Industry-news

1、 Damaged direct fitting components at the shaft end Output shaft neck: The mating surface is repeatedly rubbed and impacted, and the shaft diameter is quickly ground down. When the wear exceeds 0.1mm, the surface quenching layer will be damaged, causing fatigue cracks and even shaft breakage. Coupling inner hole: The inner hole is worn out of roundness by alternating impact, and the origin

1、 Preliminary assessment of drawings and tolerance zones First, verify that the standard shaft diameter of the BWD2 model output shaft is 35mm, and confirm the fitting tolerance code indicated on the drawing. If the fit is marked as H7/s6 or H7/r6, the tolerance zone of the hole completely falls below the tolerance zone of the shaft, which belongs to standard interference fit. If labeled

1、 The direct impact of bearing hole accuracy on heat dissipation When the coaxiality and roundness deviation of the bearing hole exceed 0.02mm, it will damage the fit between the outer ring of the bearing and the hole wall, significantly increase the contact thermal resistance, and the heat generated by the operation of the bearing cannot be quickly conducted to the wall of the box. The local

1、 Accurate investigation of box accuracy deviation Use an inner diameter gauge and laser alignment instrument to check the bearing holes point by point, and confirm whether the tolerance of H7 aperture, cylindricity level 7, and coaxiality level 6 meet the standards. Verify the deviation of the center distance of the bearing hole to ensure that the parallelism of the inner axis of the span

1、 Source margin optimization reduces ineffective grinding hours Strictly control the common normal clearance of the hot rolling gear, compress the single-sided clearance of the grinding gear from the conventional 0.2mm to 0.12-0.15mm, and directly reduce the grinding time by 30%. The heat treatment adopts fixture assisted quenching+pre deformation compensation to control the deformation of

1、 Existing efficiency improvement foundation and current level By 2025, the average yield rate of precision reducer gear grinding in China has reached 98.7%, and the average grinding time for a single reducer gear has been reduced from 4.8 hours in 2024 to 4.1 hours, with an efficiency improvement of 14.6%. Top enterprises have achieved an 18% reduction in single tooth grinding time and a 2

1、 Pre prevention and control measures before adjustment Eliminate soft foot hazards: Use a feeler gauge to check the contact between the reducer, motor/load base, and foundation. All feet should not be suspended, and the single foot gap should be ≤ 0.03mm to avoid force rebound after adjustment. Basic accuracy verification: Use a precision level to measure the levelness of the gearbox body,

1、 Safety and material preparation before disassembly and assembly Cut off the power supply of the reducer and supporting motor, hang a warning sign prohibiting closing, remove the motor wiring and make proper markings. Completely remove external loads such as couplings and sprockets from the output shaft end to avoid deformation of the shaft system during disassembly. Prepare specialized