JP5608571B2 - Pressure fluid supply pipe support device for excavation work rod - Google Patents
Pressure fluid supply pipe support device for excavation work rod Download PDFInfo
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本発明は、油圧、水圧等の圧力流体により駆動される拡大掘削刃、回転掘削翼等の掘削作業具をロッド下端に備える掘削作業ロッドにおいて、圧力流体をロッド下端の掘削作業具に供給するための圧力流体供給管をロッドの軸心に安全に支持する装置に関する。 The present invention relates to an excavation work rod having an excavation work tool such as an enlarged excavation blade and a rotary excavation blade driven by a pressure fluid such as hydraulic pressure or hydraulic pressure at the lower end of the rod, for supplying the pressure fluid to the excavation work tool at the lower end of the rod. The present invention relates to an apparatus for safely supporting the pressure fluid supply pipe of the rod on the axis of the rod.
従来、例えば、ロッドの下端部外側に拡大掘削刃を拡縮揺動自在に取りつけると共に、ロッド下端部内に、上記拡大掘削刃を拡縮揺動させる油圧シリンダを内装した球根造成用の拡大掘削ロッドにおいて、地上の油圧装置から圧力油を上記ロッド下端の油圧シリンダまで供給する管を、定尺ロッドの軸心に縦通すると共に、該供給管端部を上記定尺ロッドのオス、メス継手端部内まで延長し、該供給管の延長端部をホルダーによって上記オス、メス継手内周面に固定した供給管支持構造が一般に使用されている。 Conventionally, for example, in an expansion excavation rod for bulb creation that attaches an expansion excavation blade to the outside of the lower end portion of the rod so as to be able to expand and contract, and incorporates a hydraulic cylinder that expands and contracts the expansion excavation blade in the rod lower end portion. A pipe for supplying pressure oil from the ground hydraulic device to the hydraulic cylinder at the lower end of the rod passes vertically through the axis of the fixed rod, and the supply pipe end extends to the male and female joint ends of the fixed rod. In general, a supply pipe support structure is used in which the extension end of the supply pipe is fixed to the inner peripheral surface of the male and female joints by a holder.
しかし、各種掘削作業ロッドにおいて、一定長の定尺ロッドを順次継ぎ足して長尺ロッドに形成する場合、その接続には、六角軸のオス継手と、六角筒のメス継手との差し合わせを使用し、しかも、オス継手とメス継手との差し合わせ及び引き抜き作業を現場で速やかに且つ容易に遂行できるようにするため、一般にオス継手とメス継手の対応部分の寸法に若干のクリアランスを予め設けているのである。 However, in various excavation work rods, when a fixed length of a fixed length rod is sequentially added to form a long length rod, a hexagonal male joint and a hexagonal cylinder female joint are used for the connection. In addition, in order to be able to quickly and easily perform the mating and drawing operations between the male joint and the female joint at the site, generally a slight clearance is provided in advance in the dimensions of the corresponding parts of the male joint and the female joint. It is.
そのため、定尺ロッドを継ぎ足してなる長尺掘削ロッドが回転した時及び回転を停止した時に、上記オス継手とメス継手間のクリアランスが起因となって継手部分にガタ、振動等を生起させ、これがロッド内側の油圧供給管、特に供給管端部を固定するホルダー部分に打撃を与え、時にはホルダーや供給管に損傷を与える欠点があった。 Therefore, when the long excavation rod that is added to the fixed rod rotates and stops rotating, the clearance between the male joint and the female joint causes play, vibration, etc. occur in the joint. The hydraulic supply pipe inside the rod, particularly the holder part for fixing the end of the supply pipe, is hit, and sometimes the holder and the supply pipe are damaged.
本発明は、掘削作業ロッドの回転及び停止時にガタや振動が発生しても、ロッド内部に縦通された圧力流体供給管を安全確実に支持することができる圧力流体供給管支持装置を提供することを課題とする。 The present invention provides a pressure fluid supply pipe support device that can safely and reliably support a pressure fluid supply pipe vertically passed through a rod even when play or vibration occurs when the excavation work rod rotates and stops. This is the issue.
