CN100460908C

CN100460908C - Optical fibre rotary collector

Info

Publication number: CN100460908C
Application number: CNB2007100050354A
Authority: CN
Inventors: 程霁竑; 石素芬; 陈学永
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2007-02-13
Filing date: 2007-02-13
Publication date: 2009-02-11
Anticipated expiration: 2027-02-13
Also published as: CN101013186A

Abstract

The invention relates to a fiber rotary connector, which combines optical system and mechanical system to complete optical signal transmission in the relative movement state. Collimator combines the prism to form the fiber rotary connector optical system, and mechanical system uses the planetary gear drive mechanism. The fiber exhaled light passes through the collimator to collimate to big light spot parallel rays, and when the parallel rays rotating with velocity v, the prism rotating with velocity v/2 with the same direction, so the exhaled light and the incident light have the same position. The program features v/2 velocity, and the same direction rotation, so the mechanical system totally uses 8 precision gears, 4 ceramic bearings, 6 double-sealed bearings, and the 8 gears have both rotation and revolution, considering two center round space as multiple planetary transmission loads; the incident parallel rays passes through the optical system, and with the prism all-reflection to form the corresponding exhaled parallel rays. The program can be very convenient to achieve space free rotation, optical signal two-way transmission.

Description

A kind of fiber rotation connector

Technical field

The present invention relates to a kind of fiber rotation connector.

Background technology

United States Patent (USP) (US5157745) discloses a kind of hyperchannel spin fiber connector, it is made up of prism, bearing, gear, fiber optic collimator mechanism, turning axle etc., rotary body links together by bearing and shell, there is prismatic adjustment mechanism at two ends, realize the purpose that input is synchronous with output by gear drive.Because the complex structure of fiber optic collimator mechanism, volume is big, and difficulty is installed.

Summary of the invention

The objective of the invention is: propose the little easy-to-install fiber rotation connector of a kind of volume simple in structure.Technical scheme of the present invention is: by the end cap parts, stiff end collimating apparatus parts, shell body, geared parts, the interlinked mechanism assembly, the prism mechanism assembly, rotator assembly, round end collimating apparatus parts, the ripple spring, the line base member is formed, wherein, the prism mechanism assembly comprises prism, the prism positioning seat, spring, screw, round end collimator positioner parts comprise collimating apparatus, the collimator positioner seat, adapter sleeve, the end cap parts, stiff end collimator positioner parts, geared parts, the interlinked mechanism assembly, rotator assembly is fixed in the shell body, the prism mechanism assembly is fixed in the interlinked mechanism assembly, round end collimator positioner parts are fixed in the rotator assembly, and the ripple spring is placed between interlinked mechanism assembly and the rotator assembly; The prism positioning seat is cylindric, and its center has by square hole and circular hole intersects the through hole that forms, and the through hole at prism positioning seat center is circle or square groove or semisphere, and the prism positioning seat adopts iron nickel cobalt glass sealing alloy; Three turning axles that bearing and gear are housed evenly are installed on the chipware housing in the interlinked mechanism assembly, and the external diameter of turning axle has the step of different-diameter in axial distribution, and turning axle adopts optical axis, socket gear location cover on three turning axles; As a whole of adapter sleeve, four steps that its outside journal axle does not wait to promising diameter, endoporus one end has screw thread, and the other end is a unthreaded hole; The lining of dress O-ring seals in the sleeve member socket in the rotator assembly on the locking ring component, the lining of dress O-ring seals in the socket on the sleeve member on the interlinked mechanism assembly inner pedestal, the lining of dress O-ring seals in the socket on the sleeve member of interlinked mechanism assembly annular wheel location cover, O-ring seals adopts the spring that goes in ring, and lining adopts teflon.

Advantage of the present invention is: finish the transmission of light signal under the relative motion state by optical system and mechanical system applied in any combination.Collimating apparatus cooperates the optical system that forms fiber rotation connector with prism, mechanical system has adopted the planet circular system gear train.The diverging light of outgoing process collimating device collimation becomes the directional light of large spot in the optical fiber, and when directional light was rotated with speed v, prism was rotated so that speed v/2 are equidirectional, so emergent light and incident light position are constant.The characteristics of this scheme are v/2 rotating speed, rotation in the same way, so mechanical system is shared to 8 precision gears, 4 ceramic bearings, 6 double sealed bearings, revolution motion is done in these 8 existing rotations of gear again, its feature is the reasonable utilization of interior external toothing, uses space between two centre wheels with several Gear Planet Transmission load; Increased the degree of freedom of train, improved work efficiency and reliability, realized the ratio of gear of rotary body and fixed body, made incident end directional light hold capable light correspondence one by one level with both hands through the total reflection formation outgoing of prism in the optical system.This scheme easily the implementation space rotate freely, the light signal transmitted in both directions.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an interlinked mechanism modular construction synoptic diagram of the present invention;

Fig. 3 is a rotator assembly structural representation of the present invention;

Fig. 4 is a prism positioning seat structural representation of the present invention, and wherein, A is a left view, and B is a front view, and C is a right view;

Fig. 5 is a prism positioning seat circular port structural representation of the present invention, and wherein, A is a left view, and B is a front view, and C is a right view;

Fig. 6 is a prism positioning seat square groove pore structure synoptic diagram of the present invention, and wherein, A is a left view, and B is a front view, and C is a right view;

Fig. 7 is a prism positioning seat hemisphere pore structure synoptic diagram of the present invention, and wherein, A is a left view, and B is a front view, and C is a right view;

Fig. 8 is the belt spring structure synoptic diagram of the present invention;

Fig. 9 is a revolute axes configuration synoptic diagram of the present invention;

Figure 10 is a line nested structure synoptic diagram of the present invention.

