CN113966065A - Automatic target changing device and method used in vacuum of cyclotron - Google Patents
Automatic target changing device and method used in vacuum of cyclotron Download PDFInfo
- Publication number
- CN113966065A CN113966065A CN202111211453.5A CN202111211453A CN113966065A CN 113966065 A CN113966065 A CN 113966065A CN 202111211453 A CN202111211453 A CN 202111211453A CN 113966065 A CN113966065 A CN 113966065A
- Authority
- CN
- China
- Prior art keywords
- target
- rod
- main body
- sheet
- disc main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/005—Cyclotrons
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H6/00—Targets for producing nuclear reactions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- High Energy & Nuclear Physics (AREA)
- Optics & Photonics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention discloses an automatic target changing device and method for a vacuum chamber of a cyclotron, wherein the device comprises: the target disc main body, the target removing structure, the target rod, the target sheet and the corresponding control mechanism are arranged in the vacuum chamber of the cyclotron; the target disc main body is a rotatable target disc main body, and target disc target bins for storing target sheets are uniformly distributed on the side end face of the rotatable target disc main body; the control mechanism controls the target disc main body, the target rod and the target removing mechanism to cooperate to complete automatic target loading and automatic target removing; the method comprises the following steps: when the target is loaded, the target disc main body and the target rod respectively rotate to the stations which are matched with each other when the target is loaded, so that the target loading process is completed; when the target is removed, the target disc main body and the target rod respectively rotate to the stations matched with each other when the target is removed, so that the target removing process is completed. The invention can realize the on-line target changing of the stripping target only by adding a kinematic pair, namely the target disk rotates and matching with the target rod, the target removing device and the control system, and has low complexity and easy realization.
Description
Technical Field
The invention relates to the technical field of stripping targets of cyclotrons, in particular to an automatic target changing device and method used in vacuum of a cyclotrons.
Background
In the cyclotron, the accelerated particles can adopt a stripping extraction mode, after the particles are accelerated to a specified energy, the particles pass through a stripping film at a specified position, certain charges are stripped off and converted into particles with reverse potential with the original particles, and particle beams are extracted along an extraction track, so whether the stripping film can keep normal working conditions at a stripping point or not is the key point of whether the extracted beam can be stripped or not, and is also one of the key points of whether the accelerator can reach design and use performance. Since the release film is damaged by energy deposition during charge peeling, the release film is easily damaged after a certain period of operation, and the release film needs to be replaced.
The method for replacing the stripping film in the prior art comprises the following steps: once the stripping film is found to be damaged, the machine can only be stopped, the vacuum is removed, the vacuum is opened again, the stripping target is taken out, the damaged stripping film on the stripping target is removed, and the stripping target is replaced by a new stripping film. The biggest problems of the method are that: if the cyclotron is stopped when the beam is out of work because the stripping film is broken, the radiation dose is very large, manual replacement is impossible at the time, and the cyclotron cannot be used after being stopped for 1 to 2 days.
In order to solve the problem of automatic replacement of the peeling film, patent nos.: 201810726365.0, patent name: a rotary target changing mechanism for a cyclotron, which has the problem that the scheme only describes a rotatable disk structure for storing target pieces, and solves the problems as described in the specification: compared with the traditional positioning mode, the precise positioning scheme of the stripping leading-out rotary target changing mechanism for the cyclotron provided by the invention has greatly improved positioning accuracy, and thus, the precise positioning scheme solves the problem that the positioning accuracy of a target disc is only the problem of the positioning accuracy of the target disc, but not a complete structure of a set of target changing process, the target changing process comprises target loading and target removing, and the two processes are added together to form a complete process. For example, the first patent describes no structure for stripping the target, but only the mechanism of the target disk, but does not describe any structure for stripping the target, and the "loading" process cannot be realized; second, the patent does not describe a "targeting" structure. The rotatable disc structure is provided with 10 standby target sheets to be replaced, when a current stripping film is damaged, a new stripping film can be replaced only by removing the damaged stripping film on the current stripping target, and the technical scheme does not mention a structure of 'target removal'. Therefore, the patent is only a structure for keeping the target plate and a structure for accurately positioning the target plate, but not a target changing structure. Patent numbers: 201810682653.0, patent name: the proposal of the stripping target motion control system of the accelerator and the control method thereof has the following problems: first, only the electrical structure of the turntable or the peeling target is described, but no mechanical structure is described, for example, only how the driving device of the peeling target drives the motor to drive the peeling target is described, and no special structure is described when the conventional peeling target is used for realizing automatic target changing, that is, no structure is described for the target head of the peeling target, so that the target sheet remained on the turntable of the peeling target can be extracted and mounted on the target head. Secondly, only the control of target loading is recorded, but the control process of target unloading is not recorded, when a damaged target sheet is left on a target head for stripping the target, a new target sheet can be loaded only by taking down the damaged target sheet on the current target head, and because the whole target replacing process is fully automatic, when the control system lacks the control of the target unloading process, the next target loading process can be influenced, therefore, the control of the target unloading process and the control of the target loading process are interdependent and complementary. Therefore, the "system for controlling the movement of the peeled target of the accelerator and the control method thereof" cannot solve the problem of automatic target replacement in the vacuum of the cyclotron.
