Cleaning mechanism of nuclear power detection robot

Abstract

The utility model relates to the technical field of nuclear power equipment maintenance, in particular to a cleaning mechanism of a nuclear power detection robot, which comprises a machine body, a driving motor is mounted on the upper surface of the machine body through a telescopic mechanism, a mounting block is mounted on an output shaft of the driving motor, a mounting groove is formed in the mounting block, a servo motor is mounted in the mounting groove, and the servo motor is mounted in the mounting groove. A threaded rod is installed on an output shaft of the servo motor and sleeved with a sliding plate in a threaded mode. Mounting rods are symmetrically mounted on the mounting block, sliding openings are formed in the surfaces of the mounting rods, inserting rods are slidably inserted into the sliding openings, a scraping plate is mounted at one end of each inserting rod, a U-shaped block is fixedly mounted on each inserting rod, and an O-shaped ring is slidably arranged in each U-shaped block. When the machine body surveys and detects the inner wall of the nuclear power pipeline, the multiple scraping plates can firstly clean the pipe wall to be detected in the pipeline, the situation that the final detection result is affected due to the fact that many impurities are accumulated on the inner wall of the pipeline is avoided, and the accuracy of the detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power equipment maintenance technology, and in particular to a cleaning mechanism for a nuclear power inspection robot. Background Technology

[0002] In nuclear power plants, the piping system plays a vital role in transporting various media, such as coolants and nuclear fuel. Over time, dirt, deposits, corrosion products, and other impurities accumulate inside the pipes. These impurities can exacerbate pipe corrosion and even cause safety problems such as leaks. Therefore, it is necessary to regularly inspect the inside of the pipes using inspection robots.

[0003] Most existing inspection robots are mobile vehicles. They are placed inside pipes and controlled to scan the inner wall of the pipe while moving, thus achieving the effect of inspection. However, since inspection robots do not have a cleaning function, some impurities accumulated on the inner wall of the pipe may affect the robot's inspection results. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the prior art: since the inspection robot does not have a cleaning function, some impurities accumulated on the inner wall of the pipe may affect the robot's inspection results on the inner wall of the pipe. Therefore, a cleaning mechanism for a nuclear power inspection robot is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A cleaning mechanism for a nuclear power plant inspection robot includes a body. A drive motor is fixedly mounted on the upper surface of the body via a telescopic mechanism. An installation block is fixedly mounted on the output shaft of the drive motor. An installation groove is formed on the surface of the installation block. A servo motor is fixedly mounted in the installation groove. A threaded rod is fixedly mounted on the output shaft of the servo motor. A sliding plate is threadedly sleeved on the threaded rod.

[0007] Mounting rods are symmetrically fixedly mounted on the surface of the mounting block. A sliding opening is provided on the surface of the mounting rod, and a plug rod is slidably inserted into the sliding opening. The plug rod is restricted from being separated from the mounting rod by a limiting component. A scraper is fixedly mounted on one end of the plug rod outside the sliding opening. A U-shaped block is fixedly mounted on the surface of the plug rod at an angle. An O-ring is slidably arranged inside the U-shaped block. Mounting openings are symmetrically and vertically provided on the surface of the sliding plate, and two O-rings are fixedly mounted in the two mounting openings respectively.

[0008] Preferably, the telescopic mechanism includes an electric telescopic rod fixedly installed on the upper surface of the machine body and a mounting ring fixedly installed on the top end of the drive shaft of the electric telescopic rod, and the drive motor is fixedly installed inside the mounting ring.

[0009] Preferably, the limiting component includes a limiting rod fixedly installed in the sliding opening, and a limiting groove is horizontally opened at the end of the rod away from the scraper, and the limiting rod is slidably inserted into the limiting groove.

[0010] Preferably, both the mounting rod and the insertion rod have scales on their surfaces, which are used to quickly adjust the insertion rod to a suitable distance.

[0011] Preferably, the scraper is fixedly connected to the insert rod by screws and nuts.

[0012] Preferably, the surface of the machine body is provided with a heat dissipation vent, and a filter screen is fixedly installed inside the heat dissipation vent.

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

[0014] 1. When the unit is inspecting the inner wall of the nuclear power pipeline, multiple scrapers will first clean the pipe wall to be inspected, so as to avoid the accumulation of impurities on the inner wall of the pipeline, which would affect the final inspection results and improve the accuracy of the inspection results.

[0015] 2. Through the cooperation of the telescopic mechanism, threaded rod, slider, U-block and O-ring, the scraper used to clean the inner wall of the pipe can be used for pipes of different diameters, which improves its practicality. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the cleaning mechanism of a nuclear power plant inspection robot proposed in this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the mounting block in the cleaning mechanism of a nuclear power plant inspection robot proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram showing the disassembled mounting rod and insertion rod of the cleaning mechanism of a nuclear power plant inspection robot proposed in this utility model;

[0019] Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle.

[0020] In the diagram: 1. Body, 2. Drive motor, 3. Mounting block, 4. Servo motor, 5. Threaded rod, 6. Slide plate, 7. Mounting rod, 8. Slide opening, 9. Insert rod, 10. Scraper, 11. U-shaped block, 12. O-ring, 13. Electric telescopic rod, 14. Limiting rod, 15. Limiting groove, 16. Filter screen. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figure 1-Figure 4 A cleaning mechanism for a nuclear power plant inspection robot includes a body 1. A drive motor 2 is fixedly mounted on the upper surface of the body 1 via a telescopic mechanism. The telescopic mechanism includes an electric telescopic rod 13 fixedly mounted on the upper surface of the body 1 and a mounting ring fixedly mounted on the top end of the drive shaft of the electric telescopic rod 13. The drive motor 2 is fixedly mounted inside the mounting ring. A mounting block 3 is fixedly mounted on the output shaft of the drive motor 2. A mounting groove is opened on the surface of the mounting block 3. A servo motor 4 is fixedly mounted inside the mounting groove. A threaded rod 5 is fixedly mounted on the output shaft of the servo motor 4. A sliding plate 6 is threadedly sleeved on the threaded rod 5.

[0024] Mounting rods 7 are symmetrically fixedly mounted on the surface of mounting block 3. A sliding opening 8 is provided on the surface of mounting rod 7. A plug rod 9 is slidably inserted into the sliding opening 8. The plug rod 9 is restricted from being separated from the mounting rod 7 by a limiting component. A scraper 10 is fixedly mounted on one end of the plug rod 9 outside the sliding opening 8. A U-shaped block 11 is fixedly mounted on the surface of the plug rod 9 at an angle. An O-ring 12 is slidably arranged inside the U-shaped block 11. Mounting openings are symmetrically and vertically provided on the surface of sliding plate 6. Two O-rings 12 are fixedly installed in the two mounting openings respectively.

[0025] When it is necessary to inspect the inner wall of a nuclear power pipeline, the machine body 1 is first placed inside the pipeline. Then, by activating the electric telescopic rod 13, the drive motor 2 is moved vertically until the output shaft of the drive motor 2 is aligned with the central axis of the pipeline. At this point, the servo motor 4 is activated to rotate the threaded rod 5. The slide plate 6, which is threaded onto the threaded rod 5, moves laterally along with the two O-rings 12. The two O-rings 12 slide within the two U-shaped blocks 11. Under the pressure of the inclined plane, as the O-rings 12 move towards the drive motor 2... When the O-ring 12 moves away from the drive motor 2, the two insertion rods 9 will move away from each other. When the O-ring 12 moves away from the drive motor 2, the two insertion rods 9 will move closer to each other until both scrapers 10 are in contact with the inner wall of the pipe. At this time, the machine body 1 and the drive motor 2 are started, so that the machine body 1 moves in the pipe to inspect the inner wall of the pipe. The drive motor 2 will rotate the mounting block 3 and the two scrapers 10. The two scrapers 10 will first clean the inner wall of the pipe to be inspected, scraping off the impurities accumulated on the inner wall of the pipe, so as to avoid the accumulation of impurities on the inner wall of the pipe, which would affect the final inspection results and improve the accuracy of the inspection results.

[0026] Meanwhile, the scraper 10 used for cleaning the inner wall of the pipe can be applied to pipes of different diameters, improving its practicality.

[0027] The limiting component includes a limiting rod 14 fixedly installed in the slide 8, and a limiting groove 15 is horizontally opened at the end of the insertion rod 9 away from the scraper 10, and the limiting rod 14 is slidably inserted into the limiting groove 15.

[0028] The insertion rod 9 can only slide on the limiting rod 14, that is, it can only move laterally within the mounting rod 7 and will not move out of the sliding opening 8.

[0029] Both the mounting rod 7 and the insertion rod 9 have scales on their surfaces, which are used to quickly adjust the insertion rod 9 to move to the appropriate distance.

