Description of Serrated Connecting Ring
The sawtooth connection ring is a highly specialized fastener engineered for the robust mechanical chain connections primarily found in demanding environments, such as mining equipment and scraper conveyors. Its ingenious serrated structure ensures high-strength locking and stable connections, essential for heavy-duty applications. Here is a comprehensive overview of its attributes:
1. Basic Definition
The sawtooth connecting ring, also known as the saw tooth chain link or ring, is a pivotal connecting element in mining circular chains. It plays a crucial role in linking chains for scraper conveyors, transfer machines, and other heavy machinery. Its name is derived from its distinct saw blade-like teeth, which adeptly transmit load through the precise meshing of multiple equally spaced serrations.
2. Structural Design
1. Tooth Profile Characteristics:
This innovative serrated connecting ring comprises dual semi-circular rings secured by elastic pins. The sharp teeth and minimal spacing create an interlocking surface akin to a saw blade, ensuring reliable operation.
Certain models offer flexibility with horizontal or vertical installation to accommodate various chain connection orientations.
2. Material and Craftsmanship:
Expertly crafted from high-strength alloy steel such as 23MnNiMoCr54, this component combines exceptional toughness with fatigue resistance. Its surface can undergo anti-corrosion treatment, making it ideal for harsh underground environments.
3. Performance Characteristics
High Locking Force: The serrated architecture delivers uniform load distribution, boasting a breaking load capacity of up to 1450 kN, making it perfect for high-load situations.
Flexible Installation: It eliminates the need for specific directional restrictions, accommodating both horizontal and vertical connections. The ring is designed for ease of assembly and disassembly.
Limitations: The compact tooth profile may lead to stress concentration, potentially causing tooth breakage or detachment, necessitating regular inspections and maintenance.
4. Application Scenarios
1. Mining Equipment:
The ring is utilized for connecting mining circular chains in scraper conveyors and transfer machinery, effectively transmitting traction force and enduring impact loads.
2. Industrial Equipment:
It replaces traditional bolt connections in coal plows and heavy-duty conveying machinery, effectively addressing issues of rust and difficult disassembly.
5. Precautions
1. Matching Requirements:
Ensure strict adherence to the sprocket and chain dimensions to prevent installation misalignments that might cause wear or failures.
2. Installation Specifications:
Prior to installation, meticulously clean the contact surfaces to eliminate impurities that may affect engagement; ensure no other accessories are inserted between connecting rings.
3. Maintenance Inspection:
Inspect for tooth wear and potential cracks every 3 months or after processing 1 million tons of coal. Replace any damaged components promptly to maintain performance.
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6. Compare and Improve Models
1. Comparison with Arc Gear Ring:
Serrated Ring: Features sharp tooth tips offering strong locking power but may experience stress concentration. The arc gear ring, with its circular arc tooth surface, boasts a larger contact area and significantly enhances fatigue life to over 50,000 cycles.
2. Comparison with Ladder Gear Ring:
The ladder toothed ring improves on serrations by incorporating trapezoidal teeth and curved corners, effectively reducing stress concentration and bolstering fracture strength.
In conclusion, the serrated connecting ring stands as a vital component in mining machinery chain connections, thanks to its formidable locking power and versatile installation options. However, for scenarios involving high impact, further design enhancements incorporating arc or ladder toothed rings are recommended to ensure superior reliability.
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