Zizindikiro 5 Zosonyeza Kuti Chingwe Chanu cha Anchor Winch Chakufunika Kusinthidwa Mwamsanga (Osati Kungokonza)

TL;DR

• Chizindikiro 1:Kuipitsidwa kwa mafuta a hydraulic kumapitirira malamulo a ukhondo a NAS 1638 / ISO 4406, ndipo kukonza bwino sikungakonze kuipitsidwa kwa thupi lonse.
• Chizindikiro 2:Kusuntha kwa injini kwatsika ndi 5% poyerekeza ndi zomwe zafotokozedwa.
• Chizindikiro 3:Kuwonongeka kwa dongosolo la mabuleki kumapangitsa kuti winch isagwire ntchito bwino poyesa mphamvu ya mabuleki.
• Chizindikiro 4:Kusintha kwa ng'oma kumapangitsa kuti chingwe chikhale chovuta komanso kuti chizungulire bwino.
• Chizindikiro 5:Kuchedwa kwa yankho la valavu yowongolera kumapitirira ma millisecond 200 mu ntchito zofunika kwambiri.
• Lamulo la chisankho:Ngati ndalama zokonzera zikuposa 40% ya ndalama zosinthira, nthawi zambiri kusintha ndiko chisankho chotetezeka cha nthawi yayitali.

1. Msampha wa "Kukonza Kokha"

Ndikuuzeni za zokambirana zomwe ndinakhala nazo chaka chatha ndi kapitawo wa sitima ku Rotterdam. Gulu lake la sitimayo linali kukonza zomwezo.nangula winch hydraulicmakinawa kwa miyezi khumi ndi isanu ndi itatu. Mafuta amasinthidwa milungu itatu iliyonse. Pampu yatsopano imatseka zida kotala lililonse. Malo oimikapo magalimoto awiri mwadzidzidzi kuti injini ikonzedwenso. Ndalama zonse zokonzera zidali zitapitirira kale mtengo womwe makinawa atsopano akanawononga, ndipo anali kufunsabe ngati "tingokonza kamodzi kokha."

Ndinamuuza modekha kuti ayi. Sikuti chifukwa chakuti sitinkafuna bizinesiyo, koma chifukwa kupitirizabe kuyenda m'njira imeneyo kunali kosayenera mwaukadaulo. Mota yake ya hydraulic inali itatsika ndi 15% kuposa zomwe zidafotokozedwa, monga momwe Chizindikiro 2 chafotokozera pansipa. Dongosolo lake la mabuleki linkawonetsa kuwonongeka kokhudzana ndi ukalamba. Ma valve ake owongolera anali kuwonetsa kuchedwa kwa mayankho komwe kungakhale koopsa pazochitika zadzidzidzi.

Ichi ndi chomwe ndimachitcha "Just One More Repair" Trap: mfundo yokopa yomwe imati, "Tayika kale ndalama zambiri, kotero titha kupitilizabe." Ndi ndalama zomwe zimafanana ndi kutaya ndalama zabwino pambuyo pa zoyipa. Malinga ndi zomwe ndakumana nazo, sizimangokhudza ndalama zokha. Zimakhala za chiyembekezo. Ndikukhulupirira kuti kukonza kotsatira kudzakhala komaliza. Ndikukhulupirira kuti dongosololi "lidzabwerera." Koma chiyembekezo si njira yogwiritsira ntchito madzi.

Msampha umagwira ntchito chifukwa kukonza kulikonse kumawoneka koyenera kokha: madola mazana angapo pa zisindikizo, chikwi pakusintha mafuta, chikwi cha ntchito yokonza injini. Koma pa miyezi khumi ndi isanu ndi itatu, mutha kugwiritsa ntchito 200% ya ndalama zosinthira ndikugwiritsabe ntchito makina omwe ali pachiwopsezo chachikulu.

Izi ndi zomwe ndaphunzira poona zinthu zambirimbiri izi zikuchitika: chisankho chosintha sichikutanthauza kusiya kugwiritsa ntchito zipangizo, koma kuzindikira nthawi yomwe mtengo wonse wa umwini wadutsa malire omwe amapangitsa kusintha kukhala chisankho chanzeru.