In summary, the first patent (patent No. 201810726365.0, title: a rotary target changing mechanism for a cyclotron) lacks the description about the target stripping structure and the target removing structure, only describes the structure of the rotatable target disk for storing the target plate, and is not a complete full-automatic target changing structure due to the three-to-two deficiency; the control system and control method of the second patent (patent No. 201810682653.0, patent name: control system of the motion of the target to be peeled of the accelerator and control method thereof) only describes the electrical structure, but does not describe the mechanical structure, and the mechanical structure plus the electrical structure is necessary to complete the automatic target changing, while the missing mechanical structure of the second patent, such as the structure of the target to be peeled and the structure of the target to be removed, is not described at all in the first patent, therefore, neither patent of the prior art can solve the problem of the automatic target changing.
Disclosure of Invention
The invention provides an automatic target changing device and method used in vacuum of a cyclotron, aiming at solving the problem that the prior art does not have a complete mechanical structure, a control system and a control method for automatic target changing.
In order to solve the technical problem, the invention adopts the following technical scheme:
an automatic target changing device used in the vacuum of a cyclotron is shown in figures 1-1, 1-2, 1-3, 2-1 and 2-2, and is characterized in that: this automatic trade target device includes: the device comprises a target disc main body 1-1 arranged in the vacuum of a cyclotron, a target removing structure 1-3 arranged on the target disc main body, a target rod 2 used for extending into the cyclotron along a target disc opening 1-5 of the target disc main body to perform stripping charge telescopic motion, a target sheet 3 arranged at the head of the target rod 2 and a corresponding control mechanism; the target disc main body 1-1 is a rotatable target disc main body 1-1, and target disc target bins 1-2 for storing target pieces 3 are uniformly distributed on the side end surface of the rotatable target disc main body 1-1; the control mechanism controls the target disc main body 1-1, the target rod 2 and the target removing mechanism 1-3 to be matched and move relatively to finish automatic target loading and automatic target removing, thereby realizing automatic target changing.
The target rod 2 is provided with a clamping device 2-1 at the head part of the target rod 2 and a rod part 2-2 of the target rod; the target rod head clamping device 2-1 comprises an adjusting nut 2-1-1 and a fork head 2-1-2; 2-1-3 parts of protective side, 2-1-4 parts of top sheet, 2-1-5 parts of spring and 2-1-6 parts of top bead; the adjusting nut 2-1-1 is used for adjusting the pressure of the spring 2-1-5 on the top bead 2-1-6, the fork 2-1-2 is used for clamping the upper surface and the lower surface of the tail part of the target plate 3, and the protecting side 2-1-3 is used for clamping the left side and the right side of the tail part of the target plate 3; the installation angle of the adjusting nut 2-1-1 is parallel to the opening direction of the target removing structure 1-3 and is installed at the position of the target head 2, which is at the same side of the opening direction of the target removing structure 1-3.
The target plate 3 is provided with a target frame 3-1, a stripping film 3-2, a positioning hole 3-3 and a target plate tail part 3-4, the positioning hole 3-3 is arranged at the tail part of the target plate, the shape and the size of the positioning hole 3-3 are matched with those of a target rod top bead 2-1-6, when the tail part of the target plate 3 is inserted into a fork 2-1-2 and a protection side 2-1-3 of the target rod, the top bead 2-1-6 of the target rod is pressed into the positioning hole 3-3 of the target plate under the pressure of a spring, and therefore the target plate is positioned on the target rod.
The target cabin 1-2 of the target plate is provided with an adjusting nut 1-2-1 and a spring 1-2-2; 1-2-3 parts of a top block and 1-2-4 parts of a top bead; the outer circumference of the adjusting nut 1-2-1 is provided with external threads which can be screwed into corresponding threaded holes of the target disc main body 1-1, and the pressing spring 1-2-2 presses the top balls 1-2-4 against the side surface of the target sheet 3 through the top block 1-2-3, so that the target sheet 3 is lightly pressed in a target bin of the target disc, and the target sheet 3 is prevented from shaking in the target bin 1-2 when the target disc rotates.
