Light source calibration device

Abstract

The utility model discloses a light source calibration device, comprising a cylinder body which is installed on a container objective lens of a device to be calibrated; the top cover is mounted at the top end of the cylinder body, and an opening part is formed in the top cover; the reference plate is in transmission connection with a motor through a transmission mechanism, and is driven by the motor to overturn in a vertical plane relative to the top cover so as to close or open the opening part; the transmission mechanism comprises a first transmission assembly and a second transmission assembly, the first transmission assembly comprises a transmission shaft and a first gear pair, and the second transmission assembly comprises a second gear pair and a rotating shaft; the transmission shaft is in transmission connection with the motor through the first gear pair, the rotating shaft is in transmission connection with the transmission shaft through the second gear pair, and the reference plate is mounted on the rotating shaft. Therefore, the light source calibration device can realize light source calibration under the condition of ensuring the normal work of the detection equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source calibration technical field, concretely relates to a light source calibration device. BACKGROUND

[0002] The near infrared detection equipment belongs to integrated equipment, wherein other components are contained besides the light source, the light source is located in the equipment, is mainly used for providing light for the optical fiber and the surrounding environment, and besides this, other components such as reflector, lens can be contained.In order to reduce the equipment dead weight and volume, the reference plate of the existing calibration light source is also very small, only applicable to the detection device of small spot light source;For the calibration of large spot light source, if the area of the reference plate is increased, the light of the near infrared detection equipment will be shielded, and the normal work of the near infrared detection equipment is affected.

[0003] Therefore, a light source calibration device is provided to realize light source calibration under the condition of ensuring the normal work of the detection equipment, which becomes a problem to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0004] Therefore, the utility model embodiment provides a light source calibration device to solve at least one technical problem in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model embodiment provides the following technical scheme:

[0006] The utility model provides a light source calibration device, which comprises:

[0007] The cylinder body is installed on the container objective lens of the equipment to be calibrated.

[0008] The top cover is installed on the top end of the cylinder body, and an opening part is formed in the top cover.

[0009] The reference plate is drivenly connected with the motor through a transmission mechanism and is turned over in the vertical plane relative to the top cover under the driving of the motor to close or open the opening part.

[0010] The transmission mechanism comprises a first transmission assembly and a second transmission assembly, the first transmission assembly comprises a transmission shaft and a first gear pair, and the second transmission assembly comprises a second gear pair and a rotating shaft;The transmission shaft is drivingly connected with the motor through the first gear pair, the rotating shaft is drivingly connected with the transmission shaft through the second gear pair, and the reference plate is installed on the rotating shaft.

[0011] In the non-calibration state, the reference plate is flipped down relative to the top cover, and the opening part of the top cover is in the open state, so that the light source of the device can normally emit and be collected by the optical fiber without affecting the normal work of the device; when calibration is needed, the motor is started, the output shaft of the motor transmits the rotation to the transmission shaft through the first gear pair, and the transmission shaft transmits the rotation to the rotating shaft through the second gear pair, so that the reference plate is flipped up until the opening part is closed, and the reference plate as one of the calibration components can participate in the calibration work. In this way, the light source calibration device can realize light source calibration while ensuring the normal work of the detection device.

[0012] In some embodiments, the motor is mounted on the inner side wall of the cylinder.

[0013] In some embodiments, the first gear pair comprises:

[0014] The first bevel gear is connected with the output shaft of the motor.

[0015] The second bevel gear is engaged with the first bevel gear, and the transmission shaft is connected with the second bevel gear.

[0016] In some embodiments, the reference plate is two, the second transmission assembly is two groups, the two reference plates are respectively driven by the corresponding second transmission assembly and the first transmission assembly, and the two reference plates are flipped synchronously under the drive of the motor.

[0017] In some embodiments, the second gear pair comprises:

[0018] The third bevel gear is connected with the transmission shaft.

[0019] The fourth bevel gear is engaged with the third bevel gear, and the rotating shaft is connected with the fourth bevel gear.

[0020] In some embodiments, the light source calibration device further comprises:

[0021] The support frame is fixed at one end of the cylinder and rotatably connected at the other end with the rotating shaft.

[0022] In some embodiments, the light source calibration device further comprises:

[0023] The connecting piece is fixed at one end of the rotating shaft and at the other end of the reference plate.

[0024] In some embodiments, the connecting piece is four, and every two connecting pieces form a group, and two groups of connecting pieces are respectively connected with two reference plates.

[0025] In some embodiments, the outer surfaces of the two reference plates are provided with adhesive plates.

