CN108492903B - Interchangeable neutron pipe's exchange system - Google Patents
Interchangeable neutron pipe's exchange system Download PDFInfo
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- CN108492903B CN108492903B CN201810345550.5A CN201810345550A CN108492903B CN 108492903 B CN108492903 B CN 108492903B CN 201810345550 A CN201810345550 A CN 201810345550A CN 108492903 B CN108492903 B CN 108492903B
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- G21G4/02—Neutron sources
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Abstract
The invention discloses an interchange system of switchable neutron catheters, which comprises a fixed mounting frame and a vacuum cavity shell, wherein the fixed mounting frame comprises a fixed mounting frame body and fixed mounting support legs, the vacuum cavity shell comprises a vacuum cavity lower bottom plate, a vacuum cavity upper top plate, a vacuum cavity left side plate, a vacuum cavity right side plate, a vacuum cavity front end flange and a vacuum cavity rear end flange, a left side movable support and a right side movable support are arranged in a vacuum cavity of the vacuum cavity shell, a guide rail is screwed on the upper surface of the vacuum cavity lower bottom plate, and sliding blocks are respectively screwed on the left side movable support and the right side movable support corresponding; a left neutron guide pipe is arranged right above a left movable support in the vacuum chamber, the left movable support is provided with the left neutron guide pipe through two left adjusting mounting frames, and the right movable support is provided with the right neutron guide pipe through two right adjusting mounting frames. The invention has the advantages of novel structural design and high automation degree, and can effectively realize the interchange of neutron guide tubes with different cross-sectional areas.
Description
Technical Field
The invention relates to the technical field of spallation neutron sources, in particular to an interchange system of switchable neutron conduits.
Background
The method comprises the steps of utilizing a spallation neutron source to generate neutrons with high energy, transmitting the neutrons with high energy to a multi-physical spectrometer through a neutron guide pipe, and then carrying out a series of physical experiments. Wherein, the neutron transmission can have the loss of energy in neutron pipe in order to prevent the radiation, and neutron pipe transmission neutron that will maximize reduces the loss of energy in the transfer process, and neutron pipe is inside through incessant with neutron reflection, transmission, finally makes the neutron transmit and tests on many physics spectrometer.
Neutron guides are essential in the engineering of the whole multi-physical spectrometer; many physical spectrometers require neutrons to be extracted from the target station to the sample environment of the spectrometer for a variety of experiments with the neutrons. In the using process of the neutron guide tube, the neutron guide tube and the neutron collimating pipeline at the corresponding positions are accurately collimated and exchanged, two working modes of high flux and high resolution are provided for a spectrometer, the guide tubes with different cross-sectional areas can be switched at will by the exchange system, and therefore the high-flux neutron guide tube and the low-flux neutron guide tube are switched to meet the experimental requirements.
It should be noted that the ambient environment of the spectrometer is full of certain neutron radiation, which has certain influence on field debugging workers, so that a neutron guide tube capable of being electrically controlled, adjusted and switched to different cross-sectional areas needs to be provided, and the neutron guide tube is required to have certain collimation and coaxiality, so that the neutron guide tube can reduce the loss of neutrons under the function of changing the flow.
Disclosure of Invention
The invention aims to provide an interchange system of a switchable neutron guide tube, which has novel structural design and high automation degree and can effectively realize interchange of neutron guide tubes with different cross-sectional areas.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A switchable neutron catheter interchange system comprises a fixed mounting frame and a vacuum cavity shell arranged on the upper end side of the fixed mounting frame, wherein the fixed mounting frame comprises a fixed mounting frame body which is rectangular in full-surrounding shape and horizontally and transversely arranged, four fixed mounting support legs which are rectangular in distribution and vertically arranged respectively are arranged on the lower end side of the fixed mounting frame body, and the upper end parts of the fixed mounting support legs are connected with the fixed mounting frame body respectively;
the vacuum cavity shell comprises a vacuum cavity lower bottom plate, a vacuum cavity upper top plate, a vacuum cavity left side plate and a vacuum cavity right side plate, wherein the vacuum cavity lower bottom plate, the vacuum cavity upper top plate, the vacuum cavity left side plate and the vacuum cavity right side plate are horizontally and transversely arranged respectively; the front end part of the vacuum cavity shell is provided with a vacuum cavity front end flange which is vertically arranged and is respectively in threaded connection with the vacuum cavity lower bottom plate, the vacuum cavity upper top plate, the vacuum cavity left side plate and the vacuum cavity right side plate, and the rear end part of the vacuum cavity shell is provided with a vacuum cavity rear end flange which is vertically arranged and is respectively in threaded connection with the vacuum cavity lower bottom plate, the vacuum cavity upper top plate, the vacuum cavity left side plate and the vacuum cavity right side plate; a vacuum chamber which is formed by enclosing a lower vacuum chamber bottom plate, an upper vacuum chamber top plate, a left vacuum chamber side plate and a right vacuum chamber side plate together and is filled with helium gas during working is formed inside the vacuum chamber shell, and the lower vacuum chamber bottom plate of the vacuum chamber shell is screwed on the upper surface of the fixed mounting frame body;
