Machine Design
机械设计是机械工程专业的核心专业课，培养学生综合运用力学、材料与制造知识进行通用机械零部件设计与整机设计的能力。内容包括连接件（螺栓、键、销）、传动件（齿轮、蜗杆、链、带）、轴系零件（轴、轴承、联轴器）及弹簧等的设计计算方法，涉及失效形式、设计准则、材料选择和结构设计。课程强调工程实践与创新思维。
Machine Design is a core course cultivating students' ability to design general mechanical components and systems using mechanics, materials, and manufacturing knowledge. Topics include fasteners (bolts, keys, pins), drives (gears, worms, chains, belts), shafting components (shafts, bearings, couplings), and springs. The course covers failure modes, design criteria, material selection, and structural design, emphasizing engineering practice and innovation.
学生需根据带式输送机的工作要求，完成传动方案设计、电动机选型、传动比分配、V带传动设计、一级圆柱齿轮减速器设计（含齿轮、轴、轴承、键、箱体）及润滑密封方式选择。要求绘制减速器装配图一张、零件图两到三张，并提交设计计算说明书一份，字数不少于8000字。
Based on belt conveyor requirements, students design the transmission scheme, select the motor, allocate the ratio, design the V-belt drive and a single-stage cylindrical gear reducer (gears, shafts, bearings, keys, housing), and choose lubrication and sealing. Submit one assembly drawing, two to three part drawings, and a calculation report of at least 8000 words.