上記課題解決の手段として、本発明は、
中空ロッド内に圧力流体供給管を縦通し、
上記圧力流体供給管の端部に、円形輪を形成し、
上記ロッドの端部内周面に、上記円形輪を回転自在に支承する円筒支承面を形成し、
上記円形輪と上記円筒支承面との回転摺動面に、上記円形輪周面及び円筒支承面に食いこみ且つ該回転摺動面母線方向に延長する少くとも１本のピン孔を形成し、該ピン孔に弾性材からなるピンを挿入した、
掘削作業ロッドの圧力流体供給管支持装置を提案する。
As means for solving the above problems, the present invention provides:
Pass the pressure fluid supply pipe vertically through the hollow rod,
A circular ring is formed at the end of the pressure fluid supply pipe,
A cylindrical bearing surface for rotatably supporting the circular ring is formed on the inner peripheral surface of the end of the rod,
Forming at least one pin hole in the rotational sliding surface between the circular ring and the cylindrical bearing surface, which bites into the circular ring circumferential surface and the cylindrical bearing surface and extends in the direction of the rotational sliding surface generatrix, A pin made of an elastic material was inserted into the pin hole,
A pressure fluid supply pipe support device for excavation work rod is proposed.
本発明の掘削作業ロッドの圧力流体供給管支持装置によれば、圧力流体供給管がロッドから受ける回転方向の外力を弾性ピンにより緩衝することができるから、掘削作業ロッドの回転及び停止時にガタや振動が発生した時それらのガタや振動を弾性ピンにて緩衝して供給管に損傷が及ぶ危険を防止することができるのである。 According to the pressure fluid supply pipe support device for excavation work rod of the present invention, the external force in the rotational direction received by the pressure fluid supply pipe from the rod can be buffered by the elastic pin. When vibrations occur, they can be buffered by an elastic pin to prevent the supply pipe from being damaged.
本発明における上記「圧力流体供給管」は、油圧シリンダ等の圧力流体駆動手段に圧力流体を給送する管のみ、又は上記圧力流体給送管と、圧力流体駆動手段から圧力流体をタンクに戻す排送管の両管を含む場合もある。
又、上記「弾性材からなるピン」は、１本に限らず、２本、３本、４本と複数本設けることもある。
本発明は、中空ロッド（２）内に圧力流体供給管（６）を縦通し、上記圧力流体供給管（６）の端部に、円形輪（１１）を形成し、上記ロッド（２）の端部内周面に、上記円形輪（１１）を回転自在に支承する円筒支承面（１２）を形成し、上記円形輪（１１）と上記円筒支承面（１２）との回転摺動面に、上記円形輪周面及び円筒支承面に食いこみ且つ該回転摺動面母線方向に延長する少くとも１本のピン孔（１３Ａ）を形成し、該ピン孔（１３Ａ）に弾性材からなるピン（１３）を挿入した、掘削作業ロッドの圧力流体供給管支持装置を基本とする。
In the present invention, the “pressure fluid supply pipe” refers to only a pipe that supplies pressure fluid to the pressure fluid drive means such as a hydraulic cylinder, or the pressure fluid supply pipe and the pressure fluid drive means to return the pressure fluid to the tank. In some cases, both pipes are included.
Further, the “pin made of an elastic material” is not limited to one, but may be two, three, four, or a plurality.
In the present invention, the pressure fluid supply pipe (6) is vertically passed through the hollow rod (2), a circular ring (11) is formed at the end of the pressure fluid supply pipe (6), and the rod (2) A cylindrical bearing surface (12) for rotatably supporting the circular ring (11) is formed on the inner peripheral surface of the end, and a rotational sliding surface between the circular ring (11) and the cylindrical bearing surface (12) At least one pin hole (13A) that bites into the circular ring peripheral surface and the cylindrical bearing surface and extends in the direction of the rotational sliding surface generatrix is formed, and a pin (13A) made of an elastic material ( The pressure fluid supply pipe support device for the excavation work rod into which 13) is inserted is basically used.
図１は、下端に拡大掘削刃及び該拡大掘削刃を拡縮揺動させるべき油圧シリンダを備える拡大掘削ロッドを構成するための定尺ロッド（１）である。 FIG. 1 is a fixed rod (1) for constituting an enlarged excavating rod having an enlarged excavating blade and a hydraulic cylinder to which the enlarged excavating blade is to be expanded and contracted at the lower end.
