Abstract
Abstract Spiroid gear is one of the progressive varieties of intersecting axis gears. It has a number of advantages: increased overlap coefficient, favourable contact conditions. Spiroid gears are notable for high loading and overloading ability, increased smooth running and less sensitivity to manufacturing and assembly errors, high reliability and durability. The analysis of the results of experiment on research of vibration of the spiroid gear PS-124 has shown, that the vibration level at frequency 200-300 Hz is reduced on 5 dB at increase of the resistance moment up to 1000 Nm at clockwise rotation of the reducer and at increase of the resistance moment up to 800 Nm at counterclockwise rotation of the reducer. The vibration level at frequency 700-800 Hz is also increased on 5 dB at increase of the resistance moment up to 1000 Nm at clockwise rotation of the reducer and at increase of the resistance moment up to 800 Nm. If these vibration levels are exceeded, a defect is likely to occur. Economic efficiency of application of diagnostics systems is caused by increase of reliability and quality, reduction of accidents, decrease in defects, reduction of idle time of expensive equipment, reduction of expenses for maintenance and repair.
Highlights
Spiroid gear is one of the progressive varieties of intersecting axis gears
Due to a number of advantages of geometry and kinematics of meshing – increased overlap coefficient, favourable contact conditions – spiroid gears are characterized by high load and overload capacity, increased smooth running and less sensitivity to manufacturing and assembly errors, high reliability and durability [1]
Spiroid gears are notable for high loading and overloading ability, increased smooth running and less sensitivity to manufacturing and assembly errors, high reliability and durability
Summary
Spiroid gear is one of the progressive varieties of intersecting axis gears. Due to a number of advantages of geometry and kinematics of meshing – increased overlap coefficient, favourable contact conditions – spiroid gears are characterized by high load and overload capacity, increased smooth running and less sensitivity to manufacturing and assembly errors, high reliability and durability [1]. Vibration signal modulations occur in the gearbox, as gearboxes mainly operate under harsh operating conditions [17] Their major components such as gears and bearings are subject to damage such as fatigue cracking, pitting, corrosion, and wear and tear [18]. Even a small failure can lead to a disaster, so condition monitoring and diagnostic systems must be installed for gearboxes to detect the appearance of defects in time to avoid accidents, repairs and replacement of equipment. The vibration response obtained from analytical model and experiments can be further analyzed by using different techniques available such as statistical and signal processing in the spectrum and its diagnostic performance is tested for comparative fault detection [20]. The informative components of the gearbox vibration spectrum, consisting of gearbox speed, gearing frequency and their harmonics, are affected by faults.
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