Gear reducer is a kind of power to communicate, using the gear speed converter, the motor (motor) on the number of rotary rotary deceleration to want, and get a larger torque. Speed reducers are widely used in organizations currently used for transmission of power and motion.

Noise, whether it's the human body, the equipment, or the structure of the building can be extremely harmful. The advent of the low noise reduction machine will end all this. Noise can affect the person's sleep, make its physiology function be affected by certain effect, can let hearing decrease, affect other person's system.

General noise has little effect on the building, but when the noise level is over 140dB, the damage is done to light construction. When the supersonic plane swooped past, for example, in the head and tail will produce pressure and density of mutations, N form is formed after the ground reflection shock wave, sounds like explosion when to travel to the surface, this special noise called boom. Under the action of blasting sound, buildings will be affected by different degree of damage, such as doors and Windows damage, broken glass, wall crack, plaster fell, the phenomenon such as chimney collapsed. Since the sound attenuation is slower, the transmission is further and the scope is wider. In addition, using air hammers, piling or blasting near buildings can also cause damage to buildings.

Of equipment can cause the following the impact of the three conditions: 1. To distract equipment 2. Disable device (3) make the equipment damage in the modern society, people pay more and more attention to environmental protection, establish environmental friendly society by the government on the agenda. This is a kind of social form that is symbiotic with nature, and its core connotation is that human production and consumption activities and the natural ecological system coordinate sustainable development. Environmental friendly technologies, environment-friendly products, environment-friendly enterprises and environment-friendly industries are part of the environment-friendly society.

Gear reducer is a kind of power to communicate, using the gear speed converter, the motor (motor) on the number of rotary rotary deceleration to want, and get a larger torque. Speed reducers are widely used in organizations currently used for transmission of power and motion. Pollution and the noise of the reducer is also damage the environment one of the main factors that hinder the normal rest, study and work, low noise reduction mechanism should be our deceleration machine enterprise research and development of the subject.

The noise of the gear speed reducer stationarity of working precision, the movement of the contact accuracy of gears, gear precision and assembly precision and so on various aspects have very big impact, in order to reduce the noise reducer will know the causes of noise, the noise of speed is attributed to the gear mesh machine in the process of its operation produce periodic alternating force caused by the function of bearing, box body vibration.

Through the optimization of gear parameters such as coefficient of displacement coefficient, depth, pressure Angle, center distance, make the meshes to minimize the impact velocity, the recess action impact velocity and meshes into impact speed ratio in a certain scale, reduce or avoid meshing gear design method, with the impact of pitch circle was put forward after many years of research, suggests that can significantly reduce gear noise.

Lower gear reduction during the gear noise is one of the important research topics in the industry, many scholars at home and abroad with the change of tooth mesh stiffness in gear transmission gear as the main factors of dynamic load, vibration and noise. In order to reduce the noise, the method of fixing the load and the fluctuation of the velocity is minimized. This method proved to be a more effective method in practice. But in this way, the process needs to have the repair equipment, the general, small factory often cannot carry out.