Modeling and Design of Hydraulic Driving Hobbyhorse Clamp Holder

Abstract:

There are many kind of clamps used in geological exploration, and the hobbyhorse clamp obtains the widespread application because of its simple structure and reliable clasp. But theoretical analysis shows problem of the hobbyhorse clamp that clamping force is too small to overcome the resultant force of dead weight of drill pipe and tangential force from unscrewing torsional moment when drill rods in underground hole are tailed off gradually. This paper bring forward a new project on the basis of hobbyhorse clamp holder, established its static mechanics model based on the structural and mechanical analysis. Practice application has proved that the design is successful.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 2000-2004
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.2000
• Online since: November 2011
• Authors: Bo Li, Wen Lin Zhu, Hou Xiu Gao, Qi Zhang
• Keywords: Boring Mechanics, Clamp Holder, Finite Element Analysis (FEA)

References

[1] Mitchell, William J. Drill rod clamp. United States Patent 1730619. Publication Date: 10/08/(1929).

[2] Jonsson, Gunnar (Täby, SE), Odlozinski, Guenter (Barrie, CA). Drill rod holder. United States Patent 6860343. Application Number: 10/293967 Publication Date: 03/01/(2005).