摘  要

针对小口径薄壁钢管无损检测的需要，设计开发了一套水浸式点聚焦超声波双探头探伤检测系统。研究和分析了该探伤系统的工艺参数，论述了探伤机构的总体设计，并着重介绍了用于管材旋转送进的机械装置的工作原理及特点。该系统探伤灵敏度高，性能稳定可靠，对进一步研究和开发新型小口径无缝钢管超声波探伤机构有重要的理论和实践意义。
整机结构主要由电动机、机架、传动带、减速机构、丝杠、卡盘构成。由电动机产生动力通过带轮减速器将需要的动力传递到带轮上，带轮带动减速装置 ，减速装置将动力输出到卡盘和丝杠上面，从而带动整机装置运动
本论文研究内容摘要：
(1) 小直径钢管超声波探伤机构总体结构设计。
(2) 小直径钢管超声波探伤机构工作性能分析。
(3)电动机的选择。
(4)对小直径钢管超声波探伤机构的传动系统、执行部件及机架设计。
(5)对设计零件进行设计计算分析和校核。
(6)运用计算机辅助设计，对设计的零件进行三维建模。
(7)绘制整机装配图及重要部件装配图和设计零件的零件图。
 
关键词：超声波探伤；旋转送进机构；结构设计；三维建模

Abstract

Considering the needs of ultrasonic immersion non-destructive testing for thin wall and small diameter tubes，a testing system which based on ultrasonic water-immersed was designed and developed. Its technical parameters and structure was introduced，and the principle and characteristics of gyration and transmission system was especially emphasized. The system has high flaw detection sensitivity，stability and reliability. It provides important reference in theory and practice for research and development of ultrasonic testing system for steel seamless tubes with small diameter.
The structure is mainly composed of a motor, frame, transmission belt, reducer, screw, chuck. Produced by the motor power through a belt wheel speed reducer will need to transfer the power to the belt wheel, belt wheel drives the gear, the power output to the chuck and screw speed reducer to drive the movement of the above, the whole device
Abstract this thesis research:
(1) the overall structure design of small diameter steel pipe ultrasonic flaw detection mechanism.
(2) performance analysis of small diameter steel pipe ultrasonic flaw detection mechanism.
(3) the choice of motor.
(4) transmission system, execution unit and frame design for small diameter steel pipe ultrasonic flaw detection mechanism.
(5) the design of components for the design calculation and check.
(6) the use of computer aided design, 3D modeling on Design of parts.
(7) to draw the assembly drawing and parts assembly diagram and parts diagram design.
 
Key Words: Ultrasonic test；Gyration and transmission system.structure design of small diameter steel pipe ultrasonic flaw detection mechanism,, 3D modeling