CN112509804A - Online insulating packaging device for secondary circuit lead of current transformer - Google Patents
Online insulating packaging device for secondary circuit lead of current transformer Download PDFInfo
- Publication number
- CN112509804A CN112509804A CN202011471328.3A CN202011471328A CN112509804A CN 112509804 A CN112509804 A CN 112509804A CN 202011471328 A CN202011471328 A CN 202011471328A CN 112509804 A CN112509804 A CN 112509804A
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- Prior art keywords
- encapsulating
- cavity
- shaft body
- secondary circuit
- circuit lead
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of lead maintenance equipment, and provides an online insulating encapsulating device for a secondary circuit lead of a current transformer, which comprises a controller, a material station and an encapsulating mechanism, wherein the encapsulating mechanism comprises a power unit and an encapsulating unit, the controller is electrically connected with the power unit, the power unit is arranged at the end part of the encapsulating mechanism, the encapsulating unit comprises an encapsulating shaft body, a through hole and a flow channel are arranged in the encapsulating shaft body, the inside of the through hole is axially divided into a sliding positioning cavity, a material injection row cavity and a plastic cavity, the flow channel is circumferentially and annularly arranged at the material injection row cavity and is communicated with a pipeline of the material station, a group of material injection nozzles are annularly arranged between the flow channel and the material injection row cavity in an array manner, the flow channel is communicated with the material injection row cavity by virtue of the. Through above-mentioned technical scheme, when having solved the change protective sheath among the prior art, need have a power failure, lead to the maintenance process loaded down with trivial details, can not guarantee the problem of maintaining the quality.
Description
Technical Field
The invention relates to the technical field of lead maintenance equipment, in particular to an online insulating packaging device for a secondary circuit lead of a current transformer.
Background
When the secondary circuit lead of the current transformer is used, a layer of polyvinyl chloride glass fiber hose woven by alkali-free glass fibers is sleeved on the outer surface of the secondary circuit lead, commonly called a yellow wax pipe, and the yellow wax pipe has good flexibility, elasticity and insulativity, so that the current transformer is suitable for insulation protection of the secondary circuit lead of the current transformer; however, after long-time use, due to strong irradiation of natural light and long-time contact of moisture and corrosive gas, the surfaces of the secondary circuit lead and the yellow wax tube are aged and even cracked and damaged, and the insulating property of the secondary circuit lead is affected.
The insulation reduction of a secondary circuit of the current transformer caused by moisture aging and the like is easy to cause protection actions, and the safety and stability of a power grid are affected. The conventional technical means are as follows: the application is cut off the power and is changed secondary winding terminal row, secondary lead-out wire yellow wax pipe, sealing washer, installs buckler etc. additional. However, after the work of disassembling the secondary lead wire in power failure and replacing the yellow wax pipe is implemented, a load test is required, so that the maintenance process is complicated, and the maintenance quality cannot be guaranteed. The terminal box space of the equipment is narrow and small, the network cables of the secondary loop are densely distributed, the problems in the prior art cannot be well solved, the difficulty is brought to the normal development of the work in the field, the contradiction between the overhaul and the operation and maintenance is caused, and the continuity and the reliability of power transmission are seriously influenced.
Disclosure of Invention
The invention provides an online insulating packaging device for a secondary circuit lead of a current transformer, and solves the problems that the maintenance process is complicated and the maintenance quality cannot be ensured due to power failure when a protective sleeve is replaced in the related technology.
The technical scheme of the invention is as follows: the online insulating encapsulating device for the secondary circuit lead of the current transformer comprises a controller, a material station and an encapsulating mechanism, wherein the material station is communicated with the encapsulating mechanism, the encapsulating mechanism comprises a power unit and an encapsulating unit, the controller is electrically connected with the power unit, the power unit is arranged at the end part of the encapsulating mechanism, the encapsulating unit comprises an encapsulating shaft body, a through hole and a flow channel are arranged in the encapsulating shaft body, the through hole is axially formed for the secondary circuit lead to pass through, the inner wall of the through hole is of a step-shaped structure, so that the inside of the through hole is axially divided into a sliding positioning cavity, a material injection row cavity and a plastic cavity, the diameter of the sliding positioning cavity is equal to the diameter of the secondary circuit lead, the inner diameter of the material injection row cavity is larger than that of the sliding positioning cavity, the inner diameter of the plastic cavity is slightly larger than that of the material injection row cavity, and the, the flow channel is communicated with the material station pipeline, a group of injection nozzles are arranged between the flow channel and the injection row cavity in an annular array mode, the flow channel is communicated with the injection row cavity by means of the injection nozzles, and outlets of the injection nozzles all point to the axis direction.
