Non-disassembly type coupling structure of streak camera and streak camera capable of being transported without disassembly

Abstract

The invention relates to the technical field of streak cameras, in particular to a streak camera disassembly-free coupling structure and a streak camera capable of being transported without disassembly, and the streak camera disassembly-free coupling structure comprises a front-end positioning part which is fixedly connected with a scanning image converter tube, the rear end of the front-end positioning part is embedded with a first limiting gasket, and the rear end of the front-end positioning part is provided with a first conical positioning part; the rear end positioning part is fixedly connected with the CMOS camera, a second limiting gasket is embedded in the front end of the rear end positioning part, and a second conical positioning part is arranged at the front end of the rear end positioning part; the supporting frame is provided with a positioning through hole matched with the outer wall of the image intensifier, the front end of the supporting frame is provided with a front-end conical positioning part matched with the first conical positioning part, and the rear end of the supporting frame is provided with a rear-end conical positioning part matched with the second conical positioning part; and the tensioning screws are used for connecting and fixing the front-end positioning part, the rear-end positioning part and the supporting frame. The streak camera does not need to be disassembled during transportation, and meanwhile the coaxiality of all devices can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of streak cameras, and in particular to a non-disassembly coupling structure of a streak camera and a streak camera that can be transported without being disassembled. Background Art

[0002] The streak camera is a very important measuring instrument in the field of ultrafast physics experimental research. When conducting certain experiments, the streak camera needs to be transported over long distances. The core components of the streak camera include scanning image converter, image intensifier and image recording component (i.e. CMOS camera). In order to make the streak camera have high spatial resolution and high response sensitivity, the output surface of the scanning image converter fluorescent screen and the input surface of the image intensifier, as well as the output surface of the image intensifier and the input surface of the CMOS camera need to be tightly coupled. The commonly used coupling method is usually to couple the two components by screw fixing. This coupling method will cause damage to the contact surface of each component during long-distance transportation. Therefore, before the experiment, the CMOS camera needs to be completely disassembled and transported, and then coupled and assembled during the experiment. This method is time-consuming and labor-intensive, and there is also the problem of poor coaxiality of each component, which is easy to affect the performance of the camera. Summary of the invention

[0003] The object of the present invention is to provide a non-disassembly coupling structure for a streak camera and a streak camera that can be transported without disassembly, so as to solve the above-mentioned defects of the prior art.

[0004] The present invention is achieved through the following technical solutions:

[0005] A non-disassembly coupling structure of a streak camera, comprising:

[0006] A front end positioning component is fixedly connected to the rear end of the scanning image converter tube, a first limiting gasket is embedded in the rear end of the front end positioning component to contact the front end of the image intensifier, and a first conical positioning portion is provided at the rear end of the front end positioning component;

[0007] A rear end positioning component is fixedly connected to the front end of the CMOS camera, a second limiting gasket is embedded in the front end of the rear end positioning component to contact the rear end of the image intensifier, and a second conical positioning portion is provided at the front end of the rear end positioning component;

[0008] A support frame is provided with a positioning through hole matched with the outer wall of the image intensifier, a front end of the support frame is provided with a front end conical positioning portion matched with the first conical positioning portion, and a rear end of the support frame is provided with a rear end conical positioning portion matched with the second conical positioning portion; and

[0009] A plurality of tightening screws are used to connect and fix the front end positioning component, the rear end positioning component and the support frame.

[0010] Optionally, the front end conical positioning portion is a conical hole coaxially arranged at the front end of the positioning through hole, and the first conical positioning portion is a conical surface arranged on the outer wall of the front end positioning component; the rear end conical positioning portion is a conical hole coaxially arranged at the rear end of the positioning through hole, and the second conical positioning portion is arranged on the conical surface of the outer wall of the rear end positioning component.

[0011] Optionally, the front end of the support frame is provided with a front end limiting hole coaxial with the positioning through hole, the cross-section of the front end limiting hole perpendicular to the axis is a polygonal structure, and the front end positioning component is provided with a first limiting portion that cooperates with the front end limiting hole; the rear end of the support frame is provided with a rear end limiting hole coaxial with the positioning through hole, the cross-section of the rear end limiting hole perpendicular to the axis is a polygonal structure, and the rear end positioning component is provided with a second limiting portion that cooperates with the rear end limiting hole.

