A blade root detection device for TRT blade production

Abstract

The utility model relates to industrial detection equipment technical field especially relates to a kind of blade root detection device for TRT blade production. Including bottom plate, the top of bottom plate is provided with support, the top of support is provided with sleeve shell, electric push rod with telescopic end is installed in sleeve shell, and mounting block is connected on the telescopic end of electric push rod, sliding frame one is slidably arranged on mounting block, ultrasonic detector for TRT blade blade root detection is arranged in the bottom of sliding frame one, fixed part is provided on bottom plate, and limiting module for placing TRT blade blade root is detachably provided on fixed part. Through electric push rod drive first sliding frame moves, and the rolling structure of guide rail and moving wheel is combined, so that ultrasonic detector can be stably, evenly adhered to the surface of TRT blade blade root and scanned, effectively avoid the data error caused by hand shaking or poor contact in traditional manual operation, significantly improve the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of industrial testing equipment technology, and in particular to a blade root testing device for TRT blade production. Background Technology

[0002] Due to the harsh operating environment, complex structure, and immense stress, the blade root of TRT blades becomes a critical inspection area to ensure the safe and stable operation of the equipment. The fir-tree shaped blade root design, in particular, with its wedge-shaped tooth structure, allows the blade to be securely fitted into the grooves of the rotor rim along the rotor axis. However, this structure faces the problem of stress concentration in practical applications, especially at the first tooth root, where not only does it bear the greatest stress, but it is also highly susceptible to stress corrosion and fatigue cracking.

[0003] Currently, the inspection of such blade roots typically relies on ultrasonic flaw detection equipment. During the inspection process, the operator needs to closely adhere the ultrasonic transmitter to the blade root surface and move it slowly to complete the scanning process. The data fed back after the ultrasonic waves penetrate the blade root material is displayed on a digital display panel for analysis. However, this method is highly dependent on manual operation, and instability can easily occur during manual scanning, such as poor contact between the transmitter and the blade root surface or uneven scanning speed. These problems can lead to inaccurate data acquisition, thus requiring multiple repeated scans to verify the accuracy of the results.

[0004] To address the aforementioned issues, it is necessary to propose a blade root inspection device for TRT blade production. To improve inspection efficiency and data accuracy, and to ensure that the ultrasonic transmitter can smoothly and consistently adhere to the blade root surface for scanning, the device aims to reduce the impact of human factors on the inspection results. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a blade root detection device for TRT blade production, which can ensure that the ultrasonic transmitter can smoothly and consistently adhere to the blade root surface for scanning, so as to reduce the influence of human factors on the detection results.

[0006] The technical solution is as follows: A blade root detection device for TRT blade production includes a base plate, a support, a housing, an electric push rod, a mounting block, a sliding frame one, an ultrasonic detector, a fixing component, a limiting module, a sliding frame two, a guide rail, and a moving component. The base plate is equipped with a support, and the support is equipped with a housing. An electric push rod with its telescopic end facing forward is installed inside the housing. A mounting block is connected to the telescopic end of the electric push rod. The sliding frame one is slidably mounted on the mounting block. Ultrasonic detectors for TRT blade root detection are arranged at the bottom of the sliding frame one. A fixing component is provided on the base plate. A limiting module for placing the TRT blade root is detachably mounted on the fixing component. The sliding frame two is slidably mounted on the front end of the housing. Guide rails are symmetrically arranged at the bottom of the sliding frame two. The guide rails abut against the limiting module. Moving components that contact and cooperate with the guide rail on the same side are provided on both sides of the sliding frame one.

[0007] Furthermore, the fixing component includes a guide frame, a locking block, and an elastic element. The guide frame is symmetrically arranged on the base plate, and a locking block that engages with the limiting module is slidably arranged inside each guide frame. An elastic element is arranged between the locking blocks on both sides.

[0008] Furthermore, the movable component includes a mounting shaft and a movable wheel. Mounting shafts are provided on both sides of the sliding frame, and movable wheels are rotatably mounted on each mounting shaft. The movable wheels are in contact with the guide rail on the same side.

[0009] Furthermore, it also includes a counterweight, which is provided at the lower end of the sliding frame.

[0010] Furthermore, it also includes a support block, on which a support block for supporting the end of the TRT blade is slidably disposed on the base plate.

[0011] Furthermore, the moving wheels are flush with the bottom of the ultrasonic detector.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model uses an electric push rod to drive the first sliding frame to move, and combined with the rolling structure of the guide rail and the moving wheels, enables the ultrasonic detector to smoothly and evenly adhere to the surface of the TRT blade root for scanning. This design effectively avoids data errors caused by hand tremors or poor contact in traditional manual operation, significantly improving the accuracy of the detection results. The entire detection process is automatically completed by the electric push rod for advancement and positioning, reducing manual intervention and improving detection efficiency, making it particularly suitable for batch detection scenarios.

