Turbine blade microdefect detection device
By designing fixing devices and rotating devices that adapt to different inner diameters, the adaptability problem of the turbine blade detection device is solved, the stable fixation and multi-angle detection of the turbine blades are achieved, and the accuracy of the detection results and the defect identification accuracy are improved.
Patent Information
- Application Number
- CN202422816442.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing turbine blade detection devices cannot adapt to turbines with different inner diameters, resulting in complicated operation and loose fixation, which affects the accuracy and reliability of the detection results.
A turbine blade micro-defect detection device was designed, which includes a fixing device and a rotating device. Through the combination of threaded rods, sliders and inner support blocks, it can achieve stable fixation of turbines with different inner diameters. The rotating device can perform multi-angle detection, and a multi-modal sensor group is used for data acquisition and analysis.
It achieves stable fixation of turbine blades with different inner diameters, reduces displacement and looseness during the detection process, improves the accuracy and reliability of the detection results, and enhances the accuracy of defect identification.
Smart Images
Figure CN223449918U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to turbine blade detection technical field, concretely is a turbine blade microdefect detection device. BACKGROUND
[0002] It is known that turbine blade as the core component of aeroengine, gas turbine and other equipment, its quality is directly related to the safety and reliability of the whole machine, turbine blade is usually installed on the turbine disc or turbine rotor, forms the key working part of turbine, and the design and manufacture of turbine blade are very precise because they bear extremely high temperature, pressure and centrifugal force under the condition of high speed rotation, and the shape, material and surface treatment of these blades will directly affect the performance and efficiency of turbine.
[0003] In the detection process of turbine blade, the existing fixing device can only adapt to the turbine with specific inner diameter, when the turbine blade with different inner diameter turbine outer wall needs to be detected, the fixing device must be replaced or adjusted, which not only increases the complexity and time cost of operation, but also may cause the fixing to be not firm, affects the accuracy of detection result, and the traditional clamp fixing mode is easy to displace or loosen in the detection process, and the instability will cause the deviation of detection data, affects the precision and reliability of defect identification. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a turbine blade microdefect detection device.
[0006] (II) technical scheme
[0007] To achieve the above object, the utility model provides the following technical scheme: A turbine blade micro -defect detection device, including work table, detection station, control system, data processing unit, multimode sensor group, fixing device and rotating device, the top wall rear end of work table is installed with support frame, the top wall of support frame is installed with control system, the bottom wall of support frame is installed with data processing unit, the bottom wall of data processing unit is installed with multimode sensor group, the top wall of work table is installed with detection station through rotating device, the top of detection station is installed with fixing device, fixing device includes rectangular slot, threaded rod, sliding block, inner support block, first motor, driven bevel gear and driving bevel gear, the top wall of detection station is circular and is provided with four groups of rectangular slots, four group rectangular slot all rotatably installs threaded rod, threaded rod is installed sliding block, the top wall of sliding block is installed with inner support block, the middle part of detection station is provided with cavity, the first motor is installed in the cavity, the output of first motor is installed with driving bevel gear, four group threaded rod is installed with driven bevel gear in the end close to the cavity, driving bevel gear and four group driven bevel gear meshing connection.
[0008] In order to facilitate the accurate adjustment of the horizontal angle of the worm wheel blade, the utility model improves that, the rotating device includes second motor, driving gear, driven gear and rotating shaft, the bottom wall of the workbench is installed with the second motor, the output end of the second motor is installed with the driving gear, the one side of the driving gear is meshed with the driven gear, the top end of the driven gear is installed with the rotating shaft, and the top end of the rotating shaft penetrates the top wall of the workbench and is fixedly connected with the bottom wall of the detection station.
[0009] In order to adapt to the inner side wall of the turbine, the utility model improves that, the inner support block is arc-shaped design.
[0010] In order to prevent the inner support block from damaging the inner side wall of the turbine, the utility model improves that, a rubber pad is installed on the outer wall of the inner support block.
[0011] In order to improve the skid resistance of the rubber pad, the utility model improves that, anti-skid convex points are installed on the outer wall of the rubber pad.
[0012] In order to ensure the structural strength of the support frame, the utility model improves that, the support frame is L-shaped design.
[0013] In order to ensure the support stability of the workbench, the utility model improves that, support legs are installed at the four corners of the bottom end of the workbench.
[0014] In order to ensure the stability and accuracy of the operation of the first motor and the second motor, the utility model improves that, the first motor and the second motor are both servo motors.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the turbine blade micro-defect detection device has the following beneficial effects:
[0017] The turbine blade micro-defect detection device, through the fixing device, the threaded rod drives the slider to adjust the position of the inner support block, and the device can adapt to turbine blades of different inner diameters, which means that it is not only suitable for a single type of turbine, but also can be widely applied to the detection of turbine blades of various specifications, greatly expanding the application range of the equipment. The design of the four inner support blocks can ensure that the turbine remains stable during the detection process, and even during the adjustment of the detection table, displacement or loosening will not occur, which is crucial for ensuring the accuracy of the turbine blade detection results. The stable fixing state helps the multi-modal sensor group to obtain clearer and more accurate detection data, thereby improving the precision and reliability of defect identification.
[0018] The turbine blade micro-defect detection device, through the rotation device, the rotation device allows the detection table to be adjusted in rotation, ensuring that the multi-modal sensor group can detect the turbine blade from multiple angles, which not only helps to discover potential defects in each part of the turbine blade, but also reduces the detection blind area and improves the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the half-cut three-dimensional structure of the detection table of the utility model;
[0021] Figure 3 It is a schematic diagram of the enlarged structure of the local A of the utility model; Figure 2
[0022] Figure 4 It is a schematic diagram of the front plane structure of the utility model.
[0023] In the figure: 1, workbench; 2, detection table; 3, control system; 4, data processing unit; 5, multi-modal sensor group; 6, support frame; 7, rectangular groove; 8, threaded rod; 9, slider; 10, inner support block; 11, first motor; 12, driven bevel gear; 13, driving bevel gear; 14, second motor; 15, driving gear; 16, driven gear; 17, shaft; 18, rubber pad; 19, anti-skid convex point; 20, support leg. DETAILED DESCRIPTION
[0024] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0025] Please refer to Figures 1-4A turbine blade micro-defect detection device, comprising a workbench 1, a detection table 2, a control system 3, a data processing unit 4, a multi-modal sensor group 5, a fixing device and a rotating device, a support frame 6 is installed at the rear end of the top wall of the workbench 1, the control system 3 is installed at the top wall of the support frame 6, the data processing unit 4 is installed at the bottom wall of the support frame 6, the multi-modal sensor group 5 is installed at the bottom wall of the data processing unit 4, the detection table 2 is installed at the top wall of the workbench 1 through the rotating device, the fixing device is installed at the top end of the detection table 2, the fixing device comprises a rectangular groove 7, a threaded rod 8, a sliding block 9, an inner support block 10, a first motor 11, a driven bevel gear 12 and a driving bevel gear 13, four groups of rectangular grooves 7 are opened in the top wall of the detection table 2 in a ring shape, the threaded rods 8 are rotatably installed in the four groups of rectangular grooves 7, the threaded rods 8 are installed with the sliding blocks 9, the top wall of the sliding blocks 9 is installed with the inner support blocks 10, a cavity is opened in the middle of the detection table 2, the first motor 11 is installed in the cavity, the output end of the first motor 11 is installed with the driving bevel gear 13, one end of the four groups of threaded rods 8 close to the cavity is sleeved with the driven bevel gear 12, the driving bevel gear 13 and the four groups of driven bevel gears 12 are meshed and connected, in this embodiment, when in use, the turbine is placed on the detection table 2, the control system 3 is turned on, the control device is started, the first motor 11 is started, the four groups of driven bevel gears 12 are driven to rotate through the driving bevel gear 13, the rotation of the driven bevel gear 12 drives the threaded rod 8 to rotate, and then drives the sliding block 9 to move along the rectangular groove 7, when the sliding block 9 moves, the four groups of inner support blocks 10 gradually approach the inner wall of the turbine, and finally the turbine is firmly fixed on the detection table 2, the rotating device is started to drive the detection table 2 to rotate horizontally by 360 degrees, the multi-modal sensor group 5 is integrated with ultrasonic probes, eddy current probes, X-ray CT scanners, laser scatterometers and high-definition cameras and other detection instruments, (since the turbine blade cooperates with the detection table to rotate) the information of the turbine blade on the outer wall of the turbine can be obtained from different angles and dimensions, and a variety of types of defects can be identified at one time, which greatly improves the detection efficiency, the multi-modal sensor group 5 performs multi-position detection on the turbine blade from different angles and positions during the rotation of the detection table 2 (driven by the rotating device), realizes the front omnibearing detection of the turbine blade (after the end, the turbine is placed reversely on the detection table, and the above steps are repeated to detect the back of the turbine blade), the data processing unit 4 collects the data of the sensor group in real time, comprehensively analyzes by using a multi-modal data fusion algorithm, determines the defect position and nature, and the analysis result is displayed on the operation interface through the control system 3, and the operator can view the detailed detection report.
[0026] In actual use, further facilitate the accurate adjustment of the horizontal angle of the worm wheel blade, in this embodiment, the rotating device includes a second motor 14, a driving gear 15, a driven gear 16 and a rotating shaft 17, the bottom wall of the workbench 1 is provided with the second motor 14, the output end of the second motor 14 is provided with the driving gear 15, one side of the driving gear 15 is engaged with the driven gear 16, the top end of the driven gear 16 is provided with the rotating shaft 17, the top end of the rotating shaft 17 penetrates through the top wall of the workbench 1 and is fixedly connected with the bottom wall of the detection table 2, the control system 3 sends instructions, starts the second motor 14, the output end of the second motor 14 drives the driving gear 15 to rotate, the driving gear 15 is engaged with the driven gear 16, the rotating power is transmitted to the driven gear 16, the driven gear 16 drives the rotating shaft 17 to rotate, and then the detection table 2 and the fixed turbine and turbine blade rotate together, the required rotating angle is set through the control system 3, and it is ensured that the multi-modal sensor group 5 can detect the blade from different angles of the turbine blade rotation.
