Locating device for LNG (Liquefied Natural Gas) ray detection

Abstract

The utility model belongs to the technical field of LNG (liquefied natural gas) ray detection, and particularly relates to a positioning device for LNG ray detection, which comprises a placing plate and a supporting column, adjusting devices are arranged in the placing plate and the supporting column, and each adjusting device comprises a first adjusting motor, an adjusting rod, two limiting frames, a second adjusting motor, two threaded rods and two lifting rods. According to the positioning device for LNG ray detection, when the position of an X-ray machine is fixed, a first adjusting motor is started, two limiting frames are controlled to clamp the X-ray machine in the middle, then the position of the X-ray machine is adjusted, during adjustment, a second adjusting motor is started, a threaded rod is controlled to rotate, a lifting rod moves up and down, and then a placing plate is controlled to move up and down; in this way, when the large LNG tank is detected, different height places of the tank body can be detected, then a third adjusting motor is started, a placing plate is controlled to move horizontally, and different horizontal positions of the tank body are detected.

Description

Technical Field

[0001] This utility model relates to the field of LNG X-ray detection technology, and in particular to a positioning device for LNG X-ray detection. Background Technology

[0002] For example, in a radiographic inspection device for LNG storage tanks disclosed on the Chinese Patent Network (application number: 202321705541.5), in order to facilitate comprehensive inspection and solve the inconvenience caused by changing LNG tanks, the LNG tank is rotated during inspection. On the other hand, the structure of three motors and electric push rods is used to quickly change the LNG tank, which brings convenience to the inspection process. Radiographic inspection of LNG is usually carried out by X-ray machine, but it lacks adjustment mechanism and limit mechanism, and cannot fix and adjust the position of the X-ray machine. When inspecting large LNG tanks, it is inconvenient to move the X-ray machine stably. Utility Model Content

[0003] To address the technical problem of the inability to stably move the X-ray machine during existing LNG X-ray inspections, this invention proposes a positioning device for LNG X-ray inspections.

[0004] This utility model proposes a positioning device for LNG X-ray detection, comprising a placement plate and a support column. Both the placement plate and the support column are equipped with an adjustment device. The adjustment device includes a first adjustment motor, an adjustment rod, two limit frames, a second adjustment motor, two threaded rods, and two lifting rods. When the first adjustment motor is started, it controls the adjustment rod to rotate, and the adjustment rod drives the two limit frames to move horizontally. When the second adjustment motor is started, it controls the threaded rod to rotate, and the two threaded rods respectively drive the two lifting rods to move up and down.

[0005] Preferably, the first adjusting motor is fixedly installed inside the placement plate, the adjusting rod is fixedly connected to the rotating shaft of the first adjusting motor, both limiting frames are slidably connected to the upper surface of the placement plate, both limiting frames are fixedly installed with movable clamping plates on their lower surfaces, both movable clamping plates are slidably inserted into the interior of the placement plate, and the X-ray machine is placed on the upper surface of the placement plate between the two limiting frames.

[0006] Through the above technical solution, the first adjusting motor controls the adjustment rod to rotate. The adjustment rod is a two-way threaded screw. When it rotates, it can control the two moving plates to move horizontally towards each other, thereby driving the two limit frames to clamp the X-ray machine in the middle.

[0007] Preferably, both of the support columns have internal grooves, both lifting rods are slidably inserted into the grooves, and a crossbar is fixedly installed between the two lifting rods.

[0008] The above technical solution connects the two lifting rods with a crossbar, allowing the two lifting rods to move up and down synchronously.

[0009] Preferably, a mounting box is fixedly installed on the left side surface of the support column located on the left, the second adjusting motor is fixedly installed inside the mounting box, a rotating rod is fixedly installed on the lower surface of the rotating shaft of the second adjusting motor, and a first bevel gear is fixedly installed on the lower surface of the rotating rod.

[0010] Through the above technical solution, the second regulating motor controls the rotating rod to rotate, which in turn drives the first bevel gear to rotate.

