Longjun Dong

Title: Innovations of Longjun Dong: Pioneering Rock Drilling Technologies

Introduction

Longjun Dong is a notable inventor based in Changsha, China. He has made significant contributions to the field of rock drilling technology, holding two patents that showcase his innovative approach to solving complex engineering challenges. His work is characterized by a blend of advanced robotics and acoustic emission techniques.

Latest Patents

One of Longjun Dong's latest patents is the "Rock-piercing flexible rock drilling robot and rock breaking method." This invention features a robot equipped with a control system, a head, and at least one tail. The head comprises a head housing, a propulsion turntable, a drilling mechanism, and a hydraulic propulsion system. The propulsion turntable includes a drill bit at its center and a cutting turntable surrounding it. The first and second driving mechanisms are connected to the drill bit and cutting turntable, respectively. The tail consists of a tail housing, an advancing and retreating power system, and a fixed support system. The head and tail are interconnected through flexible components, allowing for enhanced maneuverability.

Another significant patent is the "Method and system for identifying cavity position of structure based on global search." This method involves using a structure that requires cavity position identification as a target area. Acoustic emission sensors are arranged at key positions to acquire actual travel time of signals. Cavity models are constructed for the target area, and deviations between theoretical and actual travel times are calculated to identify the cavity position with minimum deviation.

Career Highlights

Longjun Dong is affiliated with Central South University, where he continues to advance his research and development in rock drilling technologies. His work has garnered attention for its practical applications in various engineering fields.

Collaborations

He collaborates with esteemed colleagues, including Yongchao Chen and Qingchun Hu, who contribute to his innovative projects and research endeavors.

Conclusion

Longjun Dong's contributions to rock drilling technology exemplify the spirit of innovation and problem-solving in engineering. His patents reflect a commitment to advancing the field and addressing real-world challenges through inventive solutions.