CN218443778U - Spark appearance direct measurement device - Google Patents
Spark appearance direct measurement device Download PDFInfo
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- CN218443778U CN218443778U CN202222154514.5U CN202222154514U CN218443778U CN 218443778 U CN218443778 U CN 218443778U CN 202222154514 U CN202222154514 U CN 202222154514U CN 218443778 U CN218443778 U CN 218443778U
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- ignition
- speed camera
- lifting
- darkroom
- spark
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Abstract
The utility model discloses a spark appearance direct measurement device, including the darkroom box, the inboard top center of darkroom box is provided with the ignition electric nozzle subassembly, a plurality of side high-speed cameras are arranged along the circumference around the ignition electric nozzle subassembly, the inboard bottom center of darkroom box is provided with the center high-speed camera, the side high-speed camera and the center high-speed camera are both connected with the data acquisition processor, the ignition electric nozzle subassembly is connected with the ignition exciter; the utility model discloses the electric spark that can adapt to different volumes carries out the multi-direction shooting of total coverage, and then forms the three-dimensional figure of electric spark for the electric spark appearance is close the true condition more.
Description
Technical Field
The utility model belongs to the technical field of the electric spark appearance is measured, specifically a spark appearance direct measurement device.
Background
The ignition system of an aircraft engine is an important part of the engine and comprises an ignition exciter, an ignition cable and an ignition electric nozzle, and is used for starting or boosting the ignition of the engine. The ignition exciter has the main function of converting low-voltage direct current/alternating current transmitted from the ground or the engine into high-voltage pulse electricity, the high-voltage pulse electricity is transmitted to the ignition electric nozzle through an ignition cable, and high-energy electric sparks are generated at the ignition end of the ignition electric nozzle to ignite oil-gas mixtures in a combustion chamber of the engine.
The energy of the spark and the profile of the spark produced by the ignition system are the most important indicators of the ignition system. Under the same condition of electric spark energy, the longer the spark length and the larger the volume, the higher the ignition success probability and the better the effect. In order to realize the ignition operation of the aircraft engine with high reliability, the value of the energy of the electric spark is required to be accurate, the length of the electric spark is required to be as long as possible, and the volume of the electric spark is required to be as large as possible. Therefore, the accurate measurement of the size and the shape of the electric spark energy can provide reliable basis for the design of an ignition system.
At present, the measurement of the shape of the electric spark mainly comprises the step of shooting a single-side image of the electric spark through a camera so as to present a two-dimensional profile of the electric spark, and the three-dimensional shape of the electric spark cannot be accurately reproduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a spark appearance direct measurement device can realize carrying out multi-direction direct shooting to the appearance of electric spark, and then demonstrates the three-dimensional image of electric spark.
The utility model discloses a following technical scheme realizes:
the utility model provides a spark appearance direct measurement device, includes the darkroom box, the inboard top center department of darkroom box is provided with ignition electric nozzle subassembly, be provided with the high-speed camera of a plurality of sides around the ignition electric nozzle subassembly along circumference, the inboard bottom center department of darkroom box is provided with central high-speed camera, the high-speed camera of side and central high-speed camera all are connected with data acquisition treater, ignition electric nozzle subassembly is connected with the ignition exciter.
When the appearance of the electric spark needs to be measured and collected, the ignition electric nozzle assembly is excited by the ignition exciter to ignite, and bright electric sparks are generated inside the darkroom box body. The side surface appearance images of the electric sparks are shot by a plurality of side surface high-speed cameras circumferentially arranged around the ignition nozzle assembly at the top of the inner side of the darkroom box body. And a central outline image of the electric spark is shot by a central high-speed camera at the bottom of the inner side of the darkroom box body. And then the side high-speed camera and the central high-speed camera transmit the shot electric spark appearance image to a data acquisition processor, and the data acquisition processor performs three-dimensional reconstruction through the side image and the central image of the ignition spark so as to obtain a three-dimensional model of the electric spark.
