How to Improve the Productivity of Jaw Crusher?

Nov.22, 2021
With the large-scale use of jaw crushers, more and more people are paying attention to the problem of the productivity of the jaw crusher. The following is an analysis of the productivity of the jaw crusher, and how to improve the productivity of the jaw crusher.
Research on the productivity of jaw crusher
The number of reciprocating swings of the jaw crusher is increased, and the productivity is increased accordingly. However, when the rotational speed exceeds a certain value, the swinging frequency of the moving jaw is too high, so that the broken material can not be completely discharged and the crushing chamber is easily blocked. Therefore, the jaw crusher has a critical transfer value. The theoretical critical speed value of the jaw crusher can be understood and calculated by the following assumptions. The angle of the teeth should have a certain range, and the small size can be determined by force analysis. The quality of the spherical material clamped in the crushing chamber is negligible because the generated gravity is much smaller than the crushing force of the material. The contact of the raft on the material is perpendicular to the raft in the contact with the material. When the swing is oscillating, the effective action-angle remains unchanged, that is, the movable moves away from the original position in parallel. After moving away from the fixed body, the broken material has a trapezoidal cross-section prism and is free to fall by gravity.
In order to ensure that the jaw crusher has high productivity, qualified products, low power consumption, and stable long-term operation, it is the correct operation and reasonable and timely maintenance. The maintenance work of the jaw crusher focuses on lubrication, tightening, adjustment and cleaning.

During the working process, the friction surfaces should be lubricated in a timely and reliable manner to ensure the long-term normal operation of the crusher. Therefore, special attention must be paid to the lubrication of each lubrication part. Otherwise, it will cause an accident, a very big accident. For the lubrication of the moving jaw bearing and thrust plate of the compound pendulum crusher and the support pad, it is generally lubricated with dry oil. In the winter, if there is a possibility that the dry oil will solidify, you can add 20% of the car oil to lubricate it. The lubrication of each contact surface must be comprehensive and uniform. However, the fullness of the lubricating oil in the rolling bearing housing should not exceed 50-70% of its volume. According to the operation and use, the oil can be filled once every 1-2 days, and the oil is changed every quarter. At the same time, the bearings are thoroughly cleaned and inspected. The practice has proved that it is possible to extend the service life of bearings and other parts by adding and replacing lubricants on schedule.

Lubrication of jaw crusher: The thin oil lubrication system we use is generally composed of the oil pump, filter cooler, oil pressure adjustment valve, fuel tank, oil pipe, instrument indicating device and so on. When the oil pressure is too high or the oil flow rate is too large, it can be adjusted by the oil pressure adjustment valve. In the normal lubrication process, the oil flow rate must be appropriate. The return oil temperature of the thin oil lubrication system should not be higher than 600 degrees, and the normal temperature in the fuel tank should be controlled at 35 to 50 °C. When the oil temperature is too high, water cooling measures should be taken, and the water pressure should be lower than the oil pressure of 0.5 atm. The filter should be cleaned when the pressure difference between the oil filter before and after the pressure exceeds 0.40 atmosphere. A lubricating oil should be replaced every 3-6 months under normal operating conditions, and thoroughly clean the fuel tank and other related lubricating parts and parts with kerosene to ensure the smooth and unobstructed lubrication system. For the parts that are manually lubricated at regular intervals, it is necessary to pay attention to timely, appropriate and accurate lubrication.

It is necessary to increase the productivity of the jaw crusher, but it is important to improve the service life of the jaw crusher. It is not possible to damage the machine itself to increase productivity.


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