JP2019002139A - Chuck device for steel pipe pile - Google Patents
Chuck device for steel pipe pile Download PDFInfo
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- JP2019002139A JP2019002139A JP2017115099A JP2017115099A JP2019002139A JP 2019002139 A JP2019002139 A JP 2019002139A JP 2017115099 A JP2017115099 A JP 2017115099A JP 2017115099 A JP2017115099 A JP 2017115099A JP 2019002139 A JP2019002139 A JP 2019002139A
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Abstract
Description
本発明は地盤強化のため、回転・圧入装置にチャックされて地中に打ち込まれる鋼管杭のチャック装置に関する。 The present invention relates to a steel pipe pile chuck device that is chucked by a rotary / press-fit device and driven into the ground for ground reinforcement.
この種のチャック装置として、特許文献1に示されるチャック装置がある。
このチャック装置は、駆動軸を上面に有しカム軸を下面に有する上部フランジと、該上部フランジに回動可能に連結され上記カム軸の周囲を囲む内筒と鋼管杭の挿入間隙を存して該内筒の外方に設けた外筒を有する下部フランジを具備し、該下部フランジの内筒に窓孔を形成し、上記上部フランジが回転した際上記カム軸のカム面により半径方向に押し出されるよう押圧コマを上記窓孔に挿入した構成が採用されている（請求項１）。
As this type of chuck device, there is a chuck device disclosed in Patent Document 1.
This chuck device has an upper flange having a drive shaft on the upper surface and a cam shaft on the lower surface, and an insertion gap between the inner cylinder and the steel pipe pile that is rotatably connected to the upper flange and surrounds the cam shaft. A lower flange having an outer cylinder provided on the outer side of the inner cylinder, a window hole is formed in the inner cylinder of the lower flange, and when the upper flange rotates, the cam surface of the cam shaft is used in a radial direction. A configuration is adopted in which a pressing piece is inserted into the window hole so as to be pushed out (Claim 1).
特許文献１に示される鋼管杭のチャック装置では、上部フランジを回転させるという簡易な操作によって鋼管杭のチャックが行える利点がある。
しかしながら、特許文献１：特開２００７−１６９８９０号公報のチャック装置では、下部フランジに対して上部フランジを回転させる構成、および下部フランジ下面側に外筒と内筒の二重筒を設ける構成を採用し、さらに、内筒に窓孔を設け、この窓孔内に押圧コマを配置する構成となっているので、構造が複雑となり、その製造が厄介で、コスト高となる課題がある。
The steel pipe pile chuck device disclosed in Patent Document 1 has an advantage that the steel pipe pile can be chucked by a simple operation of rotating the upper flange.
However, the chuck device disclosed in Japanese Patent Application Laid-Open No. 2007-169890 employs a configuration in which the upper flange is rotated with respect to the lower flange and a configuration in which a double cylinder of an outer cylinder and an inner cylinder is provided on the lower surface of the lower flange. In addition, since the inner cylinder is provided with a window hole and the pressing piece is arranged in the window hole, the structure becomes complicated, and the manufacture thereof is troublesome and the cost is increased.
本発明は上記課題を解決すべくなされたものであり、その目的とするところは、簡易な構造のものとすることができ、製造が容易で、コストの低減化が図れる鋼管杭のチャック装置を提供することにある。 The present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a steel pipe pile chuck device that can be of a simple structure, is easy to manufacture, and can reduce costs. It is to provide.
上記の目的を達成するため、本発明は次の構成を備える。
すなわち、本発明に係る鋼管杭のチャック装置は、天板を有する筒状をなし、前記天板に透孔を有する受筒と、該受筒の前記天板の透孔を挿通して上下動自在に設けられ、下部に下方に向けてすぼまる錐体部を有し、上部にて、回転・圧入装置に連結可能な拡開部材と、該拡開部材の前記錐体部の壁面たるテーパー面と前記受筒内壁面との間に、前記拡開部材が押し下げられた際、前記テーパー面に押圧されることによって前記受筒の径方向外方に移動可能に配置され、外側面が、前記受筒内壁面との間に先端が挿入されるチャックすべき鋼管杭の内壁面に食い込み可能な凹凸面に形成された複数のクサビ部材と、前記拡開部材の下部に設けられ、前記クサビ部材を下側から保持する保持部材と、前記各クサビ部材を吊り下げ状態に保持すると共に、前記クサビ部材の前記受筒の径方向への移動をガイドするガイド部材と、該ガイド部材と前記受筒の天板下面との間に配設された緩衝部材とを具備することを特徴とする。
In order to achieve the above object, the present invention comprises the following arrangement.
