CN209707061U - A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket - Google Patents
A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket Download PDFInfo
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- CN209707061U CN209707061U CN201920872597.7U CN201920872597U CN209707061U CN 209707061 U CN209707061 U CN 209707061U CN 201920872597 U CN201920872597 U CN 201920872597U CN 209707061 U CN209707061 U CN 209707061U
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- mirror
- axis paraboloidal
- paraboloidal mirror
- schlieren
- support arm
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Abstract
Disappear gravity three-dimensional regulation bracket the utility model discloses a kind of schlieren off axis paraboloidal mirror, comprising: pedestal is placed with a U-shaped support arm thereon；Curved boom is rotated, is connected on U-shaped support arm；It is provided between the rotation curved boom and U-shaped support arm and pitches the pitching adjusting mechanism adjusted for off axis paraboloidal mirror；Mirror holder is rotated, is connected on rotation curved boom by rotary connection plate；Rolling regulating mechanism is provided between the rotation mirror holder and rotation curved boom；Off axis paraboloidal mirror is connected on the rotation mirror holder；For the yaw adjustment mechanism of off axis paraboloidal mirror yaw adjustment, it is arranged in pedestal, and the yaw adjustment mechanism is connect with U-shaped support arm.The schlieren off axis paraboloidal mirror of the utility model disappears, and gravity three-dimensional regulation bracket is simple with structure, and degree of regulation is high, effectively reduces gravity influence, the high advantage of schlieren imaging quality.
Description
Technical field
The utility model relates to hydrodynamics to measure field, and in particular to a kind of for observing flow boundary layer air, flow field
The off axis paraboloidal mirror of schlieren disappears gravity three-dimensional regulation bracket.
Background technique
In hydrodynamics related experiment, schlieren has very extensive utilization, can be used for observing the boundary of air-flow
Layer, burning, shock wave, the intracorporal cold and hot convection current of gas and wind-tunnel or water hole flow field.
In the use process of schlieren, the image quality of schlieren is other than being affected by, device itself
The performance of component also has larger impact to final measurement result, wherein schlieren master lens system be exactly a biggish interference because
Element.In general, the primary mirror in system mostly uses common spherical reflector, there can be difference, drag down picture quality, and off axis paraboloid mirror
Mirror can effectively eliminate difference.Therefore, change common spherical reflector into off axis paraboloidal mirror, can be improved schlieren at image quality
Amount.Although off axis paraboloidal mirror has lot of advantages, strict requirements, off axis paraboloidal mirror also proposed to its assembling & adjusting system
Adjusting bracket must satisfy following characteristics:
1, the bus of off axis paraboloidal mirror and optical axis must be in same levels, therefore off axis paraboloid mirror mirror support is necessary
Has rolling function.
2, off axis paraboloid mirror mirror support will also have the regulatory function of yaw and pitching simultaneously.
3, off axis paraboloid mirror mirror support will guarantee that light path is constant in adjustment process.
4, the self gravity that eliminate off axis paraboloidal mirror, using a kind of special dress between off axis paraboloidal mirror and bracket
With mode.
It is the branch with three-dimensional regulation function that can eliminate off axis paraboloidal mirror gravity by the support Design for carrying primary mirror
Frame can satisfy the adjustment requirement of off axis paraboloidal mirror so that off axis paraboloidal mirror is able to carry out pitching, deflection, rolling adjusting,
Meanwhile the influence of off axis paraboloidal mirror self gravity is eliminated, degree of regulation can be greatly improved, so that the image matter of schlieren
Amount is significantly improved.
Utility model content
One purpose of the utility model is to solve at least the above problems and/or defect, and provide and at least will be described later
The advantages of.
In order to realize these purposes according to the present utility model and other advantages, a kind of off-axis parabolic of schlieren is provided
Face mirror disappears gravity three-dimensional regulation bracket, comprising:
Pedestal is placed with a U-shaped support arm thereon；
Curved boom is rotated, is connected on U-shaped support arm；Be provided between the rotation curved boom and U-shaped support arm for from
Axis paraboloidal mirror pitches the pitching adjusting mechanism adjusted；
Mirror holder is rotated, is connected on rotation curved boom by rotary connection plate；Between the rotation mirror holder and rotation curved boom
It is provided with rolling regulating mechanism；Off axis paraboloidal mirror is connected on the rotation mirror holder；
For the yaw adjustment mechanism of off axis paraboloidal mirror yaw adjustment, it is arranged in pedestal；And the yaw adjustment
Mechanism is connect with U-shaped support arm.
