JP3042662B2 - Automatic joining and separating device for earth auger screw shaft - Google Patents
Automatic joining and separating device for earth auger screw shaftInfo
- Publication number
- JP3042662B2 JP3042662B2 JP5259776A JP25977693A JP3042662B2 JP 3042662 B2 JP3042662 B2 JP 3042662B2 JP 5259776 A JP5259776 A JP 5259776A JP 25977693 A JP25977693 A JP 25977693A JP 3042662 B2 JP3042662 B2 JP 3042662B2
- Authority
- JP
- Japan
- Prior art keywords
- camber
- cotter
- hexagonal
- separating device
- earth auger
- 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 - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、アースオーガスクリュ
ーシャフトの自動接合・切離し装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically joining and separating earth auger screw shafts.
【0002】[0002]
【従来の技術】図9に示すアースオーガ機においては、
オーガスクリュー1を回転し、地盤を掘削して地中に挿
入し、スクリュー1の先端部からセメントミルク等の固
化材を吐出して土とミルクとを攪拌し、地中に壁を築造
する。このオーガスクリュー1は、掘削に応じ、連結装
置5の下方及びスクリュー間において継ぎ足して延長す
る。2. Description of the Related Art In an earth auger machine shown in FIG.
The auger screw 1 is rotated, the ground is excavated and inserted into the ground, and a solidified material such as cement milk is discharged from the tip of the screw 1 to agitate the soil and milk, thereby building a wall in the ground. The auger screw 1 is extended under the connecting device 5 and between the screws in accordance with excavation.
【0003】その継ぎ足し部は図10及び図11に示す
ように、通常、上側スクリュー2と下側スクリュー3と
を六角レンチ状の差し込み式が用いられている。そし
て、六角雄部2aと六角雌部3aの接合部に一対のテー
パピン4を打ち込み連結して軸力を伝達している。上記
の軸力を伝達するピンの打ち込み、抜き取り作業は、人
力でしか行うことができないので、オーガスクリューの
接合・切離し作業は危険で作業性が悪く施工効率に影響
を及ぼしていた。As shown in FIG. 10 and FIG. 11, the refill portion is usually of a hexagonal wrench type in which an upper screw 2 and a lower screw 3 are inserted. Then, a pair of tapered pins 4 is driven into and connected to the joint between the hexagonal male portion 2a and the hexagonal female portion 3a to transmit the axial force. Since the above-mentioned driving and pulling-out operations of the pin for transmitting the axial force can be performed only by human power, the operation of joining and separating the auger screws is dangerous, the workability is poor, and the construction efficiency is affected.
【0004】一般に掘削装置において、ロッドを連結す
る技術は広く行われており、例えば実開平4−9978
5号公報には連結のための位置合せを地上から目視によ
って実施できる技術が開示されている。しかしながら、
かかる公知技術は連結することは容易でも切離すことは
困難である。また特開昭61−122391号公報に記
載されている自動連結装置は圧油によりロックおよびア
ンロックを行うので、圧油の非供給時にロック解除のお
それがあり安全上問題がある。さらに特開昭57−19
486号公報に記載されているスクリュージョイントは
回転力をクラッチで伝達するので、部品点数が多く、構
造が複雑となり操作が面倒である。[0004] Generally, in an excavator, a technique of connecting rods is widely used.
No. 5 discloses a technique in which alignment for connection can be performed visually from the ground. However,
Such known techniques are easy to connect but difficult to disconnect. Further, the automatic coupling device described in Japanese Patent Application Laid-Open No. 61-122391 locks and unlocks with pressure oil, so there is a risk of unlocking when no pressure oil is supplied, and there is a safety problem. JP-A-57-19
The screw joint described in Japanese Patent No. 486 transmits torque by a clutch, so that the number of parts is large, the structure is complicated, and the operation is troublesome.
【0005】[0005]
【発明が解決しようとする課題】したがって本発明は、
常時に確実にロックでき、しかも安全で能率よく接合お
よび切離しができるアースオーガスクリューシャフトの
自動接合切離し装置を提供することを目的としている。Accordingly, the present invention provides
It is an object of the present invention to provide an automatic joining and detaching device for an earth auger screw shaft that can be securely locked at all times and that can be joined and detached safely and efficiently.
