WO2020088035A1 - 一种可变比合闸电阻传动装置 - Google Patents

一种可变比合闸电阻传动装置 Download PDF

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Publication number
WO2020088035A1
WO2020088035A1 PCT/CN2019/100646 CN2019100646W WO2020088035A1 WO 2020088035 A1 WO2020088035 A1 WO 2020088035A1 CN 2019100646 W CN2019100646 W CN 2019100646W WO 2020088035 A1 WO2020088035 A1 WO 2020088035A1
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WIPO (PCT)
Prior art keywords
closing resistance
circuit breaker
transmission device
variable ratio
connecting rod
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PCT/CN2019/100646
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English (en)
French (fr)
Inventor
任欢欢
沈鹏飞
曹亚钊
叶浩
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上海思源高压开关有限公司
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Application filed by 上海思源高压开关有限公司 filed Critical 上海思源高压开关有限公司
Publication of WO2020088035A1 publication Critical patent/WO2020088035A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1045—Multiple circuits-breaker, e.g. for the purpose of dividing current or potential drop

Definitions

  • the invention relates to the field of ultra-high voltage AC circuit breakers, in particular to a switching control structure of multiple parallel breaks.
  • the ultra-high voltage grid when closing the no-load long line, especially when the power supply voltage amplitude and the line residual voltage are reversed, is closed due to the sudden change of system parameters and the oscillation of the electromagnetic energy on the grid L-C, which causes a large overvoltage.
  • the closing resistance of the circuit breaker is generally used to limit the closing overvoltage.
  • Ultra-high voltage AC circuit breakers generally control some devices with specific functions, such as resistance devices, etc., by configuring parallel breaks.
  • the power system has strict time requirements for the switching of devices with specific functions.
  • mechanical transmission is generally used to achieve precise switching control between two parallel fractures.
  • Circuit Breaker with Closing Resistance discloses a structure and operating principle of a circuit breaker equipped with a closing resistance, and a connection plate is used between the moving side and the main break of the closing resistance of the structure Fixed, the speed ratio of the main fault to the closing resistor fault is fixed at 1: 1, and it is impossible to realize the synchronous transmission ratio transmission between the closing resistor fault and the main fault.
  • the circuit breaker mechanism is connected to the parallel switch through the transmission link, and the transmission link is driven by the circuit breaker mechanism to perform the closing operation, and at the same time, the self-storage spring is stored. Yes; when opening, the transmission connecting rod opens under the action of self-storing spring. Because the self-storage spring is used for opening, there are many parts of the transmission device, which affects the stability of the system, and the energy of the mechanism is required to be high; the circuit breaker mechanism directly hits the transmission link, if it is stuck, it is easy to cause The connecting rod is deformed. In addition, when two metal parts collide with each other, it is easy to generate a large amount of suspended metal chips in the circuit breaker. The metal chips are easily conductive in an ultra-high pressure environment and cause a short circuit. There are certain safety risks.
  • the current circuit breaker structure can only satisfy the constant speed between multiple breaks, or although the breaker has double-action structure, the structure will be very complicated, and the reliability and safety of long-term operation cannot be fully guaranteed.
  • the technical problem to be solved by the present invention is to provide a variable ratio closing resistance transmission device, which not only realizes the function of variable speed synchronous movement between multiple fractures, but also has a simple structure and reliable transmission.
  • a variable ratio closing resistance transmission device characterized by:
  • One end of the main boom is the fixed end, and the other end is the free end, which can rotate around the fixed end under the drive of the circuit breaker mechanism;
  • the breaker output link is installed on the first horizontal translation limit component and can only be set along a certain Move in direction
  • the connecting block is installed on the second horizontal translation limit component and can only translate parallel to the breaker output link;
  • the rotation axes are parallel to each other and perpendicular to the translation direction of the breaker output link.
  • the circuit breaker mechanism inputs the operation work of the opening and closing operations, thereby driving the main boom to rotate.
  • the rotation speed of the main boom can be decomposed into the partial speeds in the vertical direction and the horizontal direction.
  • the output link of the breaker breakout output is the horizontal partial velocity of the main boom at the rotation connection of the middle link of the breaker breakout and the main boom; the same reason .
