Compared with standard spur gears, helical gears have advantages of
A: Center distance can be adjusted by changing helix angle
B: Contact ratio is big with large load capacity
C: Transmission is more steady
D: Axial force exist
A: Center distance can be adjusted by changing helix angle
B: Contact ratio is big with large load capacity
C: Transmission is more steady
D: Axial force exist
举一反三
- Comparing with the spur gears, what are the advantages of helical gears? A: Helical gears operate more smoothly and silently. B: High contact ratio and heavier load capability. C: No thrust along gear axis. D: Less sensitive to undercutting
- When manufacturing involute standard spur gears with generating cutting method, the minimum teeth number to avoid undercutting is A: 15 B: 16 C: 17 D: 18
- Gear shaping machine can machine the worm gears
- In the following options，（ ）are standard parts. A: Commonly used thread fasteners B: Keys C: Gears D: Springs
- When manufacturing involute standard spur gears with generating cutting method, methods to avoid undercutting include A: Reduce the tooth height of the tool knife B: Increase the number of teeth of the machined gear C: Moves the cutter away from the gear under machining D: None of the above