Multi-directional positioning fixing table for gas turbine compressor stationary blade maintenance

Abstract

The utility model discloses a gas turbine compressor stationary blade maintenance fixing table capable of multidirectional positioning, which comprises a working platform, the surface of the working platform is fixedly provided with a plurality of groups of supporting seats, the surfaces of the plurality of groups of supporting seats are covered with stationary blade sectors, and meanwhile, the stationary blade sectors are provided with welding seams. A plurality of groups of pressing plate assemblies are uniformly mounted on the working platform, the stator blade sector is limited and fixed on the supporting seat through the plurality of groups of pressing plate assemblies, an electric milling cutter is mounted on the surface of the working platform, and a radius adjusting screw rod is mounted at the end part of the electric milling cutter. According to the fixing table capable of being positioned in multiple directions and used for overhauling the stationary blade of the gas turbine compressor, the pressing plate assembly can transversely move in the channel, the position of the pressing plate assembly in the adjusting channel is adjusted, multi-point clamping work on a stationary blade sector on the working platform can be achieved, deviation in the early-stage cutting process is avoided, and the working efficiency is improved. And deformation caused by improper fixation in the re-assembly welding process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas turbine overhauling equipment field, concretely is a kind of static vane fixing table for gas turbine compressor overhauling of multidirectional positioning. BACKGROUND

[0002] Gas turbine compressor static vane is located in the interstage of compressor, it is fixed blade;It surrounds the shaft of compressor, and it is annular arrangement;The blade profile design of static vane usually has good aerodynamic performance, the surface of blade is smooth, and there is certain curvature, its structure includes blade body, blade root and blade tip part;Blade root is used to fix static vane on the casing of compressor, and blade tip maintains certain gap with rotating moving blade, to prevent mutual collision;

[0003] Gas turbine compressor static vane overhauling is important work of gas turbine overhauling, mainly involves static vane replacement, static vane fixing groove repair welding, and so on, these all need to disassemble static vane ring of compressor, place on workbench, when static vane is operated on workbench, it is easy to deviate, leading to deviation in early cutting process, and it is also easy to cause deformation in later welding;Therefore, a kind of static vane fixing table for gas turbine compressor overhauling of multidirectional positioning is needed to solve the above defects. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of static vane fixing table for gas turbine compressor overhauling of multidirectional positioning to solve the defects mentioned in the above background art.

[0005] To achieve the above object, a kind of static vane fixing table for gas turbine compressor overhauling of multidirectional positioning is provided, including work platform, the surface of work platform is fixedly installed with multiple sets of support seat, and the surface of multiple sets of support seat is covered with static vane segment, welding is set on static vane segment, and multiple sets of pressing plate assemblies are evenly installed on work platform, static vane segment is fixed by limiting on support seat through multiple sets of pressing plate assemblies, the surface of work platform is installed with electric milling cutter, and the end of electric milling cutter is installed with radius adjusting screw rod, and rotating bearing is set on the end of radius adjusting screw rod.

[0006] Preferably, the support seat forms an adjusting channel with the support seat, and the pressing plate assembly is a transverse motion structure inside the adjusting channel.

[0007] Preferably, the length of the support seat is consistent with the length of the work platform, and the cross section of the support seat is "T" shaped.

[0008] Preferably, the pressing plate assembly includes a stud inserted between the support seat and the support seat, the bottom of the stud is fixedly installed with a limiting seat, the top of the stud is screw-connected with a pressing plate body and a locking nut, and the pressing plate body is disc-shaped.

[0009] Preferably, the bottom surface of the pressing plate body and the upper surface of the limiting seat are fixedly bonded with a buffer pad, and the buffer pad is a circular structure made of rubber material, and the surfaces of the pressing plate body and the limiting seat are provided with three groups of arc-shaped slot holes.

[0010] Preferably, a plurality of stress receiving seats are fixedly installed on the circumferential outer side of the pressing plate body, and the distance between adjacent two groups of stress receiving seats is consistent, and the pressing plate body is screwed on the stud and covers the surface of the stationary vane segment.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The pressing plate assembly can move horizontally in the groove, and by adjusting the position of the pressing plate assembly in the adjusting channel, the stationary vane segment can be clamped at multiple points on the workbench, avoiding deviation during the cutting process and deformation during the re-welding process due to improper fixation.

[0013] 2. The cross section of the supporting seat is in the shape of T, and the pressing plate body on the limiting seat rotates and moves downward, so that the buffer pad at the bottom of the pressing plate body covers the surface of the stationary vane segment. To further prevent the pressing plate body from loosening, a locking nut can be screwed and fixed on the top of the stud, ensuring the stability of the clamping of the stationary vane segment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the structure of the utility model;

[0015] Figure 2 It is a side view of the utility model; Figure 1

[0016] Figure 3 It is a partial enlarged view of the stationary vane segment in the utility model; Figure 2

[0017] Figure 4 It is a schematic view of the supporting seat and the pressing plate assembly;

[0018] Figure 5 It is a schematic view of the structure of the pressing plate assembly;

[0019] Figure 6 It is a bottom view of the utility model; Figure 5

[0020] Figure 7 It is a sectional view of the utility model. Figure 5

[0021] ​​​​The figure label: 1, work platform;2, support seat;3, pressing plate assembly;31, limit seat;32, buffer pad;33, stud;34, force seat;35, pressing plate body;36, slot hole;37, locking nut;4, static vane segment;41, weld;5, electric milling cutter;51, radius adjusting screw;52, rotating bearing. DETAILED DESCRIPTION

[0022] Please see Figures 1-7 The utility model provides a kind of fixed platform for gas turbine compressor static blade maintenance of multidirectional positioning, including work platform 1, the surface of work platform 1 is fixedly installed with multiple groups of support seat 2, and the surface of multiple groups of support seat 2 is covered with static vane segment 4, while static vane segment 4 is provided with weld 41, and multiple groups of pressing plate assembly 3 are evenly installed on work platform 1, static vane segment 4 is fixed by multiple groups of pressing plate assembly 3 on support seat 2, the surface of work platform 1 is installed with electric milling cutter 5, and the end of electric milling cutter 5 is installed with radius adjusting screw 51, while radius adjusting screw 51 end is provided with rotating bearing 52.

