What are the common mechanical failures and solutions for motor motor rotor duplex tester?
Motor motor rotor duplex tester common mechanical failures and solutions:
First, fixture failure
l Failure phenomenon
Loose fixture: in the test process, the motor rotor fixture can not be firmly fixed rotor, resulting in rotor position offset, affecting the test accuracy.
Damaged fixture: The collet, positioning pin and other parts of the fixture are worn, deformed or broken, so that the rotor can not be correctly positioned, or even can not be clamped.
Fixture opening and closing is not flexible: the opening and closing action of the fixture is not smooth, resulting in lower testing efficiency.
l Possible reasons
Long-term use and frequent operation: After a large number of test cycles, the fastening screws of the fixture may loosen, and the collets and positioning pins may wear out due to repeated friction.
External impact: The fixture may be damaged due to improper operation or accidental collision when mounting or dismounting the motor rotor.
Lack of maintenance: Mechanical transmission parts of the fixture (e.g. linkage, slider, etc.) without regular lubrication will lead to increased friction between the moving parts and inflexible opening and closing.
l Solution
Regularly check the fastening screws of the fixture and tighten the loose screws in time. For worn collets and locating pins, they should be repaired or replaced according to the degree of wear. If the collet is lightly worn, it can be repaired by grinding, etc. If it is severely worn or broken, the collet or positioning pin must be replaced with a new one.
Be careful during operation to avoid external force impacting the fixture. If the fixture is damaged, it should be stopped immediately and the damaged parts should be repaired or replaced to ensure that the fixture can work normally.
Periodically clean and lubricate the mechanically driven parts of the fixture. Use appropriate lubricants, such as lubricating oil or grease, applied to the connecting rod, slider and other moving parts of the contact surface, in order to reduce friction, so that the fixture open and close flexible.
Second, the transmission mechanism failure
l Failure phenomenon
Transmission parts wear: such as belts, chains, gears and other transmission parts wear, resulting in reduced transmission efficiency, the movement speed of the tester is not stable.
Loose transmission parts: loose transmission parts of the connection screws, so that the transmission process vibration, noise, and even lead to transmission interruption.
Transmission parts jammed: due to the entry of foreign objects, poor lubrication or damage to components, transmission parts (such as screws, turbine worm gear, etc.) jamming phenomenon, so that the tester can not operate normally.
l Possible reasons
Normal wear and tear: under long time operation and load, the transmission parts will naturally wear out. For example, in the process of constant friction and stretching of the belt, the surface rubber will gradually wear out, resulting in belt slack.
Improper installation: If the transmission components are not installed in accordance with the correct methods and requirements, such as screws are not tightened, belt or chain tension is not adjusted, it is easy to loosen or early wear.
Environmental factors: dust, oil and other impurities in the working environment into the transmission mechanism, or environmental humidity, temperature and other factors affect the lubrication effect, may lead to transmission parts failure.
l Solution
Regularly check the wear and tear of transmission parts. For belts and chains with light wear, the wear can be compensated by adjusting the tension; for parts with serious wear, such as gears and belts, they should be replaced in time. When replacing transmission parts, make sure that the specifications and models of the new parts are the same as those of the original parts and that they are installed correctly.
Check the connecting screws of transmission parts and tighten loose screws regularly. When installing new transmission parts, operate in strict accordance with the installation instructions of the equipment to ensure that the parts are firmly installed and the tension is appropriate.
Keep the working environment clean to prevent impurities such as dust and oil from entering the transmission mechanism. Regularly lubricate the transmission parts, and choose suitable lubricants according to different parts and working environment. If the transmission components are jammed, first stop the tester running, then check and get rid of foreign objects, repair or replace the damaged parts.
Third, the worktable failure
l Failure phenomenon
Uneven surface of the worktable: Due to the weight of the motor rotor for a long time, vibration during the test process or other external forces, the surface of the worktable is deformed, pits and other uneven phenomena, affecting the placement of the motor rotor and test accuracy.
Loose connection between the working table and other parts: the connection screws between the working table and the machine body or other supporting parts are loose, resulting in shaking of the working table and affecting the stability of the tester.
l Possible causes
Heavy load and vibration: If the weight of the motor rotor to be tested is large and there is a large vibration during the test, the worktable will be easily deformed by the pressure and impact.
Material fatigue: After the bench is used for a long period of time, its material may be fatigued, leading to a decrease in strength, which in turn leads to surface unevenness.
Inadequate installation and maintenance: During installation, if the connection screws of the workbench are not tightened, or if there is no regular inspection and maintenance in the course of use, it is easy to have the problem of loose connection.
l Solution
Regularly check the surface flatness of the workbench. If the surface unevenness is mild, it can be repaired by grinding and scraping; if the unevenness is serious, it may be necessary to replace the worktable. In daily use, avoid placing excessively heavy items on the table to reduce unnecessary vibration and shock.
Check the connection between the workbench and other parts and tighten the connection screws regularly. If damage or wear is found on the connection parts, repair or replace the relevant parts in time. When installing a new workbench, make sure that it is firmly installed and tightly connected.
※ If the above ways and means still can't solve the equipment failure, please contact the technical specialist of Xinhui Mechanical and Electrical Equipment Co., Ltd. through the page chat tool to seek help.
