A shipborne photoelectric instrument horizontal shaft system with high sealing performance

Abstract

The application relates to the technical field of photoelectric instruments, in particular to a shipborne photoelectric instrument horizontal shaft system with high sealing performance, which comprises a left supporting assembly and a right supporting assembly; a left shaft assembly, a right shaft assembly and a four-way assembly are arranged between the left supporting assembly and the right supporting assembly, the left shaft assembly is connected between the left supporting assembly and the four-way assembly, and the right shaft assembly is connected between the right supporting assembly and the four-way assembly; a circular grating assembly is arranged between the left shaft assembly and the left supporting assembly, a limiting assembly and a motor assembly are arranged between the right shaft assembly and the right supporting assembly; a plurality of left dynamic sealing assemblies are arranged between the left supporting assembly and the four-way assembly, and a plurality of right dynamic sealing assemblies are arranged between the right supporting assembly and the four-way assembly. The application comprises a plurality of dynamic sealing structures, has good waterproof sealing performance, can overcome the poor dynamic sealing performance of traditional shipborne photoelectric instruments, and has high engineering application value.

Description

Technical Field

[0001] This invention relates to the field of optoelectronic instrument technology, and in particular to a horizontal shaft system for shipborne optoelectronic instruments with high sealing performance. Background Technology

[0002] In recent years, with the vigorous development of marine surveying technology, shipborne optoelectronic instruments have been increasingly widely used. Since these instruments are typically directly exposed to the complex marine environment, they are susceptible to damage from rain or seawater impacts during sudden severe weather events such as storms. Therefore, the waterproof sealing performance of shipborne optoelectronic instruments is a key factor to consider in their design. Shipborne optoelectronic instruments typically include horizontal shaft systems, vertical shaft systems, and optical sensors. As one of the critical components, the waterproof sealing performance of the horizontal shaft system directly determines the overall performance of the instrument. The waterproof sealing of the horizontal shaft system is mainly divided into static sealing and dynamic sealing. While the reliability of static sealing is relatively easy to guarantee, dynamic sealing between moving parts presents a difficult technical challenge.

[0003] Currently, for horizontal shaft systems, traditional dynamic sealing methods can be referenced in the articles "Waterproof Dynamic Seal Design of Pitch Shaft System for Shipborne Theodolite" and "Research on Sealing Structure Design of Theodolite" published in the journal "Mechanical and Electrical Product Development and Innovation". These articles indicate that current dynamic sealing structures for horizontal shaft systems of shipborne optoelectronic instruments all employ a labyrinth seal combined with a graphite sealing ring. This structure uses a spring-loaded dynamic and static ring, guided by a ball-head pin. This sealing structure has the following main problems: In actual use, due to the poor consistency and stability of the spring, and the difficulty in controlling the fit error during the manufacturing process of the ball-head pin guide structure, coupled with the machining errors easily generated on the graphite surface, uneven contact between the dynamic and static rings occurs. This exacerbates localized wear, leading to structural failure, and also results in unreliable sealing, causing water leakage in shipborne optoelectronic instruments during stormy weather.

[0004] In summary, designing a horizontal shaft system for shipborne optoelectronic instruments with good waterproof and sealing performance to overcome the technical challenge of poor dynamic sealing performance of shipborne optoelectronic instruments is an urgent problem to be solved. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a horizontal shaft system for shipborne optoelectronic instruments with high sealing performance. The system improves the dynamic sealing performance of the shipborne optoelectronic instruments through a multi-layer dynamic sealing structure located between the support assembly and the four-way assembly, preventing seawater from entering the equipment and ensuring stability and reliability.

[0006] To achieve the above objectives, the present invention proposes the following technical solution: a horizontal axis system for a shipborne optoelectronic instrument with high sealing performance, comprising a left support assembly and a right support assembly; a left shaft assembly, a right shaft assembly, and a four-way assembly are provided between the left support assembly and the right support assembly, the left shaft assembly being connected between the left support assembly and the four-way assembly, and the right shaft assembly being connected between the right support assembly and the four-way assembly; a circular grating assembly is provided between the left shaft assembly and the left support assembly, and a limiting assembly and a motor assembly are provided between the right shaft assembly and the right support assembly; a multi-layer left dynamic sealing assembly is provided between the left support assembly and the four-way assembly, and a multi-layer right dynamic sealing assembly is provided between the right support assembly and the four-way assembly.

[0007] Preferably, the multi-layer left dynamic sealing assembly includes a left annular groove labyrinth sealing layer, a left conical groove flow guiding sealing layer, a left magnetic sealing assembly, and a left labyrinth sealing assembly located between the left support assembly and the four-way assembly. The left annular groove labyrinth sealing layer, the left conical groove flow guiding sealing layer, the left magnetic sealing assembly, and the left labyrinth sealing assembly together form four dynamic sealing layers between the left support assembly and the four-way assembly. The left annular groove labyrinth sealing layer is the first dynamic sealing layer, the left conical groove flow guiding sealing layer is the second dynamic sealing layer, the left labyrinth sealing assembly is the third dynamic sealing layer, and the left magnetic sealing assembly is the fourth dynamic sealing layer.

[0008] Preferably, the multi-layer right dynamic sealing assembly further includes a right annular groove labyrinth sealing layer, a right conical groove flow guiding sealing layer, a right magnetic sealing assembly, and a right labyrinth sealing assembly located between the right support assembly and the four-way assembly. The right annular groove labyrinth sealing layer, the right conical groove flow guiding sealing layer, the right magnetic sealing assembly, and the right labyrinth sealing assembly together form four dynamic sealing layers between the right support assembly and the four-way assembly, with the right annular groove labyrinth sealing layer being the first dynamic sealing layer, the right conical groove flow guiding sealing layer being the second dynamic sealing layer, the right labyrinth sealing assembly being the third dynamic sealing layer, and the right magnetic sealing assembly being the fourth dynamic sealing layer.

[0009] Preferably, the left support assembly includes a left column, a left column cover plate located on the left column, and a left sealing ring pressed against the left column by the left column cover plate; the right support assembly includes a right column, a right column cover plate located on the right column, and a right sealing ring pressed against the right column by the right column cover plate; the left and right sealing rings respectively achieve static sealing between the left and right columns and the external environment.

