CN111487726B - Miniaturized multichannel optical fiber rotary connector - Google Patents
Miniaturized multichannel optical fiber rotary connector Download PDFInfo
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- CN111487726B CN111487726B CN202010482261.7A CN202010482261A CN111487726B CN 111487726 B CN111487726 B CN 111487726B CN 202010482261 A CN202010482261 A CN 202010482261A CN 111487726 B CN111487726 B CN 111487726B
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- collimator
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 description 9
- 230000008054 signal transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/34—Optical coupling means utilising prism or grating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a miniaturized multipath optical fiber rotary connector, which comprises a core, wherein the core comprises a rotary end outgoing line assembly, a fixed end outgoing line assembly, a transmission mechanism and a prism assembly; the rotary end outgoing line assembly and the fixed end outgoing line assembly are respectively arranged at two ends of the transmission mechanism, the transmission mechanism comprises an inner shaft, and the prism assembly is arranged in the inner shaft of the transmission mechanism; the prism assembly comprises a special-shaped dove prism and a prism sleeve, and the special-shaped dove prism is arranged in the prism sleeve; the special-shaped dove prism comprises an incidence surface and an emergence surface which are opposite to each other on two sides, wherein an included angle of 90 degrees is formed by extension lines of the incidence surface and the emergence surface, the bottom between the incidence surface and the emergence surface is a horizontal refraction surface, the upper side of the refraction surface is a cylindrical non-working surface, the incidence surface and the emergence surface of light are working surfaces on two sides, the light is incident from the incidence surface on one side, and after being refracted by the refraction surface on the bottom, the light is emitted from the emergence surface on the opposite side; the cylindrical non-working surface of the special-shaped dove prism, the prism sleeve and the inner shaft are coaxial.
Description
Technical Field
The invention belongs to the field of optical signal transmission, and particularly relates to a miniaturized multipath optical fiber rotary connector.
Background
The optical fiber rotary connector (FORJ: fiber Optic Rotary Joint) is also called an optical fiber slip ring, an optical fiber rotary joint, an optical hinge and the like, and is used for solving the problem of optical signal transmission between opposite rotary parts, namely ensuring that the optical signal transmission is not interrupted due to rotation. Compared with the traditional electric connector, the optical fiber rotary connector has the following advantages: the light is used for signal transmission, so that no electromagnetic leakage exists, the confidentiality is good, and the electromagnetic interference is avoided; the device has the advantages of no contact transmission, no abrasion and long service life, and can reach 500 ten thousand revolutions. Friction-free, can be used in flammable and explosive environments; the transmission bandwidth is far greater than that of the electric connector, and the transmission bandwidth can be doubled when the electric connector is matched with the wavelength division multiplexer; the allowable rotation speed is high, and can reach tens of thousands of revolutions per minute. The optical fiber rotary connector can realize 360-degree rotary transmission of optical signals from the fixed part to the rotary part.
Fiber optic rotary connectors can be divided into single, dual and multi-channel according to the number of channels. The multichannel optical fiber rotary connector has large capacity for transmitting signals and can realize bidirectional transmission, but has larger volume and relatively complex structure. In the prior art, the realization method of the multipath optical fiber rotary connector adopts the optical transmission principle of the dove prism, and utilizes the corresponding transmission mechanism to realize the speed ratio of 2:1, but along with the wide application of the optical fiber rotary connector, some industries such as miniaturized radars, airborne equipment, robots, intelligent manufacturing and the like put new requirements on the volume and the weight of the multipath optical fiber rotary connector, and in the prior art, the common size and the weight of some multipath optical fiber rotary connectors are too large to meet the requirements of miniaturized equipment, so the requirements of small and light products are increasingly urgent.
Disclosure of Invention
Aiming at the problems and the defects existing in the prior art, the miniaturized multi-path optical fiber rotary connector designed by the invention solves the problem that the multi-path optical fiber rotary connector cannot meet the requirements of certain miniaturized equipment on the size and weight and the severity thereof.