Preferably, the pitching adjusting mechanism is placed on the side of U-shaped support arm, and the pitching adjusting mechanism includes
One the first worm screw being mutually matched and the first worm gear, the first worm gear are connected with rotation curved boom, and first worm screw one end is connected with first
Round adjusting handle.
Preferably, the rotation mirror holder includes: rotary connection plate, is provided with frame, and the frame passes through screw
It is connected with mirror cell, is fixed with off axis paraboloidal mirror in mirror cell.
Preferably, the rolling regulating mechanism is placed among rotation curved boom, and the rolling regulating mechanism includes one
The second worm screw being mutually matched and the second worm gear, the second worm gear are connected by screw to rotary connection plate, and second worm screw one end connects
It is connected to the second round adjusting handle.
Preferably, the yaw adjustment mechanism includes: arc bump, is arranged in pedestal, and the arc bump
It is connected with U-shaped support arm；The edge of pedestal side is arranged in first wire nut；Second screw is arranged in the pedestal other side
Edge；First screw rod and the second screw rod are each passed through first wire nut and the second screw is in contact with the two sides of arc bump, the
The end of one screw rod and the second screw rod is connected separately with third circle adjusting handle and the 4th round adjusting handle；
Wherein, the inner concave of the arc bump is connected with pedestal arc convex.
Preferably, the connection type of the arc bump and U-shaped support arm are as follows: be arranged on the U-shaped support arm bottom plate
There is square hole, the protrusion part of arc bump is closely fastened with square hole.
Preferably, described rotation curved boom one end is fixedly connected with the first worm gear in pitching adjusting mechanism by screw,
The rotation curved boom other end is to be rotatably connected with U-shaped support arm.
Preferably, the rotation curved boom other end and U-shaped support arm are rotatably connected mode are as follows: are connected by first bearing
It connects.
Preferably, the rotary connection plate also passes through second bearing and 3rd bearing is connected on rotation curved boom, and the
Two bearings and 3rd bearing are symmetrically distributed in rolling regulating mechanism two sides.
The utility model is include at least the following beneficial effects:
(1) common spherical mirror is changed to off axis paraboloidal mirror, difference can be effectively eliminated, improve image quality.
(2) elastic glue is smeared to connect with mirror cell in off axis paraboloidal mirror mirror embryo position, can make off axis paraboloid mirror
The gravity of mirror avoids off axis paraboloidal mirror from being deformed by gravity along glue-line uniform decomposition, improves the image quality of schlieren system.
(3) the three-dimensional regulation bracket with rolling, yaw, pitching, degree of regulation is high, and has self-locking function.
(4) the three-dimensional regulation supporting structure in the utility model is simple, and operation is easy, and is suitable for all kinds of optical path adjusting systems
System.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention:
Fig. 1 is that the disappear overall structure of gravity three-dimensional regulation bracket of schlieren off axis paraboloidal mirror described in the utility model is shown
It is intended to；
Fig. 2 is the configuration schematic diagram of pitching and deflection regulating mechanism in the utility model；
Fig. 3 is the configuration schematic diagram of rolling regulating mechanism in the utility model；
Fig. 4 is that mirror cell disappears gravity principle structural schematic diagram in the utility model；
Fig. 5 is the utility model in the base structural schematic diagram；
Fig. 6 is U-shaped support arm structural diagram of base plate in the utility model；
Fig. 7 is arc bump structural schematic diagram in the utility model；
Fig. 8 is arc bump and U-shaped support arm attachment structure schematic diagram in the utility model；
Specific embodiment:
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
Embodiment 1:
A kind of schlieren off axis paraboloidal mirror of the utility model as shown in Figs. 1-3 disappears gravity three-dimensional regulation bracket,
Include:
Pedestal 1 is placed with U-shaped support arm 2 thereon；Curved boom 3 is rotated, is connected on U-shaped support arm 2；The rotation is curved
It is provided between arm 3 and U-shaped support arm 2 and pitches the pitching adjusting mechanism 4 adjusted for off axis paraboloidal mirror；Mirror holder 5 is rotated,
It is connected on rotation curved boom 3 by rotary connection plate 51；Rolling adjusting is provided between the rotation mirror holder 5 and rotation curved boom 3
Mechanism 6；Off axis paraboloidal mirror 7 is connected on the rotation mirror holder 5；Yaw adjustment machine for off axis paraboloidal mirror yaw adjustment
Structure 8 is arranged in pedestal 1；And the yaw adjustment mechanism 8 is connect with U-shaped support arm 2.In this technical solution, when need
When debugging to some direction, pitching adjusting mechanism 4, pitch angle, that is, off axis paraboloidal mirror 7 of rotation-controlled curved boom 3 are adjusted
Pitch angle；The roll angle of roll angle, that is, off axis paraboloidal mirror 7 of 6 rotation-controlled mirror holder 5 of rolling regulating mechanism；Partially
The yaw angle i.e. yaw angle of off axis paraboloidal mirror 7 of U-shaped support arm 2 can be changed in boat regulating mechanism 8, reaches needed for test
It is required that pitching, rolling, yaw adjustment mechanism are placed on different components, avoid generating interference between each other, improve and adjust essence
Degree, and in adjustment process, it is convenient and efficient without being adjusted in particular order.
In the above-mentioned technical solutions, as shown in Fig. 1~2, the pitching adjusting mechanism 4 is placed on the one of U-shaped support arm 2
Side, the pitching adjusting mechanism 4 include the first worm screw 41 being mutually matched and the first worm gear 42, the first worm gear 42 and rotation curved boom
3 are connected, and 41 one end of the first worm screw is connected with the first round adjusting handle 43.In this way, rotation first is round adjusts hand
When taking turns 43, the rotation of the first worm screw 41 drives the rotation of the first turbine 42, to change bowing for the i.e. off axis paraboloidal mirror 7 of rotation curved boom 3
Elevation angle degree.
In the above-mentioned technical solutions, it as shown in figure 4, the rotation mirror holder 5 includes: rotary connection plate 51, is provided with
Frame 52 has been connected by screw to mirror cell 53 in the frame 52, off axis paraboloidal mirror 7 is fixed in mirror cell 53；Wherein, described
Off axis paraboloidal mirror 7 is fixed in mirror cell 53 by way of 54 position viscose of intermediate mirror embryo.It in this way, can will be from
Axis paraboloidal mirror 7 is fixed on rotation mirror holder 5, while the gravity of off axis paraboloidal mirror 7 can be allowed along rubberised layer uniform decomposition,
Influence of the gravity to 7 face type of off axis paraboloidal mirror is eliminated, image quality is improved.
In the above-mentioned technical solutions, as shown in Figures 1 to 3, the rolling regulating mechanism 6 is placed among rotation curved boom 3,
The rolling regulating mechanism 6 includes the second worm screw 61 being mutually matched and the second worm gear 62, the second worm gear 62 and rotary connection plate
51 are connected by screw to, and 61 one end of the second worm screw is connected with the second round adjusting handle 63.In this way, the second circle of rotation
When shape adjusting handle 63, the rotation of the second worm screw 61 drives the rotation of the second turbine 62, to change, rotary connection plate 51 is i.e. off-axis to be thrown
The roll angle of object plane mirror 7.
In the above-mentioned technical solutions, as shown in Fig. 1~7, the yaw adjustment mechanism 8 includes: arc bump 11, setting
In pedestal 1, and the arc bump 11 is connected with U-shaped support arm 2；The side of 1 side of pedestal is arranged in first wire nut 81
Edge；Second screw 82, is arranged in the edge of 1 other side of pedestal；First screw rod 83 and the second screw rod 84 are each passed through first
Mother 81 and the second screw 82 are in contact with the two sides of arc bump 11, and the end of the first screw rod 83 and the second screw rod 84 is separately connected
There are third circle adjusting handle 85 and the 4th adjusting handle 86；Wherein, the inner concave 113 of the arc bump 11 and pedestal arc
Convex surface 12 is connected, and when arc bump 11 slides, pedestal arc convex 12 can limit the motion profile of arc bump 11
System, avoids because of the excessive damage yaw adjustment mechanism 8 of rotational angle.In this way, oneself of yaw adjustment mechanism 8 may be implemented
Lock function, right-hand man cooperate, and so that arc bump 11 is in the state clamped by the first screw rod 83 and the second screw rod 84, simultaneously
And when rotating third circle adjusting handle 85 and the 4th round adjusting handle 86 round about, arc bump 11 is slided, U-shaped branch
Brace 2 is that yawing rotation is done on off axis paraboloidal mirror vertex, and then changing U-shaped support arm 2 is off axis paraboloid mirror around base shaft 24
The yaw angle of mirror 7 realizes yaw adjustment.