[0010] Preferably, the left-side labyrinth sealing assembly includes a matching left labyrinth seal 1 and a left labyrinth seal 2, which are respectively assembled with the left column and the four-way assembly; the left labyrinth seal 1 includes a plurality of left sealing platforms 1 protruding inward, with a left sealing groove 1 formed between adjacent left sealing platforms 1; the left labyrinth seal 2 includes a left sealing platform 2 protruding outward and accommodated in the left sealing groove 1, with a left sealing groove 2 formed between adjacent left sealing platforms 2 for accommodating the left sealing platform 1; the left sealing platform 1, the left sealing groove 1, the left sealing platform 2, and the left sealing groove 2 together form the left-side labyrinth sealing assembly with a labyrinth structure;

[0011] The right-side labyrinth sealing assembly includes a right labyrinth seal 1 and a right labyrinth seal 2 that are matched together. The right labyrinth seal 1 and the right labyrinth seal 2 are respectively assembled with the right column and the four-way assembly. The right labyrinth seal 1 includes a plurality of right sealing platforms 1 that protrude inwards, and a right sealing groove 1 is formed between adjacent right sealing platforms 1. The right labyrinth seal 2 includes a right sealing platform 2 that protrudes outwards and is accommodated in the right sealing groove 1, and a right sealing groove 2 is formed between adjacent right sealing platforms 2 for accommodating the right sealing platform 1. The right sealing platform 1, the right sealing groove 1, the right sealing platform 2, and the right sealing groove 2 together form the right labyrinth sealing assembly with a labyrinth structure.

[0012] Preferably, the left-side magnetic sealing assembly includes a left fixing member 1 and a left fixing member 2 respectively connected to the left column and the four-way assembly, with a left water flow gap formed between the left fixing member 1 and the left fixing member 2; the left fixing member 1 and the left fixing member 2 include a left moving ring, a left stationary ring 1, and a left stationary ring 2 located above the left stationary ring 1; the left moving ring and the left fixing member 1, the left moving ring and the left stationary ring 2, the left stationary ring 2 and the left fixing member 2, and the left stationary ring 1 and the left stationary ring 2 are all sealed by sealing rings; a left magnet is provided between the left moving ring and the left stationary ring 1;

[0013] The right-side magnetic sealing assembly includes a right fixing part one and a right fixing part two connected to the right column and the four-way assembly, respectively; a right water flow gap is formed between the right fixing part one and the right fixing part two; between the right fixing part one and the right fixing part two, there is a right moving ring, a right stationary ring one and a right stationary ring two located above the right stationary ring one; the right moving ring and the right fixing part one, the right moving ring and the right stationary ring two, the right stationary ring two and the right fixing part two, and the right stationary ring one and the right stationary ring two are all sealed by sealing rings; a right magnet is provided between the right moving ring and the right stationary ring one.

[0014] Preferably, the left moving ring is provided with a left bearing to provide guidance during the relative movement of the left moving ring and the left stationary ring 1 in the left magnetic sealing assembly; a left friction pair with a small coefficient of friction is also provided between the left moving ring and the left stationary ring 1, and the friction force of the left magnetic sealing assembly is kept within the allowable range through the left friction pair;

[0015] The right moving ring is provided with a right bearing to provide guidance during the relative movement of the right moving ring and the right stationary ring 1 in the right magnetic seal assembly; a right friction pair with a small coefficient of friction is also provided between the right moving ring and the right stationary ring 1, and the friction force of the right magnetic seal assembly is kept within the allowable range through the right friction pair.

[0016] Preferably, the left conical groove flow-guiding sealing layer includes a left conical groove formed on the four-way assembly and located below the left labyrinth seal one and the left labyrinth seal two, through which a flow-guiding groove is formed to discharge seawater;

[0017] The right conical groove flow guide sealing layer includes a right conical groove formed on the four-way assembly and located below the right labyrinth seal one and the right labyrinth seal two, through which seawater is discharged.

[0018] Preferably, the four-way assembly includes a four-way; the left annular groove labyrinth sealing layer includes a left sealing platform three and a left sealing platform four protruding inward from the left column and a left sealing platform five protruding outward from the four-way, a left sealing groove three is formed between the left sealing platform three and the left sealing platform four, and the left sealing platform five is accommodated in the left sealing groove three. The left sealing platform three, the left sealing platform four, the left sealing platform five and the left sealing groove three together form the left annular groove labyrinth sealing layer with a labyrinth structure.

[0019] The right annular groove labyrinth sealing layer includes a right sealing platform three and a right sealing platform four protruding inward from the right column and a right sealing platform five protruding outward from the four-way valve. A right sealing groove three is formed between the right sealing platform three and the right sealing platform four. The right sealing platform three, the right sealing platform four, the right sealing platform five and the right sealing groove three together form the right annular groove labyrinth sealing layer with a labyrinth structure.

[0020] Preferably, the left shaft assembly includes a left shaft coaxial with the four-way assembly, and a left bearing outer ring seat and a left bearing inner ring cover are connected to the left shaft; an angular contact bearing is provided between the left bearing outer ring seat and the left shaft; a left bearing outer ring cover and a left bearing outer ring adapter are connected to the left bearing outer ring seat; the left bearing outer ring cover and the left shaft are sealed with felt, and the left bearing outer ring adapter and the left shaft are sealed with felt.

[0021] The right shaft assembly includes a right shaft coaxial with the four-way assembly; the right shaft is provided with a right bearing outer ring seat and a right bearing outer ring cover provided on the right bearing outer ring seat; the right bearing outer ring seat is connected to the right column; a deep groove ball bearing is provided between the right bearing outer ring seat and the right shaft; the right bearing outer ring seat and the right shaft are sealed by felt.

[0022] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0023] 1. This invention employs a multi-layer dynamic sealing structure for sealing, which can improve the sealing performance of shipborne optoelectronic instruments. This solution is technically feasible, stable and reliable, and has great engineering application value.

