Description of Serrated Connecting Ring
The sawtooth connection ring is an exceptionally engineered fastener, predominantly employed in mechanical chain connections. Its presence is widely noted in mining equipment like scraper conveyors, achieving a robust, high-strength locking and a stable connection through its ingeniously serrated structure. Below is a detailed description:
1, Basic Definition
The sawtooth connecting ring, also known as the saw tooth chain link or saw tooth ring, is a vital connecting element in mining circular chains. Primarily used for chain connections in scraper conveyors, transfer machines, and other equipment, its name is derived from its saw blade-like tooth design, which effectively transmits loads through the meshing of multiple equidistant serrations.
2, Structural Design
1. Tooth Profile Characteristics:
The serrated connecting ring is composed of two semi-circular rings, secured by elastic pins, and features sharp teeth with minimal spacing, forming a cohesive meshing surface akin to a saw blade.
Certain models have the versatility to be installed either horizontally or vertically, catering to the diverse directional requirements of chain connections.
2. Material and Craftsmanship:
Crafted from superior high-strength alloy steel such as 23MnNiMoCr54, this ring offers remarkable toughness and fatigue resistance. Its surface can undergo anti-corrosion treatments, making it ideal for tough underground environments.
3, Performance Characteristics
High Locking Force: The innovative serrated structure ensures an even load distribution, supporting a breaking load up to 1450kN, making it perfect for high-load scenarios.
Flexible Installation: With no directional restrictions, it effortlessly supports both horizontal and vertical connections, ensuring ease in assembly and disassembly.
Limitations: The fine tooth profile, while efficient, can lead to stress concentrations, posing risks of tooth breakage or detachment. Regular inspections and maintenance are imperative.
4, Application Scenarios
1. Mining Equipment:
This ring is essential for connecting mining circular chains in scraper conveyors and transfer machines, effectively transmitting traction forces and withstanding impact loads.
2. Industrial Equipment:
In coal plows and heavy-duty conveying machinery, it serves as an alternative to bolt connections, resolving issues like rust and complicated disassembly.
5, Precautions
1. Matching Requirements:
Ensure a precise match between sprocket and chain sizes to prevent installation errors that could cause wear or breakage.
2. Installation Specifications:
Before installation, clean the contact surface thoroughly to eliminate impurities that might disrupt engagement. Avoid inserting additional accessories between the connecting rings.
3. Maintenance Inspection:
Every 3 months or after handling 1 million tons of coal throughput, inspect for tooth wear and cracks, and promptly replace any damaged components.
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6, Compare and Improve Models
1. Comparison with Arc Gear Ring:
Serrated Ring: Features sharp tooth tips and formidable locking force, yet may experience stress concentration. The arc tooth ring, with its circular arc tooth surface, offers a larger contact area, extending fatigue life to over 50,000 cycles.
2. Comparison with Ladder Gear Ring:
Optimized ladder toothed rings feature trapezoidal teeth and rounded corners, reducing stress concentration and enhancing fracture strength.
In conclusion, the serrated connecting ring, with its exceptional locking power and versatile installation, stands as a crucial component in mining machinery chain connections. However, to endure high-impact scenarios, its design could benefit from enhancements like integrating arc or ladder toothed rings for increased reliability.
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