Why make polyurethane belt to be tightened
Polyurethane belt in the installation must be properly tightened to the polyurethane belt to have a certain initial tension. Initial tension is too small will cause the polyurethane belt in operation because of bad gear and jumping phenomenon. In the moment of jumping, the polyurethane belt may be broken or toothed rupture due to excessive pulling force. Initial pull is too small will cause the transfer of polyurethane belt to reduce the accuracy of polyurethane belt running noise becomes larger. The initial tension is too large will reduce the life of polyurethane belts, transmission noise increases, the load on the shaft and bearings increased, thus exacerbating the bearing heat, reducing the bearing life. Therefore, the control of polyurethane belt tension is to ensure the normal operation of polyurethane belt important conditions.
Tension calculation formula
The set of polyurethane belt transmission tension, the 1f, 2f, f, respectively, set the polyurethane belt transmission work tight edge pull. Send edge tension and effective pulling force. In order to ensure that the polyurethane belt in the pulley above the teeth reliable, do not jump tooth. Polyurethane belt running tight edge of the elastic elongation and elastic side of the loose belt should be kept approximately the same amount of contraction. Therefore, the increase of tension at the tight edge is equal to the decrease of the loose edge tension. Ie 1F-0F = 0F-2F or 1F + 2F = 20F, 0F = 0.5 (1F + 2F).