中国机械工程 ›› 2026, Vol. 37 ›› Issue (7): 1572-1579.DOI: 10.3969/j.issn.1004-132X.2026.07.005
• 机械基础工程 • 上一篇
娄明1(
), 杨训旺1, 郝开元1, 徐凯1, 于兴胜2, 沈海春3, 张国田2, 常可可1(
)
收稿日期:2025-06-22
出版日期:2026-07-25
发布日期:2026-08-18
通讯作者:
常可可
作者简介:娄明,男,1988年生,副研究员、硕士研究生导师。研究方向为钻探金属陶瓷复合材料。发表论文50余篇。E-mail: louming@nimte.ac.cn基金资助:
LOU Ming1(
), YANG Xunwang1, HAO Kaiyuan1, XU Kai1, YU Xingsheng2, SHEN Haichun3, ZHANG Guotian2, CHANG Keke1(
)
Received:2025-06-22
Online:2026-07-25
Published:2026-08-18
Contact:
CHANG Keke
摘要:
采用ANSYS仿真分析了深地钻具径向轴承在温度、载荷协同作用下的应力/应变分布状态。仿真结果表明,最大等效应力/应变出现在硬质合金/焊料界面(焊接界面)和硬质合金/硬质合金界面(摩擦界面)附近;温度显著提升应力/应变水平,300 ℃下的最大等效应力/应变较100 ℃下的最大等效应力/应变增大约2.5倍;轴承两端的摩擦应力高于中间区域,且更易发生黏着磨损。上述仿真结果与实地服役轴承的损伤分布特征高度吻合,可为径向轴承的优化设计提供理论参考。
中图分类号:
娄明, 杨训旺, 郝开元, 徐凯, 于兴胜, 沈海春, 张国田, 常可可. 温度与载荷协同作用下深地钻具径向轴承的表面损伤行为[J]. 中国机械工程, 2026, 37(7): 1572-1579.
LOU Ming, YANG Xunwang, HAO Kaiyuan, XU Kai, YU Xingsheng, SHEN Haichun, ZHANG Guotian, CHANG Keke. Surface Damage Behaviors of the Radial Bearings for Deep Drilling Tools under the Synergistic Effect of Temperature and Load[J]. China Mechanical Engineering, 2026, 37(7): 1572-1579.
| 序号 | 硬质材料和焊料区域的网格尺寸/mm | 基体区域的网格尺寸/mm | 网格 数量 | 最大等效应力/MPa |
|---|---|---|---|---|
| 1 | 1.0 | 10.0 | 537 233 | 382 |
| 2 | 1.5 | 10.0 | 339 793 | 380 |
| 3 | 2.0 | 10.0 | 294 712 | 383 |
| 4 | 2.0 | 8.0 | 337 581 | 385 |
| 5 | 2.5 | 10.0 | 258 271 | 387 |
| 6 | 3.0 | 10.0 | 248 091 | 391 |
表1 网格独立性验证
Tab.1 Validation of mesh independence
| 序号 | 硬质材料和焊料区域的网格尺寸/mm | 基体区域的网格尺寸/mm | 网格 数量 | 最大等效应力/MPa |
|---|---|---|---|---|
| 1 | 1.0 | 10.0 | 537 233 | 382 |
| 2 | 1.5 | 10.0 | 339 793 | 380 |
| 3 | 2.0 | 10.0 | 294 712 | 383 |
| 4 | 2.0 | 8.0 | 337 581 | 385 |
| 5 | 2.5 | 10.0 | 258 271 | 387 |
| 6 | 3.0 | 10.0 | 248 091 | 391 |
| 材料 | 密度 ρ/(kg∙m-3) | 热膨胀系数 α/K-1 | 热导率 K/(W∙m-1∙K-1) | 比热容 C/(J∙kg-1∙K-1) | 弹性模量 E/GPa | 泊松比ν | 硬度HV | 屈服强度 MPa |
|---|---|---|---|---|---|---|---|---|
| YG8合金片 | 14600 | 5.8×10-6 | 134 | 200 | 577 | 0.23 | 1270 | - |
| Ti(C,N)片 | 6400 | 9.4×10-6 | 17 | 466 | 484 | 0.19 | 1300 | - |
| AgCuZn焊料 | 9500 | 1.9×10-5 | 150 | 300 | 80 | 0.34 | 130 | 400 |
| CuNiZn焊料 | 8400 | 1.6×10-5 | 40 | 380 | 120 | 0.33 | 200 | 557 |
| 42CrMo基体 | 7850 | 1.2×10-5 | 40 | 460 | 210 | 0.28 | 260 | 550 |
表2 材料属性定义[10-16]
Tab.2 Definition of materials properties[10-16]
| 材料 | 密度 ρ/(kg∙m-3) | 热膨胀系数 α/K-1 | 热导率 K/(W∙m-1∙K-1) | 比热容 C/(J∙kg-1∙K-1) | 弹性模量 E/GPa | 泊松比ν | 硬度HV | 屈服强度 MPa |
|---|---|---|---|---|---|---|---|---|
| YG8合金片 | 14600 | 5.8×10-6 | 134 | 200 | 577 | 0.23 | 1270 | - |
| Ti(C,N)片 | 6400 | 9.4×10-6 | 17 | 466 | 484 | 0.19 | 1300 | - |
| AgCuZn焊料 | 9500 | 1.9×10-5 | 150 | 300 | 80 | 0.34 | 130 | 400 |
| CuNiZn焊料 | 8400 | 1.6×10-5 | 40 | 380 | 120 | 0.33 | 200 | 557 |
| 42CrMo基体 | 7850 | 1.2×10-5 | 40 | 460 | 210 | 0.28 | 260 | 550 |
图7 摩擦界面在温度100 ℃和动态轴承载荷0~10 kN下的仿真结果:
Fig.7 Simulation results of the sliding interfaces at a temperature of 100 ℃ and dynamic bearing loads of 0~10 kN
图8 深地钻具径向轴承动/静圈表界面损伤形貌分析
Fig.8 Morphological analyses on the damaged surfaces and interfaces of the moving ring and stationary ring of radial bearings dismantled from deep drilling tools
图10 摩擦界面在温度300 ℃和动态轴承载荷0~10 kN下的仿真结果
Fig.10 Simulation results of the sliding interfaces at a temperature of 300 ℃ and dynamic bearing loads of 0~10 kN
图11 不同材料组合在温度100 ℃和动态轴承载荷0~10 kN下的仿真结果
Fig.11 Simulation results of different materials combinations at a temperature of 100 ℃ and dynamic bearing loads of 0~10 kN
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