WO2017152662A1 - 一种断路器及其传动装置 - Google Patents

一种断路器及其传动装置 Download PDF

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Publication number
WO2017152662A1
WO2017152662A1 PCT/CN2016/107248 CN2016107248W WO2017152662A1 WO 2017152662 A1 WO2017152662 A1 WO 2017152662A1 CN 2016107248 W CN2016107248 W CN 2016107248W WO 2017152662 A1 WO2017152662 A1 WO 2017152662A1
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WIPO (PCT)
Prior art keywords
slip ring
guide groove
hinge pin
section
guide
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PCT/CN2016/107248
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English (en)
French (fr)
Inventor
江经华
贺晶晶
张银穗
李永林
孙清超
李俊峰
雷传
魏建巍
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国家电网公司
平高集团有限公司
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Application filed by 国家电网公司, 平高集团有限公司 filed Critical 国家电网公司
Publication of WO2017152662A1 publication Critical patent/WO2017152662A1/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

Definitions

  • the invention belongs to the technical field of high voltage switch, and particularly relates to a circuit breaker and a transmission device thereof.
  • the Chinese Patent Publication No. CN 104465203 A entitled “Transmission Device for High Voltage Circuit Breakers”, discloses a transmission device.
  • the first pull rod converts the up and down motion into the horizontal movement of the second pull rod (corresponding to the lateral pull rod) through the first connecting rod, the turning arm and the second connecting rod.
  • the force transmitted by the first tie rod to the second pull rod includes a vertical component force and a horizontal component force
  • the second bushing (corresponding to the lateral tie rod guiding structure) is required to guide the second tie rod to ensure the horizontal movement of the second tie rod, but Because the second pull rod receives a large vertical component force, the friction between the guide hole of the second sleeve and the second pull rod is large, causing serious wear of the guide hole and the second pull rod of the second sleeve. It also reduces transmission efficiency and motion reliability.
  • the second pull rod since the second pull rod has a long length, a heavy weight, and a large vertical component force transmitted by the first pull rod, the length of the guide hole of the second sleeve is also ensured in order to ensure the horizontal movement of the second pull rod. Longer, to ensure the processing precision of the longer guide holes, it will inevitably lead to higher manufacturing costs.
  • embodiments of the present invention are expected to provide a transmission device to solve the technical problem that the lateral tie rods are subjected to a large vertical component force in the prior art, which causes the lateral tie rods to require a long horizontal guidance and is severely worn. It is also desirable in embodiments of the present invention to provide a circuit breaker including the transmission.
  • an embodiment of the present invention provides a transmission device including a lateral pull rod connected to the movable contact and a rotating arm extending through the connecting plate and the lateral pull rod to drive the horizontal axis of the lateral pull rod to extend in the front-rear direction,
  • One end of the plate is hingedly connected to the arm, and the other end of the connecting plate is hingedly connected to the transverse rod by a hinge pin extending in the front-rear direction of the axis
  • the transmission device further comprises a hinge pin guide, and the hinge pin guide is provided with A hinge pin guide structure that guides the movement fit with the hinge pin in the left-right direction.
  • the hinge pin guiding structure is a guiding groove extending in the left-right direction, and the outer peripheral surface of the hinge pin is provided with a sliding ring, the hinge pin is rotatably engaged with the sliding ring, and the sliding ring is in rolling engagement with the guiding groove.
  • the guiding groove includes a front guiding groove and a rear guiding groove which are spaced apart from each other in the front-rear direction
  • the hinge pin includes a front section, a rear section and an intermediate section between the front and rear sections
  • the slip ring includes The front slip ring of the outer peripheral surface of the front section and the rear slip ring of the outer peripheral surface of the rear section, the front slip ring and the rear slip ring are respectively roll-fitted with the front guide groove and the rear guide groove.
  • the front side of the front guide groove is provided with a front long hole extending in the left-right direction from the front guide groove in the front-rear direction, and the pin guide is on the rear guide groove.
