CN103884353B - A kind of provision for disengagement for dismantling detachable skeleton frock and method - Google Patents
A kind of provision for disengagement for dismantling detachable skeleton frock and method Download PDFInfo
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- CN103884353B CN103884353B CN201410100262.5A CN201410100262A CN103884353B CN 103884353 B CN103884353 B CN 103884353B CN 201410100262 A CN201410100262 A CN 201410100262A CN 103884353 B CN103884353 B CN 103884353B
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Abstract
The present invention provides a kind of detachable skeleton frock, and for dismantling provision for disengagement and the method for dismounting of this frock, detachable skeleton frock includes cover plate, wheel hub, screw；Wheel hub is spliced to form by two semicircular ring hollow cylinder housings, leaves gap between two semicircular ring hollow cylinder housings；Two cover plates are connected by screw is fixing with wheel hub both sides axial end respectively；In the diametric(al) of two panels cover plate internal ring, symmetry has dug one group of groove；Provision for disengagement includes outside protective covers, slidably fixes post, slidably card, fixed platform, rotation and lifting cylinder table, bearing and motor；During knockout screw, two are slidably fixed in the groove that post is stuck in two panels cover plate internal ring；During dismounting cover plate, being successively stuck in for twice in the groove of two cover plate internal ring by slidably card, fixed platform is connected with external stability and remains stationary as, by driven by motor bearing rotary thus elevation cylinder platform being rotated and rotating and lift, successively by the dismounting of two panels cover plate.
Description
Art
The present invention relates to the provision for disengagement of a kind of optical fibre gyro skeleton-free fiber loop skeleton frock and method for dismounting, particularly the provision for disengagement of a kind of bone free ring skeleton frock for adopting impregnation mode to solidify and method.
Background technology
Optical fibre gyro sensitivity ring is called for short optical fibre gyro fiber optic loop, fiber optic loop is the critical optical components and parts in optical fibre gyro, one of the main error source that the non-reciprocal phase difference of two-beam that fiber optic loop propagates in opposite directions is optical fibre gyro is entered along fiber optic loop two ends, particularly the ambient temperature reciprocity of fiber optic loop is extremely important for optical fibre gyro, each producer developing, producing optical fibre gyro all pays much attention to the development of optical fibre gyro fiber optic loop, and the temperature characterisitic of fiber optic loop limits the through engineering approaches of optical fibre gyro just at home.
Fiber optic loop is divided into skeleton fiber optic loop and skeleton-free fiber loop.It is made up of skeleton and fiber optic coils skeleton fiber optic loop, is wrapped in skeleton outer surface close fiber optic, under the supporting role of skeleton, form the fiber optic coils of proper alignment.The fiber optic coils having skeleton fiber optic loop is wrapped in skeleton outer surface closely, due to not mating of thermal coefficient of expansion, nonsynchronous expansion and contraction can be produced between metallic framework and optical fiber under variation of ambient temperature, thus producing extra extruding and shrinkage stress, this extruding and shrinkage stress are one of principal elements affecting the change of fiber optic loop temperature stabilization performance.Along with the change of ambient temperature, extrusion stress and shrinkage stress between fiber optic coils and skeleton exist at axially and radially contact surface simultaneously.If stress difference suffered between optical fiber transverse direction pairwise orthogonal direction is Δ σ, then the specific refractivity produced accordingly in two directions is:
In formula, n is fiber core refractive index, and E is Young's modulus, and v is Poisson's ratio, p11、p12For photoelastic tensor.The nonreciprocal phase shift of generation corresponding to this is:
From formula (2) it can be seen that nonreciprocal phase shift is linear with stress difference, namely stress difference is more big, stress distribution is more uneven, and the nonreciprocal phase shift of generation is also more big.
