Planet carrier and planet gear case with planet carrier

Abstract

The invention provides a planet carrier and a planet gear case with the planet carrier and belongs to the technical field of lubrication of the planet gear case. The planet carrier is used for assembling a planet gear between a sun wheel and an inner gear ring to form a planet gear-sun wheel gear pair and a planet gear-inner gear ring gear pair, the planet carrier and the planet gear synchronouslyrotate around the sun wheel, and the planet carrier comprises a first radial plate, a second radial plate and a connection column which is fixedly connected with the first radial plate and the secondradial plate; at least a first oil channel is formed in the connection column; the axis of the first oil channel is arranged to face the planet gear-inner gear ring engaging-out region of the planetgear-inner gear ring gear pair, and the first oil channel is used for jetting lubricating oil to the planet gear-inner gear ring engaging-out region. The planet gear case with the planet carrier can achieve the effect that the planet gear-inner gear ring engaging-out region is cooled along with the lubrication oil, and the lubrication and cooling effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of lubrication of planetary gearboxes, and relates to follow-up injection lubrication for the planetary gear-ring gear meshing area in a planetary gearbox, and in particular to a device for spraying to the planetary gear-ringing gear meshing area. A planetary carrier of an oil passage for lubricating oil and a planetary gearbox including the planetary carrier. Background technique [0002] A planetary gearbox (or "planetary gearbox") is a gearbox with a planetary gear transmission pair. Because the planetary gears in it can generate power split, the planetary gearbox can be applied in the scene of low speed and heavy load in, for example, wind power plants. Therefore, the meshing force of the planetary stage gear pair is large, and the instantaneous temperature rise during meshing is high, so it is necessary to set up a corresponding lubrication system to lubricate and cool key components such as the planet...

AI Technical Summary

Problems solved by technology

[0004] Many existing lubrication schemes adopt the design of intermittent lubrication. This is because during the working process, the planetary gear rotates and revolves, and the planetary gear-sun gear meshing area corresponding to the planetary gear-sun gear pair and The position of the planetary gear-ring gear meshing area corresponding to the planetary gear-ringing gear pair is constantly changing with the revolution of the planetary gear, so it is difficult to continuously align with the meshing area and follow the injection of lubricating oil

[0005] In the lubrication scheme disclosed in the Chinese patent application number CN200820100343.5 and the patent titled "Planetary Lubrication and Oil Supply Device for Wind Power Gearbox", it can realize follow-up lubrication for planetary bearings, follow-up lubrication for sun gear and ring gear, That is to say, the forced continuous lubrication of the planetary bearings, sun gear and ring gear is realized during the working process. However, the lubricating oil channel cannot directly inject lubricating oil to the planetary gear-sun gear meshing out area and the planetary gear-ringing gear meshing area. Therefore, its continuous lubrication does not act on the meshing area. In this way, the tooth surface will remain in the high temperature range for a long time after disengagement. Therefore, the cooling effect on the gear pair is not obvious, and the lubrication and cooling effect Difference

[0006] In the lubrication scheme disclosed by the Chinese patent application No. CN201220652307.6 and the patent titled "External Meshing Lubrication System of Gear and Planetary Gear System", although the continuous jet lubrication of the meshing area of ​​the planetary gear and the inner ring gear is also realized, but , it is impossible to realize the cooling and lubrication of the meshing area of ​​the planetary gear and the ring gear, especially the lubrication and cooling effect of the ring gear is poor

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