CN112756337A - Radiation-resistant laser cleaning device and using method - Google Patents
Radiation-resistant laser cleaning device and using method Download PDFInfo
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- CN112756337A CN112756337A CN202110008526.4A CN202110008526A CN112756337A CN 112756337 A CN112756337 A CN 112756337A CN 202110008526 A CN202110008526 A CN 202110008526A CN 112756337 A CN112756337 A CN 112756337A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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Abstract
The application provides a radiation-resistant laser cleaning device and a using method thereof, comprising the following steps: the laser transmission mechanism sequentially penetrates through the moving positioning mechanism and the entering mechanism and is connected with the cleaning mechanism at the front end of the laser transmission mechanism; the four mechanisms respectively comprise a moving platform, a hollow shaft motor, a bearing seat and a hollow shaft in sequence; positioning mechanism, pipe thread, soft steel skin; the field lens, the field lens support plate, the screw rod, the guide rod and the pneumatic motor; fiber laser, optic fibre trachea, beam expanding mirror, galvanometer. Firstly, the whole body enters a container to be cleaned through a cleaning mechanism; then adjusting the position of the cleaning mechanism; then adjusting the angle of the cleaning mechanism; and finally, starting the fiber laser to clean until the cleaning is finished. When the laser cleaning device carries out field cleaning operation in the space with high radiation dose rate, the failure rate is low, the reliability is high, the whole volume is small, and the laser cleaning device can conveniently and directly enter the field operation.
Description
Technical Field
The application relates to the field of laser cleaning, in particular to a radiation-resistant laser cleaning device and a using method.
Background
Laser cleaning is a new cleaning method, and has recently attracted much attention. Compared with the traditional chemical cleaning and mechanical cleaning, the laser cleaning has the advantages of non-contact, no thermal effect, wide application range, no environmental pollution and the like, thereby being widely applied. The existing laser cleaning technology mainly adopts a machine tool form, namely a laser cleaning head is arranged on the machine tool, a workpiece to be cleaned is conveyed to the machine tool for cleaning, and only a small amount of cleaning heads can realize field cleaning operation.
However, in the prior art, the following problems currently exist: 1) the laser cleaning device for on-site cleaning has a large number of motors and control components, and when the laser cleaning device enters a space with high radiation dose rate for cleaning operation, the failure rate of the motors and the control components is very high, so that the laser cleaning device cannot adapt to the working environment; 2) the high-radiation space cleaning operation requires closed operation, so that the laser cleaning device must integrally enter a site, the space of the cleaning site is limited, the existing laser cleaning device is large in whole, the existing laser cleaning device cannot directly enter the site for construction, and even if the space of the existing laser cleaning device entering the site is limited, the laser cleaning device is inconvenient to carry out work.
Disclosure of Invention
The purpose of this application lies in: the laser cleaning device aims at the problems that when the laser cleaning device carries out field cleaning operation in a space with high radiation dosage rate, the failure rate is high, the reliability is low, and the existing laser cleaning device is large in whole volume and cannot directly enter the field.
In order to achieve the above purpose, the present application provides the following technical solutions: a radiation-resistant laser cleaning device comprises a mobile positioning mechanism, an entry mechanism, a cleaning mechanism and a laser transmission mechanism,
the laser transmission mechanism sequentially penetrates through the mobile positioning mechanism and the interior of the access mechanism, and is connected with the cleaning mechanism at the front end of the laser transmission mechanism;
the laser transmission mechanism comprises a fiber laser, a fiber trachea, a beam expander and a vibrating mirror,
the transmitting side of the fiber laser is connected with the vibrating mirror through a fiber air pipe which sequentially penetrates through the moving and positioning mechanism and enters the inside of the mechanism, and the beam expanding mirror is arranged in the fiber air pipe and is close to the rear side of the vibrating mirror;
the mobile positioning mechanism comprises a mobile platform, a hollow shaft motor, a plurality of bearing seats and a hollow shaft,
the hollow shaft motor and the plurality of bearing seats are fixed right above the moving platform, one end of the hollow shaft motor is connected with the optical fiber laser through an optical fiber gas pipe, the other end of the hollow shaft motor is connected with one end of the hollow shaft, each bearing seat is provided with a shaft hole, the shaft holes are used for fixing the hollow shaft on the moving platform, and the other end of the hollow shaft is connected with the entering mechanism;
the entry mechanism comprises a positioning mechanism, pipe threads and a soft steel skin,
the outer wall of the soft steel skin is provided with the pipe thread, the surface of the positioning mechanism is covered by the soft steel skin, one end of the positioning mechanism is welded with the hollow shaft, and the other end of the positioning mechanism is connected with the cleaning mechanism;
the cleaning mechanism comprises a field lens, a field lens supporting plate, a screw rod, a guide rod and a pneumatic motor;
the pneumatic motor is provided with a coupler and is connected with the end part, close to the cleaning mechanism, of the mild steel skin through a bolt;
one end of the screw is connected with the pneumatic motor through the coupler, and the other end of the screw is connected with the screw hole in the field lens supporting plate in a matched mode through the external thread of the screw;
the field lens is arranged on the field lens supporting plate, the bulge of the field lens supporting plate faces to the front end direction of the field lens supporting plate, and the two guide rods are welded on the forward end face of the pipe thread along the entering mechanism.