That is, the steel pipe pile chuck device according to the present invention has a cylindrical shape having a top plate, and moves vertically by inserting a receiving tube having a through hole in the top plate and the through hole of the top plate of the receiving tube. An expanding member that is freely provided and has a conical portion that swells downward in the lower portion, and that can be connected to the rotation / press-fitting device in the upper portion, and is a wall surface of the conical portion of the expanding member When the expansion member is pushed down between the tapered surface and the inner wall surface of the receiving cylinder, the outer surface is arranged so as to be movable radially outward of the receiving cylinder by being pressed by the tapered surface. A plurality of wedge members formed on an uneven surface that can bite into an inner wall surface of a steel pipe pile to be chucked, the tip of which is inserted between the inner wall surface of the receiving cylinder, and a lower portion of the expanding member, A holding member for holding the wedge member from below, and holding each wedge member in a suspended state Both include a guide member that guides the movement of the wedge member in the radial direction of the receiving cylinder, and a buffer member disposed between the guide member and a lower surface of the top plate of the receiving cylinder. And
前記各クサビ部材に対応する前記錐体部のテーパー面が、前記錐体部の外壁面に溝状に形成し、前記クサビ部材の内側面を、前記拡開部材のテーパー面に対応するテーパー面に形成すると好適である。
前記クサビ部材の外側面を、前記内側面のテーパー面よりも幅広に形成するとチャック力を増大でき好適である。
前記受筒および前記クサビ部材を、チャックすべき鋼管杭の直径に合わせて交換可能に形成できる。
The tapered surface of the cone portion corresponding to each wedge member is formed in a groove shape on the outer wall surface of the cone portion, and the inner surface of the wedge member is a tapered surface corresponding to the tapered surface of the expanding member. It is preferable to form it.
It is preferable that the outer surface of the wedge member is formed wider than the tapered surface of the inner surface because the chucking force can be increased.
The receiving cylinder and the wedge member can be formed to be exchangeable in accordance with the diameter of the steel pipe pile to be chucked.
前記緩衝部材をゴム板にすることができる。
前記各クサビ部材の外周に凹溝を形成し、複数の前記クサビ部材の凹溝に亘って、伸縮可能なＯリングを掛け渡すようにすると好適である。
前記受筒の天板の透孔を角孔に形成し、該角孔を挿通する前記拡開部材の部位を角柱に形成することができる。
前記クサビ部材を前記ガイド部材に吊り下げボルトを介して保持するようにすることができる。
The buffer member can be a rubber plate.
It is preferable that a concave groove is formed on the outer periphery of each wedge member, and an extendable O-ring is spanned across the concave grooves of the plurality of wedge members.
The through hole of the top plate of the receiving cylinder can be formed in a square hole, and the portion of the expanding member that passes through the square hole can be formed in a prism.
The wedge member can be held on the guide member via a hanging bolt.
本発明によれば、受筒を一重構造にし、かつ回転カム構造を採用せず、単に拡開部材の上下動によるクサビ構造としたので、全体を簡易な構造のものとすることができ、製造が容易で、コストの低減化が図れる鋼管杭のチャック装置を提供できる。
また、部材を交換することで径の異なる鋼管に対応できるので利便性も高い。
According to the present invention, since the receiving tube has a single structure and does not employ a rotating cam structure, but simply has a wedge structure by the vertical movement of the expanding member, the entire structure can be of a simple structure and manufactured. Therefore, it is possible to provide a steel pipe pile chuck device that is easy to reduce the cost.
Moreover, since it can respond to the steel pipe from which a diameter differs by replacing | exchanging a member, it is also highly convenient.
以下本発明の実施の形態を添付図面に基づき詳細に説明する。
図１は本実施の形態における、鋼管杭チャック前のチャック装置１０の断面図、図２は鋼管杭チャック後のチャック装置１０の断面図である。
図１、図２において、１２は受筒であり、天板１３を有する筒状をなし、天板１３には四角形等の角孔からなる透孔１４が形成されている。
１６は拡開部材であり、角柱状をなし、天板１３の透孔１４を挿通して上下動自在に設けられている。拡開部材１６は、上部は、透孔１４を挿通する角柱部１６ａに形成され、下部に下方に向けてすぼまる角錐部（錐体部）１６ｂを有し、上端部に、チャック装置１０にチャックされた鋼管杭１８を地中に打ち込むための回転・圧入装置（図示せず）のアダプター２０（図２）に連結される連結部（連結フランジ）１６ｃを有する。
なお、拡開部材１６は円柱材を用いても良く、この場合には天板１３の透孔１４を円形孔とすれば同様である。
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of the chuck device 10 before steel pipe pile chucking in the present embodiment, and FIG. 2 is a cross-sectional view of the chuck device 10 after steel pipe pile chucking.
