Turbine blade overhauling device

Abstract

The utility model relates to the technical field of steam turbine overhaul, and discloses a steam turbine blade overhaul device which comprises a base and an overhaul wall, a fixing block is arranged on the top of the base, a fixing column is assembled on the top of the overhaul wall, a welding device and a detector are assembled on one side of the fixing column, a rotating shaft is assembled in the middle of the fixing block, and the rotating shaft is connected with the welding device. A blade body is assembled on the outer side of the rotating shaft, a clamping assembly is arranged in the middle of the fixing block, an adjusting assembly is arranged at the top of the base, cleaning assemblies are arranged at the bottoms of the welding device and the detector, and a lifting assembly is arranged in the middle of the fixing column. According to the utility model, under the cooperation of the rotating shaft, the blade main body, the hydraulic rod I, the sliding block, the fixed block, the motor I, the clamping table and other structures, the detection and welding area range is greatly expanded, the automation level of maintenance is improved, the labor intensity of workers is reduced, and the quality and efficiency of steam turbine blade maintenance are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam turbine maintenance technical field especially relates to a steam turbine blade maintenance device. BACKGROUND

[0002] Steam turbine blade is one of steam turbine core components, is responsible for the heat energy and pressure energy of steam conversion mechanical energy, steam turbine blade usually by high strength material manufacture, has the characteristics of high temperature resistance, corrosion resistance.

[0003] Steam turbine blade will be affected by high temperature, high pressure steam and the scouring of airflow in the long-term operation process, lead to blade wear, corrosion, crack and other damage, affect its work efficiency and safety, in order to ensure the stable operation of steam turbine and prolong service life, regularly overhaul and maintain blade, especially the operation of welding wear part has full necessity.

[0004] At present, the traditional steam turbine blade, the maintenance platform is usually designed to support the shaft clamping of certain size steam turbine blade and then to the fixed steam turbine blade detection and welding operation, because the fixed structure is too single, single function, low degree of automation, when facing different sizes of shaft and blade, need manual disassembly and adjust the maintenance platform, greatly reduce the blade maintenance and operation efficiency, at the same time, low degree of automation, lead to low precision of manual operation, the probability of error increases, in turn, reduce the steam turbine blade maintenance operation quality, therefore, a steam turbine blade maintenance device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a steam turbine blade maintenance device, aims at improving the single function of maintenance platform in prior art, low degree of automation, manual disassembly and adjustment when maintaining different sizes of shaft and blade, reduce the blade maintenance and operation efficiency, and because of low precision of manual operation, prone to error, lead to the problem of steam turbine blade maintenance operation quality decline.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] A steam turbine blade maintenance device, including base and maintenance wall, the top of base is provided with fixed block, the top of maintenance wall is equipped with fixed column, one side of fixed column is equipped with welder and detector, the middle part of fixed block is equipped with shaft, the outer side of shaft is equipped with blade body, the middle part of fixed block is provided with clamping assembly, the top of base is provided with adjusting assembly, the bottom of welder and detector is provided with cleaning assembly, the middle part of fixed column is provided with lifting assembly;

[0008] The adjusting assembly comprises a motor one, the motor one is assembled on the side of the fixed block far away from the rotating shaft, one end of the base is provided with a hydraulic rod one, and the output end of the hydraulic rod one is provided with a sliding block;

[0009] As a further description of the above technical solution:

[0010] The clamping assembly comprises a clamping table, the clamping table is rotationally connected in the middle of the fixed block, the middle of the clamping table is slidably connected with a clamping block, the bottom of the clamping block is fixedly connected with an electric push rod, the middle of the clamping table is fixedly connected with a fixed rod, the outer side of the fixed rod is rotationally connected with a rotating block, the bottom of the rotating block is rotationally connected with a connecting rod, and the connecting rod abuts between the clamping block and the rotating block;

[0011] As a further description of the above technical solution:

[0012] The cleaning assembly comprises a motor two, the motor two is assembled on the top of the base, and the output end of the motor two is fixedly connected with a brush;

[0013] As a further description of the above technical solution:

[0014] The lifting assembly comprises a hydraulic rod two, and the output end of the hydraulic rod two is fixedly connected with a connecting rod;

[0015] As a further description of the above technical solution:

[0016] The top of the base is provided with a limiting groove, and the sliding block is slidably connected in the middle of the limiting groove;

[0017] As a further description of the above technical solution:

[0018] The end of the clamping table far away from the rotating shaft is fixedly connected with the output end of the motor one;

[0019] As a further description of the above technical solution:

[0020] The inside of the clamping table is provided with a sliding groove, a pair of clamping blocks are symmetrically arranged, the clamping blocks are slidably connected in the middle of the sliding groove, and the middle is slidably connected with a collecting box;

[0021] As a further description of the above technical solution:

[0022] The connecting rod is slidably connected in the middle of the fixed column.

