Shaft Transfer Mechanism With Roller-Pin Coupling
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Solution Overview
Problem
The existing transfer mechanisms for rotation power from a driving shaft to driven shafts in thermal treatment processes require precise adjustment of concentricity and alignment, which can lead to connection failures if not accurately aligned, especially when using key grooves or flanges for coupling.
Innovation Solution
A transfer mechanism on a rotary table with a rotation shaft and disk, where driven shafts are turnably supported and equipped with rollers and pins that allow for contact and separation, enabling efficient power transfer without the need for precise alignment, as rollers engage with pins to facilitate rotation power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If key grooves or flanges are used for coupling between driving shaft and driven shafts, then connection reliability is improved, but alignment precision requirements increase
Solution Approach 1:
A coupling member is introduced as an intermediary between the driving shaft and driven shafts. This coupling member includes a coupling portion that engages with the driven shaft and a driving shaft engagement portion that contacts the driving shaft, serving as a mediator that transfers rotational force while accommodating misalignment between the shafts.
Solution Approach 2:
The contact interface between the driving shaft and coupling member is designed with a spherical surface on the driving shaft that contacts a corresponding spherical surface on the coupling member. This spherical contact allows for automatic adjustment of the contact point, enabling the system to adapt to variations in alignment while maintaining reliable power transfer.
2Reliability
If precise adjustment of concentricity and alignment is performed, then connection success rate is improved, but adjustment complexity and time increase
Solution Approach 1:
The spherical contact surfaces between the driving shaft and coupling member enable self-alignment. When the driving shaft rotates, the spherical contact allows the coupling member to automatically adjust its position and orientation, achieving proper alignment without requiring manual adjustment of concentricity or circumferential positioning.
Solution Approach 2:
The coupling mechanism transitions from a static, precision-dependent connection to a dynamic, self-adjusting connection. The spherical contact surfaces allow for continuous micro-adjustments during operation, enabling the system to maintain reliable connection even with initial misalignment, thereby eliminating complex adjustment procedures.
3Adaptability or versatility
If multiple driven shafts are arranged on the rotary table, then power distribution capability is improved, but coupling structure complexity increases
Solution Approach 1:
The coupling member is designed as a universal component that can engage with multiple different driven shafts arranged on the rotary table. The standardized coupling structure with spherical surfaces allows the same coupling member to be used for power transfer to any driven shaft, regardless of its position on the table, thereby simplifying the overall coupling system while maintaining versatile power distribution capability.
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 mechanism allows for secure and efficient transfer of rotation power between driving and driven shafts, simplifying the structure, reducing parts, and eliminating the need for high-accuracy alignment adjustments, ensuring continuous motion and reliable connection.
Implementation Method 1
a plurality of rollers that can turn around a radially extending shaft is arranged at intervals on an outer periphery of one of the driven shaft and the driving shaft in a circumferential direction
Data Source
AI summary
A structure of a transfer mechanism is supported by a bearing (15) attached to a disc (10) of a rotary table (1), connects between driven shafts (20) extending in a direction parallel to a rotation shaft (11) and a driving shaft (30) which rotates and drives the rotation shaft (11), and transfers rotation power from the driving shaft (30) to the driven shafts (20). Rollers (31) that turn around a radially extending shaft are arranged at intervals on an outer periphery of one of the driven shafts (20) and the driving shaft (30) in a circumferential direction, and at least one radially extending pins (23) are provided on an outer periphery of the other of the driven shafts (20) and the driving shaft (30), and the pins (23) enter among the rollers (31) arranged adjacent to one another in the circumferential direction in a state in which the driven shafts (20) and the driving shaft (30) are connected.