CN115685453A

CN115685453A - High-voltage-resistant optical fiber slip ring

Info

Publication number: CN115685453A
Application number: CN202211626690.2A
Authority: CN
Inventors: 谢荷辉
Original assignee: Hefei Zhihe Optoelectronics Co ltd
Current assignee: Hefei Zhihe Optoelectronics Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-02-03

Abstract

The invention relates to a high-pressure-resistant optical fiber slip ring which comprises a slip ring body with a sealed structure, wherein an optical signal transmission part A and an optical signal transmission part B are arranged in the slip ring body, the optical signal transmission part A and the optical signal transmission part B are correspondingly arranged for transmitting optical signals, and a pressure compensation liquid is filled in an inner cavity of the slip ring body and has light guide performance. According to the scheme provided by the invention, the inner cavity is filled with the pressure compensation liquid, and the pressure compensation liquid in the inner cavity can realize pressure compensation in a high-pressure state, so that the product damage caused by overlarge internal and external pressure difference is avoided, the application range of the product is enlarged, and the volume of the product is reduced.

Description

High-voltage-resistant optical fiber slip ring

Technical Field

The invention relates to the field of slip rings, in particular to a high-pressure-resistant optical fiber slip ring.

Background

The slip ring is an electrical component responsible for communicating the rotating body and transmitting energy and signals. The slip rings are classified into electrical slip rings, fluid slip rings and optical slip rings according to transmission media, and can also be commonly called as rotary communication or rotary communication. The slip ring is usually installed at the rotation center of the equipment and mainly comprises a rotating part and a static part. The rotating part is connected with and rotates with the rotating structure of the equipment and is called as a rotor, the stationary part is connected with the energy source of the fixed structure of the equipment and is called as a stator, and the optical slip ring realizes the transmission of optical signals through the optical rotary coupling of the stator end and the rotor end. The coupling medium of the smooth ring stator end and the rotor end optical signal on the market at present is mostly air, the inside of the slip ring is hollow, the external deformation of the product and the existence of the polluted condition inside are easy to appear due to the inconsistency of the internal pressure and the external pressure in a high-pressure environment, so that the product is invalid, the internal structure of some pressure-resistant slip rings on the market is still air, the pressure-resistant effect is achieved by increasing the thickness of the shell of the slip ring, and the slip ring has the defects of large structural volume, high manufacturing cost, complex structure and difficult installation.

Disclosure of Invention

The invention aims to provide a high-pressure-resistant optical fiber slip ring which can realize pressure compensation in a high-pressure state and avoid product damage caused by overlarge internal and external pressure difference.

The technical scheme adopted by the invention is as follows.

A high-pressure resistant fiber optic slip ring, comprising: the slip ring comprises a slip ring body with a sealed structure, wherein an optical signal transmission part A and an optical signal transmission part B are arranged in the slip ring body, the optical signal transmission part A and the optical signal transmission part B are correspondingly arranged and used for transmitting optical signals, and pressure compensation liquid is filled in an inner cavity of the slip ring body and has light guide performance.

The specific scheme is as follows: the pressure compensation liquid is silicone oil.

The sliding ring body includes the casing, end cover and ring flange, the end cover assembly is in the one end of casing, the ring flange assembly is at the other end of casing, A optical signal transmission portion includes A lock pin and A connector, B optical signal transmission portion includes B lock pin and B connector, the outside of ring flange sets up the driving piece, the assembly of A connector is on the driving piece, the assembly of B connector is on the end cover, the A lock pin, the assembly of B lock pin encloses the inner chamber that closes between casing and ring flange, the A connector, the driving piece, seal assembly through A seal assembly between the ring flange, the B connector, the end cover, seal assembly through B seal assembly between the casing, seal assembly through C seal assembly carries out seal assembly between ring flange and the casing and connects.

The one end fixed mounting of A lock pin is on the driving piece, and the middle part of A lock pin passes through bearing assembly and slip ring body rotation assembly, and the one end of B lock pin passes through installation component and slip ring body fixed mounting, the other end of A lock pin and sheathed tube one end be assembled between/be connected between, the other end of B lock pin and the other end rotation assembly of sleeve pipe.

The sleeve is a ceramic sleeve.

The middle pipe body of the sleeve is provided with a through hole.

Be provided with the oil filler point on the shell, oil filler point department is provided with the stifled hole spare of detachable assembly.

