OSHA inoraira vashandi vekuchengetedza kukiya, tag, uye kutonga masimba ane njodzi.Vamwe vanhu havazive kutora danho iri, muchina wega wega wakasiyana.Vadivelu Comedy Getty Images
Pakati pevanhu vanoshandisa chero mhando yezvigadzirwa zvemaindasitiri,kukiya/kutaga (LOTO)hapana chitsva.Kunze kwekunge simba radzimwa, hapana anoshinga kuita chero nzira yekugadzirisa kana kuedza kugadzirisa muchina kana system.Izvi zvinongodiwa zvehungwaru uye Occupational Safety and Health Administration (OSHA).
Usati waita mabasa ekugadzirisa kana kugadzirisa, zviri nyore kubvisa muchina kubva kune simba rayo-kazhinji nekudzima dhizaini-uye kukiya musuwo wedunhu rebreaker panel.Kuisa zita rinozivisa nyanzvi dzekugadzirisa nemazita inyaya iri nyore.
Kana simba risingakwanisi kuvharwa, chinyorwa chete chinogona kushandiswa.Chero zvazvingava, ingave yakakiyiwa kana isina, iyo label inoratidza kuti kugadzirisa kuri kuitika uye mudziyo haubatike.
Zvisinei, uku hakusi kupera kwerotari.Chinangwa chikuru hachisi chekungobvisa simba remagetsi.Chinangwa ndechokudya kana kusunungura simba rose rine ngozi-mumashoko eOSHA, kudzora simba rine ngozi.
Sahawo zvayo inofananidzira njodzi mbiri dzenguva pfupi.Mushure mekunge jeko radzimwa, blade yesaha icharamba ichimhanya kwemasekonzi mashoma, uye inongomira kana simba rakachengetwa mumotokari rapera.Iyo blade icharamba ichipisa kwemaminitsi mashomanana kusvikira kupisa kwapera.
Kungofanana nemasaha echitoro chemagetsi uye simba rekupisa, basa rekushandisa michina yemaindasitiri (yemagetsi, hydraulic uye pneumatic) kazhinji inogona kuchengetedza simba kwenguva yakareba. dunhu, simba rinogona kuchengetwa kwenguva yakareba inoshamisa.
Michina yakasiyana-siyana yemaindasitiri inoda kushandisa simba rakawanda.Iyo yakajairwa simbi AISI 1010 inogona kushingirira kukotama masimba anosvika 45,000 PSI, saka michina yakaita semabhureki ekutsikirira, zvibhakera, zvibhakera, uye pombi benders inofanira kufambisa simba muzvikamu zvematani.Kana dunhu rinosimbisa iyo hydraulic pump system yakavharwa uye yakabviswa, iyo hydraulic chikamu cheiyo system inogona kuramba ichikwanisa kupa 45,000 PSI.Pamichina inoshandisa mold kana mashizha, izvi zvinokwana kupwanya kana kucheka makumbo.
Rori yakavharwa ine bhaketi mudenga ine ngozi kungofanana nerori yebhakiti isina kuvharwa.Vhura vharuvhu isiriyo uye giravhiti richatora.Saizvozvowo, iyo pneumatic system inogona kuchengetedza simba rakawanda kana yakadzimwa.Iyo yepakati-saizi pombi bender inogona kutora kusvika 150 amperes yezvino.Zvakaderera se0.040 amps, mwoyo unogona kumira kurova.
Kusunungura zvakachengeteka kana kupedza simba inhanho yakakosha mushure mekudzima simba uye LOTO.Kusunungurwa kwakachengeteka kana kushandiswa kwesimba rine ngozi kunoda kunzwisisa kwenheyo dzehurongwa uye ruzivo rwemuchina unoda kuchengetedzwa kana kugadziriswa.
Kune mhando mbiri dze hydraulic system: yakavhurika loop uye yakavharwa loop.Munzvimbo yeindasitiri, mhando dzepombi dzakajairika magiya, vanes, uye pistons.Silinda yechishandiso chekumhanya inogona kuita-imwe-kuita kana kaviri-kuita.MaHydraulic masisitimu anogona kuve nechero yemhando nhatu dzevharuvhu-directional control, kuyerera kwekudzora, uye kudzvanywa kwekudzora-imwe neimwe yemhando idzi ine akawanda marudzi.Pane zvinhu zvakawanda zvekuteerera, saka zvinodikanwa kunyatsonzwisisa chimwe nechimwe chechikamu kuti ubvise njodzi dzine chekuita nesimba.
Jay Robinson, muridzi uye purezidhendi weRbSA Industrial, akati: "Iyo hydraulic actuator inogona kufambiswa nevhavha yakazara-chiteshi chekuvhara."“Solenoid valve inovhura vharuvhu.Kana sisitimu yave kushanda, iyo hydraulic fluid inoyerera ichienda kune midziyo ine high pressure uye kutangi ine low pressure,” akadaro.."Kana sisitimu ikaburitsa zviuru zviviri zvePSI uye simba rakadzimwa, solenoid inoenda kunzvimbo yepakati uye inovhara madoko ese.Oiri haikwanise kuyerera uye muchina unomira, asi sisitimu iyi inogona kusvika chiuru chePSI kudivi rega rega revhavha.
Nguva yekutumira: Sep-04-2021