I-OSHA iyala abasebenzi abalungisayo ukuthi bakhiye, bamake, futhi balawule imithombo yamandla eyingozi.Abanye abantu abazi ukuthi basithatha kanjani lesi sinyathelo, yonke imishini ihlukile.Izithombe ze-Getty
Phakathi kwabantu abasebenzisa noma yiluphi uhlobo lwemishini yezimboni,vala ngaphandle/tagout (LOTO)akukho okusha.Ngaphandle uma ugesi unqanyuliwe, akekho olokotha enze noma yiluphi uhlobo lokulungisa okujwayelekile noma azame ukulungisa umshini noma isistimu.Lokhu kuyisidingo nje somqondo ojwayelekile kanye ne-Occupational Safety and Health Administration (OSHA).
Ngaphambi kokwenza imisebenzi yokulungisa noma ukulungisa, kulula ukunqamula umshini emthonjeni wawo wamandla-ngokuvamile ngokuvala i-circuit breaker-futhi ukhiye umnyango wephaneli ye-circuit breaker.Ukwengeza ilebula ekhomba ochwepheshe bezokulungisa ngamagama nakho kuyindaba elula.
Uma amandla engakwazi ukukhiywa, ilebula kuphela engasetshenziswa.Kunoma ikuphi, kungakhathaliseki ukuthi ikhiyiwe noma ingenawo, ilebula ibonisa ukuthi ukunakekelwa kuyaqhubeka futhi idivayisi ayinawo amandla.
Nokho, lokhu akukona ukuphela kwelotho.Umgomo ophelele awukona nje ukunqamula umthombo wamandla.Umgomo uwukusebenzisa noma ukukhulula wonke amagama ayingozi ku-OSHA, ukulawula amandla ayingozi.
Isaha elivamile libonisa izingozi ezimbili zesikhashana.Ngemuva kokuthi i-saw icishiwe, i-saw blade izoqhubeka nokusebenza imizuzwana embalwa, futhi izoma kuphela lapho umfutho ogcinwe ku-motor usuphelile.I-blade izohlala ishisa imizuzu embalwa kuze kuphele ukushisa.
Njengamasaha esitolo samandla kagesi nemishini eshisayo, umsebenzi wokusebenzisa imishini yezimboni (ekagesi, eyamanzi kanye neyomoya) ngokuvamile ingagcina amandla isikhathi eside. umjikelezo, amandla angagcinwa isikhathi eside esimangalisayo.
Imishini eyahlukene yezimboni idinga ukusebenzisa amandla amaningi.Insimbi ejwayelekile i-AISI 1010 ingamelana namandla okugoba afinyelela ku-45,000 PSI, ngakho imishini efana namabhuleki okucindezela, izibhakela, izibhakela, nezinsimbi zamapayipi kufanele idlulise amandla ngamayunithi angamathani.Uma isekethe enika amandla isistimu yepompo ye-hydraulic ivaliwe futhi inqanyuliwe, ingxenye ye-hydraulic yesistimu isengakwazi ukuhlinzeka nge-45,000 PSI.Emishinini esebenzisa isikhunta noma izindwani, lokhu kwanele ukuchoboza noma ukusika izitho.
Iloli lebhakede elivaliwe elinebhakede emoyeni liyingozi njengeloli lebhakede elingavaliwe.Vula i-valve engalungile futhi amandla adonsela phansi azothatha indawo.Ngokufanayo, uhlelo lwe-pneumatic lungagcina amandla amaningi lapho lucishiwe.I-bender yepayipi enosayizi omaphakathi ingakwazi ukumunca ama-ampere angu-150 wamanje.Ngaphansi kokungu-0.040 amps, inhliziyo ingayeka ukushaya.
Ukukhulula ngokuphephile noma ukunciphisa amandla kuyisinyathelo esibalulekile ngemva kokucisha amandla ne-LOTO.Ukukhishwa okuphephile noma ukusetshenziswa kwamandla ayingozi kudinga ukuqonda imigomo yesistimu kanye nemininingwane yomshini odinga ukunakekelwa noma ukulungiswa.
Kunezinhlobo ezimbili zamasistimu we-hydraulic: iluphu evulekile kanye neluphu evaliwe.Endaweni yezimboni, izinhlobo zamaphampu ezijwayelekile amagiya, i-vanes, namapiston.I-cylinder yethuluzi elisebenzayo ingaba yinto eyodwa noma ephindwe kabili.Amasistimu we-Hydraulic angaba nanoma yiziphi izinhlobo ezintathu zama-valve-ukulawula ukuqondisa, ukulawula ukugeleza, nokulawula ingcindezi-luhlobo ngalunye lwalezi zinhlobo lunezinhlobo eziningi.Kunezinto eziningi okufanele uzinake, ngakho-ke kuyadingeka ukuqonda kahle uhlobo ngalunye lwengxenye ukuze kuqedwe izingozi ezihlobene namandla.
U-Jay Robinson, ongumnikazi nomongameli we-RbSA Industrial, uthe: “I-hydraulic actuator ingase ishayelwe i-valve yokuvala imbobo egcwele.“I-valve ye-solenoid ivula i-valve.Uma uhlelo lusebenza, uketshezi lwe-hydraulic lugelezela emishinini ngomfutho omkhulu nasethangini ngomfutho ophansi,” kusho yena..“Uma uhlelo lukhiqiza i-PSI engu-2,000 futhi ugesi uvaliwe, i-solenoid izoya endaweni emaphakathi futhi ivimbe wonke amachweba.Uwoyela awukwazi ukuhamba nomshini uyama, kodwa uhlelo lungaba ne-PSI efika ku-1,000 hlangothi ngalunye lwevalvu.”
Isikhathi sokuthumela: Sep-04-2021