How to maintain the DC motor motor semi-automatic spring brush machine?
Maintenance of the DC motor motor semi-automatic spring brush machine is essential to extend the life of the equipment, ensure its normal operation and ensure the quality of the brush machine. The following are some of the main points of maintenance:
I. Daily maintenance
1、Cleaning
Motor and the outside of the body: use a clean soft cloth or brush to regularly sweep the motor casing, brushing device and the surface of the control box of dust and debris. Accumulation of dust may affect the thermal performance of the motor and may enter the interior of the machine leading to electrical failure. For hard-to-clean corners, a small vacuum cleaner can be used.
Brushes and commutator: Brushes and commutator are critical parts of the motor. After the machine has been running for a while, wear debris may be generated between the brushes and commutator, which needs to be gently brushed off the surface with a clean, dry, soft-bristled brush. At the same time, pay attention to check whether the brush is loose or abnormal wear.
2、Check mechanical parts
Transmission parts: Check the tension and wear of transmission parts such as belts, chains or gears. If it is a belt drive, the appropriate tension can ensure the effective transmission of power, the tension is too loose may lead to slippage, affecting the speed of the brush; tension is too tight will increase the load of the motor and transmission components, accelerate the wear and tear. For serious wear and tear of the transmission parts, should be replaced in time.
Spring device: check the elasticity and connection of the spring. Decreased elasticity of the spring may affect the contact pressure between the brushes and the commutator, thus affecting the conductivity of the motor. If the spring shows signs of deformation, breakage or looseness, it needs to be replaced or refastened immediately.
BRUSH HEAD SECTION: Check the brush head for wear and the integrity of the bristles. Brush heads that are excessively worn will affect the brushing effect and need to be replaced promptly. At the same time, make sure that the brush head is firmly installed, without loose or crooked phenomenon.
Second, regular maintenance
1、Lubrication
Motor bearings: Motor bearings need to be lubricated with grease on a regular basis to reduce friction and wear. In general, every few months (the specific time according to the frequency of use of the equipment and the working environment), you can use a special bearing grease, through the bearing seat on the oil injection hole to add. When adding grease, pay attention to the right amount to avoid excessive grease leading to overheating of the bearings.
Joints of transmission parts: For the joints of transmission parts with relative motion, such as the meshing parts of gears and the connecting links of chains, etc., it is also necessary to apply lubricant appropriately to ensure their flexible operation. Lubricant or grease can be used, according to the specific requirements of the components to choose the appropriate type of lubricant.
2、Electrical system check
Wire connections: regularly check whether the wire connections between the motor, control box and various sensors are firm. Loose wire connections may lead to poor contact, generate electric sparks, or even cause electrical failure. During the inspection process, make sure that the wire connections show no signs of oxidation, corrosion or damage, and if there are any problems, the connections need to be reconnected or replaced.
Insulation Resistance Test: Using an insulation resistance meter, test the insulation resistance of motors and electrical equipment on a regular basis. A drop in insulation resistance can be caused by aging, moisture or damage to the insulation, which can increase the risk of electrical leakage. If the insulation resistance is found to be below standard, the insulated parts need to be dried out or the insulating material replaced.
Sensor Calibration: Various sensors on the equipment (e.g. position sensors, speed sensors, etc.) are calibrated to ensure the accuracy of their measurements. The calibration process can be carried out in accordance with the operating manual of the equipment, and usually requires the use of standard measuring tools or instruments as a reference.
Third, long-term maintenance
1、Motor performance test
No-load test: At regular intervals (e.g. half a year or one year), conduct a no-load test of the motor. Start the motor under no-load condition and observe the starting speed, running noise and vibration of the motor. Under normal circumstances, the motor should be able to start smoothly, with low noise and vibration during operation. If the motor is found to be difficult to start under no load or running abnormally, it is necessary to further check the internal structure of the motor, such as the rotor and stator for damage.
Load test: If conditions permit, conduct a load test of the motor. By simulating the load under the actual working condition, detect whether the output power, speed and current and other parameters of the motor meet the requirements. Load test can help to find out the problems that may occur under the high load working condition of the motor, such as decreased overload capacity, unstable speed and so on.
2、Equipment Overhaul
Disassembly inspection: Every few years, the equipment can be disassembled and inspected in its entirety. The motor, brush device, control box and other components are disassembled one by one, and the wear and tear, corrosion and damage of internal parts are carefully checked. For some wearing parts, such as brushes, bearings, seals, etc., preventive replacement can be considered even if no obvious problems are found during the inspection.
Re-assembly and commissioning: After completing the disassembly inspection, reassemble the equipment according to its assembly diagram and operation manual. After the assembly is completed, it is necessary to carry out all the debugging of the equipment, including the forward and reverse test of the motor, brush function test, sensor signal test, etc., to ensure that the equipment can work normally.
If you still can't solve the problem by the above ways and means, please contact Xinhui electromechanical technical specialists through the page chat tool to seek help.
