Article List

• How to check whether the gears of ZJY90-12.5-S-axis mounted gear reducer are worn

  To check whether the gears of the ZJY90-12.5-S shaft-mounted gear reducer are worn, you can use the following methods: Visual inspection: directly observe the gear surface with the naked eye or with the help of a magnifying glass to see if the tooth surface is smooth and there are obvious wear marks, cracks, peeling, pitting and other damages, and at the same time pay attention to whether the tooth shape is complete, whether the tooth top becomes round, and whether the tooth root is worn. Inspection of measurement tool: Use calipers, micrometers or gear measuring instruments to measure the gear's tooth thickness, tooth pitch, tooth surface roughness, radial jump parameters, etc., and compare them with the new product standard value. If the measurement value exceeds the allowable error range, it means that the gear has wear or deformation. Color coating method: apply a thin color coating on the surface of the gear, let the gear run in a normal working state for a period of time before taking it off, and observe the wear of the color coating. The area where the color coating disappears is usually a more severely worn area. Noise and vibration analysis:

  August 18, 2025
• ZJY212-20-How to operate the field balance method in the solution to vibration abnormality of S-axis-mounted reducer

  The specific operation steps of the field balance method in the solution to vibration abnormality of the ZJY212-20-S shaft-mounted reducer are as follows: 1. Preparation work: Tools and equipment: Prepare vibration analyzer, test block (multiple specifications), electronic phase meter, wrench, marker, safety lock, etc. Safety measures: Stop the machine and cut off the power supply, lock the sign, and then operate it after confirming that the equipment is completely stationary. Inspection equipment: Exclude bearing damage, looseness, and irregularity. 2. Initial vibration measurement: Installing vibration sensors at the bearing seat of the reducer or near the rotor is generally required to be installed in both horizontal and vertical directions. Start the device to the operating speed and record the initial vibration value using a vibration analyzer, including the amplitude and phase angle. 3. Data analysis: Use a vibration analyzer to identify whether the dominant frequency is 1× speed frequency to confirm whether it is static or dynamic imbalance. Determine the type of imbalance, if it is a rotation with a relatively large length and diameter

  August 18, 2025
• What is the working principle of the protection device for the reduction oil tank with excessive temperature?

  RS57-10 The working principle of the oil tank overtemperature protection device of the reducer is to monitor the oil tank temperature in real time through a temperature sensor and compare it with the set temperature threshold. When the temperature exceeds the threshold, the corresponding protection action is triggered to prevent the reducer from being damaged by overheating. The specific details are as follows: Temperature monitoring: The core component of the protection device is a temperature sensor, and common ones include thermistors, thermocouples, etc. These sensors are installed in or near the oil tank of the reducer, and can sense the temperature changes of the lubricant in real time and convert the temperature signal into an electrical signal. Signal comparison and processing: The electrical signal output by the temperature sensor will be transmitted to the control unit, and a comparator is provided in the control unit to compare the received temperature electrical signal with the preset temperature threshold. When the temperature electrical signal exceeds the set temperature threshold, the comparator will trigger subsequent protection actions. Protection action execution: power off: if the protection device has power off

  August 15, 2025
• How to determine the heat dissipation requirements of hard-toothed RS87-7.27 helical gear reducer

  Determine the heat dissipation requirements of the hard toothed RS87-7.27 helical gear reducer usually needs to be achieved through thermal balance calculation. The specific method is as follows: Calculate the power loss: During the operation of the reducer, power loss will be generated due to factors such as gear meshing, bearing friction, and oil stirring. The lost power will be converted into heat. Calculate the heat dissipation power: The calculation of the heat dissipation power is related to the heat dissipation area A of the reducer, the heat dissipation coefficient K, and the ambient temperature 0 and the maximum operating temperature allowed by the reducer. The heat dissipation coefficient K is related to the heat dissipation method. During natural heat dissipation, the value of K is generally between 10-15W/(m²・K); if there is fan cooling, the value of K can reach 20-25W/(m²・K). The heat dissipation area A can be determined by calculating the surface area of the reducer case. For the case with the heat dissipation fins, the increased area of the heat dissipation fins needs to be considered. Thermal balance verification: According to the principle of thermal balance, when reducing

  August 15, 2025
• How to control the operating conditions of coaxial TY250-50-45KW gear reducer

  To control the operating conditions of the coaxial TY250-50-45KW gear reducer, it is necessary to start from installation and debugging, lubrication management, load control, monitoring and maintenance, etc. The details are as follows: Accurate installation and centering: During installation, ensure that the concentricity deviation between the reducer input shaft and the motor shaft, the output shaft and the load shaft is less than 0.05mm. It is recommended to use a laser centering instrument to calibrate and re-check after 24 hours of operation to reduce bearing wear and vibration. Reasonable choice of lubricant: Select the appropriate lubricant viscosity according to the working environment temperature. ISO VG68 lubricating oil is used when the ambient temperature is lower than 0℃, and lubricating oil above VG220 is used in high temperature working conditions. At the same time, the oil level must be controlled well. The liquid level of the oil tank must cover 1-3 times the height of the large gear teeth to avoid excessive or insufficient oil causing heat or insufficient lubrication. Strictly control the load: calculate the actual torque according to the formula to ensure that 15 are left when Selection