  • the closing resistance connecting rod output from the closing resistance breaking link is connected to the main boom horizontally
  • the partial speed in the direction therefore, it is only necessary to rotate the middle link of the breaker break and the closing resistor link at different turning radii on the same side of the main boom to ensure the output link and closing resistor of the breaker break Under the premise of the same direction of the fracture link and parallel movement, the operation between different fractures under the speed ratio is realized.
  • the middle link of the breaker break and the closing resistance link are respectively connected at different turning radii on the opposite sides of the main boom (left and right sides), it can also ensure that the output link of the breaker break and the closing resistor break Under the premise that the connecting rods are in opposite directions and move in parallel, the operation between different fractures can be achieved under the gear ratio.
  • the direction of the breaker output link and the closing resistor link can be realized in the same direction and parallel and synchronized at the same speed .
  • the middle link of the breaker break and the closing resistance link are connected at the same turning radius on the opposite sides (left and right sides) of the main boom, the direction of the breaker output link and the closing resistance break link can be reversed And parallel synchronized movement at the same speed.
  • variable-ratio mounting interfaces for rotating and installing the middle connecting rod of the breaker break and / or the closing resistance connecting rod are arranged at intervals on the main boom. If the rotation installation position of the intermediate link of the breaker break and the closing resistance link on the main boom is fixed and unique, then a single device only has a transmission function of a gear ratio; and multiple variable ratio installation interfaces are provided for selection Installation, in actual use, you can flexibly choose to install the intermediate link of the breaker break and / or the closing resistance link to the appropriate variable ratio installation interface according to the needs of the variable speed drive, without replacing the entire part during on-site debugging and maintenance. It is easy to operate and convenient for long-term use of the device.
  • variable ratio mounting interfaces are arranged along the rotation radial direction of the free end of the main boom, that is, the rotation centers of all the variable ratio mounting interfaces are located on the same radius of the rotation circle of the free end of the main boom. It is convenient for calculation and quick adjustment of different speed ratios.
  • the first lateral translation limit component is a lateral guide through slot with a fixed position, and the output connecting rod of the breaker breakout slides through the lateral guide through slot.
  • the lateral guide through slot plays a limiting role on the output link of the breaker break.
  • a guide rail chute, linear bearing and other structures can also be used to play a similar limiting role.
  • the lateral guide through-groove is opened at the bottom of the V-shaped limit bracket of the lateral opening, and the V-shaped ends of the limit bracket are fixed outside the fixed parts of the variable ratio closing resistance transmission device to guide the lateral
  • the through slot serves as a symmetrical support.
  • the second lateral translation limit component is a fixed lateral guide groove
  • the horizontal guide groove is an internal through groove opened horizontally and longitudinally from front to back
  • the left and right ends of the groove cavity are closed ends
  • the notch and the bottom of the groove Both are through openings
  • the upper end of the connecting block is in the shape of a sleeve
  • the movable jacket is outside the lateral guide groove.
  • the upper end of the connecting block is provided with a needle roller, which passes through the horizontal guide groove along the horizontal and longitudinal directions.
  • the outer edges of the needle roller and the lateral guide groove play a role of limiting and supporting the upper end of the connecting block, and the left and right ends of the inner through-groove groove cavity are closed ends to prevent the needle roller from slipping out of the groove cavity.
  • the number of the closing resistance connecting rods is two, the front and rear ends of the roller needle extend out of the upper end sleeve of the connecting block, and the two closing resistance connecting rods are symmetrically installed outside the two extended ends of the roller needle.
  • the transmission of the two closing resistance connecting rods is more reliable, and it is easy to install by using the inherent structure of the needle roller. When the needle roller and the connection block are rotated and installed, the needle roller can also be prevented from slipping out of the installation hole on the connection block.
  • the middle connecting rod of the circuit breaker fracture and the circuit breaker mechanism are installed on the main boom through the same connecting shaft, wherein: the connecting shaft and the main boom are fixedly integrated; the middle connecting rod of the circuit breaker fracture is rotationally installed at On the connecting shaft; the circuit breaker mechanism and the connecting shaft are connected through the limit keyway, and the two cannot rotate relatively.
  • the connecting shaft and the main boom are fixedly integrated; the middle connecting rod of the circuit breaker fracture is rotationally installed at On the connecting shaft; the circuit breaker mechanism and the connecting shaft are connected through the limit keyway, and the two cannot rotate relatively.
  • the fixed end of the main cantilever arm is rotatably installed in the cantilever arm box with a fixed position through a rotating shaft. It is easy to install and fix, and at the same time protects the main cantilever.
