The invention provides an arc-proof constant voltage static contact group, a moving contact group and a moving and static contact group for an electric switch machine, which relates to the electromechanical technical field and solves the technical problem that the existing dynamic and static contact groups are easy to produce arcs when they are connected or disconnected. The anti-arc constant voltage static contact group comprises a left contact piece and a right contact piece relatively arranged, and both the left contact piece and the right contact piece are provided with a static contact group magnetic body, and the static contact group magnetic body located on the left contact piece and the static contact group magnetic body on the right contact piece are attracted by magnetic force; the anti-arc constant voltage dynamic contact group includes a seat body. The magnetic poles of the upper and lower parts of the magnetic body of the movable contact group are opposite to those of the movable contact group. The arc-proof constant voltage dynamic and static contact group includes the arc-proof constant voltage static contact group and the arc-proof constant voltage dynamic contact group. The magnetic force lines released by the magnets of the static contact group and/or the moving contact group can reduce the arc generated in the process of inserting or pulling out the left contact piece and the right contact piece.
【技术实现步骤摘要】
电动转辙机用防弧恒压静接点组、动接点组及动静接点组
本专利技术涉及机电
,尤其是涉及一种电动转辙机用防弧恒压静接点组、动接点组及动静接点组。
技术介绍
在铁路运输中,列车在轨道上按信号运行,不断地途经道岔或经过道岔转线运行。这种转线开通方向的信号,是由道岔电动转辙机上的静接点组和与它偶配的动接点组及表示杆等构件的动作来实现的。电动转辙机牵引道岔转换过程中,其动接点组在有关构件的驱动下,也在快速的插入和拔出静接点组。在动接点组从静接点组上拔出时,由于动静接点组上带有高压380V电,在断开时瞬间空间电离层被击穿会产生电弧,电弧中心温度达4000℃,导致静接点组上的接点片和动接点组上的动接点环表面被灼烧,长期被灼烧后会表面发黑氧化,影响导通性能或发生故障导致信号错误,由此容易发生安全事故,电弧产生会延长转辙机电机的断电时间。
技术实现思路
本专利技术的目的在于提供一种电动转辙机用防弧恒压静接点组、动接点组及动静接点组,以解决现有技术中存在的动静接点插入或拔出时易产生电弧的技术问题。为实现上述目的,本专利技术提供了以下技术方案:本专利技术提供的一种电动转辙机用防弧恒压静接点组,包括静接点座和设置在所述静接点座上且位置相对的左接点片和右接点片;所述左接点片和所述右接点片上均设置有静接点组磁性体,且位于所述左接点片上的所述静接点组磁性体和所述右接点片上的所述静接点组磁性体之间通过磁力吸引;或,所述静接点座上设置有静接点组磁性体。作为本专利技术的进一步改进,所述静接点组磁性体为片状结构的磁片,所述磁片分别通过粘接、铆接、螺栓连接或镶接方式设置在所述左接点片和所述右接点 ...
【技术保护点】
1.一种电动转辙机用防弧恒压静接点组,其特征在于:包括静接点座(8)和设置在所述静接点座(8)上且位置相对的左接点片(1)和右接点片(2);所述左接点片(1)和所述右接点片(2)上均设置有静接点组磁性体(3),且位于所述左接点片(1)上的所述静接点组磁性体(3)和所述右接点片(2)上的所述静接点组磁性体(3)之间通过磁力吸引;或,所述静接点座(8)上设置有静接点组磁性体(3)。
【技术特征摘要】
1.一种电动转辙机用防弧恒压静接点组,其特征在于:包括静接点座(8)和设置在所述静接点座(8)上且位置相对的左接点片(1)和右接点片(2);所述左接点片(1)和所述右接点片(2)上均设置有静接点组磁性体(3),且位于所述左接点片(1)上的所述静接点组磁性体(3)和所述右接点片(2)上的所述静接点组磁性体(3)之间通过磁力吸引;或,所述静接点座(8)上设置有静接点组磁性体(3)。2.根据权利要求1所述的防弧恒压静接点组,其特征在于:所述静接点组磁性体(3)为片状结构的磁片,所述磁片分别通过粘接、铆接、螺栓连接或镶接方式设置在所述左接点片(1)和所述右接点片(2)外伸部(4)末端的内部、内侧、外侧、顶部或底部。3.根据权利要求1或2所述的防弧恒压静接点组,其特征在于:所述左接点片(1)或所述右接点片(2)上的所述静接点组磁性体(3)的数量为至少一个,相邻两个所述静接点组磁性体(3)之间贴合连接或留有间隔。4.一种电动转辙机用防弧恒压动接点组,其特征在于:包括座体(5)以及动接点(6),所述座体(5)或所述动接点(6)上设置有动接点组磁性体(7),所述动接点组磁性体(7)的上部和下部磁极相反。5.根据权利要求4所述的防弧恒压动接点组,其特征在于:所述动接点组磁性体(7)为磁环,所述磁环通过粘接、铆接、螺栓连接或镶接方式设置在所述动接点(6)内部或外侧壁上,且所述磁环高度不大于所述动接点(6...
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