[0013] 2. The limiting module of this utility model adopts a detachable installation structure. Through the design of the sliding block, the corresponding limiting module can be flexibly replaced according to the root shape of different TRT blades, thereby enhancing the versatility and adaptability of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the base plate, bracket, and housing components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the guide frame, locking block, and elastic element of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the sliding frame and guide rail components of this utility model.

[0018] Reference numerals: 1. Base plate, 2. Bracket, 3. Housing, 4. Electric push rod, 5. Mounting block, 6. Sliding frame one, 7. Ultrasonic detector, 8. Guide frame, 9. Locking block, 10. Elastic element, 11. Limiting module, 12. TRT blade, 13. Sliding frame two, 14. Guide rail, 15. Mounting shaft, 16. Moving wheel, 17. Counterweight block, 18. Support block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example: A leaf root detection device for TRT blade production, such as... Figures 1-4As shown, the device includes a base plate 1, a bracket 2, a housing 3, an electric push rod 4, a mounting block 5, a sliding frame 6, an ultrasonic detector 7, a fixing component, a limiting module 11, a second sliding frame 13, a guide rail 14, and a moving component. The bracket 2 is fixedly mounted on the rear top of the base plate 1. The housing 3 is mounted on top of the bracket 2. The housing 3 has a hollow interior and houses an electric push rod 4 with its telescopic end facing forward. A mounting block 5 is connected to the telescopic end of the electric push rod 4. The first sliding frame 6 is slidably mounted on the mounting block 5, allowing it to slide freely up and down. Ultrasonic detectors 7 for detecting the root region of the TRT blade 12 are arranged at the bottom of the first sliding frame 6. The detection end of the ultrasonic detector 7 faces downwards and is used for high-precision non-destructive testing of the root region of the TRT blade 12. The point distribution method enables comprehensive scanning of different positions of the TRT blade 12 root, improving the comprehensiveness and accuracy of the detection. A fixing component is provided on the base plate 1, and a limiting module 11 for placing the TRT blade 12 root is detachably installed on the fixing component. The limiting module 11 has a positioning groove on its rear side and adopts a modular design, which can be replaced according to different blade root structures, thereby improving the versatility and adaptability of the equipment. A sliding frame 2 13 is slidably installed on the front end of the housing 3. The sliding frame 2 13 can slide up and down along the end of the housing 3. The bottom of the sliding frame 2 13 is symmetrically provided with guide rails 14. The guide rails 14 abut against the limiting module 11 to form a guiding path, ensuring the stability and consistency during the sliding process. On both sides of the sliding frame 1 6, there are moving parts that contact and cooperate with the guide rails 14 on the same side.

[0021] Furthermore, the guide rail 14 gradually rises from back to front, with a straight section at its front end. This design allows the mounting block 5 and all its components to move forward synchronously under the push of the electric push rod 4. During this process, the moving parts on both sides of the sliding frame 6 roll along the guide rail 14, guiding the sliding frame 6 and the ultrasonic detectors 7 arranged at its bottom to rise smoothly and finally reach directly above the limiting module 11.

[0022] Specifically, as the electric push rod 4 extends, the mounting block 5 drives the sliding frame 6 forward along a predetermined trajectory. The moving wheel 16 rolls smoothly on the guide rail 14, ensuring a smooth transition between the inclined and straight sections of the sliding frame 6 and the ultrasonic detector 7, avoiding any unnecessary vibration or deviation. When the sliding frame 6 reaches the straight section of the guide rail 14, the ultrasonic detector 7 is positioned directly above the root of the TRT blade 12 at the top of the limiting module 11, thus providing stable positioning support for accurate detection. This design not only ensures that the ultrasonic detector 7 can be accurately aligned with the area to be detected but also improves the stability and reliability of the entire detection process.

[0023] like Figure 3 As shown, the fixing component includes a guide frame 8, a locking block 9, and an elastic element 10. The guide frame 8 is symmetrically arranged on the base plate 1. The locking block 9 is slidably arranged in the guide frame 8 and engages with the limiting module 11. The elastic element 10 is arranged between the two locking blocks 9. In this embodiment, the elastic element 10 is a spring. The function of the elastic element 10 is to quickly reset after the locking block 9 is released, so that the locking block 9 is firmly embedded in the positioning groove of the limiting module 11, thereby realizing the stable locking of the limiting module 11.

