Turbine blade clogging inspection and cleaning integrated device

By integrating the design of the working platform and components, the system automates the inspection and cleaning of the film pores of turbine blades, thus solving the problem of low efficiency in manual operation in existing technologies and achieving efficient unblocking and cleaning.

CN117563993BActive Publication Date: 2026-05-08无锡华天燃气轮机有限公司 +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
无锡华天燃气轮机有限公司
Filing Date
2023-11-14
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing technologies, the location of blockages in the film pores of turbine blades and the removal of deposits mainly rely on manual operation, which is labor-intensive and inefficient.

Method used

Design an integrated device for turbine blade blockage inspection and cleaning, including an integrated working platform, a light source module assembly, a film film atom unblocking assembly, and a surface deposit cleaning assembly. The integrated platform is equipped with a light source module for inspecting the blockage of the film film atom. The film film atom unblocking assembly includes a probe for unblocking the film film atom. The surface deposit cleaning assembly includes a robotic arm and a cleaning component for automatically cleaning the deposits.

Benefits of technology

It has achieved automated inspection of air film pore blockage and cleaning of deposits, which has improved work efficiency, reduced manual labor intensity, and ensured the permeability and cleanliness of turbine blades.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117563993B_ABST
    Figure CN117563993B_ABST
Patent Text Reader

Abstract

The application provides a turbine blade blockage inspection and cleaning integrated device, which comprises an integrated work platform, a light source module assembly, an air film hole dredging assembly, a surface attachment cleaning assembly and a control system, and the turbine blade is placed on the integrated work platform; the light source module assembly is arranged on the integrated work platform, the light source module is used for checking the air film hole blockage condition of the turbine blade, so as to determine the air film hole permeability state; the air film hole dredging assembly is arranged on the integrated work platform, the air film hole dredging assembly comprises a holding piece and a probe, and the probe is suitable for being arranged in the air film hole of the turbine blade to dredge the air film hole; the surface attachment cleaning assembly is arranged on the integrated work platform to clean the surface attachment of the turbine blade; and the control system is electrically connected with the surface attachment cleaning assembly to control the operation of the surface attachment cleaning assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of aero-engine and gas turbine blade maintenance technology, and in particular to a device for cleaning surface deposits and checking and cleaning blocked air film pores on turbine blades after use. Background Technology

[0002] Cracks are a common defect in high-pressure turbine blades during operation, often caused by the accumulation of deposits on the turbine surface and localized blockage of the film cooling pores, leading to localized overheating and crack formation. Therefore, it is essential to locate the blockages in the film cooling pores of the turbine blades, clear the blockages, and remove any deposits.

[0003] Currently, the determination of the location of the film pore blockage, the unblocking of the blockage, and the removal of deposits on turbine blades are mainly done manually by using a silver needle to penetrate and confirm its blockage. This method is labor-intensive and inefficient. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that in the prior art, the determination of the location of the film pore blockage of turbine blades, the unblocking of the blockage and the removal of the deposits are mainly confirmed by manually penetrating with a silver needle to confirm its unblocking, which is labor-intensive and inefficient.

[0005] Therefore, the present invention provides an integrated device for turbine blade blockage inspection and cleaning, comprising:

[0006] An integrated working platform, on which turbine blades are mounted;

[0007] A light source module assembly is located on the integrated working platform. The light source module is used to check the blockage of the film cooling pores on the turbine blades in order to determine the permeability of the film cooling pores.

[0008] A film film pore unblocking assembly is provided on the integrated working platform. The film film pore unblocking assembly includes a gripper and a probe. The probe is adapted to penetrate the film film pores on the turbine blade to unblock the film film pores.

[0009] A surface deposit cleaning assembly is mounted on the integrated work platform to clean deposits on the surface of turbine blades;

[0010] The control system is electrically connected to the surface deposit cleaning assembly to control the operation of the surface deposit cleaning assembly.

