n := 735rpm Leian trumli pöörlemissageduse vk lasti tõstekiirus i p := 4 polüspasti kordsus (1, lk 13) Dtrummel trumli löbimõõt vk i p 1 n tr := = 38.197 Dtrummel min n tr := 38.2rpm Leian vajaliku reduktori ülekandearvu, kui tean, et n tr := 38.2rpm ja n m := 735rpm nm i red := = 19.241 n tr Reduktori valin vastavalt kataloogile Electric Corp. Gear Reducers Product Catalogue, reduktori ülekandearv i red := 20.68 Joonis 8.1 Reduktori valik (5,lk 40) 9) Piduri valik, asendi määramine. Pidurdusmoment, varutegur. Elektromagnet. Piduri põhilised mõõtmed. Leian koormuse staatilise momendi ( Q + G) Dtrummel M K := = 323 N m (1, lk 46) 2 ip i red Q = 140 kN tõstetav last G = 2.1 kN konksuploki kaal Dtrummel = 0.4 m trumli läbimõõt = 0
9 kW Konveierilint Valin varuga standartse lindi laiusega B l := 600mm Valin vahekihtide arvuks i L := 2 Lindi paksus t = 9.5 mm Rullide mõõdud Vedava ja veetava rulli läbimõõt D = 0.4 m Tugirullide läbimõõt Dp = 0.108 m Rullide laius L = 0.78 m Allikad 1. Fenner Dunlop Conveyor Handbook, Kättesaadav: ÕIS õppematerjalid (09.12.18) 2. Tõste- transportmasinad, V. L. Morgarsov, Valgus 1967. 3. ABB Low Voltage General Purpose Motors tootekataloog 4. Electric Corp. Gear Reducers Product Catalogue 2016 Kättesaadav: http://catalog.jamiesonequipment.com/Asset/WWW%20Gear%20Reducers%20Catalog%20 2016%20JEC.pdf (02.12.2018) 5. USING VIRTUAL REALITY (VR) TO IMPROVE CONVEYOR BELT SAFETY IN SURFACE MINING Kättesaadav: https://www.researchgate.net/figure/Example-pinch-point-locations-on-a-conveyor-belt_fig2_25 5636172 (01.01.2019)
ir Kasutatud allikad 1.Density of materials, Kättesaadav:https://www.simetric.co.uk/si_materials.htm (02.12.18) 2. Tõste- transportmasinad, V. L. Morgarsov, Valgus 1967. 3. Wire Rope Industries tootekataloog, Kättesaadav ÕIS-ist (08.12.18) 4. ABB General Motors kataloog.pdf. Kättesaadav ÕIS-ist (02.12.18) 5. Arcelor Mittai Passenger Cableways, Kättesaadav: http://ds.arcelormittal.com/repository/fanny/Passengers_Track%20ropes.pdf (15.12.18) 6. Rossi, EP series Planetary gear reducers and gearmotors Kättesaadav: https://my.motovario.com/file.php?s=6bzi (15.12.18)
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