  • the rear side is provided with a rear long hole extending in the left-right direction with a length in which the rear guide groove penetrates in the front-rear direction.
  • the outer diameters of the front and rear sections are smaller than the outer diameter of the intermediate section, and the front section and the middle section are provided with a forward facing pin for engaging with the front slip ring to restrict the backward movement of the front slip ring.
  • an embodiment of the present invention further provides a circuit breaker including a transmission device including a lateral tie rod connected to the movable contact and driving through the connecting plate and the lateral pull rod drive to drive
  • the rotating shaft of the horizontal rod moves left and right in the front-rear direction
  • the one end of the connecting plate is hingedly connected with the arm
  • the other end of the connecting plate is hingedly connected with the transverse rod through the axis extending in the front-rear direction
  • the circuit breaker further comprises a lateral pull rod guiding structure for guiding a moving fit with the lateral pull rod in the left-right direction
  • the transmission device further comprises a hinge pin guide member, wherein the hinge pin guide member is provided with a guiding and sliding engagement with the hinge pin shaft in the left-right direction Hinged pin guide structure.
  • the hinge pin guiding structure is a guiding groove extending in the left-right direction, and the outer peripheral surface of the hinge pin is provided with a sliding ring, the hinge pin is rotatably engaged with the sliding ring, and the sliding ring is in rolling engagement with the guiding groove.
  • the guiding groove includes a front guiding groove and a rear guiding groove which are spaced apart from each other in the front-rear direction
  • the hinge pin includes a front section, a rear section and an intermediate section between the front and rear sections
  • the slip ring includes The front slip ring of the outer peripheral surface of the front section and the rear slip ring of the outer peripheral surface of the rear section, the front slip ring and the rear slip ring are respectively roll-fitted with the front guide groove and the rear guide groove.
  • the front side of the front guide groove is provided with a front long hole extending in the left-right direction from the front guide groove in the front-rear direction, and the pin guide is on the rear guide groove.
  • the rear side is provided with a rear long hole extending in the left-right direction with a length in which the rear guide groove penetrates in the front-rear direction.
  • the outer diameters of the front and rear sections are smaller than the outer diameter of the intermediate section, and the front section and the middle section are provided with a forward facing pin for engaging with the front slip ring to restrict the backward movement of the front slip ring.
  • the hinge pin is constrained by the hinge pin guiding structure, and the hinge pin transmits only the force in the left-right direction to the horizontal tie rod, and the horizontal pull rod is substantially not transmitted by the arm Vertical component force, which makes the lateral tie rod guiding structure and lateral
  • the friction between the tie rods is small, and the wear of the lateral tie rod guiding structure and the lateral tie rods is also small, which contributes to the improvement of transmission efficiency and motion reliability.
  • the hinge pin guiding structure is a guiding groove extending in the left-right direction, and the outer peripheral surface of the hinge pin is provided with a sliding ring, the hinge pin is rotatably engaged with the sliding ring, and the sliding ring is in rolling engagement with the guiding groove.
  • the slip ring can freely rotate in the guiding groove, and the friction between the sliding ring and the guiding groove is rolling friction, so the friction is small, which makes the guiding groove wear less, which helps to improve transmission efficiency and motion reliability.
  • front long hole and the rear long hole facilitate the assembly adjustment of the hinge pin, the front slip ring and the rear slip ring, and also facilitate the observation of the movement state of the front slip ring and the rear slip ring.
  • FIG. 1 is a schematic structural view of a middle transmission device of a circuit breaker according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • transverse tie rod 1, transverse tie rod; 2, transmission rod; 3, transverse tie rod guiding structure; 4, hinge pin; 5, front guide groove; 6, front slip ring; 7, rear slip ring; Point; 9, arm; 10, front long hole; 11, rear guide groove; 12, connecting plate; 13, hinge pin guide; 14, rear long hole; 15, pin front step; Rear step surface; 17, front step surface; 18, rear step surface.
  • FIG. 1 and FIG. 2 are schematic views of the structure of the transmission device in the circuit breaker according to the embodiment of the present invention; wherein FIG. 2 is a cross-sectional view taken along line A-A of FIG.
  • the circuit breaker includes a transmission device including a transverse tie rod 1 connected to the movable contact and a rotation axis extending through the connecting plate 12 and the lateral tie rod 1 to drive the lateral pull rod 1 to move left and right in the front-rear direction.
  • Turn An arm 9 one end of the connecting plate 12 is hingedly connected to the arm 9 , and the other end of the connecting plate 12 is hingedly connected to the transverse tie rod 1 .
  • the transmission device further comprises a hinge pin guide 13 , and the hinge pin guide 13 is disposed on the arm A hinge pin guide structure that guides the movement fit with the hinge pin 4 in the left-right direction.
  • the arm 9 is hinged to a fixed hinge point 8 on the frame of the circuit breaker.
  • the transmission device further includes a transmission rod 2 hingedly connected to the arm 9. The up and down movement of the transmission rod 2 drives the arm 9 around the fixed hinge point 8. Rotating, and then moving the lateral tie rod 1 to the left and right through the connecting plate 12.
  • the circuit breaker further includes a lateral pull rod guiding structure 3 for guiding the moving fit with the lateral pull rod 1 in the left-right direction.
  • the hinge pin guiding structure is a guiding groove extending in the left-right direction, the outer peripheral surface of the hinge pin 4 is provided with a sliding ring, the sliding ring is in rolling engagement with the guiding groove, and the hinge pin 4 and the connecting plate 12 are rotated and matched, and the hinge pin
  • the shaft 4 is also rotatably engaged with the lateral tie rod 1
  • the sliding ring is also rotatably engaged with the hinge pin 4, the rotation gap between the hinge pin 4 and the connecting plate 12, and the rotation between the hinge pin and the lateral tie rod 1
  • the gap is smaller than the rotation gap between the slip ring and the hinge pin 4, and the resistance between the slip ring and the hinge pin 4 is small.
  • the guide groove includes a front guide groove 5 and a rear guide groove 11 which are spaced apart from each other in the front-rear direction
  • the hinge pin 4 includes a front portion, a rear portion, and an intermediate portion disposed between the front and rear portions, the front portion and the rear portion
  • the diameter is smaller than the outer diameter of the intermediate section
  • the slip ring includes a front slip ring 6 disposed on the outer peripheral surface of the front section and a rear slip ring 7 disposed on the outer peripheral surface of the rear section, and the front slip ring 6 and the rear slip ring 7 are both coupled to the hinge pin 4
  • the rotational fit, the front slip ring 6 and the rear slip ring 7 are in rolling engagement with the front guide groove 5 and the rear guide groove 11, respectively.
  • the front side of the front guide groove 5 is provided with a front long hole 10 extending in the left-right direction from the front guide groove 5 in the front-rear direction, and the front long hole 10 is spaced apart in the front-rear direction.
  • the hinge pin guide 13 is provided on the front side of the rear guide groove 11 with a rear long hole 14 extending in the left-right direction from the rear guide groove in the front-rear direction, and the rear long hole 14 is in the front-rear direction.
  • the widths of the front long hole 10 and the rear long hole 14 are larger than a predetermined width to facilitate the assembly adjustment of the hinge pin 4, the front slip ring 6 and the rear slip ring 7, and it is also convenient to observe the front slip ring 6 and The state of motion of the rear slip ring 7.
  • the predetermined width may be the width of an adult finger.
  • a rearward rear stepped surface 16 for restraining the rear slip ring 7 from moving forwardly with the rear slip ring 7 is provided between the rear section and the intermediate section, the front long hole 10 and the front guide groove 5
  • the rear step surface 18 that cooperates with the rear slip ring 7 to restrict the rear slip ring 7 from moving backward, prevents the front slip ring 6 from coming out in the front-rear direction through the pin front step surface 15 and the front step surface 17, and passes through the pin shaft
  • the stepped surface 16 and the rear stepped surface 18 prevent the rear slip ring from coming out in the front-rear direction.