The data acquisition processor comprises a data memory and a Central Processing Unit (CPU), wherein the data memory is used for receiving images from the side high-speed camera and the central high-speed camera, storing the images in a backup manner and transmitting the images to the CPU, a three-dimensional reconstruction algorithm is prestored in the CPU, and the electric spark is three-dimensionally reconstructed according to a side image and a central image of the electric spark through the three-dimensional reconstruction algorithm.
The ignition exciter is a commercially available product that is purchased directly, and is not an improvement of the present invention, and therefore, the specific structure and the operation principle thereof are not described herein again.
The above three-dimensional reconstruction algorithm is not the improvement point of the present three-dimensional reconstruction method, and therefore the detailed reconstruction principle and reconstruction method thereof are not repeated herein. The data memory and the central processing unit CPU are all commercially available products purchased directly, and the specific structure and the use principle thereof are not described herein again.
In order to realize better the utility model discloses, it is further, the inboard top of darkroom box is located the radial slide who is provided with a plurality of directional ignition electric nozzle assemblies along circumference around the ignition electric nozzle assembly, radial slide's slip is served and only the high-speed camera in side.
The high-speed camera of side is driven to be close to or keep away from the subassembly of ignition electric nozzle through slider and removes, and then adjusts the interval between high-speed camera of side and the subassembly side of ignition electric nozzle.
In order to realize better the utility model discloses, it is further, radial slider includes radial slide rail, radial sliding seat, radial adjusting screw, radial slide rail is along the radial setting at darkroom box top center, and the last slip of radial slide rail is provided with the radial sliding seat, the bottom of radial sliding seat is provided with the high-speed camera in side, one side of radial sliding seat is provided with the radial adjusting screw who extends to the darkroom box outside, the lateral wall threaded connection of radial adjusting screw and darkroom box.
In order to realize better the utility model discloses, it is further, be provided with transparent insulating glass between the shooting end of the high-speed camera in side and the ignition electric nozzle subassembly.
In order to realize better the utility model discloses, it is further, the inboard bottom center department of darkroom box is provided with elevating gear, elevating gear's lift is served and is provided with central high-speed camera. The central high-speed camera is driven by the lifting device to vertically lift, and then the distance between the central high-speed camera and the center of the ignition electric nozzle assembly is adjusted.
In order to better realize the utility model, the lifting device comprises a lifting screw, a lifting upright post and a lifting platform, wherein the lifting screw is vertically and threadedly arranged at the center of the bottom of the inner side of the darkroom box, the lifting platform is rotationally clamped at the top end of the lifting screw, and a central high-speed camera is arranged at the top of the lifting platform; one side parallel arrangement of lifting screw has the lift stand, the slip hole sliding connection on lift stand and the elevating platform.
In order to realize better the utility model discloses, it is further, be provided with transparent insulating glass between the camera end of center high-speed camera and the ignition electric nozzle subassembly.
In order to better realize the utility model, further, the ignition electric nozzle assembly comprises an ignition electric nozzle clamp, an ignition electric nozzle and an ignition cable, the ignition electric nozzle clamp is arranged at the center of the top of the darkroom box body, one end of the ignition electric nozzle clamp extends downwards to the inner side of the darkroom box body, and the other end of the ignition electric nozzle clamp extends upwards to the outer side of the darkroom box body; the center department of ignition electric torch anchor clamps is provided with the mounting hole, install the ignition electric torch in the mounting hole, be provided with the elasticity piece of propping of fixed ignition electric torch on the lateral wall of mounting hole, the one end of ignition electric torch extends to the inboard of darkroom box, the other end of ignition electric torch extends to the outside of darkroom box and is connected with the ignition exciter through ignition cable.
