A multi-dimensional inspection device for high-speed wind turbine blade products

Abstract

This invention discloses a multi-dimensional inspection device for high-speed wind turbine blade products, comprising: a base; a positioning unit disposed on the base for clamping and positioning the root of the propeller blade product; a support unit disposed on the base for supporting the propeller blade product; a transverse shift seat disposed above the base; a drive unit for driving the transverse shift seat to move horizontally and vertically; a detection column connected to the bottom of the transverse shift seat via a buffer unit, with a steel ball rotatably connected to its lower end; and a displacement detection unit for detecting the longitudinal movement stroke of the detection column. Compared with existing technologies, this invention eliminates the need for feeler gauges or go / no-go gauges, thus making the detection accuracy independent of human subjectivity. Furthermore, when the steel ball rolls to the blade's profile detection point, the displacement data can be fed back to an external controller for display in real time, thereby increasing the detection speed and improving detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically a multi-dimensional inspection device for high-speed wind turbine blade products. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. In China, "fan" is a common abbreviation for gas compression and gas transportation machinery, typically including ventilators, blowers, and wind turbines. High-speed fans are those with high rotational speeds and large air volumes. With continuous technological advancements, high-speed fans are widely used in various fields. During the manufacturing process of high-speed fan blades, the shape profile of the blades needs to be inspected. Profile accuracy describes the accuracy of surface dimensions, with the main indicator being profile error, which refers to the variation of the measured actual profile relative to the ideal profile. Currently, blade shape profile measurement generally uses industrial photography, which is time-consuming and slow in data processing. Alternatively, go / no-go gauges or feeler gauges combined with profile calipers are used to inspect the blade shape profile; however, this method is heavily influenced by human subjectivity, potentially affecting the accuracy of the shape profile inspection. Therefore, achieving rapid profile inspection without compromising accuracy is a problem urgently needing to be solved by those skilled in the art.

[0003] To address the aforementioned issues, we propose a multi-dimensional inspection device for high-speed wind turbine blade products. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a multi-dimensional inspection device for high-speed wind turbine blade products. In order to solve the technical problems mentioned in the background art, the present invention provides the following technical solution:

[0005] This invention provides a multi-dimensional inspection device for high-speed wind turbine blade products, comprising:

[0006] Base;

[0007] A positioning unit is provided on the base and is used to clamp and position the blade root of the propeller blade product.

[0008] A support unit, located on the base, is used to support the propeller blade product.

[0009] A horizontal sliding seat is located above the base.

[0010] The drive unit is used to drive the horizontal sliding seat to move horizontally and vertically;

[0011] The detection column is connected to the bottom of the transverse seat through a buffer unit, and a steel ball is rotatably connected to its lower end;

[0012] The displacement detection unit is used to detect the longitudinal movement of the detection column.

[0013] In the multi-dimensional inspection device for high-speed wind turbine blades as described above, the positioning unit includes:

[0014] The support column is vertically mounted on the base.

[0015] A pad is provided at the upper end of the support column, and its top surface is parallel to the top surface of the base.

[0016] Two locating pins are fixed to opposite sides of the pad, and are respectively used to connect to two machined holes at the root of the propeller blade;

[0017] A clamping assembly is used to clamp the root of the propeller blades placed on a pad.

[0018] In the multi-dimensional inspection device for high-speed wind turbine blade products described above, the two positioning pins are a circular positioning pin and a diamond-shaped positioning pin, respectively.

[0019] In the multi-dimensional inspection device for high-speed wind turbine blades as described above, the clamping assembly includes:

[0020] Hinged seat, hinged to the support column;

[0021] A hydraulic cylinder is mounted on the hinge seat;

[0022] The tilting arm is hinged to the outer wall of one side of the pad.

[0023] A connecting arm is connected to the end of the telescopic rod of the hydraulic cylinder, and the connecting arm is hinged to the tilting arm;

[0024] A clamp is attached to the flipping arm and corresponds to the pad.

