Ndi njira ziti zochepetsera zinyalala zozimitsidwa magetsi oyatsira moto ?

Cholinga chachikulu cha induction Kutentha ng’anjo kuzimitsa workpiece tempering ndi kuchepetsa kupsinjika maganizo ndi kupewa kuzimitsa ming’alu; nthawi zina, tempering ndi kuchepetsa kuuma kuti akwaniritse zofunika luso workpiece.

Pali njira zitatu zochepetsera chogwirira ntchito mukatha kuzimitsa ng’anjo yotenthetsera:

(1) Pamene workpiece kudziletsa kudziletsa kuzimitsidwa, kuzirala si kupitiriza mpaka mapeto ndipo amasokonekera pasadakhale, kuti yotsalira kutentha moyandikana ndi pachimake cha wosanjikiza wosanjikiza anasamutsidwa kwa wosanjikiza anaumitsa, kotero kuti anaumitsa. wosanjikiza umatenthedwanso kuti ufike pa kutentha kwina. Pangani wosanjikiza woumitsidwa kupeza kapangidwe kofunikira ndi magwiridwe antchito. Njira imeneyi inkagwiritsidwa ntchito pozimitsa zitsulo ndi zitsulo zachitsulo m’masiku oyambirira.

M’mayiko omwe kale anali Soviet Union kumayambiriro kwa zaka za m’ma 20, zaka 50, zinayamba kugwiritsidwa ntchito ng’anjo yotentha zolimba zolimba, monga crank magazine, giya, mapini angapo ndi zida zina zamagalimoto, njirayi ingagwiritsidwe ntchito mu FIG. 3-21 kwa FIG.

M’njira zina zodziletsa, magawo 4 mpaka 5 amazizidwa ndi kupopera madzi kachiwiri, pamene ambiri kudziletsa, masitepe 4 mpaka 5 amalola workpiece kuzizirira mwachibadwa mumlengalenga.

Ubwino wa kudziletsa kudziletsa ndi kuti amapulumutsa ya zida tempering. Tengani buku la crankshaft quenching monga chitsanzo. Chifukwa cha kukhazikitsidwa kwa njirayi mufakitale yopangira magalimoto, ng’anjo yotentha yokhala ndi mphamvu ya 100kW ndi malo opangira 30m 2 amasungidwa pamzere wopanga. Kuphatikiza apo, imapulumutsa ndalama zamagetsi ndi kukonza. Komabe, njira yodziletsa imakhalanso ndi zofooka, choncho ntchito yake ndi yochepa.

1) Njira yodzitetezera yokha ndiyoyenera kugwiritsira ntchito zida zogwirira ntchito ndi kutentha kokwanira kotsalira pakatikati pa chogwirira ntchito pambuyo pa kutentha, ndipo kutentha kotsalira kutengera ku mfundo zonse za wosanjikiza wouma kuyenera kukhala yunifolomu; mwinamwake, kuuma kwa kuzimitsidwa pamwamba pa workpiece ndi zosagwirizana pambuyo kudziletsa , Ndipo ngakhale madera munthu sali kudziletsa. Mwachitsanzo, pakatenthetsa kamodzi ndikuzimitsa giya la mphete yagalimoto, 48-56HRC imafunika. Kudziletsa kumagwiritsidwa ntchito kupeza zotsatira zabwino. Kutentha kodziletsa kwa gawo lililonse la mphete ya gear ndi yunifolomu. Komabe, pamene magazini ya crankshaft yazimitsidwa, zomwe zimatchedwa zotsatira za m’mphepete zimawonekera pamagazini yaikulu yapakati ndi magazini yaikulu kumbali ya flange, ndiko kuti, kutentha kwapakati pa gawo lapakati la magazini ndipamwamba; ndipo malo osinthira mbali zonse ziwiri ali pafupi ndi crank. Imatenthetsa zitsulo ndikuchotsa kutentha mofulumira, ndipo kutentha kwadzidzidzi kumakhala kochepa. Choncho, kuuma kwa gawo lapakati la gawo lonselo ndi lochepa kwambiri, pamene kuuma kwa magawo osinthika kumbali zonse ziwiri kumakhala kwakukulu. Chigawo ichi ndi malo opanikizika kwambiri ndipo ndi omwe amatha kuthetsa ming’alu.

Zotsatira za m’mphepete zingathe kuwonetsedwa mu Chithunzi 3-22. Kudziletsa kudziletsa pagawo lapakati la chitsanzo ndi chabwino, ndipo zotsatira zake mbali zonse ndi zoipa, kuchititsa kuuma kusiyana pafupifupi 5HRC. Mayesero atsimikizira kuti kudziletsa ndikoyenera kutenthetsa zida zogwirira ntchito zokhala ndi mainchesi akulu komanso kutentha kwakukulu, ndiko kuti, d>m, yokhala ndi kutentha kwambiri. Sikoyenera kutenthetsa njira zopangira kutentha ndi zida zogwirira ntchito zokhala ndi m’mimba mwake pang’ono komanso kutentha kochepa kwambiri.

