tailieunhanh - Handbook Of Shaft Alignment Episode 3 Part 3

Tham khảo tài liệu 'handbook of shaft alignment episode 3 part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 630 Shaft Alignment Handbook Third Edition Step 4. Adjust the position of the target inside the bore of the cylinder by alternately loosening and tightening the target fixture adjustment screws at the12 and 6 o clock position to place the target half the total vertical offset distance measured in step 3 above. Adjust the position of the target inside the bore of the cylinder by alternately loosening and tightening the adjustment screws at the 3 and 9 o clock position to place the target half the total lateral offset distance measured in step 3 above as shown in the figure below. One-half of the original horizontal Position of target after moving FIGURE Step 4 for centering a target in a cylinder. 7. Using the optical micrometer measure the positions of the targets at the near and far ends of the far cylinder in the vertical and sideways directions. Study and perform the information in Figure . Record the information. Step 5. Adjust the vertical and lateral tangent screws on the jig transit to center the telescope crosshairs in the center of the bore target as shown in the figure below. Step 6. Repeat step 3 though step 5 until their target stays centered in the telescope crosshairs through 360 of rotation. Position of target after the target was moved horizontally and vertically inside the cylinder Initial position of target Observed position of target after adjusting vertical and lateral tangent screws on jig transit FIGURE Step 5 and step 6 for centering a target in a cylinder. Bore Alignment 631 Step 1 Use optical micrometer to measure the offset at Translation distance needed for correction . Near to far target distance near target to transit distance offset at near target Translation distance needed for correction --------------------------- ------------------------------ Near to far target distance Step 2 Translate the jig transit to here Step 3 - Rotate the jig transit to aim at the center of the far target then focus back to see if the near