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Karakteristike habanja motičica vučenog kultivatora u abrazivnom pesku

dc.contributor.authorKakade, Subhash
dc.contributor.authorSharma, Ajay Kumar
dc.contributor.authorTiwari, Ghanshyam
dc.date.accessioned2015-03-04T18:39:18Z
dc.date.available2015-03-04T18:39:18Z
dc.identifier.urihttp://arhiva.nara.ac.rs/handle/123456789/109
dc.description.abstractWear of soil engaging components occurs because the materials used are normally softer than the natural abrasives in the soil. Most of sweeps of cultivator are manufactured locally which are hardly as per with the standards which affects operational life of tillage tool. So, there was a need to study wear characteristics of sweeps so as to provide the suitable sweeps. Study was conducted in rotary soil bin in abrasive sand. Sweeps of three different makes were tested at speed 1 m•s-1 and depth100 mm respectively. After running the sweeps for 20 h in the soil bin, sweeps were weighted and loss in weight and dimensional wear loss was noted down. Similar procedure was followed for 100 h time intervals. It was observed that the weight of sweeps decreased linearly with increase in working period for all the tested sweeps. The maximum cumulative wear was observed for sweep S2 (18.25 gm) followed by sweep S1 (15.4 gm) and sweep S3 (13.8 gm). The maximum cumulative tip wear was observed for sweep S2 (1.78 mm) followed by sweep S1 (1.48 mm) and sweep S3 (1.31 mm) and maximum cumulative edge wear was observed for sweep S2 (1.20 mm) followed by sweep S1 (0.96 mm) and sweep S3 (0.84 mm) when operated for 100 h. The sweep S3 was found best in this study which has minimum gravimetric wear, tip wear and wing wear.en
dc.description.abstractRadni organi se troše u didru sa zemljištem jer su materijali od kojih su izrađeni uobičajeno mekši od prirodnih abraziva u zemljištu. Većina kultivatorskih motičica su izrađene u lokalnim radionicama, i retko odgovaraju standardima koji se odnose na radni vek radnog organa za obradu zemljišta. Zato je bilo potrebno ispitati karakteristike habanja motičica dostupnih na tržištu, kako bi se izdvojile one koje odgovaraju standardima. Ispitivanje je izvedeno u kružnom zemljišnom bazenu sa abrazivnim peskom. Motičice tri različita proizvođača ispitivane su pri brzini rada od 1 m•s-1 i na dubini od 100 mm. Posle rada u trajanju od 20 h u zemljanom bazenu, motičice su merene da bi se dobili gubitak mase i smanjenja dimenzija zbog habanja. Sličan postupak je ponovljen i posle 100 časova rada. Utvrđeno je da se masa motičica smanjuje linearno sa povećanjem radnog perioda kod svih ispitivanih modela. Maksimalno kumulativno habanje ustanovljeno je kod motičice S2 (18.25 g), zatim kod motičice S1 (15.4 g) i najmanje kod modela S3 (13.8 g). Maksimalno kumulativno smanjenje dimenzija dobijeno je kod modela S2 (1.78 mm), zatim kod motičice S1 (1.48mm) i najmanje kod modela S3 (1.31 mm), a maksimalno kumulativno habanje ivica bilo je dobijeno kod motičice S2 (1.20 mm), zatim kod motičice S1 (0.96 mm) i najmanje kod modela S3 (0.84 mm), posle 100 časova rada. Zaključeno je da je motičica S3 pokazala najbolje rezultate u ovom ispitivanju, sa najmanjim habanjem po svim merenim kriterijumima.sr
dc.subjectsweepsen
dc.subjectsoil binen
dc.subjectabrasive sanden
dc.subjectwearen
dc.subjectmotičiceen
dc.subjectzemljani bazensr
dc.subjectabrazivni pesaksr
dc.subjecthabanjesr
dc.titleWear Charactritics of Commercially Avalable Tractor Drawn Cultivator Sweeps in Abrasive Sanden
dc.title.alternativeKarakteristike habanja motičica vučenog kultivatora u abrazivnom peskusr


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  • Issue 2014-2.
    www.jageng.agrif.bg.ac.rs/files/casopis/PT_02-2014.pdf

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