CN111682484A - Vibration and anti-dance damping spring spacer - Google Patents
Vibration and anti-dance damping spring spacer Download PDFInfo
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- CN111682484A CN111682484A CN202010417851.1A CN202010417851A CN111682484A CN 111682484 A CN111682484 A CN 111682484A CN 202010417851 A CN202010417851 A CN 202010417851A CN 111682484 A CN111682484 A CN 111682484A
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 105
- 238000013016 damping Methods 0.000 title claims abstract description 82
- 239000012212 insulator Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000016507 interphase Effects 0.000 description 15
- 239000004020 conductor Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
- H02G7/125—Damping spacers
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Abstract
本发明公开了一种减振防舞阻尼弹簧间隔棒，包括间隔绝缘子和分别固定连接在间隔绝缘子两端的间隔定位棒；所述间隔定位棒与间隔绝缘子端部通过减振防舞组件固定连接。本发明能更有效地减小输电线路发生舞动事故的概率，进而避免输电线路因舞动而造成的断线、跳闸、倒塔等事故，最终降低了输电线路舞动对电网的影响，提高了输电线路运行的可靠性和安全性。
The invention discloses a vibration-damping and anti-dancing damping spring spacer bar, which comprises a spacer insulator and spacer positioning rods respectively fixedly connected to both ends of the spacer insulator; The invention can more effectively reduce the probability of a galloping accident of the transmission line, thereby avoiding the disconnection, tripping, tower collapse and other accidents caused by the galloping of the transmission line, finally reducing the influence of the galloping of the transmission line on the power grid, and improving the transmission line Operational reliability and safety.
Description
技术领域technical field
本发明涉及一种减振防舞阻尼弹簧间隔棒,属于输电线路防振金具技术领域。The invention relates to a damping spring spacer bar for damping and anti-dancing, belonging to the technical field of anti-vibration fittings for transmission lines.
背景技术Background technique
间隔棒是指安装在分裂导线上，固定各分裂导线间的间距，以防止导线互相鞭击、抑制微风振动和次档距振荡的金具。间隔棒一股安装在档距中间，相隔50～60m安装个。二分裂、四分裂、六分裂、八分裂导线的间隔棒，分裂导线安装间隔棒后与无间隔棒的振动振幅比较，二分裂导线减小50%，四分裂导线减小87%，90%。The spacer bar is a metal fitting installed on the split wire to fix the spacing between the split wires to prevent the wires from whipping each other, suppress breeze vibration and secondary pitch oscillation. One spacer rod is installed in the middle of the span, and each is installed at a distance of 50-60m. For the spacer bars of the two-split, four-split, six-split, and eight-split conductors, the vibration amplitude of the split conductor after installing the spacer bar is reduced by 50% for the two-split conductor, and 87% and 90% for the four-split conductor.
间隔棒的类型分为阻尼型间隔棒及非阻尼型间隔棒。阻尼型间隔棒特点是：在间隔棒活动关节处利用橡胶作阻尼材料来消耗导线的振动能量，对导线振动产生阻尼作用。因此，该类间隔棒适用于各地区。但是，考虑到送电线路的经济性，该类间隔棒重点是用于导线容易产生振动的地区的线路。非阻尼间隔棒的消震性较差，可适用于不易产生振动地区的线路或用作跳线间隔棒。The types of spacers are divided into damping spacers and non-damping spacers. The characteristic of the damping spacer is that rubber is used as a damping material at the movable joint of the spacer to consume the vibration energy of the wire and damp the vibration of the wire. Therefore, this type of spacer is suitable for various regions. However, considering the economy of power transmission lines, this type of spacer is mainly used for lines in areas where the wires are prone to vibration. The non-damping spacer has poor shock absorption and can be used for lines in areas that are not prone to vibration or as a jumper spacer.
伴随输电线路舞动事故频发，常用的防舞装置为间隔棒。常规防舞间隔棒在使用一段时间后，存在相间间隔棒变形、弯曲等现象，分析发现此类现象是由普通相间间隔棒自身无法自我调整动荷载引起的。另外，普通相问间隔棒常忽略其端部连接金具转动的灵活性，易引起轴向转动困难，造成导线不均匀覆冰，进而减弱防止舞动效果。With the frequent occurrence of galloping accidents on transmission lines, the commonly used anti-dancing devices are spacers. After a period of use of conventional anti-dance spacers, there are phenomena such as deformation and bending of the interphase spacers. The analysis finds that such phenomena are caused by the inability of ordinary interphase spacers to adjust their dynamic loads themselves. In addition, the common interphase spacer often ignores the flexibility of the rotation of the connecting hardware at its end, which is easy to cause difficulty in axial rotation, resulting in uneven icing of the wire, thereby weakening the effect of preventing galloping.
