What is the content of pre-service training for employees of motor motor rotor automatic air blades machine?
Motor motor rotor automatic fan blade machine staff pre-service training content usually covers the following important aspects:
1, the basic principles of equipment and structure awareness
l working principle explanation: detailed description of the motor motor will be converted into mechanical energy process, including the principle of electromagnetic induction in the operation of the motor role in the mechanism. Explain how the rotor is rotated by the force in the magnetic field, and how this rotary motion drives the wind blades to rotate through the transmission components, thus generating airflow to realize the heat dissipation or ventilation function. For example, take the common three-phase asynchronous motor as an example, explain in depth the principle that the stator winding generates a rotating magnetic field, the rotor conductor cuts the magnetic lines of force to generate induced electromotive force and current, and then rotates by force in the magnetic field, so that the staff can have a clear understanding of the source of the power of the equipment and the basis of its operation.
l Mechanical structure dissection: lead the staff to recognize the main mechanical parts of the equipment, such as the stator, rotor, bearing and end cover of the motor, the shape, material and installation method of the wind blades, as well as the transmission structure connecting the motor and the wind blades (e.g., couplings, pulleys and belts, etc.). Introduce the function of each component, the assembly relationship between each other and the role played in the overall operation of the equipment. Through physical display, disassembled models or equipment schematic diagrams, employees can visualize the internal structure of the equipment so that they can accurately identify and understand the operation status of each component and possible points of failure in subsequent work.
2、Operation process and standardization
l Preparation before start-up: train employees on a series of inspection and preparation steps that need to be carried out before starting the equipment. This includes checking whether the power supply of the equipment is normal, whether the voltage is stable, whether the bolts of each connection part are tight, whether the transmission parts are flexible and free of stagnation, whether the wind blades are entangled with foreign objects or damaged, and whether the heat dissipation channel of the motor is smooth, etc. It is emphasized that these checks are important to ensure the stability of the equipment. Emphasize the importance of these checks to ensure the stable startup and operation of the equipment, so that employees develop rigorous operating habits to avoid equipment failure caused by negligence.
l Starting and stopping operation steps: In accordance with the operating procedures of the equipment, explain in detail the correct starting and stopping methods. When starting, you should first close the power switch and observe the starting process of the equipment, such as whether the rotation direction of the motor is correct, whether the start of the wind blade is smooth, and whether there is any abnormal vibration or noise. If abnormalities are found, startup should be stopped immediately and troubleshooting should be carried out. When stopping the equipment, the load should be gradually reduced first, and then the power switch of the equipment and related ancillary equipment (e.g., cooling system, control system, etc.) should be turned off in accordance with the prescribed order. Through practical demonstration and letting employees practice operation personally, ensure that they are proficient in the process of starting and stopping the equipment and can operate the equipment correctly under various circumstances.
l Monitoring points during operation: Inform employees of the parameters and indicators they need to pay attention to during the operation of the equipment, such as the current, voltage and temperature of the motor, the rotational speed and air volume of the air blades, as well as the overall vibration of the equipment. Train employees how to use relevant monitoring instruments (such as ammeters, voltmeters, temperature sensors, tachometers, vibration meters, etc.) to monitor these parameters in real time and set reasonable alarm thresholds. Once a parameter exceeds the normal range or triggers an alarm, employees should be able to quickly determine the general type and severity of the fault and take appropriate emergency measures, such as adjusting equipment operating parameters, shutting down for inspection or reporting for repair. At the same time, it is emphasized that employees should maintain a high degree of responsibility and concentration during the monitoring process, and record the operating data of the equipment on a regular basis, so as to provide a basis for the maintenance and fault diagnosis of the equipment.
3. Precautions and emergency treatment
l The use of protective equipment: introduce the protective equipment required in the operation and maintenance of equipment, such as protective glasses, earplugs, gloves, overalls, etc., and explain in detail the correct use of each type of protective equipment and wearing requirements. For example, the hat should be adjusted to ensure the wearing of a stable hat band; protective glasses should keep the lens clean, no damage, and can effectively block splash; earplugs should be correctly inserted into the ear canal, to play a good sound insulation effect. Through the actual demonstration and on-site wearing practice of the staff, make them master the use of protective equipment skills, to ensure that they are effectively protected in the work process.
l Electrical knowledge and precautionary measures: Since the motor involves electrical parts, electrical is one of the key contents of the training. Train employees to understand the basic knowledge of electrical, such as the principle of grounding protection of electrical equipment, the role of leakage protection devices and inspection methods, the scope of protection voltage and dangerous voltage definition. It is emphasized that the operation of electrical equipment must strictly comply with the relevant operating procedures, such as prohibiting wet hands touching electrical equipment, not to carry out equipment repair and maintenance under charged conditions, and to cut off the power supply and hang warning signs before carrying out electrical maintenance work. At the same time, employees are taught the common electrical accidents (such as electrocution, electrical fires, etc.) preventive measures and emergency treatment, such as electrocution should be immediately cut off the power supply, the use of insulated tools will be electrocuted and the power supply separation, and timely first aid; electrical fires should be quickly cut off the power supply, the use of fire extinguishers (such as carbon dioxide fire extinguishers, dry powder extinguishers, etc.) to extinguish fires, is strictly prohibited to use water or foam It is strictly prohibited to use water or foam fire extinguishers to put out electrical fires.
