
本考案の目的は、ロータリジョイントの胴本体の配管ポ
ート数が多くても、ロータリジョイントの旋回フレーム
上からの突出量を極力、少なくできるようにすると共
に、そのことによって生じる新たな問題点をも上手く解
決せんとする点にある。The object of the present invention is to make it possible to minimize the amount of protrusion of the rotary joint from the swivel frame even if the number of piping ports of the body of the rotary joint is large, and also to cause new problems. There is a point to solve it well.
本考案によるバックホウのロータリジョイント取付構造
の特徴構成は、前記旋回フレームに、前記ロータリジョ
イントの下半部側を挿入可能な取付孔を形成し、前記胴
本体の上下中間部に、前記旋回フレームへの載置取付座
を胴本体の周方向において所定範囲に亘って配置し、前
記載置取付座よりも上方および下方の両部分それぞれ
に、前記胴本体の外周面の配管ポートを、前記周方向で
前記載置取付座が存在する前記所定範囲を除いた範囲に
まとめて配置した点にあり、それによる作用・効果は次
の通りである。The characteristic structure of the rotary joint mounting structure of the backhoe according to the present invention is that a mounting hole into which the lower half part of the rotary joint can be inserted is formed in the swivel frame, and the swivel frame is connected to the swivel frame at an upper and lower intermediate part. Of the mounting body is arranged over a predetermined range in the circumferential direction of the body, and the pipe ports on the outer peripheral surface of the body are provided in both the upper and lower portions of the mounting body in the circumferential direction. In the above, there is a point where they are collectively arranged in a range excluding the above-mentioned predetermined range where the above-mentioned mounting base is present, and the operation and effect thereof are as follows.
胴本体の上下中間部に旋回フレームへの載置取付座を配
置し、かつ、その胴本体の外周面の配管ポートを、旋回
フレームよりも上方の箇所のみならず、下方の箇所にも
配置してあるため、胴本体のうち載置取付座よりも下方
に位置する配管ポート付きの部分の高さ分だけ、胴本体
の旋回フレームから上方に突出する量を少なくして、前
記配管ポートの数の割には、旋回フレーム上のロータリ
ジョイント用の設置スペースとして上下方向で小さなも
ので済む。Place a mounting mounting seat on the revolving frame in the middle of the upper and lower parts of the body, and arrange the piping ports on the outer peripheral surface of the body not only above the revolving frame but also below it. Therefore, the amount of protrusion above the swing frame of the trunk body is reduced by the height of the portion of the trunk body with the piping port located below the mounting seat to reduce the number of piping ports. For this reason, a small installation space for the rotary joint on the revolving frame is required in the vertical direction.
そして、前記載置取付座を胴本体の周方向において所定
範囲に亘って偏り配置し、かつ、配管ポートを平面視で
前記載置取付座の無い部分にまとめて配置してあるた
め、前記のように、前記配管ポートのうちの一部のもの
を載置取付座よりも下方に配置させながらも、つまり、
旋回フレーム下に位置させながらも、その下方に位置す
る配管ポートへの配管の接続作業を、前記の載置取付座
で邪魔されることなく、容易に行なえる。Then, the placement mounting seats are arranged in a biased manner over a predetermined range in the circumferential direction of the trunk body, and the piping ports are collectively arranged in a portion without the placement mounting seats in plan view. As described above, while arranging a part of the piping ports below the mounting mounting seat, that is,
Even though it is located below the swivel frame, the work of connecting the pipe to the pipe port located below the swivel frame can be easily performed without being hindered by the mounting mount.
しかも、載置取付座よりも径方向に大きく突出する配管
ポートを載置取付座の無い部分にまとめて配置してある
ため、例えば、載置取付座と配管ポートとを周方向に交
互に分散配置する場合に比して、旋回フレームに形成す
るロータリジョイント取付孔を小さくすることができ、
ロータリジョイントを旋回フレームに落とし込み形式を
採用する場合に生じる新たな問題点である旋回フレーム
の強度低下を抑制することができる。Moreover, since the piping ports that project more largely in the radial direction than the mounting mounting seats are collectively arranged in the part where there is no mounting mounting seat, for example, the mounting mounting seats and the piping ports are alternately dispersed in the circumferential direction. The rotary joint mounting hole formed in the revolving frame can be made smaller than when arranged,
It is possible to suppress a decrease in strength of the revolving frame, which is a new problem that occurs when the rotary joint is dropped into the revolving frame.
その結果、本考案は、配管ポートへの配管接続の作業性
を良好に維持しながらも、配管ポートの数の割には設置
スペースが上下方向で小さくて済み、ロータリジョイン
トが運転座席の足元部に位置する小型のバックホウに適
用した場合には、居住性を改善できるバックホウのロー
タリジョイント取付構造を提供できるようになった。As a result, the present invention, while maintaining good workability of piping connection to the piping port, requires a small installation space in the vertical direction for the number of piping ports, and the rotary joint has the foot part of the driver's seat. When it is applied to a small backhoe located at, it is possible to provide a rotary joint mounting structure for a backhoe that can improve comfortability.
