Joang Sling Angle E Ama Bokhoni ba Sling e Sephara?

Sehlopha se qhekellang se phahamisa poleiti ea tšepe ea lithane tse 3 ka maoto a mabeli letjeketjane le bataletseng . Leoto le leng le le leng la letjeketjane le lekantsoe lithane tse peli. Mojaro o bonahala o le ka har'a matla - lithane tse 4 kaofela, na ha ho joalo? Empa maoto a letjeketjane a phatlalalitsoe ka lehlakoreng la 45°. Mookameli oa ho qhekella o tseba 'nete: leoto le leng le le leng le na le lithane tse 2,1-ho feta matla a lona a lekantsoeng.

 

Boemo bona bo etsahala hangata ho feta kamoo litsebi tse ngata tsa bolotsana li tsotellang ho lumela. Sling angle ke e 'ngoe ea lintlha tse mahlonoko haholo-'me hangata li sa utloisisoe hantle - ts'ebetsong e sireletsehileng ea ho phahamisa.

 

Lishenflex  e 'nile ea etsa li-slings tsa maiketsetso tse bataletseng ka lilemo tse fetang mashome a mabeli,' me phihlelo ea rona ea tšimo e bontša hore ho fosahala ha angle ke sesosa se ka sehloohong sa ho beleha le ho hloleha. Ho utloisisa kamano e teng lipakeng tsa sling angle le bokhoni ke ntho ea bohlokoa bakeng sa sethunya se seng le se seng, mookameli le setsebi sa polokeho.

 

 

Ke Hobane'ng ha Sling Angle e le Bohlokoa

Ha letjeketjane le bataletseng  le sebelisoa ka phahamiso e otlolohileng, e otlolohileng, matla a lekantsoeng ka botlalo a fumaneha. Leha ho le joalo, ha maoto a letjeketjane a ntse a aroloa—ebang ke ka basketeng kapa ka ho phahamisoa ha maoto a mangata—ho tsitsipana leotong ka leng hoa eketseha. Ha angle e nyane e pakeng tsa leoto la letjeketjane le le rapameng (kapa e kholoanyane e pakeng tsa maoto), e phahamisa tsitsipano.

 

Keno ya Wikipedia mabapi le matjeketjane  e hlalosa hore Moedi wa Moroalo o Sebetsang (WLL) wa letjeketjane o tshwailwe hodima letjeketjane mme o nka phahamiso e emeng. Ha letjeketjane le sebelisoa ka lehlakoreng, WLL e tlameha ho fokotsoa, ​​'me matla a lekantsoeng a fokotseha ha lehlakoreng le pakeng tsa maoto a letjeketjane le eketseha.

 

Tekanyetso ea EN 1492-1  e totobatsa lintlha tsa phokotso ea matla bakeng sa li-slings tse bataletseng tse sebelisoang litlhophisong tse fapaneng tsa hitch:

 

Mohloli: EN 1492-1 lintlha tsa matla a marang-rang a marang-rang

 

ASME B30.9  e fana ka tataiso e ts'oanang, e hlokang hore bokhoni bo lekantsoeng bo fokotsoe ha li-slings li sebelisoa ka li-angles kapa litlhophiso tsa maoto a mangata. Ho ea ka Wikipedia 'Ultraviolet' ho kena, likhoele tsa maiketsetso tse kang polyester le tsona li ka hlaseloa habonolo ke ho senyeha ha UV ha nako e ntse e ea, e leng se ka fokotsang bokhoni-ho etsa hore lipalo tsa angle li be bohlokoa le ho feta bakeng sa li-slings tse sebelisoang ka ntle.

 

Fizikia ea Sling Angle

Kamano pakeng tsa sling angle le tension e laoloa ke mokhoa o bonolo:

 

Tsietsi ka leoto = (Boima ba Mojaro ÷ Palo ea Maoto) × Angle Factor

 

The angle factor e baloa e le: 1 ÷ sin(θ) —moo θ e leng angle pakeng tsa leoto la letjeketjane le sefofane se tšekaletseng.

 

Mohloli: ASME B30.9 angle factor calculations

 

Joalokaha tafole e bontša, ha angle e fokotseha, tsitsipano leoto le leng le le leng le eketseha haholo. Ho 30 °, tsitsipano e habeli mojaro o otlolohileng ka leoto. Ho 10°, e batla e ba makhetlo a tšeletseng ho feta mojaro o otlolohileng. Sena se bolela hore letjeketjane le bataletseng la lithane tse 2 ho 30° le ka nka thane e le 'ngoe ka mokhoa o sireletsehileng—halofo ea matla a eona a lekantsoeng.

 

Tlhahlobo ea laboratori ea Lishenflex e tiisa hore li-slings tse sebelisoang ka li-angles tse sa tebang li ba le khatello ea kelello e phahameng haholo sebakeng sa ho choke le li-attachments tsa mahlo, ho potlakisa ho apara le ho eketsa kotsi ea ho hlōleha.

 

Multi-Leg Slings le Angle Factors

Ha u sebelisa li-slings tsa maoto a mangata (2-leg, 3-leg, kapa 4-leg), ntlha ea angle e tlameha ho sebelisoa leoto le leng le le leng. Ho ea ka ho kena ha Encyclopedia Britannica ka mechine e bonolo , molemo oa mochine oa sling o angoa ke geometry ea ho phahamisa-li-angles tse pharaletseng li fokotsa matla a ho phahamisa ka katleho.

