Robot Drive Belt Mounting Plate With Hooked Tensioning Feature
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Solution Overview
Problem
In articulated robots, proper belt tensioning is critical but often hindered by limited access to joint internals for tensioning adjustments, making it challenging to achieve and maintain optimal belt tension.
Innovation Solution
A mounting apparatus with a dedicated hook feature on its perimeter edge for engagement with a tensioning tool, allowing for sliding movement along a tensioning axis and preventing rotational misalignment, facilitates effective belt tensioning by guiding the tensioning tool into a hooked recess and maintaining tension through attachment hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dedicated hook feature is added to the mounting plate for tensioning tool engagement, then belt tensioning precision and ease of operation are improved, but device complexity increases
Solution Approach 1:
The mounting plate is segmented into functional zones: a dedicated hook feature for tensioning tool engagement, attachment slots for mounting, and a radiused contour section for tool guidance. This segmentation allows each feature to perform its specific function independently, improving tensioning operation while maintaining overall structural integrity.
Solution Approach 2:
The hook feature acts as an intermediary element between the tensioning tool and the mounting plate. It provides a dedicated engagement point that mediates the force transfer during tensioning, enabling precise control without requiring direct contact between the tool and the mounting plate body, thus improving ease of operation.
2Ease of operation
If attachment slots are provided for sliding movement during tensioning, then ease of operation is improved, but structural stability deteriorates
Solution Approach 1:
The mounting plate incorporates attachment slots that enable dynamic adjustment during the tensioning process. The slots allow the mounting plate to slide along the tensioning axis when the tensioning tool is engaged, facilitating easy tensioning operation. Once tensioning is complete, the attachment hardware can be tightened to lock the position, restoring structural stability.
3Measurement precision
If the hook feature is offset from the center line, then belt tensioning precision is improved, but rotational stability deteriorates
Solution Approach 1:
The hook feature is deliberately positioned offset from the center line of the mounting plate, creating an asymmetric configuration. This asymmetric placement allows the tensioning tool to engage at an optimal point that aligns with the belt tensioning direction, improving tensioning precision. The offset position creates a lever arm that enhances the mechanical advantage during tensioning operations.
Solution Approach 2:
The solution addresses the rotational stability issue by moving the constraint mechanism to a different dimension. Instead of relying solely on the hook position for rotational constraint, the attachment slots and attachment hardware provide rotational stability in a perpendicular dimension, allowing the offset hook to optimize tensioning alignment without compromising rotational stability.
Data Source
AI summary
A mounting apparatus incorporates a dedicated physical feature configured for attachment of a tensioning tool, for tensioning of a drive belt having one of its belt pulleys carried by the mounting apparatus. In an example embodiment, the mounting apparatus comprises a body member, e.g., a mounting plate, for a pulley assembly. The body member incorporates a dedicated physical feature that is configured for engagement with a tensioning tool, for pulling the body member in a tensioning direction relative to the involved belt. The mounting apparatus comprises, for an example, an interior component of a robot, and is mounted within an interior volume of a segment of the robot, for tensioning of a drive belt carried within the interior volume.