scholarly journals Highly Repeatable Rope Winch Design With Multiple Windings and Differential Gear Mechanism

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 87291-87308
Author(s):  
Sungkeun Yoo ◽  
Taegyun Kim ◽  
Myoungjae Seo ◽  
Joohyun Oh ◽  
Jongwon Kim ◽  
...  
Keyword(s):  
Differential Gear ◽  
Gear Mechanism ◽  
Multiple Windings

Development of modularized in-pipe inspection robotic system: MRINSPECT VII+

Robotica ◽  
2021 ◽  
pp. 1-24
Author(s):  
Heesik Jang ◽  
Ho Moon Kim ◽  
Min Sub Lee ◽  
Yong Heon Song ◽  
Yoongeon Lee ◽  
...  
Keyword(s):  
Autonomous Navigation ◽  
Ccd Camera ◽  
Pipeline Inspection ◽  
Inspection Robot ◽  
Ground Station ◽  
Computing Unit ◽  
Differential Gear ◽  
Sensor Module ◽  
Communication Module ◽  
Gear Mechanism

Abstract This paper presents a modularized autonomous pipeline inspection robot called MRINSPECT VII+, which we recently developed. MRINSPECT VII+ is aimed at inspect in-service urban gas pipelines with a diameter of 200 mm. The robot consists of five basic modules: driving, sensing, joint, and battery modules. For nondestructive testing (NDT), an NDT module can be added to the system. The driving module uses a multiaxial differential gear mechanism to provide traction forces to the robot. The sensor module recognizes the pipeline element using position-sensitive detector (PSD) sensors and a CCD camera. The control module contains a computing unit and manages the robot’s autonomous navigation. The battery module supplies power to the system. Each module is connected via backdrivable active joint modules, which provide flexibility while moving inside narrow pipelines. Additionally, the wireless communication module helps the system communicate with the ground station. We tested MRINSPECT VII+ in real pipeline environments and validated its feasibility successfully.

2-2D differential gear mechanism for robot moving inside pipelines

2015 ◽  
Author(s):  
Ho Moon Kim ◽  
Yun Seok Choi ◽  
Hyeong Min Mun ◽  
Seung Ung Yang ◽  
Chan Min Park ◽  
...  
Keyword(s):  
Differential Gear ◽  
Gear Mechanism

Kinematic Analysis of the Antikythera Gear Mechanism by Means of Graph Theory

2002 ◽  
Author(s):  
Ettore Pennestri` ◽  
Pier Paolo Valentini ◽  
Ferdinando Petti
Keyword(s):  
Graph Theory ◽  
Mechanism Design ◽  
Kinematic Analysis ◽  
Western Culture ◽  
Gear Train ◽  
Kinematic Structure ◽  
Differential Gear ◽  
Gear Mechanism ◽  
Mechanical Devices

The Antikythera mechanism is one of the most extraordinary examples of the degree of sophistication reached by the Hellenistic culture in the field of mechanism design. This calendar mechanism not only witness the degree of astronomic knowledge of the greeks, but also their capability to conceive and build marvelous mechanical devices. The mechanism is the first documented example of differential gear arrangement in western culture. The paper gives first a description of the kinematic structure of the mechanism in terms by means of a graph, then a full kinematic analysis of this complex gear train is performed. The results of our kinematic analysis, only partially coincident with those obtained by De Solla Price, match very closely the discoveries made by the Greek astronomer Hipparcus about the duration of the lunar months. There is also a conjecture on the kinematic structure and gear dimensions of some of the missing parts. In the Appendix is reported the listing of the Maple program developed for the kinematic analysis.

Novel Mechanism for In-Pipe Robot Based on a Multiaxial Differential Gear Mechanism

2017 ◽  
Vol 22 (1) ◽  
pp. 227-235 ◽  
Author(s):  
Ho Moon Kim ◽  
Yun Seok Choi ◽  
Yoon Geon Lee ◽  
Hyouk Ryeol Choi
Keyword(s):  
Differential Gear ◽  
Gear Mechanism

An In-pipe robot with multi-axial differential gear mechanism

2013 ◽  
Author(s):  
Ho Moon Kim ◽  
Jung Seok Suh ◽  
Yun Seok Choi ◽  
Tran Duc Trong ◽  
Hyungpil Moon ◽  
...  
Keyword(s):  
Differential Gear ◽  
Gear Mechanism

A New Differential Gear Mechanism

2004 ◽  
Vol 2004 (0) ◽  
pp. 92-93
Author(s):  
Hiroshi KOBAYASHI ◽  
Yoshiki KATO ◽  
Mitsuhiro KOSEKI
Keyword(s):  
Differential Gear ◽  
Gear Mechanism
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