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 Introduction of horizontal directional drilling machine 07-Structure of horizontal directional drilling power head

Within horizontal drilling rigs, the power head is a crucial element, driven by a high-speed motor and a speed reducer. In this article, we delve into the core functions of the power head and explore the design variations that exist in these essential components.

Understanding the Power Head’s Roles: The power head serves several vital functions, including:

  • Enabling the rotation of the drill bit.
  • Absorbing reaction forces during drilling and towing.
  • Facilitating the circulation of mud through the drill pipe.

Homogeneity and Diversification in Domestic Designs: While the fundamental structure of power heads in domestic horizontal directional drills remains consistent, differences arise due to variations in reducer selection. The selection process considers factors like tonnage and specific manufacturer preferences, resulting in differing reduction ratios and performance metrics.

Adapting Reduction Ratios: Changes in reduction gear ratios directly influence the overall reduction ratio of the power head. These adjustments emerge from distinct reducer choices by manufacturers, tailored to their rig’s tonnage and operational requirements.

Transmission Modes: Chain vs. Gear: Power heads typically adopt two transmission modes: chain and gear. For instance, CASE rigs employ chain transmission. Chain transmission boasts simplicity in manufacturing, yet it presents limitations including subpar transmission balance, reduced lifespan, and constrained output torque.

Conclusion: Deciphering Power Head Dynamics Gaining insight into power head structures is pivotal for comprehending their pivotal role in horizontal directional drilling rigs. Amidst uniform designs and personalized adaptations, the selection between chain and gear transmission modes plays a critical role, shaping efficiency, durability, and overall rig performance.

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