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Jaw Construction Waste Crusher

Maintenance Case Of Jaw Construction Waste Crusher Reducer

A blast furnace raw material conveyor drive speed reducer shaft (input side, oil leakage fault happens, in the maintenance of the replacement of the new oil after 1 months after the leakage, the reason for head wear, must replace the entire reducer. After two months, it is necessary to replace the low speed shaft of the Jaw Construction Waste Crusher (the output side, the oil leakage fault, the replacement of the oil seal on one side), and the whole reducer must be replaced. Therefore, it is necessary to find a method that can not only replace the whole reducer but also effectively avoid the oil seal leakage treatment.

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There Are Four Kinds Of Reasons For The Failure Of Mechanical Seal

 

  • 1. The quality of the mechanical seal itself is defective.
  • 2. The body of the reducer of the Jaw Construction Waste Crusher has defects.
  • 3. Improper selection of mechanical seal;
  • 4. Improper operation and maintenance.

Existing Problems

  • 1, if the performance of other parts of Jaw Construction Waste Crusher reducer is good, but there is only leakage failure, then the replacement of the whole Jaw Construction Waste Crusher will cause great cost and waste.
  • 2, now most of the Jaw Construction Waste Crusher reducer leakage failure is spindle wear, must replace the Jaw Construction Waste Crusher reducer, or when the equipment does not have long time downtime conditions, it must be processed within 40 minutes.
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  • 3, the torque of sealing face is too large (too large compression, poor lubricity, dry friction of seal face, erosion of seal face, adhesion of seal face;
  • 4, the sealing surface is twisted; the tightness on the cap bolt is not equal or too tight, the clamping stress is too large; the sealing surface is made uneven and straight; there are sundries between the sealing surfaces;
  • 5. The seal face is badly mastered when it is bruised and made or assembled; the sealing surface enters the particles. Mechanical or manual grinding to eliminate nicks or scratches.

Improvement Measures

  • 1, a oil seal is installed outside the original oil seal, and the oil seal is cut into two parts.
  • 2, make oil seal installation fixture;
  • 3, when installing, careful and careful operation;
  • 4, adjust the volume of compression;
  • 5. Increase the oil seal and reduce the sealing temperature.
  • 6. Improve the environment to prevent the bad lubrication of the friction pair caused by the excessive torque.
  • 7, carefully assembly, avoid seal bite, stuck;
  • 8, adjust the torque of the cap bolt to uniform and appropriate strength.
  • 9. Change the auxiliary seal structure and material.
  • 10, the sealing surface is reprocessed and straighten.
  • 11, improve the sealing environment and eliminate the particles in the fluid.

Effect Analysis

  • 1, reduce the safety and environmental problems caused by the leakage of lubricating oil;
  • 2, avoid replacing the whole Jaw Construction Waste Crusher reducer, saving the cost of maintenance and the repair cost of the Jaw Construction Waste Crusher reducer.
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