JP6257829B1 - Pile driver - Google Patents

Pile driver Download PDF

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JP6257829B1
JP6257829B1 JP2017115819A JP2017115819A JP6257829B1 JP 6257829 B1 JP6257829 B1 JP 6257829B1 JP 2017115819 A JP2017115819 A JP 2017115819A JP 2017115819 A JP2017115819 A JP 2017115819A JP 6257829 B1 JP6257829 B1 JP 6257829B1
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stay
link member
leader
reader
reinforcing link
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JP2019002160A (en
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村手　徳夫
徳夫 村手
優也 谷田
優也 谷田
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Nippon Sharyo Ltd
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Nippon Sharyo Ltd
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Priority to JP2017115819A priority Critical patent/JP6257829B1/en
Priority to KR1020170106202A priority patent/KR101852728B1/en
Priority to CN201710784495.5A priority patent/CN109083145B/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
    • E02D7/16—Scaffolds or supports for drivers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers

Abstract

【課題】重量を増大させることなくバックステーの座屈強度を向上させ、作業の安全性を確保することができる杭打機を提供する。【解決手段】リーダ１５を支持する一対の２２バックステーは、リーダ１５に連結される上部ステー部材２２ａと、ベースマシン１２に接続される下部ステー部材２２ｂとを、双方のバックステー２２中間部を連結する着脱可能な連結ステー２９を介してそれぞれ回動可能に連結して形成する。連結ステー２９は、上部ステー部材２２ａを回動可能に連結する上部連結部２９ａと、下部ステー部材２２ｂを回動可能に連結する下部連結部２９ｂとを備える。連結ステー２９の一端側とリーダ１５とを回動可能に連結する第１補強リンク部材３２と、連結ステー２９の他端側とリーダ１５とを回動可能に連結する第２補強リンク部材３３とを着脱可能に設ける。【選択図】図４A pile driver capable of improving buckling strength of a backstay without increasing weight and ensuring work safety. A pair of 22 back stays for supporting a leader 15 includes an upper stay member 22a connected to the leader 15 and a lower stay member 22b connected to a base machine 12, and an intermediate portion between both back stays 22. Each is connected so as to be rotatable through a detachable connecting stay 29 to be connected. The connecting stay 29 includes an upper connecting portion 29a that rotatably connects the upper stay member 22a, and a lower connecting portion 29b that rotatably connects the lower stay member 22b. A first reinforcing link member 32 that rotatably connects the one end side of the connecting stay 29 and the reader 15, and a second reinforcing link member 33 that rotatably connects the other end side of the connecting stay 29 and the reader 15. Is detachably provided. [Selection] Figure 4

Description

本発明は、杭打機に関し、詳しくは、ベースマシンに起伏可能に設けたリーダを、左右一対のバックステーにて支持した三点支持式の杭打機に関する。   The present invention relates to a pile driver, and more particularly, to a three-point support type pile driver in which a leader provided on a base machine is supported by a pair of left and right backstays.

三点支持式の杭打機は、ベースマシン前部に起伏可能に設けられるリーダと、該リーダ起立時に、リーダを後方から支持する一対のバックステーとを備えており、バックステーは、上端をリーダに、下端をステーシリンダを介してベースマシンにそれぞれ接続する円筒状の一体部材で形成されていた（例えば、特許文献１参照。）。   The three-point support pile driver includes a leader that can be raised and lowered at the front part of the base machine, and a pair of back stays that support the leader from the rear when the leader is erected. The leader is formed of a cylindrical integral member whose lower end is connected to the base machine via a stay cylinder (see, for example, Patent Document 1).

特開２００７−３１９７７号公報Japanese Patent Laid-Open No. 2007-31977

しかし、大型の杭打機では、リーダが長尺になるとともにバックステーも長尺になり、特許文献１のように、一体部材で形成されたバックステーでは、座屈強度が不足する虞があった。バックステーの座屈強度が不足すると、ベースマシンの上部旋回体を旋回させる際や走行時、さらに、作業装置の押し込み時に、バックステーが撓み、リーダが不安定となり、安全性が損なわれる虞があった。また、バックステーの径を大きくしてバックステーの座屈強度を向上させることが考えられるが、バックステーの径を大きくすると、重量が増加し、作業性能が低下する虞があった。   However, in a large pile driving machine, the leader is long and the back stay is also long. As in Patent Document 1, there is a possibility that buckling strength is insufficient in a back stay formed of an integral member. It was. If the backstay buckling strength is insufficient, the backstay may bend when the upper revolving unit of the base machine is swung or running, and when the work device is pushed in, the leader may become unstable, and safety may be impaired. there were. Further, it is conceivable to increase the backstay diameter by increasing the backstay buckling strength. However, if the backstay diameter is increased, the weight may increase and the work performance may deteriorate.