[0025] In the multi-dimensional inspection device for high-speed wind turbine blade products as described above, a connecting column is vertically fixed to the clamp plate, the connecting column is threaded through the flipping arm and has multiple nuts fitted at its upper end, and the end face of the nut abuts against the upper surface of the flipping arm.

[0026] In the multi-dimensional inspection device for high-speed wind turbine blades as described above, the support unit includes:

[0027] Multiple upright plates are evenly spaced on the base along the length of the base, and their tops are provided with notched slots.

[0028] Multiple card plates are respectively engaged in multiple card slots;

[0029] Multiple arc-shaped support plates are respectively fixed to the top of multiple said card plates, and the inner arc surfaces of the multiple arc-shaped support plates are respectively attached to different positions on the surface of the propeller blades;

[0030] Locking element, used to limit the position of the card plate that is engaged in the card slot.

[0031] In the multi-dimensional inspection device for high-speed wind turbine blade products as described above, the locking component includes a set screw threaded through the vertical plate, and the clamping plate is provided with a positioning hole for the set screw to be threadedly connected.

[0032] In the multi-dimensional inspection device for high-speed wind turbine blades as described above, the drive unit includes:

[0033] A longitudinal support is mounted on the base;

[0034] The lifting seat is vertically and slidably connected to the longitudinal support;

[0035] The first lead screw mechanism is used to drive the lifting seat to move vertically.

[0036] A transverse support is connected to a longitudinal support, and the transverse sliding seat is horizontally slidably connected to the transverse support;

[0037] The second lead screw mechanism is used to drive the horizontal movement of the transverse slide.

[0038] In the multi-dimensional inspection device for high-speed wind turbine blades as described above, the displacement detection unit includes:

[0039] A displacement sensor is mounted on the transverse support;

[0040] The sensing block is connected to the outer wall of the detection column and is used in conjunction with the displacement sensor.

[0041] In the multi-dimensional inspection device for high-speed wind turbine blades as described above, the buffer unit includes:

[0042] A telescopic column is fixed to the bottom of the transverse sliding seat, and the detection column is provided with a socket for the telescopic column to extend and retract.

[0043] A short pin is provided on the detection column, and an oblong hole is provided on the outer wall of the detection column for the short pin to be inserted. The length direction of the oblong hole is parallel to the axial direction of the detection column.

[0044] A spring is provided inside the socket and is capable of elastically abutting the telescopic post.

[0045] Compared with existing technologies, the advantages of this invention are as follows: A standard blade is used to set the profile detection point for the blade. Simultaneously, a drive unit pre-drives a steel ball to the profile detection point and zeros the data in the detection unit. When detecting other blades, the drive unit, according to the settings, moves the detection column to the blade's profile detection point. When the profile of the blade to be detected is defective, the steel ball will move to a certain extent. The detection unit can detect the amount of movement of the steel ball and compare it with the movement data at the same profile detection point of the standard blade to quickly analyze the blade's profile. Compared with existing technologies, there is no need to use feeler gauges or go / no-go gauges for detection, making the detection accuracy unaffected by human subjectivity. Furthermore, when the steel ball rolls to the blade's profile detection point, the displacement data can be fed back to the external controller in real time for display, thus improving detection speed and efficiency. Additionally, since the detection column can float up and down, the steel ball can adapt to the curved surface of the propeller blade, enabling multi-dimensional detection of the propeller blade's profile. Attached Figure Description

[0046] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0047] Figure 1 This is a schematic diagram of the assembly structure of a multi-dimensional inspection device for high-speed wind turbine blade products according to the present invention;

[0048] Figure 2 for Figure 1 Enlarged schematic diagram of the local structure at point A;

[0049] Figure 3 for Figure 1 A schematic diagram of the structure viewed from below;

[0050] Figure 4 for Figure 3 Enlarged schematic diagram of the local structure at point B;

[0051] Figure 5 for Figure 1 Side view of the middle structure;

[0052] Figure 6 for Figure 1 A front view of the structure.

