| 摘要 |
A lock (10) is adapted for receipt into an opening (21) defined by a wear member (17) and a support structure (19) in a wear assembly for excavating equipment. The lock comprising a wedge (12) and a spool (14), the wedge having a first end, a second end, a longitudinal axis extending centrally through the first and second ends, and an exterior surface about the longitudinal axis that tapers toward the first end for initial receipt into the opening. The exterior surface of the wedge (12) includes a helical groove (20) and the spool (14) includes a trough (36) having a generally concave surface for receiving the wedge (12), and at least one projection (40) to engage the helical groove (20) on the wedge (12). The wedge (12) and the spool (14) are threadedly coupled together in the opening (21) by the engagement of the projection (40) in the helical groove (20) such that rotation of the wedge (12) about the longitudinal axis translates the wedge in the opening in a direction generally parallel to the longitudinal axis and along the trough (36) of the spool (14) to tighten the lock (10) in the opening (21) thereby causing the wedge (12) and the spool (14) to press the wear member (19) onto the support structure (17) and thereby hold the wear member to the excavating equipment. |
