Release time:

2021-01-05

The rolling bearing for the rotor shaft of the motor is severely worn or the bearing accuracy is low. ② Bending deformation of rotor shaft. The carbon brush installation work position is not correct. ④ rotor shaft end wind blade wiper motor safety cover. (2)V belt transmission part ① The V pulley of the plastic sheet machine is not firmly installed and fixed on the transmission shaft or the matching clearance of the two parts is too large. The pulley manufacturing precision is low, and the end face or the outer circle swing is large. ③The installation quality of the main and passive pulleys is poor, so that the high-speed motion trajectory of the V belt is not on the same plane, resulting in working noise. (3) Gear transmission working parts ① Gear manufacturing accuracy is low, and the tooth pitch error is large. ② The center distance error of the drive shaft of a pair of meshing gears is large. When the center distance is small compared with the standard, the interference sound between the gear meshing transmission teeth will be generated; when the center distance is larger than the standard specified value, the gear meshing transmission working impact sound will be generated. ③ The rolling bearing on the drive shaft is severely worn or has low precision. ④ The center lines of the two drive shafts on the gear are not parallel. So that the two gears can not work correctly. ⑤ The lubrication condition of the teeth of a pair of meshing gears is poor. Insufficient lubricating oil. (4) The screw part of the barrel of the plastic sheet machine ① The screw is assembled in the machine, and the concentricity accuracy of the two parts is low. The rotation of the screw produces friction with the inner circle of the barrel. The verticality error between the end face of the barrel and the connecting flange end face of the barrel seat and the center line of the barrel is large. ③ Screw bending deformation. The straightness error of the shaft center line is too large. ④ The assembly clearance between the screw and its drive shaft is too large. When the work is rotating, the center line of the two axes is different, and the error is large.

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