Drilling machine reducer

The excavator reducer is used for low-speed and high-torque transmission equipment. Its principle is to use the input shaft of the excavator reducer with fewer teeth to mesh with the large gear on the output shaft, thereby achieving the purpose of deceleration. The ratio of the number of teeth of the large and small gears is the transmission ratio.

The excavator reducer is an independent component composed of gear transmission, worm gear transmission, and gear-worm gear transmission enclosed within a rigid housing. It is commonly used as a reduction transmission device between the driving component and the working machine! 

There are many types of reducer for tunnel boring machines, such as involute cylindrical gear tunnel boring machine reducer, double circular arc cylindrical gear tunnel boring machine reducer, cycloidal pinwheel tunnel boring machine reducer, NGW type planetary gear tunnel boring machine reducer, three-ring tunnel boring machine reducer, and circular arc cylindrical worm gear tunnel boring machine reducer, etc. In the design, standard tunnel boring machine reducers should be selected first, which is convenient for design, manufacturing, repair and replacement. 

When no suitable standard tunneling machine reducer is available, a dedicated tunneling machine reducer should be designed. During the design process, the main issues to be considered include: transmission type, transmission layout, transmission parameter design, design of transmission components, supporting components and the box body, lubrication and sealing design, and heat dissipation, etc. Optimization design can also be carried out to improve the design quality. 

Due to the use of hard toothed gears and the continuous improvement of design and manufacturing techniques, when transmitting the same power and with the same reduction ratio, the size of the tunneling machine reducer keeps decreasing. Therefore, the problem of heat dissipation has become increasingly prominent. It is necessary to refer to the technical documents for calculating the heat power of gears.