Abstract
In the drives of the working bodies of ice breaking, road, construction and other technological machines the use of asymmetric planetary vibration exciters becomes promising. Where rotation carrier axis of the inertial runner is shifted relative to the treadmill center. Vibro-exciters of this type as a result of the joint action of the centrifugal and Coriolis forces on the inertial slider provide a significant increase in the integral value of the directional driving force. The momentum is proportional to the eccentricity of the carrier and directed towards the specified displacement of the carrier axis. The article presents the original mathematical and graphical dependencies characterizing the workflow of these vibration exciters and confirming their effectiveness.
Highlights
The use of vibration makes it possible to intensify many technological processes, improve the quality of work performed and create new technologies based on vibration effects
The use of planetary vibration exciters on ice breaking, road and construction machines provides an effect on the processed material of significant driving force and at the same time increases the reliability of vibration exciters due to the action of the driving force of the inertial runner directly on the housing treadmill, bypassing the drive shaft
The discrepancy between the theoretical and experimental dependences for the impulse of the specific driving force increases with increasing mass of the pendulum anti-skid device, and for the amplitude F directed towards the eccentricity of the carrier relative to the center of curvature of the treadmill the convergence is almost the same and the difference is 6-10 %
Summary
The use of vibration makes it possible to intensify many technological processes, improve the quality of work performed and create new technologies based on vibration effects. The use of planetary vibration exciters on ice breaking, road and construction machines provides an effect on the processed material of significant driving force and at the same time increases the reliability of vibration exciters due to the action of the driving force of the inertial runner directly on the housing treadmill, bypassing the drive shaft. The most effective in terms of driving force and polyfrequency effects on the material being processed is planetary vibration exciter with an offset center of carrier rotation (asymmetric planetary vibration exciter) [1,2,3,4], where the variable angular velocity of the inertial runner relative to the treadmill curvature center is provided by the eccentricity of the rotation axis of the carrier relative to this curvature center. Temirbekov [5,6,7], considered the working process of an exciter with a powered drove, which provides the simplest kinematics of an inertial slider drive and transmits to the drive shaft of an exciter in its pure form a moment of resistance to the displacement of the inertial slider along the treadmill [4]
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