a left movable support and a right movable support which horizontally extend along the front-rear direction are movably arranged in the vacuum cavity of the vacuum cavity shell in a left-right mode relatively, the left movable support is positioned on the left end side of the right movable support, the left movable support and the right movable support are arranged at intervals, a guide rail which is positioned in the vacuum cavity and horizontally extends along the left-right direction is screwed on the upper surface of a lower bottom plate of the vacuum cavity, sliding blocks are screwed on the corresponding guide rails of the left movable support and the right movable support respectively, and the sliding blocks are matched with the guide rail respectively; a left neutron guide pipe extending along the front-back direction is arranged in the vacuum chamber right above the left movable support, the left neutron guide pipe and the left movable support are arranged at intervals, two left adjusting mounting frames arranged at intervals front-back are screwed on the left movable support corresponding to the left neutron guide pipe, and the left neutron guide pipe is arranged on the two left adjusting mounting frames; a right neutron guide pipe which extends along the front-back direction and has a cross section area different from that of the left neutron guide pipe is arranged right above the right movable support in the vacuum chamber, the right neutron guide pipe and the right movable support are arranged at intervals, two right adjusting mounting frames which are arranged at intervals in the front-back direction are screwed on the right movable support corresponding to the right neutron guide pipe, and the right neutron guide pipe is arranged on the two right adjusting mounting frames;
the outer surface of the left side plate of the vacuum cavity is provided with a left flange pipe which transversely extends along the left-right direction in a screwed mode, the left end part of the left flange pipe is provided with a left driving air cylinder which horizontally moves left and right in a screwed mode, the extending end part of a piston rod of the left driving air cylinder sequentially penetrates through a center hole of the left flange pipe and the left side plate of the vacuum cavity and extends into the vacuum cavity, the lower surface of the left movable support is provided with a left driving flange in a screwed mode, and the extending end part of the piston rod of the left driving air; the outer surface of the right side plate of the vacuum cavity is provided with a right side flange pipe which transversely extends along the left-right direction in a screwed mode, the right end portion of the right side flange pipe is provided with a right side driving air cylinder which horizontally moves left and right in a screwed mode, the extending end portion of a piston rod of the right side driving air cylinder sequentially penetrates through a center hole of the right side flange pipe and the right side plate of the vacuum cavity and extends into the vacuum cavity, the lower surface of the right side movable support is provided with a right side driving flange in a screwed mode, and the extending end portion of the piston.
The left side adjusting mounting frame and the right side adjusting mounting frame respectively comprise adjusting lower bottom plates horizontally extending along the left-right direction, adjusting left side plates vertically extending upwards are screwed at the left end parts of the adjusting lower bottom plates, adjusting right side plates vertically extending upwards are screwed at the right end parts of the adjusting lower bottom plates, the adjusting left side plates are right opposite to the adjusting right side plates and are arranged at intervals, adjusting upper top plates are screwed between the upper end parts of the adjusting left side plates and the upper end parts of the adjusting right side plates, and the adjusting lower bottom plates, the adjusting left side plates, the adjusting right side plates and the adjusting upper top plates are enclosed into adjusting mounting holes in a rectangular shape; the middle position of the lower adjusting bottom plate is provided with a lower adjusting threaded hole which is opened upwards, a lower adjusting screw is screwed in the lower adjusting threaded hole, and the upper end part of the lower adjusting screw extends to the upper end side of the bottom frame bottom plate; the left adjusting side plate is provided with a left adjusting threaded hole which is completely penetrated left and right, a left adjusting screw is screwed in the left adjusting threaded hole, and the threaded end part of the left adjusting screw extends to the left end side of the left adjusting side plate; the right adjusting side plate is provided with a right adjusting threaded hole which is completely penetrated left and right, a right adjusting screw is screwed in the right adjusting threaded hole, and the threaded end part of the right adjusting screw extends to the left end side of the right adjusting side plate; an upper end adjusting threaded hole which is completely penetrated up and down is formed in the middle position of the adjusting upper top plate, an upper end adjusting screw is screwed in the upper end adjusting threaded hole, and the threaded end part of the upper end adjusting screw extends to the lower end side of the adjusting upper top plate;
the adjusting lower bottom plate of the left adjusting mounting frame is screwed on the upper surface of the left movable support, the left neutron guide tube extends into the adjusting mounting hole of the left adjusting mounting frame, and the lower end adjusting screw, the left end adjusting screw, the right end adjusting screw and the upper end adjusting screw of the left adjusting mounting frame are respectively in contact with the corresponding side surfaces of the left neutron guide tube;
the adjusting lower bottom plate of the right adjusting mounting frame is screwed on the upper surface of the right movable support, the right neutron guide tube extends into the adjusting mounting hole of the right adjusting mounting frame, and the lower end adjusting screw, the left end adjusting screw, the right end adjusting screw and the upper end adjusting screw of the right adjusting mounting frame are respectively in contact with the corresponding side surface of the right neutron guide tube.
