# 、Noise reference value This index specifies the allowable noise level of the ZLYJ250-12.5-2 gear reducer under specified test conditions, mainly for no-load acceptance inspection. Noise testing shall be carried out in a relatively quiet test environment with low background noise interference, so as to avoid background sound, surrounding equipment noise and reflected sound affecting the final
1、 Gear source optimization (eliminating incentives from the source) Tooth profile modification treatment: perform tooth top modification (0.05-0.1mm) and drum shaped tooth modification on the gear to compensate for load deformation, significantly reduce meshing impact, and reduce noise by 2-4dB (A). Accuracy and parameter upgrade: Improve gear accuracy to level 6 of GB/T 10095, control toot
2、 5 common reasons for cooperating with looseness 1. Installation and locking failure: The coupling top thread/locking bolt is not tightened to the specified torque, and the thread becomes loose under long-term vibration; The flat key is not fully embedded in the keyway, resulting in axial movement. 2. Excessive wear of mating surface: The output shaft neck has been subjected to alternating
1、 Visual appearance inspection (the most direct judgment) Shaft extension end seal: Wipe the joint between the input/output shaft and the end cover, and recheck after running for 1 hour. If there is oil film or sludge accumulation again, or if there are ≥ 3 drops of oil dripping per hour, it indicates that the oil seal lip has worn out and failed. Sealing of the joint surface of the box: If
1、 Static space foundation verification Surrounding clear distance meets the standard: the distance between the reducer housing and the wall or other equipment is ≥ 300mm, the distance between the top and the obstacle above is ≥ 500mm, and there is no obstruction covering the surface of the heat dissipation rib. Environmental airflow unobstructed: The installation location should avoid close
1、 Preparation before installation Equipment verification: Verify the nameplate parameters to confirm that the model is WPDX155-60. Check that the tin bronze worm gear and 45 # steel worm gear are not damaged or corroded during transportation, and that the motor flange, seals, anchor bolts, and other accessories are complete. Environmental cleaning: Keep the installation site dry and ventila
1、 Load and selection matching factors Impact load and service coefficient: The first stage spiral bevel gear of DBY has weak impact resistance, which can cause instantaneous impacts such as material jamming and emergency braking in bucket elevators. If the selection is not multiplied by the corresponding service coefficient, it will directly exceed the gear strength margin, resulting in early
The impact of load fluctuations and start stop frequency on DBY series reducers is mainly reflected in four aspects: gear fatigue life, bearing reliability, temperature rise lubrication, vibration noise, and overall machine life. DBY belongs to a two-stage hard tooth surface conical cylindrical gear reducer, with the first stage being an arc tooth bevel gear and the second stage being a cylindrica
