JP5086856B2 - Pile driver - Google Patents

Pile driver Download PDF

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JP5086856B2
JP5086856B2 JP2008071490A JP2008071490A JP5086856B2 JP 5086856 B2 JP5086856 B2 JP 5086856B2 JP 2008071490 A JP2008071490 A JP 2008071490A JP 2008071490 A JP2008071490 A JP 2008071490A JP 5086856 B2 JP5086856 B2 JP 5086856B2
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support shaft
reader
leader
base machine
adapter
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JP2009228220A (en
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茂光 吉田
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Nippon Sharyo Ltd
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Nippon Sharyo Ltd
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Description

本発明は、杭打機に関し、詳しくは、杭打機のベースマシンに起伏可能かつ傾動可能に設けられるリーダの支持構造に関する。   The present invention relates to a pile driving machine, and more particularly to a support structure for a leader that is provided on a base machine of the pile driving machine so as to be able to undulate and tilt.

杭打機は、施工時にリーダの角度調整を行う必要があり、また、運搬時にはリーダをベースマシン上方に倒したりする必要があることから、ベースマシン前部のフロントブラケットに回動可能に設けた車体幅方向の第1支軸によってリーダを車体前後方向に起伏可能に支持するとともに、前記第1支軸の中央を車体前後方向に貫通する第2支軸によってリーダを車体左右方向に傾動可能に支持するようにしている(例えば、特許文献1参照。)。
特開2004−52356号公報
The pile driver needs to adjust the angle of the leader at the time of construction, and because it is necessary to tilt the leader above the base machine at the time of transportation, it is provided rotatably on the front bracket at the front of the base machine The leader is supported by the first support shaft in the vehicle body width direction so as to be able to rise and fall in the vehicle body longitudinal direction, and the leader can be tilted in the vehicle body left and right direction by the second support shaft penetrating the center of the first support shaft in the vehicle body longitudinal direction. It is made to support (for example, refer patent document 1).
JP 2004-52356 A

大型の杭打機では、杭打機を運搬する際に、ベースマシンとリーダとを分解する必要があるが、前述のように第1支軸と第2支軸とによってリーダを支持する構造では、リーダをベースマシンに組み付けるときや取り外すときには、第2支軸が第1支軸を貫通し、第1支軸がリーダの下部を貫通していることから、リーダの下部を分解して各軸を取り外す必要がある。このとき、数多くのボルトを着脱しなければならないため、多大な手間がかかり、作業時間も長くなっていた。また、フロントブラケットの先端部分で、重量物であるリーダをクレーンで吊り上げた状態で行わなければならないことから、作業性も悪いという問題があった。   In a large pile driver, when transporting the pile driver, it is necessary to disassemble the base machine and the leader. However, in the structure in which the leader is supported by the first spindle and the second spindle as described above, When assembling or removing the reader from the base machine, the second support shaft passes through the first support shaft, and the first support shaft passes through the lower portion of the reader. Need to be removed. Since many bolts had to be attached and detached at this time, it took a lot of time and work time was long. In addition, since the leader, which is a heavy object, must be lifted by a crane at the front end portion of the front bracket, there is a problem that workability is poor.

そこで本発明は、互いに直交する第1支軸と第2支軸とによって起伏可能、傾動可能に設けられるリーダをベースマシンに容易に着脱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。   Therefore, an object of the present invention is to provide a pile driving machine capable of easily attaching and detaching a leader that can be raised and lowered by a first support shaft and a second support shaft orthogonal to each other and tiltable. .

上記目的を達成するため、本発明の杭打機は、ベースマシン前部のフロントブラケットに回動可能に設けた車体幅方向の第1支軸と、該第1支軸の中央をリーダの前後方向に貫通してリーダを車体左右方向に傾動可能に支持する第2支軸とを備えた杭打機において、前記第1支軸を前記リーダの軸線に直交する位置に水平方向に配置するとともに、前記フロントブラケットを、前記ベースマシンに設けられるアームと、前記第1支軸に回動可能に設けられるアダプタとに分割形成し、前記アームと前記アダプタとを着脱可能に結合した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 includes a first support shaft in a vehicle body width direction rotatably provided on a front bracket at a front portion of a base machine, and a center of the first support shaft before and after a leader. In a pile driving machine comprising a second spindle that penetrates in the direction and supports the leader so as to be tiltable in the left-right direction of the vehicle body, the first spindle is horizontally arranged at a position orthogonal to the axis of the leader. The front bracket is divided into an arm provided in the base machine and an adapter rotatably provided on the first support shaft, and the arm and the adapter are detachably coupled. Yes.

