Nondestructive testing device for pressure vessel

Abstract

The utility model discloses a nondestructive testing device for a pressure vessel, and relates to the technical field of pressure vessel detection. The device comprises a bottom plate, one end of the upper surface of the bottom plate is fixedly provided with a vertical plate which is vertically arranged, one side of the vertical plate is provided with two transverse plates which are horizontally arranged, a lead screw is jointly and rotatably arranged between the two transverse plates, a connecting plate which is horizontally arranged is inserted into the lead screw in a threaded mode, and the connecting plate is provided with a clamping groove. The end, away from the vertical plate, of the connecting plate is circular and penetrates through the vertical plate, a plurality of annularly-distributed detection probes are arranged on the inner wall of the penetrating position of the connecting plate, and a movable plate is slidably arranged on the upper surface of the bottom plate. When the driving motor drives the screw rod to work, the detection probe can automatically move downwards, manual detection can be avoided, the labor intensity of workers is reduced, and along with downward movement of the detection probe and rotation of the pressure vessel, surface detection of the pressure vessel body is more comprehensive, and the accuracy of measured data is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel detection, in particular to a nondestructive detection device for a pressure vessel. Background Art

[0002] Pressure vessels are widely used in the production and life fields of machinery, petroleum, chemical industry, etc. They are one of the special equipment with high risk of pressure. Once an explosion or leakage occurs, it usually causes a destructive accident. Therefore, non-destructive testing of pressure vessels after production and use is particularly important.

[0003] At present, most of the non-destructive testing devices for the surface of pressure vessels are still in the process of workers using handheld testing probes to test the surface of pressure vessels. However, the pressure vessels themselves are relatively large, which requires a lot of time and physical strength to test. When workers do manual testing, the workload will increase and it is easy to miss the test at some locations. At the same time, due to the large size of the current pressure vessels, it is inconvenient to return the materials after the subsequent testing is completed.

[0004] In view of the above problems, the inventor proposes a pressure vessel nondestructive testing device to solve the above problems. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a nondestructive testing device for pressure vessels.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: a non-destructive testing device for pressure vessels, comprising a base plate, a vertically arranged vertical plate is fixedly provided at one end of the upper surface of the base plate, two horizontally arranged cross plates are provided on one side of the vertical plate, a screw rod is provided between the two cross plates for common rotation, a horizontally arranged connecting plate is threadedly inserted on the screw rod, the connecting plate is circular and penetrated at one end away from the vertical plate, a plurality of annularly distributed detection probes are provided on the inner wall at the penetration position of the connecting plate, a movable plate is slidably provided on the upper surface of the base plate, a base is rotatably provided on the upper surface of the movable plate, a placing groove is provided on the base, a vertically arranged rotating rod is fixedly provided at the center of the lower surface of the base, a movable groove is provided on the upper surface of the base plate near the movable plate, the bottom of the rotating rod penetrates the movable plate and extends to the lower surface of the base plate through the movable groove, and a connecting assembly is provided between the rotating rod and the screw rod.

[0007] Preferably, a driving motor is mounted on the upper horizontal plate, and an output end of the driving motor is coaxially fixed on the screw rod.

[0008] Preferably, the connecting assembly includes a rotating shaft, which is fixedly arranged at the bottom of the screw rod and passes through the bottom plate, a telescopic rod is provided on the lower surface of the bottom plate between the rotating shaft and the rotating rod, both ends of the telescopic rod are connected to the rotating shaft and the rotating rod through two meshing bevel gears, and a moving frame in an inverted U shape is provided on the lower surface of the bottom plate near the rotating shaft and the rotating rod, the rotating shaft and the rotating rod both pass through the moving frame, the moving frame close to the rotating shaft is fixedly arranged on the lower surface of the bottom plate, and the moving frame close to the rotating rod is slidably arranged in a movable groove.

[0009] Preferably, a fixing block is fixedly provided on the outer wall of the movable plate, an electric push rod is installed on the upper surface of the bottom plate, and the output end of the electric push rod is fixedly provided on the fixing block.