[0011] Optionally, the surface deposit cleaning assembly includes:

[0012] Blade clamps are used to secure the turbine blades;

[0013] A robotic arm and a cleaning component, the robotic arm being connected to the cleaning component, the robotic arm being configured to be controlled by the control system to drive the cleaning component to move along the turbine blade profile for cleaning along the blade profile;

[0014] Dust collectors are used to absorb and remove loose debris after the turbine blades have been cleaned.

[0015] Optionally, the blade clamp includes;

[0016] The base plate is fixedly connected to the integrated work platform;

[0017] A positioning plate is fixedly connected to the base plate;

[0018] The moving blade clamping plate is slidably connected to the base plate, and a moving blade clamping cavity is provided between the positioning plate and the moving blade clamping plate;

[0019] The first top fastener is movably connected to one end of the base plate;

[0020] The clamping cavity is suitable for placing the root of the moving blade, and the first top fastener is configured to rotate under the action of an external force to drive the moving blade clamping plate to move toward the positioning plate to clamp the root of the moving blade.

[0021] Optionally;

[0022] The moving blade clamping plate is provided with a groove on one side of the moving blade clamping cavity that is adapted to the root of the moving blade;

[0023] The blade clamp also includes a positioning post, which is disposed in the moving blade clamping cavity and fixedly connected to the base plate. The positioning post is adapted to abut against the leading edge of the moving blade.

[0024] Optionally, the blade clamp further includes;

[0025] The second top fastener is movably connected to the other end of the base plate, and the second top fastener and the first top fastener are located on opposite sides of the positioning plate.

[0026] A guide vane clamp is slidably connected to the base plate, and a guide vane clamping cavity is provided between the guide vane clamp and the positioning plate;

[0027] A positioning pin is fixedly connected to the positioning plate and disposed in the guide vane clamping cavity. The positioning pin is adapted to abut against the front end of the guide vane root positioning hole of the turbine blade.

[0028] The second top fastener is configured to rotate under external force to drive the guide vane clamp to move toward the positioning plate to clamp the guide vane.

[0029] Optionally, the blade clamp is configured to clamp the turbine blade, and then the turbine blade and the robotic arm are coarsely positioned so that the cleaning component can accurately clean the turbine blade.

[0030] Optionally, the cleaning path of the cleaning component includes the leading edge portion of the moving leaf, the leading edge portion of the moving leaf with leaf basin, the leading edge portion of the guide leaf, and the leading edge portion of the guide leaf with leaf basin.

[0031] Optionally, the probe includes a straight probe and a barbed probe, wherein the head of the straight probe is provided with a threaded pattern.

[0032] Optionally, the gripping element includes:

[0033] The housing contains a power supply and a controller;

[0034] A driving element is connected to the housing, and the driving end of the driving element is connected to the probe to drive the probe to rotate about its axis.

[0035] Optionally, the light source module assembly includes:

[0036] Light-emitting control components;

[0037] The light emitter is electrically connected to the light emission control component;

[0038] The light-emitting segment is electrically connected to the light emitter, and the light-emitting segment is made of a flexible material to facilitate entry into the turbine blade.

[0039] The integrated device for turbine blade blockage inspection and cleaning provided by this invention has the following advantages:

[0040] 1. This invention provides an integrated device for inspecting and cleaning turbine blade blockages, comprising an integrated working platform, a light source module assembly, a film film atomizer unblocking assembly, a surface deposit cleaning assembly, and a control system. The integrated working platform is adapted to hold turbine blades; the light source module assembly is disposed on the integrated working platform and is used to inspect the blockage of film film atomizers on the turbine blades to determine the permeability of the film film atomizers; the film film atomizer unblocking assembly is disposed on the integrated working platform and includes a gripper and a probe, the probe being adapted to penetrate the film film atomizers on the turbine blades to unblock the film film atomizers; the surface deposit cleaning assembly is disposed on the integrated working platform to clean the surface deposits on the turbine blades; the control system is electrically connected to the surface deposit cleaning assembly to control the operation of the surface deposit cleaning assembly.

