Modification of helical cylindrical gears based on meshing dislocation
In order to improve the tooth surface bearing capacity of involute helical cylindrical gear under actual working conditions,the gear pairs with meshing dislocation under the influence of different errors were analyzed and optimized.Under the condition of considering the effects of the whole system stiffness,the system meshing displacement of gear pairs was calculated using software multiple iterations,then the random mesh displacement quantity by the influence of random factors,such as precision and tolerance,was introduced,the dislocation source and the degree of contribution were accurately analyzed,and based on this,the judging method and the amount of micro gear modification were calculated.Four kinds of examples were analyzed,which were,the gear transmission with systematic dislocation,no random dislocation and shape modification;gear pair with system dislocation and modification for system dislocation,without random dislocation;gear pair with both kinds of dislocation but without modification;gear pair with both kinds of dislocations and the modification of both kinds of dislocations were considered.Finally,the meshing quality of the gear pairs in these four examples was compared and analyzed to verify the compensation effect of modification on dislocation.
NETL
NSTL
万方数据
维普
