Split Large-Diameter Bearing Assembly with Taper Pin Realignment
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Solution Overview
Problem
Large-diameter rolling bearings face challenges during assembly due to small misalignments between split ring parts, leading to laborious realignment and increased costs as the assembly process is interrupted.
Innovation Solution
The use of taper pins extending into aligned through-holes of split ring parts, with nuts screwed onto the pins, allows for realignment by tightening the nuts, ensuring proper alignment and secure assembly without the need for additional fastening methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional fastening methods are used to join split ring parts, then the parts can be securely assembled, but small misalignments between parts require laborious realignment and interrupt the assembly process
Solution Approach 1:
The invention changes the geometric parameter of the through-holes by providing tapered portions with a specific taper angle (α) between 5° and 15°. This parameter change allows the holes to self-align the split ring parts during assembly, eliminating the need for laborious realignment and reducing assembly interruptions while maintaining secure joining.
2Strength
If traditional fastening methods are used to join split ring parts, then the parts can be securely assembled, but misalignments require disassembly and realignment which increases assembly costs
Solution Approach 1:
The tapered geometry of the through-holes with a controlled taper angle ensures proper alignment during assembly, preventing the need for repeated disassembly and realignment. This reduces labor costs and manufacturing complexity while the tapered design itself provides adequate joining strength for the application.
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
This solution enables efficient realignment and secure assembly of split ring parts, reducing assembly interruptions and costs by allowing for precise alignment and secure attachment using taper pins and nuts, thus facilitating smoother and more cost-effective assembly processes.
Implementation Method 1
each of the aligned through-holes (18, 20) comprises at least one tapered portion (18a, 20a). Thanks to the invention, if during an assembly of a first ring (10) there are small misalignments between the through-holes (18, 20) of the first and second parts (14, 16), these parts can be realigned by mounting the taper pins (26) into the holes (18, 20) and tightening the nuts (28).
Data Source
AI summary
A bearing includes first and second rings and a plurality of rolling elements supporting the rings for relative rotation. At least the first ring is an axially split ring formed from a first part and a second part stacked against other in the axial direction. The first part includes first tapered through-holes and the second part includes second tapered through-holes axially aligned with the first tapered through-holes, and a plurality of taper pins extend in the aligned tapered through-holes of the first and second parts. Each of the taper pins has a threaded end portion, each of the taper pins contacts the first and second tapered through-holes, and a plurality of nuts are screwed onto the threaded end portions of the taper pins.