What to do if the screw is automatically loosened
Release time:
2021-11-12
Increase the friction resistance torque between the threads, appropriately increase the diameter of the thread under pressure, reduce the thread angle, and increase the self-locking ability. However, it should be noted that too large a diameter will cause the size of the mill to be too large. Increase the diameter d3 of the pressed threaded spherical pad and the diameter d4 of the opening, thereby increasing the friction torque. In addition, the appropriate selection of lubricants, regular lubrication of the components.
We in the use of rolling mill, often appear under the screw automatically unscrew phenomenon, thus affecting the roll gap opening and the accuracy of the rolled piece, resulting in uneven thickness of the rolled piece. A similar phenomenon is mainly due to the screw pitch is too large, the screw mosquito angle is greater than or close to the self-locking angle of the thread, so how to effectively solve the problem of automatic loosening of the rolling mill screw? Let's analyze together.
Increase the friction resistance torque between the threads, appropriately increase the diameter of the thread under pressure, reduce the thread angle, and increase the self-locking ability. However, it should be noted that too large a diameter will cause the size of the mill to be too large. Increase the diameter d3 of the pressed threaded spherical pad and the diameter d4 of the opening, thereby increasing the friction torque. In addition, the appropriate selection of lubricants, regular lubrication of the components.
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