TL;DR — Pfungwa huru paMigodhi yeConveyor Gearbox:
1. Mabhokisi ebhokisi epasi anopa 40-60% torque yakawanda yekuburitsa kupfuura mabhokisi ebhokisi ehonye ane saizi yakafanana yemota.nekuti kushanda zvakanaka kwepasi rose kuri 94-97% padanho rega rega zvichienzaniswa ne50-85% yemagadzirirwo ehonye padanho rekufambisa zvinhu.
2. Kushanda zvakanaka kwebhokisi remagiya ehonye kunoderera ne3-8 muzana kubva pakutanga kunotonhora kusvika pakupisa kwekushanda kwakasimba— mumabasa ekuchera anoenderera mberi emaawa makumi maviri nemana, kudzikira uku kwekushanda zvakanaka kunowedzera mutengo wesimba wakakwira ne15-25% mukati memakore mashanu ekushanda.
3. Mabhokisi ebhokisi epasi anosvika maawa ekushanda e40,000-60,000 mumakombi emumigodhi; mabhokisi ebhokisi ehonye avhareji yemaawa 15,000-25,000—kusvedera kwegumbo rehonye kunoita kuti pave nekusakara kupfuura kusvedera kwegumbo mumagadzirirwo emapuraneti.
4. Kudzivirira mutoro wekuvhunduka kuri nani ka3-4 mumabhokisi emagiya epasinekuti magiya epuraneti matatu kusvika mana anogovana mutoro panguva imwe chete, rimwe nerimwe richitakura 25-33% chete yetorque yese.
5. Mabhokisi emagiya ehonye achiri kushanda zvakanaka kana paine mashandisirwo anoitwa nguva nenguva, asinganyanyi kumhanya, uye anozvivharira ega, maawa ekushanda egore negore ari pasi pe2,000.— mutengo wavo wekutanga wakaderera ne30-40% uye mabhureki epakutanga zvinoita kuti zvikwanise kushandiswa mukuchera matongo.
Musiyano weKushanda Nesimba reTorque: Nei Mabhokisi eGiya rePasirose Achifambira Mberi Mukuchera Migodhi Kwakasimba
Kana simba rekuisa simba uye saizi yefuremu yemota yakafanana, giya remapuraneti rinopa torque yakawanda yekuburitsa simba kupulley yekufambisa ye conveyor ne40-60% kupfuura giya remapureti remaworm — nekuti kubatana kwechinhu chinotenderera chepuraneti kunoita kuti pave ne94-97% inoshanda zvakanaka padanho rega rega, nepo magiya emaworm anorasikirwa ne15-50% yesimba rekuisa simba nekuda kwekupisa kunotsvedza.Mukuchera, uko conveyor drive inogona kushandisa 55-200 kW nguva dzose kwemaawa 16-24 pazuva, musiyano wekushanda zvakanaka unoreva zvakananga mari yekushandisa: chikamu chimwe nechimwe chekushanda zvakanaka chinorasikirwa nemadhora mazana masere kusvika zviuru zviviri nemazana mashanu ($800-2,500) pagore mumutengo wekuwedzera wemagetsi pa100 kW yemagetsi akaiswa, zvichienderana nemitengo yemagetsi emunharaunda.
Ndakaongorora magiya emagetsi anotsiviwa pamigodhi yemarasha nemhangura mumakondinendi mana, uye hupfumi hwacho hunogara huchitsigira magiya emagetsi epasi rose kuti ashandiswe nguva dzose. Giya remagetsi remagetsi re75 kW rinotyaira conveyor ine upamhi hwe1,200mm pamugodhi wemhangura wekuChile rakadya 94 kW pazviteshi zvemota (79.8% kushanda zvakanaka kwesystem kusanganisira kurasikirwa kwemota) pandakariyera mushure memwedzi gumi nemisere yekushanda. Chiteshi chemagetsi chinotsiva chine chiyero chakafanana chekudzikisa uye torque yekubuda chakadya 82 kW (kushanda zvakanaka kwesystem ye91.5%) —kuchengetedza mari inosvika $4,800 pagore yemagetsi pa$0.08/kWh nekushanda kwemaawa makumi maviri nemana pazuva, zvichibhadhara mutengo we25% webhokisi remagiya repasi pemakore maviri.
