What are the common mechanical failures and solutions for brushless motor motor automatic stator-rotor assembly machine?
Brushless motor motor automatic stator-rotor assembly machine common mechanical failures and solutions are as follows:
First, the transmission system failure
1, belt drive failure
Failure phenomenon: belt slippage, resulting in reduced transmission efficiency, stator-rotor assembly action is not smooth; belt wear is serious, cracks or breaks.
Failure causes: belt tension is not enough; pulley wear or installation is not parallel; the working environment in the oil and other pollutants, affecting the belt friction.
Solution: adjust the belt tension, can be achieved by adjusting the tensioning wheel or motor position; check the wear of the pulley, such as wear and tear in time to replace, to ensure that the installation of the pulley parallelism; clean up the belt and the pulley surface of the oil, and do a good job of protection measures, to prevent the oil contamination again.
2、Chain drive failure
Failure phenomenon: chain loosening, jumping teeth phenomenon when running; chain wear is serious, the elongation is too large; sprocket wear, resulting in poor coordination between the chain and sprocket.
Reason: The chain is used for a long time without adjusting the tension; chain lubrication is not enough; sprocket material is not good or the working load is too big.
Solution: Adjust the chain tensioning device so that the chain tension is suitable; add special lubricant to the chain regularly to ensure the lubrication effect; check the wear of the sprocket and replace the sprocket according to the degree of wear and choose the sprocket with good quality and high strength.
Failure of positioning and clamping device
1、Inaccurate positioning
Failure phenomenon: the position deviation of stator or rotor is large when assembling, resulting in unqualified assembling quality.
Failure causes: positioning fixture wear, positioning accuracy decreased; positioning sensor failure, signal inaccuracy; equipment installation foundation is not solid, resulting in vibration affect positioning.
Solution: Replace the worn positioning fixture, calibrate the accuracy of the positioning fixture; check the positioning sensor, clean the probe, calibrate or replace the sensor; check the equipment installation foundation, tighten the ground bolts, if necessary, re-pour the foundation to improve the stability of the equipment.
2、Clamping is not firm
Fault phenomenon: stator or rotor loosening in the process of assembly, affecting the effect of assembly.
Failure causes: insufficient clamping cylinder pressure; clamping mechanism wear or damage; clamping block surface wear, and workpiece contact is not close.
Solution: Check the cylinder pressure, adjust the pressure to the appropriate value; check the clamping mechanism, repair or replace the damaged parts; replace the worn out clamping block to ensure that the clamping block and the workpiece contact is good, you can add non-slip pads on the surface of the clamping block to improve the clamping force.
Third, the press-fitting mechanism failure
1、Insufficient pressure loading force
Failure phenomenon: the stator and rotor can not be completely pressed into place, affecting the performance of the motor.
Failure causes: insufficient pressure in the hydraulic system; pressure loading cylinder internal leakage; pressure loading head wear, and the workpiece contact area is reduced.
Solution: Check the hydraulic system, adjust the relief valve and other pressure regulating devices to improve the system pressure; check the press-fit cylinder seals, such as leakage and timely replacement; repair or replacement of worn press-fit head, to ensure that the press-fit head and the workpiece contact is good.
2、Stuck in the process of press fitting
Failure phenomenon: pressure loading process appears to stop, not smooth situation.
Failure causes: poor lubrication of the press fitting guide rail; press fitting mechanism in the foreign body stuck; press fitting head and guide sleeve with too tight.
Solution: Add lubricant to the press fitting guide to ensure good lubrication; clean up the foreign matter in the press fitting mechanism; check the gap between the press fitting head and the guiding sleeve, and make appropriate adjustments to ensure that the two can be well guided, but will not produce excessive resistance.
Fourth, the conveyor failure
1、Conveying speed is not stable
Failure phenomenon: stator or rotor speed in the process of conveying fast and slow, affecting the efficiency of assembly and beat.
Failure causes: conveyor motor failure; conveyor chain or belt tension is not uniform; conveyor track has obstacles or uneven.
Solution: check the conveyor motor, repair or replace the faulty motor; adjust the tension of the conveyor chain or belt to make it uniform; clean up the obstacles on the conveyor track, repair or replace the uneven track.
2, conveying position offset
Failure phenomenon: the stator or rotor in the conveying process deviates from the predetermined track, resulting in the inability to accurately reach the fitting position.
Fault cause: conveyor track installation is not straight; uneven wear of conveyor rollers; damaged or improperly adjusted guiding device.
Solution: Re-adjust the straightness of the conveying track to ensure the precision of track installation; replace the unevenly worn conveying rollers; check the guiding device, repair or replace the damaged parts, and adjust the position of the guiding device to ensure that the workpiece does not deviate during the conveying process.
※ If you still can't solve the problem by the above ways and means, please contact the technical specialists of Xinhui Mechanical & Electrical Equipment Co.