さらに、本発明の杭打機は、前記第1支軸の前後面に平面部を設けるとともに、前記リーダの第1支軸挿通部に前記第1支軸の平面部に平面で摺接する摺接部材を設けたことを特徴としている。   Further, the pile driving machine according to the present invention is provided with a flat portion on the front and rear surfaces of the first support shaft, and in sliding contact with the first support shaft insertion portion of the leader in a flat contact with the flat portion of the first support shaft. It is characterized by providing a member.

本発明の杭打機によれば、第1支軸と第2支軸とをリーダの下部に組み付けるとともに、リーダの両側から突出する第1支軸の両端部にアダプタをそれぞれ回動可能に取り付けた状態とし、ベースマシンにはアームを取り付けた状態としておくことにより、ベースマシンへのリーダへの着脱は、アダプタとアームとを着脱するだけで行うことができる。アダプタとアームとは、リーダとフロントブラケットとに第1支軸を挿通するためにリーダの下部を分解しなければならない従来の作業に比べて極めて容易に、かつ、短時間で作業することができる。また、第1支軸の前後面に平面部を設け、リーダ側に摺接部材を設けることにより、作業装置からのトルクがリーダに作用しても第1支軸にて確実にトルクを吸収することができる。   According to the pile driving machine of the present invention, the first support shaft and the second support shaft are assembled to the lower part of the leader, and the adapters are attached to both ends of the first support shaft protruding from both sides of the leader, respectively. In this state, the arm is attached to the base machine, so that the base machine can be attached to and detached from the reader simply by attaching and detaching the adapter and the arm. The adapter and the arm can work extremely easily and in a short time compared to the conventional work in which the lower part of the leader must be disassembled in order to insert the first support shaft into the leader and the front bracket. . Further, by providing a flat portion on the front and rear surfaces of the first support shaft and providing a sliding contact member on the reader side, the torque is reliably absorbed by the first support shaft even when torque from the working device acts on the reader. be able to.

図1は本発明の杭打機の一形態例を示す側面図、図2は同じく要部の側面図、図3は同じく要部の正面図、図4は図2のIV−IV断面図、図5は図2のV−V断面図、図6はリーダをベースマシンから分離した状態を示す杭打機の側面図、図7はリーダをベースマシンに組み付けた状態を示す杭打機の側面図である。   1 is a side view showing an embodiment of the pile driving machine of the present invention, FIG. 2 is a side view of the main part, FIG. 3 is a front view of the main part, and FIG. 4 is a sectional view taken along IV-IV in FIG. 5 is a cross-sectional view taken along the line V-V of FIG. 2, FIG. 6 is a side view of the pile driver showing a state where the leader is separated from the base machine, and FIG. 7 is a side view of the pile driver showing a state where the leader is assembled to the base machine. FIG.

この杭打機11は、クローラを備えた走行部12と、該走行部12上に旋回可能に設けられたベースマシン13と、該ベースマシン13の前部に設けられたフロントブラケット14に起伏可能かつ傾動可能に設けられたリーダ15と、該リーダ15を後方から支持する一対の起伏シリンダ16と、ベースマシン13の後部に設けられた後部サポートシリンダ17とを備えており、リーダ15の前面には、ラック18と、その両側の一対のガイドパイプ19とが設けられるとともに、ガイドパイプ19にガイドされて昇降するオーガ駆動装置などの作業装置20が設けられている。また、ベースマシン13の周囲にはアウトリガ13a及びフロントジャッキ13bが設けられている。   The pile driving machine 11 can be raised and lowered on a traveling unit 12 provided with a crawler, a base machine 13 provided on the traveling unit 12 so as to be turnable, and a front bracket 14 provided on a front portion of the base machine 13. And a pair of hoisting cylinders 16 for supporting the reader 15 from the rear, and a rear support cylinder 17 provided at the rear of the base machine 13. A rack 18 and a pair of guide pipes 19 on both sides thereof are provided, and a working device 20 such as an auger driving device that is guided by the guide pipes 19 to move up and down is provided. An outrigger 13 a and a front jack 13 b are provided around the base machine 13.

