WO2020206889A1 - 一种防电弧损伤的转辙机接点组及方法 - Google Patents

一种防电弧损伤的转辙机接点组及方法 Download PDF

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Publication number
WO2020206889A1
WO2020206889A1 PCT/CN2019/099476 CN2019099476W WO2020206889A1 WO 2020206889 A1 WO2020206889 A1 WO 2020206889A1 CN 2019099476 W CN2019099476 W CN 2019099476W WO 2020206889 A1 WO2020206889 A1 WO 2020206889A1
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contact
static contact
ring
group
static
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PCT/CN2019/099476
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English (en)
French (fr)
Inventor
梅积刚
鲍荣海
宁宗夏
王璞汝
高晓伟
郑帅
蔡鹏翔
何建峰
唐一鸣
邹超荣
Original Assignee
西安铁路信号有限责任公司
通号（西安）轨道交通工业集团有限公司
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Publication of WO2020206889A1 publication Critical patent/WO2020206889A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means

Definitions

  • the application belongs to the technical field of rail transit switch switching equipment, in particular to a switch machine contact group and method for preventing arc damage, which is suitable for railway switch switch machines.
  • the position where the moving contact ring finally leaves the static contact group is located at the lowest point of the static contact sheet.
  • An arc is generated.
  • the moving contact ring 7 will randomly rotate during the action. Long-term use of the arc will burn the moving contact ring 7 and form a circle of arc damage.
  • the damage of the movable contact ring 7 also participates in the connection of the circuit. The damage of the arc and the appendages generated by the high temperature will cause the circuit to be connected poorly and cause the system to indicate a circuit failure.
  • the purpose of this application is to provide a switch machine contact group and method that can avoid arc damage caused by poor contact failure caused by arc damage.
  • the technical solution of the present application is: a switch machine contact group that prevents arc damage, including at least a left static contact group, a right static contact group, and a moving contact group, and the moving contact group is between the left static contact group and the right static contact group Position, the movable contact group forms alternating dynamic electrical contact with the left static contact group and the right static contact group by rotating and swinging.
  • the static contact group includes a static contact block, a static contact piece, a reinforcing piece, a wiring stud, a fastener, and a static contact seat.
  • the wiring stud is fixed on the static contact seat, and a plurality of static contact seats are arranged side by side.
  • the contact base is fixed on the static contact block; a set of left and right elastic clamping electrodes is formed by two static contact pieces and two reinforcing pieces.
  • One static contact piece and one of the two static contact pieces and the two reinforcing pieces The strong sheets are laminated together to form a left elastic electrode or a right elastic electrode that elastically clamps the electrode sheet; another static contact sheet and another reinforcing sheet are laminated together to form a right elastic electrode sheet that elastically clamps the electrode sheet Or left elastic electrode.
  • the movable contact group includes a movable contact block, a movable contact ring, a retaining ring, and a contact post.
  • the upper end of the central axis of the movable contact block is fixed with a contact post, the central axis is coaxial with the contact post, and the contact block is fixed to rotate and swing.
  • the rotating and swinging mechanism makes the contact post swing left and right; the moving contact ring penetrates the contact post of the moving contact block, and the upper part of the moving contact ring has a stop ring stop; the connecting post is connected with an external circuit, which elastically clamps the electrode sheet and the moving contact on both sides
  • the ring forms a dynamic connection;
  • the opening size of the left and right elastic clamping electrode sheets is 12 mm in a normal state.
  • the diameter of the movable contact ring (7) is 14 mm.
  • a method for preventing arc damage of a switch machine contact group at least includes a left static contact group, a right static contact group, and a moving contact group, wherein the moving contact group is in the middle of the left static contact group and the right static contact group, and the moving contact The group forms alternating dynamic electrical contact with the left static contact group and the right static contact group by rotating and swinging.
