The processing steps for drum gear couplings
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drum gear couplings,www.timothyholding.com |
What are the processing steps for drum gear couplings ?
Drum gear couplings are generally processed through turning and milling operations (CNC milling ensures higher precision). Keyways can be machined via wire cutting or broaching.
Processing Methods:
Typical manufacturing steps include turning, milling, gear hobbing, and gear shaping. The tooth surfaces undergo high-frequency quenching. For higher performance requirements, die forging is used to shape the coupling before machining. Some couplings are formed using cast steel or cast iron, followed by machining.
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drum gear couplings,www.timothyholding.com |
Technical Overview:
Drum gear couplings fall under the category of flexible-rigid couplings. They consist of internal gear rings and flanged half-couplings with external teeth. The external teeth are either straight or drum-shaped. Compared to straight-tooth couplings, drum-shaped teeth allow for greater angular displacement, improve tooth contact conditions, enhance torque transmission capacity, and extend service life.
Key Advantages:
1. High Load Capacity: The carburizing and quenching treatment of the drum-shaped tooth surfaces significantly increases load-bearing capacity.
2. Reduced Wear: When forced oil lubrication is applied, tooth surface wear decreases dramatically (to approximately 10% of that with grease lubrication). Circulating oil also dissipates heat generated by rolling mills and gear friction, preventing degradation of the material’s allowable contact stress.
3. Durability: Under normal conditions, tooth breakage is avoided, meeting the demands of continuous rolling mill operations.
4. Axial Flexibility: The design accommodates axial displacement during rolling mill operation, enabling easy expansion and contraction.
5. Operational Benefits: Safe, clean, and efficient performance.
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