CN105626921A - Outer lead outgoing structure for servo valve - Google Patents

Outer lead outgoing structure for servo valve Download PDF

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Publication number
CN105626921A
CN105626921A CN201410599261.XA CN201410599261A CN105626921A CN 105626921 A CN105626921 A CN 105626921A CN 201410599261 A CN201410599261 A CN 201410599261A CN 105626921 A CN105626921 A CN 105626921A
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CN
China
Prior art keywords
outer lead
lid
socket
servo valve
shrink tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410599261.XA
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Chinese (zh)
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CN105626921B (en
Inventor
刘雅洁
韩旭
周吉武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Beijing Research Institute of Precise Mechatronic Controls
Original Assignee
China Academy of Launch Vehicle Technology CALT
Beijing Research Institute of Precise Mechatronic Controls
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Publication date
Application filed by China Academy of Launch Vehicle Technology CALT, Beijing Research Institute of Precise Mechatronic Controls filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN201410599261.XA priority Critical patent/CN105626921B/en
Publication of CN105626921A publication Critical patent/CN105626921A/en
Application granted granted Critical
Publication of CN105626921B publication Critical patent/CN105626921B/en
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Abstract

The invention belongs to the field of servo valve auxiliary equipment and particularly discloses an outer lead outgoing structure for a servo valve. The outer lead outgoing structure comprises a structure connecting part and a lead outgoing part. The structure connecting part comprises a cap, a socket, a sealing ring and a cover. The left side of the cap is provided with a cylindrical outlet. The cap is connected with the cover. The socket is arranged between the cap and the cover. The sealing ring is arranged between the socket and the cover. The socket is provided with socket through holes. An outer lead penetrates out of the cap through the cylindrical outlet in the left side of the cap. The part, outside the cap, of the outer side of a heat shrink tube A on the outer lead is provided with a layer of wave-proof sleeve. A layer of heat shrink tube B is arranged on the outer side of the wave-proof sleeve and the outer wall of the cylindrical outlet in the left side of the cap. The outer lead is welded to binding posts on the socket in the cap and the cover. The outer lead outgoing structure can be used for fixing and sealing of the outer lead of the servo valve and guarantee the high reliability of the servo valve.

Description

A kind of servo valve outer lead outlet structure
Technical field
The invention belongs to servo valve auxiliary apparatus field, be specifically related to a kind of servo valve outer lead outlet structure.
Background technology
Electrohydraulic servo valve is the core fine control element of servosystem, and the current signal of milliampere level is converted to the high power hydraulic flow signal controlling servo action by it, and reliability and contamination resistance are had high requirement.
The external lead-out wire of servo valve is connected to servo control mechanism; its outlet structure should be easy to the fixing of outer lead; to prevent applied external force from directly acting on solder joint; outer lead and solder joint should there be is good protective effect; and outlet structure should have good sealing; servo valve can be played protection against the tide, dust-proof effect, reduce the probability that servo valve fifth wheel occurs, increase the reliability of servo valve.
Current servo valve outlet major part adopts semi open model structure, can not effectively fix for outer lead, and not have sealing property.
Summary of the invention
It is an object of the invention to provide a kind of servo valve outer lead outlet structure, it is possible to for the fixing of servo valve outer lead and sealing, it is ensured that the high reliability of servo valve.
Realize the technical scheme of the object of the invention:
A kind of servo valve outer lead outlet structure, it includes connection section and lead-in wire outgoing line part; Described connection section includes lid, socket, sealing ring and cover; The left side of lid is provided with cylindrical outlet; Cover and be connected with cover; It is provided with socket between lid and cover, between socket and cover, is provided with sealing ring; Socket is provided with binding post; Described lead-in wire outgoing line part includes outer lead, heat-shrink tube A, heat-shrink tube B, wave prevention sleeve; The outside of outer lead is provided with one layer of heat-shrink tube A; Outer lead passes lid in the cylindrical outlet in lid left side; The outside of the heat-shrink tube A on outer lead is provided with one layer of wave prevention sleeve in the part outside lid; The outer wall of the cylindrical outlet in the outside of wave prevention sleeve and lid left side is provided with one layer of heat-shrink tube B; Outer lead is covering with cover interior welds on the binding post of socket.
Described outer lead is provided with the polyfluortetraethylene pipe of parcel outer lead a section of jack connector post place.
The described binding post on socket has 4.
The cylindrical outlet outer wall in described lid left side is provided with a cannelure, and cannelure is provided with Bombyxmori Linnaeus silk thread, and heat-shrink tube B is fastened by Bombyxmori Linnaeus silk thread.
The Advantageous Effects of the present invention is in that:
A kind of servo valve outer lead outlet structure provided by the invention by being designed as the cylindrical outlet structure of complete closure by lid so that servo valve sealing is greatly improved; By outer lead was being used the protection of heat-shrink tube, anti-wave tube, heat-shrink tube multilamellar before lid, it is to avoid lead-in wire bundle, when passing through to cover internal, friction damage occurs, it is to avoid by external force, certain root lead-in wire is individually caused that solder joint ruptures; By heat-shrink tube lead-in wire is fixed on and covers; and by the circular ring slot place tight heat-shrink tube of mulberry silk linear system, it is to avoid the lead-in wire relative motion with lid, isolate external force to protect solder joint; further increase the external sealing of servo valve simultaneously, improve protection against the tide, anti-dust performance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of servo valve outer lead outlet structure provided by the present invention;
Fig. 2 is the upward view of Fig. 1.
In figure: 1. lid, 2. outer lead, 3. heat-shrink tube A, 4. wave prevention sleeve, 5. heat-shrink tube B, 6. Bombyxmori Linnaeus silk thread, 7. polyfluortetraethylene pipe, 8. socket, 9. sealing ring, 10. cover, 11. lid through holes, 12. cannelures.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As it is shown in figure 1, a kind of servo valve outer lead outlet structure provided by the present invention includes connection section and lead-in wire outgoing line part.
Connection section includes lid 1, socket 8, sealing ring 9 and cover 10. The left side of lid 1 is provided with cylindrical outlet. The bottom surface of lid 1 distributed four lid through holes 11 (as shown in Figure 2), lid 1 and cover 10 and connect by being located at the screw at lid through hole 11 place, be provided with socket 8 between lid 1 and cover 10, between socket 8 and cover 10, be provided with sealing ring 9. Socket 8 is provided with 4 binding posts.
Lead-in wire outgoing line part includes outer lead 2, heat-shrink tube A3, heat-shrink tube B5, wave prevention sleeve 4 and Bombyxmori Linnaeus silk thread 6. The outside of outer lead 2 is provided with one layer of heat-shrink tube A3. Outer lead 2 passes lid 1 in the cylindrical outlet covered on the left of in the of 1. Outside lid 1, the outside of the heat-shrink tube A3 on outer lead 2 is provided with one layer of wave prevention sleeve 4, and wave prevention sleeve 4 is used for preventing external electromagnetic interference. The outer wall of the cylindrical outlet on the left of the outside of wave prevention sleeve 4 and lid 1 is provided with one layer of heat-shrink tube B5, heat-shrink tube B5 and is fixed together with lid 1 by outer lead 2. Being provided with a cannelure 12 on cylindrical outlet outer wall on the left of lid 1, cannelure 12 is provided with Bombyxmori Linnaeus silk thread 6, and heat-shrink tube B5 is fastened by Bombyxmori Linnaeus silk thread 6, it is prevented that heat-shrink tube B5 comes off. Cannelure 12 is the circular ring slot of wide 1mm, deep 0.2mm.
Article 4, outer lead 2 at lid 1 and covers 10 interior welds on 4 binding posts of socket 8, is respectively provided with the polyfluortetraethylene pipe 7 of parcel outer lead 2 at each jack connector post place.
Article 4, the solder joint of outer lead and 4 binding posts, through the protection of the present invention, solder joint is not easy to be destroyed, and invention enhances the sealing of servo valve, improves protection against the tide, anti-dust performance.
Above in conjunction with drawings and Examples, the present invention is explained in detail, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible under the premise without departing from present inventive concept, make various change. The content not being described in detail in the present invention all can adopt prior art.

Claims (4)

1. a servo valve outer lead outlet structure, it is characterised in that: it includes connection section and lead-in wire outgoing line part; Described connection section includes lid (1), socket (8), sealing ring (9) and cover (10); The left side of lid (1) is provided with cylindrical outlet; Lid (1) is connected with cover (10); It is provided with socket (8) between lid (1) and cover (10), between socket (8) and cover (10), is provided with sealing ring (9); Socket (8) is provided with binding post; Described lead-in wire outgoing line part includes outer lead (2), heat-shrink tube A (3), heat-shrink tube B (5), wave prevention sleeve (4); The outside of outer lead (2) is provided with one layer of heat-shrink tube A (3); Outer lead (2) passes lid (1) in the cylindrical outlet in lid (1) left side; The outside of the heat-shrink tube A (3) on outer lead (2) is provided with one layer of wave prevention sleeve (4) in the part that lid (1) is outside; The outer wall of the cylindrical outlet in the outside of wave prevention sleeve (4) and lid (1) left side is provided with one layer of heat-shrink tube B (5); Outer lead (2) is at lid (1) and covers (10) interior welds on the binding post of socket (8).
2. a kind of servo valve outer lead outlet structure according to claim 1, it is characterised in that: described outer lead (2) is provided with the polyfluortetraethylene pipe (7) of parcel outer lead (2) a section of jack connector post place.
3. a kind of servo valve outer lead outlet structure according to claim 2, it is characterised in that: the described binding post on socket (8) has 4.
4. a kind of servo valve outer lead outlet structure according to claim 3, it is characterized in that: the cylindrical outlet outer wall in described lid (1) left side is provided with a cannelure (12), cannelure (12) is provided with Bombyxmori Linnaeus silk thread (6), and heat-shrink tube B (5) is fastened by Bombyxmori Linnaeus silk thread (6).
CN201410599261.XA 2014-10-30 2014-10-30 A kind of servo valve outer lead outlet structure Active CN105626921B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410599261.XA CN105626921B (en) 2014-10-30 2014-10-30 A kind of servo valve outer lead outlet structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410599261.XA CN105626921B (en) 2014-10-30 2014-10-30 A kind of servo valve outer lead outlet structure

Publications (2)

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CN105626921A true CN105626921A (en) 2016-06-01
CN105626921B CN105626921B (en) 2018-05-18

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1046811A1 (en) * 1982-06-25 1983-10-07 Предприятие П/Я В-8337 Detachable joint
JP2005293957A (en) * 2004-03-31 2005-10-20 Smk Corp Cable wire relay connector and cable wire relay contact
CN202172163U (en) * 2011-08-18 2012-03-21 福州迈可博电子科技有限公司 Cable assembly possessing reinforced pressure welding type connector
CN202308592U (en) * 2011-10-24 2012-07-04 北京航天长征飞行器研究所 Miniaturized coaxial feed structure for element antenna
CN102593655A (en) * 2012-03-22 2012-07-18 上海航天科工电器研究院有限公司 Electric connector sealing structure
CN202918109U (en) * 2012-11-07 2013-05-01 重庆红宇精密工业有限责任公司 Electromagnetic shielded and sealed motor out-going line

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1046811A1 (en) * 1982-06-25 1983-10-07 Предприятие П/Я В-8337 Detachable joint
JP2005293957A (en) * 2004-03-31 2005-10-20 Smk Corp Cable wire relay connector and cable wire relay contact
CN202172163U (en) * 2011-08-18 2012-03-21 福州迈可博电子科技有限公司 Cable assembly possessing reinforced pressure welding type connector
CN202308592U (en) * 2011-10-24 2012-07-04 北京航天长征飞行器研究所 Miniaturized coaxial feed structure for element antenna
CN102593655A (en) * 2012-03-22 2012-07-18 上海航天科工电器研究院有限公司 Electric connector sealing structure
CN202918109U (en) * 2012-11-07 2013-05-01 重庆红宇精密工业有限责任公司 Electromagnetic shielded and sealed motor out-going line

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Publication number Publication date
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