Furnace roller mandrel and carbon sleeve fixing device

Abstract

This invention relates to a furnace roller mandrel and carbon sleeve fixing device that uses fixing bolts and keyways to secure the furnace roller mandrel and carbon sleeve. The fixing bolts employ a leap-in thread design and use 2-2 double fixing bolts for locking. This furnace roller mandrel and carbon sleeve fixing device effectively reduces stress concentration and high-temperature deformation, thereby extending the service life of the carbon sleeve and reducing the occurrence of carbon sleeve breakage and furnace roller jamming.

Claims

1. A furnace roller mandrel and carbon sleeve fixing device, which uses fixing bolts and keyways to fix the furnace roller mandrel and carbon sleeve, characterized in that: a crown height is provided in the middle of the keyway, and V-shaped concave angles are provided on both sides of the crown height.

2. The furnace roller mandrel and carbon sleeve fixing device as described in claim 1, wherein, The system uses 2-2 double fixing bolts for locking.

3. The furnace roller mandrel and carbon sleeve fixing device as described in claim 1, wherein, The fixing bolts are made of SUS310.

4. The furnace roller mandrel and carbon sleeve fixing device as described in claim 1, wherein, The keyway is made of SUS310.

5. The furnace roller mandrel and carbon sleeve fixing device as described in claim 1, wherein, The fixing bolts adopt a leap-in thread design.

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