Reversing Wheel Set Friction Reduction via Mediator Ring
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Solution Overview
Problem
Conventional banknote separating devices in financial self-service equipment often experience reduced service life and functional failures due to friction resistance issues in the reverse wheel assembly, leading to unsmooth rotation or inability to rotate, which necessitates frequent adjustments and can result in failed banknote separation.
Innovation Solution
A new method of fixing the one-way bearing in the reverse wheel set, where the one-way bearing stop ring is designed with a protruding strip that embeds into grooves in the reverse wheel fixing frame and the one-way bearing, separating the stationary and movable ends to prevent friction, allowing for smooth and free rotation of the reverse wheel assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the one-way bearing is fixed by the conventional method with the E-shaped snap ring contacting the one-way bearing end surface, then the reverse wheel assembly can be assembled, but friction resistance is generated that restricts free rotation and reduces service life
Solution Approach 1:
The patent introduces a one-way bearing stop ring as an intermediary component between the E-shaped snap ring and the one-way bearing. This stop ring with its protruding strip contacts only the outer ring of the flanged bearing, thereby mediating the connection and preventing direct contact between the snap ring and the one-way bearing, which eliminates the friction resistance that was restricting the reverse wheel assembly rotation.
2Duration of action of moving object
If the reverse wheel assembly rotates unsmoothly due to friction resistance, then the service life is reduced and frequent adjustments are needed, but the friction resistance itself is the harmful factor causing the problem
Solution Approach 1:
The one-way bearing stop ring serves as a mediator that separates the stationary end (E-shaped snap ring) from the movable end (one-way bearing), preventing direct frictional contact. The protruding strip on the stop ring contacts only the outer ring of the flanged bearing, allowing the reverse wheel assembly to rotate smoothly without friction resistance, thereby extending service life and eliminating the need for frequent adjustments.
3Device complexity
If the one-way bearing and reverse wheel fixing frame are directly coupled, then the structure is simple, but friction resistance is generated between stationary and movable ends
Solution Approach 1:
The patent segments the direct coupling between the reverse wheel fixing frame and the one-way bearing by introducing the one-way bearing stop ring as a separate component. The stop ring with its protruding strip creates distinct contact points: one with the outer ring of the flanged bearing and another with the one-way bearing, thereby segmenting the force transmission path and eliminating friction between the stationary and movable ends while maintaining structural simplicity.
Data Source
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AI summary
A paper money distributing device, comprising a paper money distributing wheel set and a reversing wheel set (10) cooperating with the same; the reversing wheel set (10) comprises a reversing wheel set rotation shaft (11), a reversing wheel fixation frame (12) and a reversing wheel assembly (17); one end of the reversing wheel assembly (17) sequentially passes through an E-type ring (13), a flange bearing (14), a one-way bearing limit ring (15) and a one-way bearing (16) installed on the reversing wheel fixation frame (12); the one-way bearing limit ring (15) links the one-way bearing (16) and the reversing wheel fixation frame (12) into a static rigid body, and only contacts an outer ring of the flange bearing (14). Employing the principle of an inner ring and an outer ring of the flange bearing (14) being disconnected, the present invention enables a static end and a movable end to have no friction therebetween, thus ensuring the reversing wheel assembly (17) to rotate freely and smoothly, extending a service life of a paper money distributing device, and ensuring reliability of a function of the paper money distributing device.