Non-destructive testing device for electrical insulation paperboard
By combining electrostatic brush rollers and adjustable guide rails, the problems of inaccurate positioning and clamping obstruction in the non-destructive testing of insulating paperboard in the electrical industry are solved, achieving efficient and accurate testing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENG BAO XIN CAI (JIANG SU) YOU XIAN GONG SI
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-19
AI Technical Summary
Existing non-destructive testing equipment suffers from inaccurate positioning and obstruction due to its clamping structure when inspecting insulating paperboard in the electrical industry, thus affecting the testing results.
An electrostatic brush roller is used to rub the glass plate surface to form electrostatic adsorption. Combined with an adjustable guide rail structure, this ensures the stability of the cardboard position, avoids the obstruction problem of the clamping structure, and is inspected by a radiographic testing mechanism.
It achieves stable detection of cardboard position, improves detection efficiency and quality, avoids the obstruction problem caused by traditional clamping structures, and ensures the accuracy and flexibility of X-ray inspection.
Smart Images
Figure CN224383174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing device technology, specifically a non-destructive testing device for electrical insulating paperboard. Background Technology
[0002] Electrical insulating paperboard is made from high-purity 100% unbleached sulfate wood pulp through viscous pulping and high-pressure processing. It is a general term for insulating paperboard used in the electrical industry. Electrical insulating paperboard is a general term for insulating paperboard used in the electrical industry, and it usually includes air-insulating paperboard and oil-insulating paperboard. It has good insulation, heat resistance, and durability. Insulating paperboard is used for electrical paperboard supplied to motors, electrical appliances, instruments, switches, transformers, and their components. The uses of insulating paperboard are to make air-medium insulating materials for slots, windings, gaskets, protective layers, etc. It can also be used as a separating material in transformer oil tanks with temperatures not exceeding 90°C. Large electrical insulating paperboard workpieces have strict requirements due to the special nature of their applications. The products must be free of bubbles and impurities. Therefore, sampling and testing are required during the production process.
[0003] Existing non-destructive testing (NDT) equipment is crucial for inspecting insulating paperboard in the electrical industry. It can assess the internal condition, aging degree, uniformity, and presence of defects such as delamination, voids, moisture, and contamination without damaging or affecting the integrity of the sample. Common NDT methods include ultrasonic testing, infrared thermography, and X-ray computed tomography (CT). X-ray testing uses X-rays to penetrate the object and acquire a large number of projected images from different angles. The three-dimensional image of the object's internal structure is then reconstructed by computer, thereby detecting and locating phenomena such as micro-voids, cracks, inclusions, and delamination, and quantitatively analyzing density gradients, porosity, and thickness variations.
[0004] The aforementioned non-destructive testing device provides the most intuitive and detailed three-dimensional internal information through X-ray detection. However, in actual testing, since the cardboard lacks a positioning function, it is prone to displacement and other phenomena. This requires the use of a positioning structure for fixation. However, traditional positioning structures, such as clamping and pressing, will put pressure on the cardboard structure, causing changes in the internal layering and affecting the detection. At the same time, the clamping structure itself will also cause obstruction, affecting the detection range of X-rays. Therefore, we propose a non-destructive testing device for electrical insulating cardboard. Utility Model Content
[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0006] The purpose of this invention is to provide a non-destructive testing device for electrical insulation paperboard to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a non-destructive testing device for electrical insulating paperboard, comprising a main frame, a radiation detection mechanism fixed at the top of the main frame, a base frame, a bottom bidirectional guide rail fixed on the top surface of the base frame, a radiation receiving device connected to the middle of the bottom bidirectional guide rail, support posts threadedly connected to both sides of the top surface of the base frame, a glass plate inserted into the top of the support posts, screws distributed around the top surface of the glass plate, a wall frame fixed to one side of the top surface of the base frame, a radiation detection mechanism fixed at the top of the wall frame, an adjustment groove provided in the middle of the wall frame, a bearing seat slidably fitted inside the adjustment groove, an electrostatic brush roller connected to one side of the shaft of the bearing seat, a brush roller motor connected to the other side of the shaft of the bearing seat, sliders fixed at the upper and lower ends of the bearing seat, a threaded shaft passing through the slider, and a drive motor axially connected to one end of the threaded shaft.
