Article List
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How to judge whether a ZD30-4.5-I soft tooth surface reducer needs to be modifiedTo determine whether the ZD30-4.5-I soft tooth surface reducer needs to be modified, a comprehensive evaluation must be combined with its technical characteristics and actual operating conditions. The following are the specific basis and methods for judgment: 1. Assessment based on gear wear and damage Tooth surface wear When the tooth thickness wear of the soft tooth surface gear exceeds 20% of the original tooth thickness, replacement or modification needs to be considered. If the actual measured tooth thickness decreases by more than 10% compared to the original value (for example, the original tooth thickness is 10mm, the measured tooth thickness is ≤9mm), it is judged to be severely worn. Tooth surface damage typePitting corrosion: Dense pits (diameter >0.5mm) appear on the tooth surface and the area exceeds 30%. Gluing/Welding: The tooth surface adheres to high temperatures to form tear marks or welding lesions. Spinning: The hardened layer on the tooth surface falls off in chunks (area >10mm²). If any of the above damage occurs, it must be replaced or modified immediately. Tooth structure damageTooth root cracks, broken teeth or gear deformation (tooth direction deviation>0.1mm
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What are the risks in modifying the ZD40-3.55-I soft tooth surface gear reducer?For the modification of the ZD40-3.55-I soft tooth surface gear reducer, the risk needs to be assessed based on its soft tooth surface characteristics (tooth surface hardness ≤350HB) and the specific modification plan. The following are the main risk points and response suggestions: 1. Adding a reduction stage (structural optimization) Core risks: Space interference: The new reduction stage needs to extend the axial length (single stage is about 150-200mm), which may exceed the original equipment installation space, resulting in collision with motors, rollers and other components. Torque distribution imbalance: If the speed ratio distribution is unreasonable (for example, the single-stage speed ratio is still too high), it may not be able to effectively reduce the force on the gear, or even increase the bearing load due to the weight of the new components. Compatibility issues: If the new shaft system and housing do not match the old parts (such as shaft diameter differences, seal failure), it may easily cause oil leakage or vibration. Recommendations: Accurately measure the installation space and give priority to the split shell extension. Calculate new teeth according to 'allowable torque'
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What is the normal service life of the WPWDK135-60-A worm gear reducer bearings?The normal service life of the WPWDK135-60-A worm gear reducer bearing is 20,000 to 30,000 hours (about 2.3 to 3.4 years, calculated based on 8,760 hours of continuous operation per year). The actual service life is greatly affected by factors such as working conditions and maintenance. 1. The core of the life reference is based on the fact that the supporting bearings of this type of reducer are mostly deep groove ball bearings or tapered roller bearings (adapted to 135 machine base, medium and heavy load conditions). The theoretical life corresponding to the rated dynamic load under industrial standards is about 30,000 hours. The manufacturer's design life is based on 'rated load, rated speed, and standardized lubrication.' If the actual working conditions are close to the design values, the life can reach 25,000 to 30,000 hours; if the working conditions are severe, the life will be shortened to less than 20,000 hours. 2. Lubrication conditions, the key factors affecting life: use suitable lubricants (such as ISO VG220
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What types of cooling devices are used in the arc gear reducer lubrication and cooling system?There are four core types of cooling devices in the arc gear reducer lubrication and cooling system. The core conclusion is: mainly including air-cooling, water-cooling, oil cooling (forced cooling) and natural cooling, which need to be based on the working condition temperature, speed, etc. Selection. 1. The air-cooled cooling device relies on forced air blowing by a fan to take away the heat of the lubricating oil through the heat sink. It has a simple structure and does not require additional cooling medium. It is suitable for working conditions with medium and low speeds and low heat generation. It is easy to install and maintain and has low cost. 2. The water-cooled cooling device uses cooling water circulation to exchange heat with the lubricating oil through the cooler (tube type or plate type), and has high cooling efficiency. It is suitable for high-speed, heavy-load, and high-heat scenarios. It needs to be equipped with a water supply system and be careful to prevent scale blockage. 3. Oil cooler (forced cooling device) is an independent refrigeration equipment that cools lubricating oil through compressors, condensers, etc., and has high temperature control accuracy. For harsh working conditions of high temperature and continuous operation, it can stably control the oil temperature within the set range.
