CN113506660A - Integrated pre-twisted tensioning insulator and production process thereof - Google Patents
Integrated pre-twisted tensioning insulator and production process thereof Download PDFInfo
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- CN113506660A CN113506660A CN202110832240.8A CN202110832240A CN113506660A CN 113506660 A CN113506660 A CN 113506660A CN 202110832240 A CN202110832240 A CN 202110832240A CN 113506660 A CN113506660 A CN 113506660A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
The invention relates to an integrated pre-twisted tensioning insulator and a production process thereof, wherein the integrated pre-twisted tensioning insulator comprises the following steps: an insulator body; further comprising: the number of the heart rings is two, and the two heart rings are arranged in the insulator body; the preformed armor rods are sleeved outside the chicken heart ring; wherein, two mutual locks of heart ring, the preformed armor rod stretches out to insulator body both ends by the heart ring, and mechanical strength is high, and simple structure can bare-handedly through twine the preformed armor rod on the wire taut fixed wire, and the construction is overhauld the simple installation, labour saving and time saving, economical and practical, production efficiency is high.
Description
Technical Field
The invention relates to the technical field of distribution line pole guy wire accessories, in particular to an integrated pre-twisted tensioning insulator and a production process thereof.
Background
In distribution lines, the pole guy must be provided with a tensioning insulator of the same voltage class as the line. The tension insulator is arranged to prevent personal safety accidents caused by electrification of the stay wire due to the fact that the stay wire is short-circuited by iron wires or other conductive objects and the like under the unexpected conditions that the lead wire is broken off and falls off and is connected with the stay wire. The traditional steel strand is connected with the tensioning insulator through the NX wedge-shaped strain clamp, the traditional steel strand is connected with the tensioning insulator after being fixed through the NX wedge-shaped strain clamp, the steel strand is difficult to bend and put into an NX clamp groove due to high hardness and high rigidity of the steel strand, construction needs to be carried out by means of a special tool, and the technical level of constructors is tested.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an integrated pre-twisted tensioning insulator and a production process thereof so as to solve the technical problems.
The technical scheme of the invention is realized as follows: an integral pre-twisted tensioning insulator comprising:
an insulator body;
further comprising:
the number of the heart rings is two, and the two heart rings are arranged in the insulator body;
the preformed armor rods are sleeved outside the chicken heart ring;
the two heart rings are buckled with each other, and the preformed armor rods extend out of the two ends of the insulator body from the heart rings.
Through adopting above-mentioned technical scheme, two heart rings each other are buckled and are set up at the insulator originally internally, and the preformed armor rods is also fixed at the insulator originally internally simultaneously, and heart ring, preformed armor rods and insulator body integrated into one piece have improved the mechanical strength of insulator body, and simple structure can bare-handedly pass through with the preformed armor rods winding taut fixed wire on the wire simultaneously, and the construction is overhauld simple installation, labour saving and time saving, economical and practical.
The invention is further configured to: one side of the chicken heart ring is provided with an arc groove for sleeving the preformed armor rods outside the chicken heart ring, and the other side of the chicken heart ring is provided with a buckling surface.
Through adopting above-mentioned technical scheme, the preformed armor rods cover in the circular arc groove, can play fixed spacing effect, has promoted firmness and mechanical strength of preformed armor rods dress in this internal insulator simultaneously.
The invention is further configured to: the distance between the buckling surfaces of the two buckling chicken heart rings is 15-20 mm.
Through adopting above-mentioned technical scheme, filled the insulator body between this interval, consequently guaranteed insulating properties, prevent that the contact between the heart ring from leading to the fact electrically conductive, intensity is high and have high life simultaneously.
The invention is further configured to: the insulator body is formed by injection molding of reinforced nylon engineering plastics, and the outer side of the insulator body is wrapped with a protective sleeve.
Through adopting above-mentioned technical scheme, the insulator body is placed heart ring and preformed armor rod integrated into one piece in its fashioned mould at the forming process, has guaranteed its mechanical strength, and installation simple process, and the lag is the silicon rubber material, can improve the resistant dirty performance of insulator body, hydrophobic performance, voltage resistance, insulating properties and life.
A production process of an integrated pre-twisted tensioning insulator comprises the following steps:
s1, adopting ZL101A material to perform low-pressure casting forming to form a chicken heart ring;
s2, placing the chicken heart ring into a heat treatment furnace, heating to 520 ℃ within 3.5h, preserving heat for 5h, taking out the product, and rapidly placing the product into a water pool at 80 ℃ within 15S for water-cooling and soaking for 6 min;
s3, placing the chicken heart ring into an aging furnace, heating the aging furnace to 170 ℃, and preserving heat for 4 hours to form a finished product;
s4, pre-twisted wire forming is sleeved into the heart rings to form a whole, and the two heart rings are placed into an insulator forming die of an injection molding machine;
s5, adding reinforced nylon engineering plastic particles into a charging barrel of an injection molding machine, preheating the particles, injecting the preheated particles into a heat-insulating barrel, outputting the heat-insulating barrel into the injection molding machine, and performing injection molding on the insulator body;
and S6, injection molding or sleeving a protective sleeve on the cooled insulator body.
By adopting the technical scheme, the quenching treatment is carried out through the step S2 after the chicken heart ring is cast and formed, the hardness value of the chicken heart ring can be improved, the Brinell hardness HB of the chicken heart ring reaches 100 through the aging treatment, the tensile strength reaches 310Mpa, the working efficiency of the injection molding machine can be improved through the preheating step before the injection molding of the injection molding machine, the working time is shortened, the preheated material is introduced into a heat-insulating cylinder for heat-insulating storage, the material can be better used when in need, the preheated material can be used for standby, the reinforced nylon engineering plastic material adopts PA66G50, two groups of preformed armor rods are respectively sleeved into the chicken heart ring after being formed to be combined into a whole, the protective sleeve is arranged on the surface of the insulator body in an injection molding mode, so that the firmness of the protective sleeve can be improved, and the protective sleeve can be prevented from falling off; if the protective sleeve is sleeved on the surface of the insulator body in a sleeving manner, the silicone rubber with the thickness of 1mm is sleeved on the surface of the plastic insulator, and the plastic insulator is precisely coated on the surface of the plastic insulator through expansion with heat and contraction with cold at the high temperature of 100 ℃ and 150 ℃.
The invention is further configured to: in the step S5, a preheating device is arranged between the charging barrel and the heat-insulating barrel, the preheating device is used for extracting and preheating materials in the charging barrel and pumping the materials into the heat-insulating barrel, the heat-insulating barrel is used for insulating the reinforced nylon engineering plastics, and the materials are introduced into the injection molding machine when the injection molding machine is in operation.
Through adopting above-mentioned technical scheme, preheating device preheats through preheating device with the material pump of feed cylinder, makes it soften, then carries and store in the heat preservation section of thick bamboo, and the material in the heat preservation section of thick bamboo facilitates the use, reduces the time that the later stage was moulded plastics, improves production efficiency.
The invention is further configured to: the preheating device includes a preheating channel, the preheating channel includes:
a first channel, the first channel comprising,
a first feed delivery pipe;
a second delivery pipe;
the first conveying pipe and the second conveying pipe are respectively arranged on two sides of the first conversion piece;
the feed inlet of first conveying pipeline and the top interconnect of feed cylinder, the discharge gate of second conveying pipeline and the lateral wall upper end interconnect of first conversion piece, second conveying pipeline feed inlet and first conversion piece lateral wall lower extreme interconnect, the second conveying pipeline is by the vertical upwards extension formation A section of feed inlet, the level of A section is higher than the level of first conversion piece, the one end that this feed inlet was kept away from to the A section is to the horizontal extension formation B section of first conversion piece orientation, the vertical downwardly extending of one end that the B section deviates from the A section just runs through to the bottom downwards by the top of first conversion piece and wears out and form the C section, the C section forms the discharge gate, is equipped with the driving pump on this discharge gate.
By adopting the technical scheme, the material in the material cylinder is pumped out under the action of the driving pump, enters the first conversion part through the first material conveying pipe, then passes through the second material conveying pipe through the first conversion part, then enters the second channel, the amount on the path can be reduced through the preheating channel, the preheating is more uniform, the preheating efficiency is improved, the traditional cylindrical preheating mode is replaced, the preheating time is further shortened, the safety is improved, meanwhile, the structure can reduce the blocking condition in the material conveying process, the heat flow enters the first conversion part from the first material conveying pipe, the heat flow is full of the first conversion part, the material can pass through the first conversion part again when entering the second material conveying pipe through the first conversion part and passes through the C section, and the heat flow in the C section can be further preheated by matching with the heat flow in the first conversion part, so that the preheating is more sufficient.
The invention is further configured to: the preheating channel further comprises:
a second channel comprising:
a third delivery pipe;
a fourth feed delivery pipe;
the third material conveying pipe and the fourth material conveying pipe are respectively arranged on two sides of the second conversion piece;
one end of the third conveying pipeline is connected with the driving pump, the other end of the third conveying pipeline vertically extends upwards to penetrate out of the top of the second conversion part from the bottom of the second conversion part to form a D section, one end of the D section, close to the second conversion part, transversely extends outwards to form an E section, one end of the E section, which deviates from the D section, vertically extends downwards and is connected with the lower portion of the side wall of the second conversion part, a feeding hole of the fourth conveying pipeline is connected with the upper portion of the side wall of the second conversion part, and a discharging hole of the fourth conveying pipeline is connected with the top of the heat preservation cylinder.
Through adopting above-mentioned technical scheme, through increasing the second passageway, can increase the distance of preheating for the material can be in preheating the abundant heating in the passageway, and its efficiency of preheating of improvement that this structure can be further reduces the time of preheating, preheats more abundant, all is equipped with the insulation material layer in first passageway and the second passageway.
The invention is further configured to: preheating device still includes heating device, heating device passes through the lateral wall interconnect of first connecting pipe and first conveying pipeline, be equipped with clarifier and second connecting pipe on the first connecting pipe, the second connecting pipe is located the export direction of clarifier, the other end and the third conveying pipeline of second connecting pipe communicate each other, heating device is heat current generater.
Through adopting above-mentioned technical scheme, heating device is the conventional equipment that can produce steam, and the hot stream that heating device produced is through the filtration purification of clarifier, then carries first passageway and second passageway respectively in, can prevent the problem of tail-end heat loss, has improved the efficiency of preheating, because setting up of clarifier has improved the cleanliness factor of material when preheating simultaneously, prevents that product property from receiving the influence, has improved the quality of product.
The invention is further configured to: the purifier includes:
a housing;
a brake section;
the braking part and the air purifying part are arranged in the shell and are arranged adjacent to each other;
the brake part comprises a first brake cavity and a second brake cavity which are communicated with each other, a first brake block is arranged in the first brake cavity, a second brake block is arranged in the second brake cavity, a first flow channel and a second flow channel are respectively arranged at the upper end and the lower end of the first brake cavity, a first check piece is arranged in the first flow channel, a second check piece is arranged in the second flow channel, one end of the second flow channel, which is far away from the first brake cavity, is communicated with a first conveying pipe, one end of the first flow channel, which is far away from the first brake cavity, is communicated with the air purification part, a third flow channel and a fourth flow channel are respectively arranged on one side, which faces the air purification part, of the second brake cavity, and a third check piece and a fourth check piece are respectively arranged in the third flow channel and the fourth flow channel; the clean gas portion includes flow chamber and recoil chamber, the recoil chamber sets up the outside in flow chamber, the flow intracavity is equipped with the flow control piece, the flow control piece is used for adjusting the flow of flow intracavity, be equipped with the filter screen between flow chamber and the recoil chamber, the filter screen sets up the outside at the flow control piece, the filter screen up-and-down motion can be followed to the flow control piece, the flow chamber includes first air inlet, first gas outlet and second gas outlet, the one end and the first conveying pipeline intercommunication of first air inlet, first gas outlet and first flow channel intercommunication, second gas outlet and third flow channel intercommunication.
By adopting the technical scheme, heat flow generated by the heating device is filtered and purified by the air purifying part under the action of the braking part, flows into the first channel from the first connecting pipe through the braking part and can enter the second channel along the second connecting pipe; preheating the preheating channel, pumping out the material after the preheating of the preheating channel is finished, operating the heating device to generate heat flow, operating the brake part at the moment, reciprocating the first brake block along the first brake cavity under the condition of not contacting the second brake block to form brake air suction in the first brake cavity, sealing the contact part of the first brake cavity and the second brake cavity by the second brake block, and at the moment, passing the heat flow through the first air inlet, the filter screen and the flow cavity, then entering the first flow channel from the first air outlet and being pressed out to the second flow channel under the action of the first brake block; because the more impurities filtered by the filter screen, the more the impurities are accumulated, the flow can be influenced, the flow regulating block can continuously move downwards, so that the flow can be constant, when the more impurities in the flow regulating block reach the limit, the back flushing cleaning is needed, at the moment, the first brake block moves towards the second brake block in a reciprocating way under the working condition of sealing the first flow channel, at the moment, the first brake cavity is vacuum-sealed, the second brake cavity is formed for brake air exhaust, the impurities on the filter screen are blown off by heat flow, the heat flow is discharged from the second air outlet and enters the second brake cavity through the third flow channel, and the impurities are discharged from the fourth flow channel under the action of the second brake block, the structure can efficiently purify the gas, the filter screen can be cleaned by the structure, the use efficiency is high, the convenience is realized, the back flow of the gas can be prevented by arranging the non-return piece, meanwhile, the pressure relief pipe and the pressure relief valve are arranged on the outer side of the heat insulation cylinder, when the air flow and the pressure in the heat insulation cylinder are too much, the pressure relief and the exhaust can be realized in time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art structure of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an insulator according to an embodiment of the present invention;
FIG. 3 is a schematic view of a heart ring buckle structure according to an embodiment of the present invention;
FIG. 4 is a side view of a heart ring in accordance with an embodiment of the present invention;
FIG. 5 is a top view of a heart ring assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a preheating apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic view of a purifier according to an embodiment of the present invention.
Reference numerals: 1. an insulator body; 100. a protective sleeve; 2. a chicken heart ring; 200. an arc groove; 201. buckling surfaces; 3. pre-stranding; 4. a charging barrel; 5. a heat-preserving cylinder; 6. a preheating channel; 600. a first channel; 6001. a first feed delivery pipe; 6002. a second delivery pipe; 6003. a first conversion member; 6004. a section A; 6005. a section B; 6006. c, section; 601. driving the pump; 602. a second channel; 6021. a third delivery pipe; 6022. a fourth feed delivery pipe; 6023. a second conversion member; 6024. a stage D; 6025. e, section; 7. a heating device; 8. a purifier; 800. a housing; 801. a brake section; 8011. a first brake chamber; 8012. a second brake chamber; 8013. a first brake pad; 8014. a first flow passage; 8015. a second flow passage; 8016. a first check member; 8017. a second check; 8018. a second brake pad; 8019. a third flow path; 8020. a fourth flow path; 80200. a third check; 80201. a fourth check; 802. a gas purifying part; 8021. a flow chamber; 8022. a flow regulating block; 8023. filtering with a screen; 8024. a first air inlet; 8025. a first air outlet; 8026. a second air outlet; 9. a first connecting pipe; 10. a second connecting pipe; 11. and (4) releasing the valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2 to 7, the present invention discloses an integrated pre-twisted tensioning insulator, comprising: an insulator body 1; further comprising: the number of the heart rings 2 is two, and the two heart rings 2 are arranged in the insulator body 1; the preformed armor rods 3 are sleeved outside the chicken heart ring 2; the two heart-shaped rings 2 are buckled with each other, and the preformed armor rods 3 extend out of the two ends of the insulator body 1 from the heart-shaped rings 2. Two mutual locks of heart ring 2 and setting in insulator body 1, preformed armor rods 3 also fix in insulator body 1 simultaneously, and heart ring 2, preformed armor rods 3 have improved insulator body 1's mechanical strength with 1 integrated into one piece of insulator body, and simple structure can bare-handedly pass through with preformed armor rods 3 winding taut fixed wire on the wire simultaneously, and the construction is overhauld the simple installation, labour saving and time saving, economical and practical.
One side of the chicken heart ring 2 is provided with an arc groove 200 for the preformed armor rods 3 to be sleeved outside, and the other side is provided with a buckling surface 201. The preformed armor rods 3 are sleeved in the arc grooves 200, so that the fixing and limiting effects can be achieved, and the firmness and mechanical strength of the preformed armor rods 3 arranged in the insulator body 1 are improved.
The distance between the buckling surfaces 201 of the two buckling heart rings 2 is 15-20 mm. Having filled insulator body 1 between this interval, consequently having guaranteed insulating properties, preventing that the contact from leading to the fact between the heart ring 2 is electrically conductive, and intensity is high and have high life simultaneously, specifically can set up to 15mm, can not influence intensity and insulating nature.
The insulator body 1 is formed by injection molding of reinforced nylon engineering plastics, and the outer side of the insulator body 1 is coated with a protective sleeve 100. The heart ring 2 and the preformed armor rods 3 are placed in a forming die of the insulator body 1 in the forming process to be integrally formed, the mechanical strength of the insulator body is guaranteed, the installation process is simple, the protective sleeve 100 is made of silicon rubber materials, and the pollution resistance, the hydrophobicity, the pressure resistance, the insulation performance and the service life of the insulator body 1 can be improved.
A production process of an integrated pre-twisted tensioning insulator comprises the following steps:
s1, adopting ZL101A material to perform low-pressure casting forming to form a chicken heart ring 2;
s2, placing the chicken heart ring 2 into a heat treatment furnace, heating to 520 ℃ within 3.5h, preserving heat for 5h, taking out the product, and rapidly placing the product into a water pool at 80 ℃ within 15S for water-cooling and soaking for 6 min;
s3, placing the chicken heart ring into an aging furnace, heating the aging furnace to 170 ℃, and preserving heat for 4 hours to form a finished product;
s4, forming a preformed armor rod 3, sleeving the preformed armor rod 3 into the heart rings 2 to form a whole, and placing the two heart rings 2 into an insulator forming die of an injection molding machine;
s5, adding reinforced nylon engineering plastic particles into a charging barrel 4 of an injection molding machine, preheating the particles, injecting the preheated particles into a heat-insulating barrel 5, outputting the heat-insulating barrel 5 into the injection molding machine, and performing injection molding on the insulator body 1;
and S6, injecting plastic or sleeving a protective sleeve 100 on the cooled insulator body 1.
After the chicken heart ring 2 is cast and formed, the quenching treatment is carried out through the step S2, the hardness value of the chicken heart ring 2 can be improved, the Brinell hardness HB of the chicken heart ring 2 can reach 100 through the aging treatment, the tensile strength can reach 310Mpa, the working efficiency of the injection molding machine can be improved through the preheating step before the injection molding of the injection molding machine, the working time is shortened, the preheated material is introduced into the heat-insulating cylinder 5 for heat-insulating storage and can be better used when needed, the preheated material can be used for standby application, the reinforced nylon engineering plastic material adopts PA66G50, two groups of preformed armor rods 3 are respectively sleeved into the chicken heart ring 2 after being formed and are combined into a whole, the protective sleeve 100 is arranged on the surface of the insulator body 1 in an injection molding mode, so that firmness of the protective sleeve can be improved, and the protective sleeve can be prevented from falling off; if the protective sleeve 100 is sleeved on the surface of the insulator body 1 in a sleeving manner, silicone rubber with the thickness of 1mm is sleeved on the surface of the plastic insulator, and the plastic insulator is precisely coated on the surface of the plastic insulator by expanding with heat and contracting with cold at the high temperature of 100 and 150 ℃.
In step S5, a preheating device is disposed between the material barrel 4 and the heat-insulating barrel 5, the preheating device is used for extracting and preheating the material in the material barrel 4 and pumping the material into the heat-insulating barrel 5, the heat-insulating barrel 5 is used for insulating the reinforced nylon engineering plastic, and the material is introduced into the injection molding machine when the injection molding machine is in operation. The preheating device pumps the materials in the charging barrel 4 out and preheats the materials through the preheating device to soften the materials, then the materials are conveyed to the heat-insulating barrel 5 to be stored, the materials in the heat-insulating barrel 5 are convenient to use, the later injection molding time is shortened, and the production efficiency is improved.
The preheating device comprises a preheating channel 6, wherein the preheating channel 6 comprises: a first channel 600, the first channel 600 comprising: a first delivery pipe 6001; a second delivery pipe 6002; a first transition member 6003, wherein the first material conveying pipe 6001 and the second material conveying pipe 6002 are respectively arranged on both sides of the first transition member 6003; wherein, the feed inlet of first conveying pipeline 6001 and the top interconnect of feed cylinder 4, the discharge gate of second conveying pipeline 6002 and the lateral wall upper end interconnect of first conversion piece 6003, second conveying pipeline 6002 feed inlet and first conversion piece 6003 lateral wall lower extreme interconnect, second conveying pipeline 6002 is by the vertical upwards extension formation A section 6004 of feed inlet, the level of A section 6004 is higher than the level of first conversion piece 6003, the one end that this feed inlet was kept away from to A section 6004 transversely extends to first conversion piece 6003 direction and forms B section 6005, B section 6005 deviates from the vertical downwardly extending of one end of A section 6004 and runs through to the bottom downwards and wear out to form C section 6006 by the top of first conversion piece 6003, C section 6006 forms the discharge gate, is equipped with driving pump 601 on this discharge gate. The material in the material cylinder 4 is pumped out under the action of the driving pump 601, enters the first conversion member 6003 through the first material conveying pipe 6001, then passes through the second material conveying pipe 6002 through the first conversion member 6003, and then enters the second passage 602, the amount of the material on the path can be reduced through the preheating passage 6, so that the preheating is more uniform, the preheating efficiency is improved, the traditional cylindrical preheating mode is replaced, the preheating time is further shortened, the safety is improved, meanwhile, the structure can reduce the blocking condition in the material conveying process, the heat flow enters the first conversion member 6003 from the first material conveying pipe 6001, the heat flow is full of the first conversion member 6003, the material enters the second material conveying pipe 6002 through the first conversion member 6003 and can pass through the first conversion member 6003 again when passing through the section C6006, the heat flow in the section C6006 can be matched with the heat flow in the first conversion member 6003 for further preheating, so that the preheating is more sufficient.
The preheating channel 6 further comprises: a second channel 602, wherein the second channel 602 comprises a third material delivery pipe 6021; a fourth material delivery pipe 6022; a second conversion part 6023, wherein the third material delivery pipe 6021 and the fourth material delivery pipe 6022 are respectively arranged at two sides of the second conversion part 6023; one end of the third material conveying pipe 6021 is connected with the driving pump 601, the other end extends vertically upwards to penetrate the top part from the bottom part of the second conversion part 6023 to form a D section 6024, one end of the D section 6024 close to the second conversion part 6023 extends outwards and transversely to form an E section 6025, one end of the E section 6025, which is far away from the D section 6024, extends vertically downwards and is connected with the lower part of the side wall of the second conversion part 6023, the feeding hole of the fourth material conveying pipe 6022 is connected with the upper part of the side wall of the second conversion part 6023, and the discharging hole of the fourth material conveying pipe 6022 is connected with the top part of the heat preservation cylinder 5. Through increasing second passageway 602, can increase the route of preheating for the material can be in preheating passageway 6 abundant heating, and its efficiency of preheating of improvement that this structure can be further reduces the time of preheating, preheats more abundant, all is equipped with the insulation material layer in first passageway 600 and the second passageway 602.
Preheating device still includes heating device 7, heating device 7 is through the lateral wall interconnect of first connecting pipe 9 with first conveying pipeline 6001, be equipped with clarifier 8 and second connecting pipe 10 on the first connecting pipe 9, second connecting pipe 10 is located the export direction of clarifier 8, the other end and the third conveying pipeline 6021 of second connecting pipe 10 communicate each other, heating device 7 is the heat current generator. Heating device 7 is conventional equipment that can produce steam, and the hot flow that heating device 7 produced is through the filtration purification of clarifier 8, then carries first passageway 600 and second passageway 602 respectively in, can prevent the problem of tail-end heat loss, has improved the efficiency of preheating, simultaneously because the setting up of clarifier 8 has improved the cleanliness factor of material when preheating, prevents that product property from receiving the influence, has improved the quality of product.
The purifier 8 includes: a housing 800; a brake section 801; the brake part 801 and the air purifying part 802 are both arranged in the shell 800, and the brake part 801 and the air purifying part 802 are arranged adjacently; the braking portion 801 comprises a first braking cavity 8011 and a second braking cavity 8012 which are communicated with each other, a first braking block 8013 is arranged in the first braking cavity 8011, a second braking block 8018 is arranged in the second braking cavity 8012, a first flow channel 8014 and a second flow channel 8015 are respectively arranged at the upper end and the lower end of the first braking cavity 8011, a first check piece 8016 is arranged in the first flow channel 8014, a second check piece 8017 is arranged in the second flow channel 8015, one end of the second flow channel 8015, which is far away from the first braking cavity 8011, is communicated with a first conveying pipe 6001, one end of the first flow channel 8014, which is far away from the first braking cavity 8011, is communicated with a clean air portion 802, a third flow channel 8019 and a fourth flow channel 8020 are respectively arranged on one side, which faces the clean air portion 802, of the second braking cavity 8012, and a third check piece 80200 and a fourth check piece 80201 are respectively arranged in the third flow channel 8019 and the fourth flow channel 8020; the gas purification portion 802 includes a flow cavity 8021 and a backflushing cavity, the backflushing cavity is arranged on the outer side of the flow cavity 8021, a flow adjusting block 8022 is arranged in the flow cavity 8021, the flow adjusting block 8022 is used for adjusting the flow in the flow cavity 8021, a filter screen 8023 is arranged between the flow cavity 8021 and the backflushing cavity, the filter screen 8023 is arranged on the outer side of the flow adjusting block 8022, the flow adjusting block 8022 can move up and down along the filter screen 8023, the flow cavity 8021 includes a first gas inlet 8024, a first gas outlet 8025 and a second gas outlet 8026, one end of the first gas inlet 8024 is communicated with a first material conveying pipe 6001, the first gas outlet 8025 is communicated with a first flow channel 8014, and the second gas outlet 8026 is communicated with a third flow channel. The heat flow generated by the heating device 7 is filtered and purified by the air purifying part 802 under the action of the braking part 801, flows into the first channel 600 from the first connecting pipe 9 through the braking part 801, and can enter the second channel 602 along the second connecting pipe 10; the preheating channel 6 is preheated, materials are pumped out after the preheating channel 6 is preheated, when the preheating device works, the heating device 7 runs to generate heat flow, at the moment, the braking part 801 runs, the first braking block 8013 reciprocates along the first braking cavity 8011 under the condition that the first braking block 8018 is not contacted with the second braking block 8018, so that braking air suction is formed in the first braking cavity 8011, the second braking block 8018 seals the contact position of the first braking cavity 8011 and the second braking cavity 8012, at the moment, the heat flow passes through the first air inlet 8024, penetrates through the filter screen 8023, enters the flow cavity 8021, then enters the first flow channel 8014 from the first air outlet 8025, and is pressed to the second flow channel 8015 under the action of the first braking block 8013; because the flow is affected when more impurities are accumulated by the filter screen 8023, the flow adjusting block 8022 can continuously move downwards to keep the flow constant, when the flow adjusting block 8022 with more impurities reaches the limit, the back flushing cleaning is needed, at this time, the first brake block 8013 reciprocates towards the second brake block 8018 under the working condition of closing the first flow passage 8014, at this time, the first brake chamber 8011 is vacuum-closed, the second brake chamber 8012 forms braking air exhaust, the impurities on the filter screen 8023 are blown off by heat flow and are discharged from the second air outlet 8026 to enter the second brake chamber 8012 through the third flow passage 8019, and are discharged from the fourth flow passage 8020 under the action of the second brake block 8018, the structure can purify the air efficiently, and can clean the filter screen 8023 by itself, the use efficiency is high, and the convenience is provided, the arrangement of the check piece can prevent the air from flowing backwards, and the pressure relief valve 11 are arranged on the outer side of the heat preservation cylinder 5, when the air flow and the pressure in the heat preservation cylinder 5 are too much, the pressure can be timely released and exhausted, and the two sides of one end, away from the first brake block 8013, of the second brake block 8018 are provided with reset pieces, so that the second brake block 8018 after moving can be quickly reset.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An integral pre-twisted tensioning insulator comprising:
an insulator body (1);
it is characterized by also comprising:
the number of the heart rings (2) is two, and the two heart rings (2) are arranged in the insulator body (1);
the preformed armor rods (3), the preformed armor rods (3) are sleeved on the outer sides of the heart rings (2);
the two heart-shaped rings (2) are buckled with each other, and the preformed armor rods (3) extend out of the two ends of the insulator body (1) from the heart-shaped rings (2).
2. The integrated pre-twisted tensioning insulator as claimed in claim 1, wherein: one side of the chicken heart ring (2) is provided with an arc groove (200) for sleeving the preformed armor rods (3) outside the chicken heart ring, and the other side of the chicken heart ring is provided with a buckling surface (201).
3. The integrated pre-twisted tensioning insulator as claimed in claim 2, wherein: the distance between the buckling surfaces (201) of the two buckling heart rings (2) is 15-20 mm.
4. The integrated pre-twisted tensioning insulator as claimed in claim 1, wherein: the insulator body (1) is formed by injection molding of reinforced nylon engineering plastics, and the outer side of the insulator body (1) is coated with a protective sleeve (100).
5. A production process of the integrated pre-twisted tensioning insulator according to any one of claims 1 to 4, characterized by comprising the following steps:
s1, adopting ZL101A material to perform low-pressure casting forming to form a chicken heart ring (2);
s2, placing the chicken heart ring (2) into a heat treatment furnace, heating to 520 ℃ within 3.5h, keeping the temperature for 5h, taking out the product, and rapidly placing the product into a water pool at 80 ℃ within 15S for water cooling and soaking for 6 min;
s3, placing the chicken heart ring (2) into an aging furnace, heating the aging furnace to 170 ℃, and preserving heat for 4 hours to form a finished product of the chicken heart ring (2);
s4, forming preformed armor rods (3) and sleeving the core rings (2) into a whole, and placing the two core rings (2) into an insulator forming die of an injection molding machine;
s5, adding reinforced nylon engineering plastic particles into a charging barrel (4) of an injection molding machine, preheating the particles, injecting the preheated particles into a heat-insulating barrel (5), outputting the particles into the injection molding machine through the heat-insulating barrel (5), and performing injection molding on the insulator body (1);
and S6, a protective sleeve (100) is injected or sleeved on the cooled insulator body (1).
6. The production process of the integrated pre-twisted tensioning insulator according to claim 5, characterized in that: in the step S5, a preheating device is arranged between the charging barrel (4) and the heat-insulating barrel (5), the preheating device is used for extracting and preheating materials in the charging barrel (4) and pumping the materials into the heat-insulating barrel (5), the heat-insulating barrel (5) is used for insulating reinforced nylon engineering plastics, and the materials are introduced into an injection molding machine when the injection molding machine is in operation.
7. Process for the production of an integral pre-twisted tensioning insulator according to claim 6, characterized in that said preheating means comprise a preheating channel (6), said preheating channel (6) comprising:
a first channel (600), the first channel (600) comprising,
a first feed delivery pipe (6001);
a second feed delivery pipe (6002);
the first switching piece (6003), the first conveying pipeline (6001) and the second conveying pipeline (6002) are respectively arranged on two sides of the first switching piece (6003);
wherein, the feed inlet of first conveying pipeline (6001) and the top of feed cylinder (4) interconnect, the discharge gate of second conveying pipeline (6002) and the lateral wall upper end interconnect of first conversion piece (6003), second conveying pipeline (6002) feed inlet and first conversion piece (6003) lateral wall lower extreme interconnect, second conveying pipeline (6002) form section A (6004) by the vertical upwards extension of feed inlet, the level of section A (6004) is higher than the level of first conversion piece (6003), the one end that this feed inlet was kept away from to section A (6004) transversely extends to first conversion piece (6003) direction and forms section B (6005), the one end that section B (6005) deviates from section A (6004) is vertical downwardly extending and is passed through to the bottom and is worn out by the top of first conversion piece (6003) and forms section C (6006), section C (6006) forms the discharge gate, the discharge port is provided with a driving pump (601).
8. Process for producing an integral pre-twisted tensioning insulator according to claim 7, characterized in that said preheating channel (6) further comprises:
a second channel (602), the second channel (602) comprising:
a third feed delivery pipe (6021);
a fourth feed delivery pipe (6022);
a second conversion member (6023), wherein the third material conveying pipe (6021) and the fourth material conveying pipe (6022) are respectively arranged at two sides of the second conversion member (6023);
one end of the third material conveying pipe (6021) is connected with the driving pump (601), the other end of the third material conveying pipe extends vertically upwards to penetrate out of the top of the second conversion part (6023) to form a D section (6024), one end of the D section (6024) close to the second conversion part (6023) extends outwards and transversely to form an E section (6025), one end of the E section (6025) departing from the D section (6024) extends vertically downwards and is connected with the lower portion of the side wall of the second conversion part (6023), the feeding hole of the fourth material conveying pipe (6022) is connected with the upper portion of the side wall of the second conversion part (6023), and the discharging hole of the fourth material conveying pipe is connected with the top of the heat preservation barrel (5).
9. The production process of the integrated pre-twisted tensioning insulator according to claim 7 is characterized in that: preheating device still includes heating device (7), heating device (7) are through the lateral wall interconnect of first connecting pipe (9) and first conveying pipeline (6001), be equipped with clarifier (8) and second connecting pipe (10) on first connecting pipe (9), second connecting pipe (10) are located the export direction of clarifier (8), the other end and third conveying pipeline (6021) of second connecting pipe (10) communicate each other, heating device (7) are heat current generater.
10. Process for producing an integral pre-twisted tensioning insulator according to claim 9, characterized in that said purifier (8) comprises:
a housing (800);
a brake unit (801);
the brake part (801) and the air purification part (802) are arranged in the shell (800), and the brake part (801) and the air purification part (802) are arranged adjacently;
the braking portion (801) comprises a first braking cavity (8011) and a second braking cavity (8012) which are communicated with each other, a first braking block (8013) is arranged in the first braking cavity (8011), a second braking block (8018) is arranged in the second braking cavity (8012), a first runner (8014) and a second runner (8015) are respectively arranged at the upper end and the lower end of the first braking cavity (8011), a first check piece (8016) is arranged in the first runner (8014), a second check piece (8017) is arranged in the second runner (8015), one end, deviating from the first braking cavity (8011), of the second runner (8015) is communicated with a first conveying pipeline (6001), one end, deviating from the first braking cavity (8011), of the first runner (8014) is communicated with the gas cleaning portion (802), and a third runner (8019) and a fourth runner (8020) are respectively arranged on one side, facing the gas cleaning portion (802), of the second braking cavity (8012), a third check piece (80200) and a fourth check piece (80201) are respectively arranged in the third flow passage (8019) and the fourth flow passage (8020); the gas purification portion (802) comprises a flow cavity (8021) and a backflushing cavity, the backflushing cavity is arranged on the outer side of the flow cavity (8021), a flow adjusting block (8022) is arranged in the flow cavity (8021), the flow adjusting block (8022) is used for adjusting the flow in the flow cavity (8021), a filter screen (8023) is arranged between the flow cavity (8021) and the backflushing cavity, the filter screen (8023) is arranged on the outer side of the flow adjusting block (8022), the flow adjusting block (8022) can move up and down along the filter screen (8023), the flow cavity (8021) comprises a first gas inlet (8024), a first gas outlet (8025) and a second gas outlet (8026), one end of the first gas inlet (8024) is communicated with a first material conveying pipe (6001), the first gas outlet (8025) is communicated with the first material conveying channel (8014), and the second gas outlet (8026) is communicated with a third material conveying channel (8019).
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| CN202110832240.8A CN113506660B (en) | 2021-07-22 | 2021-07-22 | Integrated pre-twisted tensioning insulator and production process thereof |
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| CN202110832240.8A CN113506660B (en) | 2021-07-22 | 2021-07-22 | Integrated pre-twisted tensioning insulator and production process thereof |
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| CN208874229U (en) * | 2018-09-30 | 2019-05-17 | 江苏畅源电气设备有限公司 | Insulate preformed tension wire clamp |
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| GB2182686A (en) * | 1985-10-23 | 1987-05-20 | Preformed Line Products Co | Assembly for attachment of overhead lines, especially power cables to an insulator |
| US20020000326A1 (en) * | 1997-03-11 | 2002-01-03 | Daisaku Goto | Method of manufacturing composite insulator and packing member for use in same |
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|---|---|
| CN113506660B (en) | 2022-10-04 |
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