CN202034137U - Hardware fitting for outer sealing of end part of composite insulator - Google Patents
Hardware fitting for outer sealing of end part of composite insulator Download PDFInfo
- Publication number
- CN202034137U CN202034137U CN2011200905104U CN201120090510U CN202034137U CN 202034137 U CN202034137 U CN 202034137U CN 2011200905104 U CN2011200905104 U CN 2011200905104U CN 201120090510 U CN201120090510 U CN 201120090510U CN 202034137 U CN202034137 U CN 202034137U
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- CN
- China
- Prior art keywords
- composite insulator
- hardware fitting
- cylinder
- silicon rubber
- gold utensil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a hardware fitting for outer sealing of an end part of a composite insulator. The left end of the hardware fitting is provided with a ball head; the right end of the hardware fitting is a cylinder; an outer circle at the right end of the cylinder is provided with at least one annular sealing groove; and isodiametric round holes are arranged along an axial line of the cylinder. The hardware fitting for the outer sealing of the end part of the composite insulator has long service life and a simple machining process.
Description
Technical field
The utility model relates to the production of composite insulator, especially a kind of novel composite insulator end high temperature external seal gold utensil.
Background technology
Because China's electric power network and electric railway is flourish, three kinds of insulators such as composite insulator, porcelain insulator and glass insulator have formed the situation of tripodia your kind effort on application market.Wherein composite insulator is with its good electromechanical properties and the advantage that is easy to transport, and the market share rises year by year.The end seal technology of composite insulator generally has two kinds: a kind of is interior sealing, and a kind of is high temperature silicon rubber external seal.At present the gold utensil outer seal configuration used of manufacturer is referring to accompanying drawing 1, and external seal silica gel thinnest part is not less than 5 ㎜ during design, makes the maximum ga(u)ge of sealing place silicon rubber about 10 ㎜, and the thickness of silicon rubber is greater than the thickness in full skirt thickness.As everyone knows, the sulfuration of silicon rubber need keep official hour to put that under certain temperature and pressure finishing.And this seal form needs elder generation with the gold utensil crimping, enters die production then.The gold utensil part that is exposed to the die cavity outside makes the hermetic unit temperature that is in the die cavity outermost end be lower than the die cavity internal temperature to the environment heat release.The silicon rubber at external seal place reaches the time lengthening of curing temperature, and insulator string umbrella cover partial vulcanization just is complete, and its hermetic unit does not also reach complete cure.The incomplete vulcanization of evidence silicon rubber and over cure all may influence the performance of silicon rubber.In order to overcome this phenomenon, assisted heating device has been installed additional at the two ends of mould in the manufacturer that has, though solved the problem of temperature inequality to a certain extent, has also increased the production cost of production equipment and mould simultaneously.In increasingly competitive today, just increased production cost of products, it is little that production efficiency improves.
Referring to accompanying drawing 1, be provided with a falope at the internal diameter position of gold utensil, can enhanced leaktightness.But in the middle of producing, owing to need before producing to apply one deck coupling agent in mandrel surface and the position that needs silicon rubber to coat, coupling agent is coated on gold utensil inside has increased difficulty on technology, this place is owing to be in inside simultaneously, and present stage is difficult to judge whether whether coupling agent applies all even complete.Mi Feng reliability is just had a greatly reduced quality so herein.Silicon rubber arrives the sealing position at last, stretch into the gold utensil part and easily aeroseal is difficult to guarantee that in the cure efficiency that causes silicon rubber herein (sulfuration of silicon rubber need be finished under the environment at secluding air, if there is air, its corresponding vulcanizing agent of air consumption causes the silicon rubber part not vulcanize.Though have the process of venting in the injection process, be difficult to detect air and whether discharge totally.After the formed product, be in the inside of product herein, caused the uncertainty of product quality.Through to the selective examination of the product of this kind structure gold utensil, the coupling effect of finding to stretch into gold utensil part silicon rubber and gold utensil is not ideal really, incomplete situation occurred not vulcanizing or vulcanizing.
