Hammer crusher is a kind of equipment that makes the materials entering the cavity destroyed and crushed in the form of impact, squeezing and grinding. It is composed of cavity, rotor, impact liner, sieve plate and other parts. The main working mechanism of the hammer crusher: the motor pulls the rotor to rotate the hammer head at high speed in the crushing cavity, and the materials in the cavity are crushed by the impact, squeezing and grinding of the hammer head moving at high speed. Through the sieve plate in the lower part of the rotor, the particle size of the powder material with a particle size smaller than the sieve hole size leaks through the sieve plate hole, and the particle size larger than the sieve hole size remains on the sieve plate and continues to be supported on the left and right side walls of the cabinet On the rolling bearing and bearing support, there are positioning pins on each bearing support to fix the center distance of the bearing to prevent the bearing from moving.

       As we all know, the hammer crusher is an important part of the production process. During the production process, it is forced to shut down for maintenance due to its failure accidents, which results in the subsequent process technical indicators cannot be achieved smoothly and continuously, that is, the output and quality of the product are limited. So, how should we strengthen the daily maintenance and repair of the hammer crusher? The senior editor of Chongqing Longjian Industrial Group simply shares with you:

       1. Preparation before starting

       1. Check the control equipment before the process of the hammer crusher-whether the products of the jaw crusher meet the process design indicators of the jaw crusher, and then check whether the production process parameters of the jaw crusher are artificially and blindly changed;

       2. Check the tightness of the triangle belt connecting the motor and the hammer crusher pulley, whether the balance wheel and its protective cover are safe and reliable, and whether the enclosure is intact;

       3. Check the gap between the hammer head, lining plate and sieve plate, whether it needs to be replaced (guaranteed to be 4 mm ~ 7 mm), and whether there is material in the body;

       4. Before each start-up, the hammer crusher should be tested for dry running to determine the balance of the rotor, the bearing and the bearing seat. The basis for the judgment is whether the rotor is running smoothly or periodically vibrating and rotating. If abnormal conditions are found, the machine is immediately shut down and the shell is adjusted.

       Second, the requirements for booting

       1. The hammer hammer breaker can only be started under the condition that there is no material in the machine body;

       2. After the normal operation of the belt conveyor, no load is required to break the hammer for a few minutes without abnormal conditions, and then the material after the jaw is broken can be evenly added.

       3. Use in production

       1. Strictly control the start-up time, adjust the unit output of the hammer crusher to balance the output of each shift;

       2. When the equipment is working, it is strictly forbidden to let metal objects enter the cavity of the hammer crusher. If there is abnormal noise or severe vibration when the equipment is working, emergency shutdown should be taken;

       3. Check the tightness of the bearing support and fixing bolts every shift;

       4. Check once every 2 hours, the motor temperature should not exceed 60 ℃; the bearing temperature does not exceed 30 ℃, if there is noise, abnormal noise, and the bearing temperature rises quickly, it should be stopped and checked in time;

       5. Check the working condition of the iron remover above the belt before feeding, check whether the electrical components are damaged, whether the connecting wires and fasteners are loose, whether the control cabinet of the iron remover is dusted; the working condition of the jaw crusher, such as through the belt Whether the amount of material entering the crusher is uniform, and whether the maximum particle size of the material after the jaw is broken meets the feed requirements of the crusher's process design; whether the working conditions of the plate feeder are within the allowable range of equipment process parameters;

       6. Whether the material on the discharge belt of the hammer crusher is uniform is the standard for judging whether the outlet of the crusher is smooth. Once the discharge port is blocked, the crushed materials are not discharged smoothly, and the materials are accumulated in the crushing chamber. The resistance when the rotor rotates gradually increases, causing the forces in the crushing chamber due to mutual friction cannot be released in time, and the body will overheat. , Causing damage to the device.

       4. Management after the end of production

       1. Shut down the feed of the belt conveyor of the hammer crusher first, and then shut down the hammer crusher after the materials in the crushing chamber are completely discharged;

       2. Remove scrap iron from the iron remover above the feeding belt conveyor of the hammer crusher;

       3. Clean the accumulated material on and off the machine, and wipe the equipment. During the wiping process, check whether the body bolts and anchor bolts are loose, tighten the loose

bolt;

       4. Lubrication equipment to ensure that the grease added to the bearing chamber is 50% to 70% of its volume. Lithium molybdenum disulfide is injected once every 15 days in spring and winter, and once every 7 days in summer and autumn;

       5. All inspections and maintenance must be truthfully filled in the equipment inspection registration form, detailing the name and location of the parts, especially the replacement quantity, quality, time of the hammer head, and the bearing temperature value, as a record for analysis and accident analysis in accordance with.

       In summary, Chongqing Longjian Industrial Group reminds you: in the daily use and maintenance of hammer crushers, the number of equipment inspections should be strengthened, the quality of equipment maintenance should be improved, and the maintenance workers ’awareness and responsibility for equipment should be strengthened. By improving the management level of the equipment and avoiding the equipment running with hidden safety hazards, the consciousness of "hidden hazards are accidents" is formed in the minds of enterprise employees.