  • the static contact group includes a static contact block, a static contact piece, a reinforcing piece, a wiring stud, a fastener and a static contact seat ,
  • the wiring stud is fixed on the static contact base, and a plurality of side-by-side static contact bases are fixed on the static contact block;
  • two static contact pieces and two reinforcement pieces form a set of left and right elastic clamping electrodes, two static contacts One static contact piece and one of the two reinforcing pieces are laminated together in a dislocation to form a left elastic electrode or right elastic electrode that elastically clamps the electrode piece;
  • the other static contact piece and the other reinforcing piece Laminate together to form a right elastic electrode sheet or a left elastic electrode that elastically clamp the electrode sheet, and the elastic clamp electrode sheet is fixed on the terminal stud by a fastener;
  • the movable contact group includes a movable contact block, a movable contact ring, a retaining ring, and a contact post.
  • the upper end of the central axis of the movable contact block is fixed with a contact post, and the central axis is coaxial with the contact post.
  • the contact block is fixed on the rotating swing mechanism and rotates.
  • the swing mechanism makes the contact post swing left and right; the moving contact ring penetrates the contact post of the moving contact block, and the upper part of the moving contact ring has a stop ring stop; the connecting post is connected with an external circuit, and the left and right elastic clamping electrode plates form a dynamic connection with the moving contact ring ;
  • the moving contact group is in the initial position, the moving contact ring of the moving contact group is driven into the static contact piece to connect the circuit of the left contact, and the moving contact ring is in line contact with the left and right elastic clamping electrode pieces;
  • the movable contact ring swings to the right, the movable contact ring releases the left and right elastic clamping electrode sheets, and the circuit of the left contact is disconnected; the arc is generated at the position of the last separation point between the movable contact ring and the left and right elastic clamping electrode sheets.
  • the contact ring rotates and swings in the follow-up contact assembly, the moving contact ring itself will randomly rotate, and the arc will form a circle of arc ablation at one part of the moving contact ring;
  • the moving contact ring continues to swing to the right, turning to the middle position of the left static contact group and the right static contact group;
  • the moving contact ring continues to swing to the right, and the moving contact ring starts to connect with the static contact piece of the right contact;
  • the moving contact ring swings to the right static contact group position, the moving contact group stops rotating, and the moving contact ring reliably connects to the circuit of the right contact in the final connected position;
  • the process of the moving contact group swinging from the right static contact group to the left static contact group is the same as the above process, and the swing direction is opposite.
  • the beneficial effect of the present application is that the head of the static contact piece is extended downward, so that the downward extension part is used as the time-moving contact ring 7 to disconnect the circuit from the contact point of the static contact piece, and the power-off position on the moving contact ring 7 is lowered Move, the arc ablation position moves down, in the final contact position of the contact, the arc ablation position does not participate in the connection of the circuit, so as to avoid the fault of poor circuit contact.
  • Figure 1 is a schematic diagram of the installation structure of an embodiment of the utility model
  • Figure 2 is a schematic diagram of the overall contact between the static contact and the movable contact ring of the embodiment of the present invention
  • Figure 3 is a schematic diagram of the arc ablation position
  • Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 are schematic diagrams of the action process of the present application from the initial position at the left end to the end position at the right end.
  • the present application relates to a switch machine contact group to prevent arc damage, which includes at least a left static contact group, a right static contact group and a moving contact group, wherein the moving contact group is on the left At the middle position of the static contact group and the right static contact group, the moving contact group forms alternating dynamic electrical contact with the left static contact group and the right static contact group by rotating and swinging.
  • the static contact group includes the static contact block 1, the static contact piece 2, the reinforcing piece 3, the wiring stud 4, the fastener 5 and the static contact seat.
