Dalian University of Technology

Yilei Chen

Xiaodong Wang

Siying Ling

Ming Ling

Huiyang Zhang

Liding Wang

Xunlian Wang

A reference-level gear helix artifact for transferring gear helix value. The invention provides a reference-level gear helix artifact with a global symmetrical structure that can be easily obtained by generating method. The centroid point of the artifact passes through the geometric center of the artifact mandrel. The cylinder of the reference-level gear helix artifact is provided with the straight tooth groove, the left-hand tooth groove and the right-hand tooth groove, axial reference torus and radial reference cylinder, fine tooth threads and center holes. Among them, the straight tooth groove includes a pair of involute cylindrical surfaces with opposite 0&#xb0; helix angle, the left-handed tooth groove includes a involute helicoidal surface with 15&#xb0; and a involute helicoidal surface with 30&#xb0;, and the right-hand tooth groove includes a involute helicoidal surface with 15&#xb0; and a involute helicoidal surface with 30&#xb0;.

Reference-level gear helix artifact

A mutual-lapping device and mutual-lapping method for improving processing precision based on the principle of error averaging is proposed. The device including driving friction wheel, driving belt pulley, transmission belt A, connecting rod A, rotation shaft segment A, multi-ball sleeve, mutual-lapping gear A, tension spring, driven friction wheel, pendulum bar of the driven friction wheel, driven belt pulley, transmission belt B, connecting rod B, pressure spring of tensioning pulley, tensioner mechanism, rotation shaft segment B and mutual-lapping gear B. By mutual lapping the high-precision gears, not only the pitch deviation, tooth profile deviation, helix deviation and runout can be reduced synchronously, but also the machining cost is low. Meanwhile, the effect of improving pitch accuracy, profile accuracy, helix accuracy and runout accuracy and reducing surface roughness is remarkable.

Mutual-lapping device for improving gear machining accuracy and the mutual-lapping method thereof

Growing community of inventors

Liaoning, China

Yilei Chen