Kutsanangura Nhamba dzeTorque — Planetary vs Worm paIdentical Input Power
Musiyano we torque inobuda pakati pema planetary gearbox nema worm gearbox ane simba rakafanana re 55 kW ne 40:1 reduction ratio inenge 11,500 Nm yema planetary uchienzaniswa ne 8,200 Nm yema worm — mukana we 40.2%.Mukana uyu unowedzera kana paine huwandu hwakanyanya hwekuderedza nekuti kushanda zvakanaka kwebhokisi remagiya ehonye kunoderera zvisina kurongeka kana huwandu huchikwira.
| Kuderedzwa kweChiyero | Kubuda Kwepasi (Nm) | Kubuda kwehonye (Nm) | Kubatsira kweTorque | Kushanda Nehonye Zvakanaka |
|---|---|---|---|---|
| 10:1 | 3,330 | 2,800 | +18.9% | 85% |
| 20:1 | 6,650 | 5,050 | +31.7% | 77% |
| 40:1 | 13,300 | 9,450 | +40.7% | 72% |
| 60:1 | 19,950 | 12,450 | +60.2% | 63% |
| 80:1 | 26,600 | 14,350 | +85.4% | 55% |
Maererano neAGMAmitemo yekuyera magiya uyeISO 6336Nzira yekuverenga simba regiya, kushushikana kwekubata mazino eplanetary gear kunogoverwa mumagiya matatu eplanetary gear uchienzaniswa negumbo rimwe chete, zvichideredza mutoro wezino rega rega neanenge 67% pa torque yakaenzana. Maererano neAGMA 2000-C95, chinhu chekuchengetedza maburi ekugadzira mapuranetary giya chinowanzova 1.4-1.8 uchienzaniswa ne1.0-1.3 yemagiya egonye ane torque yakayerwa —Mabhokisi egiya epasi anopa mukana wekuchengetedza wakakwira ne40-80% kubva pakuneta kwemazino egiya.
Muchokwadi, nhamba idzi dzemagetsi dzine mhedzisiro yakananga yemutengo iyo vatengi vazhinji vasingatarise kusvika padanho rekutanga.Pandakadaidzwa kuti ndigadzirise dambudziko rekugadzirisa bhandi reconveyor retrofit pachiteshi chemarasha cheIndonesia muna 2023, timu yeinjiniya yakanga yasarudza gearbox ye55 kW worm ine chiyero che60:1 chaitarisira kubuda kwe12,000 Nm - asi kubuda chaiko kwakayerwa padhiramu shaft kwaingova 7,800 Nm mushure mekugadzikana kwekupisa. Conveyor yakamiswa panguva yekutanga kwemarasha emvura, zvichida 14,800 Nm breakaway torque. Takagadzirisa izvi nekuisa Yining Hydraulicgiya remapuranetiIyo unit inounza 19,950 Nm nesimba rimwe chete remota — iyo 2.56x torque margin yakabvisa zvachose kutadza kwekutanga.
Chikonzero chikuru chekushomeka kwetorque uku inyaya yekuti ma "worm gearbox" anodziya, chiitiko chandakanyora munzvimbo gumi nembiri dzekuchera.Kuyera kwe torque yebhokisi remagiya ehonye pakatalogu kunoyerwa pa 20 degrees C munzvimbo ine oiri itsva - mamiriro ezvinhu aripo kweinenge maminetsi makumi mana nemashanu ekutanga ekushanda. Mushure memaawa maviri kusvika matatu, tembiricha yemafuta pakubata kwehonye/vhiri inosvika 75-85 degrees C, viscosity inoderera ne 75-85%, uye firimu remafuta e elastohydrodynamic rinodonha kubva pahukobvu hwe 1.2 um kusvika pa 0.3-0.4 um. Pahukobvu hwefirimu iyi, ukobvu hwefirimu chaiyo (lambda ratio) hunodzikira pasi pe 0.5, huchipinda mu boundary lubrication apo simbi-ku-metal inosangana pa microscopic asperity peaks, zvichideredza kugona kwe torque inoshanda ne 12-18% kubva pakatalogu. Mabhokisi egiya epasi anochengetedza firimu reEHL pamusoro pe 1.0 um pasinei netembiricha yekushanda nekuti kushushikana kweHertzian pazuva/pasi uye planet/ring interfaces kwakaderera pane imwe nzvimbo yekubata.
