CN106927257B - Automatic protective glass replacing device of laser fusion target field optical diagnosis equipment - Google Patents
Automatic protective glass replacing device of laser fusion target field optical diagnosis equipment Download PDFInfo
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- CN106927257B CN106927257B CN201710197425.XA CN201710197425A CN106927257B CN 106927257 B CN106927257 B CN 106927257B CN 201710197425 A CN201710197425 A CN 201710197425A CN 106927257 B CN106927257 B CN 106927257B
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- glass
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- base frame
- protective glass
- laser fusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
- B65G49/063—Transporting devices for sheet glass
- B65G49/066—Transporting devices for sheet glass being suspended; Suspending devices, e.g. clamps, supporting tongs
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/25—Maintenance, e.g. repair or remote inspection
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- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
In order to improve the replacement speed of the protective glass, the invention provides an automatic protective glass replacement device of laser fusion target range optical diagnosis equipment, which comprises an installation base frame, a first chain transmission mechanism, a driving motor and a protective plate, wherein the installation base frame is provided with a first chain transmission mechanism; the mounting base frame can be sleeved outside a front-end lens of the optical diagnostic equipment; the first chain transmission mechanism comprises a plurality of first chain wheels fixedly arranged on the upper end surface of the mounting base frame and a first conveying chain wound outside the first chain wheels; the first conveying chain is integrally polygonal, a plurality of first hanging seats are arranged on the first conveying chain, and a protective glass assembly is hung and mounted on each first hanging seat; the plurality of protective glass components are distributed at intervals and are positioned on the outer side of the mounting base frame; the driving motor is arranged on the mounting base frame and used for driving one of the first chain wheels to rotate; the protection plate is fixedly arranged on the installation base frame and used for protecting the spare glass assembly. The invention can automatically replace the protective glass without affecting the vacuum of the target chamber, thereby improving the maintenance speed of the optical diagnosis equipment.
Description
Technical Field
The invention relates to an automatic mechanical device, in particular to an automatic protective glass replacing device applied to optical diagnostic equipment of a laser fusion target field.
Background
Laser nuclear fusion is a commonly used artificial controllable nuclear fusion at present, has very important research significance in civilian use and military use, and is highly valued by the nuclear major countries in the world. Since the second half of the 20 th century, the 70 th generation of the high power laser drivers began to be developed in russian, american, japanese, french, chinese, english, and the like. The research in the united states is leading, and laser driving devices such as Shiva, nova, beamlet and Omage are established in sequence, and a super-large scale laser driving device "NIF" including 192 paths is formally established in 2009. China also establishes a series of laser driving devices (starlight series, magic light series and the like), and the largest domestic laser driving device 'magic light-III' which is built in 2015 comprises 48 paths of laser.
The difficulty of normal operation of such a large driving device is extremely high, and due to tens of thousands of parts, the operation of the system is affected when any one of the parts is broken down or damaged. Typically, a long time (perhaps months) is required to perform system maintenance in the middle of each experiment in a year. Therefore, how to improve the operation efficiency of the device when the equipment is in the optimum state is a very urgent problem. When the NIF device in the United states normally operates, 20 targets can be targeted every day; some domestic driving devices can only shoot 3-5 targets every day when in normal operation. Laser fusion is a very complex physical process, and a large amount of experimental research needs to be carried out to verify and perfect a theoretical model. To a great extent, the targeting efficiency directly influences the progress of laser fusion research in China.
There are many optical diagnostic devices in the laser fusion target field, which go deep into the vacuum target chamber, observe the fusion target pellet in close range, explore various physical mysteries in the target shooting process. However, optical components are susceptible to damage from target debris and are typically protected at the very front of the optical system by a radiation-resistant parallel flat glass window. After 1 experiment, the surface of the protective glass is generally subjected to scale damage, the light transmittance of the protective glass is greatly reduced, the normal use of optical diagnostic equipment is seriously influenced, and the vacuum must be opened to replace the protective glass. The target chamber is bulky and the evacuation and evacuation of the vacuum takes a significant amount of time.
Disclosure of Invention
In order to improve the replacement speed of the protective glass, the invention provides an automatic protective glass replacement device of optical diagnostic equipment of a laser fusion target field.