[0012] Optionally, the front end conical positioning portion and the rear end conical positioning portion are both a plurality of conical holes arranged on the end surface of the support frame, the first conical positioning portion is a plurality of cones arranged on the end surface of the front end positioning component, and the second conical positioning portion is a plurality of cones arranged on the end surface of the rear end positioning component.

[0013] Optionally, a wear cone sleeve is provided on the cone.

[0014] Optionally, the front end positioning component includes a positioning piece and a locking piece, the inner wall of the positioning piece is provided with a positioning step that cooperates with the step of the outer wall of the scanning image converter tube; the locking piece includes two semi-encircling hoops, the two semi-encircling hoops are connected by fasteners, the locking piece is sleeved on the outer wall of the scanning image converter tube and connected to the positioning piece by the fasteners, and one end of the locking piece is against the end face of the step of the outer wall of the scanning image converter tube.

[0015] Optionally, a buffer gasket is provided between the positioning member and the locking member.

[0016] The present invention also provides a streak camera for transportation without disassembly, comprising a CMOS camera, an image intensifier and a scanning image converter, wherein the three adopt the non-disassembly coupling structure of the streak camera described in any one of the above items, and further comprising a first bracket, a positioning seat and a base plate, wherein the first bracket, the positioning seat and the support frame are all fixedly connected to the base plate, the first bracket is used to support and fix the scanning image converter, and the positioning seat is used to support the CMOS camera.

[0017] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0018] 1. In the present invention, the first limiting gasket can include a contact surface between the image intensifier and the scanning phase-changing tube, and the second limiting gasket can protect the contact surface between the image intensifier and the CMOS camera. There is no need to disassemble during transportation. The first limiting gasket and the second limiting gasket can prevent the contact surface between the image intensifier and the scanning phase-changing tube, and the contact surface between the image intensifier and the CMOS camera from being damaged by vibration during transportation.

[0019] 2. In the present invention, the front end positioning component is fixedly connected to the scanning image converter to form an integral body, and the rear end positioning part is fixedly connected to the CMOS camera to form an integral body. During coupling, the front end conical positioning part provided on the support frame cooperates with the first conical positioning part provided on the front end positioning component, and the rear end conical positioning part provided on the support frame cooperates with the second conical positioning part provided on the rear end positioning component. When the tightening screw tightens the CMOS camera, the image intensifier and the scanning image converter, the automatic centering function of the cone surface is used to ensure the coaxiality among the three, that is, to ensure the radial position accuracy of the three. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of a non-disassembly coupling structure of a streak camera provided by the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 A cross-sectional view of a non-disassembly coupling structure of a streak camera provided in Example 1;

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 The structure of the support frame in Example 1 is shown in FIG. Figure 1 ;

[0026] Figure 6 The structure of the support frame in Example 1 is shown in FIG. Figure 2 ;

[0027] Figure 7 is a cross-sectional view of the support frame in Example 1;

[0028] Figure 8 This is a schematic diagram of the structure of the rear end positioning component in Example 1;

[0029] Fig. 9 It is a structural schematic diagram of the front end positioning component in Example 1;

[0030] Fig.10 A cross-sectional view of a non-disassembly coupling structure of a streak camera provided in Example 2;

[0031] Fig.11 for Fig.10 Enlarged view of point C in the middle;

[0032] Fig.12 The structure of the support frame in Example 2 is shown in FIG. Figure 1 ;

[0033] Fig.13 The structure of the support frame in Example 2 is shown in FIG. Figure 2 ;

[0034] Fig.14 It is a structural schematic diagram of the rear end positioning component in Example 2;

[0035] Fig.15 It is a structural schematic diagram of the front end positioning component in Example 1;

[0036] Fig.16 It is a structural schematic diagram of the worn cone sleeve;

[0037] Icons: 1-front end positioning component, 101-positioning component, 1011-first conical positioning portion, 1012-first limiting portion, 1013-first annular groove, 102-locking component, 2-rear end positioning component, 201-second conical positioning portion, 202-second limiting portion, 203-second annular groove, 3-support frame, 301-front end conical positioning portion, 302-rear end conical positioning portion, 303-front end limiting hole, 304-rear end limiting hole, 305-positioning through hole, 4-tensioning screw, 5-first limiting gasket, 6-second limiting gasket, 7-buffer gasket, 8-wear cone sleeve, 9-CMOS camera, 10-image intensifier, 11-scanning image converter, 12-first bracket, 13-positioning seat, 14-base plate. DETAILED DESCRIPTION

[0038] Example 1

[0039] refer to Figure 1-Figure 9 A non-disassembly coupling structure of a streak camera includes: a front-end positioning component 1, a rear-end positioning component 2, a support frame 3 and a plurality of tightening screws 4.

