CN109709670A - A kind of single prism scanning means of achievable indexing rotation - Google Patents
A kind of single prism scanning means of achievable indexing rotation Download PDFInfo
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- CN109709670A CN109709670A CN201811585354.1A CN201811585354A CN109709670A CN 109709670 A CN109709670 A CN 109709670A CN 201811585354 A CN201811585354 A CN 201811585354A CN 109709670 A CN109709670 A CN 109709670A
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- sheave
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Abstract
The present invention relates to a kind of single prism scanning means of achievable indexing rotation, including prism structure, Geneva mechanism, sheave crank mechanism and rotation axle assembly, motor and running part, sheave crank mechanism support construction.When work, the stepper motor drives crank rotation by connection motor shaft, so that sheave and prism be driven to index rotation.Compared with prior art, the advantages that present invention has structure simple, compact, stable drive, cheap is realized, it can be achieved that scanning imagery for viewing field of camera to the exhaustively panorama observation of viewing field of camera situation and shooting.Field for needing to obtain sufficient and complete view field image information has application value.
Description
Technical field
The invention belongs to precision optics to scan field, be related to a kind of single prism scanning mechanism, can be real more particularly, to one kind
Now index single prism scanning means of rotation.
Background technique
First technology (ancestral after patents such as cutting edges of a knife or a sword, application number 03129234.8, June 13 2003 applying date " satellite trajectory light
Learn simulator ") propose the different motion combination that rotation biprism is realized using the cooperation gear drive of motor group, realize that simulation is defended
The requirement of star relative motion.But the motor combination drive scheme and control system provided is more complex, there are motor driven precision
It influences each other and the problems such as difficulty in arrangement.
(patents such as Yang Jianzhong, application number: 200910022757.X, October 21 2009 applying date are " double for first technology
The optical imaging splicing device of ccd image splicing detector ") propose image splicing device, by a fixed wedge and one
The composition of horizontally moveable wedge.And this patent is related to the Rotation of prism.
First technology (" realize thick by the patents such as Li Anhu, application number 201210439061.9, November 7 2012 applying date
The prism mechanical device of smart two-stage scan ") in rotating electric machine by worm and gear movement mechanism drive prism and inside and outside frame it is total
At circle rotation is realized, there is large transmission ratio, advantages of simple structure and simple, but there are back lashes, it is difficult to eliminate backhaul mistake
Difference.
First technology (patents such as Li Anhu, application number: 201310072421.0, March 7 2013 applying date " synchronous belt
Drive rotary prism device ") it proposes using synchronous belt driving prism rotation.But the appearance and size of device is larger；Understructure compared with
For complexity, it is unfavorable for producing and processing；And with the extension of use time because of belt tension, can there are problems that belt slack, it is right
Device precision produces bigger effect.
Summary of the invention
Turn it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide indexing can be achieved in one kind
Dynamic single prism scanning means is driven using stepper motor direct-coupling, realizes intermittent rotary by Geneva mechanism.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of single prism scanning means of achievable indexing rotation, including prism structure, crank mechanism and rotation axle assembly,
Motor transmission mechanism, sheave crank mechanism support construction.
Wherein:
Crank mechanism and rotation axis rigid connection, rotation axis and Geneva mechanism are by rolling bearing by sole plate supports.
The prism structure includes that nylon block between O-ring, prism retaining ring, prism, prism retaining ring and prism, screw thread are kept off
Nylon block between circle, threaded collar and prism.Threaded collar is connected by screw thread with sheave, and O-ring, prism retaining ring, prism are logical
It crosses in the inner hole of threaded collar indentation sheave, realizes the fixation of prism structure.Sheave equally plays the role of frame.
Geneva mechanism includes sheave, large-diameter roller bearing, big bearing bearing cap, big bearing bearing cap screw.Large-diameter roller bearing
Inner ring is positioned by the shaft shoulder of sheave, and outer ring is fixed by big bearing bearing cap；Big bearing bearing cap passes through big bearing bearing cap spiral shell
Nail is connected on the big bearing bearing seat of honour and bearing base.