[0011] Preferably, a fixed bearing is fixedly installed inside the mounting box, and the inner surface of the inner shaft of the fixed bearing is fixedly connected to the outer surface of the rotating rod. Limit bearings are fixedly installed inside the two support columns, and a rotating rod is fixedly installed on the inner surface of the inner shaft of the limit bearing. The rotating rod is rotatably connected inside the support column, and a second bevel gear is fixedly installed at the leftmost and rightmost ends of the rotating rod. The outer surface of the second bevel gear meshes with the outer surface of the first bevel gear.

[0012] Through the above technical solution, the fixed bearing ensures that the rotating rod rotates stably, the limit bearing ensures that the rotating rod rotates stably, and the first bevel gear drives the second bevel gear to rotate.

[0013] Preferably, a third bevel gear is fixedly installed on the outer surface of the rotating rod near the second bevel gear, the two threaded rods are respectively threadedly connected to the inside of the two lifting rods, a fourth bevel gear is fixedly installed at the lower end of the threaded rod, the outer surface of the fourth bevel gear meshes with the outer surface of the third bevel gear, a stabilizing bearing is fixedly installed on the outer surface of the threaded rod, the stabilizing bearing is fixedly installed inside the support column, and a roller is fixedly installed on the lower surface of the support column.

[0014] Through the above technical solution, the second bevel gear drives the rotating rod to rotate, which in turn drives the third bevel gear to rotate the fourth bevel gear, causing the threaded rod to rotate and controlling the lifting rod to move up and down. The rollers facilitate the movement of the entire mechanism and make it easy to inspect.

[0015] Preferably, a horizontal plate is fixedly installed on the upper surface of the lifting rod, and a sliding plate is fixedly installed on the lower surface of the placement plate. The sliding plate is slidably inserted into the interior of the horizontal plate. A third adjusting motor is fixedly installed inside the horizontal plate. An adjusting screw is fixedly connected to the rotating shaft of the third adjusting motor. The outer surface of the adjusting screw is threadedly connected to the interior of the sliding plate. The lower surface of the placement plate is slidably connected to the upper surface of the horizontal plate.

[0016] With the above technical solution, when the third adjusting motor starts, the rotating shaft drives the adjusting screw to rotate, which in turn drives the sliding plate to move horizontally and the placement plate to move horizontally.

[0017] The beneficial effects of this utility model are as follows:

[0018] By setting up an adjustment device, when the X-ray machine is fixed in position, the first adjustment motor is started, controlling the adjustment rod to rotate. This controls the two moving plates to move horizontally towards each other, thereby driving the two limit frames to clamp the X-ray machine in the middle. Then, the position of the X-ray machine is adjusted. During adjustment, the second adjustment motor is started, controlling the rotating rod to rotate, driving the first bevel gear to rotate. The first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the rotating rod to rotate, causing the third bevel gear to drive the fourth bevel gear to rotate, thus rotating the threaded rod and controlling the lifting rod to move up and down. This, in turn, controls the horizontal plate and the placement plate to move up and down. In this way, when inspecting large LNG tanks, different heights of the tank can be inspected. Then, the third adjustment motor is started, controlling the placement plate to move horizontally, inspecting different horizontal positions of the tank, achieving a stable movement effect during LNG X-ray inspection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a positioning device for LNG X-ray detection proposed in this utility model;

[0020] Figure 2 This is a cross-sectional view of the placement plate structure of the positioning device for LNG X-ray detection proposed in this utility model;

[0021] Figure 3 This is a cross-sectional view of the support column structure of a positioning device for LNG radiation detection proposed in this utility model.

[0022] Figure 4 This is a cross-sectional view of the horizontal plate structure of a positioning device for LNG radiation detection proposed in this utility model.