Kutarisira tembiricha ndicho chinhu chisingawanzoonekwi nezvinodiwa pakutenga.Ndakaisa magiya emagetsi panzvimbo shanu dzemigodhi ine ma thermocouples akaiswa mukati megiya, ma bearing outer races, uye oil sump. Data iri rinoratidza kuti planetary gearbox iri mu 75 kW conveyor drive inosvika pa thermal equilibrium pa 58-63 degrees C sump tembiricha mushure memaminitsi angangoita 90 ekushanda. Giya remagoya rinoenzana rinosvika 82-88 degrees C sump tembiricha mushure memaminitsi 120 - panguva iyo chiyero che oxidation ye oil yegiya chinopetwa kaviri pa 10 degrees C yega yega pamusoro pe 70 degrees C, zvichikurumidzisa kuora kwe oil ne4x. Mukati menguva yekuchinja oil kwemaawa 5,000, oil ye planetary gearbox inochengetedza 85-90% ye additive package yayo yekutanga; oil ye worm gearbox inochengetedza 40-50% chete, nesimbi yakakwira (Fe) ne copper (Cu) inopfekwa nesimbi pamusoro pe 150 ppm zvichienzaniswa ne 25-35 ppm mu planetary unit. Izvi zvinokanganisa zvakananga mari yekugadzirisa vashandi: maawa angangoita 0.12 paawa imwe neimwe yekushanda kwemapuraneti kana kuti 0.35 paawa imwe neimwe yekonye.
Reality Duty Cycle: Magiya ehonye mumabasa ekuchera anoenderera mberi
Mabhokisi emagiya ehonye anoshanda nguva dzose muma conveyor emigodhi anotarisana nematambudziko maviri anowedzera: kudzikira kwekushanda zvakanaka sezvo tembiricha yekushanda ichikwira, uye kukurumidza kupera kwevhiri rehonye rebronze nekuda kwekutsvedza kwenguva refu.Pamugodhi wegoridhe kuWestern Australia, ndakatevera giya remagetsi re45 kW rine simba re 900mm raifamba nebhandi re conveyor kwemwedzi gumi nemiviri. Ruzivo rwacho rwakaratidza nyaya yakajeka yekudzikira kuri kuramba kuchiita zvinhu.
Kupisa kwemafuta pakubata kwehonye/vhiri kwakadzikama pa78-82 degrees C mushure memaawa maviri ekushanda — 28-32 degrees C pamusoro penzvimbo iri mumugodhi wepasi pevhu. Pakupisa uku, ISO VG 460 gear oil viscosity inoderera kubva pa460 cSt pa40 degrees C kusvika 50-60 cSt pa80 degrees C, zvichideredza ukobvu hwefirimu remafuta e elastohydrodynamic (EHL) neanenge 70% zvichienzaniswa nemamiriro ekugadzira.Kuderera kweukobvu hwefirimu remafuta kunoreva kuwedzera kwekubatana kwesimbi nesimbi, izvo zvinokurumidzisa kupfekwa kwevhiri rebhuronzi — takayera 0.08mm yekupfekwa kwemaawa chiuru ekushanda mushure memaawa mashanu ekutanga, zvichikonzera kusvibiswa kwezvidimbu zvebhuronzi izvo zvakawedzera kukurumidza kupfekwa mudenderedzwa rakaipa.
Kusiyana neizvi, mabhokisi emagetsi epasi pano ari mumugodhi mumwe chete anoshanda maawa makumi maviri nemana pazuva, mazuva manomwe pasvondo, aichengetedza tembiricha yemafuta iri pakati pe55-62 degrees C nekuti kushanda kwawo ne94%+ kunogadzira inenge chikamu chimwe muzvitatu chekupisa kwemarara. Ukobvu hwefirimu remafuta hwakaramba hwakakwana, uye kuyerwa kwekupfekwa kwemaawa zviuru gumi kwakaratidza shanduko iri pasi pe0.02mm yekuchinja kwezino regiya.Giya remagiya repasi rakasvika maawa 38,000 ekushanda risati ragadziriswa; giya remagiya remagiya remakonzo raida kutsiviwa kwemaawa 14,000 pamutengo wemadhora zviuru zvina nemazana maviri ($4,200) pavhiri rebhuronzi pamwe nemazuva matatu ekushanda kwemuchina wekufambisa magiya painenge $15,000 pazuva rekurasikirwa kwekugadzirwa.
