The Effect of the Parameters of a Gear-Link Mechanism on the Mean-To-Minimal Velocity Ratio

摘要

There is frequently a need in machines and automatic devices to have the working organ rotate at a nonuniform speed during a cycle. Problems of this type can be solved through the use of a variety of mechanisms, such as a differential mechanism with cam drive, a mechanism with noncircular gear wheels, etc. Most commonly encountered both in the Soviet Union and abroad because of the simplicity of its design is the gear-link (gear crank drive) mechanism. It should be particularly emphasized that such gear-link mechanisms might be more widely used for the acquisition of a nonuniform velocity if a reliable engineering method of synthesis were available. At the present time the mechanism is synthesized for a prescribed mean-to-minimal velocity ratio by what is essentially a selection method. The nature of the effect of each of these parameters on the mean-to-minimal velocity ratio is unknown. The awkwardness of this method is evident and often results in a reluctance to employ the gear-link mechanism. (Author)