Motor/pump assembly for use in a braking device

Abstract

A driven-side rotor shaft end of an electric motor is drive-connected to a drive-side pump shaft end of a pump via a coupling piece, in the manner of a cardan joint, in each case by means of the positive axial plug receptacle. The invention provides protection against torsional thrusts and axial vibrations, and a play-free drive by virtue of a conical design of the plug receptacle, at the same time with a mutual axial prestress of the rotor shaft end and pump shaft end.

What is claimed is:  
     
         1 . A motor/pump assembly for protection against torsional thrusts and axial vibrations, said assembly comprising: 
 an electric motor having a driven-side rotor shaft, said shaft having an end plugged with take-up webs;    a pump having a drive-side pump shaft, said shaft having an end plugged with take-up webs;    said rotor shaft plugged end connected to said pump shaft plugged end via an axial positive plug receptacle for receiving the plugged shaft ends, said receptacle including take-up grooves having conical take-up contact surfaces, wherein the connection provides a play-free rotational take-up.    
     
     
         2 . The motor/pump assembly as claimed in  claim 1 , wherein the braking device is an antilock braking device.  
     
     
         3 . A motor/pump assembly for use in a motor vehicle antilock braking device, said assembly comprising: 
 an electric motor having a driven-side rotor shaft, said shaft having an end plugged with take-up webs having conical contact surfaces;    a pump having a drive-side pump shaft, said shaft having an end plugged with take-up webs having conical contact surfaces; and    a coupling device having take-up grooves for receiving said take-up webs for connecting said plugged ends under mutual prestress.    
     
     
         4 . The motor/pump assembly as claimed in  claim 3 , wherein the connection is play-free.  
     
     
         5 . An assembly for use in an antilock braking device to protect against torsional thrusts and axial vibrations, said assembly comprising: 
 an electric motor having a driven-side rotor shaft, said shaft having a plugged end;    a pump having a drive-side pump shaft, said shaft having a plugged end;    a coupling device comprising a plug receptacle for receiving said plugged ends under mutual prestress to provide for play-free rotational take-up.    
     
     
         6 . The motor/pump assembly as claimed in  claim 5 , wherein said plug receptacle comprises radially projecting axially running take-up webs.  
     
     
         7 . The motor/pump assembly as claimed in  claim 5 , wherein said ends are plugged with radially projecting axially running take-up webs.  
     
     
         8 . The motor/pump assembly as claimed in  claim 6 , wherein the take-up webs have a conical contact surface.  
     
     
         9 . The motor/pump assembly of  claim 7 , wherein the take-up webs have a conical contact surface.  
     
     
         10 . A motor/pump assembly for use in a motor vehicle braking device, 
 an electric motor;    an axially following pump driven by the latter;    a drive connection, in the manner of a cardan joint, between the motor and the pump via a coupling piece, in each case with a positive plug receptacle for a driven-side rotor shaft end of the motor and for a drive-side pump shaft end of the pump, and    an axially conical design of the plug receptacle and with a mutual axial prestress of the rotor shaft end and of the pump shaft end with the effect of a play-free rotational take-up.    
     
     
         11 . The motor/pump assembly as claimed in  claim 10 , 
 the plug receptacle having two radially projecting axially running take-up webs on the rotor shaft end and on the pump shaft end, or on the coupling piece, and two mating take-up grooves on the coupling piece or on the shaft ends.    
     
     
         12 . The motor/pump assembly as claimed in  claim 11 , 
 wherein the coupling piece comprises take-up webs and said webs include conical take-up surfaces.    
     
     
         13 . The motor/pump assembly as claimed in  claim 11 , 
 wherein the shaft ends comprise take-up webs, said webs having conical take-up surfaces.    
     
     
         14 . The motor/pump assembly as claimed in  claim 10 , wherein said assembly is adapted for use in a hydraulic pump drive of an ABS braking device for a motor vehicle.