In order to realize better the utility model discloses, it is further, elasticity top tight piece is including setting up the elasticity buckle on the mounting hole inner wall, be provided with the draw-in groove with the elasticity buckle joint on the lateral wall of ignition electric nozzle.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
(1) The utility model discloses a set up the ignition electric nozzle subassembly in the inboard center department in top of darkroom box and be used for producing the electric spark, and evenly set up a plurality of side high-speed cameras along circumference around the ignition electric nozzle subassembly, carry out diversified shooting to the side of electric spark through a plurality of side high-speed cameras; meanwhile, a central high-speed camera is arranged at the center of the bottom of the inner side of the darkroom box body aiming at the center position of the electric spark, and a central image of the electric spark is shot through the central high-speed camera; then, the shot side images and the shot center image are transmitted to a data acquisition processor, and the images of the electric sparks are reconstructed to form three-dimensional images of the electric sparks through a three-dimensional reconstruction algorithm built in the data acquisition processor, so that the shape of the electric sparks presented finally is closer to the real situation;
(2) The utility model discloses a set up radial slide device at the inboard top of darkroom box and lie in around the electric mouth subassembly of igniting, drive the high-speed camera of side through radial slide device and be close to or keep away from the electric mouth subassembly of igniting and remove, and then adjust the interval between high-speed camera of side and the electric spark, and then adapt to the full coverage of the electric spark of different volumes and shoot;
(3) The utility model discloses a center department in darkroom box inside bottom is provided with lifting unit, drives the vertical lift of center high-speed camera through lifting unit, and then the interval between adjustment center high-speed camera and the ignition electric nozzle subassembly, and then the vertical interval of adjustment center high-speed camera distance electric spark center to the full coverage of the electric spark of adaptation different volumes is shot.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view taken along line B-B of FIG. 1;
FIG. 3 is a schematic view of the construction of the radial slide;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
fig. 5 is a schematic structural diagram of the lifting device.
Wherein: 1-darkroom box body; 2-an ignition torch assembly; 3-side high-speed camera; 4-a central high-speed camera; 5-a data acquisition processor; 6-an ignition exciter; 7-a radial slide; 8-a lifting device; 21-ignition torch clamp; 22-ignition electric nozzle; 23-an ignition cable; 24-a resilient top member; 71-radial slide rail; 72-radial sliding seat; 73-radial adjusting screw; 81-lifting screw rod; 82-lifting upright columns; 83-lifting platform.
Detailed Description
Example 1:
the direct measuring device of spark appearance of this embodiment, as shown in fig. 1, including darkroom box 1, the inboard top center department of darkroom box 1 is provided with ignition electric nozzle subassembly 2, be provided with the high-speed camera 3 of a plurality of sides along circumference around the ignition electric nozzle subassembly 2, the inboard bottom center department of darkroom box 1 is provided with central high-speed camera 4, and side high-speed camera 3 all is connected with data acquisition processor 5 with central high-speed camera 4, and ignition electric nozzle subassembly 2 is connected with ignition exciter 6.
As shown in fig. 1 and 2, an openable top cover is arranged at the top of the darkroom case 1, an ignition nozzle assembly 2 extending into the darkroom case 1 is arranged at the center of the top cover, three side high-speed cameras 3 are uniformly arranged on the inner side end surface of the top cover around the ignition nozzle assembly 2 along the circumferential direction, and the three side high-speed cameras 3 can ensure that the side surface of the electric spark generated by the ignition nozzle assembly 2 is completely covered and shot. If the volume of the electric spark is large, the number of the side high-speed cameras 3 can be increased according to the actual situation, and if the electric spark is small, the number of the side high-speed cameras 3 can be reduced to two according to the actual situation. The number of the side high-speed cameras 3 is set to ensure that the side of the shot electric spark can be completely covered.
The bottom of the darkroom box body 1 is provided with an openable bottom cover, the center of the bottom cover is provided with a central high-speed camera 4 extending into the darkroom box body 1, and the central area of the electric spark is shot through the central high-speed camera 4.