しかも、ロータリジョイントを旋回フレームに落とし込
む形式を採用する場合に生じる新たな問題点である旋回
フレームの強度低下も抑制することができる。In addition, it is possible to suppress a decrease in strength of the revolving frame, which is a new problem that occurs when the rotary joint is dropped into the revolving frame.
次に本考案の実施例を示す。 Next, an embodiment of the present invention will be shown.
第3図に示すように、油圧駆動型クローラ式の走行機台
(1)に、油圧モータで駆動される旋回フレーム(2)
と油圧シリンダ(3)で駆動されるドーザ(4)とを取
付け、この旋回フレーム(2)に、油圧シリンダ(5)
で駆動されるブーム(6)とエンジン(7)に運転座席
(8)を設け、前記ブーム(6)に油圧シリンダ(9)
で駆動されるアーム(10)を、かつ、このアーム(10)
に油圧シリンダ(11)で駆動されるバケット(12)を夫
々取付けて、バックホウを構成する。As shown in FIG. 3, a hydraulically driven crawler type traveling platform (1) has a swing frame (2) driven by a hydraulic motor.
And a dozer (4) driven by a hydraulic cylinder (3) are attached, and a hydraulic cylinder (5) is attached to the swing frame (2).
A boom (6) driven by a motor and an engine (7) are provided with a driver seat (8), and the boom (6) is provided with a hydraulic cylinder (9).
An arm (10) driven by, and this arm (10)
A bucket (12) driven by a hydraulic cylinder (11) is attached to each to form a backhoe.
かつ、前記旋回フレーム(2)における運転座席(8)
の足元部には、前記旋回フレーム(2)側の油圧供給装
置と走行機台(1)側の走行用油圧系、ドーザ用油圧シ
リンダ(3)との間での油圧配管接続用のロータリジョ
イント(14)が、その軸芯を旋回フレーム(2)の旋回
軸芯と一致させる状態で、かつ、旋回フレーム(2)を
上下に貫通する状態に取付けられており、その取付構造
は次の通りである。And the driver's seat (8) in the swing frame (2)
At the foot of the, a rotary joint for hydraulic pipe connection between the hydraulic supply device on the revolving frame (2) side, the traveling hydraulic system on the traveling platform (1) side, and the hydraulic cylinder (3) for the dozer. (14) is attached with its axis aligned with the axis of the swing frame (2) and vertically through the swing frame (2). The mounting structure is as follows. Is.
第1図及び第2図に示すように、前記ロータリジョイン
ト(14)のうち、前記走行機台(1)側の油圧配管に対
する配管ポート(14d)を備えた軸体(14B)を回転自在
に内嵌保持する胴本体(14A)の上下中間部で、かつ、
胴本体(14A)の周方向において偏った周部分に、前記
旋回フレーム(2)へのボルト(15)による載置取付座
(14a)の複数個を周方向に分散させて配置するととも
に、これら載置取付座(14a)よりも上方および下方の
両部分それぞれに、前記胴本体(14A)の外周面の配管
ポート(14b),(14c)を、平面視で前記載置取付座
(14a)どうしの間隔が最大となる箇所、つまり、載置
取付座(14a)を分散配置する周部分とは異なる周部分
に位置する状態に配置し、前記載置取付部(14a)を旋
回フレーム(2)側の載置取付座(2A)に載置固定する
ように構成されている。As shown in FIGS. 1 and 2, of the rotary joint (14), the shaft body (14B) provided with the piping port (14d) for the hydraulic piping on the traveling platform (1) side is rotatable. In the upper and lower intermediate parts of the body (14A) that holds the internal fitting, and
A plurality of mounting mounting seats (14a) by bolts (15) to the swivel frame (2) are arranged in a circumferentially deviated circumferential portion of the trunk body (14A) in a circumferentially dispersed manner. The piping ports (14b) and (14c) on the outer peripheral surface of the trunk body (14A) are respectively arranged above and below the mounting mounting seat (14a) in plan view as the mounting mounting seat (14a). The placement mounting seats (14a) are arranged at a position where the space between them is maximized, that is, in a peripheral portion different from the circumferential portion where the mounting mounting seats (14a) are distributed, and the mounting mounting portion (14a) is rotated to the swivel frame (2). ) Side mounting mount (2A).
前記旋回フレーム(2)側の載置取付座(2A)は、ロー
タリジョイント(14)の取付孔であるところの貫通孔
(2B)の周縁部のうち、胴本体(14A)の配管ポート配
置用周部に対応する部分が切欠かれた形状に形成されて
いる。The mounting mounting seat (2A) on the side of the revolving frame (2) is for arranging the piping port of the body (14A) in the peripheral portion of the through hole (2B) which is the mounting hole of the rotary joint (14). A portion corresponding to the peripheral portion is formed in a notched shape.
