Ray output device

Abstract

The utility model relates to a ray output device. The ray output device comprises a motor, a fixed plate, a rotary drum and a protective shell, an element mounting groove is formed in the outer side wall of the rotary drum, and radionuclide is suitable for being placed in the element mounting groove; the protective shell is provided with a cavity with an opening in one end, the fixing plate is matched with the opening end of the protective shell, and the fixing plate is buckled at the opening end of the protective shell; the rotating drum is arranged in the cavity of the protective shell, and an output shaft of the motor penetrates through the fixing plate and extends into the cavity of the protective shell to be fixedly connected with the rotating drum, so that the rotating drum is driven to rotate in the protective shell when the output shaft of the motor rotates; a radiation hole is formed in the top of the protective shell, and radionuclide can emit rays outwards through the radiation hole. The radionuclide can be sealed and transmitted through rotation of the output shaft of the motor, the radionuclide is sealed in the protective shell when radiation detection is not needed to be carried out on coal, and radionuclide rays are transmitted through the radiation hole when radiation detection is needed to be carried out on the coal.

Description

Technical Field

[0001] This application relates to the technical field of radionuclides, and particularly relates to a ray output device. Background Art

[0002] Americium-241 is a silver-white metal that can emit γ rays. It is a radiation source and is often used in many industrial fields such as scientific research, material testing, and coal mining. The existing application technology of americium-241 can refer to a method for identifying coal gangue based on γ rays with the publication number: CN102636502A. The rays emitted by the dual-energy γ-ray radiation source pass through the coal gangue mixture and are received by the γ-ray probe. The γ-ray probe transmits the received ray attenuation characteristic information to the data analyzer, and the data analyzer processes the ray attenuation characteristic information according to the programmed procedure. However, during the detection process, the γ rays continuously maintain an outward emission state. But in daily work, sometimes it is not necessary for americium-241 to continuously carry out radiation work. At this time, in order to avoid the emission of the ray source by americium-241, americium-241 needs to be sealed. Due to the strong radiation and penetrability of americium-241, if directly allowing workers to perform sealing operations at close range to block its continued outward radiation, it will cause irreversible harm to the human body. Summary of the Invention

[0003] In view of this, this application proposes a ray output device.

[0004] According to one aspect of this application, a ray output device is provided, including: a motor, a fixing plate, a rotating cylinder, and a protective shell;

[0005] An element installation groove is formed on the outer side wall of the rotating cylinder, and the radionuclide is suitable for being placed in the element installation groove;

[0006] The protective shell is provided with a cavity with one end open. The fixing plate is matched with the open end of the protective shell, and the fixing plate is buckled on the open end of the protective shell;

[0007] The rotating cylinder is arranged inside the cavity of the protective shell. The output shaft of the motor penetrates through the fixing plate and extends into the cavity of the protective shell and is fixedly connected to the rotating cylinder, and is suitable for driving the rotating cylinder to rotate inside the protective shell when the output shaft of the motor rotates;

[0008] A radiation hole is formed at the top of the protective shell, and the radionuclide can emit rays outward through the radiation hole.

[0009] In a possible implementation manner, a trigger block is provided on one end face of the rotating cylinder facing the fixing plate; the trigger block protrudes relative to the end face of the rotating cylinder;

[0010] In a possible implementation manner, a first limit switch is provided on one side of the fixing plate facing the rotating cylinder, and is suitable for aligning the radiation hole with the element installation groove when the trigger block triggers the first limit switch.

[0011] In a possible implementation, a second limit switch is provided on the side of the fixing plate facing the rotating cylinder, which is applicable when the trigger block triggers the second limit switch, the radiation hole is misaligned with the element mounting groove.

[0012] In a possible implementation, a first stop block and a second stop block are provided on the side of the fixing plate facing the rotating cylinder; it is applicable that when the trigger block triggers the first limit switch, the trigger block contacts the first stop block; it is applicable that when the trigger block triggers the second limit switch, the trigger block contacts the second stop block.

[0013] In a possible implementation, a mounting seat is provided at the bottom of the protective shell.

