CN207529728U - A kind of insulation mandrel - Google Patents
A kind of insulation mandrel Download PDFInfo
- Publication number
- CN207529728U CN207529728U CN201721406447.4U CN201721406447U CN207529728U CN 207529728 U CN207529728 U CN 207529728U CN 201721406447 U CN201721406447 U CN 201721406447U CN 207529728 U CN207529728 U CN 207529728U
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- plug
- buffer layer
- inner core
- core rod
- insulation mandrel
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Abstract
The utility model discloses a kind of insulation mandrel, which includes inner core rod, buffer layer and winding pipe, and buffer layer is coated on inner core rod, and buffer layer is formed by thermosets, and winding pipe is set on inner core rod.The insulation mandrel of the utility model, is provided with buffer layer in insulation mandrel, which can solve the problems, such as the interfacial separation between inner core rod and winding pipe.
Description
Technical field
The utility model is related to a kind of transmission of electricity insulator arrangement field, specifically a kind of insulation mandrels.
Background technology
At present, support insulator plays the important work of support power equipment and electric insulation in AC and DC transmission line of electricity
With being the indispensable critical elements of electric system, be widely used in the equipment such as reactor, capacitor tower.Post composite insulator
Including fiberglass reinforced epoxy plug, end coupling, high-temperature silicon disulfide rubber full skirt.Wherein fiberglass reinforced epoxy plug is to undertake
The critical component of mechanical load needs to have enough electrical insulation properties.
In the higher power equipment of voltage class, to ensure enough mechanical strengths, larger diameter plug need to be selected, greatly
Diameter plug is mostly pultrusion plug through winding or resin pouring molding.As interior insulation material, pillar insulator core domestic demand expires
, there is plug and winding layer or pouring material interfacial separation in the requirements such as sufficient flawless gap, and current major diameter plug,
Therefore it is one of key technology of voltage levels support insulator to solve interface problem.
The method for usually solving interface problem is, in coarse pultrusion mandrel surface of polishing, to be carried out again after brushing coupling agent
It winds or pours.But brushing coupling agent can not fundamentally solve the problems, such as interfacial separation, and there are still boundaries after insulation tube curing
The phenomenon that face detaches.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of insulation mandrel, insulation mandrel setting
Buffer layer, the buffer layer can solve the problems, such as the interfacial separation between inner core rod and winding pipe.
To achieve the above object, technical solution is as follows used by the utility model：Insulation mandrel includes inner core rod, buffering
Layer and winding pipe, buffer layer are coated on inner core rod, and winding pipe is wound on buffer layer, and the buffer layer is by thermosets shape
Into.
Above-mentioned insulation mandrel sets buffer layer between inner core rod and winding pipe, which is made of thermosets,
With relatively low elasticity modulus, in insulation mandrel during by temperature, stress, the shearing formed in stress transfer is buffered
Stress avoids the Interface Cracking between inner core rod and winding pipe.
Wherein, above-mentioned thermosets is thermosetting polyester material.
Wherein, the thickness of above-mentioned buffer layer is 0.5 millimeter to 2 millimeters.Further, the thickness of above-mentioned buffer layer is 1 milli
Rice.
Wherein, above-mentioned buffer layer is formed by the thermosets of dipping adhesive.Further, above-mentioned adhesive is epoxy
Resin adhesive.
Above-mentioned epoxy resin adhesive enables thermosets and inner core rod and the equal gluing of winding pipe good, has simultaneously
Standby relatively low elasticity modulus.
Wherein, above-mentioned inner core rod is made of a plug.
Wherein, above-mentioned inner core rod includes the first plug and is centered around the second plug of the first plug circumference laying, the first core
Buffer layer is respectively provided on stick and the second plug.
Buffer layer is respectively provided on above-mentioned first plug and the second plug, avoiding may between the first plug and the second plug
The interfacial separation problem of appearance.
Wherein, inner core rod is by fiber pultrusion.
Wherein, above-mentioned winding pipe is entwined by fiber.
Description of the drawings
Fig. 1 is the longitudinal schematic cross-sectional view of the insulation mandrel 100 of the utility model embodiment one radially；
Fig. 2 is the enlarged structure schematic diagram of A in Fig. 1.
Fig. 3 is the longitudinal schematic cross-sectional view of the insulation mandrel 200 of the utility model embodiment two radially；
Fig. 4 is the enlarged structure schematic diagram of B in Fig. 3.
Specific embodiment
According to requiring, specific embodiment of the present utility model will be disclosed here.It is to be understood, however, that institute here
The embodiment of disclosure is only the exemplary of the utility model, can be presented as various forms.Therefore, it discloses here
Detail be not to be considered as limiting, and be merely possible to the basis of claim and as instructing this field
Technical staff by practice it is any it is appropriate in a manner of differently apply the representative basis of the utility model, including using here
The feature that disclosed various features and combination may not disclosed clearly here.
Embodiment one：
As depicted in figs. 1 and 2, the insulation mandrel 100 of the present embodiment includes inner core rod 110, buffer layer 120 and winding pipe
130, buffer layer 120 is coated on inner core rod 110, and winding pipe 130 is wrapped on buffer layer 120, and buffer layer 120 is by thermosetting material
Material is formed.
In the present embodiment, inner core rod 110, buffer layer 120 and winding pipe 130 are set gradually, and impregnating resin from inside to outside
Matrix (not shown) forms insulation mandrel 100.Buffer layer 120 is coated on inner core rod 110, and winding pipe 130 is wrapped in slow
It rushes on layer 120, the close connection between each other of inner core rod 110, buffer layer 120 and winding pipe 130.
In the present embodiment, thermosets uses thermosetting polyester material.Certainly other thermosettings can also actually be used
Property material replace.
Wherein, the thickness of buffer layer 120 is 0.5 millimeter to 2 millimeters.Specifically, the thickness of buffer layer 120 is 1mm.It is practical
The thickness of buffer layer 120 can also as the case may be, be adjusted, to adapt to the connection between interface.
Wherein, buffer layer 120 is formed by the thermosets of dipping adhesive.Specifically, adhesive is epoxide-resin glue
Glutinous agent.It is contemplated that, other adhesives with gluing effect are applicable.Further, thermosets can not also
Adhesive is impregnated, coordinates method in a different process, forms buffer layer.
After winding pipe 130 is wound, the conditions such as temperature, stress amiable time can change.Correspondingly, inner core rod
110 and winding pipe 130 can convergent-divergent, can also generate certain stress shearing force between interface.Buffer layer 120 has relatively low elasticity
Modulus using the elastic deformation of itself, adapts to the variation of inner core rod 110 and winding pipe 130, so as to avoid inner core rod 110 and twine
Interfacial separation problem between pipe 130.
Wherein, inner core rod 110 is by fiber pultrusion.Specifically, inner core rod 110 be glass fibre pultrusion, inner core
Stick 110 is made of the plug of a pultrusion.
Wherein, winding pipe 130 is wrapped in by fiber on buffer layer 120.Specifically, fiber is glass fibre, also may be used certainly
Think other fibrous materials.
Embodiment two：
As shown in Figure 3 and Figure 4, the insulation mandrel 200 of the present embodiment includes inner core rod 210, buffer layer 220 and winding pipe
230, buffer layer 220 is coated on inner core rod 210, and winding pipe is wound on buffer layer 220, and buffer layer 220 is by thermosets
It is formed.
Wherein, inner core rod 210 includes plug 211 and is centered around the plug 212 of 211 surrounding of plug laying, plug 211 and core
Buffer layer 220 is respectively provided on stick 212.
In present embodiment, using the combination of plug 211 and plug 212, inner core rod 210 is formed so that insulation mandrel 200
Intensity with bigger.
Specifically, the diameter of plug 211 is more than the diameter of plug 212, and plug 212 is 10, tangent with plug 211,
It is tangent between adjacent plug 212.Certainly, plug 211 and plug 212 can also diameter be identical or the diameter of plug 212 is big
Other arrangement modes can also be used between the diameter of plug 211, plug 211 and plug 212.
Wherein, buffer layer 220 is respectively provided on plug 211 and every plug 212, buffer layer 220 is formed by thermosets.
In the present embodiment, thermosets uses thermosetting polyester material.Actually other thermosets can also be used to replace certainly
It changes.
Wherein, the thickness of buffer layer 220 is 0.5 millimeter to 2 millimeters.Specifically, the thickness of buffer layer 220 is 2 millimeters.It is real
Border can also as the case may be, adjust the thickness of buffer layer 220, to adapt to the connection between interface.
Wherein, buffer layer 220 is formed by the thermosets of dipping adhesive.Specifically, adhesive is epoxide-resin glue
Glutinous agent, other certain adhesives with gluing effect are also applicable in.The equal filled resin base in the gap of plug 211 and plug 212
Body 240.
Buffer layer is respectively provided on plug 211 and every plug 212, not only avoids the boundary of inner core rod 210 and winding pipe 230
Face separation problem, also avoid between plug 211 and plug 212 and plug 211, plug 212 and resin matrix 240 between
Interfacial separation problem.
Wherein, plug 211 and plug 212 are respectively by fiber pultrusion.Specifically, plug 211 and plug 212 respectively by
Glass fibre pultrusion.
Wherein, winding pipe 230 is wound on the outer surface that 10 plugs 212 are surrounded, is wound in by fiber winding forming
The inner wall and plug 212 of the winding pipe 230 of type are tangent.Specifically, fiber is glass fibre, naturally it is also possible to be other fibers
Material.
The technology contents and technical characterstic of the utility model have revealed that as above, it being understood, however, that in the utility model
Under creative ideas, those skilled in the art can make various changes and improve to above structure and material, including independent here
The combination of technical characteristic for disclosing or being claimed, it will be apparent that other combinations including these features.These deformations and/or combination
It each falls in the technical field involved by the utility model, and falls into the protection domain of the utility model claims.
Claims (10)
1. a kind of insulation mandrel, it is characterised in that：The insulation mandrel includes inner core rod, buffer layer and winding pipe, the buffering
Layer is coated on the inner core rod, and the winding pipe is wound on the buffer layer, and the buffer layer is formed by thermosets.
2. insulation mandrel as described in claim 1, it is characterised in that：The thermosets is thermosetting polyester material.
3. insulation mandrel as described in claim 1, it is characterised in that：The thickness of the buffer layer is 0.5 millimeter to 2 millimeters.
4. insulation mandrel as claimed in claim 3, it is characterised in that：The thickness of the buffer layer is 1 millimeter.
5. insulation mandrel as described in claim 1, it is characterised in that：The buffer layer by dipping adhesive thermosets
It is formed.
6. insulation mandrel as claimed in claim 5, it is characterised in that：The adhesive is epoxy resin adhesive.
7. insulation mandrel as described in claim 1, it is characterised in that：The inner core rod is made of a plug.
8. insulation mandrel as described in claim 1, it is characterised in that：The inner core rod includes the first plug and is centered around described
The second plug that first plug circumference is laid is respectively provided with the buffer layer on first plug and second plug.
9. insulation mandrel as described in claim 1, it is characterised in that：The inner core rod is by fiber pultrusion.
10. insulation mandrel as described in claim 1, it is characterised in that：The winding pipe is entwined by fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721406447.4U CN207529728U (en) | 2017-10-26 | 2017-10-26 | A kind of insulation mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721406447.4U CN207529728U (en) | 2017-10-26 | 2017-10-26 | A kind of insulation mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207529728U true CN207529728U (en) | 2018-06-22 |
Family
ID=62571289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721406447.4U Active CN207529728U (en) | 2017-10-26 | 2017-10-26 | A kind of insulation mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207529728U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742558A (en) * | 2017-10-26 | 2018-02-27 | 江苏神马电力股份有限公司 | A kind of insulation mandrel and preparation method thereof |
| CN112435815A (en) * | 2020-11-16 | 2021-03-02 | 江苏南瓷绝缘子股份有限公司 | High-strength suspension insulator for ultra-high voltage transmission line |
-
2017
- 2017-10-26 CN CN201721406447.4U patent/CN207529728U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742558A (en) * | 2017-10-26 | 2018-02-27 | 江苏神马电力股份有限公司 | A kind of insulation mandrel and preparation method thereof |
| CN112435815A (en) * | 2020-11-16 | 2021-03-02 | 江苏南瓷绝缘子股份有限公司 | High-strength suspension insulator for ultra-high voltage transmission line |
| CN112435815B (en) * | 2020-11-16 | 2022-06-21 | 江苏南瓷绝缘子股份有限公司 | High-strength suspension insulator for ultra-high voltage transmission line |
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