Auxiliary fiber placing frame for embedding composite material into fiber bragg grating
By designing composite material buried fiber grating auxiliary fiber release racks, the limiting components and traction components are used to solve the damage problems of fiber grating during the engraving and burying process, achieving efficient wire release of fiber grating and improving the stability of sensor products.
Patent Information
- Application Number
- CN202422589020.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In the prior art, fiber gratings are easily damaged during the engraving and burying process, and when the fiber grating is drawn out on the optical fiber disc, it is easy to cause friction damage due to uneven force and velocity changes, resulting in optical fiber breakage, affecting the pass rate and cost of sensor products.
Design composite materials to be buried in fiber grating auxiliary fiber release racks. Through the combination of limiting components and traction components, limiting and traction of optical fibers of different specifications can be achieved, ensuring that the fibers are subjected to uniform stress during the wiring release process and avoid frictional damage.
It improves the wiring efficiency of fiber gratings, reduces fiber fracture and looseness, improves the pass rate of sensor products and reduces production costs.
Smart Images
Figure CN223188644U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite material embedded optical fiber grating, in particular to a composite material embedded optical fiber grating auxiliary fiber placing frame. Background Art
[0002] Composite materials are new materials that are made by optimizing and combining different material components using advanced material preparation technology. Generally speaking, composite materials must meet the following conditions:
[0003] (1) Composite materials must be man-made and are materials designed and manufactured by people according to their needs;
[0004] (2) Composite materials must be composed of two or more material components with different chemical and physical properties, combined in a designed form, proportion, and distribution, with clear interfaces between the components;
[0005] (3) It has structural designability and can be used for composite structure design;
[0006] (4) Composite materials not only maintain the advantages of the properties of each component material, but also can obtain comprehensive properties that cannot be achieved by a single component material through the complementarity and correlation of the properties of each component.
[0007] Composite material matrix materials are categorized into two main groups: metals and non-metals. Common metal matrices include aluminum, magnesium, copper, titanium, and their alloys. Non-metal matrices primarily include synthetic resins, rubber, ceramics, graphite, and carbon. Reinforcement materials primarily include glass fiber, carbon fiber, boron fiber, aramid fiber, silicon carbide fiber, asbestos fiber, whiskers, and metals.
[0008] Composite materials are mixtures. They have played a significant role in many fields, replacing many traditional materials. Composite materials are categorized by their composition into metal-metal composites, non-metal-metal composites, and non-metal-non-metal composites. Based on their structural characteristics, they are further divided into the following: ① Fiber-reinforced composites. These are formed by placing various fiber reinforcements within a matrix material. Examples include fiber-reinforced plastics and fiber-reinforced metals. ② Sandwich composites. These are composed of a combination of surface materials and core materials with different properties. The surface material is typically high-strength and thin, while the core material is lightweight and low-strength, but possesses a certain degree of stiffness and thickness. They are categorized into solid sandwich and honeycomb sandwich. ③ Fine-grained composites. These are formed by uniformly distributing hard fine particles within a matrix, such as dispersion-strengthened alloys and cermets. ④ Hybrid composites. These are formed by blending two or more reinforcement phase materials into a single matrix phase material. Compared to conventional single-reinforcement composites, they exhibit significantly improved impact strength, fatigue strength, and fracture toughness, and possess unique thermal expansion properties. They are categorized into intra-layer hybrids, inter-layer hybrids, sandwich hybrids, intra-layer / inter-layer hybrids, and super-hybrid composites.
[0009] The company has developed a proprietary direct-write method for fiber Bragg gratings. Currently, stripping-coating fiber Bragg gratings on the market use a process called stripping-coating. Gratings are written and then re-coated, which damages the original fiber's strength. Air, contact with the grating during fabrication, and external dust can also cause damage to the fiber, which is difficult to detect with the naked eye. After re-coating, the fiber's original coating becomes incompatible, revealing a cross-section. At this point, the fiber's strength decreases dramatically at the stripped surface and at the grating location.
[0010] When writing fiber Bragg gratings using the direct-write method, the fiber undergoes a series of preparatory steps, such as rewinding and splitting. Due to problems with the equipment or fiber coating materials, the fiber and the grating may be damaged after the grating is written.
