Spline txuas. Keyed thiab splined kev sib txuas

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Kev sib txuas spline yog kev sib txuas ntawm poj niam thiab txiv neej nto (ncej-qhov). Splines thiab grooves yog siv, uas, raws li txoj cai, yog teem nyob rau hauv ib tug radial kev txiav txim ntawm qhov chaw koom tes. Qhov kev sib txuas no muaj lub zog txaus thiab ua kom muaj kev sib haum xeeb ntawm cov ncej thiab lub qhov. Lub ntsiab kom zoo dua yog hais tias ib feem yuav tsiv mus nyob rau hauv lub axial kev taw qhia.

Spline txuas: kev faib tawm

Raws li koj nkag siab, muaj ntau txoj hauv kev kom ruaj ntseg ob ntu nrog lub qhov. Hauv qee qhov xwm txheej, cov txheej txheem sib txawv yog siv. Muaj involute spline txuas. Lawv txawv ntawm qhov ncaj-sided sawv daws yuav nyob rau hauv cov duab ntawm cov hniav (tom qab nto) thiab kev nyuaj siab. Lawv muaj ob peb qhov zoo uas tsis tuaj yeem lees paub, xws li kev sib kis ntawm lub zog siab (Nm) thiab siab qhov nruab nrab qhov tseeb raws li qhov hnyav hnyav. Yog tias peb tham txog kev sib txuas ncaj nraim, ces qhov zoo tshaj plaws yog qhov yooj yim ntawm kev tsim khoom thiabpheej yig. Kuj tseem muaj cov duab peb sab, tab sis lawv siv tsawg dua. Feem ntau feem ntau ntawm kev sib tshuam ntawm qhov chaw ruaj khov nrog lub zog me me. Feem ntau lawv pom lawv daim ntawv thov nyob rau hauv nyias-walled bushings. Hauv lawv, kev siv lwm hom kev sib txuas tsis suav tias yog qhov tsim nyog rau ntau qhov laj thawj thev naus laus zis.

Keyed and splined connections

Qee zaum, lub laub lossis iav yuav tsum tau muab tso rau ntawm cov ncej. Yog hais tias ib tug loj torque kis tau tus mob yog xav tau, ces keyed raws li zoo raws li involute spline kev twb kev txuas yog siv. Raws li rau dowels, prismatic sawv daws yuav lug siv, vim yooj yim ntawm installation. Qhov teeb meem tseem ceeb yog tias qee zaum nws yog ib qho tsim nyog yuav tsum ua kom nws txav tau mus rau hauv qhov kev taw qhia axial. Nyob rau hauv rooj plaub no, ib tug clearance haum yog siv, thiab tus yuam sij yog txuas mus rau lub ncej nrog screws. Yog tias koj xav tau los tsim kev sib txuas txhim khu kev qha hauv qhov chaw thauj khoom me me, ces qhov tseem ceeb segmented, uas muaj qhov ntev me me, yog qhov zoo. Qhov sib txawv tseem ceeb ntawm splines yog tias lawv siv cov hniav ntau dua thiab cov lugs me. Kev sib txuas yog ntawm 3 hom: yooj yim-detachable, nruj-detachable thiab tsau. Txhua xyoo, cov txheej txheem ntawm kev ua cov khoom tso cai rau peb kom ua tiav cov txiaj ntsig zoo dua los ntawm kev pom kev thev naus laus zis. Cov no yog qhov chaw nruab nrab qhov tseeb, kev sib hloov ntawm cov khoom seem tsis tau thiab ntau dua.

Cov teeb meem ntawm cardan ncej daws tau li cas?

Tam sim no cia saib qhov ua tau zoo ntawm splines. ATNyob rau hauv cov ntaub ntawv no, lub slot pab hloov qhov ntev ntawm lub ncej, uas yog yuav tsum tau los xyuas kom meej qhov kev sib raug zoo ntawm cov units, thaum lub sij hawm lub installation ntawm uas inaccuracies tau ua. Lubrication yog muab rau kev txhawb nqa bearing thiab lub spline nws tus kheej siv ib tug oiler. Feem ntau siv solidol. Txij li qhov ntev ntawm cardan ncej yog xws li tias nyob rau hauv ntau lub sij hawm lub lubricant tsis ncav cuag tag nrho cov ua hauj lwm kev sib txhuam units, nws yog heev advisable kom txo tau cov raws los ntawm cov roj los yog lwm yam kua ntws. Koj tuaj yeem siv pob tshab ntxig. Lawv yuav ua rau nws muaj peev xwm ua kom pom kev tswj xyuas thiab muab cov roj nplua nyeem raws sij hawm rau chav sib txhuam. Nyob rau hauv thiaj li yuav zawv zawg diav rawg mus ua hauj lwm ntev li ntev tau, ib tug tooj dag insert yog siv, uas yog tucked rau hauv lub spline kev twb kev txuas. Tau kawg, qhov no tuaj yeem txo qhov hnav ntawm ib feem. Nyob rau hauv txoj cai, lub spline sib koom ntawm lub kiv cua ncej yog txhim khu kev qha thiab yooj yim los tswj, tab sis nws tsis yog tsis muaj drawbacks.