  • the number of main breaking components composed of the middle link of the breaker break and the output link of the breaker break is one or more groups;
  • the number of closing resistance fracture components composed of block and closing resistance fracture connecting rod is one or more groups. In actual operation, it can be flexibly constructed as a one-to-one, one-to-many, many-to-one, and many-to-many variable-speed synchronous transmission mechanism between the main fault and the closing resistor fault.
  • the present invention can effectively solve the need to control some devices with specific functions in parallel and parallel fractures inside the circuit breaker to achieve the requirements of synchronous movement of different fractures and different output speeds, so that it is no longer affected by the double action of the fracture of the circuit breaker and can be easier Expand parallel breaks to improve product reliability;
  • the present invention can achieve different speeds by replacing main booms with different transformation ratios, or installing breakage connecting rods in installation interfaces with different transformation ratios on the same main boom, with simple structure and high stability.
  • Figure 1 is a schematic front view of a preferred structure of the device
  • FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1
  • FIG. 3 is a partial schematic perspective view of FIG. 1
  • FIG. 4 is an enlarged schematic view of the partial section of FIG. 1
  • Figure 5 is a schematic front view of another preferred structure
  • 1 is the boom box
  • 2 is the shaft
  • 3 is the bushing
  • 4 is the circuit breaker mechanism
  • 5 is the main arm
  • 501 is the variable ratio installation interface
  • 6 is the middle connecting rod of the breaker break
  • 7 It is the closing resistance connecting rod
  • 8 is the lateral guide groove
  • 9 is the connecting block
  • 901 is the square limit groove
  • 10 is the closing resistance fracture connecting rod
  • 11 is the circuit breaker fracture output connecting rod
  • 12 is the limit bracket
  • 13 It is a needle roller
  • 14 is a connecting shaft
  • 15 is a lateral guide slot.
  • one end of the main boom 5 is a fixed end, and is rotated and installed in a fixed-position boom box 1 through a rotating shaft 2.
  • the boom The joint between the box 1 and the main boom 5 is a hollow cavity structure with an opening downward.
  • the fixed end of the main boom 5 extends into the hollow chamber of the boom box 1 and the two ends of the rotating shaft 2 extend out of the main boom 5 through
  • the sleeve 3 is rotatably installed on the boom box 1; the other end of the main boom 5 is a free end, and can be rotated around the fixed end under the drive of the circuit breaker mechanism 4.
  • the intermediate connecting rod 6 of the breaker break is connected to the main boom 5 at one end, and connected to the breaker output link 11 at the other end.
  • the breaker output link 11 is installed on the first horizontal translation limit assembly Horizontal lateral movement; in the embodiment shown in FIGS. 1 and 5, the first lateral translation limit component is a fixed lateral guide through slot 15, and the breaker output link 11 slides through the lateral guide through slot 15
  • the lateral guide through slot 15 is opened at the V-shaped bottom of the laterally open V-shaped limit bracket 12, the V-shaped ends of the limit bracket 12 are fixed outside the fixed position of the cantilever box 1 and the lateral guide slot 8, the installation structure compact.
  • the closing resistance connecting rod 7 is connected to the main boom 5 at one end and connected to the connecting block 9 at the other end.
  • the connecting block 9 is installed on the second lateral translation limit assembly and can only move horizontally and horizontally;
  • the second horizontal translation limit component is a fixed horizontal guide slot 8
  • the horizontal guide slot 8 is an internal through slot opened horizontally and longitudinally from front to back, and both ends of the slot cavity are closed ends. Both the slot and the bottom of the slot are through openings; the upper end of the connecting block 9 is sleeve-shaped, and the movable jacket is outside the lateral guide slot 8.
  • the upper end of the connecting block 9 is provided with a needle 13 inside the sleeve, which is horizontally and longitudinally guided from the lateral
  • the groove 8 passes through;
  • the number of closing resistance connecting rods 7 is two, the front and back ends of the needle 13 extend out of the upper sleeve of the connecting block 9, the two closing resistance connecting rods 7 are symmetrically installed on the two extensions of the needle 13 Out of the end, as shown in Figure 2.
  • the closing resistance connecting rod 10 is installed at the lower end of the connecting block 9.
  • the lower end of the connecting block 9 opens a square limit slot 901 opening towards the closing resistance breaking link 10.
