The transmission efficiency of the trapezoidal screw is 2 to 4 times that of ordinary sliding. When it is used for transmission vertical mobility, do not be transmitted by the components after the transmission is interrupted. Its static and dynamic friction coefficients are actually no different. Because the friction between the screw and the roller nut is very small. If it is placed without pre -pressure vertical, the roller nut will fall off from the pole due to the weight. Therefore, pay attention to avoid avoiding it The institution is in a state of upright, so as not to let the roller nuts fall off due to the weight, and be careful when using it vertically.
Specific way to prevent reverse transmission:
1. Use the servo motor or step motor that cannot be driven against the transmission, but the turning torque of the motor needs to be greater than the inertia torque of the transmission part.
What are the specific methods to prevent trapezoidal screw inverse transmission?
Trapezoidal screw parameter, trapezoidal screw specification
2. Use electromagnetic or mechanical brakes, or one -way is larger than clutch.
3. Use a snail reducer that cannot be driven inverse transmission.
In order to strengthen the sensitivity, positioning accuracy, and not allowing them to crawl in the feed system, reduce the friction of the inlet feed system in the CNC machines and reduce the difference between static and dynamic friction coefficients. Therefore, a trapezoidal screw nut is commonly used in linear motion institutions with less long strokes. It is a new type of transmission device that is transformed in linear motion and rotation movements. It can reduce the reverse gap and apply pre -load.
The stroke of the screwdriver should be equipped with the itinerary protection device. If it is used greater than the itinerary, it may occur in the impact of rolling beads, damage to circulating parts, and indentation of the groove orbit, which will cause poor operation, decrease in accuracy, shorten life, and even damage.