[0041] This integrated turbine blade blockage inspection and cleaning device uses a light source module to inspect the blockage of the film film pores on turbine blade parts and components, determining the permeability of the film film pores and assisting in post-repair inspection and maintenance. The surface deposit cleaning component cleans the surface deposits on the turbine blades after different test conditions and test durations. The film film pore unblocking component manually or electrically unblocks and cleans film film pores that are significantly smaller than the design diameter. By integrating the light source module, film film pore unblocking component, surface deposit cleaning component, and control system on an integrated work platform, the automatic cleaning system is controlled.

[0042] 2. This invention provides an integrated device for inspecting and cleaning turbine blade blockages. The surface attachment cleaning component includes a blade clamp, a robotic arm, a cleaning component, and a dust removal component. The blade clamp is used to fix the turbine blade. The robotic arm is connected to the cleaning component and is configured to be controlled by the control system to drive the cleaning component to move along the turbine blade profile for cleaning. The dust removal component is used to adsorb and clean the detached attachments after the turbine blade is cleaned.

[0043] This integrated turbine blade blockage inspection and cleaning device, by setting up blade clamps, robotic arms, cleaning components, and dust removal components, not only fixes the turbine blades, but also achieves coarse positioning of the turbine blades and robotic arms after the turbine blades are correctly clamped in the blade clamps.

[0044] 3. This invention provides an integrated device for turbine blade blockage inspection and cleaning. The blade clamp includes a base plate, a positioning plate, a moving blade clamping plate, and a first top fastener. The base plate is fixedly connected to the integrated working platform; the positioning plate is fixedly connected to the base plate; the moving blade clamping plate is slidably connected to the base plate, and a moving blade clamping cavity is provided between the positioning plate and the moving blade clamping plate; the first top fastener is movably connected to one end of the base plate; wherein, the clamping cavity is suitable for placing the moving blade root, and the first top fastener is configured to rotate under the action of an external force to drive the moving blade clamping plate to move towards the positioning plate to clamp the moving blade root.

[0045] This integrated turbine blade blockage inspection and cleaning device can fix the moving blade by setting a base plate, a positioning plate, a moving blade clamping plate, and a first top fastener.

[0046] 4. The present invention provides an integrated device for checking and cleaning turbine blade blockage. The moving blade clamp is provided with a groove adapted to the root of the moving blade on one side of the moving blade clamping cavity. The blade clamp also includes a positioning post, which is disposed in the moving blade clamping cavity and fixedly connected to the base plate. The positioning post is adapted to abut against the leading edge of the moving blade.

[0047] This integrated turbine blade blockage inspection and cleaning device features a positioning post located within the moving blade clamping cavity and fixedly connected to the base plate. The positioning post abuts against the leading edge of the moving blade to secure its installation position. During installation, the moving blade is positioned so that its leading edge contacts the positioning post. The toothed base at the blade root engages with the moving blade clamping plate and the positioning plate. Rotating the first top fastener manually clamps the moving blade clamping plate and the positioning plate at the blade root.

[0048] 5. The present invention provides an integrated device for turbine blade blockage inspection and cleaning, wherein the cleaning path of the cleaning component includes the leading edge portion of the moving blade, the leading edge portion of the moving blade with blade basin, the leading edge portion of the guide blade, and the leading edge portion of the guide blade with blade basin.

[0049] This integrated turbine blade blockage inspection and cleaning device, by setting the cleaning path of the cleaning component including the leading edge of the moving blade, the leading edge of the moving blade with blade basin, the leading edge of the guide blade, and the leading edge of the guide blade with blade basin, can effectively clean the moving blade and the guide blade. Attached Figure Description

[0050] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0051] Figure 1 This is a schematic structural view of the robotic arm in the integrated turbine blade blockage inspection and cleaning device provided in an embodiment of the present invention.

