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Method and device for securing a threaded element screwed into a threaded seat, method for mounting at least one balancing weight of a turbine, and a turbine

A technology of threaded components and balance weights, applied in threaded fasteners, blade support components, mechanical equipment, etc., can solve problems such as wear and tear, and achieve the effect of precise plastic deformation

Inactive Publication Date: 2016-09-28
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn can lead to increased wear overall and to premature maintenance work and thus to a standstill of the turbine

Method used

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  • Method and device for securing a threaded element screwed into a threaded seat, method for mounting at least one balancing weight of a turbine, and a turbine
  • Method and device for securing a threaded element screwed into a threaded seat, method for mounting at least one balancing weight of a turbine, and a turbine
  • Method and device for securing a threaded element screwed into a threaded seat, method for mounting at least one balancing weight of a turbine, and a turbine

Examples

Experimental program
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Effect test

Embodiment Construction

[0052] figure 1 The device 1 shown in this embodiment is constructed in such a way that it is provided for locking screwed into the threaded seat 2 (see figure 2 and 3 ) in the threaded element 3 , which is realized here in the form of a mounting screw 4 of the balance weight 5 .

[0053] To this end, the device 1 is equipped with a tool 10 by means of which at least the threaded socket 2 introduced into the balancing weight 5 and, where appropriate, also the mounting screw 4 can be plastically deformed. Thus, preferably not only the balancing weight 5 but also the mounting screw 4 is plastically deformed by means of the device 1 for the purpose of producing a loss protection for the mounting screw 4 .

[0054] The tool 10 comprises on the one hand a drive receptacle 11 which can be inserted into the threaded element 3 , more precisely the threaded element 3 (see figure 2 ) so that the tool 10 can be placed centrally in front of the threaded element 3 in an operationally ...

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PUM

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Abstract

The invention relates to a method for securing a threaded element (3) screwed into a threaded seat (2) in which at least the threaded element (3) screwed into the threaded seat (2) is at least partially plastically deformed by means of deformation means (14) of a tool (10) in such a way that said threaded element is subsequently arranged secured against rotation in the threaded seat (2). The tool (10) is thereby placed axially in front of the threaded element (3) in that a guide element (12) of the tool (10) is inserted axially in a drive mount (11) of the threaded element (3), wherein the deformation means (14) thus placed axially in front of the threaded element (3) is accelerated in the direction of the threaded element (3), and wherein the deformation means (14) shifts relatively with respect to the guide element (12) inserted in the drive mount (11) in such a way that at least the first thread of the threaded element (3) and / or the threaded seat (2) facing the tool (10) is deformed by the deformation means (14) in order to secure the threaded element (3) in the threaded seat (2).

Description

technical field [0001] One aspect of the invention relates to a method for locking a threaded element screwed into a threaded seat, wherein at least the threaded element screwed into the threaded seat is at least partially plastically deformed by a deformation mechanism of a tool such that the The threaded element is then arranged in the threaded seat in a rotationally locked manner. [0002] Another aspect of the invention relates to a method for installing at least one balancing weight of a turbomachine, in particular a steam turbine, wherein at least one of the balancing weights is fixed by means of a threaded element designed as a mounting screw, wherein the threaded element Tightened in the threaded seat with a defined torque during the final balancing process performed under operating conditions. [0003] The invention also relates to a device for locking a threaded element screwed into a threaded seat by means of a tool for at least plastically deforming the threaded e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/06B25B13/48B25B15/00F16B39/02
CPCB25B13/06B25B13/48B25B15/008F01D5/027F01D25/285F16B39/025B25B13/481F16B39/02F05D2220/31F05D2230/60
Inventor 斯特凡·本特勒
Owner SIEMENS AG
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