2. Chizindikiro 1: Kuipitsidwa kwa Mafuta a Hydraulic Kupitirira Kutumikira Kwachizolowezi

Kuipitsidwa kwa mafuta a hydraulic ndi njira yofala kwambiri yomwe ndimaiona mu makina a anchor winch, ndipo ndi imodzi mwa njira zomwe anthu ambiri samazimvetsa bwino. Dongosolo lililonse la hydraulic limaipitsidwa pakapita nthawi. Ndi sayansi ya fizikisi. Koma pali kusiyana kwakukulu pakati pa kuipitsidwa komwe kumayankha kukonzedwa ndi kuipitsidwa komwe kwakhala kokhazikika.

Muyeso wofunikira nthawi zambiri umayesedwa motsatira miyezo monga NAS 1638 ndi ISO 4406. Zonsezi zimathandiza kugawa chiwerengero ndi kukula kwa tinthu tating'onoting'ono mu madzi a hydraulic. Makina ambiri a hydraulic adapangidwa kuti azigwira ntchito mozungulira NAS 1638 Class 8 kapena kupitirira apo, kutengera zomwe wopanga akufuna komanso malo ogwirira ntchito.

Ngati mafuta akuwonetsa kusayera bwino pambuyo posintha mafuta onse ndikusintha fyuluta, simukuyang'ana kuwonongeka kwabwinobwino. Mwina mukuyang'ana makina omwe akuipitsa mkati. Gwero lake likhoza kukhala zinthu zosweka zomwe zimataya zinthu, malo owonongeka, kapena njira yowononga yomwe imatulutsa zinthu zodetsa mwachangu kuposa momwe kusefera kungachotsere.

Mayeso Othandiza Okhudza Kuipitsidwa

1. Sinthani mafuta a hydraulic.
2. Sinthani zosefera zonse.
3. Yendetsani makinawa kwa maola pafupifupi 100 ogwira ntchito.
4. Tengani chitsanzo chatsopano cha mafuta ndikuyerekeza zotsatira za ukhondo ndi khodi yofunikira.

Ngati kuipitsidwa kwabwerera pamlingo wovuta, simukukumana ndi vuto la kuisamalira nthawi zonse. Mukukumana ndi dongosolo lomwe limayambitsa kuipitsidwa mkati. Palibe kuisamalira kwabwino komwe kungakonze chifukwa chake.

Ndaonapo milandu pomwe kuchuluka kwa kuipitsidwa kunali kwakukulu kwambiri kotero kuti mafuta atsopano anakhala amdima mkati mwa maola 20 ogwirira ntchito. Pazochitika zimenezo, kupitiriza kugwira ntchito sikunali kokwanira kokha. Kunali kuwononga dongosololi. Nthawi iliyonse inkazungulira tinthu tachitsulo tochuluka kudzera mu hydraulic circuit ndipo zinkapangitsa kuti zinthu zoyenda ziwonongeke mofulumira.

3. Chizindikiro 2: Kusuntha kwa Magalimoto

Ma hydraulic motors ali ndi displacement yapadera: voliyumu ya madzi omwe amasuntha pa revolution. Izi zimayesedwa mu ma milliliters pa revolution (mL/rev) kapena ma cubic inchi pa revolution (in³/rev). Mukagula IYM Series anchor winch, motayo imapangidwa kuti ipereke displacement yapadera mkati mwa ma tolerances odziwika.

Kusuntha kwa injini kumatanthauza kuti kusuntha kwenikweni kwa injini kumachoka pang'onopang'ono kuchokera pa zomwe zafotokozedwa. Izi zimachitika pamene zigawo zamkati zikutha. Zisindikizo zimawonongeka. Ma pisitoni ndi makoma a silinda zimatha. Ma valve amasiya kutseka bwino. Pakapita nthawi, injiniyo singathe kuyenda madzi ambiri pa kuzungulira kulikonse monga momwe idapangidwira kuti iyende.

Kusuntha kwa 2–3% kungagwere mkati mwa magawo oyenera a kuwonongeka, kutengera makina ndi mbiri ya ntchito. Koma kusunthako kukapitirira 5% kuchokera pa zomwe zidapangidwa poyamba, makinawo amakhala atadutsa malire aakulu. Mota iyenera kugwira ntchito molimbika kuti ipereke mphamvu zomwezo. Izi zimapangitsa kutentha kwambiri, zomwe zimafulumizitsa kuwonongeka, zomwe zimayambitsa kusuntha kwambiri. Imakhala njira yodziwonongera yokha.