  • the closing resistance connecting rod 10 is locked in the square limit slot 901 Inside, the mating surface of the closing resistance breaking connecting rod 10 and the square limit groove 901 is a convexly flat round surface, and the square limiting groove 901 plays a role of limiting and fixing the closing resistance breaking connecting rod 10 to prevent closing resistance
  • the breaking link 10 moves relative to the connecting block 9.
  • the rotation axes are parallel to each other, and are arranged horizontally and longitudinally.
  • variable-ratio mounting interfaces 501 for rotating and installing the breaker intermediate link 6 and / or the closing resistance link 7 are provided on the main boom 5 at intervals, and multiple The variable-ratio mounting interfaces 501 are arranged along the rotation radial direction of the free end of the main boom 5, that is, the rotation centers of all the variable-ratio mounting interfaces 501 are located on the same radius of the rotation circle of the free end of the main boom 5.
  • the breaker intermediate link 6 and the circuit breaker mechanism 4 are installed on the main arm 5 through the same connecting shaft 14, wherein: the connecting shaft 14 is fixed to the main arm 5 Installed as a whole; the middle connecting rod 6 of the breaker break is installed on the connecting shaft 14; the circuit breaker mechanism 4 and the connecting shaft 14 are connected by a limit key slot, and the two cannot rotate relatively.
  • the circuit breaker mechanism 4 inputs the operation work of the opening and closing operations, thereby driving the main boom 5 to rotate synchronously, and the rotation speed of the main boom 5 can be decomposed into the split speeds in the vertical direction and the horizontal direction through the breaker break
  • the transmission of the intermediate connecting rod 6 and the limiting effect of the first horizontal translation limiter assembly, the output of the circuit breaker fracture output link 11 is the rotation of the circuit breaker fracture intermediate connecting rod 6 and the main boom 5 at the main boom 5 horizontal direction
  • the partial speed of the main boom 5 in the horizontal direction at the rotation connection with the main boom 5, therefore, it is only necessary to rotate the middle link of the breaker break and the closing resistance link to different rotation radii on the same side of the main boom 5 , It is possible to realize the operation between different fractures under the gear ratio under the premise of ensuring that the direction of the
  • the output link 11 of the breaker break and the closing can also be ensured
  • the resistance fracture connecting rod 10 is in the opposite direction and moves in parallel, the operation between different fractures is realized under the gear ratio.
  • circuit breaker break intermediate link 6 and the closing resistance link 7 are rotationally connected at the same turning radius on the same side of the main boom 5, the direction of the circuit breaker break output link 11 and the closing resistance break link 10 can be achieved in the same direction and Parallel synchronized movement at the same speed.
  • the connecting link of the breaker opening and the closing resistor break can be connected
  • the rods 10 move in opposite directions and are synchronized and synchronized at the same speed.
  • the number of the main breaking components composed of the circuit breaker breaking intermediate link 6 and the circuit breaker breaking output link 11 is one or more groups; by the closing resistance connecting rod 7,
  • the number of closing resistance fracture components composed of the connection block 9 and the closing resistance fracture connecting rod 10 is one or more groups, and is flexibly constructed as one-to-one, one-to-many, many-to-one, and many pairs between the main fracture and the closing resistance fracture Multiple variable speed synchronous transmission mechanism.