[0040] The front end positioning component 1 is fixedly connected to the rear end of the scanning image converter 11 (it should be understood that, generally, the industry refers to the direction from the scanning image converter 11 to the CMOS camera 9 as the front-to-rear direction, and the rear end of the scanning image converter 11 refers to its end close to the image intensifier 10).

[0041] As an option, the front end positioning component 1 of this embodiment includes a positioning component 101 and a locking component 102, the inner wall of the positioning component 101 is provided with a positioning step that matches the outer wall step of the scanning image converter tube 11; the locking component 102 includes two semi-encircling hoops, the two semi-encircling hoops are connected by fasteners (such as screws and bolts), the locking component 102 is sleeved on the outer wall of the scanning image converter tube 11 and connected to the positioning component 101 by fasteners (such as screws and bolts), and one end of the locking component 102 is against the end face of the outer wall step of the scanning image converter tube 11, so that the relative position of the scanning image converter tube 11 and the front end positioning component 1 is fixed by the joint action of the positioning component 101 and the locking component 102. Further, a buffer gasket 7 is provided between the positioning component 101 and the locking component 102.

[0042] The rear end positioning component 2 is fixedly connected to the front end of the CMOS camera 9. As an option, in this embodiment, the rear end positioning component 2 is connected and fixed to the housing of the CMOS camera 9 by screws to form a whole.

[0043] A first limiting gasket 5 is embedded in the rear end of the front end positioning component 1 (based on the above, that is, the positioning component 101) for contacting the front end of the image intensifier 10; a second limiting gasket 6 is embedded in the front end of the rear end positioning component 2 for contacting the rear end of the image intensifier 10. In actual applications, a first annular groove 1013 is provided on the positioning component 101 for placing the first limiting gasket 5, and a second annular groove 203 is provided on the rear end positioning component 2 for placing the second limiting gasket 6.

[0044] It is worth noting that the first limiting gasket 5 can protect the contact surface between the image intensifier 10 and the scanning phase-changing tube, and the second limiting gasket 6 can protect the contact surface between the image intensifier 10 and the CMOS camera 9. There is no need to disassemble during transportation. The first limiting gasket 5 and the second limiting gasket 6 can prevent the contact surface between the image intensifier 10 and the scanning phase-changing tube, and the contact surface between the image intensifier 10 and the CMOS camera 9 from being damaged by vibration during transportation. It is easy to understand that the first limiting gasket 5 and the second limiting gasket 6 should have a certain flexibility, and the specific material is not limited. PTFE is selected in this embodiment.

[0045] The support frame 3 is provided with a positioning through hole 305 matched with the outer wall of the image intensifier 10 . The support frame 3 plays a role in supporting the image intensifier 10 . It is easy to understand that the image intensifier 10 can move axially in the positioning through hole 305 .

[0046] The rear end of the front end positioning component 1 is provided with a first conical positioning portion 1011, and the front end of the rear end positioning component 2 is provided with a second conical positioning portion 201; the front end of the support frame 3 is provided with a front end conical positioning portion 301 that cooperates with the first conical positioning portion 1011, and the rear end of the support frame 3 is provided with a rear end conical positioning portion 302 that cooperates with the second conical positioning portion 201. The tightening screw 4 is used to connect and fix the front end positioning component 1, the rear end positioning component 2 and the support frame 3. The number of the tightening screws 4 is not limited as long as a stable connection can be achieved. In this embodiment, four tightening screws 4 are provided, and other numbers can of course be provided in other embodiments.

