The reducer coupling is a key component connecting the reducer output shaft and the working machine input shaft. It is mainly used to transmit torque, compensate for the relative displacement of the two axes, and buffer shock absorption. The following is an introduction to the key points of the selection of reducer coupling: Torque transmission: Select a coupling that can withstand the corresponding torque based on the rated output torque of the reducer and the input torque required by the working machine. Generally, the allowable torque of the coupling is greater than or equal to 1.2 - 1.5 times the actual transmitted torque. Displacement compensation: Considering the possible errors during installation of reducer and working machine and the relative displacement of the two axes during working process, select a coupling with appropriate displacement compensation capabilities. For example, for equipment with low installation accuracy or large vibration, couplings that can compensate for large displacement should be selected. Speed ​​requirements: The allowable speed of the coupling should be higher than the actual speed of the reducer and working machine. Especially in high-speed transmission, attention should be paid to the balance accuracy and critical rotation of the coupling. Read More

SEW reducer maintenance involves many aspects. The following are some common repair contents and steps: Fault diagnosis and appearance inspection: Check whether the reducer shell has cracks, deformation or damage, whether the bolts at each connection part are loose, whether there is oil leakage at the oil seal, and whether there is a blockage of the heat sink. Sound check: Listen for abnormal noise or vibration while the reducer is running. For example, wear of gears can cause periodic sharp noise, and damage to bearings can cause irregular hum or vibration. Temperature check: After running for a period of time, use a thermometer to measure the housing temperature of the reducer. If the temperature is too high, it may be caused by poor lubrication, excessive load, poor heat dissipation, etc. Transmission accuracy check: Check the coaxiality and perpendicularity of the output shaft of the reducer and the input shaft, as well as the radial and axial jump of the output shaft, and determine whether there is any installation error or reduction in transmission accuracy caused by damage to internal components. Common faults Read More

In addition to gears, bearings, lubrication, motors, installation and foundation problems, SEW reducer abnormal noise may also have other causes of failure. For different faults, corresponding solutions need to be taken, as follows: Causes of gear problems: wear, damage or poor meshing. Long-term use, excessive load, poor lubrication, etc. will cause wear of the gear tooth surface, resulting in decreased meshing accuracy and abnormal noise; poor gear material quality, impact load or fatigue stress, cracks, broken teeth may occur, and damage to normal meshing may occur; insufficient installation accuracy and deformation of the gear shaft will cause uneven gear meshing clearance or incorrect position, resulting in abnormal noise caused by abnormal friction and collision. Solution: For worn gears, if the wear is light, you can slow down the wear by adjusting the load and improving lubrication; if the wear is serious, a new gear needs to be replaced. For damaged gears, if cracks or broken teeth appear, they must be updated in time Read More

In addition to the grinding process, improving the precision of the reducer can also start from optimizing gear design, improving assembly process, improving box manufacturing accuracy, and adopting advanced detection technology. The specific methods are as follows: Optimizing gear design and reasonable selection of parameters: accurately calculate the gear module, teeth number, pressure angle and other parameters, and accurately model and analyze through computer-aided design (CAD) software to reduce gear transmission errors. For example, appropriately increasing the number of teeth can increase the overlap, make the transmission more stable, reduce vibration and noise, and thus improve accuracy. Shape refining design: Shape the gears, such as the tooth top edge, the tooth direction, etc. The tooth top edge can reduce the impact during gear meshing and improve load distribution; the tooth direction can compensate for the deformation of the gear when it is under stress, making the load distributed more evenly along the tooth width direction and improving transmission accuracy. Improve assembly process to accurately adjust the bearing clearance: During the assembly process, high-precision measurement tools and assembly processes are used to accurately adjust Read More

When the load torque exceeds the rated load capacity of the S67 reducer, the problem can be solved from the following aspects: Adjust and replace large-sized reducer with reducer: This is the most direct and effective method. Depending on the actual load torque, select a reducer model with higher load capacity, such as upgrade to a larger reducer such as the S77 to ensure that the reducer can withstand the required load. Using multi-stage reducer: you can consider using multi-stage reducer in series to share the load. By reasonably configuring the transmission ratio of reducers at each level, the load bearing by each level of reducers is within its rated range, which can not only meet the load requirements but also improve the transmission efficiency to a certain extent. Load optimization process flow: Evaluate and optimize the entire production process flow to see if the actual torque the reducer can be reduced by adjusting the operating mode and reducing unnecessary loads. For example, optimize the speed of material delivery Read More

Use a dial meter to ensure the concentricity of the transmission shaft, which mainly includes installing the dial meter, measuring and adjustment steps. The following is a specific introduction: Preparation work to clean the transmission shaft and related installation surfaces to ensure that there is no oil stains, impurities, etc., so as not to affect the measurement accuracy. Check whether the dial indicator works normally, whether the pointer can rotate flexibly, and whether the range meets the measurement requirements. Install the dial meter to adsorb the magnetic meter seat on a stable fixed bracket or equipment housing to ensure that the meter seat does not shake during the measurement process. Adjust the position of the dial meter head so that its measuring rod is perpendicular to the surface of the transmission shaft, and the meter head is gently in contact with the surface of the transmission shaft. Generally, the dial meter pointer is pre-compressed by 1-2mm to ensure that the pointer can swing normally during measurement. Measuring initial data, manually rotate the transmission shaft, so that the dial meter can rotate around the circumference of the transmission shaft for one week, observe the swing of the dial meter pointer, record the maximum and minimum readings of the pointer. The difference between the two is the diameter of the transmission shaft Read More