[0052] Figure 2 This is a schematic structural view of the blade clamp in the integrated device for turbine blade blockage inspection and cleaning provided in an embodiment of the present invention;

[0053] Figure 3 This is a schematic view of the blade clamp in another direction of the integrated turbine blade blockage inspection and cleaning device provided in an embodiment of the present invention;

[0054] Figure 4 This is a schematic structural view of the light source module component in the turbine blade blockage inspection and cleaning integrated device provided in an embodiment of the present invention;

[0055] Figure 5 This is a schematic structural view of the film film pore unblocking component in the integrated device for turbine blade blockage inspection and cleaning provided in an embodiment of the present invention.

[0056] Figure 6These are schematic views of two probe structures in the integrated turbine blade blockage inspection and cleaning device provided in an embodiment of the present invention.

[0057] Figure 7 This is a schematic diagram of a cleaning process in the integrated turbine blade blockage inspection and cleaning device provided in an embodiment of the present invention;

[0058] Figure 8 This is a schematic diagram of another cleaning process of the cleaning component in the integrated turbine blade blockage inspection and cleaning device provided in an embodiment of the present invention;

[0059] Figure 9 The movement trajectory of the cleaning component cleaning the leading edge portion of the moving blade in the integrated turbine blade blockage inspection and cleaning device provided in the embodiments of the present invention;

[0060] Figure 10 The movement trajectory of the cleaning component cleaning the leading edge of the moving blade and the blade basin portion in the integrated turbine blade blockage inspection and cleaning device provided in the embodiments of the present invention;

[0061] Figure 11 The movement trajectory of the cleaning component cleaning the leading edge portion of the guide vane in the integrated turbine blade blockage inspection and cleaning device provided in the embodiments of the present invention;

[0062] Figure 12 The movement trajectory of the cleaning component cleaning the guide vane leading edge and blade basin portion in the turbine blade blockage inspection and cleaning integrated device provided in the embodiments of the present invention.

[0063] Explanation of reference numerals in the attached figures:

[0064] 1-Integrated work platform;

[0065] 21-Light-emitting control component; 22-Light emitter; 23-Light-emitting segment; 24-Connector;

[0066] 31-Holder; 32-Probe;

[0067] 41-Blade clamp; 411-Base plate; 412-Positioning plate; 413-Moving blade clamp; 414-First top fastener; 415-Positioning column; 416-Second top fastener; 417-Guide blade clamp; 42-Robotic arm; 43-Cleaning component;

[0068] 5-Moving leaves;

[0069] 6-Guide vane. Detailed Implementation

[0070] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0071] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

[0072] Example

[0073] This embodiment provides an integrated device for turbine blade blockage inspection and cleaning, including an integrated working platform 1, a light source module assembly, a film pore unblocking assembly, a surface deposit cleaning assembly, and a control system.

[0074] In this embodiment, as Figures 1 to 3 As shown, the integrated work platform 1 is used to fix the surface attachment cleaning assembly. Specifically, the surface attachment cleaning assembly includes a blade clamp 41, a robotic arm 42, a cleaning component 43, and a dust removal component (not shown in the figure). The blade clamp 41 is fixedly connected to the integrated work platform 1 and is used to fix the turbine blades, which include moving blades 5 and guide blades 6. The fixed end of the robotic arm 42 is also fixedly connected to the integrated work platform 1, and the driving end of the robotic arm 42 is fixedly connected to the cleaning component 43. The robotic arm 42 is used to drive the cleaning component 43 to move on the surface of the turbine blades to clean the surface of the turbine blades. The dust removal component is a portable handheld vacuum cleaner in the prior art, which can collect the dust generated during the polishing process of the cleaning component 43.

[0075] In this embodiment, as Figure 2 and Figure 3As shown, the blade clamp 41 includes a base plate 411, a positioning plate 412, a moving blade clamping plate 413, a first top fastener 414, a positioning post 415, a second top fastener 416, and a guide blade clamping plate 417. The base plate 411 is fixedly connected to the integrated working platform 1, the positioning plate 412 is fixedly connected to the base plate 411, the moving blade clamping plate 413 is slidably connected to the base plate 411, a moving blade clamping cavity is provided between the positioning plate 412 and the moving blade clamping plate 413, and the first top fastener 414 is movably connected to one end of the base plate 411. The moving blade clamping cavity is suitable for placing the root of the moving blade 5, and the first top fastener 414 is configured to rotate under external force to drive the moving blade clamping plate 413 to move towards the positioning plate 412 to clamp the root of the moving blade 5.

[0076] Specifically, such as Figure 2 and Figure 3 As shown, the positioning plate 412 includes two plates, left and right. The upper surfaces of both sides of the base plate 411 are provided with a plate-shaped protrusion. Two guide posts are fixed between the right side plate of the positioning plate 412 and the right side plate-shaped protrusion of the base plate 411. The moving blade clamping plate 413 passes through the surface of the two guide posts and can slide on the surface of the two guide posts. The first top fastener 414 is a bolt. The bolt passes through the threaded hole on the right side plate-shaped protrusion of the base plate 411. By tightening the bolt, the end of the bolt abuts against the right side surface of the moving blade clamping plate 413 and pushes the moving blade clamping plate 413 to move towards the moving blade 5 until the moving blade clamping plate 413 and the right side plate of the positioning plate 412 clamp the root of the moving blade 5.

[0077] In this embodiment, as Figure 2 and Figure 3 As shown, the left side surface of the moving blade clamping plate 413 and the right side surface of the right side plate of the positioning plate 412 are both provided with grooves that fit the root of the moving blade 5. The blade clamp 41 also includes a positioning post 415, which is located in the moving blade clamping cavity and fixedly connected to the base plate 411. The positioning post 415 is used to abut against the leading edge of the moving blade 5 to fix the installation position of the moving blade 5. During installation, the moving blade 5 is installed in such a direction that the leading edge of the moving blade 5 contacts the positioning post 415. The toothed base at the root of the moving blade 5 meshes with the moving blade clamping plate 413 and the positioning plate 412. The first top fastener 414 is rotated, and the moving blade clamping plate 413 is clamped at the root of the moving blade 5 by manually rotating the first top fastener 414.

[0078] In this embodiment, as Figure 2 and Figure 3 As shown, the second top fastener 416 is movably connected to the left end of the base plate 411, and the second top fastener 416 and the first top fastener 414 are located on opposite sides of the positioning plate 412; the guide vane clamping plate 417 is slidably connected to the base plate 411, and a guide vane clamping cavity is provided between the guide vane clamping plate 417 and the positioning plate 412. The second top fastener 416 is configured to rotate under external force to drive the guide vane clamping plate 417 to move towards the positioning plate 412 to clamp the guide vane 6.

[0079] In some alternative embodiments, two guide posts are fixed between the left side plate of the positioning plate 412 and the left side plate-shaped protrusion of the base plate 411. The guide vane clamp 417 passes through the surface of the two guide posts and can slide on the surface of the two guide posts. The second top fastener 416 is a bolt, which passes through the threaded hole on the left side plate-shaped protrusion of the base plate 411. By tightening the bolt, the end of the bolt abuts against the left side surface of the guide vane clamp 417 and pushes the guide vane clamp 417 to move in the direction of the guide vane 6 until the guide vane clamp 417 and the left side plate of the positioning plate 412 clamp the root of the guide vane 6.

[0080] In some alternative embodiments, the guide vane 6 has a root positioning hole at its root, and a positioning pin (not shown in the figure) is provided on the left side plate surface of the positioning plate 412. During installation, the front end of the root positioning hole of the guide vane 6 is pressed tightly against the positioning pin, and the installation direction of the guide vane 6 is such that the leading edge of the guide vane 6 is close to the positioning pin. The right end of the mounting base at the root of the guide vane 6 is placed flat on the table surface of the left side plate of the positioning plate 412, and the left side of the mounting base is placed on the arc surface on the right side of the guide vane clamping plate 417. The guide vane clamping plate 417 and the positioning plate 412 are clamped at the root of the guide vane 6 by manually rotating the second top fastener 416.

[0081] In this embodiment, the moving blade clamp 413, the positioning plate 412, and the guide blade clamp 417 are all made of non-metallic flexible materials on the contact side with the turbine blade. Special clamps are designed for different types of turbine blades, and the material contact surface is customized according to the blade shape clamping position to avoid point-to-surface contact force and prevent physical damage to the surface of the turbine blade product.

[0082] In this embodiment, the blade clamp 41 is in the position during installation. Figure 1 Below the robotic arm 42, the robotic arm 42 is used to drive the cleaning component 43 to move on the surface of the turbine blade to clean the surface of the turbine blade, which includes the aforementioned moving blade 5 and guide blade 6.

[0083] In this embodiment, Figure 7 and Figure 8 The diagram shows the cleaning process of the turbine blade by the cleaning component 43 in the turbine blade blockage inspection and cleaning integrated device provided in this embodiment. The cleaning component 43 is an electric polishing pen and a cleaning brush head connected to it. The cleaning brush head is a sandpaper roller brush head. The sandpaper roller is made of multiple layers of sandpaper and has a certain degree of flexibility. When the electric polishing pen drives the brush head to rotate and stick to the surface of the turbine blade, the surface deposits of the turbine blade can be cleaned.

[0084] In this embodiment, the cleaning path of the cleaning component 43 includes the leading edge portion of the moving blade, the leading edge portion of the moving blade with added leaf basin, the leading edge portion of the guide blade, and the leading edge portion of the guide blade with added leaf basin. Wherein, Figure 9The cleaning component 43 cleans the movement trajectory of the leading edge portion of the moving blade in this embodiment; Figure 10 The cleaning component 43 in this embodiment cleans the movement trajectory of the leading edge of the moving blade and the leaf basin portion; Figure 11 The movement trajectory of the cleaning component 43 cleaning the leading edge of the guide vane in this embodiment; Figure 12 The movement trajectory of the guide vane leading edge and leaf basin portion is cleaned by the cleaning component 43 in this embodiment. Figure 9 and Figure 11 These are the paths on the horizontal planes of the moving blade 5 and the guide blade 6, respectively. The paths are divided into path 1 and path 2. Figure 10 and Figure 12 This refers to the path perpendicular to the moving blade 5 and the guide blade 6. In actual operation, trajectory 1 is path 1, but trajectory 2 can also be used, which is path 1 plus path 2.

[0085] In this embodiment, as Figure 10 and Figure 12 As shown, due to the special shape of the turbine blades, the cleaning process of the cleaning component 43 is a layer-by-layer brushing. Depending on the size of the cleaning component 43, there are a total of 8 layers for cleaning the turbine blades. Each layer has a preparatory point, which is a waiting point used to activate the cleaning component 43. Figure 10 and Figure 12 During the process, after each path is completed, the cleaning component 43 will return to the preparation point and then move to the next level. When the last level is completed, the robotic arm 42 will return to the preparation point of the last level and then slowly move up to return to the reset point. The movement speed of the entire cleaning process is 2mm / s.

[0086] In some embodiments, a pressure sensor is installed at the connection between the cleaning component 43 and the robotic arm 42. During turbine blade cleaning, the cleaning component 43 contacts the surface of the turbine blade, causing a slight deformation at the connection between the cleaning component 43 and the robotic arm 42. The pressure sensor is thus subjected to a compressive force and outputs an electrical signal. Therefore, the magnitude of the contact pressure between the cleaning component 43 and the turbine blade surface can be fed back by the pressure sensor, and the cleaning intensity can be adjusted based on the force value fed back by the pressure sensor. Simultaneously, the power is disconnected when the pressure exceeds a set threshold to prevent the cleaning component 43 from causing physical damage to the turbine blade.