因此，如何减少避雷器实验成本，并避免泄露电流试验误差过大造成对避雷器状态的误判成为急需解决的技术问题。Therefore, how to reduce the experimental cost of the arrester and avoid the misjudgment of the arrester state caused by the excessive leakage current test error has become a technical problem that needs to be solved urgently.
发明内容SUMMARY OF THE INVENTION
本发明所要解决的技术问题是提供一种减振防舞阻尼弹簧间隔棒，对常规相间间隔棒进行设计改进，使得相间间隔棒起到全方位防舞作用，达到子导线、相导线及金具连接部分联合防舞的目的。The technical problem to be solved by the present invention is to provide a vibration-damping and anti-dancing damping spring spacer bar, which improves the design of the conventional interphase spacer bar, so that the interphase spacer bar plays an all-round anti-dance function, and achieves the connection of the sub-conductor, the phase lead and the hardware. Part of the joint anti-dance purpose.
为解决上述问题，本发明所采取的技术方案是：In order to solve the above problems, the technical scheme adopted by the present invention is:
一种减振防舞阻尼弹簧间隔棒，包括间隔绝缘子和分别固定连接在间隔绝缘子两端的间隔定位棒；所述间隔定位棒与间隔绝缘子端部通过减振防舞组件固定连接。A vibration-damping and anti-dancing damping spring spacer bar comprises a spacer insulator and spacer positioning rods fixedly connected to both ends of the spacer insulator;
作为本发明的进一步改进，所述间隔定位棒包括间隔棒芯，固定连接在间隔棒芯上的两个绝缘挡块，以及固定套装绝缘挡块外侧间隔棒芯上的间隔棒绝缘层；As a further improvement of the present invention, the spacer positioning rod comprises a spacer rod core, two insulating blocks fixedly connected to the spacer rod core, and an insulating layer of the spacer rod on the spacer rod core outside the fixed sleeve insulating block;
所述间隔棒芯的两端分别固定连接有固定环。Two ends of the spacer core are respectively fixedly connected with fixing rings.
作为本发明的一种实施方式，所述间隔绝缘子的两端固定连接有用来固定连接减振防舞组件的螺纹连接套。As an embodiment of the present invention, two ends of the spacer insulator are fixedly connected with threaded connection sleeves for fixedly connecting the vibration damping and anti-dancing components.
作为本发明的进一步改进，所述减振防舞组件包括一端固定连接在位于两个绝缘挡块之间的间隔棒芯上的斜连件，通过铰接轴铰接在斜连件另一端上的调节连板。As a further improvement of the present invention, the vibration damping and anti-dance assembly includes an oblique connecting piece, one end of which is fixedly connected to the spacer rod core located between the two insulating blocks, and is hinged on the other end of the oblique connecting piece through a hinge shaft. even board.
作为本发明的进一步改进，所述调节连板的自由端固定设置有与螺纹连接套内螺纹相匹配的外螺纹，所述调节连板的自由端螺纹连接在螺纹连接套内。As a further improvement of the present invention, the free end of the adjusting connecting plate is fixedly provided with an external thread matching the internal thread of the threaded connection sleeve, and the free end of the adjusting connecting plate is threadedly connected in the threaded connecting sleeve.
作为本发明的进一步改进，所述斜连件的与水平面的倾斜夹角为45度。As a further improvement of the present invention, the inclined angle between the inclined connecting piece and the horizontal plane is 45 degrees.
作为本发明的另一种实施方式，所述减振防舞组件包括一端固定连接在两个绝缘挡块之间的间隔棒芯上的直连杆，固定连接在直连杆端部的第一固定板，一端固定连接在第一固定板上的阻尼弹簧件，以及固定连接在阻尼弹簧件另一端的第二固定板。As another embodiment of the present invention, the vibration damping and anti-dancing assembly includes a straight connecting rod, one end of which is fixedly connected to the spacer core between the two insulating blocks, and a first connecting rod that is fixedly connected to the end of the straight connecting rod. A fixing plate, a damping spring member fixedly connected to the first fixing plate at one end, and a second fixing plate fixedly connected to the other end of the damping spring member.