The target removing mechanism 1-3 is arranged on one side of the target disc opening 1-5, the target removing mechanism 1-3 is provided with a semicircular opening, the direction of the semicircular opening is consistent with the rotating direction of the target disc main body 1-1 during target removing, and the size of the semicircular opening is matched with the size of the target rod head clamping mechanism 2-1.
An automatic target changing method in vacuum of a cyclotron is characterized in that: the automatic target changing method comprises the following steps:
step one, when the target is loaded, the control mechanism controls the target disc main body 1-1 and the target rod 2 to respectively rotate to the stations which are matched with each other when the target is loaded, so that the target loading process is completed;
and step two, when the target is removed, the control mechanism controls the target disc main body 1 and the target rod 2 to respectively rotate to the stations which are matched with each other when the target is removed, so that the target removing process is completed.
The target loading process of the first step specifically comprises the following steps:
1) the control mechanism controls the target disc main body 1-1 to rotate along the position of the target disc shaft hole 1-4, so that the position of the current target disc target bin 1-2 of the target disc main body 1-1 is over against the opening of the clamping mechanism 2-1 at the front end of the target rod;
2) the control mechanism controls the target rod 2 to move towards the target disc main body 1-1, so that the clamping mechanism 2-1 at the front end of the target rod 2 abuts against and locks a target handle at the tail part of a target sheet on the target bin 1-2 of the current target disc;
3) the control mechanism controls the target rod 2 to move back to drive the target handle at the tail part of the current target slice 3, and the target slice 3 corresponding to the handle is taken out, so that the target slice 3 is installed on the target rod 1, and the target installation process is completed.
The second step of the target removing process comprises the following specific steps:
1) the control mechanism controls the target disc main body 1-1 to rotate, so that the target removing structure 1-3 on the target disc main body 1-1 enters a target removing station;
2) the control mechanism moves the target rod 2 provided with the target sheet 3 to a target removing preparation position;
3) the control mechanism controls the target removing mechanism 1-3 to continue rotating from the target removing station to a position where the clamping mechanism 2-1 at the front end of the target rod can be locked;
4) the control mechanism controls the target rod 2 to move backwards, and the target removing structure 1-3 clamps the target sheet 3 out of the target rod head clamping mechanism 2-1.
Advantageous effects of the invention
According to the technical scheme provided by the invention, the online target replacement of the stripped target can be realized only by adding a kinematic pair, namely the target disk rotates, and then the target rod, the target removing device and the control system are matched, so that the equipment is low in complexity and easy to realize. The whole process of target changing is carried out automatically in vacuum. Because a plurality of target plates are reserved on the target plate and the replacement times of the whole year are enough maintained, new target plates can be replaced on the target plate at one time when the equipment is overhauled at the end of the year, and the problem that the target can be replaced only by stopping for a few days midway due to the damage of the target plates and scattering radiation, and the use of the equipment is seriously influenced is solved.
Drawings
FIG. 1-1 is a schematic view of a target disk;
FIGS. 1-2 are schematic diagrams of target magazine of target tray;
FIGS. 1-3 are schematic diagrams of target structures;
FIG. 2-1 is a schematic representation of a target stem;
FIG. 2-2 is a partial structural outline view of the target head;
2-3 are sectional views of partial structures of the target head;
FIG. 3 is a diagram of the target replacement process-initial profile of the present invention;
in the figure, the target rod and the target plate are both in initial positions;
FIG. 4 is a target change process of the present invention-aligning the target plate;
FIG. 5 shows the process of changing targets of the present invention-pressing the target disk;
FIG. 6 is a process of changing targets-pulling out the target pieces in accordance with the present invention;
FIG. 7 is the automatic target changer of the present invention-rotated to the operating position;
FIG. 8 is a view of the automatic target changer of the present invention-in a working position;
FIG. 9 is the process of targeting of the present invention-reaching a target-targeting location;
FIG. 10 is a detargeting process-ready for detargeting in accordance with the present invention;
FIG. 11 is a process of targetting off of the present invention-removal of the target;
in the figure, 1: a target disc; 2: a target bar; 3: target sheet;
1-1: a target disk body; 1-2: a target plate target bin; 1-2-1: adjusting the nut; 1-2-2: a spring; 1-2-3: a top block; 1-2-4: a top bead; 1-2-5: a strip-shaped target slot; 1-3: a targeting structure; 1-4: a target plate shaft hole; 1-5: a target disc opening;
2-1: a target rod head clamping mechanism; 2-2: a target rod portion; 2-1-1: adjusting nuts 2-1-2: a fork head; 2-1-3: protecting the side; 2-1-4: a topsheet; 2-1-5: a spring; 2-1-6: a top bead;