[0026] In some embodiments, a spline is formed on the rotating shaft, and one end of the connecting piece is provided with a spline barrel, which is sleeved on the spline and forms a circumferential limit. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained from the provided drawings without creative labor.

[0028] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the present application, should still fall within the scope of the technical content disclosed by the present application.

[0029] Figure 1 Structure schematic view of the light source calibration device provided by the present application in a non-calibration state;

[0030] Figure 2 Structure schematic view of the light source calibration device provided by the present application in a calibration state;

[0031] Figure 3 Partial structure schematic view No. 1 of the light source calibration device provided by the present application;

[0032] Figure 4 Partial structure schematic view No. 2 of the light source calibration device provided by the present application;

[0033] Figure 5 Partial structure schematic view No. 3 of the light source calibration device provided by the present application;

[0034] Figure 6 Structure schematic view of the top cover in the light source calibration device provided by the present application;

[0035] Figure 7 Structure schematic view of the support frame in the light source calibration device provided by the present application;

[0036] Figure 8 Structure schematic view of the rotating shaft in the light source calibration device provided by the present application;

[0037] Figure 9 The structure diagram of the connecting piece in the light source calibration device provided by the utility model is shown in the figure;

[0038] Figure 10 The structure diagram of the bonding plate in the light source calibration device provided by the utility model is shown in the figure;

[0039] Figure 11 The structure diagram of one of the reference plates in the light source calibration device provided by the utility model is shown in the figure;

[0040] Figure 12 The structure diagram of another reference plate in the light source calibration device provided by the utility model is shown in the figure.

[0041] Explanation of reference signs:

[0042] 1 - cylinder;

[0043] 2 - top cover, 21 - opening part;

[0044] 3 - reference plate, 4 - motor, 5 - transmission shaft;

[0045] 6 - rotating shaft, 61 - spline;

[0046] 7 - first gear pair, 8 - second gear pair, 9 - support frame;

[0047] 10 - connecting piece, 101 - spline cylinder;

[0048] 11 - bonding plate. DETAILED DESCRIPTION

[0049] The embodiments of the utility model will be described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content of the specification. Obviously, the described examples are part of the embodiments of the utility model, rather than all the embodiments. Based on the examples in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0050] The light source calibration device provided by the utility model will be introduced below. Figures 1-12 The light source calibration device provided by the utility model will be introduced below.

[0051] In a specific embodiment, the light source calibration device provided by the utility model includes a cylinder 1, a top cover 2 and a reference plate 3. The cylinder 1 is installed on the container objective lens of the equipment to be calibrated. In this embodiment, the cylinder 1 can be provided with a plurality of connecting ears in the circumferential direction, and the cylinder 1 is installed on the container objective lens through the connecting ears. The connecting ears and the container objective lens can be detachably connected through bolt connection or the like. The cross section of the cylinder 1 can be circular, square or other structural forms, which can be adapted to the structure of the equipment to be calibrated.

[0052] The top cover 2 is installed at the top end of the cylinder 1, and an opening part 21 is formed in the top cover 2. The top cover 2 and the cylinder 1 can be fixed through buckle connection, bolt connection or the like. The opening shape and size of the opening part 21 are adapted to the reference plate 3, so that the reference plate 3 is flipped up to the position and the opening part 21 is closed.

[0053] The reference plate 3 is drivingly connected with the motor 4 through a transmission mechanism, and is flipped in the vertical plane relative to the top cover under the driving of the motor 4 to close or open the opening part 21. The motor 4 is installed on the inner side wall of the cylinder 1. The transmission mechanism includes a first transmission assembly and a second transmission assembly. The first transmission assembly includes a transmission shaft 5 and a first gear pair 7. The second transmission assembly includes a second gear pair 8 and a rotating shaft 6. The transmission shaft 5 is drivingly connected with the motor 4 through the first gear pair 7. The rotating shaft 6 is drivingly connected with the transmission shaft 5 through the second gear pair 8. The reference plate 3 is installed on the rotating shaft 6.

[0054] In the non-calibration operation state of the light source calibration device, the reference plate 3 is flipped downward relative to the top cover 2. At this time, the opening part 21 of the top cover 2 is in the open state, the light source of the equipment can normally emit and be collected by the optical fiber, and the normal work of the equipment is not affected. When calibration operation is needed, the motor 4 is started. The output shaft of the motor 4 transmits rotation to the transmission shaft 5 through the first gear pair 7. The transmission shaft 5 transmits rotation to the rotating shaft 6 through the second gear pair 8. The rotating shaft 6 drives the reference plate 3 to flip upward until the opening part 21 is closed. At this time, the reference plate 3 as one of the calibration components can participate in the calibration operation. In this way, the light source calibration device can realize light source calibration while ensuring the normal work of the detection equipment.

