Gear pump vibration reasons

Gear pump vibration for the following two main reasons: First, the gear pump has a "trapped oil" phenomenon In gear meshing process, when a pair of gears meshing, and its pump inlet adjacent to a pair of teeth Between the two engagement points to form a closed space. As the gear continues to operate, the space is compressed and the medium (oil) pressure increases, allowing the gear to withstand large radial loads. As the pump continues to operate, the front pair of teeth disengages and this load suddenly disappears, creating a pulsating load that causes the pump to vibrate. Proceed as follows: Open the load cell wall in the pump to "trap oil" to the suction side; or in the driven gear to open the radial hole, leading to the shaft center hole, these media back to the suction side. Second, the bearing clearance is too large, can directly cause gear vibration processing methods: a comprehensive inspection of the shaft and bearings, and the existing problems to be dealt with accordingly.

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