[0024] 2. In this invention, the first layer of labyrinth sealing structure can prevent seawater from entering the equipment; the second layer of guide channel structure can discharge seawater that has entered the equipment to the outside of the equipment; the third layer of labyrinth sealing structure can further block seawater from entering the shaft system; the first three sealing structures can ensure that very little or no seawater enters the equipment, and the fourth layer of magnetic sealing structure, through the floating seal of the stationary ring and the moving ring, further ensures the waterproof sealing performance of the equipment. Attached Figure Description

[0025] Figure 1 This is a top view of the assembled appearance of a shipborne optoelectronic instrument provided according to an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 Sectional view at point AA;

[0027] Figure 3 yes Figure 2 A partial schematic diagram of the magnetic sealing assembly on the left side at point C;

[0028] Figure 4 yes Figure 2 A partial schematic diagram of the magnetic sealing assembly on the right side at point D;

[0029] Figure 5 yes Figure 2 A partial schematic diagram of the left-hand shaft assembly at point E;

[0030] Figure 6 yes Figure 2 A partial schematic diagram of the right-hand shaft assembly at point F;

[0031] Figure 7 yes Figure 2 A partial schematic diagram of the labyrinth sealing assembly on the left side of point G;

[0032] Figure 8 yes Figure 2 A partial schematic diagram of the labyrinth sealing assembly on the right side at point H in the middle;

[0033] Figure 9 yes Figure 2 A cross-sectional view at point JJ;

[0034] Figure 10 yes Figure 2 Sectional view at point KK;

[0035] Figure 11 yes Figure 2 A partial schematic diagram of the left annular groove labyrinth sealing layer at point L (top left corner);

[0036] Figure 12 yes Figure 2 A partial schematic diagram of the right annular groove labyrinth sealing layer at point M (upper right corner).

[0037] Reference numerals: 1. Left support assembly; 101. Left column; 102. Left side sealing ring; 103. Left column cover plate; 7. Right support assembly; 701. Right column; 702. Right side sealing ring; 703. Right column cover plate;

[0038] 2. Left shaft assembly; 201. Left bearing outer ring seat; 202. Left bearing outer ring cover; 203. First felt; 204. Left shaft; 205. Angular contact bearing; 206. Left bearing outer ring adapter; 207. Second felt; 208. Left bearing inner ring cover;

[0039] 3. Left side magnetic sealing assembly; 301. Left fixing component one; 302. Left moving ring; 303. First sealing ring; 304. Left friction pair; 305. Left stationary ring one; 306. Left bearing; 307. Left magnet; 308. Second sealing ring; 309. Third sealing ring; 310. Fourth sealing ring; 311. Left stationary ring two; 312. Left fixing component two; 313. Left water flow gap;

[0040] 4. Left labyrinth seal assembly; 401. Left labyrinth seal element one; 402. Left labyrinth seal element two; 403. Left sealing platform one; 404. Left sealing groove one; 405. Left sealing platform two; 406. Left sealing groove two;

[0041] 5. Four-way assembly; 501. Four-way front cover; 502. Four-way; 503. Four-way top cover; 504. Four-way rear cover;

[0042] 6. Right labyrinth seal assembly; 601. Right labyrinth seal element one; 602. Right labyrinth seal element two; 603. Right sealing platform one; 604. Right sealing groove one; 605. Right sealing platform two; 606. Right sealing groove two;

[0043] 8. Right side magnetic sealing assembly; 801. Right fixing component one; 802. Right moving ring; 803. Fifth sealing ring; 804. Right friction pair; 805. Right stationary ring one; 806. Right bearing; 807. Right magnet; 808. Sixth sealing ring; 809. Seventh sealing ring; 810. Eighth sealing ring; 811. Right stationary ring two; 812. Right fixing component two; 813. Right water flow gap;

[0044] 9. Right shaft assembly; 901. Right bearing outer ring seat; 902. Right bearing outer ring cap; 903. Third felt; 904. Deep groove ball bearing; 905. Fourth felt; 906. Right shaft;

[0045] 10. Limiting assembly; 1001. Impact bar; 1002. Contact piece one; 1003. Rubber pad one; 1004. Metal clip one; 1005. Metal clip two; 1006. Rubber pad two; 1007. Support base one; 1008. Contact piece two; 1009. Limiting base one; 1010. Hydraulic buffer one; 1011. Photoelectric switch one; 1012. Photoelectric switch two; 1013. Hydraulic buffer two; 1014. Limiting base two; 1015. Support base two;

[0046] 11. Circular grating assembly; 1101. Circular grating holder; 1102. Circular grating; 1103. Reading head adapter one; 1104. Reading head one; 1105. Reading head adapter two; 1106. Reading head adapter three; 1107. Reading head adapter four; 1108. Reading head two;

[0047] 12. Left annular groove labyrinth sealing layer; 121. Left sealing platform three; 122. Left sealing platform four; 123. Left sealing platform five; 124. Left sealing groove three; 13. Left conical groove flow guiding sealing layer; 131. Left conical groove; 14. Right annular groove labyrinth sealing layer; 141. Right sealing platform three; 142. Right sealing platform four; 143. Right sealing platform five; 144. Right sealing groove three; 15. Right conical groove flow guiding sealing layer; 151. Right conical groove; 16. Motor assembly; 1601. Motor; 1602. Motor connector. Detailed Implementation

[0048] The appendix will be referenced below. Figure 1-12 Embodiments of the present invention are described below. In the following description, the same modules are denoted by the same reference numerals. Where the same reference numerals are used, their names and functions are also the same. Therefore, their detailed description will not be repeated.

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided in conjunction with the appendix. Figure 1-12 The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and do not constitute a limitation thereof.

[0050] A horizontal shaft system for a shipborne optoelectronic instrument with high sealing performance includes a left support assembly 1, a right support assembly 7, and a four-way assembly 5 located between the left support assembly 1 and the right support assembly 7; Figure 1-2As shown, the left support assembly 1 includes a left column 101 and a left column cover plate 103 located on the left column 101. A left sealing ring 102 is provided between the left column 101 and the left column cover plate 103. The left sealing ring 102 is pressed against the left column 101 by the left column cover plate 103. The right support assembly 7 includes a right column 701, a right column cover plate 703 located on the right column 701, and a right sealing ring 702. The right sealing ring 702 is pressed against the right column 701 by the right column cover plate 703. Since the left column 101 and the external environment, and the right column 701 and the external environment are statically sealed, the static sealing requirements between the left column 101 and the right column 701 and the external environment can be achieved by the left sealing ring 102 and the right sealing ring 702, respectively.