  • the circuit breaker can dispense with the transmission rod 2, which is directly driven by the drive to rotate the arm 9 about the fixed hinge point 8.
  • the hinge pin guiding structure is a guide rail extending in the left-right direction
  • the guide pin shaft 4 is provided with a rail mounting groove that is guided and moved in the left-right direction in the circumferential direction of the hinge pin 4.
  • the hinge pin 4 and the web 12 can be non-rotatably fitted, or the hinge pin 4 and the transverse rod 1 can be non-rotatably engaged.
  • the embodiment of the transmission device of the present invention has the same structure as that of the transmission device in the embodiment of the circuit breaker, and will not be further described herein.
  • the hinge pin 4 is constrained by the hinge pin guiding structure, and the hinge pin 4 transmits only the force in the left-right direction to the lateral tie rod 1, and the lateral tie rod 1 is substantially free of the vertical component force transmitted by the arm 9, which makes the lateral direction
  • the friction between the tie rod guiding structure 3 and the lateral tie rod 1 is small, and the wear of the lateral tie rod guiding structure 3 and the lateral tie rod 1 is also small, which contributes to the improvement of transmission efficiency and motion reliability.
  • the hinge pin guiding structure is a guiding groove extending in the left-right direction, and the outer peripheral surface of the hinge pin 4 is provided with a slip ring, the hinge pin 4 is rotatably engaged with the sliding ring, and the sliding ring is in rolling engagement with the guiding groove.
  • the slip ring can rotate freely in the guiding groove, the friction between the sliding ring and the guiding groove is rolling friction, so the friction is small, which makes the guiding groove wear less, which helps to improve the transmission efficiency. Rate and motion reliability.
  • front long hole 10 and the rear long hole 14 facilitate the assembly adjustment of the hinge pin 4, the front slip ring 6 and the rear slip ring 7, and also facilitate the observation of the movement states of the front slip ring 6 and the rear slip ring 7.
  • the transmission device includes a hinge pin guide 13 on which the hinge pin guide structure for guiding and movably engaging the hinge pin 4 in the left-right direction is disposed.
  • the hinge pin 4 is restrained by the hinge pin guide structure, and the hinge pin 4 transmits only the force in the left-right direction to the lateral tie rod 1, and the lateral tie rod 1 is substantially free of the vertical component force transmitted by the arm 9, which
  • the friction between the lateral tie rod guiding structure 3 and the lateral tie rod 1 is small, and the wear of the lateral tie rod guiding structure 3 and the lateral tie rod 1 is also small, which contributes to the improvement of transmission efficiency and motion reliability.

