Mechanical system comprising a device for connection between a wearing part and the support thereof, heavy-construction machine bucket, and method for implementing said system

摘要

A mechanical system (1) includes a support (10), a tooth (20) and a device (30) for interconnecting the two components. The device includes an elastic sheath (40) having an inner cavity (48) and an outer wall (44) adjustable in a housing (14) of the support, and a key (50) adjustable in the cavity. The sheath and the key can be rotated together in a fixed manner about a pivoting axis in the housing, between an insertion configuration and a locking configuration, thereby forming a coupling connection between the tooth and the support. The inner cavity extends into the sheath along an eccentric axis that is radically staggered in relation to the pivoting axis. The inner cavity is provided with elements for rotatably securing to driving elements (59) arranged on the key. A heavy-construction machine bucket including such a system, and a method for implementing such a system are also described.