CN101566709B - Single-passage straight-through fiber rotation connector - Google Patents
Single-passage straight-through fiber rotation connector Download PDFInfo
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- CN101566709B CN101566709B CN2009100503457A CN200910050345A CN101566709B CN 101566709 B CN101566709 B CN 101566709B CN 2009100503457 A CN2009100503457 A CN 2009100503457A CN 200910050345 A CN200910050345 A CN 200910050345A CN 101566709 B CN101566709 B CN 101566709B
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Abstract
The invention relates to a single-passage straight-through fiber rotation connector, comprising a stator bracket, a rotor bracket, a stator internal sleeve and a rotor internal sleeve; the stator bracket and the rotor bracket are discs with a flange and a central hole respectively; the flange of the stator external sleeve with a flange is fixedly connected with the flange of the stator bracket bya screw; the internal ring of the stator external sleeve is rotatablely connected with the external ring of the rotor bracket by two bearings; the central holes of the stator bracket and the rotor bracket are fixedly provided with a stator flange and a rotor flange respectively; the central holes of the stator flange and the rotor flange are internally sheathed by a position-limited sleeve which moves correspondingly to the rotor flange; and the stator internal sleeve and the rotor internal sleeve are arranged in the position-limited sleeve. The single-passage straight-through fiber rotation connector has simple structure, convenient installation and low cost, needs no complex optical system, has no photoelectric conversion system, avoids the signal delay due to photoelectric conversion, has compact structure and is convenient for batch production.
Description
Technical field
The present invention relates to a kind of single-passage straight-through fiber rotation connector, can be used for the rotation transitional link of light signal in the optical communication system, belong to optical communication field.
Background technology
Fibre Optical Communication Technology have the broadband, at a high speed, characteristics such as high capacity, strong security, in various communication systems, be widely used.But in the occasion of relative rotary motion, rotate and cause reversing of optical cable easily, cause optical cable to be twisted off when serious.And optical fiber communication self has strict requirement to continuous signal and low-loss transmission.Therefore, fiber rotation connector arises at the historic moment.Fiber rotation connector is the crucial transition apparatus that rotatablely moves in the modern optical communication systems, can be widely used in industrial robot and control desk, harbour machinery and many civil and militaries field such as hang between wall and master control machine room, radar antenna and the on-vehicle host.
Fiber rotation connector mainly is divided into two classes: photoelectricity mixed transport formula and light transmission formula.The former be in inside with light signal after Optical Receivers converts electric signal to, converting light signal to by light emission module again sends from the other end, though Optical Receivers has improved light receiving efficiency, but opto-electronic conversion is by behind the circuit module, increased signal delay time, and be subjected to inner space and structural limitations, make such connector only have one group of light-receiving, the light emission module only can one-way only operation; The latter focuses on emission with the light signal scioptics of Optical Fiber Transmission or receives, but lens install and fix difficulty, and lens focus all has very strict requirement with aiming at of fiber core.
Summary of the invention
The object of the present invention is to provide can realize bidirectional optical signal under the relative rotary motion situation in real time, a kind of single-passage straight-through fiber rotation connector of low-loss transmission.
For achieving the above object, the present invention adopts following technical proposals:
A kind of single-passage straight-through fiber rotation connector comprises a stator support, a rotor field spider, a stator inner sleeve and a rotor inner sleeve, it is characterized in that described stator support and described rotor field spider are the disk of flanged pin and center pit; A stator outer tube that has flange is arranged, and its flange is fixedlyed connected with the flange of described stator support by screw; Constitute between the outer ring of the inner ring of described stator outer sleeve by two bearings and described rotor field spider and be rotatably connected; Fixedly mount a stator flange and a rotor flange in the center pit of described stator support and rotor field spider respectively; The limit casing of one of suit and rotor flange relative motion in the center pit of described stator flange and rotor flange; Described stator inner sleeve and rotor inner sleeve are installed in the described limit casing.
By a back-up ring locations spaced, the sealing between an O-ring seal realization rotor field spider and the stator outer sleeve is settled in described rotor field spider flange turning point between the inside race of above-mentioned two bearings.
The center pit of said stator support and rotor field spider is the center pit with interior step, by screw stator flange and rotor flange is fixed on the interior step of described center pit respectively.
Said stator flange and rotor flange are two piece combined, and the termination model is FC/PC (UPC) or ST/PC etc.
Said stator inner sleeve and rotor inner sleeve are respectively the cylindrical high density ceramic pipe of the C type that has a narrow groove on the outer wall.
Principle of work of the present invention:
According to the light transmission theory, only under the situation that light signal transmits continuously, could realize the unimpeded of data communication.Realize the transmission of light signal in the fiber rotation connector between stator and the rotor by the space articulation mode.The present invention utilizes stator support, rotor field spider, stator outer sleeve, stator flange, rotor flange, limit casing, stator inner sleeve and rotor inner sleeve, by constituting single-passage straight-through fiber rotation connector after screw, bearing, the back-up ring secured in alignment.The course of work of this fiber rotation connector is: two optical patchcords are connected on stator flange and the rotor flange, and the ceramic core of optical patchcord inserts stator inner sleeve and rotor inner sleeve respectively.When light signal transmits, when keeping relative motion between stator support and the rotor field spider, just can realize single-passage straight-through fiber rotation connector in optical patchcord.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art:
(1) mode that adopts the butt joint of stator flange and rotor flange, stator inner sleeve and rotor inner sleeve to dock simplifies the structure, and is convenient to conveniently;
(2) do not have complicated optical system, greatly reduce cost;
(3) no photo-translating system, the signal delay of having avoided opto-electronic conversion to cause;
(4) compact conformation is convenient to produce in enormous quantities.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
A preferred embodiment accompanying drawings involved in the present invention is as follows:
Referring to Fig. 1, stator support 1 and rotor field spider 2 are fixed on the inside of stator outer sleeve 3 in this single-passage straight-through fiber rotation connector by clutch shaft bearing 4, back-up ring 5, second bearing 6, O-ring seal 7; Stator outer sleeve 3 is fixed on the outside of stator support 1 by male screw thread 8; Stator flange 9 is fixed in the interior step center pit of stator support 1 by stator screw 14; Rotor flange 13 is fixed in the interior step center pit of rotor field spider 2 by rotor screw 15; Stator inner sleeve 11 and rotor inner sleeve 12 are positioned at limit casing 10; Limit casing 10 is positioned in the interior center pit of stator flange 9 and rotor flange 13 by stepped hole in the termination of stepped hole in the termination of stator flange 9 and rotor flange 13; Back-up ring 5 is positioned at the centre of the clutch shaft bearing 1 and second bearing 2; O-ring seal 7 is fixed on the external corners place of rotor field spider 2 by stator outer sleeve 3.Article two, optical patchcord is connected on stator flange 9 and the rotor flange 13, and the ceramic core of optical patchcord inserts stator inner sleeve 11 and rotor inner sleeve 12 respectively.When light signal transmits, when keeping relatively rotating between stator support 1 and the rotor field spider 2, just can realize single-passage straight-through fiber rotation connector in optical patchcord.
In the present embodiment, O-ring seal 7 can be selected the O-ring seal of O type rubber ring or poly-PTFE, realizes dustproof, the waterproof sealing of rotary connector; Limit casing 10 can be selected the metal of high hardness material for use; Stator inner sleeve 11 and rotor inner sleeve 12 adopts the cylindrical high density ceramic pipe of C type that has a narrow groove on the outer walls, makes stator inner sleeve 11 and rotor inner sleeve 12 have certain elasticity, and is complementary with the size of optical patchcord ceramic core; The length of optical patchcord ceramic core is that half summary of limit casing 10 length is short, to reduce friction; Limit casing 10 surfaces externally and internallies and with the contact site coating lubricating oil of stator flange 9, rotor flange 13, stator inner sleeve 11, rotor inner sleeve 12, further to reduce friction; The length of limit casing 10 and external diameter are by the interior hole length and the internal diameter decision of stator flange 9, rotor flange 13; The selection of optical patchcord connector is consistent with the model of stator flange 9, rotor flange 13.