The side high-speed camera 3 and the central high-speed camera 4 are both connected with the data acquisition processor 5 through data connection cables, side images of electric sparks and center images of the electric sparks which are shot by the side high-speed camera 3 and the central high-speed camera 4 are transmitted to the data acquisition processor 5, and the side images and the center images of the electric sparks are reconstructed through the data acquisition processor 5 to obtain a three-dimensional model of the electric sparks.
The ignition nozzle assembly 2 is connected with the ignition exciter 6 through an ignition cable, and when ignition is needed, an ignition exciting signal is sent to the ignition nozzle assembly 2 through the ignition exciter 6, so that the ignition nozzle assembly 2 is electrified to ignite.
Example 2:
the embodiment is further optimized on the basis of embodiment 1, as shown in fig. 1 and fig. 3, a plurality of radial sliding devices 7 pointing to the ignition nozzle assembly 2 are circumferentially arranged on the top of the inner side of the darkroom box 1 and around the ignition nozzle assembly 2, and the sliding ends of the radial sliding devices 7 and only the side high-speed cameras 3 are arranged.
The high-speed camera 3 on the side is driven to slide along a path passing through the center of the top of the darkroom box body 1 through the sliding device 7, and then the distance between the high-speed camera 3 on the side and the ignition nozzle assembly 2 is adjusted. When the volume of the electric spark is small, the sliding device 7 drives the side high-speed camera 3 to move close to the ignition electric nozzle component 2; when the volume of the electric spark is large, the sliding device 7 drives the side high-speed camera to move away from the ignition electric nozzle assembly 2.
Further, radial slider 7 includes radial slide rail 71, radial sliding seat 72, radial adjusting screw 73, radial slide rail 71 is along the radial setting through darkroom box 1 top center, and the slip is provided with radial sliding seat 72 on radial slide rail 71, the bottom of radial sliding seat 72 is provided with the high-speed camera 3 in side, one side of radial sliding seat 72 is provided with the radial adjusting screw 73 that extends to the darkroom box 1 outside, the lateral wall threaded connection of radial adjusting screw 73 and darkroom box 1.
Three thread mounting sleeves are uniformly arranged on the side wall of the top of the darkroom box body 1 along the circumferential direction, and radial adjusting screws 73 are mounted on the inner threads of the thread mounting sleeves. One end of the radial adjusting screw 73 extends to the outer side of the darkroom box body 1 and is provided with a rotating handle, the other end of the radial adjusting screw 73 extends to the inside of the darkroom box body 1 and is rotationally clamped with the clamping groove at one end of the radial sliding seat 72, and the end part of the radial adjusting screw 73 can rotate in the clamping groove, so that the radial adjusting screw 73 can drive the radial sliding seat 72 to linearly move and cannot drive the radial sliding seat 72 to rotate. By rotating the radial adjusting screw 73, the radial sliding seat 72 is driven to move along the radial sliding rail 71 to be close to or far away from the ignition nozzle assembly 2, so as to adjust the distance between the side high-speed camera 3 and the ignition nozzle assembly 2.
Furthermore, transparent heat-insulating glass is arranged between the shooting end of the side high-speed camera 3 and the ignition electric nozzle assembly 2, and the transparent heat-insulating glass is used for protecting the side high-speed camera 3 and does not influence the shooting of the side high-speed camera 3 on electric sparks.
Other parts of this embodiment are the same as those of embodiment 1, and thus are not described again.
Example 3:
the present embodiment is further optimized based on the above embodiment 1 or 2, as shown in fig. 1 and fig. 5, a lifting device 8 is disposed at the center of the bottom inside the darkroom box 1, and a central high-speed camera 4 is disposed on a lifting end of the lifting device 8.
Drive high-speed camera 4 in center through elevating gear 8 and carry out vertical lift, and then the interval between high-speed camera 4 in regulation center and the ignition nozzle assembly 2 center. When the electric spark is large in size, the lifting device 8 drives the central high-speed camera 4 to descend; when the volume of the electric spark is small, the central high-speed camera 4 is driven to ascend through the lifting device 8.
