Turbine shell opening defect detection device

Abstract

The utility model relates to the technical field of turbine shell defect detection, in particular to a turbine shell opening defect detection device, which comprises a detection device shell, a detection device, a detection device and a detection device, the detection device shell comprises an upper shell and a lower shell, and a mounting port is formed between the upper shell and the lower shell; the detection module is arranged in a mounting opening in the detection device shell, the detection module comprises a first endoscopic probe and a second endoscopic probe, the first endoscopic probe is arranged at the lower end of the upper shell and used for detecting structural defects in the transverse direction, and the second endoscopic probe is arranged at the upper end of the lower shell and used for detecting structural defects in the transverse direction. The method is used for detecting longitudinal structural defects.

Description

TECHNICAL FIELD

[0001] The utility model relates to turbine shell defect detection technical field, in particular to a turbine shell opening place defect detection device. BACKGROUND

[0002] Turbine shell is one of the core components of turbine machinery, usually cast or processed by high-strength alloy material of high temperature resistance, corrosion resistance, the opening part of turbine shell is the key area of fluid access and mechanical connection, and the internal structure surface integrity directly affects the performance, efficiency and reliability of turbine, when the turbine shell opening place has defects such as crack, blowhole, deformation and other problems, serious problems may be caused in the operation process, so the defect detection step in the early stage is crucial.

[0003] At present, the Chinese patent with publication number CN222420018U discloses a turbine shell surface defect visual detection device, which comprises a detection chamber and a controller, a workbench, an industrial camera and a luminous panel are arranged in the detection chamber, a fixed seat is rotatably arranged on the workbench, and a placing groove is arranged on the top of the fixed seat corresponding to the turbine shell to be detected, a driving mechanism for driving the fixed seat to rotate is arranged on one side of the workbench, a plurality of positioning columns are arranged on the top wall near the outer circle of the fixed seat along the periphery, the driving mechanism comprises a lever for pushing the positioning columns to move during rotation and a motor for driving the lever to rotate, and the lever pushes one of the positioning columns to rotate around the center of the fixed seat by a certain angle every time the lever rotates one circle.

[0004] Although this detection device can fix the position of the turbine shell and improve the comprehensiveness and precision of turbine shell surface defect detection by rotating the fixed seat, it can only detect defects on the outside of the turbine shell and cannot extend into the opening position of the turbine shell for internal detection. UTILITY MODEL CONTENTS

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a turbine shell opening place defect detection device, and the above technical purpose is realized by the following technical scheme:

[0006] A turbine shell opening place defect detection device comprises:

[0007] A detection device shell comprises an upper shell and a lower shell, and a mounting opening is formed between the upper shell and the lower shell.

[0008] The detection module is arranged inside the mounting opening in the detection device shell, and comprises a first endoscopic probe and a second endoscopic probe, the first endoscopic probe is arranged at the lower end of the upper shell and used for detecting structural defects in the transverse direction, and the second endoscopic probe is arranged at the upper end of the lower shell and used for detecting structural defects in the longitudinal direction.

[0009] Further, one side of the first endoscopic probe is provided with a first probe base, one side of the first probe base is provided with a first base connecting rod, one side of the first base connecting rod is provided with a first moving block, one side of the second endoscopic probe is provided with a second probe base, one side of the second probe base is provided with a second base connecting rod, and one side of the second base connecting rod is provided with a second moving block.

[0010] Further, the upper end of the first moving block is provided with an upper driving device, the lower end of the second moving block is provided with a lower driving device, and the structure of the upper driving device is consistent with that of the lower driving device.

[0011] Further, the upper driving device comprises a shell inner track block, a servo motor, a lead screw and a driving block, the shell inner track block is arranged at the top end in the upper shell, the inner part of the shell inner track block is provided with a track groove, the driving block is slidingly arranged in the track groove, the lead screw is arranged in the driving block, and the servo motor is arranged at one side of the lead screw.

[0012] Further, the lower end of the driving block is provided with a connecting plate, both sides of the connecting plate are provided with lateral connecting blocks, the inner sides of the lateral connecting blocks are provided with lateral sliding grooves, the lateral sliding grooves are provided with sliding adjusting blocks, the inner part of the sliding adjusting block is provided with a connecting rod fixed with the first connecting block, the inner part of the connecting plate is provided with a sliding column penetrating through the structure of the connecting plate, one end of the sliding column is provided with a connecting rod support fixed with the connecting rod, the other end is provided with a driving support, and one end of the driving support is provided with an adjusting air cylinder fixed to the side wall of the lateral connecting block.

[0013] Further, one side of the first endoscopic probe is provided with a first illuminating element, the first illuminating element is arranged in the first probe base, and one side of the second endoscopic probe is provided with a second illuminating element, the second illuminating element is arranged in the second probe base.