[0023] The utility model has the advantages of the following:

[0024] 1. In the utility model, through the electric push rod drive a pair of clamping block removal, through connecting rod transmission makes the rotation block rotation, drive another pair of clamping block removal, so that the different size of the rotating shaft and the blade main body can be quickly replaced and clamped fixed, motor one drive clamping platform rotation, promote the rotating shaft and the blade main body rotation, hydraulic rod one push slider and fixed block removal, automatically adjust the distance between the rotating shaft and the blade main body and welder, detector, effectively expand the detection and welding area range, improve the level of automatic overhaul, reduce the labor intensity, improve the quality and efficiency of steam turbine blade overhaul.

[0025] 2. In the utility model, through motor two drive brush rotation, make the operation garbage in the limiting groove be swept into the collection box and be collected and handled in batches, realize the function of the maintenance device work area quick cleaning, effectively improve the cleaning of steam turbine blade maintenance area, help the next maintenance operation, auxiliary improve the quality of maintenance operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic view of a steam turbine blade maintenance device proposed in the utility model;

[0027] Figure 2 It is a structure schematic view of the clamping table of a steam turbine blade maintenance device proposed in the utility model;

[0028] Figure 3 It is a structure schematic view of the rotation block of a steam turbine blade maintenance device proposed in the utility model;

[0029] Figure 4 It is a structure schematic view of the brush of a steam turbine blade maintenance device proposed in the utility model.

[0030] LEGEND:

[0031] 1, base; 2, maintenance wall; 3, clamping table; 4, clamping block; 5, clamping assembly; 6, sliding groove; 7, rotation block; 8, fixed rod; 9, connecting rod; 10, electric push rod; 11, adjusting assembly; 12, fixed block; 13, motor one; 14, hydraulic rod one; 15, slider; 16, lifting assembly; 17, fixed column; 18, hydraulic rod two; 19, link rod; 20, welder; 21, detector; 22, cleaning assembly; 23, motor two; 24, brush; 25, collection box; 26, rotating shaft; 27, blade main body; 28, limiting groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] With reference to Figure 1 And Figure 2 An embodiment provided by the utility model: a steam turbine blade overhauling device, including base 1 and overhauling wall 2, the top of base 1 is provided with fixed block 12, the top of overhauling wall 2 is equipped with fixed column 17, one side of fixed column 17 is equipped with welder 20 and detector 21, the middle part of fixed block 12 is equipped with rotating shaft 26, the outside of rotating shaft 26 is equipped with blade main body 27, the middle part of fixed block 12 is provided with clamping assembly 5, the top of base 1 is provided with adjusting assembly 11, for the horizontal direction movement adjustment of rotating shaft 26 and blade main body 27, improve the overhauling automation degree of steam turbine blade, effectively improve the efficiency of overhauling, the bottom of welder 20 and detector 21 is provided with cleaning assembly 22, the middle part of fixed column 17 is provided with lifting assembly 16;

[0034] Adjusting assembly 11 includes motor one 13, motor one 13 is equipped in the side of fixed block 12 away from rotating shaft 26, one end of base 1 is equipped with hydraulic rod one 14, the output end of hydraulic rod one 14 is equipped with sliding block 15, through the start and operation of motor one 13, its output shaft drives the uniform speed rotation of the clamping table 3 connected with it, because rotating shaft 26 and blade main body 27 are stably placed on clamping table 3, under the rotation of clamping table 3, rotating shaft 26 and blade main body 27 also synchronously rotate with it, so that subsequent detection and welding operation can be carried out in all directions, when the rotating operation needs to adjust the detection and welding position, start hydraulic rod one 14, hydraulic rod one 14 starts to stretch or shrink, the telescopic action of its telescopic rod drives the linear movement of sliding block 15 connected with it along the specific track, and sliding block 15 drives fixed block 12 fixedly connected with it to move in the moving process, the position change of fixed block 12 can accurately and automatically adjust the distance between rotating shaft 26 and blade main body 27 and welder 20 and detector 21, through this automatic adjustment mode, not only can effectively avoid the error and inefficiency problem caused by manual adjustment, but also can comprehensively improve the coverage of detection and welding area, so that the whole detection and welding process is more comprehensive and efficient, finally significantly improves the automation level of the whole operation process, ensures the high-quality completion of steam turbine blade overhauling operation.

