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随着农村经济的发展和旧城区的改造,对轻型塔机的需求也越来越大,因此要对轻型塔机进行改进或创新设计以适应经济发展的需要。对支持产品创新的有力工具TRIZ——发明问题解决理论及基于TRIZ理论的计算机辅助创新软件Pro/Innovator进行简单介绍;然后以QT20折臂式塔机为例,运用TRIZ理论的理想化分析对轻型折臂式塔机的起升、折臂机构合并的正确性和可行性进行了验证,并运用Pro/Innovator软件对轻型折臂式塔机的起升-折臂转换机构进行了系统分析,绘制了起升折臂机构的系统图,并指出该系统存在的缺陷,即起升折臂机构没有完全合并;最后将这两种机构完全合并而得到一种新的起升-折臂机构的绕绳方式,并对新绕绳方式的关键技术——小臂末端的钢丝绳固定装置进行了简单设计。该机构结构简单、操作方便、节约人力和时间。
With the development of rural economy and the transformation of old urban areas, the demand for light tower cranes is also growing. Therefore, it is necessary to improve or innovate light tower cranes to meet the needs of economic development. The article introduces TRIZ, a powerful tool for product innovation, and Pro / Innovator, a computer-aided innovation software based on TRIZ theory. Then, taking QT20 folding tower crane as an example, The correctness and feasibility of the joint-up of the arm-tower crane and the arm-folding tower crane were verified. Pro / Innovator software was used to systematically analyze the lift-arm conversion mechanism of the light arm tower crane The system diagram of lifting arm mechanism is pointed out and the defect of the system is pointed out that the lifting arm mechanism is not fully integrated. Finally, the two mechanisms are completely combined to obtain a new lifting - arm mechanism around Rope way, and has carried on the simple design to the new rope way key technology - the arm end rope sash device. The mechanism of simple structure, easy operation, saving manpower and time.