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Abstract

一种断路器及其传动装置，该断路器包括传动装置，传动装置包括与动触头相连的横向拉杆（1）和通过连板（12）与横向拉杆传动相连以驱动横向拉杆左右运动的转动轴线沿前后方向延伸的拐臂（9），连板的一端与拐臂铰接相连，连板的另一端通过轴线沿前后方向延伸的铰接销轴（4）与横向拉杆铰接相连，传动装置还包括铰接销轴导向件（13），铰接销轴导向件上设置有与铰接销轴在左右方向上导向移动配合的铰接销轴导向结构。

Description

一种断路器及其传动装置 技术领域
本发明属于高压开关技术领域，具体涉及一种断路器及其传动装置。
背景技术
在断路器中，通常需要将机构的上下运动转化为动触头杆的水平运动。例如，申请公布号为CN 104465203 A，名称为一种高压断路器用传动装置的中国专利公开了一种传动装置。在该传动装置中，第一拉杆经过第一连扳、拐臂、第二连扳将上下运动转化为第二拉杆(相当于横向拉杆)的水平运动。第一拉杆传递给第二拉杆的作用力包括竖直分力和水平分力，需要第二轴套(相当于横向拉杆导向结构)对第二拉杆进行导向来保证第二拉杆的水平运动，但是，由于第二拉杆受到较大的竖直分力，使得第二轴套的导向孔与第二拉杆之间的摩擦力较大，造成第二轴套的导向孔和第二拉杆的磨损严重，也降低了传动效率和运动可靠性。此外，由于第二拉杆的长度较长、重量较重，而且承受第一拉杆传递的较大的竖直分力，因此为了保证第二拉杆的水平运动，第二轴套的导向孔的长度也较长，要保证较长的导向孔的加工精度，就必然会导致产品制造成本较高。
发明内容
为克服上述缺陷，本发明实施例期望提供一种传动装置以解决现有技术中横向拉杆受到较大的竖直分力而导致横向拉杆需要较长水平导向且磨损严重的技术问题。本发明实施例还期望提供一种包括所述传动装置的断路器。
为实现上述目的，本发明实施例的技术方案是这样实现的：
一方面，本发明实施例提供了一种传动装置，包括与动触头相连的横向拉杆和通过连板与横向拉杆传动相连以驱动横向拉杆左右运动的转动轴线沿前后方向延伸的拐臂，连板的一端与拐臂铰接相连，连板的另一端通过轴线沿前后方向延伸的铰接销轴与横向拉杆铰接相连，其中，传动装置还包括铰接销轴导向件，铰接销轴导向件上设置有与铰接销轴在左右方向上导向移动配合的铰接销轴导向结构。
上述方案中，铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴的外周面设有滑环，铰接销轴与滑环转动配合，滑环与导向槽滚动配合。
上述方案中，导向槽包括沿前后方向间隔设置且相平行的前导向槽和后导向槽，铰接销轴包括前段、后段和设于前、后两段之间的中间段，滑环包括设于前段的外周面的前滑环和设于后段的外周面的后滑环，前滑环和后滑环分别与前导向槽和后导向槽滚动配合。
上述方案中，铰接销轴导向件上于前导向槽的前侧设有与前导向槽在前后方向上相贯通的长度沿左右方向延伸的前长孔，销轴导向件上于后导向槽的后侧设有与后导向槽在前后方向上相贯通的长度沿左右方向延伸的后长孔。
上述方案中，前段和后段的外径小于中间段的外径，前段与中间段之间设有朝前的用于与前滑环挡止配合以限制前滑环向后移动的销轴前台阶面，后段与中间段之间设有朝后的用于与后滑环挡止配合以限制后滑环向前移动的销轴后台阶面，前长孔与前导向槽之间设有朝后的用于与前滑环挡止配合以限制前滑环向前移动的前台阶面，后长孔与后导向槽之间设有朝前的用于与后滑环挡止配合以限制后滑环向后移动的后台阶面。
