1、 本科毕业设计说明书本科毕业设计说明书 大扭矩液压扳手设计大扭矩液压扳手设计 THE DESIGN OF HYDRAULIC WRENCH 学院（部） ： 专业班级： 学生姓名： 指导教师： 年 月 日 I 大扭矩液压扳手设计 摘要 随着国内电力，化工石油，工程建设的快速发展，这些行业中，大扭矩紧固 件的拆装作业在传统的人力方法下，强度高，效率低。使用液压扳手可以有效的 提高作业效率，提升安装精度。本设计就是优化液压扳手便携性和各种工况适应 性。 在设计里，采用液压缸和机架一体铸造成型，简化液压扳手在机架方面的结 构， 将进有出有管道铸造在液压缸缸体内， 为节约材料， 提高液压扳手的便携性。
2、采用偏心液压缸设计。 在设计里，为了减小活塞杆在推动摇臂过程中可能产生的侧向力，在机架上 设计一平行滑道。 平行滑道不开穿机架， 以保证液压扳手整体具有较好的密封性。 活塞杆在平行滑道内移动，活塞杆距棘轮中心距会不断变化，在摇臂上长孔来解 决。 当液压缸和机架采用一体成型， 液压缸和机架在结构方面和机架与反作用力 臂连接方面会有一些问题， 设计通过液压缸缸体结构的变化及连接形式改变来解 决这些问题。 关键词：机架，液压缸，活塞杆，摇臂，反作用力臂关键词：机架，液压缸，活塞杆，摇臂，反作用力臂 II THE DESIGN OF HYDRAULIC WRENCH ABSTRACT With the
3、 domestic electric power, petroleum and chemical industry, the rapid development of engineering construction, these industries, disassembling and assembling large torque fasteners in the traditional human method, high strength, low efficiency. The use of hydraulic wrench can effectively improve the
4、work efficiency, improve the installation accuracy. This design is the optimization of hydraulic wrench portability and adaptability. In the design, the hydraulic cylinder and the frame is integrally molded, simplified hydraulic wrench on the frame of structure, the entrance pipe cast in the cylinde
5、r body, in order to save materials, improve the portable hydraulic wrench. The eccentric design of hydraulic cylinder. In the design, in order to reduce the lateral force of piston rod in the promotion of the rocker arm might occur during the process of design, a parallel slide on the frame. Paralle
6、l slide without wearing a frame, in order to ensure good sealing of the whole hydraulic wrench. The piston rod to move in parallel slideway, the piston rod from the ratchet wheel center distance will continue to change, on the rocker Kong Lai solution. When the hydraulic cylinder and the frame adopts integral forming, hydraulic cylinder and the frame structure and frame and reaction arm connection will have some problems, through the design to solve these problems an
