Three shaft adjustment mechanism with integrated overload coupling

Abstract

A three-shaft adjustment mechanism is provided including a drive part which can be connected to a drive shaft in a rotationally fixed manner, a driven part which can be connected to a driven shaft in a rotationally fixed manner and an actuator which can connected to the adjustment shaft in a rotationally fixed manner. A first mechanical stop is arranged between two of the three shafts for defining an adjustment angle between the drive shaft and the driven shaft. According to the invention, an overload coupling integrated into the actuator is provided between the actuator and the drive part or the driven part.

1 . Triple-shaft adjustment mechanism, comprising a drive part that is connected to a drive shaft in a rotationally fixed manner, a driven part that is connected to a driven shaft in a rotationally fixed manner, and an actuator that is connected to an adjustment shaft in a rotationally fixed manner, a first mechanical stop is arranged between two of the three shafts for defining an adjustment angle between the drive shaft and the driven shaft, and an overload coupling integrated into the actuator is provided between the actuator and the drive part or the driven part. 
     
     
         2 . Triple-shaft adjustment mechanism according to  claim 1 , wherein the actuator has spur-gear teeth provided with elasticity in a radial direction as an overload coupling. 
     
     
         3 . Triple-shaft adjustment mechanism according to  claim 2 , wherein it is an the adjustment mechanism includes a shaft generator as the actuator. 
     
     
         4 . Triple-shaft adjustment mechanism according to  claim 3 , wherein the elasticity is provided by an elastic layer between an outer ring and external teeth of the shaft generator. 
     
     
         5 . Triple-shaft adjustment mechanism according to  claim 4 , wherein the elastic layer includes an elastomer. 
     
     
         6 . Triple-shaft adjustment mechanism according to  claim 5 , wherein the elastic layer is a coating or a ring. 
     
     
         7 . Triple-shaft adjustment mechanism according to  claim 4 , wherein the elastic layer is formed by a sheet sleeve with corrugations stamped into said sleeve. 
     
     
         8 . Triple-shaft adjustment mechanism according to  claim 7 , wherein the sheet sleeve is made from spring steel. 
     
     
         9 . Triple-shaft adjustment mechanism according to  claim 3 , wherein the elasticity is formed by elastic rolling bodies of the shaft generator. 
     
     
         10 . Triple-shaft adjustment mechanism according to  claim 3 , wherein the elasticity is formed by an elastic inner ring of the shaft generator.