另一方面，本发明实施例还提供了一种断路器，包括传动装置，传动装置包括与动触头相连的横向拉杆和通过连板与横向拉杆传动相连以驱动 横向拉杆左右运动的转动轴线沿前后方向延伸的拐臂，连板的一端与拐臂铰接相连，连板的另一端通过轴线沿前后方向延伸的铰接销轴与横向拉杆铰接相连，断路器还包括用于与横向拉杆在左右方向上导向移动配合的横向拉杆导向结构，其中，传动装置还包括铰接销轴导向件，铰接销轴导向件上设置有与铰接销轴在左右方向上导向移动配合的铰接销轴导向结构。
上述方案中，铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴的外周面设有滑环，铰接销轴与滑环转动配合，滑环与导向槽滚动配合。
上述方案中，导向槽包括沿前后方向间隔设置且相平行的前导向槽和后导向槽，铰接销轴包括前段、后段和设于前、后两段之间的中间段，滑环包括设于前段的外周面的前滑环和设于后段的外周面的后滑环，前滑环和后滑环分别与前导向槽和后导向槽滚动配合。
上述方案中，铰接销轴导向件上于前导向槽的前侧设有与前导向槽在前后方向上相贯通的长度沿左右方向延伸的前长孔，销轴导向件上于后导向槽的后侧设有与后导向槽在前后方向上相贯通的长度沿左右方向延伸的后长孔。
上述方案中，前段和后段的外径小于中间段的外径，前段与中间段之间设有朝前的用于与前滑环挡止配合以限制前滑环向后移动的销轴前台阶面，后段与中间段之间设有朝后的用于与后滑环挡止配合以限制后滑环向前移动的销轴后台阶面，前长孔与前导向槽之间设有朝后的用于与前滑环挡止配合以限制前滑环向前移动的前台阶面，后长孔与后导向槽之间设有朝前的用于与后滑环挡止配合以限制后滑环向后移动的后台阶面。
本发明实施例提供的技术方案具有以下有益效果：铰接销轴受铰接销轴导向结构的约束，铰接销轴只将沿左右方向的作用力传递给横向拉杆，横向拉杆基本不受拐臂传递的竖直分力，这使得横向拉杆导向结构与横向 拉杆之间的摩擦力较小，横向拉杆导向结构和横向拉杆的磨损也较小，有助于提高传动效率和运动可靠性。
进一步地，铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴的外周面设有滑环，铰接销轴与滑环转动配合，滑环与导向槽滚动配合。滑环可以在导向槽内自由转动，滑环与导向槽之间的摩擦是滚动摩擦，因此摩擦力较小，这使得导向槽的磨损也较小，有助于提高传动效率和运动可靠性。
进一步地，前长孔和后长孔方便铰接销轴、前滑环和后滑环的装配调整，也方便观察前滑环和后滑环的运动状态。
附图说明
图1为本发明实施例提供的断路器的中传动装置的结构示意图；
图2为沿图1中A-A线的剖视图；
附图标记说明：1、横向拉杆；2、传动杆；3、横向拉杆导向结构；4、铰接销轴；5、前导向槽；6、前滑环；7、后滑环；8、固定铰接点；9、拐臂；10、前长孔；11、后导向槽；12、连板；13、铰接销轴导向件；14、后长孔；15、销轴前台阶面；16、销轴后台阶面；17、前台阶面；18、后台阶面。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。下面结合附图与具体实施方式对本发明做进一步详细描述。
本发明实施例提供的断路器中传动装置的结构示意图如图1和图2所示；其中，图2为沿图1中A-A线的剖视图。如图1所示，断路器包括传动装置，传动装置包括与动触头相连的横向拉杆1和通过连板12与横向拉杆1传动相连以驱动横向拉杆1左右运动的转动轴线沿前后方向延伸的拐 臂9，连板12的一端与拐臂9铰接相连，连板12的另一端与横向拉杆1铰接相连，所述传动装置还包括铰接销轴导向件13，铰接销轴导向件13上设置有与铰接销轴4在左右方向上导向移动配合的铰接销轴导向结构。拐臂9铰接于断路器的机架上的固定铰接点8，所述传动装置还包括与拐臂9铰接相连的传动杆2，传动杆2的上下运动带动拐臂9绕固定铰接点8的转动，进而经过连板12带动横向拉杆1左右运动。