Gearbox use and noise handling
use
1. Acceleration and deceleration, which is often referred to as a transmission gearbox.
2. Change the transmission direction, for example, we can use two sector gears to transmit the force vertically to another rotating shaft.
3. Change the rotating torque. Under the same power condition, the faster the gear rotates, the smaller the torque on the shaft, and vice versa.
4. Clutch function: We can separate the engine from the load by separating the two originally meshed gears, such as brake clutch, etc.
5. Distribute power. For example, we can use one engine to drive multiple slave shafts through the gearbox main shaft, so as to realize the function of one engine driving multiple loads.
Noise processing
The gear box is an important part widely used in mechanical transmission. When a pair of gears are meshed, due to the inevitable errors in tooth pitch and tooth shape, during the operation, there will be meshing impact and noise corresponding to the gear meshing frequency will occur , Friction noise also occurs due to relative sliding between the tooth surfaces. Since gears are the basic parts in gearbox transmission, reducing gear noise is necessary to control gearbox noise. In general, the reasons for the noise of the gear system mainly include the following aspects:
1. Gear design. Improper parameter selection, too small coincidence, improper or no modification of tooth profile, unreasonable gearbox structure, etc. In gear processing, the errors of the base section and the tooth profile are too large, the tooth gap is too large, and the surface roughness is too large.
2. The gear train and gear box. The assembly is eccentric, the contact accuracy is low, the parallelism of the shaft is poor, the rigidity of the shaft, bearing and support is insufficient, the rotation accuracy of the bearing is not high and the clearance is inappropriate.
3. Input torque in other areas. Fluctuation of load torque, torsional vibration of shafting, balance of motor and other transmission pairs, etc.
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