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How to correctly install the clamping ring of P2SA29 planetary reducerThe correct installation of the clamping ring of the P2SA29 planetary reducer must follow the principles of 'precise centering, uniform force, and standardized locking' to avoid shafting wear or power transmission failure due to installation deviation. The specific steps and precautions are as follows: 1. Preparation for cleaning and inspection before installation. Wipe the inner hole of the clamping ring, the outer surface of the reducer input shaft, and the surface of the motor output shaft with absolute alcohol or special detergent to ensure that there are no impurities such as oil, rust, burrs, etc. (impurities will cause abnormal fit clearance and intensify vibration). Check whether the clamping ring is cracked or deformed, and whether the set screw thread is intact. If there is any damage, replace it with a new one immediately (the clamping ring is mostly made of high-strength alloy, and slight deformation will also affect the locking effect). Confirm the fit size and check whether the inner hole diameter of the clamping ring matches the outer diameter of the motor shaft and reducer input shaft (usually a transition fit or a small clearance fit). If the clearance is too large, it will easily slip, and if it is too small, it may cause the shaft system to get stuck. 2. Pre-installation steps
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How to judge the installation conditions of P2SA30 planetary reducerTo judge the installation conditions of the P2SA30 planetary reducer, we can start from the four core dimensions of the installation environment, mechanical coordination accuracy, load and operating parameters, and installation structure form, combined with the general installation standards of planetary reducers and equipment operation feedback for comprehensive judgment. The specific methods are as follows: 1. Check the temperature, humidity and corrosiveness of the installation environment working conditions: Use a thermohygrometer to measure the temperature of the installation area. Normal working conditions should be within - 20℃~45℃, relative humidity less than 85%; if it is in a food processing workshop, marine environment, etc., the humidity often exceeds the standard and there may be corrosive media, you need to check whether the protection level of the reducer reaches IP65 Above, are there any signs of rust on the outer casing? If it is in a chemical industry area, it is also necessary to observe whether there are corrosion spots on the casing to determine whether it is in corrosive working conditions. Dust and vibration interference: If it is installed in a mine, cement workshop, etc., and there is a large amount of dust around it, you can observe whether there is dust accumulation at the vents and gaps of the reducer.
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What impact does horizontality deviation have on the service life of the motor and ZDY200-1.4-2 reducer?Horizontal deviation will accelerate the wear of components of the motor and ZDY200-1.4-2 reducer, significantly shortening the overall service life of the equipment. The greater the deviation, the more obvious the life span will be attenuated. 1. Impact on the service life of the reducer. The gear life is greatly shortened. Horizontal deviation leads to uneven gear meshing, doubling the local contact stress, and accelerating tooth surface wear, pitting, and gluing. The normal service life can be shortened by 30%-60%. In severe cases, broken teeth may occur within a short period of time. Bearings fail prematurely. The tilt of the axis causes the bearings to bear additional radial forces and bending moments. The wear of the balls and raceways is intensified, and the grease is prone to deterioration and loss. The service life of the bearings is usually reduced to 20%-50% of the design value, and heating and jamming failures often occur. The aging of the casing and seals accelerates. Long-term uneven stress causes slight deformation of the reducer casing. The seals harden and crack prematurely due to vibration and abnormal stress. Lubricating oil leaks occur frequently, further aggravating the wear of internal components. 2. To the motor
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How to prevent vibration of motor and ZDY250-2.5-1 reducerTo prevent vibration of the motor and ZDY250-2.5-1 reducer, we need to start from three aspects: 'basic calibration + component maintenance + operation monitoring'. The core is to control the level and coaxiality to eliminate the source of vibration. 1. Accurately calibrate basic parameters (core preventive measures). Strictly control the level. Calibrate the base and axis of the motor and reducer according to the standard of ≤0.05mm/m to avoid vibration caused by uneven force. To ensure that the coaxiality reaches the standard, use a laser alignment instrument or feeler gauge to detect the coupling to ensure that both radial and angular deviations are ≤0.1mm to reduce transmission shock and vibration. Fix the base firmly, and tighten the anchor bolts evenly to the specified torque. If necessary, install anti-loosening washers to prevent loosening during operation of the equipment and amplification of vibration. 2. Standardize the maintenance of key components, check the coupling regularly, and promptly replace aging and damaged elastic sleeves, plum blossom pads and other buffer parts to avoid vibration caused by rigid impact. Ensure lubrication is in place according to equipment requirements
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How to choose the motor model of WHC120-40-3 worm gear reducerWhen selecting the motor model of the reducer, the core is to match the rated input power, speed and installation conditions of the reducer. The specific steps and Selection suggestions are as follows: 1. Clarify the core matching parameters of the reducer. Rated input power: The rated input power of WHC120-40-3 is about 7.5KW (corresponding to an output torque of about 1200N.m). The motor power must be ≤ this value to avoid overload damage to the reducer. Adaptable speed: The recommended input speed of the worm gear reducer is 1450r/min (conventional 4-pole motor speed). When paired with a speed ratio of 40, the output speed is about 36r/min, which meets the needs of most medium and low-speed working conditions. Installation interface: Confirm the input shaft diameter of the reducer (normally 18-22mm) and keyway size, and the motor output shaft needs to match it, or adapt it through a coupling. 2. Core points of motor model Selection 1. Power Selection: 7.5KW motor (full equipped with reducer rated
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How to adjust the level of the motor and ZDY160-2-11 reducerTo adjust the level of the motor and the ZDY160-2-11 reducer, you need to follow the process of 'detecting deviation → step-by-step adjustment → review and fixation', focusing on ensuring that the base and axis are bi-level and coaxial. 1. Before adjustment, prepare to clean the equipment base and installation surface, remove oil dirt, debris and bulges, and ensure that the contact surface is smooth and free of gaps. Check whether the anchor bolts and pads are intact, and prepare tools such as a level (recommended 0.02mm/m frame or electronic level), adjustment pads, thin steel sheets, and torque wrenches. Preliminarily fix the equipment, do not tighten the anchor bolts temporarily, and leave room for adjustment. 2. Step-by-step adjustment operation: First calibrate the level of the reducer, place the level on the base plane of the reducer and the end face of the input shaft, and detect the longitudinal and transverse levels respectively. Correct the reducer deviation by increasing or decreasing the adjustment horn or tapping the precision inclined horn until the level bubble is centered (or the electronic level displays a deviation of ≤0.02mm/m).