In the above-mentioned technical solutions, as shown in Figure 2 and Figure 8, the connection type of the arc bump 11 and U-shaped support arm 2
Are as follows: square hole 21 is provided on the U-shaped support arm bottom plate 23, the protrusion part 112 of arc bump 11 and square hole 21 are close
It fastens.In this way, connecting component structure can be made simpler.
In the above-mentioned technical solutions, as shown in Fig. 1~2, in described rotation 3 one end of curved boom and pitching adjusting mechanism 4 the
One worm gear 42 is fixedly connected by screw, and rotation 3 other end of curved boom is to be rotatably connected with U-shaped support arm 2.Using this side
Formula, when the first round adjusting handle 43 of rotation setting, the first turbine 42 is rotated with, thus realize rotation curved boom 3 i.e. from
The change of 7 pitch angle of axis paraboloidal mirror.
In the above-mentioned technical solutions, as shown in Figures 1 to 3,3 other end of rotation curved boom rotatably connects with U-shaped support arm 2
Connect mode are as follows: connect by first bearing 22.
In the above-mentioned technical solutions, as shown in figure 3, the rotation mirror holder also passes through second bearing 31 and 3rd bearing 32 connects
It connects on rotation curved boom 3, and second bearing 31 and 3rd bearing 32 are symmetrically distributed in 6 two sides of rolling regulating mechanism.Using this
Mode can allow rotation mirror holder 5 is stronger to be connected on rotation curved boom 3, avoid rotation mirror holder 5 to rolling regulating mechanism 6
Extruding is generated, degree of regulation is improved, meanwhile, the roll angle of rotation mirror holder 5 can be limited, optical axis and off axis paraboloidal mirror are avoided
Bus generates relatively large deviation.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility model
Schlieren with off axis paraboloidal mirror disappear gravity three-dimensional regulation bracket application, modifications and variations to those skilled in the art come
Say it is obvious.
Although the embodiments of the present invention have been announced as above, not only in the description and the implementation
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (9)
- The gravity three-dimensional regulation bracket 1. a kind of schlieren off axis paraboloidal mirror disappears characterized by comprisingPedestal is placed with a U-shaped support arm thereon；Curved boom is rotated, is connected on U-shaped support arm；It is provided between the rotation curved boom and U-shaped support arm for throwing off axis Object plane mirror pitches the pitching adjusting mechanism adjusted；Mirror holder is rotated, is connected on rotation curved boom by rotary connection plate；It is arranged between the rotation mirror holder and rotation curved boom There is rolling regulating mechanism；Off axis paraboloidal mirror is connected on the rotation mirror holder；For the yaw adjustment mechanism of off axis paraboloidal mirror yaw adjustment, it is arranged in pedestal；And the yaw adjustment mechanism It is connect with U-shaped support arm.
- The gravity three-dimensional regulation bracket 2. schlieren off axis paraboloidal mirror as described in claim 1 disappears, which is characterized in that described Pitching adjusting mechanism is placed on the side of U-shaped support arm, the pitching adjusting mechanism include the first worm screw being mutually matched and First worm gear, the first worm gear are connected with rotation curved boom, and first worm screw one end is connected with the first round adjusting handle.
- The gravity three-dimensional regulation bracket 3. schlieren off axis paraboloidal mirror as described in claim 1 disappears, which is characterized in that described Rotating mirror holder includes: rotary connection plate, is provided with frame, and the frame has been connected by screw to mirror cell, has fixed in mirror cell There is off axis paraboloidal mirror.
