Detector moving device for shielding detection
By designing an automatic moving detector device, the problem of frequent handling by staff in the shielding performance inspection of nuclear power equipment is solved, the detection efficiency is improved, and the accurate detection of workpieces of different shapes is achieved.
Patent Information
- Application Number
- CN202420222473.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-30
AI Technical Summary
During the shielding performance detection of nuclear power equipment, staff need to frequently enter and leave the detection room to carry the detector, resulting in low detection efficiency and high labor costs.
A detector moving device for shield detection is designed, including a base frame, a translation plate, a guide rail, a roller, a lifting component and an image collector. The drive member drives the roller to rotate, drives the translation plate to move, and the lifting component drives the protective sleeve to lift, realizing the The detector automatically moves to the next detection point.
No staff is required to enter the shielding room to carry the detector, which significantly improves the efficiency of workpiece shielding performance detection, and realizes the precise movement of the detector through image collectors and scales, which is suitable for workpiece detection of different shapes.
Smart Images
Figure CN222230151U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of shielding detection, and in particular to a detector moving device for shielding detection. Background Art
[0002] With the continuous development of my country's nuclear power industry, the requirements for the shielding effect of nuclear power equipment are becoming higher and higher, and the forms of equipment designed and manufactured are becoming more and more diverse, which brings a series of problems, especially the detection of the shielding performance of equipment. The nuclear power field pays the most attention to nuclear safety, first of all, to ensure the safety of personnel, so the shielding requirements for nuclear power equipment are extremely high.
[0003] At present, the shielding inspection of nuclear power equipment is usually carried out by using a radioactive source to simulate the actual working conditions. The radioactive source is placed in a shielding sleeve, the detector is placed in a protective sleeve, the shielding sleeve is placed above the workpiece, and the protective sleeve is placed below the workpiece. The radioactive source emits radiation to the workpiece to be inspected, and the detector on the other side of the workpiece detects the radiation dose of the radiation passing through the workpiece to determine whether the shielding performance of the workpiece is qualified.
[0004] When the workpiece is undergoing shielding performance testing, the staff needs to leave the testing room and cannot get close to the workpiece. Therefore, it is necessary to pre-adjust the fixed receiving point. After the test at this point is completed, the staff must re-enter the testing room and move the detector to the next test point for testing again. Such repeated operations result in a waste of labor and time costs, and low detection efficiency. Utility Model Content
[0005] In order to improve the efficiency of workpiece shielding performance detection, the present application provides a detector moving device for shielding detection.
[0006] The present application provides a detector moving device for shielding detection using the following technical solution:
[0007] A detector moving device for shielding detection includes a base frame and a translation plate, the base frame is provided with a guide rail, the translation plate is provided with a plurality of rollers, the plurality of rollers are all slidably set on the guide rail, the translation plate is provided with a driving member for driving the rollers to rotate, the translation plate is provided with a lifting assembly, the protective cover is provided at the lifting end of the lifting assembly, and the lifting assembly drives the protective cover to move up and down and makes the top end of the protective cover fit the bottom wall of the workpiece.
[0008] By adopting the above technical solution, during the process of testing the shielding performance of the workpiece, when a point is tested, the lifting assembly drives the protective cover and separates the top of the protective cover from the bottom wall of the workpiece, the driving member drives the roller to rotate, and the roller rolls on the guide rail, thereby driving the translation plate to move on the base frame, and the translation plate then drives the protective cover to move through the lifting assembly, so that the detector automatically moves to the next testing point, and the lifting assembly drives the protective cover to rise so that the top of the protective cover fits the bottom wall of the workpiece again. In this way, the detector can move automatically, and the staff does not need to enter the shielding room to carry the detector, thereby improving the efficiency of the workpiece shielding performance test.
[0009] Preferably, the lifting assembly includes a lifting plate and a plurality of lifting members, the plurality of lifting members are fixedly arranged on the top wall of the translation plate, the lifting plate is arranged at the lifting ends of the plurality of lifting members, and the protective cover is arranged on the top wall of the lifting plate.
[0010] By adopting the above technical solution, when the detector needs to be lifted or lowered, a plurality of lifting members work together to drive the lifting plate to lift and move, and the lifting plate then drives the protective cover to lift and move, thereby driving the detector to lift and move.
[0011] Preferably, a plurality of guide rods are arranged on the bottom wall of the lifting plate, and the guide rods are adapted to pass through the translation plate along the lifting direction of the lifting plate.
[0012] By adopting the above technical solution, when the lifting member drives the lifting plate to move up and down, the lifting plate drives multiple guide rods to move up and down in the translation plate, and the translation plate then limits the lifting and moving of the lifting plate through the guide rods, thereby making the lifting and moving of the lifting plate more stable.
[0013] Preferably, the lifting member is inserted into the translation plate, a support plate is fixedly provided at the top of the lifting member, the lifting end of the lifting member slides through the support plate, the support plate is fixedly provided on the translation plate, and the bottom wall of the support plate abuts against the top wall of the translation plate.
[0014] By adopting the above technical solution, the lifting member is arranged in the translation plate, which can reduce the height of the mobile device, thereby facilitating the use of the mobile device, and the support plate supports the lifting member, so that the lifting member drives the lifting plate to move more stably.
[0015] Preferably, there are two guide rails and four rollers, and every two rollers are slidably arranged on one guide rail. The driving member is a dual-axis motor and is arranged on the bottom wall of the translation plate. The two driving shafts of the driving member are respectively connected to the rollers on the two guide rails, and the two rollers on each guide rail are connected by a transmission belt.
[0016] By adopting the above technical solution, the driving member drives the two rollers on the two guide rails to rotate synchronously, and on each guide rail, the two rollers rotate synchronously through the transmission belt. In this way, the driving member can synchronously drive the four rollers to rotate synchronously, so that the translation plate moves more stably.
[0017] Preferably, a limiting ring groove is provided on the outer peripheral side wall of the roller, and the top end of the guide rail is adapted to be located in the limiting ring groove.
[0018] By adopting the above technical solution, during the rotation of the roller, the limiting ring groove cooperates with the top of the guide rail and guides and limits the movement of the roller, making the sliding of the roller more stable, thereby further improving the stability of the movement of the translation plate.
[0019] Preferably, a scale is provided on the guide rail along the sliding direction of the translation plate, an image collector is provided on the translation plate, the image collector faces the scale, a display is electrically connected to the image collector, and the display is located outside the shielding room.
[0020] By adopting the above technical solution, when the translation plate drives the detector to move to the next point, the staff outside the shielded room can observe the scale image information collected by the image collector through the display, and compare the moving distance of the detector through the scale, so that the detector can be accurately moved to the next detection point.
[0021] Preferably, it also includes a sticking plate which is detachably fixed on the top of the fixing sleeve, and a groove for fitting with the outer wall of the cylindrical workpiece is formed on the top wall of the sticking plate.
[0022] By adopting the above technical solution, when the workpiece to be inspected is a planar workpiece, the top end of the fixed sleeve abuts against the bottom wall of the workpiece; when the workpiece to be inspected is a cylindrical workpiece, the abutment plate abuts against the bottom wall of the workpiece through the groove, thereby making the mobile device suitable for inspecting workpieces of different shapes.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The driving member drives the roller to rotate, and the roller rotates on the guide rail and drives the translation plate to move on the base frame. The translation plate then drives the protective cover to move through the lifting assembly, so that the detector can automatically move to the next detection point. The lifting assembly then drives the protective cover to rise and makes the top of the protective cover fit the bottom wall of the workpiece. In this way, the staff does not need to enter the shielding room to carry the detector, thereby improving the efficiency of the workpiece shielding performance detection;
[0025] 2. With the help of the guide rods, when the lifting member drives the lifting plate to move up and down, the lifting plate drives the multiple guide rods to move up and down in the translation plate, and the translation plate then limits the lifting and moving of the lifting plate through the guide rods, so that the lifting and moving of the lifting plate is more stable;
[0026] 3. By using an image collector and a ruler, when the translation plate drives the detector to move to the next point, the staff outside the shielded room can observe the scale image information collected by the image collector through the display, and compare the moving distance of the detector through the ruler, so that the detector can be accurately moved to the next detection point. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a schematic diagram of the overall structure of the detector moving device for shielding detection in this application;
[0028] Figure 2 The detector moving device for shielding detection of this application is an exploded view of part of the structure of the lifting component to highlight the display;
[0029] Figure 3 The detector moving device for shielding detection of this application is a side view to highlight the state of detecting a planar workpiece;
[0030] Figure 4 The detector moving device for shielding detection in this application is a side view that highlights the state of detecting a cylindrical workpiece.
[0031] Figure numerals: 1. base frame; 2. translation plate; 3. guide rail; 4. roller; 5. driving member; 6. lifting assembly; 61. lifting plate; 62. lifting member; 7. protective cover; 8. detector; 9. guide rod; 10. support plate; 11. transmission belt; 12. limit ring groove; 13. scale; 14. image collector; 15. paste plate; 16. groove. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] The embodiment of the present application discloses a detector moving device for shielding detection.