The stress effect that the size distortion caused to eliminate skeleton to expand with heat and contract with cold the produces impact on fiber optic loop temperature performance, domestic and international each research institute has successively started the development to skeleton-free fiber loop.Skeleton-free fiber loop adopts separable skeleton coiling, and Optical Fiber Winding is on skeleton, and fiber optic coils is separated after solidifying by impregnation from skeleton, forms skeleton-free fiber loop.Relative to there being skeleton fiber optic loop, skeleton-free fiber loop do not have skeleton expand with heat and contract with cold produce extruding and contraction, will be provided with temperature stabilization performance more preferably, and fiber optic coils be glued agent and be solidified into as a whole, therefore be provided simultaneously with better shock resistance.
Although skeleton-free fiber loop becomes the mainstream technology scheme in high-precision optical fiber gyro field because possessing many advantages, but bone free ring is not owing to having the supporting role of skeleton, its applying glue curing process and skeleton frock remove technique becomes the emphasis in bone free ring manufacturing process technology and difficult point.Present stage, domestic and international many units all adopt " wet-wound method " to manufacture skeleton-free fiber loop, namely in the process of optical fiber coiling, adopt brush coating, band glue or wrap up in the various ways such as glue and fiber optic coils is wound on detachable skeleton, after solidification, skeleton being removed, from fiber optic coils, the bone free ring obtaining molding.This glue applying method is not result in the screwed hole of detachable skeleton to remain solidification glue, therefore its skeleton frock dismounting technique is relatively easy, but due to the amount of adhesive and the bad control of uniformity when adopting " wet-wound method " coiling bone free ring, and winding process also can pollute and corrode when there is unwinding, solidification plus winding process is not easily accomplished, therefore adopt " wet-wound method " winding optical fiber ring to considerably increase the difficulty of coiling and uncontrollable degree, the bone free bad control of ring concordance of preparation, manufacturing process and flow process are not easy to repeat to fix, unstable factor is more.Therefore, we adopt method that impregnation solidifies to manufacture skeleton-free fiber loop, namely " dry winding " is adopted first to be wrapped in by fiber optic coils in detachable skeleton frock, then rational impregnation curing process is adopted to make the full adhesive of fiber optic coils inner homogeneous, adopt rational skeleton to remove technique after adhesive solidification again skeleton frock to be separated with fiber optic coils, obtain the skeleton-free fiber loop of molding.Adopting the method that impregnation solidifies to be easier to realize being uniformly distributed of adhesive, and do not affect the coiling of fiber optic coils, concordance and controllable degree are higher, it is easier to realize the mass production of skeleton-free fiber loop.
Compared with " wet-wound method " coiling curing molding, adopting the method that " dry winding " coiling and impregnation solidify to develop skeleton-free fiber loop, its skeleton is removed technique and be there is the difficult point of the following aspects:
(1) in fiber optic loop dipping process, liquid adhesive can penetrate among the screw of fixing skeleton and the gap of screwed hole, and cured glue stick increases the difficulty of screw disassembling together with being securely bonded to screwed hole skeleton by screw；
(2) in fiber optic loop dipping process, adhesive distribution between cover plate and the gap of wheel hub, between the gap of two panels wheel hub, between cover plate and wheel hub and the gap of fiber optic coils is compared sufficient, show bigger cohesive force after solidification between them owing to being absent from gap, increase the separating difficulty between skeleton frock and between cover plate and wheel hub frock and fiber facet；
(3) after solidifying due to skeleton-free fiber loop, the cohesive force between different assemblies is relatively large, the power applied is needed relatively to want big during dismounting, sensitive fragile optical fiber is undoubtedly a kind of potential danger by this, it is easy to cause that the bone free ring that unloading process occurs that optical fiber damage causes lost efficacy.