[0024] like Figure 4 As shown, the moving component includes a mounting shaft 15 and a moving wheel 16. Mounting shafts 15 are provided on both sides of the sliding frame 6, and moving wheels 16 are rotatably mounted on the mounting shafts 15. The moving wheels 16 are in contact with the guide rail 14 on the same side, and the moving wheels 16 are flush with the bottom of the ultrasonic detector 7. The moving wheels 16 serve as support and guidance elements during the movement of the sliding frame 6, and can roll smoothly along the guide rail 14 to ensure that the sliding frame 6 and the ultrasonic detector 7 on it maintain a stable posture during the movement.

[0025] like Figure 2 As shown, it also includes a counterweight 17. A counterweight 17 is also provided at the lower end of the sliding frame 6. The function of the counterweight 17 is to use its own weight to help the sliding frame 6 maintain a stable downward trend on the inclined guide rail 14 and to make the moving wheel 16 closely fit the surface of the guide rail 14.

[0026] like Figure 3 As shown, it also includes a support block 18, which is slidably disposed on the base plate 1 to support the end of the TRT blade 12.

[0027] During use, the appropriate limiting module 11 can be selected according to actual needs. Then, squeeze the two side blocks 9 to make them slide inward along the guide frame 8 and close. At this time, the elastic element 10 deforms. After the limiting module 11 is aligned with the guide frame 8, release the block 9. The elastic element 10 returns to its original shape, causing the block 9 to spring back and firmly lock into the corresponding position of the limiting module 11, thereby stably fixing the limiting module 11 to the base plate 1. Under the action of gravity, the sliding frame 13 always has a downward trend. The guide rails 14 on both sides of its bottom are embedded into the top of the limiting module 11, forming a forward-extending channel. At this time, the root part of the TRT blade 12 to be tested can be placed in the limiting module 11, and the exposed blade is naturally placed on the support block 18. After the TRT blade 12 is fully in place, the root of the blade can be tested. First, start the electric push rod 4 to extend its telescopic end and push the relevant components forward. Under the influence of gravity and the counterweight 17, the sliding frame 6 begins to fall, causing the moving wheels 16 on both sides to press firmly against the guide rail 14. As the electric push rod 4 continues to extend, the moving wheels 16 roll along the guide rail 14, driving the sliding frame 6 and related components to move synchronously. During this process, the moving wheels 16 rotate around the mounting shaft 15, and in coordination with the tilt angle of the guide rail 14, the sliding frame 6 slides smoothly on the mounting block 5, ensuring stable and smooth overall operation. Finally, the entire sliding frame 6 moves to the end of the guide rail 14, and at the same time, the ultrasonic detector 7 reaches the top of the limit module 11 to scan and detect the TRT blade 12 placed therein, effectively detecting its fatigue damage, thereby ensuring the accuracy and reliability of the detection work.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A blade root detection device for TRT blade production, comprising a base plate (1), characterized in that, It also includes a bracket (2), the top of the base plate (1) is provided with a bracket (2), the top of the bracket (2) is provided with a housing (3), an electric push rod (4) with its telescopic end facing forward is installed in the housing (3), an installation block (5) is connected to the telescopic end of the electric push rod (4), a sliding frame one (6) is slidably provided on the installation block (5), an ultrasonic detector (7) for detecting the root of the TRT blade (12) is arranged at the bottom of the sliding frame one (6), a fixing component is provided on the base plate (1), a limiting module (11) for placing the root of the TRT blade (12) is detachably provided on the fixing component, a sliding frame two (13) is slidably provided on the front end of the housing (3), a guide rail (14) is symmetrically provided at the bottom of the sliding frame two (13), the guide rail (14) abuts and cooperates with the limiting module (11), and a moving component is provided on both sides of the sliding frame one (6) to contact and cooperate with the guide rail (14) on the same side.

2. The leaf root detection device for TRT blade production according to claim 1, characterized in that, The fixing component includes a guide frame (8), a locking block (9) and an elastic element (10). The guide frame (8) is symmetrically arranged on the base plate (1). The locking block (9) that engages with the limiting module (11) is slidably arranged in the guide frame (8). The elastic element (10) is arranged between the locking blocks (9) on both sides.

3. The leaf root detection device for TRT blade production according to claim 2, characterized in that, The moving part includes a mounting shaft (15) and a moving wheel (16). Mounting shafts (15) are provided on both sides of the sliding frame (6). Moving wheels (16) are rotatably provided on the mounting shafts (15). The moving wheels (16) are in contact with the guide rail (14) on the same side.

4. The leaf root detection device for TRT blade production according to claim 3, characterized in that, It also includes a counterweight (17), and a counterweight (17) is also provided at the lower end of the sliding frame (6).

5. The leaf root detection device for TRT blade production according to claim 4, characterized in that, It also includes a support block (18), on which the base plate (1) is slidably provided for supporting the end of the TRT blade (12).

6. The leaf root detection device for TRT blade production according to claim 5, characterized in that, The movable wheel (16) is flush with the bottom of the ultrasonic detector (7).

Images