[0010] Preferably, the inner wall of the placement groove is provided with two symmetrically distributed grooves, a positioning block is slidably provided in the groove, a screw is installed through a bearing on the side of the positioning block away from the placement groove, and one end of the screw away from the positioning block is threadedly penetrates the base.

[0011] Preferably, a slide groove is provided on the upper surface of the movable plate, and a slider is fixedly provided on the lower surface of the base, and the slider can be slidably arranged in the slide groove.

[0012] Preferably, a groove is formed through the vertical plate, a movable block is fixedly provided on the connecting plate near one end of the vertical plate, the movable block is slidably arranged in the groove, a vertical pole is fixed in the groove, and the movable block is slidably inserted on the vertical pole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, when the screw rod is driven by the driving motor, the detection probe can be automatically moved down, which can avoid manual detection and reduce the labor intensity of the staff. With the downward movement of the detection probe and the rotation of the pressure vessel, the surface detection of the pressure vessel body is more comprehensive, further improving the accuracy of the measurement data;

[0015] 2. In the utility model, the electric push rod can directly push the movable plate to drive the pressure vessel to move out of the working range of the detection probe, thereby avoiding damage to the detection probe when returning the material. At this time, it is convenient for the staff to directly remove the pressure vessel after the inspection and return the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the vertical plate structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the bottom plate structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the bottom plate structure of the utility model when viewed from above

[0021] In the figure: 1. bottom plate; 11. vertical plate; 12. horizontal plate; 13. screw rod; 14. connecting plate; 15. detection probe; 16. groove; 17. movable block; 18. vertical pole; 19. driving motor; 2. movable plate; 21. base; 22. placement groove; 23. rotating rod; 24. rotating shaft; 25. telescopic rod; 26. bevel gear; 27. movable frame; 28. movable groove; 3. screw rod; 31. groove; 32. positioning block; 33. slider; 34. slide groove; 4. fixed block; 42. electric push rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Figure 1-4 As shown, the utility model provides a non-destructive testing device for pressure vessels, including a bottom plate 1, a vertically arranged upright plate 11 is fixedly arranged at one end of the upper surface of the bottom plate 1, two horizontally arranged horizontal plates 12 are arranged on one side of the upright plate 11, a screw rod 13 is arranged between the two horizontal plates 12 for common rotation, a horizontally arranged connecting plate 14 is threadedly inserted on the screw rod 13, the connecting plate 14 is circular and penetrates at one end away from the upright plate 11, a plurality of annularly distributed detection probes 15 are arranged on the inner wall at the penetration position of the connecting plate 14, a movable plate 2 is slidably arranged on the upper surface of the bottom plate 1, a base 21 is rotatably arranged on the upper surface of the movable plate 2, a placement groove 22 is opened on the base 21, a vertically arranged rotating rod 23 is fixedly arranged at the center of the lower surface of the base 21, a movable groove 28 is opened on the upper surface of the bottom plate 1 near the movable plate 2, the bottom of the rotating rod 23 penetrates the movable plate 2 and extends to the lower surface of the bottom plate 1 through the movable groove 28, and a connecting component is arranged between the rotating rod 23 and the screw rod 13.

[0024] A driving motor 19 is mounted on the upper horizontal plate 12 , and an output end of the driving motor 19 is coaxially fixedly disposed on the lead screw 13 .

[0025] By adopting the above technical solution, a driving motor 19 is provided to provide power for the device when performing detection.

[0026] The connecting assembly includes a rotating shaft 24, which is fixedly arranged at the bottom of the screw rod 13 and passes through the base plate 1. A telescopic rod 25 is arranged on the lower surface of the base plate 1 between the rotating shaft 24 and the rotating rod 23. The two ends of the telescopic rod 25 are connected to the rotating shaft 24 and the rotating rod 23 through two meshing bevel gears 26.

[0027] By adopting the above technical solution, the rotating shaft 24, the rotating rod 23 and the bevel gear 26 are set, so that the pressure vessel can be driven to rotate when the screw 13 is working, thereby increasing the linkage of the device. At the same time, the telescopic rod 25 is two inserted sleeve rods, and the smaller sleeve rod is inserted in the other sleeve rod through a limit bar, ensuring that the telescopic rod 25 can be directly and normally extended and rotated at the same time.