[0014] In summary, the utility model has the following beneficial effects:

[0015] The first endoscopic probe (transverse detection) and the second endoscopic probe (longitudinal detection) are used cooperatively, the structural defect detection in the transverse direction and the longitudinal direction is covered at the same time, the comprehensiveness of detection is improved significantly, and the missing detection problem caused by single direction detection is avoided.

[0016] The utility model discloses not only be equipped with high-precision displacement control servo motor, screw rod and other structures, and through multistage mechanical linkage structure realizes the stable movement and fine adjustment of probe, reduces the vibration interference of probe movement, ensures the stability of detection process. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the principle of the utility model, and the utility model is specifically illustrated as follows:

[0018] Figure 1 It is the oblique view of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 It is Figure 2 The sectional view of A-A direction in it.

[0021] In the drawing, 1, detection device shell;101, upper shell;102, lower shell;103, installation port;201, first endoscopic probe;202, first probe base;203, first base connecting rod;204, first moving block;301, second endoscopic probe;302, second probe base;303, second base connecting rod;304, second moving block;401, shell inner rail block;402, servo motor;403, screw rod;404, driving block;501, connecting rod;502, sliding column;503, connecting rod support;504, driving support;505, adjusting cylinder;6, connecting plate;7, lateral connecting block;8, lateral sliding chute;9, sliding adjusting block;10, first illuminating part;11, second illuminating part. DETAILED DESCRIPTION

[0022] The foregoing and other technical contents, features and effects of the utility model will be described in detail in the following with reference to the accompanying drawings. Figure 1 to the accompanying drawings Figure 3 The detailed description of the embodiments will be clearly presented. The structural contents mentioned in the following embodiments are all referred to the drawings.

[0023] The various exemplary embodiments of the utility model will be described below with reference to the accompanying drawings.

[0024] A turbine shell opening defect detection device, comprising:

[0025] The detection device shell 1 includes an upper shell 101 and a lower shell 102, and the upper shell 101 and the lower shell 102 form an installation port 103 therebetween, and the upper shell 101 and the lower shell 102 together constitute a complete support structure.

[0026] The detection module is arranged inside the mounting port 103 in the detection device shell 1, and includes a first endoscopic probe 201 and a second endoscopic probe 301. The first endoscopic probe 201 is arranged at the lower end of the upper shell 101 and is used for detecting structural defects in the transverse direction, with a detection direction towards the front end. The second endoscopic probe 301 is arranged at the upper end of the lower shell 102 and is used for detecting structural defects in the longitudinal direction, with a detection direction towards the lower end.

[0027] In the structure of the above detection module, the first endoscopic probe 201 and the second endoscopic probe 301 are used in cooperation with each other, so that the device can detect structural defects in both the transverse and longitudinal directions at the same time, significantly improving the comprehensiveness of detection and avoiding the problem of missed detection that may be caused by single-direction detection. Due to the complex structure of the turbine shell opening, the dual-direction probe design can more accurately locate defects such as cracks and deformations.

[0028] One side of the first endoscopic probe 201 is provided with a first probe base 202. One side of the first probe base 202 is provided with a first base connecting rod 203. One side of the first base connecting rod 203 is provided with a first moving block 204. The first base connecting rod 203, the first probe base 202, and the first endoscopic probe 201 are integrated. The first base connecting rod 203 is externally provided with external threads. The first base connecting rod 203 is screwed into the first moving block 204 through the external threads. The overall structure is a lightweight design that is convenient to disassemble and install. This way simplifies the detection and maintenance process, while improving the versatility of the equipment. Different lengths of probes can be added for different turbine shells.

[0029] Similarly, one side of the second endoscopic probe 301 is provided with a second probe base 302. One side of the second probe base 302 is provided with a second base connecting rod 303. One side of the second base connecting rod 303 is provided with a second moving block 304.

[0030] The upper end of the first moving block 204 is provided with an upper driving device. The lower end of the second moving block 304 is provided with a lower driving device. The structure of the upper driving device is consistent with that of the lower driving device.

[0031] Specifically, the upper driving device includes a shell inner track block 401, a servo motor 402, a lead screw 403, and a driving block 404. The shell inner track block 401 is arranged at the inner top end of the upper shell 101. The shell inner track block 401 is internally provided with a track groove. The driving block 404 is slidingly arranged inside the track groove. The lead screw 403 is arranged inside the driving block 404. The servo motor 402 is arranged at one side of the lead screw 403. The combination of the servo motor 402 and the lead screw 403 realizes high-precision displacement control, ensuring the stability of the probe during the detection process.

