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Combined rolling and sliding supporting device for gearbox shaft

一种传动装置、浮动轴承的技术，应用在传动装置零件、轴和轴承、滑动接触轴承等方向，能够解决滑动轴承昂贵等问题

Active Publication Date: 2016-07-27
ZF FRIEDRICHSHAFEN AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plain bearings, which can accommodate forces in both radial and axial directions, are very expensive

Method used

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  • Combined rolling and sliding supporting device for gearbox shaft

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] exist figure 1 On the right side of the illustration, the intermediate shaft 1 is supported by a fixed bearing. The fixed bearing is composed of a first tapered roller bearing 2 and a second tapered roller bearing 3 .

[0018] On the left side of the figure, the intermediate shaft 1 is supported by means of a floating bearing, which is formed by a slide bearing 4 . In addition, the intermediate shaft 1 has a gear 5 . another in figure 1 The gear wheel not shown in is fixed on the shaft support 6 by means of the keyway 7 . In the axial direction, the individual elements are arranged on the intermediate shaft 1 as follows (ie in figure 1 middle left to right):

[0019] Sliding bearing 4, shaft seat 6, gear 5, first tapered roller bearing 2 and second tapered roller bearing 3.

[0020] In the axial direction, the first tapered roller bearing 2 and the second tapered roller bearing 3 are fixed between a projection 8 in the transmission housing 9 and a bearing cap 10 s...

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PUM

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Abstract

The invention relates to a gearbox shaft (1), in particular a gearbox shaft provided for a wind turbine, said shaft being mounted by means of a fixed bearing (2, 3) and at least one floating bearing (4), said shaft comprising at least one gear (5) that is arranged radially between the fixed bearing (2, 3) and the floating bearing (4) and is secured to the gearbox shaft (1). The fixed bearing (2, 3) is formed by at least one anti-friction bearing. According to the invention, the floating bearing (4) is formed by at least one plain bearing.

Description

technical field [0001] The invention relates to a supporting device for a shaft of a transmission device, in particular to a supporting device for a shaft of a transmission device of a wind power generating set. Background technique [0002] For supporting the shafts of the spur gear stages of the transmission of wind turbines, fixed-floating bearings are common. The fixed bearing as well as the floating bearing form a rolling bearing here. The fixed bearings for absorbing radial and axial forces here consist of adjusted pairs of tapered roller bearings. They can be preloaded to avoid slippage and black spots. As floating bearings, cylindrical roller bearings are usually used. It operates without preload. Therefore, especially cylindrical roller bearings are vulnerable to damage. [0003] A possibility for supporting the shaft more firmly against damage is plain bearings. Solutions are therefore known for wind power plant transmissions in which all shafts of the spur g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/021
CPCF05B2240/50F05B2240/54F03D15/00F16C17/02F16C19/542F16C2361/61F16H57/021F16C21/00F16C2360/31Y02E10/72F03D80/70F16H2057/0216
Inventor 德克·莱曼米希尔·范登多恩克尔蒂诺·基施纳
Owner ZF FRIEDRICHSHAFEN AG
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