Xiangyu Li, Bo Peng, Bo Jiang, Ping Ruan. Tilt error correction of minitype theodolite’s vertical shaft based on angular contact ball bearings[J]. Infrared and Laser Engineering, 2021, 50(12): 20210172
- Infrared and Laser Engineering
- Vol. 50, Issue 12, 20210172 (2021)
Fig. 1. Vertical shaft based on angular contact ball bearings
Fig. 2. Gap design of vertical shaft
Fig. 3. Theoretical pressing force model of single nut bolt
Fig. 4. Pressing model of bearing outer ring
Fig. 5. Boundary conditions and nut bolts' pressing force
Fig. 6. Pressing force of bearing outer ring
轴承外圈压紧力
Fig. 7. Deformed cloud diagram of outer end ring
Fig. 8. Deformed cloud diagram of outer end ring (×10)
Fig. 9. Deformed cloud diagram of bearing outer ring I
Fig. 10. Design optimization flow
Fig. 11. Relation between
关系曲线图
Fig. 12. Relation between
关系曲线图
Fig. 13. Relation between
关系曲线图
Fig. 14. Initial state of rotation center axis
Fig. 15. State of shafting after instability
Fig. 16. Three contact conditions under ideal conditions
Fig. 17. Displacement monitoring of shaft with partial load
Fig. 18. Elimination of bearing clearance under Condition II
Fig. 19. Hoisting under partial load
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Table 1. Parameters of bearing
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Table 2. Material parameters of 2A12/T4
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Table 3. Material parameters of 45
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Table 4. Material parameters of GCr15
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Table 5. Displacement of monitoring points with different conditions （Unit: mm）
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Table 6. Biaxial perpendicularity error（Unit: (″)）
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