1. Failure causes and assessment Under long-term high-load operation of the crane, the bearing seat of the cycloid reducer often wears, heats or even breaks due to poor lubrication, vibration shock or improper maintenance. Before repair, the parts need to be thoroughly cleaned, and the wear amount and concentricity of the bearing seat hole must be accurately measured to formulate a repair plan based on this. 2. Traditional mechanical repair process For cast steel shells, a partial replacement method can be used: after surveying and mapping, a high-strength new bearing seat is processed, the old seat is turned away and the interface is machined, the new seat is connected through threads and then the reinforcing ribs and interfaces are welded, and finally finished to the design size. If the inserting method is used, the seat hole needs to be bored by 8-10mm, a cast steel insert with an interference fit must be pressed in, and then finished. Although the traditional process has good impact resistance, the process is complex and the cycle is long, and welding is prone to thermal stress deformation and cracks. 3. Polymer material repair technology For on-site emergency repairs, the polymer composite repair method has significant advantages. First, oil, polish and polish the worn surface. Read More

As the core component of the industrial transmission system, the planetary reducer has a fracture problem of its output shaft or input shaft that will directly cause the equipment to shut down and seriously affect production efficiency. To completely solve the problem of broken shafts, it is necessary to carry out systematic investigation and prevention from three dimensions: scientific inspection, standardized installation and daily maintenance. First of all, scienceSelection is the fundamental prerequisite to avoid axis breakage. In actual applications, some broken shafts are caused by Selection errors, resulting in the 'small horse pulling a large cart' phenomenon. Many users only focus on the power of the motor when Selection, but ignore the torque demand in actual working conditions. The correct Selection must be accurately converted through the formula: the actual required torque should be less than 2 times the rated output torque of the reducer, and a safety factor of 1.5 to 2 times should be reserved. In addition, if the equipment undergoes frequent acceleration, deceleration or emergency braking during operation, the instantaneous impact torque can easily exceed the bearing limit of the shaft. In this case, a reducer with larger torque margin or stronger load-bearing capacity must be selected. Read More

1. Gear design and modification optimization The gear is the core transmission component of the reducer, and its design and manufacturing accuracy directly determines the noise level. Improve gear accuracy: Use high-precision gear grinding technology to strictly control tooth shape errors, tooth pitch errors, etc. Studies have shown that gears with small errors in tooth shape and tooth surface roughness can produce noise that is more than 10 decibels lower than ordinary gears. Implement gear tooth modification: Conscious micro-modification of the tooth surface is a key means of reducing noise. Tooth profile modification: Modifying the tooth top or tooth root can effectively reduce the impact vibration of the gear teeth at the moment of meshing in and out, and reduce the dynamic load. Tooth direction modification: Improve the distribution of load along the tooth width direction through drum modification or curved surface modification to avoid excessive local stress and increase in noise caused by unbalanced load. Optimize gear parameters: improve gear overlap (such as using helical gears instead of spur gears), increase tooth width to improve rigidity, or consider using cast iron or plastic gears with higher damping rates under light load and low speed conditions Read More

Lathes are precision processing equipment, and the installation accuracy of their reducers directly determines the final quality of the processed parts. Among them, 'inaccurate alignment' is indeed the 'number one killer' that leads to reduced equipment accuracy and abnormal wear of components. The following is a full analysis of the installation points of lathe reducers, focusing on alignment and calibration. 1. Core pain point: The fatal hazard of misalignment is poor alignment, that is, there is parallel deviation, angular deviation or end face deviation between the input/output shaft of the reducer and the motor shaft/load shaft. On high-precision equipment such as lathes, seemingly small deviations will bring about a series of chain reactions: loss of processing accuracy: axis deviation will directly lead to a significant attenuation of equipment positioning accuracy and repeated positioning accuracy, making it unable to meet the requirements of precision turning. Accelerated wear of components: Uneven transmission load causes gear meshing deviation, local stress concentration on the tooth surface, and accelerated gear pitting and spalling. At the same time, bearings and oil seals will also increase wear and fatigue due to additional loads. Deterioration of operating status Read More

1. Paper slitting machines give priority to NMRV worm gear reducers, which have the strongest adaptability. Stable rewinding and unwinding tension is required during the slitting process of paper and paper tubes. The worm gear reducer has a self-locking feature, which can effectively prevent equipment shutdown, rewinding slippage during direction change, and loose materials, and perfectly solves the common web deviation problem in paper processing. 2. For heavy-duty slitting conditions of thick paper tubes and cardboard, it is recommended to use an R series helical gear reducer. This model has a larger carrying torque and strong impact resistance. When faced with high resistance when cutting thick materials, it has sufficient power output and will not suffer from jamming or insufficient power. It is suitable for heavy-duty paper product slitting equipment. 3. There is a lot of dust in the paper industry workshop, so dust protection should be focused on during use. Regularly clean the paper dust on the reducer vents and the surface of the box to prevent dust from entering the internal wear gears and bearings; shorten the lubricating oil replacement cycle to prevent dust from mixing into the lubricating oil and exacerbating the loss of accessories. 4. In addition, the start and stop of paper cutting equipment Read More

1. The first is the speed ratio, which is simply understood as the multiple of the speed reduction. Speed ​​ratio = motor speed ÷ reducer output speed, which directly determines the running speed of the slitting machine. High-speed film slitting machines are equipped with small speed ratio reducers to ensure sufficient speed; heavy-duty paper tube and thick material slitting machines are equipped with large speed ratio reducers to reduce speed and amplify torque to meet heavy-load cutting needs. 2. The second is torque, which determines the cutting power of the reducer. The greater the torque, the stronger the cutting resistance and the higher the load capacity of the equipment. When processing thick materials, hard materials, and large coiled materials, a high-torque reducer must be selected, otherwise there will be inability to cut and stalling. For light materials, regular torque can be selected to avoid excess power and waste of energy. 3. The last step is to match the power. The reducer power must match the motor power. If the power is too small, the reducer will be overloaded and burned out frequently; if the power is too large, resources will be wasted. Conventional slitting machines can be matched 1:1 according to the motor power, and it is recommended to reserve them for heavy load conditions. Read More