  • the wiring stud 4 is fixed on the static contact seat, and there are multiple static contacts side by side
  • the base is fixed on the static contact block 1;
  • the static contact piece 2, the reinforcing piece 3 are fixed to the terminal stud 4 by the fastener 5 in turn;
  • two static contact pieces 2 and two reinforcing pieces 3 form a set of left and right Elastic clamping electrode, one static contact sheet 2 and one reinforcing sheet 3 of the two static contact sheets 2 and the two reinforcing sheets 3 are laminated together in a dislocation to form a left elastic electrode or right elastic for elastic clamping of the electrode sheets Electrode; another static contact sheet 2 and another reinforcing sheet 3 are laminated together to form a right elastic electrode sheet or a left elastic electrode that elastically clamps the electrode sheet.
  • the movable contact group includes a movable contact block 6, a movable contact ring 7, a retaining ring 8 and a contact post.
  • the upper end of the central axis of the movable contact block 6 is fixed with a contact post, the central axis is coaxial with the contact post, and the contact block 6 is fixed on the rotating and swinging mechanism ,
  • the rotating and swinging mechanism makes the contact post swing left and right;
  • the movable contact ring 7 passes through the contact post of the movable contact block 6, and the upper part of the movable contact ring 7 has a stop ring 8 to stop;
  • the connection post is connected with an external circuit, which elastically clamps the electrode sheet and
  • the movable contact ring 7 forms a dynamic connection; in an implementation manner, the opening size of the left and right elastic clamping electrode sheets can be 12 mm in a normal state.
  • the diameter of the movable contact ring 7 can be 14mm; the movable contact ring 7 and the static contact piece 2 are dynamically inserted, and the static contact piece 2 is opened.
  • the elastic contact piece generates a certain pressure on the contact ring to make the static contact piece 2, the contact ring reliable
  • the static contact sheet 2 mainly performs a conductive function and provides a certain contact pressure
  • the reinforcing sheet 3 mainly provides the pre-pressure of the contact.
  • the movable contact group makes a rotating movement during use, and has a certain sweep during the contact and disengagement of the movable contact ring 7 and the static contact piece 2.
  • the moving contact ring 7 enters the static contact piece 2 and then connects to the circuit.
  • the present application relates to a method for preventing arc damage.
  • the method includes at least a left static contact group, a right static contact group, and a moving contact group.
  • the moving contact group is in the left static contact group.
  • the middle position of the right static contact group, the movable contact group forms alternating dynamic electrical contact with the left and right static contact groups through rotation and swing
  • the static contact group includes the static contact block 1, the static contact piece 2, the reinforcing piece 3. Wiring studs 4, fasteners 5 and static contact bases.
  • Wiring studs 4 are fixed on the static contact base, and multiple side-by-side static contact bases are fixed on the static contact block 1; two static contact pieces 2 and Two reinforcing sheets 3 form a set of left and right elastic clamping electrodes.
  • Two static contact sheets 2 and one of the two reinforcing sheets 3, one static contact sheet 2 and one reinforcing sheet 3 are laminated together in a staggered manner to form an elastic clamp Left elastic electrode or right elastic electrode holding the electrode sheet; another static contact sheet 2 and another reinforcing sheet 3 are laminated together to form a right elastic electrode or a left elastic electrode that elastically clamps the electrode sheet, which elastically clamps the electrode sheet
  • the fastener 5 is fixed on the terminal stud 4.
  • the movable contact group includes a movable contact block 6, a movable contact ring 7, a retaining ring 8 and a contact post.
  • the upper end of the central axis of the movable contact block 6 is fixed with a contact post, the central axis is coaxial with the contact post, and the contact block 6 is fixed on the rotating
  • the rotary swing mechanism makes the contact post swing left and right;
  • the movable contact ring 7 passes through the contact post of the movable contact block 6, and the upper part of the movable contact ring 7 has a stop ring 8 to stop;
  • the connection post is connected with an external circuit, which is elastically clamped on both sides
  • the electrode sheet and the movable contact ring 7 form a dynamic connection.
  • the movable contact ring 7 in the initial position, the movable contact ring 7 is driven into the static contact sheet 2 to connect the circuit of the left contact.