上記定尺ロッド（１）は、軸心部に通孔（３）を縦通した中空ロッド本体（２）の一端部分を六角軸からなるオス継手（４）に、他端部分を、上記オス継手（４）と嵌脱自在の六角筒からなるメス継手（５）にそれぞれ形成してあり、この定尺ロッドの通孔（３）内に圧力油供給管（６）を挿通した状態で、本発明による支持装置により該圧力油供給管（６）を支持してある。（７）、（７）は、上記オス、メス継手（４）、（５）の嵌合平面部に貫設された抜け止めピン用のピン孔である。 The fixed rod (1) has one end portion of a hollow rod body (2) vertically passing through a through hole (3) in an axial center portion as a male joint (4) composed of a hexagonal shaft, and the other end portion as the male portion. The joint (4) and the female joint (5) consisting of a detachable hexagonal cylinder are formed respectively, and with the pressure oil supply pipe (6) inserted into the through hole (3) of this fixed rod, The pressure oil supply pipe (6) is supported by the support device according to the present invention. (7), (7) is a pin hole for a retaining pin penetrating through the fitting flat portion of the male and female joints (4), (5).
上記圧力油供給管（６）は、厚手の金属長板（８）内部に、圧力油給送路（９）及び圧力油排送路（１０）を長手方向に沿って平行に縦通したもので、該供給管（６）の一端部外側に円形輪（１１）を外側フランジ状に突設し、一方、ロッド本体（２）の本例ではオス継手（４）がわの通孔（３）端部に、円筒支承面（１２）を形成し、該円筒支承面（１２）に、上記圧力油供給管（６）の円形輪（１１）を回転自在に支承させると共に、上記円形輪（１１）と円筒支承面（１２）の回転摺動面に、上記円形輪外周面及び円筒支承面内周面にそれぞれ食いこみ且つ該回転摺動面の母線方向に延長する２本のピン丸孔（１３Ａ）を互に直径方向相対する位置に開設し、これらピン孔に、合成ゴム等の弾性材からなる弾性丸ピン（１３）、（１３）を嵌入してある。 The pressure oil supply pipe (6) is formed by vertically passing a pressure oil supply path (9) and a pressure oil discharge path (10) in parallel along the longitudinal direction inside a thick metal long plate (8). Thus, a circular ring (11) is projected in the form of an outer flange on the outer side of one end of the supply pipe (6). On the other hand, in this example of the rod main body (2), the male joint (4) has a through hole (3 ) A cylindrical bearing surface (12) is formed at the end, and the circular ring (11) of the pressure oil supply pipe (6) is rotatably supported on the cylindrical bearing surface (12). 11) and two pin round holes that bite into the outer peripheral surface of the circular ring and the inner peripheral surface of the cylindrical bearing surface and extend in the generatrix direction of the rotary sliding surface on the rotational sliding surface of the cylindrical bearing surface (12) (13A) is opened at positions opposite to each other in the diametrical direction, and in these pin holes, elastic round pins (13) made of an elastic material such as synthetic rubber (13), (13 The are fitted.
（１４）、（１４）は、上記弾性丸ピン押え、（１５）、（１５）は、上記給送路（９）及び排送路（１０）の円形輪（１１）がわ開口端に設けたゴムリングつきソケットである（図３）。（１６）、（１６）は、上記給送路（９）及び排送路（１０）のメス継手（５）がわ開口端に突設したプラグである（図１）。 (14) and (14) are the elastic round pin holders, and (15) and (15) are the circular rings (11) of the feeding path (9) and the discharging path (10) provided at the end of the opening. A socket with a rubber ring (FIG. 3). (16) and (16) are plugs in which the female joint (5) of the feeding path (9) and the discharging path (10) protrudes from the opening end of the gap (FIG. 1).
上例の作用を操作とともに次に説明する。先行の定尺ロッド（１）のメス継手（５）に新たな定尺ロッド（１）のオス継手（４）を嵌入しつつ、先行の定尺ロッド（１）の圧力油供給管（６）のプラグ（１６）、（１６）に、新たな定尺ロッドの圧力油供給管のソケット（１５）、（１５）を被嵌し、そして上記オス、メス継手（４）、（５）の抜け止めピン孔（７）、（７）にピンを打ちこみ、以下同様の継ぎ足し作業により必要本数の定尺ロッド（１）…を継ぎ足して長尺ロッドとし、これを回転させて所期の回転掘削を行う。 The operation of the above example will be described next together with the operation. While inserting the new male joint (4) of the standard rod (1) into the female joint (5) of the previous standard rod (1), the pressure oil supply pipe (6) of the previous standard rod (1) Insert the sockets (15), (15) of the pressure oil supply pipe of the new standard rod into the plugs (16), (16) of the above, and remove the male and female joints (4), (5). Insert a pin into the retaining pin holes (7) and (7), and add the required number of rods (1) through the same addition work to make a long rod, which is rotated to perform the desired rotary excavation. Do.