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Abstract

一种可变比合闸电阻传动装置，主拐臂一端为固定端，另一端为自由端、能够在断路器机构驱动下绕固定端转动；断路器断口中间连杆一端转动连接在主拐臂上，另一端转动连接断路器断口输出连杆，断路器断口输出连杆安装在第一横向平移限位组件上、只能沿某一设定方向移动；合闸电阻连杆一端转动连接在主拐臂上，另一端转动连接连接块，连接块安装在第二横向平移限位组件上、只能平行于断路器断口输出连杆平移；连接块上固设合闸电阻断口连杆；上述各转动连接处，转动轴向相互平行，并且与断路器断口输出连杆的平移方向垂直。本装置能够实现不同断口不同输出速度的要求，可以更加容易扩展并联断口，提高产品的可靠性；结构简单，稳定性高。

Description

一种可变比合闸电阻传动装置 技术领域
本发明涉及超高压交流断路器领域，尤其涉及多个并联断口的投切控制结构。
背景技术
超高压电网，在合空载长线时，尤其是在电源电压幅值与线路残压反相时合闸，由于系统参数突变，电网L-C上的电磁能量的振荡而引起较大的过电压。对这种过电压的限制，一般是利用断路器合闸电阻限制合闸过电压。
超高压交流断路器一般通过配并联断口控制一些具有特定功能的装置，如电阻装置等。而电力系统对具有特定功能的装置的投切有严格的时间要求，目前在开关设备领域，一般采用机械传动方式实现两个并联断口之间的精确投切控制。
申请号为201611237071.9的专利申请《具有合闸电阻的断路器》公开了一种断路器内配备合闸电阻的结构以及动作原理，该结构的合闸电阻断口动侧与主断口之间利用连接板固定，主断口与合闸电阻断口的速度之比固定为1：1，无法实现合闸电阻断口与主断口之间的同步变速比传动。
申请号为201320009273.3的专利《合闸电阻传动装置》中，利用断路器机构通过传动连杆与并联开关相连接，传动连杆受断路器机构的驱动进行合闸操作，同时使自储能弹簧储能；分闸时，传动连杆在自储能弹簧的作用下分闸操作。因为利用自储能弹簧进行分闸，导致传动装置的零部件较多，影响系统的稳定性，同时要求机构的能量较高；断路器机构直接撞击传动连杆，如果有所卡滞，容易导致连杆变形，此外，两个金属件相互撞击，容易在断路器内部产生大量悬浮的金属屑，金属屑在超高压环境中容易导电而导致短路情况的发生，存在一定的安全隐患。
因此，目前的断路器结构要么只能满足多断口之间为等速的，要么虽然断路器的断口有双动结构，但是结构会非常复杂，长期运行的可靠性和安全性都无法充分保障。
发明内容
本发明所要解决的技术问题在于提供一种可变比合闸电阻传动装置，不仅实现了多断口之间变速同步运动的功能，并且结构简单，传动可靠。
本发明是通过以下技术方案实现的：
一种可变比合闸电阻传动装置，其特征在于：
主拐臂一端为固定端，另一端为自由端、能够在断路器机构驱动下绕固定端转动；
断路器断口中间连杆一端转动连接在主拐臂上，另一端转动连接断路器断口输出连杆，断路器断口输出连杆安装在第一横向平移限位组件上、只能沿某一设定方向移动；
合闸电阻连杆一端转动连接在主拐臂上，另一端转动连接连接块，连接块安装在第二横向平移限位组件上、只能平行于断路器断口输出连杆平移；
连接块上固设合闸电阻断口连杆；
上述各转动连接处，转动轴向相互平行，并且与断路器断口输出连杆的平移方向垂直。
其中，断路器机构输入分、合操作的操作功，从而带动主拐臂转动，主拐臂的转动速度可以分解为竖直方向和水平方向两个方向上的分速度，通过断路器断口中间连杆的传动及第一横向平移限位组件的限位作用，断路器断口输出连杆输出的是断路器断口中间连杆与主拐臂转动连接处主拐臂水平方向上的分速度；同理，通过合闸电阻连杆和连接块的传动，以及第二横向平移限位组件的限位作用，合闸电阻断口连杆输出的合闸电阻连杆与主拐臂转动连接处主拐臂水平方向上的分速度，因此，只需要将断路器断口中间连杆和合闸电阻连杆分别转动连接在主拐臂同侧的不同转动半径处，就能够在保证断路器断口输出连杆和合闸电阻断口连杆方向一致且平行运动的前提下，实现变速比下，不 同断口间的操作。