前記リーダ15の下部には、該リーダ15を、ベースマシン13に対して前後方向に起伏可能かつ左右方向に傾動可能に支持するための第1支軸21と第2支軸22とが設けられている。第1支軸21は、リーダ15の下部に設けられた第1支軸挿通部15aを貫通してリーダ15の軸線に直交する位置に水平方向に配置されており、両端部21a,21aはリーダ15の左右両側にそれぞれ突出している。第2支軸22は、第1支軸21の中央をリーダ15の前後方向に貫通しており、後部側22aがリーダ15の下部後部側部材15bに固着され、前部側22bがリーダ15の下部前部側部材15cを貫通して固定部材23により固定されている。また、中央部が大径の紡錘状に形成された第1支軸21の中央部前面及び後面には平面部21b,21bが設けられるとともに、前記下部後部側部材15b及び下部前部側部材15cには、前記平面部21b,21bに摺接する平面をそれぞれ有する複数の摺接部材24が設けられており、作業装置20からリーダ15に作用するトルクを前記平面部21b,21bと前記摺接部材24とで荷重を受けるようにしている。   A first support shaft 21 and a second support shaft 22 are provided at the lower portion of the reader 15 to support the reader 15 so that it can be raised and lowered in the front-rear direction and tilted in the left-right direction. ing. The first support shaft 21 passes through a first support shaft insertion portion 15a provided in the lower portion of the reader 15, and is disposed in a horizontal direction at a position orthogonal to the axis of the reader 15, and both end portions 21a and 21a are arranged in the reader. It protrudes on the left and right sides of 15 respectively. The second spindle 22 passes through the center of the first spindle 21 in the front-rear direction of the reader 15, the rear side 22 a is fixed to the lower rear side member 15 b of the reader 15, and the front side 22 b is fixed to the reader 15. The lower front portion side member 15 c is penetrated and fixed by the fixing member 23. Further, flat portions 21b and 21b are provided on the front and rear surfaces of the central portion of the first support shaft 21 formed in a spindle shape with a large central portion, and the lower rear side member 15b and the lower front side member 15c. Are provided with a plurality of sliding contact members 24 each having a flat surface in sliding contact with the flat surface portions 21b and 21b, and a torque acting on the reader 15 from the work device 20 is applied to the flat surface portions 21b and 21b and the sliding contact member. 24 to receive a load.

前記フロントブラケット14は、ベースマシン13の前部に設けられる下部側のアーム25と、前記第1支軸21の両端部21aにそれぞれ設けられる上部側のアダプタ26とに分割形成されている。アーム25は、2枚の板材25a、25aをスペーサ25bで所定間隔に結合して形成されており、その下端部は、ベースマシン13に設けたブラケット27に回動ピン27aを介して回動可能に設けられ、後部側に連結された前後調整用シリンダ28により、アーム25の上部側がベースマシン13の前後方向に揺動可能に形成されている。   The front bracket 14 is divided into a lower arm 25 provided at the front portion of the base machine 13 and an upper adapter 26 provided at both end portions 21 a of the first support shaft 21. The arm 25 is formed by joining two plate members 25a and 25a with a spacer 25b at a predetermined interval, and a lower end portion of the arm 25 can be rotated by a bracket 27 provided in the base machine 13 via a rotation pin 27a. The upper side of the arm 25 is formed to be swingable in the front-rear direction of the base machine 13 by a front-rear adjustment cylinder 28 provided on the rear side.

前記アダプタ26の上端部には、ブッシュ26aを介して第1支軸21の両端部21aがそれぞれ回動可能に挿通されて端部固定部材29により抜け止めされている。アーム25とアダプタ26とは、アダプタ26の下部側をアーム25の2枚の板材25a、25a間に挿入し、2箇所ずつ設けられているアダプタ26の通孔26b及びアーム25の通孔25cに連結ピン30をそれぞれ挿通し、該連結ピン30の外端に設けた鍔部30aをアーム外側の板材25aにボルト31で固定することにより連結される。   Both end portions 21a of the first support shaft 21 are rotatably inserted into the upper end portion of the adapter 26 via bushes 26a and are prevented from being detached by end fixing members 29. The arm 25 and the adapter 26 are configured such that the lower side of the adapter 26 is inserted between the two plate members 25a and 25a of the arm 25 and is inserted into the through hole 26b of the adapter 26 and the through hole 25c of the arm 25 that are provided in two places. Each of the connecting pins 30 is inserted, and the flange portion 30a provided at the outer end of the connecting pin 30 is connected to the plate member 25a outside the arm with a bolt 31 to be connected.

