2K-H型擺線針輪行星傳動(dòng)性能理論的研究.pdf

1、華中科技大學(xué)博士學(xué)位論文2KH型擺線針輪行星傳動(dòng)性能理論的研究姓名：蒙運(yùn)紅申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：吳昌林胡于進(jìn)20071030華中科技大學(xué)博士學(xué)位論文華中科技大學(xué)博士學(xué)位論文IVAbstractTheonetoothdifference2KHcycloidneedleplaarytransmissionmechanismisusedextensivelyfcontinuousadjustmentoftheseat

2、backangleonvariousautomobiles.Themechanismprovidesboththeangleadjustingfunctiontheselflockingfunction.Italsofeaturesacompactstructureeaseofoperationasmalladjustingmomentahighprecisionofadjustmenttheadaptabilitytobeingmot

3、driven.Fthepurposeofseatbackangleadjustmentthetransmissionmechanismmusthavebothpropertiesofasmalladjustingmomentalargeselflockingmoment.Thetworequirementshoweveringeneralconflictwitheachotherabalancebetweenthedrivingadju

4、stingperfmancetheselflockingperfmancehastobecarefullyachieved.Thedissertationisdevotedtobuildanaccuratemathematicalmodelthatdescribesthedependenceofthepositivethenegativeoutputmomentsonthekinematicparametersofthetransmis

5、sionmechanism.Suchamodelprovidesatheeticalbasistodesignoptimizationindertomaximizetheadjustingperfmancewhilemaintainingselflockingperfmance.Anewdefinitionofthebacklashbetweengearteethisproposedfthefirsttime.Thebacklashis

6、definedastheminimumdistancebetweentheteethofapairofgearsinthedirectionoftheircommonnmal.Basedonthisdefinitionamethodispresentedfcalculatingthebacklashesthegeometricalanglesftheeticallymodifiedtoothprofilesftoothprofilesf

7、abricatedbyCNCmachines.Itisusedfcalculatingactualthenumberofteethatmeshing.Themethodistestedwithsimulationsofmeshingstatesisusedtoinvestigatetheeffectsoftoothprofilemodificationsmachiningstepsontheperfmancemeshing.Basedo

8、nthemechanicalanalysisofthe2KHcycloidneedleplaarytransmissionmechanismamodelfthemeshingstatewithbacklashisproposed.Themodelwhichtakesintoaccountofthefrictionbetweentoothprofilesthefrictionatbearingselasticdefmationofmesh