展開(kāi)式二級(jí)斜齒圓柱齒輪減速器設(shè)計(jì)【帶式輸送機(jī)傳動(dòng)裝置】【F=2.8kN V=0.8ms D=300mm】,帶式輸送機(jī)傳動(dòng)裝置,F=2.8kN V=0.8ms D=300mm,展開(kāi)式二級(jí)斜齒圓柱齒輪減速器設(shè)計(jì)【帶式輸送機(jī)傳動(dòng)裝置】【F=2.8kN,V=0.8ms,D=300mm】,展開(kāi)式,二級(jí),圓柱齒輪,減速器 內(nèi)蒙古工業(yè)大學(xué)學(xué)報(bào)JOURNAL OF INNER MONGOLIA第 22 卷第 2 期POL YT ECHNIC UNIVERSIT YVol. 22No. 2 2003文章編號(hào): 1001- 5167( 2003)02-0153-04Inner Mongolia Polytechnic UniversityDepartment of Mechanical EngineeringT he 11thSino-Polish Conference on CAD in MachineryHuhhot, China, October 2002ZHANG YeCollege of Mechanical Engineering, Inner Mongolia Polytechnic University, Huhhot, 010062THREE-DIMENSIONAL ENT ITY MODEL AND MOVEMENTEMULATION OF REDUCER BASED ON UG PLANEAbstract: This article introduces to modeling for reducer with three-dimensional entity by MOSWLING module in the latest edition UGNX of UG software, which mainly concern with model of the maincomponents such as shaft, gear, gear shaft, mount and cover andcomplete corresponding assembly. Then, carry out movement emula-tion for all the assembly with MOT ION module.Keywords: UG; three-dimensional entity model; reducer; emulationUG is three-dimensional entity model plane which integrates CAD/ CAM/ CAE, and is computeraided design, analysis and manufacture software which is used widely in the world. There are severalproblems should be paid attention to in this article: involutes tooth profile model of gear teeth, hol-lowing operation of cover when modeling, location between gear shaft and gear when assembling.1Plotting involutes tooth profile of gear teethInvolutes tooth profile of gear teeth can be plotted with expression in UG 3. On the otherhand, this article program for involutes tooth profile of gear teeth with VC+ + 6. 0 and save coordi-nate value of tooth profile surface in corresponding data file, and plot involutes tooth profile of gearteeth using read point from file in spline with the defined point.Polar coordinates parameter equation of involutes is 4rk=rbcos?k?k= inv?k= tg?k- ?kmake rkand?kgo toxk= rkcos?kyk= rksin?kand spreadwithtrigonometric expressions,canget:xk= rb cos( ?k+ ?k) + ( ?k+ ?k) sin( ?k+ ?k) yk= rb sin( ?k+ ?k) - ( ?k+ ?k) cos( ?k+ ?k) Here rkis radius of involutes tooth profile at K point, ?kis angle of involutes at AK segment, rbis baseradius and ?kis pressure angle at K point.Fig. 1Fig. 2Program with VC+ + 6. 0 and change ( ?k+ ?k) from 0 to 180, can get corresponding xkand yk,and save them in corresponding data file jkx. dat. The results like Fig. 1.InsertCurveSpline in UG main menu , click Through Points button after showing dia-logue, then the system show dialogue Spline Through Points like Fig. 2. Click Points From Filebutton and select before-mentioned data file jkx. dat, can get corresponding involutes like Fig. 3.Fig. 3154內(nèi)蒙古工業(yè)大學(xué)學(xué)報(bào)2003 年Because tooth thickness and tooth spacewidth of reference circle is equality, the opposite centerangle of gear teeth and tooth space is equality, then the opposite center angle of half tooth thickness is123602z, viz90z, here z is number of teeth. XC axis should be rotated ?k+90zand make the above ?kexpression go to, corner is tg?k- ?k+90z. Because of the pressure angle of reference circle of standardgear is 20 , so XC axis should be rotated ( tg20 - 203. 1415926/ 180 ) 3. 