Saw hoist - saw hoist yog ib tug ntaus ntawv ...

Burton - yog lub mechanism uas los ntawm lub cargo lifting. Nws muaj ib tug los yog ntau pawg ntawm blocks lub hnab ntawv hlua. Lo lus "Burton" los ntawm lub Greek polyspastion. Qhov no lub sij hawm txhais tau tias "rub-on ob peb ropes." Lub ntsiab muaj nuj nqi ntawm saw hoist yog ua kom lub nqa peev xwm ntawm lub ntsiab iav.

Nyob rau hauv lwm yam lus, tus ntaus ntawv muab ib tug nce nyob rau hauv hwj chim. Txawm li cas los, qhov rov qab nyhuv yog los txo cov kev siv saw hoist lifting ceev. Koj muaj peev xwm kuj yeej nyob rau hauv ceev vim muaj ib tug poob rau hauv lub zog. Tab sis xws li pulley blocks yog siv ntau tsawg zaus. Nyob rau hauv txhua rooj plaub, lub hauv paus ntsiab lus ntawm tus dais muaj nyob rau hauv ib tug zog kev txiav txim.

mechanism ntaus ntawv

Burton - ib tug lifting ntaus ntawv, uas tso cai rau koj los muaj hwj chim tshaj li cov winch ob peb lub sij hawm lub nqa. Nyob rau hauv lwm yam lus, qhov no mechanism tsub kom lub load ntaus ntawv. Kev siv cov saw hoist ua rau nws tau tsa ib tug hnyav load nrog ib tug winch, muaj ib tug me me muaj peev xwm. Nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias cov kev ceev ntawm lifting hnyav lug yog txo kom ntau li ntau raws li yuav ua tau tiav nce nyob rau hauv lub peev xwm.

lub sij hawm mechanism

Burton yog yuav tsum tau rau lifting hnyav loads nrog rau daim ntawv thov ib tug tsawg kawg nkaus ntawm lub dag zog. Qhov yooj yim tsim saw hoist yog tsim kom ib tug ntug ntawm cov hlua yog txuas mus rau lub nruas, thiab cov kev tshem tawm load yog nyob rau ntawm cov lus rov rau thaum xaus ntawm txoj hlua. Devices muaj ib tug ntau tsim muaj xws li ob peb tsau thiab rooj noj chais.

Nyob rau hauv txhua hnyav yuav tsum xav txog qhov luaj li cas ntawm blocks thiab ib tug hlua kab uas hla. Lub load muaj loj loj, thaum nws muaj dai rau cov hlua load nce. Rau xws li ib tug mechanism yog yus muaj los ntawm ceev ceev coj. Nyob rau hauv cov ntaub ntawv no, qhov yuav tsum tau voltage txo nyob rau hauv cov hlua. Yog li ntawd, rau dai hnyav loads siv ob los yog plaub hlua. Nws yog tseem tau mus siv ib cov saw hoist complex tsim.

hauv paus ntsiab lus ntawm cov lag luam

Txiv neej, tsis muaj feem xyuam rau cov chaw thau khoom, lub npe ntawm no mechanism zoo li to taub tsis tau. Tab sis nyob rau hauv qhov tseeb, nws tackles - nws yog heev yooj yim lifting mechanism uas yuav tsim yuav luag txhua leej txhua tus. Lub hauv paus ntsiab lus ntawm no ntaus ntawv yog tsis tshua muaj tej yam yooj yim thiab tau raug kawm nyob rau hauv lub tsev kawm ntawv physics qhia. Thiab lub tswvyim ntawm xws li ib tug me me "crane" yog yooj yim heev.

saw hoist tsim muaj ntau pab pawg ntawm cov blocks sau nyob rau hauv ib tug tshwj xeeb yas dhos. Thiab lawv tig lub hnab ntawv hlua los yog hlua. Txawm xws li ib tug yooj yim tsim yuav siv heev tshaj los mus ua kom tus quab yuam thov kom txos los yog lifting loads. Tsis tas li ntawd ib tug yooj yim pulley thaiv kev kho muaj freight units. Lawv yuav ua tau cov nram qab no hom:

• multiroll los yog Idler;
• tsau los yog mobile.