[0051] like Figure 1 As shown, the four-way assembly 5 includes a four-way front cover 501, a four-way 502, a four-way upper cover 503, and a four-way rear cover 504. The four-way front cover 501, the four-way upper cover 503, and the four-way rear cover 504 are all bolted to the four-way 502. The four-way front cover 501 and the four-way 502, the four-way upper cover 503 and the four-way 502, and the four-way rear cover 504 and the four-way 502 are all statically sealed by sealing rings to protect the internal structure of the four-way assembly 5 from seawater corrosion.

[0052] like Figure 1 , 2 As shown in Figures 5 and 6, the left support assembly 1 and the right support assembly 7 also include a left shaft assembly 2 and a right shaft assembly 9. The left shaft assembly 2 is located between the four-way assembly 5 and the left support assembly 1, and the right shaft assembly 9 is located between the four-way assembly 5 and the right support assembly 7. Specifically, the left side of the four-way 502 is connected to the left shaft assembly 2, and the right side of the four-way 502 is connected to the right shaft assembly 9.

[0053] like Figure 2 As shown, the left support assembly 1 and the four-way assembly 502 in the four-way assembly 5, and the right support assembly 7 and the four-way assembly 502 in the four-way assembly 5, respectively include a multi-layer left dynamic sealing assembly and a multi-layer right dynamic sealing assembly. In this embodiment, a total of four layers of left dynamic sealing assemblies and four layers of right dynamic sealing assemblies are included. The multi-layer left dynamic sealing assembly includes a left magnetic sealing assembly 3 and a left labyrinth sealing assembly 4 located above the left shaft assembly 2. The multi-layer right dynamic sealing assembly includes a right magnetic sealing assembly 8 and a right labyrinth sealing assembly 6 located above the right shaft assembly 9.

[0054] The multi-layer left dynamic sealing assembly also includes a left annular groove labyrinth sealing layer 12 and a left conical groove flow guiding sealing layer 13 located between the left support assembly 1 and the four-way assembly 5 (four-way 502). The left annular groove labyrinth sealing layer 12, the left conical groove flow guiding sealing layer 13, the left magnetic sealing assembly 3, and the left labyrinth sealing assembly 4 together form four dynamic sealing layers between the left support assembly 1 and the four-way assembly 5. The left annular groove labyrinth sealing layer 12 is the first dynamic sealing layer, the left conical groove flow guiding sealing layer 13 is the second dynamic sealing layer, the left labyrinth sealing assembly 4 is the third dynamic sealing layer, and the left magnetic sealing assembly 3 is the fourth dynamic sealing layer. The first dynamic sealing layer prevents seawater from entering the equipment, while the second dynamic sealing layer allows seawater entering the equipment to flow smoothly... Figure 7 The water flows out of the left conical groove 131 shown. The third dynamic sealing layer further prevents seawater from entering the parallel shaft system, while the fourth dynamic sealing layer allows seawater to flow out... Figure 3 The water flows out through the left gap 313 shown in the diagram. The first three sealing layers ensure that very little or no seawater enters the equipment. The fourth sealing layer ensures the equipment's waterproof sealing performance. If a very small amount of seawater enters the parallel shaft system through the first to third sealing layers, the fourth sealing layer can prevent seawater from entering.

[0055] The multi-layer right dynamic sealing assembly also includes a right annular groove labyrinth sealing layer 14 and a right conical groove flow guiding sealing layer 15 located between the right support assembly 7 and the four-way assembly 5 (four-way 502). The right annular groove labyrinth sealing layer 14, the right conical groove flow guiding sealing layer 15, the right magnetic sealing assembly 8, and the right labyrinth sealing assembly 6 together form four dynamic sealing layers between the right support assembly 7 and the four-way assembly 5. The right annular groove labyrinth sealing layer 14 is the first dynamic sealing layer, the right conical groove flow guiding sealing layer 15 is the second dynamic sealing layer, the right labyrinth sealing assembly 6 is the third dynamic sealing layer, and the right magnetic sealing assembly 8 is the fourth dynamic sealing layer. The first dynamic sealing layer prevents seawater from entering the equipment, while the second dynamic sealing layer allows seawater entering the equipment to flow smoothly... Figure 8 The right conical groove 151 shown in the diagram flows out, and the third dynamic sealing layer further prevents seawater from entering the parallel shaft system. The fourth dynamic sealing layer allows seawater to flow out... Figure 4 The water flows out from the right water flow gap 813 shown in the diagram.

[0056] like Figure 5As shown, the left shaft assembly 2 includes a left shaft 204 coaxial with the four-way assembly 5. The left shaft 204 and the four-way assembly 5 are assembled by interference fit and connected by bolts. The outer side of the left shaft 204 is provided with a left bearing outer ring seat 201, a left bearing outer ring cover 202, and a left bearing inner ring cover 208. An angular contact bearing 205 is provided between the left bearing outer ring seat 201 and the left shaft 204. The inner ring of the angular contact bearing 205 is connected to the left shaft 204, and the outer ring of the angular contact bearing 205 is connected to the left shaft 204. All the outer ring seats 201 of the side bearings are interference fit; the outer ring cover 202 of the left bearing is located outside the outer ring seat 201 of the left bearing, and the outer ring seat 201 of the left bearing is also provided with the outer ring adapter 206 of the left bearing; the inner ring cover 208 of the left bearing is connected to the left shaft 204; the outer ring cover 202 of the left bearing and the left shaft 204 are sealed by the first felt 203, and the inner ring cover 208 of the left bearing and the outer ring adapter 206 of the left bearing are sealed by the second felt 207.

