发明名称 Rope shovel
摘要 A mining shovel includes a base for supporting the shovel on a support surface, a boom, an elongated member movably coupled to the boom, and a support member. The boom includes a first end pivotably coupled to the base and a second end positioned away from the base, the boom being pivotable about a boom pivot axis extending transversely to the boom proximate the first end. The elongated member is pivotable about a shaft positioned between the first end and the second end of the boom. The support member biases the boom against pivoting movement about the boom pivot axis, and the support member extends between the base and the boom.
申请公布号 US9297140(B2) 申请公布日期 2016.03.29
申请号 US201314033423 申请日期 2013.09.20
申请人 Harnischfeger Technologies, Inc. 发明人 Hren William J.;Hutsick James M.;Severson Patrick M.;Haworth Samuel F.;Knuth Jason
分类号 E02F3/30;E02F9/14;E21C27/30;E02F3/38 主分类号 E02F3/30
代理机构 Michael Best & Friedrich LLP 代理人 Michael Best & Friedrich LLP
主权项 1. A mining shovel comprising: a base including a first portion and a second portion, the first portion including tracks for supporting the shovel on a support surface, the second portion being rotatable relative to the first portion about an axis of rotation; a boom including a first end pivotably coupled to the second portion of the base and a second end positioned away from the base, the boom being pivotable about a pivot axis extending transversely to the boom proximate the first end; an elongated member movably coupled to the boom, the elongated member being pivotable relative to the boom and supported with respect to the boom between the first end and the second end of the boom; and a support member for biasing the boom against pivoting movement about the pivot axis in a first direction and in a second direction opposite the first direction, the support member including a pair of struts, each strut positioned on an opposite side of the axis of rotation and including a first end coupled to the second portion of the base and a second end coupled to the boom.
地址 Wilmington DE US