そこで本発明は、重量を増大させることなくバックステーの座屈強度を向上させ、作業の安全性を確保することができる杭打機を提供することを目的としている。   Accordingly, an object of the present invention is to provide a pile driving machine that can improve the buckling strength of the backstay without increasing the weight and can ensure the safety of work.

上記目的を達成するため、本発明の杭打機は、ベースマシンの前部に設けられたリーダブラケットに起伏可能かつ前後左右に傾動可能に取り付けられるリーダに上端を連結し、下端を前記ベースマシンに接続した一対のバックステーを備えた三点支持式の杭打機において、前記リーダの中間部の前記一対のバックステーと対向する側に、バックステー連結ブラケットが設けられ、前記各バックステーは、前記リーダの上部に上端部が連結される上部ステー部材と、下端部がステーシリンダを介して前記ベースマシンの後部に接続される下部ステー部材とを、双方のバックステーの中間部を連結する着脱可能な連結ステーを介してそれぞれ回動可能に連結して形成され、前記連結ステーの一側部と他側部には、各上部ステー部材の下端をそれぞれ回動可能に連結する上部連結部と、各下部ステー部材の上端をそれぞれ回動可能に連結する下部連結部とをそれぞれ備え、前記連結ステーの一端側と前記リーダとを連結する第１補強リンク部材と、前記連結ステーの他端側と前記リーダとを連結する第２補強リンク部材とを着脱可能に設けるとともに、前記リーダを立設して前記一対のバックステーで支持した組み立て状態にあっては、前記第１補強リンク部材と前記第２補強リンク部材と前記連結ステーとは、前記第１補強リンク部材の一端部が連結する前記連結ステーの一端側の連結部と、前記第２補強リンク部材の一端部が連結する前記連結ステーの他端側の連結部と、前記第１補強リンク部材の他端部及び前記第２補強リンク部材の他端部が連結する前記バックステー連結ブラケットの連結部とを頂点とした三角形状に配置されることを特徴としている。

In order to achieve the above object, the pile driving machine of the present invention has an upper end connected to a leader that can be raised and lowered and tiltable to the front, back, left, and right in a leader bracket provided at the front of the base machine, and the lower end is connected to the base machine. In the three-point support type pile driving machine including a pair of back stays connected to the back stay, a back stay connecting bracket is provided on the side of the intermediate portion of the leader facing the pair of back stays, An upper stay member whose upper end is connected to the upper part of the leader and a lower stay member whose lower end is connected to the rear part of the base machine via a stay cylinder are connected to the intermediate part of both back stays. through a removable joint stay is formed by each pivotally connected, on one side and the other side of the connecting stay has a lower end of each upper stay member it It includes an upper coupling portion pivotally coupled, and a lower connecting portion each rotatably connecting the upper ends of the lower stay member, respectively, the first reinforcement link connecting the said one end side of the joint stay reader there a member, the second reinforcing link member and a detachably provided Rutotomoni for connecting the other end side of the joint stay reader, the assembled state of erected the reader is supported by the pair of back stays The first reinforcing link member, the second reinforcing link member, and the connecting stay include a connecting portion on one end side of the connecting stay connected to one end portion of the first reinforcing link member, and the second reinforcing link. The back stay connecting bracket connected to the connecting portion on the other end side of the connecting stay to which one end portion of the link member is connected, and to the other end portion of the first reinforcing link member and the other end portion of the second reinforcing link member. It is characterized by being arranged a connecting portion of the bets and the triangular apex.

本発明の杭打機によれば、各バックステーを上部ステー部材と下部ステー部材とに分割し、双方のバックステーに亘って架け渡される連結ステーを介して回動可能に連結し、連結ステーの一端側とリーダとを連結する第１補強リンク部材と、連結ステーの他端側とリーダとを連結する第２補強リンク部材とを設けたことにより、重量を増大させることなくバックステーの座屈強度を向上させることができる。また、上部ステー部材と下部ステー部材とは、リーダの前後調整や角度調整を行う際に、リーダの動作に追随してリーダを支持することができることから、作業性を損なうことがない。   According to the pile driver of the present invention, each back stay is divided into an upper stay member and a lower stay member, and is connected rotatably via a connecting stay that spans both back stays. By providing the first reinforcing link member that connects the one end side of the head and the leader, and the second reinforcing link member that connects the other end side of the connecting stay and the leader, the seat of the back stay is not increased. The bending strength can be improved. In addition, the upper stay member and the lower stay member can support the reader following the operation of the reader when adjusting the front and rear and the angle of the reader, so that workability is not impaired.