Based on the same inventive concept, the application also provides a use method of the radiation-resistant laser cleaning device, which is implemented by the radiation-resistant laser cleaning device, and comprises the following steps:
s1, the cleaning mechanism integrally enters the container to be cleaned;
s2, adjusting the position of the cleaning mechanism;
s3, adjusting the angle of the cleaning mechanism;
and S4, starting the fiber laser to clean until the cleaning is finished.
In any one of the above technical solutions, further, step S1 includes:
the movable platform is close to a container to be cleaned, pipe threads are aligned to threaded holes of the container to be cleaned, the hollow shaft motor is started to drive the hollow shaft and the mild steel skin to rotate, the pipe threads on the outer wall of the mild steel skin enable the inlet mechanism and the cleaning mechanism to be sequentially screwed into the container to be cleaned, meanwhile, due to the fact that external thread sawteeth arranged on the outer wall of the pipe threads are meshed with internal threads on the inner wall of the container to be cleaned, sealing effect is formed, radiation materials are prevented from leaking from the container to be cleaned, and the hollow shaft motor is closed after the.
In any one of the above technical solutions, further, step S2 includes:
according to the cleaning position of the container to be cleaned, the working state of the air cylinders of each motion unit in the pipeline is adjusted according to a certain rule, the random change of various angles of the support plate in the motion space is controlled through the movement of the piston rods of the three air cylinders, the position of the cleaning mechanism in the space of the container to be cleaned is further controlled, and the cleaning mechanism is moved to the range of the part to be cleaned.
In any one of the above technical solutions, further, step S3 includes:
and starting the two pneumatic motors on the front end surface of the soft steel skin to perform rotary motion to output torque, wherein the pneumatic motors control the moving direction of the field lens supporting plate along the guide rod through the rotating direction of the connected screw rods, so that the field lens is moved along the guide rod and is used for adjusting the focal length of the field lens.
In any one of the above technical solutions, further, step S4 includes:
and starting the optical fiber laser, transmitting laser to the beam expander through the hollow shaft motor and the optical fiber air pipe with the small hole in the center of the pipe thread inner supporting plate, and expanding laser beams through the beam expander to improve the focusing effect and enable the laser energy to be uniformly dispersed. And the laser is continuously transmitted through the vibrating mirror and the field lens, is focused on the cleaning part, executes the cleaning task, and closes the fiber laser until the cleaning is finished, and withdraws the cleaning device from the container to be cleaned.
Compared with the prior art, the beneficial effects of this application are:
1. the utility model provides a resistant radiation laser belt cleaning device through replacing motor and control components and parts among the prior art with the cylinder, but the resistant radiation laser belt cleaning device of this application operation is in the operational environment of high radiation dose rate.
2. The utility model provides a resistant radiation laser belt cleaning device, the external screw thread sawtooth that sets up through the pipe thread outer wall with treat the internal screw thread meshing of washing container inner wall, can satisfy the closed operation that high radiation laser cleaned the space requirement, form the sealed effect and can not bring the radiation and leak.
3. The radiation-resistant laser cleaning device is small in size, convenient to enter field work, accurate in control, low in cleaning failure rate and high in reliability.