[0023] Working principle: the surface of work platform 1 is fixedly provided with multiple groups of support seat 2, and adjustment channel is formed between support seat 2 and support seat 2, and pressing plate assembly 3 can move horizontally in the inside of the channel, by adjusting the position of pressing plate assembly 3 in adjustment channel, the multiple-point clamping work of static vane segment 4 on work platform 1 can be realized, avoid deviation in early cutting process, avoid deformation in improper fixing during re-welding;The fixed mode of pressing plate assembly 3 to static vane segment 4 is: limit seat 31 on pressing plate assembly 3 is arranged between two groups of support seat 2, and the section of support seat 2 is "T" shape, at this time, the pressing plate body 35 on limit seat 31 rotates and moves downward, so that the buffer pad 32 at the bottom of pressing plate body 35 covers the surface of static vane segment 4, to further avoid the loosening of pressing plate body 35, at this time, locking nut 37 can be screwed and fixed on the top of stud 33, to ensure the stability when clamping static vane segment 4.

[0024] As a preferred embodiment, support seat 2 and support seat 2 form adjustment channel, and pressing plate assembly 3 is a horizontal motion structure inside the adjustment channel.

[0025] The length of support seat 2 is consistent with the length of work platform 1, and the section of support seat 2 is "T" shape.

[0026] As a preferred embodiment, pressing plate assembly 3 includes stud 33 inserted between support seat 2 and support seat 2, the bottom of stud 33 is fixedly installed with limit seat 31, the top of stud 33 is screwed and installed with pressing plate body 35 and locking nut 37, and pressing plate body 35 is provided with original disc shape.

[0027] The bottom surface of the pressing plate body 35 and the upper surface of the limiting seat 31 are both fixedly bonded with a buffer pad 32, which is a circular structure made of rubber material, and the surfaces of the pressing plate body 35 and the limiting seat 31 are both provided with three groups of arc-shaped slot holes 36.

[0028] As a preferred implementation, a plurality of force receiving seats 34 are fixedly installed on the circumferential outer side of the pressing plate body 35, and the distance between any two adjacent groups of the force receiving seats 34 is consistent, and the pressing plate body 35 is screwed on the stud 33 and covers the surface of the stationary vane segment 4.

[0029] The end of the electric milling cutter 5 is provided with a radius adjusting screw rod 51, and the end of the radius adjusting screw rod 51 is provided with a rotating bearing 52. The electric milling cutter 5 can be used to polish the welded weld (41), improving the polishing efficiency and accuracy. The original manual cutting and polishing is replaced by special mechanical operation, improving the polishing speed and quality.

Claims

1. A multi-directional positioning fixed platform for the maintenance of a gas turbine compressor stator blade, comprising a work platform (1), characterized in that: The surface of the working platform (1) is fixedly installed with multiple groups of support seats (2), the surface of the multiple groups of support seats (2) is covered with static blade segments (4), the static blade segments (4) are provided with welds (41), the working platform (1) is uniformly installed with multiple groups of pressing plate assemblies (3), the static blade segments (4) are limited and fixed on the support seats (2) through the multiple groups of pressing plate assemblies (3), the surface of the working platform (1) is installed with an electric milling cutter (5), the end of the electric milling cutter (5) is installed with a radius adjusting lead screw (51), the end of the radius adjusting lead screw (51) is provided with a rotating bearing (52).

2. A multi-directional positioning fixed platform for gas turbine compressor stator blade inspection according to claim 1, characterized in that: The support seat (2) forms an adjusting channel with the support seat (2), and the pressing plate assembly (3) is a transverse movement structure inside the adjusting channel.

3. A multi-directional positioning fixed platform for gas turbine compressor stator blade inspection according to claim 1, characterized in that: The length of the support seat (2) is consistent with the length of the working platform (1), and the cross section of the support seat (2) is provided in a "T" shape.

4. A multi-directional positioning fixed platform for gas turbine compressor stator blade inspection according to claim 1, characterized in that: The pressing plate assembly (3) includes a stud (33) inserted between the support seat (2) and the support seat (2), the bottom of the stud (33) is fixedly installed with a limiting seat (31), the top of the stud (33) is screw-connected with a pressing plate body (35) and a locking nut (37), and the pressing plate body (35) is provided in a disc shape.

5. A multi-directional positioning fixed platform for gas turbine compressor stator blade inspection according to claim 4, characterized in that: The bottom surface of the pressing plate body (35) and the upper surface of the limiting seat (31) are both adhesively fixed with a buffer pad (32), the buffer pad (32) is made of rubber material and has a circular structure, and the surfaces of the pressing plate body (35) and the limiting seat (31) are both provided with three groups of arc-shaped slot holes (36).

6. A multi-directional positioning fixed platform for gas turbine compressor stator blade inspection according to claim 5, characterized in that: The circumferential outer side of the pressing plate body (35) is fixedly installed with multiple groups of stress receiving seats (34), the distance between adjacent two groups of stress receiving seats (34) is consistent, the pressing plate body (35) is screwed on the stud (33) and covers the surface of the static blade segment (4).

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