本発明の一形態例を示す杭打機の側面図である。It is a side view of a pile driver which shows one example of the present invention. 同じく背面図である。It is a back view similarly. 同じく要部側面図である。It is a principal part side view similarly. 図３のIV-IV断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 本発明の一形態例を示す要部背面図である。It is a principal part rear view which shows the example of 1 form of this invention. 同じくリーダとバックステーとを前方に載置した状態の杭打機の平面図である。It is a top view of the pile driver of the state which similarly mounted the leader and the backstay ahead. 同じくリーダとバックステーとを前方に載置した状態の杭打機の側面図である。It is a side view of a pile driver in the state where a leader and a back stay were similarly placed forward. 図７のVIII-VIII断面図である。It is VIII-VIII sectional drawing of FIG. 本発明の一形態例を示す第１補強リンク部材と第２補強リンク部材とを取り付ける過程を示す杭打機の側面図である。It is a side view of a pile driver showing the process of attaching the 1st reinforcement link member and the 2nd reinforcement link member which show one example of the present invention. 同じくリーダとバックステーを起立させる過程を示す杭打機の側面図である。It is a side view of a pile driver which similarly shows the process of raising a leader and a backstay.

図１乃至図５は、本発明の三点支持式の杭打機１１の一形態例を示す図で、この杭打機１１のベースマシン１２は、クローラを備えた下部走行体１３の上部に、旋回ベアリングを介して上部旋回体１４が旋回可能に設けられている。上部旋回体１４は、前部に、リーダ１５及びフロントジャッキ１６，１６が取り付けられるリーダブラケット１７が設けられ、後部に、リアジャッキ１８，１８とステーシリンダ取付部１９とが設けられている。   FIG. 1 to FIG. 5 are views showing an example of a three-point support type pile driver 11 of the present invention. A base machine 12 of the pile driver 11 is provided above an undercarriage 13 having a crawler. The upper swing body 14 is turnably provided via the swing bearing. The upper swing body 14 is provided with a leader bracket 17 to which the leader 15 and the front jacks 16 and 16 are attached at the front part, and with rear jacks 18 and 18 and a stay cylinder attaching part 19 at the rear part.

リーダ１５は、リーダブラケット１７に対して前後左右に傾動可能に取り付けられるリーダ基部材１５ａの上部に、複数のリーダ部材１５ｂを連結して形成されている。リーダ１５の上部には、リーダ１５を保持するリーダホルダ２０が設けられ、リーダホルダ２０の後部には、ステーシリンダ２１，２１を介して上部旋回体１４の後部に接続される左右一対のバックステー２２，２２の先端が連結され、該バックステー２２，２２によってリーダ１５が後方から支持されている。リーダ１５の中間部のバックステー２２，２２と対向する側には、バックステー連結ブラケット２３が設けられ、該バックステー連結ブラケット２３は、左右方向に突出する一対の連結腕２３ａ，２３ａと、外端面両側部からそれぞれ突出し、リーダ組立時に用いられる二股状の組立時連結ブラケット２３ｂ，２３ｂとを備えている。   The reader 15 is formed by connecting a plurality of reader members 15b to an upper portion of a reader base member 15a that is attached to the reader bracket 17 so as to be tiltable in the front / rear and left / right directions. A reader holder 20 that holds the reader 15 is provided on the upper portion of the reader 15, and a pair of left and right back stays connected to the rear portion of the upper swing body 14 via stay cylinders 21, 21 are provided on the rear portion of the reader holder 20. 22 and 22 are connected to each other, and the back stays 22 and 22 support the reader 15 from behind. A backstay connection bracket 23 is provided on the side of the leader 15 opposite to the backstays 22, 22. The backstay connection bracket 23 includes a pair of connection arms 23 a, 23 a protruding in the left-right direction, and an outer side. It is provided with bifurcated connecting brackets 23b and 23b that project from both end portions of the end surface and are used when the reader is assembled.

リーダ１５の頂部には、ワイヤロープ２４が掛け回される複数のガイドシーブを回転可能に備えたトップシーブブロック２５が設けられ、リーダ１５の前面には、各種作業装置、例えば、オーガを駆動するオーガ駆動装置（図示せず）がリーダ１５に沿って昇降可能に設けられる。さらに、トップシーブブロック２５の後部側と上部旋回体１４との間には、作業時に掛かる荷重によってリーダ１５が撓むことを防止するバックテンションロープ２６が設けられている。また、上部旋回体１４の後部には、ガントリ２７が立設され、起伏ウインチ（図示せず）からの起伏ロープ２８ａが、ペンダントロープ２８ｂを介してバックステー連結ブラケット２３に連結されている。   A top sheave block 25 rotatably provided with a plurality of guide sheaves around which the wire rope 24 is wound is provided on the top of the reader 15. Various work devices such as an auger are driven on the front surface of the leader 15. An auger drive device (not shown) is provided along the reader 15 so as to be movable up and down. Further, a back tension rope 26 is provided between the rear side of the top sheave block 25 and the upper swing body 14 to prevent the leader 15 from being bent by a load applied during work. In addition, a gantry 27 is erected at the rear of the upper swing body 14, and a hoisting rope 28a from a hoisting winch (not shown) is connected to the backstay connecting bracket 23 via a pendant rope 28b.

