Remote Cutting Apparatus for Columnar Items
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Solution Overview
Problem
Existing underwater cutting devices for columnar items often deform the cut ends, making them unusable, and require manual operation, posing safety risks due to the need for workers to be near the cutting area.
Innovation Solution
A cutting apparatus with remotely powered, movable arms that clamp around the columnar item to secure and support it during cutting, minimizing deformation and keeping workers safe by allowing remote operation of the cutting blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pipe is crushed to cut it, then the cutting operation can be performed, but the pipe end becomes deformed and cannot be reused
Solution Approach 1:
The patent applies preliminary action by positioning support bands around the pipe sections adjacent to the cutting location before the cutting operation begins. These support bands are installed in advance to prevent deformation during cutting, ensuring the pipe end remains substantially round and reusable while still allowing the cutting operation to proceed efficiently
2Ease of operation
If workers are positioned near the cutting area to operate the device, then manual operation can be performed, but worker safety is compromised
Solution Approach 1:
The patent replaces manual mechanical operation with a remotely operated cutting device that can be controlled from a safe distance. The device incorporates remote control mechanisms that allow operators to perform cutting operations without being positioned near the cutting area, thereby maintaining ease of operation while significantly improving worker safety by eliminating direct exposure to hazardous cutting zones
3Productivity
If earth or mud is removed to make room for the tool, then the cutting operation can proceed, but excessive material is lost
Solution Approach 1:
The patent employs flexible support bands that can conform to the pipe surface and provide adequate support with minimal clearance requirements. These thin-film-like support structures allow the cutting operation to proceed without requiring extensive removal of surrounding earth or mud, as the flexible bands can function effectively in tight spaces with minimal material removal
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 apparatus effectively cuts columnar items with minimal deformation, enabling the reuse of cut ends and ensuring worker safety by maintaining the cutting mechanism away from human operators.
Implementation Method 1
The arms may be held in place with hydraulic actuators that pivot the arms between their disengaged and engaged positions.
Implementation Method 2
A blade is carried by the frame with a blade actuator associated with the blade; the blade actuator being adapted to move the blade between retracted and extended positions.
Data Source
AI summary
A cutting apparatus for columnar items such as metal pipes has a base frame that supports a movable cutting blade. At least one blade actuator is disposed between the blade and the frame to drive the blade back and forth between retracted and extended positions. First and second arms are pivotably connected to the frame and moveable between disengaged and engaged positions. An arm actuator is associated with each arm and drives each arm between the disengaged and engaged positions. A segmented collar engages the entire circumference of the columnar item being cut. The blade is supported by the frame and the arms during the cutting process while the collar supports the material of the columnar item adjacent the cut.