| 摘要 |
The present invention is related to an agricultural square baler equipped with a pre-compression chamber (1 ) supplied with crop material by a suitable supply means, and configured to guide crop material from said supply means towards and into the baling chamber (2) where the rectangular bales are formed. At least one of the upper and lower walls (7,6) of the pre-compression chamber is formed by a conveyor belt (10), arranged to move from the supply means towards said baling chamber. The conveyor belt comprises at least two portions (15,16) configured to exert different friction forces on a batch of crop material, so that the high friction portion (16) is capable of moving the batch into the baling chamber, whereas the low friction portion (15) exerts a low force on said batch, thereby preventing material to be prematurely moved towards said baling chamber. The invention is equally related to methods for providing crop material to the pre-compression chamber of a square baler according to the invention. |
