BRECO timing belt timing belt applicati*** in several important issues
The BRECO PU timing belt timing belt combination of theory and practice, the belt drive applicati***, the following questi*** should pay attention to:
A pulley life and Profile Precision belt drive. Tooth profile shape change, more than life, with tooth and pulley tooth can not be properly engaged, it will cause the timing belt failure in the short term.
2, the material of the pulley, the tooth surface hardness h***e a major impact on the tran***ission quality. The pulley is the most common form of failure of tooth wear and pitting, with the tooth surface should h***e sufficient wear resistance and contact strength. Studies h***e shown that the general pulley material could be carbon steel or carbon alloy structural steel, for example, 45 #, 40Cr, 35SiMn such as normalizing or quenching and tempering treatment, the tooth surface hardness of 200 to 260 HB. High strength and surface hardness, good toughness, before they meet practical needs, moderate hardness, it can be fine in the heat treatment after cutting tooth profile.
Timing belt drive, in order to ***oid the timing belt from the pulley side of the slippage and pulley block plate, retaining plate should be 1-2 mm higher than the back of the band, and about 5 degrees inclination.
4, when the pulley speed is greater than the limit speed, dynamic balance, less than the limit speed, just for static equilibrium, after balanced detection, the residual unbalance of the pulley should not exceed the permissible value.
5, the pulley installation skewed, with side pressed on the retaining plate, resulting in wear increased with the side. Therefore, the installation is important to note the paralleli*** of the pulleys axis drive center plane of each pulley in the same plane.
6, with the load or preload is too large will cause the pitch, resulting in meshing interference with tooth wear, overload, carrying capacity is greatly diminished. Therefore, the timing belt applicati*** to prevent overload, and select the appropriate preload.
BRECO同步带PU同步带应用中的几个重要问题
BRECO同步带PU同步带结合理论分析及实践研究，同步带传动应用中以下几个问题应引起重视：