CN219233534U - Armored coaxial cable drawing production line for nuclear power - Google Patents
Armored coaxial cable drawing production line for nuclear power Download PDFInfo
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- CN219233534U CN219233534U CN202320181106.0U CN202320181106U CN219233534U CN 219233534 U CN219233534 U CN 219233534U CN 202320181106 U CN202320181106 U CN 202320181106U CN 219233534 U CN219233534 U CN 219233534U
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Abstract
The application relates to the technical field of cable manufacturing, particularly, relate to an armoured coaxial cable draws production line for nuclear power, including feeding frame, pre-straightening machine, drawing production line rack, electronic receipts work or material rest and pit furnace that connect gradually, wherein: the feeding frame is used for placing the semi-finished cables; the pre-straightening machine is arranged between the feeding frame and the drawing production line rack and is used for straightening the semi-finished cable; the drawing production line bench is provided with a drawing die combination device, a loop-chain type drawing machine and a polishing machine, and is used for reducing, continuously drawing and polishing the cable; the electric material receiving rack is arranged at the rear end of the drawing production line rack and is used for rolling the drawn semi-finished cable; pit furnaces are used for annealing semi-finished cables. The production of hundreds of meters long cable can be completed by only using a single drawing production line and matching with a pit furnace, the equipment quantity is small, the occupied area is small, the continuity of the production process is good, the equipment is easy to maintain, and the labor intensity of workers can be greatly reduced.
Description
Technical Field
The application relates to the technical field of cable manufacturing, in particular to an armored coaxial cable drawing production line for nuclear power.
Background
The armoured coaxial cable is a cable which adopts metal materials such as stainless steel and the like as a shell and ceramic powder such as magnesia, silicon dioxide and the like as insulating materials, has the characteristics of high temperature resistance above 600 ℃, ultrahigh irradiation dose resistance, high reliability and the like, and is mainly used for electric signal transmission under severe environments such as high temperature, high humidity, strong irradiation and the like. In the key equipment with high reliability requirements such as reactor measurement of the current nuclear power station, monitoring of a strong radiation field under accident working conditions, such as reactor core measurement, reactor core outside measurement, reactor core temperature measurement, ionization chambers after containment accidents and the like, armored coaxial cables are almost adopted to transmit signals. The application places not only provide the ultrahigh temperature and ultrahigh irradiation resistance requirements for the series of products, but also provide the requirements of high-frequency signal transmission, small attenuation, low standing wave and good bending performance. The armored cable can be welded with the metal shell of the sensor and the connector shell in a full-sealing way, so that the equipment can be kept isolated from the outside air after long-time irradiation aging, and equipment failure caused by water seepage, humidity and other problems is avoided. Meanwhile, the ceramic powder belongs to inorganic materials, and the structure is not changed basically under radiation irradiation, so that the service life of the equipment can be ensured to be long enough.
Because of the need for armored coaxial cables for nuclear power to transmit detector signals uninterruptedly from within the containment to outside the containment, the length requirements for a single cable are often more than two hundred meters. In the prior art, the armored coaxial cable with the length mainly adopts a production process of continuously drawing a seamless steel tube. The existing armored cable production line mainly adopts the following technical scheme that firstly, two or more straight drawing machines are used for drawing the length of the cable to tens of meters in a successive drawing mode. Because of the limitation of the drawing mode, the length of the cable produced by the straight drawing machine cannot be larger than the length of the roller way, and the longer the cable to be produced, the longer the length of the straight drawing machine is, the corresponding increase of the length of the straight drawing machine is required. If the cable length is further stretched to several hundred meters, drawing with a coil drawing machine is required. The reel puller has no limitation on the cable pulling length, but the reel puller needs to fix the cable end on the drum, and the drum rotates to provide pulling force required by pulling, so that the shearing force applied to the cable bending part during pulling is extremely easy to damage the internal structure of the cable. Besides the straight drawing machine and the disc drawing machine, the cable production line is also provided with a roller hearth furnace and a pit furnace for annealing after cable drawing, so that the whole set of production line occupies a large area. In addition, because the straight drawing machine and the drawing and shrinking die used by the coiling and drawing machine are of an integrated structure, before each cable drawing, one end of the cable needs to be shrunk by the tip rolling machine or the shrinking machine to pass through the die, the working procedure is complex, and the continuous production of the cable is not facilitated.
Disclosure of Invention
The utility model provides an armoured coaxial cable draws production line for nuclear power adopts drawing die assembly and endless chain formula drawbench to carry out the armoured coaxial cable drawing production for nuclear power, only uses single drawing production line and cooperates the pit furnace just can accomplish the production of hundreds of meters long cable.
