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WO2014044023A1 - 一种高压断路器及其操动机构 - Google Patents

一种高压断路器及其操动机构 Download PDF

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Publication number
WO2014044023A1
WO2014044023A1 PCT/CN2013/001104 CN2013001104W WO2014044023A1 WO 2014044023 A1 WO2014044023 A1 WO 2014044023A1 CN 2013001104 W CN2013001104 W CN 2013001104W WO 2014044023 A1 WO2014044023 A1 WO 2014044023A1
Authority
WO
WIPO (PCT)
Prior art keywords
crankshaft
voltage circuit
circuit breaker
connecting rod
movable contact
Prior art date
Application number
PCT/CN2013/001104
Other languages
English (en)
French (fr)
Inventor
黄瑜珑
金光耀
吴军辉
张高潮
武可
程铁汉
李艳
Original Assignee
国家电网公司
河南平高电气股份有限公司
平高集团有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 国家电网公司, 河南平高电气股份有限公司, 平高集团有限公司 filed Critical 国家电网公司
Publication of WO2014044023A1 publication Critical patent/WO2014044023A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism

Definitions

  • the present invention relates to the field of high voltage electrical technology, and more particularly to a high voltage circuit breaker, and also relates to an operating mechanism of the high voltage circuit breaker.
  • Chinese Patent Application No. 200810010510.2 discloses a high-speed circuit breaker rotating servo motor operating mechanism, which uses a rotating electric machine to drive a link mechanism to rotate, and then through the link mechanism to pull the arm to rotate, through
  • the moving contact insulation rod of the single arm of the high-voltage circuit breaker is controlled to realize the control of the split/close action of the high-voltage circuit breaker, and the corresponding split/close action of the high-voltage circuit breaker respectively corresponds to the movable contact insulating rod
  • the reciprocating motion, and the reciprocating motion of the movable contact insulating rod corresponds to the forward/reverse rotation of the arm, and the forward/reverse rotation of the arm corresponds to the forward/reverse rotation of the rotating machine, but due to the high voltage
  • the forward/reverse rotation of the rotary motor and the forward/reverse rotation of the arm increase the fatigue damage of the various operating elements of the operating mechanism of the high-voltage circuit breaker, resulting in
  • the present invention provides a high-voltage circuit breaker with reliable operation and long service life, and also provides an operating mechanism of the high-voltage circuit breaker, which aims to solve the problem of short service life and reliable operation of the high-voltage circuit breaker in the prior art. Poor sex.
  • a high-voltage circuit breaker comprising three high-voltage circuit breakers, a movable contact insulating rod for moving the movable contact of the high-voltage circuit breaker unit, and an operating mechanism for pulling the insulating rod, the operation
  • the mechanism includes a power unit having an output end for outputting a rotational torque, and the output end of the power unit and the movable contact insulating rod are connected by a transmission mechanism disposed therebetween, the transmission mechanism
  • a crankshaft including a drive coupled to an output of the power unit drive, the crankshaft having a main journal disposed coaxially with the output of the power unit and a bias between the adjacent two main journals at the output of the power unit a connecting rod neck for moving the movable contact insulating rod of the three high-voltage circuit breakers at one side of the axis, and the movable contact insulating rod is rotated around the axis of the connecting rod of the crankshaft to be assembled on the crankshaft On the outer circumference of the neck.
  • the main journal of the crankshaft includes an interphase link between an output end of the power unit and the movable contact insulating rod and between two adjacent movable contact insulating rods, and the connecting rod neck of the crankshaft includes a phase
  • the cranks respectively disposed at opposite ends of the adjacent two interphase links and the connecting rods disposed between the adjacent two cranks.
  • the connecting portion of the movable contact insulating tie rod and the connecting rod neck of the crankshaft is provided with a crank box for defining a radial position of the crankshaft, and the connecting rod neck of the crankshaft is in the arm box and is turned
  • An opening for the main journal of the crankshaft to pass through is formed in the peripheral wall of the arm case.
  • the power device is an electric motor, and the power device is controlled to be connected with a control device for controlling the operation of the motor.
  • crankshaft is provided with three connecting rods which are arranged in one-to-one correspondence with the movable contact insulating rods of the three high-voltage circuit breakers.
