How to Solve the Noise Problem of Harmonic Reducer?

With the development and demand of the industry, the requirements for the noise control of the harmonic gearhead are getting higher and higher. There are many factors that affect the noise of the harmonic gearhead, such as the tooth profile design of the internal and external gears, the gear machining accuracy, the assembly accuracy, the use, maintenance and installation of the reducer.

1. Tooth profile design of the internal and external meshing gears of the harmonic gearhead

The noise of the harmonic gearhead is mainly caused by the friction, vibration and collision of the transmission gear. In the design, the meshing speed and meshing effect are reduced by optimizing parameters such as the modulus, tooth height, modulus, pressure angle, and center distance of the gears.

Design methods that reduce or avoid gear mesh effects can reduce the noise of gear reducers.

2. Harmonic reducer gear machining accuracy

The hardened tooth surfaces obtained by carburizing, nitriding and carbonitriding processes deform the gears, increase the noise of gear transmission, and shorten the service life of the gears.

In order to reduce the noise of the harmonic gearhead, the tooth surface needs to be repaired; the tooth grinding and modification methods are used to reduce the influence of the gear inlet and outlet.

3. Assembly accuracy of harmonic gearhead

(1) The harmonic gearhead assembly is not concentric, resulting in an unbalanced drive shaft, half loose and half tight meshing of the internal gears, and noise.

(2) The internal gear assembly of the harmonic gearhead has a small clearance and slightly louder noise.

(3) If there is too much oil and grease in the harmonic gearhead, the noise will be slightly louder.

4. Use and maintenance of harmonic gearhead

(1) Different installations of harmonic gearheads and equipment will cause noise.

(2) Harmonic reducer bearing; internal noise;

(3) The internal harmonic reduction gear wears out, and the gear clearance is too large, resulting in noise.

According to the actual situation of the site, the cause of the noise of the harmonic gearhead is analyzed in detail.

Compared with the spur gear reducer, the helical cylindrical gear reducer has a higher degree of coincidence. The tooth profiles of the two wheels start to contact from a point, and the contact line changes from short to long, then shortens until point contact, and then disengages. Like the spur gear transmission, it suddenly contacts and suddenly disengages along the entire tooth width, but gradually enters and gradually disengages, so that the impact is small, the noise is small, and the transmission is stable.

Relying on our company's many years of research and development experience, our high-precision harmonic gearhead has the characteristics of low temperature rise, small starting torque, high reliability, large torque, long life, large speed ratio, small size, etc., and can be widely used in Industrial robots, service robots, medical equipment, high-precision automation equipment, etc. We sincerely provide satisfactory and diversified custom design services to all valued customers. Welcome to consult.