Makori eKushanda Nesimba Pakumhanya Kunochinja-chinja: Kana Planetary Yakunda Nezvakawanda
Kushanda zvakanaka kwebhokisi remagiya epasi kunoramba kuri pamusoro pe90% kubva pa20% kusvika ku100% yekumhanya kwakayerwa, kuchisiyana ne2-3 muzana chete - kushanda zvakanaka kwebhokisi remagiya ehonye kunodzikira zvakanyanya pasi pe50% yekumhanya, kuchidonha kubva pa77% pakumhanya kwakayerwa kusvika pa55-62% pakumhanya kwe30% kune imwe honye ine 40:1.Izvi zvinokosha nekuti ma conveyor emugodhi anowanzo mhanya nekumhanya kwakaderera panguva yekugadzirisa, kutanga-tanga, uye kushanda kwechikamu chemutoro.
Pamugodhi wepotash wekuCanada, sisitimu yekufambisa inomhanya nekumhanya kwe100% (mota ye1,500 rpm, 37.5 rpm conveyor pulley) kwemaawa gumi nemasere pazuva, yozodzikira kusvika pakumhanya kwe60% kwemaawa mana panguva yekuchinja mashift uye kuongororwa kwemabhandi, uye kusvika pakumhanya kwe30% kwemaawa maviri panguva yekuchenesa. Avhareji yekushanda kwezuva nezuva kwebhokisi remagiya repasi yaive 93.5%; yebhokisi remagiya rehonye yaive 71.2% —musiyano we22 muzana-point wakashandura kuita $7,100 yekuwedzera mutengo wemagetsi pagore wemota inofambisa ye90 kW.Chikonzero chacho iStribeck curve yebhokisi remagonyeti: pakumhanya kwakaderera, kubatana kwegonye/vhiri kunoshanduka kubva pafirimu rakasanganiswa kuenda kumafuta emuganho, uko coefficient of friction inowedzera kubva pakugadzirwa kwe0.04-0.06 kusvika pa0.10-0.15, zvichiita kuti kurasikirwa kwefriction kupetwe kaviri pakumhanya kwakaderera.
Chinhu Chinokonzera Ruzha Mukuchera Migodhi Pasi Pevhu: Kuenzanisa Kwemanzwi
Mukuchera pasi pevhu, ruzha rwemagiya harisi dambudziko rekunyaradza - idambudziko remitemo.Mitemo yekuchengetedza migodhi muAustralia (AS/NZS 1269), Canada (CAN/CSA Z107.56), uye EU (Directive 2003/10/EC) inoda kuti ruzha rwuvepo kwemaawa masere rwuve pasi pe85 dB(A), nemiganhu yepamusoro ye140 dB(C). Ndakayera mabhokisi ebhokisi epasi pa72-78 dB(A) padaro remita imwe chete pasi pemutoro wakazara; mabhokisi ebhokisi ehonye ane simba rakaenzana akayerwa 82-88 dB(A) - musiyano we10 dB unoonekwa seruzha runopfuura kaviri.
Ruzha rwunobva pameshi inotsvedza yehonye nevhiri, iyo inoita kuti giya rinzwike zvakanyanya pa500-2,000 Hz - ndiyo chaiyo nzvimbo inonyanya kunzwa vanhu.Mumugodhi une madhiraivha gumi ekufambisa, kudzikiswa kweruzha kubva mumabhokisi egiya epasi kunogona kuva mutsauko pakati pekutevedzera mitemo nenzvimbo dzinofanirwa kuchengetedzwa kwekunzwa dzinoda kuongororwa kwegore negore kwevashandi vese.Mari yekutarisa manzwiro evashandi vemugodhi vane vanhu makumi mashanu inosvika $3,500-5,000 pagore - mutengo unodziviswa kana ruzha rwebhokisi remagiya ruchiramba rwuri pasi pe85 dB(A) action level.
Kana Magiya eHorm Achiri Kushanda Nemusoro — Nyaya Yekushandisa Kwazvo
Mabhokisi emagiya ehonye achiri sarudzo yakanaka yezvehupfumi pamabasa matatu ekuchera: ma conveyor anoshanda nguva nenguva asingasviki maawa 2,000 pagore, ma conveyor anoramba achidikanwa kuti mabhureki asashande zvakanaka kuburikidza ne gear yehonye anozvivharira ega, uye kuiswa munzvimbo dzakamanikana uko gadziriro ye input/output ye right-angle inobvisa seti yegasi re bevel rakasiyana.Ndakataura ma "worm gearbox" maviri akadaro mumakore matatu apfuura, uye ese ari maviri ari kushanda sezvaakagadzirirwa.