The invention is realized by the following technical scheme:
a miniaturized multi-path optical fiber rotary connector comprises a core, wherein the core comprises a rotary end outgoing line assembly, a fixed end outgoing line assembly, a transmission mechanism and a prism assembly; the rotary end outgoing line assembly and the fixed end outgoing line assembly are respectively arranged at two ends of the transmission mechanism, the transmission mechanism comprises an inner shaft, and the prism assembly is arranged in the inner shaft of the transmission mechanism; the prism assembly comprises a special-shaped dove prism and a prism sleeve, and the special-shaped dove prism is arranged in the prism sleeve; the special-shaped dove prism comprises an incidence surface and an emergence surface which are opposite to each other on two sides, an included angle of 90 degrees is formed by extension lines of the incidence surface and the emergence surface, a horizontal refraction surface is arranged at the bottom between the incidence surface and the emergence surface, a cylindrical non-working surface is arranged on the upper side of the refraction surface, the incidence surface and the emergence surface of light are working surfaces on two sides, the light is incident from the incidence surface on one side, and after being refracted by the refraction surface at the bottom, the light is emitted from the emergence surface on the opposite side; the cylindrical non-working surface, the prism sleeve and the inner shaft of the special-shaped dove prism are coaxial.
Further, the transmission mechanism comprises a left bearing end cover, a left nut, a left bearing, a left check ring, a left bevel gear, a small bearing, a screw, a small gear shaft, an inner shaft, a right bevel gear, a right check ring, a right bearing, a right nut and a right bearing end cover; the inner shaft is transversely arranged in the center of the transmission mechanism; the left end and the right end of the inner shaft are respectively connected with a rotary end outgoing line assembly and a fixed end outgoing line assembly; the left bearing comprises 2 bearings which are arranged between the inner shaft and the left bevel gear, the 2 left bearings are separated by a left check ring, and the left bearing end cover is arranged at the left side of the left bearing through a left nut tightening gap; the right bearing comprises 2 right bearings, the 2 right bearings are arranged between the inner shaft and the right bevel gear, the 2 right bearings are separated by a right check ring, and the right bearings are tightly clamped by a right nut; the bevel pinion is connected with the outer ring of the small bearing, the inner ring of the small bearing is arranged on the small gear shaft, the small gear shaft is limited by a screw, and the small gear shaft is arranged in a hole of the inner shaft through interference fit.
Furthermore, the left bevel gear and the right bevel gear are large bevel gears which are symmetrically arranged, the tooth ratio of the large bevel gear to the small bevel gear is 3:1, and the modulus is 0.2-0.3.
Furthermore, a gap is not required to be adjusted between the prism sleeve and the inner shaft.
Further, the left side bearing and the right side bearing adopt thin-wall bearings.
Further, the rotary end outgoing line assembly comprises a movable end optical fiber collimator and a movable end collimator fixing end cover, and the movable end collimator fixing end cover is connected with the left bearing end cover; the movable-end optical fiber collimator is arranged on the movable-end collimator fixed end cover.
Further, the fixed end outgoing line assembly comprises a fixed end collimation end cover, a fixed end collimator fixed end cover and a fixed end optical fiber collimator; the fixed-end optical fiber collimator is arranged on a fixed end cover of the fixed-end collimator, the fixed end cover of the fixed-end collimator is arranged on a fixed-end collimating end cover, and the fixed-end collimating end cover is arranged on a right-side bearing end cover of the transmission mechanism through a positioning step.
Furthermore, the movable-end optical fiber collimator and the fixed-end optical fiber collimator are all tiny optical fiber collimators.
The detachable shell comprises a shifting fork, a rotary sealing ring, a flange, a shell and a fixed-end wire outlet end cover, wherein the shifting fork is connected with a left-side bearing end cover of a transmission mechanism to serve as a wire outlet end cover of an optical fiber rotary end, and can drive the rotary-end wire outlet assembly to rotate; the flange is connected with the shell, and the mounting position of the rotary sealing ring is designed on the flange; the shell is connected with the fixed-end collimation end cover to serve as a shell body of the fixed-end outgoing line assembly; the fixed end collimation end cover is connected with the right bearing end cover of the transmission mechanism.
The invention has the beneficial effects that:
The miniaturized multipath optical fiber rotary connector provided by the invention adopts the special-shaped dove prism, the special-shaped dove prism can realize the superposition of an optical axis and a rotation axis through mechanical positioning, and a dove prism adjustment system is not needed; meanwhile, a small-module bevel gear planetary gear train and a thin-wall bearing are adopted to design a 2:1 transmission mechanism with a small structure; the miniature optical fiber collimator is combined to improve the optical fiber path number, so that the design of a miniaturized and light-weight optical fiber rotary connector is realized, the optical fiber path number can reach 4 paths, compared with the 4 paths of rotary connectors in the prior art, the outer diameter size can be reduced by more than 60%, the outer diameter of a shell can reach within 25mm, and the weight can be reduced by 90% and can reach within 300 g; after the detachable shell part is removed, the optical fiber rotary connector can be independently used as a multi-path optical fiber rotary connector, and the external dimension and the weight can be further reduced.