  • An operating mechanism of a high-voltage circuit breaker includes a power device, the power device has an output end for outputting a rotational torque, and an output end of the power device is connected with a transmission for driving connection with the movable contact insulating rod Mechanism, the transmission mechanism includes a crankshaft that is drivingly coupled to an output end of the power unit drive, the crankshaft having a main journal disposed coaxially with the output end of the power unit and an offset between the adjacent two main journals a connecting rod neck of one side of the rotation axis of the output end of the power device for pulling the movable contact insulating rods of the three high-voltage circuit breakers at the same time, the moving contact insulating rod is around the axis of the connecting rod neck of the crankshaft The rotation is fitted on the outer circumference of the connecting rod neck of the crankshaft.
  • the main journal of the crankshaft includes an interphase link for being disposed between an output end of the power unit and the movable contact insulating rod and between two adjacent movable contact insulating rods, the connecting rod of the crankshaft
  • the neck includes a crank respectively disposed at opposite ends of two adjacent phase-to-phase links and a link disposed between adjacent two cranks.
  • a joint of the connecting rod neck of the crankshaft for connecting with the movable contact insulating tie rod is provided with a crank box for defining a radial position of the crankshaft, and the connecting rod neck of the crankshaft is in the arm box And opening an opening for the main journal of the crankshaft to pass through the peripheral wall of the arm box.
  • the power device is an electric motor, and the power device is controlled to be connected with a control device for controlling the operation of the motor.
  • crankshaft is provided with three connecting rod necks arranged in one-to-one correspondence with the movable contact insulating rods of the three high-voltage circuit breakers.
  • the present invention drives the movable contact insulating rod of the high voltage circuit breaker by the crankshaft, wherein the main shaft of the crankshaft is connected to the output end of the power device to input the rotating torque to the entire crankshaft, and the moving contact is insulated.
  • the pull rod is rotatably mounted on the connecting rod neck of the crankshaft so that the moving contact insulating rod can be pushed and pulled at the connecting rod neck of the crankshaft during the rotation of the crankshaft
  • the reciprocating motion is performed in the single unit of the high-voltage circuit breaker, and the movable contact insulating rods of the three high-voltage circuit breakers are simultaneously operated, thereby driving the high-voltage circuit breaker to perform the split/close motion by the rotation of the crankshaft, so
  • the power unit and the crankshaft are always rotated in a direction, which is different from the prior art, in which the rotating electric machine and the arm need to be rotated in the forward/reverse direction, thereby solving the prior art high-voltage disconnection.
  • the problem is that the service life is short and the work reliability is poor.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • the high voltage circuit breaker includes three high voltage circuit breaker units 1 arranged side by side and a division/closing unit for controlling the high voltage circuit breaker unit 1.
  • the operating mechanism 2 of the gate action wherein the high-voltage circuit breaker unit 1 is provided with a movable contact insulating rod 1-1 for moving the movable contact of the high-voltage circuit breaker unit 1; the operating mechanism 2 ⁇ the power unit 2 -1 and a transmission mechanism 2-2 provided between the power unit 2-1 and the movable contact insulating rod 1-1, wherein the power unit 2-1 is an electric motor capable of outputting a rotational torque, and is in the power unit 2 1
  • the upper control connection is provided with a control device 2-3 for controlling the operation of the power unit 2-1;
  • the transmission mechanism 2-2 is constituted by a crankshaft 2-4 having a coaxial arrangement with the output end of the power unit 2-1
  • the main journal 2-5 and the connecting rod neck 2-6 on one side of the rotational axis of the output end of the power unit 2-1 between the adjacent main journals 2-5, the main shaft of the crankshaft 2-4
  • the neck 2-5 is provided at the output end of the power unit 2-1 and the
  • the movable contact insulating rod 1-1 is rotatably mounted around the outer circumference of the connecting rod neck 2-6 of the crankshaft 2-4 around the axis of the connecting rod neck 2-6 of the crankshaft 2-4, and the movable contact insulating rod 1-1
  • a crank box 2-7 for defining the radial position of the crankshaft
  • the connecting rod neck 2-6 of the crankshaft 2-4 is in the arm box 2-7
  • the peripheral wall of the arm box 2-7 is provided with an opening through which the main journal 2-5 of the crankshaft 2-4 passes.
