Butt-joint type single-core optical rotating connector with optical fiber collimator and installation method thereof

A technology of optical fiber collimator and rotary connector, which is applied in the direction of light guide, optics, instrument, etc., can solve the problems of collimator and rotation axis angle and position error, device instability, etc., to reduce processing accuracy and labor force , easy-to-operate effect

Pending Publication Date: 2019-01-18
上海传输线研究所
0 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a fiber optic collimator docking type single-core optical rotary connector, which can solve the instability of the device caused by the bearing gap of the optical rotary connector, and p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

The invention discloses a butt-joint type single-core optical rotating connector with an optical fiber collimator and an installation method thereof. The butt-joint type single-core optical rotating connector with the optical fiber collimator comprises rotating end optical fiber collimators, stationary end optical fiber collimators, rotors, bearing assemblies, stationary end installation covers and installation shells. The bearing assemblies comprise first bearings, second bearings and bearing blocking rings. The butt-joint type single-core optical rotating connector is characterized in that the bearing assemblies are fixed between the rotors and the installation shells, and elastic elements are located between bearings and the installation covers. According to the butt-joint type single-core optical rotating connector with the optical fiber collimator, the bearings can be compressed, clearance in the axial direction is reduced, and stability of components under the conditions of temperature change and vibration impact is improved. According to the installation method of the butt-joint type single-core optical rotating connector with the optical fiber collimator, the problem of angle and position errors between the optical rotating connector and rotating shafts during installation is solved, and the collimator can be installed quickly and effectively.

Application Domain

Technology Topic

Image

  • Butt-joint type single-core optical rotating connector with optical fiber collimator and installation method thereof
  • Butt-joint type single-core optical rotating connector with optical fiber collimator and installation method thereof
  • Butt-joint type single-core optical rotating connector with optical fiber collimator and installation method thereof

Examples

  • Experimental program(1)

Example Embodiment

[0039] The present invention will be further described below with reference to the drawings and embodiments.
[0040] figure 1 It is a schematic diagram of the structure of a butting single-core optical rotary connector of the fiber collimator of the present invention. As shown in the figure, it includes a rotating end fiber collimator 1, a stationary end fiber collimator 2, a rotor 3, a bearing assembly and a mounting shell 7. The bearing assembly is located between the rotor 3 and the mounting housing 7, the bearing outer ring is in interference connection with the mounting housing 7, the bearing inner ring is in interference connection with the rotor 3, and an elastic element 5 is used on one side of the bearing assembly. The elastic element 5 is concentric with the two bearings, one side is in contact with the outer ring of the first bearing 41, and the other side is in contact with the mounting housing 7; the elastic element 5 is a wave spring or a wave spring arranged between the mounting housing 7 and one side of the bearing assembly Butterfly spring; compress the elastic parts to an appropriate force value during installation. At this time, the inner ring and outer ring of the bearing move in two directions respectively, which eliminates the gap between the balls between the inner ring and the outer ring, and makes it rotate The time path is more stable. The optical fiber collimator butt-matching single-core optical rotary connector also includes a stationary end mounting cover 6 fixed in the mounting housing 7. The rotating end optical fiber collimator 1 is fixed in the center hole of the rotor 3, and the stationary end optical fiber is collimated The device 2 is fixed in the center hole of the stationary end mounting cover 6. The bearing assembly includes a first bearing 41, a second bearing 42 and a bearing retainer ring 43; the bearing retainer ring 43 is located between the first bearing 41 and the second bearing 42; the stationary end mounting cover 6 is located on the left side of the second bearing 42 and is connected to The mounting housing 7 is fitted with threads; the elastic element 5 is located on the right side of the first bearing 41.
[0041] figure 2 It is a schematic diagram of the installation of the optical rotary connector collimator provided by the present invention. The installation method is as follows:
[0042] The first step is to adjust the position of the connector assembly on the fine adjustment frame so that the optical axis of the beam emitted by the optical fiber collimator 1 at the rotating end is parallel to the rotation axis of the rotor 3. The specific steps are as follows:
[0043] Use auxiliary devices 8 (e.g. image 3 ), connect the mounting hole 83 with the rotor 3 with screws, and connect the angle beam sensitive unit 811 (in this embodiment, a rhombic prism or a coated transparent glass plate, see Figure 4 , Figure 5 ) Is fixed on the fixing surface 82 and fixed by hot melt glue or other easy-to-clean glue. The angle beam sensing unit 811, the light hole 84 and the central hole of the rotor 3 of the auxiliary device 8 are basically located at the same center. Adjust the connector assembly located between the two collimators so that when the rotor 3 is rotating, the light beam emitted by the rotating end fiber collimator 1 passes through the center hole of the rotor 3 and is received by the stationary end fiber collimator 2 If the light power does not change, the optical axis of the beam is parallel to the rotation axis of the rotor 3;
[0044] The second step is to adjust the position of the connector assembly on the fine adjustment frame so that the optical axis of the beam emitted by the optical fiber collimator 1 at the rotating end coincides with the rotating axis of the rotor 3. The specific steps are as follows:
[0045] Then use the auxiliary device 8 to replace the position beam sensing unit 812 with the angle beam sensing unit 811 in step S1 (this embodiment is a plate glass with a variable transmittance, see Image 6 ) Fix it at the center hole of the rotor 3 with hot melt glue or other easy-to-clean glue, rotate the rotor 3, adjust the connector assembly between the two collimators, so that when the rotor 3 is rotating, the optical fiber at the rotating end is aligned The optical power of the light beam emitted by the device 1 after passing through the central hole of the rotor 3 and received by the stationary end fiber collimator 2 does not change, and the optical axis of the beam coincides with the rotation axis of the rotor 3;
[0046] The third step is to remove the auxiliary device 8 and the position beam sensing unit 812 on the auxiliary device, translate the rotating end fiber collimator 1 into the central mounting hole of the rotor 3 and fix it, and translate the stationary end fiber collimator 2 to a stationary position Install the cover 5 in the center installation hole and fix it to complete the installation.
[0047] Figure 4 It is a schematic diagram of the principle of the angle sensitive unit 811 provided by the present invention. The angle sensitive unit 811 may be a prism, the left and right end faces of which are parallel. When the light beam passes through the prism, the optical axis of the light beam travels with a translation D. The angle between the incident beam and the prism is different, and the translation distance D of the optical axis is also different.
[0048] Figure 5 It is a schematic diagram of the principle of another angle sensitive unit 811 provided by the present invention. The angle sensitive unit 811 can also be a surface-coated light-transmitting glass plate. The coating of the glass plate makes the transmittance of the glass plate sensitive to the incident angle of the light beam. The angle of the incident light beam and the glass plate is different, and the power that passes through the glass plate is also different.
[0049] Image 6 It is a schematic diagram of the principle of the position beam sensing unit 812 provided by the present invention. The position beam sensing unit 812 is a light-transmitting glass plate, which is coated with a film or printed with a gradual pattern, so that the loss of the light beam passing through different positions of the glass plate is different. Eventually, the optical power received by the fiber collimator will change.
[0050] The invention adopts a new type of optical fiber rotary connector structure. Due to the existence of elastic elements, the internal axial gap during assembly of the rotary connector can be maintained continuously, and the environmental stability of the performance of the optical fiber rotary connector is improved; Keep the pressure within a certain range within the range, which can also reduce the machining accuracy of the axial dimensions of each part and reduce the cost of the product.
[0051] In the installation method of the present invention, the angle beam sensor and the position beam sensor are used to eliminate the misjudgment of rotation when the optical fiber collimator is installed in the rotating shaft, and solve the problem of collimating the optical rotary connector during the installation process. There are angle and position errors between the actuator and the rotating shaft. The auxiliary device used is simple in structure, easy to adjust and low cost.
[0052] Although the present invention has been disclosed as above in the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be as defined in the claims.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Organic photovoltaic cell with active layer doped with antioxidant and preparation method thereof

InactiveCN101976727AImprove environmental stabilityImprove photoelectric conversion efficiency and stabilitySolid-state devicesSemiconductor/solid-state device manufacturingChemistryMetal backed
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Conducting film integrated structure

InactiveCN101634918AThe effect is stableImprove environmental stabilityInput/output processes for data processingElectrically conductiveWavelength range
Owner:廖翔霖 +1

Classification and recommendation of technical efficacy words

  • Reduce machining accuracy
  • Improve environmental stability

Conducting film integrated structure

InactiveCN101634918AThe effect is stableImprove environmental stabilityInput/output processes for data processingElectrically conductiveWavelength range
Owner:廖翔霖 +1

Organic photovoltaic cell with active layer doped with antioxidant and preparation method thereof

InactiveCN101976727AImprove environmental stabilityImprove photoelectric conversion efficiency and stabilitySolid-state devicesSemiconductor/solid-state device manufacturingChemistryMetal backed
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products