The NGW-L82-56 planetary reducer base is mostly made of welded structures such as low carbon steel and low alloy high-strength steel. The quality of the welding material will affect the performance of the equipment from many aspects such as operating stability and load-bearing capacity. It will also determine the service life of the entire machine by causing failures and shortening the life of components. The specific effects are as follows: 1. Affecting the operating stability and inducing vibration and noise: If the welding material has many impurities and uneven composition, defects such as pores and slag inclusions are likely to occur during welding, causing the weld to be loosely bonded to the base material. The reducer will transmit during operation 11KW According to the torque corresponding to the power, defective parts will cause uneven support stiffness of the machine base, which will cause equipment vibration. At the same time, the vibration will be accompanied by abnormal noise, and as the operation time increases, the vibration amplitude will increase due to the expansion of defects, seriously damaging the operation stability. Destruction of transmission accuracy: High-quality welding materials can ensure that the dimensional accuracy and geometric tolerances of the machine base after welding are up to standard. If the welding material quality is poor, Read More

ZQ850 - 23.34 - IVZ belongs to the large ZQ series reducer. The trial operation must be carried out according to the process of pre-test inspection, staged test, exception handling and post-test closing to ensure the stability of the equipment operation. The specific precautions are as follows: 1. Comprehensive pre-inspection foundation and connection inspection before test run: Use an electronic level to check the levelness of the reducer. The axial deviation must be ≤0.02mm/m, and the radial deviation must be ≤0.05mm/m; use Use a 0.05mm feeler gauge to check the joint surface between the base and the foundation to ensure there is no continuous gap. Press Torque simultaneously - The angle method confirms that the anchor bolts have been tightened in place three times. The coupling needs to be tested with a laser alignment instrument to ensure that the radial deviation is ≤0.05mm and the angular deviation is ≤0.05mm/m. A thermal expansion gap needs to be reserved at the input and output shaft ends. Lubrication and sealing inspection: add the model specified by the manufacturer ISO VG220 or VG32 Read More

The noise levels of hard-tooth surface reducers and soft-tooth surface reducers cannot be generalized. There are differences between traditional ordinary models and technically optimized models. However, based on conventional working conditions and mainstream product characteristics, the overall noise of standard hard-tooth surface reducers is lower and more stable, while the noise of soft-tooth surface reducers is relatively low. High, and noise is prone to occur. The specific comparison is as follows: 1. Core noise difference under normal working conditions: the noise of hard-tooth surface reducer is generally lower and stable, with a normal range of 60-75dB; the noise of soft-tooth surface reducer is relatively high, with a normal range of 70-85dB, and is prone to clutter and noise. 2. The reason for the low noise of the hard-tooth surface reducer: the gear is hardened by carburizing and quenching, and is equipped with high-precision finishing such as gear grinding. The tooth shape is high in precision, the surface is smooth (roughness Ra ≤ 0.8 μm), the contact is uniform during meshing, and the impact is small. The noise frequency is concentrated at the gear meshing frequency and its harmonics. There is no obvious noise. The noise of some precision models can be as low as 60-67 Read More

To determine whether the oil pool depth of the QJS-D200-100-II gear reducer is appropriate, the core focus is on the three cores of 'lubrication effectiveness, operating status stability, and no abnormal loss'. Combined with practical methods such as oil level observation, working condition matching, and operating parameter monitoring, the following are 8 judgment criteria that can be directly implemented (in order of priority): 1. Observe the oil window / Oil level gauge benchmark: After the equipment is shut down and cooled to room temperature, the oil level should be located at ±5mm from the center line of the oil window (or 2/3 of the oil level gauge scale), and meet the gear oil immersion depth of 1-2 tooth height (the tooth height of this model of large gear is about 25-30mm, corresponding to the oil immersion depth of 25-60mm); if it is lower than the lower limit of the oil window (oil immersion <1 tooth height), it is too shallow, and if it is higher than the upper limit (oil immersion>2 tooth height) is too deep. 2. Monitor whether the operating noise is normal: the noise value during normal operation should be ≤85dB (no load)/≤90dB Read More

QJS - D560 - 3C - 25 belongs to QJ The hard-tooth surface reducer in the series is often used in heavy-load scenarios such as cranes. It is often lubricated by oil pool immersion. The reasonable oil pool depth is generally for large gears to be immersed in oil 1 - 2 The tooth height is appropriate. If the depth of the oil pool is too shallow or too deep, it will shorten its service life by destroying the lubrication effect, exacerbating component losses, and deteriorating the oil. The specific effects are as follows: Oil pool is too shallow: insufficient lubrication causes all-round wear 1. Premature gear failure: Oil pools that are too shallow will cause the gear to be immersed in insufficient depth, making it difficult to form a continuous and stable oil film on the tooth surface, and boundary friction or even dry friction is prone to occur when the gear meshes. This will accelerate tooth surface wear and pitting corrosion. In the long run, it will also cause serious failures such as tooth surface gluing and tooth breakage. Moreover, a shallow oil pool means a small amount of oil, which cannot effectively take away the heat generated by meshing. Local high temperatures will further destroy the stability of the oil film, and at the same time, the performance of the gear material will be reduced, significantly Read More

The core causes of worm gear tooth surface wear of WPWK80-40 reducer (the worm gear is mostly made of copper alloy and the worm is alloy steel) can be summarized into 10 categories, covering key dimensions such as lubrication, load, installation, and material. The details are as follows: 1. Improper lubrication: Not using special extreme pressure oil for worm gears (select ordinary gear oil), oil level is too low/ Too high, the oil has deteriorated (containing impurities and moisture) or the oil has not been changed for a long time, resulting in the failure of the lubricating film on the tooth surface and dry friction/semi-dry friction and wear. 2. Overload operation: Long-term over-rated load (WPWK80-40 rated torque is about 250N·m), frequent starts and stops, and impact loads (such as hard starts with load, emergency stops), make the tooth surface contact stress exceed the design limit, aggravating wear. 3. Installation deviation: The verticality of the worm and worm gear axis is out of tolerance (standard ≤ 0.02mm), and the meshing gap is too large/too small (normally 0.15-0.3mm), resulting in deviation. Read More