【0006】[0006]
【課題を解決するための手段】本発明のアースオーガス
クリューの自動接合・切離し装置によれば、上部シャフ
ト(12)に形成された六角雌部(13)にはスクリュ
ーシャフト(15)に形成された六角雄部(16)が摺
動自在に収められ、その上部シャフト(12)の外縁部
下面には外筒(20)が設けられ、その外筒(20)と
上部シャフト(12)とで画成された環状の空室(2
1)内に環状のキャンバ(22)が収納され、そのキャ
ンバ(22)には内面に段部(23)がそして下部には
下方に向けて半径方向外方に拡がるコーン状部(24)
が形成され、外筒(20)と段部(23)との間にはス
プリング(25)が介装され、前記コーン状部(24)
に当接するコッタ(26)が上部シャフト(12)の長
孔(14)に摺動自在に収められ、そのコッタ(26)
は前記六角雄部(16)の凹溝(17)に係合でき、前
記コッタ(26)を選択的に移動して前記凹溝(17)
に係合させてロックするロック手段が設けられ、そのロ
ック手段は前記キャンバ(22)とそのキャンバを前記
スプリング(25)に抗して動かす油圧回路(30〜3
3)で構成され、加圧時にキャンバを動かしてロックを
解除するように構成されている。According to the apparatus for automatically joining and separating an earth auger screw of the present invention, a hexagonal female portion (13) formed on an upper shaft (12) is formed on a screw shaft (15). A hexagonal male part (16) is slidably housed, and an outer cylinder (20) is provided on the lower surface of the outer edge of the upper shaft (12), and the outer cylinder (20) and the upper shaft (12) are joined together. An annular vacancy (2
An annular camber (22) is accommodated in 1), and the camber (22) has a stepped portion (23) on the inner surface and a cone-shaped portion (24) extending radially outward downward at the lower portion.
Is formed, and a spring (25) is interposed between the outer cylinder (20) and the step portion (23), and the cone-shaped portion (24) is provided.
The cotter (26) which comes into contact with the cotter (26) is slidably housed in the elongated hole (14) of the upper shaft (12).
Can be engaged with the concave groove (17) of the hexagonal male part (16), and selectively move the cotter (26) so as to move the concave groove (17).
A lock means for engaging and locking the camber (22) and a hydraulic circuit (30-3) for moving the camber against the spring (25).
The lock is released by moving the camber at the time of pressurization.
【0007】[0007]
【0008】また、コッタは、水平な板状体で構成する
のが好ましい。It is preferable that the cotter is formed of a horizontal plate.
【0009】[0009]
【0010】[0010]
【作用】上記のように構成したアースオーガスクリュー
シャフトの自動接合・切離し装置においては、接合に際
し、加圧してキャンバを上動してコッタを非ロック状態
とする。In the automatic joining / separating device for the earth auger screw shaft configured as described above, in joining, the camber is moved upward by applying pressure to put the cotter into the unlocked state.
【0011】この状態で接合したのち、排油すると、ス
プリングに付勢されてキャンバが下動し、コーン状部で
コッタを押してコッタを凹溝側に移動する。これによ
り、コッタの端縁が凹溝に係合してロックする。When the oil is drained after joining in this state, the spring is urged to lower the camber, pushing the cotter in the cone-shaped portion and moving the cotter to the concave groove side. Thereby, the edge of the cotter engages with the concave groove and is locked.
【0012】[0012]
【実施例】以下図面を参照して本発明の実施例を説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【0013】図1には、連結装置5の三連の駆動軸6に
対する全体を符号10で示す自動接合・切離し装置が示
されている。FIG. 1 shows an automatic joining / disconnecting device indicated by reference numeral 10 as a whole with respect to a triple drive shaft 6 of a connecting device 5.
【0014】図2ないし図5において、自動接合・切離
し装置10の上部フランジ11には、上部シャフト12
が固設されている。その上部シャフト12に形成された
六角雌部13には、スクリューシャフト15に形成され
た六角雄部16が摺動自在に収められ、両者13、16
の間には、パッキング18が介装されている。また、上
部シャフト12の外縁部下面には、外筒20がボルト結
合されている。In FIG. 2 to FIG. 5, an upper shaft 11 is attached to an upper flange 11 of the automatic joining / separating device 10.