At present, both at home and abroad almost without seeing the relevant report and the article that adopt the mode that impregnation solidifies to develop skeleton-free fiber loop, report for skeleton-free fiber loop all adopts " wet-wound method " or other curing to develop, applying glue curing mode is different, and design and method for dismounting for bone free ring skeleton frock are also entirely different.As US Patent No. 20060221347A1 describes solid glue and the forming method of a kind of optical fibre gyro sensor coil, its frame design glue difficulty complicated, solid is big and is not easily controlled, although not mentioning concrete skeleton frock demolishing process, but can speculate that its unloading process is never simple.In addition, many patents both domestic and external be all lay particular emphasis on the glue-applying technique of fiber optic loop, forming method with, assembly technology, Stress Release etc. improve method and the measure of optical fiber ring performance, it does not have see the method for dismounting specific to bone free ring skeleton frock and the report of frock.
Summary of the invention
Present invention solves the technical problem that and be: overcome the deficiencies in the prior art, a kind of detachable skeleton frock and provision for disengagement thereof and method are provided, the crash rate molding qualification rate low, bone free ring realizing skeleton-free fiber loop skeleton unloading process is high, and whole unloading process dismounting difficulty is little, can controlling extent high, meet the demand of bone free ring mass production.
The technical scheme is that a kind of detachable skeleton frock, including cover plate, wheel hub, screw；Cover plate is cirque structure；Wheel hub is spliced to form by two semicircular ring hollow cylinder housings, leaves gap between two semicircular ring hollow cylinder housings；Two cover plates are connected by screw is fixing with wheel hub both sides axial end respectively；In the diametric(al) of two panels cover plate internal ring, symmetry has dug one group of groove.
A kind of provision for disengagement for dismantling detachable skeleton frock, including outside protective covers, slidably fixes post, slidably card, fixed platform, rotation and lifting cylinder table, bearing and motor；Rotation and lifting cylinder table is solid cylinder structure；Annular outside protective covers covers on outside described detachable skeleton frock；Bearing is fixing with the lower surface of rotation and lifting cylinder table to be connected；Rotation and lifting cylinder table upper surface diametrically radial direction is carved with groove, slidably fixes the embedding of post for two and is connected in groove, and slidably card sleeve is embedded in and slidably fixes outside post；During knockout screw, two are slidably fixed in the groove that post is stuck in two panels cover plate internal ring；During dismounting cover plate, being successively stuck in for twice in the groove of two cover plate internal ring by slidably card, fixed platform is connected with external stability and remains stationary as, by driven by motor bearing rotary thus elevation cylinder platform being rotated and rotating and lift, successively by the dismounting of two panels cover plate.
A kind of method utilizing described provision for disengagement to dismantle described bone free ring skeleton frock, comprises the following steps:
1), before carrying out bone free ring optical fiber coiling, adopt one component room temperature cure silicone rubber that the screwed hole at screw place and nut fill protection, and at the outer surface pad of wheel hub around fine paper；
2) during dismounting, being stuck in the groove of two panels cover plate internal ring by slidably fixing post, covered on by outside protective covers outside detachable skeleton frock, protection is wound on the optical fiber in detachable skeleton frock；Described outside protective covers is hollow cylindrical housing；
3) silicone rubber at nut places all on cover plate is removed, the more all screws on cover plate are screwed out；
4) regulate two distances slidably fixing intercolumniation, make slidably to fix post and separate with the groove in a kind of detachable skeleton frock, then general's slidably card is moved upward to and slidably fixes column top, is successively stuck in for twice in the groove of two cover plate internal ring；Start driven by motor bearing rotary, rotate thus elevation cylinder platform is rotated, successively two panels cover plate is dismantled；
5) regulate two distances slidably fixing intercolumniation, make slidably card in the surface of wheel hub, start the lifting of driven by motor bearing, thus elevation cylinder platform lifting is rotated, wheel hub is dismantled.
Present invention advantage compared with prior art is in that:
(1) present invention is when skeleton frock assembles; be filled with a sealing protection to the screwed hole of cover plate and the room curing silicon rubber of nut groove location employing low modulus, low adhesion strength; prevent among the gluing gap penetrating into screw and screwed hole of solidification that immersing glue process adhesion strength is big; avoid the solidification glue after solidification screw and screwed hole to be bonded together, reduce the dismounting difficulty of screw.
