CN102789849B - Partition type compound insulator, preparation mould and preparation method thereof - Google Patents
Partition type compound insulator, preparation mould and preparation method thereof Download PDFInfo
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- CN102789849B CN102789849B CN 201210289932 CN201210289932A CN102789849B CN 102789849 B CN102789849 B CN 102789849B CN 201210289932 CN201210289932 CN 201210289932 CN 201210289932 A CN201210289932 A CN 201210289932A CN 102789849 B CN102789849 B CN 102789849B
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Abstract
The invention relates to a partition type compound insulator with jacket umbrella skirt sets different in creeping distance, a preparation mould and a preparation method thereof. The partition type compound insulator provided by the invention comprises a core bar, an end part component and a jacket umbrella skirt part, wherein the jacket umbrella skirt part is integrally arranged on the core bar in an injection molding form; the jacket umbrella skirt part comprises at least two constant creeping distance value jacket umbrella skirt distributing areas with different creeping distances; and each of the constant creeping distance value jacket umbrella skirt distributing areas comprises constant creeping distance value jacket umbrella skirt sets same in the creeping distance and positioning jacket umbrella skirt sets located at two ends of the constant creeping distance value jacket umbrella skirt sets. The invention also provides the preparation mould of the partition type compound insulator and the preparation method for preparing the partition type compound insulator. The partition type compound insulator has the beneficial effects that the optimized combination is performed according to different creeping distance demands and the cost is greatly lowered.
Description
Technical field
The present invention relates to the T & D Technology field, relate in particular to a kind of in the T & D Technology field for rated voltage higher than the l0kV overhead transmission line, there is the partition type composite insulator of different creep distance sheath full skirt groups and prepare mould, preparation method.
Background technology
Composite insulator product quality key is the safe and reliable of electrical insulation properties and mechanical performance.The shape and structure (being the insulator section shape) that forms the sheath full skirt of composite insulator product external insulation is the important parameter that ensures electrical insulation properties, and should meet relevant home and abroad standard.
The prior art of the long bar-shaped composite insulator string of injection technique making at present is; In the shaping mould of selecting, through injection technique, form whole sheath full skirt string.When the minimum arcing distance (being equal to sheath full skirt string axial length) of product requires to be greater than shaping mould when long, need to continue to use selected shaping mould, then sectional making sheath full skirt in order, to extend its axial length.Refute and connect between two sections, adopt the part sheath full skirt of the afterbody will be shaped the last period, put into the anterior die cavity of same a molding, use as location.Re-use injection technique and form the sheath full skirt of the integral body of next section in the empty die cavity of residue.That is to say, the selected shaping mould of Reusability is implemented sectional making, forms the composite insulator consisted of single definite value creep distance sheath full skirt group, until the sheath full skirt string axial length of making meets product requirement; Simultaneously, the general injection shaping sheath formed creepage distance of full skirt external insulation (hereinafter to be referred as creep distance) be built in sections, must meet the requirement of whole insulator product creep distance after stack.This technique is called segmentation general injection technique.
Making composite insulator must be by national standard, should meet the basic demand of the creepage coefficient (C.F.) of the rated voltage of standard code, specified mechanical load, structure height, arcing distance, creep distance, respective standard regulation and section shape parameter etc.Specified mechanical load determines the internal diameter (being equal to core diameter) of sheath; Arcing distance determines the axial length of general injection shaping sheath full skirt; Creep distance determines the section shape parameter of general injection shaping sheath full skirt.Therefore, by each grade of specified mechanical load, make formation sheath internal diameter identical, " shaping mould " of the definite value creep distance sheath full skirt group that grade is different.