As a further technical scheme, in order to make the surface of the lead smooth, two shapers are annularly arranged on the inner wall of the shaping cavity along the circumferential direction, the plane where the shapers are located is parallel to the plane where the flow channel is located, and the inner diameter of each shaper is 0.5-1 mm smaller than the inner diameter of the shaping cavity.
As a further technical scheme, in order to convey a lead, the power source comprises a driver, rollers driven by a micro motor are arranged in the driver in pairs, the opposite roller surfaces of the rollers are arc-shaped concave surfaces, the equivalent diameter of each arc-shaped concave surface is smaller than the diameter of the corresponding sliding positioning cavity by 0.1-0.5 mm, and the rollers are made of nylon or polyphenylene sulfide.
As a further technical scheme, in order to realize bending of the device, the encapsulating shaft body and the driver are in flexible connection through a corrugated spring rubber piece or a copper bar, the rubber is fluororubber, polyurethane or ethylene propylene diene monomer, and the encapsulating shaft body and the driver are made of aluminum magnesium alloy.
As a further technical scheme, in order to observe the surface of the lead wire, a probe and a lighting lamp are arranged on the end face, close to the plastic cavity, of the packaging shaft body.
As a further technical scheme, in order to facilitate disassembly, the packaging shaft body is formed by buckling two half shaft bodies.
As a further technical solution, in order to prevent interference with other components, both the end surface of the packing shaft body close to the sliding positioning cavity and the end surface of the driver close to the packing shaft body are provided with chamfers. And a material inlet is arranged on the chamfer inclined plane on the encapsulating shaft body and communicated with the material station and the flow channel.
The outlet of the injection nozzle is arranged to be 30-45 degrees in the right-handed direction and forms an included angle of 15-30 degrees with the leaving direction of the encapsulating shaft body.
As a further technical scheme, in order to increase the friction force of the roller, the surface of the roller is provided with a reticular insection, and the thickness of the reticular insection is 10-100 μm.
The working principle of the invention is as follows: the encapsulating device comprises a controller, a material station and an encapsulating mechanism, wherein the material station is communicated with the encapsulating mechanism, and is used for conveying coating to the encapsulating mechanism from the material station, the encapsulating mechanism comprises a power unit and an encapsulating unit, the controller is electrically connected with the power unit, the power unit is used for controlling the opening and closing of the power of the device and is arranged at the end part of the encapsulating mechanism, the encapsulating mechanism is characterized in that the encapsulating unit comprises an encapsulating shaft body, a through hole and a flow channel are arranged in the encapsulating shaft body, the through hole is axially formed and is used for a secondary circuit lead to pass through, the inner wall of the through hole is of a step-shaped structure, the inner part of the through hole is axially divided into a sliding positioning cavity, a material injection row cavity and a plastic cavity, the inner diameter of the material injection row cavity is larger than that of the sliding positioning cavity, the inner diameter of the sliding positioning cavity is equal to, the runner is annularly arranged at the position of the material injection row cavity along the circumferential direction, the runner is communicated with a material station pipeline and used for providing coating, a group of material injection nozzles are arranged between the runner and the through hole in an annular array mode, the runner is communicated with the through hole by virtue of the material injection nozzles, outlets of the material injection nozzles point to the axis direction, the runner is arranged at the position of the material injection row cavity, the material injection is carried out on the just-contracted conducting wire by utilizing the characteristic that the inner diameter of the material injection row cavity is larger than that of the sliding positioning cavity, the coaxiality of the conducting wire and the axis is higher, so that the material injection effect is more uniform, the phenomenon of inconsistent material injection thickness is avoided, the power-off is not needed during use, and; the inner wall of the shaping cavity is annularly provided with two shaping devices along the circumferential direction, the plane where the shaping devices are located is parallel to the plane where the flow channel is located, and the shaping devices generate annular bulges on the inner wall of the shaping cavity for scraping the surface of a lead wire subjected to material injection work to ensure the smoothness of the surface of the lead wire; the power source comprises a driver, rollers driven by the micro motor are arranged in the driver in pairs, the opposite roller surfaces of the rollers are arc-shaped concave surfaces, a gap is formed between the arc-shaped concave surfaces for a secondary circuit lead to pass through, and meanwhile, the conveying function is realized by means of friction force between the arc-shaped concave surfaces; the packaging shaft body is in flexible connection with the driver through rubber or copper bars, so that the packaging shaft body can slide on the lead more conveniently and flexibly; the end