(2) present invention is before fiber optic loop coiling; the bottom adopt pad three layers thin, multiporous, permeability and the good method around fine paper of wellability; after solidification, innermost layer optical fiber is filled the three-ply paper protection solidifying glue; reduce the probability that inner layer optical fiber is damaged by wheel hub corner angle when wheel hub is dismantled, improve the dismounting molding qualification rate of bone free ring.
(3) present invention is when skeleton frock is dismantled; bone free ring is fixed on special fixing tool to prevent the slip of skeleton in unloading process; simultaneously with the optical fiber adopting outside protective covers that bone free ring surrounding protects against unloading process damage bone free ring outer surface, reduce the crash rate of bone free ring unloading process.
(4) present invention is when cover plate is dismantled, and adopts the revolving force of horizontal circle circumferential direction to realize the dismounting to cover plate, and the size of rotary speed and revolving force can control and regulate, it is to avoid because having an effect, the uneven bone free ring surface optical fiber caused is clashed into and damages.
(5) present invention is when wheel hub is dismantled, and adopts the effect being fixed on the slidably card down-force slidably fixed on post to realize the dismounting to wheel hub, firmly uniform, controllable, it is possible to be prevented effectively from the damage to innermost layer optical fiber of the wheel hub unloading process.
(6) unloading process bone free ring skeleton is both placed on fixing tool, the dismounting to wheel hub and cover plate is realized by lowering or hoisting gear and rotary apparatus, whole process is not related to operation of manually having an effect, and unloading process controllable degree is high, reliability is high, and the crash rate of unloading process is low.
In a word; the present invention adopts the Skeleton assembly of improvement fill glue resist technology, bottom coiling packing paper technology, fixing and protecting tool set-up design, cover plate and the design of wheel hub disassembling fixture and optimize the skeleton dismounting corrective measure such as technique and method; achieve easily removing smoothly of bone free ring skeleton frock; reduce the crash rate of bone free ring skeleton unloading process, it is ensured that the molding qualification rate of bone free ring.
Accompanying drawing explanation
Fig. 1 is the detachable framing structure schematic diagram of bone free ring；
The skeleton disassembling fixture that Fig. 2 is the present invention connects and structural representation；
Fig. 3 is the structural representation of outside protective covers of the present invention.
Detailed description of the invention
As it is shown in figure 1, a kind of detachable skeleton frock of the present invention includes cover plate 1, wheel hub 2, screw 3；Cover plate 1 is cirque structure；Wheel hub 2 is spliced to form by two semicircular ring hollow cylinder housings, leaves gap between two semicircular ring hollow cylinder housings；Two cover plates 1 are connected by screw 3 is fixing with wheel hub 2 both sides axial end respectively；In the diametric(al) of two panels cover plate 1 internal ring, symmetry has dug one group of groove.
As in figure 2 it is shown, the provision for disengagement of a kind of detachable skeleton frock of the present invention includes slidably fixing post 8, slidably card 9, fixed platform 12, rotation and lifting cylinder table 13, bearing 14 and motor 15；Rotation and lifting cylinder table 13 is solid cylinder structure；Bearing 14 is fixing with the lower surface of rotation and lifting cylinder table 13 to be connected；Rotation and lifting cylinder table 13 upper surface diametrically radial direction is carved with groove, slidably fixes the embedding of post 8 for two and is connected in groove, and slidably card 9 is embedded in and slidably fixes outside post 8；During knockout screw 3, two are slidably fixed in the groove that post 8 is stuck in two panels cover plate 1 internal ring；During dismounting cover plate 1, slidably card 9 is successively stuck in for twice in the groove of two cover plate 1 internal ring, fixed platform 12 is connected with external stability and remains stationary as, and is rotated by motor 15 band dynamic bearing 14 thus elevation cylinder platform 13 being rotated and rotating and lift, is dismantled by two panels cover plate 1 successively.