Drawings
FIG. 1 is a general assembly view of a miniaturized multi-way fiber optic rotary connector of the present invention;
FIG. 2 is a core assembly view of the present invention;
FIG. 3 is a detail view of the transmission mechanism of the present invention;
FIG. 4 is a front view of a shaped dove prism of the present invention;
FIG. 5 is a top view of a shaped dove prism of the present invention;
FIG. 6 is a side view of a shaped dove prism of the present invention;
Wherein: 1. a shifting fork; 2. rotating the sealing ring; 3. a flange; 4. a shell 5 and a transmission mechanism; 6. a fixed end collimation end cover; 7. a fixed end collimator fixed end cover; 8. a fixed-end outgoing end cover; 9. a moving end optical fiber collimator; 10. a movable end collimator fixing end cover; 11. a shaped dove prism; 12. a prism sleeve; 13. a fixed-end optical fiber collimator; 14. a left bearing end cap; 15. a left side nut; 16. a left bearing; 17. a left check ring; 18. a left bevel gear; 19. bevel pinion; 20. a small bearing; 21. a screw; 22. a pinion shaft; 23. an inner shaft; 24. right bevel gear; 25. a right check ring; 26. a right bearing; 27. a right side nut; 28. the right bearing end cap.
Detailed Description
The preferred mechanism and method of motion implementation of the present invention is further described below with reference to the accompanying drawings and detailed description.
As shown in fig. 1-3, a miniaturized multi-fiber rotary connector includes a core portion and a detachable shell portion.
The core part comprises a rotary end outgoing line assembly, a fixed end outgoing line assembly, a transmission mechanism 5 and a prism assembly; the rotary end outgoing line assembly and the fixed end outgoing line assembly are respectively arranged at two ends of the transmission mechanism 5, and the prism assembly is arranged at the center of the transmission mechanism 5.
The rotary end outgoing line assembly is arranged at the left side of the core part and is arranged at the left side of the transmission mechanism 5, and comprises a movable end optical fiber collimator 9 and a movable end collimator fixing end cover 10; the movable-end optical fiber collimator 9 is arranged on the movable-end collimator fixing end cover 10.
The fixed end outgoing line assembly is arranged on the right side of the core part and is arranged on the right side of the transmission mechanism 5 and comprises a fixed end collimation end cover 6, a fixed end collimator fixed end cover 7 and a fixed end optical fiber collimator 13; the fixed-end optical fiber collimator 13 is arranged on the fixed-end collimator end cover 7, and the fixed-end collimator end cover 7 is arranged on the fixed-end collimator end cover 6.
The movable-end optical fiber collimator 9 and the fixed-end optical fiber collimator 13 are micro optical fiber collimators and are respectively fixed on the movable-end collimator fixing end cover 10 and the fixed-end collimator fixing end cover 7 in a cementing mode. Because the micro optical fiber collimator has small outer diameter, the arrangement of optical fibers within 4 paths can be realized within a limited clear aperture
The transmission mechanism 5 is a bevel gear planetary gear train and comprises a left bearing end cover 14, a left nut 15, a left bearing 16, a left check ring 17, a left bevel gear 18, a small bevel gear 19, a small bearing 20, a screw 21, a small gear shaft 22, an inner shaft 23, a right bevel gear 24, a right check ring 25, a right bearing 26, a right nut 27 and a right bearing end cover 28.
The inner shaft 23 is transversely arranged at the center of the transmission mechanism 5; the left and right ends of the inner shaft 23 are respectively connected with a rotary end outgoing line assembly and a fixed end outgoing line assembly.
On the side close to the rotary end outgoing line assembly, the left bearing 16 includes 2, installed between the inner shaft 23 and the left bevel gear 18, and the 2 left bearing 16 are separated by the left retainer ring 17, and then the left bearing end cap 14 is disposed on the left side of the left bearing 16 by tightening the gap with the left nut 15, that is, the left bearing end cap 14, the left bevel gear 18, and the left retainer ring 17 are connected with the outer ring of the left bearing 16.
