Spiral Bevel Gear Used in Coal Mining Machinery
Spiral bevel gears play a crucial role in the coal mining industry, where equipment operates under heavy load, shock, and harsh environmental conditions. These gears are widely used in coal cutters, conveyors, crushers, and driving systems of underground mining machines, providing reliable power transmission and smooth motion.
Key Functions and Advantages
High Load Capacity – The spiral tooth design distributes contact across multiple teeth, allowing the gear to handle heavy torque typical in mining machinery.
Smooth and Quiet Operation – Compared to straight bevel gears, spiral bevel gears ensure smoother engagement and lower noise, which improves machine stability and lifespan.
Durability Under Harsh Conditions – Manufactured from alloy steels such as 20CrMnTi, 17CrNiMo6, or 8620, and treated with carburizing, quenching, and lapping, they can withstand dust, moisture, and high vibration environments.
High Transmission Efficiency – Provides stable and efficient power transfer between perpendicular shafts, which is vital for continuous coal mining operations.
Typical Applications
| Equipment | Function of Spiral Bevel Gear |
|---|---|
| Coal Cutting Machine | Transmits torque to the cutting drum for efficient coal excavation |
| Conveyor Drive System | Ensures stable operation of coal transport systems |
| Crusher | Transfers power to crushing elements for coal size reduction |
| Roadheader / Shearer | Connects motor to cutter head, enabling precise motion and load bearing |
Belon Gear Expertise
At Belon Gear, we specialize in custom manufacturing of spiral bevel gears for coal mining and heavy industrial machinery.
Our precision lapping and grinding process guarantees excellent contact pattern, minimal backlash, and long service life even under extreme conditions.
Design Advantages
| Design Feature | Advantage in Coal Machinery |
|---|---|
| Spiral Tooth Profile | Provides gradual tooth engagement, reducing impact and noise during heavy-duty operation. |
| Precision Grinding and Lapping | Achieves accurate tooth contact pattern, improves gear meshing, and enhances transmission efficiency. |
| Optimized Tooth Geometry | Custom-designed according to torque requirements and shaft angle, ensuring maximum load distribution. |
| Surface Hardening (Carburizing + Quenching) | Increases surface hardness while maintaining a tough core, extending lifespan under abrasive coal dust conditions. |
| Modular Design Compatibility | Allows flexible integration with gearboxes or drive assemblies used in different coal mining equipment. |
| Reverse Engineering Capability | Belon Gear can redesign and manufacture replacement bevel gears according to worn samples or drawings, ensuring compatibility with existing systems. |
Certified under GB/T19001-2016 / ISO9001:2015, Belon Gear ensures every gear meets strict quality standards, supporting reliable performance in demanding mining environments.
Post time: Nov-06-2025