3: target sheet; 3-1: a target frame; 3-2: stripping the film; 3-3: positioning holes; 3-4: the tail part of the target sheet;
Detailed Description
Design principle of the invention
The design difficulty of the invention is as follows: the design difficulty of the invention is that the simplest and most precise method is adopted to realize full-automatic target changing, which is different from the conventional automatic method. There are many methods of target changing, many of which are capable of achieving fully automatic target changing, but not necessarily the simplest, nor necessarily the most elaborate. The invention fully embodies the simple, exquisite and practical design thought in two aspects:
firstly, the exquisite design of the target taking process:
in the target taking process, the pressure of the target head spring 2-1-5 on the top bead 2-1-6 is larger than the pressure of the target bin spring 1-2-2 on the top bead 1-2-4, so that the target 3 can be taken out only when the target rod 2 takes out the target 3 from the target bin 1-2 of the target disk, otherwise, when the target rod 2 clamps the target 3 and moves backwards, the target 3 can fall off from the target head 2 because the friction force of the top bead of the target rod 2 on the target 3 is smaller than the friction force of the target bin on the top bead 1-2-4 of the target disk. The structure of the design of the embodiment is embodied in that the tail part of the target plate 3 is provided with a sunken positioning hole, the top beads 2-1-6 are pressed into the positioning hole, the friction force is increased, the target plate target bin 1-2 and the top beads 1-2-4 are in contact with the plane of the target frame 3-1 of the target plate 3, the target plate 3 is slightly pressed in the target bin of the target plate through the pressure of the top beads 1-2-4 on the plane of the target frame 3-1, and the target plate 3 is prevented from shaking in the target bin 1-2 when the target plate rotates. As the former top ball contacts with a concave positioning hole and the latter top ball contacts with a plane, the pressure of the target head spring 2-1-5 on the top ball 2-1-6 is larger than the pressure of the target chamber spring 1-2-2 on the top ball 1-2-4.
Secondly, the exquisite design of the installation angle of the target removing structure 1-3 is as follows: the position of the target removing structure 1-3 is fixed once the target removing structure is installed, the target rod 2 only can do linear telescopic motion from beginning to end and cannot rotate, in the target removing process, the target removing structure 1-3 with fixed angle positions cannot clamp the target head clamping mechanism 2-1 with fixed angle positions when reaching a preset station only by the rotation angle of the target plate, and the installation angle of the target removing structure 1-3 is matched with the rotation angle of the target plate 1-1, specifically: when the target removing structure 1-3 is in a non-working state, the installation angle of the target removing structure on one side of the target disc opening 1-5 does not occupy the space of the target disc opening 1-5 as much as possible, but can not completely avoid the space of the target disc opening 1-5, and the installation angle of the target disc opening 1-5 meets the following requirements: when the target removing structure 1-3 reaches the preset station of the target removing, the contact area of the opening and the clamping mechanism 2-1 is the maximum area, namely when the target removing structure 1-3 reaches the station of the target head clamping mechanism, the opening direction is parallel to the ground.
Thirdly, the debugging method is simple. The force applied to the two beads 2-1-6 at the head of the target rod and the force applied to the two beads 1-2-4 in the target chamber must be matched accurately to ensure that the target rod can take out the target from the target chamber. But the method of debugging these two methods is very simple: the design structure is as follows: the target rod clamping mechanism 2-1 and the target cabin 1-2 of the target disc are both provided with the adjusting nut 2-1-1 and the adjusting nut 1-2-1 for adjusting force, the adjustment can be performed in advance in an atmospheric environment during adjustment, and the adjustment method is very simple.
Based on the principle of the invention, the invention designs an automatic target changing device used in the vacuum of the cyclotron.
An automatic target changing device used in the vacuum of a cyclotron is shown in figures 1-1, 1-2, 1-3, 2-1 and 2-2, and is characterized in that: this automatic trade target device includes: the device comprises a target disc main body 1-1 arranged in the vacuum of a cyclotron, a target removing structure 1-3 arranged on the target disc main body, a target rod 2 used for extending into the cyclotron along a target disc opening 1-5 of the target disc main body to perform stripping charge telescopic motion, a target sheet 3 arranged at the head of the target rod 2 and a corresponding control mechanism; the target disc main body 1-1 is a rotatable target disc main body 1-1, and target disc target bins 1-2 for storing target pieces 3 are uniformly distributed on the side end surface of the rotatable target disc main body 1-1; the control mechanism controls the target disc main body 1-1, the target rod 2 and the target removing mechanism 1-3 to be matched and move relatively to finish automatic target loading and automatic target removing, thereby realizing automatic target changing.