[0053] In the diagram: 1-base, 2-arc-shaped support plate, 3-detection column, 4-transverse sliding seat, 5-second motor, 6-transverse support, 7-second lead screw, 8-second guide column, 9-first motor, 10-lifting seat, 11-first guide column, 12-first lead screw, 13-clamping plate, 14-vertical plate, 15-longitudinal support, 16-tilting arm, 17-connecting arm, 18-hydraulic cylinder, 19-nut, 20-clamping plate, 21-positioning pin, 22-pad, 23-support column, 24-hinge seat, 25-displacement sensor, 26-short pin, 27-sensing block, 28-slender hole, 29-telescopic column, 30-spring, 31-steel ball. Detailed Implementation

[0054] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0055] Example

[0056] like Figure 1-6As shown, this embodiment provides a technical solution: a multi-dimensional inspection device for high-speed wind turbine blade products, including a base 1, a positioning unit, a support unit, a transverse seat 4, a drive unit, a detection column 3, and a displacement detection unit. The positioning unit is disposed on the base 1 and is used to clamp and position the blade root of the propeller blade product. Specifically, the positioning unit includes a support column 23, a pad 22, and a clamping assembly. The support column 23 is vertically disposed on the base 1, the pad 22 is disposed on the upper end of the support column 23 and its top surface is parallel to the top surface of the base 1, and two positioning pins 21 are used. The two locating pins 21 are respectively fixed to opposite sides of the pad 22 and are respectively used for insertion into the two machined holes at the root of the propeller blade. Furthermore, the two locating pins 21 are a circular locating pin and a diamond-shaped locating pin, respectively. This allows the positional accuracy of the two machined holes at the root of the blade to be reduced on the blade clamping and positioning effect after the two locating pins are inserted. The clamping assembly is used to clamp the root of the propeller blade placed on the pad 22. Specifically, the clamping assembly includes a hinge 24 and a hydraulic cylinder 18. The tilting arm 16, connecting arm 17, clamping plate 20, and hinge seat 24 are hinged to the support column 23. A hydraulic cylinder 18 is mounted on the hinge seat 24. The tilting arm 16 is hinged to the outer wall of one side of the pad 22. The connecting arm 17 is connected to the end of the telescopic rod of the hydraulic cylinder 18 and is hinged to the tilting arm 16. The clamping plate 20 is connected to the tilting arm 16 and corresponds to the pad 22. When clamping the blade root, the hydraulic cylinder is first activated, extending its telescopic rod, which drives the connecting arm to move upward, thereby causing the tilting arm to tilt downward. This allows the clamping plate 20 to clamp the root of the blade. In this embodiment, a connecting post is vertically fixed to the clamping plate 20. The connecting post is threaded through the flipping arm 16 and has multiple nuts 19 fitted on its upper end. The end face of the nut 19 abuts against the upper surface of the flipping arm 16. By rotating the nut 19, the nut 19 is screwed into the connecting post thread. After adjusting the length of the connecting post exposed above the top surface of the flipping arm 16, the connecting rod is locked by the nut 19 to prevent the connecting rod from rotating on its own, which would affect the clamping plate 20.The support unit is mounted on the base 1 and is used to support the propeller blade product. The transverse support 4 is located above the base 1. Specifically, the support unit includes multiple upright plates 14, multiple clamping plates 13, multiple arc-shaped support plates 2, and locking components. The multiple upright plates 14 are evenly spaced on the base 1 along its length, and their tops have notched slots. The multiple clamping plates 13 are respectively engaged in the multiple slots. The multiple arc-shaped support plates 2 are respectively fixed to the tops of the multiple clamping plates 13, and the inner arc surfaces of the multiple arc-shaped support plates 2 are respectively positioned at different locations on the surface of the propeller blade. The blades are placed on the upper surfaces of multiple arc-shaped support plates, with the inner arc surfaces of the arc-shaped support plates fitting against the blade surfaces to provide longitudinal support for the blades. In addition, a locking component is used to limit the position of the card plate 13 that is engaged in the card slot. Specifically, the locking component includes a set screw threaded through the upright plate 14. The card plate 13 has a positioning hole for the set screw to be threaded. By inserting the set screw into the positioning hole, the card plate 13 can be positioned after it is engaged in the card slot. This ensures high positional accuracy when the