Open Access
Table 1
Calculated parameters of the designed worm gear drive.
| Parameters of the worm gear drive | Values |
|---|---|
| Diametral pitch | pd=5.08 mm |
| Normal diametral pitch | pdn=5.099 mm |
| Axial module | max=5 mm |
| Normal module | mn=4.98 mm |
| Worm lead of thread | px=15.7 mm |
| Circular pitch of the worm-wheel | t0=15.7 mm |
| Lead angle | γm=5° |
| Addendum coefficient | f'=1 |
| Fillet coefficient | r'=0.3 |
| Number of threads | z1=1 |
| Number of teeth of the worm-wheel | z2=30 |
| Direction of the wheel | right hand |
| Pitch diameter of the worm | d01=57.2 mm |
| Pitch diameter of the worm-wheel | d02=150 mm |
| Outside diameter of the worm | da1=67.2 mm |
| Outside diameter of the worm-wheel | da2=161.7 mm |
| Center distance | a=103.6 mm |
| Face width of the worm-wheel | b2=25.4 mm |
| Worm length | L=70 mm |
| Pressure angle | αax=20.1° |
| Normal pressure angle | αn=20° |
| Addendum of the worm | ha1=5 mm |
| Addendum of the worm-wheel | ha2=5 mm |
| Dedendum of the worm | hf1=5.8 mm |
| Dedendum of the worm-wheel | hf2=5.8 mm |
| Tooth thickness | Sax=7.9 mm |
| Fillet radius | r=1.5 mm |
| Transmission ratio | i=1/30 |
| Diameter ratio | q=12 |
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