Uqhagamshelo lwebholithi yamandla aphezulu luqiniswa intonga yebholiti yoqhagamshelo ngaphakathi kwipleyiti yoqhagamshelwano ipleyiti yokudibanisa iqhekeza, ngokwaneleyo ukuvelisa ukukhuhlana okuninzi, ukuze kuphuculwe ingqibelelo kunye nokuqina koqhagamshelwano, xa ukucheba, ngokuhambelana neemfuno Uyilo kunye noxinzelelo lwahlukile, lunokwahlulwa lube luhlobo lokukhuhlana kwibholiti yamandla aphezulu kunye nebholiti yamandla aphezulu edibanisa uhlobo olubini loxinzelelo, ngumahluko obalulekileyo phakathi kobume bemida emibini yahlukile, nangona luhlobo olufanayo lwebholithi, kodwa ukubala indlela, iimfuno, umda wesicelo wahluke kakhulu.Kuyilo lokucheba, uqhagamshelo oluluqilima lwebholithi oluluqilima lubhekisa kumandla okrwada aphezulu anokunikezelwa ngamandla okuqinisa ibholithi phakathi kwamandla angaphandle okucheba kunye nomphezulu woqhagamshelwano wepleyiti njengomda. urhulumente, oko kukuthi, ukuqinisekisa ukuba amandla okucheba angaphakathi nangaphandle oqhagamshelo aludluli ubuninzi bamandla okukhuhla ngexesha lenkonzo yonke.Ixesha.Akusayi kubakho deformation yesilaphu sepleyiti (isithuba sokuqala phakathi kwesikrufu kunye nodonga lomngxuma luhlala lugciniwe).Kuyilo lokucheba, uhlobo loxinzelelo oluphezulu lwebhonti yoqhagamshelo luvumelekile kumandla ocheba angaphandle adlula amandla okhuhlane aphezulu. , isalamane esityibilikayo phakathi kokuguqulwa kwepleyiti edityanisiweyo, de kube udibaniso lwebholiti kunye nodonga lomngxuma, emva koko uqhagamshelo kwi-shear ye-bolt shaft kunye noxinzelelo kudonga lomngxuma kunye nokukhuhlana phakathi kwepaneli yoqhagamshelwano yamandla edibeneyo, ekugqibeleni ukucheba okanye uxinzelelo Umonakalo wodonga lomngxuma njengoko wamkele isimo somda wokucheba.Ngamafutshane, uhlobo lokukhuhlana iibholithi zokuqina okuphezulu kunye noxinzelelo olunoxinzelelo oluphezulu iibholithi luluhlobo olufanayo lweebholiti, kodwa uyilo luyilo.
Ukutyibilika akuqwalaselwa nezitshixo nazo zicheba ngamandla.Umonakalo wokugqibela ulingana neebholiti eziqhelekileyo (i-bolt shear okanye i-steel plate crushing). Ngokwembono yokusetyenziswa:
Ukudityaniswa kwebholidi yelungu eliphambili lesakhiwo sesakhiwo ngokuqhelekileyo senziwe 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 ziqhelekileyo iklasi 4.4, iklasi 4.8, iklasi 5.6 kunye neklasi 8.8.Iibholithi zamandla aphezulu ngokubanzi ziyi-8.8 kunye ne-10.9, apho i-10.9 ininzi.
I-8.8 ikwibakala elifanayo no-8.8S. Iipropati zoomatshini kunye neendlela zokubala zebholithi eqhelekileyo kunye nebholithi yokuqina zihlukile. Uxinzelelo lwebholithi yamandla aphezulu kuqala ngokusetyenziswa kwe-pretension P ngaphakathi kwayo, kwaye emva koko ukuxhathisa ingxabano phakathi komphezulu woqhagamshelwano weqhekeza lokudibanisa ukuthwala umthwalo wangaphandle, kunye nebholithi eqhelekileyo ithwala ngokuthe ngqo umthwalo wangaphandle.
Uxhulumaniso lwebholithi yamandla aphezulu lunenzuzo yolwakhiwo olulula, ukusebenza kakuhle komatshini, ukushenxiswa, ukumelana nokudinwa, naphantsi kwesenzo somthwalo oguquguqukayo, oyindlela yokudibanisa ethembisa kakhulu.
Ibholiti yamandla aphezulu kukusebenzisa i-wrench ekhethekileyo yokuqinisa i-nut, ukwenzela ukuba ibholithi ivelise i-pretension enkulu kunye nokulawulwa, ngokusebenzisa i-nut kunye nepleyiti, ukuba idibaniswe ngumlinganiselo ofanayo woxinzelelo.Ngaphantsi kwesenzo soxinzelelo lwangaphambili. , amandla amakhulu okukhuhlana aya kuveliswa ecaleni komphezulu weqhekeza elidityanisiweyo.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 zamacandelo okudibanisa ukuthintela ukutyibilika okulinganayo.Ukuze ube namandla okwaneleyo okudibanisa kwiindawo zoqhagamshelwano, kuyimfuneko ukwandisa amandla okudibanisa kunye ne-coefficient ye-friction yeendawo zoqhagamshelwano zamalungu. zenziwe ngentsimbi ephezulu, yingakho zibizwa ngokuba yi-high-strength bolt uxhumano.
Kumdibaniso we-bolt wamandla aphezulu, i-coefficient ye-friction inempembelelo enkulu kwi-bearing capacity.Uvavanyo lubonisa ukuba i-coefficient ye-friction ichaphazeleka kakhulu yindlela yokudibanisa ubuso kunye nezinto zecandelo. , iindlela ezifana nokuqhunyiswa kwesanti kunye nokucoca ibrashi yocingo zihlala zisetyenziselwa ulwakhiwo ukunyanga umphezulu woqhagamshelwano wamacandelo ngaphakathi koluhlu lokudibanisa.
Ixesha lokuposa: Jun-08-2019