[0008] Furthermore, the radiation receiving device is bidirectionally slidably connected to the base frame via a bottom bidirectional guide rail, and the bottom bidirectional guide rail is driven by a built-in electric screw drive.
[0009] Furthermore, the glass plate is detachable from the top surface of the base frame by screws and support piles around its perimeter, and an electrostatic brush roller is attached to one side of the top surface of the glass plate.
[0010] Furthermore, the electrostatic brush roller forms a rotating structure with the brush roller motor and the bearing seat, and the electrostatic brush roller is made of acrylic fiber cloth.
[0011] Furthermore, the bearing housing is slidably engaged with the wall frame via a slider and an adjusting groove, and the slider and the adjusting groove form a transmission structure via a threaded shaft.
[0012] Furthermore, the X-ray inspection mechanism includes a top frame, a control panel fixed to the front end of the top frame, a top bidirectional guide rail fixed to the bottom surface of the top frame, a bottom bidirectional guide rail aligned with the bottom of the top bidirectional guide rail, and a X-ray inspection device connected to the middle of the top bidirectional guide rail.
[0013] Furthermore, the X-ray detection device is bidirectionally slidingly connected to the top frame via a top bidirectional guide rail, and both the top and bottom bidirectional guide rails are driven by built-in electric screw drives.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This non-destructive testing device is driven by an electrostatic brush roller attached to one side of the glass plate surface. The rotating electrostatic brush roller rubs the glass plate surface, and at the same time, the threaded shaft drives the process to rub the glass plate rapidly in one direction. As a result, the glass plate loses electrons and becomes positively charged due to friction, while the cloth of the electrostatic brush roller gains electrons and becomes negatively charged. At this time, an insulating cardboard can be placed on the glass plate surface to form an electrostatic adsorption process, which can be used in conjunction with the X-ray inspection mechanism to stabilize the inspection. While keeping the cardboard in a stable position, it avoids the obstruction problem caused by traditional clamping structures, thus improving the inspection efficiency and quality.
[0016] The glass plate of this non-destructive testing device is connected to the top surface of the base frame by screws on all four sides of the support piles. The glass plate can be removed by removing the screws on all four sides of the top surface of the glass plate as needed, which avoids wear and tear from long-term use. At the same time, the support piles of different heights can be replaced as needed to adapt to different testing requirements.
[0017] The control panel of this non-destructive testing device is electrically connected to both the top and bottom bidirectional guide rails, allowing for adjustment during the testing process and ensuring its correctability. Furthermore, the top and bottom bidirectional guide rails mounted at the bottom of the top frame are aligned vertically to ensure that the X-rays passing through the cardboard are accurately received by the X-ray receiving device. This process converts the X-rays into electrical signals, maintaining stability during the testing process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the main frame of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the base frame of this utility model;
[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the electrostatic brush roller of this utility model;
[0021] Figure 4 This is a schematic diagram of the bottom structure of the X-ray inspection mechanism of this utility model.
[0022] In the diagram: 1. Main frame; 101. Base frame; 102. Bottom bidirectional guide rail; 103. X-ray receiving device; 104. Support pile; 105. Glass plate; 106. Screw; 107. Wall shelf; 108. Adjustment groove; 109. Bearing seat; 110. Electrostatic brush roller; 111. Brush roller motor; 112. Slider; 113. Threaded shaft; 114. Drive motor; 2. X-ray inspection mechanism; 201. Top frame; 202. Control panel; 203. Top bidirectional guide rail; 204. X-ray inspection device. Detailed Implementation
[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0024] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.
