Dab tsi yog Txoj Kev Thiab Cov Txheej Txheem Rau 50 Tuj Crane Maintenance? — Ntu 1

Dab tsi yog cov txheej txheem thiab cov txheej txheem rau 50 tuj crane tu? --Part 1

50 tuj cranes tau siv dav hauv peb lub neej, thiab nquag siv hauv kev tsim kho engineering. Yog li koj puas paub yuav kho lub crane li cas? Hauv qab no yog cov txheej txheem txij nkawm crane muab tso ua ke rau koj. vam tias qhov no yuav pab tau.

 

 

50 tuj crane tu txoj kev

 

1. 50 tuj crane txij nkawm tus qauv nuv

 

① Disassemble thiab tshuaj xyuas cov hooks, ncej, kab, pulleys, thiab bearings thiab ntxuav thiab lubricate lawv. Tsis muaj kab nrib pleb hauv cov hooks, kab teeb, thiab rub lub shafts. Cov threaded qhov chaw yuav tsum tsis txhob xoob. Cov bearings tsis zoo. Tig lub pulleys. Tsis muaj kab nrib pleb nyob rau hauv cov xov retraction cheeb tsam. Cov uas muaj riam los yog tawg yuav tsum tau hloov;

 

② Txheeb xyuas qhov hnav ntawm qhov chaw txaus ntshai. Yog tias qhov hnav ntawm qhov txaus ntshai tshaj 10% ntawm thawj qhov siab, nws yuav tsum tau hloov;

 

③ Kev xeem ntawm tus nuv. Tom qab overhaul, tus nuv yuav tsum tau kuaj thiab tshuaj xyuas. Tus nuv yuav tsum raug ncua rau 10 feeb ntawm 1.25 npaug ntawm qhov ntsuas load. Lub elastic qhib ntawm lub qhov ncauj qhov ncauj yuav tsum tsis txhob ntau tshaj 0.25% ntawm tus nuv lub qhov ncauj loj. Yuav tsum tsis muaj deformation mus tas li los yog tawg tom qab unloading. ;

 

④ Kev saib xyuas ntawm phaj nuv. Tom qab lub phaj nuv yog riveted, qhov sib txawv ntawm daim hlau. Nws yuav tsum tsis txhob loj dua 0.3mm.

 

2. 50 tuj crane hlau hlua kho

 

① Kev tshuaj xyuas ntawm cov xov hlau tawg: Yog tias tus lej ntawm cov xov hlau tawg hauv ib qho twisting ntau tshaj 10% ntawm tag nrho cov xov hlau hlau, lawv yuav tsum tau muab pov tseg raws li tus qauv;

 

② Radial hnav: Yog hais tias lub radial hnav ntawm cov hlau hlau tshaj 40% ntawm tus thawj txoj kab uas hla, tag nrho cov hlua hlau yuav tsum tau muab pov tseg;

 

③ Kev tshuaj xyuas qhov deformation: Yog tias txoj kab uas hla ntawm txoj hlua hlua khi mus rau 70% ntawm txoj hlua txoj kab uas hla, cov hlua hlua raug nthuav tawm, thiab yog tias txoj hlua tawg lawm, cov hlua hlau yuav tsum tau muab pov tseg thiab hloov nrog ib qho tshiab;

 

④ Hlau hlua lubrication: Ua ntej lubrication, ntxuav nws nrog txhuam hlau, roj av, thiab lwm yam, thiab siv cov hlua hlau roj hmab (Q/SY1152-65) lossis hluavtaws graphite calcium-based lubrication. Nws raug nquahu kom muab cov ntiv tes zawv zawg (SYA1405-65) rau hauv saturation.

 

 

3. 50 tuj crane pulley thaiv kev kho

 

① Disassemble, huv si thiab tshuaj xyuas lub pulley thaiv thiab xyuas cov kab nrib pleb. Lub pulley ncej yuav tsum tsis txhob muaj cov kab nrib pleb, cov ntawv xov xwm yuav tsum tsis txhob hnav 30% ntawm tus thawj txoj kab uas hla, thiab lub taper yuav tsum tsis pub tshaj 5%. Yog tias nws tshaj qhov nqi no, nws yuav tsum tau hloov;

 

② Thaum tshuaj xyuas lub ruby ​​zawj, siv tus qauv los kuaj xyuas lub rubey zawj. Kev hnav radial yuav tsum tsis pub tshaj 30% ntawm phab ntsa thickness, txwv tsis pub nws yuav tsum tau muab pov tseg. Cov uas tsis tshaj tus qauv tuaj yeem kho tau. Tom qab kev kho dua tshiab, siv cov qauv los kuaj xyuas. Hauv qab thiab sab nraub qaum yuav tsum tsis txhob siab tshaj 0.5mm. Qhov sib txawv ntawm txoj kab nruab nrab ntawm lub log zawj thiab qhov nruab nrab ntawm lub rubey yuav tsum tsis txhob siab tshaj 0.2 hli. Qhov sib txawv yuav tsum tsis txhob ntau tshaj 1 hli;

 

③ Kev tshuaj xyuas ntawm lub qhov taub. Tom qab kev kho dua tshiab, lub qhov taub yog tso cai kom muaj qhov tsis xws luag tsis pub tshaj 0.25CM2, thiab qhov tob yuav tsum tsis pub tshaj 4 hli;

 

④ Kev sib dhos. Tom qab sib dhos, nws yuav tsum muaj peev xwm tig tau yooj yim ntawm tes, thiab lub viav vias sab nraud yuav tsum tsis pub tshaj D / 1000. D - Nominal txoj kab uas hla ntawm pulley.