Drawings
The advantages of the above and/or additional aspects of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of one embodiment of a radiation tolerant laser cleaning apparatus according to the present application;
FIG. 2 is a schematic view of a screw and guide bar arrangement according to one embodiment of a radiation tolerant laser cleaning apparatus of the present application;
FIG. 3 is a schematic view of a cylinder arrangement according to an embodiment of the present application.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
Example 1:
as shown in fig. 1-3, the present application provides a radiation-resistant laser cleaning device, which comprises a mobile positioning mechanism 1, an entering mechanism 2, a cleaning mechanism 3 and a laser transmission mechanism 4,
the laser transmission mechanism 4 sequentially penetrates through the mobile positioning mechanism 1 and the access mechanism 2, and is connected with the cleaning mechanism 3 at the front end of the laser transmission mechanism;
the laser transmission mechanism 4 comprises a fiber laser 41, a fiber air pipe 42, a beam expander 43 and a vibrating mirror 44, wherein the transmitting side of the fiber laser 41 is connected with the vibrating mirror 44 through the fiber air pipe 42 which sequentially penetrates through the mobile positioning mechanism 1 and enters the inside of the mechanism 2, and the beam expander 43 is arranged in the fiber air pipe 42 and close to the rear side of the vibrating mirror 44.
The mobile positioning mechanism 1 comprises a mobile platform 11, a hollow shaft motor 12, two bearing seats 13 and a hollow shaft 14,
the hollow shaft motor 12 and the two bearing blocks 13 are fixed right above the moving platform 11, wherein the two bearing blocks 13 are connected and fastened on the moving platform 11 through bolts and used for supporting a bearing matched with the hollow shaft 14, and the hollow shaft motor 12 is connected with the moving platform 11 through a support.
One end of the hollow shaft motor 12 is connected with the optical fiber laser 41 through an optical fiber air pipe 42, the other end of the hollow shaft motor is connected with one end of the hollow shaft 14 through a coupler, each bearing seat 13 is provided with a shaft hole, the hollow shaft 14 is fixed on the movable platform 11 through the shaft holes, and the other end of the hollow shaft 14 is connected with the entering mechanism 2.
The entry mechanism 2 comprises a positioning mechanism, a pipe thread 21 and a soft steel skin 22, wherein the positioning mechanism comprises: a supporting plate 201 and a cylinder 202, and the soft steel skin 22 covers the surface of a positioning mechanism formed by connecting the cylinder 202 and the supporting plate 201.
The outer wall of the soft steel skin 22 is provided with the pipe thread 21, the outer side of the pipe thread 21 is provided with external thread sawteeth, and the external thread sawteeth are matched with internal threads on the wall surface of a container to be cleaned; the hollow shaft 14 is welded at the other end, which is connected to the hollow shaft motor 12, to a soft steel skin 22 on the surface of the positioning mechanism.
The soft steel skin 22 covers the surface of the positioning mechanism formed by connecting the cylinder 202 and the supporting plate 201, one end of the positioning mechanism is welded with the hollow shaft 14, and the other end of the positioning mechanism is connected with the cleaning mechanism 3;
the interior of the soft steel skin 22 comprises a plurality of sections of moving units which are sequentially connected, each section of moving unit comprises a supporting plate 201 and three hydraulic cylinders, two ends of each hydraulic cylinder are provided with a hinged joint 203, the thicker end of each hinged joint 203 faces backwards, and the thinner end of each hinged joint 203 faces forwards; the hinged joint 203 is respectively hinged with the front supporting plate 201 and the rear supporting plate 201, and the supporting plates 201 are welded and fixed with the inner wall of the hollow mild steel skin 22 arranged on the entering mechanism 2 without relative movement.
The center of the supporting plate 201 is provided with a small hole, the optical fiber air pipe 42 penetrates through the small hole, and the small hole is used for the optical fiber and the air pipe 42 to penetrate through.
In each motion unit, when a piston rod arranged in the cylinder 202 extends and contracts, the hinge joint 203 of the cylinder 202 drives the support plate 201 to move through three hinge points, the plane where the support plate 201 is located can be used for changing various angles of the support plate 201 in a motion space through the combination of the three hinge points, and under the driving of the cylinder 202, the soft steel skin 22 can deform along with the driving motion of the cylinder 202 and the front and back extension and left and right bending of the hollow shaft 14 and the radial enlargement of the surface of the positioning mechanism.