[0087] In this embodiment, a light source module assembly is designed to provide an effective light field for checking the permeability of the air film pores in the condition of parts and components, and for assisting in the inspection and maintenance after repair. The light source module assembly is mounted on the integrated work platform 1, as shown below. Figure 4As shown, the light source module assembly includes a light-emitting control component 21, a light emitter 22, and a light-emitting segment 23. The light-emitting segment 23 is a bulk-emitting optical fiber, connected to the light emitter 22 via a connector 24. The light emitted by the light emitter 22 is projected onto the turbine blades through the light-emitting segment 23. The diameter of the light-emitting segment 23 is 0.5 mm, and its effective light-emitting length is 80 mm. The connector 24 is connected to the light-emitting control component 21 via threads, allowing for easy replacement of the light-emitting segment 23. The light source is controlled by the light-emitting control component 21. The entire module is powered by a rechargeable battery, which can be replaced and recharged. The light emitter 22 uses a blue light source, and its luminous intensity is sufficient for observation under natural light conditions. The light-emitting segment 23 adopts a bulk-emitting design to check the status of the moving blade 5 parts and components, and the transparency of the guide vane 6 (excluding the dead cavity). To facilitate entry into the cavity, plastic optical fiber is used, giving the light-emitting segment 23 a certain degree of flexibility and preventing breakage. After fiber loss, simply remove the connector 24 and insert a new fiber segment.

[0088] In this embodiment, the air film pore unblocking component is responsible for unblocking blocked air film pores and those significantly smaller than their theoretical diameter, such as... Figure 5 and Figure 6 As shown, the film film aperture unblocking assembly includes a gripper 31 and a probe 32. The probe 32 is adapted to penetrate the film film aperture on the turbine blade to unblock it. The gripper 31 includes a housing and a drive unit. The housing houses a power supply and a controller. The drive unit is connected to the housing, and its drive end is connected to the probe 32 to drive the probe 32 to rotate around its axis. The drive unit is a motor, and the controller controls the motor to rotate, thereby driving the probe 32 to rotate and enter the blocked film film aperture, ensuring that the diameter of the unblocked film film aperture meets the minimum theoretical design diameter. The probe 32 diameter is designed according to different film film aperture diameters, including four specifications: 0.25mm, 0.3mm, 0.35mm, and 0.40mm. Straight-section and barbed-section probes are designed to cover film film apertures of different types of turbine blades (the barbed-section probe is for manual operation only).

[0089] In this embodiment, the light source module assembly, the film membrane pore unblocking assembly, and the dust removal component are all handheld. The surface deposit cleaning assembly also includes a lighting source, which provides illumination for manual inspection of the turbine blade surface quality after cleaning. The lighting source has a built-in rechargeable battery and is charged via an integrated USB charging port at the rear. The handheld design of the lighting source allows users to illuminate the turbine blade surface from multiple angles for surface quality inspection. The lighting source uses existing lighting devices.

[0090] In this embodiment, the orientation and dimensions of the turbine blades directly affect the cleaning process. To cover the cleaning of multiple turbine blade models and ensure that the cleaning component 43 can perform the cleaning work normally, the blade clamp 41 is also responsible for positioning. When the turbine blade is correctly clamped in the blade clamp 41, the coarse positioning of the turbine blade and the robotic arm 42 can be achieved.

[0091] After completing the coarse positioning, according to Figures 9 to 12 The robotic arm 42 automatically approaches the inspected product along the normal direction of the turbine blade starting from the preset trajectory. When the pressure sensor reaches the set pressure value, the robotic arm 42 automatically retracts to the preparatory point. The control system automatically adjusts the movement trajectory according to the pressure value, and then starts the cleaning component 43. The robotic arm 42 automatically cleans the turbine blade along the preset trajectory. After cleaning, it automatically returns to the safety preset point, the running light goes out, and the stop light turns on. At this time, the turbine blade to be cleaned, the cleaning area, and the pressure value can be reselected. Pressing the start button will allow the robotic arm 42 to continue repeating the above process. The control system uses existing PLC control technology.

