The present invention pertains to a transport or conveying assembly for a harvest recovery machine, the assembly including a rotor, at least one stripper and a crop transport channel that includes at least one guide wall.
DE-C1 42 19 719 discloses a baling press for large bales which includes a transport channel through which the harvested crop material is conveyed from a pick-up to a compression channel by a stuffing rotor. The transport channel includes a guide wall that is formed of webs that extend in the material flow direction and guide plates situated between these webs. The guide plates are able to move against the force of springs in order to prevent peak loads.
DE-C2 195 46 263 discloses a transport device for a round baler, in which the transport channel includes a lower guide wall that can be pivoted transverse to the material flow direction about a downstream bearing. A movement of the guide wall and consequently a widening of the inlet gap occurs when a certain pressure of the harvest material is reached.
According to DE-C1 198 21 591, the bottom of a transport section between a pick-up and the compression chamber of a baler is held in a pivot bearing on its upstream end and adjustable at a downstream end region, namely transverse to the material flow. The adjustment is realized with the aid of a motor and serves for removing obstructions from the transport channel.
According to EP-A1 0 074 533 a guide wall of a transport device of a self-loading forage box can be adjusted with the aid of a lever in order to remove obstructions.
EP-A1 0 339 733 discloses a pivoted wall that makes it possible to open the transport channel in order to make it possible to remove obstructions from the supply channel of a large agricultural baler.
According to DE-A1 198 41 598, a round baler is provided with a cutting mechanism in combination with a rotor. Knives that protrude through a wall and extend into a transport channel are provided opposite the rotor. The wall can be adjusted transverse to the material flow upstream of the rotor in order to change the channel cross section. On the downstream end, the wall can be pivoted downward in order to remove foreign matter from the channel. The harvest material is removed from the rotor at the harvest material inlet by a stationary stripper. The adjustment of the wall takes place in dependence on a torque that is measured on the rotor.
The problem on which the invention is based can be seen in the fact that known measures aim to remove or eliminate rather than prevent obstructions or peak loads or require a significant adjustment of the guide wall.
According to the present invention there is provided an improved arrangement of adjustable components for transporting harvest material from a pickup into a baling chamber.
An object of the invention is to provide components arranged for defining a channel through which harvest material is transported and for effecting the transport of such material from a pick-up to the inlet of an arrangement for further processing, with at least some of the components being adjustable to vary the cross section of the channel in accordance with the amount of crop so as to maintain a constant density.
A more specific object of the invention is to provide transport components, as set forth in the previous object, wherein one of the components is a guide wall which is adjustable transversely to the flow path of the material as it progresses from the pick-up to the inlet.
Another object of the invention is to provide transport components, as set forth in one or more of the previous objects, wherein a tined rotor is provided for acting in conjunction with the guide wall to form a portion of the channel, with the tined rotor being adjustable alone or together with the guide wall in a direction transverse to the flow path of the material as it progresses from the pick-up to the inlet.
Still another object of the invention is to provide transport components, as set forth in one or more of the previous objects, wherein a stripper assembly is associated with the tined rotor and acting in conjunction with the guide wall to form a portion of the channel, with the stripper assembly being adjustable alone or together with the guide wall and/or the rotor in a direction transverse to the flow path of the material as it progresses from the pick-up to the inlet.
These and other objects will become apparent from a reading of the ensuing description together with the appended drawings.