[0035] With reference to Figure 3The clamping assembly 5 comprises a clamping table 3, which is rotationally connected to the middle part of the fixed block 12, and the middle part of the clamping table 3 is slidingly connected with a clamping block 4, the bottom of the clamping block 4 is fixedly connected with an electric push rod 10, the middle part of the clamping table 3 is fixedly connected with a fixed rod 8, the outer side of the fixed rod 8 is rotationally connected with a rotating block 7, the bottom of the rotating block 7 is rotationally connected with a connecting rod 9, the connecting rod 9 abuts between the clamping block 4 and the rotating block 7, after the electric push rod 10 operates, the telescopic rod of the electric push rod 10 performs telescopic movement, so as to drive a pair of clamping blocks 4 connected therewith to move in a predetermined direction, when the pair of clamping blocks 4 move, since they are connected with one end of a pair of connecting rods 9 through a specific connecting structure, the movement of the clamping blocks 4 will exert corresponding acting force on the connecting rods 9, so that the pair of connecting rods 9 rotates with the connecting point of the clamping blocks 4 as the shaft, and the other end of the pair of connecting rods 9 is connected with the rotating block 7, with the rotation of the connecting rods 9, the rotating block 7 starts to rotate under the driving of the connecting rods 9, the rotation of the rotating block 7 will drive another pair of connecting rods 9 to rotate, under the rotation of the rotating block 7, the other pair of connecting rods 9 rotates with the connecting point of the rotating block 7 as the shaft, finally, the other end of the other pair of connecting rods 9 is connected with another pair of clamping blocks 4, in the rotation process, it will drive the other pair of clamping blocks 4 to move correspondingly, through the series of linkage processes, the two pairs of clamping blocks 4 can cooperate with each other to stably and accurately clamp and fix the shafts 26 and the blade bodies 27 of different sizes, and provide reliable foundation guarantee for subsequent detection, maintenance and other operations.

[0036] With reference to Figures 1-4, the cleaning assembly 22 comprises a motor 23 assembled on the top of the base 1, and the output end of the motor 23 is fixedly connected with a brush 24; the brush 24 is driven to rotate at high speed by the motor 23; the bristles of the brush 24 are in close contact with the limiting groove 28; by virtue of strong friction and cleaning force, metal scraps, dust and various operation garbage generated in the limiting groove 28 during the blade maintenance operation are gradually gathered and pushed to move along the preset guide channel of the limiting groove 28 to the direction of the collecting box 25, and finally are swept into the collecting box 25, so that the long-existing cleaning problem in the working area of the maintenance device is effectively solved, the cleanliness of the working area is ensured, and the efficient promotion of the maintenance operation is facilitated; the lifting assembly 16 comprises a hydraulic rod 18, the output end of the hydraulic rod 18 is fixedly connected with a connecting rod 19, the top of the base 1 is provided with a limiting groove 28, and the sliding block 15 is slidingly connected to the middle of the limiting groove 28; the limiting groove 28 is used for limiting and protecting the sliding block 15, so that the stability and reliability of movement are ensured; one end of the clamping table 3 away from the rotating shaft 26 is fixedly connected to the output end of the motor 13, the clamping table 3 is driven to rotate by the motor 13, the range and efficiency of the steam turbine blade maintenance are improved, the sliding groove 6 is formed in the clamping table 3, and the clamping blocks 4 are symmetrically arranged in pairs; the collecting box 25 is slidingly connected to the middle of the maintenance wall 2 and can be freely detached, so that the discharge of operation garbage is facilitated; and the connecting rod 19 is slidingly connected to the middle of the fixed column 17.