In FIG. 1 and FIG. 2, reference numeral 12 denotes a receiving cylinder, which has a cylindrical shape having a top plate 13, and the top plate 13 is formed with a through-hole 14 made of a square hole such as a square.
Reference numeral 16 denotes an expanding member, which has a prismatic shape and is provided so as to be vertically movable through the through hole 14 of the top plate 13. The expanding member 16 has an upper part formed in a prismatic part 16a that passes through the through-hole 14, a lower part has a pyramid part (cone part) 16b that swells downward, and an upper end part of the chuck device 10. It has a connecting portion (connecting flange) 16c connected to an adapter 20 (FIG. 2) of a rotation / press fitting device (not shown) for driving the steel pipe pile 18 chucked into the ground.
Note that the expanding member 16 may be made of a cylindrical material, and in this case, if the through hole 14 of the top plate 13 is a circular hole, the same applies.
連結部１６ｃは、円板状をなし、アダプター２０のフランジ部に連結ボルト２１によって取り付けられる。連結部１６ｃの上面には、図３に示すように、回転・圧入装置への位置決め用と、同装置からの回転力伝達用の突起１６ｄが設けられている。なお、回転・圧入装置への取付け構造は上記フランジと連結ボルト２１に限られないことはもちろんである。
図４、図５に示すように、拡開部材１６における角錐部１６は、角柱（四角柱）部材の各壁面を溝状に削ってテーパー面１７（１７ａ、１７ｂ、１７ｃ、１７ｄ）に形成することで角錐台状に形成されている。テーパー面１７のテーパーの角度は図３に示すように５〜１０°程度が好適である。
The connecting portion 16 c has a disc shape, and is attached to the flange portion of the adapter 20 by a connecting bolt 21. As shown in FIG. 3, a protrusion 16d for positioning to the rotation / press-fitting device and for transmitting a rotational force from the device is provided on the upper surface of the connecting portion 16c. Of course, the attachment structure to the rotation / press-fitting device is not limited to the flange and the connecting bolt 21.
As shown in FIGS. 4 and 5, the pyramid portion 16 of the expanding member 16 is formed into a tapered surface 17 (17 a, 17 b, 17 c, 17 d) by cutting each wall surface of the prism (square prism) member into a groove shape. Thus, it is formed in a truncated pyramid shape. The taper angle of the taper surface 17 is preferably about 5 to 10 ° as shown in FIG.
次に、２２（２２ａ、２２ｂ、２２ｃ、２２ｄ）はクサビ部材である。各クサビ部材２２は、拡開部材１６の角錐部１６ｂの壁面たる各テーパー面１７と、対応する受筒１２内壁面との間に、拡開部材１６が押し下げられた際、各テーパー面１７に押圧されることによって受筒１２の径方向外方に移動可能に配置されている。各クサビ部材２２の、拡開部材１６のテーパー面１７に対向する基部は、溝状のテーパー面１７に嵌り込むようにその幅が設定され、また各基部面（内側面）は、テーパー面１７に対応するテーパー面に形成されている。 Next, 22 (22a, 22b, 22c, 22d) is a wedge member. Each wedge member 22 is placed on each tapered surface 17 when the expanding member 16 is pushed down between each tapered surface 17 which is the wall surface of the pyramid portion 16b of the expanding member 16 and the corresponding inner wall surface of the receiving cylinder 12. It is arranged so as to be movable radially outward of the receiving cylinder 12 by being pressed. The width of the base portion of each wedge member 22 facing the tapered surface 17 of the expanding member 16 is set so as to fit into the groove-shaped tapered surface 17, and each base surface (inner side surface) is tapered surface 17. It is formed in the taper surface corresponding to.