[0023] In the diagram: 1. Placement plate; 11. X-ray machine; 12. Sliding plate; 2. Support column; 21. Slide groove; 22. Mounting box; 23. Fixed bearing; 24. Limit bearing; 25. Rotating rod; 26. Second bevel gear; 27. Third bevel gear; 28. Roller; 3. First adjusting motor; 4. Adjusting rod; 5. Limit frame; 51. Moving plate; 6. Second adjusting motor; 61. Rotating rod; 62. First bevel gear; 7. Threaded rod; 71. Fourth bevel gear; 72. Stabilizing bearing; 8. Lifting rod; 81. Crossbar; 82. Cross plate; 83. Third adjusting motor; 84. Adjusting screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-4 A positioning device for LNG X-ray detection includes a placement plate 1 and a support column 2. To facilitate the adjustment of the position of the X-ray machine 11, both the placement plate 1 and the support column 2 are equipped with adjustment devices. The adjustment devices include a first adjustment motor 3, an adjustment rod 4, two limit frames 5, a second adjustment motor 6, two threaded rods 7, and two lifting rods 8. When the first adjustment motor 3 is started, it controls the adjustment rod 4 to rotate, and the adjustment rod 4 drives the two limit frames 5 to move horizontally. When the second adjustment motor 6 is started, it controls the threaded rod 7 to rotate, and the two threaded rods 7 drive the two lifting rods 8 to move up and down respectively.

[0026] To facilitate the control of the two limiting frames 5 clamping the X-ray machine 11 in the middle, the first adjusting motor 3 is fixedly installed inside the placement plate 1, and the adjusting rod 4 is fixedly connected to the rotating shaft of the first adjusting motor 3. Both limiting frames 5 are slidably connected to the upper surface of the placement plate 1, and both lower surfaces of the two limiting frames 5 are fixedly installed with movable clamping plates 51. Both movable clamping plates 51 are slidably inserted into the interior of the placement plate 1. The X-ray machine 11 is placed on the upper surface of the placement plate 1 between the two limiting frames 5. The first adjusting motor 3 controls the adjusting rod 4 to rotate. The adjusting rod 4 is a two-way threaded screw. When rotated, it can control the two movable clamping plates 51 to move horizontally towards each other, thereby driving the two limiting frames 5 to clamp the X-ray machine 11 in the middle.

[0027] To ensure that the two limit frames 5 clamp the X-ray machine 11 in the middle, the interior of the two support columns 2 is provided with a sliding groove 21, and the two lifting rods 8 are slidably inserted into the interior of the sliding groove 21. A crossbar 81 is fixedly installed between the two lifting rods 8, and the crossbar 81 connects the two lifting rods 8 so that the two lifting rods 8 can move up and down synchronously.

[0028] To facilitate the control of the rotation of the rotating rod 61 and the first bevel gear 62, a mounting box 22 is fixedly installed on the left side surface of the support column 2 on the left side. The second adjusting motor 6 is fixedly installed inside the mounting box 22. The rotating rod 61 is fixedly installed on the lower surface of the rotating shaft of the second adjusting motor 6, and the first bevel gear 62 is fixedly installed on the lower surface of the rotating rod 61. The second adjusting motor 6 controls the rotation of the rotating rod 61 to drive the first bevel gear 62 to rotate.

[0029] To ensure stable rotation of the rotating rod 61 and the rotating rod 25, a fixed bearing 23 is fixedly installed inside the mounting box 22. The inner surface of the inner shaft of the fixed bearing 23 is fixedly connected to the outer surface of the rotating rod 61. Limit bearings 24 are fixedly installed inside the two support columns 2. The rotating rod 25 is fixedly installed on the inner surface of the inner shaft of the limit bearing 24. The rotating rod 25 is rotatably connected inside the support column 2. The leftmost and rightmost ends of the rotating rod 25 are fixedly installed with second bevel gears 26. The outer surface of the second bevel gear 26 meshes with the outer surface of the first bevel gear 62. The fixed bearing 23 ensures stable rotation of the rotating rod 61, and the limit bearing 24 ensures stable rotation of the rotating rod 25. The first bevel gear 62 drives the second bevel gear 26 to rotate.