Supplementary explanation:
the control mechanism of the invention comprises a driving device, a collecting device and a control device, and the contents of the three parts are as follows: 201810682653.0, patent name: the same parts of the stripping target motion control system of the accelerator and the control method thereof are not described in detail herein.
The target rod 2 is provided with a clamping device 2-1 at the head part of the target rod 2 and a rod part 2-2 of the target rod; the target rod head clamping device 2-1 comprises an adjusting nut 2-1-1 and a fork head 2-1-2; 2-1-3 parts of protective side, 2-1-4 parts of top sheet, 2-1-5 parts of spring and 2-1-6 parts of top bead; the adjusting nut 2-1-1 is used for adjusting the pressure of the spring 2-1-5 on the top bead 2-1-6, the fork 2-1-2 is used for clamping the upper surface and the lower surface of the tail part of the target plate 3, and the protecting side 2-1-3 is used for clamping the left side and the right side of the tail part of the target plate 3; the installation angle of the adjusting nut 2-1-1 is parallel to the opening direction of the target removing structure 1-3 and is installed at the position of the target head 2, which is at the same side of the opening direction of the target removing structure 1-3.
The target plate 3 is provided with a target frame 3-1, a stripping film 3-2, a positioning hole 3-3 and a target plate tail part 3-4, the positioning hole 3-3 is arranged at the tail part of the target plate, the shape and the size of the positioning hole 3-3 are matched with those of a target rod top bead 2-1-6, when the tail part of the target plate 3 is inserted into a fork 2-1-2 and a protection side 2-1-3 of the target rod, the top bead 2-1-6 of the target rod is pressed into the positioning hole 3-3 of the target plate under the pressure of a spring, and therefore the target plate is positioned on the target rod.
Supplementary explanation:
in fig. 1-3, the target holder 3-1 and the release film 3-2 are assembled in advance to constitute a target sheet as a whole; when the stripping film 3-2 is damaged, the stripping film is discarded together after being replaced.
The target cabin 1-2 of the target plate is provided with an adjusting nut 1-2-1 and a spring 1-2-2; 1-2-3 parts of a top block and 1-2-4 parts of a top bead; the outer circumference of the adjusting nut 1-2-1 is provided with external threads which can be screwed into corresponding threaded holes of the target disc main body 1-1, and the pressing spring 1-2-2 presses the top balls 1-2-4 against the side surface of the target sheet 3 through the top block 1-2-3, so that the target sheet 3 is lightly pressed in a target bin of the target disc, and the target sheet 3 is prevented from shaking in the target bin 1-2 when the target disc rotates.
The target removing mechanism 1-3 is arranged on one side of the target disc opening 1-5, the target removing mechanism 1-3 is provided with a semicircular opening, the direction of the semicircular opening is consistent with the rotating direction of the target disc main body 1-1 during target removing, and the size of the semicircular opening is matched with the size of the target rod head clamping mechanism 2-1.
An automatic target changing method in vacuum of a cyclotron is shown in figures 3-11, and is characterized in that: the self-locking device
The moving target changing method comprises the following steps:
step one, when the target is loaded, the control mechanism controls the target disc main body 1-1 and the target rod 2 to respectively rotate to the stations which are matched with each other when the target is loaded, so that the target loading process is completed;
and step two, when the target is removed, the control mechanism controls the target disc main body 1 and the target rod 2 to respectively rotate to the stations which are matched with each other when the target is removed, so that the target removing process is completed.
The target loading process of the first step specifically comprises the following steps:
1) the control mechanism controls the target disc main body 1-1 to rotate along the position of the target disc shaft hole 1-4, so that the position of the current target disc target bin 1-2 of the target disc main body 1-1 is over against the opening of the clamping mechanism 2-1 at the front end of the target rod;
2) the control mechanism controls the target rod 2 to move towards the target disc main body 1-1, so that the clamping mechanism 2-1 at the front end of the target rod 2 abuts against and locks a target handle at the tail part of a target sheet on the target bin 1-2 of the current target disc;
3) the control mechanism controls the target rod 2 to move back to drive the target handle at the tail part of the current target slice 3, and the target slice 3 corresponding to the handle is taken out, so that the target slice 3 is installed on the target rod 1, and the target installation process is completed.
