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Reducer design procedure
First, the original data and data of the design 1, the type, specification, speed, power (or torque), starting characteristics, short-term overload capacity, moment of inertia, etc. of the prime mover. 2. Type, specification, use, speed, power (or torque) of the working machine. Working system: constant load or variable load, load map of variable load; start, brake and short-time overload torque, starting frequency; impact and vibration degree; rotation direction. 3. The connection mode of the prime mover and the reducer, whether the shaft has radial force and axial force. 4. Installation type (relative position of the reducer and prime mover, working machine, vertical and horizontal). 5. Transmission ratio and its allowable error. 6, the size and weight requirements. 7. Requirements for service life, safety and reliability. 8. Environmental conditions such as ambient temperature, dust concentration, airflow speed and pH; lubrication and cooling conditions (whether there is circulating water, lubrication station) and restrictions on vibration and noise. 9. Requirements for operation and control. 10. Materials, blanks, standard parts and stocks. 11. Manufacturing capacity of the manufacturing plant. 12. Requirements for batch, cost and price. 13. Delivery deadline. The first four items mentioned above are necessary conditions, and other aspects can be designed according to the conventional design. For example, the design life is generally "year. When used in important occasions, the reliability should be higher. 2. The type and installation type of the selected reducer are three. Determine the performance level of each process and parameters, the material of the initial gear and main parts, heat treatment process, finishing method, lubrication method and lubricating oil. 4. Determine the number of transmission stages according to the total transmission ratio, determine the transmission The number of stages and the transmission ratio of each level. 5. Initially determined geometric parameters, the gear center distance (or pitch diameter), modulus and other geometric parameters. VI. Overall design determines the structure of the reducer, the size of the shaft, Skip and bearing model, etc. 7. Check the strength of the load parts such as gears, shafts, keys, etc., and calculate the bearing life. 8. Lubrication and cooling calculation 9. Determine the attachment of the reducer 10. Determine the carburizing depth of the gear. It is necessary to calculate the process data such as the tooth shape and the tooth shape modification. XI. Drawing the construction drawing should implement the relevant national and industry standards in the design.