[0055] When the rotating shaft 6 and the motor 4 are not on the same side and the transmission direction needs to be changed, a bevel gear transmission mode can be adopted. Specifically, the first gear pair 7 includes a first bevel gear and a second bevel gear, and the second gear pair 8 includes a third bevel gear and a fourth bevel gear; wherein the first bevel gear is connected with the output shaft of the motor 4, the second bevel gear is engaged with the first bevel gear, and the transmission shaft 5 is connected with the second bevel gear; the third bevel gear is connected with the transmission shaft 5, the fourth bevel gear is engaged with the third bevel gear, and the rotating shaft 6 is connected with the fourth bevel gear. The taper of the four bevel gears can be selected according to the adjustment requirement of the transmission direction, which is not limited here.

[0056] In some embodiments, the reference plate 3 is two, the second transmission assembly is two groups, two reference plates 3 are respectively driven by the corresponding second transmission assembly and the first transmission assembly, and two reference plates 3 are synchronously flipped under the driving of the motor 4. It should be understood that the rotating shaft 6 and the second gear pair 8 are two groups, two second gear pairs 8 are respectively installed at both ends of the transmission shaft 5, two second gear pairs 8 are respectively installed on the rotating shaft 6, and two rotating shafts 6 are respectively installed on the reference plate 3.

[0057] Further, in order to improve the structural stability of the rotating shaft 6, the light source calibration device further comprises a support frame 9, one end of the support frame 9 is fixed to the cylinder 1, and the other end is rotatably connected with the rotating shaft 6. Specifically, the support frame 9 includes a bottom frame and a top frame installed on the bottom frame, and the bottom frame and the top frame are both L-shaped structures; the vertical plate of the bottom frame is connected with the cylinder 1, and the end of the horizontal plate of the bottom frame is provided with a connecting sleeve, the connecting sleeve is sleeved on the rotating shaft 6, and the rotating shaft 6 can rotate in the connecting sleeve; the vertical plate of the top frame is fixed at the bottom of the horizontal plate of the bottom frame, and the horizontal plate of the top frame is connected with the top cover 2.

[0058] In order to improve the connection convenience and reliability between the rotating shaft 6 and the reference plate 3, the light source calibration device further comprises a connecting piece 10, one end of the connecting piece 10 is fixed to the rotating shaft 6, and the other end is fixed to the reference plate 3. The connecting piece 10 is four, and every two connecting pieces 10 form a group, and two groups of connecting pieces 10 are respectively connected with two reference plates 3. The rotating shaft 6 is provided with a spline 61, one end of the connecting piece 10 is provided with a spline sleeve 101, the spline sleeve 101 is sleeved on the spline 61, and a circumferential limit is formed.

[0059] Further, the outer surfaces of the two reference plates 3 are provided with adhesive plates, the adhesive plates are bonded to the surfaces of the reference plates 3, threaded holes are formed in the bonding plates 11 for fixed connection with the connecting plates 10, so that the indirect connection of the reference plates 3 and the connecting plates 10 is realized, and the holes in the reference plates 3 are avoided. The two reference plates 3 have limiting tables, when the reference plates 3 are turned up to the position, the limiting tables of the two reference plates 3 abut against the limiters, so that the working position of the reference plates 3 is ensured.

[0060] In order to facilitate understanding, the following will take a use scene as an example to briefly describe the assembly and use process of the light source calibration device provided by the utility model.

[0061] Taking the calibration of a far infrared device with a large spot light source as an example, the light source calibration device comprises a cylinder body 1, two support frames 9, two rotating shafts 6, a transmission shaft 5, six bevel gears, a motor 4, four connecting plates 10, two adhesive plates, two reference plates 3 and a top cover 2. The cylinder body 1 is installed on the container sight glass by means of four mounting holes, the light source normally passes through the sight glass, and the optical fiber normally collects; when the automatic calibration light source device is installed, first, the two support frames 9 are respectively installed on the two rotating shafts 6, the middle sections of the two rotating shafts 6 are provided with spline 61 type clamping grooves, the connecting plates 10 are respectively installed at the clamping grooves (two connecting plates 10 are installed on each rotating shaft 6), the top ends of the two rotating shafts 6 are respectively provided with bevel gears, after the installation is completed, the two support frames 9 are fixed on the inner wall of the cylinder body 1, the motor 4 with the bevel gears is also fixedly installed on the inner wall, the remaining three bevel gears are installed on the transmission shaft 5, finally, the transmission shaft 5 is matched with the bevel gears on the motor 4 and the rotating shafts 6, the two adhesive plates are respectively adhered to the two reference plates 3, the adhesive plates are fixed with the connecting plates 10 through the self-provided threaded holes, finally, the top cover 2 is fixed on the support frame 9, the overall installation is completed, and when in use, the four mounting holes of the cylinder body 1 are used to fix the container sight glass.