[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0027] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] This utility model provides, for example Figure 1-4 The non-destructive testing device for electrical insulation paperboard shown includes a main frame 1. A radiographic testing mechanism 2 is fixed to the top of the main frame 1. The main frame 1 includes a base frame 101. A bottom bidirectional guide rail 102 is fixed to the top surface of the base frame 101. A radiographic receiving device 103 is connected to the middle of the bottom bidirectional guide rail 102. Support posts 104 are threaded to both sides of the top surface of the base frame 101. A glass plate 105 is inserted into the top of the support post 104. Screws 106 are distributed around the top surface of the glass plate 105. The top of the base frame 101... A wall frame 107 is fixed on one side of the wall frame 107, and a radiation detection mechanism 2 is fixed on the top of the wall frame 107. An adjustment groove 108 is provided in the middle of the wall frame 107. A bearing seat 109 is slidably fitted inside the adjustment groove 108. An electrostatic brush roller 110 is connected to one side of the shaft of the bearing seat 109, and a brush roller motor 111 is connected to the other side of the shaft of the bearing seat 109. A slider 112 is fixed at both the upper and lower ends of the bearing seat 109. A threaded shaft 113 passes through the slider 112, and a drive motor 114 is shaft-connected to one end of the threaded shaft 113.
[0029] To ensure the stability of the overall testing device and the smooth operation of the testing process, such as Figure 1-3As shown, this non-destructive testing device can be connected and fixed to the top frame 201 via the base frame 101 and the wall frame 107 on one side of the top surface, forming an overall equipment frame. The base frame 101 helps maintain stability at the bottom. The bidirectional guide rail 102 on the bottom surface of the base frame 101 can drive the X-ray receiving device 103 to adjust horizontally and vertically to align with the X-ray inspection device 204, thus maintaining stability during the inspection of the insulating paperboard. Before the inspection process, it can be driven by the electrostatic brush roller 110 attached to one side of the glass plate 105. The rotating electrostatic brush roller 110 rubs against the surface of the glass plate 105, and at the same time, in conjunction with the transmission process of the threaded shaft 113, it rubs the glass plate 105 rapidly in one direction. As a result, the glass plate 105 loses electrons and becomes positively charged due to friction, while the cloth of the electrostatic brush roller 110 gains electrons and becomes negatively charged. At this time, an insulating cardboard can be placed on the surface of the glass plate 105 to form an electrostatic adsorption process, which can be used in conjunction with the X-ray inspection mechanism 2 to stabilize the inspection. While keeping the cardboard in a stable position, it avoids the obstruction problem caused by the traditional clamping structure, thereby improving the inspection efficiency and quality.
[0030] The glass plate 105 is connected to the top surface of the base frame 101 by the support piles 104 around its perimeter. The glass plate 105 can be removed by removing the screws 106 around the top surface of the glass plate 105 as needed, thus avoiding wear and tear from long-term use. At the same time, the support piles 104 of different heights can be replaced as needed to adapt to different testing requirements.
[0031] like Figure 2-4 As shown, the X-ray inspection mechanism 2 includes a top frame 201, a control panel 202 fixed to the front end of the top frame 201, a top bidirectional guide rail 203 fixed to the bottom surface of the top frame 201, a bottom bidirectional guide rail 102 aligned with the bottom of the top bidirectional guide rail 203, and a X-ray inspection device 204 connected to the middle of the top bidirectional guide rail 203.
[0032] To maintain the flexibility and controllability of the testing process, such as Figure 2-4 As shown, the control panel 202 of this non-destructive testing device is electrically connected to the top bidirectional guide rail 203 and the bottom bidirectional guide rail 102, which can be adjusted during the testing process to ensure the correctability of the testing process. At the same time, the top bidirectional guide rail 203 and the bottom bidirectional guide rail 102 mounted at the bottom of the top frame 201 are aligned vertically to ensure that the X-rays passing through the cardboard by the X-ray detection device 204 can be accurately received by the X-ray receiving device 103, thereby receiving the X-rays that penetrate the cardboard, converting the photon signal into an electrical signal, and keeping the testing process stable.
