A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DRILLING DEVICE AND DRILLING METHOD
To provide a drilling device capable of easily and accurately drilling even a portion where a high-strength repair layer is formed on an inner peripheral surface of a sewage conduit, and also saving labor of drilling work, and a drilling method.SOLUTION: A drilling device 100 comprises: an air motor 1 including a rotary shaft 1a for rotating a drilling tool 2; front wheels 3 and 4 which support a front side part of the air motor 1 while being grounded on an inner peripheral surface 31 of an attachment tube 30; a rear support 10 which is disposed in a rear side part of the air motor 1 in a slidable manner in an axial center direction of the rotary shaft 1a; a rear wheel 5 supporting the rear support 10 while being grounded on the inner peripheral surface 31 of the attachment tube 30; multiple first air cylinders 6 for making the air motor 1 and the rear support 10 close/separate in the axial center direction of the rotary shaft 1a; multiple pressing members 8 disposed from the rear support 10 so as to be brought into contact with/separated from the inner peripheral surface 31 of the attachment tube 30; and a second air cylinder 7 for bringing the pressing members 8 into contact with/separating them from the inner peripheral surface 31 of the attachment tube 30.SELECTED DRAWING: Figure 1
【課題】下水道管の内周面に高強度の補修層が形成された部分であっても容易且つ正確に削孔することができ、削孔作業の省力化も可能な削孔装置及び削孔方法を提供する。【解決手段】削孔装置１００は、削孔工具２を回転させる回転軸１ａを有するエアモータ１と、取付管３０の内周面３１に接地した状態でエアモータ１の前方部を支える前方車輪３，４と、エアモータ１の後方部に回転軸１ａの軸心方向にスライド可能に配置された後方支持体１０と、取付管３０の内周面３１に接地した状態で後方支持体１０を支える後方車輪５と、エアモータ１と後方支持体１０を回転軸１ａの軸心方向に沿って接近・離隔させる複数の第１エアシリンダ６と、後方支持体１０から取付管３０の内周面３１に対して接触・離隔可能に配置された複数の押圧部材８と、押圧部材８を取付管３０の内周面３１に対して接触・離隔させる第２エアシリンダ７と、を備えている。【選択図】図１
DRILLING DEVICE AND DRILLING METHOD
To provide a drilling device capable of easily and accurately drilling even a portion where a high-strength repair layer is formed on an inner peripheral surface of a sewage conduit, and also saving labor of drilling work, and a drilling method.SOLUTION: A drilling device 100 comprises: an air motor 1 including a rotary shaft 1a for rotating a drilling tool 2; front wheels 3 and 4 which support a front side part of the air motor 1 while being grounded on an inner peripheral surface 31 of an attachment tube 30; a rear support 10 which is disposed in a rear side part of the air motor 1 in a slidable manner in an axial center direction of the rotary shaft 1a; a rear wheel 5 supporting the rear support 10 while being grounded on the inner peripheral surface 31 of the attachment tube 30; multiple first air cylinders 6 for making the air motor 1 and the rear support 10 close/separate in the axial center direction of the rotary shaft 1a; multiple pressing members 8 disposed from the rear support 10 so as to be brought into contact with/separated from the inner peripheral surface 31 of the attachment tube 30; and a second air cylinder 7 for bringing the pressing members 8 into contact with/separating them from the inner peripheral surface 31 of the attachment tube 30.SELECTED DRAWING: Figure 1
【課題】下水道管の内周面に高強度の補修層が形成された部分であっても容易且つ正確に削孔することができ、削孔作業の省力化も可能な削孔装置及び削孔方法を提供する。【解決手段】削孔装置１００は、削孔工具２を回転させる回転軸１ａを有するエアモータ１と、取付管３０の内周面３１に接地した状態でエアモータ１の前方部を支える前方車輪３，４と、エアモータ１の後方部に回転軸１ａの軸心方向にスライド可能に配置された後方支持体１０と、取付管３０の内周面３１に接地した状態で後方支持体１０を支える後方車輪５と、エアモータ１と後方支持体１０を回転軸１ａの軸心方向に沿って接近・離隔させる複数の第１エアシリンダ６と、後方支持体１０から取付管３０の内周面３１に対して接触・離隔可能に配置された複数の押圧部材８と、押圧部材８を取付管３０の内周面３１に対して接触・離隔させる第２エアシリンダ７と、を備えている。【選択図】図１
DRILLING DEVICE AND DRILLING METHOD
削孔装置及び削孔方法
YAMAUCHI SHUJI (author) / ISHIKAWA KIYOMITSU (author)
2020-02-06
Patent
Electronic Resource
Japanese