Sheave crank mechanism and rotation axle assembly include crank, roller bearing, roller bearing attachment screw, connection motor axle screw, connect
Connect motor axle key, connection motor shaft, connection encoder axis, connection encoder axle key, connection encoder axle screw, the small axis of rolling
It holds, small bearing bearing cap, small bearing bearing cap screw.Roller bearing is connect by roller bearing attachment screw with crank.It is logical to connect motor shaft
Connection motor axle screw is crossed to be connected with crank.Small rolling bearing inner ring is by the shaft shoulder positioning of connection motor shaft, and outer ring is by small axis
Bearing cap is held to fix；Small bearing bearing cap is connected on bearing base by small bearing cap screw.Connection encoder axis passes through company
Encoder axle screw is connect to be connected with crank.
Motor and running part include motor coupler, stepper motor, electric machine support-motor attachment screw, electric machine support,
Electric machine support-bearing block attachment screw, encoder bracket-bearing block attachment screw, encoder bracket, encoder coupler, volume
Code device, encoder bracket-encoder attachment screw.Motor coupler with connect motor axis connection, it is real to pass through connection motor axle key
Existing power transmission；Encoder coupler with connect encoder axis connection, by connection encoder axle key realize encoder to shaft
The record of revolving speed.
Sheave crank supporting mechanism includes the big bearing bearing seat of honour, bearing base, connecting bottom board bearing base.Big bearing cap
Bearing block and bearing base are linked together by big bearing bearing cap.
Compared with prior art, the invention has the following advantages that
(1) the invention belongs to precision optics scanning fields and camera to be used in conjunction with, and carry out Image Acquisition.The present invention can be real
Now indexing rotation, intermittent movement of every realization, camera can shoot a frame image.Prism of the invention is realized after often turning over 30 °
Primary interval.Therefore after one cycle, camera can shoot 12 frame images.And this 12 frame image is after image mosaic,
It can get the overall picture of viewing field of camera, realize the scanning to viewing field of camera.Compared to indexing mechanism is not used, two width of shooting are saved
The time of prism corner is adjusted between different images.
(2) it is driven using stepper motor direct-coupling, without transmission device, thus structure can be made more compact.
(3) to realize that indexing function uses Geneva mechanism, Geneva mechanism structure is simple, outer dimension is small, runs smoothly, machine
Tool is high-efficient, thus structure can be made more compact, and making whole device, cost is relatively low.
(4) angular encoder is used, to realize the closed-loop control to prism revolving speed.
Detailed description of the invention
Fig. 1 is the outline drawing for single prism scanning mechanism that indexing rotation can be achieved in the present invention.Wherein: 1 (a) be main view, 1
It (b) is side view；
Fig. 2 is the internal structure chart for single prism scanning mechanism that indexing rotation can be achieved in the present invention, i.e. the A-A of Fig. 1 (a) is cutd open
View；
Fig. 3 is the structure chart of Geneva mechanism of the present invention；
Fig. 4 is sheave crank mechanism of the present invention and the structure chart for rotating axle assembly；
Fig. 5 is the schematic diagram of sheave structure of the present invention；
Fig. 6 is single prism scanning mechanism that indexing can be achieved in the present invention, removes sheave crank supporting mechanism, big bearing bearing
End cap 12,23, small bearing bearing cap screw 10, big bearing bearing cap screw 4, electric machine support-bearing block attachment screw 34, coding
After device bracket-bearing block attachment screw 35, prism mechanism, and the A-A hatching 1 to sheave crank mechanism along Fig. 1 (a) carries out half
Three-dimensional axonometric drawing after cuing open；
Fig. 7 be the present invention can be achieved indexing single prism scanning mechanism, remove electric machine support-bearing block attachment screw 34,
After encoder bracket-bearing block attachment screw 35, prism mechanism, and along the A-A hatching 1 of Fig. 1 (a) carry out it is half-sectional after three-dimensional
Axonometric drawing；
Fig. 8 is the overall appearance three-dimensional axonometric drawing for single prism scanning mechanism that indexing can be achieved in the present invention；
Appended drawing reference:
1 is the big bearing bearing seat of honour, and 2 be big bearing bearing cap, and 3 be large-diameter roller bearing, and 4 big bearing bearing cap screws, 5 are
O-ring, 6 be prism retaining ring, 7 for prism retaining ring and prism between nylon block, 8 be roller bearing, and 9 be roller bearing attachment screw, small bearing axis
Holding lid screw 10,11 is small bearing bearing cap, and 12 be connection motor axle screw, and 13 be connection motor shaft, and 14 be small rolling bearing,
15 be bearing base, and 16 be crank, and 17 be small rolling bearing, and 18 be connection encoder axis, and 19 be to connect encoder axle screw, 20
It is small bearing bearing cap for small bearing bearing cap screw, 21,22 is connect bearing base, and 23 be big bearing bearing cap, and 24 be big
Bearing bearing cap screw, 25 be prism, 26 between threaded collar and prism nylon block, 27 be threaded collar, and 28 be the big axis of rolling
It holds, 29 be sheave, and 30 be motor coupler, and 31 be stepper motor, and 32 be electric machine support-motor attachment screw, and 33 be motor branch
Frame, 34 be electric machine support-bearing block attachment screw, and 35 be encoder bracket-bearing block attachment screw, and 36 be encoder bracket,
37 be encoder coupler, and 38 be encoder, and 39 be encoder bracket-encoder attachment screw, and 40 be to connect motor axle key, 41
To connect encoder axle key.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
Referring to attached drawing 1 (a), this prism mechanism can be connect using bolt with pedestal by the boss of connection bearing base 22,
Realize the fixation of the prism mechanism.