[0014] In a possible implementation, it further includes: a motor housing;

[0015] The motor housing and the protective shell are respectively located on opposite sides of the fixing plate, and the motor is arranged inside the cavity of the motor housing.

[0016] In a possible implementation, the motor housing is provided with an aviation connection plug.

[0017] Advantageous effects: The sealing and penetration of the radionuclide can be achieved by the rotation of the output shaft of the motor. When the coal does not need to be radiologically detected, the radionuclide is sealed in the protective shell. When the coal needs to be radiologically detected, the radionuclide penetrates out from the radiation hole. The overall structure of this application is compact, with high starting efficiency, short operation time, and can realize remote start and stop of the outward radiation of the radionuclide. Remote operation effectively reduces the close contact between personnel and the radionuclide, reducing the possibility of harm to the human body.

[0018] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present application will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings included in the specification and constituting a part of the specification, together with the specification, illustrate the exemplary embodiments, features, and aspects of the present application, and are used to explain the principles of the present application.

[0020] Figure 1 The main structure diagram of the ray output device showing the embodiments of the present application;

[0021] Figure 2 The main structure diagram of the ray output device showing the embodiments of the present application;

[0022] Figure 3 The front view of the ray output device showing the embodiments of the present application;

[0023] Figure 4Top view of the ray output device according to an embodiment of the present application;

[0024] Figure 5 Side view of the ray output device according to an embodiment of the present application;

[0025] Figure 6 Shows Figure 3 The cross-sectional view taken along A-A in;

[0026] Figure 7 Shows Figure 3 The cross-sectional view taken along C-C in;

[0027] Figure 8 Shows Figure 3 The cross-sectional view taken along B-B in;

[0028] Figure 9 Main body structure diagram of the protective shell according to an embodiment of the present application;

[0029] Figure 10 Partial structure diagram of the ray output device according to an embodiment of the present application;

[0030] Figure 11 Main body structure diagram of the rotating cylinder according to an embodiment of the present application;

[0031] Figure 12 Partial structure diagram of the ray output device according to an embodiment of the present application;

[0032] Figure 13 Partial structure diagram of the ray output device according to an embodiment of the present application;

[0033] Figure 14 Main body structure diagram of the fixing plate according to an embodiment of the present application;

[0034] Figure 15 Main body structure diagram of the motor housing according to an embodiment of the present application. Detailed description of the specific implementation

[0035] Hereinafter, various exemplary embodiments, features, and aspects of the present application will be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0036] Among them, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0038] The special term "exemplary" herein means "serving as an example, embodiment or illustration". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0039] In addition, for better illustration of the present application, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, elements and circuits well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0040] Figure 1 The main structure diagram of the ray output device showing the embodiments of the present application; Figure 2 The main structure diagram of the ray output device showing the embodiments of the present application; As Figure 1 shown, a ray output device includes: a motor 300, a fixing plate 700, a rotating cylinder 400 and a protective shell 100; an element installation groove 410 is formed on the outer side wall of the rotating cylinder 400, and a radionuclide is suitable for being placed in the element installation groove 410; the protective shell 100 is provided with a cavity with one end open, the fixing plate 700 is buckled on the open end of the protective shell 100, the rotating cylinder 400 is arranged inside the cavity of the protective shell 100, the output shaft 310 of the motor 300 penetrates through the fixing plate 700 and extends into the cavity of the protective shell 100 to be connected with the rotating cylinder 400, and is suitable for driving the rotating cylinder 400 to rotate inside the protective shell 100 when the output shaft 310 of the motor 300 rotates; a radiation hole 110 is formed at the top of the protective shell 100, and the radionuclide can emit rays outward through the radiation hole 110.

