Torque Damper Balance Weight Slot Layout for Precise Adjustment
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Solution Overview
Problem
Existing torque damper apparatuses face difficulties in adjusting balance weights to eliminate imbalance in rotary drive, as balance weights can only be attached to specific positions, limiting the flexibility and accuracy of the adjustment process.
Innovation Solution
The torque damper apparatus features annular flat plate side plates with long, circumferentially extending weight attachment holes at the outer edge, allowing for adjustable attachment positions and sizes of balance weights, enabling precise balance adjustment by positioning the weights between the holes and the outer peripheral end, thus enhancing inertia force with minimal weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If balance weights are attached to fixed-position holes in conventional torque damper apparatuses, then the structure is simple, but the balance adjustment precision is limited due to restricted attachment position options
Solution Approach 1:
The attachment hole is segmented into multiple functional zones along its length, allowing balance weights to be attached at different positions for fine-tuned balance adjustment. The hole extends from the outer peripheral end inward, creating discrete attachment points that enable precise control of the input-side plate's rotational balance.
Solution Approach 2:
The attachment hole structure transitions from a fixed, single-position design to a dynamic, multi-position design. The elongated hole allows the balance weight attachment position to be varied along the circumferential direction, enabling adaptive balance adjustment based on different operational requirements and imbalance conditions.
2Adaptability or versatility
If balance weights are attached at limited positions, then the attachment structure is simple, but the flexibility in weight selection and positioning is reduced
Solution Approach 1:
The elongated attachment hole serves multiple functions: it provides structural support, enables balance weight attachment at various positions, and allows for both light and heavy weight selections. This single structural feature replaces the need for multiple specialized attachment mechanisms, enhancing versatility while maintaining manufacturing simplicity.
Solution Approach 2:
The attachment hole's geometric parameter (length and position) is changed to enable multiple attachment positions. By extending the hole from the outer peripheral end inward along the circumferential direction, the design allows adjustment of the balance weight's radial position, thereby changing the moment of inertia to correct different types of imbalance.
3Force
If balance weights are positioned closer to the outer periphery, then the inertia force increases with minimal weight, but the attachment structure becomes more complex
Solution Approach 1:
The attachment hole extends in the circumferential direction (tangential dimension) rather than only radially inward. This allows balance weights to be positioned at the outer peripheral end where they generate maximum inertia force, while the elongated structure provides the necessary attachment complexity only in the tangential direction, maintaining radial compactness.
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 facilitates high-accuracy balance adjustment, allowing for a wide range of attachment positions and weight selections, effectively eliminating imbalance while reducing the overall weight and improving the stiffness of the attachment holes.
Implementation Method 1
an elastic transmission body which includes an elastic body and provided between the input-side plate and the center plate to transmit rotary drive force of the input-side plate to the center plate
Implementation Method 2
multiple weight attachment holes as through-holes for attaching a balance weight for adjusting balance of the input-side plate upon rotary drive
Data Source
AI summary
A torque damper apparatus includes an input-side plate having a pair of side plates and rotatably driven in response to drive force from a motor, a center plate coupled to an output shaft and arranged between the pair of side plates, and an elastic transmission body provided between the input-side plate and the center plate to transmit rotary drive force of the input-side plate to the center plate. The input-side plate has, at a plate surface of at least one side plate, multiple weight attachment holes for attaching a balance weight. Each weight attachment hole is formed in a long hole shape extending along a circumferential direction at an outer edge portion of the side plate.