Correspondingly, on the side close to the fixed end outlet assembly, the right bearing 26 comprises 2 right bearing rings 25 which are installed between the inner shaft 23 and the right bevel gear 24, the 2 right bearing rings 26 are separated by the right side retainer ring 25, and then the right bearing end cover 28 is arranged on the right side of the right bearing 26, namely, the right bearing end cover 28, the right bevel gear 24 and the right side retainer ring 25 are connected with the outer ring of the right bearing 26 through the right side nut 27 and the clearance.
In the middle section of the inner shaft 23, the bevel pinion 19 is connected with the outer ring of the pinion bearing 20, the inner ring of the pinion bearing 20 is mounted on the pinion shaft 22 and is limited by the screw 21, and the pinion shaft 22 is mounted in the hole of the inner shaft 23 by interference fit.
The movable end collimator fixing end cover 10 of the rotary end outlet assembly is connected with the left bearing end cover 14; left bevel gear 18 and right bevel gear 24 are respectively meshed with bevel pinion 19; the fixed end alignment end cover 6 of the fixed end outgoing line assembly is arranged on the right bearing end cover 28 of the transmission mechanism 5 through a positioning step, so that the coaxial precision is ensured, and the end screw is fixed.
The prism assembly comprises a special-shaped dove prism 11 and a prism sleeve 12, wherein the special-shaped dove prism 11 is glued in the prism sleeve 12.
As shown in fig. 4-6, the special-shaped dove prism 11 is a dove prism with a non-working surface in a cylindrical shape, namely: the special-shaped dove prism 11 comprises an incidence surface and an emergence surface which are opposite to each other on two sides, an included angle of 90 degrees is formed by extension lines of the incidence surface and the emergence surface, a refraction surface is arranged horizontally at the bottom between the incidence surface and the emergence surface, a cylindrical non-working surface is arranged on the upper side of the refraction surface, the incidence surface and the emergence surface of light are arranged on two sides and are working surfaces, the light is incident from the incidence surface on one side, and after being refracted by the refraction surface at the bottom, the light is emitted from the emergence surface on the opposite side. The central axis of the cylindrical non-working surface of the special-shaped dove prism 11 is highly coincident with the optical axis of the dove prism, and compared with the traditional dove prism, the effective clear aperture of the dove prism can be improved by 10%.
The special-shaped dove prism 11 is glued in the prism sleeve 12, the prism sleeve 12 is installed in the inner shaft 23 and is fixed on the right side nut 27 through screws, and no installation gap exists between the special-shaped dove prism 11 and the prism sleeve 12. Here, it is required that the center of the cylindrical non-working surface of the shaped dove prism 11 is concentric with the center of the prism sleeve 12, and the prism sleeve 12 is concentric with the inner shaft 23, that is, the cylindrical non-working surface of the shaped dove prism 11, the prism sleeve 12, and the inner shaft 23 are concentric.
When the special-shaped dove prism is installed, the cylindrical surface of the special-shaped dove prism 11 can be used as a mechanical positioning surface, the central axis of the cylindrical surface and the optical axis of the dove prism can be guaranteed to be overlapped in height through high-precision machining, then a central hole of the prism sleeve 12 is formed according to the cylindrical surface of the special-shaped dove prism 11, high-precision matching is guaranteed, and the special-shaped dove prism is glued in the prism sleeve 12; the prism sleeve 12 is concentric with the inner shaft 23 by mechanical positioning and is fixed to the right nut 27 by screws. Thus, the non-adjustment assembly of the special-shaped dove prism 11 can be realized, the assembly efficiency can be improved, and the adjustment difficulty can be reduced; meanwhile, the size of the special-shaped dove prism 11 can be increased, the clear aperture is further enlarged, and a gap between the prism sleeve 12 and the inner shaft 23 is not required to be adjusted. In the prior art, the adjusting gap is generally about 1mm, and the size of the dove prism can be increased or the outer diameter size of the multi-path optical fiber rotary connector can be reduced by removing the gap.
The detachable shell comprises a shifting fork 1, a rotary sealing ring 2, a flange 3, a shell 4 and a fixed-end wire outlet end cover 8.
The shifting fork 1 is connected with a left bearing end cover 14 of the transmission mechanism 5 and is used as an outgoing end cover of the optical fiber rotating end, and meanwhile, the rotating end outgoing assembly can be driven to rotate; the flange 3 is connected with the shell 4, and the mounting position of the rotary sealing ring 2 is designed on the flange 3; the shell 4 is connected with a fixed-end collimation end cover 6 to serve as a shell body of a fixed-end outgoing line component; the fixed end collimation end cap 6 is connected with a right bearing end cap 28 of the transmission mechanism 5.