The present invention develops skeleton-free fiber loop in conjunction with fiber optic loop impregnation curing technology, adopts some new mentalities of designing and technology to realize the highly reliable dismounting to bone free ring skeleton frock.Specific implementation method is as follows:
1, silicon rubber filling protection
Adopt low modulus, the room curing silicon rubber such as GD414 of low adhesion strength, 703 etc. screwed hole and the nut at screw 3 place are filled glue protection.First it is tightened with the screw 3 cover plate 1 by skeleton frock and wheel hub 2, then one by one screw 3 is screwed out, after often screwing out a screw, with syringe to injection silicone rubber in the screwed hole at screw 3 place until the inner surface of screwed hole is covered with silicone rubber, again screw 3 is put in the screwed hole having filled silicone rubber and be tightened, so repeatedly until all of screwed hole has all filled silicone rubber.After solidification again with syringe by a certain amount of silicon rubber filling at nut groove, glue amount is full of with groove and is as the criterion, so repeatedly until all grooves of a cover plate all fill up silicone rubber, adopt identical method by the groove filled silicon rubber on another side cover plate after this face silicone rubber is fully cured.
2, inner layer optical fiber protection
After the protection of detachable skeleton frock filled silicon rubber, needing the method adopting bottom packing paper to protect innermost layer optical fiber before fibre.Select all even and fine thin pore special around fine paper, it is cut into the size that width is identical with wheel hub 2 groove width, one end is pasted onto on wheel hub after being uniformly coated with glue stick one layer very thin, then with this end for starting point by after fine for pad paper compact winding three layers, end adopts identical method to be pasted onto on lower floor's paper after being uniformly coated with one layer of thin glue stick.Packing paper is crossed range request and is closely attached to skeleton surface, it is impossible to has projection or loosens the neat coiling avoiding affecting optical fiber.The coiling of optical fiber can be started after having padded three-ply paper.
3, the dismounting of detachable skeleton frock
Fixing and the protection of 1 skeleton frock
Skeleton fixing tool is as shown in Figure 2.First to make it circumferentially and vertically not produce on direction mobile by fixing for fixed platform 12.Adjust the distance of removable fixing post 8 on fixing tool again and it is slightly less than the distance on skeleton cover plate between two symmetrical grooves, plugging latch makes it fix with fixed platform 12, is clamped in skeleton cover plate groove by removable fixing post 8 and makes its fixing bone free ring skeleton being about to dismounting；Select the cylindrical protective outer housing 7 more slightly bigger than skeleton frock external diameter to be covered by the bone free ring being fixed on fixing tool, it is achieved to the protection being about to the fixing of dismounting bone free ring skeleton and outer layer optical fiber simultaneously.
The removing of 2 nut groove protection glue
The edge of the nut groove of the tweezers alignment screw 3 that selection bipod is tapering, along the circumferential direction pries open the silicone rubber filling protection and carefully rejects, then with tweezers, the silicone rubber rejecting in screw head one word groove is enabled effective clamping one word screwdriver head.
The dismounting of 3 screws
With the groove of a word screwdriver clamping head of screw, rotation screwdriver of first having an effect counterclockwise makes screw 3 unscrew until being screwed out from screwed hole completely by screw, so repeats until all screws on a cover plate 1 are screwed out.Skeleton frock is taken off from fixing tool, retightens on fixing tool after upset one side, adopt the screw on identical method dismounting another side cover plate 1.
The dismounting of 4 cover plates
Regulate two distances slidably fixed between post 8, make slidably to fix post 8 and separate with the groove in a kind of detachable skeleton frock, then general's slidably card 9 is moved upward to and slidably fixes post 8 top, is successively stuck in for twice in the groove of two cover plate 1 internal ring；Start motor 15 band dynamic bearing 14 to rotate, rotate thus elevation cylinder platform 13 is rotated, successively two panels cover plate 1 is dismantled.During dismounting, the size of rotatory force and rotating speed can accurately regulate, and improve the reliability of cover plate dismounting.
