Abstract
Based on the precessional bevel gears with a small shaft angle, a number of drives for oil and gas equipment have been developed. They are characterized by high efficiency (about 0.9) and a small starting torque. Due to multi-pair tooth meshing they have a higher load capacity as compared to other types of gears, which provides a safe drive operation in the Far North. Currently, the most studied gears are bevel gears with a small shaft angle with double-concave-convex teeth. However, the process of gear cutting for such gears is extremely complicated - the machine has to be reset four times. The cutting technology can be simplified by using gears with a non-generated gear and a generated pinion. The article provides calculations of the lines of action in meshing and the principal reduced curvature for a straight bevel gears with a small shaft angle with a non-generated gear and a generated pinion, geometrical characteristics necessary for determining the contact stress arising in tooth meshing and for developing methods of calculating the gear load capacity.
Highlights
Processes of bevel gear teeth formation [1, 2, 3, 4, 5, 6, 7, 8] are more complex compared to spur and worm spiroid [9] gears
The resulting dependences are the basis for the development of a methodology for calculating the load capacity of the straight bevel gear with a small shaft angle with a non-generated gear and a generated pinion
To simplify the process of cutting the teeth of pinion and gear, it is suggested that gears produced with a non-generated gear
Summary
Based on the precessional bevel gears with a small shaft angle, a number of drives for oil and gas equipment have been developed. They are characterized by high efficiency (about 0.9) and a small starting torque. The cutting technology can be simplified by using gears with a non-generated gear and a generated pinion. The article provides calculations of the lines of action in meshing and the principal reduced curvature for a straight bevel gears with a small shaft angle with a non-generated gear and a generated pinion, geometrical characteristics necessary for determining the contact stress arising in tooth meshing and for developing methods of calculating the gear load capacity
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