Embodiment

Below the present invention is described in further details.Referring to Fig. 1 and Fig. 2, the present invention includes end cap parts 1, stiff end collimating apparatus parts 4, shell body 25, geared parts 5, interlinked mechanism assembly 8, prism mechanism assembly 10, rotator assembly 19, round end collimating apparatus parts 21, ripple spring 9, line base member 20 is formed, wherein, prism mechanism assembly 10 comprises prism 11, prism positioning seat 12,

spring

13,14,15,

screw

16,17,18, round end collimator positioner parts 21 comprise collimating apparatus 22, collimator positioner seat 23, adapter sleeve 24, end cap parts 1, stiff end collimator positioner parts 4, geared parts 5, interlinked mechanism assembly 8, rotator assembly 19 is fixed in the shell body 25, prism mechanism assembly 10 is fixed in the interlinked mechanism assembly 8, round end collimator positioner parts 21 are fixed in the rotator assembly 19, and ripple spring 9 is placed between interlinked mechanism assembly 8 and the rotator assembly 19; Prism positioning seat 12 is cylindric, and its center has by square hole 81 and circular hole 80 intersects the through hole 85 that forms, and through hole 85 can also be circle 82 or square groove 83 or semisphere 84; Three turning axles 28,29,30 that bearing 34,35,36,43,44,45 and gear 25,26,27,46,47,48 are housed evenly are installed on the chipware housing 66 in the interlinked mechanism assembly 8, the external diameter of turning axle 28,29,30 has the step of different-diameter in axial distribution, turning axle 28,29,30 adopts optical axis, socket gear location cover 61 on three turning axles 28,29,30; 24 as a whole of adapter sleeves, four steps that its outside journal axle does not wait to promising diameter, endoporus has an end that screw thread 86 is arranged, and the other end is a unthreaded hole; The lining 79 of dress O-ring seals 78 in sleeve member 76 sockets in the rotator assembly 19 on the locking ring component 75, the lining 57,58,59 of dress O-ring seals 55,56,59 in the socket on the sleeve member 52,53,54 on interlinked mechanism assembly 8 inner pedestals 37,38,39, the lining 65 of dress O-ring seals 64 in the socket on the sleeve member 63 of interlinked mechanism assembly 8 annular wheels location cover 61, O-ring seals 55,56,59,64,78 adopts the spring that goes in ring.

Be evenly distributed with three turning axles 28,29,30 on the circumference of the chipware housing 66 of interlinked mechanism assembly 8, with turning axle 28 is example, one end of turning axle 28 is equipped with a gear 25, turning axle 28 other ends pack into successively bearing seat 31,37, bearing 34,43, retaining pipe 40, sleeve member 52, pad 46 and gear 49, two ends are screwed then.Sleeve member 52 is socketed on the bearing seat 37, the bottom contacts with chipware housing 66 end faces, endoporus contacts with bearing seat 37 cylindricals, utilize the elasticity of O-ring seals 55 in the sleeve member 52 and the lubrication of lining 57, eliminate turning axle 28 axial and radial stresses in the rotary course, improve its serviceable life, O-ring seals 55 can also adopt belt spring.Engagement for adjusting gear 25,26,27 and gear 7 and gear 49,50,51 and gear 70, at an end of the chipware housing 66 gear location cover 61 of packing into, sleeve member 63 in the gear location cover 61 is made up of O-ring seals 64 and lining 65, O-ring seals 64 makes Elastic Contact between each gear, guarantee gear 49,50,51 and gear 70 uniform contact, lining 65 has self-lubricating function, can reduce the friction between each contact component, make smooth rotation between each rotary body, O-ring seals 64 can also adopt belt spring.Interlinked mechanism assembly 8 external diameters are fixed with bearing 67,69 and back-up ring 68, geared parts 4, interlinked mechanism assembly 8 are packed into gear 25,26,27 on the interlinked mechanism assembly 8 and 7 engagements of the gear on the geared parts 4 from an end of shell body 25.