- The gravity three-dimensional regulation bracket 4. schlieren off axis paraboloidal mirror as described in claim 1 disappears, which is characterized in that described Rolling regulating mechanism is placed among rotation curved boom, and the rolling regulating mechanism includes second worm screw being mutually matched and the Two worm gears, the second worm gear are connected by screw to rotary connection plate, and second worm screw one end is connected with the second round adjusting handle.
- The gravity three-dimensional regulation bracket 5. schlieren off axis paraboloidal mirror as described in claim 1 disappears, which is characterized in that described Yaw adjustment mechanism includes: arc bump, is arranged in pedestal, and the arc bump is connected with U-shaped support arm；First The edge of pedestal side is arranged in screw；The edge of the pedestal other side is arranged in second screw；First screw rod and second Screw rod is each passed through first wire nut and the second screw is in contact with the two sides of arc bump, the end of the first screw rod and the second screw rod It is connected with third circle adjusting handle and the 4th round adjusting handle；Wherein, the inner concave of the arc bump is connected with pedestal arc convex.
- The gravity three-dimensional regulation bracket 6. schlieren off axis paraboloidal mirror as claimed in claim 5 disappears, which is characterized in that described The connection type of arc bump and U-shaped support arm are as follows: be provided with square hole on the U-shaped support arm bottom plate, arc bump it is convex Part is closely fastened with square hole out.
- The gravity three-dimensional regulation bracket 7. schlieren off axis paraboloidal mirror as claimed in claim 2 disappears, which is characterized in that described Rotation curved boom one end is fixedly connected with the first worm gear in pitching adjusting mechanism by screw, the rotation curved boom other end and U-shaped branch Brace is to be rotatably connected.
- The gravity three-dimensional regulation bracket 8. schlieren off axis paraboloidal mirror as claimed in claim 7 disappears, which is characterized in that described The rotation curved boom other end and U-shaped support arm are rotatably connected mode are as follows: are connected by first bearing.
- The gravity three-dimensional regulation bracket 9. schlieren off axis paraboloidal mirror as claimed in claim 4 disappears, which is characterized in that described Rotary connection plate also passes through second bearing and 3rd bearing is connected on rotation curved boom, and second bearing and 3rd bearing are symmetrically divided Cloth is in rolling regulating mechanism two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872597.7U CN209707061U (en) | 2019-06-12 | 2019-06-12 | A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872597.7U CN209707061U (en) | 2019-06-12 | 2019-06-12 | A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket |
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| Publication Number | Publication Date |
|---|---|
| CN209707061U true CN209707061U (en) | 2019-11-29 |
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| CN201920872597.7U Active CN209707061U (en) | 2019-06-12 | 2019-06-12 | A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186642A (en) * | 2019-06-12 | 2019-08-30 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket |
| CN111175781A (en) * | 2020-01-16 | 2020-05-19 | 中国科学院国家空间科学中心 | Multi-angle multispectral spaceborne ionosphere detection device |
-
2019
- 2019-06-12 CN CN201920872597.7U patent/CN209707061U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186642A (en) * | 2019-06-12 | 2019-08-30 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of schlieren off axis paraboloidal mirror disappears gravity three-dimensional regulation bracket |
| CN110186642B (en) * | 2019-06-12 | 2023-12-29 | 中国空气动力研究与发展中心高速空气动力研究所 | Off-axis parabolic mirror gravity-eliminating three-dimensional adjusting bracket for schlieren instrument |
| CN111175781A (en) * | 2020-01-16 | 2020-05-19 | 中国科学院国家空间科学中心 | Multi-angle multispectral spaceborne ionosphere detection device |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200901 Address after: 621000, No. two, south section of No. 6 Ring Road, Fucheng District, Sichuan, Mianyang Patentee after: High speed Aerodynamics Research Institute of China Aerodynamics Research and Development Center Address before: 621000, No. two, south section of No. 6 Ring Road, Fucheng District, Sichuan, Mianyang Co-patentee before: JINZHOU HANGXING PHOTOELECTRIC EQUIPMENT Co.,Ltd. Patentee before: High speed Aerodynamics Research Institute of China Aerodynamics Research and Development Center |