The second step of the target removing process comprises the following specific steps:
1) the control mechanism controls the target disc main body 1-1 to rotate, so that the target removing structure 1-3 on the target disc main body 1-1 enters a target removing station;
2) the control mechanism moves the target rod 2 provided with the target sheet 3 to a target removing preparation position;
3) the control mechanism controls the target removing mechanism 1-3 to continue rotating from the target removing station to a position where the clamping mechanism 2-1 at the front end of the target rod can be locked;
4) the control mechanism controls the target rod 2 to move backwards, and the target removing structure 1-3 clamps the target sheet 3 out of the target rod head clamping mechanism 2-1.
Supplementary explanation:
after the waste target plate is detached from the target rod 2, the target plate 1-3 directly falling in the vacuum is stuck out, and the waste target plate of the metal target plate waste cylinder is thrown away at one time when the annual inspection is finished.
Example one
As shown in fig. 1-1, the target plate 1 can rotate around the target plate shaft hole 1-4, and has a plurality of target plate target compartments 1-2 (12 in the figure, but not limited to 12) on it, and the target plate 3 can be loaded in the target plate target compartments 1-2 in advance.
As shown in FIGS. 2-1, 2-2 and 2-3, the front end of the target rod 2 is a target head 2-1 which can hold a target piece 3.
Before target loading, the initial positions of the components are shown in figure 3, and the target rod 2 is aligned with the target disk openings 1-5 of the target disk 1; at this time, the target plate 1 rotates around the position of the shaft hole 1-4 of the target plate, as shown in figure 4, so that the target chamber 1-2 of the target plate with the target sheet 3 is aligned with the target rod head clamping mechanism 2-1 of the target rod 2; the target rod 2 moves towards the target disk 1, as shown in fig. 5, the target disk 1 is propped against, the tail part of the target sheet 3 is inserted into the target rod head clamping mechanism 2-1, and then the target rod head clamping mechanism 2-1 clamps the tail part of the target sheet 3; the target rod 2 moves reversely in the linear direction and leaves the target disk 1, as shown in fig. 6, the target rod 2 can pull out the target sheet 3 from the target disk target bin 1-2 and is arranged at the front end of the target rod 2, and the target loading action is completed.
When the target rod works, the target disk 1 rotates around the position of the shaft hole 1-4 of the target disk, as shown in fig. 7, the opening 1-5 of the target disk 1 is aligned with the position of the target rod 2; the target 2 can be moved forward over the target plate 1, as shown in fig. 8, into the operative position.
Before the target is removed, when the target sheet 3 at the front end of the target rod 2 needs to be replaced, the target rod 2 moves to the position shown in FIG. 9, so that the target removing structure 1-3 is aligned with the target sheet 3 and the notch position of the target rod clamping mechanism 2-1 at the front end of the target rod; the target disk 1 rotates, as shown in fig. 10, the target removing structure 1-3 is driven to be inserted into the notch of the target piece 3 and the target rod clamping mechanism 2-1 at the front end of the target rod 2; subsequently, the target bar 2 with the target 3 moves backward, and the target 3 is caught by the structure for target removal 1-3, as shown in FIG. 11, thereby completing the target removal.
The method of the present invention is not limited to the examples described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, and also belong to the technical innovation scope of the present invention.
Claims (8)
1. An automatic target changing device used in vacuum of a cyclotron is characterized in that: this automatic trade target device includes: the device comprises a target disc main body (1-1) arranged in the vacuum of a cyclotron, a target removing structure (1-3) arranged on the target disc main body, a target rod (2) used for extending into the cyclotron along a target disc opening (1-5) of the target disc main body to perform charge stripping telescopic motion, a target sheet (3) arranged at the head of the target rod (2) and a corresponding control mechanism; the target disc main body (1-1) is a rotatable target disc main body (1-1), and target disc target bins (1-2) for storing target pieces (3) are uniformly distributed on the side end surface of the rotatable target disc main body (1-1); the control mechanism controls the target disc main body (1-1), the target rod (2) and the target removing mechanism (1-3) to be matched and move relatively to finish automatic target loading and automatic target removing, so that automatic target changing is realized.
2. The apparatus of claim 1, wherein the target changer comprises: the target rod (2) is provided with a clamping device (2-1) at the head part of the target rod (2) and a rod part (2-2) of the target rod; the target rod head clamping device (2-1) comprises an adjusting nut (2-1-1) and a fork head (2-1-2); a protective side (2-1-3), a top sheet (2-1-4), a spring (2-1-5) and a top bead (2-1-6); the adjusting nut (2-1-1) is used for adjusting the pressure of the spring (2-1-5) on the top bead (2-1-6), the fork head (2-1-2) is used for clamping the upper surface and the lower surface of the tail part of the target sheet (3), and the protecting side (2-1-3) is used for clamping the left side and the right side of the tail part of the target sheet (3); the installation angle of the adjusting nut (2-1-1) is parallel to the opening direction of the target removing structure (1-3) and is installed at the position of the target head (2) which is at the same side of the opening direction of the target removing structure (1-3).
