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Four precautions for structural design of reducer
The reducer is a separate part for speed reduction between the prime mover and the working machine. It is generally made into a closed transmission device. The transmission parts, shafts, bearings, etc. are installed in a cast iron or welded box, which is called a reducer or a reduction box. .
There are many types of reducers, such as involute cylindrical gear reducers, double arc cylindrical gear reducers, cycloid pin wheel reducers, NGW planetary gear reducers, three-ring reducers, arc cylindrical worm reducers, etc. The standard reducer should be selected first in the design to facilitate the design, manufacture, repair and replacement.
When the applicable standard reducer cannot be selected, a special reducer should be designed. The main issues that should be considered when designing are: transmission type, transmission layout, transmission parameter design, design of transmission parts, supports and cabinets, etc. Lubrication and sealing design and heat dissipation, etc. You can also optimize the design to improve the design quality.
Due to the use of hard-tooth gears and the continuous improvement of design and manufacturing technology, the same power and reduction ratio are transmitted, and the size of the reducer is continuously reduced, so the heat dissipation problem is becoming more and more prominent. You should refer to the technical file of gear thermal power calculation.
Regarding the structure design of the reducer, it is reminded to pay attention to the following issues:
1) The overall design and selection of the reducer.
2) Reasonable design of non-standard reducer.
3) Reducer box design.
4) Reducer lubrication and heat dissipation.
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