断路器还包括用于与横向拉杆1在左右方向上导向移动配合的横向拉杆导向结构3。铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴4的外周面设有滑环，滑环与导向槽滚动配合，铰接销轴4与连板12之间转动配合，铰接销轴4与横向拉杆1之间也转动配合，滑环与铰接销轴4之间也转动配合，铰接销轴4与连板12之间的转动间隙、铰接销轴与横向拉杆1之间的转动间隙均小于滑环与铰接销轴4之间的转动间隙，滑环与铰接销轴4之间转动的阻力较小。导向槽包括沿前后方向间隔设置且相平行的前导向槽5和后导向槽11，铰接销轴4包括前段、后段和设于前、后段之间的中间段，前段和后段的外径小于中间段的外径，滑环包括设于前段的外周面的前滑环6和设于后段的外周面的后滑环7，前滑环6和后滑环7均与铰接销轴4转动配合，前滑环6和后滑环7分别与前导向槽5和后导向槽11滚动配合。铰接销轴导向件13上于前导向槽5的前侧设有与前导向槽5在前后方向上相贯通的长度沿左右方向延伸的前长孔10，前长孔10在前后方向上间隔设有两个，铰接销轴导向件13上于后导向槽11的前侧设有与后导向槽在前后方向上相贯通的长度沿左右方向延伸的后长孔14，后长孔14在前后方向上间隔设有两个，前长孔10和后长孔14的宽度大于预定宽度以方便对铰接销轴4、前滑环6和后滑环7进行装配调整，也方便观察前滑环6和后滑环7的运动状态。比如，所述预定宽度可以是成人手指的宽度。前段与中间段之间设有朝前的用于与前滑环6挡止配合以限制前滑环6向后移动的销轴前台阶面 15，后段与中间段之间设有朝后的用于与后滑环7挡止配合以限制后滑环7向前移动的销轴后台阶面16，前长孔10与前导向槽5之间设有朝后的用于与前滑环6挡止配合以限制前滑环6向前移动的前台阶面17，后长孔14与后导向槽11之间设有朝前的用于与后滑环7挡止配合以限制后滑环7向后移动的后台阶面18，通过销轴前台阶面15和前台阶面17防止前滑环6在前后方向上脱出，通过销轴后台阶面16和后台阶面18防止后滑环在前后方向上脱出。
作为一种可选实施方式，断路器可以省去传动杆2，直接由驱动装置驱动拐臂9绕固定铰接点8转动。
作为一种可选实施方式，铰接销轴导向结构为长度沿左右方向延伸的导轨，铰接销轴4的周向上设有与导轨在左右方向导向移动配合的导轨安装槽。
作为一种可选实施方式，铰接销轴4与连板12之间可止转配合，或铰接销轴4与横向拉杆1之间止转配合。
本发明中传动装置的实施例与断路器的实施例中传动装置的结构相同，不再在此赘述。
本发明实施例提供的技术方案具有以下有益效果：
铰接销轴4受铰接销轴导向结构的约束，铰接销轴4只将沿左右方向的作用力传递给横向拉杆1，横向拉杆1基本不受拐臂9传递的竖直分力，这使得横向拉杆导向结构3与横向拉杆1之间的摩擦力较小，横向拉杆导向结构3和横向拉杆1的磨损也较小，有助于提高传动效率和运动可靠性。
进一步地，铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴4的外周面设有滑环，铰接销轴4与滑环转动配合，滑环与导向槽滚动配合。滑环可以在导向槽内自由转动，滑环与导向槽之间的摩擦是滚动摩擦，因此摩擦力较小，这使得导向槽的磨损也较小，有助于提高传动效 率和运动可靠性。
进一步地，前长孔10和后长孔14方便铰接销轴4、前滑环6和后滑环7的装配调整，也方便观察前滑环6和后滑环7的运动状态。
工业实用性
本发明实施例中，传动装置包括铰接销轴导向件13，铰接销轴导向件13上设置有与铰接销轴4在左右方向上导向移动配合的铰接销轴导向结构。这样，铰接销轴4受铰接销轴导向结构的约束，铰接销轴4只将沿左右方向的作用力传递给横向拉杆1，横向拉杆1基本不受拐臂9传递的竖直分力，这使得横向拉杆导向结构3与横向拉杆1之间的摩擦力较小，横向拉杆导向结构3和横向拉杆1的磨损也较小，有助于提高传动效率和运动可靠性。