[0057] like Figure 6 The right shaft assembly 9 shown includes a right shaft 906 coaxial with the four-way assembly 5. The right shaft 906 and the four-way assembly 5 are assembled with an interference fit and connected with bolts. A right bearing outer ring seat 901 and a right bearing outer ring cover 902 are provided on the outside of the right shaft 906. A deep groove ball bearing 904 is provided between the right bearing outer ring seat 901 and the right shaft 906. The inner ring of the deep groove ball bearing 904 and the right shaft 906 are both fitted with an interference fit. The right bearing outer ring cover 902 is located on the outside of the right bearing outer ring seat 901 and the outside of the right bearing outer ring seat 901 is connected to the right column 701. The right bearing outer ring seat 901 and the right shaft 906 are sealed by a third felt 903, and the right bearing outer ring cover 902 and the right shaft 906 are sealed by a fourth felt 905.

[0058] like Figure 7 As shown, the left labyrinth sealing assembly 4 includes a matching left labyrinth seal 401 and a left labyrinth seal 402, which are respectively assembled with the left column 101 and the four-way connector 502. The left labyrinth seal 401 includes a plurality of left sealing platforms 403 protruding inward, and a left sealing groove 404 is formed between adjacent left sealing platforms 403. The left labyrinth seal 402 includes a left sealing platform 405 protruding outward and accommodated in the left sealing groove 404, and a left sealing groove 406 is formed between adjacent left sealing platforms 405 for accommodating the left sealing platform 403. The left sealing platforms 403, left sealing grooves 404, left sealing platforms 405 and left sealing grooves 406 together form the left labyrinth sealing assembly 4 with a labyrinth structure.

[0059] The left conical groove flow guiding sealing layer 13 includes a left conical groove 131 formed on the four-way assembly 5 and located below the left labyrinth seal 401 and the left labyrinth seal 402. The left conical groove 131 is a conical inclined surface structure directly machined on the left end face of the four-way 502. The flow guiding groove formed by the left conical groove 131 discharges seawater.

[0060] like Figure 8 As shown, the right-side labyrinth sealing assembly 6 includes a right labyrinth seal 601 and a right labyrinth seal 602 that are matched together. The right labyrinth seal 601 and the right labyrinth seal 602 are respectively assembled with the right column 701 and the four-way connector 502. The right labyrinth seal 601 includes a plurality of right sealing platforms 603 that protrude inwards, and a right sealing groove 604 is formed between adjacent right sealing platforms 603. The right labyrinth seal 602 includes a right sealing platform 605 that protrudes outwards and is accommodated in the right sealing groove 604, and a right sealing groove 606 is formed between adjacent right sealing platforms 605 for accommodating the right sealing platform 603. The right sealing platforms 603, right sealing grooves 604, right sealing platforms 605 and right sealing grooves 606 together form the right labyrinth sealing assembly 6 with a labyrinth structure.

[0061] The right conical groove flow guiding sealing layer 15 includes a right conical groove 151 formed on the four-way assembly 5 and located below the right labyrinth seal 601 and the right labyrinth seal 602. The right conical groove 151 is a conical inclined surface structure directly machined on the right end face of the four-way 502. Seawater is discharged through the flow guiding groove formed by the right conical groove 151.

[0062] like Figure 3As shown, the left magnetic sealing assembly 3 includes a left fixing member 301 and a left fixing member 312 connected to the left column 101 and the four-way assembly 5, respectively. A left water flow gap 313 is formed between the left fixing member 301 and the left fixing member 312. Between the left fixing member 301 and the left fixing member 312, there is a left moving ring 302, a left stationary ring 305, and a left stationary ring 311 located above the left stationary ring 305. The left moving ring 302 and the left fixing member 301, and the left stationary ring 311 and the left fixing member 312 are all connected by interference fit. The left moving ring 302 and the left fixing member 301, the left stationary ring 311 and the left fixing member 312, and the left stationary ring 302 and the left fixing member 312 are connected by interference fit. 5. Both the left stationary ring 311 and the left stationary ring 302 are sealed by sealing rings; the left moving ring 302 and the left stationary ring 311 are fitted with a clearance and a sealing ring is provided between the left moving ring 302 and the left stationary ring 311; the left moving ring 302 and the left stationary ring 305 are fitted with a magnetic force and a left magnet 307 is provided between the left moving ring 302 and the left stationary ring 305; the left fixing part 301 and the left moving ring 302 are provided with a first sealing ring 303; the left stationary ring 305 and the left stationary ring 311 are provided with a second sealing ring 308; the left stationary ring 311 and the left moving ring 302 are provided with a third sealing ring 309; and the left fixing part 312 and the left stationary ring 311 are provided with a fourth sealing ring 310.

[0063] A left bearing 306 is provided on the left moving ring 302. The inner and outer rings of the left bearing 306 are interference-fitted with the left moving ring 302 and the left stationary ring 305, respectively. The inner and outer rings of the left bearing 306 can move relative to each other under the guidance of the rolling elements, so as to provide guidance during the relative movement of the left moving ring 302 and the left stationary ring 305. A left friction pair 304 with a small coefficient of friction is also provided between the left moving ring 302 and the left stationary ring 305. The left friction pair 304 ensures that the friction force of the left magnetic sealing assembly 3 is within the allowable range.

[0064] like Figure 4As shown, the right-side magnetic sealing assembly 8 includes a right fixing member 1 801 and a right fixing member 2 812 respectively connected to the right column 701 and the four-way assembly 5; a right water flow gap 813 is formed between the right fixing member 1 801 and the right fixing member 2 812; between the right fixing member 1 801 and the right fixing member 2 812, there is a right moving ring 802, a right stationary ring 1 805 and a right stationary ring 2 811 located above the right stationary ring 1 805; between the right moving ring 802 and the right fixing member 1 801, and between the right stationary ring 2 811 and the right fixing member 2 All 812 components are assembled with an interference fit; the right moving ring 802 and the right fixed component 801, the right stationary ring 811 and the right fixed component 812, and the right stationary ring 805 and the right stationary ring 811 are all sealed with sealing rings; the right moving ring 802 and the right stationary ring 811 are fitted with a clearance fit and a sealing ring is provided between them; the right moving ring 802 and the right stationary ring 805 are fitted with a magnetic fit and a right magnet 807 is provided between them. A fifth sealing ring 803 is provided between the right moving ring 802 and the right fixed component 801; a sixth sealing ring 808 is provided between the right stationary ring 805 and the right stationary ring 811; a seventh sealing ring 809 is provided between the right stationary ring 811 and the right moving ring 802; and an eighth sealing ring 810 is provided between the right stationary ring 811 and the right fixed component 812.