また、前記配管ポート(14b),(14c)は、前記胴本体
(14A)における配管ポート配置用周部の周方向での中
央線を中心として周方向に振分けられており、かつ、配
管ポート(14b),(14c)のうち、載置取付座(14a)
より下方に位置する配管ポート(14c)は、上方に位置
する配管ポート(14b)に対して前記振分け中心から遠
ざかる方向に設定間隔(d)を隔てた箇所に配置されて
いる。つまり、上方の配管ポート(14b)脇のうち振分
け中心とは反対側の脇を通して下方の配管ポート(14
c)に配管を接続する際、その配管を、上方の配置ポー
ト(14b)に邪魔されること少なく容易に行なえるよう
になっている。Further, the piping ports (14b), (14c) are distributed in the circumferential direction around the center line in the circumferential direction of the circumferential portion for arranging the piping ports in the trunk body (14A), and Mounting mounting seat (14a) of 14b) and (14c)
The lower piping port (14c) is arranged at a position spaced from the upper piping port (14b) by a set distance (d) in a direction away from the distribution center. That is, of the upper piping port (14b) side, the side opposite to the distribution center is passed and the lower piping port (14b)
When connecting a pipe to c), the pipe can be easily carried out without being obstructed by the upper arrangement port (14b).
尚、実用新案登録請求の範囲の項に図面との対称を便利
する為に符号を記すが、該記入により本考案は添付図面
の構造に限定されるものではない。In the claims of the utility model, reference numerals are given for convenience of symmetry with the drawings, but the present invention is not limited to the structures shown in the accompanying drawings by the entry.
第1図乃至第3図は本考案に係るバックホウのロータリ
ジョイント取付構造の実施例を示し、第1図は要部の側
面図、第2図は第1図におけるII−II線断面図、第3図
は全体側面図であり、第4図は従来例を示す要部の側面
図である。 (1)……走行機台、(2)……旋回フレーム、(2B)
……取付孔、(14)……ロータリジョイント、(14A)
……胴本体、(14a)……載置取付座、(14b)……配管
ポート。FIGS. 1 to 3 show an embodiment of a rotary joint mounting structure for a backhoe according to the present invention, FIG. 1 is a side view of an essential part, FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a side view of the whole, and FIG. 4 is a side view of essential parts showing a conventional example. (1) …… Traffic platform, (2) …… Swivel frame, (2B)
…… Mounting hole, (14) …… Rotary joint, (14A)
…… Cylinder body, (14a) …… Mounting mounting seat, (14b) …… Piping port.
Claims (1)
(2)に、それら両者間での油圧配管接続用のロータリ
ジョイント(14)の胴本体(14A)を載置固定してある
バックホウのロータリジョイント取付構造であって、前
記旋回フレーム(2)に、前記ロータリジョイント(1
4)の下半部側を挿入可能な取付孔(2B)を形成し、前
記胴本体(14A)の上下中間部に、前記旋回フレーム
(2)への載置取付座(14a)を胴本体(14A)の周方向
において所定範囲に亘って配置し、前記載置取付座(14
a)よりも上方および下方の両部分それぞれに、前記胴
本体(14A)の外周面の配管ポート(14b),(14c)
を、前記周方向で前記載置取付座(14a)が存在する前
記所定範囲を除いた範囲にまとめて配置してあるバック
ホウのロータリジョイント取付構造。A backhoe in which a body (14A) of a rotary joint (14) for connecting hydraulic pipes between them is mounted and fixed on a revolving frame (2) mounted on a traveling platform (1). The rotary joint mounting structure according to claim 1, wherein the rotary joint (1
4) A mounting hole (2B) into which the lower half side can be inserted is formed, and a mounting mounting seat (14a) for mounting on the swivel frame (2) is provided at the upper and lower intermediate portions of the body (14A). (14A) is arranged over a predetermined range in the circumferential direction, and
Piping ports (14b), (14c) on the outer peripheral surface of the trunk body (14A) on both upper and lower sides of a).
Are collectively arranged in a range excluding the predetermined range where the mounting seat (14a) is present in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987086026U JPH0647975Y2 (en) | 1987-06-02 | 1987-06-02 | Backhoe rotary joint mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987086026U JPH0647975Y2 (en) | 1987-06-02 | 1987-06-02 | Backhoe rotary joint mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63194958U JPS63194958U (en) | 1988-12-15 |
| JPH0647975Y2 true JPH0647975Y2 (en) | 1994-12-07 |
Family
ID=30941961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987086026U Expired - Lifetime JPH0647975Y2 (en) | 1987-06-02 | 1987-06-02 | Backhoe rotary joint mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647975Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008202364A (en) * | 2007-02-22 | 2008-09-04 | Kobelco Contstruction Machinery Ltd | Construction machine swivel joint |
| KR20230000127U (en) * | 2021-07-07 | 2023-01-16 | 주식회사 모트롤 | Swing reduction for heavy equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135966U (en) * | 1984-08-04 | 1986-03-05 | セイレイ工業株式会社 | Swivel joint mounting structure for power working equipment |
-
1987
- 1987-06-02 JP JP1987086026U patent/JPH0647975Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008202364A (en) * | 2007-02-22 | 2008-09-04 | Kobelco Contstruction Machinery Ltd | Construction machine swivel joint |
| KR20230000127U (en) * | 2021-07-07 | 2023-01-16 | 주식회사 모트롤 | Swing reduction for heavy equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63194958U (en) | 1988-12-15 |
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