[0034] Reference Figure 1 A detector moving device for shielding detection includes a base frame 1 and a translation plate 2. The base frame 1 is formed by welding and fixing a plurality of square steel pipes in the horizontal and vertical directions. A guide rail 3 is welded and fixed on the base frame 1 along its own length direction, and two guide rails 3 are installed at intervals along the width direction of the base frame 1.
[0035] Reference Figure 1 and Figure 2The translation plate 2 is rectangular, and rollers 4 are rotatably installed at the four corners of the bottom wall of the translation plate 2, and every two rollers 4 are slidably installed on a guide rail 3. A driving member 5 is fixedly installed on the bottom wall of the translation plate 2. In the present application, the driving member 5 can be selected as a dual-axis motor, and the two driving ends of the driving member 5 are respectively fixedly connected to the rollers 4 on the two guide rails 3, and the rotating shafts of the two rollers 4 on each guide rail 3 are connected through a synchronous belt transmission. The driving member 5 drives the two rollers 4 to rotate synchronously, and the two rollers 4 drive the other two rollers 4 to rotate synchronously through two synchronous belts. The four rollers 4 rotate synchronously, thereby being able to drive the translation plate 2 to move along the length direction of the base frame 1.
[0036] A limiting ring groove 12 with a right-angled triangle cross section is provided on the outer peripheral side wall of the roller 4. The guide rail 3 has a right-angled triangle cross section, and the roller 4 is placed on the guide rail 3 through the limiting ring groove 12. When the roller 4 rotates on the guide rail 3, the guide rail 3 guides and limits the movement of the roller 4 through the limiting ring groove 12, so that the roller 4 moves more stably on the guide rail 3, and further the translation plate 2 moves more stably.
[0037] A lifting assembly 6 is installed on the top wall of the translation plate 2, a protective cover 7 is installed at the lifting end of the lifting assembly 6, a detector 8 is installed in the protective cover 7, and the bottom end of the detector 8 extends outside the protective cover 7 and slides through the translation plate 2. The translation plate 2 can drive the protective cover 7 to move through the lifting assembly 6, and then drive the detector 8 to move. When a detection point is detected, the lifting assembly 6 first drives the detector 8 to descend, and the translation plate 2 then drives the detector 8 to move to the next detection point, and the lifting assembly 6 drives the detector 8 to rise. In this way, the moving device can automatically drive the detector 8 to move to the next detection point, without the need for staff to enter the shielding room to carry the detector 8, thereby improving the efficiency of the workpiece shielding performance detection.
[0038] Reference Figure 3 When the workpiece to be inspected is a planar workpiece, the top end of the protective cover 7 abuts against the bottom wall of the workpiece, making the inspection result more accurate.
[0039] Reference Figure 2 and Figure 4 The top of the protective cover 7 is detachably fixed with a plate 15 by bolts, and a groove 16 with an arc-shaped cross section is provided on the top wall of the plate 15. When the workpiece to be inspected is a cylindrical workpiece, the plate 15 is installed on the protective cover 7, and the plate 15 is attached to the bottom wall of the workpiece through the groove 16, so that the inspection result is more accurate, and the mobile device can be applied to the inspection of workpieces of different shapes.
[0040] Reference Figure 1An image collector 14 is fixedly mounted on the top wall of the translation plate 2 through a support rod, and a display is electrically connected to the image collector 14, and the display is placed outside the shielding room. A scale 13 is engraved on the guide rail 3 along its length direction, and the image collector 14 points to the scale 13. The image collector 14 collects the image of the scale 13 and transmits the image to the display. In this application, the image collector 14 can be selected as a camera.
[0041] When the translation plate 2 drives the detector 8 to move to the next detection point, it drives the image collector 14 to move synchronously. The staff observes the image of the scale 13 through the display outside the shielded room and obtains the moving distance of the detector 8, so as to facilitate the detector 8 to move to the next detection point accurately.
[0042] Reference Figure 1 and Figure 2 Specifically, the lifting assembly 6 includes a lifting plate 61 and four lifting members 62. The four lifting members 62 are installed in the translation plate 2. The lifting plate 61 is fixedly installed at the lifting ends of the four lifting members 62. The protective cover 7 is fixedly installed at the middle of the top wall of the lifting plate 61, and the detector 8 passes through the lifting plate 61. In the present application, the lifting member 62 can be selected as a hydraulic cylinder. The four lifting members 62 act on the lifting plate 61 together and drive the lifting plate 61 to move up and down, so that the detector 8 can be driven to move up and down through the protective cover 7.
