What are the contents of the pre-service training for employees of DC motor motor automatic testing machine?
DC motor motor automatic test machine staff pre-training content:
First, the basic knowledge of equipment
1、Working principle
Detailed explanation of the basic working principle of DC motor, including the law of electromagnetic induction, the application of the law of amperage in the operation of the motor, so that employees understand how electrical energy is converted into mechanical energy, as well as the principle of motor commutation.
Introduce how the testing machine simulates the actual running conditions of the motor, and collects the electrical and mechanical signals of the motor in the running process through various types of sensors, and transforms them into test data available for analysis, such as the measuring principle of rotational speed, torque, current, voltage and other parameters.
2、Structure Composition
Show the overall structure of the tester, including mechanical and electrical structure. Mechanical parts such as motor mounting stage, transmission device, test fixtures, etc.; electrical parts such as power supply modules, control circuits, signal acquisition and processing circuits.
For each structural part, explain its function, role and connection relationship with other parts. For example, how to ensure the stability of the motor mounting platform motor installation, test fixture how to achieve accurate positioning and fixation of the motor, how the power supply module for the various parts of the test machine to provide a stable power supply.
Second, the operation process and standardization
1、Power on and off process
Train the staff to start the machine in the correct order, first check whether the appearance of the equipment is intact, whether the connection lines are normal, and then turn on the power to start the control system of the tester, and wait for the completion of the initialization of the system.
Emphasize that when shutting down the machine, you need to stop the ongoing test tasks, turn off the control system of the tester, and then cut off the power supply. At the same time, tell the staff to carry out simple cleaning and organizing work on the equipment after shutting down the machine.
2、Preparation for testing
Instruct employees on how to properly install and dismantle the motor to ensure that the motor is firmly installed and accurately positioned to avoid inaccurate test results or equipment damage due to improper installation.
Introduce the setting of the parameters of the testing machine before the test, including the selection of test items (such as no-load test, load test, temperature rise test, etc.), the length of the test, and the frequency of data collection. Detailed explanation of the impact of each parameter setting on the test results, so that employees learn to make reasonable settings according to different testing needs.
3、Test operation steps
Conduct a live demonstration to show employees the complete test operation process, starting from the start of the test machine, to the parameters of the motor running process monitoring and recording, and then to the end of the test data analysis and report generation.
Employees are required to strictly follow the operation specifications in the actual operation practice, and master how to observe the running status of the motor in real time during the testing process, such as whether there is any abnormal vibration, noise, etc., as well as how to cope with unexpected situations (such as overheating of the motor, abnormal test data, etc.).
Third, the knowledge of protection
1、Electrical
Emphasize the electrical risks during the use of the tester, such as electric shock, short circuit, etc.. Teach employees how to correctly identify electrical hazard signs and avoid touching electrically charged parts when the equipment is in operation.
Explain how to cut off the power supply in case of emergency, as well as the prevention and extinguishing methods of electrical fires, equip with suitable fire extinguishing equipment, and train employees on how to use it correctly.
2、Mechanical
Introduce the hidden dangers of the mechanical parts of the tester, such as the dangers of entrapment and entanglement that may be caused by transmission parts (belts, chains, gears, etc.). Require employees not to approach or touch these transmission parts when the equipment is in operation, and when performing equipment maintenance or cleaning, the equipment operation must be stopped first.
Train employees to operate the test fixture correctly, to avoid improper use of fixtures resulting in motor fall or damage, as well as injury to personnel.
3、The use of personal protective equipment
Teach employees to wear personal protective equipment correctly, such as eyeglasses, protective gloves, work clothes, etc.. Explain how to choose and use the appropriate protective equipment in different test scenarios to protect the employee's person.
Fourth, common fault handling
1, fault identification and judgment
Introduce to employees the common fault phenomena that may occur during the operation of the tester, such as motor does not rotate, unstable speed, abnormal test data, equipment alarms. Through actual cases and simulated fault demonstration, let employees learn how to accurately identify these fault phenomena.
Train employees to make preliminary fault judgments based on fault phenomena and analyze the possible causes of faults. For example, the motor does not rotate may be a power problem, the motor itself fault, control circuit failure, etc.; test data abnormalities may be sensor failure, signal interference, test parameter setting errors, etc..
2, simple fault handling methods
For some common simple faults, such as loose connection lines, sensor surface dirty, etc., train employees how to carry out on-site troubleshooting and processing. Teach employees to check the appearance of the equipment and the connection first after the fault is found, such as re-plugging the connection line, clean the sensor surface, etc., to see if the problem can be solved.
Emphasize that when encountering a fault that cannot be handled by themselves, employees should immediately stop testing, report to the supervisor or professional maintenance personnel, and describe in detail the fault phenomenon and occurrence, and should not disassemble and repair the equipment without authorization.
V. Data Recording and Analysis
1, the importance of data recording and standardization
Emphasize to employees the importance of accurate and complete data records for motor performance evaluation and quality control. Explain the specification requirements of data recording, including the format, content and time stamp of the record.
Train employees on how to record key data in real time during the testing process, such as the motor's starting current, speed, torque, voltage, current and other parameters during stable operation, as well as the environmental temperature, humidity and other information during the testing process.
2、Basic methods of data analysis
Introduce some basic data analysis methods, such as data comparison analysis (compare the test data with the standard value or previous test data), trend analysis (observe the trend of data change over time or test conditions).
Teach employees how to identify potential problems with motors, such as performance degradation, abnormal fluctuations, etc., through data analysis, and be able to propose reasonable suggestions and improvement measures based on the results of data analysis.
※ If you need help, please contact the technical specialist of Xinhui Electromechanical Equipment Co., Ltd. through the page chat tool for assistance.
