EVALUATE ERROR IN TRANSMISSION RATION OF ENVELOPE CHAIN AND INDEXING CHAIN IN SPIRAL-BEVEL-GEAR MANUFACTURING MACHINE GLEASON ZFTKK250X5

Abstract

The paper presents the method which evaluates the gear ratio error of
envelope chain and indexing chain spiral-bevel-gear generator ZFTKK250X5 in the
Gleason system. The elements in power transmission chains are gear transmitters,
which are subject to kinetic errors, pitch errors, cumulative pitch errors, etc...
Therefore, the errors of these chains will be the sum of the errors of the elements in
the chains during machining, so when we process the Gleason gear system, its
quality is directly affected by these errors. To evaluate these above errors, it is
necessary to determine how many degrees of the gear pairs in the chains during the
geometry and the gradation process, thereby calculating the errors of each pair of
gears in the chain and the gear ratio of the elements. Finally, multiplying them
together gives us the gear ratios of the chain when it comes to the errors. From
there, the authors get the gear ratio error of the chains.