上記長尺ロッドの回転時及び回転の停止時に、各定尺ロッド（１）、（１）、…の継ぎ足し部のオス、メス継手（４）（５）、…間のクリアランスが起因となって各継手部分にガタ、振動等が発生した場合、これらロッドの回転方向のガタ、振動等を上記弾性ピン（１３）、（１３）により緩衝して、そのまま圧力油供給管（６）…に及ぶことを防止する。 When the long rod rotates and stops rotating, the clearance between the male and female joints (4), (5),... Of the respective length rods (1), (1),. When looseness, vibration, or the like occurs in each joint portion, the looseness, vibration, etc. in the rotation direction of these rods are buffered by the elastic pins (13), (13), and reach the pressure oil supply pipe (6) as it is. To prevent that.
１ 定尺ロッド
２ 中空ロッド本体
１１ 円形輪
１２ 円筒支承面
１３ 弾性ピン
１３Ａ ピン孔
DESCRIPTION OF
Claims (1)
上記圧力流体供給管の端部に、円形輪を形成し、
上記ロッドの端部内周面に、上記円形輪を回転自在に支承する円筒支承面を形成し、
上記円形輪と上記円筒支承面との回転摺動面に、上記円形輪周面及び円筒支承面に食いこみ且つ該回転摺動面母線方向に延長する少くとも１本のピン孔を形成し、該ピン孔に弾性材からなるピンを挿入した、
掘削作業ロッドの圧力流体供給管支持装置。 Pass the pressure fluid supply pipe vertically through the hollow rod,
A circular ring is formed at the end of the pressure fluid supply pipe,
A cylindrical bearing surface for rotatably supporting the circular ring is formed on the inner peripheral surface of the end of the rod,
Forming at least one pin hole in the rotational sliding surface between the circular ring and the cylindrical bearing surface, which bites into the circular ring circumferential surface and the cylindrical bearing surface and extends in the direction of the rotational sliding surface generatrix, A pin made of an elastic material was inserted into the pin hole,
Pressure fluid supply pipe support device for excavation work rod.
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| JP2011002634A JP5608571B2 (en) | 2011-01-11 | 2011-01-11 | Pressure fluid supply pipe support device for excavation work rod |
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| JP2011002634A JP5608571B2 (en) | 2011-01-11 | 2011-01-11 | Pressure fluid supply pipe support device for excavation work rod |
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| JP5608571B2 true JP5608571B2 (en) | 2014-10-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804667A (en) * | 2016-05-10 | 2016-07-27 | 江阴德玛斯特钻具有限公司 | Oil drill rod with built-in oil pipes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103206176A (en) * | 2013-04-19 | 2013-07-17 | 上海工程机械厂有限公司 | Built-in oil pipe drill rod |
| CN109025844A (en) * | 2018-10-09 | 2018-12-18 | 尚贤菊 | The drilling rod connection structure of pile-driving machine |
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| JPS5422724Y2 (en) * | 1975-09-30 | 1979-08-07 | ||
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| JPH06221078A (en) * | 1993-01-25 | 1994-08-09 | Sekiyu Kodan | Tube body supporting structure |
| JP3687027B2 (en) * | 1998-07-23 | 2005-08-24 | 大和基工株式会社 | Joint device for extending excavation work rods |
| JP4247539B2 (en) * | 2004-01-21 | 2009-04-02 | 大和基工株式会社 | Rod member joint device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105804667A (en) * | 2016-05-10 | 2016-07-27 | 江阴德玛斯特钻具有限公司 | Oil drill rod with built-in oil pipes |
| CN105804667B (en) * | 2016-05-10 | 2018-06-29 | 江阴德玛斯特钻具有限公司 | The built-in oil drill rocker of oil pipe |
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