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AssigneeMaschinenfabrik Reinhausen GmbH
InventorsKlaus Hoepel, Gregor Wilhelm
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The invention relates to an indexing gear train (10) for an on-load tap changer or tap selector of a step transformer, wherein at least one cam disk (18; 20) driven by a crank mechanism (12) interacts with an out-put disk (22) having engagement elements (24) arranged on the output disk, the output disk being connected to a switch shaft (40) in a rotationally fixed manner, wherein the at least one cam disk (18; 20), in interaction with the engagement elements (24) of the output disk (22), triggers an incremental rotation of the switch shaft (40) by a defined increment angle. The engagement elements (24) are formed by rollers (26) rotatably supported on a flat side near the outer circumference of the disk (22). Said rollers roll with a corresponding engagement contour on the outer surface of the cam disk (18; 20), said engagement contour having convex and concave cam sections (30; 42) that regularly follow each other and transition into each other.
An indexing transmission for an on-load tap changer or a tap selector of a tapped transformer, in which at least one cam disk, which is driven by way of a crank transmission, co-operates with a drive output disk with engagement elements arranged thereon, the drive output disk being connected with a switch shaft to be secure against rotation relative thereto, wherein the at least one cam disk in co-operation with the engagement elements of the drive output disk triggers a stepped rotation of the switch shaft through a defined step angle, wherein the engagement elements are formed by rollers, which are rotatably mounted at a flat side in the vicinity of the outer circumference of the disk and which roll on the outer circumferential surface of the cam disk by a corresponding engagement profile with convex and concave cam sections in regular succession and transitioning into one another.
Dependencies are inferred from the claim text.