Momwe Mungayezerere Kusuntha kwa Magalimoto

Muyeso uwu nthawi zambiri umafuna choyezera kuyenda kwa madzi chomwe chimayikidwa mu hydraulic circuit. Gulu lothandizira limayesa kuchuluka kwa kuyenda kwa madzi pa kuthamanga komwe kwafotokozedwa ndi RPM, kenako limayerekeza zotsatira zake ndi zomwe injini ikufuna. Makampani ambiri oyenerera ntchito za hydraulic amatha kuchita muyeso uwu m'munda.

Kuchokera pa zomwe ndakumana nazo, kusuntha kwa injini kopitilira 5% nthawi zambiri kumagwirizana ndi mitundu ina ya kuwonongeka. Njira zomwezo zowonongera zomwe zimayambitsa kusuntha kwa injini zimakhudzanso zomangira zamkati, mabearing, ndi ma housings. Ngakhale mutasintha injini yokha, makina ena onse akhoza kuwonetsa kale mavuto ofanana ndi a ukalamba. Ichi ndichifukwa chake kusuntha kwakukulu kwa injini nthawi zambiri kumasonyeza kuti kusintha kwa makina onse kumakhala kothandiza kuposa kukonza kwa gawo.

4. Chizindikiro 3: Kuwonongeka kwa Mabuleki mu Zochitika Zadzidzidzi

Dongosolo la mabuleki pa winch ya nangula si zida zosankhidwa. Ndi gawo lofunika kwambiri la chitetezo. Mu njira yolumikizira mwadzidzidzi, monga kulekanitsa mzere, kusintha kwadzidzidzi kwa nyengo, kapena kusintha komwe kumafuna kugwiridwa nthawi yomweyo, mabuleki ndi omwe amaletsa nangula kutuluka mu ng'oma ndikulowa m'madzi. Chofunika kwambiri, chimathandiza kugwirizira chombocho pamalo ake pamene zinthu zikuipiraipira.

Kuwonongeka kwa mabuleki ndi koopsa kwambiri chifukwa nthawi zambiri kumachitika mwakachetechete. Mabuleki amatha kugwira ntchito bwino akamanyamula katundu wamba. Akhoza kupambana mayeso oyambira padoko. Koma akagwetsedwa mwadzidzidzi kapena kugwidwa nthawi yayitali nyengo ikavuta, akhoza kulephera.

Mabungwe ogawa magulu a DNV, CCS, ndi BV onse ali ndi zofunikira zinazake kuti akhazikitse gulu la akatswiri.makina otsekera mabuleki a winchZofunikira izi nthawi zambiri zimatchula mphamvu yocheperako yogwirira ndi mikhalidwe yoyesera. Ngati makina a mabuleki sangathe kukwaniritsa mphamvu yogwirira yofunikira, sayenera kuonedwa ngati vuto laling'ono lokonza.

Nayi zomwe ndikuuza akapitawo ndi oyang'anira zombo: yesani mabuleki anu m'mikhalidwe yeniyeni, osati m'malo ongoyambira. Izi zikutanthauza kuyesa katundu woyenera wogwirira ntchito, kuyesa mphamvu ya njinga yothamanga ngati kuli kofunikira, ndi kuyesa mphamvu yogwirira ntchito motsutsana ndi katundu womwe sitima yanu ikuwona ikugwira ntchito.

Ndakhala ndikuchita nawo kafukufuku pambuyo pa ngozi pomwe kulephera kwa mabuleki kunali chifukwa chothandizira. Nthawi zonse, mabuleki "adapambana" mayeso am'mbuyomu, koma mayeso amenewo sanali oyimira momwe zinthu zilili. Musalole kuti chitetezo chanu chizidalira mayeso omwe sakuwonetsa momwe zida zimagwiritsidwira ntchito.

Ngati dongosolo lanu la mabuleki lalephera kugwira ntchito poyesa mphamvu, kapena ngati kuwonongeka kwa galimoto kukupangitsa kuti liwonongeke, chimenecho ndi Chizindikiro 3. Mabuleki akhoza kusinthidwa ngati gawo lina, koma mabuleki owonongeka nthawi zambiri amakhudzana ndi kuwonongeka kwakukulu kwa makina. Pamenepo, fufuzani dongosolo lonselo mokwanira.

