Influence of tension layer quality on mechanical properties of timing belts

Abstract

Reinforcement of the tooth belts is the element responsible for the transmission of the torque. Its structure is related to the dynamics of the belt and such important parameters as the stiffness of running stability on pulleys and above all, the pitch stability. The axis of symmetry of the reinforcement in the vertical direction of the belt is the reference point of the belt geometry as well as the neutral axis of stresses caused by bending. On the arc of the contact between belt and pulley, over the reinforcement, the belt is stretched, and below it is compressed. In the tooth belts, there are various solutions of the carrier layer, in terms of the materials used, but also types of fibers, quantity of the fibers, etc. The paper presents the results of analysis of the carrier layer of the most popular tooth belts with T10 and AT10 trapezoidal teeth. The paper shows possible direction of choice of the construction materials of the carrier layer and their importance for the dynamics of the gear with the tooth belt.

Problems of Removing Loos Biological Material from a Vacuum Accumulator

“…The size of the chamber of a single segment and the speed of displacement are subject to selection, thanks to which the variability can be obtained as shown in the drawing [14]. This variability is a component of the vacuum diagram in the crushing chamber and thus by adjusting the variability and the value of the vacuum, we can influence the grinding process in the crushing chamber [15,16]. The quality of process can by improve, when as a drive can by used gear with variable ratio [5,6,7].…”

Development trends in belt transmissions with V-belt

“…According to the paper [36,37] three main trendsof belt construction development can be distinguished: structural, material and manufacturing techniques concerning ones. The first of these trends comes down to the development of new geometrical features of belts and pulleys or to modifications of the existing ones [38][39][40][41][42][43]. This results in changing the cross-sectional area of the belt and limiting the part of the cross-section below the socalled neutral axis to the necessary minimum [44].…”

Selecting a Flat Belts for the Model of Coupling with Flat Belts

“…Unfortunately, the formula does not take into account the dynamic loads that may occur in the transmission, e.g. blockage of the drive system [11].…”