Abstract: A fastening device for wear elements in earth-moving machines, related to a fastening device of the type that is arranged between two parts, components or elements of an earth-moving machine for the fastening or coupling between both parts or elements. The device has at least one mobile blocking element and autonomous activation mechanism of the mobile blocking element, which enables the mobile blocking element to be activated such that, once the fastening device is inserted in a housing for this purpose in any of the parts to be coupled, the effective coupling is achieved at a certain distance from the fastening device, and even from the machine.

Abstract: A system for fixing an adapter for earth-moving machines, which comprises: a fixing element (1) that fixes an adapter (2) to an edge (10) of a shovel of the earth-moving machine; and a wedge (3) placed in contact between the fixing element (1) and the edge (10), characterized in that the system comprises a plurality of sensors (4) arranged on the wedge (3) or on the fixing element (1) that detect at least one detection element (5) arranged in the other of the fixing element (1) or the wedge (3). It makes it possible continuously to detect and to monitor the position of the wedge relative to the fixing element without the need to check the position of the wedge visually.

Abstract: A system for fixing an adapter for earth-moving machines, which comprises: a fixing element (1) that fixes an adapter (2) to an edge (10) of a shovel of the earth-moving machine; and a wedge (3) placed in contact between the fixing element (1) and the edge (10), characterized in that the system comprises a plurality of sensors (4) arranged on the wedge (3) or on the fixing element (1) that detect at least one detection element (5) arranged in the other of the fixing element (1) or the wedge (3). It makes it possible continuously to detect and to monitor the position of the wedge relative to the fixing element without the need to check the position of the wedge visually.

Abstract: A fastening device for wear elements in earth-moving machines, related to a fastening device of the type that is arranged between two parts, components or elements of an earth-moving machine for the fastening or coupling between both parts or elements. Said device has at least one mobile blocking element and autonomous activation means of the mobile blocking element, which enable the mobile blocking element to be activated such that, once the fastening device is inserted in a housing for this purpose in any of the parts to be coupled, the effective coupling is achieved at a certain distance from the fastening device, and even from the machine.