バックステー２２，２２は、リーダホルダ２０に連結される上部ステー部材２２ａ，２２ａと、ステーシリンダ２１，２１を介して上部旋回体１４に連結される下部ステー部材２２ｂ，２２ｂとを、双方のバックステー２２，２２の中間部を連結する連結ステー２９を介して回動可能に連結したもので、上部ステー部材２２ａ，２２ａの下端には、連結ステー２９に連結される上部ステー連結部２２ｃ，２２ｃが、下部ステー部材２２ｂ，２２ｂの上端には、連結ステー２９に連結される下部ステー連結部２２ｄ，２２ｄがそれぞれ形成されている。   The back stays 22 and 22 include upper stay members 22a and 22a connected to the reader holder 20, and lower stay members 22b and 22b connected to the upper swing body 14 via the stay cylinders 21 and 21, respectively. The upper stay members 22a and 22a are connected to the connecting stays 29 at the lower ends of the upper stay members 22a and 22a. However, lower stay connecting portions 22d and 22d connected to the connecting stay 29 are formed at the upper ends of the lower stay members 22b and 22b, respectively.

連結ステー２９は、一側部と他側部に、上部ステー連結部２２ｃ，２２ｃを第１連結ピン３０，３０を介して回動可能にそれぞれ連結する二股状の上部連結部２９ａ，２９ａと、下部ステー連結部２２ｄ，２２ｄを第２連結ピン３１，３１を介して回動可能にそれぞれ連結する二股状の下部連結部２９ｂ，２９ｂとを備えている。また、各下部ステー連結部２２ｄと各第２連結ピン３１とは球面ブッシュ（図示せず）を介して連結され、各下部ステー部材２２ｂは、第２連結ピン３１の径方向及び軸方向に回動可能に連結されている。さらに、連結ステー２９の一端部には、長手方向外側に突出して第１補強リンク部材３２を回動可能に連結する第１補強リンク連結部２９ｃが、他端部には、長手方向外側に突出して第２補強リンク部材３３を回動可能に連結する第２補強リンク連結部２９ｄがそれぞれ形成されている。さらに、連結ステー２９の上部連結部２９ａ，２９ａよりも長手方向中心側には、リーダ方向に突出する内側連結部２９ｅ，２９ｅがそれぞれ設けられている。また、連結ステー２９の長手方向中央部には、組立時にリーダ１５を連結する一対のリーダ連結ブラケット２９ｆ，２９ｆが設けられている。   The connecting stay 29 includes a bifurcated upper connecting portions 29a and 29a that connect the upper stay connecting portions 22c and 22c to the one side and the other side via the first connecting pins 30 and 30, respectively. Bifurcated lower connecting portions 29b and 29b for connecting the lower stay connecting portions 22d and 22d via the second connecting pins 31 and 31 so as to be rotatable are provided. Each lower stay connecting portion 22d and each second connecting pin 31 are connected via a spherical bush (not shown), and each lower stay member 22b rotates in the radial direction and the axial direction of the second connecting pin 31. It is linked movably. Furthermore, a first reinforcing link connecting portion 29c that protrudes outward in the longitudinal direction and rotatably connects the first reinforcing link member 32 to one end of the connecting stay 29 protrudes outward in the longitudinal direction at the other end. A second reinforcing link connecting portion 29d for connecting the second reinforcing link member 33 so as to be rotatable is formed. Further, inner connecting portions 29e and 29e protruding in the leader direction are provided on the center side in the longitudinal direction from the upper connecting portions 29a and 29a of the connecting stay 29, respectively. Further, a pair of reader connection brackets 29f and 29f for connecting the reader 15 at the time of assembly are provided at the center portion in the longitudinal direction of the connection stay 29.

第１補強リンク部材３２は、一端部に、第３連結ピン３４を介して第１補強リンク連結部２９ｃに回動可能に連結される二股状の第１連結部３２ａが、他端部に、第４連結ピン３５を介してバックステー連結ブラケット２３の一方の連結腕２３ａに連結される二股状の第２連結部３２ｂがそれぞれ設けられるとともに、第１連結部３２ａの近傍に、第２補強リンク部材側に突出し、第５連結ピン３６を介して一方の内側連結部２９ｅに連結される第３連結部３２ｃが設けられている。   The first reinforcing link member 32 has a bifurcated first connecting portion 32a rotatably connected to the first reinforcing link connecting portion 29c via the third connecting pin 34 at one end portion. A bifurcated second connecting portion 32b connected to one connecting arm 23a of the backstay connecting bracket 23 via a fourth connecting pin 35 is provided, and a second reinforcing link is provided in the vicinity of the first connecting portion 32a. A third connecting portion 32 c that protrudes toward the member and is connected to one inner connecting portion 29 e via the fifth connecting pin 36 is provided.