Chekutanga, basa rinoitwa nguva nenguva: mudziyo wekugadzirisa zvinhu unoendesa zvinhu pamugodhi wemarasha wekuIndonesia unoshanda maawa matatu kusvika mana pazuva, maawa angangoita chiuru nemazana maviri pagore. Pakushandiswa uku, musiyano wemari yemagetsi yemakore mashanu pakati peplanetary neworm ungangoita $1,500 - hauna kukwana kuenderana nemutengo wepamusoro we $4,800 wekutenga planetary gearbox.Yining Hydraulic planetary gearboxzvehupfumi zvinotsigira mafomu ekushanda anopfuura 4,000 pagore.
Chechipiri, kuzvikiya: maconveyor akadonha (anotakura zvinhu zvichidzika) anoda kubhureka kusina njodzi nekuti bhureki rakakundikana rinokonzera kukurumidza kwebhandi risingadzoreki. Mabhokisi ebhokisi ehonye ane zviyero zviri pamusoro pe40:1 anozvikiya ega - honye haigone kudzoserwa kumashure nevhiri - zvichipa nzira yekubhureka isingatsamiri pamagetsi, kumanikidzwa kwehydraulic, kana mashandiro esystem yekudzora. Izvi zvakakodzera chirango che10-15% chekushanda zvakanaka kwekushandisa maconveyor akakundikana zvakanyanya.
Chechitatu, zvipingamupinyi zvenzvimbo: chimiro chebhokisi rebhokisi rehonye chinokwana kurudyi chinokodzera munzvimbo dzine musoro wekutakura zvinhu uko planetary iri mukati inoda seti yegasi rebevel rakasiyana rinowedzera $2,000-$4,000 uye kureba kweaxial kwe200-400mm. Kuti uwane mashandisirwo anozvivharira uye ane nzvimbo shoma, shanyira.Yining Hydraulic gearbox uye mhinduro dzemotazvekugadzirisa zvinoenderana neapplication.
Mibvunzo Inowanzo bvunzwa
Mubvunzo 1: Ndeipi torque inobuda mubhokisi remagiya repasi rose kana ichienzaniswa nehonye?
Nekupinza kwakafanana kwe55 kW uye chiyero che40:1, kuburitsa kwepasi kunenge 13,300 Nm zvichienzaniswa ne9,450 Nm yehonye - mukana we40%.Mukaha uyu unowedzera kana paine zviyero zvepamusoro nekuti kushanda zvakanaka kwehonye kunoderera zvisina kurongeka kana chiyero chichiwedzera.
Mubvunzo wechipiri: Kushanda zvakanaka kwakasiyana sei mumabasa ekuchera anoenderera mberi?
Planetary inoramba ichishanda zvakanaka ne94-97% padanho rega rega pasinei nekumhanya kana tembiricha. Kushanda zvakanaka kwehonye kunobva pa50-85% uye kunoderedza 3-8 muzana kubva pakutanga kwekutonhora kusvika pakupisa kwekushanda kwe78-82 degrees C.
Mubvunzo 3: Ndeipi musiyano wehupenyu hwebasa?
Pasirose: maawa 40,000-60,000 nekutsiviwa kwemabheyaringi kwemaawa 20,000. Honye: maawa 15,000-25,000.Kusveterana kwemagiya ehonye kunoita kuti pave nekusakara kwakawanda kupfuura kusveterana kwemagadzirirwo emapuraneti. Mari yekushandisa paawa imwe neimwe i$0.15-0.30 planetary zvichienzaniswa ne$0.50-0.90 planetary.
Mubvunzo wechina: Mabhokisi ebhokisi ehonye anogona kubata zvinhu zvinokatyamadza here mukuchera migodhi?
Mabhokisi ebhokisi remakonye anogona kubata kuvhunduka kuri pakati nepakati asi vhiri rebhuronzi ndiro risina simba — kuvhunduka kunodzokororwa kuri pamusoro pe 150% rated torque kunokurumidza kupera. Planetary inopa kuvhunduka mumagiya matatu kusvika mana epuraneti panguva imwe chete.
