CONVEYANCE DEVICE

PROBLEM TO BE SOLVED: To effectively prevent a change in a connecting position for excavation muck conveyed to an extension belt conveyer from a slide conveyer belt.SOLUTION: A conveyance device includes: a first belt conveyor 50 that includes a first belt 54 for conveying excavation muck from a pit face side and moves toward the pit face side as excavation progresses; a second belt conveyor 20 that includes a second belt 24 for conveying the excavation muck transferred from the first belt 54 toward a pit mouth side, and a carrier roller 35 supporting a rear surface on a carrier side 24A of the second belt 24; and a belt connection part 100 provided on an edge in a conveyance direction of the first belt conveyor 50 for having the excavation muck fall on a top surface on the carrier side 24A of the second belt 24 from the first belt 54, the belt connection part moving toward the pit face side as excavation progresses. The belt connection part 100 has a belt pull-up/support part 120 that supports and pulls up the rear surface on the carrier side 24A of the second belt 24 at a position above the carrier roller 35, while the second belt passes below a turned-back end of the first belt 54.SELECTED DRAWING: Figure 5 【課題】スライドコンベヤベルトから延伸ベルトコンベヤに移送される掘削ズリの乗継位置の変化を効果的に防止する。【解決手段】切羽側から掘削ズリを搬送する第１ベルト５４を含み、掘進に伴い切羽側に移動する第１ベルトコンベヤ５０と、第１ベルト５４から移送される掘削ズリを坑口側に搬送する第２ベルト２４と、第２ベルト２４のキャリア側２４Ａ裏面を支持するキャリアローラ３５とを含む第２ベルトコンベヤ２０と、第１ベルトコンベヤ５０の搬送方向側の端部に設けられると共に第１ベルト５４から第２ベルト２４のキャリア側２４Ａ上面に掘削ズリを落下させ、掘進に伴い切羽側に移動するベルト乗継部１００とを備え、ベルト乗継部１００は、第１ベルト５４の折り返し端下方を通過する第２ベルト２４のキャリア側２４Ａ裏面をキャリアローラ３５よりも上方で支持して引き上げるベルト引上げ支持部１２０を有する。【選択図】図５