Yet for exchanging, the standardized product of the different electric pressures of direct current, although sheath internal diameter (being core diameter) is identical, arcing distance, creep distance difference are quite large.Not, composite insulator according to the actual requirements, products such as derivative numerous different arcing distances that require, creep distance, and often there is very big difference in standard value, often is called " nonstandard " product, occupies considerable quantity on market.Because existing " shaping mould " can not be applicable to the demand of every kind of standard, " nonstandard " product fully, and the involving great expense of " shaping mould ", can not be every kind of product special " shaping mould ".In the prior art of actual production, to meeting of arcing distance demand, adopt the hop count that increases, subtracts whole stage injection to be regulated.The creep distance demand is adopted to peaceful many principles of not lacking, because product generally only has placing restrictions on of lower limit to the creep distance value, and there is no placing restrictions on of the upper limit.Even two grade creep distance value spans are very large, also can only make and be met with " shaping mould " that form a large grade definite value creep distance sheath full skirt group.Thereby, often form a lot of products and have the unnecessary creep distance that numerical value is quite large, especially " nonstandard " product is more serious.Yet creep distance is that the sheath full skirt section outline made from sizing material forms, and generally forms the 1mm creep distance, on average needs sizing material 0.6～1.2 gram, obviously unnecessary creep distance means the sizing material waste.The product consumption of insulator is very large, especially " nonstandard " product.Thereby it is very large wasting sizing material quantity due to unnecessary creep distance.And existing composite insulator product, from result of use, both claimed to creep distance numerical value at present, again to creepage coefficient (C.F.), the parameter that is whole insulator claims, and total creepage distance (L) of insulator is except arcing distance (h), and L/ h must be less than definite value.In other words, to placing restrictions on of the existing lower limit of creep distance of product formation, placing restrictions on of the upper limit arranged again.A difficult problem that forms prior art is: or drop into substantial contribution and make the different definite value creep distances of the more grades of formation, or " shaping mould " of special sheath full skirt, the sizing material waste of avoiding as far as possible unnecessary creep distance to cause, but this need expend great amount of investment, " shaping mould " utilization rate even had is very low, causes the investment waste; Or limitedly make to form " shaping mould " of the sheath full skirt of a small amount of grade definite value creep distance, yet, the waste of a large amount of sizing materials that unavoidably cause unnecessary creep distance to cause.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of partition type composite insulator and prepare mould, preparation method.
The invention provides a kind of partition type composite insulator, comprise plug, the end assembly be connected with described plug two ends respectively and be arranged on the sheath umbrella skirt section on described plug, described sheath umbrella skirt section comprises at least different definite value creep distance sheath full skirt distributed area of two parts creep distance, every part definite value creep distance sheath full skirt distributed area comprise definite value creep distance sheath full skirt group that creep distance is identical and when sectional making for the positioning sheath full skirt group that is positioned at described definite value creep distance sheath full skirt group two ends in the mould location.
As a further improvement on the present invention, the definite value creep distance sheath full skirt group in every part definite value creep distance sheath full skirt distributed area has two groups and connect successively along the axis of described plug at least, and described positioning sheath full skirt group has two groups and be positioned at the two ends of all described definite value creep distance sheath full skirt groups.
As a further improvement on the present invention, the creep distance of the definite value creep distance sheath full skirt group in the definite value creep distance sheath full skirt distributed area of different creep distances is unequal.
The present invention also provides a kind of the prepare mould of moulding as the described partition type composite insulator of above-mentioned middle any one that be used for, the submodule tool that comprises the definite value creep distance sheath full skirt distributed area that at least two groups are different for the preparation of creep distance, described submodule tool comprises the main die cavity of the definite value creep distance sheath full skirt group identical for the preparation of creep distance and for the preparation of the secondary die cavity of positioning sheath full skirt group, described secondary die cavity has two and be positioned at the two ends of described main die cavity, described main die cavity, secondary die cavity distributes along axis, for the preparation of creep distance, the identical and creep distance of the secondary die cavity shape of the submodule tool in different definite value creep distance sheath full skirt distributed areas equates.
As a further improvement on the present invention, for the preparation of creep distance, the creep distance of the main die cavity of the submodule tool in different definite value creep distance sheath full skirt distributed areas is unequal.
As a further improvement on the present invention, described secondary die cavity comprises that location die cavity, sheath increase die cavity and encapsulate die cavity, and described location die cavity, sheath growth die cavity and encapsulate die cavity are interchangeable.
The present invention also provides the preparation method that mould prepares the partition type composite insulator for preparing of a kind of application as the described partition type composite insulator of above-mentioned middle any one, comprises the steps:
A, the submodule tool by preparation the first creep distance carry out injection moulding, mold the definite value creep distance sheath full skirt distributed area of the first creep distance;
The positioning sheath full skirt group in B, the definite value creep distance sheath full skirt distributed area by the first creep distance is put into the secondary die cavity of the submodule tool for preparing the second creep distance, carry out injection moulding by the submodule tool for preparing the second creep distance, mold the definite value creep distance sheath full skirt distributed area of the second creep distance.
As a further improvement on the present invention, also comprise step C, the positioning sheath full skirt group in the definite value creep distance sheath full skirt distributed area by the second creep distance is put into the secondary die cavity of the submodule tool of the third creep distance of preparation, carry out injection moulding by the submodule tool for preparing the third creep distance, mold the definite value creep distance sheath full skirt distributed area of the third creep distance.