3. The apparatus of claim 1, wherein the target changer comprises: the target sheet (3) is provided with a target frame (3-1), a stripping film (3-2), a positioning hole (3-3) and a target sheet tail part (3-4), the positioning hole (3-3) is arranged at the tail part of the target sheet, the shape and the size of the positioning hole (3-3) are matched with the target rod ejecting bead (2-1-6), and when the tail part of the target sheet (3) is inserted into the fork head (2-1-2) and the protecting side (2-1-3) of the target rod, the ejecting bead (2-1-6) of the target rod is pressed into the positioning hole (3-3) of the target sheet under the pressure of a spring, so that the target sheet is positioned on the target rod.
4. The apparatus of claim 1, wherein the target changer comprises: the target bin (1-2) of the target disc is provided with an adjusting nut (1-2-1) and a spring (1-2-2); a top block (1-2-3) and a top bead (1-2-4); the outer circumferential surface of the adjusting nut (1-2-1) is provided with an external thread which can be screwed into a corresponding threaded hole of the target disc main body (1-1), and the pressing spring (1-2-2) presses the top bead (1-2-4) against the side surface of the target sheet (3) through the top block (1-2-3), so that the target sheet (3) is lightly pressed in a target bin of the target disc, and the target sheet (3) is prevented from shaking in the target bin (1-2) when the target disc rotates.
5. The apparatus of claim 1, wherein the target changer comprises: the target removing mechanism (1-3) is arranged on one side of the target disc opening (1-5), the target removing mechanism (1-3) is provided with a semicircular opening, the direction of the semicircular opening is consistent with the rotating direction of the target disc main body (1-1) during target removing, and the size of the semicircular opening is matched with the size of the target rod head clamping mechanism (2-1).
6. An automatic target changing method in a cyclotron vacuum for an automatic target changing device in a cyclotron vacuum based on any one of claims 1 to 5, characterized in that: the automatic target changing method comprises the following steps:
step one, when the target is loaded, the control mechanism controls the target disc main body (1-1) and the target rod (2) to respectively rotate to stations which are matched with each other when the target is loaded, so that the target loading process is completed;
and step two, when the target is removed, the control mechanism controls the target disc main body (1) and the target rod (2) to respectively rotate to the stations which are matched with each other when the target is removed, so that the target removing process is completed.
7. The method of claim 6, wherein the target is automatically changed in vacuum of the cyclotron, and the method comprises: the target loading process of the first step specifically comprises the following steps:
1) the control mechanism controls the target disc main body (1-1) to rotate along the position of a target disc shaft hole (1-4) of the control mechanism, so that the position of the target disc main body (1-1) at the current target disc target bin (1-2) is over against the opening of the clamping mechanism (2-1) at the front end of the target rod;
2) the control mechanism controls the target rod (2) to move towards the target disc main body (1-1) so that the clamping mechanism (2-1) at the front end of the target rod (2) abuts against and locks a target handle at the tail part of a target sheet on the target bin (1-2) of the current target disc;
3) the control mechanism controls the target rod (2) to move back and drive the target handle at the tail part of the current target sheet (3), and the target sheet (3) corresponding to the handle is taken out, so that the target sheet (3) is installed on the target rod (1), and the target loading process is completed.
