Ingaba iEngile yokuLinga ichaphazela njani isakhono sesilingi esisicaba?

Iqela eliqhekezayo liphakamisa ipleyiti yensimbi ye-3-toni usebenzisa umlenze wesibini isilingi esicaba . Umlenze ngamnye wesilingi ulinganiswe ngeetoni ezi-2. Umthwalo ubonakala ungaphakathi komthamo-iitoni ezi-4 zizonke, akunjalo? Kodwa imilenze yesilingi isasazwe kwi-engile ye-45 °. Umphathi we-rigging uyayazi inyaniso: umlenze ngamnye ngoku uthwele iitoni ze-2.1-ukugqithisa umthamo wayo olinganisiweyo.

 

Le meko yenzeka rhoqo kunokuba uninzi lweengcali zokurhweba zifuna ukuvuma. I-angle yesilingi yenye yezona zinto zibaluleke kakhulu-kwaye zihlala zingaqondwa kakuhle-kwimisebenzi yokunyusa ekhuselekileyo.

 

I-Lishenflex  sele isenza ii-slings ezisicaba zokwenziwa ngaphezulu kweminyaka engamashumi amabini, kwaye amava ethu entsimi abonisa ukuba i-angle miscalculation ngoyena nobangela uphambili wokulayisha ngaphezulu kwesilingi kunye nokusilela. Ukuqonda unxulumano phakathi kwe-engile yesilingi kunye nomthamo kubalulekile kuwo wonke umkhuseli, umphathi, kunye neengcali zokhuseleko.

 

 

Kutheni i-Sling angle ibalulekile

Xa isilingi esisicaba  sisetyenziselwa ukuphakamisa okuthe nkqo, okuthe tye, umthamo opheleleyo olinganisiweyo uyafumaneka. Noko ke, njengoko imilenze yesilingi isasazwa yodwa—enoba ikwibhasikithi okanye imilenze emininzi yokuphakamisa imilenze—ukuxinezeleka kumlenze ngamnye kuyanda. Incinci i-angle phakathi komlenze we-sling kunye ne-horizontal (okanye i-angle enkulu phakathi kwemilenze), iphezulu i-tension.

 

Ukungena kweWikipedia kwi-slings  ichaza ukuba uMda wokuSebenza wokuSebenza (WLL) we-sling uphawulwe kwisilingi kwaye uthatha ukuphakama ngokuthe nkqo. Xa i-sling isetyenziswe kwi-angle, i-WLL kufuneka incitshiswe, kwaye umthamo olinganisiweyo uyancipha njengoko i-angle phakathi kwemilenze ye-sling iyanda.

 

Umgangatho we -EN 1492-1  uxela izinto zokunciphisa umthamo kwizilingi ezisicaba ezisetyenziswa kubume behitch ezahlukeneyo:

 

Umthombo: EN 1492-1 imiba yomthamo we-webbing sling

 

I-ASME B30.9  ibonelela ngesikhokelo esifanayo, esifuna ukuba amandla alinganisiweyo ancitshiswe xa izilingi zisetyenziswa kwii-engile okanye kwi-multi-leg configurations. Ngokutsho kweWikipedia 'Ultraviolet' yokungena, iifiber zokwenziwa ezifana nepolyester nazo zichaphazeleka kwi-UV degradation ngokuhamba kwexesha, ezinokuthi zinciphise ngakumbi umthamo-ukwenza izibalo ze-angle zibaluleke ngakumbi kwizilingi ezisetyenziswa ngaphandle.

 

IFiziksi yeEngile yokuLinga

Ubudlelwane phakathi kwe-engile yesilingi kunye noxinzelelo kulawulwa yifomula elula:

 

Uxinzelelo ngomlenze ngamnye = (Ubunzima bomthwalo ÷ Inani lemilenze) × I-Angle Factor

 

I-engile factor ibalwa ngolu hlobo: 1 ÷ sin(θ) —apho θ iyi-engile phakathi komlenze wesilingi kunye nenqwelomoya ethe tye.

