Encoder Fixing Assembly with Universal Sealing Part
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Solution Overview
Problem
Existing solutions for attaching encoders to rotating electrical machines require different rear bearing support versions, increasing the complexity and number of parts for manufacturers and making after-sales encoder installations difficult.
Innovation Solution
A modular fixing assembly that allows encoders to be attached to rotating electrical machines without modifying the bearing support, using a sealing part with a central opening and a cover that houses the encoder's rotating part, ensuring compatibility for machines with or without encoders, and including a perforated mounting disc and screws for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different rear bearing support versions are used for machines with and without encoders, then the encoder can be securely attached, but the number of parts to manage increases and the difficulty of adding an encoder during after-sales increases
Solution Approach 1:
The bearing support is designed with a universal structure that can accommodate both encoder-equipped and non-encoder machines. A sealing piece with a central opening is provided, which can be mounted on the bearing support to create an encoder installation space when needed, eliminating the need for different bearing support versions.
Solution Approach 2:
The encoder attachment system is segmented into separate components: the bearing support, the sealing piece, the end piece, and the cover. The sealing piece can be removably mounted on the bearing support to create an encoder installation space when needed, allowing flexibility without changing the base bearing support structure.
2Adaptability or versatility
If the bearing support is modified to accommodate an encoder, then the encoder can be installed, but the machine cannot be easily customized or modified during after-sales
Solution Approach 1:
The system allows dynamic configuration where the sealing piece can be removably mounted on the bearing support to create an encoder installation space when needed. This enables machines to be customized at the latest stage, including during after-sales, without permanent modifications to the bearing support.
3Adaptability or versatility
If a seal piece is provided with a central opening for encoder passage, then the encoder can be installed without modifying the bearing support, but the sealing capability must be maintained
Solution Approach 1:
The sealing piece acts as an intermediary component between the bearing support and the encoder. It features a central opening that allows the encoder shaft to pass through while maintaining sealing capability through sealing lips that prevent lubricant leakage and contaminant ingress.
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to an assembly for fixing an encoder (40) to a rotating machine, comprising a shaft (11) and a rear bearing support (22) having an opening (24) in which a shaft end (14) is engaged, the assembly comprising an end piece (30) designed to fix to the shaft end and to rotate a rotating part of the encoder, and a sealing part (70) at least partially extending into the opening (24).