[0041] Here, it should be noted that since the protective shell 100 sleeves the rotary drum 400, the rotary drum 400 rotates inside the protective shell 100, avoiding the exposure of the rotary drum 400 to the outside. The element installation groove 410 opened on the outer side wall of the rotary drum 400 is suitable for placing radioactive nuclides. When the element installation groove 410 is aligned with the radiation hole 110 on the protective shell 100, the radioactive nuclides emit rays to the outside through the radiation hole 110. When the element installation groove 410 is not aligned with the radiation hole 110 on the protective shell 100, the element installation groove 410 is blocked by the protective shell 100, and the radioactive nuclides cannot emit rays to the outside. Therefore, the sealing and penetration of the radioactive nuclides can be realized by the rotation of the output shaft 310 of the motor 300. When the radioactive detection of coal is not required, the radioactive nuclides are sealed inside the protective shell 100. When the radioactive detection of coal is required, the radioactive nuclides penetrate from the radiation hole 110. The overall structure of this application is compact, with high starting efficiency and short operation time. It can realize the remote start and shutdown of the outward radiation of radioactive nuclides. The remote operation effectively reduces the close contact between personnel and radioactive nuclides and reduces the possibility of harm to the human body.

[0042] In a possible implementation, as Figure 9 shown, the main body of the protective shell 100 is in a rectangular structure. The protective shell 100 is provided with a cavity 140 with one end open. The cavity 140 of the protective shell 100 is in a cylindrical cavity structure. The rotary drum 400 can directly penetrate into the interior of the cavity 140 of the protective shell 100, so that the protective shell 100 sleeves the outside of the rotary drum 400 and plays an isolation role for the rotary drum 400. Further, the diameter of the cavity 140 of the protective shell 100 needs to be greater than the diameter of the rotary drum 400, and a preset distance is provided between the inner side wall of the protective shell 100 and the outer side wall of the rotary drum 400 to ensure that the rotary drum 400 can smoothly penetrate into the protective shell 100 and rotate inside the protective shell 100, and to ensure that the trigger block 420 does not touch the inner wall of the protective shell 100 when following the rotation of the rotary drum 400, avoiding wear and abrasion between the devices.

[0043] Further, the material of the protective shell 100 is 06Cr18Ni11Ti316L.

[0044] In a possible implementation, the rotary drum 400 rotates around the axis of the rotary drum 400. As Figure 11 shown, the main body of the rotary drum 400 is in a cylindrical structure. The axis of the rotary drum 400 and the axis of the output shaft 310 are on the same straight line. The output shaft 310 passes through the central through hole 430 of the rotary drum 400 and is fixedly connected to the rotary drum 400. Thus, when the output shaft 310 rotates, the rotary drum 400 rotates together with the output shaft 310. Further, as Figure 13As shown, a locking key 311 is provided on the outer side wall of the output shaft 310, and a locking hole matching the locking key 311 is formed in the inner side wall of the rotating cylinder 400. The locking key 311 is embedded in the locking hole to achieve the fixed connection between the rotating cylinder 400 and the output shaft 310.

[0045] In a possible implementation, a threaded structure is provided on the side wall of the element mounting groove 410, and an external thread nut 450 is provided in the element mounting groove 410. The external thread nut 450 is fixed to the element mounting groove 410 by means of a threaded connection. When the radionuclide is placed in the element mounting groove 410, the external thread nut 450 is screwed tightly inside the element mounting groove 410 to limit and fix the radionuclide, so as to prevent the radionuclide from falling out of the element mounting groove 410 when the rotating cylinder 400 rotates.

[0046] In a possible implementation, as Figure 9 shown in Figure 11 Figure [not provided], the protective shell 100 is provided with a first reinforcement hole 130, and the rotating cylinder 400 is also provided with a second reinforcement hole 440. When the element mounting groove 410 overlaps and aligns with the radiation hole 110, the first reinforcement hole 130 of the protective shell 100 and the second reinforcement hole 440 of the rotating cylinder 400 rotate to the same orientation and overlap and align. At this time, screws are screwed into the first reinforcement hole 130 and the second reinforcement hole 440 to reinforce and lock the protective shell 100 and the rotating cylinder 400, so as to prevent the rotating cylinder 400 from being misaligned and obstructing the emission of rays.