The technical scheme of the invention is as follows:
the automatic replacement device of the protective glass of the laser fusion target field optical diagnostic equipment is characterized in that:
the device comprises an installation base frame, a first chain transmission mechanism, a driving motor and a protection plate; the mounting base frame can be sleeved outside a front-end lens of the optical diagnostic equipment; the first chain transmission mechanism comprises a plurality of first chain wheels fixedly arranged on the upper end surface of the mounting base frame and a first conveying chain wound outside the plurality of first chain wheels;
the first conveying chain is integrally polygonal, a plurality of first hanging seats are arranged on the first conveying chain, and a protective glass assembly is hung and mounted on each first hanging seat; the plurality of protective glass components are distributed at intervals and are positioned on the outer side of the installation base frame;
the driving motor is arranged on the mounting base frame and is used for driving one of the first chain wheels to rotate;
the protection plate is fixedly arranged on the installation base frame and used for blocking fragments flying out of a front target point of the optical diagnosis equipment in the shooting process.
Based on the basic technical scheme, the invention also optimizes and/or defines the following steps:
in order to improve the conveying stability of the cover glass assembly, the automatic cover glass replacing device further comprises a second chain transmission mechanism and a driving connecting rod; the second chain transmission mechanism comprises a plurality of second chain wheels which are fixedly arranged on the lower end surface of the mounting base frame and matched with the first chain wheels, and a second conveying chain wound outside the plurality of second chain wheels; a plurality of second hanging seats matched with the first hanging seats and used for fixing the protective glass assembly are arranged on the second conveying chain; the driving connecting rod is vertically arranged, the upper part of the driving connecting rod is fixedly connected with one of the first chain wheels, and the lower part of the driving connecting rod is fixedly connected with one of the second chain wheels; the drive link is driven by the drive motor.
In order to reduce the conveying speed of the protective glass assembly and improve the controllability of the replacement of the protective glass assembly, the automatic protective glass replacement device further comprises a driving gear and a reduction gear; the driving gear is fixedly connected with the driving motor, the driving gear is meshed with the reduction gear, and the reduction gear is fixedly connected with the driving connecting rod.
When the first conveying chain is wholly quadrangular, the whole device is smallest in size and most compact in structure, and the device is suitable for occasions with limited space.
Furthermore, the protective glass assembly comprises a glass sheet, a glass frame, a glass pressing plate and a bottom frame; the glass sheet is fixed in the glass frame through the glass pressing plate; the glass frame and the bottom frame are respectively provided with a limiting fixing device which is matched with the limiting fixing device; two fixing holes are formed in the end face of the bottom frame; the two fixing holes are respectively matched with the first hanging seat and the second hanging seat.
Furthermore, the limit fixing device can comprise two clamping rods and two grabbing bosses which are arranged on the side wall of the glass frame, and two sections of slots which are arranged on the bottom frame; the two sections of slots are arranged along the circumferential direction of the bottom frame and are symmetrical relative to the center of the bottom frame, and one end part/two end parts of each slot form a limit area with the bottom frame; a threaded lock pin with a ball spring is arranged at the limiting area; when the grabbing lug boss is installed, the grabbing lug boss is arranged in the open slot and rotates, the clamping rod collides with the threaded lock pin to extrude and retract the ball, and after the clamping rod is extruded into the limiting area, the ball pops out to limit the clamping rod in the limiting area.
The mounting base frame is composed of two substrates arranged in parallel.
The plurality of protective glass components are distributed at equal intervals, and the intervals are required to be large enough, so that when one protective glass component is positioned right in front of the front-end lens of the optical system, the rest protective glass components are completely positioned on the side surface of the front-end lens of the optical system.
The driving motor is a stepping motor.
The first chain transmission may be replaced by a first belt transmission.
The second chain drive described above may be replaced by a second belt drive.
The invention has the beneficial effects that:
1. when the protective glass positioned in front of the front lens is damaged, the polygonal conveying chain automatically conveys the spare protective glass component to the front of the front lens under the driving of the driving motor and the driving gear and simultaneously conveys the damaged protective glass component to the other side of the front lens.