  • the movable contact ring is in line contact with the left and right elastic clamping electrode sheets.
  • the movable contact ring 7 itself will randomly rotate, and the movable contact ring 7 may participate in the circuit connection in the C ring area shown in FIG. 4.
  • the moving contact ring 7 swings to the right, the moving contact ring (7) releases the left and right elastic clamping electrode sheets, and disconnects the circuit of the left contact; the arc is generated in the moving contact ring (7) and the static contact
  • the last of the sheet 2 leaves the position of point B.
  • the movable contact ring 7 rotates and swings during the follow-up contact assembly, the movable contact ring 7 will randomly rotate, and the arc will form an arc at point B of the movable contact ring 7 Ablation, the ring ablation at B is located below the C ring area.
  • the movable contact ring 7 continues to swing to the right, turning to the right contact.
  • the moving contact ring 7 starts to connect to the static contact piece 2 of the right contact.
  • the beneficial effect of the present application is to move the arc ablation position of the movable contact ring downward, so that the arc ablation position does not participate in the final contact of the contact group, and avoids the arc ablation from affecting the connection of the contacts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

一种防电弧损伤的转辙机接点组及方法，其中的防电弧损伤的转辙机接点组至少包括左静接点组、右静接点组和动接点组，动接点组在左静接点组、右静接点组中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触。由此，能够避免电弧损伤造成的接触不良故障发生。

Description

一种防电弧损伤的转辙机接点组及方法
本申请要求在2019年04月12日提交中国专利局、申请号为201910293698.3、发明名称为“一种防电弧损伤的转辙机接点组及方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于轨道交通道岔转换设备技术领域，特别是一种防电弧损伤的转辙机接点组及方法，适用于铁路道岔转辙机。
背景技术