分割形成したフロントブラケット14の上部側であるアダプタ26は、第1支軸21及び第2支軸22と共に工場などであらかじめリーダ15の下部に一体的に組み付けた状態とし、分割形成したフロントブラケット14の下部側であるアーム25はベースマシン13に工場などであらかじめ一体的に組み付けた状態としておく。   The adapter 26 on the upper side of the front bracket 14 that is divided and formed is assembled with the first support shaft 21 and the second support shaft 22 together with the lower portion of the reader 15 in advance at the factory or the like. The arm 25 that is the lower side of the base is assembled in advance in the base machine 13 at the factory or the like.

アーム25を設けたベースマシン13にアダプタ26を設けたリーダ15を組み付ける際には、図6に示すように、リーダ15をクレーンで吊り上げ、アーム25の通孔25cとアダプタ26の通孔26bとの位置合わせを行い、両通孔25c,26bを通して連結ピン30をそれぞれ挿通した後、各連結ピン30を2本のボルト31にて固定することにより、ベースマシン13とリーダ15とを組み付けることができる。その後、従来と同様に、ベースマシン13とリーダ15とに起伏シリンダ16を連結したり、油圧ホースを接続するなどの作業を行うことにより、杭打機11を作業可能な状態にすることができる。また、リーダ15をクレーンで保持した状態で、ボルト31及び連結ピン30を抜き取るだけでベースマシン13とリーダ15とを分割することができる。   When assembling the reader 15 provided with the adapter 26 to the base machine 13 provided with the arm 25, as shown in FIG. 6, the reader 15 is lifted by a crane, and the through hole 25c of the arm 25 and the through hole 26b of the adapter 26 are The base machine 13 and the reader 15 can be assembled by fixing the connecting pins 30 with the two bolts 31 after the connecting pins 30 are inserted through the through holes 25c and 26b. it can. Thereafter, as in the prior art, the pile driving machine 11 can be put into a workable state by connecting the hoisting cylinder 16 to the base machine 13 and the leader 15 or connecting a hydraulic hose. . Further, the base machine 13 and the leader 15 can be divided only by removing the bolt 31 and the connecting pin 30 while the leader 15 is held by the crane.

したがって、ベースマシン13にリーダ15を組み付ける際には、4本の連結ピン30と8本のボルト31とを着脱するだけで行うことができるので、リーダ15の下部を分解したり、組み立てたりする手間に比べて作業性を大幅に向上させることができる。これにより、大型の杭打機11における運搬に伴うリーダ15の着脱を短時間で行うことができ、杭打機11の稼働効率を向上させることができる。   Therefore, when the reader 15 is assembled to the base machine 13, it can be performed simply by attaching and detaching the four connecting pins 30 and the eight bolts 31, so that the lower part of the reader 15 is disassembled or assembled. Workability can be greatly improved compared to labor. Thereby, attachment and detachment of the leader 15 accompanying conveyance in the large pile driver 11 can be performed in a short time, and the operating efficiency of the pile driver 11 can be improved.

また、第1支軸21をリーダ15の軸線に直交する位置に配置したことにより、リーダ15の背面で支持する場合に比べて、作業装置20からリーダ15に掛かる曲げモーメントを小さくすることができ、作業装置20を高トルク仕様にすることができる。また、高トルク仕様によって重量が増加した作業装置20を装着しても安定性を高めることができる。さらに、作業装置20からのトルクがリーダ15に作用した場合、平面部21b,21bと摺接部材24との平面の当接によって荷重を確実に受けることができる。   Further, by arranging the first support shaft 21 at a position orthogonal to the axis of the reader 15, it is possible to reduce the bending moment applied to the reader 15 from the work device 20 as compared with the case where the first support shaft 21 is supported on the back surface of the reader 15. The working device 20 can be made to have a high torque specification. Further, the stability can be improved even when the working device 20 whose weight is increased by the high torque specification is attached. Furthermore, when the torque from the working device 20 acts on the reader 15, the load can be reliably received by the flat contact between the flat portions 21 b and 21 b and the sliding contact member 24.