[0033] In summary, when using this non-destructive testing device, the electrostatic brush roller 110 connected to the bearing seat 109 is first driven to rotate by the brush roller motor 111. At this time, the transmission motor 114 drives the threaded shaft 113 to rotate, and the threaded shaft 113 drives the threaded slider 112 and the bearing seat 109 to rotate, so that the bearing seat 109 slides along the direction of the adjustment groove 108, forming a process of synchronous friction between the surface of the electrostatic brush roller 110 and the top surface of the glass plate 105. After the friction treatment is completed, the electrostatic brush roller 110 stops after being driven to the other end. At this time, the surface of the glass plate 105 loses electrons and becomes positively charged. The insulating paperboard to be tested is placed on the surface of the glass plate 105. Then, the top bidirectional guide rail 203 can be adjusted by the control panel 202. The top bidirectional guide rail 203 drives the X-ray detection device 204 to perform X-ray detection on the paperboard. During the process, the movement trajectory of the bottom bidirectional guide rail 102 and the top bidirectional guide rail 203 is consistent, ensuring that the X-ray receiving device 103 is always in a vertically aligned state, thereby completing the X-ray detection and reception process.
[0034] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A non-destructive testing device for electrical insulation paperboard, comprising a main frame (1), characterized in that, A radiation detection mechanism (2) is fixed to the top of the main frame (1). The main frame (1) includes a base frame (101). A bottom bidirectional guide rail (102) is fixed to the top surface of the base frame (101). A radiation receiving device (103) is connected to the middle of the bottom bidirectional guide rail (102). Support piles (104) are threaded to both sides of the top surface of the base frame (101). A glass plate (105) is inserted into the top of the support pile (104). Screws (106) are distributed around the top surface of the glass plate (105). A wall frame (107) is fixed to one side of the top surface of the base frame (101). The top of the wall frame (107) is fixed with a radiation detection mechanism (2). An adjustment groove (108) is provided in the middle of the wall frame (107). A bearing seat (109) is slidably fitted inside the adjustment groove (108). An electrostatic brush roller (110) is connected to one side of the shaft of the bearing seat (109). A brush roller motor (111) is connected to the other side of the shaft of the bearing seat (109). A slider (112) is fixed at both the upper and lower ends of the bearing seat (109). A threaded shaft (113) passes through the slider (112). A drive motor (114) is shaft-connected to one end of the threaded shaft (113).
2. The non-destructive testing device for electrical insulation paperboard according to claim 1, characterized in that, The radiation receiving device (103) is bidirectionally slidably connected to the base frame (101) via a bottom bidirectional guide rail (102), and the bottom bidirectional guide rail (102) is driven by a built-in electric screw drive.
3. The non-destructive testing device for electrical insulation paperboard according to claim 1, characterized in that, The glass plate (105) is connected to the top surface of the base frame (101) via screws (106) and support piles (104) to form a detachable structure, and an electrostatic brush roller (110) is attached to one side of the top surface of the glass plate (105).
4. The non-destructive testing device for electrical insulation paperboard according to claim 1, characterized in that, The electrostatic brush roller (110) forms a rotating structure with the brush roller motor (111) and the bearing seat (109), and the electrostatic brush roller (110) is made of acrylic fiber cloth.
5. The non-destructive testing device for electrical insulation paperboard according to claim 1, characterized in that, The bearing seat (109) is slidably engaged with the wall frame (107) through the slider (112) and the adjusting groove (108), and the slider (112) and the adjusting groove (108) form a transmission structure through the threaded shaft (113).
6. The non-destructive testing device for electrical insulation paperboard according to claim 1, characterized in that, The X-ray inspection mechanism (2) includes a top frame (201), a control panel (202) is fixed to the front end of the top frame (201), a top bidirectional guide rail (203) is fixed to the bottom surface of the top frame (201), a bottom bidirectional guide rail (102) is aligned with the bottom of the top bidirectional guide rail (203), and a X-ray inspection device (204) is connected to the middle of the top bidirectional guide rail (203).
7. The non-destructive testing device for electrical insulation paperboard according to claim 6, characterized in that, The X-ray detection device (204) is bidirectionally slidingly connected to the top frame (201) via a top bidirectional guide rail (203), and both the top bidirectional guide rail (203) and the bottom bidirectional guide rail (102) are driven by built-in electric screw transmission.