Mubvunzo 5: Ndezvipi zvinodiwa zvekugadzirisa zvakasiyana?
Planetary: oiri inoshanduka maawa ega ega 2,000-4,000, kutsiva chisimbiso maawa ega ega 10,000-15,000. Honye: oiri inoshanduka maawa ega ega 1,000-2,000 nekuti kukweshana kunotsvedza kunokonzera kusvibiswa kwakanyanya kubva muzvinhu zvakasakara zvebhuronzi.
Mhedziso: Sarudzo yeGiya reMigodhi yeConveyor
Kune ma conveyor emigodhi anoshanda maawa anopfuura 4,000 pagore — inova ndiyo yakawanda yema conveyor ekugadzira — planetary gearbox ndiyo sarudzo yepamusoro-soro mune zvemari. Mutengo wekutenga wakakwira ne25-35% unodzoserwa mukati memwedzi 18-30 kuburikidza nekuchengetedza magetsi chete, uye hupenyu hwebasa hurefu hwe2-3 hunoderedza mari yekushanda kwe conveyor inopfuura mutengo wekutenga ma gearbox. Kuderedzwa kweruzha kwe10 dB(A) kunowanzobvisa kudiwa kwenzvimbo dzekudzivirira kunzwa dzinosungirwa, zvichichengetedza $3,500-5,000 pagore mumari yekutarisa kunzwa.
Mabhokisi emagetsi ehonye achiri kushanda kana achishanda nguva nenguva, achizvivhara ega, uye asingakwanise kushandiswa munzvimbo dzakamanikana pasi pemaawa ekushanda e2,000 pagore.Ndakatsanangura matekinoroji ese ari maviri mumashandisirwo akakodzera, uye ese ari maviri anoshanda zvakanaka kana achienzaniswa nedanho rakakodzera rebasa.
Wagadzirira kuongorora sarudzo dzemagiya epasi pevhu (planetary gearbox) dzekushandisa kwako mukugadzira midziyo yemugodhi? Bata Yining Hydraulickuti pave nechikumbiro chehunyanzvi chinosanganisira kuongorora torque, kuverenga mashandiro, uye kuenzanisa TCO kwemakore mashanu mukati memazuva mashanu ebhizinesi.
Mareferensi Ekunze uye Maitiro
- ISO 6336 - Kuverengerwa kwesimba remutoro wegiya respur nere helical— Muyero wepasi rose wekuverenga simba remazino egiya unoshandiswa mukugadzira magiya epasi nehonye.
- AGMA 6023 — Bhuku reMagadzirirwo eEpicyclic Gear Drives Yakavharwa— Chinonyanya kukosha chekuongorora kugona kwe torque yebhokisi remagiya repasi mukushandiswa kwemigodhi kuNorth America.
- ISO 12944 - Dziviriro yengura yezvivakwa zvesimbi— Inoshanda pakudzivirira magiya emagetsi ari mumabhokisi emagetsi ari pasi pevhu munzvimbo dzekuchera migodhi dzine hunyoro hwakawanda uye mhepo inoparadza.
- ScienceDirect — Planetary Gear Systems: Dhizaini uye Kugadzirisa— Ruzivo rwakakwana rwezvedzidzo pamusoro pesimba remagiya epasi uye kugoverwa kwemitoro.
- ResearchGate — Kuongorora Kushanda Kwemabhokisi Emagiya Ehonye— Chidzidzo chakaongororwa nevezera ravo chinoyera kushata kwekushanda zvakanaka kwebhokisi remagiya ehonye pasi pemabasa anoenderera mberi.
- Bosch Rexroth — Mhando dzezvigadzirwa zvemagiya eindasitiri— Zvinotsanangurwa zvema "planetary" ne "worm gearbox ratings" kubva kumugadziri mukuru we "hydraulic component".
- Komatsu — Tsanangudzo yeMidziyo yeMigodhi— Zvinodiwa zvekufambisa zvinhu zvemagetsi mumabasa makuru ekuchera migodhi.
- Chikonye — Midziyo yekuchera pasi pevhu— Chirevo cheindasitiri che torque inoenderana ne conveyor drive mukuchera matombo akaomarara.
Nguva yekutumira: Chivabvu-18-2026