取代液压缸将电动缸应用于深海环境，电动缸设计需要解决一系列问题。深海水压环境，电动缸需要满足自锁要求，通过自锁机构的分析，优选可靠性好的梯形丝杆副作为传动机构，给出了校核公式。采用组合动密封及推杆热喷陶设计，增强了深海电动缸推杆往复动密封的可靠性。针对电动缸重量及尺寸的限制，采用三维软件有限元分析插件，同步实现对电动缸零件应力和应变的仿真校核。
In order to replace the hydraulic cylinder and apply the electric cylinder to the deep-sea environment, a series of problems need to be solved in the design of the electric cylinder. In the deep water pressure environment, the electric cylinder needs to meet the self-locking requirements. Through the analysis of the self-locking mechanism, the trapezoidal screw pair with good reliability is selected as the transmission mechanism, and the checking formula is given. The reliability of reciprocating dynamic seal of push rod in deep-sea electric cylinder is enhanced by using combined dynamic seal and thermal spraying ceramic design of push rod. Aiming at the limitation of the weight and size of the electric cylinder, a three-dimensional software finite element analysis plug-in is used to synchronously realize the simulation and verification of the stress and strain of the electric cylinder parts.
2021,43(7): 109-113 收稿日期：2020-09-08
DOI：10.3404/j.issn.1672-7649.2021.07.022
分类号：TH132.1;TB42
作者简介：潘平(1971-),男,硕士,高级工程师,研究方向为机电总体及设计
参考文献：
[1] 闫飞飞, 电动缸的测试系统设计及建模[D]. 合肥:中国科学技术大学, 2011.
YAN Fei-fei, Design of test system and modeling of electric cylinder[D].Hefei:University of Science and Technology of China, 2011.
[2] 周昊, 电动缸位置伺服控制系统设计[D]. 大连:大连海事大学, 2014.
ZHOU Hao, Design of Servo Position Control System for Electric Cylinder[D],Dalian:Dalian Maritime University, 2014.
[3] 蓝坤彦. 力学中的"自锁"现象探秘[J]. 物理教师, 2008(12):33-34
LAN Kun-yan. The self-locking phenomenon in mechanics[J]. Physics teacher, 2008(12):33-34
[4] 陈超, 赵升吨, 崔敏超, 等. 电动缸的研究现状与发展趋势[J]. 机械传动, 2015(3):181-186
CHEN Chao, ZHAO Sheng-don, CUI Min-chao et al. Research status and development trend of electric cylinder[J]. Mechanical transmission, 2015(3):181-186
[5] 朱正平. 蜗杆蜗轮机构的自锁性及其失效原因分析[J]. 中国新技术新产品, 2016(7):43-44
ZHU Zheng-ping. Analysis of self-locking and failure of worm gear mechanism[J]. New Technology New Products of China, 2016(7):43-44
[6] 朱正平. 行星齿轮减速器效率及自锁分析[J]. 科技与企业, 2016(9):176
ZHU Zheng-ping. Efficiency and self-locking analysis of planetary gear reducer[J]. Technology & Enterprise, 2016(9):176
[7] 饶振钢, 王勇卫. 滚珠丝杠副及自锁装置[M]. 北京:国防工业出版社, 1990.
[8] 杨继隆, 俞浙青, 裴翔, 等. 液压往复密封的技术进展[J]. 中国机械工程, 2001(7):842-846
YANG Ji-long, YU zhe-qing, PEI Xiang et. Technical progress of hydraulic reciprocating seal[J]. China Mechanical Engineering, 2001(7):842-846
[9] 姚碎全. 斯特封密封特性分析[J]. 液压气动与密封, 2003(5):33-35
YAO Xian-quan. Analysis Seal Specialty of Turcon-stepseal k[J]. Hydraulics Pneumatics & Seals, 2003(5):33-35
[10] 王国荣, 胡刚, 何霞, 等. 往复密封轴用Y形密封圈密封性能分析[J]. 机械设计与研究, 2014(6):37-42
WANG Guo-rong, HU Gang, HE Xia et al. Sealing performance analysis of Y-ring used on reciprocating seal shaft[J]. Machine Design & Research, 2014(6):37-42
[11] 陈国强, 陶友瑞. 高压水介质往复密封接触特性有限元分析[J]. 润滑与密封, 2015(5):42-46
CHEN Guo-qiang, TAO You-Rui. Finite element analysis of contact characteristics of reciprocating seal structure under high-pressure water medium[J]. Lubrication Engineering, 2015(5):42-46
[12] 张宇, 刘萍, 张树人. 陶瓷涂层液压缸及位移测量系统[J]. 液压气动与密封, 2000(3):49-50
ZHANG Yu, LIU Ping, ZHANG Shu-ren. Ceramic coated hydraulic cylinder and displacement measurement system[J]. Hydraulics Pneumatics & Seals, 2000(3):49-50
[13] DS SolidWorks公司. SolidWorks Simulation基础教程[M]. 北京:机械工业出版社, 2010.