Still include to being used for carrying out the fixed cover fixed to bearing unit, the installation component includes carries out the fixed mounting to the one end of B lock pin, adopts the threaded connection mode to carry out the erection joint between mounting and the fixed cover.

The sealing assembly A comprises a sealing gasket A, a universal plug seal A, one side of a driving piece, which is close to a connector A, is provided with a mounting hole part A1, the connector A is inserted into the mounting hole part A1 and is sealed through the sealing gasket A, one side of a flange plate, which is close to the driving piece, is provided with a mounting hole part A2, the driving piece is inserted into the mounting hole part A2 and is sealed through the universal plug seal A, the sealing assembly B comprises a sealing gasket B1, a sealing gasket B2 and a sealing ring B, one side of an end cover, which is close to the connector B, is provided with a sealing gasket B, the connecting gasket B is inserted into the sealing pipe part B and is sealed through the sealing gasket B1, the end face of the shell is provided with a sealing hole B and a sealing ring B, the sealing ring B is located in the center of the end of the shell, the sealing ring B and the sealing hole are concentrically arranged, the sealing ring B is located on the outer side of the sealing ring B, the sealing ring B is assembled in the sealing ring B assembling hole, the sealing ring B is assembled in the sealing ring B sealing ring assembling in the sealing ring B, and the end cover and the shell, and the shell are hermetically assembled through the sealing ring B2.

The end face of the flange plate, close to one side of the shell, is provided with a C-shaped annular groove, the C-shaped sealing assembly comprises a C-shaped sealing ring, the C-shaped sealing ring is assembled in the C-shaped annular sealing groove, and the flange plate and the shell are hermetically assembled through the C-shaped sealing ring.

According to the scheme provided by the invention, the inner cavity is filled with the pressure compensation liquid, and the pressure compensation liquid in the inner cavity can realize pressure compensation under a high-pressure state, so that the product damage caused by overlarge internal and external pressure difference is avoided, the application range of the product is enlarged, and the volume of the product is reduced. And through the setting of ceramic bushing and lock pin, simplified the inner structure of product, the cost is reduced and easy to assemble.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

FIG. 3 is an assembly schematic diagram of the A ferrule and the B ferrule.

The corresponding relationship between the components and the reference numbers is as follows: 11-A connector, 12-driving piece, 13-flange plate, 14-shell, 141-oil hole, 15-end cover, 16-B connector, 21-A sealing gasket, 22-A flooding plug seal, 23-B1 sealing gasket, 24-B2 sealing gasket, 25-B sealing ring, 26-C sealing ring, 31-A core insert, 32-B core insert, 33-ceramic sleeve, 34-through hole, 35-fixing sleeve, 36-fixing piece and 37-bearing assembly.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

As shown in fig. 1, 2, and 3, a high-pressure-resistant optical fiber slip ring comprises a slip ring body with a sealed structure, wherein an optical signal transmission part a and an optical signal transmission part B are arranged in the slip ring body, the optical signal transmission parts a and the optical signal transmission parts B are correspondingly arranged to transmit optical signals, and a pressure compensation liquid is filled in an inner cavity of the slip ring body and has a light guide performance. According to the scheme provided by the invention, the inner cavity is filled with the pressure compensation liquid, and the pressure compensation liquid in the inner cavity can realize pressure compensation under a high-pressure state, so that the product damage caused by overlarge internal and external pressure difference is avoided, the application range of the product is enlarged, and the volume of the product is reduced.