 

Mokhoa o khothaletsoang oa ho phahamisa maoto a mangata:

 

1. Lekanya angle  pakeng tsa leoto le leng le le leng la letjeketjane le le rapameng.

 

2. Fumana ntlha ea angle  ho tloha tafoleng (1/sin θ).

 

3. Bala tsitsipano ka leoto ka leng = (Mojaro ÷ Palo ea maoto) × Angle factor.

 

4. Netefatsa hore tsitsipano ea leoto ka leng  ha e fete WLL e lekantsoeng ea letjeketjane.

 

Liphoso tse Tloaelehileng tsa Angle

Liphoso tse tharo tse atileng haholo tse amanang le li-angles tsa ho rigging ka masela a bataletseng ke:

 

1. Overlooking Angle Ha Bala Kakaretso ea Bokhoni

 

Phoso e tloaelehileng ke ho eketsa li-WLL tsa leoto le leng le le leng la letjeketjane ntle le ho sebelisa li-angle factor. Ka mohlala, li-slings tse peli tsa 2-ton ha li fane ka lithane tse 4 tsa matla ho 45 ° - li fana ka lithane tse 2,8 feela (2 × 2t × 0.7 angle factor).

 

2. Ho Sebelisa Lekunutu le Fosahetseng

 

Lisebelisoa tse ling li lekanya angle pakeng tsa maoto a letjeketjane ho e-na le ho lekanya sebaka se pakeng tsa letjeketjane le se rapameng. The angle factor table e theilwe hodima angle ho ya ho tse rapameng. Lehlakore le kenyelelitsoeng pakeng tsa maoto le habeli ho ea ho tse rapameng.

 

Referense e potlakileng:

 

90 ° e kenyelelitse angle = 45 ° ho ea holimo

 

120 ° e kenyelelitse angle = 60 ° ho ea holimo

 

30 ° e kenyelelitse angle = 15 ° ho ea holimo

 

3. Ho iphapanyetsa Phokotso ea Bokhoni ho Li-Basket Hitches

 

Ka li-basket hitches, maoto a mabeli a arolelana mojaro, empa angle e ntse e sebetsa. Boemo ba bokhoni bakeng sa ho otla ha baskete ka sekhahla sa leoto sa 45 ° ke 1.4-eseng 2.0. Tafole ho EN 1492-1 e fana ka lintlha tse nepahetseng.

 

Tlhahlobo le netefatso

Tataiso ea OSHA mabapi le Tšebeliso e Sireletsehileng ea Sling  e hloka hore angle ea ho choke le angle ea maoto a letjeketjane e nkoe ha ho khethoa bokhoni bo lekantsoeng. Haholo-holo, mojaro o lekantsoeng bakeng sa letjeketjane le koetsoeng o sebetsa ha feela angle ea choke e le likhato tse 120 kapa ho feta. Bakeng sa li-angles tsa choke ka tlase ho likhato tse 120, mojaro o lekantsoeng o tlameha ho fokotsoa.

 

Ho latela ASME B30.9 , lipalo tsa bokhoni li tlameha ho netefatsoa ke motho ea nang le litsebo pele ho lift ka 'ngoe. Ho hlahlojoa khafetsa ho lokela ho netefatsa hore li-tag tsa letjeketjane lia baleha, kaha WLL e hlokahala ho bala meroalo e bolokehileng ka li-angles.

 

Lintlha tsa bohlokoa tsa ho tlosa tlas'a ASME B30.9 tse ka amang boholo ba angle:

 

Theke ea boitsebiso e sieo kapa e sa baleheng—ntle le WLL, lipalo tsa li-angle li ke ke tsa etsoa

 

Bopaki ba ts'enyo ea UV (ho fifala, ho satalla) -e fokotsa matla ho feta mabaka a angle

 

Tšenyo e bonahalang e fokotsang bophara bo sebetsang-ho ama matla a setseng

 

Kakaretso le Likhothaletso tse Sebetsang

Sling angle ke e 'ngoe ea lintlha tse bohlokoa ka ho fetisisa tse amang matla a seretse se bataletseng. Sling's rated WLL e thehiloe holim'a phahamiso e emeng, 'me matla a tlameha ho fokotsoa ha a sebelisoa likhutlong.

 

Lintlha tsa bohlokoa:

 

1. Le ka mohla u se ke ua sebelisa kakaretso ea li-WLL ntle le ho sebelisa li-angle factor — tsitsipano ea eketseha ha angle e fokotseha

 

2. Lekanya angle ho ea ho tse rapameng, eseng sebaka se pakeng tsa maoto

 

3. Sheba litafole tsa bokhoni bakeng sa baskete, choke, le tlhophiso ea maoto a mangata

 

4. Lekola matšoao a letjeketjane  ho netefatsa hore WLL ea baleha - ntle le eona, lipalo tsa li-angles li ke ke tsa netefatsoa

 

5. Nahana ka lintlha tsa tikoloho - UV le mocheso li ka fokotsa matla a fetang li-angle factor

 

Lishenflex  e etsa li-slings tse bataletseng tsa polyester tse nang le matšoao a hlakileng a mebala, a tsamaellanang le litekanyetso tsa EN 1492-1 le ASME B30.9. Re fana ka lisebelisoa tsa litšupiso tsa li-angle factor le koetliso ea sebakeng sa marang-rang ho netefatsa hore sehlopha sa hau se khona ho bala meroalo e bolokehileng ka nepo.

 

Haeba u hloka thuso ea ho bala meroalo e sireletsehileng ea ho sebetsa bakeng sa geometry ea hau e khethehileng - kapa u hloka thuso ea ho tseba hore na li-slings tsa hau tsa hajoale li loketse li-angled lifts - ka kopo romella lengolo-tsoibila ho sales@lishenflex.com , mme sehlopha sa rona sa tekheniki se tla fana ka ts'ehetso ea motho a le mong.