Page 130 - 《摩擦学学报》2021年第2期

第 2 期 尹兆明, 等: 基于热弹流润滑的双渐开线齿轮温度场研究 275

B: Steacly-state thermal B: Steacly-state thermal
Temperature Temperature
Type: temperature Type: temperature
Unit: ℃ Unit: ℃
Time: 1 Time: 1
2020/4/12 22:02 2020/4/12 22:03
88.474 Max 88.474 Max
87.124 87.124
85.773 85.773
84.423 84.423
83.073 83.073
81.722 81.722
80.372 80.372
79.021 79.021
77.671 77.671
76.321 Min 0.000 0.010 0.020 m 76.321 Min 0.000 0.010 0.020 m
(a) Bluk temperature of driving gear (b) Bluk temperature of driven gear

∗
∗
Fig. 8 Bluktemperature distribution of DIG ( l = y = 0.05)
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∗
图 8 双渐开线齿轮本体温度分布( l = y = 0.05)
1.2
1.030 0
1 0.901 2 1.0 Driven gear
Central oil layer
0.772 5 Driving gear
0 0.8
0.643 7
−1 Temperature rise/℃ 0.6
0.515 0
X
−2 0.386 2 0.4
0.257 5 0.2
−3
0.128 7
0.0
−4 0.000 0
0 1 2 3 4 5 −4 −3 −2 −1 0 1
h X
(a) 3-D temperature rise distribution (b) Central and two interfaces temperature rise

Fig. 9 Temperature rise distribution of meshing out grading position of DIG( l = y = 0.05)
∗
∗
∗
∗
图 9 双渐开线齿轮传动啮出分阶位置温升分布( l = y = 0.05)
160
154.0 140 Central oil layer
140 138.6 120 Driving gear
Temperature rise/K 100 92.40 DIG Temperature rise/℃ 100
123.2
Driven gear
120
107.8
77.00
80
80
61.60
60
46.20
60
40
15.40
20 40 50 30.80 40
0.000
0 20 30 20
2.5 2.0 Contact line position/mm
10
1.5 1.0 0
0.5 0 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Meshing cycle/(t/T c )
Meshing cycle/(t/T c )
(a) Temperature rise in central oil layer (b) Comparison of temperature rise between
central oil layer and two interfaces

∗
∗
Fig. 10 Instantaneous temperature rise distribution of DIG ( l = y = 0.05)
∗
∗
图 10 双渐开线齿轮瞬时温升分布( l = y = 0.05)
分布的变化趋势相同；中心油层温升与两齿轮界面温 3 齿腰分阶参数对双渐开线齿轮温度场影响
升变化趋势一致，啮入端与啮出端的温升较大，齿腰
齿腰分阶参数是双渐开线齿轮的重要特征参数.
分阶位置的温升较小，且啮入端界面温升明显高于啮 图11为齿腰分阶参数对主动轮啮合区域摩擦热流量
出端. 因为啮入端油膜厚度较小，相对滑动速度与摩 与齿面对流换热系数的影响. 由图11可知，随 l∗增大，
擦系数较大，产生的热量较多. 主动轮啮合区域的摩擦热流量与齿面对流换热系数