Elastic components are respectively arranged between the left movable support and the vacuum cavity shell and between the right movable support and the vacuum cavity shell, each elastic component comprises a guide pillar fixing block, a movable guide pillar which is screwed and fixedly arranged on the guide pillar fixing block and horizontally extends along the left and right directions, and a fixed stop block which is screwed and fixedly arranged on the upper surface of a lower bottom plate of the vacuum cavity, the fixed stop block is provided with a guide pillar mounting hole which completely penetrates through the left and right corresponding to the movable guide pillar, the movable guide pillar is embedded and inserted in the guide pillar mounting hole of the fixed stop block, and a compression spring sleeved on the periphery of the movable guide pillar is arranged between the guide pillar fixing block;
for the elastic component between the left movable bracket and the vacuum cavity shell, a guide pillar fixing block of the elastic component is screwed on the left movable bracket; for the elastic component between the right movable support and the vacuum cavity shell, a guide column fixing block of the elastic component is screwed on the right movable support.
The invention has the beneficial effects that: the invention relates to an interchange system of switchable neutron catheters, which comprises a fixed mounting frame and a vacuum cavity shell arranged on the upper end side of the fixed mounting frame, wherein the fixed mounting frame comprises a fixed mounting frame body which is rectangular in full-surrounding shape and horizontally and transversely arranged, four fixed mounting support legs which are rectangular in distribution and vertically arranged respectively are arranged on the lower end side of the fixed mounting frame body, and the upper end parts of the fixed mounting support legs are connected with the fixed mounting frame body respectively; the vacuum cavity shell comprises a vacuum cavity lower bottom plate, a vacuum cavity upper top plate, a vacuum cavity left side plate and a vacuum cavity right side plate, wherein the vacuum cavity lower bottom plate, the vacuum cavity upper top plate, the vacuum cavity left side plate and the vacuum cavity right side plate are horizontally and transversely arranged respectively; the front end part of the vacuum cavity shell is provided with a vacuum cavity front end flange which is vertically arranged and is respectively in threaded connection with the vacuum cavity lower bottom plate, the vacuum cavity upper top plate, the vacuum cavity left side plate and the vacuum cavity right side plate, and the rear end part of the vacuum cavity shell is provided with a vacuum cavity rear end flange which is vertically arranged and is respectively in threaded connection with the vacuum cavity lower bottom plate, the vacuum cavity upper top plate, the vacuum cavity left side plate and the vacuum cavity right side plate; a vacuum chamber which is formed by enclosing a lower vacuum chamber bottom plate, an upper vacuum chamber top plate, a left vacuum chamber side plate and a right vacuum chamber side plate together and is filled with helium gas during working is formed inside the vacuum chamber shell, and the lower vacuum chamber bottom plate of the vacuum chamber shell is screwed on the upper surface of the fixed mounting frame body; a left movable support and a right movable support which horizontally extend along the front-rear direction are movably arranged in the vacuum cavity of the vacuum cavity shell in a left-right mode relatively, the left movable support is positioned on the left end side of the right movable support, the left movable support and the right movable support are arranged at intervals, a guide rail which is positioned in the vacuum cavity and horizontally extends along the left-right direction is screwed on the upper surface of a lower bottom plate of the vacuum cavity, sliding blocks are screwed on the corresponding guide rails of the left movable support and the right movable support respectively, and the sliding blocks are matched with the guide rail respectively; a left neutron guide pipe extending along the front-back direction is arranged in the vacuum chamber right above the left movable support, the left neutron guide pipe and the left movable support are arranged at intervals, two left adjusting mounting frames arranged at intervals front-back are screwed on the left movable support corresponding to the left neutron guide pipe, and the left neutron guide pipe is arranged on the two left adjusting mounting frames; a right neutron guide pipe which extends along the front-back direction and has a cross section area different from that of the left neutron guide pipe is arranged right above the right movable support in the vacuum chamber, the right neutron guide pipe and the right movable support are arranged at intervals, two right adjusting mounting frames which are arranged at intervals in the front-back direction are screwed on the right movable support corresponding to the right neutron guide pipe, and the right neutron guide pipe is arranged on the two right adjusting mounting frames; the outer surface of the left side plate of the vacuum cavity is provided with a left flange pipe which transversely extends along the left-right direction in a screwed mode, the left end part of the left flange pipe is provided with a left driving air cylinder which horizontally moves left and right in a screwed mode, the extending end part of a piston rod of the left driving air cylinder sequentially penetrates through a center hole of the left flange pipe and the left side plate of the vacuum cavity and extends into the vacuum cavity, the lower surface of the left movable support is provided with a left driving flange in a screwed mode, and the extending end part of the piston rod of the left driving air; the outer surface of the right side plate of the vacuum cavity is provided with a right side flange pipe which transversely extends along the left-right direction in a screwed mode, the right end portion of the right side flange pipe is provided with a right side driving air cylinder which horizontally moves left and right in a screwed mode, the extending end portion of a piston rod of the right side driving air cylinder sequentially penetrates through a center hole of the right side flange pipe and the right side plate of the vacuum cavity and extends into the vacuum cavity, the lower surface of the right side movable support is provided with a right side driving flange in a screwed mode, and the extending end portion of the piston. Through the structural design, the neutron guide tube interchange device has the advantages of novel structural design and high automation degree, and can effectively realize neutron guide tube interchange with different cross-sectional areas.