[0032] The lower end of the driving block 404 is provided with a connecting plate 6, the two sides of the connecting plate 6 are provided with lateral connecting blocks 7, the inner sides of the lateral connecting blocks 7 are provided with lateral sliding grooves 8, the sliding adjusting blocks 9 are arranged in the lateral sliding grooves 8, the inner sides of the sliding adjusting blocks 9 are provided with connecting rods 501 fixed with the first connecting blocks, the inner side of the connecting plate 6 is provided with a sliding column 502 penetrating through the structure of the connecting plate 6, one end of the sliding column 502 is provided with a connecting rod support 503 fixed with the connecting rod 501, the other end of the sliding column 502 is provided with a driving support 504, one end of the driving support 504 is provided with an adjusting cylinder 505 fixed to the side wall of the lateral connecting block 7, the position of the probe is adjusted in real time through the adjusting cylinder 505, the adjusting cylinder 505 controls the horizontal movement adjustment of the sliding column 502 through the driving support 504, the sliding column 502 drives the horizontal movement adjustment of the connecting rod support 503 at one end of the sliding column 502, and finally controls the horizontal movement adjustment of the connecting rod 501, and in the process, the smooth movement of the probe can be realized through the multi-stage mechanical linkage structure.

[0033] The first endoscope probe 201 is provided with a first illuminating part 10 arranged in the first probe base 202, and the second endoscope probe 301 is provided with a second illuminating part 11 arranged in the second probe base 302, the first illuminating part 10 and the second illuminating part 11 provide sufficient illumination in an environment with insufficient light inside the turbine shell, enhance the detection image definition, avoid misjudgment or missed detection caused by insufficient illumination, and at the same time, the illuminating part is designed to be integrated with the probe to save space.

[0034] The above is a further detailed description of the utility model in combination with the specific embodiments, and cannot be determined that the specific implementation of the utility model is limited to this; for the person skilled in the art and the related technical field, the expansion, operation method and data replacement made on the basis of the technical scheme idea of the utility model should be within the protection scope of the utility model.

Claims

1. A turbine shell opening defect detection apparatus, characterized by, The utility model relates to a kind of detection device, including: Detection device shell (1), the detection device shell (1) includes upper shell (101), lower shell (102), and the upper shell (101) is formed with installation port (103) between lower shell (102); Detection module, the detection module is arranged in the installation port (103) in detection device shell (1), and the detection module includes first endoscopic probe (201), second endoscopic probe (301), the first endoscopic probe (201) is arranged at the lower end of upper shell (101), for detecting the structural defect of transverse direction, the second endoscopic probe (301) is arranged at the upper end of lower shell (102), for detecting the structural defect of longitudinal direction.

2. The apparatus for detecting defects at openings of a turbine casing according to claim 1, characterized in that: The side of the first endoscopic probe (201) is provided with a first probe base (202), one side of the first probe base (202) is provided with a first base connecting rod (203), one side of the first base connecting rod (203) is provided with a first moving block (204), one side of the second endoscopic probe (301) is provided with a second probe base (302), one side of the second probe base (302) is provided with a second base connecting rod (303), one side of the second base connecting rod (303) is provided with a second moving block (304).

3. A device for detecting defects at openings in a turbine casing according to claim 2, characterised in that: The upper end of the first moving block (204) is provided with an upper driving device, and the lower end of the second moving block (304) is provided with a lower driving device.

4. A device for detecting defects at openings in a turbine casing according to claim 3, characterised in that: The upper driving device includes a housing inner track block (401), a servo motor (402), a lead screw (403) and a driving block (404), the housing inner track block (401) is arranged at the inner top of the upper shell (101), the housing inner track block (401) is provided with a track groove in the inside, the driving block (404) is slidably arranged in the track groove, the lead screw (403) is arranged in the driving block (404), and the servo motor (402) is arranged on one side of the lead screw (403).

5. A device for detecting defects at openings in a turbine casing according to claim 4, characterised in that: The lower end of the driving block (404) is provided with a connecting plate (6), the two sides of the connecting plate (6) are provided with lateral connecting blocks (7), the inner side of the lateral connecting block (7) is provided with a lateral sliding groove (8), the lateral sliding groove (8) is provided with a sliding adjusting block (9), the inside of the sliding adjusting block (9) is provided with a connecting rod (501) fixed with the first connecting block, the inside of the connecting plate (6) is provided with a sliding column (502) penetrating through the structure, one end of the sliding column (502) is provided with a connecting rod support (503) fixed with the connecting rod (501), the other end is provided with a driving support (504), one end of the driving support (504) is provided with an adjusting cylinder (505) fixed to the side wall of the lateral connecting block (7).

6. A device for detecting defects at openings in a turbine casing according to claim 5, characterised in that: The first endoscopic probe (201) is provided with a first illuminating part (10) arranged in a first probe base (202), and the second endoscopic probe (301) is provided with a second illuminating part (11) arranged in a second probe base (302).

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