このように、クサビ部材２２がその基部において、溝状のテーパー面１７に嵌り込むようにされていることで、拡開部材１６が押し下げられる際、クサビ部材２２と拡開部材１６とが横方向にずれることがない。また、拡開部材１６が押し下げられることによって、クサビ部材２２は、テーパー面１７により押動されて受筒１２の径方向に移動するが、上記のように各基部面（内側面）が、テーパー面１７に対応するテーパー面に形成されていることにより、クサビ部材２２の外側面は、受筒１２の内壁面と平行状態を保ったまま移動する。 As described above, the wedge member 22 is fitted into the groove-shaped tapered surface 17 at the base portion thereof, so that when the expanding member 16 is pushed down, the wedge member 22 and the expanding member 16 are laterally moved. There is no slippage. Further, when the expanding member 16 is pushed down, the wedge member 22 is pushed by the tapered surface 17 and moves in the radial direction of the receiving cylinder 12, but each base surface (inner side surface) is tapered as described above. By forming the tapered surface corresponding to the surface 17, the outer surface of the wedge member 22 moves while maintaining a parallel state with the inner wall surface of the receiving tube 12.
クサビ部材２２の外側面は、受筒１２内壁面との間に先端が挿入されるチャックすべき鋼管杭１８の内壁面に沿う円弧面をなすと共に、鋼管杭１８の内壁面に食い込み可能な凹凸面２３（図６）に形成されている。
この凹凸面２３に形成されたクサビ部材２２の外側面を、基部側よりも幅広に形成している。これにより、鋼管杭１８の内壁面に広い範囲で食い込むので、鋼管杭１８のチャック効果が増大する。
クサビ部材２２は、硬質材料（例えばＳＫＤ１１）を用いて、例えばロストワックス鋳造法により製造するのがコスト的に有利である。
The outer surface of the wedge member 22 forms an arc surface along the inner wall surface of the steel pipe pile 18 to be chucked between the inner wall surface and the inner wall surface of the receiving cylinder 12, and unevenness that can bite into the inner wall surface of the steel pipe pile 18. It is formed on the surface 23 (FIG. 6).
The outer surface of the wedge member 22 formed on the uneven surface 23 is formed wider than the base side. Thereby, since it bites into the inner wall surface of the steel pipe pile 18 in a wide range, the chucking effect of the steel pipe pile 18 increases.
It is advantageous in terms of cost to manufacture the wedge member 22 by using, for example, a lost wax casting method using a hard material (for example, SKD11).
クサビ部材２２は、拡開部材１６の下面にボルトナット２４によって固定されたクサビ受け（保持部材）２５によって下側から支持され、上記位置に保持されるようになっている。ボルトナット２４のナットは、ナットおよびボルトを貫通する止めピン２６によって回り止めするようにすると、施工中の衝撃などによって、ナットが回転し、これによりクサビ受け２５が外れてしまうのを防止でき、施工中にクサビの落下を防ぐことができるので安全である。 The wedge member 22 is supported from below by a wedge receiver (holding member) 25 fixed to the lower surface of the expanding member 16 by a bolt and nut 24, and is held at the above position. If the nut of the bolt nut 24 is prevented from rotating by the stop pin 26 penetrating the nut and the bolt, it is possible to prevent the nut receiver 25 from being removed due to rotation of the nut due to impact during construction or the like, It is safe because the wedge can be prevented from falling during construction.
また、各クサビ部材２２は、円板状をなし、拡開部材１６が挿通するガイド部材３０によって吊り下げ状態に保持されている。
すなわち、各クサビ部材２２上部には、頭部付きボルト３１が固定されると共に、この頭部付きボルト３１のボルト部が、ガイド部材３０の、段付き溝３２内を移動自在に案内されることで、各クサビ部材２２は、ガイド部材３０によって吊り下げ状態に保持されると共に、受筒１２の径方向に移動可能とされている。
なお、頭部付きボルト３１の頭部は、段付き溝３２の段部に支持される。
また、クサビ部材２２は頭部付きボルト３１と一体化した形状で作成されたものでも良い。
Each wedge member 22 has a disk shape and is held in a suspended state by a guide member 30 through which the expanding member 16 is inserted.
That is, the head-attached bolt 31 is fixed to the upper portion of each wedge member 22, and the bolt portion of the head-attached bolt 31 is guided movably in the stepped groove 32 of the guide member 30. Thus, each wedge member 22 is held in a suspended state by the guide member 30 and is movable in the radial direction of the receiving tube 12.
The head of the bolt 31 with the head is supported by the step of the stepped groove 32.
Further, the wedge member 22 may be formed in a shape integrated with the head-attached bolt 31.