5. Chizindikiro 4: Kusintha kwa Kulinganiza Ng'oma Kumayambitsa Chingwe Chokhala ndi Chiwopsezo ndi Chitetezo

Kulinganiza ng'oma nthawi zambiri kumanyalanyazidwa mpaka kutakhala vuto looneka. Kulinganiza bwino kumatanthauza kuti chingwe chimapinda mofanana pa ng'oma, ndipo chivundikiro chilichonse chimakhala bwino pafupi ndi cham'mbuyomu. Kulinganiza kukasuntha chifukwa cha kuwonongeka kwa mabenchi, kutopa kwa kapangidwe kake, kapena mavuto a maziko, chingwecho sichimapindanso bwino.

Chizindikiro chooneka ndi kutsekeka kwa chingwe: chingwe chimakoka pa flange, kukulunga kwakale, kapena manja otsogolera pamene chikugwedezeka. Izi ndi zoposa vuto la magwiridwe antchito. Ndi vuto la chitetezo. Chingwe chotsekeka chomwe chili pansi pa katundu chingasweke mwadzidzidzi, ndipo chingwe choswekacho chikakhazikika chingakhale choopsa kwambiri.

Kuyang'ana Kosavuta Kowoneka

Yang'anani chingwecho pamene chikukankhira pa ng'oma. Yang'anirani kukulunga konse katatu mpaka kasanu ndipo yang'anani zotsatirazi:

• Kodi chingwecho chili bwino mumzere?
• Kodi imasunthira ku flange imodzi?
• Kodi imadutsa pamwamba pa zomwe zidakulungidwa kale ndikupanga mbiri yoyenda pang'onopang'ono?
• Kodi imalankhula kapena imadumpha kuchokera pamalo ena kupita kwina?

Ngati muwona vuto lililonse mwa izi, muyenera kusintha momwe mabearings amagwirira ntchito. Poyamba, izi zitha kukonzedwa ndi kusintha mabearings kapena kusintha mabearings. Koma funso lofunika kwambiri ndilakuti ngati mukuchiza chizindikiro kapena kuthetsa chomwe chimayambitsa vutoli.

Zomwe Zimayambitsa Kusintha kwa Kugwirizana kwa Ng'oma

• Kuvala kwa bere:Mabearing omwe amathandizira kuti shaft ya ng'oma iwonongeke pakapita nthawi, zomwe zimathandiza kuti masewero ayambe.
• Nkhani za maziko:Malo okwerera padenga amatha kusokonekera, kupotoka, kapena kutopa pambuyo pa zaka zambiri zodzaza ndi zinthu.
• Kutopa kwa kapangidwe ka thupi:Kumanga ng'oma kumatha kukhala ndi ming'alu kapena kusintha kwa kutopa.

Ngati kusintha kwa ma bearing kumachitika chifukwa cha kuwonongeka kwa ma bearing komwe kungakonzedwe ndi kusinthidwa, kukonza kungakhale koyenera. Koma ngati maziko awonongeka kapena gulu la ng'oma lili ndi kutopa kwa kapangidwe kake, vutoli limakhala lofunika kwambiri. Pazochitika zimenezo, mavuto a ma bearing nthawi zambiri amakhudzana ndi zizindikiro zina za kuwonongeka kwa dongosolo.

6. Chizindikiro 5: Kuchedwa kwa Kuyankha kwa Valavu Yowongolera Pazochitika Zovuta

Ma valve owongolera ndi dongosolo la mitsempha la winch ya hydraulic nangula. Amatsogolera madzi a hydraulic ku zigawo zoyenera panthawi yoyenera. Wogwiritsa ntchito akayambitsa ntchito monga kukweza, kutsitsa, kapena kulipira, valavuyo imayankha, madzi amatuluka, ndipo dongosololo limagwira ntchito.

Mu ntchito zachizolowezi, kuchedwa kwa mayankho kwa ma millisecond 100–150 kungakhale mkati mwa zomwe zafotokozedwa, kutengera kapangidwe ka makina. Wogwiritsa ntchitoyo sangazindikire bwino. Vuto ndilakuti kuchedwa kwa mayankho kumawonjezeka pakapita nthawi. Ma valve internal amawonongeka. Ma spools amakhala ndi kusewera pang'ono. Madzi a hydraulic sagwira ntchito bwino potumiza mphamvu pamene akutentha ndikuwonongeka. Zotsatira zake ndi dongosolo lowongolera lomwe limakhala lochedwa kuyankha.