Drawings
The invention will be further described with reference to the drawings to which, however, the embodiments shown in the drawings do not constitute any limitation.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of another embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of the present invention.
FIG. 4 is a schematic structural view of a neutron conduit assembly of the present invention.
FIG. 5 is a schematic view of another perspective of a neutron tube assembly of the present invention.
Fig. 6 is a schematic structural view of the left or right adjustment mounts of the present invention.
Fig. 1 to 6 include:
1-fixed mounting rack 11-fixed mounting frame body
12-fixed mounting leg 2-vacuum chamber shell
21-vacuum chamber lower bottom plate 22-vacuum chamber upper top plate
23-vacuum chamber left side plate 24-vacuum chamber right side plate
25-vacuum cavity front end flange 26-vacuum cavity rear end flange
27 vacuum chamber 31 left side movable support
32-Right side Movable support 41-guide track
42-slide block 51-left neutron guide tube
52-Right neutron guide tube 61-left adjustment mounting bracket
62-Right side adjustment mounting rack 631-adjustment bottom plate
632-adjusting left side plate 633-adjusting right side plate
634-adjusting upper top plate 641-lower end adjusting screw
642-left end adjusting screw 643-right end adjusting screw
644-upper end adjusting screw 711-left flange pipe
712 left side drive cylinder 713 left side drive flange
714-left side connecting rod 721-right side flange pipe
722-right side driving cylinder 723-right side driving flange
724-right connecting rod 8-elastic component
81-guide post fixing block 82-movable guide post
83-fixed stop 84-compression spring.
Detailed Description
The present invention will be described below with reference to specific embodiments.
As shown in fig. 1 to 5, a system for interchanging switchable neutron conduits includes a fixed mounting frame 1 and a vacuum chamber housing 2 installed on the upper end side of the fixed mounting frame 1, the fixed mounting frame 1 includes a fixed mounting frame body 11 which is rectangular and is in a full-surrounding shape and is horizontally and transversely arranged, four fixed mounting support legs 12 which are rectangular and are respectively vertically arranged are installed on the lower end side of the fixed mounting frame body 11, and the upper end portions of the fixed mounting support legs 12 are respectively connected with the fixed mounting frame body 11.
Further, the vacuum chamber shell 2 comprises a vacuum chamber lower bottom plate 21, a vacuum chamber upper top plate 22 and a vacuum chamber left side plate 23 which are respectively arranged horizontally and horizontally, a vacuum chamber right side plate 24, wherein the vacuum chamber upper top plate 22 is positioned right above the vacuum chamber lower bottom plate 21, the vacuum chamber upper top plate 22 and the vacuum chamber lower bottom plate 21 are arranged at intervals, the vacuum chamber left side plate 23 is positioned at the left end side of the vacuum chamber right side plate 24, the vacuum chamber left side plate 23 and the vacuum chamber right side plate 24 are arranged at intervals, the left end edge portion of the vacuum chamber lower bottom plate 21 is in bolt connection with the lower end edge portion of the vacuum chamber left side plate 23, the right end edge portion of the vacuum chamber lower bottom plate 21 is in bolt connection with the lower end edge portion of the vacuum chamber right side plate 24, the left end edge portion of the vacuum chamber upper top plate 22 is in bolt connection with the upper end; the front end part of the vacuum cavity shell 2 is provided with a vacuum cavity front end flange 25 which is vertically arranged and is respectively screwed with the vacuum cavity lower bottom plate 21, the vacuum cavity upper top plate 22, the vacuum cavity left side plate 23 and the vacuum cavity right side plate 24, and the rear end part of the vacuum cavity shell 2 is provided with a vacuum cavity rear end flange 26 which is vertically arranged and is respectively screwed with the vacuum cavity lower bottom plate 21, the vacuum cavity upper top plate 22, the vacuum cavity left side plate 23 and the vacuum cavity right side plate 24; a vacuum chamber 27 which is formed by enclosing a vacuum chamber lower bottom plate 21, a vacuum chamber upper top plate 22, a vacuum chamber left side plate 23 and a vacuum chamber right side plate 24 together and is filled with helium gas during operation is formed inside the vacuum chamber shell 2, and the vacuum chamber lower bottom plate 21 of the vacuum chamber shell 2 is screwed on the upper surface of the fixed mounting frame body 11.
Furthermore, a left movable support 31 and a right movable support 32 which horizontally extend along the front-rear direction are movably installed in the vacuum chamber 27 of the vacuum chamber housing 2 in the left-right direction, the left movable support 31 is located at the left end side of the right movable support 32, the left movable support 31 and the right movable support 32 are arranged at intervals, a guide rail 41 which is located in the vacuum chamber 27 and horizontally extends along the left-right direction is screwed on the upper surface of the vacuum chamber lower plate 21, sliders 42 are screwed on the left movable support 31 and the right movable support 32 corresponding to the guide rail 41, and the sliders 42 are respectively matched with the guide rail 41; a left neutron guide tube 51 extending along the front-back direction is arranged in the vacuum chamber 27 right above the left movable support 31, the left neutron guide tube 51 and the left movable support 31 are arranged at intervals, two left adjusting mounting frames 61 arranged at intervals in the front-back direction are screwed on the left movable support 31 corresponding to the left neutron guide tube 51, and the left neutron guide tube 51 is arranged on the two left adjusting mounting frames 61; in the vacuum chamber 27, right-side neutron guide tubes 52 which extend in the front-back direction and have cross-sectional areas different from that of the left-side neutron guide tube 51 are installed right above the right-side movable support 32, the right-side neutron guide tubes 52 and the right-side movable support 32 are arranged at intervals, two right-side adjustment mounting frames 62 which are arranged at intervals in the front-back direction are installed on the right-side neutron guide tubes 52 corresponding to the right-side movable support 32 in a threaded manner, and the right-side neutron guide tubes 52 are installed.
