ECCENTRIC MULTIAXIAL SHIELD EXCAVATOR

• Main Authors: HANAOKA TAIJI, ISHIGURO KENJI
• Format: Patent
• Language: English; Japanese
• Published: 17.06.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

To provide an eccentric multiaxial shield excavator in which a cutter head can be smoothly rotated by surely synchronizing driving of multiple drive shafts.SOLUTION: An eccentric multiaxial shield excavator 100 comprises: one cutter head 2; multiple drive shafts 3 that include driving gears 31 respectively and rotate around each center axis α extending in an excavation direction; eccentric bodies 4 that are provided one by one on each of the multiple drive shafts 3 and each of which is supported rotatably by the drive shaft 3 at an eccentric position relative to the center axis α of the drive shaft 3 so as to rotate around the center axis α of the drive shaft 3, and support the cutter head 2; and an intermediate gear 5 that makes driving of the multiple drive shafts 3 synchronize by engaging with the driving gears 31 of the multiple drive shafts 3.SELECTED DRAWING: Figure 1 【課題】複数の駆動軸の駆動を確実に同期させることによって、カッタヘッドを円滑に回転させることが可能な偏心多軸シールド掘進機を提供する。【解決手段】この偏心多軸シールド掘進機１００は、１つのカッタヘッド２と、各々が駆動ギヤ３１を含み、掘進方向に延びる各中心軸線α回りに回転する複数の駆動軸３と、複数の駆動軸３毎に１つずつ設けられ、駆動軸３の中心軸線αの周りを公転するように、駆動軸３の中心軸線αに対して偏心した位置で回転可能に駆動軸３に支持されるとともに、カッタヘッド２を支持する偏心体４と、複数の駆動軸３の駆動ギヤ３１に噛み合うことにより、複数の駆動軸３の駆動を同期させる中間ギヤ５とを備える。【選択図】図１