Claims (10)

  1. 一种传动装置，包括与动触头相连的横向拉杆和通过连板与横向拉杆传动相连以驱动横向拉杆左右运动的转动轴线沿前后方向延伸的拐臂，连板的一端与拐臂铰接相连，连板的另一端通过轴线沿前后方向延伸的铰接销轴与横向拉杆铰接相连，其中，所述传动装置还包括铰接销轴导向件，铰接销轴导向件上设置有与铰接销轴在左右方向上导向移动配合的铰接销轴导向结构。
  2. 根据权利要求1所述的传动装置，其中，铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴的外周面设有滑环，铰接销轴与滑环转动配合，滑环与导向槽滚动配合。
  3. 根据权利要求2所述的传动装置，其中，导向槽包括沿前后方向间隔设置且相平行的前导向槽和后导向槽，铰接销轴包括前段、后段和设于前、后两段之间的中间段，滑环包括设于前段的外周面的前滑环和设于后段的外周面的后滑环，前滑环和后滑环分别与前导向槽和后导向槽滚动配合。
  4. 根据权利要求3所述的传动装置，其中，铰接销轴导向件上于前导向槽的前侧设有与前导向槽在前后方向上相贯通的长度沿左右方向延伸的前长孔，销轴导向件上于后导向槽的后侧设有与后导向槽在前后方向上相贯通的长度沿左右方向延伸的后长孔。
  5. 根据权利要求4所述的传动装置，其中，前段和后段的外径小于中间段的外径，前段与中间段之间设有朝前的用于与前滑环挡止配合以限制前滑环向后移动的销轴前台阶面，后段与中间段之间设有朝后的用于与后滑环挡止配合以限制后滑环向前移动的销轴后台阶面，前长孔与前导向槽之间设有朝后的用于与前滑环挡止配合以限制前滑环向前移动的前台阶面，后长孔与后导向槽之间设有朝前的用于与后滑环挡止配合以限制后滑 环向后移动的后台阶面。
  6. 一种断路器，包括传动装置，传动装置包括与动触头相连的横向拉杆和通过连板与横向拉杆传动相连以驱动横向拉杆左右运动的转动轴线沿前后方向延伸的拐臂，连板的一端与拐臂铰接相连，连板的另一端通过轴线沿前后方向延伸的铰接销轴与横向拉杆铰接相连，所述断路器还包括用于与横向拉杆在左右方向上导向移动配合的横向拉杆导向结构，其中，所述传动装置还包括铰接销轴导向件，铰接销轴导向件上设置有与铰接销轴在左右方向上导向移动配合的铰接销轴导向结构。
  7. 根据权利要求6所述的断路器，其中，铰接销轴导向结构为长度沿左右方向延伸的导向槽，铰接销轴的外周面设有滑环，铰接销轴与滑环转动配合，滑环与导向槽滚动配合。
  8. 根据权利要求7所述的断路器，其中，导向槽包括沿前后方向间隔设置且相平行的前导向槽和后导向槽，铰接销轴包括前段、后段和设于前、后两段之间的中间段，滑环包括设于前段的外周面的前滑环和设于后段的外周面的后滑环，前滑环和后滑环分别与前导向槽和后导向槽滚动配合。
  9. 根据权利要求8所述的断路器，其中，铰接销轴导向件上于前导向槽的前侧设有与前导向槽在前后方向上相贯通的长度沿左右方向延伸的前长孔，销轴导向件上于后导向槽的后侧设有与后导向槽在前后方向上相贯通的长度沿左右方向延伸的后长孔。
  10. 根据权利要求9所述的断路器，其中，前段和后段的外径小于中间段的外径，前段与中间段之间设有朝前的用于与前滑环挡止配合以限制前滑环向后移动的销轴前台阶面，后段与中间段之间设有朝后的用于与后滑环挡止配合以限制后滑环向前移动的销轴后台阶面，前长孔与前导向槽之间设有朝后的用于与前滑环挡止配合以限制前滑环向前移动的前台阶面，后长孔与后导向槽之间设有朝前的用于与后滑环挡止配合以限制后滑 环向后移动的后台阶面。
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