In addition, a left flange tube 711 extending transversely along the left-right direction is screwed on the outer surface of the left side plate 23 of the vacuum chamber, a left driving cylinder 712 horizontally moving left and right is screwed on the left end of the left flange tube 711, the extending end of the piston rod of the left driving cylinder 712 sequentially passes through the central hole of the left flange tube 711 and the left side plate 23 of the vacuum chamber and extends into the vacuum chamber 27, a left driving flange 713 is screwed on the lower surface of the left movable support 31, and the extending end of the piston rod of the left driving cylinder 712 is connected with the left driving flange 713 through a left connecting rod 714; the outer surface of the right side plate 24 of the vacuum cavity is screwed with a right side flange tube 721 which transversely extends along the left-right direction, the right end part of the right side flange tube 721 is screwed with a right side driving cylinder 722 which horizontally moves left and right, the extending end part of the piston rod of the right side driving cylinder 722 sequentially passes through the central hole of the right side flange tube 721 and the right side plate 24 of the vacuum cavity and extends into the vacuum cavity chamber 27, the lower surface of the right movable bracket 32 is screwed with a right side driving flange 723, and the extending end part of the piston rod of the right side driving cylinder 722 is connected with the right side driving flange 723 through a.
To be further explained, the left adjustment mounting bracket 61 and the right adjustment mounting bracket 62 respectively include an adjustment lower bottom plate 631 horizontally extending along the left-right direction, an adjustment left side plate 632 vertically extending upward is screwed on the left end of the adjustment lower bottom plate 631, an adjustment right side plate 633 vertically extending upward is screwed on the right end of the adjustment lower bottom plate 631, the adjustment left side plate 632 is right opposite to the adjustment right side plate 633 and is arranged at an interval, an adjustment upper top plate 634 is screwed between the upper end of the adjustment left side plate 632 and the upper end of the adjustment right side plate 633, and the adjustment lower bottom plate 631, the adjustment left side plate 632, the adjustment right side plate 633 and the adjustment upper top plate 634 jointly enclose an adjustment mounting hole in a rectangular shape; a lower end adjusting threaded hole which is opened upwards is formed in the middle position of the adjusting lower base plate 631, a lower end adjusting screw 641 is screwed in the lower end adjusting threaded hole, and the upper end part of the lower end adjusting screw 641 extends to the upper end side of the bottom frame base plate; the left adjusting side plate 632 is provided with a left adjusting threaded hole which is completely penetrated left and right, a left adjusting screw 642 is screwed in the left adjusting threaded hole, and the threaded end part of the left adjusting screw 642 extends to the left end side of the left adjusting side plate 632; the right adjusting side plate 633 is provided with a right adjusting threaded hole which is completely penetrated left and right, a right adjusting screw 643 is screwed in the right adjusting threaded hole, and the threaded end of the right adjusting screw 643 extends to the left end side of the right adjusting side plate 633; an upper end adjusting threaded hole which is completely penetrated up and down is formed in the middle position of the adjusting upper top plate 634, an upper end adjusting screw 644 is screwed in the upper end adjusting threaded hole, and the threaded end part of the upper end adjusting screw 644 extends to the lower end side of the adjusting upper top plate 634;
the adjusting lower bottom plate 631 of the left adjusting mounting bracket 61 is screwed on the upper surface of the left movable bracket 31, the left neutron guide tube 51 extends into the adjusting mounting hole of the left adjusting mounting bracket 61, and the lower end adjusting screw 641, the left end adjusting screw 642, the right end adjusting screw 643 and the upper end adjusting screw 644 of the left adjusting mounting bracket 61 are respectively in contact with the corresponding side surfaces of the left neutron guide tube 51;
the lower adjusting bottom plate 631 of the right adjusting mounting bracket 62 is screwed to the upper surface of the right movable support 32, the right neutron guide tube 52 extends into the adjusting mounting hole of the right adjusting mounting bracket 62, and the lower adjusting screw 641, the left adjusting screw 642, the right adjusting screw 643 and the upper adjusting screw 644 of the right adjusting mounting bracket 62 are respectively in contact with the corresponding side surfaces of the right neutron guide tube 52.
