To ensure the efficient production of the sand making machine, we also need to pay attention to:
1. The sand making machine should be suspended regularly to extend its service life; shut down regularly to check the internal wear of the machine, especially the center feed pipe, cone cap, impeller upper and lower runner linings, circumferential guard plates, wear-resistant blocks, etc. For the degree of wear and tear of the wearing parts, timely replace or repair the parts with serious wear and tear. In particular, ensure that the wearing parts are replaced in time. At the same time, pay attention to the weight, model, and size of the replacement parts must be replaced according to the original part parameters.
2. As we all know, the shaft of the sand making equipment bears the full load of the negative machine. Regular lubrication directly affects the service life and operating speed of the equipment. Therefore, regular lubrication is required, and the injected lubricating oil must be clean, the seal must be good, and the instructions must be strictly followed. Standards for the use of lubricants. Appropriate amount of lubricant should be added when the sand making machine runs for 400 hours, and the bearings should be cleaned when running for 2000 hours. New bearings must be replaced after running for 7200 hours to ensure the normal operation of the equipment. The staff should also always pay attention to whether the various parts of the equipment are working normally. When the bearing oil temperature rises, there is a huge impact, etc., they should stop immediately to check the cause and eliminate it.
3. The sand making machine is a high-speed equipment, so during the equipment work, the staff should pay special attention to personal safety, stay away from the equipment, and must not open for observation to avoid dangerous accidents. If it needs to be repaired on the machine, it must be operated after the power is cut off.
4. In the event of a serious failure, it is recommended to ask professional maintenance personnel to repair it, and do not disassemble the core components without the permission of the manufacturer.
5. Maintenance of impeller.
The impeller is one of the important parts of the sand making machine, and it is also the most vulnerable part. Protecting the impeller and improving its stability can not only effectively improve the working efficiency of the sand making machine, but also extend the service life of the sand making machine.
The direction of rotation of the impeller device should be counterclockwise from the feed port, otherwise the motor wiring position must be adjusted; the feed should be uniform and continuous, and the size of the river pebbles should be strictly in accordance with the equipment regulations. Oversized river pebbles will cause the impeller to be damaged. Unbalance, wear the impeller; stop feeding when shutting down, otherwise it will cause the impeller to be crushed and cause damage to the impeller; it is also necessary to check the wear of the impeller device regularly, and replace the worn impeller in time to ensure the normal operation of production.
6. Maintenance of the rotor.
There are several effective methods to extend the life of the rotor bearing of the sand making machine:
Correctly choose the type of rotor bearing: Because the double row radial spherical roller bearing has the advantages of strong load-bearing capacity and good self-aligning performance, this type of bearing is often used as the rotor bearing.
Improve the balance accuracy of the rotor body: The rotor of the sand making machine is of large mass and high speed, and the casting deviation of the rotor body and the mass deviation caused by the installation of the hammer will cause unbalanced centrifugal force when the rotor rotates. This centrifugal force causes the machine to generate forced vibrations, causing damage to bearings and other mechanical parts. Therefore, the rotor of the crusher must undergo a balance test.
Choose a reasonable matching relationship: the rotor bearing of the sand making machine is mainly subjected to the impact load when it is working. The load on the rolling element is different. The rolling element under the line of the impact load is the most stressed, the inner and outer rings The raceway also receives the greatest force when it is in contact with the rolling elements here. It is recommended to use F8 or E8 for the cooperation between the outer ring and the bearing seat.
Improve the bearing force: the impact load acting on the bearing depends on the support flexibility of the impulse bearing seat acting on the rotor. Increasing the support flexibility of the bearing seat will reduce the impact load acting on the bearing. For this reason, we add a rubber plate of appropriate thickness between the bearing seat and the support frame to improve the support flexibility of the bearing seat. Due to the addition of the rubber plate, the support flexibility is increased, which absorbs a part of the vibration energy, improves the force condition of the bearing, and achieves the purpose of extending the service life.
At present, the price of sand and gravel is so high, improving the efficiency of the sand making machine will help increase corporate profits!