第２補強リンク部材３３は、一端部に、第６連結ピン３７を介して第２補強リンク連結部２９ｄに回動可能に連結される二股状の第１連結部３３ａが、他端部に、第７連結ピン３８を介してバックステー連結ブラケット２３の他方の連結腕２３ａに連結される二股状の第２連結部３３ｂがそれぞれ設けられるとともに、第１連結部３３ａの近傍に、第１補強リンク部材側に突出し、第８連結ピン３９を介して他方の内側連結部２９ｅに連結される第３連結部３３ｃが設けられている。   The second reinforcing link member 33 has a bifurcated first connecting portion 33a that is rotatably connected to one end portion of the second reinforcing link connecting portion 29d via a sixth connecting pin 37. A bifurcated second connecting portion 33b connected to the other connecting arm 23a of the backstay connecting bracket 23 via a seventh connecting pin 38 is provided, and a first reinforcing link is provided in the vicinity of the first connecting portion 33a. A third connecting portion 33 c that protrudes toward the member and is connected to the other inner connecting portion 29 e via the eighth connecting pin 39 is provided.

このように形成された連結ステー２９と第１補強リンク部材３２と第２補強リンク部材３３とは、リーダ１５を立設してバックステー２２，２２で支持した組み立て状態で、バックステー２２，２２の中間部でリーダ１５と第３連結ピン３４と第６連結ピン３７とを頂点とした三角形状に配置される。   The connecting stay 29, the first reinforcing link member 32, and the second reinforcing link member 33 formed in this way are in an assembled state in which the leader 15 is erected and supported by the back stays 22, 22. Are arranged in a triangular shape with the leader 15, the third connecting pin 34, and the sixth connecting pin 37 as vertices.

次に、図６乃至図１０に基づいて、リーダ及びバックステーの組み立て順序について説明する。   Next, the assembly order of the leader and the backstay will be described with reference to FIGS.

まず、図６乃至図８に示されるように、リーダ基部材１５ａの上部に、複数のリーダ部材１５ｂを連結し、頂部にトップシーブブロック２５を取り付けたリーダ１５を、ベースマシン１２の前方に載置した状態とする。上部旋回体１４にガントリ２７を立設し、起伏ウインチ（図示せず）からの起伏ロープ２８ａを、ペンダントロープ２８ｂを介してバックステー連結ブラケット２３に連結し、トップシーブブロック２５と上部旋回体１４とにバックテンションロープ２６を連結する。次いで、上部ステー部材２２ａ，２２ａの上端をリーダホルダ２０に連結するとともに、リーダ１５の下部に設けたステー架台４０を左右方向に広げ、該ステー架台４０の上部に、下端部にステーシリンダ２１，２１をそれぞれ取り付けた下部ステー部材２２ｂ，２２ｂを配置する。   First, as shown in FIGS. 6 to 8, the leader 15 having a plurality of leader members 15 b connected to the upper part of the leader base member 15 a and the top sheave block 25 attached to the top is mounted in front of the base machine 12. It is assumed that it is placed. A gantry 27 is erected on the upper swing body 14, and a hoisting rope 28a from a hoisting winch (not shown) is connected to a backstay connecting bracket 23 via a pendant rope 28b. The back tension rope 26 is connected to the two. Next, the upper ends of the upper stay members 22a, 22a are connected to the reader holder 20, and the stay base 40 provided at the lower part of the reader 15 is expanded in the left-right direction. The stay cylinders 21, Lower stay members 22b and 22b to which 21 is attached are arranged.

一方、連結ステー２９の第１補強リンク連結部２９ｃを、第１補強リンク部材３２に設けた二股状の第１連結部３２ａの内側に差し込み、第３連結ピン３４を介して回動可能に連結するとともに、一方の内側連結部２９ｅと第３連結部３２ｃとを第５連結ピン３６を介して回動可能に連結する。さらに、連結ステー２９の第２補強リンク連結部２９ｄを、第２補強リンク部材３３に設けた二股状の第１連結部３３ａの内側に差し込み、第６連結ピン３７を介して回動可能に連結するとともに、他方の内側連結部２９ｅと第３連結部３３ｃとを第８連結ピン３９を介して回動可能に連結し、連結ステー２９と第１補強リンク部材３２と第２補強リンク部材３３とを予め連結しておく。   On the other hand, the first reinforcing link connecting portion 29c of the connecting stay 29 is inserted inside the bifurcated first connecting portion 32a provided on the first reinforcing link member 32 and is connected to be rotatable through the third connecting pin 34. At the same time, one inner connecting portion 29e and the third connecting portion 32c are rotatably connected via the fifth connecting pin 36. Further, the second reinforcing link connecting portion 29 d of the connecting stay 29 is inserted into the inside of the bifurcated first connecting portion 33 a provided on the second reinforcing link member 33, and is rotatably connected via the sixth connecting pin 37. In addition, the other inner connecting portion 29e and the third connecting portion 33c are rotatably connected via an eighth connecting pin 39, and the connecting stay 29, the first reinforcing link member 32, and the second reinforcing link member 33 are connected. Are connected in advance.

