工業(yè)工程aps機(jī)械設(shè)計(jì)

1、關(guān)輪1、The fundamental law of gearing sest the angular velocityratio(角速比) betn the gears of a gear set must remain constantthroughout the mesh （嚙合） . This amounts to the followingrelationship:Z means the number of teeth. D means diameters(mm). N means speed（RPM 即每分鐘轉(zhuǎn)速）。 W means angular velocity (rad/s)

2、齒輪基礎(chǔ)定律表明齒輪組嚙合的角速比應(yīng)為常數(shù)。有下列關(guān)系：，其中，Z 表示齒數(shù)，D 表示直徑，N 表示每分鐘轉(zhuǎn)速。W 為角速度。2、齒頂圓分度圓基圓齒根圓齒頂圓（Addendum circle）Da 表示齒頂圓（Dedendum circle）Df 表示分度圓(pitch circle) D 表示：the axis，and passing through the pitch po.We can use it tocalculate other sizes conveniently.垂直于軸并通過(guò)齒輪嚙合點(diǎn)的圓，可以用它方便算出齒輪其他部分尺寸。基圓（Base circle）：基圓產(chǎn)base ci

3、rcle is somewhat smallernt of thtch circle.This circle produInvolute.The radius of thecircle centered on and pendicular toGear transmisdesign生漸開(kāi)線，基圓半徑小于分度圓。Module(模數(shù))： Perimeter of pitch circle is:d=pz(p 是齒距，pitchof teeth).Then we cnow the diameter of thtch circle.d=p/*z. In order to conveniently ca

4、lculate, we define p/is m.分度圓周長(zhǎng)是 d=pz?？芍侄葓A直徑是 d=p/*z。為了方便計(jì)定義 p/為 m。算，四平面桿DOF（N means建數(shù)目)度）=3n-2Pl-2Phthe amount of active components(N 表示活動(dòng)構(gòu)Pl means the amount of lowPh means the amount of highair（Pl 表示低副數(shù)目）air （Ph 表示高副數(shù)目）lowair（低副）：Two components keep connection by asurface, and they have relative movement.(兩個(gè)構(gòu)件面接觸，并能產(chǎn)生相對(duì)運(yùn)動(dòng))highair（高副）：Two components keep connection bya spot or a line , and they have relative movement.(兩個(gè)構(gòu)件通過(guò)點(diǎn)或線接觸，并能產(chǎn)生相對(duì)運(yùn)動(dòng))the degrees of freedom ofIf mechanismmechanism must be greatern zero, and thenumber