Apparatus and machine for transferring agricultural products, in an agricultural machine

An agricultural machine for formation of a bale, comprising:

• a pick-up drum configured for picking up agricultural products, of the type of grass, grain, maize, hay and forage;
• a compression chamber, configured for the formation of the bale;
• a transfer apparatus, for transferring the agricultural products received from the pick-up drum to the compression chamber, wherein the transfer apparatus includes:
• an impeller rotor, which is configured to be arranged between the pick-up drum and the compression chamber, wherein the impeller rotor rotates about a first rotation axis oriented in a longitudinal direction and includes a plurality of flaps arranged perpendicularly to the longitudinal direction and spaced one with respect to the other along the longitudinal direction, each flap of said plurality of flaps including one or more teeth;
• a frame;
• and
• a deck, facing the impeller rotor and distanced from the impeller rotor along a transverse direction perpendicular to the longitudinal direction, to form a channel for transferring the agricultural products from the pick-up drum to the compression chamber along an advancement path transverse to the longitudinal direction, said channel being delimited by the deck and by the impeller rotor, wherein the impeller rotor is configured to push the agricultural products from the pick-up drum to the compression chamber along the advancement path, wherein the deck has a first portion and a second portion opposite the first portion with respect to the advancement path,
• a first support and a second support, for coupling the deck to the frame, wherein the first support is coupled to first portion of the deck, and the second support includes a crank, wherein the crank is coupled to a second portion of the deck and rotates about a second rotation axis, the second rotation axis being oriented along the longitudinal direction, spaced from the first rotation axis,
• an actuator, connected to the first support and configured to move the deck between a first configuration, corresponding to a minimal transverse cross-section of the channel, and a second configuration, corresponding to a maximal transverse cross-section of the channel,
• wherein the second portion of the deck is at a first vertical height, in the first configuration of the deck, and at a second vertical height, in the second configuration of the deck, the second vertical height being lower than the first vertical height, wherein displacement of the second portion of the deck between the first and the second vertical height is accomplished through rotation of the crank.