arc-shaped support plate 2 is repeatedly installed. The drive unit is used to drive the horizontal sliding seat 4 to move horizontally and vertically. Specifically, the drive unit includes a longitudinal support 15, a lifting seat 10, a first lead screw mechanism, a transverse support 6, and a second lead screw mechanism. The longitudinal support 15 is mounted on the base 1, and the lifting seat 10 is vertically slidably connected to the longitudinal support 15. Specifically, the longitudinal support 15 is provided with a first guide post 11, and the lifting seat 10 has a through hole for the first guide post 11 to pass freely, so that the lifting seat 10 will not swing when moving up and down. The first lead screw mechanism is used to drive the lifting seat 10 to move vertically. Specifically, the first lead screw mechanism includes a first motor 9 and a first lead screw 12. The first motor 9 is mounted on the top of the longitudinal support, and the first lead screw 12 is vertically rotatably connected to the longitudinal support and threadedly connected to the horizontal sliding seat. Thus, when the first motor 9 is energized and rotates, it drives the second lead screw mechanism. A lead screw 12 rotates, which in turn drives the transverse sliding seat 4 to move up and down. The transverse support 6 is connected to the longitudinal support 15, and the transverse sliding seat 4 is horizontally slidably connected to the transverse support 6. The transverse support is provided with multiple second guide posts, and the transverse sliding seat 4 has through holes for the second guide posts 8 to pass through freely, so that the transverse sliding seat 4 is horizontally slidably connected to the second guide posts. The second lead screw mechanism is used to drive the transverse sliding seat 4 to move horizontally. Specifically, the second lead screw mechanism includes a second motor 5 mounted on the transverse support. The motor shaft of the second motor 5 is driven and connected to a second lead screw 7. The transverse sliding seat 4 is threadedly connected to the second lead screw 7. The second motor is started by an external controller, so that when the second motor rotates, it can drive the second lead screw 7 to engage with the transverse sliding seat 4, thereby realizing the horizontal movement of the transverse sliding seat and realizing the adjustment of the moving position of the transverse sliding seat 4.The detection column 3 is connected to the bottom of the transverse support 4 via a buffer unit, and a steel ball 31 is rotatably connected to its lower end. The displacement detection unit is used to detect the longitudinal movement stroke of the detection column 3. Specifically, the displacement detection unit includes a displacement sensor 25 and a sensing block 27. The displacement sensor 25 is mounted on the transverse support 4, and the sensing block 27 is connected to the outer wall of the detection column 3 and works in conjunction with the displacement sensor 25. Specifically, a fixing plate is set on the outer wall of the detection column 3, and the sensing block is welded or glued to the fixing plate, keeping the sensing block in a corresponding state with the displacement sensor 25. The rotation stroke of the first motor and the second motor is set by an external controller, so that after the transverse support moves into place, the buffer unit drives the steel ball to press against the blade surface. During the pressing process, when the blade surface contour is poor, the steel ball will generate a certain displacement. At this time, the displacement is detected by the sensing block and the displacement sensor. The device works in conjunction with the displacement sensor, which collects the movement of the sensing block and generates a displacement signal, which is then fed back to the external controller. By analyzing the movement data of the sensing block corresponding to the fixed detection position of the blade, the profile of the blade can be analyzed. The buffer unit includes a telescopic column 29, a short pin 26, and a spring 30. The telescopic column 29 is fixed to the bottom of the transverse shift seat 4, and the detection column 3 has a socket for the telescopic column 29 to be inserted and extended. The short pin 26 is located on the detection column 3, and the outer wall of the detection column 3 has a waist-shaped hole 28 for the short pin 26 to be inserted. The length direction of the waist-shaped hole 28 is parallel to the axial direction of the detection column 3. The spring 30 is located in the socket and can elastically abut against the telescopic column 29. Through the elastic abutting force of the spring against the telescopic column, the telescopic column can be driven to slide downward, and through the elastic force of the spring, the steel ball is kept in contact with the blade surface.