2) Ubwino wina waukulu wa kudziletsa ndi nthawi yake. Monga tonse tikudziwa, magetsi oyatsira moto kuzimitsa workpieces nthawi zambiri kumafuna kutentha kwanthawi yake kuti ateteze ming’alu isanapse. Popanga kudziletsa, zimatsimikiziridwa kuti chifukwa cha kutentha kwanthawi yake, zimakhala ndi zotsatira zabwino zopewera kusweka kwa kamera ya camshaft ndi zida zina zogwirira ntchito zomwe zimatha kung’ambika musanayambe kupsa. ”

(2) Kutentha kwa ng’anjo yotenthetsera

M’zida zamakono zotenthetsera ng’anjo yotenthetsera, kugwiritsa ntchito kutentha kwa ng’anjo ya induction kukukulira tsiku ndi tsiku. Chifukwa chake ndi chakuti imatha kupangidwa pa intaneti, kufupikitsa nthawi yopanga, ndikupanga zovuta zina zomwe sizingathetsedwe mwa kudziletsa.

Kuwotcha kwa ng’anjo yotenthetsera ndikosavuta, kumatha kupangidwa pa intaneti, ndikuthetsa kuipa kwa kudziletsa, monga m’mphepete, ndipo kumagwiritsidwa ntchito popanga zamakono. Pali njira ziwiri zoyatsira ng’anjo ya induction:

1) pogwiritsa ntchito magetsi oyambira kuzimitsa, ng’anjo yoyambira yoyambira, chipangizocho chimakhala ndi njira yochepetsera mphamvu. magetsi oyatsira moto kukwiya. Ubwino wa njirayi ndikuti njira yozimitsira ndi kutenthetsa imatsirizidwa pakutsitsa ndi kutsitsa kumodzi, koma chifukwa malo ozizimitsa amakhala otanganidwa, zokolola zimachepa.

Njirayi imagwiritsidwa ntchito pazigawo zing’onozing’ono izi monga ma crank a njinga zamoto. Pambuyo pakuwumitsidwa kwa theka-axis, 1/5 mpaka 1/6 yamagetsi apakatikati amagetsi ozimitsa ndi cholumikizira chomwechi chidagwiritsidwa ntchito pakuwotcha mung’anjo yowotchera yowunikira. Choyipa ndichakuti mphamvu yoyambira yozimitsira magetsi imagwiritsidwa ntchito pakutentha kotsika, ndipo ma frequency ake apano ayenera kukhala apamwamba kuposa ma frequency abwinobwino. Choncho, kutentha kwa wosanjikiza wowuma kumadalira kwathunthu kutentha kwa kutentha, ndipo kutentha kwake kumakhala kochepa.

2) Gwiritsani ntchito seti ina yamagetsi oyenera otsika pafupipafupi ndi inductor pakuwotcha, ndipo njirayi imagwiritsidwa ntchito kwambiri pano. Chifukwa kutentha kwa kutentha kwa ng’anjo yoyimitsidwa ndi kutenthedwa kwa ng’anjo yozimitsidwa ndi yotsika kuposa malo a Curie, ndipo ambiri a iwo ndi otsika kuposa 300 ℃, panthawiyi, kuzama kwapakati pa kutentha kochepa nthawi zambiri kumakhala 1/10 ya kuya kwapakati pa 800. ℃ ~ 1/4 . Chifukwa chake, ma frequency omwe amasankhidwa kuti atenthetse chogwiriracho ndi otsika kwambiri kuposa ma frequency apano pakuzimitsa ndi kutentha. Ndi chizolowezi kugwiritsa ntchito 1000 ~ 4000Hz, ndipo ena amagwiritsa ntchito pafupipafupi mphamvu, monga ma silinda ndi ma giya a mphete za flywheel.

Ma inductors otenthetsera nthawi zambiri amagwiritsa ntchito kutembenuka kangapo, kusiyana pakati pa mphete yogwira ntchito ndi chogwirira ntchito kumakulitsidwa, ndipo gawo la gawo lopumira nthawi zambiri limakhala lalikulu kuposa malo ozimitsidwa. Sensa yotentha ya Hub, monga momwe tawonetsera pa Chithunzi 3.23.

Semi-shaft ikatengera njira yowunikira, kutenthetsa kwake kumatenthedwanso ndi ng’anjo yotenthetsera. Panthawiyi, gwero lina lamagetsi locheperako limagwiritsidwa ntchito ndipo makina otembenuza angapo amagwiritsidwa ntchito kutenthetsa ndi kutentha kamodzi.

3) Ubwino wotenthetsera ng’anjo yotenthetsera:

① Kutentha kwakanthawi kochepa, zokolola zambiri, ng’anjo yotenthetsera yotentha yotsika kutentha ndi 4 ~ 2 (H : / s, sing’anga ndi kutentha kwapakati ndi 5 ~ 30Y / s, silinda liner imagwiritsa ntchito mphamvu pafupipafupi, zidutswa zitatu pa nthawi, 3 ℃ Kutentha nthawi ndi 220 ~ 30s.

② Zinthu zokhazikika komanso zamakina zabwino zitha kupezeka.