Furthermore, elastic assemblies 8 are respectively arranged between the left movable support 31 and the vacuum chamber shell 2 and between the right movable support 32 and the vacuum chamber shell 2, each elastic assembly 8 comprises a guide pillar fixing block 81, a movable guide pillar 82 which is screwed and fastened on the guide pillar fixing block 81 and horizontally extends along the left and right direction, and a fixed stop block which is screwed and fastened on the upper surface of the lower bottom plate 21 of the vacuum chamber, the fixed stop block is provided with a guide pillar mounting hole which completely penetrates left and right corresponding to the movable guide pillar 82, the movable guide pillar 82 is embedded in the guide pillar mounting hole of the fixed stop block, and a compression spring 84 which is sleeved on the periphery of the movable guide pillar 82 is arranged between the guide pillar fixing block 81; for the elastic component 8 between the left movable bracket 31 and the vacuum chamber shell 2, a guide post fixing block 81 of the elastic component 8 is screwed on the left movable bracket 31; for the elastic member 8 between the right movable bracket 32 and the vacuum chamber casing 2, the guide post fixing block 81 of the elastic member 8 is screwed to the right movable bracket 32.
In the working process of the invention, when the left neutron guide tube 51 needs to be switched to the working position, before the left driving cylinder 712 acts, the right driving cylinder 722 acts, a piston rod of the right driving cylinder 722 pulls the right movable support 32 to move towards the right through the right connecting rod 724 and the right driving flange 723, and the right movable support 32 moving towards the right drives the two right adjusting mounting frames 62 and the right neutron guide tube 52 to move towards the right, so that the right neutron guide tube 52 deviates from the working position; after the right driving cylinder 722 finishes acting, the left driving cylinder 712 acts, a piston rod of the left driving cylinder 712 drives the left movable support 31 to move towards the right through the left connecting rod 714 and the left driving flange 713, and the left movable support 31 moving towards the right drives the two left adjusting mounting frames 61 and the left neutron guide tube 51 to move towards the right, so that the left neutron guide tube 51 moves to a working position.
When the right neutron guide tube 52 needs to be switched to the operating position, before the right driving cylinder 722 is operated, the left driving cylinder 712 is operated, the piston rod of the left driving cylinder 712 pulls the left movable bracket 31 to move towards the left side through the left connecting rod 714 and the left driving flange 713, and the left movable bracket 31 moving towards the left side drives the two left adjusting mounting frames 61 and the left neutron guide tube 51 to move towards the left side, so that the left neutron guide tube 51 deviates from the operating position; after the left driving cylinder 712 finishes the action, the right driving cylinder 722 acts, a piston rod of the right driving cylinder 722 drives the right movable support 32 to move towards the left side through the right connecting rod 724 and the right driving flange 723, and the right movable support 32 moving towards the left side drives the two right adjusting mounting frames 62 and the right neutron guide tube 52 to move towards the left side, so that the right neutron guide tube 52 moves to the working position.
It should be emphasized that, in the process that the left driving cylinder 712 drives the left movable bracket 31 to move left and right and the right driving cylinder 722 drives the right movable bracket 32 to move left and right, the present invention guides the left movable bracket 31 and the right movable bracket 32 to move smoothly and reliably through the guide pair composed of the guide rail 41 and the slide block 42.
In addition, in the process that the left driving cylinder 712 drives the left movable bracket 31 to move towards the right side and the right driving cylinder 722 drives the right movable bracket 32 to move towards the left side, the invention can realize elastic buffering through the elastic component 8.
In addition, for the left and right adjustment mounting brackets 61 and 62 of the invention, the left neutron guide tube 51 or the right neutron guide tube 52 can be clamped and fixed by the lower end adjusting screw 641, the left end adjusting screw 642, the right end adjusting screw 643 and the upper end adjusting screw 644; in this process, the position of the left neutron guide tube 51 or the right neutron guide tube 52 can be adjusted by adjusting the lower end adjusting screw 641, the left end adjusting screw 642, the right end adjusting screw 643 and the upper end adjusting screw 644 in a rotating manner, so that the fine adjustment of the installation position of the left neutron guide tube 51 and the right neutron guide tube 52 is realized.