The miniaturized multi-path optical fiber rotary connector of the embodiment can be used as a multi-path optical fiber rotary connector independently if the detachable shell part is removed, and referring to fig. 2, the overall dimension and weight of the miniaturized multi-path optical fiber rotary connector can be further reduced, and the central hole of the previous device can be used as a shell to uniformly consider sealing and wiring in the severe application occasions requiring dimension and weight.
The working process of the miniaturized multi-path optical fiber rotary connector comprises the following steps:
The prism assembly is driven to rotate by a bevel gear planetary gear train, and the bevel gear planetary gear train comprises a large bevel gear with the same tooth number, namely a left bevel gear 18, a right bevel gear 24 and one or more small planetary bevel gears, namely a small bevel gear 19; the central axes of the left bevel gear 18 and the right bevel gear 24 coincide with the central axis of the optical fiber rotary connector, while the central axes of the bevel pinions 19 are distributed at 90 degrees to the central axes of the left bevel gear 18 and the right bevel gear 24.
When the rotary end wire outlet assembly rotates, the left bevel gear 18 is driven to rotate, but the right bevel gear 24 is fixed, the left bevel gear 18 rotates, the small bevel gear 19 is driven to revolve around the central axes of the left bevel gear 18 and the right bevel gear 24 while rotating around the central axes of the left bevel gear 18 and the right bevel gear 24, the small bevel gear 19 rotates and drives the small gear shaft 22 to synchronously rotate around the central axis of the optical fiber rotary connector through the small bearing 20 and the screw 21, so that the small gear shaft 22 drives the inner shaft 23 to rotate, the inner shaft 23 drives the prism assembly to rotate, and the rotating speed is half of the rotating speed of the rotary end wire outlet assembly, namely the transmission ratio of the bevel gear planetary gear train is 2:1.
The left bevel gear 18 and the right bevel gear 24 which belong to large bevel gears are designed by adopting small modulus gears with the small bevel gear 19, and the modulus is 0.2-0.3; the left bevel gear 18 and the right bevel gear 24 are symmetrically designed, the tooth ratio of the bevel gear to the bevel pinion 19 is 3:1, and meanwhile, the left bearing 16 and the right bearing 26 are thin-wall bearings, so that the outer diameter size of the transmission mechanism can be effectively reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it should be understood that the invention is not limited to the preferred embodiments, but is capable of modification and equivalents to some of the features described in the foregoing embodiments, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The miniaturized multipath optical fiber rotary connector is characterized by comprising a core part, wherein the core part comprises a rotary end outgoing line assembly, a fixed end outgoing line assembly, a transmission mechanism and a prism assembly; the rotary end outgoing line assembly and the fixed end outgoing line assembly are respectively arranged at two ends of the transmission mechanism, the transmission mechanism comprises an inner shaft, and the prism assembly is arranged in the inner shaft of the transmission mechanism; the prism assembly comprises a special-shaped dove prism and a prism sleeve, and the special-shaped dove prism is arranged in the prism sleeve; the special-shaped dove prism comprises an incidence surface and an emergence surface which are opposite to each other on two sides, an included angle of 90 degrees is formed by extension lines of the incidence surface and the emergence surface, a horizontal refraction surface is arranged at the bottom between the incidence surface and the emergence surface, a cylindrical non-working surface is arranged on the upper side of the refraction surface, the incidence surface and the emergence surface of light are working surfaces on two sides, the light is incident from the incidence surface on one side, and after being refracted by the refraction surface at the bottom, the light is emitted from the emergence surface on the opposite side; the cylindrical non-working surface, the prism sleeve and the inner shaft of the special-shaped dove prism are coaxial;