 

4. 50 tuj crane nruas kho

 

① Cov hlua hlua ntawm cov hlua yuav tsum tau rov ua dua yog tias txoj hlua hlua hnav ntau dua 2 hli. Tom qab kev kho dua tshiab, txoj hlua hlua yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm daim duab kos, tab sis lub nruas phab ntsa thickness yuav tsum tsis pub tsawg dua 81% ntawm thawj thickness;

 

② Yuav tsum tsis muaj kab nrib pleb ntawm lub nruas nto, tsis muaj qhov pom tseeb poob ntawm qhov sib tw, thiab lub siab phaj screws yuav tsum tsis txhob xoob;

 

③ Yuav tsum tsis muaj qhov tawg ntawm lub reeling ncej. Tom qab kev kho loj, nws yuav tsum ua kom tau raws li qhov xav tau ntawm kev kos duab. Thaum hnav ntau tshaj 5% ntawm nominal txoj kab uas hla, tshiab yuav tsum tau hloov;

 

④ Thaum lub sij hawm sib dhos thiab kev teeb tsa, qhov nruab nrab ntawm cov ncej reel yuav tsum sib npaug mus rau qhov chaw txhawb nqa ntawm lub trolley ncej, thiab qhov sib txawv yuav tsum tsis txhob siab tshaj 1mm / m. Tom qab lub reel tau teeb tsa, qhov sib txawv ntawm qhov nruab nrab ntawm ob lub ncej kawg yuav tsum tsis txhob siab tshaj 0.15mm.

 

 

5. 50 tuj crane log kho

 

① Lub log tsheb yog hnav. Thaum lub log tread coj ntau tshaj 15% ntawm qhov qub thickness, nws yuav tsum tau hloov nrog qhov tshiab. Yog tias nws tsis tshaj qhov nqi no, nws tuaj yeem rov ua dua thiab kho cua sov los kho. Lub log txoj kab uas hla yuav tsum nyob rau hauv lub kam rau ua ntau yam, thiab nto quenching hardness yog B300 ~ 500. Rau lub log diameters ntau dua 400mm, quenching txheej thickness yuav tsum siab tshaj 20mm; Thaum lub log txoj kab uas hla yog tsawg dua 400 hli, quenching txheej thickness yuav tsum tsis txhob tsawg tshaj li 15 hli;

 

② Cov kab sib txawv ntawm ob lub log sib koom ua ke. Txoj kab uas hla ntawm lub log tsav yuav tsum tsis pub tshaj {{0}}.1% ntawm nominal txoj kab uas hla, thiab txoj kab uas hla ntawm lub log tsav yuav tsum tsis pub tshaj {0.2%. Txoj kab uas hla ntawm lub log hluav taws xob hoist yuav tsum tsis pub tshaj 1% ntawm nominal txoj kab uas hla. Qhov sib txawv ntawm txoj kab uas hla ntawm lub log tsav yuav tsum tsis pub tshaj 1% ntawm nominal txoj kab uas hla. Nws yuav tsum tsis txhob ntau tshaj 0.2%; lub log txoj kab sib txawv ntawm cov hluav taws xob hoist yuav tsum tsis pub tshaj 1% ntawm nominal txoj kab uas hla;

 

③ Rim hnav, tawg, thiab deformation: Lub ntug hnav mus txog 50% ntawm qhov qub thickness los yog qhov chaw tawg tshaj 30mm2 thiab yuav tsum tau muab pov tseg. Lub ntug thickness yuav tsum tau muab pov tseg yog hais tias lub dabtsi yog khoov thiab deformation mus txog 20% ​​ntawm tus thawj thickness;

 

④ Log tawg: Yog tias muaj cov kab nrib pleb hauv lub log, nws yuav tsum muab pov tseg;

 

⑤ Tread ovality: Log nrog tread ovality ncav cuag 1 hli yuav tsum tau muab pov tseg;

 

⑥ Lub log sib dhos: Lub log sib dhos yuav tsum muaj peev xwm tig tau yooj yim ntawm tes. Ob peb lub log ntsia ntawm tib lub thav duab sib npaug yog nyob rau hauv tib lub dav hlau ntsug, thiab qhov tso cai sib txawv yog 1 hli.

 

 

6. 50 tuj crane qag thiab kho cov kabmob

 

① Kev saib xyuas ntawm phau ntawv journal: lub ovality thiab conicity ntawm phau ntawv journal tom qab overhaul yuav tsum tsis txhob ntau tshaj 0.03mm;

 

② Kho cov kab nrib pleb: Siv lub tshuab magnetic los yog ultrasonic flaw detector los tshuaj xyuas cov ncej. Yuav tsum tsis muaj kab nrib pleb ntawm tus ncej, thiab qhov khawb qhov tob yuav tsum tsis pub tshaj 0.03mm;

 

③ Kev saib xyuas ntawm dov bearings. Lub axial clearance nruab nrab ntawm lub puab thiab sab rings ntawm tapered menyuam bearings tau tso cai nyob rau hauv ntau ntawm {{0}}.03 ~ 0.18mm. Kev hloov kho tshem tawm ntawm cov kabmob caj pas yuav tsum nyob hauv thaj tsam ntawm 0.5 ~ 1.5 hli.