Drive, particularly a planetary drive

Abstract

A drive, particularly a planetary drive, comprising a drive shaft and at least one driven shaft which are connected by at least one element. The drive shaft and the driven shaft are mounted opposite the housing parts by bearings. The drive is characterized in that the annular space for receiving at least two sealing elements which are disposed consecutively is formed between the housing parts and the drive shaft and/or driven shaft.

1 . A transmission, in particular an epicyclic transmission, with a drive shaft ( 5 ) and with at least one output shaft ( 15 ) which are connected via at least one element ( 10 ,  11 ,  12 ,  14 ), the drive shaft ( 5 ) and output shaft ( 15 ) being mounted with respect to at least one housing part ( 2 . 1  to  2 . 3 ) via bearings ( 6 ), characterized in that at least one annular space ( 9 ) for the reception of at least two sealing elements ( 20 . 1 ,  20 . 2 ) capable of being inserted axially one behind the other is formed between the at least one housing part ( 2 . 1  to  2 . 3 ) and the drive and/or output shaft ( 5 ,  15 ).  
     
     
         2 . A transmission, in particular an epicyclic transmission, with a drive shaft ( 5 ) and at least one output shaft ( 15 ) which are connected via at least one element ( 10 ,  11 ,  12 ,  14 ), the drive shaft ( 5 ) and output shaft ( 15 ) being mounted with respect to at least one housing part ( 2 . 1  to  2 . 3 ) via bearings ( 6 ), characterized in that at least one annular space ( 9 ) for receiving at least one sealing element ( 20 . 1 ,  20 . 2 ) is formed between the at least one housing part ( 2 . 1  to  2 . 3 ) and the drive and/or output shaft ( 5 ,  15 ), and at least one at least partially peripheral recess ( 21 ) or elevation ( 22 ) is provided for fixing the at least one sealing element ( 20 . 1 ,  20 . 2 ) in an inner surface area ( 8 ) of the housing part ( 2 . 1  to  2 . 3 ).  
     
     
         3 . A transmission, in particular an epicyclic transmission, with a drive shaft ( 5 ) and with at least one output shaft ( 15 ) which are connected via at least one element ( 10 ,  11 ,  12 ,  14 ), the drive shaft ( 5 ) and output shaft ( 15 ) being mounted with respect to at least one housing part ( 2 . 1  to  2 . 3 ) via bearings ( 6 ), characterized in that at least one annular space ( 9 ) for receiving an active sealing element ( 20 . 1 ,  20 . 2 ) and an inactive activatable sealing element ( 20 . 1  or  20 . 2 ) is provided between the at least one housing part ( 2 . 1  to  2 . 3 ) and the drive and/or output shaft ( 5 ,  15 ).  
     
     
         4 . The transmission as claimed in at least one of  claims 1  to  3 , characterized in that the at least one annular space ( 9 ) is formed near the bearing elements ( 6 ) between the drive and/or output shaft ( 5 ,  15 ) and the housing parts ( 2 . 1  to  2 . 3 ).  
     
     
         5 . The transmission as claimed in at least one of  claims 1  to  4 , characterized in that the at least one annular space ( 9 ) is formed inside or outside the bearings ( 6 ).  
     
     
         6 . The transmission as claimed in  claim 5 , characterized in that the at least one annular space ( 9 ) is provided, near the bearings ( 6 ), axially between the at least one transmission part ( 2 . 1  to  2 . 3 ) and the drive and/or output shaft ( 5 ,  15 ).  
     
     
         7 . The transmission as claimed in at least one of  claims 2  to  6 , characterized in that the annular space ( 9 ) is formed in the inner surface area ( 8 ) from a depth (T) which corresponds approximately to a width (B) of two sealing elements ( 20 . 1  or  20 . 2 ) or to a multiple of the width (B) of the sealing elements ( 20 . 1 ,  20 . 2 ).  
     
     
         8 . The transmission as claimed in at least one of  claims 2  to  7 , characterized in that the recess ( 21 ) and/or the elevation ( 22 ) is formed peripherally in the surface area ( 8 ).  
     
     
         9 . The transmission as claimed in at least one of  claims 2  to  8 , characterized in that the recess ( 21 ) and/or the elevation ( 22 ) is/are formed as a peripheral phase.  
     
     
         10 . The transmission as claimed in at least one of  claims 2  to  9 , characterized in that the recess ( 21 ) and/or the elevation ( 22 ) are provided approximately centrally on an outer face of the sealing ring ( 20 . 1  or  20 . 2 ) in the inner surface area ( 8 ) of the housing part ( 2 . 1  to  2 . 3 ).  
     