The specific scheme is as follows: the pressure compensation liquid is silicone oil. The slip ring body comprises a shell 14, an end cover 15 and a flange 13, wherein the end cover 15 is assembled at one end of the shell 14, the flange 13 is assembled at the other end of the shell 14, an A optical signal transmission part comprises an A insertion core 31 and an A connector 11, a B optical signal transmission part comprises a B insertion core 32 and a B connector 16, a driving part 12 is arranged on the outer side of the flange 13, the A connector 11 is assembled on the driving part 12, the B connector 16 is assembled on the end cover 15, the A insertion core 31 and the B insertion core 32 are assembled in an inner cavity enclosed between the shell 14 and the flange 13, the A connector 11, the driving part 12 and the flange 13 are hermetically assembled through an A sealing assembly, the B connector 16, the end cover 15 and the shell 14 are hermetically assembled through a B sealing assembly, and the flange 13 and the shell 14 are hermetically assembled and connected through a C sealing assembly. One end of the A inserting core 31 is fixedly assembled on the driving part 12, the middle part of the A inserting core 31 is rotatably assembled with the sliding ring body through a bearing assembly 37, one end of the B inserting core 32 is fixedly assembled with the sliding ring body through a mounting assembly, the other end of the A inserting core 31 is assembled and connected with one end of the sleeve, and the other end of the B inserting core 32 is rotatably assembled with the other end of the sleeve. The bushing is a ceramic bushing 33. A through hole 34 is provided on the middle body of the sleeve. The A inserting core 31 can be prepared by the following method: a section of 1m single-mode optical fiber (G657A 2) is taken and welded with a section of GI optical fiber, the stripped length of the G657A2 optical fiber is 8.7mm, the length of the GI optical fiber is more than 5mm, an optical fiber welding machine is used for welding, the welded optical fiber penetrates into the LC customized ferrule a, and the section of the optical fiber coating layer is positioned at the ferrule bell mouth of the ferrule. The B ferrule 32 can be prepared by adopting the following method: a section of 1m single mode fiber (G657A 2) is taken and welded with a section of GI fiber, the stripping length of the G657A2 fiber is 4.2mm, the length of the GI fiber is more than 5mm, an optical fiber welding machine is used for welding, the welded fiber penetrates into the LC customized ferrule b, and the section of the fiber coating layer is positioned at the horn mouth of the ferrule. Through the arrangement of the ceramic sleeve 33 and the insertion core, the internal structure of the product is simplified, the cost is reduced, and the installation is convenient.

The A sealing assembly comprises an A sealing gasket 21 and an A cork seal 22, one side of the driving piece 12 close to the A connecting gasket 11 is provided with an A1 mounting hole part, the A connecting gasket 11 is inserted and assembled in the A1 mounting hole part and sealed through the A sealing gasket 21, one side of the flange plate 13 close to the driving piece 12 is provided with an A2 mounting hole part, the driving piece 12 is inserted and assembled in the A2 mounting hole part and sealed through the A cork seal 22 which is sleeved, the B sealing assembly comprises a B1 sealing gasket 23, a B2 sealing gasket 24 and a B sealing gasket 25, one side of the end cover 15 close to the B connecting gasket 16 is provided with a B mounting pipe part, the B connecting gasket 16 is inserted and assembled in the B mounting pipe part and sealed through the B1 sealing gasket 23, the end face of the shell 14 is provided with a B mounting hole and a B annular sealing groove, the B mounting hole is located at the center of the end of the shell 14, the B annular sealing gasket 24 and the B mounting hole are concentrically arranged, the B annular sealing groove is located outside the B mounting groove of the B2 sealing gasket 24 and the B sealing groove 25, and the B sealing groove is arranged between the end cover 15 and the shell 14. The end face of the flange plate 13 close to one side of the shell 14 is provided with a C-shaped annular groove, the C-shaped sealing assembly comprises a C-shaped sealing ring 26, the C-shaped sealing ring 26 is assembled in the C-shaped annular sealing groove, and the flange plate 13 and the shell 14 are hermetically assembled through the C-shaped sealing ring 26. Be provided with oil filler point 141 on the shell, oil filler point 141 department is provided with the stifled orifice fitting of detachable assembly. The mounting structure further comprises a fixing sleeve 35 used for fixing the bearing assembly 37, the mounting assembly comprises a fixing piece 36 used for fixing one end of the B inserting core 32, and the fixing piece 36 and the fixing sleeve 35 are in assembly connection in a threaded connection mode. The fixing sleeve 35 is formed by a reducing pipe body, and an external thread is arranged on the outer pipe wall of one end of the fixing sleeve 35 close to the B connector 16. The fixing member 36 is a variable diameter pipe, the B ferrule 32 is fixed at the end of the fixing member 36 close to the B connector 16, an internal thread is arranged on the inner pipe wall of the other end of the fixing member 36, and the internal thread and the external thread realize the threaded connection between the fixing member 36 and the fixing sleeve 35. In addition, a compression spring may be disposed in the tube of the fixing member 36 outside the end of the fixing sleeve 35, one end of the compression spring abuts against the end of the fixing sleeve 35, and the other end of the compression spring abuts against the inner table surface of the fixing member 36. The distance between the a ferrule 31 and the B ferrule 32 is adjusted by rotating the fixing member 36, which facilitates the adjustment of the a ferrule 31 and the B ferrule 32 to the optimum coupling state. The oil is filled into the inner cavity through the oil filling hole 141 on the shell, and then the oil filling hole 141 is blocked and sealed by a sealing piece and a hole blocking nail. The driving part 12 is connected with the driving motor through the transmission assembly, the driving part 12 drives the A inserting core 31 to rotate during working, and the A inserting core 31 and the B inserting core 32 are positioned through the ceramic sleeve 33 to realize optical signal coupling.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, mechanisms, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. A high-pressure resistant fiber optic slip ring, comprising: the slip ring comprises a slip ring body with a sealed structure, wherein an optical signal transmission part A and an optical signal transmission part B are arranged in the slip ring body, the optical signal transmission part A and the optical signal transmission part B are correspondingly arranged and used for transmitting optical signals, and pressure compensation liquid is filled in an inner cavity of the slip ring body and has light guide performance.

