Flywheel structure capable of detecting flaws on line

Abstract

The flywheel structure comprises a flywheel rotor, a flywheel shell and a detection assembly, the flywheel shell is internally provided with a containing space used for containing the flywheel rotor, the flywheel rotor is arranged in the flywheel shell, the bottom of the flywheel shell is provided with a detection window, and the detection window is arranged in the containing space. A sliding rail is installed at the position of the detection window, the detection assembly comprises an ultrasonic probe, the ultrasonic probe is connected with the sliding rail in a sliding mode, and the ultrasonic probe can conduct ultrasonic flaw detection on the flywheel rotor. By means of the flywheel rotor flaw detection device, the requirement that flaw detection can be conducted without disassembling the flywheel rotor can be met, and during flaw detection, the flaw detection of the flywheel rotor can be completed through the sliding rail only by fixing the ultrasonic probe on the sliding rail.

Description

Technical Field

[0001] The present application relates to the technical field of flywheel structures, and in particular to a flywheel structure capable of online flaw detection. Background Art

[0002] As flywheel energy and volume increase, the size and weight of steel flywheel rotors also increase. Due to the design and material characteristics of flywheel rotors, flaw detection must be performed after the rotor is forged. This typically involves both surface and internal flaw detection. Existing technical solutions only perform flaw detection after the rotor is cast, without methods for flaw detection on assembled rotors. Furthermore, if flaw detection is the only consideration, disassembling the rotor increases cost and time, making it uneconomical and more complex. Therefore, a flywheel structure capable of online flaw detection is needed, which can detect flaws on assembled rotors without disassembling them, reducing time and cost. Utility Model Content

[0003] In view of this, the present application proposes a flywheel structure capable of online flaw detection.

[0004] According to one aspect of the present application, there is provided a flywheel structure capable of online flaw detection, comprising: a flywheel rotor, a flywheel housing, and a detection assembly;

[0005] The flywheel housing is provided with an accommodating space for accommodating the flywheel rotor, and the flywheel rotor is arranged inside the flywheel housing;

[0006] A detection window is provided at the bottom of the flywheel housing, and a slide rail is installed at the position of the detection window; the detection assembly includes an ultrasonic probe, which is slidably connected to the slide rail, and the ultrasonic probe can perform ultrasonic flaw detection on the flywheel rotor.

[0007] In a possible implementation, the angle formed by one end of the detection window connecting to the bottom of the detection area of ​​the flywheel rotor and the horizontal plane is the same as the angle formed by the other end of the detection window connecting to the top of the detection area and the horizontal plane;

[0008] The detection area and the two ends of the detection window are connected in different vertical directions, do not cover the flywheel rotor detection area when connected, and the two ends are in a diagonal relationship.

[0009] In a possible implementation, the ratio of the vertical distance from the bottom of the detection area to the flywheel housing to the horizontal distance from the farthest horizontal end of the detection area to the detection window is the tangent value of the angle of the horizontal plane.

[0010] In one possible implementation, the ratio of the sum of the height of the detection area and the vertical distance from the bottom to the flywheel housing to the sum of the horizontal distance from the nearest horizontal end of the detection area to the detection window and the length of the detection window is the tangent of the angle with the horizontal plane.

[0011] In a possible implementation, the ultrasound probe includes an oblique probe and a straight probe.

[0012] In a possible implementation, the angle of the horizontal plane is equal to the angle of the angle probe.

[0013] In a possible implementation, the width of the detection window is equal to the bottom length of the detection area.

[0014] In a possible implementation, the detection assembly further includes a camera capable of performing visual flaw detection on the corners of the flywheel rotor.

[0015] Beneficial effects of this application:

[0016] The flywheel structure capable of online flaw detection in the present application is provided with a flywheel rotor, a flywheel housing, and a detection assembly. The flywheel housing is provided with a storage space for accommodating the flywheel rotor. The flywheel rotor is arranged inside the flywheel housing. A detection window is provided at the bottom of the flywheel housing. A slide rail is installed at the position of the detection window. The detection assembly includes an ultrasonic probe. The ultrasonic probe is slidably connected to the slide rail, and the ultrasonic probe is capable of performing ultrasonic flaw detection on the flywheel rotor. The flywheel structure in the present application is provided with a detection window. By using the detection assembly to extend through the detection window into the gap between the flywheel housing and the flywheel rotor or to fit the rotor, the flaw detection of the flywheel rotor can be completed without disassembling the flywheel rotor.

