Description of serrated connection ring
Sawtooth connection ring is a specialized fastener used for mechanical chain connection, commonly found in mining equipment, scraper conveyors, and other scenarios. It achieves high-strength locking and stable connection through a serrated structure. Here is its detailed description:
1, Basic Definition
Sawtooth connecting ring (also known as saw tooth chain link or saw tooth ring) is a connecting element of mining circular chain, mainly used for chain connection of scraper conveyor, transfer machine and other equipment. Its name comes from the tooth shape resembling a saw blade, which transmits load through the meshing of multiple equidistant serrations.
2, Structural Design
1. Tooth profile characteristics:
The serrated connecting ring consists of two semi-circular rings fixed by elastic pins, with sharp teeth and small spacing, forming a meshing surface similar to a saw blade.
Some models can be installed horizontally or vertically to meet the needs of chain connection in different directions.
2. Material and craftsmanship:
Made of high-strength alloy steel such as 23MnNiMoCr54, it combines toughness and fatigue resistance, and its surface can be treated with anti-corrosion to adapt to the underground environment.
3, Performance characteristics
High locking force: The serrated structure provides uniform load distribution, with a breaking load of up to 1450kN, suitable for high load scenarios.
Flexible installation: No specific directional restrictions required, compatible with horizontal or vertical connections, easy to disassemble and assemble.
Limitations: Small tooth profile can easily lead to stress concentration, which may result in tooth breakage or detachment, requiring regular inspection and maintenance.
4, Application scenarios
1. Mining equipment:
Used for connecting mining circular chains of scraper conveyors and transfer machines, transmitting traction force and bearing impact loads.
2. Industrial equipment:
Replace bolt connections in coal plows and heavy-duty conveying machinery to solve the problem of rust and disassembly.
5, Precautions
1. Matching requirements:
Strictly match the size of the sprocket and chain to avoid installation deviation that may cause wear or breakage.
2. Installation specifications:
Clean the contact surface before installation to ensure that there are no impurities affecting the engagement; Do not insert other accessories between the connecting rings.
3. Maintenance inspection:
Check the tooth wear and crack condition every 3 months or after completing 1 million tons of coal throughput, and replace damaged parts in a timely manner.
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6, Compare and improve models
1. Comparison with arc gear ring:
Serrated ring: sharp tooth tips, strong locking force but prone to stress concentration; The arc tooth ring is replaced with a circular arc tooth surface, which has a larger contact area and an increased fatigue life of over 50000 cycles.
2. Comparison with ladder gear ring:
The ladder toothed ring is optimized to have trapezoidal teeth and curved corners based on serrations, further reducing stress concentration and increasing fracture strength.
In summary, the serrated connecting ring, with its high locking force and flexible installation characteristics, has become the core component of mining machinery chain connections. However, in high impact scenarios, it needs to be improved in design by combining arc toothed rings or ladder toothed rings to enhance reliability.
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