此外，如果将断路器断口中间连杆和合闸电阻连杆分别转动连接在主拐臂相对两侧(左右两侧)的不同转动半径处，还能够在保证断路器断口输出连杆和合闸电阻断口连杆方向相反且平行运动的前提下，实现变速比下，不同断口间的操作。
如果将断路器断口中间连杆和合闸电阻连杆转动连接在主拐臂同侧的相同转动半径处，就能够实现断路器断口输出连杆和合闸电阻断口连杆方向一致且平行同步同速运动。
如果将断路器断口中间连杆和合闸电阻连杆转动连接在主拐臂相对两侧(左右两侧)的相同转动半径处，就能够实现断路器断口输出连杆和合闸电阻断口连杆方向相反且平行同步同速运动。
进一步的，所述主拐臂上间隔设置多个用于转动安装断路器断口中间连杆和/或合闸电阻连杆的变比安装接口。如果安装断路器断口中间连杆和合闸电阻连杆在主拐臂上的转动安装位置固定且唯一，则单个装置只具备一种变速比的传动功能；而提供多个变比安装接口以供选择安装，可以在实际使用中根据变速传动的需要灵活选择将断路器断口中间连杆和/或合闸电阻连杆安装到适合的变比安装接口中，无需现场调试和维护过程中更换零件整体，操作方便，便于装置的长期使用。
进一步的，所述多个变比安装接口沿主拐臂自由端的转动径向排布，即所有变比安装接口的转动中心均位于主拐臂自由端转动圆的同一半径上。便于不同变速比的计算及快速调整。
进一步的，所述第一横向平移限位组件为位置固定的横向导向通槽，断路器断口输出连杆从横向导向通槽中滑动穿过。横向导向通槽对断路器断口输出连杆起到限位作用，此外，也可以利用导轨滑槽、直线轴承等结构起到类似的限位作用。
进一步的，所述横向导向通槽开设在横向开口的V型限位支架的V形底部，限位支架的V形两端固定在可变比合闸电阻传动装置的固定零件外部，对横向导向通槽起到对称支撑的作用。
进一步的，所述第二横向平移限位组件为位置固定的横向导向槽，横向导向槽为水平纵向从前向后开设的内部贯穿槽，槽腔左右两端均为封闭端，槽口和槽底均为贯穿开口；连接块上端呈套筒形、活动外套在横向导向槽外，连接块上端套筒内部设有滚针，滚针沿水平纵向从横向导向槽内穿过。滚针和横向导向槽外缘对连接块上端起到限位和支撑的作用，内部贯穿槽槽腔左右两端均为封闭端以避免滚针从槽腔内滑脱。
再进一步，所述合闸电阻连杆数量为两个，滚针前后两端伸出连接块上端套筒，两个合闸电阻连杆对称转动安装于滚针两个伸出端外。两个合闸电阻连杆传动更为可靠，并且利用滚针的固有结构安装，安装方便。当滚针与连接块转动安装时，还可以防止滚针从连接块上的安装孔内滑脱。
进一步的，所述断路器断口中间连杆和断路器机构通过同一根连接轴、安装在主拐臂上，其中：连接轴与主拐臂固装为一体；断路器断口中间连杆转动安装在连接轴上；断路器机构与连接轴通过限位键槽连接，两者之间不能相对转动。利用一根连接轴同时完成转动件和固定件的安装，装置结构更为紧凑，利于在有限的断路器空间内布置。
进一步的，所述主拐臂的固定端通过转轴转动安装在位置固定的拐臂箱内。便于安装固定，同时对主拐臂起到保护作用。
进一步的，所述可变比合闸电阻传动装置中，由断路器断口中间连杆和断路器断口输出连杆组成的主断口组件数量为一组或者多组；由合闸电阻连杆、连接块和合闸电阻断口连杆组成的合闸电阻断口组件数量为一组或者多组。在实际操作中，可以根据需要灵活构建成主断口和合闸电阻断口之间一对一，一对多，多对一，多对多的变速同步传动机构。
需要说明的是，权利要求书及说明书中所提水平、横向、纵向、左、右等位置关系仅是为了描述方便而使用的一种相对的位置关系，并不是对所述方位的绝对限制。
本发明的有益效果在于：
1、本发明能够有效的解决在断路器内部并联并联断口控制一些具有特定功能的装置，实现不同断口同步运动、不同输出速度的要求，从而不再受断路 器断口双动的影响，可以更加容易扩展并联断口，提高产品的可靠性；
2、本发明可以通过更换不同变比的主拐臂，或者在同一主拐臂上的不同变比安装接口内安装断口连杆以实现速度的不同，结构简单，稳定性高。
附图说明
图1为本装置一种优选结构正视示意图
图2为图1的A-A向局剖示意图
图3为图1中的局部立体示意图
图4为图1中的局剖放大示意图
图5为另一种优选结构的正视示意图
