一种势能小车设计.doc

PAGE 4 PAGE 1 一种势能小车的设计 通过对第七届全国大学生工程训练“无碳重力势能小车”的赛题分析。对小车的结构部分进行设计。通过每一阶段的深入分析把设计尽可能向最优设计靠拢。 根据小车功能要求，把小车分为车架、原动机构、传动机构、转向机构、行走机构、微调机构六个模块，进行模块化设计。首先针对每一个模块进行多方案设计，通过综合对比选择出最优的方案组合。确定的方案为:车架采用三角底板式、原动机构采用了锥形轴、传动机构采用齿轮、转向机构采用曲柄摇杆、行走机构采用单轮驱动实现差速、微调机构采用微调螺母。然后对方案进行理论分析，综合考虑零件材料性能、加工工艺等，进而得出了小车的具体参数和运动规律。 关键字:工程训练;参赛作品;重力势能小车 Design of a potential energy trolley Based on the second national college engineering training entries carbon-free gravitational potential energy car analysis.Find cart in the design deficiencies. In order to improve the deficiency of the trolley car, a portion of the structure redesign.Through each phase of the in-depth analysis of the design as possible to move closer to optimal design. According to the functional requirements of the trolley car,divided into frame,driving mechanism,a transmission mechanism, a steering mechanism， a walking mechanism, a fine adjustment mechanism of six modules,modular design. First,for each module performs multiple design，through comprehensive comparison and choose the optimal scheme of combination. Determining the scheme are: frame with triangular bottom plate type,motive mechanism adopts a conical shaft, the drive mechanism adopts gear, steering mechanism with crank rocker, walking mechanism driven by a single wheel to achieve differential,fine tuning mechanism by fine adjustment nut. Then the scheme theory analysis, considering the parts and materials properties, processing technology, and then the specific parameters, and movement rules. Key words:Engineering training,entries, gravitational potential energy 目录 TOC \o 1-2 \h \u 25471 摘要 1 32208 Abstract 2 8853 1绪论 5 20755 1.1势能小车主体功能设计要求 5 8675 1.2小车的设计方法 6 17031 2势能小车的方案设计 7 2. 28559 1势能小车的原理 7 2.2 8973 势能小车行走方案的对比和分析7 2. 25217 3势能小车方案的确定 8 2. 14672 4小结 9 19599 3势能小车的总体方案设计 10 1598 3.1重块设计 11 3996 3.2原动机构的设计 11 24113 3.3传动机构的设计 12 18580 3.4转向机构的设计 13 1145 3.5行走机构的设计 14 10064 3.6微调机构的设计 15 9256 3.7驱动机构 16 690 3.8底板和支撑板的设计 17