[0030] Operators can quickly adjust the insertion rod 9, along with the scraper 10, to the appropriate position by observing the scales on the surfaces of the mounting rod 7 and the insertion rod 9, based on the diameter of the pipe to be inspected.

[0031] The scraper 10 is fixedly connected to the insert rod 9 by screws and nuts, which facilitates the replacement of the scraper 10.

[0032] The surface of the body 1 has a heat dissipation vent, and a filter 16 is fixedly installed inside the heat dissipation vent. The heat generated by the body 1 when it is working can be dissipated from the heat dissipation vent, while the filter 16 can prevent external impurities from entering the body 1 through the heat dissipation vent.

[0033] In this invention, when it is necessary to inspect the inner wall of a nuclear power pipeline, the machine body 1 is first placed inside the pipeline. Then, the drive motor 2 is moved vertically by the telescopic mechanism until the output shaft of the drive motor 2 is aligned with the central axis of the pipeline. At this point, the servo motor 4 is started to control the threaded rod 5 to rotate. The slide plate 6, which is threaded onto the threaded rod 5, moves laterally along with the two O-rings 12. The two O-rings 12 slide within the two U-shaped blocks 11 respectively. Under the pressure of the inclined plane, as the O-rings 12 move towards the drive motor 2... When the O-ring 12 moves away from the drive motor 2, the two insertion rods 9 will move away from each other. When the O-ring 12 moves away from the drive motor 2, the two insertion rods 9 will move closer to each other until both scrapers 10 are in contact with the inner wall of the pipe. At this time, the machine body 1 and the drive motor 2 are started, so that the machine body 1 moves in the pipe to inspect the inner wall of the pipe. The drive motor 2 will rotate the mounting block 3 and the two scrapers 10. The two scrapers 10 will first clean the inner wall of the pipe to be inspected, scraping off the impurities accumulated on the inner wall of the pipe, so as to avoid the accumulation of impurities on the inner wall of the pipe, which would affect the final inspection results and improve the accuracy of the inspection results.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cleaning mechanism for a nuclear power plant inspection robot, comprising a body (1), characterized in that, A drive motor (2) is fixedly installed on the upper surface of the body (1) via a telescopic mechanism. A mounting block (3) is fixedly installed on the output shaft of the drive motor (2). A mounting groove is opened on the surface of the mounting block (3). A servo motor (4) is fixedly installed in the mounting groove. A threaded rod (5) is fixedly installed on the output shaft of the servo motor (4). A sliding plate (6) is threaded onto the threaded rod (5). The mounting block (3) has mounting rods (7) symmetrically fixedly mounted on its surface. The mounting rod (7) has a sliding opening (8) on its surface. A plug rod (9) is slidably inserted into the sliding opening (8). The plug rod (9) is restricted from separating from the mounting rod (7) by a limiting component. A scraper (10) is fixedly mounted on one end of the plug rod (9) outside the sliding opening (8). A U-shaped block (11) is fixedly mounted on the surface of the plug rod (9) at an angle. An O-ring (12) is slidably arranged inside the U-shaped block (11). The sliding plate (6) has mounting openings symmetrically and vertically opened on its surface. Two O-rings (12) are fixedly installed in the two mounting openings respectively.

2. The cleaning mechanism of a nuclear power plant inspection robot according to claim 1, characterized in that, The telescopic mechanism includes an electric telescopic rod (13) fixedly installed on the upper surface of the body (1) and a mounting ring fixedly installed on the top of the drive shaft of the electric telescopic rod (13), and the drive motor (2) is fixedly installed inside the mounting ring.

3. The cleaning mechanism of a nuclear power plant inspection robot according to claim 1, characterized in that, The limiting component includes a limiting rod (14) fixedly installed in the slide (8), and a limiting groove (15) is horizontally opened at one end of the insertion rod (9) away from the scraper (10), and the limiting rod (14) is slidably inserted into the limiting groove (15).

4. The cleaning mechanism of a nuclear power plant inspection robot according to claim 1, characterized in that, The surfaces of the mounting rod (7) and the insertion rod (9) are provided with scales, which are used to quickly adjust the insertion rod (9) to move to a suitable distance.

5. The cleaning mechanism of a nuclear power plant inspection robot according to claim 1, characterized in that, The scraper (10) is fixedly connected to the insert (9) by screws and nuts.

6. The cleaning mechanism of a nuclear power plant inspection robot according to claim 1, characterized in that, The surface of the body (1) is provided with a heat dissipation vent, and a filter screen (16) is fixedly installed inside the heat dissipation vent.

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