[0062] In the detection process of near infrared, the light source needs to be calibrated according to the use requirement, the required part for calibration is generally the reference plate 3, when calibration is not required in normal use, the motor 4 works, so that the two reference plates 3 are turned down by 90 degrees, the light source normally passes through, and the optical fiber normally collects; when calibration is required, the motor 4 works, the rotating shafts 6 and the transmission shaft 5 are driven by the bevel gears, so that the reference plates 3 are turned by 90 degrees, the two reference plates 3 cooperate with each other, the light source irradiates on the reference plates 3, the optical fiber collects and calibrates, after the calibration is completed, the motor 4 works, the reference plates 3 are reset, the light source normally passes through, and the optical fiber normally collects.

[0063] The light source calibration device provided by the utility model is integrally machined from aluminum material, is light in weight, has a simple shell structure, can be adapted to cylindrical and other shaped light sources, can be slightly adjusted in the shell structure for non-cylindrical light sources, is simple to install in the overall internal components, has various processing forms, can be integrally processed, can be disassembled and processed and then welded, has a wide range of uses, can be adapted to large spot light sources, and can also be adapted to small spot light sources after being proportionally reduced.

[0064] The above detailed description of the embodiments of the utility model has further detailed the purposes, technical solutions and beneficial effects of the utility model, and it should be understood that the above is only a specific embodiment of the utility model and is not used to limit the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the utility model should be included in the protection scope of the utility model.

Claims

1. A light source calibration device, characterized in that: include: a barrel, the barrel being mounted on a container objective lens of a device to be calibrated; A top cover is mounted on the top of the cylinder and has an opening; a reference plate, the reference plate being connected to the motor through a transmission mechanism and being driven by the motor to flip relative to the top cover in a vertical plane to close or open the opening; The transmission mechanism includes a first transmission assembly and a second transmission assembly, the first transmission assembly includes a transmission shaft and a first gear pair, and the second transmission assembly includes a second gear pair and a rotating shaft; the transmission shaft is connected to the motor through the first gear pair, and the rotating shaft is connected to the transmission shaft through the second gear pair, and the reference plate is mounted on the rotating shaft.

2. The light source calibration device according to claim 1, characterized in that: The motor is mounted on the inner side wall of the cylinder.

3. The light source calibration device according to claim 1, wherein: The first gear pair comprises: a first bevel gear connected to an output shaft of the motor; A second bevel gear is meshed with the first bevel gear, and the transmission shaft is connected to the second bevel gear.

4. The light source calibration device according to any one of claims 1 to 3, characterized in that: There are two reference plates and two groups of second transmission components. The two reference plates are respectively connected to the first transmission component through corresponding second transmission components, and the two reference plates are synchronously flipped under the drive of the motor.

5. The light source calibration device according to claim 4, characterized in that: The second gear pair comprises: a third bevel gear connected to the transmission shaft; A fourth bevel gear is engaged with the third bevel gear, and the rotating shaft is connected to the fourth bevel gear.

6. The light source calibration device according to claim 4, characterized in that: Also includes: A support frame, one end of which is fixed to the cylinder, and the other end of which is rotatably connected to the rotating shaft.

7. The light source calibration device according to claim 4, characterized in that: Also includes: A connecting piece, one end of which is fixed to the rotating shaft, and the other end of which is fixed to the reference plate.

8. The light source calibration device according to claim 7, characterized in that: There are four connecting pieces, and each two connecting pieces form a group. The two groups of connecting pieces are respectively connected to the two reference plates.

9. The light source calibration device according to claim 4, characterized in that: The outer surfaces of the two reference plates are both provided with adhesive plates.

10. The light source calibration device according to claim 7, characterized in that: The rotating shaft is provided with a spline, and one end of the connecting piece is provided with a spline cylinder. The spline cylinder is sleeved on the spline to form a circumferential limit.

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