Publish Time: 2023-03-17 Origin: Site
Applications
The bevel gear has many diverse applications such as locomotives,marine applications, automobiles, printing presses, cooling towers, power plants, steel plants, railway track inspection machines, etc.
For examples, see the following articles on:
Bevel gears are used in differential drives, which transmit power to two axles rotating at different speeds, such as those on a car turning.
The bevel gear is used as the main mechanism of the hand drill.When the handle of the drill bit is turned in the vertical direction, the bevel gear changes the rotation of the chuck into a horizontal rotation.Bevel gears in hand drills have the added benefit of increasing the rotational speed of the chuck, which makes drilling a wide variety of materials possible.
Spiral bevel gears are an important component of rotorcraft drive systems.These components need to operate at high speeds, high loads and numerous load cycles. In this application, a spiral bevel gear is used to redirect the shaft from a horizontal gas turbine engine to a vertical rotor. Bevel gears are also used as reducers.
Advantages
This gear can change the working angle.
A different number of teeth (effective diameter) on each wheel allows varying mechanical advantages.By increasing or decreasing the gear ratio between the driving and driven wheels, the rotational ratio between the two can be changed, which means that the rotational drive and torque of the second wheel can be changed relative to the first, with speed and torque decrease in increase, or decrease in speed and increase in torque.
Disadvantages
One wheel of such gear is designed to work with its complementary wheel and no other.
Must be precisely mounted.
The shafts' bearings must be capable of supporting significant forces.
Crown gear
A crown gear (also known as a face gear or face gear) is a gear whose teeth protrude at right angles to the wheel face.In particular, a crown gear is a bevel gear with a pitch angle of 90 degrees.Pitch cones of any other angle are simply called bevel gears. [3] Crown gears usually mesh with other bevel gears or sometimes with spur gears, typical use is a crown and pinion system that allows rotational motion to move 90 degrees.
Spiral bevel gear
Spiral bevel gears are bevel gears with helical teeth.Its main application is in vehicle differentials, where the driving direction of the drive shaft must be rotated 90 degrees to drive the wheels.The helical design produces less vibration and noise than conventional spur or spur gears.Spiral bevel gear sets should always be replaced in pairs, i.e. the left and right gears should be replaced together because the gears are manufactured and ground in pairs.
Handedness
A right-handed spiral bevel gear is a gear whose outer tooth half slopes clockwise from the axial plane through the midpoint of the tooth when an observer looks at the face of the gear.A left-handed spiral bevel gear is a gear whose outer tooth halves slope counterclockwise from the axial plane through the midpoint of the tooth when an observer views the face of the gear.Note that spiral bevel gears and pinions always have opposite directions of rotation, including in the case of internal gears.Note also that the right-hand and left-hand designations apply equally to other types of bevel, hypoid, and helical gears.