WO2014048068A1 - 百万伏隔离开关主导电管及其制造方法 - Google Patents

百万伏隔离开关主导电管及其制造方法 Download PDF

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Publication number
WO2014048068A1
WO2014048068A1 PCT/CN2013/001166 CN2013001166W WO2014048068A1 WO 2014048068 A1 WO2014048068 A1 WO 2014048068A1 CN 2013001166 W CN2013001166 W CN 2013001166W WO 2014048068 A1 WO2014048068 A1 WO 2014048068A1
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Prior art keywords
main
conductor
welded
mandrel
welding
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PCT/CN2013/001166
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English (en)
French (fr)
Inventor
李宇鹏
胡延涛
马永旭
孙玉洲
陈思远
李凯
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PING GAO GROUP CO Ltd
Henan Pinggao Electric Co Ltd
State Grid Corp of China SGCC
Original Assignee
PING GAO GROUP CO Ltd
Henan Pinggao Electric Co Ltd
State Grid Corp of China SGCC
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Publication of WO2014048068A1 publication Critical patent/WO2014048068A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/023—Base and stationary contacts mounted thereon

Definitions

  • the present invention relates to the field of millions of volt isolation barrier devices, and more particularly to a one-million-volt isolation master conductive tube and a method of fabricating the same.
  • the conductive tubes of the products below 5.5 million volts generally use the whole conductive tube, and the upper part is added with the upper and lower splints for fixing, but the full length of the one-volt isolation switch conductive tube reaches 13 meters, which has exceeded the length of the existing raw materials by 6 meters, and the outer diameter.
  • ⁇ 185 mm, weight 195 kg the parts are used harshly, the overall straightness requirement is less than or equal to 5 mm, and there are angle requirements between the five planes.
  • An object of the present invention is to provide a method for manufacturing a main conductive tube of a million-volt isolation switch and an assembly structure of the main conductive tube, which can solve the problem that the prior art cannot process a million-volt isolation conductive with a large length. The problem with the tube.
  • the conductive tube solution of the present invention is: a one-million-volt isolation switch main conductive tube, which is formed by coaxial welding of a first conductor and a second conductor at both ends of the mandrel and the mandrel, the core
  • a main welded pipe and a main welded bushing with a plug sleeve are disposed at two ends of the shaft and the corresponding welding portion of the first conductor, the second conductor and the mandrel, and the main welding sleeve is provided with a main plunger welding hole
  • the welded pipe and the main welded bushing are welded and matched by the main plunger welding hole.
  • the first conductor and the second conductor are respectively coaxially welded by two connecting rods, and the welding joint between the connecting rod and the corresponding connecting rod is respectively provided with a sub-welding tube and a sub-welding sleeve which are matched by a socket,
  • the auxiliary welding sleeve is provided with a secondary plunger welding hole, and the auxiliary welding tube and the secondary welding sleeve are welded and matched by the secondary plunger welding hole.
  • the first conductor and the second conductor are both equipped with a main finger and an auxiliary finger, and the mandrel is worn on the mandrel.
  • the method of the present invention is: a method for manufacturing a main conductive tube of a detachment switch, the steps are as follows: 1) manufacturing a first conductor, a second conductor and a mandrel; at both ends of the mandrel and the first conductor, a connecting end of the second conductor and the mandrel is formed with a main welded pipe and a main welded bushing for mating welding, and a main plunger welding hole is formed on the main welded bushing; 2) the first conductor, the mandrel, the first The two conductors are welded together and assembled.
  • the first conductor and the second conductor are fabricated as follows: First, two connecting rods are manufactured, and then respectively connected in two
  • One end of the post is machined with a sub-welded tube and a sub-welded sleeve for inserting the sleeve, a secondary plunger is formed on the sub-welded sleeve, and finally the two connecting rods are passed through the sub-welded tube and the sub-joint Pipe socket, welding.
  • the invention adopts the segment processing, and then the welding assembly method to manufacture the conductive tube with large length, overcomes the current situation that the raw material cannot be purchased, and solves the high-precision processing requirement of the part, and reduces the dependence on the device. High-precision machining of parts is possible without the need for very large equipment.
  • the segmentation processing is completed, it is combined, welded, polished and surface treated to ensure the strength and shape tolerance of the parts, so that the overall straightness, position and roughness of the parts meet the requirements for use.
  • the installation and commissioning of Wanfu isolation products bring great convenience.
  • the conductors at both ends of the mandrel are manufactured by a segmented machining method, and the accuracy of the parts is improved.
  • FIG. 1 is a structural view of a main conductive tube of the present invention
  • Figure 2 - Figure 6 Various cross-sectional views in Figure 1;
  • Figure 8 Sectional view in Figure 7;
  • Figure 9 First conductor structure diagram
  • Figure 10 Sectional view in Figure 9;
  • Figure 11 Structure diagram of the first connecting rod
  • Figure 12 - Figure 13 Sectional views in Figure 11;
  • Figure 14 Structure diagram of the second connecting rod
  • Figure 15 is an exploded view showing the implementation process of Embodiment 2 of the present invention.
  • Figure 16 An exploded view of the implementation of Embodiment 1;
