Method of manufacturing plastic insulator
专利摘要:
The present invention provides a synthetic resin insulator consisting essentially of a reinforced synthetic resin material providing the mechanical strength and having metal fittings and synthetic resin shells Sch 1 of different chemical composition and structure, wherein shells produced from an elastomeric material and provided with bores are pushed over a rod 'S' consisting of a mechanically reinforced synthetic resin, the diameters of the bores being equal to or slightly greater than that of the rod, and the shells are firmly and tightly joined to one another, or are integrally produced, to give a shell arrangement which is under axial tension and the ends of the shell arrangement are firmly joined to the rod and/or a fitting. Plastically or elastically deformable compression sleeve Z is also shown. An axially tensioned elastomeric cylinder ZS (Figure 3, not shown) may be provided with semiconducting or insulating shells, or a helical shell may be glued, vulcanised or welded thereto. Dielectric shells may have closed or open pores, and beads or grooves may be on the upper and lower shell surfaces. End fittings are force locked by hydrostatic deformation. Differently shaped shells (Sch 2) (Figure 2, not shown) may be provided at the ends. Further applied tensioning in use increases compression on the insulating viscous packing in gap F and increases longitudinal electrical strength of the inner boundary. Materials are exemplified. <IMAGE> 公开号:SU983758A1 申请号:SU797770508 申请日:1979-03-23 公开日:1982-12-23 发明作者:Манфред Кале 申请人:Комбинат Феб Керамише Верке Хермсдорф (Инопредприятие); IPC主号:
专利说明:
The invention relates to a method for manufacturing a plastic insulator, which is used mainly in power supply devices, especially in aerial lines, as a tension or supporting insulator. It is known that instead of the usual glass and porcelain insulators, plastic insulators are used. These structures are designed primarily as rod insulators for loading under tension and deflection. Such insulators consist of a base rod made of reinforced fiberglass of Duroplast and skirt elements of duoplast or elastomers, as well as Ji3 energy conducting armature. The difference between the various solutions is determined by the choice of material, constructional design and technology required for manufacturing. Typical solutions are described in patents DRP-53D 702, DE-OS 2618 693 and US-PS 3898 372,
权利要求:
Claims (2) [1] The decisive day of the proposed function is to provide the electrical longitudinal strength of the boundary layer 1 between the carrier shaft and the external arrangement of the insulator skirts necessary for the insulating function. Various options are offered for this. One of the options is to manufacture a yuv 1ZM material that, in addition to the necessary resistance to leakage current, has such properties, allow glue or chemical bonding to the bearing rod without gaps (DRP 530 702). The disadvantage of this solution is the risk of treadmill formation. or insufficient adhesion under mechanical load and with temperature drops depending on the type of combination of materials used or on manufacturing technology. This situation is improved as a result of the use of elastomers for skirt elements and by separating between the arrangement of the skirts and the supporting rod with the creation of a gap with the possibility of influencing its electrical longitudinal strength, which can also be filled as necessary with a liquid insulating medium. Such a solution is an insulator design and a method for its manufacture according to the patent US-PS 3898 372. According to the patent, in the curtain elements to increase the electrical longitudinal strength there are holes that are smaller than the diameter of the rod, and during fitting the skirts to the core of the skirt radially stretch and under axial pressure. Thus, an increased planar pressing in the gap is achieved and the electrical resistance is increased. In addition, it is proposed to provide the surface of the openings in the skirts with annular grooves for obtaining sealing elements, which can be enhanced by filling with grease. At the same time, the limitation of the skirts due to the use of radial tension and axial pressure has a negative effect, in particular, with the necessary change in the thickness of the material along the length of olor torus. The purpose of the invention is to overcome the drawbacks of the known solutions by proper method of manufacturing a plastic insulator. The invention is based on the task of ensuring the manufacture of a plastic insulator, which also with temperature drops and. high mechanical load has a high functional reliability of the features, under all conditions of operation, good electrical longitudinal strength of the boundary layer between the supporting rod and the layout of the skirts. According to the invention, the problem is solved in that an insulating carrier rod suitable for high mechanical loads is worn with a skirt of a dielectric or semiconductor elastic material, the diameter of the openings of which is larger than the diameter of the rod, and that they stretch in the axial direction so that the arrangement of the skirts and the bearing rod results in a radial, inward and dependent on the profile of the arrangement of the skirts, surface pressing, and the arrangement of the skirts in the axially stretched state is rigid and tight. at the ends of the rod and / or fittings with silovnm and / or the closure kaniem hermetic. The components of the skirt complex of the skirt elements between each other are tightly and rigidly glued together, vulcanized or welded. The connection of the ends of a complex of skirts with a bearing thread is realized by gluing, welding or inserting into a latch with anchoring during a positive-locking connection, and with a reinforcement - also by gluing or inserting into a latch with connecting elements with a positive-locking connection. After axial stretching of the skirt complex, fix the ends by Deforming the planted reinforcement, especially by isostatic pressing, and a force and geometric closure is obtained, and the ends of the skirt complex can be used as necessary as part of the elastic