Split Bearing Ring for Harvester Tine Carrier Assembly
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Solution Overview
Problem
The existing bearing arrangements for tine carriers in harvesters are cumbersome to assemble and difficult to exchange due to the need to push rings onto the tine carrier before assembly, leading to a time-consuming process.
Innovation Solution
A bearing arrangement comprising a split bearing bushing and ring, where the bearing bushing is initially attached to the support element and the split bearing ring can be pre-assembled with the tine carrier, allowing for radial connection and easy mounting and disassembly, with the ring portions being detachably connected and the bushing segments able to be offset and connected at different angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rings are pushed onto the tine carrier before assembly to provide axial support, then the tine carrier can be supported axially on the bearing arrangement, but the assembly process becomes time-consuming and ring exchange becomes cumbersome
Solution Approach 1:
The bearing ring is divided into two separable half-rings that can be assembled independently. Each half-ring can be pushed onto the tine carrier separately, allowing the bearing assembly to be completed without requiring the entire ring to be installed at once, thus reducing assembly time while maintaining axial support functionality
Solution Approach 2:
The half-rings are pre-positioned on the tine carrier before final assembly with the bearing bushing. This preliminary arrangement allows the tine carrier to be prepared in advance, and the bearing components to be assembled in a simplified sequence, reducing the overall assembly time while ensuring proper axial support
2Reliability
If rings are pushed onto the tine carrier before assembly, then axial support is achieved, but the exchange of rings becomes very cumbersome
Solution Approach 1:
The bearing ring is segmented into two half-rings that can be independently removed and replaced. This segmentation allows worn half-rings to be exchanged without requiring removal of the entire bearing assembly or disassembly of the tine carrier, making maintenance simple and efficient while preserving axial support functionality
Solution Approach 2:
The bearing arrangement is designed with detachable connections between the half-rings and the bearing bushing, allowing the half-rings to be dynamically removed and reinstalled. This dynamic design enables easy replacement of worn components during maintenance while maintaining the axial support capability during operation
Data Source
AI summary
A bearing arrangement (9) for a tine carrier (5) on a reel (1) of a harvester has first and second bearing elements and an attachment mechanism. The first bearing element is in the form of a bearing bushing (10) with a bearing bore (16) to rotatably support a tine carrier (5) around a rotational axis D. The attachment mechanism (17) attaches the bearing bushing (10) onto a support element (7) of the reel (1). The second bearing element is in the form of a bearing ring (25). The bearing ring (25) is fixable onto the tine carrier (5). The bearing ring (25) has a first ring portion (26) and a second ring portion (27). The ring portions (26, 27) are detachably connected to each other. The two bearing elements (10, 25) are rotatably held and axially supported relative to each other.