By combining the above conditions, the neutron guide tube with different cross-sectional areas can be exchanged effectively.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (3)
1. An interchange system of switchable neutron conduits, characterized by: the vacuum cavity vacuum pump comprises a fixed mounting frame (1) and a vacuum cavity shell (2) arranged on the upper end side of the fixed mounting frame (1), wherein the fixed mounting frame (1) comprises a fixed mounting frame body (11) which is rectangular in full-surrounding shape and horizontally and transversely arranged, four fixed mounting support legs (12) which are rectangular in distribution and vertically arranged respectively are arranged on the lower end side of the fixed mounting frame body (11), and the upper end part of each fixed mounting support leg (12) is connected with the fixed mounting frame body (11) respectively;
the vacuum cavity shell (2) comprises a vacuum cavity lower bottom plate (21), a vacuum cavity upper top plate (22) and a vacuum cavity left side plate (23) and a vacuum cavity right side plate (24) which are horizontally and transversely arranged respectively, the vacuum cavity upper top plate (22) is positioned right above the vacuum cavity lower bottom plate (21), the vacuum cavity upper top plate (22) and the vacuum cavity lower bottom plate (21) are arranged at intervals, the vacuum cavity left side plate (23) is positioned at the left end side of the vacuum cavity right side plate (24), the vacuum cavity left side plate (23) and the vacuum cavity right side plate (24) are arranged at intervals, the left end edge part of the vacuum cavity lower bottom plate (21) is in threaded connection with the lower end edge part of the vacuum cavity left side plate (23), the right end edge part of the vacuum cavity lower bottom plate (21) is in threaded connection with the lower end edge part of the vacuum cavity right side plate (24), the left end edge part, the right end edge of the vacuum cavity upper top plate (22) is in threaded connection with the upper end edge of the vacuum cavity right side plate (24); the front end part of the vacuum cavity shell (2) is provided with a vacuum cavity front end flange (25) which is vertically arranged and is respectively screwed with the vacuum cavity lower bottom plate (21), the vacuum cavity upper top plate (22), the vacuum cavity left side plate (23) and the vacuum cavity right side plate (24), and the rear end part of the vacuum cavity shell (2) is provided with a vacuum cavity rear end flange (26) which is vertically arranged and is respectively screwed with the vacuum cavity lower bottom plate (21), the vacuum cavity upper top plate (22), the vacuum cavity left side plate (23) and the vacuum cavity right side plate (24); a vacuum chamber (27) which is formed by enclosing a vacuum chamber lower bottom plate (21), a vacuum chamber upper top plate (22), a vacuum chamber left side plate (23) and a vacuum chamber right side plate (24) together and is filled with helium gas during working is formed inside the vacuum chamber shell (2), and the vacuum chamber lower bottom plate (21) of the vacuum chamber shell (2) is screwed on the upper surface of the fixed mounting frame body (11);
a left movable support (31) and a right movable support (32) which horizontally extend along the front-back direction are movably arranged in a vacuum chamber (27) of the vacuum chamber shell (2) in a left-right mode relatively, the left movable support (31) is positioned at the left end side of the right movable support (32), the left movable support (31) and the right movable support (32) are arranged at intervals, a guide rail (41) which is positioned in the vacuum chamber (27) and horizontally extends along the left-right direction is screwed on the upper surface of a vacuum chamber lower base plate (21), sliding blocks (42) are respectively screwed on the left movable support (31) and the right movable support (32) corresponding to the guide rail (41), and the sliding blocks (42) are respectively matched with the guide rail (41); a left neutron guide pipe (51) extending along the front-back direction is arranged in the vacuum chamber (27) right above the left movable support (31), the left neutron guide pipe (51) and the left movable support (31) are arranged at intervals, two left adjusting mounting frames (61) arranged at intervals front-back are screwed on the left movable support (31) corresponding to the left neutron guide pipe (51), and the left neutron guide pipe (51) is arranged on the two left adjusting mounting frames (61); a right-side neutron guide pipe (52) which extends along the front-back direction and has a cross section area different from that of the left-side neutron guide pipe (51) is arranged right above the right-side movable support (32) in the vacuum chamber (27), the right-side neutron guide pipe (52) and the right-side movable support (32) are arranged at intervals, two right-side adjusting mounting frames (62) which are arranged at intervals in the front-back direction are screwed on the right-side movable support (32) corresponding to the right-side neutron guide pipe (52), and the right-side neutron guide pipe (52) is arranged on the two right-side;
the outer surface of the left side plate (23) of the vacuum cavity is provided with a left side flange pipe (711) which transversely extends along the left-right direction in a threaded manner, the left end part of the left side flange pipe (711) is provided with a left side driving cylinder (712) which horizontally moves left and right in a threaded manner, the extending end part of a piston rod of the left side driving cylinder (712) sequentially penetrates through a central hole of the left side flange pipe (711) and the left side plate (23) of the vacuum cavity and extends into the vacuum cavity chamber (27), the lower surface of the left side movable support (31) is provided with a left side driving flange (713) in a threaded manner, and the extending end part of the piston rod of the left side driving cylinder (712; the outer surface spiral shell of vacuum chamber right side board (24) is equipped with along the horizontal right side flange pipe (721) that extends of left and right sides, the right end spiral shell of right side flange pipe (721) is equipped with and controls the right side of horizontal action and drives actuating cylinder (722), the piston rod of right side drive actuating cylinder (722) extends the tip and passes the centre bore of right side flange pipe (721), vacuum chamber right side board (24) in proper order and stretch into in vacuum chamber (27), right side drive flange (723) are equipped with to the lower surface spiral shell of right side movable support (32), the piston rod of right side drive actuating cylinder (722) extends the tip and is connected with right side drive flange (723) through right side connecting rod (724).