[0043] A support plate 10 is fixedly mounted on the top of each lifting member 62, and the lifting end of the lifting member 62 slides through the support plate 10. The support plate 10 is circular and fixedly mounted on the top wall of the translation plate 2, and the bottom wall of the support plate 10 abuts against the top wall of the translation plate 2. When the lifting member 62 drives the lifting plate 61 to move, the support plate 10 supports the lifting member 62, thereby making the lifting member 62 more stable.
[0044] Four guide rods 9 are fixedly mounted on the bottom wall of the lifting plate 61, each guide rod 9 is located between two adjacent lifting members 62, and each guide rod 9 is adapted to drive through the translation plate 2 along the moving direction of the lifting plate 61. When the lifting member 62 drives the lifting plate 61 to move up and down, the lifting plate 61 drives the multiple guide rods 9 to move up and down in the translation plate 2, and the translation plate 2 then limits the lifting and moving of the lifting plate 61 through the guide rods 9, so that the lifting and moving of the lifting plate 61 is more stable.
[0045] The implementation principle of a detector moving device for shielding detection in an embodiment of the present application is as follows: when it is necessary to detect the next point, the driving member 5 drives the roller 4 to rotate on the guide rail 3, so that the translation plate 2 moves on the base frame 1, and the translation plate 2 drives the protective cover 7 to move through the lifting assembly 6, and the protective cover 7 drives the detector 8 to automatically move to the next detection point. In this way, there is no need for staff to enter the shielding room to carry the detector 8, thereby improving the efficiency of the workpiece shielding performance detection.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A detector moving device for shielding detection, characterized in that: The invention comprises a base frame (1) and a translation plate (2), wherein the base frame (1) is provided with a guide rail (3), the translation plate (2) is provided with a plurality of rollers (4), the plurality of rollers (4) are all slidably arranged on the guide rail (3), the translation plate (2) is provided with a driving member (5) for driving the rollers (4) to rotate, the translation plate (2) is provided with a lifting assembly (6), a protective cover (7) is arranged at the lifting end of the lifting assembly (6), and the lifting assembly (6) drives the protective cover (7) to move upward and downward so that the top end of the protective cover (7) is in contact with the bottom wall of the workpiece.
2. The detector moving device for shielding detection according to claim 1, characterized in that: The lifting assembly (6) comprises a lifting plate (61) and a plurality of lifting members (62), wherein the plurality of lifting members (62) are fixedly arranged on the top wall of the translation plate (2), the lifting plate (61) is arranged at the lifting ends of the plurality of lifting members (62), and the protective cover (7) is arranged on the top wall of the lifting plate (61).
3. The detector moving device for shielding detection according to claim 2, characterized in that: A plurality of guide rods (9) are arranged on the bottom wall of the lifting plate (61), and the guide rods (9) are adapted to pass through the translation plate (2) along the lifting direction of the lifting plate (61).
4. The detector moving device for shielding detection according to claim 2, characterized in that: The lifting member (62) is inserted into the translation plate (2), a support plate (10) is fixedly arranged at the top end of the lifting member (62), the lifting end of the lifting member (62) slides through the support plate (10), the support plate (10) is fixedly arranged on the translation plate (2), and the bottom wall of the support plate (10) abuts against the top wall of the translation plate (2).
5. The detector moving device for shielding detection according to claim 1, characterized in that: There are two guide rails (3), four rollers (4), and every two rollers (4) are slidably arranged on one guide rail (3). The driving member (5) is a double-axis motor and is arranged on the bottom wall of the translation plate (2). The two driving shafts of the driving member (5) are respectively connected to the rollers (4) on the two guide rails (3), and the two rollers (4) on each guide rail (3) are connected by a transmission belt (11).
6. The detector moving device for shielding detection according to claim 5, characterized in that: A limiting annular groove (12) is provided on the outer peripheral side wall of the roller (4), and the top end of the guide rail (3) is adapted to be located in the limiting annular groove (12).
7. The detector moving device for shielding detection according to claim 1, characterized in that: A scale (13) is arranged on the guide rail (3) along the sliding direction of the translation plate (2), an image collector (14) is arranged on the translation plate (2), the image collector (14) faces the scale (13), the image collector (14) is electrically connected to a display, and the display is located outside the shielding room.
8. The detector moving device for shielding detection according to claim 1, characterized in that: It also comprises a sticking plate (15) which is detachably fixed on the top of the fixing sleeve, and a groove (16) for sticking with the outer wall of the cylindrical workpiece is formed on the top wall of the sticking plate (15).