リーダ１５に設けた二股状の組立時連結ブラケット２３ｂ，２３ｂの内側に、連結ステー２９のリーダ連結ブラケット２９ｆ，２９ｆをそれぞれ差し込み、ピン４１，４１で連結し、第１補強リンク部材３２と第２補強リンク部材３３とを連結した状態の連結ステー２９を固定する。次いで、連結ステー２９に設けた二股状の上部連結部２９ａ，２９ａの内側に、上部ステー部材２２ａ，２２ａの上部ステー連結部２２ｃ，２２ｃをそれぞれ挿入し、第１連結ピン３０，３０を介してそれぞれ回動可能に連結するとともに、二股状の下部連結部２９ｂ，２９ｂの内側に、下部ステー部材２２ｂ，２２ｂの下部ステー連結部２２ｄ，２２ｄをそれぞれ挿入し、第２連結ピン３１，３１を介してそれぞれ回動可能に連結する。これにより、上部ステー部材２２ａと下部ステー部材２２ｂとが、連結ステー２９を介してそれぞれ回動可能に連結される。   The reader connection brackets 29f and 29f of the connection stay 29 are inserted into the bifurcated connection brackets 23b and 23b provided on the reader 15 and connected by pins 41 and 41, respectively. The connecting stay 29 in a state where the reinforcing link member 33 is connected is fixed. Next, the upper stay connecting portions 22c and 22c of the upper stay members 22a and 22a are inserted inside the bifurcated upper connecting portions 29a and 29a provided on the connecting stay 29, respectively, and the first stay pins 30 and 30 are interposed therebetween. The lower stay connecting parts 22d and 22d of the lower stay members 22b and 22b are inserted inside the bifurcated lower connecting parts 29b and 29b, respectively, and are connected via the second connecting pins 31 and 31, respectively. Are connected to each other in a rotatable manner. Thus, the upper stay member 22a and the lower stay member 22b are connected to each other via the connecting stay 29 so as to be rotatable.

次に、図９に示されるように、ピン４１，４１を抜いて連結ステー２９とリーダ１５との連結を解除し、第１連結ピン３０及び第２連結ピン３１にワイヤロープ４２を掛けて吊り上げ、第１補強リンク部材３２の二股状の第２連結部３２ｂに、バックステー連結ブラケット２３の一方の連結腕２３ａを差し込み、第４連結ピン３５を介して回動可能に連結するとともに、第２補強リンク部材３３の二股状の第２連結部３３ｂに、バックステー連結ブラケット２３の他方の連結腕２３ａを差し込み、第７連結ピン３８を介して回動可能に連結する。   Next, as shown in FIG. 9, the pins 41 and 41 are removed to release the connection between the connection stay 29 and the reader 15, and the first connection pin 30 and the second connection pin 31 are hung by hanging the wire rope 42. The one connecting arm 23a of the backstay connecting bracket 23 is inserted into the bifurcated second connecting portion 32b of the first reinforcing link member 32, and is connected rotatably via the fourth connecting pin 35. The other connecting arm 23a of the backstay connecting bracket 23 is inserted into the bifurcated second connecting portion 33b of the reinforcing link member 33, and is connected rotatably via a seventh connecting pin 38.

次いで、図１０に示されるように、リーダ１５の先端側に架け渡されたワイヤロープ４３と起伏ロープ２８ａとでリーダ１５を引き起こし、リーダ１５を鉛直方向に起立させるとともに、バックステー２２，２２を立ち上げ、下部ステー部材２２ｂ，２２ｂの下端部に取り付けられたステーシリンダ２１，２１を、ステーシリンダ取付部１９，１９にそれぞれ取り付ける。このとき、ステー架台４０の位置や長さを調整しておくことにより、バックステー２２，２２の立ち上げに伴って、ステーシリンダ２１，２１がステーシリンダ取付部１９，１９の近傍に配置され、ステーシリンダ２１，２１を良好に取り付けることができる。なお、ワイヤ掛けや油圧配管の取り回しなどは従来の杭打機と同様に行われ、詳細な説明は省略する。   Next, as shown in FIG. 10, the leader 15 is caused by the wire rope 43 and the undulating rope 28 a spanned on the distal end side of the leader 15, the leader 15 is raised vertically, and the backstays 22, 22 are The stay cylinders 21 and 21 attached to the lower end portions of the lower stay members 22b and 22b are attached to the stay cylinder attaching portions 19 and 19, respectively. At this time, by adjusting the position and length of the stay base 40, the stay cylinders 21 and 21 are disposed in the vicinity of the stay cylinder mounting portions 19 and 19 as the back stays 22 and 22 are started up. The stay cylinders 21 and 21 can be attached satisfactorily. In addition, the wire hooking and the handling of the hydraulic piping are performed in the same manner as a conventional pile driver, and detailed description thereof is omitted.