Chiwopsezo chenicheni chimakhala pafupifupi ma millisecond 200. Pa nthawiyo, zomwe zinkaoneka ngati kuchedwa kwabwinobwino zimatha kuchedwa moonekera. Chofunika kwambiri, pakagwa ngozi pomwe pakufunika kuyankha mwachangu, kuyankha mochedwa kungalole kuti nangula igwe patali kuposa momwe idafunira kapena buleki igwire mochedwa kwambiri.

ISO 4565 nthawi zambiri imagwiritsidwa ntchito pa magalasi a nangula ndi zofunikira zina zokhudzana ndi zida. Ngakhale kuti nthawi yeniyeni yoyankhira valavu nthawi zambiri imafotokozedwa ndi wopanga makina, makina owongolera amafunikabe kupereka yankho lokwanira pa ntchito zomwe akufuna. Kukwanira kumatanthauza kuti iyenera kukwaniritsa zofunikira zogwirira ntchito za sitimayo ikagwira ntchito yeniyeni.

Momwe Mungayezerere Kuchepa kwa Ma Valavu

Ikani chosinthira mphamvu pansi pa valavu yowongolera. Yesani nthawi pakati pa kulowetsa kwa woyendetsa ndi chizindikiro cha mphamvu chomwe chikufika pa actuator. Yerekezerani zotsatira ndi zomwe zafotokozedwa mu dongosolo. Ngati yankho likupitirira pafupifupi mamilimita 200 nthawi zonse, kuchedwa kuyenera kuonedwa ngati chizindikiro chachikulu cha chenjezo.

Malinga ndi zomwe ndakumana nazo, kuchedwa kwa yankho la ma valve owongolera nthawi zambiri kumakhalapo kokha. Valavu yomwe ikuwonetsa kuchedwa kwakukulu kwa yankho nthawi zambiri imagwirizana ndi kuipitsidwa komwe kumakhudza kugwira ntchito kwa spool, kuwonongeka kwa injini kuchepetsa kuyankha kwa dongosolo, kapena kuwonongeka kokhudzana ndi ukalamba mu hydraulic circuit yonse. Nthawi zambiri ndi chizindikiro cha mulingo wa dongosolo, osati kungokonza mulingo wa gawo.

7. Kusintha ndi Kukonza Matrix: Kusanthula Ndalama Zonse

Pambuyo pa zaka makumi awiri, nayi njira yomwe ndimagwiritsa ntchito kasitomala akafunsa ngati akonza kapena kusintha. Ndikugawana osati chifukwa nthawi zonse zimapangitsa kuti pakhale kusintha. Nthawi zina masamu amathandizanso kukonza. Ndikugawana chifukwa zisankho zambiri zokonzanso zimapangidwa popanda chidziwitso chokwanira.

Nayi lamulo losavuta losankha: ngati mtengo wokonzanso ukupitirira 40% ya mtengo wosinthira, nthawi zambiri kusintha ndiye chisankho chabwino. Chiŵerengero cha 40% ichi chimawerengera kusiyana kwa moyo komwe kumayembekezeredwa, ndalama zogwirira ntchito pakapita nthawi, chiopsezo chokonzanso mwadzidzidzi, ndi mtengo wotsala.

Ndaona masamu akugwira ntchito yokonza, makamaka pamene dongosolo lomwe lilipo lili laling'ono, vutoli likuonekeratu kuti ndi gawo limodzi, ndipo ndalama zokonzera zili pansi pa 30% ya zomwe zasinthidwa. Pazochitika zimenezo, kukonza kolunjika kumakhala komveka.

Koma ngati muwona zizindikiro zingapo kuchokera m'nkhaniyi, makamaka Chizindikiro 2 kapena kupitirira apo, yankho nthawi zambiri limakhala lolowa m'malo. Zizindikiro izi sizimachitika zokha. Zimasonkhana pamodzi. Mukawona magulu, mukuwona dongosolo lomwe likuyandikira mapeto a moyo m'magawo angapo.

