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- How to maintain Siemens Siemens reducer that has been deactivated for a long timeThe maintenance method of Siemens reducer is as follows: Cleaning and protection, first cut off the power supply, ensure maintenance operation in the absence of electricity, use a clean cloth to wipe the dust, oil and debris on the surface of the reducer, and keep the appearance clean. For exposed metal parts of the reducer, such as the shaft end of the machine housing, an appropriate amount of anti-rust oil or grease can be applied to prevent rust. If the reducer is in a dusty or humid environment, plastic film or canvas are also used to cover it to prevent dust and water vapor from entering. Maintenance of the lubricating system to check the oil level and oil quality of the lubricating oil in the reducer. If the oil level is too low, lubricating oil of the same type should be added to the specified oil level; if the oil quality deteriorates, if there is a blackening, emulsification and odor, all the old oil should be discharged, and the oil tank and lubricating system should be cleaned with a special cleaning agent, and then a new lubricating oil should be replaced. For reducers with oil bath lubricated, it is necessary to ensure that the amount of oil in the oil tank is sufficient and the oil standard is clearly visible, so that the oil level should be observed regularly.
- What are the faults of Flender Flander reducer when it is frequently started and stoppedFlender Flander reducer is prone to the following failures when frequent start and stop: Gear wear: When frequent start and stop, the impact load under the reducer gear increases. When starting, the torque output by the motor is suddenly applied to the gear, resulting in a large impact force; when stopping, the movement of the gear suddenly stops, which will also produce a reverse impact force. Under the action of this impact load for a long time, the gear teeth surface is prone to wear, pitting, peeling, etc., and in severe cases, it may even lead to teeth. The wheel breaks the teeth, affecting the normal transmission bearing of the reducer: frequent start and stop will cause the bearing inside the reducer to be subjected to alternating load. When the shaft starts, the rotation speed of the shaft will rise rapidly, and the bearing will bear large radial and axial forces. When stopped, the inertia of the shaft will cause the bearing to be subjected to additional impact force. This alternating load will accelerate the wear of the bearing, increase the clearance of the bearing, cause the bearing to generate heat and vibration, and even cause jamming, affecting the stability and reliability of the reducer.
- How to check for faults when Flender reducer is runningFlender Reducer suddenly shuts down during operation, and fault checks can be carried out from electrical machinery and lubrication. The specific methods are as follows: Electrical system check power supply check: Check whether the power switch is tripped. If it is tripped, check whether there is short circuit overload and other reasons that cause tripping. Use a multimeter to measure the power supply voltage to confirm whether the voltage is within the rated voltage range of the reducer, whether the voltage fluctuates too much. Whether the three-phase voltage is balanced. If it is unbalanced, it may be a problem with the power line. Motor inspection: Check whether the motor winding has a short circuit and circuit breaker, and use an insulation resistance tester to measure the insulation resistance of the motor winding. If the insulation resistance is too low, it means that the motor may have insulation damage. At the same time, check whether the motor wiring is loose. If the wiring is loose, it will cause poor contact and make the motor unable to operate normally. Control circuit check: Check whether the relay contactor and other components that control the operation of the reducer are working normally, and whether there are contacts.
- What tools can help us determine the model of reducer couplingWhen determining the model of the reducer coupling, the following types of tools are usually required: Measuring tool calipers: used to measure the relevant dimensions of the coupling, such as the shaft diameter hole diameter keyway size, etc. Generally speaking, the shaft diameter dimensions of the reducer output shaft and motor shaft are the key parameters for selecting the coupling. The caliper measurement accuracy can usually reach 0.01mm, which can meet the dimension measurement requirements of general coupling Selection Micrometer: For some coupling size measurements with high accuracy requirements, micrometers are commonly used tools. Its measurement accuracy is higher than that of the calipers, and can be accurate to 0.001mm, and are suitable for measuring smaller sizes and high accuracy requirements, such as the inner diameter of the shaft hole of the coupling, the depth scale can play an important role when measuring parameters such as the depth of the keyway of the coupling, and the shoulder depth, and the measurement accuracy is generally around 0.02mm, and the relevant depth dimension can be accurately measured so as to match the corresponding scale of the reducer and motor.
- Will abnormal noise of Siemens reducer become more severe as the running time increases?The abnormal noise of Siemens reducer usually becomes more serious with the increase of running time. The main reasons are as follows: component wear intensifies: As the running time increases, the wear of key components such as gear bearings will gradually increase. For example, the wear of gear teeth surfaces will further reduce the meshing accuracy, resulting in increased noise; bearing wear will increase the play, and vibration and noise during operation will also increase the fault range will be expanded: If the reducer has some initial faults, such as local short circuit of the motor winding, during operation, the short circuit situation may gradually deteriorate, affecting the overall performance of the motor, and thus making the abnormal noise of the reducer more obvious. For example, if the problem of uneven load is not solved in time, it will cause the components inside the reducer to bear unbalanced forces for a long time, causing more components to be damaged, and the noise will become more serious. Lubricating performance will decline: after long-term use of lubricating oil, the performance will decline due to oxidative pollution and other reasons.
- How to determine the model of reducer couplingDetermine the model of the reducer coupling, multiple factors need to be considered. The following are the specific steps and methods: Use the required torque to be transmitted: This is a key factor in determining the coupling model. It is necessary to calculate the required torque based on the rated power speed of the reducer and the maximum torque during operation. Generally speaking, a certain safety factor must be considered to ensure that the coupling can reliably transmit torque in actual work and avoid overload damage caused by insufficient torque. Speed requirements: The allowable speed of the coupling should be greater than the actual working speed of the reducer. Different types of couplings perform differently when rotating at high speed. For example, some couplings may cause greater deformation or vibration due to the action of centrifugal force, so it is necessary to select the appropriate coupling type and model according to the speed Installation space: The installation space limits the size and structural form of the coupling. It is necessary to measure the distance between the output shaft of the reducer and the input shaft of the connected device.
- Introduction to the common types and characteristics of reducer couplingsThe 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 types and characteristics of reducer couplings: Common types and characteristics. The toothed coupling structure is composed of two semi-couples with internal teeth and an intermediate sleeve with external teeth. Features: High load-bearing capacity and can transmit large torque; allows large comprehensive displacements between the two axes, including axial displacement, radial displacement and angular displacement; reliable work and long service life; but high manufacturing and installation accuracy requirements, requiring regular lubrication and maintenance. Application: Commonly used in heavy machinery such as metallurgy, mining, lifting and transportation, as well as high-speed and high-power transmission systems. Elastic column pin coupling structure: Use several non-metallic elastic column pins to connect two half couplings together. The column pins are usually made of materials such as nylon. Features: Simple structure, easy installation; has certain elasticity
- Key points about Selection of reducer couplingThe 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.
- What are the common maintenance contents and steps for SEW reducers in GermanySEW 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
- What are the possible faults of SEW reducer abnormal noise? What are the methods to solve the fault?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