[0011] Because the industry lacks the appropriate product strength testing equipment for finished fiber Bragg gratings (FBGs), they are prone to breakage during subsequent sensor production, preventing light signals from passing through. This significantly reduces the sensor production yield and increases product costs.
[0012] However, this patent still has certain shortcomings when used. The existing method of anchoring the composite material is to place the fiber optic Bragg grating disk on a rod and introduce the fiber optic Bragg grating to carry or pull the disk for movement. However, this process is prone to uneven force, which causes the stretched optical fiber to generate mutual uneven force and cause friction damage to the optical fiber. At the same time, due to the different speeds of fiber movement, the fiber optic Bragg grating loosens and tightens after detaching from the disk, causing unnecessary damage. Although the prestress of the fiber optic Bragg grating disk can be coordinated, the optical fiber is easy to spread out or stacked in the disk, and the optical fiber cannot be normally led out. At the same time, it is also impossible to adjust and follow the speed of the fiber at a uniform speed. Therefore, it is necessary to design a composite material embedded fiber optic Bragg grating auxiliary fiber release rack to solve the problem that the composite material fiber will be wound in different directions when it is circularly wound onto an object, and there will be changes in speed and tensile force, and sometimes pauses, which can easily cause the fiber optic Bragg grating to become loose when buried, resulting in the optical fiber stacking being unable to be led out and pulled apart. Utility Model Content
[0013] The purpose of the utility model is to provide a composite material embedded optical fiber Bragg grating auxiliary fiber-laying frame to solve the problems raised in the above background technology.
[0014] To achieve the above objectives, the present invention provides the following technical solutions:
[0015] The composite material is embedded in the optical fiber Bragg grating auxiliary fiber release frame, including an adjusting part, a movable groove is provided on the side of the adjusting part, and a plurality of limit pin holes are provided on both sides of the adjusting part. A limit assembly is provided inside the adjusting part, and the limit assembly includes a movable block that is slidably connected to the inside of the adjusting part, a support seat is provided on the top of the movable block, the support seat and the top of the adjusting part are slidably connected, a roller is provided on the side of the support seat, and the roller is rotatably connected to the support seat, and sliders are fixedly connected on both sides of the movable block, and the bottom of the slider is rotatably connected to the rotating block through a rotating rod, a sliding groove is provided inside the rotating block, a pull block is provided on the side of the rotating block, and the side of the pull block is fixedly connected to the limit lock pin.
[0016] As a preferred solution of the present invention, the limit lock pin and the limit pin hole are plugged in, a limit block is provided on the outside of the limit lock pin, a spring is provided on the outside of the limit lock pin, one end of the spring is elastically connected to the limit block, and the other end of the spring is elastically connected to the inner wall of the sliding groove.
[0017] As a preferred solution of the present invention, the sides of the adjusting member are fixedly connected with a fixing block and a fixing plate respectively, the top of the fixing plate is provided with a traction assembly, and the traction assembly includes a fixing seat fixedly connected to the top of the fixing plate.
[0018] As a preferred solution of the present invention, both sides of the fixing seat are fixedly connected to the fixing blocks respectively, a driving motor is fixedly installed inside the fixing seat, and an output end of the driving motor is fixedly connected to a second rotating column.
[0019] As a preferred solution of the present invention, the second rotating column is respectively provided with a second traction wheel and a driving gear on the outside, the fixed seat is internally rotatably connected to the first rotating column, and the first rotating column is respectively provided with a first traction wheel and a driven gear on the outside.
[0020] As a preferred solution of the present invention, an auxiliary gear is provided on the side of the driven gear, the auxiliary gear is rotationally connected to the inside of the fixing seat, and the outside of the auxiliary gear is respectively meshed with the driven gear and the driving gear.
[0021] As a preferred solution of the present invention, both sides of the adjusting member are fixedly connected to a fixing frame, the side of the fixing frame is rotatably connected to a rotating shaft, an optical fiber disk is provided outside the rotating shaft, and an optical fiber body is wound around the outside of the optical fiber disk.
[0022] As a preferred solution of the present invention, the outside of the optical fiber body is slidingly connected to the roller, and the outside of the optical fiber body is rotationally connected to the first traction wheel and the second traction wheel respectively.
[0023] Compared with the prior art, the beneficial effects of the present invention are:
[0024] 1. In the utility model, by setting a limit component, it is possible to limit optical fibers of different specifications. By pushing the moving block to slide in the adjusting member, the distance between the two rollers is adjusted, so that the device can adapt to optical fiber disks of different specifications, thereby improving the pay-off efficiency of the fiber optic Bragg grating. After adjusting the distance between the two rollers, the pulling block is pulled in opposite directions, and then the rotating block is rotated to align the locking pin and the limit pin hole. Then the pulling block is released. Under the action of the spring rebound, the moving block is effectively prevented from moving due to external force, thereby affecting the pay-off process of the optical fiber, thereby improving the pay-off efficiency of the fiber optic Bragg grating.
[0025] 2. In the present invention, by setting a traction assembly, the traction of the optical fiber is achieved. Before paying out the line, the optical fiber body is first passed through the fixing seat, and then the switch of the driving motor is controlled to be turned on. The driving motor drives the driven gear to rotate through the driving gear and the auxiliary gear, thereby rotating the first traction wheel and the second traction wheel. Since the first traction wheel and the second traction wheel are in contact with the outside of the optical fiber body, when the first traction wheel and the second traction wheel rotate, the optical fiber body follows the rotation of the first traction wheel and the second traction wheel and moves outward, so that the optical fiber body can be led out normally, thereby reducing the situation where the optical fiber Bragg grating becomes loose when buried, resulting in the optical fiber stack being unable to be led out and being pulled apart. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is an overall schematic diagram of the utility model;
[0027] Figure 2 It is a schematic diagram of the overall cross section of the utility model;
[0028] Figure 3 This is a schematic diagram of the traction assembly of the present utility model;
[0029] Figure 4 This is a schematic diagram of the limit assembly of the utility model;
[0030] Figure 5 It is a partial schematic diagram of the limiting component of the utility model.
[0031] In the figure: 1. adjusting member; 2. moving groove; 3. limiting pin hole; 4. fixing frame; 5. rotating shaft; 6. optical fiber disk; 7. optical fiber body; 8. limiting assembly; 9. fixing block; 10. fixing plate; 11. traction assembly; 801. moving block; 802. supporting seat; 803. roller; 804. slider; 805. rotating rod; 806. rotating block; 807. locking pin; 808. sliding groove; 809. spring; 810. pulling block; 811. limiting block; 1101. fixing seat; 1102. first rotating column; 1103. first traction wheel; 1104. driven gear; 1105. auxiliary gear; 1106. second rotating column; 1107. second traction wheel; 1108. driving gear; 1109. driving motor. DETAILED DESCRIPTION
[0032] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0033] For examples, see Figure 1-5 , the utility model provides a technical solution:
[0034] A composite material embedded fiber Bragg grating auxiliary fiber release frame includes an adjusting part 1, a movable groove 2 is provided on the side of the adjusting part 1, a plurality of limit pin holes 3 are opened on both sides of the adjusting part 1, a limit assembly 8 is provided inside the adjusting part 1, a fixed block 9 and a fixed plate 10 are fixedly connected to the side of the adjusting part 1, a traction assembly 11 is provided on the top of the fixed plate 10, both sides of the adjusting part 1 are fixedly connected to a fixing frame 4, the side of the fixing frame 4 is rotatably connected to a rotating shaft 5, a fiber optic disc 6 is provided on the outside of the rotating shaft 5, a fiber optic body 7 is wound around the outside of the fiber optic disc 6, the outside of the fiber optic body 7 is slidably connected to the roller 803, and the outside of the fiber optic body 7 is rotatably connected to the first traction wheel 1103 and the second traction wheel 1107.
[0035] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, the limit assembly 8 includes a moving block 801 that is slidably connected to the inside of the adjusting member 1, a support seat 802 is provided on the top of the moving block 801, and the support seat 802 is slidably connected to the top of the adjusting member 1, and a roller 803 is provided on the side of the support seat 802. The roller 803 is rotatably connected to the support seat 802, and both sides of the moving block 801 are fixedly connected to sliders 804. The bottom of the slider 804 is rotatably connected to the rotating block 806 through a rotating rod 805. A sliding groove 808 is provided inside the rotating block 806, and a pulling block 810 is provided on the side of the rotating block 806. The side of the pulling block 810 is fixedly connected to a limiting lock pin 807, and the limiting lock pin 807 is plugged into the limiting pin hole 3. A limiting block 811 is provided on the outside of the limiting lock pin 807, and a spring 809 is provided on the outside of the limiting lock pin 807. One end of the spring 809 is elastically connected to the limiting block 811, and the other end of the spring 809 is elastically connected to the inner wall of the sliding groove 808.
[0036] Among them, by setting the limit component 8, the limit of optical fibers of different specifications is achieved. By pushing the moving block 801 to slide in the adjusting member 1, the distance between the two rollers 803 is adjusted, so that the device can adapt to optical fiber disks 6 of different specifications, thereby improving the efficiency of fiber optic Bragg grating pay-out. After adjusting the distance between the two rollers 803, the pulling block 810 is pulled in opposite directions, and then the rotating block 806 is rotated to align the locking pin 807 and the limit pin hole 3, and then the pulling block 810 is released. Under the action of the rebound of the spring 809, the moving block 801 is effectively prevented from moving due to external force, thereby affecting the optical fiber pay-out process, thereby improving the pay-out efficiency of the fiber optic Bragg grating.
[0037] In this embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, the traction assembly 11 includes a fixed base 1101 fixedly connected to the top of the fixed plate 10, and both sides of the fixed base 1101 are fixedly connected to the fixed block 9 respectively. A driving motor 1109 is fixedly installed inside the fixed base 1101, and the output end of the driving motor 1109 is fixedly connected to the second rotating column 1106. The outside of the second rotating column 1106 is respectively provided with a second traction wheel 1107 and a driving gear 1108. The inside of the fixed base 1101 is rotatably connected to the first rotating column 1102, and the outside of the first rotating column 1102 is respectively provided with a first traction wheel 1103 and a driven gear 1104. An auxiliary gear 1105 is provided on the side of the driven gear 1104. The auxiliary gear 1105 is rotatably connected to the inside of the fixed base 1101, and the outside of the auxiliary gear 1105 is respectively meshed with the driven gear 1104 and the driving gear 1108.
[0038] Among them, by setting up the traction component 11, the optical fiber is pulled. Before paying out the line, the optical fiber body 7 is first passed through the fixed seat 1101, and then the switch of the driving motor 1109 is controlled to be turned on. The driving motor 1109 drives the driven gear 1104 to rotate through the active gear 1108 and the auxiliary gear 1105, thereby rotating the first traction wheel 1103 and the second traction wheel 1107. Since the first traction wheel 1103 and the second traction wheel 1107 are in contact with the outside of the optical fiber body 7, when the first traction wheel 1103 and the second traction wheel 1107 rotate, the optical fiber body 7 follows the rotation of the first traction wheel 1103 and the second traction wheel 1107 and moves outward, so that the optical fiber body 7 can be led out normally, thereby reducing the situation where the optical fiber grating becomes loose when buried, resulting in the optical fiber stack being unable to be led out and being pulled apart.
[0039] The working process of the utility model is as follows: when the composite material designed by the present invention is used to embed the fiber Bragg grating auxiliary fiber-laying rack, the fiber disc 6 is first installed on the outside of the rotating shaft 5, and then the fiber body 7 is passed through the fixed seat 1101. Then, by pushing the moving block 801 to slide in the adjusting member 1, the distance between the two rollers 803 is adjusted, so that the device can adapt to fiber discs 6 of different specifications, thereby improving the embedding efficiency of the fiber Bragg grating. After adjusting the distance between the two rollers 803, the pulling block 810 is pulled in the opposite direction, and then the rotating block 806 is rotated to align the locking pin 807 with the limit pin hole 3, and then the pulling block 810 is released, and the spring 809 is released. Under the action of rebound, the moving block 801 is effectively prevented from moving due to external force, and then the switch of the driving motor 1109 is controlled to be turned on. The driving motor 1109 drives the driven gear 1104 to rotate through the active gear 1108 and the auxiliary gear 1105, thereby rotating the first traction wheel 1103 and the second traction wheel 1107. Since the first traction wheel 1103 and the second traction wheel 1107 are in contact with the outside of the optical fiber body 7, when the first traction wheel 1103 and the second traction wheel 1107 rotate, the optical fiber body 7 follows the rotation of the first traction wheel 1103 and the second traction wheel 1107 and moves outward, so that the optical fiber body 7 can be led out normally.
