In today's society, people pay more and more attention to environmental protection, and the establishment of an environment-friendly society has been put on the agenda of the government. This is a social form in which people and nature live in harmony, and its core connotation is the coordinated and sustainable development of human production and consumption activities and natural ecosystems. Environmentally friendly technologies, environmentally friendly products, environmentally friendly companies, and environmentally friendly industries are all part of an environmentally friendly society.
The reducer is a power transmission mechanism that uses a gear speed converter to decelerate the number of revolutions of the motor (motor) to the required number of revolutions and obtain a mechanism with a large torque. Among the mechanisms currently used to transmit power and motion, BBM reducers are used in a wide range of applications. The noise pollution of the reducer is also a major factor that damages the environment, which will hinder people from rest, study and work. The low-noise deceleration mechanism should be the subject of research and development by our deceleration machine enterprises.
Reducing the gear transmission noise during the operation of the BBM reducer is an important research topic in the industry. Many scholars at home and abroad regard the change of gear tooth stiffness in gear transmission as the main factor of gear dynamic load, vibration and noise. Use the shape modification method to minimize the dynamic load and speed fluctuations to achieve the purpose of reducing noise. This method has proved to be a more effective method in practice. However, with this method, there is a need for a trimming device in the process, and large and medium-sized factories are often unable to implement it.
The noise of the BBM reducer has a great influence on the smoothness of the work, the contact accuracy of the gear, the motion accuracy of the gear, and the assembly accuracy. To reduce the noise of the reducer, it is necessary to know the cause of the noise. The noise is caused by the vibration caused by the action of the periodic alternating force on the bearing and the casing during the operation of the internal gears.
After years of research, it is proposed to optimize the gear parameters, such as the displacement coefficient, the tooth height coefficient, the pressure angle and the center distance, to minimize the impact velocity, and the ratio of the impact velocity to the impact velocity is at a certain value. The range, the gear design method that reduces or avoids the impact of the pitch circle, can also significantly reduce the gear noise.