 

Umthombo: ASME B30.9 i-engile factor calculations

 

Njengoko itheyibhile ibonisa, njengoko i-angle iyancipha, ukunyanzeliswa komlenze ngamnye kwanda kakhulu. Kwi-30 °, ukuxhatshazwa kuphindwe kabini umthwalo othe nkqo ngomlenze ngamnye. Kwi-10 °, phantse amaxesha amathandathu umthwalo othe nkqo. Oku kuthetha ukuba i-2-ton flat sling kwi-30 ° inokuthwala ngokukhuselekileyo i-1 ton-isiqingatha somthamo wayo olinganisiweyo.

 

Uvavanyo lwelebhu ye-Lishenflex iqinisekisa ukuba ii-slings ezisetyenziswe kwii-angles ezinzulu zifumana uxinzelelo oluphezulu kakhulu kwindawo yokucwina kunye nokunamathiselwe kwamehlo, ukukhawuleza ukunxiba kunye nokunyusa umngcipheko wokungaphumeleli.

 

I-Multi-Leg Slings kunye ne-Angle Factors

Xa usebenzisa i-multi-leg slings (2-leg, 3-leg, okanye 4-leg), i-angle factor kufuneka isetyenziswe emlenzeni ngamnye. Ngokutsho kwe -Encyclopedia Britannica's entry on the simple machines , i-mechanical advantage of sling ichaphazeleka yijometri ye-lift-wide angles inciphisa amandla okunyusa asebenzayo.

 

Inkqubo ecetyiswayo yokunyuswa kwemilenze emininzi:

 

1. Ukulinganisa i-engile  phakathi komlenze wesilingi ngamnye kunye nothe tye.

 

2. Qinisekisa i-engile factor  ukusuka kwitheyibhile (1/sin θ).

 

3. Bala ukutsaleka komlenze ngamnye = (Umthwalo ÷ Inani lemilenze) × I-engile factor.

 

4. Qinisekisa ukuba ukutsaleka komlenze ngamnye  akugqithi kwi-WLL ekalisiweyo yesilingi.

 

Iimpazamo ze-Angle eziqhelekileyo

Ezona mpazamo zintathu zixhaphakileyo ezinxulumene ne-engile kwi-flat sling rigging zezi:

 

1. I-engile ejongeyo xa kubalwa iTotal Capacity

 

Impazamo eqhelekileyo kukongeza ii-WLL zomlenze wesilingi ngamnye ngaphandle kokusebenzisa i-angle factor. Ngokomzekelo, ii-slings ezimbini ze-2-toni azinikezeli iitoni ezi-4 zomthamo kwi-45 °-zibonelela ngeetoni ze-2.8 kuphela (2 × 2t × 0.7 angle factor).

 

2. Ukusebenzisa iEngile yeReferensi ephosakeleyo

 

Ezinye izikhuseli zilinganisa i-engile phakathi kwemilenze yesilingi kune-engile phakathi kwesilingi kunye ne-horizontal. Itheyibhile ye-engile isekelwe kwi-engile ukuya kwi-horizontal. I-angle efakiweyo phakathi kwemilenze iphindwe kabini i-angle ukuya kwi-horizontal.

 

Ireferensi ekhawulezayo:

 

I-90 ° ifakiwe i-angle = 45 ° ukuya kwi-horizontal

 

I-120 ° ibandakanya i-angle = 60 ° ukuya kwi-horizontal

 

30 ° ifakiwe engile = 15 ° ukuya tye

 

3. Ukungahoyi ukuNcitshiswa kweSakhono kwiiHitshi zeBhaskithi

 

Kwi-basket hitches, imilenze yomibini yabelana ngomthwalo, kodwa i-angle isasebenza. Isixhobo somthamo we-basket hitch kunye ne-angle ye-45 ° yomlenze ngu-1.4-kungekhona i-2.0. Itheyibhile kwi-EN 1492-1 ibonelela ngezinto ezichanekileyo.