Referring to attached drawing 1 (b), the motor and running part include motor coupler 30, stepper motor 31, motor branch
Frame-motor attachment screw 32, electric machine support-bearing block attachment screw 34, encoder bracket-bearing block attachment screw 35, coding
Device bracket 36, encoder coupler 37, encoder 38, encoder bracket-encoder attachment screw 39.Motor coupler 30 and company
The connection of motor shaft 13 is connect, power transmission is realized by connection motor axle key 39；Encoder coupler 37 with connect encoder axis 18
Connection realizes encoder 38 to the record of shaft revolving speed by connection encoder axle key 41.
Referring to attached drawing 2, the sheave crank supporting mechanism include the big bearing bearing seat of honour 1, bearing base 15, connection bottom
Plate bearing base 22.Big bearing cap bearing block 1 and bearing base 15 are linked together by big bearing bearing cap 2, big bearing axis
It holds the seat of honour 1 and connection bearing base 15 is linked together by big bearing bearing cap 23.
Referring to attached drawing 3, the Geneva mechanism includes sheave 29, large-diameter roller bearing 3,28, big bearing bearing cap 2,23, big axis
Bearing cap screw 4,24 is held, 3 inner ring of large-diameter roller bearing is positioned by the shaft shoulder of sheave 29, and outer ring is fixed by big bearing bearing cap 2；
Big bearing bearing cap 2 is connected on the big bearing bearing seat of honour 1 and bearing base 15 by big bearing bearing cap screw 4；It is big to roll
28 inner ring of bearing is positioned by the shaft shoulder of sheave 29, and outer ring is fixed by big bearing bearing cap 23；Big bearing bearing cap 23 passes through big
Bearing bearing cap screw 24 is connected on the big bearing bearing seat of honour 1 and connection bearing base 22.
Referring to attached drawing 3, the prism structure includes Buddhist nun between O-ring 5, prism retaining ring 6, prism 25, prism retaining ring and prism
Nylon block 26 between imperial block 7, threaded collar 27, threaded collar and prism.O-ring 5 passes through the positioning of hole end surface convex shoulder, rib in sheave 29
6 stationary positioned of mirror retaining ring.Between prism retaining ring 6 and prism 25 separately by nylon block 7 between prism retaining ring and prism, positioning edge
While mirror 25, avoids prism 25 and contacted with prism retaining ring 6 and bring abrasion.Threaded collar 25 passes through screw thread and sheave 29
It is connected, the internal screw thread of the external screw thread and 29 inner hole of sheave of threaded collar 25 screws, and passes through Buddhist nun between threaded collar 27 and prism
Imperial block 26 realizes the mediate contact with prism, realizes the fixation of prism, avoid prism 25 and contact and bring with threaded collar 27
Abrasion.Nylon block 26 can guarantee between nylon block 7 and threaded collar and prism between flexible prism retaining ring and prism simultaneously
Effective fixation of prism 25.
