CAJ | 학술논문

普通齿轮泵流量品质差，径向力大，不宜在熔体挤出对流量品质要求高的场合中应用，提出了一种适用熔体挤出的齿轮泵。应用数学分析和举例进行MTLAB软件模拟的方法，理论分析了熔体齿轮泵在4种不同齿数特征条件下的啮合位移，叠加运动规律和相应条件下流量均匀性；利用MATLAB软件模拟4种齿数条件下，流量脉动系数相应的变化规律。结果表明：当主动轮齿数Z1＝4k时，其流量脉动系数及流量脉动频率与普通外啮合齿轮泵相同；当主动轮齿数Z1＝4k＋1和Z1＝4k＋3时，其流量特性基本相同，并且其流量脉动系数较普通外啮合泵有明显提高，流量脉动频率大约是普通外啮合齿轮泵的8倍；当主动轮齿数Z1＝4k＋2时，其流量脉动系数较普通外啮合泵有明显提高，流量脉动频率大约是普通外啮合齿轮泵的2倍。
보통치륜빙류량품질차，경향력대，불의재용체제출대류량품질요구고적장합중응용，제출료일충괄용용체제출적치륜빙。응용수학분석화거례진행MTLAB연건모의적방법，이론분석료용체치륜빙재4충불동치수특정조건하적교합위이，첩가운동규률화상응조건하류량균균성；이용MATLAB연건모의4충치수조건하，류량맥동계수상응적변화규률。결과표명：당주동륜치수Z1＝4k시，기류량맥동계수급류량맥동빈솔여보통외교합치륜빙상동；당주동륜치수Z1＝4k＋1화Z1＝4k＋3시，기류량특성기본상동，병차기류량맥동계수교보통외교합빙유명현제고，류량맥동빈솔대약시보통외교합치륜빙적8배；당주동륜치수Z1＝4k＋2시，기류량맥동계수교보통외교합빙유명현제고，류량맥동빈솔대약시보통외교합치륜빙적2배。
Due to these problems such as poor flow quality , large radial force , which makes applications of requiring high qual-ity flow characteristics unsuitable such as melt extrusion .A new type of melt gear pump , four idler wheel melt gear pump ,was designed.To analysis the flow characteristics .The strict mathematic analysis and the simulation by MTALBA software were con-ducted.The law of the meshing moment and the stack movement were deeply studied , and the corresponding uniformity of the flow in melt gear pump of four different gear numbers through mathematic deduction was analyzed .The corresponding regulations of four gear numbers about coefficient of flow rate pulsation were simulated with MATLAB software .The result shows:if the num-ber of the gear is 4k(Z1 =4k), its coefficient and frequency of flow rate pulsation are similar with general external gear pump ;when the number of the gear is 4k+1 or 4k+3, their flow characteristics are very closed , and their coefficient of flow rate pulsa-tion achieve obviously improved , and their frequency is 8 times than the general external gear pump ’ s;when the number of the gear is 4k+2, its coefficient of flow rate pulsation achieve obviously improved , and their frequency is 4 times than the general ex-ternal gear pump ’ s.