face of the encapsulating shaft body, which is close to the material injection row cavity, is provided with a probe for observing the smoothness of the surface of the lead wire after the encapsulating work is finished; the packaging shaft body is formed by buckling two half shaft bodies, so that the packaging shaft body is more convenient and quicker to assemble and disassemble; the end face of the encapsulating shaft body close to the sliding positioning cavity and the end face of the driver close to the encapsulating shaft body are both provided with chamfers, so that the connecting part of the encapsulating shaft body and the driver is in smooth transition, and interference and jamming with other parts are prevented; the outlet of the injection nozzle 8 is arranged to be 30-45 degrees in the right-handed direction and forms an included angle of 15-30 degrees with the leaving direction of the packaging shaft body 3, so that the outlet of the injection nozzle 8 is in a necking shape, self-thrust can be formed when materials are extruded, and required traction power can be reduced when the packaging shaft body runs on a lead wire in a narrow space.
The invention has the beneficial effects that: the material is annotated to the wire that has just been tightened to the characteristics that the chamber internal diameter was greater than the sliding location chamber to the material of utilizing notes, and the wire is higher with the axiality in axle center for annotate that the material effect is more even, avoid appearing annotating the phenomenon that material thickness is inconsistent, need not the outage during use, only need with the lead wire pass seal mechanism slide can.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of a structure of an encapsulated shaft according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic end view of the actuator of the present invention;
in the figure:
1. the device comprises a controller, 2, a material station, 3, an encapsulating shaft body, 4, a flow channel, 5, a secondary loop lead wire, 6, a sliding positioning cavity, 7a, an injection material moving cavity, 8, an injection material channel, 9, a shaping device, 10, a driver, 11, a micro motor, 12, a roller, 13, a probe, 14, a chamfer, 15, a lighting lamp, 16 and a material inlet.
Detailed Description
The online insulating encapsulating device for the secondary circuit lead of the current transformer comprises a controller 1, a material station 2 and an encapsulating mechanism, wherein the material station 2 is communicated with the encapsulating mechanism, the encapsulating mechanism comprises a power unit and an encapsulating unit, the controller 1 is electrically connected with the power unit, the power unit is arranged at the end part of the encapsulating mechanism, the encapsulating unit comprises an encapsulating shaft body 3, a through hole and a flow channel 4 are arranged in the encapsulating shaft body 3, the through hole is axially formed and is used for the secondary circuit lead 5 to pass through, the inner wall of the through hole is of a step-shaped structure, so that the inside of the through hole is axially divided into a sliding positioning cavity 6 and a material injection row cavity 7a, the diameter of the sliding positioning cavity 6 is equal to that of the secondary circuit lead 5, the inner diameter of the material injection row cavity 7a is larger than that of the sliding positioning cavity 6, and the flow channel 4 is circumferentially and annularly arranged at, the runner 4 with 2 pipeline intercommunications in material station, runner 4 with annular array is provided with a set of notes material passageway 8 between the through-hole, runner 4 with the help of annotate material passageway 8 with the through-hole intercommunication, annotate the all directional axle center direction of material passageway 8 export.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1 to 3, the present embodiment provides an online insulating encapsulation device for a secondary circuit lead of a current transformer, including a controller 1, a material station 2, and an encapsulation mechanism, where the material station 2 is communicated with the encapsulation mechanism, the encapsulation mechanism includes a power unit and an encapsulation unit, the controller 1 is electrically connected with the power unit, the power unit is disposed at an end of the encapsulation mechanism, the encapsulation unit includes an encapsulation shaft 3, a through hole and a flow channel 4 are disposed in the encapsulation shaft 3, the through hole is axially formed for a secondary circuit lead 5 to pass through, an inner wall of the through hole is of a stepped structure, so that the through hole is axially divided into a sliding positioning cavity 6, a material injection row cavity 7a and a shaping cavity 7b, a diameter of the sliding positioning cavity 6 is equal to a diameter of the secondary circuit lead 5, and an inner diameter of the material injection row cavity 7a is greater than an inner diameter of the sliding positioning, the inner diameter of the plastic cavity 7b is slightly larger than that of the injection material row cavity 7a, the flow channel 4 is annularly arranged at the position of the injection material row cavity 7a along the circumferential direction, the flow channel 4 is communicated with the material station 2 through a pipeline, a group of injection nozzles 8 are arranged between the flow channel 4 and the injection material row cavity 7a in an annular array mode, the flow channel 4 is communicated with the injection material row cavity 7a through the injection nozzles 8, and outlets of the injection nozzles 8 all point to the axis direction.
In the embodiment, the encapsulating device comprises a controller 1, a material station 2 and an encapsulating mechanism, wherein the material station 2 is communicated with the encapsulating mechanism, coating is conveyed to the encapsulating mechanism from the material station 2, the encapsulating mechanism comprises a power unit and an encapsulating unit, the controller 1 is electrically connected with the power unit, the power unit is controlled to be opened and closed, and is arranged at the end part of the encapsulating mechanism, the encapsulating unit comprises an encapsulating shaft body 3, a through hole and a flow channel 4 are arranged in the encapsulating shaft body 3, the through hole is axially formed and is used for a secondary loop lead 5 to pass through, the inner wall of the through hole is of a step-shaped structure, so that the inner part of the through hole is axially divided into a sliding positioning cavity 6, an injection row cavity 7a and a shaping cavity 7b, the inner diameter of the injection row cavity 7a is larger than that of the sliding positioning cavity 6, the inner diameter of the sliding positioning cavity 6 is equal to that, the sliding positioning cavity 6 utilizes the diameter equal to the lead wire, play the effect of reducing to the lead wire, the runner 4 is located the row chamber 7a department of notes material along the circumference annular, runner 4 and 2 pipeline intercommunications in material station, for provide coating, the annular array is provided with a set of notes material nozzle 8 between runner 4 and the through-hole, runner 4 is with the help of annotating material nozzle 8 and through-hole intercommunication, the equal directional axle center direction in notes material nozzle 8 export, it sets up runner 4 to annotate the row chamber 7a department of material, utilize the row chamber 7a internal diameter of notes material to be greater than the characteristics in sliding positioning cavity 6, annotate the material to the wire that has just been reduced, the axiality of wire and axle center is higher, make and annotate the material effect more even, avoid annotating the inconsistent phenomenon of material thickness, need not cut off the power supply during the use, only need pass the lead.
As shown in fig. 1, further, it also includes,
two shapers 9 are annularly arranged on the inner wall of the plastic cavity 7b along the circumferential direction, the plane where the shapers 9 are located is parallel to the plane where the runner 4 is located, and the inner diameter of each shaper 9 is 0.5-1 mm smaller than that of the plastic cavity 7 b.
In this embodiment, the inner wall of the molding cavity 7b is annularly provided with two molding devices 9 along the circumferential direction, the plane where the molding devices 9 are located is parallel to the plane where the runner is located, the molding devices 9 generate annular protrusions on the inner wall of the molding cavity 7b for leveling the surface of the lead wire subjected to the injection work, so as to ensure the smoothness of the surface of the lead wire, the inner diameter of the molding devices 9 is smaller than the inner diameter of the molding cavity 7b by 0.5 mm-1 mm, and the leveling effect is better.
As shown in fig. 1 and 3, further, it also includes,
the power source comprises a driver 10, rollers 12 driven by a micro motor 11 are arranged in the driver 10 in pairs, the opposite roller surfaces of the rollers 12 are arc-shaped concave surfaces, the equivalent diameter of each arc-shaped concave surface is smaller than the diameter of the sliding positioning cavity 6 by 0.1-0.5 mm, and the rollers 12 are made of nylon or polyphenylene sulfide.
In this embodiment, the power supply includes driver 10, and driver 10 is inside to be provided with in pairs by micro motor 11 driven running roller 12, and the counter roll face of running roller 12 is the arc concave surface, forms the gap between the arc concave surface, supplies secondary circuit lead wire 5 to pass, realizes the transport function with the help of frictional force between the two simultaneously, and running roller 12 material is nylon or polyphenylene sulfide, has satisfied the insulating requirement of device, has good wearability simultaneously, improves the device life-span.
As shown in fig. 1, further, it also includes,
the encapsulating shaft body 3 and the driver 10 are in flexible connection through a wave spring rubber piece or a copper bar, the rubber is fluororubber, polyurethane or ethylene propylene diene monomer, and the encapsulating shaft body 3 and the driver 10 are made of aluminum magnesium alloy.
In this embodiment, the encapsulating shaft body 3 and the driver 10 are in flexible connection through a wave spring rubber piece or a copper bar, and rubber is fluororubber, polyurethane or ethylene propylene diene monomer rubber, so that the encapsulating shaft body 3 can slide on a lead more conveniently and flexibly, the encapsulating shaft body 3 and the driver 10 are made of aluminum-magnesium alloy, and the encapsulating shaft body and the driver are good in wear resistance and strength, and the service life of the device is prolonged.
As shown in fig. 1, further, it also includes,
and a probe 13 and an illuminating lamp 15 are arranged on the end surface of the packing shaft body 3 close to the plastic cavity 7 b.
In this embodiment, the end surface of the encapsulating shaft body 3 close to the plastic cavity 7b is provided with a probe 13 and an illuminating lamp 15 for observing the smoothness of the surface of the lead wire after the encapsulating operation is completed, and the illuminating lamp is an LED lamp.
As shown in fig. 1, further, it also includes,
the wrapping shaft body 3 is formed by buckling two half shaft bodies.
In this embodiment, it comprises two halves axis body lock to seal axis body 3, and is convenient and fast more when the installation is dismantled.
As shown in fig. 1, further, it also includes,
the end face of the enveloping shaft 3 close to the sliding positioning cavity 6 and the end face of the driver 10 close to the enveloping shaft 3 are both provided with a chamfer 14. A material inlet 16 is arranged on the chamfer inclined plane on the encapsulating shaft body 3, and the material inlet is communicated with the material station 2 and the flow channel 4.
In this embodiment, the terminal surface that encapsulates the axis body 3 and be close to the slide positioning chamber 6 and the terminal surface that driver 10 is close to encapsulating the axis body 3 all are equipped with chamfer 14 for connecting portion smooth transition between them prevents to appear blocking with the interference of other parts, is equipped with material import 16 on the chamfer inclined plane on encapsulating the axis body 3, and material import intercommunication material station 2 and runner 4 are used for the transported substance material.
As shown in fig. 2, further, it also includes,
the outlet of the injection nozzle (8) is arranged to be 30-45 degrees in the right-handed direction and forms an included angle of 15-30 degrees with the leaving direction of the encapsulating shaft body (3).
In the embodiment, the outlet of the injection nozzle 8 is arranged to be in a right-handed direction of 30-45 degrees and forms an included angle of 15-30 degrees with the leaving direction of the encapsulating shaft body 3, so that the outlet of the injection nozzle 8 is in a necking shape, self-thrust can be formed when materials are extruded, and required traction power can be reduced when the encapsulating shaft body runs on a lead wire in a narrow space.
As shown in fig. 3, further, it also includes,
the surface of the roller 12 is provided with a reticular insection, and the thickness of the reticular insection is 10-100 mu m.
In this embodiment, the surface of the roller 12 is provided with a mesh insection for increasing the friction of the roller 12, and the thickness of the mesh insection is 10 μm to 100 μm, so as to further improve the friction effect.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The online insulating encapsulating device for the secondary circuit lead of the current transformer comprises a controller (1), a material station (2) and an encapsulating mechanism, wherein the material station (2) is communicated with the encapsulating mechanism, the encapsulating mechanism comprises a power unit and an encapsulating unit, the controller (1) is electrically connected with the power unit, the power unit is arranged at the end part of the encapsulating mechanism, the online insulating encapsulating device is characterized in that the encapsulating unit comprises an encapsulating shaft body (3), a through hole and a flow channel (4) are arranged in the encapsulating shaft body (3), the through hole is axially formed for the secondary circuit lead (5) to pass through, the inner wall of the through hole is of a stepped structure, the inside of the through hole is axially divided into a sliding positioning cavity (6), an injection traveling cavity (7a) and a plastic cavity (7b), and the diameter of the sliding positioning cavity (6) is equal to that of the secondary circuit lead (5), the inner diameter of the material injection row cavity (7a) is larger than that of the sliding positioning cavity (6), the inner diameter of the plastic cavity (7b) is slightly larger than that of the material injection row cavity (7a), the flow channel (4) is annularly arranged at the position of the material injection row cavity (7a) along the circumferential direction, the flow channel (4) is communicated with a pipeline of the material station (2), a group of material injection nozzles (8) are arranged between the flow channel (4) and the material injection row cavity (7a) in an annular array mode, the flow channel (4) is communicated with the material injection row cavity (7a) through the material injection nozzles (8), and outlets of the material injection nozzles (8) are all directed to the axis direction.
2. The current transformer secondary circuit lead on-line insulation packaging device according to claim 1, wherein two shapers (9) are annularly arranged on the inner wall of the plastic cavity (7b) along the circumferential direction, the plane of the shapers (9) is parallel to the plane of the flow channel (4), and the inner diameter of each shaper (9) is 0.5 mm-1 mm smaller than the inner diameter of the plastic cavity (7 b).
3. The current transformer secondary circuit lead wire online insulation packaging device according to claim 1, wherein the power source comprises a driver (10), rollers (12) driven by a micro motor (11) are arranged in the driver (10) in pairs, the roller surfaces of the rollers (12) are arc-shaped concave surfaces, the equivalent diameter of the arc-shaped concave surfaces is 0.1-0.5 mm smaller than the diameter of the sliding positioning cavity (6), and the rollers (12) are made of nylon or polyphenylene sulfide.
4. The current transformer secondary circuit lead on-line insulation packaging device according to claim 3, wherein the packaging shaft body (3) and the driver (10) are in flexible connection by adopting a wave spring rubber piece or a copper bar, the rubber is fluororubber, polyurethane or ethylene propylene diene monomer, and the packaging shaft body (3) and the driver (10) are made of aluminum magnesium alloy.
5. The current transformer secondary circuit lead wire online insulation packaging device according to claim 1, characterized in that a probe (13) and a lighting lamp (15) are arranged on the end surface of the packaging shaft body (3) close to the plastic cavity (7 b).
6. The current transformer secondary circuit lead wire online insulation packaging device according to claim 1, wherein the packaging shaft body (3) is formed by buckling two half shaft bodies.
7. The current transformer secondary circuit lead on-line insulation packaging device according to claim 1, characterized in that the end surface of the packaging shaft body (3) close to the sliding positioning cavity (6) and the end surface of the driver (10) close to the packaging shaft body (3) are provided with chamfers (14). And a material inlet (16) is formed in the chamfer inclined plane on the encapsulating shaft body (3), and the material inlet is communicated with the material station (2) and the flow channel (4).
8. The current transformer secondary circuit lead wire online insulation packaging device according to claim 1, wherein an outlet of the injection nozzle (8) is arranged at an angle of 30-45 degrees in a right-hand direction, and forms an included angle of 15-30 degrees with a leaving direction of the packaging shaft body (3).
9. The on-line insulation packaging device for the secondary circuit lead of the current transformer as claimed in claim 1, wherein a mesh insection is arranged on the surface of the roller (12), and the thickness of the mesh insection is 10 μm-100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471328.3A CN112509804A (en) | 2020-12-15 | 2020-12-15 | Online insulating packaging device for secondary circuit lead of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471328.3A CN112509804A (en) | 2020-12-15 | 2020-12-15 | Online insulating packaging device for secondary circuit lead of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112509804A true CN112509804A (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011471328.3A Pending CN112509804A (en) | 2020-12-15 | 2020-12-15 | Online insulating packaging device for secondary circuit lead of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112509804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038682A (en) * | 2022-01-10 | 2022-02-11 | 杭州正华电子科技有限公司 | Automatic packaging secondary lead equipment and process for miniature current transformer for instrument |
-
2020
- 2020-12-15 CN CN202011471328.3A patent/CN112509804A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038682A (en) * | 2022-01-10 | 2022-02-11 | 杭州正华电子科技有限公司 | Automatic packaging secondary lead equipment and process for miniature current transformer for instrument |
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