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Flange connection

a technology of flanges and connections, applied in the direction of sheet joining, motors, wind energy generation, etc., can solve the problems of high surface machining expenditure, high cost, over-proportional increase, etc., and achieve the effect of reducing the cost and maintaining the quality of the connection

Inactive Publication Date: 2006-01-05
WOBBEN ALOYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The patent text describes a method for making a flange connection that is cost-effective and maintains the quality of the connection. The method involves using a layer between the flanges that can be decreased in viscosity and then increased in viscosity to compensate for surface roughness. The layer can be pre-applied on one of the flanges and can be of a lower viscosity during the connection process. The layer can be heated to change its viscosity and can be fixed in position using adhesive. The technical effects of this method include improved quality and efficiency of flange connections."

Problems solved by technology

They have to be machined in a particularly complicated and expensive fashion and precisely in order to achieve a sufficiently large and flat contact face.
In that respect in particular the expenditure involved for machining the surface is high and increases over-proportionally with an increasing size of the components to be machined.
The operation of applying the polymer is also affected manually and is thus labor-intensive.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0024]FIG. 1 shows two co-operating connecting portions 2, 4 of a flange connection 100 of two segments 102, 104 of a pylon structure 106. Those co-operating connecting portions 2, 4 are oriented towards each other with the abutment faces 3, 5 and are connected together by a screw connection 6 to form a force-locking connection. In order to compensate for surface roughnesses and unevenness of the abutment faces 3, 5 there is provided a layer 10 (shown enlarged in the Figure). That layer 10 is arranged between the co-operating connecting portions 2, 4 and is at least temporarily deformable. In that way the surface structure of the co-operating connecting portions 2, 4 at the abutment faces 3, 5 is exactly reproduced in the layer 10 so that it is certain to involve full-area contact.

[0025] As the layer 10 comprises a pressure-resistant material the transmission of force in that flange connection can now take place over the entire abutment faces 3, 5. In that case, the screw connectio...

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PUM

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Abstract

A method of connecting two flanges, in particular such flanges which are mounted to segments (rings) of a pylon of, for example, a wind power installation and connect said segments to each other, wherein the flanges are connected together in force-locking relationship. In one aspect, the method of connecting two flanges, wherein to connect the two flanges provided in the connecting region is a layer which in a first period of time prior to the connection and in a third period of time after the connection is less deformable than in a second period of time, wherein the second period of time is between the first and third periods of time.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention concerns a method of connecting two flanges mounted to segments (rings) of a pylon of a wind power installation together in force-locking relationship. [0003] 2. Description of the Related Art [0004] Flange connections have long been known in the state of the art and are universally employed. In that respect screws are frequently used as connecting means between the flanges, the screws providing a force-locking connection between the co-operating connecting portions. [0005] In that respect the quality of such a flange connection, besides being dependent on a careful choice of material and faultless implementation of the assembly procedure, is also dependent on the surface of the abutment faces. They have to be machined in a particularly complicated and expensive fashion and precisely in order to achieve a sufficiently large and flat contact face. [0006] In that respect in particular the expendi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04B1/00F03D80/00E04H12/08F03D13/20F03D80/80F16B11/00
CPCE04H12/085Y02E10/728F16B11/00E04B1/38F16B5/02E04H12/08
Inventor WOBBEN, ALOYS
Owner WOBBEN ALOYS