Rotary Socket Wrench Attachment for Steel Pipe Piling Torque
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Solution Overview
Problem
Existing machinery for constructing reinforced concrete piling using augers is not adapted for efficiently placing sectional steel pipe piling into the ground, as it lacks a suitable mechanism to transmit torque effectively for deep installation.
Innovation Solution
A rotary socket wrench attachment with splines and axial socket wrench flats is integrated into the rotary drive mechanism, allowing for axial movement and torque transmission to the steel pipe sections, enabling efficient rotation and deep placement of sectional steel pipe piling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing auger rotating machinery is used without modification, then the existing infrastructure can be utilized, but it cannot effectively transmit torque for deep steel pipe piling installation
Solution Approach 1:
The rotary drive mechanism is designed with a universal interface that can accommodate both auger operations and steel pipe piling installation. The spline connection between the rotary output shaft and output member, combined with the socket wrench attachment, enables the same machinery to perform multiple functions - rotating augers for concrete piling and transmitting torque for driving steel pipe sections into the ground.
2Power
If a socket wrench attachment is added to the rotary output member, then torque transmission for steel pipe piling is enabled, but the device complexity increases
Solution Approach 1:
The socket wrench attachment is designed as a nested structure where the axial socket with wrench flats contains the torque transmission interface. The attachment itself is a compact assembly that fits onto the rotary output member, with the socket portion receiving the pipe section and the flange portion providing the mounting interface. This nested design transmits torque efficiently while minimizing the increase in overall structural complexity.
3Ease of operation
If the socket wrench attachment allows axial movement on splines, then the pipe sections can be moved axially during installation, but the reliability of torque transmission may be compromised
Solution Approach 1:
The connection between the rotary output shaft and output member uses splines that allow controlled axial movement while maintaining rotational torque transmission. This dynamic connection enables the pipe sections to be pushed axially into the ground during installation while the spline teeth continuously engage to transmit rotational torque from the drive mechanism to the pipe, ensuring reliable operation throughout the installation process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the effective transmission of torque to steel pipe sections, facilitating their deep installation into the ground by adapting the existing auger machinery for sectional steel pipe piling, enhancing the efficiency of the piling process.
Implementation Method 1
During rotation of the drive mechanism, the splines transmit torque from the output shaft to the output member
Implementation Method 2
the wrench flats in the socket of the output member transmit torque from the socket wrench to the rotary steel piling
Data Source
AI summary
A socket wrench attachment (SRA) is connected by a circular array of bolts (28) connecting the mounting flange (30) to the rotary output member (22) on a rotary output shaft (20). The shaft (20) is a part of a rotary drive mechanism (12) which is mounted for longitudinal travel along a tower (14).