本発明の杭打機の一形態例を示す側面図である。It is a side view which shows one example of a pile driver of this invention. 杭打機の要部を示す側面図である。It is a side view which shows the principal part of a pile driver. 杭打機の要部を示す正面図である。It is a front view which shows the principal part of a pile driver. 図2のIV−IV断面図である。It is IV-IV sectional drawing of FIG. 図2のV−V断面図である。It is VV sectional drawing of FIG. リーダをベースマシンから分離した状態を示す杭打機の側面図である。It is a side view of a pile driver which shows the state where a leader was separated from a base machine. リーダをベースマシンに組み付けた状態を示す杭打機の側面図である。It is a side view of a pile driver which shows the state where a leader was assembled to a base machine.

符号の説明Explanation of symbols

11…杭打機、12…走行部、13…ベースマシン、13a…アウトリガ、13b…フロントジャッキ、14…フロントブラケット、15…リーダ、15a…第1支軸挿通部、15b…下部後部側部材、15c…下部前部側部材、16…起伏シリンダ、17…後部サポートシリンダ、18…ラック、19…ガイドパイプ、20…作業装置、21…第1支軸、21a…両端部、21b…平面部、22…第2支軸、22a…後部側、22b…前部側、23…固定部材、24…摺接部材、25…アーム、25a…板材、25b…スペーサ、25c…通孔、26…アダプタ、26a…ブッシュ、26b…通孔、27…ブラケット、27a…回動ピン、28…前後調整用シリンダ、29…端部固定部材、30…連結ピン、30a…鍔部、31…ボルト   DESCRIPTION OF SYMBOLS 11 ... Pile driver, 12 ... Traveling part, 13 ... Base machine, 13a ... Outrigger, 13b ... Front jack, 14 ... Front bracket, 15 ... Leader, 15a ... First spindle insertion part, 15b ... Lower rear side member, 15c ... lower front side member, 16 ... hoisting cylinder, 17 ... rear support cylinder, 18 ... rack, 19 ... guide pipe, 20 ... working device, 21 ... first support shaft, 21a ... both ends, 21b ... flat part, 22 ... second support shaft, 22a ... rear side, 22b ... front side, 23 ... fixing member, 24 ... sliding contact member, 25 ... arm, 25a ... plate material, 25b ... spacer, 25c ... through hole, 26 ... adapter, 26a ... bush, 26b ... through hole, 27 ... bracket, 27a ... rotating pin, 28 ... cylinder for longitudinal adjustment, 29 ... end fixing member, 30 ... connecting pin, 30a ... collar, 31 ... bolt

Claims (2)

ベースマシン前部のフロントブラケットに回動可能に設けた車体幅方向の第1支軸と、該第1支軸の中央をリーダの前後方向に貫通してリーダを車体左右方向に傾動可能に支持する第2支軸とを備えた杭打機において、前記第1支軸を前記リーダの軸線に直交する位置に水平方向に配置するとともに、前記フロントブラケットを、前記ベースマシンに設けられるアームと、前記第1支軸に回動可能に設けられるアダプタとに分割形成し、前記アームと前記アダプタとを着脱可能に結合したことを特徴とする杭打機。   A first support shaft in the vehicle body width direction rotatably provided on the front bracket at the front part of the base machine, and a center of the first support shaft penetrates in the front-rear direction of the reader so that the reader can tilt in the left-right direction of the vehicle body. In the pile driving machine comprising the second support shaft, the first support shaft is disposed in a horizontal direction at a position orthogonal to the leader axis, and the front bracket is provided on the base machine, A pile driving machine characterized in that it is divided into an adapter provided rotatably on the first support shaft, and the arm and the adapter are detachably coupled. 前記第1支軸の前後面に平面部を設けるとともに、前記リーダの第1支軸挿通部に、前記第1支軸の平面部に平面で摺接する摺接部材を設けたことを特徴とする請求項1記載の杭打機。   A flat surface portion is provided on the front and rear surfaces of the first support shaft, and a sliding contact member that is in sliding contact with the flat surface portion of the first support shaft is provided on the first support shaft insertion portion of the reader. The pile driver according to claim 1.
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JP5912963B2 (en) * 2012-07-24 2016-04-27 日本車輌製造株式会社 Pile driver
JP5912962B2 (en) * 2012-07-24 2016-04-27 日本車輌製造株式会社 Pile driver
JP5988858B2 (en) * 2012-12-18 2016-09-07 日本車輌製造株式会社 Pile driver
KR102082229B1 (en) * 2019-08-14 2020-02-26 신의페트라 주식회사 Pile driver with leader buildable
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