The dismounting of 5 wheel hubs
Regulate two distances slidably fixed between post 8, slidably card 9 is made to be stuck in the surface of wheel hub 2, start motor 15 and lift the lower upper surface flush along height with wheel hub 2 until slidably sheet 9 with dynamic bearing 14, regulate the mobile position slidably fixing post 8 again make the upper surface of slidably card 9 and wheel hub 2 and be directed at, being again started up motor 15 drives slidably card 9 to move down, until wheel hub 2 and bone free ring inner fibers surface are kept completely separate.The speed declined and the size of driving force can accurately control, it is ensured that the reliable dismounting of wheel hub.
The content not being described in detail in description of the present invention belongs to the known technology of those skilled in the art.
Claims (2)
1. one kind for dismantling the provision for disengagement of detachable skeleton frock, it is characterised in that: include outside protective covers (7), slidably fix post (8), slidably card (9), fixed platform (12), rotation and lifting cylinder table (13), bearing (14) and motor (15)；The detachable skeleton frock being disassembled includes cover plate (1), wheel hub (2), screw (3)；Cover plate (1) is cirque structure；Wheel hub (2) is spliced to form by two semicircular ring hollow cylinder housings, leaves gap between two semicircular ring hollow cylinder housings；Two cover plates (1) are connected by screw (3) is fixing with wheel hub (2) both sides axial end respectively；In the diametric(al) of two panels cover plate (1) internal ring, symmetry has dug one group of groove；Described rotation and lifting cylinder table (13) is solid cylinder structure；Annular outside protective covers (7) covers on outside described split detachable skeleton frock；Bearing (14) is fixing with the lower surface of rotation and lifting cylinder table (13) to be connected；Rotation and lifting cylinder table (13) upper surface diametrically radial direction is carved with groove, slidably fixes the embedding of post (8) for two and is connected in groove, and slidably card (9) is embedded in and slidably fixes post (8) outside；During knockout screw (3), two are slidably fixed in the groove that post (8) is stuck in two panels cover plate (1) internal ring；During dismounting cover plate (1), to slidably successively be stuck in for twice in the groove of two cover plate (1) internal ring by card (9), fixed platform (12) is connected with external stability and remains stationary as, rotated by motor (15) band dynamic bearing (14) thus elevation cylinder platform (13) being rotated and rotating and lifting, successively two panels cover plate (1) is dismantled.
2. the method for detachable skeleton frock is dismantled in the provision for disengagement that a kind utilizes described in claim 1, it is characterised in that comprise the following steps:
1), before carrying out bone free ring optical fiber coiling, adopt one component room temperature cure silicone rubber that the screwed hole at screw (3) place and nut fill protection, and at the outer surface pad of wheel hub (2) around fine paper；
2) during dismounting, slidably fixing in the groove that post (8) is stuck in two panels cover plate (1) internal ring, and be covered on by outside protective covers (7) outside detachable skeleton frock, protection is wound on the optical fiber in detachable skeleton frock；Described outside protective covers (7) is hollow cylindrical housing；
3) silicone rubber at upper for cover plate (1) all nut places is removed, the more all screws (3) on cover plate (1) are screwed out；
4) two distances slidably fixed between post (8) are regulated, make slidably to fix post (8) to separate with the groove in a kind of detachable skeleton frock, again slidably card (9) is moved upward to and slidably fixes post (8) top, be successively stuck in for twice in the groove of two cover plate (1) internal ring；Start motor (15) band dynamic bearing (14) to rotate, rotate thus elevation cylinder platform (13) is rotated, successively two panels cover plate (1) is dismantled；
5) two distances slidably fixed between post (8) are regulated, slidably card (9) is made to be stuck in the surface of wheel hub (2), start motor (15) band dynamic bearing (14) lifting, thus elevation cylinder platform (13) lifting is rotated, wheel hub (2) is dismantled.
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