また、各クサビ部材２２の外周に凹溝３６が形成され、複数（４個）のクサビ部材２２の凹溝３６に亘って、伸縮可能なＯリング３７が掛け渡されている（図１、図２参照）。このＯリング３７の付勢力によって、常時は、各クサビ部材２２は、中央方向（拡開部材方向）に集合するように付勢され、図１に示すように、受筒１２内壁面と各クサビ部材２２の外側面との間に、鋼管杭１８の先端部を挿入可能な空間Ｓが形成される。 Further, a concave groove 36 is formed on the outer periphery of each wedge member 22, and an extendable O-ring 37 is spanned across the concave grooves 36 of the plurality (four) of wedge members 22 (FIG. 1, FIG. 1). 2). Due to the urging force of the O-ring 37, the wedge members 22 are normally urged so as to gather in the center direction (the expanding member direction), and as shown in FIG. A space S into which the distal end portion of the steel pipe pile 18 can be inserted is formed between the outer surface of the member 22.
なお、Ｏリング３７は径方向に拡縮性のあるC型リング（図示せず）などを用いても良く、また、必ずしも設けることを要しない。
この場合、例えば、各クサビ部材２２の下部外周部にテーパー部（図示せず）を形成して、鋼管杭１８先端がこのテーパー部に当接してクサビ部材２２を内方に押動することによって、鋼管杭１８を受筒１２内に挿入可能なようにしてもよい。
次に、３４は緩衝部材たるコイルスプリングであり、ガイド部材３０と受筒１２の天板１３下面との間に配設されている。緩衝部材３４は、施工中に回転・圧入装置から衝撃力が加わった場合に、ガイド部材、頭部付きボルト３１への衝撃力を軽減する作用をし、これら部材の破損を防止している。なお、緩衝部材は、ゴム板（図示せず）等の弾性部材を用いることができる。
The O-ring 37 may be a C-shaped ring (not shown) that is expandable / contractable in the radial direction, and is not necessarily provided.
In this case, for example, a tapered portion (not shown) is formed on the lower outer peripheral portion of each wedge member 22, and the tip of the steel pipe pile 18 abuts on the tapered portion to push the wedge member 22 inward. The steel pipe pile 18 may be inserted into the receiving cylinder 12.
Next, reference numeral 34 denotes a coil spring as a buffer member, which is disposed between the guide member 30 and the lower surface of the top plate 13 of the receiving cylinder 12. The buffer member 34 acts to reduce the impact force to the guide member and the bolt 31 with the head when the impact force is applied from the rotation / press-fitting device during construction, and prevents the members from being damaged. The buffer member can be an elastic member such as a rubber plate (not shown).
鋼管杭１８は、現在、外径が、８９．１ｍｍ、１０１．６ｍｍ、１１４．３ｍｍ、１３９．８ｍｍ、１６５．２ｍｍ等の５種類ほどの大きさのものが用意されている。
本実施の形態に係るチャック装置１０では、鋼管杭１８の大きさに合わせて、受筒１２および各クサビ部材２２を５種類用意することで、対応する鋼管杭１８用のチャック装置１０を容易に組み立てて使用することが可能である。
The steel pipe piles 18 are currently prepared with five types of outer diameters such as 89.1 mm, 101.6 mm, 114.3 mm, 139.8 mm, and 165.2 mm.
In the chuck device 10 according to the present embodiment, the corresponding chuck device 10 for the steel pipe pile 18 can be easily prepared by preparing five types of the receiving cylinder 12 and each wedge member 22 according to the size of the steel pipe pile 18. It can be assembled and used.
すなわち、まず図９に示すように、用いるクサビ部材２２として所要大きさのクサビ部材２２を選択し、このクサビ部材２２に頭部付きボルト３１を螺着し、この頭部付きボルト３１をガイド部材３０の段付き溝３２に挿入する。
次に、図１０に示すように、４つのクサビ部材２２の凹溝３６にＯリング３７を掛け渡して、４つのクサビ部材２２の集合物を形成する。
一方、図１１に示すように、用いる受筒１２として所要大きさの受筒１２を選択し、この受筒１２に、拡開部材１６を挿通する。
First, as shown in FIG. 9, a wedge member 22 having a required size is selected as the wedge member 22 to be used, and a head-attached bolt 31 is screwed to the wedge member 22, and the head-attached bolt 31 is attached to the guide member. Insert into 30 stepped grooves 32.
Next, as shown in FIG. 10, an O-ring 37 is spanned over the concave grooves 36 of the four wedge members 22 to form an aggregate of the four wedge members 22.
