The gears that intersect with non-parallel shafts mainly include straight bevel gears, arc bevel gears, zero-degree bevel gears, etc. Here are its features and benefits:
Characteristic:
1.Transmission direction change: It can transfer motion and power between intersecting shafts, and can convert power from the rotation direction of one shaft to the rotation direction of another intersecting shaft, which is often used in mechanical structures that need to change the direction of power transmission.
2.Special tooth shape and force: The tooth shape is usually tapered, and the teeth are distributed on the conical surface. In the transmission process, the contact situation and force state of the gear teeth are more complex, both along the tooth width direction and the axial force that causes the shaft to produce axial force.
3.Fixed transmission ratio: as long as the number of teeth of the gear is determined, the transmission ratio is a fixed value, which can ensure a stable speed ratio between the two intersecting shafts and maintain a stable motion relationship of the mechanical system.
4.High transmission efficiency: under normal circumstances, the meshing of the intersecting shaft gear pair is basically rolling, and the relative sliding is very small, so the transmission efficiency is relatively high under normal assembly conditions.
Advantage:
1.Flexible space layout: It can adapt to the transmission needs of intersecting shafts in space, provide more possibilities for mechanical design, realize complex transmission requirements in limited space, and are widely used in aerospace, robotics and other fields with strict space requirements, which helps to reduce the volume of equipment and improve space utilization.
2.Strong bearing capacity: after reasonable design and manufacturing, it can withstand larger loads, and the spiral bevel gears can bear greater load and torque than the straight bevel gears, which are suitable for heavy-duty transmission occasions, such as the transmission system in mining machinery and construction machinery, which can ensure reliable transmission of power under harsh working conditions.
3.Good transmission stability: arc bevel gears and other non-parallel shaft intersecting gears, because the tooth line is a curve, gear tooth meshing is a gradual process of entering and exiting, compared with straight bevel gears, the transmission is more stable, vibration and noise are smaller, can improve the operation comfort and stability of the equipment, in automobiles, ships and other fields with high noise and vibration requirements.
4.Large transmission ratio can be realized: in some cases, through the reasonable selection of parameters such as the number of teeth and taper angle of the gear, a large transmission ratio can be achieved to meet the conversion needs of the mechanical system for speed and torque, and in some transmission devices that require large reduction ratios, the number of gear stages can be reduced and the transmission structure can be simplified.
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