Top Drive Guide System with Telescoping Mast Tracks
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Solution Overview
Problem
The assembly and disassembly of torque guides for top drive units in drilling rigs are time-consuming and costly, as they require mounting and removal from mast sections during transport and operation.
Innovation Solution
A guide system comprising a lower track member, an upper track member, a slider, and a skate that allows the top drive unit to move along the mast sections without the need for assembly or disassembly, using pivotally connected and telescoping components that adjust between retracted and extended positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional guides are mounted to mast sections, then the top drive unit can be properly guided during operation, but assembly and disassembly are time-consuming and costly
Solution Approach 1:
The guide system is nested within the mast structure itself. The guide rails are integrated into the mast sections, allowing the top drive unit to be guided during operation while eliminating the need for separate assembly and disassembly of guide components. The mast sections telescope relative to each other while maintaining the integrated guide function throughout the range of motion.
Solution Approach 2:
The mast structure serves multiple functions: it provides structural support, enables telescoping motion for transport and operation, and integrates the guiding function directly into its design. This multi-functionality eliminates the need for separate guide assembly while maintaining reliable guidance during top drive operation.
2Reliability
If guides are mounted to mast sections for top drive operation, then proper guidance is achieved, but the guides must be removed before transport
Solution Approach 1:
The guide system is nested within the mast structure itself. The guide rails are integrated into the mast sections, allowing the top drive unit to be guided during operation while eliminating the need for separate assembly and disassembly of guide components. The mast sections telescope relative to each other while maintaining the integrated guide function throughout the range of motion.
Solution Approach 2:
The mast structure serves multiple functions: it provides structural support, enables telescoping motion for transport and operation, and integrates the guiding function directly into its design. This multi-functionality eliminates the need for separate guide assembly while maintaining reliable guidance during top drive operation.
3Adaptability or versatility
If the mast telescopes between retracted and extended positions, then transport and operational configurations are achieved, but guides must be assembled and disassembled
Solution Approach 1:
The guide system is nested within the mast structure itself. The guide rails are integrated into the mast sections, allowing the top drive unit to be guided during operation while eliminating the need for separate assembly and disassembly of guide components. The mast sections telescope relative to each other while maintaining the integrated guide function throughout the range of motion.
Solution Approach 2:
The mast structure serves multiple functions: it provides structural support, enables telescoping motion for transport and operation, and integrates the guiding function directly into its design. This multi-functionality eliminates the need for separate guide assembly while maintaining reliable guidance during top drive operation.
Data Source
AI summary
A method for forming a guide for a top drive unit includes connecting a lower track member to a lower mast section and connecting an upper track member to an upper mast section and telescoped with the lower track section. A slider is slidably positioned about the upper track member so the slider is movable along the upper track member. The slider has a lateral cross-sectional profile substantially the same size and shape as a lateral cross-sectional profile of the lower track member. The skate is slidably positioned about the lower track member to be movable along the lower track member and onto the slider. The skate travels along the upper track member via the slider. The skate is connectable to a top drive unit so the top drive unit is movable along the lower track member and the upper track member.