  • Figure 17 Schematic diagram of a single pole isolation switch
  • Figure 18 Overall assembly drawing of the conductive tube.
  • a one-million-volt isolation switch main conductive tube is formed by coaxial welding of a first conductor and a second conductor at both ends of a mandrel and a mandrel, and both ends of the mandrel and corresponding welding of the first conductor and the second conductor and the mandrel
  • the main welded pipe and the main splicing sleeve are matched with a socket, and the main welding ferrule is provided with a main plunger welding hole.
  • Figure 16 a method for manufacturing a main conductive tube of a one-million-volt isolation switch, the steps are as follows: 1) manufacturing a first conductor, a second conductor Machining separately from the mandrel; machining the main welded pipe and the main welded bushing for the mating welding at both ends of the mandrel and the connecting end of the first conductor, the second conductor and the mandrel, on the main welded bushing
  • the main plunger is welded; 2)
  • the first conductor, the mandrel and the second conductor are welded together and assembled.
  • a main conductive tube of a one-million-volt isolating switch As shown in FIG. 1 to FIG. 15, a main conductive tube of a one-million-volt isolating switch, the first mandrel of the mandrel 3 and the two ends of the mandrel are coaxially welded with the second conductor, the two ends of the mandrel and the first conductor,
  • the corresponding welding portion of the two conductors and the mandrel 3 is provided with a main welded pipe 10 and a main welded bushing 1 which are fitted with a plug sleeve, and the main welded bushing 11 is provided with a main plunger welding hole.
  • the first conductor and the second conductor are each formed by coaxial welding of two connecting rods.
  • the first connecting rod 1 and the second connecting rod 2 are included, and the welded joint between the two connecting rods is respectively provided with a socket-fitted auxiliary nipple 20 and a secondary welded sleeve 21, and the secondary welded sleeve 21 is provided with a secondary plunger welding hole.
  • a method for manufacturing a main conductive tube of a one-million-volt isolation switch the steps are as follows: 1) manufacturing a mandrel, two connecting rods of a first conductor, and two connecting rods of a second conductor; as shown in Fig. 7, at both ends of the mandrel 3 Machining the main welded pipe 10; as shown in Fig.
  • the first connecting rod 1 of the first conductor is machined with the sub-welded pipe 20 at one end
  • the second connecting rod 2 of the first conductor is the end-processed sub-welded bushing 21, and the other end is processed by the main welded bushing Tube 11
  • the main welding sleeve 11 and the secondary welding sleeve 21 are processed with the plunger welding hole
  • the second conductor is the same
  • the tooling is used to weld the connecting rod to form the first conductor and the second conductor to ensure straightness Within 2 mm
  • 3) Final assembly from bottom to top, the first conductor, mandrel 3, and second conductor are assembled and placed on the welding platform.
  • the welding platform has been corrected by the electronic image level, and the height difference is not More than 0.1 mm.
  • the angle relationship of the plane position of the above three parts should be considered.
  • riveting use the angle ruler to check.
  • welding adjust the height of the V-shaped iron to ensure that the center and the two ends are at the same height, and the upper and lower errors are less than 1 mm.
  • After riveting rotate 90 degrees, measure the height of the center and both ends, control the height difference within 1 mm, and then weld it to control the overall straightness within 3 mm.
  • the welded parts are corrected and the appearance is polished.
  • the above "rive" the term is commonly used in welding, refers to the scribing on the parts that need to be welded before welding, or the positioning of the welded parts with the tooling, and the correction of some easily deformable parts.
  • riveters are used to measure the dimensions when welding. Workers engaged in riveting.
  • FIG. 17 is a general assembly diagram of a single pole isolation switch.
  • the center of the main conductive tube is rotatably assembled on the middle of the porcelain column, and is in the illustrated position when the switch is closed. From opening to closing, the conductive tube rotates in the middle of the vertical porcelain bottle in the horizontal plane, and is converted to a flipping motion along the center of the conductive tube when it is closed.
  • Figure 18 is the total assembly of the conductive tube, shown in the closing state, at this time the main finger is in the working state, the auxiliary finger has been Get rid of the effect.
  • the main contact mounting surface 101 at both ends of the main conductive tube is used to mount the main contact 406, and the auxiliary finger mounting surface 102 is used to mount the auxiliary contact 407.
  • the mounting plane 301 on the mandrel is used to mount the ball and socket joint 410 and the buffer spring system 412, and the positions of the 101, 102, 301 are related to the opening and closing.
  • the main finger 406 and the auxiliary finger 407 are in a "convex" shape and are fixed to the mounting surface by bolts 402.
  • the main contact and the auxiliary contact are electrically coupled to the static contacts on the porcelain posts at both ends of FIG. 17 when they are closed.
  • the equalizing ring 408 is installed at both ends of the mandrel; the shielding ring 401 is installed at both ends of the main conductive tube; the casing 414 is worn on the mandrel, and the fitting portion is provided with a sleeve 409; the supporting blocks 411, 413 are respectively mounted on the buffer spring system 412 , spherical joint 410 and between the mandrel.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Switches (AREA)

