- GB50403-2007炼钢机械设备工程安装验收规范（英文版）
- 中国冶金建设协会
- 276字
- 2021-03-29 04:31:50
5.5 Tilting Device
Ⅰ Dominant Items
5.5.1 The trunnion and the gear must be assembled according to the following requirement:
1 The mesh of gear hole and trunnion shall meet the requirement of the design technical document.
2 In case the gear hole and trunnion are cylindrical，the gear's end face shall be tightly contacted with the trunnion shaft's shoulder with the local clearance of not larger than 0.05mm.
3 In case the gear hole and trunnion are cone，the axial positioning ring shall be tightly contact with the end face of the gear and that of the trunnion's groove with the local clearance of not larger than 0.05mm.
Quantity to be checked:100%.
Inspection method:Check with a micrometer，a feeler gauge and the coloring method.
4 The contact area between two inclined planes of every pair of tangential keys as well as that between the working face of key and that of keyway shall be larger than 70%.The interference fit between the tangential key and the keyway shall comply with the requirement of the design technical document.
Quantity to be checked:100%.
Inspection method:Check with a feeler gauge，a micrometer and the coloring method.
Ⅱ General Items
5.5.2 The allowable deviation for installation of tilting device shall comply with the requirements in Table 5.5.2（see Figure 5.5.2）.
Quantity to be checked:100%.
Inspection method:See Table 5.5.2.
Table 5.5.2 Allowable deviation for installation of tilting device
Figure 5.5.2 Schematic drawing for installation of torsion bar mechanism for fully-hung tilting device
1-bearing pedestal for torsion bar；2-torsion bar；3-tilting reducer；
4-bearing pedestal at fixed end；5-trunnion；6-retaining support