There will be some rupture in the use of roller screws. To prevent these conditions from happening, the cause of the occurrence must be understood. The following editors will introduce us to the rupture of the common roller screws and the cause of the rupture.
The purpose, introduction and usage requirements of ball screws 1
1. Steel beads rupture
The raw materials commonly used in steel beads are chromium molybdenum steel. Whether the roller screw is smooth or not, the temperature rise difference occurs during exercise. This temperature rise may form a steel ball rupture or damage, so it will cause damage to the nuts of nuts or screw beads. Therefore, it is necessary to consider the compensation of the light oil during the operation. If the automatic smoothing system cannot be used, it is necessary to include the compensation plan of the light oil in the maintenance manual.
Second, the backflow pipe is depressed or cracking
When the itinerary or reflux pipe is impacted, it will form the depression or cracking of the flow pipe, thereby preventing the cycle of steel balls. Make the steel balls sliding instead of rolling normally, and finally forms a reflux pipe cracking.
Third, the roller screw shoulder cracks
Incorrect operation: The scarf shoulder should prevent sharp corner operation. To reduce some stress concentration.
Walm of the screw shaft: The lack of straightness of the bearing of the bearing and the determination of the na V -shaft heart, or the lack of parallel parallelity of the fringe surface in the response direction, will cause twists or cracking of the screw shoulders.
Radial force or repetitive stress: The deviation formed when the device can form an abnormally alternative stress and damage the roller screw in advance.