Abstract

一种百万伏隔离开关主导电管及其制造方法，该百万伏隔离开关主导电管由心轴（3）及心轴两端的第一导体与第二导体同轴焊接构成，该心轴的两端及第一导体、第二导体与心轴的对应焊接处设有插套配合的主焊接管（10）和主焊接套管（11），该主焊接套管上开设有主柱塞焊孔，主焊接管与主焊接套管通过主柱塞焊孔焊接配合。该百万伏隔离开关主导电管长度大，通过分段加工、然后焊接组装的方式制造，降低了对设备的依赖性，并且满足了零件局部的高精度加工要求。

Description

百万伏隔离开关主导电管及其制造方法 技术领域
[0001] 本发明涉及百万伏隔离丌关设备领域， 特别是百万伏隔离丌关主导电管及其制造成 型方法。
背景技术
[0002】 随着国家电力市场的不断发展和壮大， 高电压大电流输变电产品成为电力市场的主 导产品， 百万伏系列产品的需求量不断增加。 主导电管焊装质量决定了整台产品的性能， 在 分合闸中起到重要作用， 如直线度超差， 就使得刀闸不能准确达到预定位置， 造成合闸困 难， 影响正常的电网供电， 给现场调试带来较大的困难。 目前 550万伏以下产品的导电管一 般采用整根导电管， 中间部位增加上下夹板进行固定， 但百万伏隔离开关导电管全长达 13 米， 已超过现有原材料的长度 6米， 外径 Φ 185毫米,重量 195 公斤,此零件使用条件苛刻，总 体直线度要求小于等于 5 毫米,且五个平面之间还有角度要求， 中间部位有两处外圆需要加 工， 且同轴度要求较严， 现有主导电杆生产方法不适合百万伏隔离开关的主导电管。
发明内容
[0003] 本发明的目的是提供一种百万伏隔离开关主导电管制造方法及这种主导电管的装配 结构， 用以解决现有技术无法加工长度较大的百万伏隔离丌关导电管的问题。
[0004] 为实现上述目的， 本发明的导电管方案是： 一种百万伏隔离开关主导电管， 由心轴 及心轴两端的第一导体与第二导体同轴焊接构成， 所述心轴的两端及第一导体、 第二导体与 心轴的对应焊接处设有插套配合的主焊接管和主焊接套管， 所述主焊接套管上开设有主柱塞 焊孔， 主焊接管与主焊接套管通过主柱塞焊孔焊接配合。
[0005] 所述第一导体、 第二导体均 两个连接杆同轴焊接构成， 连接杆与对应的连接杆之 间的焊接处分别设有插套配合的副焊接管与副焊接套管， 所述副焊接套管上丌设有副柱塞焊 孔， 副焊接管与副焊接套管通过副柱塞焊孔焊接配合。
[0006] 所述第一导体、 第二导体上均装配有主触指与辅助触指， 心轴上穿装箱体。
[0007] 本发明的方法方案是： 一种百力.伏隔离开关主导电管制造方法， 步骤如下： 1 ) 制造 第一导体、 第二导体与心轴； 在心轴两端及第一导体、 第二导体与心轴的连接端加工出用于 插配焊接的主焊接管与主焊接套管， 在主焊接套管上开设主柱塞焊孔； 2 ) 将第一导体、 心 轴、 第二导体焊接起来， 总装成型。
[0008] 所述第一导体与第二导体的制作过程如下： 首先制造两根连接杆， 然后分别在两连
1
确认本 接杆的一端加工出用于插套配合的副焊接管与副焊接套管， 在副焊接套管上开设副柱塞焊 孔， 最后将两连接杆通过所述副焊接管与副悍接套管插套、 焊接。
[0009] 本发明的采用分段加工， 然后焊接组装的方式制造长度大的导电管， 克服了无法购 买原材料的现状， 并且解决了零件局部的高精度加工要求， 降低了对设备的依赖性， 不需要 超大型设备也可以对零件进行高精密的加工。 分段加工完成后又将其进行组合、 焊接、 打 磨、 表面处理， 保证了零件的强度和形位公差的要求， 使得零件整体的直线度、 位置度、 粗 糙度均满足了使用要求， 为百万伏隔离丌关产品的安装、 调试带来极大的方便。
[0010] 将心轴两端的导体采用分段加工方式制造， 进一歩提高了零件局部的精度。
附图说明
[0011] 图 1 : 本发明的主导电管结构图；
图 2-图 6: 图 1中各截面视图；
图 7: 心轴结构图；
图 8: 图 7中截面视图；
图 9: 第一导体结构图；
图 10: 图 9中截面视图；
图 11 : 第一连接杆结构图；
图 12-图 13 : 图 11中各截面视图；
图 14: 第二连接杆结构图；
图 15 : 本发明实施例 2实施过程的分解图；
图 16: 实施例 1的实施过程分解图；
