一种用于狭小操作空间的柔性可回程扳手

发布时间：2018-03-04 03:34

本文选题：柔性扳手　切入点：狭小操作空间　出处：《机械工程学报》2015年13期 　论文类型：期刊论文

【摘要】：棘轮扳手因其可回程特性能够实现连续的装配操作,但其扳手头内部结构复杂且体积较大,难以在狭小空间内进行装配操作,因此提出一种用于狭小操作空间的新型柔性可回程扳手。通过在扳手中引入开口和柔性铰链,并在几何轮廓分析的基础上确定了开口与柔性铰链位置。运用回程过程中相对转动过程的几何约束关系以及旋紧过程中最大旋紧力矩给出柔性铰链及扳手头的关键尺寸的确定准则,实现了类似棘轮扳手的可回程功能,从而使柔性扳手在装配中可以实现连续操作,提高工作效率。柔性扳手结构简单,免于装配,降低了制作成本。进行柔性扳手的样机制作和螺纹紧固件的装配试验,验证了设计的可行性。
[Abstract]:The ratchet wrench can realize the continuous assembly operation because of its recoverable characteristic, but the internal structure of the wrench head is complex and large, so it is difficult to carry out the assembly operation in the narrow space. Therefore, a new flexible recoverable wrench for small operating space is proposed. By introducing openings and flexure hinges into the wrench, On the basis of geometric contour analysis, the position of opening and flexure hinge is determined. The closing of flexure hinge and spanner is given by using the geometric constraint relation of relative rotation process in the return course and the maximum spin moment in the process of tightening. Criteria for determining key sizes, The retractable function similar to ratchet wrench is realized, so that the flexible wrench can be operated continuously in assembly, and the working efficiency is improved. The flexible wrench is simple in structure and free from assembly. The production cost is reduced. The feasibility of the design is verified by making the prototype of the flexible wrench and the assembly test of the thread fastener.
【作者单位】：西安电子科技大学机电工程学院;
【基金】：国家自然科学基金(51175396) 中央高校基本科研业务费专项资金(K5051204021) 陕西省科技统筹(2014KTCQ01-27)资助项目
【分类号】：TS914.51

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