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What are the strict requirements for assembling bevel gears

2024-05-15

The transmission efficiency of bevel gears is high, the transmission is very stable, the entire arc overlap coefficient is large, the bearing capacity is high, and the transmission is stable. It is very suitable for use on some mechanical equipment. In order to ensure the final machining accuracy, it is necessary to strictly follow the requirements during assembly.

Assembly requirements for bevel gears:

The manufacturer of spiral bevel gear introduces that the assembly of bevel gears involves two gears meshing with a contact spot of over 70% on the tooth surface. By adjusting the thickness of the gasket, the clearance between the two gears can be adjusted. The clearance should not be too large. If it is too large, the teeth of the gear will be damaged, and if it is too small, it will be stuck. After assembly, rotate the bevel gear by hand for one revolution, which happens to be neither loose nor tight. Be sure to rotate it for more than one revolution without getting stuck.

Assembly requirements of bevel gear: for the assembly of bevel gear, first adjust the center lines of two shafts to the same plane, first adjust the gear clearance, then adjust the displacement of the shaft base note, and check with a feeler gauge. Refer to the following table for allowable deviation. When the gears rotate and mesh, there should be no biting teeth or abnormal sounds.

During the coloring inspection of the contact surface of the bevel gear, the shaft should not be moved in series during rotation. In the absence of load, the contact surface should be 2 to 4mm close to the edge of the gear small head, leaning towards the small head side, with a contact area of 30% to 35% of the working area of the tooth, and in contact along the high and middle parts of the tooth; But due to the small displacement caused by load torsion.

The manufacturer of spiral bevel gear processing introduces that standard gear oil should be added to the gearbox in a timely manner. Generally, the oil level should be at one-third of the gear's immersion in the oil level, which is more suitable. Require that the gearbox be cleaned and the gear oil be replaced when maintaining the equipment at the end of each year's work; Butter should be added to each shift (12 hours of work) where butter is needed.


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