[0065] The right moving ring 802 is equipped with a right bearing 806. The inner and outer rings of the right bearing 806 are interference-fitted with the right moving ring 802 and the right stationary ring 805, respectively. The inner and outer rings of the right bearing 806 can move relative to each other under the guidance of the rolling elements, so as to provide guidance during the relative movement of the right moving ring 802 and the right stationary ring 805. A right friction pair 804 with a small coefficient of friction is also provided between the right moving ring 802 and the right stationary ring 805. The right friction pair 804 ensures that the friction force of the right magnetic sealing assembly 8 is within the allowable range. The left friction pair 304 and the right friction pair 804 can be made of materials such as silicon carbide or bronze, which can prevent seawater from entering the parallel shaft system. This friction pair has a small coefficient of friction.

[0066] like Figure 11 As shown, the left annular groove labyrinth sealing layer 12 includes a left sealing platform 3 121 and a left sealing platform 4 122 that are opened on the left column 101 and protrude inward, and a left sealing platform 5 123 that is opened on the four-way 502 and protrudes outward. A left sealing groove 3 124 is formed between the left sealing platform 3 121 and the left sealing platform 4 122. The left sealing platform 5 123 is accommodated in the left sealing groove 3 124. The left sealing platform 3 121, the left sealing platform 4 122, the left sealing platform 5 123 and the left sealing groove 3 124 together form the left annular groove labyrinth sealing layer 12 with a labyrinth structure.

[0067] like Figure 12As shown, the right annular groove labyrinth sealing layer 14 includes a right sealing platform 3 141 and a right sealing platform 4 142 protruding inward from the right column 701 and a right sealing platform 5 143 protruding outward from the four-way 502. A right sealing groove 3 144 is formed between the right sealing platform 3 141 and the right sealing platform 4 142. The right sealing platform 3 141, the right sealing platform 4 142, the right sealing platform 5 143 and the right sealing groove 3 144 together form the right annular groove labyrinth sealing layer 14 with a labyrinth structure.

[0068] like Figure 2 As shown, a circular grating assembly 11 is provided between the left shaft assembly 2 and the left column 101, and the circular grating assembly 11 is fixed to the tail of the left shaft assembly 2 by bolts; as Figure 9 As shown, the circular grating assembly 11 includes a circular grating base 1101, a circular grating 1102, a reading head adapter 1103, a reading head adapter 2 1105, a reading head 1104, a reading head adapter 3 1106, a reading head adapter 4 1107, and a reading head 2 1108. The circular grating 1102 is fixed to the circular grating base 1101 by bolts. The reading head adapter 1103 is fixed to the left column 101 by bolts. The reading head 1104 is fixed to the reading head adapter 1103 and the reading head adapter 2 1105 by bolts. The reading head adapter 3 1106 is fixed to the left column 101 by bolts. The reading head 2 1108 is fixed to the reading head adapter 3 1106 and the reading head adapter 4 1107 by bolts. The reading head 1104 and the reading head 2 1108 obtain the required axis data by reading the circular grating 1102.

[0069] like Figure 2 As shown, a limiting component 10 and a motor component 16 are provided between the right shaft assembly 9 and the right column 701. Figure 10As shown, the limiting assembly 10 includes a strike bar 1001, a first contact piece 1002, a first rubber pad 1003, a first metal clip 1004, a second metal clip 1005, a second rubber pad 1006, a first support base 1007, a second contact piece 1008, a first limiting base 1009, a first hydraulic buffer 1010, a first photoelectric switch 1011, a second photoelectric switch 1012, a second hydraulic buffer 1013, a second limiting base 1014, and a second support base 1015. In the limiting assembly 10, the impact rod 1001 is fixed to the tail of the right shaft assembly 9 by bolts. The hydraulic buffer 1010 is fixed to the limiting seat 1009 and the support seat 1007 by bolts. The support seat 1007 is fixed to the right column 701 by bolts. The hydraulic buffer 1013 is fixed to the limiting seat 1014 and the support seat 1015 by bolts. The support seat 1015 is fixed to the right column 701 by bolts. The hydraulic buffer 1010 and the hydraulic buffer 1013 limit the range of motion of the impact rod 1001, thereby limiting the range of rotation of the right shaft assembly 9, and thus limiting the rotation angle of the horizontal axis system.

[0070] like Figure 2 , 10 As shown, the motor assembly 16 includes a motor 1601 and a motor connector 1602. The outer side of the motor 1601 is fixed to the right column 701 by bolts, and the inner side of the motor 1601 is fixed to the motor connector 1602 by bolts. The motor connector 1602 is connected to the right shaft assembly 9 by bolts. When the inner side of the motor starts to rotate, the right shaft assembly 9 is driven to rotate through the motor connector 1602, thereby driving the entire horizontal shaft system to rotate.

[0071] In use, the motor assembly 16 drives the left shaft assembly 2 to rotate, causing relative movement between the left moving ring 302 and the left stationary ring 305 and 311. The left stationary ring 311 is interference-fitted with the left fixed member 312 and is equipped with a fourth sealing ring 310 to prevent seawater from entering. The left moving ring 302 is interference-fitted with the left fixed member 301 and is equipped with a first sealing ring 303 to prevent seawater from entering. When seawater does not overflow the end face of the left moving ring 302, it flows out through the left water flow gap 313. Only when seawater overflows the end face of the left moving ring 302 can it enter the interior of the left magnetic sealing assembly 3. The left moving ring 302 is clearance-fitted with the left stationary ring 311 and is equipped with a third sealing ring 309 to prevent seawater from entering. The left stationary ring 305 is interference-fitted with the left stationary ring 311 and is equipped with a second sealing ring 308 to prevent seawater from entering. The left moving ring 302 and the left stationary ring 305 are held together by the attraction of the left magnet 307, and the left bearing 306 acts as a guide when the left moving ring 302 moves. Finally, under the action of the left magnet 307, the left friction pair 304 is tightly attached to the left stationary ring 305, thereby isolating seawater. The seawater flows out from the bottom of the left magnetic sealing assembly 3 along the outer surface of the left friction pair 304.

