Uqhagamshelo lwebholithi yamandla aphezulu luqiniswa intonga yebholiti yoqhagamshelo ngaphakathi kwipleyiti yoqhagamshelo ipleyiti yokudibanisa iqhekeza, ngokwaneleyo ukuvelisa ukukhuhlana okuninzi, ukuze kuphuculwe ingqibelelo kunye nokuqina konxibelelwano, xa ukucheba, ngokuhambelana neemfuno zoyilo kunye noxinzelelo lwahlukile, lunokwahlulwa lube ludidi lwentsimbi yoqhagamshelo yamandla aphezulu kunye nohlobo loxinzelelo oluphezulu oludibanisayo, umahluko phakathi koxinzelelo lwesibini olubalulekileyo, umahluko phakathi koxinzelelo oluphezulu kunye noxinzelelo oluphezulu. uhlobo lwebholithi, kodwa indlela yokubala, iimfuno, umda wesicelo wahluke kakhulu.Kuyilo lokucheba, uqhagamshelo lwebholithi yokuqina ephezulu lubhekiselele kumandla okrwada aphezulu anokunikezelwa ngamandla okuqinisa ibholithi phakathi kwamandla okucheba angaphandle kunye nomphezulu woqhagamshelwano wepleyiti njengelizwe elilinganiselweyo, oko kukuthi, ukuqinisekisa ukuba amandla angaphakathi nangaphandle okucheba odityanisiweyo angayi kudlula ubuninzi bexesha lodibaniso lodibaniso aluyi kudlula lonke ixesha lodibaniso. i-deformation yepleyiti (isithuba sokuqala phakathi kwesikrufu kunye nodonga lomngxuma luhlala lugciniwe) Kuyilo lokucheba, uhlobo loxinzelelo oluphezulu lwebholidi yoqhagamshelo luvumelekile kumandlalo wokucheba wangaphandle odlula amandla okhuhlane aphezulu, isalamane esityibilikayo phakathi kweplate edityanisiweyo deformation, de udibaniso lwebholiti kunye nodonga lomngxuma, emva koko uqhagamshelo kwi-bolt shaft shear kunye noxinzelelo eludongeni lomngxuma kunye noxinzelelo eludongeni lomngxuma kunye noxinzelelo kudonga lomngxuma kunye noxinzelelo kudonga lomngxuma kunye noxinzelelo kudonga lomngxuma, ukunxibelelana nodonga lomngxuma odibeneyo Ngokufutshane, uhlobo lokukhuhlana iibholithi zokuqina okuphezulu kunye noxinzelelo olunoxinzelelo oluphezulu iibholiti luhlobo olunye lwebholithi, kodwa uyilo luyilo.
I-Slippage ayiqwalaselwa.Uhlobo lwe-Friction high-high-high bolt alukwazi ukutyibilika, ibholithi ayithwali mandla okucheba, xa ithe yatyibilika, uyilo luthathwa njengolufikelele kwinqanaba lokungaphumeleli, luqole ngokwetekhnoloji;Iibholithi ezinoxinzelelo oluphezulu ezinoxinzelelo oluphezulu zinokutyibilika, kwaye iibholithi nazo zithwele amandla okucheba. Umonakalo wokugqibela ulingana nalowo weebholiti eziqhelekileyo (i-bolt shear okanye i-steel plate crushing). Ngokwembono yokusetyenziswa:
Ukudityaniswa kwebholiti yelungu eliphambili lesakhiwo sesakhiwo ngokuqhelekileyo zenziwe nge-bolt-high-strength bolt.Iibholiti eziqhelekileyo zingaphinda zisetyenziswe, iibholiti zamandla aphezulu azikwazi ukuphinda zisetyenziswe.Iibholiti zamandla aphezulu zisetyenziselwa ukuxhamla ngokusisigxina.
Iibholiti zamandla aphezulu ziyi-bolts ezigxininisiweyo, uhlobo lwe-friction kunye ne-torque wrench ukusebenzisa i-prestress emiselweyo, uhlobo loxinzelelo lwe-screw kwintloko ye-plum.Iibholiti eziqhelekileyo zinentsebenzo ephantsi ye-shear kwaye zinokusetyenziswa kwiindawo zesibini zesakhiwo.Iibholiti eziqhelekileyo kufuneka ziqiniswe kuphela.
Iibholiti eziqhelekileyo ziyiklasi 4.4, iklasi 4.8, iklasi 5.6 kunye neklasi 8.8.Iibholiti zamandla aphezulu ngokubanzi ziyi-8.8 kunye ne-10.9, apho i-10.9 ininzi.
I-8.8 inqanaba elifanayo ne-8.8S.Iimpawu zomatshini kunye neendlela zokubala zebholithi eqhelekileyo kunye ne-high-strength bolt ziyahluka.Uxinzelelo lwe-bolt yamandla aphezulu kuqala ngokusetyenziswa kwe-pretension P ngaphakathi kwayo yangaphakathi, kwaye emva koko ukuxhathisa ukungqubuzana phakathi kwendawo yokudibanisa yesiqwenga sokudibanisa ukuthwala umthwalo wangaphandle, kwaye ithwala umthwalo oqhelekileyo wangaphandle.
Uqhagamshelo lwebholithi yamandla aphezulu lunenzuzo yolwakhiwo olulula, ukusebenza kakuhle komatshini, ukushenxiswa, ukumelana nokudinwa, naphantsi kwesenzo somthwalo oguquguqukayo, eyona ndlela ithembisa kakhulu yokudibanisa.
I-bolt yamandla aphezulu kukusebenzisa i-wrench ekhethekileyo yokuqinisa i-nut, ukwenzela ukuba ibholithi ivelise i-pretension enkulu kunye nelawulwayo, ngokusebenzisa i-nut kunye ne-plate, ukuba idibaniswe ngumlinganiselo ofanayo we-prepressure.Ngaphantsi kwesenzo soxinzelelo lwangaphambili, amandla amakhulu okuxhatshazwa aya kuveliswa kunye nomphezulu weqhekeza elidibeneyo. Ngokucacileyo, ukuba nje amandla e-axial angaphantsi kolu xinzelelo lwamandla, ilungu aliyi kutyibilika kwaye unxibelelwano aluyi konakaliswa. Lo ngumgaqo-siseko woxhumo oluphezulu lwebholithi.
Uqhagamshelo lwebholithi yamandla aphezulu luxhomekeke kumandla okruthakruthwana phakathi kweendawo zokuqhagamshelana zamalungu okudibanisa ukuthintela ukutyibilika okulinganayo. Ukuze ube namandla okubambisana okwaneleyo kwiindawo zoqhagamshelwano, kuyimfuneko ukwandisa amandla okudibanisa kunye ne-friction coefficient yeendawo zoqhagamshelwano zamalungu.
Kumdibaniso we-bolt wamandla aphezulu, i-coefficient ye-friction inempembelelo enkulu kwi-bearing capacity.Uvavanyo lubonisa ukuba i-coefficient ye-friction ichaphazeleka kakhulu ngendlela yoqhagamshelwano kunye nezinto ze-component.Ukuze ukwandise i-coefficient ye-friction ye-coefficient yoqhagamshelwano, iindlela ezifana nokuqhunyiswa kwesanti kunye nokucoca ibrashi yocingo zihlala zisetyenziselwa ulwakhiwo ukunyanga indawo yokudibanisa yamacandelo ngaphakathi kwendawo yokudibanisa.
Ixesha lokuposa: Jun-08-2019