  • the present invention uses the 360 degree rotation of the motor to directly drive the opening/closing action of the high voltage circuit breaker, that is, the motor moves from 0 degrees to 180 degrees and from 180 degrees to 360 degrees respectively. Brake operation and opening operation; The motor and the interphase link always move in one direction during the closing and opening process. When the phase connecting rod moves in the same direction during the closing and opening operations, the three-phase synchronization of the closing and opening can be improved, so the invention improves the working conditions of the operating mechanism and the interphase connecting rod, and reduces The mechanical fatigue of the corresponding components can improve the mechanical life and reliability of the circuit breaker, which is of great significance to improve the technical and economic level of the circuit breaker, and has practical application prospects.
  • crankshaft and the inter-phase link, the crank and the connecting rod are formed.
  • the crankshaft may also be a one-piece structure similar to the crankshaft of the automobile engine.
  • the power unit is an electric motor, and in other embodiments, the electric motor may be replaced with an automobile engine.
  • the crankshaft has three connecting rod necks.
  • the number of the connecting rod necks on the crankshaft may also be one or two or more than three, correspondingly, on the crankshaft.
  • the connecting rod neck is one, the moving contact insulating rods of the three high-voltage circuit breakers are rotatably assembled on the same connecting rod neck; when the connecting rod neck of the crankshaft is two, the three high-voltage circuit breakers are single Two of the contact insulating tie rods share a connecting rod neck; when the number of the connecting rod necks on the crankshaft is more than three, the movable contact rods of the three high-voltage circuit breakers are selectively rotated and assembled in the three Connecting rod neck.