作为本发明的另一种实施方式，所述减振防舞组件包括一端固定连接在位于两个绝缘挡块之间的间隔棒芯上的斜连件，通过铰接轴铰接在斜连件另一端上的调节连板，固定连接在调节连板端部的第一固定板，一端固定连接在第一固定板上的阻尼弹簧件，以及固定连接在阻尼弹簧件另一端的第二固定板。As another embodiment of the present invention, the vibration damping and anti-dancing assembly includes an oblique connecting piece, one end of which is fixedly connected to the spacer rod core between the two insulating blocks, and the other end of the oblique connecting piece is hinged to the other end of the oblique connecting piece through a hinge shaft A first fixing plate fixedly connected to the end of the adjusting connecting plate, a damping spring member fixedly connected to the first fixing plate at one end, and a second fixing plate fixedly connected to the other end of the damping spring member.
作为本发明的进一步改进，所述第二固定板上固定连接有螺纹柱；As a further improvement of the present invention, a threaded column is fixedly connected to the second fixing plate;
所述螺纹柱螺纹连接在螺纹连接套内。The threaded column is threadedly connected in the threaded connection sleeve.
作为本发明的进一步改进，所述绝缘挡块和间隔棒绝缘层均采用绝缘橡胶材质。As a further improvement of the present invention, the insulating block and the insulating layer of the spacer are made of insulating rubber.
采用上述技术方案所产生的有益效果在于：The beneficial effects produced by the above technical solutions are:
本发明针对后期防舞改造中采用普通相间间隔棒时出现的弯曲、变形等问题，提供了一种减振防舞阻尼相间间隔棒。该相间间隔棒能更有效地减小输电线路发生舞动事故的概率，进而避免输电线路因舞动而造成的断线、跳闸、倒塔等事故，最终降低了输电线路舞动对电网的影响，提高了输电线路运行的可靠性和安全性。The invention provides a vibration-damping, anti-dance, and damping interphase spacer for the problems of bending, deformation and the like that occur when common interphase spacers are used in the later stage of anti-dance reconstruction. The interphase spacer can more effectively reduce the probability of galloping accidents in transmission lines, thereby avoiding accidents such as disconnection, tripping, and tower collapse caused by galloping transmission lines, ultimately reducing the impact of galloping transmission lines on the power grid and improving Reliability and safety of transmission line operation.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1是本发明实施例一减振防舞组件的结构示意图；1 is a schematic structural diagram of a vibration-damping and anti-dancing assembly according to an embodiment of the present invention;
图2是本发明实施例一的结构示意图；2 is a schematic structural diagram of Embodiment 1 of the present invention;
图3是本发明实施例二减振防舞组件的结构示意图；3 is a schematic structural diagram of a vibration-damping and anti-dancing assembly according to Embodiment 2 of the present invention;
图4是本发明实施例二的结构示意图；4 is a schematic structural diagram of Embodiment 2 of the present invention;
图5是本发明实施例三减振防舞组件的结构示意图；FIG. 5 is a schematic structural diagram of a vibration-damping and anti-dancing assembly according to Embodiment 3 of the present invention;
图6是本发明实施例三的结构示意图；6 is a schematic structural diagram of Embodiment 3 of the present invention;
图7是本发明普通相间间隔棒与实施例三的导线中点垂直方向的位移时程曲线图；Fig. 7 is the displacement time-history curve diagram of the vertical direction of the middle point of the conductor between the common interphase spacer of the present invention and the third embodiment;
图8是本发明普通相间间隔棒与实施例三的导线中点水平方向的位移时程曲线图。8 is a time-history curve diagram of displacement in the horizontal direction of the middle point of the conductor between the common interphase spacer bar and the third embodiment of the present invention.
