When maintaining crushers, adhering to the following general preventive measures is essential to ensure the long-term stable operation and optimal performance of the equipment.
When disassembling machined parts or bearing surfaces that may rust, regardless of how long these parts will be kept off the crusher, they should be covered with sufficient lubricating oil or rust inhibitor. This helps prevent rust and avoids failures due to corrosion. Especially in humid environments, regular checking and replenishing of rust inhibitors are crucial.
Special care should be taken when handling parts with tight tolerances or bearing surfaces to avoid damaging these precision surfaces. Using specialized tools and equipment can ensure that these surfaces remain undamaged, thereby guaranteeing accuracy and reliability during subsequent assembly.
When disassembling parts with machined surfaces or bearing surfaces, place wooden blocks on the ground to prevent these surfaces from coming into direct contact with the floor, avoiding scratches or damage. For heavier parts, it is advisable to use pads and support frames to ensure safety and stability.
When handling bronze bowl-shaped bearings and bushings, special care is required to avoid excessive striking or impact. These soft materials are prone to bending or bulging, which can lead to installation difficulties or poor equipment performance. Therefore, gentle handling techniques should be employed, and specialized tools should be used when necessary.
All machined parts must be thoroughly cleaned and lubricated before being installed in the crusher. It is particularly important that bearing surfaces are not dry at the time of installation, as this can lead to wear and possible failure. Use appropriate cleaning agents and methods to ensure thorough cleaning, avoiding any residues that could affect equipment performance.
When installing two parts that require a press fit or sliding fit, a thin layer of lubricating oil should be applied to the contact surfaces of both parts. This lubricant serves both as a lubricant and as a rust preventive. When pressing the spindle into the housing or the pinion into the drive shaft, it is recommended to use a mixture of white lead oil and lubricating oil for optimal lubrication. Ensure that the application is even, avoiding local over-application or under-application.
The spindle and housing bushings should be stored correctly to prevent deformation. Ensure they are placed in a dry, dust-free environment, avoiding heavy pressure and impacts to ensure accuracy and fit during installation.
Use a cloth soaked in molybdenum disulfide powder to wipe the threaded surfaces of the spindle and spindle bush, then apply grease or lubricating oil. If molybdenum disulfide powder is unavailable, applying sufficient grease will also suffice to ensure smooth and durable thread connections. Regularly check the tightness of thread connections to prevent failures due to loosening.
In addition to the above operations, regular maintenance and inspection are crucial for ensuring the normal operation of the crusher. It is recommended to develop a detailed maintenance plan that includes:
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