  • Embodiment of the operating mechanism of the high-voltage circuit breaker of the present invention As shown in FIG. 1, the specific structure of the operating mechanism has been described in the above embodiment, and therefore will not be described in detail in this embodiment.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

一种高压断路器及其操动机构，通过曲轴带动高压断路器单体的动触头绝缘拉杆动作，曲轴的主轴颈传动连接在动力装置的输出端以使动力装置向整个曲轴输入转动扭矩，动触头绝缘拉杆转动装配在曲轴的连杆颈上以使曲轴在转动的过程中动触头绝缘拉杆能够在曲轴的连杆颈的推拉作用下在高压断路器单体内做往复运动，牵动三个高压断路器单体的动触头绝缘拉杆同时动作，从而通过曲轴的转动带动高压断路器单体做分/合闸运动，因此在高压断路器在分/合闸运动时，动力装置和曲轴始终在一个旋向转动，不同于旋转电机和拐臂需要正/反向转动的形式，进而解决了高压断路器使用寿命短、工作可靠性差的问题。

Description

一种高压断路器及其操动机构 技术领域
[0001] 本发明涉及高压电气技术领域， 尤其涉及一种高压断路器， 同时还涉及该高压断路 器的操动机构。
背景技术
[0002] 从国内外高压断路器的运行统计情况看， 操动机构的运行的可靠性很难令人满意。 根据国内外对高压断路器的可靠性调查数据显示， 在高压断路器的操作事故中操动机构事故 占有率高达 50%以上， 因此在高压断路器中操动机构的可靠性是影响高压断路器整体可靠性 的关键。
[0003] 申请号为 200810010510.2 的中国发明专利公开了一种高压断路器旋转伺服电机操动 机构， 该操动机构采用旋转电机驱动连杆机构动作转动， 再通过连杆机构牵引拐臂转动， 通 过拐臂牵引高压断路器单体的动触头绝缘拉杆动作以实现对高压断路器单体的分 /合闸动作 的控制， 对应的高压断路器的分 /合闸动作分别对应动触头绝缘拉杆的往复运动， 而动触头 绝缘拉杆的往复运动则又对应了拐臂的正 /反向转动， 拐臂的正 /反向转动又对应了旋转电机 的正 /反向转动， 但是由于在高压断路器的分 /合闸动作过程中， 旋转电机的正 /反向转动、 拐 臂的正 /反向转动均会加剧高压断路器的操动机构的各个动作元件的疲劳损伤， 从而导致了 整个高压断路器的使用寿命缩短， 使用可靠性降低。
发明内容
[0004] 本发明提出了一种工作可靠、 使用寿命长的高压断路器， 同时还提供了该高压断路 器的操动机构， 旨在解决现有技术中高压断路器的使用寿命短、 工作可靠性差的问题。
[0005] 本发明的高压断路器的技术方案如下：
一种高压断路器， 包括三个高压断路器单体、 用于牵动高压断路器单体的动触头动作的动触 头绝缘拉杆以及用于牵引绝缘拉杆动作的操动机构， 所述操动机构包括动力装置， 所述的动 力装置具有用于输出转动扭矩的输出端， 所述的动力装置的输出端和动触头绝缘拉杆通过两 者之间设置的传动机构传动连接， 所述传动机构包括与动力装置传动的输出端传动连接的曲 轴， 所述的曲轴具有与动力装置的输出端同轴设置的主轴颈以及处于相邻两个主轴颈之间的 偏置在动力装置的输出端的转动轴线的一侧的用于牵动三个高压断路器单体的动触头绝缘拉 杆同时动作的连杆颈， 所述的动触头绝缘拉杆绕曲轴的连杆颈的轴线转动装配在曲轴的连杆 颈的外周上。 [0006] 所述曲轴的主轴颈包括处于动力装置的输出端与动触头绝缘拉杆之间以及相邻两个 动触头绝缘拉杆之间的相间连杆， 所述曲轴的连杆颈包括相邻两个相间连杆的相对端分别装 设的曲柄以及相邻两个曲柄之间装设的连杆。
[0007] 所述动触头绝缘拉杆与曲轴的连杆颈的连接处设置有用于限定曲轴的径向位置的拐 臂盒， 所述的曲轴的连杆颈处于拐臂盒内， 并在拐臂盒的周壁上开设有供曲轴的主轴颈穿过 的开口。