[0027] In actual use, further adapt to the inner side wall of the turbine, in this embodiment, the inner support block 10 is arc-shaped, the inner side wall of the turbine is usually curved, and the arc-shaped inner support block 10 can better fit the inner side wall of the turbine, ensuring good contact and fixation.
[0028] In actual use, further prevent the inner support block 10 from damaging the inner side wall of the turbine, in this embodiment, the outer wall of the inner support block 10 is provided with a rubber pad 18, the rubber pad 18 has soft characteristics, which can reduce the hard contact between the inner support block 10 and the inner side wall of the turbine, and avoid causing scratches, indentations or other damage to the inner side surface of the turbine during fixation.
[0029] In actual use, further improve the slip resistance of the rubber pad 18, in this embodiment, the outer wall of the rubber pad 18 is provided with anti-skid convex points 19, the anti-skid convex points 19 increase the contact points between the rubber pad 18 and the inner side wall of the worm wheel, thereby significantly improving the friction force, which makes the inner support block 10 more stable during fixation, reduces the risk of displacement or shaking of the turbine blade during detection, and the anti-skid convex points 19 can better adapt to different curvatures and roughness of the inner side wall of the turbine, ensuring reliable fixation effect in various situations.
[0030] In actual use, further ensure the structural strength of the support frame 6, in this embodiment, the support frame 6 is designed in an L shape, the L-shaped support frame 6 has stronger rigidity and can withstand greater load and external force, ensuring that it will not deform or break during detection.
[0031] In actual use, further guarantee the stability of the workbench 1, in this embodiment, the bottom end of the workbench 1 is provided with supporting legs 20, four supporting legs 20 can evenly distribute the weight of the workbench 1, ensure that the whole device remains stable during detection, multiple support points can better disperse the stress of the workbench 1, reduce local stress concentration, improve the durability of the overall structure.
[0032] In actual use, further guarantee the stability and accuracy of the first motor 11 and the second motor 14, in this embodiment, the first motor 11 and the second motor 14 are both servo motors, which can control position, speed and torque with high precision, and have good stability, can avoid stall, vibration and other problems, improve the stability and accuracy of the first motor 11 and the second motor 14.
[0033] In order to explain the possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects that can be achieved, etc. of the present application, the specific embodiments listed below are combined with the drawings for detailed description. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.
[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A turbine blade micro-defect detection device, comprising a workbench (1), a detection platform (2), a control system (3), a data processing unit (4), a multimodal sensor group (5), a fixing device and a rotating device, characterized in that: A support frame (6) is installed at the rear end of the top wall of the workbench (1), a control system (3) is installed on the top wall of the support frame (6), the data processing unit (4) is installed on the bottom wall of the support frame (6), the multimodal sensor group (5) is installed on the bottom wall of the data processing unit (4), the detection table (2) is installed on the top wall of the workbench (1) through the rotating device, the top of the detection table (2) is installed with the fixing device, the fixing device includes a rectangular slot (7), a threaded rod (8), a slider (9), an inner support block (10), a first motor (11), a driven bevel gear (12) and an active bevel gear (13), the detection table The top wall of (2) is provided with four groups of rectangular grooves (7) in an annular shape, the threaded rods (8) are rotatably installed in the four groups of rectangular grooves (7), the threaded rods (8) are provided with the sliders (9), the top wall of the sliders (9) is provided with the inner support block (10), a cavity is provided in the middle of the detection table (2), the first motor (11) is provided in the cavity, the output end of the first motor (11) is provided with the active bevel gear (13), the ends of the four groups of threaded rods (8) close to the cavity are sleeved with the driven bevel gears (12), the active bevel gear (13) and the four groups of driven bevel gears (12) are meshed and connected.
2. The device for detecting micro-defects of turbine blades according to claim 1, characterized in that: The rotating device comprises a second motor (14), a driving gear (15), a driven gear (16) and a rotating shaft (17); the second motor (14) is mounted on the bottom wall of the workbench (1); the driving gear (15) is mounted on the output end of the second motor (14); one side of the driving gear (15) is meshedly connected with the driven gear (16); the top end of the driven gear (16) is mounted with the rotating shaft (17); the top end of the rotating shaft (17) passes through the top wall of the workbench (1) and is fixedly connected to the bottom wall of the detection platform (2).
3. The device for detecting micro-defects of turbine blades according to claim 2, characterized in that: The inner support block (10) is designed to be arc-shaped.
4. The turbine blade micro-defect detection device according to claim 3, characterized in that: The outer wall of the inner support block (10) is provided with a rubber pad (18).
5. The device for detecting micro-defects of turbine blades according to claim 4, characterized in that: The outer wall of the rubber pad (18) is provided with anti-skid protrusions (19).
6. The device for detecting micro-defects of turbine blades according to claim 5, characterized in that: The support frame (6) is L-shaped.
7. The device for detecting micro-defects of turbine blades according to claim 6, characterized in that: Support legs (20) are installed at the four corners of the bottom end of the workbench (1).
8. The turbine blade micro-defect detection device according to claim 7, characterized in that: The first motor (11) and the second motor (14) are both servo motors.