传统转辙机用接点组，在迅速断开转辙机的动作电路的过程中，根据接点组的动作过程，动接点环最后脱离静接点组的位置位于静接点片的最下点，接点会产生电弧。动接点环7在动作过程中会随机转动，长期使用电弧会烧伤动接点环7，形成一圈电弧损伤。在接点最终接触位置，动接点环7的损伤处也参与电路的接通，电弧的损伤及高温产生的附属物会造成电路接通不良，引起***表示电路故障。
发明内容
本申请的目的在于提供一种能避免电弧损伤造成的接触不良故障发生防电弧损伤的转辙机接点组及方法。
本申请的技术方案是：涉及一种防电弧损伤的转辙机接点组，至少包括左静接点组、右静接点组和动接点组，动接点组在左静接点组、右静接点组中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触。
可选的，所述的静接点组包括静接点块、静接点片、补强片、接线螺柱、紧固件和静接点座，接线螺柱固定在静接点座上，多个并排的静接点座固定在静接点块上；由两个静接点片和两个补强片形成一组左右弹性夹持电极，两个静接点片和两个补强片中的一个静接点片和一个补强片错位叠层在一起，形成弹性夹持电极片的左弹性电极或右弹性电极；另一个静接点片和另一个补强片叠层在一起，形成弹性夹持电极片的右弹性电极片或左弹性电极。
可选的，所述的动接点组包括动接点块、动接点环、挡环和接点柱，动接点块中心轴上端固定有接点柱，中心轴与接点柱同轴，接点块固定在旋转摆动机构上，旋转摆动机构使接点柱左右摆动；动接点环穿于动接点块的接点柱上，动接点环上部有挡环止挡；接线柱上外接电路，左右弹性夹持电极片与动接点环形成动态连接；
可选的，所述左右弹性夹持电极片在通常状态下开口尺寸为12mm。
可选的，所述动接点环(7)的直径为14mm。
一种防电弧损伤的转辙机接点组的方法，至少包括左静接点组、右静接点组和动接点组，其中，动接点组在左静接点组、右静接点组中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触，所述的静接点组包括静接点块、静接点片、补 强片、接线螺柱、紧固件和静接点座，接线螺柱固定在静接点座上，多个并排的静接点座固定在静接点块上；由两个静接点片和两个补强片形成一组左右弹性夹持电极，两个静接点片和两个补强片中的一个静接点片和一个补强片错位叠层在一起，形成弹性夹持电极片的左弹性电极或右弹性电极；另一个静接点片和另一个补强片叠层在一起，形成弹性夹持电极片的右弹性电极片或左弹性电极，弹性夹持电极片通过紧固件固定在接线螺柱上；
所述的动接点组包括动接点块、动接点环、挡环和接点柱，动接点块中心轴上端固定有接点柱，中心轴与接点柱同轴，接点块固定在旋转摆动机构上，旋转摆动机构使接点柱左右摆动；动接点环穿于动接点块的接点柱上，动接点环上部有挡环止挡；接线柱上外接电路，左右弹性夹持电极片与动接点环形成动态连接；
动接点组在初始位置，动接点组的动接点环打入静接点片，接通左侧接点的电路，动接点环与左右弹性夹持电极片为线接触；
动接点环向右侧摆动，动接点环脱开左右弹性夹持电极片，断开左侧接点的电路；电弧产生于动接点环与左右弹性夹持电极片的最后脱离点的位置，由于动接点环在随动接点组件旋转摆动过程中，动接点环自身会随机转动，电弧会在动接点环的一处形成一圈电弧烧蚀；
动接点环继续向右侧摆动，转向左静接点组和右静接点组中间位置；
动接点环继续向右侧摆动，动接点环开始接通右侧接点的静接点片；
动接点环摆动到右静接点组位置，动接点组停止转动，动接点环可靠接通右侧接点的电路，在最终的接通位置；
动接点组从右侧静接点组摆动至左侧静接点组的过程与上述过程相同，摆动方向相反。
本申请的有益效果是：在静接点片的头部下延，使下延部分作为断开电路的时动接点环7脱离静接点片的接触点，使动接点环7上的断电位置下移，电弧烧蚀位置下移，在接点最终的接触位置，电弧烧蚀的位置不参与电路的接通，避免电路接触不良的故障。
附图说明
图1是本实用新型实施例的安装结构示意图；
图2是本实用新型实施例静接点和动接点环整体接触示意图；
图3是电弧烧蚀位置示意图；
图4、图5、图6、图7、图8是本申请从左端的初始位置到右端终止位置动作过程示意图。
图中：1.静接点块；2.静接点片；3.补强片；4.接线螺柱；5.紧固件；6.动接点块；7.动接点环；8.挡环。