Zokhudza Yining Hydraulic

Yining Hydraulic (意宁液压股份有限公司) yakhala ikupanga ma winchi a hydraulic anchor winch kuyambira mu 2003. Ma winchi ake a IYM Series ndi IYJ Series akhoza kufotokozedwa kuti azigwiritsidwa ntchito panyanja ndi m'mphepete mwa nyanja, kuphatikizapo kuwunikanso magulu komwe kuli koyenera. Ogula ayenera kutsimikizira zofunikira za DNV, CCS, BV, ISO, kapena gulu la zombo panthawi ya RFQ ndi njira yovomerezeka.

Ngati mukuyang'ana ngati mukonze kapena kusintha makina anu a hydraulic winch winch, Yining Hydraulic ingapereke kuwunika kwaukadaulo. Nthawi zina izi zikutanthauza kupereka lingaliro la makina atsopano. Nthawi zina zikutanthauza kutsimikizira kuti kukonza komwe mukufuna ndikomveka. Mulimonsemo, cholinga ndikuthandizira chisankho chomwe chili choyenera chombo chanu, gulu lanu, ndi momwe chikugwirira ntchito.

Lumikizanani ndi Yining Hydraulic kuti muwunikenso winch ya nangula

Mafunso Ofunsidwa Kawirikawiri

Kodi ndiyenera kusintha mafuta a hydraulic kangati mu makina anga a nangula winch?

Pa ntchito zambiri zapamadzi, mafuta a hydraulic amasinthidwa maola 2,000 aliwonse ogwirira ntchito kapena pachaka, chilichonse chomwe chimabwera poyamba. Komabe, nthawi yoyenera imadalira buku lowongolera la wopanga, zotsatira za kusanthula mafuta, malo ogwirira ntchito, ndi nthawi yogwirira ntchito m'sitima. Ngati kuipitsidwa kumabwereranso mwachangu pambuyo pa kusintha kwa mafuta, chimenecho ndi chizindikiro cha kuipitsidwa kwa thupi m'malo mwa nthawi yogwirira ntchito yanthawi zonse.

Kodi winch ya nangula yamadzi ya hydraulic ikuyembekezeka kugwira ntchito nthawi yayitali bwanji?

Ndi kukonza bwino, winch yopangidwa bwino imatha kupereka ntchito yodalirika kwa zaka 8-15. Machitidwe omwe ali ndi zizindikiro zambiri zowonongeka asanafike zaka zisanu ndi zitatu akhoza kukhala ndi mavuto a kapangidwe, kagwiritsidwe ntchito, kapena kukonza omwe ayenera kuunikidwanso ndalama zambiri zokonzera zisanagwiritsidwe ntchito.

Kodi ndingagwiritse ntchito winch yanga ya nangula yokhala ndi mabuleki owonongeka pakanthawi kochepa?

Ayi. Buleki ndi gawo lofunika kwambiri pa chitetezo. Kugwiritsa ntchito makina a mabuleki omwe ali ndi vuto, makamaka omwe amalephera kuchita mayeso a mphamvu, sikotetezeka ngakhale kuti ntchitoyo ingakhale ya kanthawi kochepa bwanji. Mavuto a mabuleki ayenera kuthetsedwa musanagwiritse ntchito.

Kodi kusiyana kwa mtengo pakati pa kukonza ndi kusintha ndi kotani?

Ndalama zokonzera zimasiyana kwambiri kutengera vutolo. Ndalama zosinthira makina osinthira a nangula wa m'madzi zimatha kusiyana kwambiri kutengera mphamvu yokoka, mphamvu ya ng'oma, kapangidwe ka mabuleki, kasinthidwe ka magetsi a hydraulic, makina owongolera, kuchuluka kwa satifiketi, ndi zofunikira pakuyika chombo. Gwiritsani ntchito lamulo la 40% ngati poyambira: ngati kukonza kupitirira 40% ya ndalama zosinthira, kusintha kumafunika kuganizira mozama.

Kodi mumapereka chithandizo chowunikira pamalopo?

Yining Hydraulic ikhoza kuthandizira kuwunika kwaukadaulo kutengera zofunikira pa sitimayo, zithunzi, zojambula, deta yogwirira ntchito, ndi mbiri yautumiki. Kuti muwonetsetse kupezeka kwa malo oyendera, ogula ayenera kulumikizana ndi kampaniyo mwachindunji ndi malo a sitimayo, mtundu wa winch, zizindikiro zomwe zilipo, ndi muyezo wofunikira wogawa.