  August 14, 2025
• What are the methods to control the operating conditions of the coaxial TY112-35.5-4KW reducer

  In addition to common methods, the following methods can be used to control the operating conditions of the coaxial TY112-35.5-4KW reducer: In addition to common methods, the following methods can be used: electrical control method Resistance speed regulation method: connect a resistor in series in the input circuit of the motor, and adjust the input current of the motor by changing the resistance value, thereby achieving speed regulation. This method has a simple structure, low cost, a large speed regulation range, but has a low speed regulation accuracy, and energy loss will occur during the speed regulation process. Autotransformer speed regulation method: Change the motor input voltage by changing the tap position of the autotransformer connected to the motor, thereby adjusting the motor speed. This method has good speed regulation smoothness and can achieve stepless speed regulation. The equipment is simple, low cost, but low efficiency. Vector control speed regulation method: This is a technology that uses the inverter to control a three-phase AC motor. By adjusting the output frequency, output voltage and angle of the inverter, the output of the motor is controlled. it

  August 14, 2025
• What are the common reasons for noise in ZSY450-45-II gear reducer

  ZSY450-45-II The common causes of noise in gear reducers are as follows: Lubrication problems Insufficient lubricating oil: Too little lubricating oil will cause direct friction between moving parts such as gears, which will cause noise, and at the same time will aggravate component wear. Lubricant deterioration: lubricant aging, contamination or reduced viscosity, unable to form an effective oil film, and cannot play a good role in lubrication and buffering, causing friction when gears are meshed, resulting in dry friction noise, accompanied by rising temperature. Gear problems. Gear wear or damage: long-term high load operation, insufficient lubrication or poor gear material, etc., will cause wear of the gear tooth surface, pitting, broken teeth or collapse. After the tooth surface is worn, the gear clearance becomes larger, and noise will be made due to unstable meshing when rotating. Gear installation error: When gear is installed, the coaxiality and parallelism do not meet the requirements, or the gear shaft is bending and deformed, which will cause the gear meshing position to be offset, local stress is too high, and periodic abnormal noises are generated during operation.

  August 13, 2025
• How to use sound level meter and spectrum analyzer to check noise in ZSY250 gear reducer

  Use a sound level meter and spectrum analyzer to check the noise of the ZSY250 gear reducer. You can refer to the following steps: Use of sound level meter 1. Preparation: Calibration: Before use, the sound level meter must be calibrated to ensure the accuracy of the instrument measurement. The calibrator can generate a signal of a known sound pressure level to calibrate the sound level meter. Select measurement mode: According to the characteristics of reducer noise, select the appropriate time-weighted mode. For example, the fast response mode is suitable for measuring stable noise, and the slow response mode is suitable for measuring noise with large fluctuations. Set measurement range: Estimate the sound pressure level range of the reducer noise and set a suitable measurement range to avoid inaccurate measurement results due to improper range selection. 2. Determine the measurement point: Generally, multiple measurement points can be selected around the housing of the reducer, such as 1 meter away from the housing and the height is approximately the same as the height of the central axis of the reducer. You can also choose the input, output, and gear shaft located at the transmission chain.

  August 13, 2025
• In addition to coaxial installation of ZQ500-20.49-2 reducer, what other issues should be paid attention to

  When installing the ZQ500-20.49-2 reducer, in addition to coaxiality, the following issues should be paid attention to: Installation position and basic position selection: The reducer should be installed in a smooth, dry and clean position to ensure that there is enough space for maintenance and inspection. At the same time, it is necessary to facilitate staff to get close to oil standards, ventilation plugs and oil drain plugs. Foundation fixation: The reducer must be installed on a solid foundation or base to prevent vibration and displacement during operation. The strength and stiffness of the foundation should be able to withstand the weight of the reducer and the load during operation. Installation Direction: Determine the optimal installation direction for the reducer according to the manufacturer's recommendations, usually horizontally, but there are some special models that can be installed vertically. The installation direction will affect the lubrication effect and heat dissipation performance. If the installation direction is incorrect, it may lead to poor lubrication or poor heat dissipation, which will affect the service life of the reducer. Fixing method: Use the correct fasteners to securely secure the reducer to the bottom

  August 12, 2025
• What are the steps to check the coaxiality of the motor shaft and the input shaft of the reducer when installing the ZQ350-25-III reducer?

  When installing the ZQ350-25-III reducer, the steps to check the coaxiality of the motor shaft and the input shaft of the reducer are as follows: 1. Preliminary correction: Use visual measurement to compare the front and back of the docking hand with the steel ruler, so that the front and back of the motor and reducer are initially aligned to reduce the start error, and calibrate the motor center high for the subsequent dial meter to reduce the error. 2. Proofread the center line contour: Install the dial meter in the main view direction, fix the magnetic seat of the dial meter to the input shaft of the reducer (if the reducer is inconvenient to rotate, you can also install the magnetic seat on the motor to take over), rotate the reducer to take over (or the motor shaft) for one turn, record the readings of the dial meter at the upper and lower points, and calculate the reading differences between the upper and lower points of the dial meter ΔL1. Then, at the four anchor screws of the motor, add ΔL1/2+(0.10~0.15) mm thick gaskets, of which 0.10~0.15mm It is an experience value, used to compensate for the

  August 12, 2025