具体实施方式
下面结合实施例附图对本申请做进一步说明。
如图1、图2和图3所示，本申请涉及一种防电弧损伤的转辙机接点组，至少包括左静接点组、右静接点组和动接点组，其中，动接点组在左静接点组、右静接点组中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触。
静接点组包括静接点块1、静接点片2、补强片3、接线螺柱4、紧固件5和静接点座，接线螺柱4固定在静接点座上，多个并排的静接点座固定在静接点块1上；静接点片2、 补强片3依次通过紧固件5固定在接线螺柱4上；由两个静接点片2和两个补强片3形成一组左右弹性夹持电极，两个静接点片2和两个补强片3中的一个静接点片2和一个补强片3错位叠层在一起，形成弹性夹持电极片的左弹性电极或右弹性电极；另一个静接点片2和另一个补强片3叠层在一起，形成弹性夹持电极片的右弹性电极片或左弹性电极。
动接点组包括动接点块6、动接点环7、挡环8和接点柱，动接点块6中心轴上端固定有接点柱，中心轴与接点柱同轴，接点块6固定在旋转摆动机构上，旋转摆动机构使接点柱左右摆动；动接点环7穿于动接点块6的接点柱上，动接点环7上部有挡环8止挡；接线柱上外接电路，左右弹性夹持电极片与动接点环7形成动态连接；在一种实现方式中，左右弹性夹持电极片在通常状态下开口尺寸可以为12mm。
动接点环7的直径可以为14mm；动接点环7与静接点片2动态插接，撑开静接点片2，弹性接点片对接点环产生一定的压力，使静接点片2、接点环可靠接触，静接点片2主要起导电功能，并提供一定的接触压力，补强片3主要提供接点的预压力。动接点组在使用过程中做旋转运动，在动接点环7与静接点片2的接触和脱开的过程中均具有一定的扫程，动接点环7进入静接点片2后接通电路，动接点环7退出静接点片2后，断开电路。如图2、图3、图4所示，本申请涉及一种防电弧损伤的方法，所述方法至少包括左静接点组、右静接点组和动接点组，动接点组在左静接点组、右静接点组中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触，所述的静接点组包括静接点块1、静接点片2、补强片3、接线螺柱4、紧固件5和静接点座，接线螺柱4固定在静接点座上，多个并排的静接点座固定在静接点块1上；由两个静接点片2和两个补强片3形成一组左右弹性夹持电极，两个静接点片2和两个补强片3中的一个静接点片2和一个补强片3错位叠层在一起，形成弹性夹持电极片的左弹性电极或右弹性电极；另一个静接点片2和另一个补强片3叠层在一起，形成弹性夹持电极片的右弹性电极或左弹性电极，弹性夹持电极片通过紧固件5固定在接线螺柱4上。
所述的动接点组包括动接点块6、动接点环7、挡环8和接点柱，动接点块6中心轴上端固定有接点柱，中心轴与接点柱同轴，接点块6固定在旋转摆动机构上，旋转摆动机构使接点柱左右摆动；动接点环7穿于动接点块6的接点柱上，动接点环7上部有挡环8止挡；接线柱上外接电路，左右弹性夹持电极片与动接点环7形成动态连接。
如图4所示，在初始位置，动接点环7打入静接点片2，接通左侧接点的电路，动接点环与左右弹性夹持电极片为线接触，由于动接点环7在随动接点组件旋转摆动过程中，动接点环7自身会随机转动，动接点环7在图4所示的C环形区域均可能参与电路接通。
如图5所示：动接点环7向右侧摆动，动接点环(7)脱开左右弹性夹持电极片，断开左侧接点的电路；电弧产生于动接点环(7)与静接点片2的最后脱离点B点的位置，由于动接点环7在随动接点组件旋转摆动过程中，动接点环7自身会随机转动，电弧会在动接点环7的B点处形成一圈电弧烧蚀，B处的环形烧蚀位于C环形区域下方。
如图6所示：动接点环7继续向右侧摆动，转向右侧接点。
如图7所示：动接点环7开始接通右侧接点的静接点片2。
如图8所示：动接点环7摆动到终止位置，动接点组停止转动，动接点环7可靠接通右侧接点的电路，在最终的接通位置，图3所示的B区域电弧烧蚀位置不参与电路接通。位于图3所示的C区域参与电路接通。
本申请的有益效果是使动接点环电弧烧蚀位置下移，使电弧烧蚀位置不参与接点组的最终接触，避免电弧烧蚀影响到接点的接通。

Claims (6)