[0047] It is worth noting that the front-end positioning component 1 is fixedly connected to the scanning image converter 11 to form a whole, and the rear-end positioning part is fixedly connected to the CMOS camera 9 to form a whole. When coupled, the front-end conical positioning part 301 provided on the support frame 3 cooperates with the first conical positioning part 1011 provided on the front-end positioning component 1, and the rear-end conical positioning part 302 provided on the support frame 3 cooperates with the second conical positioning part 201 provided on the rear-end positioning component 2. When the tightening screw 4 tightens the CMOS camera 9, the image intensifier 10 and the scanning image converter 11, the automatic centering function of the cone surface is used to ensure the coaxiality between the three, that is, to ensure the radial position accuracy of the three.

[0048] As an option, the specific structures of the first conical positioning portion 1011, the second conical positioning portion 201, the front end conical positioning portion 301 and the rear end conical positioning portion 302 of the present embodiment are as follows: the front end conical positioning portion 301 is a conical hole coaxially arranged at the front end of the positioning through hole 305, and the first conical positioning portion 1011 is a conical surface arranged on the outer wall of the front end positioning component 1; the rear end conical positioning portion 302 is a conical hole coaxially arranged at the rear end of the positioning through hole 305, and the second conical positioning portion 201 is arranged on the conical surface of the outer wall of the rear end positioning component 2.

[0049] On the basis of the above, the front end of the support frame 3 of this embodiment is provided with a front end limiting hole 303 coaxial with the positioning through hole 305, and the cross-section of the front end limiting hole 303 perpendicular to the axis is a polygonal structure, and the front end positioning component 1 is provided with a first limiting portion 1012 that cooperates with the front end limiting hole 303; the rear end of the support frame 3 is provided with a rear end limiting hole 304 coaxial with the positioning through hole 305, and the cross-section of the rear end limiting hole 304 perpendicular to the axis is a polygonal structure, and the rear end positioning component 2 is provided with a second limiting portion 202 that cooperates with the rear end limiting hole 304.

[0050] It is worth noting that the cross-sections of the front-end limiting hole 303 and the rear-end limiting hole 304 perpendicular to the axis are both polygonal structures, and the cross-sections of the first limiting portion 1012 and the second limiting portion 202 perpendicular to the axis are also polygonal structures. In this way, the positions of the CMOS camera 9, the image intensifier 10 and the scanning image converter 11 in the circumferential direction can be limited during the initial assembly, that is, the three can be limited to rotate around the axis at the beginning of the assembly. The specific shape of the above-mentioned "polygonal structure" is not limited, as long as it can play the anti-rotation function. The present embodiment is an octagon, and other embodiments can of course be of other shapes.

[0051] Example 2

[0052] refer to Figure 10-Figure 16 The difference between this embodiment and Embodiment 1 is that the specific structures of the first conical positioning portion 1011, the second conical positioning portion 201, the front conical positioning portion 301 and the rear conical positioning portion 302 are different.

[0053] In this embodiment, the front end conical positioning part 301 and the rear end conical positioning part 302 are both a plurality of conical holes arranged on the end face of the support frame 3, the first conical positioning part 1011 is a plurality of frustums arranged on the end face of the front end positioning component 1, and the second conical positioning part 201 is a plurality of frustums arranged on the end face of the rear end positioning component 2. For example, if the front end face and the rear end face of the support frame 3 are both provided with four conical holes, then the end face of the front end positioning component 1 and the end face of the rear end positioning component 2 are each provided with four frustums. It should be understood that in actual applications, the conical holes are matched with the corresponding frustums, and the number of conical holes and frustums can of course be set to other numbers in other embodiments. Furthermore, a wear cone sleeve 8 is provided on the frustum to facilitate replacement after wear.

[0054] Example 3

[0055] The present embodiment provides a streak camera for transportation without disassembly, including a CMOS camera 9, an image intensifier 10 and a scanning image converter 11. The three adopt the non-disassembly coupling structure of the streak camera provided in Example 1. The present embodiment also includes a first bracket 12, a positioning seat 13 and a bottom plate 14. The first bracket 12, the positioning seat 13 and the support frame 3 are all fixedly connected to the bottom plate 14. The first bracket 12 is used to support and fix the scanning image converter 11, and the positioning seat 13 is used to support the CMOS camera 9. In practical applications, some leveling structures can also be combined to level the CMOS camera 9.

