Amathreyi aphansi

Ama-trailer anama-low bed, aziwa nangokuthi ama-lowboy noma ama-drop deck trailer, yizinto ezikhethekile zokuhambisa eziklanyelwe ukuthwala loads ezinkulu nezinzima eziwumqoka, eziphumula emikhawulweni yobuningi noma ubukhulu bamabha omgwaqo ajwayelekile. Embonini yokwakha izisekelo ezijulile, ama-trailer anama-low bed ayithuluzi elibalulekile lezokuhamba lokuhambisa imishini enkulu nezinkulu edingekayo endaweni, kuhlanganisa abakha odongeni be-shear, ama-drilling rigs, ama-casing tubes, ama-hammer ama-vibratory, ama-compressor, ama-generator, kanye nezinhlelo ezisizayo. Lawa ma-trailer avumela ukuhamba kahle kwemishini ye-fondation ukusuka ezindaweni zokwakha nezindawo zezimoto ukuya ezindaweni zomsebenzi, ngokuvamile ezindaweni ezinamakhuba athintekayo lapho ukuhlola izindlela zokuhamba okujwayelekile kuncishisiwe. Umqondo wokusebenza wamathrafikhi anama-low bed ugxile phezulu kwendlela yokuphakama yama-deck, okujwayelekile ukufezwa ngemodeli ye-drop-frame noma i-step-frame eyenza indawo yokulayisha ibe seduze nendawo yomhlaba kunama-flatbed ajwayelekile. Le ndlela yokusebenza yejometri inciphisa kakhulu ukuphakama okuphelele kwe-loads ezithwalwe, ivumela ukudlula emigwaqweni ehambelana nokuhlola, ama-overpasses, kanye nezitobo ngenkathi igcina ukuzinza nokuhambisana nemithetho yokuhamba emigwaqweni. Ama-trailer amanje anohlelo lwe-hydraulic lokugoba i-deck noma ukwehlisa ngezikhathi ezithile ngesikhathi sokuqgiba noku-othuli, okwenza kube lula ukusebenzisa imishini ezihambayo noma ama-ramps asizayo ngaphandle kokufuna imishini yokuphakela yangaphandle. Ukuhlukahluka kwamasondo okwande nokwakhiwa okuyimitha amaningana distributes loads ezigxilile ezindaweni eziningi zokuxhumana, okujwayelekile ama-axles amathathu kuya kwezihlanu kuye ngobuningi obuphelele, kuqinisekisa ukuhambisana nemikhawulo yesisindo sokuxhumana ethathwe yiziphathimandla zokuhamba. Ama-trailer anama-low bed atholakala ezinhlobonhlobo zokuqhuba ezifanelekela izinhlaka ezihlukene zezimboni. Ukuhlelwa okujwayelekile kufaka phakathi ama-models anama-deck aqinile anomthamo osuka kumathani angama-20 kuya kwangama-80, izinguquko ezihambayo ze-hydraulic ezikwazi ukuyehla ngokuphelele ukuze zifinyelele khona phansi kumishini enobukhulu obukhulu njengama-drilling rigs aphumelela ngaphezu kuka-15 metres, kanye nezinhlelo ezihlanganayo ezinomphakathi womphakathi ovumele ukuba ube nudliwe kwemithwalo yezinhlaka ezahlukene. Izinhlobo ezikhethekile zifaka phakathi ama-frame aqinisiwe, izikhala ezihlukene zokuthunga, kanye nezinhlelo zokuphupha eziklanyelwe ukumelana nezimo zokusebenza ezivela kumishini ye-vibratory kanye noshintsho lwe-loads ngenkathi uthwala. Izinga lokukhetha lezi zinhlelo zokuhambisa umhlabathi odeep foundation lifaka ukuphakama kwemithwalo okuphezulu okufanele kuxhunywe nesisindo semishini ngama-margin alungile wokuphepha, ubude be-deck nobubanzi okuhlangene nezilinganiso zemishini ngenkathi kuhambisana nemikhawulo yobukhulu, ukuhweba kwemhlaba kanye nezindawo zokufinyelela okuvumela ukufinyelela endaweni phezu komhlaba ongalungile, kanye nezinhlelo zokuphakela ezinamandla ezichazwe yizinkampani zomshini kanye nezindinganiso zokuhamba. Izinto ezithile ezithinta indawo—ukuphakama kwamasango, ukucaciswa kwezigxobo, imikhawulo yemithwalo ye-axle, kanye nezinga lokuphakamisa umhlaba lapho kufanele kuphume—kubhalela uhlu lokukhetha ama-trailer. Ochwepheshe baphinde bahlola ukuphendula komngani, isivinini sokuma, kanye nokuhambisana nezimoto ezihehayo. Ukuthutha imishini ye-foundation kulawulwa izindinganiso ezihlanganisa i-EN 12642 (ukuphepha kwemithwalo), i-ISO 14095 (imigomo yokuhamba kwama-trailer), kanye nemithetho yendawo elawula imithwalo ye-axle, ubukhulu, kanye nezimvume ezidingekayo. Ukuhambisana kuqinisekisa ukukhipha okuphephile, kuvikele ukusakazeka kwendawo, futhi kugcina ukuqondakala kokusebenza phakathi kwemingcele.