Motor-Sensor Assembly for Drop-Impact Stable Colorimeter Drives
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Solution Overview
Problem
Existing drive devices and colorimeter devices lack effective drop impact tolerance structures, leading to potential misalignment and failure when subjected to impact.
Innovation Solution
The integration of a drive motor, a slit disk with multiple slits, and a sensor unit with a holding member that vibrates synchronously with the motor, along with a belt regulating section and detachment restriction section, to prevent misalignment and ensure the timing belt remains in place during impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive motor, slit disk, and sensor are mounted separately on the device, then the device structure is simpler and easier to manufacture, but misalignment occurs between components during drop impact
Solution Approach 1:
The patent combines the drive motor, slit disk, and sensor into a single integrated assembly that is mounted together on the device. This merging of components ensures they move as one unit during drop impact, preventing misalignment while maintaining a relatively simple overall structure.
2Reliability
If the timing belt is stretched loosely between pulleys, then the device is easier to assemble, but the timing belt shifts position during drop impact causing tooth skipping
Solution Approach 1:
The patent applies tensioning means to pre-tension the timing belt before the device is put into service. This preliminary action ensures the timing belt is properly secured and will not shift position during drop impact, preventing tooth skipping while maintaining ease of assembly.
3Reliability
If the bearing is freely inserted into the frame, then the assembly process is faster and simpler, but the bearing detaches from the frame during drop impact
Solution Approach 1:
The patent incorporates retaining means that are pre-configured in the frame to retain the bearing during assembly. This preliminary preparation ensures the bearing remains securely in place during drop impact while maintaining a fast and simple assembly process.
Data Source
AI summary
A drive device includes a drive motor including a rotation shaft, a sensor unit including a slit disk in which is formed a plurality of slits and a sensor that detects the slits, and a holding member, wherein the slit disk is attached to the rotation shaft and the drive motor and the sensor are attached to the holding member.