[0028] A movable frame 27 in an inverted U shape is provided on the lower surface of the base plate 1 near the rotating shaft 24 and the rotating rod 23. The rotating shaft 24 and the rotating rod 23 both penetrate the movable frame 27. The movable frame 27 near the rotating shaft 24 is fixedly arranged on the lower surface of the base plate 1, and the movable frame 27 near the rotating rod 23 is slidably arranged in the movable groove 28.

[0029] By adopting the above technical solution, the movable frame 27 can provide stability when the telescopic rod 25 and the bevel gear 26 rotate, so that they can work stably.

[0030] A fixing block 4 is fixedly provided on the outer wall of the moving plate 2 , an electric push rod 42 is installed on the upper surface of the bottom plate 1 , and an output end of the electric push rod 42 is fixedly provided on the fixing block 4 .

[0031] By adopting the above technical solution, the electric push rod 42 can control the movement of the movable plate 2, thereby controlling the loading and unloading of the pressure container on the movable plate 2.

[0032] The inner wall of the placement groove 22 is provided with two symmetrically distributed grooves 31 , in which a positioning block 32 is slidably arranged, and a screw 3 is installed via a bearing on the side of the positioning block 32 away from the placement groove 22 , and one end of the screw 3 away from the positioning block 32 is threadedly penetrated through the base 21 .

[0033] By adopting the above technical solution, the screw rod 3 is rotated to push the positioning member to move toward the pressure vessel, thereby positioning the pressure vessel to prevent it from falling down due to shaking.

[0034] A slide groove 34 is formed on the upper surface of the movable plate 2 , and a slider 33 is fixedly formed on the lower surface of the base 21 . The slider 33 can be slidably disposed in the slide groove 34 .

[0035] By adopting the above technical solution, the slider 33 and the slide groove 34 are provided so that the base 21 can stably rotate on the moving plate 2 .

[0036] A groove 16 is formed through the vertical plate 11 , and a movable block 17 is fixedly provided at one end of the connecting plate 14 close to the vertical plate 11 . The movable block 17 is slidably arranged in the groove 16 , and a vertical rod 18 is fixed in the groove 16 , and the movable block 17 is slidably inserted on the vertical rod 18 .

[0037] By adopting the above technical solution, the vertical rod 18 and the movable block 17 are provided to limit the movement of the connecting plate 14 , so that the connecting plate 14 can stably move up and down along the vertical plate 11 .

[0038] Working principle: In actual use, the pressure vessel to be inspected can be placed in the placement groove 22 on the base 21, and the positioning is pushed toward the pressure vessel by rotating the screw rod 3, so as to position the pressure vessel to prevent it from falling down due to shaking. Then, the movable plate 2 can be pulled by the electric push rod 42 and the fixed block 4 to drive the pressure vessel to move directly below the detection probe 15. At this time, the drive motor 19 is working, and the drive motor 19 will drive the screw rod 13 to rotate. The rotating screw rod 13 will drive the threaded connecting plate 14 to move downward as a whole, so that the detection probe 15 on the connecting plate 14 can perform non-destructive testing on the surface of the pressure vessel. As the screw rod 13 rotates, the rotating shaft 24 fixed at the bottom will rotate together. At this time, the rotating shaft 24 will drive the rotating rod through the meshing bevel gear 26 and the telescopic rod 25. 23 rotates, the rotating rod 23 will drive the base 21 fixed on the top to rotate, so that the base 21 will drive the pressure vessel to rotate, and when the detection probe 15 moves down with the connecting plate 14, the pressure vessel also rotates together, thereby increasing the detection range of the detection probe 15 and improving the comprehensiveness of the detection. Through the above operation, manual detection can be avoided, and the labor intensity of the staff can be reduced. With the downward movement of the detection probe 15 and the rotation of the pressure vessel, the surface detection of the pressure vessel body is more comprehensive, and the accuracy of the measurement data is further improved. When the detection is completed, the electric push rod 42 can directly push the movable plate 2 to drive the pressure vessel to move out of the working range of the detection probe 15, so as to avoid damage to the detection probe 15 when returning the material. At this time, it is convenient for the staff to directly remove the pressure vessel after detection for returning the material.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A pressure vessel nondestructive testing device, comprising a bottom plate (1), characterized in that: A vertically arranged upright plate (11) is fixedly provided at one end of the upper surface of the bottom plate (1), two horizontally arranged horizontal plates (12) are provided on one side of the upright plate (11), a screw rod (13) is provided between the two horizontal plates (12) for common rotation, a horizontally arranged connecting plate (14) is threadedly inserted on the screw rod (13), the connecting plate (14) is circular at one end away from the upright plate (11) and is arranged through, a plurality of annularly distributed detection probes (15) are provided on the inner wall of the connecting plate (14) at the position where the connecting plate (14) is arranged through, and the bottom plate (1) is provided with a plurality of annularly distributed detection probes (15). A movable plate (2) is slidably provided on the surface, a base (21) is rotatably provided on the upper surface of the movable plate (2), a placement groove (22) is provided on the base (21), a vertically arranged rotating rod (23) is fixedly provided at the center of the lower surface of the base (21), a movable groove (28) is provided on the upper surface of the bottom plate (1) near the movable plate (2), the bottom of the rotating rod (23) penetrates the movable plate (2) and extends to the lower surface of the bottom plate (1) through the movable groove (28), and a connecting component is provided between the rotating rod (23) and the screw rod (13).