[0092] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An integrated device for inspecting and cleaning turbine blade blockage, characterized in that, include: An integrated working platform (1) is suitable for placing turbine blades; The light source module assembly is located on the integrated working platform (1). The light source module assembly is used to check the blockage of the air film pores on the turbine blades in order to determine the air film pore permeability. A film film pore unblocking assembly is provided on the integrated working platform (1). The film film pore unblocking assembly includes a gripper (31) and a probe (32). The probe (32) is adapted to penetrate the film film pore on the turbine blade to unblock the film film pore. A surface attachment cleaning component is provided on the integrated working platform (1) to clean the attachments on the surface of the turbine blades; A control system is electrically connected to the surface deposit cleaning assembly to control the operation of the surface deposit cleaning assembly; The surface deposit cleaning assembly includes: Blade clamp (41) is used to fix the turbine blade; The robotic arm (42) and the cleaning component (43) are connected to the cleaning component (43). The robotic arm (42) is configured to be controlled by the control system to drive the cleaning component (43) to move along the turbine blade profile for cleaning along the turbine blade profile. Dust removal components are used to absorb and remove loose debris after the turbine blades have been cleaned. The blade clamp (41) includes; The base plate (411) is fixedly connected to the integrated work platform (1); The positioning plate (412) is fixedly connected to the base plate (411); The moving blade clamping plate (413) is slidably connected to the base plate (411), and a moving blade clamping cavity is provided between the positioning plate (412) and the moving blade clamping plate (413); The first top fastener (414) is movably connected to one end of the base plate (411); The blade clamping cavity is suitable for placing the blade root of the blade (5), and the first top fastener (414) is configured to rotate under the action of external force to drive the blade clamping plate (413) to move towards the positioning plate (412) to clamp the blade root of the blade (5). The moving blade clamping plate (413) is provided with a groove on one side of the moving blade clamping cavity that is adapted to the root of the moving blade (5); The blade clamp (41) also includes a positioning post (415), which is located in the moving blade clamping cavity and fixedly connected to the base plate (411). The positioning post (415) is adapted to abut against the leading edge of the moving blade (5). The blade clamp (41) also includes; The second top fastener (416) is movably connected to the other end of the base plate (411), and the second top fastener (416) and the first top fastener (414) are located on opposite sides of the positioning plate (412); The guide vane clamp (417) is slidably connected to the base plate (411), and a guide vane clamping cavity is provided between the guide vane clamp (417) and the positioning plate (412); The positioning pin is fixedly connected to the positioning plate (412) and is located in the guide vane clamping cavity. The positioning pin is adapted to abut against the front end of the guide vane (6) root positioning hole of the turbine blade. The second top fastener (416) is configured to rotate under the action of an external force to drive the guide vane clamp (417) to move toward the positioning plate (412) to clamp the guide vane (6).

2. The integrated device for turbine blade blockage inspection and cleaning according to claim 1, characterized in that, After the blade clamp (41) is configured to clamp the turbine blade, the turbine blade and the robotic arm (42) are coarsely positioned so that the cleaning component (43) can accurately clean the turbine blade.

3. The integrated device for turbine blade blockage inspection and cleaning according to claim 2, characterized in that, The cleaning path of the cleaning component (43) includes the leading edge of the moving leaf, the leading edge of the moving leaf with leaf basin, the leading edge of the guide leaf, and the leading edge of the guide leaf with leaf basin.

4. The integrated device for turbine blade blockage inspection and cleaning according to claim 1, characterized in that, The probe (32) includes a straight probe and a barbed probe, wherein the head of the straight probe is provided with a threaded pattern.

5. The integrated device for turbine blade blockage inspection and cleaning according to claim 4, characterized in that, The grip (31) includes: The housing contains a power supply and a controller; A drive unit is connected to the housing, and the drive end of the drive unit is connected to the probe (32) to drive the probe (32) to rotate about its axis.

6. The integrated device for turbine blade blockage inspection and cleaning according to claim 1, characterized in that, The light source module component includes: Light-emitting control component (21); The light emitter (22) is electrically connected to the light emission control unit (21); The light-emitting segment (23) is electrically connected to the light emitter (22). The light-emitting segment (23) is made of flexible material so as to facilitate entry into the turbine blade.

Citation Information

Patent Citations

  • Turbine blade film hole partition finishing device and method based on water-based abrasive particle flow

    CN115319646A

  • Machine part processing quality detection device

    CN218270473U