Under the drive of the output torque of the hollow shaft motor 12, when the hollow shaft 14 and the mild steel skin 22 are driven to rotate, the pipe thread 21 on the outer wall of the mild steel skin 22 can be meshed with the internal thread on the inner wall surface of the container to be cleaned in the rotating process, when the moving platform 11 outputs the torque of the hollow shaft motor 12, the pipe thread 21 moves forwards along the axis of the bearing along with the pipe thread 21, the cleaning mechanism 3 is correspondingly screwed into the cleaning space of the container to be cleaned, meanwhile, the pipe thread 21 is a 55-degree sealed pipe thread, and the space between the cleaning mechanism 3 and the inner wall of the container to be cleaned is sealed, so that the radiation substances in the container can be effectively prevented from being leaked.
The pneumatic motor 35 is provided with a coupler, the pneumatic motor 35 is connected with the end part of the soft steel skin 22 close to the cleaning mechanism 3 through bolts arranged on a support of the hollow shaft motor 12, and the number of the pneumatic motors 35 is at least two and the pneumatic motors are arranged around the soft steel skin 22 at intervals of 180 degrees.
The pneumatic motor 35 transmits torque to the attached screw 33, engages with the thread of the field lens support plate 32 through the screw 33, and converts the rotational motion of the screw 33 into linear motion of the field lens support plate 32 along the guide bar 34.
The field lens 31 set up in on the field lens backup pad 32, its arch is towards field lens backup pad 32 front end direction, two guide bar 34 welds on pipe thread 21 along getting into mechanism 2 terminal surface forward, as shown in fig. 2, two guide bar 34 encircles mild steel covering 22 and is interval 90 with screw rod 33 and arranges, the unthreaded hole clearance fit that guide bar 34 and field lens backup pad 32 set up for control field lens backup pad 32 linear motion's stability avoids the vibration that the screw thread rotation in-process caused, has improved laser cleaning's accuracy.
The pneumatic motor 35 transmits the torque to the screw 33 to drive the screw 33 to rotate, the rotation and rotation directions of the pneumatic motor 35 are controlled by the screw 33, the movement and the movement direction of the field lens support plate 32 connected with the screw 33 are controlled, and the distance between the field lens 31 and the lens of the galvanometer 44 along the guide rod 34 is adjusted by the movement direction to adjust the focusing of the field lens 31. The field lens 31 receives the laser light emitted from the galvanometer 44 and focuses the laser light on a plane to clean the cleaning target part of the container to be cleaned.
The optical fiber air pipe 42 sequentially penetrates through a hollow shaft channel arranged in the hollow shaft motor 12 and a hollow shaft channel arranged in the hollow shaft 14 and connected with the hollow shaft motor and a plurality of small holes at the center of the supporting plate 201 in the pipe thread 21, the small holes enter a container to be cleaned along with the pipe thread 21, a beam expanding lens 43 is arranged in the front section of the other end of the optical fiber air pipe 42, a vibrating lens 44 is arranged at the top end of the optical fiber air pipe 42 where the beam expanding lens 43 is located, a center hole is formed in the center of the supporting plate 201 at the foremost end of the pipe thread 21.
The beam expander 43 is used for expanding the laser beam, improving the focusing effect of the laser and enabling the laser energy to be uniformly dispersed. The circular galvanometer receives position signals transmitted by the screw 33 and the guide rod 34, swings within a certain angle range according to the conversion ratio of the working voltage to the rotation angle, and transmits laser energy to the field lens 31.
Under the action of the movement of the connected five-stage movement units along the axial direction of the bearing, the movement control of the cleaning mechanism 3 at any position along the axial direction of the bearing in each movement unit space is realized, and the cleaning mechanism 3 is adjusted according to the cleaning part of the container to be cleaned to perform cleaning operation until the cleaning task is finished.
Example 2:
the technical scheme of the present application is described in detail above with reference to the accompanying drawings, and based on the same inventive concept, the present application also provides a method for using the radiation-resistant laser cleaning device, which is implemented by any one of the radiation-resistant laser cleaning devices, and the method for using the device in operation comprises the following steps:
s1, the cleaning mechanism 3 integrally enters a container to be cleaned;
the movable platform 11 is close to a container to be cleaned, pipe threads 21 outside a soft steel skin 22 are aligned to threaded holes of the container to be cleaned, the hollow shaft motor 12 is started to drive the hollow shaft 14 and the soft steel skin 22 to rotate, the entering mechanism 2 and the cleaning mechanism 3 are sequentially screwed into the container to be cleaned through the pipe threads 21 on the outer wall of the soft steel skin 22, the movable platform 11 linearly reciprocates along with the hollow shaft motor, meanwhile, due to the fact that external thread sawteeth arranged on the outer wall of the pipe threads 21 are meshed with internal threads of the inner wall 5 of the container to be cleaned, sealing effect is achieved, radiation substances are prevented from leaking from the container to be cleaned, and the hollow shaft motor 12 is closed after.