[0057] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-dimensional inspection device for high-speed wind turbine blade products, characterized in that, include: Base (1); The positioning unit is located on the base (1) and is used to clamp and position the blade root of the propeller blade product. A support unit is provided on the base (1) and is used to support the propeller blade product; A transverse sliding seat (4) is located above the base (1); The driving unit is used to drive the horizontal sliding seat (4) to move horizontally and vertically; The detection column (3) is connected to the bottom of the transverse seat (4) through a buffer unit, and a steel ball (31) is rotatably connected to its lower end. The displacement detection unit is used to detect the longitudinal movement stroke of the detection column (3); The positioning unit includes: The support column (23) is vertically mounted on the base (1); A pad (22) is provided on the upper end of the support column (23) and its top surface is parallel to the top surface of the base (1); Two locating pins (21) are fixed to the opposite sides of the pad (22) respectively, and are respectively used for the two machined holes at the root of the propeller blade to be inserted and connected; A clamping assembly is used to clamp the blade root of the propeller blade placed on the pad (22); The clamping assembly includes: Hinge seat (24), hinged to the support column (23); A hydraulic cylinder (18) is mounted on the hinge seat (24); The flip arm (16) is hinged to the outer wall of one side of the pad (22); A connecting arm (17) is connected to the end of the telescopic rod of the hydraulic cylinder (18), and the connecting arm (17) is hinged to the tilting arm (16); A clamp (20) is attached to the flipping arm (16) and corresponds to the pad (22); The support unit includes: Multiple upright plates (14) are evenly spaced on the base (1) along the length of the base (1), and their tops are provided with notched slots; Multiple card plates (13) are respectively engaged in multiple card slots; Multiple arc-shaped support plates (2) are respectively fixed to the top of multiple card plates (13), and the inner arc surfaces of the multiple arc-shaped support plates (2) are respectively attached to different positions on the surface of the propeller blades; A locking element is used to limit the position of the card plate (13) that is engaged in the card slot; The displacement detection unit includes: A displacement sensor (25) is mounted on the transverse sliding seat (4); The sensing block (27) is connected to the outer wall of the detection column (3) and is used in conjunction with the displacement sensor (25).

2. The multi-dimensional inspection device for high-speed wind turbine blades as described in claim 1, characterized in that, The two positioning pins (21) are a circular positioning pin and a diamond-shaped positioning pin, respectively.

3. The multi-dimensional inspection device for high-speed wind turbine blades as described in claim 1, characterized in that, A connecting column is vertically fixed on the clamp (20). The connecting column is threaded through the flip arm (16) and has multiple nuts (19) sleeved on its upper end. The end face of the nut (19) abuts against the upper surface of the flip arm (16).

4. The multi-dimensional inspection device for high-speed wind turbine blades as described in claim 1, characterized in that, The locking element includes a set screw threaded through the upright plate (14), and the clamping plate (13) has a positioning hole for threaded connection of the set screw.

5. The multi-dimensional inspection device for high-speed wind turbine blades as described in claim 1, characterized in that, The driving unit includes: A longitudinal support (15) is provided on the base (1); The lifting seat (10) is vertically slidably connected to the longitudinal support (15); The first lead screw mechanism is used to drive the lifting seat (10) to move vertically; A transverse support (6) is connected to a longitudinal support (15), and the transverse sliding seat (4) is horizontally slidably connected to the transverse support (6); The second lead screw mechanism is used to drive the horizontal movement of the transverse slide (4).

6. The multi-dimensional inspection device for high-speed wind turbine blades as described in claim 1, characterized in that, The buffer unit includes: The telescopic column (29) is fixed to the bottom of the transverse shift seat (4), and the detection column (3) is provided with a socket for the telescopic column (29) to be inserted into the telescopic column; A short pin (26) is provided on the detection column (3). The outer wall of the detection column (3) is provided with a waist-shaped hole (28) for the short pin (26) to be inserted. The length direction of the waist-shaped hole (28) is parallel to the axial direction of the detection column (3). A spring (30) is provided in the socket and is capable of elastically abutting the telescopic post (29).

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