图 17: 单极隔离开关示意图；
图 18: 导电管总装配图。
具体实施方式
[0012] 下面结合附图对本发明做进一歩详细的说明。
[0013] 导电管实施例 1
一种百万伏隔离开关主导电管， 由心轴及心轴两端的第一导体与第二导体同轴焊接构成， 心 轴的两端及第一导体、 第二导体与心轴的对应焊接处设有插套配合的主焊接管和主悍接套 管， 所述主焊接套管上开设有主柱塞焊孔。
[0014] 导电管制造方法实施例 1
如图 16， 一种百万伏隔离开关主导电管制造方法， 歩骤如下： 1 ) 制造第一导体、 第二导体 与心轴， 分别进行加工； 在心轴两端及第一导体、 第二导体与心轴的连接端加工出用于插配 焊接的主焊接管与主焊接套管， 在主焊接套管上幵设主柱塞焊孔； 2 ) 将第一导体、 心轴、 第二导体焊接起来， 总装成型。
[0015] 导电管实施例 2
如图 1-图 15， 一种百万伏隔离开关主导电管， ώ心轴 3 及心轴两端的第一导体与第二导体 同轴焊接构成， 心轴的两端及第一导体、 第二导体与心轴 3的对应焊接处设有插套配合的主 焊接管 10和主焊接套管 1 1， 主焊接套管 11上丌设有主柱塞焊孔。
[0016] 第一导体、 第二导体均由两个连接杆同轴焊接构成。 以第一导体为例， 包括第一连 接杆 1 与第二连接杆 2， 两连接杆之间的焊接处分别设有插套配合的副悍接管 20与副焊接 套管 21， 副焊接套管 21上开设有副柱塞焊孔。
[0017] 导电管制造方法实施例 2
一种百万伏隔离开关主导电管制造方法， 歩骤如下： 1 ) 制造心轴、 第一导体的两个连接 杆、 第二导体的两个连接杆； 如图 7， 在心轴 3 两端加工主焊接管 10; 如图 11， 第一导体 的第一连接杆 1 一端加工副焊接管 20， 第一导体的第二连接杆 2—端加工副焊接套管 21， 另一端加工主焊接套管 11， 主焊接套管 11 与副焊接套管 21 上均加工柱塞焊孔； 第二导体 同理； 2 ) 用工装定位， 将连接杆焊接构成第一导体、 第二导体， 保证直线度在 2 毫米之 内； 3 ) 自下向上进行总装， 将第一导体、 心轴 3、 第二导体进行总装， 放到焊接平台上， 因焊接平台已用电子合像水平仪进行校正， 高度差不超过 0.1 毫米。 此时要考虑以上三种零 件的平面位置角度关系， 铆装时用角度尺进行复査， 焊接时调整 V 型铁的高低， 保证中心 及两端在同一高度内， 上下误差不超过 1 毫米， 铆装后旋转 90度， 再对中心及两端高度进 行测量， 高度差控制在 1毫米之内， 然后进行焊接， 控制总体的直线度在 3毫米之内。 最后 对焊接部位进行校正， 外观打磨。 上述 "铆装" -- -这个词常用在焊接方面， 指的是在焊接前 在需要焊接的零件上进行划线， 或用工装对焊接的零件进行定位， 对一些易变形的零件进行 校正， 然后将需要焊接的零件进行找正对接， 并进行点焊 （只焊接局部几个定位点）， 并对 点焊之后的位置进行测量的一个过程。 经过铆装的零件， 焊接时不需进行对尺寸进行测量。 从事铆装的工人， 称为铆工。
[0018] 如图 17 是单极隔离丌关的总装配图， 主导电管中心转动装配在中间的瓷柱上， 在合 闸时处于图示位置。 从分闸到合闸时， 导电管在水平面沿中间竖直瓷瓶作旋转运动， 即将合 闸时转换为沿导电管自己的中心作翻转运动。
[0019] 如图 18 为导电管总装配， 图示为合闸状态， 此时主触指处于工作状态， 辅助触指己 完成作用而脱丌。 如图 1 中， 主导电管两端的主触指安装面 101用于安装主触指 406， 辅助 触指安装面 102用于安装辅助触指 407。 图 7中， 心轴上的安装平面 301用于安装球形万向 节 410和缓冲弹簧系统 412， 101、 102、 301 所处的位置与分合闸有关系。 主触指 406、 辅 助触指 407呈 "凸"形， 通过螺栓 402固定在安装面上。 主触指、 辅助触指与图 17中两端 瓷柱上的静触头在合闸时形成电联接。 均压环 408安装在心轴两端； 屏蔽环 401安装在主导 电管两端； 箱体 414 穿装在心轴上， 装配部分设有轴套 409; 支撑块 411、 413 分别安装在 缓冲弹簧系统 412、 球形万向节 410和与心轴之间。