2. According to the invention, each protective glass component is fixed on the upper polygonal conveying chain and the lower polygonal conveying chain through the two suspension seats which are arranged up and down, so that the protective glass is more stably conveyed when the protective glass component is automatically replaced.
3. The upper conveying chain and the lower conveying chain adopt quadrilateral conveying chains, so that the volume of the automatic protective glass replacing device is reduced to the minimum, the occupied volume in the target chamber is minimum, and the installation and use of other equipment in the target chamber are not influenced.
4. The assembly process of the cover glass assembly of the present invention is: the glass sheet is fixed in the glass frame through the glass pressing plate, and the whole glass sheet is limited on the bottom frame through the limiting fixing device. Therefore, after all glass sheets of the protective glass assembly are damaged, the glass frame is detached from the bottom frame quickly, and the glass frame with the glass sheets is mounted on the bottom frame after the glass sheets are replaced, so that the replacement is convenient.
5. The invention limits the clamping rod on the glass frame in the limiting area on the bottom frame through the threaded lock pin with the ball spring, and the glass frame can be installed or removed only by rotating the glass frame, so that the glass frame is more convenient to replace.
6. The invention can also be applied to other occasions needing automatic replacement of the protective glass.
Drawings
FIG. 1 is a schematic structural diagram (in use) of an embodiment of the present invention;
FIG. 2 is a schematic structural view (in use) of the automatic cover glass replacing apparatus shown in FIG. 1 from another angle;
FIG. 3 is a schematic view of the cover glass assembly of the present invention;
the reference numbers in the figures: 1-optical diagnostic device body cartridge (partially cut-away view); 2-front lens of optical diagnostic equipment; 3-a substrate; 4-a first sprocket; 5-a first conveyor chain; 6-a first suspension seat; 7-a drive gear; 8-reduction gear; 9-driving a motor; 10-a second sprocket; 11-a second conveyor chain; 12-a second suspension mount; 13-a cover glass assembly; 14-protective plate; 15-substrate mounting holes; 16-a drive link; 17-a glass sheet; 18-a glass frame; 19-a glass platen; 20-a position clamping rod; 21-grabbing a boss; 22-bottom frame; 23-slotting; 24-threaded locking pin; 25-a limiting region; 26-fixing hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 and 2 show an embodiment of the automatic cover glass replacing apparatus according to the present invention, in which a base plate 3 is fixed to each of the left and right sides of a front lens 2 of an optical diagnostic device (a plurality of base plate mounting holes are formed in the side surface of the base plate 3 to fix the base plate in a target chamber) to form a mounting base frame, a first sprocket 4 is mounted to each of four corners of an upper end surface of the base plate 3, a second sprocket 10 is mounted to each of four corners of a lower end surface of the base plate 3, and the four second sprockets 10 are respectively located right below the four first sprockets 4. A first conveying chain 5 is wound around four first chain wheels 4 on the upper end face of the base plate 3 to form a quadrilateral conveying mechanism, and a second conveying chain 11 is wound around four second chain wheels 10 on the lower end face of the base plate 3 to form the quadrilateral conveying mechanism.
The first conveying chain 5 is riveted with a plurality of first hanging seats 6, and the second conveying chain 11 is riveted with a plurality of second hanging seats 12 matched with the second hanging seats 6.
Three cover glass assemblies 13 are fixed to the first conveyor chain 5 and the second conveyor chain 11 by the first suspension base 6 and the second suspension base 12, respectively, which are matched, and the three cover glass assemblies 13 are arranged at equal intervals. When the protective glass assembly is used, one protective glass assembly is positioned right in front of the front-end lens 2 of the optical diagnostic equipment to play a role in protection, the other two protective glass assemblies are positioned at the same side of the front-end lens 2 of the optical diagnostic equipment to be used as a standby, and the other side of the front-end lens 2 of the optical diagnostic equipment can be used for storing damaged protective glass assemblies.
At one corner of the first conveyor chain 5, the first sprocket at that corner, the second sprocket directly below that corner and the reduction gear 8 are integrally connected by a drive link 16, and the tooth tips of the two sprockets are ensured to face in the same direction.
