Assembly exercise: spur and worm gear Design and function of a spur and worm gear; planning, assembly and disassembly Features - part of GUNT DigiSkills learning projects and the GUNT Practice Line for assembly, maintenance and repair - supported by augmented reality - multimedia instructional materials on USB flash drive and online in GUNT Media Center: 3D PDF, DXF files, STEP files, videos Learning objectives/experiments - function and design of a spur and worm gear - planning and presentation of the assembly process, supported by augmented reality - assembly and disassembly, including for the purposes of maintenance and repair - read and understand engineering drawings (PDF files, DXF files, STEP files) - familiarisation with various machine elements: gear wheels, ball bearings - familiarisation with assembly aids and jigs - generation of programs for 3D print and CNC machining - in conjunction with MT 173 -- functional testing of the assembled gear unit - in conjunction with MT 174 -- preventive maintenance Specification [1] kit of a spur and worm gear [2] part of GUNT DigiSkills and of the GUNT Practice Line for assembly, maintenance and repair [3] complete, disassembled gear unit with set of small parts and 8 assembly jigs, housed in a storage system with foam inlay [4] gear unit comprising drive housing, worm pedestal housing, driving and driven shafts, spur gear stage and worm gear stage [5] spur gear stage with helical gear wheels [6] worm gear stage with cylindrical worm and globoid wheel [7] augmented reality: visualisation of machine elements, display of exploded views, functions [8] multimedia instructional materials: PDF, CAD files, STEP files, videos [9] online access to the GUNT Media Center Technical data Gear dimensions without shaft couplings - LxWxH: 282x138x188mm Transmission ratios - spur gear stage: i=2,83 - worm gear stage: i=12,33 - total gear ratio: i=34,94 Spur gear stage - pinion: number of teeth: z=24, real pitch module: m=1mm - gear wheel: z=68, m=1mm Worm gear stage - worm: z=3 - worm gear wheel: z=37, m=2,7mm Max. output torque: 212Nm at 1400min-1 Shaft connections - drive: ØxL: 16x40mm - driven: ØxL: 30x60mm LxWxH: 600x400x930mm (storage system) Weight: approx. 40kg