CN114279428B - Non-adhesive-joint sealing structure with power transmission function on liquid floating gyroscope shell and method - Google Patents
Non-adhesive-joint sealing structure with power transmission function on liquid floating gyroscope shell and method Download PDFInfo
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- CN114279428B CN114279428B CN202111486603.3A CN202111486603A CN114279428B CN 114279428 B CN114279428 B CN 114279428B CN 202111486603 A CN202111486603 A CN 202111486603A CN 114279428 B CN114279428 B CN 114279428B
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Abstract
The invention discloses a non-adhesive sealing structure with a power transmission function on a liquid floating meter shell. The conducting rod penetrates through the glass insulator, and two ends of the conducting rod are exposed; two ends of the conducting rod are respectively welded with the lead wires, so that reliable power transmission is ensured; the insulating glass body wraps the middle section of the conducting rod so that the middle section of the conducting rod is insulated from the outside; the insulating glass body is embedded into the mounting hole of the shell, and the fastening and sealing among the glass body, the mounting hole and the conducting rod are realized through a glass sealing technology. The shape and position sizes of the conducting rod are ensured by the graphite positioning tool in the sealing process, and the flowing range of the insulating glass body in the heating and melting state in the sealing process is controlled. The invention solves the problem of sealing reliability caused by glue failure in the glue joint glass insulator structure of the liquid floating instrument at present, greatly improves the structural strength and the high temperature resistance, and improves the long-term reliability of the liquid floating instrument.
Description
Technical Field
The invention relates to a non-adhesive sealing structure, and belongs to the field of precision instruments.
Background
The liquid floating gyroscope has the working characteristics that the floater component floats in floating oil in the shell, and the floater eliminates friction interference torque through floating liquid support, so that the precision stability of the gyroscope is improved. The shell of the gyroscope is sealed, the inside of the shell is isolated from the outside of the shell, and meanwhile, a power transmission device is arranged on the shell and is used as a structural carrier for the internal and external electric connection of the instrument.
At present, a glass insulator is generally used as a power transmission device of the liquid floated gyroscope, the insulator is assembled in a shell mounting hole in a gluing mode, and the insulator is fixed and sealed through gluing. The sealing reliability of the part is affected by the adhesive property, is not high temperature resistant and is easy to lose efficacy, so that the precision of the gyroscope is reduced, and the function of the instrument is seriously affected.
Disclosure of Invention
The technical problem solved by the invention is as follows: the problem that the sealing reliability of the splicing assembly part of the power transmission device on the liquid floated gyroscope shell is low is solved, the non-splicing sealing structure with the power transmission function on the liquid floated gyroscope shell is provided for improving the sealing reliability of the part, the sealing performance is improved on the premise that the inside and outside power transmission of the shell is reliable, the product design margin and the production yield are improved, and the reliability and the precision risk of later-stage application of the instrument are reduced.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a non-cementing seal structure that has power transmission function on liquid floated gyroscope casing, includes conducting rod, insulating glass body and casing mounting hole, and the conducting rod passes glass insulator, and the conducting rod both ends are exposed from glass insulator terminal surface, glass insulator and conducting rod middle section sealing connection, along a plurality of casing mounting holes of circumference distribution on the lateral wall of casing, glass insulator install in the casing mounting hole and with casing mounting hole sealing connection.
The glass insulator, the conducting rod and the shell mounting hole are hermetically connected by adopting a glass sealing process, so that the power transmission device and the shell form a whole.
And in the sealing process of the glass insulator, the conducting rod and the shell mounting hole, the first graphite positioning tool and the second graphite positioning tool are used for ensuring the shape and position size of the conducting rod, simultaneously controlling the flowing range of the insulating glass body in a heating and melting state in the sealing process, and removing the first graphite positioning tool and the second graphite positioning tool after sealing.
