Design Method of Dual Phase Hy-Vo Silent Chain Transmission System

Abstract

Based on the theory that the Hy-Vo silent chain meshes with the sprocket, and the related condition that the Hy-Vo silent chain sprocket meshes with a tool, multi-variations of the Hy-Vo silent chain and sprocket are designed. The meshing design system of the dual phase Hy-Vo silent chain plate-sprocket-tool is built. The design method of the dual phase Hy-Vo silent chain transmission system is presented. Combined with a concrete example, the dual phase Hy-Vo silent chain transmission system model is established, and the dual phase transmission system is decomposed into two single-phase transmission systems. The research shows that the instantaneous transmission ratio of a dual phase transmission system may be different from the instantaneous transmission ratio of a decomposed single-phase transmission system. If the two pitches of the dual phase sprocket are equal and the two groups of pressure angles are the same, the largest fluctuation quantity of the dual phase transmission system is less in comparison with the single-phase transmission system, and the polygon effect is smaller. The design method will provide a corresponding theoretical guidance for the design of other multi-phase chain systems.

Meshing evaluation method for rocker-pin jointed silent chain transmission system based on the multi-factor coupling characteristic

“…In the chain research area, to exclude the influences of the manufacturing and assembly superposition error, the plastic deformation, and the abrasion, the best way to verify the system meshing characteristics is performing the multi-body dynamics experiment. 5,18,19 The multi-body dynamics model in the research is expressed in Figure 22, the frame is fixed in the ground, the holder of input shaft is relatively fixed to the frame, and the holder of output shaft can move in the x -axis direction of the frame. To eliminate the effect of the clearance between the chain plate hole and the rolling pins, the rolling pin is fixed in the chain plate.…”

“…Meng et al [15][16][17] according to the proper meshing conditions, proposed the concept of rotundity-datumaperture to analyze and design the rocker-pin jointed silent chain. Cheng et al [18][19][20] analyzed the meshing performance for the multi-phase transmission system of rocker-pin jointed silent chain, and proposed a dynamics way to analyze the system noise. Cali et al 21 based on the numerical analysis and experimental test, analyzed the silent chain drive by evaluating the meshing angles.…”

The Calculation of Meshing Efficiency of a New Type of Conical Involute Gear

“…In mechanical transmission, high mechanical efficiency can degrade heat generation, energy consumption, and air pollution [3] to [5]. Therefore, the friction loss is an important factor that should be taken into account during the design of gear transmission [6], chain system [7] and [8], and so on. The optimization of parameters and the utilization of high efficiency mechanical types are usually considered for heightening mechanical efficiency [3] and [5].…”

Design and Analysis of Double-side Meshing and Dual-phase Driving Timing Silent Chain System

“…In order to reduce engine vibration and noise, sprocket tension group is installed on the loose side, and idle gear group B is installed on the tight side. [15]. Supposing that A is the hole pitch of the link plate, f is the benchmark apothem between the circle centre O and link plate outside linear profile，2α is the tooth profile angle of the link plate, h is the distance between the centreline and the crotch of the link plate, r is the curvature radius of inner tooth profile, and O 1 (x 1 , y 1 ) is the central coordinate of it.…”