     
         11 . A transmission, in particular epicyclic transmission, with a drive shaft ( 5 ) and with at least one output shaft ( 15 ) which are connected via at least one element ( 10 ,  11 ,  12 ,  14 ), the drive shaft ( 5 ) and output shaft ( 15 ) being mounted with respect to at least one housing part ( 2 . 1  to  2 . 3 ) via bearings ( 6 ), characterized in that the output shaft ( 15 ) has on the end face a rotary disk-type carrier ( 14 ), in which at least one bolt element ( 12 ) for receiving at least one planet wheel ( 11 ) is positively inserted, in particular pressed.  
     
     
         12 . The transmission as claimed in  claim 11 , characterized in that the bolt element ( 12 ) is designed to be at least partially hollow on the inside, in particular as a hollow shaft.  
     
     
         13 . The transmission as claimed in  claim 11  or  12 , characterized in that the bolt element ( 12 ) has at least one radial bore for the lubrication of the planet wheel ( 11 ).  
     
     
         14 . The transmission as claimed in at least one of  claims 1  to  13 , characterized in that a housing ( 1 ) is composed in three parts of three housing parts ( 2 . 1  to  2 . 3 ), the output shaft ( 15 ) being mounted in a first housing part ( 2 . 1 ), the elements ( 10 ,  11 ,  12 ,  14 ) being mounted in the middle housing part ( 2 . 2 ) and the drive shaft ( 5 ) being mounted in the third housing part ( 2 . 3 ).  
     
     
         15 . The transmission as claimed in at least one of claims  11 - 14 , characterized in that, in the middle housing part ( 2 . 2 ), a toothing ( 16 ) for the meshing of planet wheels ( 11 ) is formed from the housing part ( 2 ) on the inside in the surface area ( 8 ).  
     
     
         16 . The transmission as claimed in at least one of  claims 1  to  15 , characterized in that the middle housing part ( 2 . 2 ) is welded to the first housing part ( 2 . 1 ).  
     
     
         17 . A transmission, in particular an epicyclic transmission, with a drive shaft ( 5 ) and with at least one output shaft ( 15 ) which are connected via at least one element ( 10 ,  11 ,  12 ,  14 ), the drive shaft ( 5 ) and output shaft ( 15 ) being mounted with respect to at least one housing part ( 2 . 1  to  2 . 3 ) via bearings ( 6 ), characterized in that a plurality of permanent magnets ( 26 ) are arranged in at least one housing part ( 2 . 1  to  2 . 3 ).  
     
     
         18 . The transmission as claimed in  claim 17 , characterized in that the permanent magnets ( 26 ) are arranged in blind holes ( 25 ) in the housing part ( 2 . 3 ) on the end face.  
     
     
         19 . The transmission as claimed in  claim 17  or  18 , characterized in that the plurality of permanent magnets ( 26 ) are preferably radially inserted peripherally into blind holes ( 25 ) preferably in one end face ( 24 ) of the housing part ( 2 . 3 ), the end face ( 24 ) being oriented near the elements ( 10 ,  11 ,  12 ,  14 ), in particular near to the rotary disk-type carrier ( 14 ) and near to the planet wheels ( 11 ).  
     
     
         20 . The transmission as claimed in at least one of  claims 17  to  19 , characterized in that the permanent magnets ( 26 ) are inserted into blind holes ( 25 ) and a trough ( 27 ) for the reception of abrasion is formed between the permanent magnets ( 26 ) and the end face ( 24 ) of the housing part ( 2 . 3 ).  
     
     
         21 . The transmission as claimed in at least one  claims 17  to  20 , characterized in that at least one permanent magnet ( 26 ) is assigned to the drive shaft ( 15 ), in particular the rotary disk-type carrier ( 14 ) of the latter.  
     
     
         22 . The transmission as claimed in  claim 21 , characterized in that the at least one permanent magnet ( 26 ) is inserted into an end face ( 30 ) of the rotary disk-type carrier ( 14 ), and a trough ( 27 ) for the reception of ferritic abrasion chips or material is formed between the end face ( 30 ) and the permanent magnet ( 26 ).  
     
     
         23 . The transmission as claimed in  claim 22 , characterized in that the permanent magnet ( 26 ) is inserted into the end face ( 30 ) of the rotary disk-type carrier ( 14 ) axially symmetrically to the mid-axis (M) and engages on the end face over an engagement region of the planet wheels ( 11 ) and spur wheel ( 10 ).  
     
     
         24 . The transmission as claimed in at least one of  claims 1  to  23 , characterized in that the housing part ( 2 . 3 ) is connectable on the end face to an adapter plate ( 4 ) which engages at least partially over the bearing ( 6 ) and holds the latter.  
     
     
         25 . The transmission as claimed in at least one of  claims 1  to  24 , characterized in that two bearings ( 6 ) spaced apart axially via a ring (X 1 ) are arranged in the housing part ( 2 . 1 ), one of the bearings being supported on the element ( 14 ) and the other bearing being tensioned via a shaft nut ( 17 ), the ring (X 1 ) being selectable, as desired, in terms of its width for the coordination of the bearings ( 6 ).