Referring to attached drawing 4, the sheave crank mechanism and rotation axle assembly include crank 16, roller bearing 8, roller bearing attachment screw 9,
Connect motor axle screw 12, connection motor axle key 39, connection motor shaft 13, connection encoder axis 18, connection encoder axle key 41,
Connect encoder axle screw 19, small rolling bearing 14,17, small bearing bearing cap 11,21, small bearing bearing cap screw 10,20.Rolling
Axis 8 is connect by roller bearing attachment screw 9 with crank 16.It connects motor shaft 13 and passes through connection motor axle screw 12 and 16 phase of crank
Even.Small 14 inner ring of rolling bearing by the shaft shoulder positioning of connection motor shaft 13, fixed by small bearing bearing cap 11 by outer ring；Small bearing
Bearing cap 11 is connected on bearing base 15 by small bearing cap screw 10；Small 17 inner ring of rolling bearing passes through connection encoder axis
18 between centers positioning, outer ring are fixed by small bearing bearing cap 21；Small bearing bearing cap 21 is connected to by small bearing cap screw 20
It connects on bearing base 15.Connection encoder axis 18 is connected by connecting encoder axle screw 19 with crank 16.
Fig. 5 is the schematic diagram of sheave structure of the present invention.It is also the key that sheave structure of the present invention realizes indexing scanning function
One of.Only sheave 29, crank 16, roller bearing 8 are indicated in figure.
In conjunction with Fig. 1-Fig. 5, the specific indexing rotary course of the present embodiment list prism mechanism are as follows: stepper motor 31 passes through shaft coupling
Device passes motion to connection motor shaft 13, and then drives and connect the rigidly connected rotation of crank 16 of motor shaft.Crank 9 turns over
After certain angle, enter in the radial slot of sheave 29 with the rigidly connected roller bearing 8 of crank 16.Crank 9 continues to rotate, roller bearing 8 with
The radial slot of sheave 29 contacts and sheave 29 is pushed to rotate.After crank 9 turns over certain angle again, roller bearing 8 is detached from the diameter of sheave 29
To slot.The Locking arc of crank 9 and the arc contact of sheave 29, so that sheave 29 be made to stop operating.Because prism 25 and sheave 29 are same
When rotate, it is thus achieved that the indexing of prism rotates.
The present embodiment can realize the scanning imagery for viewing field of camera, realize that exhaustively panorama is seen to viewing field of camera situation
It surveys and shoots.Field for needing to obtain sufficient and complete view field image information has application value.In addition, to realize rib
The rotation requirement of 30 °/time of mirror, therefore the radial slot number of sheave 29 is 360 °/30 °=12.
Claims (6)
1. a kind of single prism scanning means of achievable indexing rotation characterized by comprising
Prism structure, including prism (25)；
Geneva mechanism, including sheave (29), the prism (25) are fixedly connected with the inner hole of sheave (29), the sheave
(29) periphery is equipped with radial slot and circular arc, and the radial slot and circular arc are evenly spaced on；
Crank mechanism and rotation axle assembly, crank (16) and connection motor shaft (13) including coaxial rigid connection, the song
Handle (16) one end is equipped with roller bearing (8), and the other end is equipped with Locking arc, and the crank (16) and sheave (29) index the company of being rotatably assorted
It connects；
Motor transmission mechanism, including stepper motor (31), the stepper motor (31) with to connect motor shaft (13) coaxially connected；
Sheave crank mechanism support construction is used to support Geneva mechanism and crank (16), fixes the shaft core position of the two；
When work, the stepper motor (31) drives crank (16) rotation by connection motor shaft (13), to drive sheave
(29) it is rotated with prism (25) indexing.
2. a kind of single prism scanning means of achievable indexing rotation according to claim 1, which is characterized in that described
Prism structure further includes O-ring (5), prism retaining ring (6), threaded collar (27), the threaded collar (27) by screw thread with
Sheave (29) is connected, and the O-ring (5), prism retaining ring (6) and prism (25) are pressed into sheave by threaded collar (27)
(29) in inner hole, the fixation of prism structure is realized.
3. a kind of single prism scanning means of achievable indexing rotation according to claim 2, which is characterized in that described
Prism structure further includes nylon block (26) between nylon block (7), threaded collar and prism between prism retaining ring and prism.
