Support disk base for the bearing of an open-end spin rotor

Abstract

Proposed is a support disk base ( 1 ) and a support disk for the bearing of a rotor of an open-end spinning apparatus, whereby on the outer circumference of the support disk base ( 1 ) a support ring ( 8 ) can be installed by force-fit. In accord with the invention, provided on the outer circumference of the support disk base ( 1 ) are grooves ( 3, 4, 5, 6, 7 ) running in the axial direction. Upon the operation of the support disk with the base ( 1 ), the said grooves ( 3, 4, 5, 6, 7 ) increase the holding power of a later circumferentially installed support ring against centrifugal forces. Further, a procedure for the manufacture of the basic form of a support disk is provided.

Claimed is:  
     
         1 . A support disk base for a support disk for the bearing of a rotor of an open-end spinning apparatus, whereby on the outer circumference of the support disk base ( 1 ,  1 ′) a support ring ( 8 ) can be form-fit attached, therein characterized, in that on the outer circumference of the support disk base ( 1 ,  1 ), are placed grooves ( 3 ,  4 ,  5 ,  6 ,  7 ) running in the axial direction.  
     
     
         2 . A support disk base in accord with  claim 1 , therein characterized, in that the support disk base ( 1 ,  1 ′) is constructed in at least two parts from a hub and a removable carrier ring for the support ring ( 8 ).  
     
     
         3 . A support disk base in accord with  claim 1  or  2 , therein characterized, in that the grooves ( 3 ,  4 ,  5 ,  6 ,  7 ) are at least partially open on one or two sides in the axial direction on the side surface of the support disk base.  
     
     
         4 . A support disk base in accord with  claim 1 ,  2  or  3 , therein characterized, in that the groove ( 3 ,  4 ,  5 ,  6 ,  7 ) is back-cut.  
     
     
         5 . A support disk base in accord with  claim 4 , therein characterized, in that the cross section of the groove ( 6 ,  7 ) is essentially triangular or trapezoidal with an apex or side open to the outer circumference of the support disk base ( 1 ,  1 ′).  
     
     
         6 . A support disk base in accord with  claim 4 , therein characterized, in that the cross-section of the groove ( 4 ,  5 ) is essentially round.  
     
     
         7 . A support disk base in accord with  claim 4 , therein characterized, in that the cross-section of the groove ( 3 ) is a polygon with one side open to the outside circumference of the support disk base ( 1 ,  1 ′).  
     
     
         8 . A support disk base in accord with one of the foregoing claims, therein characterized, in that the groove is asymmetric relative to a section plane through said groove, which plane is defined by the axis of the support disk base ( 1 ,  1 ′) and a radius through said groove.  
     
     
         9 . A support disk base in accord with one of the foregoing claims, therein characterized, in that the support disk base ( 1 ,  1 ′) has at least one groove ( 11 ) running circumferentially on the side of the said support disk base.  
     
     
         10 . A support disk base in accord with  claim 9 , therein characterized, in that at least one of the lateral grooves ( 11 ) is continuously circumferential.  
     
     
         11 . A support disk base in accord with one of the foregoing claims, therein characterized, in that at least one groove or recess ( 10 ) is constructed to run about the outer circumference of the support disk base ( 1 ,  1 ′).  
     
     
         12 . A support disk base in accord with  claim 11 , therein characterized, in that at least one of the grooves or recesses running on the outer circumference is interrupted by the axial grooves ( 3 ,  4 ,  5 ,  6 ,  7 ).  
     
     
         13 . A support disk base in accord with  claim 11  or  12 , therein characterized, in that the groove running on the outer circumference is back-cut.  
     
     
         14 . A support disk base in accord with one of the foregoing claims, therein characterized, in that on the outer circumference of the support disk base ( 1 ,  1 ′), a projection ( 9 ) is constructed with a V-shaped cross section, which is at least partly interrupted by the axial grooves ( 3 ,  4 ,  5 ,  6 ,  7 ).  
     
     
         15 . A support disk base for a support disk for the bearing of a rotor of an open end spinning apparatus, wherein a support ring ( 8 ) is mounted in a form-fit manner on an outer circumference of the support disk base ( 1 ,  1 ′), therein characterized, in that on the outer circumference of the support disk base ( 1 ,  1 ′) are constructed protruding, knoblike projections ( 12 ,  13 ,  14 ).  
     
     
         16 . A support disk base in accord with  claim 15 , therein characterized, in that at least a part of the knoblike projections ( 12 ,  13 ,  14 ) in the area of their bases, exhibit a smaller cross-section than in the upper area.  
     
     
         17 . A support disk base in accord with  claim 15  or  16 , therein characterized, in that at least a portion of the knoblike projections are hooklike in design.  
     
     
         18 . A support disk with a support disk base in accord with one of the foregoing claims and a support ring ( 8 ) installed upon the support disk base ( 1 ,  1 ′).  
     
     
         19 . A procedure for the manufacture of a support disk base ( 1 ,  1 ′) or a carrier ring of a support disk of an open-end spinning apparatus, the procedure having the steps of: 
 the extruding of a support base with at least axial running grooves on the outer circumference of the said support base, and  
 the cutting to length of the extruded material to the thickness of, or approximately to the thickness of, the support disk base ( 1 ,  1 ′) or of the carrier ring.  
 
     
     
         20 . A procedure in accord with  claim 19 , characterized by the step: abrading, machining, compression molding, and/or milling of the lateral circumference and/or on the groves ( 11 ,  10 ) on the outer circumference.  
     
     
         21 . A procedure in accord with  claim 19  or  20 , therein characterized, in that the shape of the axially running grooves, the lateral grooves running on the circumference, and/or the grooves running on the outside circumference is established in accord with one of the  claims 1  to  16 .  
     
     
         22 . A procedure in accord with  claim 19 ,  20 , or  21 , therein characterized, in that the surface of the support disk base ( 1 ,  1 ′), at least in the area of the outer circumference, is roughened, especially by means of sand blasting.