On the other hand, as shown in FIG. 11, a receiving cylinder 12 having a required size is selected as the receiving cylinder 12 to be used, and an expanding member 16 is inserted into the receiving cylinder 12.
次いで、図１２に示すように、クサビ部材２２の集合物を緩衝部材３４と共に、受筒１２の内壁と拡開部材１６外壁との間の空間に組み込む。
そして、図１３に示すように、拡開部材１６の下部に保持部材２５をボルトナット２４等の固定部材によって取り付けることでチャック装置１０に組み立てることができる。
Next, as shown in FIG. 12, the aggregate of the wedge members 22 is incorporated into the space between the inner wall of the receiving tube 12 and the outer wall of the expanding member 16 together with the buffer member 34.
Then, as shown in FIG. 13, the holding device 25 can be assembled to the chuck device 10 by attaching the holding member 25 to the lower portion of the expanding member 16 with a fixing member such as a bolt nut 24.
本実施の形態に係るチャック装置１０は上記のように構成されている。
このチャック装置１０により鋼管杭１８をチャックするには、まず、チャック装置１０をボルト２１等の固定具によって、アダプター２０を介して回転・圧入装置に取り付ける。
次いで、図２に示すように、受筒１２内壁面とクサビ部材２２の外側面との間の間隙Ｓに、鋼管杭１８の先端がガイド部材３０に当接するまで挿入する。
次に、回転・圧入装置の油圧機構（図示せず）によって拡開部材１６を押し下げる。このときガイド部材３０と鋼管杭１８の先端とが当接しているので、クサビ部材の位置が保持されるので拡開部材１６だけが押し込まれることとになり、各テーパー面１７によって、各クサビ部材２２がガイド部材３０によって吊り下げられた状態のまま、受筒１２の径方向外方に押動され、その外側面の凹凸面が鋼管杭１８の内壁面に食い込み、また鋼管杭１８はその状態で受筒１２の内壁面に押圧されることから、鋼管杭１８はチャック装置１０によりチャックされることになる。
The chuck device 10 according to the present embodiment is configured as described above.
In order to chuck the steel pipe pile 18 by the chuck device 10, first, the chuck device 10 is attached to the rotation / press-fitting device via the adapter 20 with a fixture such as a bolt 21.
Next, as shown in FIG. 2, the steel pipe pile 18 is inserted into the gap S between the inner wall surface of the receiving cylinder 12 and the outer surface of the wedge member 22 until the tip of the steel pipe pile 18 contacts the guide member 30.
Next, the expansion member 16 is pushed down by a hydraulic mechanism (not shown) of the rotation / press-fitting device. At this time, since the guide member 30 and the tip of the steel pipe pile 18 are in contact with each other, the position of the wedge member is maintained, so that only the expanding member 16 is pushed in, and each wedge member is formed by each tapered surface 17. While 22 is suspended by the guide member 30, it is pushed radially outward of the receiving cylinder 12, the uneven surface of the outer surface bites into the inner wall surface of the steel pipe pile 18, and the steel pipe pile 18 is in that state. Therefore, the steel pipe pile 18 is chucked by the chuck device 10 because it is pressed against the inner wall surface of the receiving cylinder 12.
なお、拡開部材１６が下降されることにより、クサビ部材２２が若干下降するが、直ちにその外側面が鋼管杭１８の内壁面に当接するからその下降が停止され、さらに拡開部材１６が下降することによって、外方に移動し、その外側面の凹凸面が鋼管杭１８の内壁面に食い込み、鋼管杭１８がチャックされることになる。受筒１２は、クサビ部材２２と共に鋼管杭１８を挟圧すると共に、鋼管杭１８のふくらみを防止する。 When the expanding member 16 is lowered, the wedge member 22 is slightly lowered. However, since the outer surface immediately contacts the inner wall surface of the steel pipe pile 18, the lowering is stopped, and the expanding member 16 is further lowered. By doing so, it moves outward, the uneven surface of the outer surface bites into the inner wall surface of the steel pipe pile 18, and the steel pipe pile 18 is chucked. The receiving cylinder 12 clamps the steel pipe pile 18 together with the wedge member 22 and prevents the steel pipe pile 18 from bulging.
