Economic development has raised the performance requirements of (gear reducers), and noise has become an important control link. The level of noise control reflects the strength of enterprises. Constrained by environmental protection regulations, reducing noise has become a hot topic.
Measures for reducing noise:
project
Raw materials: The strength meets the requirements and non-metals, etc. can be used. Cast iron has the advantages and takes into account the strength. Low-carbon alloy steel in steel can reduce noise. Gears of different materials can mesh. Gear parameters: Increase the number of teeth, make the number of teeth of the large and small gears coprime, use small pressure angles and helical gears, improve the accuracy grade, and select the tooth side clearance. Tooth structure: Increase the tooth width, use web plates, and optimize the gearbox. Bearings: Choose reasonably. Fluid lubrication bearings are used for high-speed transmission.
The manufacturing and technology of the reducer
Gear modification: Chamfering reduces impact. Control errors and roughness: Focus on controlling errors such as tooth shape and roughness. Control dynamic imbalance of rotating parts: Less than 6.6 kg/(r/min). Control the center distance of the gearbox and the geometric tolerance of bearing holes.
Assembly and installation: Control concentricity. Selective assembly: Such as selecting gears processed by the same machine tool. Fasten components: Prevent loosening and tighten with the specified torque. Installation precautions: Anti-vibration of the foundation, cleaning and tightening bolts as specified.
Operation and maintenance
Reliable lubrication: Operate according to the manual. Control the temperature: The temperature rise is within 40℃.
conclusion
The noise problem of gear reducers is complex. Noise reduction is a systematic project, and all links need to be effectively controlled.