The second graphite positioning tool is of an annular structure; the first graphite positioning tool comprises two semicircular ring structures which are spliced to form a circular ring; the first graphite positioning tool and the second graphite positioning tool are respectively arranged on the outer side and the inner side of the shell to clamp the shell, and the first graphite positioning tool and the second graphite positioning tool are provided with conducting rod positioning holes corresponding to the positions of the shell mounting holes and used for limiting the positions and the sizes of the conducting rods.
The two ends of the shell mounting hole are respectively provided with a first annular groove and a second annular groove, and the first graphite positioning tool and the second graphite positioning tool are respectively tightly attached to the first annular groove and the second annular groove to control the flow range of the insulating glass body in a heating and melting state in the sealing process.
A non-adhesive sealing method with a power transmission function on a liquid floated gyroscope shell comprises the following steps:
vertically placing the shell on a working table in the axial direction, aligning the conducting rod positioning hole on the second graphite positioning tool with the shell mounting hole on the shell, and tightly attaching the outer wall of the second graphite positioning tool to the inner wall of the shell; respectively penetrating each conducting rod through a shell mounting hole on the shell and a conducting rod positioning hole on the second graphite positioning tool, wherein the conducting rods are horizontal to the working table surface and are axially vertical to a central shaft of the shell; filling the insulating glass body blank into each shell mounting hole; and butting the two semicircular rings of the first graphite positioning tool, so that the conducting rod positioning hole in the first graphite positioning tool penetrates through the conducting rod, and the inner wall of the first graphite positioning tool is pressed close to the outer wall of the shell.
Putting the shell into a sealing furnace, adjusting the protective atmosphere and temperature, and carrying out glass-metal sealing assembly;
in the sealing process, the first graphite positioning tool and the second graphite positioning tool are tightly attached to a first annular groove and a second annular groove which are arranged on the shell mounting hole, and the flow range of the insulating glass body in a heating and melting state in the sealing process is controlled;
and removing the first graphite positioning tool and the second graphite positioning tool after sealing to obtain the complete shell assembly.
Compared with the prior art, the invention has the beneficial effects that:
(1) On the premise of not influencing the integral structure of the instrument, the invention ensures reliable power transmission and insulation inside and outside the shell, and simultaneously utilizes the sealing technology to directly connect the insulator, the conductive rod and the mounting hole in a sealing way, thereby greatly improving the assembly strength.
(2) The invention can reduce the sealing failure risk of the product in the long-term storage period and improve the long-term precision and reliability of the instrument.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific examples.
As shown in fig. 1, a non-glued sealing structure with power transmission function on a liquid floated gyroscope shell comprises a conducting rod 1, an insulating glass body 2 and shell mounting holes 3, wherein the conducting rod 1 penetrates through the glass insulator 2, two ends of the conducting rod are exposed, the glass insulator 2 is in sealing connection with the middle section of the conducting rod 1, a plurality of shell mounting holes 3 are distributed on the side wall of the shell along the circumferential direction, and the glass insulator 2 is in sealing connection with the shell mounting holes 3.
The glass insulator 2, the conducting rod 1 and the shell mounting hole 3 are assembled without using bonding glue, and are integrally and hermetically connected by adopting a glass sealing technology, so that the connecting strength is high, and the sealing performance is stable.
The first graphite positioning tool 4 and the second graphite positioning tool 5 are respectively of an arc-shaped structure, the first graphite positioning tool 4 and the second graphite positioning tool 5 are respectively installed on the outer side and the inner side of the shell to clamp the shell, and conducting rod positioning holes corresponding to the positions of the shell installation holes 3 are formed in the first graphite positioning tool 4 and the second graphite positioning tool 5 and used for limiting the positions and the sizes of the conducting rods 1.
The first graphite positioning tool 4 and the second graphite positioning tool 5 are used for ensuring the shape and position sizes of the conducting rod 1 in the sealing process of the glass insulator 2, the conducting rod 1 and the shell mounting hole 3, the flowing range of the insulating glass body 2 in a heating and melting state in the sealing process is controlled, and the first graphite positioning tool 4 and the second graphite positioning tool 5 are removed after sealing is completed.
The two ends of the shell mounting hole 3 are respectively provided with a first annular groove 6 and a second annular groove 7, and the first graphite positioning tool 4 and the second graphite positioning tool 5 are respectively attached to the first annular groove 6 and the second annular groove 7 to control the flowing range of the insulating glass body 2 in a heating and melting state in the sealing process.
A non-adhesive sealing method with a power transmission function on a liquid floated gyroscope shell comprises the following steps:
vertically placing the shell on a working table in the axial direction, aligning the conducting rod positioning hole on the second graphite positioning tool 5 with the shell mounting hole 3 on the shell to enable the conducting rod positioning hole and the shell mounting hole to be coaxial, and enabling the outer wall of the second graphite positioning tool 5 to be close to the inner wall of the shell; each conducting rod 1 penetrates through a shell mounting hole 3 on the shell and a conducting rod positioning hole on the second graphite positioning tool 5, and at the moment, the conducting rod 1 is horizontal to the working table surface and is axially vertical to the central shaft of the shell; filling the blank of the insulating glass body 2 into each shell mounting hole 3; the two semicircular rings of the first graphite positioning tool 4 are butted, so that the conducting rod positioning hole in the first graphite positioning tool 4 penetrates through the conducting rod 1, and the inner wall of the first graphite positioning tool 4 is pressed close to the outer wall of the shell.
And (4) putting the shell into a sealing furnace, adjusting the protective atmosphere and temperature, and carrying out glass-metal sealing assembly.
In the sealing process, the first graphite positioning tool 4 and the second graphite positioning tool 5 are tightly attached to the first annular groove 6 and the second annular groove 7 which are arranged on the shell mounting hole 3, so that the molten glass blank is prevented from flowing downwards under the action of gravity in the high-temperature sealing process, and the flowing range of the insulating glass body in the heating and melting state in the sealing process is controlled.
And after sealing, removing the first graphite positioning tool 4 and the second graphite positioning tool 5 to obtain a complete shell assembly, wherein the electric connection part on the shell assembly is in glass-metal sealing connection, and the shell assembly has the characteristics of stable electric connection, good shell insulation, high connection strength of the assembly part, high temperature resistance and high sealing reliability.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (4)
1. The non-glued sealing structure with the power transmission function on the shell of the liquid floated gyroscope is characterized by comprising a conducting rod (1), an insulating glass body (2) and a shell mounting hole (3), wherein the conducting rod (1) penetrates through the glass insulator (2), two ends of the conducting rod (1) are exposed out of the end face of the glass insulator (2), the glass insulator (2) is hermetically connected with the middle section of the conducting rod (1), a plurality of shell mounting holes (3) are distributed on the side wall of the shell along the circumferential direction, and the glass insulator (2) is mounted in the shell mounting hole (3) and is hermetically connected with the shell mounting hole (3);
the glass insulator (2), the conducting rod (1) and the shell mounting hole (3) are hermetically connected by adopting a glass sealing process, so that the power transmission device and the shell form a whole;
in the sealing process of the glass insulator (2), the conducting rod (1) and the shell mounting hole (3), the first graphite positioning tool (4) and the second graphite positioning tool (5) are used for ensuring the shape and position size of the conducting rod (1), the flowing range of the insulating glass body (2) in a heating and melting state in the sealing process is controlled, and the first graphite positioning tool (4) and the second graphite positioning tool (5) are removed after sealing is completed.
2. The non-glued sealing structure with the power transmission function on the liquid floated gyroscope shell as claimed in claim 1, wherein the second graphite positioning tool (5) is of an annular structure; the first graphite positioning tool (4) comprises two semicircular ring structures which are spliced to form a circular ring; the first graphite positioning tool (4) and the second graphite positioning tool (5) are respectively installed on the outer side and the inner side of the shell to clamp the shell, and conducting rod positioning holes corresponding to the positions of the shell mounting holes (3) are formed in the first graphite positioning tool (4) and the second graphite positioning tool (5) and used for limiting the positions and the sizes of the conducting rods (1).
3. The non-adhesive sealing structure with the power transmission function on the shell of the liquid floated gyroscope according to claim 2, wherein a first annular groove (6) and a second annular groove (7) are respectively arranged at two ends of the shell mounting hole (3), and the first graphite positioning tool (4) and the second graphite positioning tool (5) are respectively attached to the first annular groove (6) and the second annular groove (7) to control the flow range of the insulating glass body (2) in a heating and melting state in the sealing process.
4. A non-adhesive sealing method with a power transmission function on a liquid floated gyroscope shell is characterized by comprising the following steps:
vertically placing the shell on a working table in the axial direction, aligning the conducting rod positioning hole on the second graphite positioning tool (5) with the shell mounting hole (3) on the shell, and tightly attaching the outer wall of the second graphite positioning tool (5) to the inner wall of the shell; respectively penetrating each conducting rod (1) through a shell mounting hole (3) on the shell and a conducting rod positioning hole on the second graphite positioning tool (5), wherein the conducting rods (1) are horizontal to the working table surface and are axially vertical to the central shaft of the shell; filling the blank of the insulating glass body (2) in each shell mounting hole (3); butting the two semicircular rings of the first graphite positioning tool (4) to enable a conducting rod positioning hole in the first graphite positioning tool (4) to penetrate through the conducting rod (1), so that the inner wall of the first graphite positioning tool (4) is close to the outer wall of the shell;
putting the shell into a sealing furnace, adjusting the protective atmosphere and temperature, and carrying out glass-metal sealing assembly;
in the sealing process, a first graphite positioning tool (4) and a second graphite positioning tool (5) are tightly attached to a first annular groove (6) and a second annular groove (7) arranged on a shell mounting hole (3), and the flow range of the insulating glass body in the heating and melting state in the sealing process is controlled;
and removing the first graphite positioning tool (4) and the second graphite positioning tool (5) after sealing to obtain a complete shell assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486603.3A CN114279428B (en) | 2021-12-07 | 2021-12-07 | Non-adhesive-joint sealing structure with power transmission function on liquid floating gyroscope shell and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486603.3A CN114279428B (en) | 2021-12-07 | 2021-12-07 | Non-adhesive-joint sealing structure with power transmission function on liquid floating gyroscope shell and method |
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| Publication Number | Publication Date |
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| CN114279428A CN114279428A (en) | 2022-04-05 |
| CN114279428B true CN114279428B (en) | 2023-04-14 |
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| CN202111486603.3A Active CN114279428B (en) | 2021-12-07 | 2021-12-07 | Non-adhesive-joint sealing structure with power transmission function on liquid floating gyroscope shell and method |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475975A (en) * | 1967-04-10 | 1969-11-04 | Gen Motors Corp | Electromagnetic gyroscope float assembly |
| FR2545603B1 (en) * | 1983-05-06 | 1986-02-28 | Sfim | GYROSCOPIC OR GYROMETRIC APPARATUS |
| CN104154907A (en) * | 2014-07-18 | 2014-11-19 | 中国船舶重工集团公司第七0七研究所 | Floater suspension structure of liquid floated gyroscope |
| CN108458701A (en) * | 2018-03-30 | 2018-08-28 | 天津大学 | A kind of suspension-wire type float support construction |
| CN109781085A (en) * | 2018-12-09 | 2019-05-21 | 西安航天精密机电研究所 | A kind of three float-type gyroscopes of miniaturization |
| CN110711918B (en) * | 2019-09-23 | 2021-06-11 | 北京航天控制仪器研究所 | Fixing tool and method for inertial instrument outer ring insulator lead |
| CN112198429B (en) * | 2020-09-11 | 2022-10-25 | 中国船舶重工集团公司第七0七研究所 | Sealing and fixing device for testing aerospace gyro motor in high-temperature and low-temperature environment |
| CN113447009B (en) * | 2021-05-24 | 2023-01-10 | 西安航天时代精密机电有限公司 | Liquid floating gyroscope trial assembly device based on full rubber ring sealing structure |
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