[0008] 所述的动力装置为电动机， 所述的动力装置上控制连接有用于控制电动机工作的控 制装置。
[0009] 所述的曲轴上设有三个与三个高压断路器单体的动触头绝缘拉杆一一对应设置的连 杆颈。
[0010] 本发明的高压断路器的操动机构的技术方案如下：
一种高压断路器的操动机构， 包括动力装置， 所述的动力装置具有用于输出转动扭矩的输出 端， 所述的动力装置的输出端连接有用于与动触头绝缘拉杆传动连接的传动机构， 所述传动 机构包括与动力装置传动的输出端传动连接的曲轴， 所述的曲轴具有与动力装置的输出端同 轴设置的主轴颈以及处于相邻两个主轴颈之间的偏置在动力装置的输出端的转动轴线的一侧 的用于牵动三个高压断路器单体的动触头绝缘拉杆同时动作的连杆颈， 所述的动触头绝缘拉 杆绕曲轴的连杆颈的轴线转动装配在曲轴的连杆颈的外周上。
[0011] 所述曲轴的主轴颈包括用于设置在动力装置的输出端与动触头绝缘拉杆之间以及相邻 两个动触头绝缘拉杆之间的相间连杆， 所述曲轴的连杆颈包括相邻两个相间连杆的相对端分 别装设的曲柄以及相邻两个曲柄之间装设的连杆。
[0012] 所述曲轴的连杆颈的用于与动触头绝缘拉杆连接的连接处设置有用于限定曲轴的径 向位置的拐臂盒， 所述的曲轴的连杆颈处于拐臂盒内， 并在拐臂盒的周壁上开设有供曲轴的 主轴颈穿过的开口。
[0013] 所述的动力装置为电动机， 所述的动力装置上控制连接有用于控制电动机工作的控 制装置。
[0014] 所述的曲轴上设有三个用于与三个高压断路器单体的动触头绝缘拉杆一一对应设置 的连杆颈。
[0015] 本发明通过曲轴带动高压断路器单体的动触头绝缘拉杆动作， 其中， 曲轴的主轴颈 传动连接在动力装置的输出端以使动力装置向整个曲轴输入转动扭矩， 动触头绝缘拉杆转动 装配在曲轴的连杆颈上以使曲轴在转动的过程中动触头绝缘拉杆能够在曲轴的连杆颈的推拉 作用下在高压断路器单体内做往复运动， 牵动三个高压断路器单体的动触头绝缘拉杆同时动 作， 从而通过曲轴的转动带动高压断路器单体做分 /合闸运动， 因此在高压断路器在分 /合闸 运动时， 动力装置和曲轴始终在一个旋向转动， 不同于现有技术中旋转电机和拐臂需要正 / 反向转动的形式， 进而解决了现有技术中高压断路器的使用寿命短、 工作可靠性差的问题。 附图说明
[0016】 图 1是本发明的实施例的结构示意图。
具体实施方式
[0017] 本发明的高压断路器的实施例： 如图 1 所示， 该高压断路器包括三个间隔并排设置 的高压断路器单体 1 以及用于控制高压断路器单体 1的分 /合闸动作的操动机构 2， 其中， 高 压断路器单体 1 上设置有用于牵动高压断路器单体 1 的动触头动作的动触头绝缘拉杆 1-1 ; 操动机构 2 ώ动力装置 2-1 以及动力装置 2-1与动触头绝缘拉杆 1-1之间设置的传动机构 2-2 构成， 所述的动力装置 2-1 为能够输出转动扭矩的电动机， 并在动力装置 2-1 上控制连接有 用于控制动力装置 2-1工作的控制装置 2-3 ; 传动机构 2-2由曲轴 2-4构成， 该曲轴 2-4具有 与动力装置 2-1 的输出端同轴设置的主轴颈 2-5 以及处于相邻两个主轴颈 2-5之间的偏置在 动力装置 2-1的输出端的转动轴线的一侧的连杆颈 2-6， 曲轴 2-4的主轴颈 2-5由设置在动力 装置 2-1 的输出端与动触头绝缘拉杆 1 -1 之间以及相邻两个动触头绝缘拉杆 1-1之间的相间 连杆构成， 曲轴 2-4的连杆颈 2-6 ώ相邻两个相间连杆的相对端分别装设的曲柄以及相邻两 个曲柄之间装设的连杆构成， 连杆颈 2-6有三个， 并与所述的三个高压断路器单体 1 的动触 头绝缘拉杆 1-1一一对应分布， 动触头绝缘拉杆 1 -1绕曲轴 2-4的连杆颈 2-6的轴线转动装 配在曲轴 2-4的连杆颈 2-6的外周上， 并在动触头绝缘拉杆 1 -1 与曲轴 2-4的连杆颈 2-6的 连接处设置有用于限定曲轴的径向位置的拐臂盒 2-7， 曲轴 2-4的连杆颈 2-6处于拐臂盒 2-7 内， 且拐臂盒 2-7的周壁上幵设有供曲轴 2-4的主轴颈 2-5穿过的开口。
[0018] 本发明运用电动机的 360 度转动直接驱动高压断路器的分 /合闸动作， 也就是电动机 从 0度运动到 180度和从 180度运动到 360度分别对应高压断路器单体的合闸操作和分闸操 作； 电动机和相间连杆在合闸和分闸过程中始终向一个方向运动。 于相间连杆在合闸和分 闸操作过程中都以相同的方向运动， 可以提高合闸和分闸的三相同期性， 因此本发明改善了 操动机构和相间连杆的工作条件， 减少了相应部件的机械疲劳， 可以提高压断路器的机械寿 命和工作可靠性， 对提高断路器的技术经济水平具有重要意义， 有实际应用前景。