Further, the lifting device 8 comprises a lifting screw 81, a lifting upright 82 and a lifting platform 83, the lifting screw 81 is vertically and threadedly mounted at the center of the bottom of the inner side of the darkroom box 1, the lifting platform 83 is rotatably clamped at the top end of the lifting screw 81, and a central high-speed camera 4 is arranged at the top of the lifting platform 83; one side of the lifting screw 81 is provided with a lifting upright 82 in parallel, and the lifting upright 82 is connected with a sliding hole on the lifting platform 83 in a sliding manner.
The bottom center department of darkroom box 1 is provided with the screw thread sleeve, lifting screw 81 is installed to screw thread sleeve's inside screw thread, lifting screw 81's one end extends to the outside of darkroom box 1 and is provided with the handle, lifting screw 81's the other end extend to the inside of darkroom box 1 and rotate the joint with the draw-in groove of elevating platform 83 bottom, lifting screw 81's tip can rotate in the draw-in groove for lifting screw 81 can drive elevating platform 83 and go up and down, nevertheless can not drive elevating platform 83 and rotate. Through rotating lifting screw 81, and then drive elevating platform 83 and go up and down along lift stand 82, and then the vertical interval between high-speed camera 4 of regulation center and the ignition nozzle assembly 2.
Furthermore, transparent heat insulation glass is arranged between the camera end of the central high-speed camera 4 and the ignition electric nozzle assembly 2, and the transparent heat insulation glass is used for protecting the central high-speed camera 4 and does not influence the shooting of the central high-speed camera 4 to electric sparks.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
the present embodiment is further optimized based on any one of the above embodiments 1 to 3, as shown in fig. 1 and 4, the ignition torch assembly 2 includes an ignition torch clamp 21, an ignition torch 22, and an ignition cable 23, the ignition torch clamp 21 is disposed at the top center of the darkroom casing 1, one end of the ignition torch clamp 21 extends downward to the inside of the darkroom casing 1, and the other end of the ignition torch clamp 21 extends upward to the outside of the darkroom casing 1; the center department of ignition electric nozzle anchor clamps 21 is provided with the mounting hole, install ignition electric nozzle 22 in the mounting hole, be provided with the elasticity top piece 24 of fixed ignition electric nozzle 22 on the lateral wall of mounting hole, the one end of ignition electric nozzle 22 extends to the inboard of darkroom box 1, the other end of ignition electric nozzle 22 extends to the outside of darkroom box 1 and is connected with ignition exciter 6 through ignition cable 23.
And directly inserting the ignition electric nozzle 22 into the mounting hole on the ignition electric nozzle clamp 21 until the elastic jacking piece 24 on the side wall of the mounting hole jacks the side wall of the ignition electric nozzle 22, so as to realize clamping and fixing of the ignition electric nozzle 22. One end of the ignition electric nozzle 22 extending to the outer side of the darkroom box body 1 is provided with a cable quick-plugging port which is conveniently butted with the ignition cable 23.
Further, the elastic jacking piece 24 comprises an elastic buckle arranged on the inner wall of the mounting hole, and a clamping groove clamped with the elastic buckle is arranged on the side wall of the ignition electric nozzle 22. The elastic buckle stretches into the clamping groove, is clamped with the clamping groove, and simultaneously tightly pushes the inner groove surface of the clamping groove, so that the ignition electric nozzle 22 is fixed.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (9)
1. The utility model provides a spark appearance direct measurement device, includes darkroom box (1), its characterized in that, the inboard top center department of darkroom box (1) is provided with ignition electric nozzle subassembly (2), be provided with a plurality of side high-speed cameras (3) along circumference around ignition electric nozzle subassembly (2), the inboard bottom center department of darkroom box (1) is provided with central high-speed camera (4), side high-speed camera (3) all are connected with data acquisition treater (5) with central high-speed camera (4), ignition electric nozzle subassembly (2) are connected with ignition exciter (6).