Is fixed. A hexagonal male portion 16 formed on the screw shaft 15 is slidably housed in a hexagonal female portion 13 formed on the upper shaft 12.
Between them, a packing 18 is interposed. An outer cylinder 20 is bolted to the lower surface of the outer edge of the upper shaft 12.
【0015】その外筒20と上部シャフト12とで画成
された環状の空室21内には、環状のキャンバ22が上
下動自在に収められている。そのキャンバ22の内面の
中程には、段部23が突設され、下部には下方に向けて
半径方向外方に拡がるコーン状部24が形成されてい
る。そして、外筒20と段部23との間には、スプリン
グ25が介装され、また、コーン状部24に当接する紙
面上下方向に長い一対のコッタ26が設けられている。
そのコッタ26は、周囲が半円形断面の平板体で形成さ
れ、上部シャフト12に形成された長孔14にシール2
7を介して水平方向に摺動自在に収められ、コッタ26
の直線状の端縁は、図示の状態では六角雄部16に形成
された円弧断面の凹溝17に係合されている。An annular camber 22 is vertically movably accommodated in an annular space 21 defined by the outer cylinder 20 and the upper shaft 12. A step portion 23 is protruded in the middle of the inner surface of the camber 22, and a cone-shaped portion 24 is formed at a lower portion of the camber 22 and extends radially outward. A spring 25 is interposed between the outer cylinder 20 and the step portion 23, and a pair of cotters 26 that are in contact with the cone portion 24 and that are long in the vertical direction on the paper surface are provided.
The cotter 26 is formed of a flat plate having a semicircular cross section around the periphery, and the seal 2 is inserted into the long hole 14 formed in the upper shaft 12.
7 so as to be freely slidable in the horizontal direction,
Is engaged with a concave groove 17 having an arc cross section formed in the hexagonal male portion 16 in the state shown in the figure.
【0016】他方、キャンバ22と外筒20との間に
は、環状の油溜り30が画成されている。その油溜り3
0は、チューブ31、上部フランジ11の外周に設けら
れたスイベル32及びチューブ33を介して図示しない
油圧操作部に接続されており、これらの部材20〜33
によりロック手段が構成されている。なお、図中の符号
7は固化材圧送用孔である。On the other hand, an annular oil sump 30 is defined between the camber 22 and the outer cylinder 20. That oil sump 3
Numeral 0 is connected to a hydraulic operating unit (not shown) via a tube 31, a swivel 32 provided on the outer periphery of the upper flange 11, and a tube 33, and these members 20 to 33
Constitutes a lock means. Reference numeral 7 in the figure is a hole for pressure feeding of the solidified material.
【0017】次に、接合・切離しの態様を説明する。Next, the mode of joining and separating will be described.
【0018】図6において、油圧操作部から油溜り30
に圧油を送油すると、キャンバ22はスプリング25の
付勢力に抗して上動され、コッタ26の外縁部は、コー
ン状部24の下縁の位置となる。したがって、コッタ2
6は、水平方向にフリーな状態となる。In FIG. 6, the oil sump 30
, The camber 22 is moved upward against the urging force of the spring 25, and the outer edge of the cotter 26 is positioned at the lower edge of the cone 24. Therefore, cotter 2
No. 6 is free in the horizontal direction.
【0019】この状態で図7に示すように、六角雄部1
6を六角雌部13に一杯に挿入する。In this state, as shown in FIG.
6 is fully inserted into the hexagonal female part 13.
【0020】そこで、油溜り30から排油すると図8に
示すように、スプリング25に付勢されてキャンバ22
が下動し、コーン状部24に押圧されてコッタ26が凹
溝17側に移動し、内縁部が凹溝17に係合して六角雄
部16と六角雌部13とがコッタ26によりロックされ
る。Then, when the oil is drained from the oil reservoir 30, as shown in FIG.
Moves downward, the cotter 26 is pressed by the cone-shaped portion 24 and moves to the concave groove 17 side, the inner edge portion engages with the concave groove 17, and the hexagonal male portion 16 and the hexagonal female portion 13 are locked by the cotter 26. Is done.
【0021】切離しの際は、図8の状態で送油すると、
キャンバ22が上動し、コッタ26がフリー状態とな
る。この際、コッタ26が凹溝17に係合していても、
フリー状態なので、六角雄部16を引き抜くと、コッタ
26が移動して六角雄部16は自由に切離される。At the time of separation, if oil is fed in the state shown in FIG.