The driving motor 9 is fixedly connected with the driving gear 7, the driving gear 7 drives the reduction gear 8 to rotate, and the reduction gear 8 drives the upper conveying chain and the lower conveying chain to synchronously move through the driving connecting rod 16. In order to realize the accurate replacement of the protective glass assembly, the driving motor adopts a stepping motor, and the rotation amount of the chain can be accurately controlled by accurately controlling the stepping amount of the motor.
The stored cover glass assembly is protected by a protective shield 14 which blocks debris flying from a target point in front of the optical diagnostic apparatus during the target practice.
The working process of the invention is as follows: the remote control driving motor 9 rotates, the reduction gear 8 is driven to rotate by the driving gear 7, the reduction gear 8 drives the driving connecting rod 16 to rotate, the driving connecting rod 16 drives the upper chain wheel and the lower chain wheel which are fixedly connected with the driving connecting rod to rotate, the two chain wheels synchronously drive the first transmission chain 5 and the second transmission chain 11 to rotate at the same time, so that the damaged protective glass component is moved to the other side of the front-end lens, and a new protective glass component is conveyed to be arranged right in front of the front-end lens at the same time or continuously, and the replacement of the protective glass is finished. It should be noted here that the chain drive can be replaced by a belt drive in the present invention, that is, the first and second conveyor chains 5 and 11 are both replaced by conveyor belts, and correspondingly, the first and second chain wheels 4 and 10 are both replaced by belt wheels; the transmission path after replacement is as follows: drive motor 9 → drive gear 7 → reduction gear 8 → drive link 16 → upper and lower pulleys → upper and lower belts.
In order to improve the replacement efficiency, a preferred embodiment of the cover glass assembly is shown in this embodiment, which comprises a glass sheet 17, a glass frame 18, a glass pressing plate 19 and a bottom frame 22, as shown in fig. 3; two fixing holes 26 are arranged on the end surface of the bottom frame 22, and are respectively matched with the first hanging seat 6 and the second hanging seat 12; the glass sheet 17 is fixed in the glass frame 18 through a glass pressing plate 19; the glass frame 18 and the bottom frame 18 are respectively provided with a limit fixing device which is matched with each other, for example, the two can be matched and connected through screw threads, or can be connected through a buckle or other common limit connection modes; fig. 3 shows a specific embodiment of the position limiting fixing device, which comprises two position clamping rods 20 and two grabbing bosses 21 arranged on the side walls of the glass frame, and two sections of slots 23 arranged on a bottom frame 22; the two sections of the slots 23 are arranged along the circumferential direction of the bottom frame 22 and are symmetrical relative to the center of the bottom frame 22, and one end part of each slot 23 and the bottom frame form a limiting area 25; and a threaded lock pin 24 with a ball spring is arranged at the limiting area 25.
When the glass sheet 17 is installed, firstly, the glass sheet 17 is installed in the glass frame 18 and is fixed by the glass pressing plate 19, then the grabbing boss 21 of the glass frame 18 is placed in the slot 23 of the bottom frame 22 and rotates clockwise, the clamping rod 20 collides with the threaded lock pin 24 to extrude and retract the balls, and after the clamping rod 20 is extruded into the limiting area 25, the balls are popped up to limit the clamping rod 20 in the limiting area 25, so that the fixation is realized. In case the whole damages of glass piece among the automatic more device of protection glass, when needing the manual work to change, only need to revolve out the glass that damages even frame, will take the new glass screw in underframe of glass frame can, it is very convenient to change.
Claims (10)
1. Automatic device of changing of protection glass of laser fusion target field optical diagnostic equipment, its characterized in that:
the device comprises an installation base frame, a first chain transmission mechanism, a driving motor and a protection plate; the mounting base frame can be sleeved outside a front-end lens of the optical diagnostic equipment; the first chain transmission mechanism comprises a plurality of first chain wheels fixedly arranged on the upper end surface of the mounting base frame and a first conveying chain wound outside the plurality of first chain wheels;
the first conveying chain is integrally polygonal, a plurality of first hanging seats are arranged on the first conveying chain, and a protective glass assembly is hung and mounted on each first hanging seat; the plurality of protective glass components are distributed at intervals and positioned on the outer side of the mounting base frame;
the driving motor is arranged on the mounting base frame and is used for driving one of the first chain wheels to rotate;
the protection plate is fixedly arranged on the mounting base frame and used for blocking fragments flying out of a front target point of the optical diagnosis equipment in the shooting process.