Claims (3)
1. single-passage straight-through fiber rotation connector, comprise a stator support (1), a rotor field spider (2), a stator inner sleeve (11) and a rotor inner sleeve (12), it is characterized in that described stator support (1) and described rotor field spider (2) are the disk of flanged pin and center pit; A stator outer tube (3) that has flange is arranged, and its flange is fixedlyed connected with the flange of described stator support (1) by screw (8); Constitute between the outer ring of the inner ring of described stator outer sleeve (3) by two bearings (4,6) and described rotor field spider (2) and be rotatably connected; Fixedly mount a stator flange (9) and a rotor flange (13) in the center pit of described stator support (1) and rotor field spider (2) respectively; The limit casing (10) of one of suit and rotor flange (13) relative motion in the center pit of described stator flange (9) and rotor flange (13); Described stator inner sleeve (11) and rotor inner sleeve (12) are installed in the described limit casing (10); By a back-up ring (5) locations spaced, the sealing between an O-ring seal (7) realization rotor field spider (2) and the stator outer sleeve (3) is settled in described rotor field spider (2) flange turning point between the inside race of described two bearings (4,6); The center pit of described stator support (1) and rotor field spider (2) is the center pit with interior step, by screw (14,15) stator flange (9) and rotor flange (13) is fixed on the interior step of described center pit respectively.
2. single-passage straight-through fiber rotation connector according to claim 1 it is characterized in that described stator flange (9) and described rotor flange (13) are two piece combined flanges, and the termination model is FC/PC (UPC) or ST/PC.
3. single-passage straight-through fiber rotation connector according to claim 1 is characterized in that described stator inner sleeve (11) and rotor inner sleeve (12) are respectively the cylindrical high density ceramic pipe of the C type that has a narrow groove on the outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100503457A CN101566709B (en) | 2009-04-30 | 2009-04-30 | Single-passage straight-through fiber rotation connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100503457A CN101566709B (en) | 2009-04-30 | 2009-04-30 | Single-passage straight-through fiber rotation connector |
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| Publication Number | Publication Date |
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| CN101566709A CN101566709A (en) | 2009-10-28 |
| CN101566709B true CN101566709B (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100503457A Active CN101566709B (en) | 2009-04-30 | 2009-04-30 | Single-passage straight-through fiber rotation connector |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472539B (en) * | 2013-09-04 | 2016-06-15 | 中国电子科技集团公司第八研究所 | A kind of method of hollow light slip ring and transmission optical signal thereof |
| CN105242362B (en) * | 2015-11-09 | 2018-01-30 | 中国船舶重工集团公司第七二四研究所 | A kind of multimedium rotary gemel and its integral design method based on blindmate interconnection |
| CN106125203A (en) * | 2016-08-24 | 2016-11-16 | 杭州全盛机电科技有限公司 | The optical fiber slip ring optical signal transmission structure of low-loss height rotational life and method of work |
| CN110832794A (en) * | 2018-08-10 | 2020-02-21 | 深圳市大疆创新科技有限公司 | Rotatable communication connector and radar and unmanned aerial vehicle with same |
| CN110007408B (en) * | 2019-05-06 | 2023-10-03 | 中国电子科技集团公司第三十四研究所 | Dampproofing sealed connector based on high-power single mode protection/single offset special optic fibre |
| CN111796367B (en) * | 2020-06-30 | 2021-06-22 | 中国科学院西安光学精密机械研究所 | Space long-life binary channels optic fibre rotary connector |
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2009
- 2009-04-30 CN CN2009100503457A patent/CN101566709B/en active Active
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| CN101566709A (en) | 2009-10-28 |
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