图1～5中：1为拐臂箱，2为转轴，3为轴套，4为断路器机构，5为主拐臂，501为变比安装接口，6为断路器断口中间连杆，7为合闸电阻连杆，8为横向导向槽，9为连接块，901为方形限位槽，10为合闸电阻断口连杆，11为断路器断口输出连杆，12为限位支架，13为滚针，14为连接轴，15为横向导向通槽。
具体实施方式
下面结合附图对本发明作进一步说明。
如图1、图5所示的可变比合闸电阻传动装置，主拐臂5一端为固定端、通过转轴2转动安装在位置固定的拐臂箱1内，如图2所示，拐臂箱1与主拐臂5的配合处为开口向下的中空腔结构，主拐臂5的固定端伸入拐臂箱1的中空腔内，转轴2两端伸出主拐臂5外，通过轴套3转动安装在拐臂箱1上；主拐臂5另一端为自由端、能够在断路器机构4驱动下绕固定端转动。
断路器断口中间连杆6一端转动连接在主拐臂5上，另一端转动连接断路器断口输出连杆11，断路器断口输出连杆11安装在第一横向平移限位组件上、只能沿水平横向移动；如图1、图5所示的实施例中，第一横向平移限位组件为位置固定的横向导向通槽15，断路器断口输出连杆11从横向导向通槽15中滑动穿过；横向导向通槽15开设在横向开口的V型限位支架12的V形底部， 限位支架12的V形两端固定在位置固定的拐臂箱1和横向导向槽8外部，安装结构紧凑。
合闸电阻连杆7一端转动连接在主拐臂5上，另一端转动连接连接块9，连接块9安装在第二横向平移限位组件上、只能沿水平横向移动；如图1、图5所示的实施例中，第二横向平移限位组件为位置固定的横向导向槽8，横向导向槽8为水平纵向从前向后开设的内部贯穿槽，槽腔左右两端均为封闭端，槽口和槽底均为贯穿开口；连接块9上端呈套筒形、活动外套在横向导向槽8外，连接块9上端套筒内部设有滚针13，滚针13沿水平纵向从横向导向槽8内穿过；合闸电阻连杆7数量为两个，滚针13前后两端伸出连接块9上端套筒，两个合闸电阻连杆7对称转动安装于滚针13两个伸出端外，如图2所示。
合闸电阻断口连杆10安装在连接块9下端，连接块9下端开设开口朝向合闸电阻断口连杆10的方形限位槽901，合闸电阻断口连杆10锁接在方形限位槽901内，合闸电阻断口连杆10与方形限位槽901的配合面为外凸的扁圆面，方形限位槽901对合闸电阻断口连杆10起到限位固定作用，防止合闸电阻断口连杆10相对连接块9运动。
上述各转动连接处，转动轴向相互平行，均沿水平纵向布置。
如图5所示的实施例中，主拐臂5上间隔设置多个用于转动安装断路器断口中间连杆6和/或合闸电阻连杆7的变比安装接口501，并且，多个变比安装接口501沿主拐臂5自由端的转动径向排布，即所有变比安装接口501的转动中心均位于主拐臂5自由端转动圆的同一半径上。
如图1、图2所示的实施例中，断路器断口中间连杆6和断路器机构4通过同一根连接轴14安装在主拐臂5上，其中：连接轴14与主拐臂5固装为一体；断路器断口中间连杆6转动安装在连接轴14上；断路器机构4与连接轴14通过限位键槽连接，两者之间不能相对转动。
断路器机构4输入分、合操作的操作功，从而带动主拐臂5同步转动，主拐臂5的转动速度可以分解为竖直方向和水平方向两个方向上的分速度，通过断路器断口中间连杆6的传动及第一横向平移限位组件的限位作用，断路器断口输出连杆11输出的是断路器断口中间连杆6与主拐臂5转动连接处主拐臂5 水平方向上的分速度；同理，通过合闸电阻连杆7和连接块9的传动、以及第二横向平移限位组件的限位作用，合闸电阻断口连杆10输出的合闸电阻连杆7与主拐臂5转动连接处主拐臂5水平方向上的分速度，因此，只需要将断路器断口中间连杆和合闸电阻连杆分别转动连接在主拐臂5同侧的不同转动半径处，就能够在保证断路器断口输出连杆和合闸电阻断口连杆方向一致且平行运动的前提下，实现变速比下，不同断口间的操作，如图1所示，断路器断口输出连杆11和合闸电阻断口连杆10之间的速度比为L1：L2。
如果将断路器断口中间连杆6和合闸电阻连杆7分别转动连接在主拐臂5相对两侧(左右两侧)的不同转动半径处，还能够在保证断路器断口输出连杆11和合闸电阻断口连杆10方向相反且平行运动的前提下，实现变速比下，不同断口间的操作。
