An angular gear arrangement for mower knife driven in an oscillating manner, including a transmission housing, an input shaft, which engages in the interior of the transmission housing, a rotor, which is mounted in the transmission housing to be rotatable about a first axis of rotation by a first bearing, a crankshaft, which engages in the receiving space of the rotor through the receiving opening and is mounted in the receiving space, to be rotatable about a second axis of rotation by a second bearing, a driving element, which is non-rotationally connected to the rotor and mounted so as to be rotatable about the first axis of rotation by at least one third bearing, and support means, which are arranged in the transmission housing and on which the third bearing is axially supported, the support means being releasably fastened to the transmission housing.

Cutter bar (10) of the type applicable to motor mowers or mowers comprising: a supporting bar (11); a lower blade or comb (12) sliding along the major axis with respect to the supporting bar (11) comprising a plurality of lower small blades or teeth (13); an upper blade (14) sliding along the major axis with respect to the supporting bar (11) arranged superimposed on the lower blade or comb and comprising a plurality of upper small blades (15); a control group (16) configured for imparting an opposite reciprocating motion to the blades (12, 14); bladeholder devices (17) acting on the upper surface of the upper blade (14);
wherein the lower small blades or teeth (13) have a thickness or mass greater than the upper small blades (15) and wherein the upper blade (14) comprises an upper supporting strip (20), to which the upper small blades (15) are constrained through rivets (21), the lower cylinder head (22) of the rivets (21) being housed in lowered seats (23) obtained on the upper face of the lower small blades or teeth (13).

An electrically driven agricultural harvesting platform (1) that replaces commonly known platforms that use mechanical power transmission. The use of an electric drive guarantees better efficiency during harvesting processes, which is carried out through an assembly of interconnected elements comprising: a generator (4), a control module (5) that drives and controls additional elements such as motors (8) and a platform sensor (6) that are connected by means of cables (7) that send logical and power information between the different elements.