S2, adjusting the position of the cleaning mechanism 3;
according to the spatial position range of the container to be cleaned, the working state of the air cylinders 202 of each motion unit in the pipeline is regulated according to a certain rule, as shown in fig. 3, the movement of the piston rods of the air cylinders 202 controls the arbitrary change of the supporting plate 201 at various angles in the motion space, the movement of the piston rods of the air cylinders is converted into the back-and-forth movement of the cleaning mechanism 3 in the cleaning space of the container to be cleaned, and then the position of the cleaning mechanism 3 in the space of the container to be cleaned is controlled, and the cleaning mechanism 3 is moved to the range of the part to be cleaned.
S3, adjusting the focal length of the cleaning mechanism 3;
two pneumatic motors 35 on the front end face of the soft steel skin 22 are started to perform rotary motion to output torque, the pneumatic motors 35 control the field lens support plate 32 to move along the direction of the guide rods 34 through the rotary direction of the connected screw rods 33 during rotation, the rotary direction of the two pneumatic motors 35 determines the moving distance and the moving direction of the field lens 31, and the field lens 31 is moved along the guide rods 34 for adjusting the focal length of the field lens 31.
S4, starting the fiber laser 41 to clean until the cleaning is finished;
and (3) starting the optical fiber laser 41, transmitting laser to the beam expander 43 through the hollow shaft motor 12 and the optical fiber air pipe 42 of the small hole in the center of the support plate 201 in the pipe thread 21, and expanding laser beams through the beam expander 43, so that the focusing effect is improved, and the laser energy is uniformly dispersed. The laser continues to be transmitted through the galvanometer 44 and the field lens 31, is focused on the cleaning part, and performs the cleaning task until the cleaning is finished, the optical fiber laser 41 is closed, and the cleaning device is withdrawn from the container to be cleaned.
The steps in the present application may be sequentially adjusted, combined, and subtracted according to actual requirements.
The units in the device can be merged, divided and deleted according to actual requirements.
Although the present application has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present application. The scope of the present application is defined by the appended claims and may include various modifications, adaptations, and equivalents of the invention without departing from the scope and spirit of the application.
Claims (13)
1. A radiation-resistant laser cleaning device is characterized by comprising a mobile positioning mechanism (1), an entering mechanism (2), a cleaning mechanism (3) and a laser transmission mechanism (4),
the laser transmission mechanism (4) sequentially penetrates through the mobile positioning mechanism (1) and the access mechanism (2) and is connected with the cleaning mechanism (3) at the front end of the laser transmission mechanism;
the laser transmission mechanism (4) comprises a fiber laser (41), a fiber air pipe (42), a beam expander (43) and a vibrating mirror (44),
the transmitting side of the optical fiber laser (41) is connected with the vibrating mirror (44) through an optical fiber air pipe (42) which sequentially penetrates through the moving positioning mechanism (1) and the entering mechanism (2), and the beam expanding mirror (43) is arranged in the optical fiber air pipe (42) and is close to the rear side of the vibrating mirror (44);
the mobile positioning mechanism (1) comprises a mobile platform (11), a hollow shaft motor (12), a plurality of bearing seats (13) and a hollow shaft (14),
the device comprises a hollow shaft motor (12) and a plurality of bearing seats (13), wherein the hollow shaft motor (12) and the bearing seats (13) are fixed right above a moving platform (11), one end of the hollow shaft motor (12) is connected with an optical fiber laser (41) through an optical fiber air pipe (42), the other end of the hollow shaft motor is connected with one end of a hollow shaft (14), each bearing seat (13) is provided with a shaft hole, the hollow shaft (14) is fixed on the moving platform (11) through the shaft holes, and the other end of the hollow shaft (14) is connected with an entering mechanism;
the entry mechanism (2) comprises a positioning mechanism, a pipe thread (21) and a soft steel skin (22),
the pipe thread (21) is arranged on the outer wall of the soft steel skin (22), the surface of the positioning mechanism is covered by the soft steel skin (22), one end of the positioning mechanism is welded with the hollow shaft (14), and the other end of the positioning mechanism is connected with the cleaning mechanism (3);
the cleaning mechanism (3) comprises a field lens (31), a field lens support plate (32), a screw (33), a guide rod (34) and an air motor (35);
the pneumatic motor (35) is provided with a coupling, and the pneumatic motor (35) is connected with the end part of the mild steel skin (22) close to the cleaning mechanism (3) through a bolt;
one end of the screw rod (33) is connected with the pneumatic motor (35) through the coupler, and the other end of the screw rod is connected with the screw hole in the field lens supporting plate (32) in a matched mode through the external thread of the screw rod (33);
the field lens (31) is arranged on the field lens support plate (32), the protrusion of the field lens support plate faces the front end direction of the field lens support plate (32), and the two guide rods (34) are welded on the forward end face of the pipe thread (21) along the entering mechanism (2).