4. a kind of single prism scanning means of achievable indexing rotation according to claim 1, which is characterized in that described
Geneva mechanism further includes large-diameter roller bearing (3,28) and big bearing bearing cap (2,23), the sheave crank mechanism support construction
Including the big bearing bearing seat of honour (1), bearing base (15) and connection bearing base (22)；
The big bearing cap bearing block (1) and bearing base (15) are linked together by big bearing bearing cap (2,23), institute
The inner ring for the large-diameter roller bearing (3,28) stated is positioned by the shaft shoulder of sheave (29), and outer ring is solid by big bearing bearing cap (2,23)
Fixed, the big bearing bearing cap (2,23) is connected on the big bearing bearing seat of honour (1) and bearing base (15,22).
5. a kind of single prism scanning means of achievable indexing rotation according to claim 1, which is characterized in that described
Crank mechanism and rotation axle assembly further include connection encoder axis (18), small rolling bearing (14,17) and small bearing bearing cap
(11,21), small rolling bearing (14) inner ring is by the shaft shoulder positioning of connection motor shaft (13), and outer ring is by small bearing bearing
It covers (11) to fix, the small bearing bearing cap (11,21) is connected on bearing base (15), the connection encoder axis
(18) it is connected with crank (16).
6. a kind of single prism scanning means of achievable indexing rotation according to claim 5, which is characterized in that described
Motor transmission mechanism further includes motor coupler (30), encoder coupler (37) and encoder (38), the motor shaft coupling
Device (30) is connected with motor shaft (13) are connect, and is passed through connection motor axle key (40) and is realized power transmission, the encoder shaft coupling
Device (37) is connected with encoder axis (18) are connect, and realizes encoder (38) to shaft revolving speed by connection encoder axle key (41)
Record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811585354.1A CN109709670A (en) | 2018-12-24 | 2018-12-24 | A kind of single prism scanning means of achievable indexing rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811585354.1A CN109709670A (en) | 2018-12-24 | 2018-12-24 | A kind of single prism scanning means of achievable indexing rotation |
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| Publication Number | Publication Date |
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| CN109709670A true CN109709670A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811585354.1A Pending CN109709670A (en) | 2018-12-24 | 2018-12-24 | A kind of single prism scanning means of achievable indexing rotation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031949A (en) * | 2019-04-19 | 2019-07-19 | 同济大学 | A kind of rotating mirror system of single power source driving polygon prism |
| CN110108304A (en) * | 2019-05-24 | 2019-08-09 | 厦门市计量检定测试院 | It is a kind of for examining and determine the prism positioning device and its control method of total station |
| CN113267253A (en) * | 2021-05-21 | 2021-08-17 | 中国科学院光电技术研究所 | Area array splicing imaging detection device based on step-by-step scanning mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2653225Y (en) * | 2003-09-29 | 2004-11-03 | 梁军锋 | Geneva mechanism |
| CN103149686A (en) * | 2013-03-07 | 2013-06-12 | 同济大学 | Synchronous belt drive rotary prism device |
| CN106249405A (en) * | 2016-10-10 | 2016-12-21 | 同济大学 | Axicon light-beam scanner |
-
2018
- 2018-12-24 CN CN201811585354.1A patent/CN109709670A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2653225Y (en) * | 2003-09-29 | 2004-11-03 | 梁军锋 | Geneva mechanism |
| CN103149686A (en) * | 2013-03-07 | 2013-06-12 | 同济大学 | Synchronous belt drive rotary prism device |
| CN106249405A (en) * | 2016-10-10 | 2016-12-21 | 同济大学 | Axicon light-beam scanner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031949A (en) * | 2019-04-19 | 2019-07-19 | 同济大学 | A kind of rotating mirror system of single power source driving polygon prism |
| CN110031949B (en) * | 2019-04-19 | 2020-08-18 | 同济大学 | Rotating mirror system for driving polygon prism by single power source |
| CN110108304A (en) * | 2019-05-24 | 2019-08-09 | 厦门市计量检定测试院 | It is a kind of for examining and determine the prism positioning device and its control method of total station |
| CN110108304B (en) * | 2019-05-24 | 2020-12-22 | 厦门市计量检定测试院 | Prism positioning device for calibrating total station and control method thereof |
| CN113267253A (en) * | 2021-05-21 | 2021-08-17 | 中国科学院光电技术研究所 | Area array splicing imaging detection device based on step-by-step scanning mode |
| CN113267253B (en) * | 2021-05-21 | 2023-08-11 | 中国科学院光电技术研究所 | Area array splicing imaging detection device based on step-and-scan mode |
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Application publication date: 20190503 |
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