[0047] In a possible implementation, as Figure 7 Figure [not provided] shows, one end of the rotating cylinder 400 close to the motor 300 protrudes with a trigger block 420. Further, as Figure 11 Figure [not provided] shows, the trigger block 420 is in a block structure, and its front surface is in a "T" shape.

[0048] In a possible implementation, as Figure 13 shown in Figure 14 Figure [not provided], the main body of the fixing plate 700 is in a rectangular plate-like structure, bolt holes 710 are formed at the four corners of the fixing plate 700, and bolt holes 150 are also provided on the side of the protective shell 100 connected to the fixing plate 700. The fixing plate 700 and the protective shell 100 are fixed together by means of bolt connection.

[0049] In a possible implementation, a first limit switch 500 is provided on the side of the fixing plate 700 facing the rotating drum 400, and is adapted to align the radiation hole 110 with the element mounting groove 410 when the trigger block 420 triggers the first limit switch 500, and the detection end of the first limit switch 500 faces the side where the trigger block 420 is located. When the trigger block 420 approaches and triggers the first limit switch 500, the opening end of the element mounting groove 410 faces the inner top of the protective shell 100 and is opposite to the radiation hole 110. At this time, the controller controls the motor 300 to stop moving, and the radioactive nuclide emits rays outward through the radiation hole 110.

[0050] In a possible implementation, a second limit switch 600 is provided on the side of the fixing plate 700 facing the rotating drum 400, which is suitable for when the trigger block 420 triggers the second limit switch 600, the radiation hole 110 and the element mounting groove 410 are misaligned, and the detection end of the second limit switch 600 is facing the side where the trigger block 420 is located. When the trigger block 420 approaches and triggers the second limit switch 600, the open end of the element mounting groove 410 faces the inner bottom of the protective shell 100. At this time, the controller controls the motor 300 to stop moving, and the radioactive nuclide is completely enclosed inside the protective shell 100, and the radioactive nuclide cannot emit rays outward.

[0051] Furthermore, the first limit switch 500 and the second limit switch 600 are located on the same horizontal plane, and the trigger block 420 triggers the first limit switch 500 and then rotates 180 degrees to trigger the second limit switch 600.

[0052] Furthermore, the first limit switch 500 and the second limit switch 600 both adopt miniature limit travel switch KW11-2.

[0053] In a possible implementation, a first stopper 720 and a second stopper 730 are provided on one side of the fixing plate 700 facing the rotating drum 400; Figure 7 and Figure 13 As shown, in order to ensure that the rotating drum 400 does not over-rotate, a first stop block 720 is set above the first limit switch 500, and a second stop block 730 is set above the second limit switch 600, so that the trigger block 420 can only rotate between the first stop block 720 and the second stop block 730, and when the trigger block 420 contacts the first stop block 720, the trigger block 420 can trigger the first limit switch 500; when the trigger block 420 contacts the second stop block 730, the trigger block 420 can trigger the second limit switch 600.

[0054] Further, such as Figure 7 As shown, the first stopper 720 and the second stopper 730 are located on a straight line where the diameter of the drum 400 is located, so the drum 400 can only rotate within 180°.

[0055] In a possible implementation, as Figure 14 shown, a relief groove 740 is formed on one side of the fixed plate 700 facing the rotary drum 400. The first limit switch 500, the second limit switch 600, the first stop block 720, and the second stop block 730 are all arranged in the relief groove 740.

[0056] In a possible implementation, as Figure 10 shown, the radiation hole 110 is a circular hole structure. The radiation hole 110 is provided with a circular sealing cover 111. The sealing cover 111 is embedded in the radiation hole 110 to isolate and seal the radiation hole 110, preventing dust and impurities from falling into the radiation hole 110. Further, the material of the sealing cover 111 is plastic.

[0057] In a possible implementation, a mounting seat 120 is provided at the bottom of the protective shell 100. As Figure 1 shown, the main body of the mounting seat 120 is in a rectangular plate-like structure, and both ends of the mounting seat 120 protrude from both sides of the bottom of the protective shell 100. Bolt holes 121 are formed in the mounting seat 120, and the overall device can be stably installed at the installation position by means of bolt connection.

