Bearing Puller Hook Arm Assembly With Locking Connecting Disk
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Solution Overview
Problem
Existing bearing removal tools face challenges in secure and easy assembly, particularly in properly positioning and connecting hook arms to a driving member, limiting their effectiveness in removing bearings of varying sizes.
Innovation Solution
A bearing removal tool featuring a connecting disk with specific dimensional relationships and hook arms with openings and pads, allowing for easy assembly and secure engagement with the disk, and adaptable claws with springs for engaging with bearings, ensuring stable connection and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hook arms are connected to the driving member using conventional detachable means, then the tool can be assembled and disassembled, but the hook arms may not be properly positioned or securely connected
Solution Approach 1:
The connecting disk is segmented into multiple radial slots that can independently receive and secure multiple hook arms. Each slot acts as an independent connection mechanism, allowing individual hook arms to be securely positioned without affecting others, thus achieving both secure connection and ease of assembly/disassembly.
Solution Approach 2:
The radial slots on the connecting disk serve as an intermediary mechanism between the hook arms and the driving member. These slots provide a standardized interface that ensures proper positioning and secure connection of hook arms while maintaining simple assembly operations through a unified connection structure.
2Adaptability or versatility
If multiple differently sized hook arms are included in a tool kit to match different bearing sizes, then the tool can be applied to various bearings, but the assembly and selection process becomes more complex
Solution Approach 1:
The connecting disk with multiple radial slots provides a universal connection interface that can accommodate different sizes and configurations of hook arms. This unified structure allows various hook arms to be interconnected through the same mechanism, reducing tool kit complexity while maintaining versatility across different bearing sizes.
Solution Approach 2:
The radial slots on the connecting disk can dynamically adapt to receive hook arms of different sizes and configurations. The slots can be selectively engaged or disengaged based on the specific bearing removal task, allowing the tool assembly to be quickly reconfigured without complex assembly procedures.
3Reliability
If the connecting disk has uniform thickness throughout, then the structure is simpler to manufacture, but it cannot provide the necessary dimensional relationships for secure hook arm engagement
Solution Approach 1:
The connecting disk features non-uniform thickness distribution, with thicker regions at the radial slots to provide structural strength and secure engagement points for hook arms, while other areas maintain thinner profiles. This localized variation in thickness provides the necessary dimensional relationships for reliable connection without excessive material usage.
Solution Approach 2:
The solution moves from a two-dimensional uniform thickness approach to a three-dimensional variable thickness structure. The radial slots create localized thickness variations that provide secure engagement geometry, transforming the connecting disk from a simple flat structure to a sophisticated three-dimensional form that achieves both security and manufacturability.
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
Facilitates rapid and secure assembly and effective removal of bearings of different sizes by ensuring hook arms remain securely connected to the disk and engaged with the bearing, enhancing the ease and efficiency of the removal process.
Implementation Method 1
a spring (354) partially buried in a portion of the claw (34), with the exposed end of the spring (354) extending into the engaging groove (351) and pressing against one end of the arm body (31)
Data Source
AI summary
A bearing removal tool includes a plurality of hook arms and a connecting disk. Each hook arm has a connecting space for engaging with a peripheral portion of the connecting disk, and there are specific dimensional relationships between the connecting spaces and the connecting disk such that, once the connecting disk is fitted into the connecting spaces of the hook arms, the user only has to move the hook arms laterally for a predetermined distance in order for the hook arms to be restricted by the connecting disk and prevented from separating from the connecting disk. The bearing removal tool, therefore, can be put together more easily and more rapidly than its prior art counterparts.