Kuv puas tuaj yeem siv lub tiaj tiaj tiaj hauv qhov kev teeb tsa ntawm Choke Hitch?

Cov neeg ua haujlwm rigging yuav tsum tau nqa lub cylindrical load - ib lub yeeb nkab steel, ib qho pob zeb, lossis ib pob ntawm rebar. Cov flat sling  lawv lob los ntawm khib yog qhov ntev thiab muaj peev xwm. Tab sis lub load tsis tau txhais cov ntsiab lus txuas. Lub rigger qhwv lub sling nyob ib ncig ntawm lub load, hla ib lub qhov muag los ntawm lwm yam, thiab cinches nws nruj. Qhov no yog choke hitch - thiab nws tuaj yeem yog qhov kev daws teeb meem zoo, tab sis tsuas yog thaum ua kom raug.

 

Lishenflex  tau tsim cov khoom siv hluavtaws rau ntau tshaj ob xyoo lawm, thiab peb qhov kev paub dhau los qhia tau hais tias choke hitches yog cov feem ntau siv cov hlua khi tsis raug cai. Lub choke hitch zoo nkaus li yooj yim, tab sis nws daim ntawv thov kev nyab xeeb yog nyob ntawm kev nkag siab txog kev txo qis, lub kaum sab xis kom zoo, thiab qhov mob sling. Raws li kev lag luam cov ntaub ntawv  los ntawm EN 1492-1-raws li sling manufacturers, lub choke hitch peev xwm yog 0.8-lub ntsiab lus ib sling rated rau 1 tuj nyob rau hauv ib tug ntsug nqa tau tsuas yog yam xyuam xim nqa 800 kg nyob rau hauv ib tug choke hitch.

 

Choke Hitch yog dab tsi?

Lub choke hitch yog ib qho kev teeb tsa rigging qhov twg lub sling yog qhwv nyob ib ncig ntawm lub load, thiab ib tug kawg ntawm lub sling yog dhau los ntawm qhov opposite qhov muag los yog haum. Lub load yog ces lifted, ua rau lub sling kom nruj nyob ib ncig ntawm lub load. Qhov no tsim cov nyhuv cinching  uas ruaj khov thiab tiv thaiv slippage.

 

Raws li tau piav qhia hauv OSHA Cov Lus Qhia ntawm Kev Siv Sling Zoo , lub choker hitch yog tsim rau cov khoom uas nyuaj rau kev sib npaug lossis ruaj ntseg nrog kev nqa ncaj nraim. Lub choker hitch tuav lub load ruaj ntseg los ntawm nruj ib ncig ntawm nws. Txawm li cas los xij, OSHA qhia meej meej tias nyob rau hauv lub choke hitch, choke point yuav tsum tsuas yog nyob rau hauv lub cev sling, tsis txhob ntawm ib tug splice los yog haum.

 

Lub  koom haum Rigging  sau tseg tias choke hitch yog ib qho ntawm peb qhov tseem ceeb sling hitches, nrog rau ntsug thiab pob tawb hitches, thiab feem ntau yog siv thaum lub load tsis muaj cov ntsiab lus txuas.

 

Capacity Reduction hauv Choke Hitch

Qhov tseem ceeb tshaj plaws hauv kev siv choke hitch yog txo lub peev xwm. Lub sling qhov ntsuas kev ua haujlwm load txwv yog siab tshaj plaws nyob rau hauv txoj kab ncaj nraim rub. Thaum siv nyob rau hauv ib tug choke hitch, lub peev xwm yog txo ho.

 

Raws li OSHA Kev Taw Qhia ntawm Kev Nyab Xeeb Sling Siv , qhov ntsuas qhov hnyav rau lub sling nyob rau hauv lub choke hitch yog txiav txim los ntawm cov chaw tsim khoom sling thiab yog raws li lub kaum sab xis ntawm choke. OSHA hais tias lub peev xwm choke hitch siv tau tias lub kaum sab xis ntawm lub choke yog 120 degrees lossis ntau dua. Rau lub kaum sab xis ntawm choke tsawg dua 120 degrees, qhov ntsuas ntsuas yuav tsum tau txo qis ntxiv raws li tus neeg tsim khoom lag luam cov lus pom zoo.

 

Kev sib piv daim ntawv muaj peev xwm (raws li EN 1492-1 polyester tiaj tiaj sling):

 

Tau qhov twg los: EN 1492-1 cov ntaub ntawv muaj peev xwm los ntawm CEREX thiab Mennens

 

Raws li cov lus qhia, qhov choke hitch factor (KL) yog 0.8 nyob rau hauv EN 1492-1, sawv cev rau 20% muaj peev xwm txo qis piv rau ntsug hitch.

 

Thaum twg Choke Hitch tsim nyog?

Lub choke hitch yog tsim nyog nyob rau hauv tej yam xwm txheej:

 

1.Loads yam tsis tau txhais cov ntsiab lus txuas - cylindrical loads, kav dej, rebar bundles, thiab pob zeb ua ke

 

2.Loads uas yuav tsum tau ua kom ruaj ntseg - tiv thaiv kev swb thaum nqa lossis tig

 

3. Ib ceg nqa nqa - qhov twg lub pob tawb tsis ua tau

 

Raws li tau sau tseg los ntawm Medeer Lifting , lub choke hitch yog qhov muaj txiaj ntsig zoo rau kev tuav cov khoom ruaj ntseg tab sis tsis tshua muaj kev ruaj ntseg dua li ntsug hitch thiab tuaj yeem ua rau cov hlua khi yog tias siv tsis raug. Tsuas yog cov hlua khi uas tsim los rau kev siv choke hitch yuav tsum tau siv rau hauv qhov kev teeb tsa no, thiab cov hlua yuav tsum tau kuaj xyuas kev puas tsuaj ua ntej thiab tom qab siv txhua.

