电动冲击扳手T型轴材质及热处理工艺的合理选择  

The Method of Selecting Suitable Material&Heat Treatment Process for T-shaped Shaft of Electric Impact Wrench

作　　者：游瑞华 张峰 王凤岗 You Ruihua;Zhang Feng;Wang Fenggang(Zhejiang YAT Electric Appliance Co.,Ltd.,Jiaxing 314000,Zhejiang)

机构地区：[1]浙江亚特电器股份有限公司,浙江嘉兴314000

出　　处：《电动工具》2022年第5期11-14,共4页Electric Tool

摘　　要：电动冲击扳手通过高速旋转的打击块不断打击T型轴而产生径向旋转力矩,从而拧紧和拆卸螺纹紧固件。T型轴在承受打击块的频繁打击以及交变应力的作用下,出现磨损或断裂现象,达到一定程度后,致使冲击力矩下降,整机性能也随之下降或丧失。针对不同扭矩产品系列,分析相应的材料选用和热处理工艺流程,旨在提升该类电动工具的实际使用寿命与产品可靠性。The electric impact wrench generates radial rotation torque by continuously striking the T-shaped shaft with a high-speed rotating striking block,so as to tighten and disassemble threaded fasteners.Under the action of frequent blows and alternating stresses from striking blocks,the T-shaped shaft will be worn or broken.When it reaches a certain extent,the impact torque will decrease with the performance of the tool decreased or lost.For product series with different torque,the corresponding material selection and heat treatment process are analyzed,aiming at improving the actual service life and product reliability of this electric tool.

关 键 词：电动冲击扳手 电动工具 材料 热处理工艺 冲击力矩 使用寿命 

分 类 号：TB302.4[一般工业技术—材料科学与工程]