l Mechanical Risks and Protective Measures: Explain the mechanical risks that may exist during the operation of the equipment, such as cutting injuries that may be caused by the high-speed rotating wind blades, the possible involvement of transmission parts, and injuries caused by the vibration of the equipment that may lead to the loosening of parts and components, etc. In view of these risks, train the employees to take appropriate measures. In view of these risks, the training staff corresponding protective measures, such as in the operation of the equipment is strictly prohibited to hands or other parts of the body close to the wind blade and transmission components; regular inspection of the equipment protection devices (such as guards, guard rails, etc.) is intact and effective, if damaged, should be repaired or replaced in a timely manner; in the maintenance and repair of the equipment, you must first shut down and take a reliable locking measures, to prevent accidental startup of the equipment, and so on. Through case study and practical demonstration, the staff will deeply realize the importance of mechanical protection, enhance self-protection awareness and strictly abide by the mechanical operation regulations.
l Common Failures and Emergency Response Plan: Introduce to the staff the common types of failures that may occur during the operation of the motor motor rotor automatic air blades machine, such as motor non-starting, motor overheating, abnormal vibration of the air blades, unstable rotational speeds, etc., and explain in detail the probable causes of each type of failure and the initial troubleshooting methods. At the same time, it formulates emergency handling plans for different faults, and clarifies the specific steps and measures that employees should take when encountering faults. For example, when the motor does not start, employees should first check whether the power supply is normal, whether the fuse is blown, and whether there is any fault in the control circuit, etc. If the motor is overheated, it should be shut down immediately to check the heat dissipation of the motor, whether the load is too heavy, and whether the bearings are damaged, etc., and take corresponding cooling measures, such as strengthening ventilation and heat dissipation, reducing the load, and replacing the bearings. Through fault simulation drills and actual case studies, the staff will be familiar with the handling process of common faults, improve their emergency response capabilities in case of sudden failure, ensure that the equipment can resume normal operation as soon as possible, and reduce the impact of faults on production.
4、Maintenance knowledge
l daily maintenance work content: training staff to master the daily maintenance of equipment, including equipment cleaning and sanitation, the fastening of the parts of the inspection, lubrication points of the regular oil lubrication, transmission parts of the inspection and adjustment, etc.. For example, every day after the equipment stops, the staff should use a clean rag to wipe the dust and oil on the surface of the equipment to keep the appearance of the equipment neat and clean; regularly check whether the bolts of the motor, the fixing bolts of the wind blades and the bolts of the other connecting parts are loosened, and tighten them in time if they are loosened; according to the lubrication requirements of the equipment, add the right amount of lubricating grease to the lubrication points such as the motor bearings and the hinge points of the transmission parts regularly to ensure that Equipment running smoothly; check the belt tension is appropriate, if slack should be adjusted in time to ensure transmission efficiency and avoid belt slippage. Through routine maintenance, we can find out the potential problems of the equipment in time, prolong the service life of the equipment and improve the reliability of the equipment.
l Regular maintenance program and cycle: In addition to routine maintenance work, you also need to introduce the staff to the regular maintenance program and cycle of the equipment. Regular maintenance work usually includes more in-depth equipment inspection, replacement and adjustment of components. For example, every certain period of time (e.g. monthly or quarterly) to carry out a full inspection of the motor, including checking whether the winding insulation resistance of the motor meets the requirements, the wear of the brushes, the clearance and wear of the bearings, etc., and based on the results of the inspection to decide whether the brushes need to be replaced, the bearings cleaned or replaced, etc.; regular balance checks and corrections of the wind blades to ensure that the blades in high-speed rotational Stability; according to the running time and wear and tear of the equipment, regularly replace the transmission belt, filter and other wear parts. Make clear to the employees the specific period and operation requirements of different maintenance items, so that they can carry out regular maintenance on the equipment according to the specified time and standard to ensure that the equipment is always in good running condition.
l The use and storage of maintenance tools: Introduce the various tools to be used in the process of equipment maintenance, such as wrenches, screwdrivers, pliers, multimeters, megohmmeters, lubricant fillers, etc., and train the staff to use these tools correctly and skills. For example, how to correctly select the appropriate specification wrench for bolt fastening and removal, how to use the multimeter to measure the electrical parameters of the motor, how to use the megohmmeter to detect the insulation resistance of the motor windings, and so on. At the same time, it emphasizes the custodial requirements of maintenance tools, such as tools should be placed in special tool cabinets, categorized and stored, to keep the tools clean and intact, and to inspect and maintain the tools on a regular basis, so as to ensure that the tools can function properly when in use. By training employees to properly use and store maintenance tools, we can improve the efficiency and quality of maintenance work and reduce equipment damage caused by improper use of tools.
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