Embedded Torque Limiter Damper With Compact Nested Assembly
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Solution Overview
Problem
Existing torque limiter embedded damper devices are limited in radial compactness and cannot be combined after separate assembly due to the radial positioning of components, making them difficult to manufacture and integrate effectively.
Innovation Solution
The design incorporates a damper unit with a first rotor, a second rotor, a stopper mechanism, and an elastic member, where the torque limiter unit is integrated using a friction plate and fixation member that penetrates a cutout in the stopper mechanism, allowing for compact radial dimensions and separate assembly and integration of units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the lining plate of the torque limiter is disposed further radially outside the pair of side plates of the damper part, then the torque limiter can be assembled separately from the damper unit, but the radial dimension of the device increases
Solution Approach 1:
The friction plate of the torque limiter unit is disposed within the radial space of the damper part, specifically between the hub and the side plates. This nesting arrangement allows the torque limiter unit to be integrated into the radial structure of the damper part without increasing the overall radial dimension, while still enabling separate assembly through the fixation member that connects through the hub.
2Ease of manufacture
If the torque limiter unit and damper unit are assembled separately and then combined, then manufacturing flexibility is improved, but the structural integration becomes complex
Solution Approach 1:
The fixation member serves a dual function by simultaneously fixing the friction plate to the hub and connecting the torque limiter unit to the damper part through the hub. This merging of functions into a single component simplifies the structural integration while maintaining the benefit of separate assembly, as the fixation member integrates two units that are manufactured separately.
3Ease of manufacture
If the fixation member penetrates the cutout of the flange, then the torque limiter unit and damper unit can be combined after separate assembly, but the radial positioning becomes constrained
Solution Approach 1:
The cutout is pre-formed in the flange at a specific radial position, which guides the fixation member to a predetermined location during assembly. This preliminary structural feature ensures that the torque limiter unit is correctly positioned radially when the fixation member is inserted, enabling separate assembly while maintaining precise radial positioning without requiring additional adjustment during assembly.
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 configuration achieves compact radial dimensions and enables the torque limiter and damper units to be combined after separate assembly, improving manufacturing efficiency and integration while effectively limiting torque transmission.
Implementation Method 1
The elastic member elastically couples the first rotor and the second rotor in a rotational direction
Implementation Method 2
The torque limiter unit includes a friction plate having an annular shape. The friction plate is fixed at an inner peripheral part thereof to an outer peripheral part of either the first rotor or the second rotor
Data Source
AI summary
A torque limiter embedded damper device includes a torque limiter unit and a damper unit. The damper unit includes a first rotor, a second rotor, and a stopper mechanism. The second rotor includes a flange axially opposed to the first rotor. The stopper mechanism restricts an angle of relative rotation between the first rotor and the second rotor to a predetermined angular range. The stopper mechanism includes a cutout and a stop pin. The cutout is provided in the flange of the second rotor. The stop pin is fixed to the first rotor. The torque limiter unit includes a friction plate having an annular shape. The annular friction plate is fixed at an inner peripheral part thereof to an outer peripheral part of first rotor or the second rotor by a fixation member. The fixation member is fastened in a state of penetrating the cutout of the flange.