Bale wrapping device

Abstract

The invention concerns a bale wrapping device comprising a wrapping platform ( 1 ) on which a bale ( 11 ) is rotatable about a horizontal axis ( 9 ) and a support frame ( 23 ), which carries at least one rotating arm ( 17 ) rotatable about a vertical axis ( 19 ) by means of a rotation drive ( 18, 21 ). In order to reduce the overall height of the rotating arm drive, it is proposed according to the invention that the rotation drive ( 18, 21 ) is arranged between the upper side (A) of the support frame ( 23 ) and the under side (B) of the rotating arm ( 17 ).

1 . Bale wrapping device comprising a wrapping platform ( 1 ) on which a bale ( 11 ) is rotatable about a horizontal axis ( 9 ) and a support frame ( 6 ) having at least one rotating arm ( 4 ) rotatable by means of a rotation drive ( 12 ) about a vertical axis ( 5 ), characterised in that the rotation drive ( 18 ,  21 ,  29 ,  32 ,  42 ,  43 ,  45 ) is arranged between the upper side (A) of the support frame ( 23 ,  33 ,  41 ,  46 ) and the under side (B) of the rotating arm ( 17 ,  40 ,  48 ).  
     
     
         2 . Bale wrapping device according to  claim 1 , characterised in that a torque motor ( 45 ) is arranged in the support frame ( 46 ) and its drive shaft ( 49 ) is directly or indirectly and non rotatably linked to the rotating arm ( 48 ).  
     
     
         3 . Bale wrapping device according to  claim 2 , characterised in that a torque motor ( 42 ) is arranged horizontally in the support frame ( 41 ) and is linked to the rotating arm ( 40 ) via a gearbox, particularly an angular gearbox ( 43 ).  
     
     
         4 . Bale wrapping device according to  claim 2 , characterised in that the torque motor ( 21 ) has a gearbox arranged in the rotating arm ( 17 ) downstream of the torque motor ( 21 ).  
     
     
         5 . Bale wrapping device according to  claim 4 , characterised in that the gearbox is a single or multiple-stage planetary gearbox ( 18 ,  31 ,  35 ), comprising a sun gear ( 24 ) on the input side, directly or indirectly and non rotatably linked to the drive shaft of the torque motor ( 21 ,  32 ), one or more planetary gears ( 26 ) mounted in a web ( 25 ,  35 ), and a ring gear ( 27 ,  31 ).  
     
     
         6 . Bale wrapping device according to  claim 5 , characterised in that the web ( 25 ) comprises the fixed member firmly attached to the support frame ( 23 ), while the ring gear ( 27 ) is attached to the rotating arm ( 17 ) and serves as a drive.  
     
     
         7 . Bale wrapping device according to  claim 5 , characterised in that the ring gear ( 31 ) comprises the fixed member firmly attached to the support frame ( 33 ) and the drive takes place via the web ( 35 ) attached to the rotating arm ( 34 ).  
     
     
         8 . Bale wrapping device according to one of the claims  1 ,  2  and  4  to  7 , characterised in that the drive shaft ( 49 ) of the torque motor ( 45 ) and/or the rotation axis ( 19 ) of the sun gear ( 24 ) is arranged coaxially relative to the rotation axis ( 19 ,  47 ) of the rotating arm ( 17 ,  48 ).  
     
     
         9 . Bale wrapping device according to one or more of the preceding claims, characterised in that one or more brake members ( 29 ) are assigned to the torque motor ( 45 ) and/or the gearbox ( 18 ,  43 ) in order to stop and/or hold the rotating arm ( 17 ,  48 ) in predetermined positions.  
     
     
         10 . Bale wrapping device according to one or more of the preceding claims, characterised in that the torque motor ( 21 ,  32 ,  42 ) and the gearbox ( 18 ,  31 ,  43 ) are designed as a modular unit.  
     
     
         11 . Bale wrapping device according to one or more of the preceding claims, characterised in that the torque motor ( 45 ) is a hydraulic or electric motor.