PSI - Issue 50

S.Yu. Lebedev et al. / Procedia Structural Integrity 50 (2023) 155–162 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

160

6

Table. Parameters of the gear Parameter

Value

Module, mm

10,5

Number of teeth:

- pinion

12

- wheel

53

Reduced radius of curvature in the pitch point, mm

94,605

Teeth helix angle, deg

0

Material

- pinion

12ХН3А

- wheel

40Х

Surface hardening

- pinion

carbonization

- wheel

carbonization

Tooth surface hardness, HV

- pinion

600

- wheel

570

Core hardness, HV

- pinion

320

- wheel

300

Thickness of the hardened layer, mm

2

Effective thickness of the reinforced layer (as per GOST 21354-87), mm

1,007

2.5*10 5

Modulus of elasticity, MPa

Poisson ratio

0,3

Torque, kN*m

5

Wheel speed, rpm

15

Transmission service life, hour

12000

The calculation was performed for the torque sampling at the nominal value and the density function of the β distribution (a = 6, b = 2), which corresponds to the heavy operating mode of the gear mechanism, Syzrantseva (2009).