上記のように、鋼管杭１８をチャック装置１０によってチャックした後、打撃・回転装置により、チャック装置１０を介して回転力及び圧入力を鋼管杭１８に加えることにより、鋼管杭１８を地中に打ち込むことができる。
作業終了後、鋼管杭１８のチャックを外すには、回転・圧入装置により拡開部材１６を上昇させればよい。これにより、図１に示すように、拡開部材１６からのクサビ部材２２への押動力が解除され、保持部材２５によってクサビ部材２２が受けられ、緩衝部材３４、受筒１２を含むチャック装置１０全体が鋼管杭１８から外れることになる。
As described above, after the steel pipe pile 18 is chucked by the chuck device 10, by applying a rotational force and pressure input to the steel pipe pile 18 through the chuck device 10 by the impacting / rotating device, the steel pipe pile 18 is brought into the ground. You can drive in.
In order to remove the chuck of the steel pipe pile 18 after completion of the work, the expanding member 16 may be raised by a rotation / press-fitting device. As a result, as shown in FIG. 1, the pushing force from the expanding member 16 to the wedge member 22 is released, the wedge member 22 is received by the holding member 25, and the chuck device 10 including the buffer member 34 and the receiving cylinder 12. The whole comes off from the steel pipe pile 18.
１０ チャック装置、１２ 受筒、１３ 天板、１４ 透孔、１６ 拡開部材、１７ テーパー面、１８ 鋼管杭、２１ ボルト、２２ クサビ部材、２４ ボルトナット、２５ 保持部材、２６ 止めピン、３０ ガイド部材、３１ 頭部付きボルト、３２ 段付き溝、３４ 緩衝部材、３６ 凹溝、３７ Ｏリング 10 chuck device, 12 receiving tube, 13 top plate, 14 through hole, 16 expanding member, 17 taper surface, 18 steel pipe pile, 21 bolt, 22 wedge member, 24 bolt nut, 25 holding member, 26 retaining pin, 30 guide Member, 31 Bolt with head, 32 Stepped groove, 34 Buffer member, 36 Concave groove, 37 O-ring
Claims (4)
該受筒の前記天板の透孔を挿通して上下動自在に設けられ、下部に下方に向けてすぼまる錐体部を有し、上部にて、回転・圧入装置に連結可能な拡開部材と、
該拡開部材の前記錐体部の壁面たる各テーパー面と前記受筒内壁面との間に、前記拡開部材が押し下げられた際、前記テーパー面に押圧されることによって前記受筒の径方向外方に移動可能に配置され、外側面が、前記受筒内壁面との間に先端が挿入されるチャックすべき鋼管杭の内壁面に食い込み可能な凹凸面に形成された複数のクサビ部材と、
前記拡開部材の下部に設けられ、前記クサビ部材を下側から保持する保持部材と、
前記各クサビ部材を吊り下げ状態に保持すると共に、前記クサビ部材の前記受筒の径方向への移動をガイドするガイド部材と、
該ガイド部材と前記受筒の天板下面との間に配設された緩衝部材とを具備することを特徴とする鋼管杭のチャック装置。 A cylindrical shape having a top plate, a receiving tube having a through hole in the top plate,
An extension that can be connected to the rotary / press-fitting device at the upper part is provided in the lower part of the cylinder so that it can be moved up and down through the through-hole of the top plate. An opening member;
When the expanding member is pushed down between each tapered surface which is the wall surface of the cone portion of the expanding member and the inner wall surface of the receiving cylinder, the diameter of the receiving cylinder is pressed by the tapered surface. A plurality of wedge members formed on a concavo-convex surface that is arranged so as to be movable outward in the direction, and whose outer surface is capable of biting into the inner wall surface of the steel pipe pile to be chucked, the tip of which is inserted between the inner wall surface of the receiving cylinder When,
A holding member that is provided at a lower portion of the spreading member and holds the wedge member from below;
A guide member that holds each wedge member in a suspended state and guides the movement of the wedge member in the radial direction of the receiving tube;
A steel pipe pile chuck device comprising: a buffer member disposed between the guide member and a top plate lower surface of the receiving tube.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554187A (en) * | 2020-11-18 | 2021-03-26 | 温州竺陌机械科技有限公司 | Steel-pipe pile construction guiding mechanism based on pile foundation engineering |
| JP2022078926A (en) * | 2020-11-13 | 2022-05-25 | 有限会社丸高重量 | Existing pile pulling out device and sediment back-filling device, and existing pile pulling out method and sediment back-filling method |