[0072] The motor assembly 16 drives the right shaft assembly 9 to rotate, causing relative movement between the right moving ring 802 and the right stationary ring 805 and 811. The right stationary ring 811 is interference-fitted with the right fixed member 812 and is equipped with an eighth sealing ring 810 to prevent seawater from entering. The right moving ring 802 is interference-fitted with the right fixed member 801 and is equipped with a fifth sealing ring 803 to prevent seawater from entering. When seawater does not overflow the end face of the right moving ring 802, it flows out through the right water flow gap 813. Only when seawater overflows the end face of the right moving ring 802 can it enter the interior of the right magnetic sealing assembly 8. The right moving ring 802 and the right stationary ring 811 are clearance-fitted and are equipped with a seventh sealing ring 809 to prevent seawater from entering. The right stationary ring 805 and the right stationary ring 811 are interference-fitted and are equipped with a sixth sealing ring 808 to prevent seawater from entering. The right moving ring 802 and the right stationary ring 805 are held together by the attraction of the right magnet 807, and the right bearing 806 acts as a guide when the right moving ring 802 moves. Finally, under the action of the right magnet 807, the right friction pair 804 is tightly fitted onto the right stationary ring 805, thereby isolating seawater. The seawater flows out from the bottom of the right magnetic sealing assembly 8 along the outer surface of the right friction pair 804.

[0073] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0074] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A horizontal shaft system for shipborne optoelectronic instruments with high sealing performance, characterized in that, It includes a left support assembly (1) and a right support assembly (7); between the left support assembly (1) and the right support assembly (7) are a left shaft assembly (2), a right shaft assembly (9) and a four-way assembly (5), the left shaft assembly (2) is connected between the left support assembly (1) and the four-way assembly (5), and the right shaft assembly (9) is connected between the right support assembly (7) and the four-way assembly (5); a circular grating assembly (11) is provided between the left shaft assembly (2) and the left support assembly (1), and a limiting assembly (10) and a motor assembly (16) are provided between the right shaft assembly (9) and the right support assembly (7); the left support assembly (1) and the four-way assembly (5) include a multi-layer left dynamic sealing assembly, and the right support assembly (7) and the four-way assembly (5) include a multi-layer right dynamic sealing assembly; The multi-layer left dynamic sealing assembly includes a left annular groove labyrinth sealing layer (12), a left conical groove flow guiding sealing layer (13), a left magnetic sealing assembly (3), and a left labyrinth sealing assembly (4) located between the left support assembly (1) and the four-way assembly (5). The left annular groove labyrinth sealing layer (12), the left conical groove flow guiding sealing layer (13), the left magnetic sealing assembly (3), and the left labyrinth sealing assembly (4) together form four dynamic sealing layers between the left support assembly (1) and the four-way assembly (5). The left annular groove labyrinth sealing layer (12) is the first dynamic sealing layer, the left conical groove flow guiding sealing layer (13) is the second dynamic sealing layer, the left labyrinth sealing assembly (4) is the third dynamic sealing layer, and the left magnetic sealing assembly (3) is the fourth dynamic sealing layer. The multi-layer right dynamic sealing assembly includes a right annular groove labyrinth sealing layer (14), a right conical groove flow guiding sealing layer (15), a right magnetic sealing assembly (8), and a right labyrinth sealing assembly (6) located between the right support assembly (7) and the four-way assembly (5). The right annular groove labyrinth sealing layer (14), the right conical groove flow guiding sealing layer (15), the right magnetic sealing assembly (8), and the right labyrinth sealing assembly (6) together form four dynamic sealing layers between the right support assembly (7) and the four-way assembly (5). The right annular groove labyrinth sealing layer (14) is the first dynamic sealing layer, the right conical groove flow guiding sealing layer (15) is the second dynamic sealing layer, the right labyrinth sealing assembly (6) is the third dynamic sealing layer, and the right magnetic sealing assembly (8) is the fourth dynamic sealing layer. The left magnetic sealing assembly (3) includes a left fixing part one (301) and a left fixing part two (312) respectively connected to the left column (101) and the four-way assembly (5). A left water flow gap (313) is formed between the left fixing part one (301) and the left fixing part two (312). Between the left fixing part one (301) and the left fixing part two (312), there is a left moving ring (302), a left stationary ring one (305) and a left stationary ring located at the left stationary ring. The left stationary ring 2 (311) is located above the left stationary ring 1 (305); the left moving ring (302) is sealed with a sealing ring between itself and the left fixed part 1 (301), between the left moving ring (302) and the left stationary ring 2 (311), between the left stationary ring 2 (311) and the left fixed part 2 (312), and between the left stationary ring 1 (305) and the left stationary ring 2 (311); a left magnet (307) is provided between the left moving ring (302) and the left stationary ring 1 (305); The right-side magnetic sealing assembly (8) includes a right fixing member one (801) and a right fixing member two (812) respectively connected to the right column (701) and the four-way assembly (5); a right water flow gap (813) is formed between the right fixing member one (801) and the right fixing member two (812); between the right fixing member one (801) and the right fixing member two (812) there is a right moving ring (802), a right stationary ring one (805) and a ring located on the right stationary ring. The right stationary ring 2 (811) is located above the right stationary ring 1 (805); the right moving ring (802) is sealed with sealing rings between the right fixed part 1 (801), between the right moving ring (802) and the right stationary ring 2 (811), between the right stationary ring 2 (811) and the right fixed part 2 (812), and between the right stationary ring 1 (805) and the right stationary ring 2 (811); a right magnet (807) is provided between the right moving ring (802) and the right stationary ring 1 (805); The left moving ring (302) is provided with a left bearing (306) to provide guidance during the relative movement of the left moving ring (302) and the left stationary ring (305) in the left magnetic sealing assembly (3); a left friction pair (304) with a small coefficient of friction is also provided between the left moving ring (302) and the left stationary ring (305) to ensure that the friction force of the left magnetic sealing assembly (3) is within the allowable range. The right moving ring (802) is provided with a right bearing (806) to provide guidance during the relative movement of the right moving ring (802) and the right stationary ring (805) in the right magnetic sealing assembly (8); a right friction pair (804) with a small coefficient of friction is also provided between the right moving ring (802) and the right stationary ring (805) to ensure that the friction force of the right magnetic sealing assembly (8) is within the allowable range. The materials for the left friction pair (304) and the right friction pair (804) are silicon carbide or bronze.

2. The shipborne optoelectronic instrument horizontal shaft system with high sealing performance according to claim 1, characterized in that, The left support assembly (1) includes a left column (101), a left column cover plate (103) located on the left column (101), and a left sealing ring (102) pressed against the left column (101) by the left column cover plate (103); the right support assembly (7) includes a right column (701), a right column cover plate (703) located on the right column (701), and a right sealing ring (702) pressed against the right column (701) by the right column cover plate (703); the left sealing ring (102) and the right sealing ring (702) respectively achieve static sealing between the left column (101) and the right column (701) and the external environment.

3. The horizontal shaft system for shipborne optoelectronic instruments with high sealing performance according to claim 2, characterized in that, The left labyrinth sealing assembly (4) includes a matching left labyrinth seal 1 (401) and a left labyrinth seal 2 (402), which are respectively assembled with the left column (101) and the four-way assembly (5); the left labyrinth seal 1 (401) includes a plurality of left sealing platforms 1 (403) protruding inward, and a left sealing groove 1 (404) is formed between adjacent left sealing platforms 1 (403). The left labyrinth seal element 2 (402) includes a left sealing platform 2 (405) that protrudes outward and is received in the left sealing groove 1 (404), and a left sealing groove 2 (406) is formed between adjacent left sealing platforms 2 (405) for receiving the left sealing platform 1 (403); the left sealing platform 1 (403), the left sealing groove 1 (404), the left sealing platform 2 (405) and the left sealing groove 2 (406) together form the left labyrinth seal assembly (4) of the labyrinth structure. The right-side labyrinth sealing assembly (6) includes a right labyrinth seal 1 (601) and a right labyrinth seal 2 (602) that are matched together. The right labyrinth seal 1 (601) and the right labyrinth seal 2 (602) are respectively assembled with the right column (701) and the four-way assembly (5). The right labyrinth seal 1 (601) includes a plurality of right sealing platforms 1 (603) that protrude inwards. A right sealing groove 1 (604) is formed between adjacent right sealing platforms 1 (603). The second right labyrinth seal (602) includes a second right sealing platform (605) that protrudes outward and is received in the first right sealing groove (604), and a second right sealing groove (606) for receiving the first right sealing platform (603) is formed between adjacent second right sealing platforms (605); the first right sealing platform (603), the first right sealing groove (604), the second right sealing platform (605) and the second right sealing groove (606) together form the right labyrinth seal assembly (6) of the labyrinth structure.

4. The shipborne optoelectronic instrument horizontal shaft system with high sealing performance according to claim 1, characterized in that, The left conical groove flow guide sealing layer (13) includes a left conical groove (131) opened on the four-way assembly (5) and located below the left labyrinth seal one (401) and the left labyrinth seal two (402), through which a flow guide groove is formed to discharge seawater; The right conical groove flow guide sealing layer (15) includes a right conical groove (151) opened on the four-way assembly (5) and located below the right labyrinth seal one (601) and the right labyrinth seal two (602), through which a flow guide groove is formed to discharge seawater.

5. The shipborne optoelectronic instrument horizontal shaft system with high sealing performance according to claim 1, characterized in that, The four-way assembly (5) includes a four-way (502); the left annular groove labyrinth sealing layer (12) includes a left sealing platform three (121), a left sealing platform four (122) provided on the left column (101) and protruding inward, and a left sealing platform five (123) provided on the four-way (502) and protruding outward. A left sealing groove three (124) is formed between the left sealing platform three (121) and the left sealing platform four (122). The left sealing platform five (123) is accommodated in the left sealing groove three (124). The left sealing platform three (121), the left sealing platform four (122), the left sealing platform five (123) and the left sealing groove three (124) together form a labyrinth structure left annular groove labyrinth sealing layer (12). The right annular groove labyrinth sealing layer (14) includes a right sealing platform three (141) and a right sealing platform four (142) that are opened on the right column (701) and protrude inward, and a right sealing platform five (143) that is opened on the four-way (502) and protrudes outward. A right sealing groove three (144) is formed between the right sealing platform three (141) and the right sealing platform four (142). The right sealing platform three (141), the right sealing platform four (142), the right sealing platform five (143) and the right sealing groove three (144) together form the right annular groove labyrinth sealing layer (14) with a labyrinth structure.

6. The shipborne optoelectronic instrument horizontal shaft system with high sealing performance according to claim 5, characterized in that, The left shaft assembly (2) includes a left shaft (204) coaxial with the four-way assembly (5). A left bearing outer ring seat (201) and a left bearing inner ring cover (208) are connected to the left shaft (204). An angular contact bearing (205) is provided between the left bearing outer ring seat (201) and the left shaft (204). A left bearing outer ring cover (202) and a left bearing outer ring adapter (206) are connected to the left bearing outer ring seat (201). The left bearing outer ring cover (202) and the left shaft (204) are sealed with felt, and the left bearing outer ring adapter (206) and the left shaft (204) are sealed with felt. The right shaft assembly (9) includes a right shaft (906) coaxial with the four-way assembly (5); the right shaft (906) is provided with a right bearing outer ring seat (901) and a right bearing outer ring cover (902) provided on the right bearing outer ring seat (901); the right bearing outer ring seat (901) is connected to the right column (701); a deep groove ball bearing (904) is provided between the right bearing outer ring seat (901) and the right shaft (906); the right bearing outer ring seat (901) and the right shaft (906), and the right bearing outer ring cover (902) and the right shaft (906) are sealed by felt.

Images