The invention has the beneficial effects as follows: by such scheme, can require according to different creep distances to be optimized combination, greatly reduce cost.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of partition type composite insulator of the present invention;
Fig. 2 is the structural representation of submodule tool of the first creep distance for preparing mould of a kind of partition type composite insulator of the present invention;
Fig. 3 is the structural representation of submodule tool of the second creep distance for preparing mould of a kind of partition type composite insulator of the present invention;
Fig. 4 is the structural representation of submodule tool of the third creep distance for preparing mould of a kind of partition type composite insulator of the present invention.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the present invention is further described.
Drawing reference numeral in Fig. 1 to Fig. 4 is: plug 100; The definite value creep distance sheath full skirt distributed area 1 of the first creep distance; The definite value creep distance sheath full skirt group 11 of the first creep distance; The definite value creep distance sheath full skirt distributed area 2 of the second creep distance; The definite value creep distance sheath full skirt group 21 of the second creep distance; The definite value creep distance sheath full skirt distributed area 3 of the third creep distance; The definite value creep distance sheath full skirt group 31 of the third creep distance; The main die cavity 4 of the submodule tool of the first creep distance; The main die cavity 5 of the submodule tool of the second creep distance; The main die cavity 6 of the submodule tool of the third creep distance; Secondary die cavity 7.
As shown in Figure 1, a kind of partition type composite insulator, comprise plug 100, the end assembly be connected with described plug 100 two ends respectively and be arranged on the sheath umbrella skirt section that the injection moulding on described plug 100 is integrated, described sheath umbrella skirt section comprises at least different definite value creep distance sheath full skirt distributed area of two parts creep distance, the present invention preferably arranges the definite value creep distance sheath full skirt distributed area 1 of the first creep distance, the definite value creep distance sheath full skirt distributed area 2 of the second creep distance and the definite value creep distance sheath full skirt distributed area 3 of the third creep distance, every part definite value creep distance sheath full skirt distributed area comprises the definite value creep distance sheath full skirt group that creep distance is identical and is positioned at the positioning sheath full skirt group at described definite value creep distance sheath full skirt group two ends.Wherein, the definite value creep distance sheath full skirt distributed area 1 of the first creep distance has the definite value creep distance sheath full skirt group 11 of a plurality of the first creep distances, the definite value creep distance sheath full skirt distributed area 2 of the second creep distance has the definite value creep distance sheath full skirt group 21 of a plurality of the second creep distances, the definite value creep distance sheath full skirt distributed area 3 of the third creep distance has the definite value creep distance sheath full skirt group 31 of a plurality of the third creep distances, wherein, definite value creep distance sheath full skirt group is pressed section shape with the same loop rule of conversion, form the definite value creep distance sheath full skirt distributed area with definite value creep distance, again by the many groups of definite value creep distance sheath full skirt distributed areas with different definite value creep distances, through differently being arranged to form plurality of specifications, the composite insulator of kind arcing distance and creep distance, it is identical that the parameter of the section shape of each definite value creep distance sheath full skirt group has, the difference also had.
The definite value creep distance sheath full skirt group in every branch's definite value creep distance sheath full skirt distributed area has two groups and connect successively along the axis of described plug at least, and described positioning sheath full skirt group has two groups and be positioned at the two ends of all described definite value creep distance sheath full skirt groups.
The creep distance of the definite value creep distance sheath full skirt group in the definite value creep distance sheath full skirt distributed area of different creep distances is unequal, the creep distance of definite value creep distance sheath full skirt group 31 of definite value creep distance sheath full skirt group 21, the third creep distance that is definite value creep distance sheath full skirt group 11, the second creep distance of the first creep distance is unequal, to be formed for rated voltage higher than l0kV overhead transmission line, partition type composite insulator with different creep distance sheath full skirt groups.