The utility model content
The technical problems to be solved in the utility model provides a kind of long service life, the simple composite insulator of processing technology end external seal gold utensil.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of composite insulator end external seal gold utensil, its left end is provided with bulb, its right-hand member is a cylinder, on described cylinder right-hand member cylindrical, be provided with at least one annular seal groove, be provided with isometrical circular hole along described cylindrical axis.
Adopt the beneficial effect that technique scheme produced to be: the utility model makes the notch cuttype cylinder of right-hand member into isometrical cylinder, then at the annular seal groove of this cylinder cylindrical system of getting on the bus, make that sealing place silicon rubber coating thickness can be a little less than full skirt thickness, the silicon rubber vulcanization time that has guaranteed product integral body is basic identical, and it is normal in service owing to the aging accident that causes in position, position at electrical network effectively to reduce composite insulator; Change the shoulder hole on the cylinder into isometrical circular hole, so normally coated with coupling agent can effectively guarantee uniformity and integrality that coupling agent applies, and then guarantees that coupling intensity reduces, gas can normally be discharged when making simultaneously, and the cure efficiency of silicon rubber also is guaranteed.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic diagram before the utility model improves;
Wherein, 1, seal groove; 2, circular hole; 3, lug boss; 4, shoulder hole; 5, bulb.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Referring to accompanying drawing 1, the utility model improves on the structure of existing gold utensil, it comprises the bulb 5 of being located at left end, its key technology is improved and is: its right-hand member is a cylinder, on described cylinder right-hand member cylindrical, be provided with the seal groove 1 of 2 annulars, be provided with isometrical circular hole 2 along described cylindrical axis.
Referring to accompanying drawing 1 and accompanying drawing 2, the utility model changes over the cylinder identical with the gold utensil external diameter with gold utensil outer projection portion 3, coats position car system 2 road sealing grooves 1 of silicon rubber at needs.Sealing place silicon rubber coats thickness and can be designed to a little less than full skirt thickness, guarantee that the bulk silicon vulcanization of rubber time is basic identical, make the degree of aging of silicon rubber be in same level, it is normal in service owing to the aging accident that causes in part position at electrical network to reduce composite insulator.No longer car system shoulder hole 4, but are designed to circular hole 2, so normally coated with coupling agent, uniformity and integrality that coupling agent applies have been guaranteed, and then guarantee that coupling intensity reduces, and not stretching into portion gas again and can normally discharge, the cure efficiency of silicon rubber also is guaranteed.
Claims (2)
1. composite insulator end external seal gold utensil, its left end is provided with bulb (5), it is characterized in that: its right-hand member is a cylinder, is provided with at least one annular seal groove (1) on described cylinder right-hand member cylindrical, is provided with isometrical circular hole (2) along described cylindrical axis.
2. composite insulator according to claim 1 end external seal gold utensil is characterized in that: described seal groove (1) is provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200905104U CN202034137U (en) | 2011-03-31 | 2011-03-31 | Hardware fitting for outer sealing of end part of composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200905104U CN202034137U (en) | 2011-03-31 | 2011-03-31 | Hardware fitting for outer sealing of end part of composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034137U true CN202034137U (en) | 2011-11-09 |
Family
ID=44896426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200905104U Expired - Lifetime CN202034137U (en) | 2011-03-31 | 2011-03-31 | Hardware fitting for outer sealing of end part of composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202034137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869796A (en) * | 2015-01-19 | 2016-08-17 | 江苏祥源电气设备有限公司 | Hanging composite insulator special bulb |
-
2011
- 2011-03-31 CN CN2011200905104U patent/CN202034137U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869796A (en) * | 2015-01-19 | 2016-08-17 | 江苏祥源电气设备有限公司 | Hanging composite insulator special bulb |
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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 |
Granted publication date: 20111109 |
|
| CX01 | Expiry of patent term |