intermediate layer. The technology according to the invention guarantees the implementation of very different versions of the arrangement of the skirts and allowing it to achieve high electrical longitudinal strength of the boundary layer by surface pressing between the complex of elastic skirts and the material of the rod that performs the functions of high-voltage compaction. Such a state is maintained due to fixation under all operational loads, including mechanical tensile load and the resulting tension of the supporting rod, or the corresponding effect is enhanced. It is also possible to improve the electrical longitudinal strength of the boundary layer by introducing viscous insulating means into the gap between the skirt layout and the supporting rod, with the result that, according to the invention, axial tension and the resulting radial forces lead to an increase in pressure in the viscous insulating material and allow for better contact of the surface of the carrying rod with the skirts of the insulator. A skirt reinforced with fiberglass-reinforced epoxy resin is put on the supporting rod S (Fig. 1), consisting of several elastic skirt elements Sch 1, which at the connection point V are glued, cured or welded and whose openings are slightly larger than the diameter of the bearing the rod, and then with the help of an appropriate device, are stretched in the axial direction and in such a state at the ends K are glued or fixed with a positive fit to the bearing rod S, so that caused by stretching The relative inward boundary layer F causes the surface pressing between the rod 8 and the skirt complex to realize the high electrical longitudinal strength of the boundary layer, and Dp to improve the effect of viscous insulation mass can be applied to homogenize the surfaces on the support rod and / or on the surface holes in the complex skirt insulator. Then, reinforcing elements A are fitted by isostatic pressing, if necessary, with an elastic strip Z on the rod S in zone R. Another possibility of fixing the stretched complex of skirts is shown in FIG. [2] 2. Here, besides the connection K of the ends of the complex of skirts of the insulator with the rod /, the connection of X with the reinforcement A is realized through the skirt element Sch 2 with a geometric correspondence. In another example according to FIG. 3, it is shown that the elastic skirts of the insulator 1 / log are put on the rod. also j. in the form of a single arrangement or as a cylindrical sleeve ZS with Sch 3 skirt elements or in a spiral arrangement of skirts, and then stretched or fixed, In the examples according to Figs 2 and 3, the possibility of deformation of the reinforcement by isostatic pressing is shown to such an extent that as a result of this, fixation of the extended position of the isolator skirts occurs. Claim 1, A method of manufacturing a plastic insulator with a high electrical longitudinal strength of a boundary layer consisting of an insulator of a Hecytriero rod with power supply reinforcement and of a single or multicompact skirt complex made of elastic insulating or semiconductor material by putting on the complex of isolator skirts torus and subsequent axial forces, characterized in that the complex of skirts, the openings of which are larger than the diameter of the supporting rod, are stretched in the axial direction so that With a complex of skirts and a bearing rod, a radial, inwardly directed extrusion is obtained, and in the stretched state, the ends of the complex of insulator skirts are rigidly and tightly mechanically coupled to the rod with a reinforcement with a force and / or geometric closure. 2, the method according to claim 1, 1 and 2, and the fact that the elements included in the insulator skirt complex are firmly and firmly glued together, vulcanized or welded. 3, the Method according to PP. i and 2, characterized in that the connection of the ends of the complex of the isolator skirts with the rod is realized by gluing, welding or fixing in a mount with a geometric pattern, 4, Method according to claim 1, 1, 3 and 2 the fact that the ends of the complex of the skirts of the insulator are connected to the reinforcement by gluing or fixing in the connecting elements with geogratic closure, 5, Method according to claims 4, 1-3, the complex of the skirts of the insulator are connected to the complex of the skirts of the insulator with the rod by welding or gluing, and with the armature by gluing are or are fixed with a form fit. 6. Method according to any one of claims 1-3, characterized in that after axial stretching of the KOMnJjeKca insulator skirts, fixing at the ends is accomplished by deforming the mounted reinforcement, especially by isostatic pressing, and a connection is created with a force and non-symmetric closure of the torus, if necessary, be used as part of an elastic intermediate layer, recognized as a result of an examination carried out by the Office for the Invention of the German Democratic Republic, Fig 1
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同族专利:
公开号 | 公开日 DE2905150A1|1979-10-31| HU182655B|1984-02-28| DD139962A3|1980-01-30| GB2022328A|1979-12-12| IT1163983B|1987-04-08| GB2022328B|1982-08-04| FR2423847A1|1979-11-16| BG35582A1|1984-05-15| CS217429B1|1983-01-28| IT7948741D0|1979-04-13|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 JPS6131928B2|1979-11-17|1986-07-23|Ngk Insulators Ltd| JPS623531B2|1980-11-20|1987-01-26|Ngk Insulators Ltd| DE3214141C2|1982-04-14|1988-09-15|Interpace Corp., Parsippany, N.J., Us| WO2003023792A1|2001-09-12|2003-03-20|Obschestvo S Ogranichennoi Otvetstvennostyu Ooo Alfa Energo|High-voltage polymeric insulator| RU2291506C1|2006-03-10|2007-01-10|Закрытое Акционерное Общество "Арматурно-Изоляторный Завод"|Pin insulator| RU2446496C2|2007-10-08|2012-03-27|Абб Рисерч Лтд|Surface-modified electrical insulation system with improved tracking and erosion resistance| DE102008009333A1|2008-02-14|2009-08-20|Lapp Insulator Gmbh & Co. Kg|Field-controlled composite insulator|
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申请号 | 申请日 | 专利标题 DD20484078A|DD139962A3|1978-04-18|1978-04-18|METHOD FOR PRODUCING A PLASTIC INSULATOR| 相关专利
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