How To Solve The High Temperature Of Cone Crusher Oil2020-03-23

How To Solve The High Temperature Of Cone Crusher Oil

Summary:Recently, the weather is getting warmer, and many friends are asking how to solve the problem of high oil temperature. When it comes to cone crusher, many frien

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Recently, the weather is getting warmer, and many friends are asking how to solve the problem of high oil temperature. When it comes to cone crusher, many friends are not unfamiliar and have encountered various problems. I believe that high oil temperature and fast temperature rise are one of the more common ones.

Normal oil temperature and alarm oil temperature:

General equipment manufacturers recommend that the temperature alarm set value is 60 ° C. Because each device uses different working conditions, its alarm value depends on the actual situation. In winter and summer, due to the large difference in ambient temperature, the alarm value should be adjusted accordingly. The setting method is: during the normal operation of the crusher, observe and record the oil return temperature for several consecutive days. Once the temperature is stable, the stability The temperature is increased by 6 ° C.

Cone crusher According to the site environment and operating conditions, the normal oil temperature should be maintained at 38-55 ° C, and the optimal working temperature state is in the range of 38-46 ° C. If the temperature is continuously high, it will cause the crusher Accidents such as broken shafts and other equipment.

In actual production, there are many reasons for the temperature rise of cone crusher lubricants, as follows:

1. The return pipe is blocked, resulting in a poor oil circulation, less oil return (normal return oil volume needs to reach more than half pipe volume), high oil temperature.

Check whether the return pipe is open, unblock the return pipe, eliminate the factors affecting the high oil temperature.

2. Check for the failure of the lubricant (normal lubricant life is 2000h for the operation of the equipment should be replaced), check the analysis of the oil Cu, Fe, moisture and dust content and viscosity index.

If the Cu and Fe content in the oil exceeds the standard, it indicates that there is abnormal wear inside the equipment;

If the water and dust in the oil exceed the standard, the cause of oil into the water should be found;

If the lubricant is dirty, failure, etc. , should be replaced in a timely manner.

3. Check the bowl-shaped tile surface and the main axis body contact, found that the spherical tile contact area is large, and the contact is not good.

Cause analysis: Due to the long service life of the spindle body, the outer edge of the sphere wear seriously, has been grinding to the lower sphere non-contact surface step, resulting in the body inner edge non-contact ball grinding and bowl-shaped tile contact, oil temperature increased.

Treatment:

4. Check the eccentric sleeve and spindle contact, found that the two contact is not good, and eccentric copper sleeve upper crack phenomenon, which is also one of the causes of the oil temperature rise.

Reason analysis: eccentric shaft due to the bad coordination with the push bearing, resulting in the eccentric shaft running trajectory changes, and then not good contact with the spindle.

Treatment measures: grinding the copper sleeve contact surface, and crack end drilling treatment at the crack, to avoid crack expansion.

Check the contact between the eccentric shaft and the rack copper sleeve, hang out the eccentric shaft, find that the rack copper sleeve contact surface contact is not good, there is burning tile phenomenon, and the upper edge of the rack sleeve has cracks, the alloy block of the pressure copper sleeve is loose, the eccentric shaft bottom face and the upper end of the push bearing side edge wear.

Cause analysis:

Treatment:

6. Check the oil pan and find that the end cover of the oil pan stops the wear of the push bearing flower key groove and is ground into a groove.

Reason analysis: oil bottom flower key groove grinding into a groove, stuck to the push bearing under the thrust plate, resulting in the underthrust plate stuck, tilt, and ultimately lead to the eccentric shaft tilt operation, eccentric shaft and sleeve contact is not good, heat, burning tile.

Treatment: Replace the oil pan and thrust plate to ensure smooth operation of the eccentric shaft.

7. Detect the motion-to-radial motion of the drive shaft and radial run-out.

Axial detection method: (1) remove coupling; (2) fixed percenttable monitoring at the end of the coupling; (3) the coupling end with a jack jack open, the pinion edge using steel brazing, measured the momentum value, the detection value is 3.8mm, greater than the standard value (standard 0.8-1.6mm);

Horizontal radial momentum detection method: make a percent watch on the coupling, and then use the jack to measure its radial momentum, the measurement is within the standard range.

Cause analysis: Axial momentum is large, resulting in a change in the gap between the top of the tooth.

Treatment: Adjust the adjustment ring or pad the shaft end of the coupling to ensure that its axial momentum meets the standard value.

8. Check the detection of the eccentric shaft and the horizontal shaft gear top, tooth side clearance.

If the gap does not meet the standard requirements, to add and reduce the pad adjustment, to ensure that the top of the tooth, the tooth side gap to meet the requirements.

9. Check the cooling system lines and gate valves. Check whether the lines are open, whether the gate valve is bad, blocked, etc., to ensure that the cooling system is normal, play a cooling role.

Cone crusher temperature will continue to be too high will damage the equipment important parts, can not function properly, seriously affect production, so users should pay attention to the problem according to the phenomenon of equipment failure, combined with the actual situation, item by item inspection, analysis, treatment, to ensure the normal and safe operation of the equipment.

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