The present invention also provides a kind of the prepare mould of moulding as the described partition type composite insulator of above-mentioned middle any one that be used for, the submodule tool that comprises the definite value creep distance sheath full skirt distributed area that at least two groups are different for the preparation of creep distance, the present invention preferably arrange three groups for the preparation of creep distance the submodule tool in different definite value creep distance sheath full skirt distributed areas, described submodule tool comprises the main die cavity of the definite value creep distance sheath full skirt group identical for the preparation of creep distance and for the preparation of the secondary die cavity of positioning sheath full skirt group.Wherein, the submodule tool of the first creep distance comprises main die cavity 4 and the secondary die cavity 7 of the submodule tool of the first creep distance, the submodule tool of the second creep distance comprises main die cavity 5 and the secondary die cavity 7 of the submodule tool of the second creep distance, the submodule tool of the third creep distance comprises main die cavity 6 and the secondary die cavity 7 of the submodule tool of the third creep distance, the described secondary die cavity 7 of the submodule tool of every kind of creep distance has two and be positioned at the two ends of described main die cavity, and described main die cavity, secondary die cavity 7 distribute along axis.Wherein, described main die cavity comprises that many groups have the die cavity that forms identical section shape parameter, has the definite value creep distance sheath full skirt group of definite value creep distance, die cavity and sheath that described secondary die cavity is included in the positioning sheath full skirt group formed outside main die cavity initial and end two ends increase die cavity and encapsulate die cavity, and described location die cavity, sheath growth die cavity and encapsulate die cavity are interchangeable.
For the preparation of creep distance, the creep distance of the main die cavity of the submodule tool in different definite value creep distance sheath full skirt distributed areas is unequal, and the creep distance of the main die cavity 6 of the submodule tool of the main die cavity 5 of the submodule tool of the main die cavity 4 of the submodule tool of the first creep distance, the second creep distance, the third creep distance is unequal.
Form supporting submodule tool by two pairs or more than two secondary different finishing dies, the definite value creep distance sheath full skirt group that the main die cavity of the submodule tool that every pair is supporting forms has same levels definite value creep distance, the definite value creep distance sheath full skirt group that the main die cavity of the submodule tool that each are secondary different forms has the definite value creep distance of different brackets, it is identical that the parameter of its section shape has, some differences.Different submodule tools supporting, in the manufacturing process of segmentation general injection technique, can alternately be used in conjunction with, and can form the composite insulator of plurality of specifications, kind arcing distance and creep distance through permutation and combination.
Be positioned at the outer secondary die cavity of main die cavity head end when the segmentation general injection, as location, this pair die cavity should be able to be put into the positioning sheath full skirt group of the positioning sheath full skirt group that forms with it the made tail end of supporting finishing die and self made tail end, and can post, can not damage put into positioning sheath full skirt group.Through segmentation general injection technique, positioning sheath full skirt group should be able to be put into the outer secondary die cavity of himself main die cavity head end, also can put into the outer secondary die cavity of main die cavity head end of supporting submodule tool, and can post, can not damaged.The positioning sheath full skirt group of putting into is used as location
Described secondary die cavity 7 comprises that location die cavity, sheath increase die cavity and encapsulate die cavity, and described location die cavity, sheath growth die cavity and encapsulate die cavity are interchangeable, and all members of secondary die cavity 7 all are convenient to dismounting and change.
A kind of application, as the preparation method that mould prepares the partition type composite insulator for preparing of the described partition type composite insulator of above-mentioned middle any one, comprises the steps:
A, the submodule tool by preparation the first creep distance carry out injection moulding, mold the definite value creep distance sheath full skirt distributed area 1 of the first creep distance;
The positioning sheath full skirt group in B, the definite value creep distance sheath full skirt distributed area 1 by the first creep distance is put into the secondary die cavity 7 of the submodule tool for preparing the second creep distance, carry out injection moulding by the submodule tool for preparing the second creep distance, mold the definite value creep distance sheath full skirt distributed area 2 of the second creep distance.
Also comprise step C, the positioning sheath full skirt group in the definite value creep distance sheath full skirt distributed area 2 by the second creep distance is put into the secondary die cavity of the submodule tool of the third creep distance of preparation, carry out injection moulding by the submodule tool for preparing the third creep distance, mold the definite value creep distance sheath full skirt distributed area 3 of the third creep distance.
When manufacturing a product by segmentation general injection technique, at first, by the requirement of the performance index such as the specified mechanical load of product, creep distance, choose suitable supporting submodule tool; Then, by each supporting submodule tool being there is to the definite value creep distance sheath full skirt group of different definite value creep distances, carry out permutation and combination, thereby choose best permutation and combination scheme.
During fabrication, by the permutation and combination scheme of described the best, in described supporting submodule tool, first choose wherein first section of a secondary submodule tool making and each section same definite value creep distance sheath full skirt group subsequently.
By the permutation and combination scheme of described the best, in described supporting submodule tool, then choose wherein another secondary submodule tool that can form different definite value creep distance sheath full skirt groups again, continue sectional making, form different definite value creep distance sheath full skirt groups.