[0056] Example 4

[0057] This embodiment also provides a streak camera that can be transported without disassembly. The difference between this embodiment and embodiment 3 is that the non-disassembly coupling structure of the streak camera provided in embodiment 2 is used between the CMOS camera 9, the image intensifier 10 and the scanning image converter 11 in this embodiment.

[0058] It is worth noting that the streak cameras provided in Examples 3 and 4 for transportation without disassembly do not need to be disassembled during transportation and do not need to be reassembled before the experiment, which saves time and effort and greatly improves efficiency.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A non-disassembly coupling structure for a streak camera, characterized in that: include: A front end positioning component is fixedly connected to the rear end of the scanning image converter tube, a first limiting gasket is embedded in the rear end of the front end positioning component to contact the front end of the image intensifier, and a first conical positioning portion is provided at the rear end of the front end positioning component; A rear end positioning component is fixedly connected to the front end of the CMOS camera, a second limiting gasket is embedded in the front end of the rear end positioning component to contact the rear end of the image intensifier, and a second conical positioning portion is provided at the front end of the rear end positioning component; A support frame is provided with a positioning through hole matched with the outer wall of the image intensifier, a front end of the support frame is provided with a front end conical positioning portion matched with the first conical positioning portion, and a rear end of the support frame is provided with a rear end conical positioning portion matched with the second conical positioning portion; and A plurality of tightening screws are used to connect and fix the front end positioning component, the rear end positioning component and the support frame.

2. The non-disassembly coupling structure of the streak camera according to claim 1, characterized in that: The front end conical positioning portion is a conical hole coaxially arranged at the front end of the positioning through hole, and the first conical positioning portion is a conical surface arranged on the outer wall of the front end positioning component; the rear end conical positioning portion is a conical hole coaxially arranged at the rear end of the positioning through hole, and the second conical positioning portion is arranged on the conical surface of the outer wall of the rear end positioning component.

3. The non-disassembly coupling structure of the streak camera according to claim 2, characterized in that: The front end of the support frame is provided with a front end limiting hole coaxial with the positioning through hole, and the cross-section of the front end limiting hole perpendicular to the axis is a polygonal structure, and the front end positioning component is provided with a first limiting portion cooperating with the front end limiting hole; the rear end of the support frame is provided with a rear end limiting hole coaxial with the positioning through hole, and the cross-section of the rear end limiting hole perpendicular to the axis is a polygonal structure, and the rear end positioning component is provided with a second limiting portion cooperating with the rear end limiting hole.

4. The non-disassembly coupling structure of a streak camera according to claim 1, characterized in that: The front end conical positioning portion and the rear end conical positioning portion are both a plurality of conical holes arranged on the end face of the support frame, the first conical positioning portion is a plurality of frustums arranged on the end face of the front end positioning component, and the second conical positioning portion is a plurality of frustums arranged on the end face of the rear end positioning component.

5. The non-disassembly coupling structure of the streak camera according to claim 4, characterized in that: The frustum is provided with a wear cone sleeve.

6. The non-disassembly coupling structure of a streak camera according to any one of claims 1 to 5, characterized in that: The front end positioning component includes a positioning piece and a locking piece. The inner wall of the positioning piece is provided with a positioning step that matches the step of the outer wall of the scanning image converter tube; the locking piece includes two semi-encircling hoops, the two semi-encircling hoops are connected by fasteners, the locking piece is sleeved on the outer wall of the scanning image converter tube and connected to the positioning piece by the fastener, and one end of the locking piece is against the end face of the step of the outer wall of the scanning image converter tube.

7. The non-disassembly coupling structure of a streak camera according to claim 6, characterized in that: A buffer gasket is provided between the positioning member and the locking member.

8. A streak camera for transportation without disassembly, comprising a CMOS camera, an image intensifier and a scanning image converter, wherein the streak camera non-disassembly coupling structure according to any one of claims 1 to 7 is used between the three, characterized in that: It also includes a first bracket, a positioning seat and a bottom plate. The first bracket, the positioning seat and the supporting frame are all fixedly connected to the bottom plate. The first bracket is used to support and fix the scanning image converter tube, and the positioning seat is used to support the CMOS camera.

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