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trenchless horizontal directional drill head unit design abstract

trenchless horizontal directional drilling is completed underground pipeline repair and laid one of the important mechanical device, the application of trenchless horizontal rigs plays an irreplaceable role during the process of

increasing urbanization. trenchless horizontal drilling rig, the power head plays a role of importance; it is the mechanical drive to the rig and implementation structures provide propulsion and drag back to the action, its performance directly affects the efficiency of the machine. the paper is based on thesefeatures of trenchless horizontal drill head for structure design, and carries on themodeling and dynamic simulation. first, this paper through the background and signifc-ance of trenchless horizontal drilling rigs starting

point, introduces the necessity to do this project; followed by an analysis of the internal structure of the different power head,choose the appropriate type of structure we need, and completed the selection and designof the internal structure; using the traditional method of design and strength check, verify the rationality of the design; finally, complete it¡¯s the 3d-modeling based on thewhole assembly model and transmission part of dynamic simulation. in this paper, in

terms of design and fatigue strength aspect basically with the requirement of product in our study the horizontal directional drilling.

key words: trenchless horizontal drill; power head; design; 3d-modeling. µÚÒ»Õ Ð÷ ÂÛ

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