[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A composite material embedded fiber Bragg grating auxiliary fiber-laying frame, comprising an adjusting member (1), characterized in that: The side of the adjusting member (1) is provided with a moving groove (2), and both sides of the adjusting member (1) are provided with a plurality of limiting pin holes (3). The interior of the adjusting member (1) is provided with a limiting assembly (8), and the limiting assembly (8) includes a moving block (801) slidably connected to the interior of the adjusting member (1), and a support seat (802) is provided on the top of the moving block (801), and the support seat (802) is slidably connected to the top of the adjusting member (1). The side of the support seat (802) is provided with a A roller (803) is provided, and the roller (803) and the support seat (802) are rotatably connected. Slide blocks (804) are fixedly connected to both sides of the moving block (801). The bottom of the slide block (804) is rotatably connected to a rotating block (806) via a rotating rod (805). A sliding groove (808) is provided inside the rotating block (806). A pulling block (810) is provided on the side of the rotating block (806), and a limiting locking pin (807) is fixedly connected to the side of the pulling block (810).
2. The composite material embedded fiber Bragg grating auxiliary fiber-laying frame according to claim 1, characterized in that: The limiting lock pin (807) is plugged into the limiting pin hole (3), a limiting block (811) is provided on the outside of the limiting lock pin (807), a spring (809) is provided on the outside of the limiting lock pin (807), one end of the spring (809) is elastically connected to the limiting block (811), and the other end of the spring (809) is elastically connected to the inner wall of the sliding groove (808).
3. The composite material embedded fiber Bragg grating auxiliary fiber placement frame according to claim 1, characterized in that: A fixing block (9) and a fixing plate (10) are fixedly connected to the side surfaces of the adjusting member (1), and a traction assembly (11) is provided on the top of the fixing plate (10). The traction assembly (11) includes a fixing seat (1101) fixedly connected to the top of the fixing plate (10).
4. The composite material embedded fiber Bragg grating auxiliary fiber-laying frame according to claim 3, characterized in that: Both sides of the fixing seat (1101) are fixedly connected to the fixing block (9), respectively. A driving motor (1109) is fixedly installed inside the fixing seat (1101), and an output end of the driving motor (1109) is fixedly connected to a second rotating column (1106).
5. The composite material embedded fiber Bragg grating auxiliary fiber placement frame according to claim 4, characterized in that: The second rotating column (1106) is provided with a second traction wheel (1107) and a driving gear (1108) on the outside, the fixed seat (1101) is internally rotatably connected to the first rotating column (1102), and the first rotating column (1102) is provided with a first traction wheel (1103) and a driven gear (1104) on the outside.
6. The composite material embedded fiber Bragg grating auxiliary fiber-laying frame according to claim 5, characterized in that: An auxiliary gear (1105) is provided on the side of the driven gear (1104), the auxiliary gear (1105) is rotatably connected to the interior of the fixed seat (1101), and the exterior of the auxiliary gear (1105) is meshedly connected to the driven gear (1104) and the driving gear (1108), respectively.
7. The composite material embedded fiber Bragg grating auxiliary fiber placement frame according to claim 1, characterized in that: Both sides of the adjusting member (1) are fixedly connected to a fixing frame (4), the side of the fixing frame (4) is rotatably connected to a rotating shaft (5), an optical fiber disc (6) is provided on the outside of the rotating shaft (5), and an optical fiber body (7) is wound around the outside of the optical fiber disc (6).
8. The composite material embedded fiber Bragg grating auxiliary fiber-laying frame according to claim 7, characterized in that: The outside of the optical fiber body (7) is slidably connected to the roller (803), and the outside of the optical fiber body (7) is rotationally connected to the first traction wheel (1103) and the second traction wheel (1107).