Planetary gear device

Abstract

The invention discloses a planetary gear device. The planetary gear device comprises a gear body. The gear body is provided with a flange. Gears are arranged on the periphery of the flange of the gear body. A left end inner hole and a right end inner hole are formed in the center of the flange of the gear body. A left end annular groove is formed in the position, on the flange of the gear body, of the left end of the left end inner hole. A right end annular groove is formed in the position, on the flange of the gear body, of the right end of the right end inner hole. A baffle ring is arranged between the left end inner hole and the right end inner hole and provided with evenly distributed baffle ring holes. A plurality of left end oil holes formed in the radial direction of the left end inner hole are formed in the wall, on the left side of the baffle ring, of the left end inner hole. A plurality of right end oil holes formed in the radial direction of the right end inner hole are formed in the wall, on the right side of the baffle ring, of the right end inner hole. All the left end oil holes and the right end oil holes communicate with the roots of teeth outside the gear body. The planetary gear device is good in lubricating and radiating performance, convenient to machine and mount and has quite high application and popularization value.

Description

technical field [0001] The invention relates to a gear, in particular to a planetary gear device. Background technique [0002] Planetary gears are widely used in various machinery. The main features of planetary gear transmission are small size, large load capacity and stable operation. However, the transmission structure of high-power high-speed planetary gear is more complex, requiring high manufacturing precision. Some types of planetary gear transmission have high efficiency, but the transmission ratio is not large. Other types can have large gear ratios but are less efficient. When they are used as speed reducers, their efficiency decreases with the increase of transmission ratio, and self-locking may occur when they are used as speed increasers. At the same time, the inner hole of the existing planetary gear needs to be processed many times, and the precision control is difficult. At present, the pressure angle of the planetary gear is 20°. Although the transmiss...

AI Technical Summary

Problems solved by technology

At the same time, the inner hole of the existing planetary gear needs to be processed many times, and the precision control is difficult

At present, the pressure angle of the planetary gear is 20°. Although the transmission efficiency is good, the disadvantage is that the planetary gear is easy to form an undercut phenomenon during use, the bending resistance and impact resistance of the planetary gear are weak, and the service life is short.

In addition, the existing planetary gears still have the disadvantages of poor lubrication and cooling effects, which have great limitations

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