Lub rub hlua quab yuam nyob rau hauv cov ntaub ntawv no yog kiag li nyob rau hauv lub xov tooj ntawm hlua yarns siv nyob rau hauv kev tsim kho.

Nyob rau hauv dab tsi thaj chaw no yog siv ntaus ntawv?

Saw hoist siv los tsa thiab tsiv mus nyob rau load nyob rau hauv tus neeg mob thaum nws yog tau siv tsuas yog tus lub dag lub zog ntawm tus txiv neej thiab cov nyiaj tsawg them nyiaj yug mechanisms. Tsis tas li ntawd tackle - yog ib tug tseem ceeb ntawm winches, cranes thiab lwm yam txhais tau tias ntawm mechanization.

Vim li no, cov pab kiag li lawm yog siv nyob rau hauv txhua qhov chaw, qhov chaw uas nyob rau hauv txhua txoj kev thov lifting mechanisms: los ntawm tsev neeg paub tab thiab xaus nrog hnyav kev lag luam.

Yog li ntawd nyob rau hauv dab tsi hauv paus nws yog siv tau pib lis nrog? Lub lag luam ntawm no ntaus ntawv yog raws li nyob rau hauv lub pas txoj cai, thaum winning nyob rau hauv cov nyhuv tau ib tug poob rau hauv lub deb. Vim qhov no kuj yog heev yooj yim, yuav ua rau tsoo rau lawv txhais tes tsis tau yooj yim. Koj yuav tsum tau tsuas yog ob tug Idler unit.

Yuav kom nqa lub load ib tug tej yam hnyav los ntawm ib cov saw hoist yog tsim nyog los ua ib qho kev rau siab, ib nrab ntawm nws loj. Peb yuav tsum tsis txhob hnov qab txog qhov ntev ntawm txoj hlua siv. Nws yuav tsum ob zaug lub qhov siab uas cov khoom yuav mus. Nws yuav tsum tau muab sau tseg hais tias tackles nrog rau feem ntau yooj yim ntaus ntawv hu ua "tackles ob mus rau ib tug", raws li lawv nce tus quab yuam sib sib zog tsa los ntawm ib nrab. Tus tsim nrog peb blocks, ntsig txog, muab nce zog nyob rau hauv peb lub sij hawm.

multiplicity saw hoist

Nws yuav tsum tau muab sau tseg tias muab xam los ntawm cov saw hoist muaj ib tug heev ib qho tseem ceeb luag hauj lwm. Tom qab tag nrho, lub mechanism yog tsis ua hauj lwm nyob rau hauv zoo tagnrho tej yam kev mob. Nws yog raug rau kev sib txhuam rog sawv thaum lub sij hawm xaav ntawm lub cable Sheave. Tsis tas li ntawd tsis sib haum xeeb rog yog generated thaum lub sij hawm kev sib hloov ntawm lub menyuam, tsis muaj teeb meem dab tsi bearings siv nyob rau ntawd.

Yuav kom txiav txim seb lub tensile quab yuam thov hlua tsis muaj losses vim kev sib txhuam tsim nyog luj ntawm lub load muab faib los ntawm lub multiplicity ntawm saw hoist. Nyob rau hauv nws yuav tsum tau to taub tias cov nqi ntawm txoj hlua strands tuav lub cargo. Los yog peb yuav nco ntsoov txog kev sib txhuam. Nws kuj txiav txim seb tus efficiency ntawm lub saw hoist.

Nws yuav txo tau, siv lub siab zoo blocks thiab cables, raws li zoo raws li los ntawm qhov zoo kawm precluding ruaj khoov rau ob sab thiab overlaps.

Rau hnub tim pulley schemes kawm txawm nyob rau hauv lub tsev kawm ntawv physics kawg. Lawv pab los ua qhov no siv tsis tau ntau npaum li cas. Tsis tas li ntawd, cov nram qab no cov khoom yuav tsum tau muas:

• haum;
• hlua;
• WINCH.

Yuav ua li cas cov qauv ntawm cov pab kiag li lawm nyob ua ib ke?