2. A nondestructive testing device for pressure vessels according to claim 1, characterized in that: A driving motor (19) is installed on the upper horizontal plate (12), and an output end of the driving motor (19) is coaxially fixedly arranged on the screw rod (13).

3. A pressure vessel nondestructive testing device as claimed in claim 1, characterized in that: The connecting assembly comprises a rotating shaft (24), the rotating shaft (24) being fixedly arranged at the bottom of the screw rod (13) and penetrating the bottom plate (1), a telescopic rod (25) being arranged on the lower surface of the bottom plate (1) between the rotating shaft (24) and the rotating rod (23), and two ends of the telescopic rod (25) being connected to the rotating shaft (24) and the rotating rod (23) via two meshing bevel gears (26).

4. A nondestructive testing device for pressure vessels as claimed in claim 3, characterized in that: A moving frame (27) in an inverted U shape is provided on the lower surface of the base plate (1) near the rotating shaft (24) and the rotating rod (23); the rotating shaft (24) and the rotating rod (23) both penetrate the moving frame (27); the moving frame (27) near the rotating shaft (24) is fixedly arranged on the lower surface of the base plate (1); and the moving frame (27) near the rotating rod (23) is slidably arranged in a movable groove (28).

5. A pressure vessel nondestructive testing device as claimed in claim 1, characterized in that: A fixed block (4) is fixedly provided on the outer wall of the movable plate (2), an electric push rod (42) is installed on the upper surface of the bottom plate (1), and an output end of the electric push rod (42) is fixedly arranged on the fixed block (4).

6. A nondestructive testing device for pressure vessels according to claim 1, characterized in that: The inner wall of the placement groove (22) is provided with two symmetrically distributed grooves (31), a positioning block (32) is slidably arranged in the groove (31), a screw rod (3) is installed via a bearing on the side of the positioning block (32) away from the placement groove (22), and one end of the screw rod (3) away from the positioning block (32) is threadedly penetrated through the base (21).

7. A nondestructive testing device for pressure vessels according to claim 1, characterized in that: The upper surface of the movable plate (2) is provided with a slide groove (34), and the lower surface of the base (21) is fixedly provided with a slider (33), and the slider (33) can be slidably arranged in the slide groove (34).

8. A pressure vessel nondestructive testing device as claimed in claim 1, characterized in that: A groove (16) is formed through the vertical plate (11); a movable block (17) is fixedly provided at one end of the connecting plate (14) close to the vertical plate (11); the movable block (17) is slidably arranged in the groove (16); a vertical rod (18) is fixedly arranged in the groove (16); and the movable block (17) is slidably inserted into the vertical rod (18).

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