The camber 22 moves upward, and the cotter 26 enters a free state. At this time, even if the cotter 26 is engaged with the concave groove 17,
In the free state, when the hexagonal male portion 16 is pulled out, the cotter 26 moves and the hexagonal male portion 16 is freely separated.
【0022】[0022]
【発明の効果】以上の通り本発明によれば下記のすぐれ
た効果を奏する。 (a) 排油時にキャンバがスプリングの作用で押圧さ
れてコッタが凹溝に係合するので、送油がない限り、係
合状態が維持でき、ロック作用が確実に行われる。 (b) 送油によりコッタはフリーの状態となり、切離
しが容易に行われる。 (c) したがって不用意に切離されることがなく、安
全であり、作業も簡単なため効率的である。 (d) 回転力が六角形状の雌雄部で伝達し、スラスト
力がコッタで伝達されるので、部品点数が少ない簡単な
構成で確実な連結ができる。As described above, according to the present invention, the following excellent effects can be obtained. (A) Since the camber is pressed by the action of the spring when the oil is drained and the cotter engages with the concave groove, the engaged state can be maintained as long as there is no oil supply, and the locking operation is reliably performed. (B) The cotter is in a free state by oil supply, and can be easily separated. (C) Therefore, it is safe because it is not inadvertently cut off, and the operation is simple and efficient. (D) Since the rotational force is transmitted by the hexagonal male and female parts and the thrust force is transmitted by the cotter, reliable connection can be achieved with a simple configuration with a small number of parts.
【0023】更に、自動化を図ることが可能で、省力化
に資することができる。Further, automation can be achieved, which contributes to labor saving.
【図1】本発明の接合・切離し装置を備えた着脱装置を
示す斜視図。FIG. 1 is a perspective view showing a detachable device provided with a joining / separating device of the present invention.
【図2】本発明の一実施例を示す断面斜視図。FIG. 2 is a sectional perspective view showing one embodiment of the present invention.
【図3】図2の一部を断面で示した側面図。FIG. 3 is a side view showing a part of FIG. 2 in section;
【図4】図3のA−A線矢視断面図。FIG. 4 is a sectional view taken along line AA of FIG. 3;
【図5】コッタの正面図。FIG. 5 is a front view of a cotter.
【図6】接合前の状態を示す側面図。FIG. 6 is a side view showing a state before joining.
【図7】接合後の状態を示す側面図。FIG. 7 is a side view showing a state after joining.
【図8】ロックの状態を示す側面図。FIG. 8 is a side view showing a locked state.
【図9】アースオーガ機を示す側面図。FIG. 9 is a side view showing the earth auger machine.
【図10】従来の接合部を示す側断面図。FIG. 10 is a side sectional view showing a conventional joint.
【図11】図10のB−B線矢視断面図。FIG. 11 is a sectional view taken along line BB of FIG. 10;
1・・・オーガスクリュー 2・・・上側スクリュー 2a・・・六角雄部 3・・・下側スクリュー 3a・・・六角雌部 4・・・テーパピン 5・・・駆動軸 7・・・連結装置 6・・・固化材圧送用孔 10・・・自動接合・切離し装置 11・・・上部フランジ 12・・・上部シャフト 13・・・六角雌部 14・・・長孔 15・・・スクリューシャフト 16・・・六角雄部 17・・・凹溝 18・・・パッキング 20・・・外筒 21・・・空室 22・・・キャンバ 23・・・段部 24・・・コーン状部 25・・・スプリング 26・・・コッタ 27・・・シール 30・・・油溜り 31、33・・・チューブ 32・・・スイベル DESCRIPTION OF SYMBOLS 1 ... Auger screw 2 ... Upper screw 2a ... Hex male part 3 ... Lower screw 3a ... Hex female part 4 ... Taper pin 5 ... Drive shaft 7 ... Connecting device 6 ... Hole for feeding solidified material 10 ... Automatic joining / separating device 11 ... Upper flange 12 ... Upper shaft 13 ... Hexagon female part 14 ... Long hole 15 ... Screw shaft 16 ... hexagonal male part 17 ... concave groove 18 ... packing 20 ... outer cylinder 21 ... vacant room 22 ... camber 23 ... step part 24 ... cone-shaped part 25 ...・ Spring 26 ・ ・ ・ Cotter 27 ・ ・ ・ Seal 30 ・ ・ ・ Oil pool 31,33 ・ ・ ・ Tube 32 ・ ・ ・ Swivel
Claims (1)
雌部(13)にはスクリューシャフト(15)に形成さ
れた六角雄部(16)が摺動自在に収められ、その上部
シャフト(12)の外縁部下面には外筒(20)が設け
られ、その外筒(20)と上部シャフト(12)とで画
成された環状の空室(21)内に環状のキャンバ(2
2)が収納され、そのキャンバ(22)には内面に段部
