Modular transmission

Abstract

The invention relates to a modular transmission that can be combined with a drive module having an output shaft. The modular transmission comprises at least one worm-gear module that can be coupled directly to the drive module output shaft by an insertable clutch and an intermediate flange. The worm shaft of the worm-gear module has clutch toothing complementary to a clutch toothing of the insertable clutch. The modular transmission may also include one or more spur-gear modules interposed between the drive module and worm-gear module. Each spur-gear module is provided with an output-side spur wheel with clutch toothing compatible with the clutch toothing of the worm shaft.

What is claimed is:  
     
         1 . A modular transmission which is combinable with a drive module provided with an output shaft, said modular transmission comprising at least one worm-gear module having a worm shaft, 
 wherein the worm shaft has a clutch toothing;    wherein at least one spur-gear module is capable of being interposed between the drive module and the worm-gear module;    wherein the spur-gear module is provided with an output-side spur wheel; and    wherein the output-side spur wheel has a clutch toothing capable of being brought into engagement with the clutch toothing of the worm shaft.    
     
     
         2 . The modular transmission of  claim 1 , wherein the worm-gear module can be coupled to the output shaft via an insertable clutch and an intermediate flange.  
     
     
         3 . The modular transmission of  claim 2 , wherein the insertable clutch has an internally toothed clutch toothing.  
     
     
         4 . The modular transmission of  claim 1 , wherein the spur-gear module has an input shaft with an externally toothed clutch toothing.  
     
     
         5 . The modular transmission of  claim 1 , wherein the spur-gear module has an input shaft with a pinion produced in one piece with the input shaft.  
     
     
         6 . The modular transmission of  claim 1 , wherein the spur-gear module has a case projection, on which the output-side spur wheel is mounted.  
     
     
         7 . The modular transmission of  claim 1 , wherein the spur wheel has an internally toothed clutch toothing and the worm shaft has an externally toothed clutch toothing.