 

Kev xyaum zoo tshaj plaws:  Hauv qhov choke hitch, choke point yuav tsum tau muab tso rau ntawm lub sling lub cev - tsis txhob ntawm lub qhov muag, splice, los yog haum. Lub kaum sab xis ntawm choke yuav tsum yog 120 ° lossis ntau dua kom tswj tau qhov muaj peev xwm puv 0.8.

 

Kev txiav txim siab txog kev nyab xeeb tseem ceeb

Tsis txhob siv lub choke hitch yog tias:

 

● Cov hlua khi muaj kev txiav, puas, lossis kev puas tsuaj rau hauv qhov chaw uas yuav ua rau choke

 

● Lub kaum sab xis yog tsawg dua 120 ° yam tsis muaj peev xwm txo tau

 

● Lub load muaj cov npoo ntse uas tuaj yeem txiav cov hlua khi (siv kaum tiv thaiv)

 

● Cov hlua yog twisted lossis kinked - qhov no ua rau cov ntsiab lus tsis sib xws

 

● Lub sling daim ntawv cim npe ploj lawm lossis tsis muaj npe - koj tsis tuaj yeem txheeb xyuas qhov muaj peev xwm ntsuas

 

OSHA txwv tsis pub meej meej:

 

● Knotted slings (tsis pub luv los yog lengthening los ntawm knotting los yog twisting yog tsis tso cai)

 

● Siv ib txoj hlua khi hauv qhov choke hitch nrog lub choke point ntawm qhov sib txuas lossis haum

 

● So cov loads ntawm txoj hlua

 

● Rub ib txoj hlua khi los ntawm kev thauj khoom thaum lub thauj khoom tau so ntawm txoj hlua

 

Lishenflex 's kev sim kuaj pom tseeb tias cov hlua khi nrog kev puas tsuaj me me-xws li kev puas tsuaj hauv cheeb tsam lossis kev txiav ntug-kev ua kom nrawm nrawm rau hauv choke hitch configurations vim yog lub zog muaj zog ntawm qhov choke point. Qhov no yog vim li cas kev siv ua ntej thiab nquag tshuaj xyuas ib ASME B30.9 yog qhov tseem ceeb tshwj xeeb rau cov hlua siv hauv choke hitches.

 

Kev soj ntsuam yuav tsum tau siv Choke Hitch

Slings siv rau hauv choke hitches yuav tsum tau tshuaj xyuas ntau zaus dua li cov uas siv tshwj xeeb hauv kev nqa ntsug. ASME B30.9  yuav tsum tau kuaj peb theem:

 

Cov txheej txheem tshem tawm tseem ceeb raws li ASME B30.9  rau cov slings tiaj tus siv hauv choke hitches:

 

● tawg los yog hnav stitching nyob rau hauv load-bearing splices

 

● Acid lossis caustic hlawv

 

● Pov thawj ntawm kev puas tsuaj thaum tshav kub kub

 

● Cov qhov los yog kua muag uas nthuav tawm cov xov paj tseem ceeb—tshwj xeeb tshaj yog ntawm qhov choke

 

● Kev hnav ntau dhau

 

● Knots nyob rau hauv lub cev sling-knotting yog txwv tsis pub nyob rau hauv OSHA

 

● Discoloration los yog nkig qhov chaw qhia txog tshuaj lom neeg los yog UV puas

 

Cov ntsiab lus thiab cov lus pom zoo

Ib txoj hlua tiaj tiaj  tuaj yeem siv tau rau hauv kev teeb tsa choke hitch, tab sis daim ntawv thov yuav tsum tau ua kom ceev faj thiab muaj peev xwm.

 

Cov ntsiab lus tseem ceeb:

 

1.Qhov muaj peev xwm txo qis yog qhov sib tham tsis tau - ib qho kev cuam tshuam cuam tshuam txo WLL rau 80% ntawm txoj kab ntsug raws li EN 1492-1

 

2.Choke lub kaum ntse ntse - tuav 120 ° lossis ntau dua rau tag nrho 0.8 yam; txo lub peev xwm rau cov ces kaum me me ib qho kev taw qhia cov chaw tsim khoom

 

3.Tsis txhob choke rau ntawm qhov sib txuas lossis haum - lub choke point yuav tsum yog ntawm lub cev hlua

 

4.Tshuaj xyuas ua ntej thiab tom qab siv -choke hitches concentrates kev ntxhov siab; tshawb xyuas qhov kev puas tsuaj hauv zos

 

5.Siv kaum tiv thaiv - rau kev thauj khoom nrog cov npoo ntse

 

Lishenflex  tsim cov hlua khi hlua khi nrog lub qhov muag ntxiv thiab cov cim muaj peev xwm ua kom pom tseeb, ua raws li EN 1492-1 thiab ASME B30.9 cov qauv. Peb cov khoom raug sim rau txhua qhov kev teeb tsa hitch, suav nrog choke hitches, thiab peb muab kev soj ntsuam kev cob qhia los txhawb kev nyab xeeb rigging.

 

Yog tias koj xav tau kev pab txiav txim siab seb koj cov hlua khi tam sim no puas haum rau daim ntawv thov choke hitch - lossis xav tau kev taw qhia txog kev suav cov peev txheej rau koj qhov tshwj xeeb nqa geometry - thov xa email rau sales@lishenflex.com , thiab peb pab neeg ua haujlwm yuav muab kev txhawb nqa ib leeg.