Toothed Belt Axis Centering Interface for Carriage Alignment
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Solution Overview
Problem
Existing toothed belt axes face challenges in preventing misalignment in spatial directions transverse to the axis of movement, which can lead to the toothed belt running against the profiled body, pulley, or deflection roller, causing damage and tilting of the carriage.
Innovation Solution
The implementation of a carriage with a first carriage centering interface and a bearing housing with a corresponding first bearing housing centering interface, designed for translational and rotational alignment, ensures precise alignment of the bearing housing relative to the carriage, thereby preventing misalignment of the toothed belt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the bearing housing is fixed to the profiled body without direct centering interfaces, then the assembly is simpler, but misalignment occurs in spatial directions transverse to the axis of movement
Solution Approach 1:
The patent applies preliminary action by providing centering interfaces on the bearing housing that enable pre-alignment with the carriage before the toothed belt is installed. The centering element on the bearing housing engages with the centering interface on the carriage, establishing precise positional and rotational alignment in advance, which prevents misalignment during subsequent assembly steps.
2Productivity
If the toothed belt is installed without precise bearing housing alignment, then installation is faster, but the toothed belt runs against the profiled body or pulley causing damage
Solution Approach 1:
The centering interfaces are provided in advance on both the bearing housing and carriage, enabling the bearing housing to be precisely positioned relative to the carriage before the toothed belt is installed. This preliminary alignment ensures that when the toothed belt is subsequently installed, it runs correctly without contacting the profiled body or pulley, thereby preventing damage and ensuring reliability.
3Device complexity
If indirect alignment through the profiled body is used, then the number of direct connection points is reduced, but tolerance accumulation affects alignment accuracy
Solution Approach 1:
The patent segments the alignment function by providing dedicated centering interfaces separately on the bearing housing and carriage. Instead of relying on indirect alignment through the profiled body, the centering element on the bearing housing directly engages with the centering interface on the carriage, creating an independent alignment path that eliminates tolerance accumulation from the profiled body.
Data Source
AI summary
A toothed belt axis for providing a linear movement of a carriage, with a profiled body and a carriage mounted on the profiled body for linear movement along the axis of movement, with a toothed belt pulley and a deflection roller and with a toothed belt, which wraps around the toothed belt pulley and the deflection roller in certain areas and is connected to the carriage. The toothed belt pulley is rotatably received in a first bearing housing. The carriage has a first carriage centering interface and the first bearing housing has a first bearing housing centering interface, which are designed for a translational alignment of the first bearing housing relative to the carriage in a first spatial direction transverse to the axis of movement and for a rotational alignment of the first bearing housing relative to the carriage about the axis of movement.