2. The high pressure resistant fiber optic slip ring of claim 1, wherein: the pressure compensation liquid is silicone oil.

3. High voltage resistant optical fiber slip ring according to claim 1 or 2, characterized in that: the sliding ring body includes the casing, end cover and ring flange, the end cover assembly is in the one end of casing, the ring flange assembly is at the other end of casing, A optical signal transmission portion includes A lock pin and A connector, B optical signal transmission portion includes B lock pin and B connector, the outside of ring flange sets up the driving piece, the assembly of A connector is on the driving piece, the assembly of B connector is on the end cover, the A lock pin, the assembly of B lock pin encloses the inner chamber of closing between casing and ring flange, the A connector, the driving piece, seal assembly through A seal assembly between the ring flange, the B connector, the end cover, seal assembly through B seal assembly between the casing, seal assembly through C seal assembly carries out seal assembly between ring flange and the casing and connects.

4. The high pressure resistant fiber optic slip ring of claim 3, wherein: one end of the A inserting core is fixedly assembled on the driving piece, the middle of the A inserting core is rotatably assembled with the sliding ring body through a bearing assembly, one end of the B inserting core is fixedly assembled with the sliding ring body through an installation assembly, the other end of the A inserting core is assembled with one end of the sleeve, and the other end of the B inserting core is rotatably assembled with the other end of the sleeve.

5. The high pressure resistant fiber optic slip ring of claim 4, wherein: the sleeve is a ceramic sleeve.

6. The high pressure resistant fiber optic slip ring of claim 4, wherein: the middle pipe body of the sleeve is provided with a through hole.

7. The high pressure resistant fiber optic slip ring of claim 3, wherein: be provided with the oil filler point on the shell, oil filler point department is provided with the stifled hole spare of detachable assembly.

8. The high pressure resistant fiber optic slip ring of claim 4, wherein: still include to being used for carrying out the fixed cover fixed to bearing unit, the installation component includes carries out the fixed mounting to the one end of B lock pin, adopts the threaded connection mode to carry out the erection joint between mounting and the fixed cover.

9. The high pressure resistant fiber optic slip ring of claim 4, wherein: the sealing assembly A comprises a sealing gasket A, a universal plug seal A, one side of the driving piece close to the connector A is provided with an installation hole portion A1, the connector A is inserted into the installation hole portion A1 and sealed through the sealing gasket A, one side of the flange plate close to the driving piece is provided with an installation hole portion A2, the driving piece is inserted into the installation hole portion A2 and sealed through the universal plug seal A which is sleeved with the universal plug seal A, the sealing assembly B comprises a sealing gasket B1, a sealing gasket B2 and a sealing ring B, one side of the end cover close to the connector B is provided with a sealing pipe portion B, the connecting gasket B is inserted into the assembly pipe portion B and sealed through the sealing gasket B1, the end face of the end portion of the shell is provided with a sealing hole B and a sealing ring B, the sealing ring B is located in the center of the end portion of the shell, the sealing ring B and the sealing hole are concentrically arranged, the sealing ring B is located on the outer side of the sealing hole B, the sealing gasket B is assembled in the sealing ring B sealing groove, the sealing ring is assembled in the sealing ring B sealing groove, and the sealing ring B sealing ring is assembled between the end cover and the shell through the B2.

10. The high pressure resistant fiber optic slip ring of claim 4, wherein: the end face, close to one side of the shell, of the flange plate is provided with a C-shaped annular groove, the C-shaped sealing assembly comprises a C-shaped sealing ring, the C-shaped sealing ring is assembled in a C-shaped annular sealing groove, and the flange plate and the shell are assembled in a sealing mode through the C-shaped sealing ring.