Abahlinzeki bemishini yokonga i-elevator bakukhumbuza ukuthi ikheshi lithatha isakhiwo sokudonsa, esigcina ibhalansi nge-counterweight, okuvumela imoto yomgibeli ukuthi ihambe kahle ngaphansi kokudonsa komshini wokudonsa. Amakheshi anezimo ezintathu zokusebenza: i-standby, ukushayela, nokuvuselela (impendulo). Uma ilifti ingasebenzi esimweni sokumi, ikwimodi yokulinda; Lapho i-elevator isesimweni somthwalo osindayo noma umthwalo omncane wehla, amandla kagesi angaphandle aguqulwa abe amandla angaba namandla emoto ngokulungiswa nokuguqulwa kwesiguquli semvamisa, ukusebenza komshini wokudonsa kanye nesistimu yokudonsa, okuyisimo sokushayela; Ngokuphambene nalokho, lapho umthwalo osindayo wehla noma umthwalo omncane ukhuphuka, amandla anamandla emoto ayakhululwa, noma amandla abuyiselwa kugridi ngokusebenzisa isiguquli sefrikhwensi esiphindwe kabili, noma amandla asetshenziswa ku-resistor yokubhuleka ye-converter frequency, okuyisimo sokuvuselela (impendulo).
1. Imodi yokulinda:
Amakheshi awasebenzi ngokuqhubekayo, futhi isikhathi sokulinda ngokuvamile siba side kakhulu kunesikhathi imoto igijima yehla yenyuka. Ngakho-ke, ukusetshenziswa kwamandla kwezimo zokulinda akukwazi ukushaywa indiva, futhi kuzoba nokulahlekelwa okukhulu. Kumodi yokulinda, ingxenye kagesi esetshenziswa ilifti isetshenziswa ekulawuleni nasekuboniseni amasekhethi egumbi lomshini, imoto yelifti, nesiteshi sokuhlala, kuyilapho enye ingxenye isetshenziswa endaweni yokukhanyisa nokukhipha umoya wemoto yekheshi.
2. Izimo zokushayela:
Ezimweni zokushayela, ngaphezu kokusetshenziswa ezimweni zokulinda, ugesi osetshenziswa ama-elevator uhlanganisa izici ezilandelayo: okokuqala, ukusetshenziswa kwamandla okuvula nokuvala iminyango; Okwesibili ukulahlekelwa kwedivayisi yokuguqula imvamisa, okuhlanganisa konke ukulahlekelwa kwesifunda phakathi kokufaka kwamandla ezigaba ezintathu kanye nokukhishwa kwe-inverter kumjikelezo oyinhloko, okufaka izihlungi, izihlungi, ama-rectifiers, nama-inverters; Okwesithathu ukulahlekelwa umshini wokudonsa, okuhlanganisa nokulahlekelwa ukudluliselwa kwemishini kwangaphakathi komshini wokudonsa; Okwesine ukulahlekelwa okukhiqizwa uhlelo lokudonsa, okuhlanganisa ukulahlekelwa kwamandla phakathi nayo yonke inqubo kusukela ekujikelezeni kwesondo lokudonsa ukuya ekusebenzeni kwemoto eqhutshwa yintambo yocingo lokudonsa. Ugesi ulahlekelwa uchungechunge ngaphambi kokuba uguqulwe ube amandla e-kinetic namandla angaba khona adingekayo ekusebenzeni kwekheshi. Kufanele kuqashelwe ukuthi ngenxa yendima "ye-counterweight mechanism", ukusetshenziswa kwamandla kwamakheshi okudonsa kuyahluka kakhulu ngaphansi kwezimo ezihlukene zomthwalo, okuholela ekwehlukeni okukhulu ekusebenzeni kahle kwamandla ngaphansi kwezimo ezihlukene zomthwalo.
3. Isimo sokuzalwa kabusha:
Ukugeleza kwamandla ngaphansi kwezimo zokuvuselelwa kuyinkimbinkimbi. Ngakolunye uhlangothi, ukusetshenziswa kwamandla kagesi we-elevator kuguqulwa kube amandla ayingxenye ye-kinetic (ukunyakaza kwe-W) yemoto kanye nokulayisha ngokusebenzisa isiguquli semvamisa kanye nomshini wokudonsa ngemuva kokuvula umnyango nokuvala imoto, ukulawula nokubonisa isifunda; Ngakolunye uhlangothi, amandla angaba khona (amandla ka-W) emoto nomthwalo aguqulwa ngokwengxenye abe amandla e-kinetic (ukunyakaza kwe-W) yemoto nomthwalo, futhi enye ingxenye ibuyiselwa kusiguquli semvamisa ngesistimu yokudonsa nomshini wokudonsa. Kumakheshi anomsebenzi wempendulo yamandla, isiguquli sokuvama sizophendula la mandla (E-back) kugridi ngokuguquguquka nokuhlunga. Kumakheshi angenawo umsebenzi wempendulo yamandla, la mandla azosetshenziswa ku-resistor yokupholisa yesiguquli sefrikhwensi.