2. A direct measurement device of spark profile according to claim 1, characterized in that the inside top of the dark room box (1) is provided with several radial sliding devices (7) pointing to the ignition nozzle assembly (2) along the circumference around the ignition nozzle assembly (2), the sliding ends of the radial sliding devices (7) and only the side high speed camera (3).
3. The direct measurement device of a spark profile according to claim 2, characterized in that the radial sliding device (7) comprises a radial sliding rail (71), a radial sliding seat (72), and a radial adjusting screw (73), the radial sliding rail (71) is arranged along a radial direction passing through the center of the top of the darkroom box (1), the radial sliding seat (72) is slidably arranged on the radial sliding rail (71), the bottom of the radial sliding seat (72) is provided with the side high-speed camera (3), one side of the radial sliding seat (72) is provided with the radial adjusting screw (73) extending to the outside of the darkroom box (1), and the radial adjusting screw (73) is in threaded connection with the side wall of the darkroom box (1).
4. A direct spark profile measuring device according to claim 3, wherein a transparent insulating glass is provided between the shooting end of the side high-speed camera (3) and the ignition nozzle assembly (2).
5. The direct measurement device for spark profiles according to claim 1, characterized in that a lifting device (8) is arranged at the center of the bottom inside the dark room box body (1), and a central high-speed camera (4) is arranged on the lifting end of the lifting device (8).
6. The direct measurement device for the spark profile according to claim 5, wherein the lifting device (8) comprises a lifting screw (81), a lifting upright post (82) and a lifting platform (83), the lifting screw (81) is vertically and threadedly installed at the center of the bottom of the inner side of the darkroom box body (1), the lifting platform (83) is rotatably clamped at the top end of the lifting screw (81), and a central high-speed camera (4) is arranged at the top of the lifting platform (83); one side of the lifting screw (81) is provided with a lifting upright post (82) in parallel, and the lifting upright post (82) is connected with a sliding hole on the lifting platform (83) in a sliding manner.
7. A direct measurement device of spark profile according to claim 6 characterized in that a transparent insulating glass is placed between the camera end of the central high speed camera (4) and the ignition nozzle assembly (2).
8. A direct spark profile measuring device according to any one of claims 1 to 7, wherein said ignition torch assembly (2) comprises an ignition torch holder (21), an ignition torch (22), an ignition cable (23), said ignition torch holder (21) being arranged at the top center of the darkroom casing (1), and one end of the ignition torch holder (21) extending downward to the inside of the darkroom casing (1), and the other end of the ignition torch holder (21) extending upward to the outside of the darkroom casing (1); the center department of ignition electric nozzle anchor clamps (21) is provided with the mounting hole, install ignition electric nozzle (22) in the mounting hole, be provided with elasticity top tight member (24) of fixed ignition electric nozzle (22) on the lateral wall of mounting hole, the one end of ignition electric nozzle (22) extends to the inboard of darkroom box (1), the other end of ignition electric nozzle (22) extends to the outside of darkroom box (1) and is connected with ignition exciter (6) through ignition cable (23).
9. The direct spark profile measuring device according to claim 8, wherein the elastic tightening member (24) comprises an elastic buckle arranged on the inner wall of the mounting hole, and a clamping groove for clamping the elastic buckle is arranged on the side wall of the ignition electric nozzle (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222154514.5U CN218443778U (en) | 2022-08-16 | 2022-08-16 | Spark appearance direct measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222154514.5U CN218443778U (en) | 2022-08-16 | 2022-08-16 | Spark appearance direct measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218443778U true CN218443778U (en) | 2023-02-03 |
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ID=85095684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222154514.5U Active CN218443778U (en) | 2022-08-16 | 2022-08-16 | Spark appearance direct measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218443778U (en) |
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2022
- 2022-08-16 CN CN202222154514.5U patent/CN218443778U/en active Active
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