[0037] Working principle: firstly, if the rotating shaft 26 and the blade body 27 of different sizes need to be replaced and detected, the rotating shaft 26 and the blade body 27 are hoisted, one end of the rotating shaft 26 is placed in the middle of the vertical alignment clamping table 3, the electric push rod 10 is started, the electric push rod 10 drives the pair of clamping blocks 4 to move, the pair of clamping blocks 4 drive the pair of connecting rods 9 to rotate, the pair of connecting rods 9 drive the rotating block 7 to rotate, the rotating block 7 drives the other pair of connecting rods 9 to rotate, the other pair of connecting rods 9 drive the other pair of clamping blocks 4 to move, and then different sizes of the rotating shaft 26 and the blade body 27 are clamped and fixed, then the motor 13 is started, the motor 13 drives the clamping table 3 to rotate, and then the rotating shaft 26 and the blade body 27 are driven to rotate, finally the hydraulic rod 14 is started, the hydraulic rod 14 drives the sliding block 15 to move, the sliding block 15 drives the fixed block 12 to move, and then the distance between the rotating shaft 26 and the blade body 27 and the welder 20 and the detector 21 is automatically adjusted, the range of the detection and welding area is comprehensively improved, and the automation level is improved;

[0038] Secondly, when the welding and detection height is adjusted, the hydraulic rod 18 is started, the hydraulic rod 18 drives the connecting rod 19 to move, the connecting rod 19 drives the rotating shaft 26 and the blade body 27 to move, and then the distance between the rotating shaft 26 and the blade body 27 and the blade body 27 is adjusted, the function of automatically adjusting the detection and welding operation is realized, and the detection and welding efficiency is improved.

[0039] Thirdly, if the welding operation garbage needs to be cleaned, the motor 23 is started, the motor 23 drives the brush 24 to rotate, so that the operation garbage in the limiting groove 28 is swept into the collecting box 25 for centralized collection and treatment, which solves the problem that the working area of the maintenance device is difficult to clean.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A steam turbine blade access device comprising a base (1) and an access wall (2), characterised in that: The top of the base (1) is provided with a fixed block (12), the top of the inspection wall (2) is equipped with a fixed column (17), one side of the fixed column (17) is equipped with a welder (20) and a detector (21), the middle of the fixed block (12) is equipped with a rotating shaft (26), the outer side of the rotating shaft (26) is equipped with a blade body (27), the middle of the fixed block (12) is provided with a clamping assembly (5), the top of the base (1) is provided with an adjusting assembly (11), the bottom of the welder (20) and the detector (21) is provided with a cleaning assembly (22), the middle of the fixed column (17) is provided with a lifting assembly (16). The adjusting assembly (11) comprises a motor one (13), the motor one (13) is equipped on the side of the fixed block (12) away from the rotating shaft (26), one end of the base (1) is equipped with a hydraulic rod one (14), and the output end of the hydraulic rod one (14) is equipped with a sliding block (15).

2. A steam turbine blade access device according to claim 1, characterised in that: The clamping assembly (5) comprises a clamping table (3), the clamping table (3) is rotatably connected in the middle of the fixed block (12), the middle of the clamping table (3) is slidably connected with a clamping block (4), the bottom of the clamping block (4) is fixedly connected with an electric push rod (10), the middle of the clamping table (3) is fixedly connected with a fixed rod (8), the outer side of the fixed rod (8) is rotatably connected with a rotating block (7), the bottom of the rotating block (7) is rotatably connected with a connecting rod (9), and the connecting rod (9) abuts between the clamping block (4) and the rotating block (7).

3. A steam turbine blade access device according to claim 1, characterised in that: The cleaning assembly (22) comprises a motor two (23), the motor two (23) is equipped on the top of the base (1), and the output end of the motor two (23) is fixedly connected with a brush (24).

4. A steam turbine blade access device according to claim 1, characterised in that: The lifting assembly (16) comprises a hydraulic rod two (18), and the output end of the hydraulic rod two (18) is fixedly connected with a connecting rod (19).

5. A steam turbine blade access device according to claim 1, characterised in that: The top of the base (1) is provided with a limiting groove (28), and the sliding block (15) is slidably connected in the middle of the limiting groove (28).

6. A steam turbine blade access device according to claim 2, characterised in that: One end of the clamping table (3) away from the rotating shaft (26) is fixedly connected with the output end of the motor one (13).

7. A steam turbine blade access device according to claim 2, characterised in that: The inside of the clamping table (3) is provided with a sliding groove (6), a pair of clamping blocks (4) are symmetrically arranged, and the clamping blocks (4) are slidably connected in the middle of the sliding groove (6).

8. A steam turbine blade access device according to claim 4, characterised in that: The connecting rod (19) is slidably connected in the middle of the fixed column (17).

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