Claims

WO 2014/048068 权 利 要 求 书 PCT/CN2013/001166
1. 一种百万伏隔离开关主导电管， 其特征在于， 由心轴及心轴两端的第一导体与第二导体 同轴焊接构成， 所述心轴的两端及第一导体、 第二导体与心轴的对应焊接处设有插套配合的 主焊接管和主焊接套管， 所述主焊接套管上开设有主柱塞焊孔， 主焊接管与主焊接套管通过 主柱塞焊孔焊接配合。
2. 根据权利要求 1所述的一种百万伏隔离开关主导电管， 其特征在于， 所述第一导体、 第 二导体均由两个连接杆同轴焊接构成， 连接杆与对应的连接杆之间的悍接处分别设有插套配 合的副焊接管与副焊接套管， 所述副焊接套管上丌设有副柱塞焊孔， 副焊接管与副焊接套管 通过副柱塞焊孔悍接配合。
3. 根据权利要求 2所述的一种百力-伏隔离幵关主导电管， 其特征在于， 所述第一导体、 第 二导体上均装配有主触指与辅助触指， 心轴上穿装箱体。
4. 一种百万伏隔离开关主导电管制造方法， 其特征在于， 歩骤如下： 1 ) 制造第一导体、 第 二导体与心轴； 在心轴两端及第一导体、 第二导体与心轴的连接端加工出用于插配焊接的主 焊接管与主焊接套管， 在主焊接套管上丌设主柱塞焊孔； 2 ) 将第一导体、 心轴、 第二导体 悍接起来， 总装成型。
5. 根据权利要求 4所述的百万伏隔离开关主导电管制造方法， 其特征在于， 所述第一导体 与第二导体的制作过程如下： 首先制造两根连接杆， 然后分别在两连接杆的一端加工出用于 插套配合的副焊接管与副焊接套管， 在副焊接套管上开设副柱塞焊孔， 最后将两连接杆通过 所述副焊接管与副焊接套管插套、 焊接。
PCT/CN2013/001166 2012-09-28 2013-09-26 百万伏隔离开关主导电管及其制造方法 Ceased WO2014048068A1 (zh)

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