Cause analysis of unstable flow of bearing press

Cause analysis of unstable flow of bearing press

As we all know, on the bearing press fitting machine, it is necessary to install a throttle valve in advance to adjust the flow rate, but the flow instability will still occur after the throttle valve is adjusted. Generally speaking, the main reason for the flow instability is the blockage of the throttle port or the loosening of the locking device, the high oil temperature or the change of load pressure will mostly cause instability.

The oil of the bearing press fitting machine has not been filtered, and the impurities in it will accumulate and adhere on the pipe wall of the throttling channel, resulting in the reduction of the flow area, the speed of the actuator will also slow down, and the flow will be cut off after blocking. Once the impurities or dirt are washed away, it will also cause sudden jump.

When the pressure oil passes through the throttling gap, it will produce pressure loss, which makes the oil temperature of the intelligent press mounting machine rise locally, the oil oxidizes and deteriorates, precipitates colloid, carbon slag or asphalt and other sundries at the throttling port, adheres to the pipe wall of the throttling port, reduces the flow area, and even blocks the effective fluid road.

Due to the vibration of the bearing press fitting machine or other reasons, after the throttle valve is adjusted and locked, the locking bolt is loose, and the adjusting rod is also loose on the support sleeve, which changes the opening of the throttle valve and causes the change of flow.

The throttle valve core of the bearing press fitting machine adopts clearance sealing, which must have a certain amount of leakage. The matching clearance increases due to wear, and the leakage also increases, especially when the flow is small, which directly affects the stability of the flow.

The above is the relevant content of bearing press fitting machine. I hope it can be helpful to you.