上述のように形成された杭打機１１は、各バックステー２２を上部ステー部材２２ａと下部ステー部材２２ｂとに分割することにより、従来のステー部材よりもステー部材を短く形成することができる。さらに、上部ステー部材２２ａと下部ステー部材２２ｂとは、連結ステー２９を介して回動可能に連結され、連結ステー２９の一端側とリーダ１５とを連結する第１補強リンク部材３２と、連結ステー２９の他端側とリーダ１５とを連結する第２補強リンク部材３３とを設けたことにより、重量を増大させることなくバックステー２２の座屈強度を向上させることができる。また、上部ステー部材２２ａと下部ステー部材２２ｂとは、リーダ１５の前後調整や角度調整を行う際に、リーダ１５の動作に追随してリーダ１５を支持することができることから、作業性を損なうことがない。さらに、連結ステー２９と第１補強リンク部材３２と第２補強リンク部材３３とは、バックステー２２，２２の中間部で、リーダ１５と第３連結ピン３４と第６連結ピン３７とを頂点とした三角形状に配置されることから、常に安定した状態でリーダ１５を支持することができる。   The pile driving machine 11 formed as described above can form the stay members shorter than the conventional stay members by dividing each back stay 22 into an upper stay member 22a and a lower stay member 22b. Furthermore, the upper stay member 22a and the lower stay member 22b are rotatably connected via a connecting stay 29, a first reinforcing link member 32 that connects one end side of the connecting stay 29 and the leader 15, and a connecting stay. The buckling strength of the backstay 22 can be improved without increasing the weight by providing the second reinforcing link member 33 that connects the other end side of 29 and the reader 15. Further, the upper stay member 22a and the lower stay member 22b can support the reader 15 following the operation of the reader 15 when the front / rear adjustment and the angle adjustment of the reader 15 are performed, thereby impairing workability. There is no. Further, the connecting stay 29, the first reinforcing link member 32, and the second reinforcing link member 33 are intermediate portions of the back stays 22 and 22, and the leader 15, the third connecting pin 34, and the sixth connecting pin 37 are the apexes. Therefore, the reader 15 can be supported in a stable state at all times.

１１…杭打機、１２…ベースマシン、１３…下部走行体、１４…上部旋回体、１５…リーダ、１５ａ…リーダ基部材、１５ｂ…リーダ部材、１６…フロントジャッキ、１７…リーダブラケット、１８…リアジャッキ、１９…ステーシリンダ取付部、２０…リーダホルダ、２１…ステーシリンダ、２２…バックステー、２２ａ…上部ステー部材、２２ｂ…下部ステー部材、２２ｃ…上部ステー連結部、２２ｄ…下部ステー連結部、２３…バックステー連結ブラケット、２３ａ…連結腕、２３ｂ…組立時連結ブラケット、２４…ワイヤロープ、２５…トップシーブブロック、２６…バックテンションロープ、２７…ガントリ、２８ａ…起伏ロープ、２８ｂ…ペンダントロープ、２９…連結ステー、２９ａ…上部連結部、２９ｂ…下部連結部、２９ｃ…第１補強リンク連結部、２９ｄ…第２補強リンク連結部、２９ｅ…内側連結部、２９ｆ…リーダ連結ブラケット、３０…第１連結ピン、３１…第２連結ピン、３２…第１補強リンク部材、３２ａ…第１連結部、３２ｂ…第２連結部、３２ｃ…第３連結部、３３…第２補強リンク部材、３３ａ…第１連結部、３３ｂ…第２連結部、３３ｃ…第３連結部、３４…第３連結ピン、３５…第４連結ピン、３６…第５連結ピン、３７…第６連結ピン、３８…第７連結ピン、３９…第８連結ピン、４０…ステー架台、４１…ピン、４２，４３…ワイヤロープ   DESCRIPTION OF SYMBOLS 11 ... Pile driver, 12 ... Base machine, 13 ... Lower traveling body, 14 ... Upper turning body, 15 ... Leader, 15a ... Leader base member, 15b ... Leader member, 16 ... Front jack, 17 ... Leader bracket, 18 ... Rear jack, 19 ... stay cylinder mounting portion, 20 ... leader holder, 21 ... stay cylinder, 22 ... back stay, 22a ... upper stay member, 22b ... lower stay member, 22c ... upper stay connecting portion, 22d ... lower stay connecting portion , 23 ... Backstay connection bracket, 23a ... Connection arm, 23b ... Assembly bracket, 24 ... Wire rope, 25 ... Top sheave block, 26 ... Back tension rope, 27 ... Gantry, 28a ... Rising rope, 28b ... Pendant rope , 29 ... connection stay, 29 a ... upper connection part, 29 b ... lower connection part, 29 ... 1st reinforcement link connection part, 29d ... 2nd reinforcement link connection part, 29e ... Inner connection part, 29f ... Reader connection bracket, 30 ... 1st connection pin, 31 ... 2nd connection pin, 32 ... 1st reinforcement link member , 32a ... 1st connection part, 32b ... 2nd connection part, 32c ... 3rd connection part, 33 ... 2nd reinforcement link member, 33a ... 1st connection part, 33b ... 2nd connection part, 33c ... 3rd connection part 34 ... 3rd connection pin, 35 ... 4th connection pin, 36 ... 5th connection pin, 37 ... 6th connection pin, 38 ... 7th connection pin, 39 ... 8th connection pin, 40 ... stay mount, 41 ... Pin, 42, 43 ... wire rope

