CN111786328A - Flange plate for fixing space traveling wave tube high-voltage cable - Google Patents
Flange plate for fixing space traveling wave tube high-voltage cable Download PDFInfo
- Publication number
- CN111786328A CN111786328A CN202010614688.8A CN202010614688A CN111786328A CN 111786328 A CN111786328 A CN 111786328A CN 202010614688 A CN202010614688 A CN 202010614688A CN 111786328 A CN111786328 A CN 111786328A
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- China
- Prior art keywords
- cylindrical body
- wave tube
- voltage cable
- flange
- traveling wave
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
- H02G3/0675—Joints for connecting tubing to casing with means for preventing disengagement of conductors with bolts operating in a direction parallel to the conductors
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Insulated Conductors (AREA)
Abstract
The invention provides a flange for fixing a space traveling wave tube high-voltage cable, which comprises a mounting seat, a pressure ring, a screw cap and a heat-shrinkable sheath, wherein the mounting seat comprises a cylindrical body and a flange, the flange is fixed on the cylindrical body to divide the cylindrical body into two ends, and one end of the cylindrical body is provided with an external thread matched with the screw cap; the thermal shrinkage protective sleeve is arranged at the other end of the cylindrical body, and the pressing ring is arranged between the cylindrical body and the nut. The invention has simple and compact structure, small volume and light weight.
Description
Technical Field
The invention belongs to the technology of high-voltage cable fixing structures, and particularly relates to a flange plate for fixing a high-voltage cable of a space traveling wave tube.
Background
The high-voltage cable is a key component for connecting the traveling wave tube and the EPC in the space traveling wave tube and is the only path for high-voltage power supply of the traveling wave tube. The reliability of the high-voltage cable connection directly determines whether the whole traveling-wave tube amplifier can stably work. The unreliable high-voltage cable fixing flange can lead the high-voltage cable to be loosened under the action of external force in the test and use process of the travelling wave tube, and further leads the internal high-voltage lead to be stressed, damaged and failed.
The common space traveling wave tube high-voltage cable fixing flange disc at present generally has the following defects: 1. the copper wires are not firmly bound and fixed, and the shielding net is easy to separate; 2. the shielding net is bound and fixed on the cylindrical cylinder, and when the cable is twisted under the action of external force, the shielding net can slide on the cylinder, so that the cable can be twisted randomly; 3. the insecurity of the binding and fixing of the copper wires also causes poor grounding of the shielding net. Due to the design defects, cables are frequently loosened and separated or even internal leads are excessively twisted and stressed to be damaged in the process of delivering a certain type of space traveling wave tube developed by the factory to a user, so that the space traveling wave tube fails.
Disclosure of Invention
The invention aims to provide a flange plate for fixing a space traveling wave tube high-voltage cable.
The technical solution for realizing the purpose of the invention is as follows: the flange plate for fixing the high-voltage cable of the space traveling wave tube comprises a mounting seat, a pressing ring, a nut and a heat-shrinkable sheath, wherein the mounting seat comprises a cylindrical body and the flange plate, the flange plate is fixed on the cylindrical body to divide the cylindrical body into two ends, and one end of the cylindrical body is provided with an external thread matched with the nut; the thermal shrinkage protective sleeve is arranged at the other end of the cylindrical body, and the pressing ring is arranged between the cylindrical body and the nut.
Preferably, the other end of the mounting seat is provided with two sections of outwards-protruding circular rings, and the outer surfaces of the circular rings are provided with outer square planes at equal intervals.
Preferably, the mounting seat is made of an aluminum alloy material.
Preferably, the flange plate is provided with a mounting hole.
Preferably, the pressing ring is in a thin-wall cylindrical shape, one end of the cylinder is flanged outwards, and two rings of toothed rings are arranged on one surface, close to the cylinder, of the flanged edge.
Compared with the prior art, the invention has the following remarkable advantages: the invention is composed of only 4 parts, solves the problems that the shielding net is easy to be separated, the shielding net can slide on the cylinder when the cable is twisted under the action of external force, the cable can be twisted at will, and the grounding of the shielding net is poor, ensures the reliability of the whole tube, and has simple and compact structure, small volume and light weight.
The present invention is described in further detail below with reference to the attached drawings.
Drawings
Fig. 1 is a partial cross-sectional view of the present invention.
Figure 2 is a schematic view of a pressure ring.
Fig. 3 is a schematic view of a mount.
Figure 4 is a schematic view of a nut.
Detailed Description
As shown in fig. 1, the flange for fixing the high-voltage cable of the space traveling wave tube comprises a mounting seat 2, a pressure ring 4, a nut 3 and a heat-shrinkable sheath 5, wherein the mounting seat comprises a cylindrical body and a flange, the flange is fixed on the cylindrical body to divide the cylindrical body into two ends, and one end of the cylindrical body is provided with an external thread matched with the nut 3; the thermal shrinkage sheath 5 is arranged at the other end of the cylindrical body, and the pressing ring 4 is arranged between the cylindrical body and the screw cap 3.
As shown in fig. 2, the pressing ring 4 is an umbrella-shaped structure made of stainless steel, i.e. a thin-walled cylinder, one end of the cylinder is flanged outwards, and one surface of the flanged edge, which is close to the cylinder, is provided with two rings of toothed rings. When in use, the cylinder extends into the cylindrical body of the mounting seat 2, and the flanging is pressed at the port of the cylindrical body. The main function of the press ring 4 is to press and fix the cable shielding mesh. Two rings of toothed rings are processed at the edge of the umbrella-shaped compression ring, so that the cable shielding net slightly deforms in the extrusion process, and the fixing firmness is improved.
In a further embodiment, as shown in fig. 3, the other end of the mounting seat 2 is provided with two convex circular rings, and the outer surfaces of the circular rings are equally spaced and provided with outer square planes. The end of the mounting seat 2 is wrapped with a thermal shrinkage sheath 5 to provide bending buffer for the root of the high-voltage cable. In order to improve the firmness of the heat-shrinkable sheath 5 and prevent the heat-shrinkable sheath from slipping and rotating, outer square planes are arranged on the outer surface of the circular ring at equal intervals. When being installed, the heat-shrinkable sheath 5 is attached to the outer surface of the end head of the installation seat 2 to form firm fixation.
In a further embodiment, the mounting seat 2 is made of an aluminum alloy material.
Specifically, the flange plate is provided with a mounting hole. The mounting base 2 is fixed on the space traveling wave tube body through the mounting hole.
When assembling, the high-voltage cable 1 is inserted into the inner hole of the cylindrical body of the mounting seat 2; one end of the high-voltage cable shielding net 7 extending out of the cylindrical body is outwards turned; the press ring 4 is inserted into a gap between the high-voltage cable shielding net 7 and the high-voltage lead 6, and the edge of the press ring 4 is pressed on the high-voltage cable shielding net 7; the nut (3) is arranged on the end with the thread of the mounting seat 2, and the pressing ring 4 is pressed to ensure that the high-voltage cable shielding net 7 is extruded and fixed in a gap between the pressing ring 4 and the end face of the mounting seat; and sleeving the heat-shrinkable sheath 5 at the other end of the cylindrical body of the mounting seat 2. After the flange plate and the cable are assembled, screws penetrate through 4 holes in the flange of the mounting base 2, and the flange plate is assembled and fixed on the space traveling wave tube body.
The high-voltage cable of the space traveling wave tube is a key part for connecting a power supply and the traveling wave tube, and mainly comprises a plurality of internal high-voltage leads and an external shielding net. The internal lead is connected with each electrode of the space traveling wave tube and the power supply to form electrical connection; the shielding net forms mechanical protection and electromagnetic shielding for the high-voltage lead. In order to reliably connect the high-voltage cable to the traveling wave tube, the flange plate for fixing the high-voltage cable on the traveling wave tube needs to have the functions of firmly fixing the high-voltage cable, shielding the high-voltage lead, grounding the shielding layer of the high-voltage cable and bending and buffering the root part of the traveling wave tube of the high-voltage cable. When the flange plate is used for fixing and assembling a high-voltage cable and a traveling wave tube, a high-voltage lead inside the cable is required not to be stressed all the time to cause damage or damage.
The invention ensures that the cable is not separated when the cable is stressed externally, and the internal lead is not damaged by stress, thereby meeting the high reliability requirement of aerospace products. Meanwhile, the invention also has the characteristics of light weight and miniaturization, and meets the requirement of light weight of the whole space traveling wave tube.
The invention is composed of only 4 parts, solves the problems that the shielding net is easy to be separated, the shielding net can slide on the cylinder when the cable is twisted under the action of external force, the cable can be twisted at will, and the grounding of the shielding net is poor, ensures the reliability of the whole tube, and has simple and compact structure, small volume and light weight.
Claims (5)
1. The flange for fixing the high-voltage cable of the space traveling wave tube is characterized by comprising an installation seat (2), a compression ring (4), a nut (3) and a heat-shrinkable sheath (5), wherein the installation seat comprises a cylindrical body and a flange, the flange is fixed on the cylindrical body to divide the cylindrical body into two ends, and one end of the cylindrical body is provided with an external thread matched with the nut (3); the thermal shrinkage sheath (5) is arranged at the other end of the cylindrical body, and the pressing ring (4) is arranged between the cylindrical body and the screw cap (3).
2. The flange plate for fixing the high-voltage cable of the space traveling wave tube according to claim 1, wherein the other end of the mounting seat (2) is provided with two sections of convex circular rings, and the outer surfaces of the circular rings are equally spaced and provided with outer square planes.
3. The flange plate for fixing a high-voltage cable of a space traveling wave tube according to claim 1, wherein the mounting seat (2) is made of an aluminum alloy material.
4. The flange for fixing a high-voltage cable of a space traveling wave tube according to claim 1, wherein the flange is provided with mounting holes.
5. The flange plate for fixing the high-voltage cable of the space traveling-wave tube according to claim 1, wherein the press ring (4) is in the shape of a thin-walled cylinder, one end of the cylinder is flanged outwards, and two rings of toothed rings are arranged on one surface of the flanged edge, which is close to the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010614688.8A CN111786328B (en) | 2020-06-30 | 2020-06-30 | Flange plate for fixing space traveling wave tube high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010614688.8A CN111786328B (en) | 2020-06-30 | 2020-06-30 | Flange plate for fixing space traveling wave tube high-voltage cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111786328A true CN111786328A (en) | 2020-10-16 |
| CN111786328B CN111786328B (en) | 2021-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010614688.8A Active CN111786328B (en) | 2020-06-30 | 2020-06-30 | Flange plate for fixing space traveling wave tube high-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111786328B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825020A (en) * | 1957-05-01 | 1959-12-09 | Light & Power Accessories Comp | An improved clamping gland for armoured electric cables |
| GB930096A (en) * | 1960-12-01 | 1963-07-03 | Kay & Co Eng Ltd | Improvements in couplings and junctions for co-axial and like electric cables |
| SU1330367A1 (en) * | 1985-08-12 | 1987-08-15 | Предприятие П/Я А-7054 | Air-tight power seal for cable-wire rope |
| CN2849326Y (en) * | 2005-09-07 | 2006-12-20 | 中国船舶重工集团公司第七一○研究所 | Tensile joint |
| CN203660487U (en) * | 2013-12-04 | 2014-06-18 | 宝胜科技创新股份有限公司 | Through-wall cable terminal joint |
| CN104505796A (en) * | 2014-12-19 | 2015-04-08 | 中天科技海缆有限公司 | Double-layer armored submarine cable platform anchoring device |
| CN105610113A (en) * | 2016-03-21 | 2016-05-25 | 中天科技海缆有限公司 | Submarine cable fixing device with sealing and temporary clamping functions and fixing method |
| CN205791354U (en) * | 2016-06-14 | 2016-12-07 | 沈阳和新套管有限公司 | The core body mucilage binding structure of gas-insulated end in a kind of direct-current wall bushing |
| CN106229918A (en) * | 2016-09-13 | 2016-12-14 | 倍仕得电气科技（杭州）股份有限公司 | A kind of waterproof shielding cable fixing head |
| CN109586236A (en) * | 2017-09-29 | 2019-04-05 | 中航光电科技股份有限公司 | A kind of cable load component |
| CN209516589U (en) * | 2019-04-27 | 2019-10-18 | 思库机电工程技术(上海)有限公司 | A kind of cable metal connector shield assembly |
| CN110707631A (en) * | 2019-10-12 | 2020-01-17 | 中国商用飞机有限责任公司 | Wire harness sealing wall penetrating piece for fuel tank and mounting method thereof |
| CN111146753A (en) * | 2020-02-14 | 2020-05-12 | 上海西邦电气有限公司 | Flange for insulating shielding cylinder |
-
2020
- 2020-06-30 CN CN202010614688.8A patent/CN111786328B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825020A (en) * | 1957-05-01 | 1959-12-09 | Light & Power Accessories Comp | An improved clamping gland for armoured electric cables |
| GB930096A (en) * | 1960-12-01 | 1963-07-03 | Kay & Co Eng Ltd | Improvements in couplings and junctions for co-axial and like electric cables |
| SU1330367A1 (en) * | 1985-08-12 | 1987-08-15 | Предприятие П/Я А-7054 | Air-tight power seal for cable-wire rope |
| CN2849326Y (en) * | 2005-09-07 | 2006-12-20 | 中国船舶重工集团公司第七一○研究所 | Tensile joint |
| CN203660487U (en) * | 2013-12-04 | 2014-06-18 | 宝胜科技创新股份有限公司 | Through-wall cable terminal joint |
| CN104505796A (en) * | 2014-12-19 | 2015-04-08 | 中天科技海缆有限公司 | Double-layer armored submarine cable platform anchoring device |
| CN105610113A (en) * | 2016-03-21 | 2016-05-25 | 中天科技海缆有限公司 | Submarine cable fixing device with sealing and temporary clamping functions and fixing method |
| CN205791354U (en) * | 2016-06-14 | 2016-12-07 | 沈阳和新套管有限公司 | The core body mucilage binding structure of gas-insulated end in a kind of direct-current wall bushing |
| CN106229918A (en) * | 2016-09-13 | 2016-12-14 | 倍仕得电气科技（杭州）股份有限公司 | A kind of waterproof shielding cable fixing head |
| CN109586236A (en) * | 2017-09-29 | 2019-04-05 | 中航光电科技股份有限公司 | A kind of cable load component |
| CN209516589U (en) * | 2019-04-27 | 2019-10-18 | 思库机电工程技术(上海)有限公司 | A kind of cable metal connector shield assembly |
| CN110707631A (en) * | 2019-10-12 | 2020-01-17 | 中国商用飞机有限责任公司 | Wire harness sealing wall penetrating piece for fuel tank and mounting method thereof |
| CN111146753A (en) * | 2020-02-14 | 2020-05-12 | 上海西邦电气有限公司 | Flange for insulating shielding cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111786328B (en) | 2021-10-26 |
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