The common screw pump failure approach

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1, the pump excessive vibration or noise:

Cause: Pump installation is not strong or excessive pump installation; damage to the motor bearings; pump shaft bending or motor spindle hea rt, not parallel.ball bearing suppliers

Approach: install stable pumps or lower pump mounting height; replace motor bearings; correction bent pump shaft or adjust the relative position of the pump and motor.

2, the drive shaft or motor bearing overheated:

Reason: lack of lubrication or bearing broken.

Approach: filling oil or replacement. Valve inlet pump industrial washing machine.miniature bearing

3, No water pump:

Cause: pump and suction hose is not filled with water diversion; dynamic water level below the pump filter tube; suction pipe rupture.

The sealing surface between the screw and the housing is a space surfaces. On this surface there is such ab or de unsealed area, and the grooves of the screw part of the formation of the many gaps in the triangle ab c, def. These gaps in the triangle constituting the fluid channel, so that the the active screw grooves A and driven screw recess B and C connected to pass. While the groove B C along its own spiral wound to the back, and were connected to the D, E and groove on the back-pass. It belongs to the other end of spiral slot D, E, and the groove F () a dovetail sealing surface, there are also similar to the front triangular notch a b c , D, F, E will also be communicated. In this way, the groove ABCDEA also form a "∞" shaped sealing space (such as the use of a single thread, the groove along the axial drive screw Rao, the suction and discharge port through, unable to form a seal). It is easy to imagine, in such a screw, will form a number of independent "∞"-shaped sealed space, a sealed space is exactly equal to the axial length occupied tired rod lead t. Accordingly, in order that the screw can be sucked, the oil discharge port is separated, the l ength of the segment of the screw thread, at least greater than one lead.abec 7 bearings