Lubricant transfer arrangement for a lubricant supply of a transmission

Patent metadata

Field	Value
Publication number	US-12473948-B2
Application number	US-202319099289-A
Country	US
Kind code	B2
Filing date	Aug 1, 2023
Priority date	Aug 23, 2022
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A lubricant transfer arrangement for a lubricant supply for a transmission includes an outer transmission component, an inner transmission component rotatable relative to the outer transmission component and a plain bearing supporting the outer transmission component on the inner transmission component. A lubricant pocket is formed between the outer transmission component or the inner transmission component and the plain bearing, and a lubricant channel is designed to lead through the outer transmission component, the plain bearing and the inner transmission component to supply a transmission element to be lubricated provided at a downstream end of the lubricant channel. The lubricant channel runs past the lubricant pocket. A leakage groove is formed between the outer transmission component or the inner transmission component and the plain bearing to fluidically connect the lubricant channel to the lubricant pocket.

First claim

The invention claimed is:

1 . A lubricant transfer arrangement for a lubricant supply for a transmission, the lubricant transfer arrangement comprising:
an outer transmission component; an inner transmission component rotatable relative to the outer transmission component; a plain bearing supporting the outer transmission component on the inner transmission component; a lubricant pocket formed between the outer transmission component or the inner transmission component and the plain bearing; a lubricant channel designed to lead through the outer transmission component, the plain bearing and the inner transmission component to supply a transmission element to be lubricated provided at a downstream end of the lubricant channel, said lubricant channel running past the lubricant pocket; and a leakage groove formed between the outer transmission component or the inner transmission component and the plain bearing to fluidically connect the lubricant channel to the lubricant pocket.

2 . The lubricant transfer arrangement of claim 1 , wherein the leakage groove has in a radial direction a leakage gap height which is greater than a bearing gap height between the outer transmission component or the inner transmission component and the plain bearing.

3 . The lubricant transfer arrangement of claim 1 , further comprising a connecting channel leading into the lubricant pocket and fluidically connected to a lubricant source for feeding lubricant into the lubricant pocket and/or to a lubricant drain for discharging lubricant originating from the lubricant channel.

4 . The lubricant transfer arrangement of claim 1 , wherein the plain bearing comprises a radially projecting collar for axial abutment against the outer transmission component or against the inner transmission component.

5 . The lubricant transfer arrangement of claim 4 , wherein the collar covers a closure and/or a sealing element for an axially facing opening in a section of the lubricant channel.

6 . The lubricant transfer arrangement of claim 4 , wherein the collar covers an axially facing opening in a section of the lubricant channel and forms a further section of the lubricant channel that communicates with the section.

7 . The lubricant transfer arrangement of claim 4 , wherein the collar covers an axially facing opening in a connecting channel which communicates with the lubricant pocket and is formed separately from the lubricant channel, said collar forming a further connecting channel which communicates with the connecting channel.

8 . The lubricant transfer arrangement of claim 1 , further comprising:
at least two of said lubricant pocket which are formed axially one behind the other, said lubricant channel being led axially between the at least two lubricant pockets; and at least two of said leakage groove designed to lead away in different axial directions from the lubricant channel, said lubricant channel being fluidically connected to the at least two lubricant pockets via the at least two leakage grooves, respectively.

9 . The lubricant transfer arrangement of claim 1 , wherein the leakage groove, leads away from the lubricant channel only in one axial direction, said lubricant pocket, being formed in particular only in exactly one axial region.

10 . The lubricant transfer arrangement of claim 1 , wherein the leakage groove runs predominantly vertically.

11 . The lubricant transfer arrangement of claim 1 , wherein the outer transmission component or the inner transmission component is designed as a fixed transmission housing part.

12 . A vertical transmission, comprising:
a lubricant transfer arrangement comprising an outer transmission component, an inner transmission component rotatable relative to the outer transmission component, a plain bearing supporting the outer transmission component on the inner transmission component, a lubricant pocket formed between the outer transmission component or the Inner transmission component and the plain bearing, a lubricant channel designed to lead through the outer transmission component, the plain bearing and the inner transmission component to supply a transmission element to be lubricated provided at a downstream end of the lubricant channel, said lubricant channel running past the lubricant pocket, and a leakage groove formed between the outer transmission component or the inner transmission component and the plain bearing to fluidically connect the lubricant channel to the lubricant pocket; and a substantially vertically oriented shaft forming the inner transmission component or the outer transmission component of the lubricant transfer arrangement.

13 . The vertical transmission of claim 12 , wherein the shaft is connected for conjoint rotation to a planet carrier of a planetary transmission.

14 . An industrial application, comprising a transmission, said transmission comprising a transmission element to be lubricated and a lubricant transfer arrangement for conveying lubricant to the transmission element, said lubricant transfer arrangement comprising an outer transmission component, an inner transmission component rotatable relative to the outer transmission component, a plain bearing supporting the outer transmission component on the inner transmission component; a lubricant pocket formed between the outer transmission component or the inner transmission component and the plain bearing; a lubricant channel designed to lead through the outer transmission component, the plain bearing and the inner transmission component to supply the transmission element provided at a downstream end of the lubricant channel, said lubricant channel running past the lubricant pocket, and a leakage groove formed between the outer transmission component or the inner transmission component and the plain bearing to fluidically connect the lubricant channel to the lubricant pocket.

15 . A data agglomerate, comprising data packets combined in a common file or distributed among different files for depicting a three-dimensional design and/or interactions of all constituent parts comprising the lubricant transfer arrangement of claim 1 , said data packets being stored on a non-transitory computer-readable data storage medium so as to carry out, during processing by a data processing device, additive manufacturing of the constituent parts of the lubricant transfer arrangement, in particular by 3D printing, and/or a simulation of the functioning of the lubricant transfer arrangement.

16 . The lubricant transfer arrangement of claim 2 , wherein the bearing gap height between the outer transmission component or the inner transmission component and the plain bearing is 1.01≤H/h≤2.00, with H being the leakage gap height and h being the bearing gap height.

17 . The lubricant transfer arrangement of claim 2 , wherein the bearing gap height between the outer transmission component or the inner transmission component and the plain bearing is 1.10≤H/h≤1.75, with H being the leakage gap height and h being the bearing gap height.

18 . The lubricant transfer arrangement of claim 2 , wherein the bearing gap height between the outer transmission component or the inner transmission component and the plain bearing is 1.25≤H/h≤1.50, with H being the leakage gap height and h being the bearing gap height.

19 . The lubricant transfer arrangement of claim 10 , wherein at least part of the lubricant from the lubricant channel is conveyable through the leakage groove in a gravity-assisted manner.

Assignees

• Flender Gmbh

Inventors

• Höbing Mathias
• Prusak Robert

Classifications

• F16H57/0471

  Bearing · CPC title

• F16H57/0426

  Means for guiding lubricant into an axial channel of a shaft · CPC title

• F16C33/1065

  Grooves on a bearing surface for distributing or collecting the liquid · CPC title

• B02C15/006

  Ring or disc drive gear arrangement · CPC title

• F16C33/103

  retained in or near the bearing · CPC title