Motor Extraction Tool With Self-Aligning Bolts for Gearbox Removal
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Solution Overview
Problem
The disassembly of motors from gearboxes is complex, time-consuming, and inefficient due to their size, weight, and integration into larger systems, often requiring specialized lifting equipment and precise alignment, which complicates access and increases maintenance time.
Innovation Solution
A motor extraction tool with collars and extraction bolts that align with bolt holes in the motor and gearbox, allowing the bolts to be rotated to lift the motor away from the gearbox, facilitated by complementary collar structures and unthreaded ends to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motors are tightly bolted to gearboxes for secure connection, then reliability of connection is improved, but device complexity and difficulty of disassembly increase
Solution Approach 1:
The extraction tool is divided into separate components: collars that attach to the motor flange, extraction bolts that pass through alignment holes, and a gearbox interface. This segmentation allows the tool to be assembled and disassembled in simple steps without requiring complex specialized equipment, while still providing secure attachment during the extraction process.
2Power
If motors are integrated into larger systems for functional connection, then system performance is improved, but ease of operation for maintenance deteriorates
Solution Approach 1:
The extraction tool is designed to be self-aligning through complementary collar structures that automatically position themselves on the motor flange and align with the gearbox. The extraction bolts self-align through predetermined alignment holes, eliminating the need for complex alignment procedures or specialized lifting equipment, thereby simplifying maintenance operations while preserving system integration.
3Reliability
If specialized lifting equipment is used for motor removal, then safety of heavy motors is improved, but loss of time and equipment requirements increase
Solution Approach 1:
The extraction tool acts as an intermediary device between the motor-gearbox assembly and the removal process. The collars and extraction bolts create a mechanical leverage system that safely lifts the motor away from the gearbox without requiring external cranes or hoists. The tool distributes lifting forces through multiple contact points, ensuring safe removal while reducing maintenance time and equipment requirements.
4Manufacturing precision
If precise alignment is required for motor-gearbox connection, then manufacturing precision is improved, but ease of operation for disassembly deteriorates
Solution Approach 1:
The collars are pre-configured with extraction apertures and the extraction bolts are pre-configured with alignment holes that correspond to the motor flange bolt holes. This preliminary configuration ensures that when the tool is assembled, precise alignment is automatically achieved without requiring complex alignment procedures during disassembly. The complementary structures guide the components into proper alignment as they are assembled.
Data Source
AI summary
An integrated motor disconnect tool is mounted at the base of a motor, which is operationally coupled to a gearbox. The tool facilitates the disconnection of the motor from the gearbox via a series of procedural steps. It features a collar flange with an interior surface concentric to the motor's neutral axis, and includes a set of extraction bolts inserted through apertures located on the top surface of the tool.