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What is the problem with the main lubrication system of the cone crusher?

Date:2019-11-13 09:26 Source:cementepcViews:

Cone crusher due to long-term operation, easy to appear bad lubrication device, it is often the case of the bearing bearing ablative, and even may lead to the bearing bearing cracks and loose bearing bearing.In daily production, what is the problem of the main lubrication system of the cone crushing machine?
 

1. High temperature of main lubricating oil

cone crusher

1.1 failure of safety valve


The safety valve is a pressure reducing valve with a certain pressure set in the lubrication system of the cone crusher, which has a protective effect on the lubrication system.If the safety valve fails or the set value drops, the lubricant will not pass through the cooler. At this time, check whether the safety valve is normal.
 

1.2 no action of cooling fan


The cooling fan is controlled by the sensor in the system. If the sensor fails or the fan motor burns out, the cooling fan will not move. Please check the sensor connector or replace it.
 

1.3 internal parts of the machine are burned out


When the cone crusher has iron, ore accumulation and other phenomena, it will lead to the internal parts of the crusher burning and holding, which will generate a lot of heat and make the main lubricating oil temperature rise rapidly, this situation needs to disassemble the parts of the cone crusher and replace.
 

1.4 no cooling fan action


The cooling fan is controlled by the sensor in the system. If the sensor fails or the fan motor burns out, the cooling fan will not move. Please check the sensor connector or replace it.

According to the site environment and operating conditions, the normal oil temperature should be maintained at 38-55℃, and the optimal operating temperature is within the range of 38-46℃. If the temperature is too high and the operation continues, to a certain extent, it will cause equipment accidents such as burning tile and breaking shaft of the crusher.

cone crusher

2. Low flow of main lubricating oil

 

2.1 filter element blockage


The clogging of the filter core will cause the flow rate in the system to drop and the pressure difference between the two sides of the filter core is high. Therefore, it is necessary to check the cone crusher regularly.
 

2.2 decrease of oil capacity of oil pump


Long time running will make the gear in the oil pump or mechanical seal wear, the oil pump capacity decreased, should be timely inspection and replacement.
 

2.3 filter clogging


At the inlet of the oil pump, there is a pipe joint with a filter screen. Large particles in the oil will stay on the filter screen.If the filter screen is not cleaned in time, there will be clogging of the cone crusher, reducing the amount of oil, reducing the amount of main oil, so it is necessary to clean up the sundries on the filter screen in the pipe joint regularly.

cone crusher

3. The cleanliness of main lubricating oil decreases

 

3.1 wear of outer dustproof sealing ring


The gap between the outer dustproof sealing ring and dustproof bucket is less than 1.9mm. If it is too large, a large amount of dust will enter the cone crusher. Therefore, it is necessary to check the gap between the outer dustproof sealing ring and dustproof bucket regularly.
 

3.2 insufficient positive air pressure


Insufficient positive air volume will reduce the positive pressure of the lubrication cavity, and dust is easy to be inhaled into the lubrication cavity, resulting in oil pollution and decreased cleanliness.
 

4. The lubrication


Over lubrication is the cone crusher in the process of work, filled with excessive lubricant, resulting in a bearing temperature rise, noise increase, so that the life of the bearing decreased a state of lubrication.In daily production, it is necessary to add lubricating oil in strict accordance with the required amount and type of lubricating oil required by the equipment.

In the use of a long time, cone crusher prone to poor lubrication, but also a lot of parts are easy to be lost, directly affect the production efficiency of the enterprise.Understanding the common faults and causes of main lubricating oil is beneficial to improve the ability to prevent faults and ensure the smooth progress of crushing production.

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