[0019] 在上述实施例中， 曲轴 ώ相间连杆、 曲柄和连杆构成， 在其他实施例中， 曲轴也可 以为与汽车发动机的曲轴类似的一体式结构。 [0020] 在上述实施例中， 动力装置为电动机， 在其他实施例中， 电动机也可以用汽车发动 机替换。
[0021] 在上述实施例中， 曲轴上具有三个连杆颈， 在其他实施例中， 曲轴上连杆颈的数量 也可以为一个或两个或多于三个， 对应的， 当曲轴上连杆颈为一个时， 三个高压断路器单体 的动触头绝缘拉杆转动装配在同一个连杆颈上； 当曲轴上连杆颈为两个时， 三个高压断路器 单体的动触头绝缘拉杆中的两个共用一个连杆颈； 当曲轴上连杆颈的数量多于三个时， 三个 高压断路器单体的动触头绝缘拉杆有选择的转动装配在其中的三个连杆颈。
[0022] 本发明的高压断路器的操动机构的实施例： 如图 1 所示， 关于操动机构的具体结构 已经在上述实施例中说明， 因此在本实施例中不再赘述。

Claims

权 利 要 求 书
1. 一种高压断路器， 包括三个高压断路器单体、 用于牵动高压断路器单体的动 触头动作的动触头绝缘拉杆以及用于牵引绝缘拉杆动作的操动机构，所述操动机 构包括动力装置， 所述的动力装置具有用于输出转动扭矩的输出端， 所述的动力 装置的输出端和动触头绝缘拉杆通过两者之间设置的传动机构传动连接，其特征 在于： 所述传动机构包括与动力装置传动的输出端传动连接的曲轴， 所述的曲轴 具有与动力装置的输出端同轴设置的主轴颈以及处于相邻两个主轴颈之间的偏 置在动力装置的输出端的转动轴线的一侧的用于牵动三个高压断路器单体的动 触头绝缘拉杆同时动作的连杆颈，所述的动触头绝缘拉杆绕曲轴的连杆颈的轴线 转动装配在曲轴的连杆颈的外周上。
2. 根据权利要求 1所述的高压断路器， 其特征在于： 所述曲轴的主轴颈包括处 于动力装置的输出端与动触头绝缘拉杆之间以及相邻两个动触头绝缘拉杆之间 的相间连杆，所述曲轴的连杆颈包括相邻两个相间连杆的相对端分别装设的曲柄 以及相邻两个曲柄之间装设的连杆。
3. 根据权利要求 1或 2所述的高压断路器， 其特征在于： 所述动触头绝缘拉杆 与曲轴的连杆颈的连接处设置有用于限定曲轴的径向位置的拐臂盒，所述的曲轴 的连杆颈处于拐臂盒内， 并在拐臂盒的周壁上丌设有供曲轴的主轴颈穿过的开 口。
4. 根据权利要求 1或 2所述的高压断路器， 其特征在于： 所述的动力装置为电 动机， 所述的动力装置上控制连接有用于控制电动机工作的控制装置。
5. 根据权利要求 1所述的高压断路器， 其特征在于： 所述的曲轴上设有三个与 三个高压断路器单体的动触头绝缘拉杆一一对应设置的连杆颈。
6. 一种高压断路器的操动机构， 包括动力装置， 所述的动力装置具有用于输出 转动扭矩的输出端，所述的动力装置的输出端连接有用于与动触头绝缘拉杆传动 连接的传动机构， 其特征在于： 所述传动机构包括与动力装置传动的输出端传动 连接的曲轴，所述的曲轴具有与动力装置的输出端同轴设置的主轴颈以及处于相 邻两个主轴颈之间的偏置在动力装置的输出端的转动轴线的一侧的用于牵动三 个高压断路器单体的动触头绝缘拉杆同时动作的连杆颈，所述的动触头绝缘拉杆 绕曲轴的连杆颈的轴线转动装配在曲轴的连杆颈的外周上。
7. 根据权利要求 6所述的高压断路器的操动机构， 其特征在于： 所述曲轴的主 轴颈包括用于设置在动力装置的输出端与动触头绝缘拉杆之间以及相邻两个动 触头绝缘拉杆之间的相间连杆，所述曲轴的连杆颈包括相邻两个相间连杆的相对 端分别装设的曲柄以及相邻两个曲柄之间装设的连杆。
8. 根据权利要求 6或 7所述的高压断路器的操动机构， 其特征在于： 所述曲轴 的连杆颈的用于与动触头绝缘拉杆连接的连接处设置有用于限定曲轴的径向位 置的拐臂盒， 所述的曲轴的连杆颈处于拐臂盒内， 并在拐臂盒的周壁上开设有供 曲轴的主轴颈穿过的开口。
9. 根据权利要求 6或 7所述的高压断路器的操动机构， 其特征在于： 所述的动 力装置为电动机， 所述的动力装置上控制连接有用于控制电动机工作的控制装 置。
10. 根据权利要求 6所述的高压断路器的操动机构， 其特征在于： 所述的曲轴上 设有三个用于与三个高压断路器单体的动触头绝缘拉杆一一对应设置的连杆颈。
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