| JP2022537082A (en) * | 2019-08-29 | 2022-08-23 | サン キム，キュ | Pile lifting chuck and pile lifting device using the same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5961392U (en) * | 1982-10-12 | 1984-04-21 | 株式会社日本製鋼所 | Casing support device |
| EP0311777A1 (en) * | 1987-10-16 | 1989-04-19 | Schmidt, Paul | Driving apparatus |
| JPH0581333U (en) * | 1992-03-31 | 1993-11-05 | 川崎製鉄株式会社 | Jig for rotary penetration of steel pipe pile |
| US6582158B1 (en) * | 1998-03-04 | 2003-06-24 | Ihc Handling Systems | Device and method for transferring vibrating movement to rigid pipe with pipe clamp for vibrator rammer block |
| JP2004107989A (en) * | 2002-09-18 | 2004-04-08 | Nippon Sharyo Seizo Kaisha Ltd | Steel pipe chucking device |
| JP2004124640A (en) * | 2002-10-07 | 2004-04-22 | Kinuta Yoko:Kk | Pile chuck device for pile driver |
| JP2006322150A (en) * | 2005-05-17 | 2006-11-30 | Fuso Kiko Kk | Pliers for foundation pile |
| JP2007169890A (en) * | 2005-12-19 | 2007-07-05 | Inoue Juki:Kk | Chuck device for rotary pressed type steel pipe pile |
| JP2013023887A (en) * | 2011-07-20 | 2013-02-04 | Taisho Kogyo Co Ltd | Columnar object erection machine and self-propelled columnar object erection device |
| JP2017025656A (en) * | 2015-07-27 | 2017-02-02 | 日建商事株式会社 | Holding device for rotating and press-fitting steel pipe and method for holding steel pipe |
-
2017
- 2017-06-12 JP JP2017115099A patent/JP6709431B2/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5961392U (en) * | 1982-10-12 | 1984-04-21 | 株式会社日本製鋼所 | Casing support device |
| EP0311777A1 (en) * | 1987-10-16 | 1989-04-19 | Schmidt, Paul | Driving apparatus |
| JPH01142124A (en) * | 1987-10-16 | 1989-06-05 | Schmidt Paul | Pile driver |
| JPH0581333U (en) * | 1992-03-31 | 1993-11-05 | 川崎製鉄株式会社 | Jig for rotary penetration of steel pipe pile |
| US6582158B1 (en) * | 1998-03-04 | 2003-06-24 | Ihc Handling Systems | Device and method for transferring vibrating movement to rigid pipe with pipe clamp for vibrator rammer block |
| JP2004107989A (en) * | 2002-09-18 | 2004-04-08 | Nippon Sharyo Seizo Kaisha Ltd | Steel pipe chucking device |
| JP2004124640A (en) * | 2002-10-07 | 2004-04-22 | Kinuta Yoko:Kk | Pile chuck device for pile driver |
| JP2006322150A (en) * | 2005-05-17 | 2006-11-30 | Fuso Kiko Kk | Pliers for foundation pile |
| JP2007169890A (en) * | 2005-12-19 | 2007-07-05 | Inoue Juki:Kk | Chuck device for rotary pressed type steel pipe pile |
| JP2013023887A (en) * | 2011-07-20 | 2013-02-04 | Taisho Kogyo Co Ltd | Columnar object erection machine and self-propelled columnar object erection device |
| JP2017025656A (en) * | 2015-07-27 | 2017-02-02 | 日建商事株式会社 | Holding device for rotating and press-fitting steel pipe and method for holding steel pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022537082A (en) * | 2019-08-29 | 2022-08-23 | サン キム，キュ | Pile lifting chuck and pile lifting device using the same |
| JP2022078926A (en) * | 2020-11-13 | 2022-05-25 | 有限会社丸高重量 | Existing pile pulling out device and sediment back-filling device, and existing pile pulling out method and sediment back-filling method |
| JP7153376B2 (en) | 2020-11-13 | 2022-10-14 | 有限会社丸高重量 | Existing pile extraction device and existing pile extraction method |
| JP2022159502A (en) * | 2020-11-13 | 2022-10-17 | 有限会社丸高重量 | Earth and sand backfilling device, earth and sand backfilling construction method and casing |
| JP7414317B2 (en) | 2020-11-13 | 2024-01-16 | 有限会社丸高重量 | Earth and sand backfill equipment and earth and sand backfill method |
| CN112554187A (en) * | 2020-11-18 | 2021-03-26 | 温州竺陌机械科技有限公司 | Steel-pipe pile construction guiding mechanism based on pile foundation engineering |
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|---|---|
| JP6709431B2 (en) | 2020-06-17 |
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