哈尔滨工程大学学报2018，Vol.39Issue(5)：806-812,7.DOI:10.11990/jheu.201611036
一种压电换能器直接驱动钻具的超声波钻探器
Ultrasonic driller with driving tool directly driven by piezoelectric transducer
摘要
Abstract
To satisfy the need for rock sampling devices in extremely harsh deep-space exploration environments,in this paper,we propose an ultrasonic driller, based on the principle of piezoelectric driving, which could be in-stalled on the robotic arm of a rover to act as an end effector.In this driller,the ultrasonic transducer directly im-pacts the drilling tool,driving the drill tool to work at a high frequency to break rock.We designed the piezoelec-tric actuation unit in detail and analyzed the impact between the ultrasonic horn and drill rod.In the experiments, we investigated the drilling performance of the ultrasonic driller in sandrock and the effect of the drilling pressure and the length of drilling tool on the drilling performance.The results indicate that the proposed ultrasonic driller has a high drilling efficiency in sandstone and that the necessary drilling pressure is low,which makes it useful for rock sampling of extraterrestrial celestial bodies with a weak gravitational field,such as comets and minor planets.关键词
深空探测/钻探器/超声波钻/压电换能器/钻具/波动方程/阻抗测试/阶梯型变幅杆Key words
deep-space exploration/driller/ultrasonic drill/piezoelectric transducer/drill tool/wave equation/impedance test/stepped horn分类
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柏德恩,王印超,李贺,邓宗全,全齐全,姜生元,唐德威..一种压电换能器直接驱动钻具的超声波钻探器[J].哈尔滨工程大学学报,2018,39(5):806-812,7.基金项目
国家自然科学基金项目(61403106) （61403106）
机器人技术与系统国家重点实验室开放基金项目(SKLRS-2015-MS-02). （SKLRS-2015-MS-02）
