Fixing device for fixing a wear or protection element on a shovel of an earth moving machine and the corresponding fixing system and method

A fixing device for fixing a wear or protection element on a shovel of an earth moving machine comprising a stop with a lower portion suitable for being housed in a housing arranged on a base fixed to said shovel, said stop being formed by a lower half-stop and an upper half-stop, wherein

• in a mounted position, said lower half-stop and said upper half-stop are attached to one another by means of a screw housed in a through hole of said upper half-stop and in a hole of said lower half-stop,
• said lower half-stop has a front face and a rear face, where at least a portion of said front face of the lower half-stop is in said lower portion and faces a front wall of said housing where said lower half-stop is suitable for being introduced in said housing through an opening arranged on the upper face of said wear element,
• said upper half-stop has a front face and a rear face, where said upper half-stop is suitable for being vertically introduced through said opening arranged on the upper face of said wear element,
• where the assembly formed by said lower half-stop and said upper half-stop, in said mounted position, has a plan view at least partially exceeding the perimeter of the plan view of said opening,
• and where, in said mounted position, said upper half-stop is not in contact with said front wall.