In order to achieve the above-mentioned purpose, the application provides an armoured coaxial cable draws production line for nuclear power, including feeding frame, pre-straightening machine, drawing production line rack, electronic receipts work or material rest and pit furnace that connect gradually, wherein: the feeding frame is used for placing the semi-finished cables; the pre-straightening machine is arranged between the feeding frame and the drawing production line rack and is used for straightening the semi-finished cable; the drawing production line bench is provided with a drawing die combination device, a loop-chain type drawing machine and a polishing machine, and is used for reducing, continuously drawing and polishing the cable; the electric material receiving rack is arranged at the rear end of the drawing production line rack and is used for rolling the drawn semi-finished cable; pit furnaces are used for annealing semi-finished cables.
Further, the pre-straightener includes a horizontal straightener and a vertical straightener.
Further, the drawing die combined device comprises a plurality of drawing dies with different aperture sizes, and each drawing die comprises a hydraulic driving mechanism, a sliding rail and a drawing cavity.
Further, the endless chain type drawing machine includes a synchronizing gear, an endless chain belt, a cable pressing block and a tensioning device, wherein: the synchronous gear comprises a front gear and a rear gear; two ends of the annular chain belt are respectively connected with the front gear and the rear gear; the cable briquetting sets up in annular chain belt inboard, through the fix with screw on annular chain belt, and evenly arrange along annular chain belt, overspeed device tensioner sets up in annular chain belt outside, comprises eccentric wheel and tensioning plate.
Further, a plurality of semicircular grooves are formed in the cable pressing block.
Further, the endless chain type drawing machine can perform radial translation relative to the semi-finished cable.
Further, the tension force of the electric material collecting frame is smaller than the drawing force of the endless chain type drawing machine.
Use novel armoured coaxial cable drawing production line for nuclear power that provides has following beneficial effect:
the utility model provides a drawing die composite set central draw hole can be opened and shut through hydraulic means control, can directly pass before the cable draws, need not rolling mill or head shrinking machine, simplified production process, adopt the endless chain formula drawbench to carry out continuous drawing to the cable, need not the dish and draw the machine, avoided drawing the damage of in-process cable, only use single drawing production line and cooperate the pit furnace just can accomplish the production of hundreds of meters long cable, equipment is few and area is little, production process continuity is good, equipment easy to maintain, but greatly reduced workman's intensity of labour, provide the feasibility for the large-scale batch production of armoured coaxial cable for the nuclear power.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:
fig. 1 is a schematic structural view of a drawing production line of an armored coaxial cable for nuclear power provided according to an embodiment of the present application;
fig. 2 is a schematic view of a drawing die provided according to an embodiment of the present application;
fig. 3 is an internal cross-sectional view of a drawing die provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic diagram of a endless chain type drawing machine provided in accordance with an embodiment of the present application;
FIG. 5 is a schematic diagram of a looped-chain type drawing machine cable press provided according to an embodiment of the present application;
in the figure: 1-feeding frame, 2-pre-straightener, 3-drawing production line rack, 4-drawing die combination device, 41-drawing die, 42-hydraulic driving mechanism, 43-sliding rail, 44-drawing cavity, 5-endless chain type drawing machine, 51-synchronous gear, 52-endless chain belt, 53-cable briquetting, 54-tensioning device, 6-polishing machine, 7-electric material collecting rack and 8-pit furnace.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the application provides an armored coaxial cable drawing production line for nuclear power, which comprises a feeding frame 1, a pre-straightening machine 2, a drawing production line rack 3, an electric material receiving frame 7 and a pit furnace 8 which are sequentially connected, wherein: the feeding frame 1 is used for placing semi-finished cables; the pre-straightening machine 2 is arranged between the feeding frame 1 and the drawing production line frame 3 and is used for straightening a semi-finished cable; the drawing production line bench 3 is provided with a drawing die combination device 4, a endless chain type drawing machine 5 and a polishing machine 6, which are used for reducing, continuously drawing and polishing the cable; the electric material collecting rack 7 is arranged at the rear end of the drawing production line rack 3 and is used for rolling the drawn semi-finished cable; the pit furnace 8 is used for annealing of the semifinished cable.
Specifically, the armoured coaxial cable for nuclear power that this application embodiment provided draws production line earlier places semi-manufactured goods armoured coaxial cable for nuclear power on feeding frame 1, carries out the system of rolling up of cable through the electronic receipts work or material rest 7 of rear end, makes the cable loop through the straightening machine 2 in advance and carries out the straightening of cable, carries out the undergauge of cable through drawing die assembly device 4, carries out the continuous drawing of cable through chain-link drawbench 5, carries out the polishing of cable through burnishing machine 6, carries out the cable annealing with the cable of rolling up at last through pit furnace 8, constantly repeats above-mentioned process, draws armoured coaxial cable for nuclear power to the length of required diameter, realizes the drawing production of armoured coaxial cable for nuclear power.
Further, the pre-straightener 2 includes a horizontal straightener and a vertical straightener. Straightening of the semi-finished cable in both the horizontal dimension and the vertical dimension can be achieved by the pre-straightener 2.
Further, as shown in fig. 2-3, the drawing die assembly device 4 includes a plurality of drawing dies 41 with different aperture sizes, and each drawing die 41 includes a hydraulic driving mechanism 42, a slide rail 43, and a drawing cavity 44. The drawing die combination device 4 is arranged at the front end of the drawing production line bench 3, a plurality of drawing dies 41 with different calibers are arranged according to actual conditions, and different diameter reduction of the cable is realized by adopting a mode of splicing the plurality of drawing dies 41. Each drawing die 41 can be opened or closed by a sliding rail 43 under the pushing of a hydraulic driving mechanism 42, and the diameter of the cable can be reduced after the drawing dies are closed in place, and a complete drawing cavity 44 is formed. The drawing cavity 44 of the drawing die 41 adopts a multi-component splicing mode, the cable can pass through the drawing die without shrinking the head before drawing, and the drawing die 41 can simultaneously realize two functions of reducing the cable and drawing the cavity 44 after being closed in place through the sliding rail 43 under the pushing of the hydraulic driving mechanism 42. The semi-finished cable does not need to change the die in the process of carrying out repeated drawing, and the plurality of drawing dies 41 can be simultaneously utilized to carry out multi-wheel diameter reduction on the cable in the single drawing process, so that the production efficiency is greatly improved.
Further, as shown in fig. 4, the endless chain type drawing machine 5 includes a synchronizing gear 51, an endless chain belt 52, a cable pressing block 53, and a tensioning device 54, wherein: the synchronizing gear 51 includes a front gear and a rear gear; the two ends of the annular chain belt 52 are respectively connected with the front gear and the rear gear; the cable press block 53 is disposed inside the endless chain belt 52, is fixed on the endless chain belt 52 by screws, and is uniformly arranged along the endless chain belt 52, and the tensioning device 54 is disposed outside the endless chain belt, and is composed of an eccentric wheel and a tensioning plate. The ring chain type drawing machine 5 is arranged in the middle of the drawing production line rack 3 and used for continuously drawing cables, multiple groups of synchronous gears 51, ring chain belts 52, cable pressing blocks 53 and tensioning devices 54 can be arranged according to practical conditions, the ring chain type drawing machine is used for fixing, compacting and drawing in a cable shuttle process, the tensioning devices 54 on two sides push the ring chain belts 52 and the cable pressing blocks 53 to approach each other and compact intermediate semi-finished cables through an eccentric shaft structure by utilizing two tensioning plates, and the synchronous gears 51 drive the ring chain belts 52 and the cable pressing blocks 53 to move forwards after the cable pressing blocks 53 clamp the cables, so that the drawing process of the cables is completed.
Further, as shown in fig. 5, a plurality of semicircular grooves are provided on the cable presser 53. The semicircular grooves on the two cable pressing blocks 53 are close to form circular through holes, and the circular through holes are respectively corresponding to the sizes of the semi-finished cables after different drawing dies 41 are used for fixing the semi-finished cables, so that the drawing of the cables is realized.
Further, the annular chain type drawing machine 5 can perform radial translation relative to the semi-finished cable, and a groove with a proper size on the cable pressing block 53 can be selected to tightly clamp the cable during drawing, so that the appearance of the cable is protected, and meanwhile, the friction force required by drawing is ensured to meet the requirement.
Further, the tension force of the electric receiving frame 7 is smaller than the drawing force of the endless chain drawing machine 5. The rotation of the electric material collecting rack 7 is only used for coiling the cable, and the tension force on the electric material collecting rack is far smaller than the force required during drawing, so that the cable structure is not damaged.
Specifically, the armored coaxial cable drawing production line for nuclear power in the embodiment of the application adopts the following steps to carry out cable production and preparation:
step 1: firstly, assembling raw materials of the armored coaxial cable for nuclear power, wherein the raw materials comprise stainless steel pipes, magnesium oxide porcelain columns and core wire copper columns;
step 2: inserting the assembled cable raw materials into a drawing production line, controlling a drawing die combination device 4 with the largest caliber size, reducing the cable to form a drawing cavity 44, moving a ring chain type drawing machine 5 to clamp the cable by a groove with the proper size on a cable pressing block 53, starting a driving device to carry out first drawing, and after the working procedures of straightening, reducing, drawing and polishing, coiling a semi-finished cable in an electric material collecting frame 7, and finally putting the semi-finished cable into a pit furnace 8 for annealing;
step 3: and (3) placing the annealed semi-finished cable on the feeding frame 1 again, and continuously repeating the drawing process of the step (2), wherein one or more drawing die combination devices 4 with smaller calibers are selected to form a drawing cavity 44 before each drawing, and the drawing is continuously performed, so that the cable is finally drawn to the length of the required outer diameter, and the drawing production of the armored coaxial cable for nuclear power is realized.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (7)
1. The utility model provides a production line is drawn to armoured coaxial cable for nuclear power, its characterized in that, including feeding frame, pre-straightener, drawing production line rack, electronic receipts work or material rest and the pit furnace that connect gradually, wherein:
the feeding frame is used for placing semi-finished cables;
the pre-straightening machine is arranged between the feeding frame and the drawing production line rack and is used for straightening a semi-finished cable;
the drawing production line bench is provided with a drawing die combination device, a ring chain type drawing machine and a polishing machine, and is used for reducing, continuously drawing and polishing the cable;
the electric material receiving rack is arranged at the rear end of the drawing production line rack and is used for rolling the drawn semi-finished cable;
the pit furnace is used for annealing semi-finished cables.
2. The armored coaxial cable drawing line for nuclear power of claim 1, wherein the pre-straightener comprises a horizontal straightener and a vertical straightener.
3. The armored coaxial cable drawing production line for nuclear power of claim 1, wherein the drawing die assembly comprises a plurality of drawing dies of different aperture sizes, each drawing die comprising a hydraulic drive mechanism, a slide rail and a drawing cavity.
4. The armored coaxial cable drawing production line for nuclear power of claim 1, wherein the endless chain type drawing machine comprises a synchronous gear, an endless chain belt, a cable briquetting and a tensioning device, wherein:
the synchronous gear comprises a front gear and a rear gear;
the two ends of the annular chain belt are respectively connected with the front gear and the rear gear;
the cable briquetting sets up the annular chain belt is inboard, through the fix with screw on the annular chain belt, and evenly arrange along the annular chain belt:
the tensioning device is arranged on the outer side of the annular chain belt and consists of an eccentric wheel and a tensioning plate.
5. The armored coaxial cable drawing line for nuclear power of claim 4, wherein the cable press block is provided with a plurality of semicircular grooves.
6. The armored coaxial cable drawing line for nuclear power of claim 5, wherein the endless chain type drawing machine is radially translatable relative to the semi-finished cable.
7. The armored coaxial cable drawing production line for nuclear power of claim 4, wherein the tension force of the electric take-up rack is less than the drawing force of the endless chain type drawing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320181106.0U CN219233534U (en) | 2023-01-27 | 2023-01-27 | Armored coaxial cable drawing production line for nuclear power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320181106.0U CN219233534U (en) | 2023-01-27 | 2023-01-27 | Armored coaxial cable drawing production line for nuclear power |
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| Publication Number | Publication Date |
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| CN219233534U true CN219233534U (en) | 2023-06-23 |
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| CN202320181106.0U Active CN219233534U (en) | 2023-01-27 | 2023-01-27 | Armored coaxial cable drawing production line for nuclear power |
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Inventor after: Liu Haifeng Inventor after: Ge Mengtuan Inventor after: Zeng Le Inventor after: Zhou Yulin Inventor after: Qin Zikai Inventor after: Cheng Hui Inventor after: Jiang Zhongxiang Inventor after: Chen Xianglei Inventor after: Sun Guangzhi Inventor after: Cheng Fangquan Inventor after: Dong Jincheng Inventor after: Wang Jingxin Inventor after: Xiao Wei Inventor after: Zhou Zhende Inventor after: Qiu Shunli Inventor after: Sun Huimin Inventor after: Pei Yu Inventor before: Qin Zikai Inventor before: Qiu Shunli Inventor before: Pei Yu Inventor before: Ge Mengtuan Inventor before: Zeng Le Inventor before: Cheng Hui Inventor before: Jiang Zhongxiang Inventor before: Chen Xianglei Inventor before: Sun Guangzhi Inventor before: Wang Jingxin Inventor before: Liu Haifeng Inventor before: Zhou Zhende Inventor before: Cheng Fangquan Inventor before: Sun Huimin Inventor before: Zhou Yulin Inventor before: Dong Jincheng Inventor before: Xiao Wei |