Kana iyo gantry crane iri kushandiswa, chishandiso chekudzivirira chinogona kudzivirira zvakanyanya kuwanda. Inonziwo lifting capacity limiter. Basa rayo rekuchengetedza nderekumisa chiitiko chekusimudza kana mutoro wekusimudza crane uchidarika kukosha kwakayerwa, nekudaro kudzivirira njodzi dzinorema. Overload limiters anoshandiswa zvakanyanya pabhiriji mhando cranes uye hoists. Vamwejib type cranes(semuenzaniso tower cranes, gantry cranes) shandisa overload limiter pamwe chete neinomisikidza nguva. Kune akawanda marudzi ekuremedza zvimisikidzo, zvemagetsi uye zvemagetsi.
(1) Mechanical type: Anorova anofambiswa nekuita kwemalever, zvitubu, makamu, nezvimwewo. Kana zvanyanya kuwandisa, anorova anopindirana neswichi inodzora chiito chekusimudza, ichicheka panobva simba remagetsi ekusimudza, uye kutonga kusimudza nzira yekumisa kumhanya.
(2) Mhando yemagetsi: Inoumbwa ne sensors, mashandiro amplifiers, control actuators uye mitoro zviratidzo. Inobatanidza mabasa ekuchengetedza akadai sekuratidzira, kutonga uye alarm. Kana iyo crane inosimudza mutoro, sensor pane inotakura-inotakura chikamu inodzima, inoshandura huremu hwemutoro kuita chiratidzo chemagetsi, yobva yaikudza kuratidza kukosha kwemutoro. Kana mutoro unopfuura mutoro wakarongwa, simba rekugadzirisa nzira yekusimudza rinogurwa, kuitira kuti chiito chekusimudza chemaitiro ekusimudza hachikwanisi kuitika.
Thegantry craneinoshandisa nguva yekusimudza kuratidza mamiriro emutoro. Iko kukosha kwenguva yekusimudza kunotsanangurwa nechigadzirwa chekusimudza uremu uye amplitude. Kukosha kweamplitude kunotarwa nechigadzirwa chehurefu hweruoko rwe crane boom uye cosine yekona yekurerekera. Kunyangwe iyo crane yakaremerwa inoganhurwa nehukuru hwekusimudza, kureba kweboom uye boom inclination angle. Panguva imwecheteyo, maitiro akawanda akadai semamiriro ekushanda anofanirwawo kutariswa, izvo zvinoita kuti kutonga kuve kwakaoma.
Iyo parizvino inoshandiswa zvakanyanya microcomputer inodzorwa torque limiter inogona kubatanidza akasiyana mamiriro uye kugadzirisa dambudziko iri zvirinani. Iyo torque limiter ine inotakura detector, ruoko kureba detector, angle detector, yekushanda mamiriro ekusarudza uye microcomputer. Kana iyo crane ichipinda munzvimbo yekushanda, zviratidzo zvekuona zvega rega rega remamiriro ekushanda chaiwo anoiswa mukombuta. Mushure mekuverenga, kukwidziridzwa uye kugadzirisa, ivo vanofananidzwa neyakare-yakachengetwa yakayerwa yekusimudza nguva kukosha, uye inoenderana chaiyo kukosha inoratidzwa pachiratidziro. . Kana iyo chaiyo kukosha yasvika 90% yeiyo yakatemerwa kukosha, inotumira iyo yekutanga yambiro chiratidzo. Kana iyo chaiyo kukosha yakadarika mutoro wakayerwa, chiratidzo chealarm chichapihwa, uye crane inomira kushanda munzira ine njodzi (kusimudza, kutambanudza ruoko, kudzikisa ruoko, uye kutenderera).