如果将断路器断口中间连杆6和合闸电阻连杆7转动连接在主拐臂5同侧的相同转动半径处，就能够实现断路器断口输出连杆11和合闸电阻断口连杆10方向一致且平行同步同速运动。
如果将断路器断口中间连杆6和合闸电阻连杆7转动连接在主拐臂5相对两侧(左右两侧)的相同转动半径处，就能够实现断路器断口输出连杆和合闸电阻断口连杆10方向相反且平行同步同速运动。
此外，在可变比合闸电阻传动装置中，由断路器断口中间连杆6和断路器断口输出连杆11组成的主断口组件数量为一组或者多组；由合闸电阻连杆7、连接块9和合闸电阻断口连杆10组成的合闸电阻断口组件数量为一组或者多组，灵活构建成主断口和合闸电阻断口之间一对一，一对多，多对一，多对多的变速同步传动机构。

Claims (10)

  1. 一种可变比合闸电阻传动装置，其特征在于：
    主拐臂(5)一端为固定端，另一端为自由端、能够在断路器机构(4)驱动下绕固定端转动；
    断路器断口中间连杆(6)一端转动连接在主拐臂(5)上，另一端转动连接断路器断口输出连杆(11)，断路器断口输出连杆(11)安装在第一横向平移限位组件上、只能沿某一设定方向移动；
    合闸电阻连杆(7)一端转动连接在主拐臂(5)上，另一端转动连接连接块(9)，连接块(9)安装在第二横向平移限位组件上、只能平行于断路器断口输出连杆(11)平移；
    连接块(9)上固设合闸电阻断口连杆(10)；
    上述各转动连接处，转动轴向相互平行，并且与断路器断口输出连杆(11)的平移方向垂直。
  2. 根据权利要求1所述的可变比合闸电阻传动装置，其特征在于：所述主拐臂(5)上间隔设置多个用于转动安装断路器断口中间连杆(6)和/或合闸电阻连杆(7)的变比安装接口(501)。
  3. 根据权利要求2所述的可变比合闸电阻传动装置，其特征在于：所述多个变比安装接口(501)沿主拐臂(5)自由端的转动径向排布。
  4. 根据权利要求1所述的可变比合闸电阻传动装置，其特征在于：所述第一横向平移限位组件为位置固定的横向导向通槽(15)，断路器断口输出连杆(11)从横向导向通槽(15)中滑动穿过。
  5. 根据权利要求4所述的可变比合闸电阻传动装置，其特征在于：所述横向导向通槽(15)开设在横向开口的V型限位支架(12)的V形底部，限位支架(12)的V形两端固定在可变比合闸电阻传动装置的固定零件外部。
  6. 根据权利要求1所述的可变比合闸电阻传动装置，其特征在于：所述第二横向平移限位组件为位置固定的横向导向槽(8)，横向导向槽(8)为水平纵向从前向后开设的内部贯穿槽，槽腔左右两端均为封闭端，槽口和槽底均为贯穿开口；
    连接块(9)上端呈套筒形、活动外套在横向导向槽(8)外，连接块(9) 上端套筒内部设有滚针(13)，滚针(13)沿水平纵向从横向导向槽(8)内穿过。
  7. 根据权利要求6所述的可变比合闸电阻传动装置，其特征在于：所述合闸电阻连杆(7)数量为两个，滚针(13)前后两端伸出连接块(9)上端套筒，两个合闸电阻连杆(7)对称转动安装于滚针(13)两个伸出端外。
  8. 根据权利要求1所述的可变比合闸电阻传动装置，其特征在于：所述断路器断口中间连杆(6)和断路器机构(4)通过同一根连接轴(14)安装在主拐臂(5)上，其中：
    连接轴(14)与主拐臂(5)固装为一体；
    断路器断口中间连杆(6)转动安装在连接轴(14)上；
    断路器机构(4)与连接轴(14)通过限位键槽连接，两者之间不能相对转动。
  9. 根据权利要求1所述的可变比合闸电阻传动装置，其特征在于：所述主拐臂(5)的固定端通过转轴(2)转动安装在位置固定的拐臂箱(1)内。
  10. 根据权利要求1所述的可变比合闸电阻传动装置，其特征在于：所述可变比合闸电阻传动装置中，由断路器断口中间连杆(6)和断路器断口输出连杆(11)组成的主断口组件数量为一组或者多组；由合闸电阻连杆(7)、连接块(9)和合闸电阻断口连杆(10)组成的合闸电阻断口组件数量为一组或者多组。
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