2. An automatic cover glass replacing device for laser fusion target field optical diagnostic equipment as claimed in claim 1, characterized in that: the chain transmission mechanism also comprises a second chain transmission mechanism and a driving connecting rod;
the second chain transmission mechanism comprises a plurality of second chain wheels which are fixedly arranged on the lower end surface of the mounting base frame and matched with the first chain wheels, and a second conveying chain wound outside the plurality of second chain wheels; a plurality of second hanging seats matched with the first hanging seats and used for fixing the protective glass assembly are arranged on the second conveying chain;
the driving connecting rod is vertically arranged, the upper part of the driving connecting rod is fixedly connected with one of the first chain wheels, and the lower part of the driving connecting rod is fixedly connected with one of the second chain wheels;
the drive link is driven by the drive motor.
3. The automatic replacement device for the cover glass of the laser fusion target field optical diagnostic device of claim 2, characterized in that: the device also comprises a driving gear and a reduction gear; the driving gear is fixedly connected with the driving motor, the driving gear is meshed with the reduction gear, and the reduction gear is fixedly connected with the driving connecting rod.
4. The automatic replacement device of the cover glass of the laser fusion target field optical diagnostic device of claim 2 or 3, characterized in that: the first conveying chain is wholly quadrangular.
5. The automatic replacement device of the cover glass of the laser fusion target field optical diagnostic device of claim 4, characterized in that: the protective glass component comprises a glass sheet, a glass frame, a glass pressing plate and a bottom frame; the glass sheet is fixed in the glass frame through the glass pressing plate; the glass frame and the bottom frame are respectively provided with a limiting fixing device which is matched with the limiting fixing device; two fixing holes are formed in the end face of the bottom frame; the two fixing holes are respectively matched with the first hanging seat and the second hanging seat.
6. The automatic replacement device of the cover glass of the laser fusion target field optical diagnostic device of claim 5, characterized in that: the limiting and fixing device comprises two clamping rods and two grabbing bosses which are arranged on the side wall of the glass frame, and two sections of slots which are arranged on the bottom frame; the two sections of slots are arranged along the circumferential direction of the bottom frame and are symmetrical relative to the center of the bottom frame, and one end part/two end parts of each slot form a limit area with the bottom frame; a threaded lock pin with a ball spring is arranged at the limiting area; when the grabbing device is installed, the grabbing lug boss is arranged in the open slot and rotates, the clamping rod collides with the threaded lock pin to enable the ball to be extruded and retracted, and after the clamping rod is extruded into the limiting area, the ball pops out to enable the clamping rod to be limited in the limiting area.
7. The automatic replacement device of the cover glass of the laser fusion target field optical diagnostic device of claim 4, characterized in that: the mounting base frame is composed of two substrates arranged in parallel.
8. The automatic replacement device of the protective glass of the laser fusion target field optical diagnostic device of claim 1, characterized in that: the plurality of cover glass assemblies are equally spaced apart.
9. The automatic replacement device of the protective glass of the laser fusion target field optical diagnostic device of claim 1, characterized in that: the driving motor is a stepping motor.
10. The automatic replacement device of the protective glass of the laser fusion target field optical diagnostic device of claim 1, characterized in that: the first chain drive is replaced with a first belt drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197425.XA CN106927257B (en) | 2017-03-29 | 2017-03-29 | Automatic protective glass replacing device of laser fusion target field optical diagnosis equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197425.XA CN106927257B (en) | 2017-03-29 | 2017-03-29 | Automatic protective glass replacing device of laser fusion target field optical diagnosis equipment |
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| CN106927257A CN106927257A (en) | 2017-07-07 |
| CN106927257B true CN106927257B (en) | 2023-04-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979638B (en) * | 2017-12-27 | 2020-10-23 | 核工业西南物理研究院 | Vacuum target changing mechanism |
| CN111308730A (en) * | 2018-12-11 | 2020-06-19 | 核工业西南物理研究院 | Electric control movable diaphragm for pollution protection of glass window of fusion device |
| CN111768880B (en) * | 2020-06-24 | 2023-08-29 | 同济大学 | A piece protector for plasma X-ray diagnosis |
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