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Failure analysis of hydraulic wrench in use.Air impact wrench company
source:Industry News release time:2022-09-05 Article author:yu Popular:Air band saw
Common faults of hydraulic torque wrench camshafts include abnormal wear, abnormal noise and fracture, and abnormal wear and tear often appear before abnormal noise and fracture occur. The following is a specific analysis:
1. The camshaft is located at the end of the lubrication system, so the lubrication condition is not optimistic. If the oil pump has insufficient oil supply pressure due to reasons such as long use time; or the lubricating oil channel is blocked, so that the lubricating oil cannot reach the camshaft; or the tightening torque of the bearing cap fastening bolts is too large, so that the lubricating oil cannot enter the camshaft gap, all of which are It will cause abnormal wear of the camshaft.
2. The abnormal wear of the camshaft will cause the gap between the camshaft and the bearing seat to increase, and the axial displacement will occur when the camshaft is active, resulting in abnormal noise. Abnormal wear will also cause the gap between the drive cam and the hydraulic lifter to increase, and the cam will collide with the hydraulic lifter when combined, resulting in abnormal noise.
3. The camshaft sometimes has major failures such as breakage. The common causes are hydraulic tappet breakage or major wear, serious poor lubrication, poor camshaft quality, and camshaft gear rupture.
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