Reducer oil leakage is a common fault during equipment operation. It not only causes waste of lubricating oil and environmental pollution, but also causes key components to intensify wear due to poor lubrication, and even cause shutdown accidents. To completely cure the oil leakage problem and avoid repeated repairs, it is necessary to accurately identify the root cause and take targeted measures. The root causes of reducer oil leakage can be mainly attributed to the following four aspects: 1. Root cause analysis of internal pressure imbalance ('smooth breathing'): When the reducer is running, gear meshing friction will generate a large amount of heat, causing the temperature inside the box to rise, the oil to expand, and the internal pressure to increase accordingly. If the breather cap (breather) is blocked by sludge, coal powder, etc., or the design aperture is too small and the internal high-pressure gas cannot be discharged, the lubricating oil will be squeezed out from the gaps with the least resistance (such as oil seals and joint surfaces). Symptomatic repair of internal pressure imbalance: Unblock or replace the vent cap: Check and clean the vent cap regularly to ensure that it 'breathes' smoothly. For easily clogged rings Read More

Abnormal noise and loud noise in the reducer are usually early warning signals of failure from the equipment. In order to avoid blind disassembly leading to damage expansion or increased repair costs, it is recommended to follow the scientific process of 'judge first, then dismantle'. You can quickly locate the fault location by following the following four steps: Step 1: Preliminary investigation and shutdown protection. Once you find that the reducer is making non-smooth and abnormal sounds, you should stop the equipment immediately to prevent further deterioration of the fault. After the equipment has cooled down, first observe the appearance and check whether there are traces of oil leakage at the joints of the casing, the shaft extension end or the oil drain port, and whether the external connecting bolts are loose. Step 2: Identify the root cause of the fault through 'listening'. Damage to different components will emit sounds with different characteristics. This is the most direct way to locate: Continuous 'buzzing' sound or low roar: mostly caused by excessive bearing clearance, ball wear or inner and outer ring deformation; it may also be caused by gear eccentricity, tooth surface gluing or excessive meshing clearance. Sharp 'squeak' sound Read More

Routine maintenance of the elevator reducer is the key to ensuring long-term stable operation of the equipment, extending its service life and preventing sudden failures. Combined with the maintenance specifications of industrial equipment, daily maintenance mainly includes the following core points: 1. Inspection and management of lubrication system Lubrication is an important means to reduce equipment wear and extend service life. The oil level of the reducer needs to be checked regularly on a daily basis to ensure that the oil level remains in the middle of the upper and lower oil marking lines to avoid insufficient lubrication caused by too low an oil level, or rising oil temperature and oil leakage caused by too high an oil level. At the same time, the status of the lubricating oil should be closely monitored. If the oil is found to turn black, turbid, smelly, or have a significant change in viscosity, it means that the oil has deteriorated or been contaminated and needs to be replaced in time. In addition, you should also check whether there is oil leakage at the seals such as the shaft end of the reducer and the joint surface of the box. Once found, it must be repaired immediately. 2. Real-time monitoring of operating status During the operation of the reducer, it is necessary to focus on changes in temperature, vibration and noise. just Read More

Many industry practitioners only compare the power to match the reducer model, and are confused when faced with the complicated reduction ratio, rated torque, allowable torque, shaft diameter and other parameters in the manufacturer's sample. As everyone knows, the hoist is an alternating impact load device, and the single power matching error is extremely large, which is also the core cause of tooth chipping, shaft breakage, and overload burnout of the reducer. Jiangsu Taigong Reducer specializes in free consultation on reducers and reduction motors. Putting aside complicated professional terminology, combined with the exclusive working conditions of the elevator, it is easy to understand and disassemble the meaning of the four core parameters, value standards and model naming rules, and accurately selects suitable models through parameters. 1. Model naming parameters: understand the model and quickly lock the model attributes. There are unified rules for the model coding of elevator reducers on the market. Take the frequently used ZSY355-28-2S and NBD450-20 as examples to teach you how to quickly decode: 1. ZSY355-28-2S: ZSY represents the third-level hard tooth surface circle. Read More

In the reducer Selection, the service factor (Service Factor, often recorded as SF, KA or fs) is the safety margin to deal with unforeseen factors such as starting shock, load fluctuation, calculation error and harsh environment. The theoretical calculation torque must not be directly used when Selection, it must be multiplied by a service factor greater than 1 to determine the final Selection torque (Selection torque = theoretical output torque × service factor). For heavy loads and impact loads, the selection of service factor mainly depends on load characteristics, working system, equipment importance and operating environment. The following is the specific selection guide and key parameters: 1. Reference range for service factor selection. The service factor needs to be matched according to the actual load type and operating conditions of the equipment: Smooth load (Type A): such as fans, water pumps, light conveyor belts, etc. that rotate at a constant speed, and the load is uniform without impact. The service factor usually takes 1.0 - 1.2. Medium punch Read More

In industrial production, reducers, as core accessories of transmission equipment, are widely used in various production lines such as conveying, mixing, lifting, and processing. Many maintenance technicians and equipment managers will encounter the same thorny problem: the newly replaced reducer has not been used for long, and oil leaks frequently from the gaps in the housing and the shaft end seal. Even if the oil seal is replaced repeatedly and sealant is added, the problem still recurs. Most people will immediately blame the poor quality of oil seals and lubricants. In fact, the root cause of most oil leakage failures is not the quality of the accessories, but the mismatch between the installation method and the model. Vertical and horizontal reducers have completely different structures, lubrication systems, and ventilation hole position designs. Once the installation orientation is wrong, the internal oil pressure balance will be directly broken, and oil leakage problems will continue to occur frequently. I will give you a detailed breakdown of the differences between the two, applicable scenarios and Selection installation core logic to eliminate oil leakage from the root cause. 1. Straightforward distinction: The basic definition of vertical & horizontal reducers is simply that the two most Read More