Mitre Gear Roller Drive Sealing and Segmentation
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Solution Overview
Problem
Existing roller hearth furnace systems do not allow for easy individual removal of rollers and fail to effectively seal against gas losses, leading to inefficiencies and potential damage from misalignment.
Innovation Solution
A driving apparatus with a mitre gear unit system that includes rotary coupling pieces for easy roller disassembly and adjustment, and a gastight mitre gear unit casing to manage sealing and alignment, allowing for precise orientation and stress-free coupling of rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a bearing beam module with multiple rollers is used, then the roller conveyor can be constructed, but individual rollers cannot be replaced
Solution Approach 1:
The bearing beam module is segmented into independent bearing beam units, each capable of supporting individual rollers. This segmentation allows individual rollers to be removed and replaced without affecting the entire bearing beam module, while maintaining the overall structural integrity and functionality of the roller conveyor system.
2Ease of manufacture
If the angle drive is located outside the casing, then assembly is simpler, but distortions occur during roller removal
Solution Approach 1:
The angle drive is pre-assembled within the casing in its final operational position. This preliminary assembly ensures that the angle drive maintains its precise orientation and cannot be distorted during roller removal or installation, as the casing protects the pre-positioned components from misalignment.
3Reliability
If sealing is performed at the passage opening, then gas losses are prevented, but thermal demands on sealing materials increase
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the passage opening and the external environment. This sealing ring is specifically designed to withstand the thermal conditions and creates a gastight seal that prevents gas losses while protecting the sealing function from excessive thermal demands on the overall system.
Data Source
AI summary
A driving apparatus for rollers of roller hearth furnaces includes a bearing beam module having a mounting plate for fixing to a side wall of the roller hearth furnace. The mounting plate has at least one passage opening for receiving a drive journal for driving one of the rollers. At least one mitre gear unit fixed to the mounting plate is provided and its angle drive is connected by the drive journal to the roller to be driven. At least one first and one second rotary coupling piece are accessible from the outsides of a casing of the mitre gear unit and are provided for connecting the angle drive to two further mitre gear units for driving in each case one adjacent roller.