Quick-change apparatus for engineering machinery and engineering machinery

A quick-change apparatus (1) for an engineering machinery, for realizing the quick releasable locking between a main machine (2) and an operation attachment (3), comprising:

• a main body (10), having a front end and a rear end along a longitudinal direction thereof;
• a locking pin (20), movably arranged at the rear end along the longitudinal direction to releasably lock a rear pin shaft (70) to be connected with the operation attachment (3) between an outer end of the locking pin (20) and the rear end of the main body (10);
• a locking block (40), pivotally arranged at the front end to shift between a released state and a locked state, wherein in the released state, a front pin shaft (60) to be connected with the operation attachment (3) is capable of entering and exiting between the locking block (40) and the front end of the main body (10), and in the locked state, the front pin shaft (60) is locked between the locking block (40) and the front end of the main body (10);
• and
• a driving mechanism (30), located between the locking pin (20) and the locking block (40) and comprising a first driving mechanism (31) and a second driving mechanism (32) which move linearly in opposite directions along the longitudinal direction, wherein the first driving mechanism (31) is slidably connected with the locking block (40) to drive the locking block (40) to pivot, and the second driving mechanism (32) is configured to drive the locking pin (20) so as to be slidable along the longitudinal direction.