The shaft end seal of the mixer of concrete mixing plant series adopts a combined seal type, which consists of multi-layer seals such as rubber seal and steel seal.

The quality of the seal affects the overall performance of the whole concrete mixing plant. Therefore, it is very important to choose a good seal.

The root cause of shaft end slurry leakage in the mixing machine is the damage of floating seal.

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Reason

Due to the damage of the seal and oil seal, the lubrication system does not supply enough oil, resulting in the wear and tear of the sliding hub and rotating hub; the bearing wear caused by the slurry leakage at the shaft end, and the friction with the mixing spindle results in the high temperature of the shaft end. The shaft end of the main machine is the part where the force is concentrated, and the service life of the parts will be greatly reduced under the action of high strength stress.

Therefore, it is necessary to replace the seal ring, oil seal and slide hub and hub in the shaft end sealing device in time; and the bearing on the side of the slurry leakage of the host shaft end, it is better to use the original sealing parts, so as to avoid different sizes and wear soon, which also hurts the mixing spindle.

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How to solve

Timely inspection of lubrication system

1. The lubrication system main oil pump rotation shaft has wear phenomenon

2. The plunger of the pressure gauge interface of the main oil pump of the lubrication system cannot work normally

3. The safety valve spool of the progressive oil distributor in the lubrication system is blocked and the oil distribution cannot be carried out.

Due to the above reasons caused by the shaft end centralized lubrication system failure, need to replace the lubrication system main oil pump.

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NFLG focus on road construction machinery technology enterprises, has been committed to researching the most concerned concrete mixing technology for customers.

In recent years, NFLG has launched fully automatic waste wet concrete recycling equipment, environmentally friendly mobile concrete mixing plant, concrete mixing building, precast mixing plant and so on, which lead the technical development of concrete mixing industry while meeting the needs of customers.

We look forward to your inquiry!

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