Claims (1)

ベースマシンの前部に設けられたリーダブラケットに起伏可能かつ前後左右に傾動可能に取り付けられるリーダに上端を連結し、下端を前記ベースマシンに接続した一対のバックステーを備えた三点支持式の杭打機において、
前記リーダの中間部の前記一対のバックステーと対向する側に、バックステー連結ブラケットが設けられ、
前記各バックステーは、前記リーダの上部に上端部が連結される上部ステー部材と、下端部がステーシリンダを介して前記ベースマシンの後部に接続される下部ステー部材とを、双方のバックステーの中間部を連結する着脱可能な連結ステーを介してそれぞれ回動可能に連結して形成され、
前記連結ステーの一側部と他側部には、各上部ステー部材の下端をそれぞれ回動可能に連結する上部連結部と、各下部ステー部材の上端をそれぞれ回動可能に連結する下部連結部とをそれぞれ備え、
前記連結ステーの一端側と前記リーダとを連結する第１補強リンク部材の一端部と、前記連結ステーの他端側と前記リーダとを連結する第２補強リンク部材の一端部とを着脱可能に設けるとともに、
前記リーダを立設して前記一対のバックステーで支持した組み立て状態にあっては、前記第１補強リンク部材と前記第２補強リンク部材と前記連結ステーとは、前記第１補強リンク部材の一端部が連結する前記連結ステーの一端側の連結部と、前記第２補強リンク部材の一端部が連結する前記連結ステーの他端側の連結部と、前記第１補強リンク部材の他端部及び前記第２補強リンク部材の他端部が連結する前記バックステー連結ブラケットの連結部とを頂点とした三角形状に配置される
ことを特徴とする杭打機。 A three-point support type equipped with a pair of backstays, the upper end of which is connected to a leader bracket attached to the leader bracket provided at the front portion of the base machine so as to be able to undulate and tiltable to the front, rear, left and right, and the lower end connected to the base machine. In the pile driver,
On the side facing the pair of backstays in the middle part of the reader, a backstay connection bracket is provided,
Each backstay includes an upper stay member whose upper end is coupled to the upper portion of the leader, and a lower stay member whose lower end is connected to the rear portion of the base machine via a stay cylinder. It is formed by being connected to each other via a detachable connecting stay that connects the middle part,
On one side and the other side of the connecting stay , there are an upper connecting portion that rotatably connects the lower ends of the upper stay members, and a lower connecting portion that rotatably connects the upper ends of the lower stay members, respectively. Each with
One end portion of the first reinforcement link member for connecting the reader and one end of the connecting stay, detachably to one end portion of the second reinforcement link member for connecting the other end side of the joint stay reader provided Rutotomoni,
In the assembled state in which the leader is erected and supported by the pair of back stays, the first reinforcing link member, the second reinforcing link member, and the connecting stay are one end of the first reinforcing link member. A connecting portion on one end side of the connecting stay to which the portion connects, a connecting portion on the other end side of the connecting stay to which one end portion of the second reinforcing link member is connected, the other end portion of the first reinforcing link member, and A pile driving machine characterized in that the pile driving machine is arranged in a triangular shape with the connecting portion of the backstay connecting bracket connected to the other end of the second reinforcing link member as a vertex .
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KR101852728B1 (en) 2018-04-27

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