In the field of parallel compound active tooth transmission
there is relatively little research on the impact of manufacturing errors of key components on transmission accuracy and the compensation relationship between errors. A transmission accuracy analysis model considering manufacturing errors has not yet been established. It is necessary to study this issue and propose some improvement methods.
Methods
2
A transmission accuracy analysis approach that considered the manufacturing errors of key components was developed based on the lumped parameter method and the meshing line increment method. Response surface methodology was employed to investigate the influence of combined errors on transmission accuracy. The sensitivity of individual errors and the compensation relationships among combined errors were also explored.
Results
2
The study shows that manufacturing errors in planetary transmission have a relatively minor effect on system transmission accuracy. In design
precision requirements for planetary transmission can be relaxed. In contrast
manufacturing errors in movable tooth transmission have a significant effect on both system transmission accuracy and the number of engaged teeth. The peak-to-peak transmission error is most sensitive to fixed disk tooth profile error
movable tooth diameter error
and impulse generator tooth profile error. Retainer radial slot dimension error is the next most sensitive
while eccentric error is the least sensitive. A certain degree of compensation exists among movable tooth diameter error
impulse generator tooth profile error
and fixed disk tooth profile error. In engineering practice
appropriate movable teeth can be selected based on tooth profile errors to achieve precision compensation.
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