其中：in:
10间隔绝缘子、20螺纹连接套、11间隔棒绝缘层、12固定环、13绝缘挡块、14间隔棒芯、21斜连件、22铰接轴、23调节连板、31直连杆、32第一固定板、33第二固定板、34阻尼弹簧件、35螺纹柱。10 Spacer insulators, 20 Threaded connection sleeves, 11 Spacer rod insulation, 12 Fixed rings, 13 Insulation blocks, 14 Spacer rod cores, 21 Oblique connecting pieces, 22 Hinged shafts, 23 Adjusting connecting plates, 31 Straight connecting rods, 32 No. A fixing plate, 33 a second fixing plate, 34 damping spring pieces, 35 threaded posts.
具体实施方式Detailed ways
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting.
因此，示例性实施例的其它示例可以具有不同的值。应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.
在本申请的描述中，需要理解的是，方位词如“前、后、上、下、左、右”、“横向、竖向、垂直、水平”和“顶、底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，在未作相反说明的情况下，这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作，因此不能理解为对本申请保护范围的限制；方位词“内、外”是指相对于各部件本身的轮廓的内外。In the description of this application, it should be understood that the orientations indicated by the orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and these orientations do not indicate or imply the indicated device or element unless otherwise stated. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.
实施例一Example 1
如图1和2所示，As shown in Figures 1 and 2,
一种减振防舞阻尼弹簧间隔棒，包括间隔绝缘子10和分别固定连接在间隔绝缘子10两端的间隔定位棒；所述间隔定位棒与间隔绝缘子10端部通过减振防舞组件固定连接。A vibration-damping and anti-dancing damping spring spacer bar includes a
进一步的，所述间隔定位棒包括间隔棒芯14，固定连接在间隔棒芯14上的两个绝缘挡块13，以及固定套装绝缘挡块13外侧间隔棒芯14上的间隔棒绝缘层11；Further, the spacer positioning rod includes a
所述间隔棒芯14的两端分别固定连接有固定环12。Two ends of the
进一步的，所述间隔绝缘子10的两端固定连接有用来固定连接减振防舞组件的螺纹连接套20。Further, two ends of the
进一步的，所述减振防舞组件包括一端固定连接在位于两个绝缘挡块13之间的间隔棒芯14上的斜连件21，通过铰接轴22铰接在斜连件21另一端上的调节连板23。Further, the vibration damping and anti-dancing assembly includes an
进一步的，所述调节连板23的自由端固定设置有与螺纹连接套20内螺纹相匹配的外螺纹，所述调节连板23的自由端螺纹连接在螺纹连接套20内。Further, the free end of the
进一步的，所述斜连件21的与水平面的倾斜夹角为45度，45度的斜连件21有抑制扭转舞动效果。Further, the inclined angle between the inclined connecting
进一步的，所述绝缘挡块13和间隔棒绝缘层11均采用绝缘橡胶材质。Further, the insulating
实施例二Embodiment 2
如图3和4所示，As shown in Figures 3 and 4,
一种减振防舞阻尼弹簧间隔棒，包括间隔绝缘子10和分别固定连接在间隔绝缘子10两端的间隔定位棒；所述间隔定位棒与间隔绝缘子10端部通过减振防舞组件固定连接。A vibration-damping and anti-dancing damping spring spacer bar includes a
进一步的，所述间隔定位棒包括间隔棒芯14，固定连接在间隔棒芯14上的两个绝缘挡块13，以及固定套装绝缘挡块13外侧间隔棒芯14上的间隔棒绝缘层11；Further, the spacer positioning rod includes a
所述间隔棒芯14的两端分别固定连接有固定环12。Two ends of the
进一步的，所述间隔绝缘子10的两端固定连接有用来固定连接减振防舞组件的螺纹连接套20。Further, two ends of the
进一步的，所述减振防舞组件包括一端固定连接在两个绝缘挡块13之间的间隔棒芯14上的直连杆31，固定连接在直连杆31端部的第一固定板32，一端固定连接在第一固定板32上的阻尼弹簧件34，以及固定连接在阻尼弹簧件34另一端的第二固定板34。Further, the vibration damping and anti-dancing assembly includes a
阻尼弹簧件34有一定的吸能减振特性，也能有效减小微风振动引起的振幅。The damping
进一步的，所述第二固定板34上固定连接有螺纹柱35；Further, a threaded
所述螺纹柱35螺纹连接在螺纹连接套20内。The threaded
进一步的，所述绝缘挡块13和间隔棒绝缘层11均采用绝缘橡胶材质。Further, the insulating
实施例三Embodiment 3
如图5和6所示，As shown in Figures 5 and 6,
一种减振防舞阻尼弹簧间隔棒，包括间隔绝缘子10和分别固定连接在间隔绝缘子10两端的间隔定位棒；所述间隔定位棒与间隔绝缘子10端部通过减振防舞组件固定连接。A vibration-damping and anti-dancing damping spring spacer bar includes a