[0017] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

[0019] Figure 1 A diagram showing the opening positions of a flywheel structure capable of online flaw detection according to an embodiment of the present application;

[0020] Figure 2 An end view of a flywheel housing showing a flywheel structure capable of online flaw detection according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0022] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0024] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0025] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0026] like Figure 1 As shown, the flywheel structure capable of online flaw detection includes: a flywheel rotor 100, a flywheel housing 200 and a detection assembly;

[0027] The flywheel housing 200 is provided with an accommodating space for accommodating the flywheel rotor 100 , and the flywheel rotor 100 is arranged inside the flywheel housing 200 ;

[0028] A detection window 300 is provided at the bottom of the flywheel housing 200 , and a slide rail 400 is installed at the position of the detection window 300 ; the detection assembly includes an ultrasonic probe, which is slidably connected to the slide rail 400 and can perform ultrasonic flaw detection on the flywheel rotor 100 .

[0029] In this embodiment, a accommodating space for accommodating the flywheel rotor 100 is provided in the flywheel housing 200. The flywheel rotor 100 is placed inside the flywheel housing 200 so that the flywheel rotor 100 can operate normally. A detection window 300 is provided in the flywheel housing 200. A slide rail 400 is installed on the detection window 300. The detection component is slidably connected to the slide rail 400. The flaw detection of the flywheel rotor 100 can be completed directly through the detection window 300 without disassembling the flywheel rotor 100.

[0030] In one possible implementation, the angle formed by one end of the detection window 300 connecting to the bottom of the detection area of ​​the flywheel rotor 100 and the horizontal plane is the same as the angle formed by the other end of the detection window 300 connecting to the top of the detection area and the horizontal plane;

[0031] The detection area and the two ends of the detection window 300 are connected in different vertical directions, and do not cover the detection area of ​​the flywheel rotor 100 when connected, and the two ends are in a diagonal relationship.

[0032] The length and width of the detection window 300 are related to the size of the detection area. The detection area is cylindrical and rectangular in plan, i.e., Area 2 in the figure. Before opening the window, the angle of the ultrasonic probe to be used is determined. The bottom of the flywheel housing 200 is used as the horizontal plane, and the upper and lower endpoints of the detection window 300 are used as references. The positions where the upper and lower ends are connected to the horizontal plane are determined based on the angle. Specifically, for example, if the angle of the ultrasonic probe is α, based on the connection relationship between the detection area and the detection window 300, the right endpoint above the detection area is determined to be connected to the horizontal plane, and the left endpoint below is determined to be connected to the horizontal plane, and the angles formed with the horizontal plane are the same. That is, the left endpoint of the detection window 300 is finally connected to the left endpoint below the detection area, and the right endpoint of the detection window 300 is connected to the right endpoint above the detection area.

[0033] In a possible implementation, the ratio of the vertical distance from the bottom of the detection area to the flywheel housing 200 to the horizontal distance from the farthest horizontal end of the detection area to the detection window 300 is the tangent value of the angle of the horizontal plane.

[0034] The connection between the left endpoint of the detection area below and the horizontal plane forms a right triangle. Specifically, the connection with the horizontal plane includes the connection with the detection window 300 and the vertical connection with the horizontal plane. The vertical connection with the horizontal plane is the vertical distance from the detection area below to the flywheel housing 200. According to trigonometric formulas, the ratio of the vertical distance from the detection area below to the flywheel housing 200 to the horizontal distance from the left endpoint of the detection area below to the left endpoint of the detection window 300 is the tangent of α.

[0035] In one possible implementation, the ratio of the sum of the height of the detection area and the vertical distance from the bottom to the flywheel housing 200 to the sum of the horizontal distance from the nearest horizontal end of the detection area to the detection window 300 and the length of the detection window 300 is the tangent value of the angle of the horizontal plane.

[0036] The connection between the right endpoint above the detection area and the horizontal plane also forms a right triangle. Specifically, the connection with the horizontal plane includes the connection with the detection window 300 and the vertical connection with the horizontal plane. The vertical connection with the horizontal plane includes the height of the detection area and the vertical distance from the bottom of the detection area to the flywheel housing 200. According to trigonometric formulas, the ratio of the vertical distance from the right endpoint above the detection area to the flywheel housing 200 to the horizontal distance from the right endpoint below the detection area to the right endpoint of the detection window 300 is the tangent of α. Using this trigonometric formula, the length of the detection window can be calculated.

[0037] Specifically, such as Figure 1 Based on the actual flaw detection focus, the size of area 2 is determined as the basis, and the height B, bottom diameter E of area 1 and the distance A from area 2 to the end face of the flywheel housing 200 are obtained. According to the trigonometric formula, A / (E+C)=tanα, based on this formula, the specific value of the length C can be obtained, and the horizontal distance between the right end of area 2 and the detection opening 300 can be determined.

[0038] Furthermore, the length of the detection opening 300 also needs to be known. According to the trigonometric formula, (A+B) / (C+D)=tanα. Since C has been calculated, the specific value of D, that is, the length of the detection opening 300, can be calculated.

[0039] That is, after determining the region 2 and the angle α of the ultrasonic probe used, the position of the detection opening 300 can be calculated based on the trigonometric formula. It should be noted that the region 2 is selected to be concentrated in the middle of the flywheel rotor 100 .

[0040] In a possible implementation, the ultrasound probe includes an oblique probe and a straight probe.

[0041] The length and width of the detection window 300 are related to the size of the inspection area and the angle of the angle probe. Once the detection window 300 is opened, a straight probe can be used to inspect the flywheel rotor 100 perpendicular to the detection window 300, namely, area 1. Area 2 is difficult to inspect with a straight probe, so an angle probe allows ultrasonic waves to be incident at an angle on area 2, completing the inspection. In other words, the combination of an angle probe and a straight probe, with the probes moved by the slide rail 400, allows inspection of different areas of the flywheel rotor 100 as needed.

[0042] In a possible implementation, the angle of the horizontal plane is equal to the angle of the angle probe.

[0043] The opening of the detection window 300 based on the angle of the oblique probe ensures that the ultrasonic probe can complete the flaw detection of the area to be detected.

[0044] In a possible implementation, the width of the detection window 300 is equal to the bottom length of the detection area.

[0045] The detection area is cylindrical, and the length of the upper and lower ends of its plane is the bottom length E, which is also the diameter of the cylinder, as shown in Figure 2 As shown, the diameter length of the cylinder is the width of the detection window 300, so that the ultrasonic probe can perform complete flaw detection on the detection area during detection.

[0046] In a possible implementation, the detection assembly further includes a camera capable of performing visual flaw detection on the corners of the flywheel rotor 100 .

[0047] The flywheel rotor 100 has a corner. Specifically, the camera can be inserted into the flywheel rotor 100 using an endoscope, and the corner is used as a stress concentration point to complete the observation of the surface of the flywheel rotor 100.

[0048] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A flywheel structure capable of online flaw detection, characterized in that: include: Flywheel rotor, flywheel housing and probe assembly; The flywheel housing is provided with an accommodation space for accommodating the flywheel rotor, and the flywheel rotor is arranged inside the flywheel housing; A detection window is provided at the bottom of the flywheel housing, and a slide rail is installed at the position of the detection window; the detection component includes an ultrasonic probe, which is slidably connected to the slide rail, and the ultrasonic probe can perform ultrasonic flaw detection on the flywheel rotor.

2. The flywheel structure capable of online flaw detection according to claim 1, characterized in that: The angle between one end of the detection window and the horizontal plane formed by connecting the detection area below the flywheel rotor is the same as the angle between the other end of the detection window and the horizontal plane formed by connecting the detection area above the detection area; The detection area and the two ends of the detection window are connected in different vertical directions, do not cover the flywheel rotor detection area when connected, and the two ends are in a diagonal relationship.

3. The flywheel structure capable of online flaw detection according to claim 2, characterized in that: The ratio of the vertical distance from the bottom of the detection area to the flywheel housing to the horizontal distance from the farthest horizontal end of the detection area to the detection window is the tangent value of the angle of the horizontal plane.

4. The flywheel structure capable of online flaw detection according to claim 3, characterized in that: The ratio of the sum of the height of the detection area and the vertical distance from the bottom to the flywheel housing to the sum of the horizontal distance from the nearest horizontal end of the detection area to the detection window and the length of the detection window is the tangent value of the angle of the horizontal plane.

5. The flywheel structure capable of online flaw detection according to claim 4, characterized in that: The ultrasonic probe includes an oblique probe and a straight probe.

6. The flywheel structure capable of online flaw detection according to claim 5, characterized in that: The angle of the horizontal plane is equal to the angle of the oblique probe.

7. The flywheel structure capable of online flaw detection according to claim 4, characterized in that: The width of the detection window is equal to the bottom length of the detection area.

8. The flywheel structure capable of online flaw detection according to any one of claims 1 to 7, characterized in that: The detection assembly also includes a camera, which can perform visual flaw detection on the corners of the flywheel rotor.

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