A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DEEP FOUNDATION EXCAVATOR
To keep a work posture low during excavation work and improve workability when performing maintenance of a rope supporting an excavation attachment.SOLUTION: A boom 12 of a work device 11 comprises a first boom member 13 having a base end 13D rotatably connected to an upper revolving body 3, and a second boom member 14 rotatably connected to a tip 13F of the first boom member 13. An arm cylinder 21 is provided between the second boom member 14 and an arm 15. A positioning cylinder 20 for rotating the second boom member 14 with respect to the first boom member 13 is provided between the first boom member 13 and the second boom member 14. The second boom member 14 rotates toward the rear side of the first boom member 13 by the positioning cylinder 20 about a connecting portion with the first boom member 13.SELECTED DRAWING: Figure 2
【課題】掘削作業時の作業姿勢を低く抑えることができ、かつ、掘削用アタッチメントを支持するロープのメンテナンスを行うときの作業性を高める。【解決手段】作業装置１１のブーム１２を、基端１３Ｄが上部旋回体３に回動可能に連結された第１ブーム部材１３と、第１ブーム部材１３の先端１３Ｆに回動可能に連結された第２ブーム部材１４とにより構成する。アームシリンダ２１は、第２ブーム部材１４とアーム１５との間に設ける。第１ブーム部材１３と第２ブーム部材１４との間には、第１ブーム部材１３に対して第２ブーム部材１４を回動させるポジショニングシリンダ２０を設ける。第２ブーム部材１４は、ポジショニングシリンダ２０により第１ブーム部材１３との連結部を中心として第１ブーム部材１３の背面側に回動する。【選択図】図２
DEEP FOUNDATION EXCAVATOR
To keep a work posture low during excavation work and improve workability when performing maintenance of a rope supporting an excavation attachment.SOLUTION: A boom 12 of a work device 11 comprises a first boom member 13 having a base end 13D rotatably connected to an upper revolving body 3, and a second boom member 14 rotatably connected to a tip 13F of the first boom member 13. An arm cylinder 21 is provided between the second boom member 14 and an arm 15. A positioning cylinder 20 for rotating the second boom member 14 with respect to the first boom member 13 is provided between the first boom member 13 and the second boom member 14. The second boom member 14 rotates toward the rear side of the first boom member 13 by the positioning cylinder 20 about a connecting portion with the first boom member 13.SELECTED DRAWING: Figure 2
【課題】掘削作業時の作業姿勢を低く抑えることができ、かつ、掘削用アタッチメントを支持するロープのメンテナンスを行うときの作業性を高める。【解決手段】作業装置１１のブーム１２を、基端１３Ｄが上部旋回体３に回動可能に連結された第１ブーム部材１３と、第１ブーム部材１３の先端１３Ｆに回動可能に連結された第２ブーム部材１４とにより構成する。アームシリンダ２１は、第２ブーム部材１４とアーム１５との間に設ける。第１ブーム部材１３と第２ブーム部材１４との間には、第１ブーム部材１３に対して第２ブーム部材１４を回動させるポジショニングシリンダ２０を設ける。第２ブーム部材１４は、ポジショニングシリンダ２０により第１ブーム部材１３との連結部を中心として第１ブーム部材１３の背面側に回動する。【選択図】図２
DEEP FOUNDATION EXCAVATOR
深礎掘削機
ISOGAI KASUMI (author) / INAMOTO AKIRA (author) / SEKI SEIJI (author)
2023-01-18
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING