CN203276979U - Major diameter rod insulator core rod - Google Patents
Major diameter rod insulator core rod Download PDFInfo
- Publication number
- CN203276979U CN203276979U CN 201220663460 CN201220663460U CN203276979U CN 203276979 U CN203276979 U CN 203276979U CN 201220663460 CN201220663460 CN 201220663460 CN 201220663460 U CN201220663460 U CN 201220663460U CN 203276979 U CN203276979 U CN 203276979U
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- Prior art keywords
- plug
- insulator
- major diameter
- rod
- epoxy resin
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Abstract
The utility model discloses a major diameter rod insulator core rod, characterized in that the core rod (2) is provided with circular grooves (4) or thread grooves (5). The core rod is advantaged in that after the grooves on the core rod are solidified, strength among grooves is further enhanced under the action of solidified binder. Through detection of a FZSPW-1120/16 type 1120 kV composite large supporting insulator made by the core rod, bending strength is 18-20 kN, torsional strength is 22-26 kN.m, tensile strength is 210-250 kN, and compression strength is 1550-1800 kN. The parameters are greatly higher than recommended parameters, and yield is improved to about 90% to 92% from original about 80%.
Description
Technical field
The utility model belongs to the bar-shaped composite insulator technical field of using in electric power T ﹠ D Technology field, and definite saying is a kind of major diameter rod insulator plug.
Background technology
At present, make the major diameter rod insulator, as large-diameter pillar insulator, due to the restriction that is subject to material, need to adopt the combination plug through after certain PROCESS FOR TREATMENT, consist of large diameter plug, the application number of once applying for as me is: 200920280937.3, name is called: a kind of combination core rod insulator namely discloses the insulator of this structure.But the problem due to plug itself, after curing, easily produce inner defects i.e.cracks, make the requirement of arriving of the physical index such as tension, resistance to compression, bending resistance of insulator, and due to the existence of these underbead cracks, make the fabrication yield of major diameter composite insulator lower, although taked a lot of innovative technologies, but, rate of finished products does not still reach 80%, so also make the manufacturing cost of large-diameter pillar insulator high, thereby have influence on quality and normal use of insulator.In order to address this problem, designer of the present utility model has done research in earnest, has proposed goal of the invention of the present utility model.
Summary of the invention
Defective and not enough the putting forward such as underbead crack that goal of the invention of the present utility model exists in manufacture process in order to overcome present major diameter core rod of insulator.A kind of major diameter rod insulator plug namely is provided.
Technical solution of the present utility model is achieved in that this major diameter rod insulator plug, it is characterized in that having cannelure (4) or thread groove (5) on said plug (2).
Useful technique effect of the present utility model is: the groove on plug (2) under the effect of the binding agent that has solidified, has further increased intensity between groove and groove after solidify.Through " the FZSPW-1120/16 type 1120kV composite post insulator " detection to being made by this kind plug, bending strength: 18～20kN; Torsional strength: 22～26kNm; Hot strength: 210～250kN; Compressive strength: 1550～1800kN.The regulation that is much higher than recommended parameter, and rate of finished products brings up to 90%～92% by original less than 80%.
Description of drawings
Accompanying drawing 1 is mandrel structure generalized section of the present utility model, and accompanying drawing 2 is the partial cutaway schematic with the spiral fluted plug, and accompanying drawing 3 is two plug arrangement architecture schematic diagrames, and accompanying drawing 4 is vertical views of accompanying drawing 2, mainly illustrates the planform of vertical slot.The rectangle of structure in accompanying drawing 5,6,7,8 explanation plug, square, circular arc and the different cross section shape such as trapezoidal, be not only that the cross section is for circular, can be also according to the cross sectional shape in accompanying drawing, perhaps further the planform in cross section is expanded to other geometric figures, as arc; arc limit triangle etc., all can think a concrete extension of the present utility model.Sequence number in the accompanying drawings is: 1, cured layer, 2, plug, 3, outer cured layer, 4, cannelure, 5, helicla flute, 6, vertical slot.
Embodiment
Below in conjunction with the embodiment that provides in accompanying drawing, structure of the present utility model and use are elaborated.With reference to accompanying drawing, this kind major diameter rod insulator plug is characterized in that having on said plug (2) cannelure (4) that shows in accompanying drawing 3.Perhaps has the thread groove (5) in accompanying drawing 2.For the manufacturing needs of the post insulator that makes its suitable different size model, said plug is the epoxy resin rod.Perhaps said plug is the glass-epoxy rod.The size of plug can be the combination of sizes.
Simple and convenient in order to process, cannelure or thread groove on said plug form by lathe turning cutting.
Make if produce in enormous quantities, the cannelure on said plug or thread groove can be that die casting or cast form.
In order further to increase the intensity that mutually combines of plug, reduce the defectives such as underbead crack, have in the outer surface increase of said plug the vertical slot (6) that parallels to the axis.
Adopt one of this plug concrete implementer's case of making post insulator to be: the composite insulator plug that is formed by described a kind of major diameter rod insulator plug, it is characterized in that core rod of insulator inside has plug (2) by certain assembled arrangement as skeleton, has epoxy resin fiberglass cured layer (1) in the outside of this plug combined frame, the outer cured layer (3) of the epoxy resin that perhaps increases as required.Like this, after solidifying, the epoxy resin of filling in the middle of the cannelure on plug or thread groove solidifies two plugs adjacent to each other closely and connects as one, further, if with vertical slot, after solidifying, its vertical slot and cannelure or thread groove have formed crisscross consolidated structures, make the intensity of plug inside further to be strengthened, thereby overcome originally the deficiency that can only solidify at mandrel surface due to the epoxy resin cure layer.Greatly improved the physical index such as tension, resistance to compression of post insulator.
Embodiment closer to practical application is: the composite insulator plug that is comprised of described a kind of major diameter rod insulator plug, it is characterized in that core rod of insulator inside has evenly distributed plug (2) as skeleton, has epoxy resin fiberglass cured layer (1) in the outside of this plug combined frame, the outer cured layer (3) of the epoxy resin that perhaps increases as required has the silicon rubber full skirt in the outside of epoxy resin cure layer (3).
Claims (6)
1. major diameter rod insulator plug is that the plug composite pouring by sizes forms, and it is characterized in that having cannelure (4) or thread groove (5) on the plug (2) of said sizes.
2. a kind of major diameter rod insulator plug according to claim 1, is characterized in that said plug is the epoxy resin rod.
3. a kind of major diameter rod insulator plug according to claim 1, is characterized in that said plug is the glass-epoxy rod.
4. a kind of major diameter rod insulator plug according to claim 1, is characterized in that the outer surface of said plug has the vertical slot (6) that parallels to the axis.
5. the composite insulator plug that forms of a kind of major diameter rod insulator plug according to claim 1, it is characterized in that core rod of insulator inside has plug (2) by certain assembled arrangement as skeleton, have epoxy resin fiberglass cured layer (1) in the outside of this plug combined frame, perhaps increase as required the outer cured layer (3) of epoxy resin.
6. the composite insulator plug that forms according to claim 1 or a kind of major diameter rod insulator plug claimed in claim 5, it is characterized in that core rod of insulator inside has plug (2) by certain assembled arrangement as skeleton, has epoxy resin fiberglass cured layer (1) in the outside of this plug combined frame, the outer cured layer (3) of the epoxy resin that perhaps increases as required has the silicon rubber full skirt in the outside of epoxy resin cure layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663460 CN203276979U (en) | 2012-12-06 | 2012-12-06 | Major diameter rod insulator core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663460 CN203276979U (en) | 2012-12-06 | 2012-12-06 | Major diameter rod insulator core rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203276979U true CN203276979U (en) | 2013-11-06 |
Family
ID=49507339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220663460 Expired - Lifetime CN203276979U (en) | 2012-12-06 | 2012-12-06 | Major diameter rod insulator core rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203276979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021593A (en) * | 2012-12-06 | 2013-04-03 | 唐苑雯 | Large-diameter rod insulator mandrel |
-
2012
- 2012-12-06 CN CN 201220663460 patent/CN203276979U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021593A (en) * | 2012-12-06 | 2013-04-03 | 唐苑雯 | Large-diameter rod insulator mandrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |