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Plahvatuskindla elektrimootori korpuse valmistamistehnoloogia

Harri, Liis (2016) Plahvatuskindla elektrimootori korpuse valmistamistehnoloogia. [thesis] [en] Case Manufacturing Technology for Explosion-Proof Electric Motors.

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Abstract

Lõputöö on valminud aktsiaselts Konesko toel, kelle peamine tegevusala on elektrimootorite, elektri komponentide ning sildkraanade otsavankrite valmistamine. Tänu välja töötatud plahvatuskindla mootori korpuse valmistamistehnoloogiale saab selle mootorikorpuse valmistamise tuua allhankest tagasi ettevõttesse AS Konesko. Käesoleva lõputöö käigus sai tehtud vajalikud lõikereziimide, rakiste ning majanduslikud arvutused. Plahvatuskindla mootori korpuse valmistamiseks sai kasutatud Sandvik Coromant-i loodud tarkvara CoroGuide, mille järgi sai valitud vajalikud lõikereziimid. Antud lõputöös sai projekteeritud rakis detaili paremaks kinnitamiseks. Antud rakiste projekteerimise eesmärk, oli tagada mootori korpusel vajalikud täpsused. Rakised koosnevad ümarterasest, D100 terasest, padrunist, otsa plaatidest, alusplaadist ning sise tsangidest. Esimene rakis on projekteeritud otspindade treimiseks. Teine rakis detaili sisetöötluseks. Kolmas/neljas rakis avade ning keermete töötluseks. Detaili paigaldus rakisesse toimub baaspindadelt, kuna joonisel toodud mõõtmed, ristseisud ning viskumised vastavad antud mõõteahelatele. Seega tuli täpsuskontrollis arvutada maksimaalne piirhälve detaili otspinna ja rakise vahel. Arvutatud kinnitusjõu põhjal on jõutud järeldusele, et projekteeritud rakis on sobiv tagamaks detailide paigal püsivuse nende töötlemisel antud rakises. Majanduslikus osas on välja arvutatud kulutused rakise materjalidele, korpuse töötlemisele (seadme tööle), töötajate palgafond ning omahind. Millest järeldusi tehes selgus, et plaan tuua alltöövõtjatelt tööd firmasse tagasi on õigustatud.

Abstract [en]

The thesis have been completed with the support of Konesko joint-stock company whose main business area is manufacturing electrical motors, electrical components and overhead traveling cranes. Due to the explosion-proof motor housing manufacturing technology it is possible to bring motor housing manufacturing back in to AS Konesko from outsourcing. In the course of this thesis work was made necessary incisive regimen, contrivance and economic calculations. For the explosion-proof motor housing manufacturing was used Sandvik Coromant's CoroGuide designed software, whereby was made the necessary calculations for incisive regimen. In this thesis was designed a contrivance for better anchor of the detail. Given design of the contrivance was to ensure the accuracy of the motor housing needed. Therefore the contrivances consist of round steel, D100 cartridge, end plates, base plate and the inner collet. The first contrivance is designed for the end surface turning. The second contrivance is designed for the detail internal processing. The third contrivance is designed for the holes and threads processing. The instalation of the detail in to the contrivance takes place at the base plate because the dimensions shown in the drawing, cross-oppositions and run-out correspond to the measurement circuits. Therefore the accuracy was verified of calculating the maximum limit of tolerance of the end surface and between the contrivance. On the basis of calculated clamp-load, it is concluded that the designed contrivance is suitable to ensure that the detail will stay in place in the contrivance while it is being processed. In the economic part there is calculated the costs for the contrivance materials, processing the housing (the device to work), employee payroll and the net value. The conclusions showed that the plan to bring the work back from subcontractors is justified.

Item Type: thesis
Advisor: Puumets Mihkel
Subjects: Mechanical Engineering > Production Engineering and Technology > Equipment and Jigs
Mechanical Engineering > Production Engineering and Technology
Divisions: Institute of Engineering > Machine Building
Depositing User: Harri Liis
Date Deposited: 09 Jun 2016 11:30
Last Modified: 09 Jun 2016 11:30
URI: http://eprints.tktk.ee/id/eprint/2202

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