Permutation and combination scheme by described the best, in described supporting submodule tool, can choose again the submodule tool that other forms different definite value creep distance sheath full skirt groups, continue sectional making, form a kind of for rated voltage higher than l0kV overhead transmission line, partition type composite insulator with different creep distance sheath full skirt groups.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. a partition type composite insulator, it is characterized in that: comprise plug, the end assembly be connected with described plug two ends respectively and be arranged on the sheath umbrella skirt section on described plug, described sheath umbrella skirt section comprises at least different definite value creep distance sheath full skirt distributed area of two parts creep distance, every part definite value creep distance sheath full skirt distributed area comprise definite value creep distance sheath full skirt group that creep distance is identical and when sectional making for the positioning sheath full skirt group that is positioned at described definite value creep distance sheath full skirt group two ends in the mould location.
2. partition type composite insulator according to claim 1, it is characterized in that: the definite value creep distance sheath full skirt group in every part definite value creep distance sheath full skirt distributed area has two groups and connect successively along the axis of described plug at least, and described positioning sheath full skirt group has two groups and be positioned at the two ends of described definite value creep distance sheath full skirt group.
3. partition type composite insulator according to claim 1, it is characterized in that: the creep distance of the definite value creep distance sheath full skirt group in the definite value creep distance sheath full skirt distributed area of different creep distances is unequal.
One kind be used for moulding as claimed any one in claims 1 to 3 the partition type composite insulator prepare mould, it is characterized in that: the submodule tool that comprises the definite value creep distance sheath full skirt distributed area that at least two groups are different for the preparation of creep distance, described submodule tool comprises the main die cavity of the definite value creep distance sheath full skirt group identical for the preparation of creep distance and for the preparation of the secondary die cavity of positioning sheath full skirt group, described secondary die cavity has two and be positioned at the two ends of described main die cavity, and described main die cavity, secondary die cavity distribute along axis.
Partition type composite insulator according to claim 4 prepare mould, it is characterized in that: for the preparation of creep distance, the creep distance of the main die cavity of the submodule tool in different definite value creep distance sheath full skirt distributed areas is unequal.
Partition type composite insulator according to claim 4 prepare mould, it is characterized in that: described secondary die cavity comprises that location die cavity, sheath increase die cavity and encapsulate die cavity, described location die cavity, sheath increase die cavity and the encapsulate die cavity interchangeable.
An application partition type composite insulator as described as any one in claim 4 to 6 prepare the preparation method that mould prepares the partition type composite insulator, it is characterized in that, comprise the steps:
A, the submodule tool by preparation the first creep distance carry out injection moulding, mold the definite value creep distance sheath full skirt distributed area of the first creep distance;
The positioning sheath full skirt group in B, the definite value creep distance sheath full skirt distributed area by the first creep distance is put into the secondary die cavity of the submodule tool for preparing the second creep distance, carry out injection moulding by the submodule tool for preparing the second creep distance, mold the definite value creep distance sheath full skirt distributed area of the second creep distance.
8. the preparation method of partition type composite insulator according to claim 7, it is characterized in that: also comprise step C, the positioning sheath full skirt group in the definite value creep distance sheath full skirt distributed area by the second creep distance is put into the secondary die cavity of the submodule tool of the third creep distance of preparation, carry out injection moulding by the submodule tool for preparing the third creep distance, mold the definite value creep distance sheath full skirt distributed area of the third creep distance.
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| CN 201210289932 CN102789849B (en) | 2012-08-15 | 2012-08-15 | Partition type compound insulator, preparation mould and preparation method thereof |
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| CN 201210289932 CN102789849B (en) | 2012-08-15 | 2012-08-15 | Partition type compound insulator, preparation mould and preparation method thereof |
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| CN102789849B true CN102789849B (en) | 2013-12-18 |
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| PL122159B1 (en) * | 1979-09-15 | 1982-06-30 | Inst Elektrotechniki | High tension overhead-line instulator of plastic materialx and method of manufacturing the samerytykh ustanovok i sposob izgotovlenija plastmassovogo izoljatora vysokogo naprjazhenija dlja otkrytykh ustanovok |
| CN1255821C (en) * | 2003-10-16 | 2006-05-10 | 武汉市德赛电力设备有限公司 | Unit serial compound insulator |
| CN201489922U (en) * | 2009-04-16 | 2010-05-26 | 陈润修 | Embedded segmented connecting composite insulator |
| CN202736605U (en) * | 2012-08-15 | 2013-02-13 | 秦琛 | Partition type compound insulator and manufacture mould thereof |
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