TusUa haujlwm lub kaum ntse ntsentawm SCISSOR Support Caj npab hauv ib qho chaw ruaj ruaj clissor nqa platform yog nyob ntawmLifting qhov siab, platform loj, thiab caj npab ntevCov. Nws yog lub kaum sab xis ntawm cov pob txha scissor thiab lub voos kab rov tav thaum ua haujlwm.
Cov Ntsiab Lus Tseem Ceeb
θ (theta):Lub kaum sab xis ua haujlwm ntawm cov caj npab scissor.
L:Ntev ntawm ib qho scissor caj npab.
H:Tam sim no lifting qhov siab.
C:Compressed (yam tsawg kawg nkaus) qhov siab.
W:Kev ncua deb ntawm scissor caj npab pivot ntsiab lus ntawm lub hauv paus.
Ua haujlwm lub kaum los suav
Lub Scissor Nqa Mechanism cov ntaub ntawv ib daim duab peb sab yog qhov twg:
Tushypotenuseyog tus scissor caj npab ntev (ll).
Tusrov qab sabyog txoj kev ua kom qhov siab rho tawm lub compressed qhov siab (H-CH - C).
TusNyob ib sabyog ib nrab ntawm platform dav (w / 2w / 2).
Siv trigonometry:
sinθ=h-clacsin {}} \ {} \ fracsin \ sab laug (\}
Piv Txwv Kev Xam
Rau a1m × 1mPlatform:
Xav tias tusscissor caj npab ntevL≈ {{{{{0}}}}}. 71ml \ kwv yees li ntawm 0.71m (xam los ntawm cov lus teb dhau los).
Hlob siab qhov siabC =0. 2mc=0. 2m.
NtawmNtau Lifting qhov siabH {=1. 2mh=1. 2m:
{{{{0}}}} {}}}}} \ arcsin \ sab laug ( \ FRAC {1. {{8} {{{{{{{{}}}} \ arcsin (1.0 / 0.71)
Since 1.0/0.71>11. {{{0 / 0
Rau cov tswv yim tsim tawm, feem ntau cov scissor nqa ua haujlwm ntawm15 Qib (tag nrho qis dua) thiab 75 degree (ze rau siab tshaj plaws).
Tag
Kev ua haujlwm lub kaum sab xis sib txawv nrog Lifting qhov siab. Koj tuaj yeem siv covsine muaj nuj nqiTxhawm rau suav lub kaum sab xis rau ib qho qhov siab muab. Qhia rau kuv paub yog tias koj xav tau kev pab nrog tus qauv nqa tshwj xeeb! 🚀
