| 摘要 |
<p>The invention is a milling element (1; 20; 50) for milling drums (T) of ground surface scarifiers, comprising: a support (2; 22; 52) suited to be applied to the outside of the cylindrical core (A) of the drum (T) and provided with a housing (3; 21) that accommodates a tool holder (4; 23; 53); a milling tool (5) provided with a tang (5a) suited to be removably fitted in a hole (7) made in the tool holder (4; 23; 53); connection means (10) suited to removably connect the tool holder (4; 23; 53) to the support (2; 22; 52). The connection means comprise: two opposing surfaces (11, 12; 24, 25; 54, 61) that delimit the housing (3; 21) and converge towards each other and towards the bottom surface (6; 27) of the housing (3; 21), with which they are connected to define an essentially U-shaped profile for the housing (3; 21); two opposing counter surfaces (13, 14; 34, 35; 60, 62) created in the tool holder (4; 23; 53) that converge towards one end (8; 36) of the tool holder. Means (15, 16, 17, 18; 41, 42, 37, 38; 54; 60) for containing the tool holder (4; 23; 53) in the housing (3; 21) are also provided. Each surface (11, 12; 24, 25; 54, 61) is arranged against a corresponding counter surface (13, 14; 34, 35; 60, 62) when the tool holder (4; 23; 53) is fitted in the housing (3; 21) with its end (8; 36) facing the bottom surface (6; 27) of the housing.</p> |
