Rig Movement Assembly with Steering Cam Arm Brackets
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Solution Overview
Problem
Existing systems for moving heavy equipment like drilling rigs lack the capability for automatic directional positioning and steering without manual intervention, requiring manual rotation and positioning of components.
Innovation Solution
A rig movement and rotation assembly featuring pairs of vertical lifting jacks with roller assemblies and skid pads, connected to a turntable via a roller track, and a steering cam arm bracket with a connecting link and actuator for automatic directional positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual rotation and positioning of jack pads is used, then the system structure is simpler, but the ease of operation deteriorates due to requiring manual intervention
Solution Approach 1:
The system performs automatic directional positioning and steering without manual intervention. The control system automatically controls the rotation of roller assemblies and positioning of lifting jacks, making the system serve itself rather than requiring external manual operation.
Solution Approach 2:
The patent replaces manual mechanical operation with an automated control system. The control system electronically controls the rotation actuators and lifting jack positioning, substituting manual mechanical manipulation with automated control mechanisms.
2Extent of automation
If automated steering system is implemented, then the extent of automation is improved, but the device complexity worsens due to additional control mechanisms
Solution Approach 1:
The control system serves multiple functions: it controls the rotation of roller assemblies, manages the positioning of lifting jacks, and coordinates the overall movement and steering of the substructure. This multi-functionality justifies the added complexity by consolidating control operations into a single automated system.
Solution Approach 2:
The automated control system enables the equipment to perform directional positioning and steering autonomously without manual intervention, achieving self-service operation that enhances automation extent.
3Manufacturing precision
If incremental movement system with fine tune mechanism is used, then the manufacturing precision is improved, but the device complexity worsens
Solution Approach 1:
The system provides dynamic positioning control where the roller assemblies can be rotated to precise angular positions and the lifting jacks can be positioned incrementally. The control system enables dynamic adjustment and fine-tuning of positions without requiring complex mechanical fine-tune mechanisms.
Solution Approach 2:
The control system monitors and controls the position of roller assemblies and lifting jacks, enabling precise positioning through automated feedback control rather than complex mechanical adjustment mechanisms.
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
Enables the automatic and incremental movement of heavy equipment in any direction, eliminating the need for manual intervention in steering and positioning, enhancing efficiency and safety.
Implementation Method 1
The rollers engage a flat surface on a roller track
Implementation Method 2
Each of the vertical lifting jacks moves between a retracted and an extended position
Implementation Method 3
A pair of parallel skidding cylinders incrementally moves the roller housing and rollers on the roller track
Data Source
AI summary
A rig movement and rotation assembly, which includes a first pair of vertical lifting jacks and a second pair of vertical lifting jacks. Each of the vertical lifting jacks has an upper end connected to a rig substructure and a lower end. A roller assembly is connected to the lower end of each of the vertical lifting jacks with each roller assembly rotatable on an axis. A steering cam arm bracket extends from each roller assembly. A first connecting link joins the steering cam arm brackets from the first pair of lifting jacks together and a second connecting link joins the steering cam arm brackets from the second pair of lifting jacks together. An actuator extends or retracts the length of each of the connecting links. A skid jack for each of the vertical lifting jacks engages with the roller assembly.