  1. 一种防电弧损伤的转辙机接点组，其特征是：至少包括左静接点组、右静接点组和动接点组，其中，动接点组在左静接点组、右静接点组中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触。
  2. 根据权利要求1所述的一种防电弧损伤的转辙机接点组，其中，所述的静接点组包括静接点块(1)、静接点片(2)、补强片(3)、接线螺柱(4)、紧固件(5)和静接点座，接线螺柱(4)固定在静接点座上，多个并排的静接点座固定在静接点块(1)上；静接点片(2)、补强片(3)依次通过紧固件(5)固定在接线螺柱(4)上；由两个静接点片(2)和两个补强片(3)形成一组左右弹性夹持电极，两个静接点片(2)和两个补强片(3)中的一个静接点片(2)和一个补强片(3)错位叠层在一起，形成弹性夹持电极片的左弹性电极或右弹性电极；另一个静接点片(2)和另一个补强片(3)叠层在一起，形成弹性夹持电极片的右弹性电极片或左弹性电极。
  3. 根据权利要求1所述的一种防电弧损伤的转辙机接点组，其中，所述的动接点组包括动接点块(6)、动接点环(7)、挡环(8)和接点柱，动接点块(6)中心轴上端固定有接点柱，中心轴与接点柱同轴，动接点块(6)固定在旋转摆动机构上，旋转摆动机构使接点柱左右摆动；动接点环(7)穿于动接点块(6)的接点柱上，动接点环(7)上部有挡环(8)止挡；接线柱上外接电路，左右弹性夹持电极片与动接点环(7)形成动态连接。
  4. 根据权利要求2所述的一种防电弧损伤的转辙机接点组，其中，所述左右弹性夹持电极片在通常状态下开口尺寸为12mm。
  5. 根据权利要求3所述的一种防电弧损伤的转辙机接点组，其中，所属动接点环(7)的直径为14mm。
  6. 一种防电弧损伤的方法，至少包括左静接点组、右静接点组和动接点组，其中，动接点组在左静接点组、右静接点组的中间位置，动接点组通过旋转摆动与左静接点组和右静接点组形成交替动态电接触，所述的静接点组包括静接点块(1)、静接点片(2)、补强片(3)、接线螺柱(4)、紧固件(5)和静接点座，接线螺柱(4)固定在静接点座上，多个并排的静接点座固定在静接点块(1)上；由两个静接点片(2)和两个补强片(3)形成一组左右弹性夹持电极，两个静接点片(2)和两个补强片(3)中的一个静接点片(2)和一个补强片(3)错位叠层在一起，形成弹性夹持电极片的左弹性电极或右弹性电极；另一个静接点片(2)和另一个补强片(3)叠层在一起，形成弹性夹持电极片的右弹性电极或左弹性电极，弹性夹持电极片通过紧固件(5)固定在接线螺柱(4)上；
    所述动接点组包括动接点块(6)、动接点环(7)、挡环(8)和接点柱，动接点块(6)中心轴上端固定有接点柱，中心轴与接点柱同轴，接点块(6)固定在旋转摆动机构上，旋转摆动机构使接点柱左右摆动；动接点环(7)穿于动接点块(6)的接点柱上，动接点环(7)上部有挡环(8)止挡；接线柱上外接电路，左右弹性夹持电极片与动接点环(7)形成动态连接；
    动接点组在初始位置，动接点组的动接点环(7)打入左右弹性夹持电极片，接通左侧接点的电路，动接点环(7)与左右弹性夹持电极片为线接触；
    动接点环(7)向右侧摆动，动接点环(7)脱开左右弹性夹持电极片，断开左侧接点的电路；电弧产生于动接点环(7)与左右弹性夹持电极片的最后脱离点的位置，由于动接点环(7)在随动接点组件旋转摆动过程中，动接点环(7)自身会随机转动，电弧会在动接点环(7)的一处形成一圈电弧烧蚀；
    动接点环(7)继续向右侧摆动，转向左静接点组和右静接点组中间位置；
    动接点环(7)继续向右侧摆动，动接点环(7)开始接通右侧接点的左右弹性夹持电极片；
    动接点环(7)摆动到右静接点组位置，动接点组停止转动，动接点环(7)可靠接通右侧接点的电路，在最终的接通位置；
    动接点组从右侧静接点组摆动至左侧静接点组的过程与上述过程相同，摆动方向相反。
PCT/CN2019/099476 2019-04-12 2019-08-06 一种防电弧损伤的转辙机接点组及方法 WO2020206889A1 (zh)

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