Rotator assembly 19 is by bearing 72,74, back-up ring 73, retaining ring parts 75, flange shell 71, gear 70 is formed, flange shell 71 external diameters have the step of two different-diameters in axial distribution, on path, be fixed with bearing 72,74 and back-up ring 73, socket retaining ring parts 75 are gone up in big footpath, retaining ring parts 75 are by retaining ring 77, sleeve member 76 is formed, rotator assembly 19 is packed into from shell body 25 other ends, gear 70 and gear 25,26,27 engagements, be screwed on flange shell 71, retaining ring 77 screw threads are threaded with shell body 25, prevent that rotator assembly 19 from throwing off from shell body 25, sleeve member 76 is socketed on the big footpath of flange shell 71, its inner lining 79 and O-ring seals 78 play shockproof and lubrication, and O-ring seals 78 can also adopt belt spring.Between rotator assembly 19 and the interlinked mechanism assembly 8 ripple spring 9 is installed, utilizes ripple spring 9 axial elasticities, regulate the gap between bearing 67 and the bearing 72.In order to improve the serviceable life of entire product, bearing 67,69,72,74 has adopted the ceramic bearing that self-lubricating function is arranged, and bearing 34,35,36,43,44,45 has adopted double density capping bearing.

Prism mechanism assembly 10 is packed in the interlinked mechanism assembly 8,

spring

13,14,15 is enclosed within and is evenly distributed in 12 3 directions of prism positioning seat on the

screw

16,17,18, position with special-purpose adjusting gear calibration prism mechanism assembly 10, observe special-purpose adjusting gear display, position according to the prism picture point, the

screw

16,17,18 of three directions of rotation, until assigned position, the prism positioning seat 12 in the prism mechanism assembly 10 can also use circular port prism positioning seat, square groove shape prism positioning seat, semisphere prism positioning seat.Because when of prism 11 itself rotated with angular velocity omega, the image that sees through it then rotates with the angular velocity of 2 ω, utilize this characteristic, can allow the light signal rotation coupling of two parts light path in the relative rotation, so adopted little modulus, high-precision gear set to form accurate gear drive, guaranteed the speed ratio of the two.

Round end collimator positioner parts 21 are fixed in the rotator assembly 19, stiff end collimator positioner parts 4 usefulness glue are fixed on shell body 25 near interlinked mechanism assembly 8 one ends, light signal enters from any end collimating apparatus, in other end collimating apparatus, the implementation space rotates freely, the light signal transmitted in both directions by prismatic reflection.Last shell body two ends pack into end cap parts 1 and line base member 20.

Claims

1. fiber rotation connector, it is by end cap parts (1), stiff end collimating apparatus parts (4), shell body (25), geared parts (5), interlinked mechanism assembly (8), prism mechanism assembly (10), rotator assembly (19), round end collimating apparatus parts (21), ripple spring (9), line base member (20) is formed, wherein, prism mechanism assembly (10) comprises prism (11), prism positioning seat (12), spring (13), (14), (15), screw (16), (17), (18), round end collimator positioner parts (21) comprise collimating apparatus (22), collimator positioner seat (23), adapter sleeve (24), end cap parts (1), stiff end collimator positioner parts (4), geared parts (5), interlinked mechanism assembly (8), rotator assembly (19) is fixed in the shell body (25), prism mechanism assembly (10) is fixed in the interlinked mechanism assembly (8), round end collimator positioner parts (21) are fixed in the rotator assembly (19), and ripple spring (9) is placed between interlinked mechanism assembly (8) and the rotator assembly (19); It is characterized in that prism positioning seat (12) is cylindric, its center has by square hole (81) and circular hole (80) intersects the through hole (85) that forms; Chipware housing (66) is gone up evenly three of installations bearing (34), (35), (36), (43), (44), (45) and gear (25), (26), (27), (46), (47), the turning axle (28) of (48), (29), (30) is housed in the interlinked mechanism assembly (8), the external diameter of turning axle (28), (29), (30) has the step of different-diameter in axial distribution, and three turning axles (28) (29) (30) are gone up socket gear location cover (61); As a whole of adapter sleeve (24), its outside journal axle is to four steps that have diameter not wait, and endoporus one end has screw thread (86), and the other end is a unthreaded hole; The lining (79) of dress O-ring seals (78) in sleeve member (76) socket in the rotator assembly (19) on the locking ring component (75), dress O-ring seals (55), (56), the lining (57) of (59), (58), (59) in the socket are gone up in sleeve member (52) on interlinked mechanism assembly (8) inner pedestal (37), (38), (39), (53), (54), and the sleeve member (63) of interlinked mechanism assembly (8) annular wheel location cover (61) goes up the lining (65) of dress O-ring seals (64) in the socket.

2. fiber rotation connector according to claim 1 is characterized in that, the through hole (85) at prism positioning seat (12) center is circular (82) or square groove (83) or semisphere (84).

3. fiber rotation connector according to claim 1 is characterized in that, prism positioning seat (12) adopts iron nickel cobalt glass sealing alloy.

4. fiber rotation connector according to claim 1 is characterized in that, the spring that goes in ring is adopted in O-ring seals (55), (56), (59), (64), (78).

5. fiber rotation connector according to claim 1 is characterized in that, teflon is adopted in lining (57), (58), (59), (65), (79).

6. fiber rotation connector according to claim 1 is characterized in that, optical axis is adopted in turning axle (28), (29), (30).