Yuav kom tsim ib tug yooj yim qauv xwb yuav tsum muaj ib tug block. Kev siv cov no mechanism muab ob zaug lub nce nyob rau hauv lub dag lub zog. Qhov no txhais tau tias nyob rau hauv thiaj li yuav tsa lub load yuav tsum tau ua ntawv thov ob zaug tsawg lub dag zog. Txawm li cas los, nyob rau hauv rooj plaub no tus hlua rau ob zaug raws li ntev. Xws li ib tug saw hoist muaj ib qho ratio ntawm ob mus rau ib tug. Xws li ib tug tsim tej zaum yuav tsis muaj rau lwm saw hoist, raws li ib txwm carbine tej zaum yuav siv xwb.

Thaum siv nyob rau hauv ib tug pulley ntawm ob units yuav muab ntau zog txoj hlua peb kom zoo dua siv force. Muaj kuj yog ib tug muaj nuj nqi ntawm txoj kev ruaj ntseg net, uas yog txhais thaum txoj hlua uas nws txo qis. Nyob rau hauv cov ntaub ntawv no, ob nruj lub clutch los ua ke thiab thaiv lub load.

Yog hais tias lub yav dhau los mechanism rau ntxiv ob tug thaiv, uas koj tau txais ib cov saw hoist ntaus, muab ib tug fourfold nce nyob rau hauv lub dag lub zog. Xws li ib tug mechanism muaj tus piv ntawm plaub mus rau ib tug. Nyob rau hauv no mechanism, ib tug peb lub hlis twg ntawm tus luj yog nyob rau thaum xaus ntawm txoj hlua, thiab tus so ntawm lub load - nyob rau hlua nws tus kheej.

sophisticated tackles

Nws yuav tsum tau muab sau tseg tias kis tau tus mob ntawm kev quab yuam nyob rau hauv ib tug dawb huv tau daim ntawv tsis tau tiav vim tshwm sim ntawm frictional quab yuam. Thaum txoj hlua rubs tiv thaiv lub thaiv poob los ntawm kaum mus rau nees nkaum feem pua ntawm cov applied quab yuam. Yog li ntawd, nyob rau hauv ib tug yooj yim pulley yog tus piv txog 1.8 kg ib kg ntawm load yuav tsum tau rho tawm mus. Ib tug 5-fold pulley thaiv yuav tsim ib tug nce nyob rau hauv hwj chim ib tug me ntsis ntau tshaj li 3 lub sij hawm.

Qhov saum toj no piv qhia hais tias nws yog ua tau rau nce tus naj npawb ntawm cov saw hoist blocks mus rau ib tug tej yam kev txwv, ces qhov opposite nyhuv tej zaum yuav tshwm sim. Txawm li cas los, nyob rau hauv thiaj li yuav nce lub siab tshaj plaws piv, koj muaj peev xwm siv sophisticated tackles.

Qhov no saw hoist yog tsim nyob rau hauv xws li ib tug txoj kev uas tsa lub qhov ceeb thawj tsis tsim ib tug tsim txom rau hauv lub kawg block. Xwb, nws loads cov hlua uas kis tau los ntawm lub tsev. Raws li ib tug tshwm sim, thaum thov thaiv 3 qho kev cob cog rua tackles 2: 1 thiab 3: 1. Nyob rau hauv kev tshawb xav, qhov no muab ib tug sixfold nce nyob rau hauv lub dag lub zog, tab sis nyob rau hauv kev xyaum - nyob rau hauv 4,3 lub sij hawm.

Yuav ua li cas kom tsis txhob sib haum xeeb?

Lub ntsiab teeb meem ntawm saw hoist yog tias nyob rau hauv tus txheej txheem nws muaj los mus kov yeej lub tsis sib haum xeeb rog sawv. Qhov teeb meem no yuav tsum yog cov solved los ntawm kev siv high-zoo ropes, pulley blocks, blocks muaj tus kwj, raws li zoo raws li roj.

Tsis tas li ntawd, muaj sij hawm ntxiv nrog daim ntawv thov kom ntawm tus tsim saw hoist. Piv txwv li, yog tias koj siv ntau tshaj ib shotgun thiab ob tug. Qhov no thiaj li frictional quab yuam, thiab muaj yog ib qho kev nce kink voos kheej-kheej.