Reasons for softening and detachment of Rubber V Belts during use

Analyze the reasons for the softening of the triangular belt to help everyone avoid these problems in future use.

1. Triangle softening

Cause analysis: contaminated by lubricating oil, grease, and chemicals. Protect the transmission from pollution sources. Before installing a new belt, clean the pulley groove with gasoline or alcohol.

2. Belt flipping

Cause analysis: The belt is severely worn, and the belt and pulley can be replaced; If the pulley is not up or down correctly, it can be re aligned.

3. Fan belt vibration

Cause analysis: Severe belt damage or belt breakage. Can be replaced with a new belt; If the belt tension is too tight or too loose, adjust the distance between the center of the pulley and the belt tightness.

What are the hazards of a gap in the triangular belt rim?

If there is a gap or deformation on the wheel flange of the triangular tape, it will cause scraping on the triangular tape, causing significant wear and tear, thus having a significant impact on the operation of the machine and reducing the service life of the machine and the triangular tape.

Its working condition is also relatively poor, which can cause corresponding trouble during use. Sometimes, unexpected accidents may even occur, threatening our life stability. Therefore, once any damage is found, it should be replaced immediately.

Which of the following methods can be used in V-belt transmission?

1. It differs from a transmission method in that the driving and driven wheels exchange positions, and the direction of rotation of the driving wheel is still counterclockwise. According to the same principle, it can be concluded that the frictional force acting on the belt by the driving wheel is counterclockwise, while the frictional force acting on the belt by the driven wheel is clockwise. The characteristic of this transmission method is that the belt above the wheel is in a relaxed state, while the belt below the wheel is in a tensioned state. Therefore, the angle of the belt surrounding the pulley is greater than π.

2. The driving pulley rotates counterclockwise. Since the belt is required not to slip during transmission, the friction between the belt and the pulley is Stiction. The direction of Stiction is opposite to the direction of the V-belt relative to the pulley. The "relative motion trend direction" at this time is the direction of motion of the belt relative to the pulley, assuming there is no friction between the belt and the pulley.

Now it is known that the driving pulley rotates counterclockwise, so the relative movement trend direction of the belt relative to the belt pulley is clockwise, so it can be concluded that the direction of the Stiction acting on the belt by the driving pulley is counterclockwise. Under the action of Stiction, the belt rotates counterclockwise. For the driven pulley on the right side, the Stiction acting on the belt is clockwise. Under the action of Stiction of two pulleys, the belt above the pulley is tensioned and the belt below the pulley is relaxed, so the wrap angle of the belt around each pulley is less than π.

Reasons and solutions for easy detachment of triangular belts during use

1. The uneven guide wheel of the Datong step belt causes downward force on the synchronous belt; Solution: Adjust the level of the synchronous belt guide wheel;

2. Insufficient tension of the tensioning spring on the tensioning wheel; Solution: It is necessary to adjust/replace the tension spring;

3. The synchronous belt is too long and the length of the two leather synchronous belts is different; Solution: Choose a leather synchronous belt with an appropriate length and two synchronous belts with the same specifications;

4. The rubber v belt becomes longer during long-term operation; Solution: After prolonged operation, cut and reconnect the synchronous belt;

During transportation and storage, triangular belts should be kept clean and protected from direct sunlight or rain or snow, to prevent contact with acids, alkalis, oils, solvents, and other substances. At the same time, they should be kept away from hot objects. The warehouse temperature should not be too high during storage and should be maintained between 18-40 ℃. During storage, the rubber v belt must be placed in rolls and should be flipped once a quarter during storage.