[0058] In a possible implementation, as Figure 8 shown, the motor 300 and the fixed plate 700 are connected to each other by means of bolt connection. Further, a connecting member 320 is provided on the outer side wall of the motor 300. When the whole motor is in close contact with the fixed plate 700, the connecting member 320 contacts the fixed plate 700 and is fixed and locked by means of bolt connection, thereby installing the motor 300 on the fixed plate 700.

[0059] In a possible implementation, the model of the motor 300 is ZS-F187.91.

[0060] In a possible implementation, it further includes: a motor housing 200; the motor housing 200 and the protective shell 100 are respectively located on opposite sides of the fixed plate 700, and the motor 300 is arranged inside the cavity of the motor housing 200. As Figure 15 shown, the main body of the motor housing 200 is in a cuboid structure. The motor housing 200 is provided with a cavity with one end open. The open end of the motor housing 200 is buckled on the side of the fixed plate 700 connecting the motor 300. The motor housing 200 is suitable for isolating and protecting the motor 300. Further, as Figure 2 shown, bolt holes 220 are provided on two side walls of the motor housing 200. As Figure 13 shown, bolt holes 750 are also formed on two side walls of the fixed plate 700. The outer side wall of the motor housing 200 is fixedly connected to the outer side wall of the fixed plate 700 by bolts.

[0061] In a possible implementation, an aviation connection plug 210 is provided on the outer sidewall of the motor housing 200, facilitating the electrical connection between an external control device and the motor 300 to achieve the rotational control of the motor 300. Further, as Figure 15 shown, an installation hole 230 is formed on the outer sidewall of the motor housing 200, and the aviation connection plug 210 is inserted into the installation hole 230 and fixedly connected to the motor housing 200 by means of bolt connection.

[0062] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A ray output device, characterized in that: include: Motor, drum, fixing plate and protective shell; An element installation groove is provided on the outer side wall of the rotating drum, and the radioactive nuclide is suitable for being placed in the element installation groove; The protective shell is provided with a cavity with an opening at one end, and the fixing plate is buckled at the opening end of the protective shell; The rotating drum is arranged inside the cavity of the protective shell, and the output shaft of the motor passes through the fixing plate and penetrates into the cavity of the protective shell to be fixedly connected with the rotating drum, and is suitable for driving the rotating drum to rotate inside the protective shell when the output shaft of the motor rotates; A radiation hole is provided on the top of the protective shell, and the radioactive nuclide can emit radiation outward through the radiation hole.

2. The ray output device according to claim 1, characterized in that: A trigger block is provided on one end surface of the rotating drum facing the fixed plate; the trigger block is protruding relative to the end surface of the rotating drum.

3. The ray output device according to claim 2, characterized in that: A first limit switch is provided on one side of the fixing plate facing the rotating drum, and is adapted to align the radiating hole with the element mounting groove when the trigger block triggers the first limit switch.

4. The ray output device according to claim 3, characterized in that: A second limit switch is provided on one side of the fixing plate facing the rotating drum, and is adapted to cause the radial hole to be misaligned with the element mounting slot when the trigger block triggers the second limit switch.

5. The ray output device according to claim 4, characterized in that: A first stopper and a second stopper are provided on one side of the fixed plate facing the rotating drum; It is suitable for that when the trigger block triggers the first limit switch, the trigger block contacts the first stop block; It is suitable that when the trigger block triggers the second limit switch, the trigger block contacts the second stop block.

6. The ray output device according to claim 1, characterized in that: A mounting seat is provided at the bottom of the protective shell.

7. The ray output device according to claim 1, characterized in that: Also includes: Motor housing; The motor housing and the protective housing are respectively located on two opposite sides of the fixing plate, and the motor is arranged inside the cavity of the motor housing.

8. The ray output device according to claim 7, characterized in that: The motor housing is provided with an aviation connection plug.

9. The ray output device according to claim 1, characterized in that: The radiation hole is provided with a sealing cover, and the sealing cover is embedded in the radiation hole.

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