驅(qū)動(dòng)力選擇
在選擇齒條以後,必須檢查齒輪齒數(shù)是否和所需驅(qū)動(dòng)力和扭矩
相匹配。
此處列出的數(shù)據(jù)只適用於無振動(dòng)、潤滑良好和齒輪高剛性的情
況。
此處齒根應(yīng)力安全係數(shù)取 SF ≥ 1.4,赫茲應(yīng)力安全係數(shù)取
SH ≥ 1.0.
安全係數(shù) SB ≈ 1.0...4.0,由用戶根據(jù)經(jīng)驗(yàn)選取。牽引力 FN 與
齒輪齒數(shù) Z 有關(guān)。
Size selection
After selecting the rack,the gear teeth of the guideway system
must be checked for compatibility with the required drive forces
and torques.
The rack can be supplied precision cut or hardened and ground.
The values given are values for shock-free operation,good
lubrication and stiff arrangement of the pinion.
A safety factor for tooth root stress SF≥1.4 and a safety factor
for Hertzian stress SH≥1.0 is taken in account.
Depending on your experience and application a safety factor
SB≈1.0...4.0 has to be considered.
The tracking force FN is related to the number of teeth Z of the
pinion
T N
T
N
T N
T
N
Selection of drive forces
重載扁導(dǎo)軌齒條驅(qū)動(dòng)力選擇
FN
TN
TN
Fig. ?
Fig. ?
FN
FN
45
上海楓信傳動(dòng)機(jī)械有限公司