1415926180 +90z. Plot aline at XC axis, and select the line as center of mirror and mirror involutes with Existing Line in Mirror Through a Line. T he radius of the angle between tooth profile surface and roof is =c*m1- sin?i, here m is module, ?iis nominal pressure angle, c*is bottom clearance coefficient 2. At last,can get three-dimensional entity model of gear with tripping, cornering and stretching. like Fig. 4.Fig. 4At the same method, can get gear teeth involutes tooth profile of gear shaft.2Some problems should be paid attention to when modeling coverHollow cover after completing the whole model of cover, can get partial entity and cant get theperfect full entity. Here, we use Region in Hollow and change cover into two parts: bearing seat,protuberant level and boarding body which is connect with mount is one part, the other is anotherpart, and hollow separately. The key point is the two parts cannot Unite before hollowing and mustbe United after hollowing. We think the complicated body should be disintegrated into simple bodiesand be hollowed separately, then Unite.155第 2 期ZHANG YeThree-Dimensional Entity M odel and Movement Emulation3Location of gear shaft and gear when assemblingAxial location between gear and gear shaft is not confirmed when they are assembled on mount,so intervening can happen among gear teeth. T here are eight types restriction in UG 1, such as Mate,Align, Angle, Parallel, Perpendicular, Center, Distance and T angent, but they all cannot set upmating relation of two gears. T herefore, it is necessary to plot corresponding location surface duringthe course of entity model of gear shaft and gears. Here we plot centerline of tooth space of gear shaftand centerline of gear teeth and the two lines should be kept parallel each other during the course ofassembly, so the intervening among teeth can be avoided. We keep the above two lines separately par-allel with fringe lines of mount with Parallel restriction relation, so the two lines may be parallelmore. T hereby, gear teeth cannot intervene during the course of engagement.We complete three- dimensional entity model of the main components of reducer. Then, we makemovement emulation for it. First, establish movement analysis case, and gear shaft and bearing insidetrack is link 1, and shaft, gear, fixed-distance loop and corresponding bearing inside track is link2.Then, set up Joint for movement unit, namely set up Revolute between gear shaft and gear separate-ly. At last, set up Compound -Gear of revolute1 and 2. Select Kinematic/ Dynamic Analysis in Ani-mation, and input T ime and Step, we can make movement emulation for reducer.Reference: 1 Guangli Zhang, Peng Zhang, Xue Hong, UG18 BASIC TU TORIAL Beijing: publishing company of Qinghua U ni-versity, 2002. 2 Rongtan Feng, Zhuyou Tian. HOW T O COME TRUE GEAR PAIR THREE- DIMENSIONAL MODEL M .Journal of Beijing mechanical technical college, 15book number4( 2000) 3Chunxiang Dai. EMU LAT ION FOR ENGAGEMENT OF INVOLUT ES GEAR WITH U G SOFT WAR J. Ein-corporation of machine and electricity 2001. 02 4Xikai Huang,Wenwei Zheng.MACHINE PRINCIPLE(No. 6)publishing company of higher education, 1989基于 UG 的減速器三維實(shí)體模型和運(yùn)動(dòng)仿真張燁( 內(nèi)蒙古工業(yè)大學(xué)機(jī)械學(xué)院, 內(nèi)蒙古 呼和浩特 010062)摘要:本文介紹了用UG軟件的最終版UG NX的MOSWLING模塊對(duì)減速器進(jìn)行了三維實(shí)體造型, 主要零件包括軸、 齒輪、 齒輪軸、 下箱體、 上箱體及相應(yīng)的裝配.最后在 UG 的 MOTION 模塊中對(duì)裝配模型進(jìn)行了運(yùn)動(dòng)仿真.關(guān)鍵詞:UG; 三維實(shí)體模型; 減速器; 仿真中圖分類號(hào):T H164文獻(xiàn)標(biāo)識(shí)碼: A156內(nèi)蒙古工業(yè)大學(xué)學(xué)報(bào)2003 年