The transmission mechanism comprises a left bearing end cover, a left nut, a left bearing, a left check ring, a left bevel gear, a small bearing, a screw, a small gear shaft, an inner shaft, a right bevel gear, a right check ring, a right bearing, a right nut and a right bearing end cover; the inner shaft is transversely arranged in the center of the transmission mechanism; the left end and the right end of the inner shaft are respectively connected with a rotary end outgoing line assembly and a fixed end outgoing line assembly; the left bearing comprises 2 bearings which are arranged between the inner shaft and the left bevel gear, the 2 left bearings are separated by a left check ring, and the left bearing end cover is arranged at the left side of the left bearing through a left nut tightening gap; the right bearing comprises 2 right bearings, the 2 right bearings are arranged between the inner shaft and the right bevel gear, the 2 right bearings are separated by a right check ring, and the right bearings are tightly clamped by a right nut; the small bevel gear is connected with the outer ring of the small bearing, the inner ring of the small bearing is arranged on the small gear shaft and limited by a screw, and the small gear shaft is arranged in the hole of the inner shaft through interference fit;
The rotary end outgoing line assembly comprises a movable end optical fiber collimator and a movable end collimator fixing end cover, and the movable end collimator fixing end cover is connected with the left bearing end cover; the movable-end optical fiber collimator is arranged on the movable-end collimator fixed end cover;
The fixed end outgoing line assembly comprises a fixed end collimation end cover, a fixed end collimator fixed end cover and a fixed end optical fiber collimator; the fixed-end optical fiber collimator is arranged on a fixed end cover of the fixed-end collimator, the fixed end cover of the fixed-end collimator is arranged on a fixed-end collimating end cover, and the fixed-end collimating end cover is arranged on a right bearing end cover of the transmission mechanism through a positioning step;
The detachable shell comprises a shifting fork, a rotary sealing ring, a flange, a shell and a fixed-end outgoing end cover, wherein the shifting fork is connected with a left-side bearing end cover of a transmission mechanism to serve as an outgoing end cover of an optical fiber rotary end, and can drive the rotary-end outgoing assembly to rotate; the flange is connected with the shell, and the mounting position of the rotary sealing ring is designed on the flange; the shell is connected with the fixed-end collimation end cover to serve as a shell body of the fixed-end outgoing line assembly; the fixed end collimation end cover is connected with the right bearing end cover of the transmission mechanism.
2. The miniaturized multi-way optical fiber rotary connector according to claim 1, wherein the left side bevel gear and the right side bevel gear are large bevel gears symmetrically arranged, the tooth ratio of the large bevel gears to the small bevel gears is 3:1, and the modulus is 0.2-0.3.
3. The miniaturized multi-way fiber optic rotary connector of claim 1, wherein no adjustment gap is required between the prism sleeve and the inner shaft.
4. The miniaturized multiple fiber optic rotary connector of claim 1, wherein the left and right bearings are thin walled bearings.
5. The miniaturized multiple fiber optic rotary connector of claim 1, wherein the moving end fiber optic collimator and the fixed end fiber optic collimator each employ a tiny fiber optic collimator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010482261.7A CN111487726B (en) | 2020-05-29 | 2020-05-29 | Miniaturized multichannel optical fiber rotary connector |
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| CN202010482261.7A CN111487726B (en) | 2020-05-29 | 2020-05-29 | Miniaturized multichannel optical fiber rotary connector |
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| CN111487726B true CN111487726B (en) | 2024-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114002779A (en) * | 2021-04-28 | 2022-02-01 | 中国电子科技集团公司第十四研究所 | Machining method and application of collimator fixing end cover |
| CN113866900B (en) * | 2021-04-28 | 2023-02-28 | 中国电子科技集团公司第十四研究所 | Multi-path optical fiber rotary connector |
| CN113341504B (en) * | 2021-05-21 | 2022-05-17 | 中国电子科技集团公司第十四研究所 | Adverse environment resistant multi-path optical fiber rotary connector |
| CN113325521A (en) * | 2021-05-21 | 2021-08-31 | 中国电子科技集团公司第十四研究所 | Super multichannel optical fiber rotary connector |
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| CN101013186A (en) * | 2007-02-13 | 2007-08-08 | 中航光电科技股份有限公司 | Optical fibre rotary collector |
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| CN212160149U (en) * | 2020-05-29 | 2020-12-15 | 中国电子科技集团公司第十四研究所 | Miniaturized multichannel optical fiber rotary connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7142747B2 (en) * | 2003-08-12 | 2006-11-28 | Moog Inc. | Fiber optic rotary joint and associated alignment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101013186A (en) * | 2007-02-13 | 2007-08-08 | 中航光电科技股份有限公司 | Optical fibre rotary collector |
| CN103837940A (en) * | 2014-02-27 | 2014-06-04 | 中国电子科技集团公司第八研究所 | Multichannel optical fiber rotary connector structure and manufacturing method |
| CN206892401U (en) * | 2017-01-06 | 2018-01-16 | 中国电子科技集团公司第十四研究所 | A kind of Multi-path fiber optic rotary joint |
| CN212160149U (en) * | 2020-05-29 | 2020-12-15 | 中国电子科技集团公司第十四研究所 | Miniaturized multichannel optical fiber rotary connector |
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