2. The interchangeable system of switchable neutron conduits of claim 1, wherein: the left side adjusting mounting frame (61) and the right side adjusting mounting frame (62) respectively comprise an adjusting lower bottom plate (631) which horizontally extends along the left-right direction, an adjusting left side plate (632) which vertically extends upwards is mounted on a left end portion of the adjusting lower bottom plate (631) in a screwed manner, an adjusting right side plate (633) which vertically extends upwards is mounted on a right end portion of the adjusting lower bottom plate (631) in a screwed manner, the adjusting left side plate (632) and the adjusting right side plate (633) are right-left opposite to each other and arranged at intervals, an adjusting upper top plate (634) is mounted between an upper end portion of the adjusting left side plate (632) and an upper end portion of the adjusting right side plate (633) in a screwed manner, and the adjusting lower bottom plate (631), the adjusting left side plate (632), the adjusting right side plate (633) and the adjusting; a lower end adjusting threaded hole which is opened upwards is formed in the middle position of the adjusting lower bottom plate (631), a lower end adjusting screw (641) is screwed in the lower end adjusting threaded hole, and the upper end part of the lower end adjusting screw (641) extends to the upper end side of the bottom frame bottom plate; the left adjusting side plate (632) is provided with a left end adjusting threaded hole which is completely penetrated left and right, a left end adjusting screw (642) is screwed in the left end adjusting threaded hole, and the threaded end part of the left end adjusting screw (642) extends to the left end side of the left adjusting side plate (632); the right adjusting side plate (633) is provided with a right adjusting threaded hole which is completely penetrated left and right, a right adjusting screw (643) is screwed in the right adjusting threaded hole, and the threaded end part of the right adjusting screw (643) extends to the left end side of the right adjusting side plate (633); an upper end adjusting threaded hole which is completely penetrated up and down is formed in the middle position of the adjusting upper top plate (634), an upper end adjusting screw (644) is screwed in the upper end adjusting threaded hole, and the threaded end part of the upper end adjusting screw (644) extends to the lower end side of the adjusting upper top plate (634);
an adjusting lower bottom plate (631) of the left adjusting mounting frame (61) is screwed on the upper surface of the left movable support (31), the left neutron guide pipe (51) extends into an adjusting mounting hole of the left adjusting mounting frame (61), and a lower end adjusting screw (641), a left end adjusting screw (642), a right end adjusting screw (643) and an upper end adjusting screw (644) of the left adjusting mounting frame (61) are respectively in contact with corresponding side surfaces of the left neutron guide pipe (51);
an adjusting lower bottom plate (631) of the right adjusting mounting frame (62) is screwed on the upper surface of the right movable support (32), the right neutron guide pipe (52) extends into an adjusting mounting hole of the right adjusting mounting frame (62), and a lower end adjusting screw (641), a left end adjusting screw (642), a right end adjusting screw (643) and an upper end adjusting screw (644) of the right adjusting mounting frame (62) are respectively in contact with corresponding side surfaces of the right neutron guide pipe (52).
3. The interchangeable system of switchable neutron conduits of claim 1, wherein: elastic assemblies (8) are respectively arranged between the left movable support (31) and the vacuum cavity shell (2) and between the right movable support (32) and the vacuum cavity shell (2), each elastic assembly (8) comprises a guide pillar fixing block (81), a movable guide pillar (82) which is screwed and fastened on the guide pillar fixing block (81) and horizontally extends along the left and right directions, and a fixed stop block which is screwed and fastened on the upper surface of the lower bottom plate (21) of the vacuum cavity, the fixed stop block is provided with a guide pillar mounting hole which completely penetrates left and right corresponding to the movable guide pillar (82), the movable guide pillar (82) is embedded and inserted into the guide pillar mounting hole of the fixed stop block, and a compression spring (84) sleeved on the periphery of the movable guide pillar (82) is arranged between the guide pillar fixing block (81) and;
for the elastic component (8) between the left movable bracket (31) and the vacuum cavity shell (2), a guide post fixing block (81) of the elastic component (8) is screwed on the left movable bracket (31); for the elastic component (8) between the right movable bracket (32) and the vacuum cavity shell (2), a guide post fixing block (81) of the elastic component (8) is screwed on the right movable bracket (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810345550.5A CN108492903B (en) | 2018-04-17 | 2018-04-17 | Interchangeable neutron pipe's exchange system |
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| CN201810345550.5A CN108492903B (en) | 2018-04-17 | 2018-04-17 | Interchangeable neutron pipe's exchange system |
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| CN108492903B true CN108492903B (en) | 2020-01-10 |
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| CN110838381B (en) * | 2019-10-31 | 2021-08-17 | 散裂中子源科学中心 | Neutron guide tube system with multi-stage collimation adjusting mechanism and collimation method thereof |
| CN111220630B (en) * | 2020-01-16 | 2023-03-10 | 散裂中子源科学中心 | Switch motion system applied to multi-station switching of second neutron beam line switch |
| CN111208157B (en) * | 2020-01-16 | 2022-12-30 | 散裂中子源科学中心 | Beam shielding system applied to multi-station switching second neutron beam switch |
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| FR2635912A1 (en) * | 1988-08-26 | 1990-03-02 | Sodern | REGENERABLE SEALED ELECTRONIC TUBE DEVICE |
| CN2798305Y (en) * | 2004-12-30 | 2006-07-19 | 吉林省科仑辐射技术开发有限公司 | Small diameter neutron tube |
| US9008256B2 (en) * | 2008-02-27 | 2015-04-14 | Starfire Industries, Llc | Method and system for in situ depositon and regeneration of high efficiency target materials for long life nuclear reaction devices |
| CN103811093B (en) * | 2014-02-20 | 2016-06-08 | 西北核技术研究所 | Based on the low yield pulse isotropic substance neutron source that alpha-particle is launched |
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