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Cage planet carrier for a speed-reducing unit with an epicyclic gear train

A technology of epicyclic gear train and deceleration unit, which is applied in the direction of belt/chain/gear, gear transmission, gear lubrication/cooling, etc. It can solve the problems of limiting the service life and large volume of the impeller, and achieve the effect of reducing the axial volume

Active Publication Date: 2019-12-24
HISPANO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the prior art cage planet carrier is relatively bulky in the axial direction
Furthermore, the impeller arranged on the cage of the planetary carrier is subject to wear phenomena at the interface of this impeller with other components, which limits the service life of the impeller

Method used

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  • Cage planet carrier for a speed-reducing unit with an epicyclic gear train
  • Cage planet carrier for a speed-reducing unit with an epicyclic gear train
  • Cage planet carrier for a speed-reducing unit with an epicyclic gear train

Examples

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Embodiment Construction

[0029] has been described above figure 1 and figure 2 .

[0030] image 3 Shown is a planet carrier 130 with a reduction gear of an epicyclic gear train for an aircraft turbine engine. The planet carrier 130 is a planet carrier of the cage type 134 , the cage comprising two coaxial annular walls 136 , 138 and connected to the periphery of the annular walls by a cylindrical wall 140 .

[0031] The annular wall 136 is secured to a partially visible substantially cylindrical body 142 comprising engagement means for engaging a shaft, such as a fan shaft of a turbine engine. The coupling means are for example longitudinal slots of the type found in figure 1 visible in .

[0032] In the example shown, the cylindrical wall 140 is perforated and includes through holes 143 in radial direction.

[0033] The wall 138 comprises a central opening 144 centered on the axis A and a series of orifices 146 regularly distributed around the axis A, through which the openings 144 and the or...

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PUM

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Abstract

A planet carrier (130) for a speed-reducing unit with an epicyclic gear train for a turbine engine is disclosed, said planet carrier comprising a cage (134) defining an internal space for assembling acentral sun gear (151) having an axis A of rotation and an annular row of planet gears (150) disposed around the axis A and meshed with said sun gear, said cage comprising two substantially parallelannular walls (136, 138) centered on said axis A and a cylindrical wall (140) connecting said annular walls to their outer periphery, a first one (136) of said annular walls being connected to a substantially cylindrical body (142), characterized in that a second one (138) of said annular walls is formed as a single part with lubrication means (158).

Description

technical field [0001] The invention relates in particular to a planet carrier for a reduction unit with an epicyclic gear train, the planet carrier comprising a cage for receiving the sun gear and the planet gears of the reduction gear. Background technique [0002] The prior art includes in particular the document US-A1-2015 / 0247566. [0003] A reduction unit with an epicyclic gear train for an aircraft turbine engine typically includes a sun gear coupled to a first shaft and a ring gear extending around the sun gear. The planet gears are disposed between the sun gear and the ring gear and mesh together and are carried by a planet carrier coupled to the second shaft. [0004] There are many types of planet carriers. figure 1 The cantilevered impeller planet carrier 10 described in application FR-A1-3 036 763 is shown. The planet carrier 10 comprises a cylindrical body 12 intended to be coupled to a second shaft and connected by longitudinal ends to an annular wall 14 fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F16H57/08
CPCF16H57/082F16H57/043F16H57/0431F16H57/0471F16H57/0479F16H57/0486F05D2220/323F05D2260/40311F05D2260/98F16C2361/61F16H1/28F16H2057/085
Inventor 让-查尔斯·米歇尔·皮埃尔·迪乔凡尼亚力克西斯·克劳德·米歇尔·东贝克
Owner HISPANO