8. The method of claim 6, wherein the target is automatically changed in vacuum of the cyclotron, and the method comprises: the second step of the target removing process comprises the following specific steps:
1) the control mechanism controls the target disc main body (1-1) to rotate, so that the target removing structure (1-3) on the target disc main body (1-1) enters a target removing station;
2) the control mechanism moves the target rod (2) provided with the target sheet (3) to a target removal preparation position;
3) the control mechanism controls the target removing mechanism (1-3) to continue rotating from the target removing station to a position where the target rod front end clamping mechanism (2-1) can be locked;
4) the control mechanism controls the target rod (2) to move backwards, and the target removing structure (1-3) clamps the target sheet (3) out of the target rod head clamping mechanism (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211453.5A CN113966065B (en) | 2021-10-18 | 2021-10-18 | Automatic target changing device and method used in vacuum of cyclotron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211453.5A CN113966065B (en) | 2021-10-18 | 2021-10-18 | Automatic target changing device and method used in vacuum of cyclotron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113966065A true CN113966065A (en) | 2022-01-21 |
| CN113966065B CN113966065B (en) | 2022-08-19 |
Family
ID=79464265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111211453.5A Active CN113966065B (en) | 2021-10-18 | 2021-10-18 | Automatic target changing device and method used in vacuum of cyclotron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113966065B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117119667A (en) * | 2023-09-16 | 2023-11-24 | 北京核力同创科技有限公司 | Cyclotron target stripping device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170004898A1 (en) * | 2015-06-30 | 2017-01-05 | General Electric Company | Production assemblies and removable target assemblies for isotope production |
| CN206901309U (en) * | 2017-03-29 | 2018-01-19 | 中国科学院西安光学精密机械研究所 | The protective glass apparatus for automatic change of laser fusion target field optics diagnostic device |
| CN108811295A (en) * | 2018-07-04 | 2018-11-13 | 中国原子能科学研究院 | Rotary used in a kind of cyclotron changes target drone structure |
| CN108882496A (en) * | 2018-06-28 | 2018-11-23 | 中国原子能科学研究院 | For the positioning system and its localization method for changing target drone structure of accelerator |
| CN111734811A (en) * | 2020-07-01 | 2020-10-02 | 卢方君 | Sprocket with stable transmission |
| CN113163571A (en) * | 2021-04-22 | 2021-07-23 | 中国科学院近代物理研究所 | Device for stripping and injecting heavy ion synchrotron |
-
2021
- 2021-10-18 CN CN202111211453.5A patent/CN113966065B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170004898A1 (en) * | 2015-06-30 | 2017-01-05 | General Electric Company | Production assemblies and removable target assemblies for isotope production |
| CN206901309U (en) * | 2017-03-29 | 2018-01-19 | 中国科学院西安光学精密机械研究所 | The protective glass apparatus for automatic change of laser fusion target field optics diagnostic device |
| CN108882496A (en) * | 2018-06-28 | 2018-11-23 | 中国原子能科学研究院 | For the positioning system and its localization method for changing target drone structure of accelerator |
| CN108811295A (en) * | 2018-07-04 | 2018-11-13 | 中国原子能科学研究院 | Rotary used in a kind of cyclotron changes target drone structure |
| CN111734811A (en) * | 2020-07-01 | 2020-10-02 | 卢方君 | Sprocket with stable transmission |
| CN113163571A (en) * | 2021-04-22 | 2021-07-23 | 中国科学院近代物理研究所 | Device for stripping and injecting heavy ion synchrotron |
Non-Patent Citations (1)
| Title |
|---|
| 解怀东，安世忠，管锋平: "CYCIAE-100 剥离靶换靶机的研制", 《中国原子能科学研究院年报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117119667A (en) * | 2023-09-16 | 2023-11-24 | 北京核力同创科技有限公司 | Cyclotron target stripping device and method |
| CN117119667B (en) * | 2023-09-16 | 2024-03-12 | 北京核力同创科技有限公司 | Cyclotron target stripping device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113966065B (en) | 2022-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113966065B (en) | Automatic target changing device and method used in vacuum of cyclotron | |
| JPS6134939B2 (en) | ||
| US5901624A (en) | Workpiece transfer apparatus | |
| US4060937A (en) | Grinder for glass plates or the like | |
| US5112467A (en) | Cathode sputtering apparatus | |
| CN1152399C (en) | Mechanism for operating three position switch e. g. off/star/delta | |
| US4187748A (en) | Automatic machine tool | |
| US6080045A (en) | Machining methods and apparatus | |
| EP3772162B1 (en) | E-machine component mandrel transfer system | |
| JPH0126813B2 (en) | ||
| CN217749725U (en) | Continuous feeding device for screw rolling | |
| US2819816A (en) | Device for feeding work pieces | |
| CN211681109U (en) | Automatic loading and unloading device for parts | |
| US2973532A (en) | Automatic loading and unloading mechanism | |
| US3881886A (en) | Grinding machines and loading mechanism therefor | |
| CN101767297A (en) | Anti-inversion feeding device for conical roller centerless grinding machine and use method thereof | |
| DE2355375A1 (en) | Grinding machine with magnetic quick loading mechanism - for small rings e.g. ball bearing inner cages | |
| CN111055150A (en) | Automatic loading and unloading device for parts and using method | |
| CN109780023B (en) | Laminating device | |
| US3455567A (en) | Automated gear chuck | |
| US3596340A (en) | Component assembly apparatus | |
| CN218110461U (en) | Tantalum target material sand blasting unit | |
| CN217677663U (en) | A integral type equipment for little spring is thrown ball and is reinforceed | |
| CN217194686U (en) | Automatic processing device | |
| CN214685645U (en) | A accurate full-automatic equipment of polishing for padlock body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |