Article List
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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
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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
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In addition to the grinding process, what other methods can improve the accuracy of the reducerIn 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
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Solution when the load torque exceeds the rated load of the reducer by S67D112M84-1.5-26.93When 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
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How to use a dial meter to ensure the concentricity of the transmission shaft of the ZSY250-35.5-5.5KW reducerUse 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
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How to determine whether the concentricity of the transmission shaft of the ZSY250-40-IS reducer meets the requirementsTo determine whether the concentricity of the transmission shaft meets the requirements, a comprehensive evaluation is mainly based on relevant standards and specifications and actual measurement data. The following is the specific judgment method: Refer to the equipment technical document: Different equipment has different requirements for the concentricity of the transmission shaft. Generally, the allowable concentricity deviation range will be clearly given in the equipment installation instructions, technical specifications or design drawings. For example, ZSY250 reducer, its technical documents may specify that the allowable radial jump between the transmission shaft and the reducer shaft is ±0.05mm, and the allowable axial rush momentum is ±0.1mm. During the installation and commissioning process, these specified values should be strictly determined to determine whether the concentricity meets the requirements. Use a measurement tool to detect the measurement of the dial meter: As mentioned above, use the dial meter to rotate around the circumference of the drive shaft for one week, and record the maximum and minimum readings of the pointer. The difference between the two is the radial jump value of the drive shaft. If this value is on the device
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Introduce the heat dissipation method of industrial gearboxesNatural heat dissipation: Rely on the surface area of the gearbox shell to exchange heat with the surrounding air to dissipate heat. This method is simple, low-cost, but has limited heat dissipation effect. It is suitable for gearboxes with small power and low heat generation. To improve natural heat dissipation effect, heat dissipation ribs are usually designed in the gearbox housing to increase the heat dissipation area. Fan heat dissipation: Install a fan on the gearbox, and force the air to flow through the fan, taking away the heat from the surface of the gearbox. The fan can be a separate electric fan or a centrifugal fan connected to the gear box shaft, which drives the fan to rotate by the rotation of the gear box. Fan heat dissipation is better than natural heat dissipation, which can effectively reduce the oil temperature of the gearbox. Suitable for medium power gearboxes, it is more common in some outdoor installed gearboxes. Cooler heat dissipation: For gearboxes with high power and high heat generation, coolers are usually used to dissipate heat. Coolers are divided into air-cooled and water-cooled. Air-cooled cooler
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Features and principles of LF42/LF47/LF50/LF60/LF70/LF77/LF80 cooling tower fan reducerLF80 cooling tower fan reducer is a device commonly used in cooling towers. It is mainly used to reduce the speed of the fan to meet the operating needs of the cooling tower. Features: High efficiency and energy saving: Adopt advanced design and manufacturing processes, high transmission efficiency, and can effectively reduce energy consumption. Compact structure: The reducer has a compact structure design, small space, and is easy to install and maintain. Stable operation: It uses high-quality gears and bearings, and has been precision machining and assembled, and has smooth operation and low noise. High reliability: The key components of the reducer are made of high-strength materials, which have high strength and wear resistance, and can ensure long-term and stable operation. Convenient maintenance: The reducer has simple structure, convenient maintenance, and is easy to disassemble and assemble. Working principle Power input: The power input shaft of the reducer is connected to the motor or other power source to receive the power input. Gear transmission: Power is transmitted to the gear system inside the reducer through the gears on the input shaft, through multi-stage gears
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The difference between performance parameters of cycloid pinwheel reducer and worm gear reducerHigh-speed ratio and high efficiency of cycloid pin wheel reducer: Single-stage transmission can achieve a reduction ratio of 1:87, with an efficiency of more than 90%. If multi-stage transmission is used, the reduction ratio is greater. Stable operation and low noise: the cycloid needle teeth have a large number of meshing teeth, a large overlap coefficient, and a mechanism of mechanical balance, so that vibration and noise are limited to the minimum degree. Reliable use and long service life: Because the main parts are made of high-carbon chromium steel, they are quenched (HRC58~62) to obtain high strength, and some transmission contacts use rolling friction, so they have a long durable life. Large torque output: It can output large torque, suitable for equipment that requires large torque drive. Small backlash and backlash: Usually output from the surface, the backlash and backlash are very small, and the imported ones can usually be controlled within 10 arc minutes. The transmission ratio of the worm gear reducer is large: a large reduction ratio can be achieved, generally between 10-80, and can reach a maximum of more than 100.
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The difference between structural characteristics of cycloid pinwheel reducer and worm gear reducerCycloid pin wheel reducer and worm gear reducer are both commonly used mechanical transmission devices. They have some differences in their structural characteristics, as follows: The structural characteristics of the cycloccipitor pin wheel reducer are compact in structure: using planetary transmission principle, the input shaft and output shaft are on the same axis line, so that its model can obtain the smallest size possible. Small number of parts: mainly composed of eccentric sleeves, cycloid wheels, needle gears, output shafts and other parts, and the structure is relatively simple. Rolling friction is adopted: the meshing between the cycloid wheel and the needle gear is rolling friction, which reduces wear and improves transmission efficiency and service life. The structure of the worm gear and worm reducer is complex: it is mainly composed of worm gear, worm gear, shaft, bearing, box and its accessories. There are many parts: In addition to worm gears and worms, they also include shafts, bearings, boxes, end covers, oil seals and other parts. Sliding friction: The meshing between the worm gear and the worm is a sliding friction, which is easy to produce wear and heat, and requires good lubrication.