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Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor

A technology for assembling steam turbine rotors and blades, which is applied to mechanical measuring devices, measuring devices, and mechanical devices, etc., can solve the problem of inability to measure the radiation deviation of the secondary and final blades of large-scale low-pressure rotors, cannot guarantee the measurement accuracy, and is inconvenient to measure, etc. It can solve the problem of radiation deviation measurement, reduce the weight and improve the measurement accuracy.

Inactive Publication Date: 2012-04-04
HARBIN TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing radiation deviation measurement tools are bulky, cannot guarantee the measurement accuracy, and are not convenient for measurement, and cannot realize the measurement of the radiation deviation of the last stage blade of a large low-pressure rotor, and then provide a steam turbine Tool for measuring radial line deviation of rotor lock slotted blade assembly

Method used

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  • Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor
  • Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor
  • Locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor

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specific Embodiment approach 1

[0010] Specific implementation mode one: combine figure 1 and figure 2 To illustrate this embodiment, the steam turbine rotor lock groove blade assembly radiation deviation measurement tool of this embodiment includes a dial indicator 1, an L-shaped bracket 2, a positioning pin 3, a base 4, and four cylindrical pins 5; the base 4 includes a main board 4-1 and two side plates 4-2, a side plate 4-2 is respectively arranged on the front and rear sides of the main board 4-1, and two cylindrical pins 5 are installed on the bottom surface of each side plate 4-2, L-shaped Bracket 2 is installed on the upper end face of main board 4-1, and alignment pin 3 is installed on the left side of main board 4-1, and dial indicator 1 is installed on the vertical plate of L-shaped support 2, and the meter top of dial indicator 1 Point and the apex of positioning pin 3 are on the same vertical line.

specific Embodiment approach 2

[0011] Specific implementation mode two: combination figure 1 and figure 2 Describe this embodiment, the steam turbine rotor lock groove blade assembly radiation deviation measurement tool of this embodiment includes a rib plate 6, the upper end of the rib plate 6 is connected with the vertical plate of the L-shaped bracket 2, and the lower end of the rib plate 6 is connected with the L-shaped bracket 2. Base plate connection for bracket 2. With such arrangement, the structure is more stable. Other compositions and connections are the same as in the first embodiment.

[0012] How it works: combined image 3 and Figure 4 To explain the working principle, first adjust the dial gauge 1 to zero, and the connection line between the top of the dial gauge 1 and the top of the positioning pin 3 is on the perpendicular bisector of the line connecting the two cylindrical pins 5; then, install the base 4 On the rotor impeller 9, the cylindrical pin 5 on the side plate 4-2 falls on...

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Abstract

A locking sheet groove type blade assembled radial line deviation measuring apparatus of steam turbine rotor relates to a deviation measuring apparatus of blade assembled radial line, which solves the problem in the radial line deviation measuring tool that cannot guarantee the measuring precision, is inconvenient to measure and cannot realize the deviation measurement of the large low pressure rotor last-stage blade radial line. A base includes a main board and two side boards, wherein the front side and the rear side of the main board are respectively provided with a side board; the bottom surface of each side board is provided with two cylinder pins; an L-shaped rack is installed on the upper end face of the main board; a locating pin is installed on the left side face of the main board; a dialgage is installed on the vertical plate of the L-shaped rack; the top point on the head of the dialgage and the top point of the locating pin are on the same vertical line. The invention is used for the deviation measurement of locking sheet groove type blade assembled radial line of steam turbine rotor.

Description

technical field [0001] The invention relates to a tool for measuring the radial deviation of the assembly of the rotor blade of a steam turbine, in particular to a measuring tool for the deviation of the radial line of the assembly of the blade of the steam turbine rotor lock plate groove. Background technique [0002] The deviation of the radial line of the rotor blade assembly directly affects the flow parameters of the blade's steam channel, and the flow parameters will directly affect the power generation of the unit. This requires that the blade radiation deviation must be strictly controlled during the blade assembly process, so as to ensure the accuracy of the blade assembly position, so that the blade can be in the correct working position when the unit is running. For high-power units with more than 600,000 steam turbine products, the blades of the last stage of the low-pressure rotor mostly adopt the blade locking method of the lock plate groove structure. The impe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/00
Inventor 孙英娣太秀滨姚青文张俊成车利民孙治丰张强贾春艳李凤娟
Owner HARBIN TURBINE
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