1. Qhov xwm thiab tus naj npawb ntawm cov filaments tawg
Zuag qhia tag nrho kev tsim ntawm lub tshuab hoisting tsis tso cai rau cov hlua hlau kom muaj lub neej ntev ntev.
Rau 6-strand thiab 8-strand xaim hlua, hlau tawg feem ntau tshwm sim ntawm qhov chaw. Qhov no tsis yog qhov teeb meem nrog ntau txoj hlua khi (cov qauv ntau cov hlua), qhov twg feem ntau ntawm cov hlua hlau tawg tshwm sim sab hauv thiab yog li "tsis pom" tawg.
Cov lus hauv qab no siv cov ntsiab lus no rau hauv tus account, yog li thaum txiav txim siab ua ke nrog cov ntsiab lus hauv kab lus 2.5.2 ~ 2.5.11, nws yog qhov tsim nyog rau cov hlua hlau ntawm ntau yam qauv.
2. Txoj hlua tawg kawg
Thaum muaj cov hlau tawg ntawm lossis ze ntawm txoj hlua kawg, txawm tias tus lej me me, nws qhia tau hais tias qhov kev ntxhov siab nyob rau hauv ib feem yog siab, nws yuav tshwm sim los ntawm kev txhim kho tsis raug ntawm txoj hlua kawg, thiab qhov ua rau. qhov kev puas tsuaj yuav tsum raug txheeb xyuas. Yog tias qhov ntev ntawm txoj hlua tso cai, ib feem ntawm cov hlau tawg yuav tsum raug txiav tawm thiab rov txhim kho kom tsim nyog.
3. Hauv zos aggregation ntawm tawg filaments
Yog tias cov xaim tawg nyob ze ua ke los ua ib qho kev sib sau hauv zos, cov hlua hlau yuav tsum tau muab pov tseg. Yog tias cov hlua tawg zoo li no tau muaj zog nyob rau hauv qhov ntau ntawm txoj hlua ntev tsawg dua 6d, los yog muaj zog nyob rau hauv ib qho hlua hlua, ces cov hlua hlau yuav tsum tau muab pov tseg txawm tias cov xov hlau tawg yog tsawg dua li tus nqi teev.
4. Qhov nce ntawm cov hlau tawg hauv qee lub sijhawm siv, qaug zog yog qhov ua rau cov hlua hlau puas tsuaj, thiab cov hlau tawg yog tom qab siv lub sijhawm, tab sis cov xov hlau tawg maj mam nce, thiab lub sijhawm luv luv thiab luv dua. Nyob rau hauv rooj plaub no, txhawm rau txiav txim siab tus nqi ntawm kev nce hauv cov xov hlau tawg, qhov nce ntawm cov xov hlau tawg yuav tsum tau ua tib zoo tshuaj xyuas thiab sau tseg. Qhov "txoj cai" no tuaj yeem siv los txiav txim siab txog hnub ntawm kev tshem tawm cov hlua hlau yav tom ntej.
5. Cov hlua tawg
Yog tias muaj qhov tawg ntawm tag nrho cov hlua, cov hlua hlau yuav tsum tau muab pov tseg.
6. Txo txoj hlua txoj kab uas hla vim kev puas tsuaj rau cov hlua hlua
Cov hlua hlau yuav tsum tau muab pov tseg thaum cov tub ntxhais ntawm txoj hlua puas lossis cov tub ntxhais (lossis cov hlua sab hauv hauv cov txheej txheem ntau txheej) tawg, ua rau muaj qhov txo qis ntawm txoj hlua txoj kab uas hla. Kev puas tsuaj me me, tshwj xeeb tshaj yog thaum muaj kev ntxhov siab nyob rau hauv txhua tus neeg cov strands zoo sib npaug, tej zaum yuav tsis pom meej nrog cov qauv kev sim li niaj zaus. Txawm li cas los xij, qhov xwm txheej no tuaj yeem ua rau lub zog ntawm cov hlua hlau kom txo qis heev. Yog li ntawd, yog tias muaj cov cim qhia ntawm kev puas tsuaj rau sab hauv, sab hauv ntawm cov hlua hlau yuav tsum tau kuaj xyuas kom paub. Thaum qhov kev puas tsuaj raug pov thawj, cov hlua hlau yuav tsum tau muab pov tseg.
7. Txo elasticity
Qee zaum, feem ntau cuam tshuam nrog kev ua haujlwm ib puag ncig, qhov elasticity ntawm cov hlua hlau yog txo qis, thiab nws tsis muaj kev nyab xeeb ntxiv mus siv nws.