 

Ukuhlolwa kunye noQinisekiso

IsiKhokelo se-OSHA kwi-Safe Sling Use  kufuna ukuba i-angle ye-coke kunye ne-angle yemilenze ye-sling ithathelwe ingqalelo xa kumiselwa umthamo olinganisiweyo. Ngokukodwa, umthwalo olinganisiweyo we-sling kwi-hitch choke usebenza ngaphandle kokuba i-angle ye-choke yi-120 degrees okanye ngaphezulu. Kwii-angles of choke ngaphantsi kwe-120 degrees, umthwalo olinganisiweyo kufuneka uncitshiswe.

 

Ngokwe- ASME B30.9 , ukubalwa komthamo kufuneka kuqinisekiswe ngumntu oqeqeshiweyo phambi kokunyuswa ngakunye. Ukuhlolwa rhoqo kufuneka kuqinisekise ukuba iithegi zesilingi ziyafundeka, njengoko i-WLL ifuneka ukubala imithwalo ekhuselekileyo kwii-angles.

 

Iikhrayitheriya zokususa eziphambili phantsi kwe-ASME B30.9 ezinokuchaphazela umthamo we-engile:

 

Ithegi yesazisi elahlekileyo okanye engafundekiyo-ngaphandle kwe-WLL, izibalo ze-engile azinakwenziwa

 

Ubungqina bomonakalo we-UV (ukucima, ukuqina) -ukunciphisa umthamo ngaphaya kwezinto ze-angle

 

Umonakalo obonakalayo onciphisa ububanzi obusebenzayo-ukuchaphazela umthamo oseleyo

 

Isishwankathelo kunye neeNgcebiso eziSebenzayo

I-engile yesilingi yenye yezona zinto zibaluleke kakhulu ezichaphazela umthamo we-sling sling. Isilingi sikaWLL esikalisiweyo sisekwe kwisinyusi esithe nkqo, kwaye umthamo kufuneka uncitshiswe xa usetyenziswa kwii-engile.

 

Izinto eziphambili ezithathwayo:

 

1. Ungaze usebenzise ii-WLLs zizonke ngaphandle kokusebenzisa i-engile factor — itension iyanda njengoko i-engile isihla

 

2. Ukulinganisa i-engile ukuya kwindawo ethe tye, hayi i-engile phakathi kwemilenze

 

3. Bhekisela kwiitafile zomthamo webhaskithi, ukuminxa, kunye noqwalaselo lwemilenze emininzi

 

4. Hlola iithegi zesilingi  ukuqinisekisa ukuba i-WLL iyafundeka-ngaphandle kwayo, izibalo ze-engile azinakuqinisekiswa.

 

5. Cinga ngezinto ezisingqongileyo —i-UV nobushushu bunokunciphisa umthamo ongaphaya kwee-engile factor

 

I-Lishenflex  ivelisa i-polyester flat slings kunye neempawu ezicacileyo zombala-coded umthamo, ngokuhambelana ne-EN 1492-1 kunye nemigangatho ye-ASME B30.9. Sibonelela ngezixhobo zereferensi ye-engile kunye noqeqesho kwindawo yokuqinisekisa ukuba iqela lakho linokwazi ukubala imithwalo ekhuselekileyo ngokuchanekileyo.

 

Ukuba ufuna uncedo lokubala imithwalo ekhuselekileyo yokusebenza yejiyometri yakho yokuphakamisa-okanye ufuna uncedo ekumiseleni ukuba izilingi zakho zangoku zifanelekile na ukunyuswa kwe-angled-nceda uthumele i-imeyile sales@lishenflex.com , kunye neqela lethu lobugcisa liya kubonelela ngenkxaso yomntu omnye.