2. The radiation-resistant laser cleaning apparatus as recited in claim 1, wherein said positioning mechanism comprises: a support plate (201) and a cylinder (202),
the soft steel skin (22) covers the surface of a positioning mechanism formed by connecting the cylinder (202) and the support plate (201).
3. The radiation-resistant laser cleaning device as claimed in claim 2, characterized in that the interior of the mild steel skin (22) comprises a plurality of sections of motion units which are connected in sequence, each section of motion unit comprises a support plate (201) and three hydraulic cylinders, two ends of each hydraulic cylinder are provided with hinges (203), the two hinges (203) are respectively hinged with the front support plate (201) and the rear support plate (201), and the support plates (201) are welded and fixed with the inner wall of the hollow mild steel skin (22) arranged on the entering mechanism (2).
4. Radiation-resistant laser cleaning device according to claim 3, characterized in that a small hole is provided in the center of the support plate (201), through which hole the fiber optic air tube (42) extends,
in each motion unit, when a piston rod arranged on the air cylinder (15) stretches, the air cylinder (15) drives the support plate (201) to move through a plurality of hinge points, the plane where the support plate (201) is located is used for changing various angles of the support plate (201) in a motion space through the combination of the three hinge points, and under the driving of the air cylinder (202), the soft steel skin (22) can deform along with the driving motion of the air cylinder (202) and the forward and backward stretching and the left and right bending of the hollow shaft (14) and the radial enlargement of the surface of a positioning mechanism.
5. Radiation-resistant laser cleaning device according to claim 4, characterized in that the fiber optic air tube (42) passes through a hollow shaft provided in the hollow shaft (14) of the hollow shaft motor (12) and the small hole in the center of the support plate (201) in the tube thread (21).
6. Radiation-resistant laser cleaning device according to claim 1, characterized in that the hollow shaft (14) of the inlet means (2) is connected at one end to the motor shaft of the hollow shaft motor (12) by means of a coupling and at the other end is welded to the soft steel skin (22) of the positioning means surface;
when the hollow shaft motor (12) drives the hollow shaft (14) and the mild steel skin (22) to rotate, the pipe thread (21) on the outer wall of the mild steel skin (22) is provided with external thread sawteeth which are meshed with the internal thread on the wall surface of the container to be cleaned.
7. Radiation-resistant laser cleaning device according to claim 3, characterized in that the pneumatic motor (35) transmits a torque to the attached screw (33), engages with the thread of the field lens support plate (32) through the screw (33), and converts the rotational movement of the screw (33) into a linear movement of the field lens support plate (32) along the guide bar (34);
the pneumatic motor (35) drives the screw rod (33) to rotate by the rotation and rotation directions of the pneumatic motor, the screw rod (33) controls the movement and the movement direction of the field lens support plate (32) connected with the screw rod, and the distance between the field lens (31) and the lens of the galvanometer (44) along the guide rod (34) is adjusted by the movement direction to adjust the focusing of the field lens (31).
8. Radiation-resistant laser cleaning device according to claim 1, characterized in that the pneumatic motors (35) are at least two, arranged at 180 ° intervals around the mild steel skin (22); two guide bars (34) encircle mild steel covering (22) and are 90 arranging at the interval with screw rod (33), unthreaded hole clearance fit that guide bar (34) and field lens backup pad (32) set up for control field lens backup pad (32) linear motion's stability.