进一步的，所述间隔定位棒包括间隔棒芯14，固定连接在间隔棒芯14上的两个绝缘挡块13，以及固定套装绝缘挡块13外侧间隔棒芯14上的间隔棒绝缘层11；Further, the spacer positioning rod includes a
所述间隔棒芯14的两端分别固定连接有固定环12。Two ends of the
进一步的，所述间隔绝缘子10的两端固定连接有用来固定连接减振防舞组件的螺纹连接套20。Further, two ends of the
进一步的，所述减振防舞组件包括一端固定连接在位于两个绝缘挡块13之间的间隔棒芯14上的斜连件21，通过铰接轴22铰接在斜连件21另一端上的调节连板23，固定连接在调节连板23端部的第一固定板32，一端固定连接在第一固定板32上的阻尼弹簧件34，以及固定连接在阻尼弹簧件34另一端的第二固定板34。Further, the vibration damping and anti-dancing assembly includes an
进一步的，所述斜连件21的与水平面的倾斜夹角为45度。Further, the inclination angle between the inclined connecting
本实施例中，阻尼弹簧件34有一定的吸能减振特性，也能有效减小微风振动引起的振幅，而45度斜连件21也有抑制扭转舞动效果，所以弹簧减振装置与45度斜连件结合达到了联合防舞效果，大幅提高了输电线路的运行安全性和可靠性。In this embodiment, the damping
进一步的，所述第二固定板34上固定连接有螺纹柱35；Further, a threaded
所述螺纹柱35螺纹连接在螺纹连接套20内。The threaded
进一步的，所述绝缘挡块13和间隔棒绝缘层11均采用绝缘橡胶材质。Further, the insulating
通过导线疲劳振动试验系统模拟导线的实际运行状态，并分析实施例三的防舞性能。由于输电线路导线舞动位移较大，因此可通过观察舞动垂直方向和水平方向的位移来判断舞动危害程度，进而判断减振防舞阻尼弹簧相间间隔棒的抑舞性能。The actual running state of the wire is simulated by the wire fatigue vibration test system, and the anti-dance performance of the third embodiment is analyzed. Since the galloping displacement of the conductors of the transmission line is large, the galloping damage degree can be judged by observing the vertical and horizontal displacements of the galloping, and then the galloping performance of the interphase spacers of the vibration-damping and anti-dancing damping springs can be judged.
借鉴ANSYS中的单点重启动分析模拟导线舞动，每计算一步提取一次结果，计算导线此时所受到的空气动力荷载后，对导线重新加载，此步骤重复多次，直至稳定状态。加载完毕后，分别提取暂态稳定后导线中点垂直方向和水平方向的位移数值，如图7和8所示。The single-point restart analysis in ANSYS is used to simulate the galloping of the wire. The results are extracted for each calculation step. After calculating the aerodynamic load on the wire at this time, the wire is reloaded. This step is repeated several times until it reaches a stable state. After the loading is completed, the displacement values in the vertical and horizontal directions of the midpoint of the conductor after transient stabilization are extracted, respectively, as shown in Figures 7 and 8.
通过模拟分析可知，安装减振防舞阻尼弹簧相间间隔棒时，导线振幅垂直方向和水平方向的位移比安装普通相问间隔棒时有明显减小，安装减振防舞阻尼弹簧相间间隔棒时导线两个方向的位移均较小。从而证明了减振防舞阻尼弹簧相间间隔棒较普通相间间隔棒在防舞性能方面优越。Through the simulation analysis, it can be seen that when the interphase spacers of the vibration-damping and anti-dancing damping springs are installed, the displacement of the conductor amplitude in the vertical and horizontal directions is significantly reduced compared with that when the ordinary interphase spacers are installed. The displacement of the wire is small in both directions. Therefore, it is proved that the anti-dance performance of the damping and anti-dancing spring interphase spacer is superior to that of the common interphase spacer.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；作为本领域技术人员对本发明的多个技术方案进行组合是显而易见的。而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; it is obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
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Application publication date: 20200918 |