[0030] To facilitate the control of the lifting rod 8's up-and-down movement, a third bevel gear 27 is fixedly installed on the outer surface of the rotating rod 25 near the second bevel gear 26. Two threaded rods 7 are threadedly connected to the interior of the two lifting rods 8 respectively. A fourth bevel gear 71 is fixedly installed at the lower end of the threaded rod 7, and the outer surface of the fourth bevel gear 71 meshes with the outer surface of the third bevel gear 27. A stabilizing bearing 72 is fixedly installed on the outer surface of the threaded rod 7, and the stabilizing bearing 72 is fixedly installed inside the support column 2. A roller 28 is fixedly installed on the lower surface of the support column 2. The second bevel gear 26 drives the rotating rod 25 to rotate, which in turn drives the third bevel gear 27 to rotate the fourth bevel gear 71, causing the threaded rod 7 to rotate and controlling the up-and-down movement of the lifting rod 8. The roller 28 facilitates the movement of the entire mechanism and makes it easy to inspect.

[0031] To facilitate the horizontal movement of the placement plate 1, a horizontal plate 82 is fixedly installed on the upper surface of the lifting rod 8, and a sliding plate 12 is fixedly installed on the lower surface of the placement plate 1. The sliding plate 12 is slidably inserted into the interior of the horizontal plate 82. A third adjusting motor 83 is fixedly installed inside the horizontal plate 82. An adjusting screw 84 is fixedly connected to the rotating shaft of the third adjusting motor 83. The outer surface of the adjusting screw 84 is threadedly connected to the interior of the sliding plate 12. The lower surface of the placement plate 1 is slidably connected to the upper surface of the horizontal plate 82. When the third adjusting motor 83 is started, the rotating shaft drives the adjusting screw 84 to rotate, which drives the sliding plate 12 to move horizontally, and thus drives the placement plate 1 to move horizontally.

[0032] By setting an adjustment device, when the position of the X-ray machine 11 is fixed, the first adjustment motor 3 is started, controlling the adjustment rod 4 to rotate, controlling the two moving clamps 51 to move horizontally towards each other, thereby driving the two limit frames 5 to clamp the X-ray machine 11 in the middle. Then, the position of the X-ray machine 11 is adjusted. During adjustment, the second adjustment motor 6 is started, controlling the rotating rod 61 to rotate, driving the first bevel gear 62 to rotate, the first bevel gear 62 to rotate, the first bevel gear 62 to rotate, the second bevel gear 26 to rotate, the second bevel gear 26 to rotate, causing the third bevel gear 27 to rotate, driving the fourth bevel gear 71 to rotate, causing the threaded rod 7 to rotate, controlling the lifting rod 8 to move up and down, thereby controlling the horizontal plate 82 and the placement plate 1 to move up and down. In this way, when inspecting large LNG tanks, different heights of the tank can be inspected. Then, the third adjustment motor 83 is started, controlling the placement plate 1 to move horizontally, inspecting different horizontal positions of the tank, achieving the effect of convenient and stable movement during LNG X-ray inspection.

[0033] Working principle: When the X-ray machine 11 is fixed in position, the first adjusting motor 3 is started, controlling the adjusting rod 4 to rotate, controlling the two moving clamps 51 to move horizontally towards each other, thereby driving the two limit frames 5 to clamp the X-ray machine 11 in the middle. Then the position of the X-ray machine 11 is adjusted. During adjustment, the second adjusting motor 6 is started, controlling the rotating rod 61 to rotate, driving the first bevel gear 62 to rotate, the first bevel gear 62 to rotate, the first bevel gear 62 to rotate, the second bevel gear 26 to rotate, the second bevel gear 26 to rotate, causing the third bevel gear 27 to rotate, driving the fourth bevel gear 71 to rotate, causing the threaded rod 7 to rotate, controlling the lifting rod 8 to move up and down, thereby controlling the horizontal plate 82 and the placement plate 1 to move up and down. In this way, when inspecting large LNG tanks, different heights of the tank can be inspected. Then the third adjusting motor 83 is started, controlling the placement plate 1 to move horizontally, and inspecting different horizontal positions of the tank.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A positioning device for LNG X-ray detection, comprising a placement plate (1) and a support column (2), characterized in that: The placement plate (1) and the support column (2) are both equipped with adjustment devices. The adjustment devices include a first adjustment motor (3), an adjustment rod (4), two limit frames (5), a second adjustment motor (6), two threaded rods (7) and two lifting rods (8). When the first adjustment motor (3) is started, it controls the adjustment rod (4) to rotate. The adjustment rod (4) drives the two limit frames (5) to move horizontally. When the second adjustment motor (6) is started, it controls the threaded rod (7) to rotate. The two threaded rods (7) drive the two lifting rods (8) to move up and down respectively.

2. The positioning device for LNG X-ray detection according to claim 1, characterized in that: The first adjusting motor (3) is fixedly installed inside the placement plate (1), the adjusting rod (4) is fixedly connected to the rotating shaft of the first adjusting motor (3), the two limiting frames (5) are slidably connected to the upper surface of the placement plate (1), the lower surface of the two limiting frames (5) is fixedly installed with a movable card plate (51), the two movable card plates (51) are slidably inserted into the interior of the placement plate (1), and the X-ray machine (11) is placed on the upper surface of the placement plate (1) between the two limiting frames (5).

3. The positioning device for LNG X-ray detection according to claim 1, characterized in that: Both of the two support columns (2) have a sliding groove (21) inside, and both of the two lifting rods (8) are slidably inserted into the sliding groove (21). A crossbar (81) is fixedly installed between the two lifting rods (8).

4. The positioning device for LNG X-ray detection according to claim 1, characterized in that: A mounting box (22) is fixedly installed on the left side surface of the support column (2) located on the left side. The second adjusting motor (6) is fixedly installed inside the mounting box (22). A rotating rod (61) is fixedly installed on the lower surface of the shaft of the second adjusting motor (6). A first bevel gear (62) is fixedly installed on the lower surface of the rotating rod (61).

5. The positioning device for LNG X-ray detection according to claim 4, characterized in that: A fixed bearing (23) is fixedly installed inside the mounting box (22). The inner surface of the inner shaft of the fixed bearing (23) is fixedly connected to the outer surface of the rotating rod (61). Limit bearings (24) are fixedly installed inside the two support columns (2). A rotating rod (25) is fixedly installed on the inner surface of the inner shaft of the limit bearing (24). The rotating rod (25) is rotatably connected inside the support column (2). A second bevel gear (26) is fixedly installed at the leftmost and rightmost ends of the rotating rod (25). The outer surface of the second bevel gear (26) meshes with the outer surface of the first bevel gear (62).

6. The positioning device for LNG X-ray detection according to claim 5, characterized in that: The outer surface of the rotating rod (25) is fixedly installed with a third bevel gear (27) near the second bevel gear (26). The two threaded rods (7) are respectively threaded into the interior of the two lifting rods (8). The lower end of the threaded rod (7) is fixedly installed with a fourth bevel gear (71). The outer surface of the fourth bevel gear (71) meshes with the outer surface of the third bevel gear (27). The outer surface of the threaded rod (7) is fixedly installed with a stabilizing bearing (72). The stabilizing bearing (72) is fixedly installed inside the support column (2). The lower surface of the support column (2) is fixedly installed with a roller (28).

7. The positioning device for LNG X-ray detection according to claim 1, characterized in that: A horizontal plate (82) is fixedly installed on the upper surface of the lifting rod (8), and a sliding plate (12) is fixedly installed on the lower surface of the placement plate (1). The sliding plate (12) is slidably inserted into the interior of the horizontal plate (82). A third adjusting motor (83) is fixedly installed inside the horizontal plate (82). An adjusting screw (84) is fixedly connected to the rotating shaft of the third adjusting motor (83). The outer surface of the adjusting screw (84) is threadedly connected to the interior of the sliding plate (12). The lower surface of the placement plate (1) is slidably connected to the upper surface of the horizontal plate (82).

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