9. A method of using a radiation-resistant laser cleaning device, the radiation-resistant laser cleaning device being implemented according to any one of claims 1 to 8, characterized by comprising the steps of:
s1, the cleaning mechanism (3) integrally enters the container to be cleaned;
s2, adjusting the position of the cleaning mechanism (3);
s3, adjusting the angle of the cleaning mechanism (3);
and S4, turning on the fiber laser (41) to clean until the cleaning is finished.
10. The method for using a radiation-resistant laser cleaning apparatus according to claim 9, wherein step S1 includes:
the movable platform (11) is moved to be close to a container to be cleaned, pipe threads (21) are aligned to threaded holes of the container to be cleaned, a hollow shaft motor (12) is started to drive a hollow shaft (14) and a mild steel skin (22) to rotate, an entering mechanism (2) and a cleaning mechanism (3) are sequentially screwed into the container to be cleaned through the pipe threads (21) on the outer wall of the mild steel skin (22), meanwhile, due to the fact that external thread sawteeth arranged on the outer wall of the pipe threads (21) are meshed with internal threads on the inner wall (5) of the container to be cleaned, sealing effect is formed to prevent radiation substances from leaking from the container to be cleaned, and the hollow shaft motor (12) is closed after the.
11. The method for using a radiation-resistant laser cleaning apparatus according to claim 9, wherein step S2 includes:
according to the cleaning position of the container to be cleaned, the working state of the air cylinders (202) of each motion unit in the pipeline is regulated according to a certain rule, the random change of the support plate (201) in a motion space at various angles is controlled through the movement of the piston rods of the three air cylinders (202), the position of the cleaning mechanism (3) in the space of the container to be cleaned is further controlled, and the cleaning mechanism (3) is moved to the range of the part to be cleaned.
12. The method for using a radiation-resistant laser cleaning apparatus according to claim 9, wherein step S3 includes:
two pneumatic motors (35) on the front end face of the soft steel skin (22) are started to rotate to output torque, the pneumatic motors (35) control the moving direction of the field lens support plate (32) along the guide rod (34) through the rotating direction of the connected screw rods (33), and the field lens (31) is moved along the guide rod and used for adjusting the focal length of the field lens (31).
13. The method for using a radiation-resistant laser cleaning apparatus according to claim 9, wherein step S4 includes:
and (2) starting the optical fiber laser (41), transmitting laser to a beam expander (43) through an optical fiber air pipe (42) of the small hole at the center of the support plate (201) in the hollow shaft motor (12) and the pipe thread (21), expanding laser beams through the beam expander (43), improving the focusing effect and enabling the laser energy to be uniformly dispersed. The laser is continuously transmitted through the vibrating mirror (44) and the field lens (31) and is focused on the cleaning part to execute the cleaning task, the fiber laser (41) is closed until the cleaning is finished, and the cleaning device is withdrawn from the container to be cleaned.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008526.4A CN112756337B (en) | 2021-01-05 | 2021-01-05 | Radiation-resistant laser cleaning device and using method |
| PCT/CN2021/128976 WO2022148118A1 (en) | 2021-01-05 | 2021-11-05 | Radiation-resistant laser cleaning device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008526.4A CN112756337B (en) | 2021-01-05 | 2021-01-05 | Radiation-resistant laser cleaning device and using method |
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| Publication Number | Publication Date |
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| CN112756337A true CN112756337A (en) | 2021-05-07 |
| CN112756337B CN112756337B (en) | 2022-01-28 |
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| CN202110008526.4A Active CN112756337B (en) | 2021-01-05 | 2021-01-05 | Radiation-resistant laser cleaning device and using method |
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| CN (1) | CN112756337B (en) |
| WO (1) | WO2022148118A1 (en) |
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| WO2022148118A1 (en) * | 2021-01-05 | 2022-07-14 | 湖南大学 | Radiation-resistant laser cleaning device and use method |
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| GB2622441A (en) * | 2022-09-16 | 2024-03-20 | United Kingdom Atomic Energy Authority | A laser tool |
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| CN112756337B (en) | 2022-01-28 |
| WO2022148118A1 (en) | 2022-07-14 |
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