Qhov txo qis hauv elasticity ntawm cov hlua hlau yog qhov nyuaj rau kev kuaj xyuas thiab cov neeg soj ntsuam yuav tsum nrhiav tswv yim los ntawm cov kws paub txog hlua hlau yog tias lawv muaj kev tsis ntseeg. Txawm li cas los xij, qhov txo qis hauv elasticity feem ntau yog nrog rau cov hauv qab no:
ib. Txo txoj hlua txoj kab uas hla;
b. Lub twist nrug ntawm txoj hlua hlau yog elongated;
c. Vim muaj kev sib koom ua ke ntawm txhua qhov, muaj qhov tsis muaj qhov chaw ntawm cov hlau hlau thiab nruab nrab ntawm cov hlua hlua;
d. Fine xim av hmoov tshwm nyob rau hauv lub recesses ntawm cov hlua strands;
Txawm hais tias tsis muaj cov hlau tawg tau pom, txoj hlua hlau tau pom tseeb tsis yooj yim rau khoov thiab txoj kab uas hla tau txo qis ntau dua li qhov tshwm sim los ntawm kev hnav ntawm cov hlau ib leeg. Qhov teeb meem no tuaj yeem ua rau muaj kev puas tsuaj tam sim ntawd nyob rau hauv dynamic load, yog li nws yuav tsum tau muab pov tseg tam sim ntawd.
8. Sab nrauv thiab sab hauv muaj ob hom kev hnav thiab tsim kua muag:
ib. Internal hnav thiab siab pits
Qhov xwm txheej no yog tshwm sim los ntawm kev sib txhuam ntawm tus kheej cov hlua thiab cov xaim hauv txoj hlua, tshwj xeeb tshaj yog thaum cov hlua hlau raug khoov.
b. Sab nrauv hnav
Kev hnav thiab tsim kua muag ntawm cov hlau nto ntawm cov hlua sab nrauv ntawm cov hlua hlau yog tshwm sim los ntawm nws txoj kev sib txhuam nrog cov hlua hlua ntawm lub pulley thiab lub nruas nyob rau hauv qhov kev txiav txim siab. Qhov tshwm sim no yog tshwj xeeb tshaj yog pom tseeb thaum lub lifting acceleration thiab deceleration zog, kev sib cuag ntawm cov hlua hlau thiab lub pulley yog tshwj xeeb tshaj yog pom tseeb, thiab sab nraud steel hlau yog hauv av rau hauv ib lub tiaj tus.
Lub lubrication tsis txaus lossis tsis raug, nrog rau cov hmoov av thiab cov xuab zeb, tuaj yeem ua rau hnyav hnyav.
Abrasion txo qhov ntu ntu ntawm cov hlua hlau thiab yog li lub zog. Thaum txheej txheej steel hlau hnav mus txog 40% ntawm nws txoj kab uas hla, cov hlua hlau yuav tsum tau muab pov tseg.
Thaum txoj kab uas hla ntawm txoj hlua hlau txo qis los ntawm 7% los yog ntau dua tus txheeb ze ntawm nominal txoj kab uas hla, cov hlua hlau yuav tsum tau muab pov tseg txawm tias tsis pom cov hlau tawg.
9. Sab nrauv thiab sab hauv corrosion
Corrosion yog tshwj xeeb tshaj yog tshwm sim nyob rau hauv dej hiav txwv los yog nyob rau hauv ib tug industrially polluted cua. Nws tsis tsuas yog txo cov cheeb tsam hlau ntawm cov hlua hlau thiab yog li txo lub zog tawg, tab sis kuj ua rau nto roughness thiab kab nrib pleb los ntawm nws kom ua rau qaug zog. Kev xeb hnyav kuj tuaj yeem ua rau txo qis elasticity ntawm cov hlua hlau.
(1) Sab nraud corrosion
Corrosion ntawm cov hlau hlau sab nraud tuaj yeem pom ntawm qhov muag liab qab. Thaum muaj qhov tob tob ntawm qhov chaw, cov hlau yuav tsum tau muab pov tseg thaum nws xoob heev.
(2) Sab hauv corrosion
Sab hauv corrosion yog qhov nyuaj dua los kuaj xyuas dua li qhov corrosion sab nraud uas feem ntau nrog nws. Txawm li cas los xij, cov phenomena hauv qab no tuaj yeem txheeb xyuas tau:
ib. Hloov txoj kab uas hla ntawm txoj hlua hlau. Txoj kab uas hla ntawm txoj hlua hlau feem ntau yog me me ntawm qhov khoov uas mus ncig ntawm lub pulley. Txawm li cas los xij, rau cov hlua hlau nyob rau hauv qhov chaw ruaj khov, txoj kab uas hla ntawm txoj hlua hlau feem ntau nce vim qhov xeb ntawm cov hlua sab nrauv.
b. Qhov sib txawv ntawm cov hlua sab nrauv ntawm cov hlua hlau yog txo, thiab nws feem ntau nrog cov hlua tawg ntawm cov hlua sab nraud. Yog tias muaj cov cim qhia ntawm kev txhim kho sab hauv, cov hlua hlau yuav tsum raug tshuaj xyuas sab hauv los ntawm tus saib xyuas. Yog tias muaj kev cuam tshuam loj heev hauv kev pom tseeb, cov hlua hlau yuav tsum tau muab pov tseg tam sim ntawd.