Centering Methods

Muaj ntau txoj hauv kev los nruab nrab ntawm txoj kab ncaj nraim. Ib tug ntawm lawv yog sab nraud txoj kab uas hla. Ua li no, lub ncej yog milled thiab tom qab ntawd hauv av raws li sab nraud txoj kab uas hla. Los ntawm txoj kev, qhov no yog qhov pheej yig tshaj plaws thiab zoo tshaj plaws centering txoj kev. Lub tes tsho yog rub mechanically. Txoj kev no yog siv thaum lub bore nto ntawm lub tes tsho tsis tau kho cua sov los yog thermally txhim kho. Yog hais tias peb tham txog kim txoj kev, ces qhov no yog centering ntawm lub puab kab. Qhov tseeb yog tias cov ncej yog milled thiab tom qab ntawd polished nyob rau sab saum toj. Txoj kev tsuas yog siv rau kev kho cua sov ua ntej ntawm cov ncej thiab bushing. Kom tau txawmfaib load rau txhua spline, siv centering ntawm ob sab. Lub bore thiab ncej yog thermally txhim kho. Feem ntau, qhov chaw nruab nrab no yog siv rau kev sib txuas nrog lub zog siab thiab kev thauj khoom hnyav.

Ib co ntsiab lus tseem ceeb

Raws li tau sau tseg saum toj no, kev sib txuas tseem ceeb thiab splined yog siv txhawm rau tiv thaiv ob feem ntawm kev xa cov txheeb ze rau ib leeg. Ua ntej txhim kho qhov chaw ntawm lub ncej, nws raug kuaj xyuas lub zog, uas tso cai rau koj xaiv cov yam ntxwv zoo tshaj plaws, xws li cov khoom siv, qhov ntev, qhov hnyav. Yog hais tias peb tham txog qhov feem pua ntawm cov splines, ces cov ncaj-sided sawv daws yuav nyob txog 80%, thiab tsuas yog 10% tseem nyob rau involute thiab triangular sawv daws yuav. Nyob ntawm kev ua haujlwm ntawm kev sib txuas, cov khoom lag luam raug xaiv, uas tuaj yeem yog lub teeb, nruab nrab lossis hnyav. Nws yog ib qho tseem ceeb uas yuav tau xyuam xim rau lub xub ntiag ntawm lubrication nyob rau hauv kev twb kev txuas, tshwj xeeb tshaj yog yog hais tias nws yog movable. Qhov tsis muaj cov roj ntxhia lossis cov khoom siv yuav ua rau cov coefficient ntawm kev sib txhuam nce ntau zaus. Thiab qhov no yog ib qho kev nce ntxiv ntawm kev sib txuas thiab kev txo qis hauv kev ua haujlwm ntawm tag nrho lub rooj sib txoos. Kev muab cov roj los yog roj yog ua los ntawm cov chaw nres tsheb hauv nruab nrab (yog tias tus naj npawb ntawm cov nodes ntau dua 50 daim) lossis mechanically.

Zaj lus

Lub ntsiab lus tseem ceeb yog kev kho dua tshiab ntawm cov keyed thiab splined sib txuas. Tau kawg, qee zaum nws yooj yim dua los hloov, tab sis thaum qhov no tsis tuaj yeem ua tau, ces siv txuas ntxiv. Yog ibnyob rau hauv cov lus yooj yooj yim, ces los ntawm vuam lawv restore lub qub lub xeev ntawm cov khoom. Feem ntau, arc vuam yog siv, ua raws li kev sib tsoo (nrog siab hnav). Qee lub sij hawm nws tshwm sim tias qhov kev xaiv ntawm kev sib txuas spline tsis tso cai rau kev kho. Qhov no tshwm sim thaum lawv yooj yim detachable thiab tsis npaj rau regrinding. Txhawm rau tiv thaiv cov node ua tsis tiav, nws yog ib qho tsim nyog yuav tsum tsis suav nrog kev sib ntaus sib tua hauv kev sib txuas. Qhov no tuaj yeem ua kom ntseeg tau ntau txoj hauv kev, piv txwv li, los ntawm kev txhim kho gaskets tshwj xeeb. Qhov ntawd, hauv paus ntsiab lus, yog txhua yam uas tuaj yeem hais txog qhov kev sib txuas spline yog dab tsi thiab vim li cas nws thiaj li xav tau.