Planet carrier and planet gear box

Abstract

The invention relates to the technical field of planet gears, and discloses a planet carrier and a planet gear box. The planet carrier comprises a first center plate, a second center plate, multiple stand columns and a shaft neck. The second center plate and the first center plate are oppositely arranged in a spaced mode, a boss is arranged on the side face, away from the second center plate, of the first center plate, an oil spraying hole is formed in the boss and used for spraying lubricating oil to a bearing, the multiple stand columns are arranged at intervals, the two ends of each stand column are connected to the first center plate and the second center plate correspondingly, the shaft neck is connected to the side face, away from the second center plate, of the first center plate, and the shaft neck is rotationally connected to a box body of the planet gear box through the bearing. By means of the structure, the planet carrier is high in strength and high in bearing capacity.

Description

technical field [0001] The invention relates to the technical field of planetary gears, in particular to a planetary carrier and a planetary gear box. Background technique [0002] In wind turbines, since the speed of the wind rotor is very low, it is far below the speed required by the generator for power generation. It is necessary to increase the speed of the planetary gearbox to make the generator obtain the corresponding speed. The planetary gearbox is an important Core components play a vital role in wind power equipment. [0003] Among them, the planetary carrier is one of the main force transmission components in the planetary gear, and usually the planetary carrier is installed on the planetary gearbox through bearings. Such as figure 1 As shown, in order to make the rotation of the planetary carrier 100 smooth and prolong the service life of the bearing, the planetary carrier 100 is usually provided with an oil injection hole 200 for injecting oil to lubricate th...

AI Technical Summary

Problems solved by technology

However, due to the influence of the position of the bearing, the position of the oil injection hole 200 cannot be adjusted arbitrarily, and it must be located at the position where the lubricating oil can be sprayed into the gap between the outer ring and the inner ring of the bearing.

Since the position where the oil injection hole 200 is opened often has obvious stress concentration, and the oil injection hole 200 is located on the force transmission path of the planet carrier 100, the structural strength of the planet carrier 100 is reduced, and the bearing capacity of the planet carrier 100 is reduced.

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