(23)がそして下部には下方に向けて半径方向外方に
拡がるコーン状部(24)が形成され、外筒(20)と
段部(23)との間にはスプリング(25)が介装さ
れ、前記コーン状部(24)に当接するコッタ(26)
が上部シャフト(12)の長孔(14)に摺動自在に収
められ、そのコッタ(26)は前記六角雄部(16)の
凹溝(17)に係合でき、前記コッタ(26)を選択的
に移動して前記凹溝(17)に係合させてロックするロ
ック手段が設けられ、そのロック手段は前記キャンバ
(22)とそのキャンバを前記スプリング(25)に抗
して動かす油圧回路(30〜33)で構成され、加圧時
にキャンバを動かしてロックを解除するように構成され
ていることを特徴とするアースオーガスクリューの自動
接合・切離し装置。A hexagonal male part (16) formed on a screw shaft (15) is slidably housed in a hexagonal female part (13) formed on an upper shaft (12). An outer cylinder (20) is provided on the lower surface of the outer edge of the outer cam (20).
The camber (22) has a stepped portion (23) formed on the inner surface thereof, and a cone-shaped portion (24) extending radially outwardly downward at a lower portion thereof. A spring (25) is interposed between the step (23) and the cotter (26) which comes into contact with the cone (24).
Is slidably received in a long hole (14) of the upper shaft (12), and its cotter (26) can be engaged with the concave groove (17) of the hexagonal male part (16). Locking means for selectively moving and engaging and locking the groove (17) is provided, the locking means comprising a camber (22) and a hydraulic circuit for moving the camber against the spring (25). (30-33) An automatic joining / separating device for an earth auger screw, characterized in that the camber is moved to release the lock when pressurized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5259776A JP3042662B2 (en) | 1993-10-18 | 1993-10-18 | Automatic joining and separating device for earth auger screw shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5259776A JP3042662B2 (en) | 1993-10-18 | 1993-10-18 | Automatic joining and separating device for earth auger screw shaft |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07113392A JPH07113392A (en) | 1995-05-02 |
JP3042662B2 true JP3042662B2 (en) | 2000-05-15 |
Family
ID=17338819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5259776A Expired - Fee Related JP3042662B2 (en) | 1993-10-18 | 1993-10-18 | Automatic joining and separating device for earth auger screw shaft |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3042662B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8229154B2 (en) | 2006-10-11 | 2012-07-24 | Sony Corporation | Headphone device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPQ316899A0 (en) * | 1999-09-28 | 1999-10-21 | Steel Foundations Limited | Improvements in screw pile anchors |
CN107303599B (en) * | 2016-04-18 | 2022-11-25 | 杭州沪宁电梯部件股份有限公司 | Sand box latch hook mechanism |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61122391A (en) * | 1984-11-15 | 1986-06-10 | 三和機材株式会社 | Automatic connection apparatus of drilling rod body to output shaft |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2540789Y2 (en) * | 1991-01-28 | 1997-07-09 | 日本車輌製造株式会社 | Rod connecting device for excavation of steel pipe pile construction machine |
-
1993
- 1993-10-18 JP JP5259776A patent/JP3042662B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61122391A (en) * | 1984-11-15 | 1986-06-10 | 三和機材株式会社 | Automatic connection apparatus of drilling rod body to output shaft |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8229154B2 (en) | 2006-10-11 | 2012-07-24 | Sony Corporation | Headphone device |
Also Published As
Publication number | Publication date |
---|---|
JPH07113392A (en) | 1995-05-02 |
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