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Arc-resistant constant voltage static contact group, movable contact group and movable and static contact group for electric switch machine

A technology of static contact and switch machine, which is used in electrical equipment for manipulating turnouts or line circuit breakers, railway car body parts, railway signals and safety, etc., can solve the problem of easy arcing and other problems when the dynamic and static contacts are inserted or pulled out. , to achieve the effect of improving equipment safety and reducing arcing

Pending Publication Date: 2018-08-14
季志伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an arc-proof constant-voltage static contact group, a dynamic contact group and a dynamic and static contact group for electric switch machines, so as to solve the technical problem that electric arcs are easily generated when the dynamic and static contacts are inserted or pulled out in the prior art

Method used

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  • Arc-resistant constant voltage static contact group, movable contact group and movable and static contact group for electric switch machine
  • Arc-resistant constant voltage static contact group, movable contact group and movable and static contact group for electric switch machine
  • Arc-resistant constant voltage static contact group, movable contact group and movable and static contact group for electric switch machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as image 3 and Figure 4 As shown, the magnetic body 7 of the moving contact group is a magnetic ring, and the magnetic ring is arranged on the inner or outer side wall of the moving contact 6 by bonding, riveting, bolting or inlaying, and the height of the magnetic ring is not greater than the height of the moving contact 6 . The specific setting position of the magnetic ring can be selected according to the actual situation.

[0040] Such as Figure 5 and Figure 8 As shown, the moving contact 6 includes a fixed shaft 61 and a moving contact ring 62 movably sleeved on the fixed shaft 61. One end of the fixed shaft 61 is connected to the base body 5, and the magnetic ring is connected to the inner cavity of the moving contact ring 62 with an interference fit. Such as Figure 9 As shown, the inner diameter of the magnetic ring is larger than that of the fixed shaft 61 , and the magnetic ring and the movable contact ring 62 can rotate relative to the fixed shaft ...

Embodiment 2

[0043] The number of magnetic rings is at least one, and two adjacent magnetic rings are connected or spaced, such as Figure 6 As shown, the difference between embodiment 1 and embodiment 2 is that the number of magnetic rings is two, and the two magnetic rings are respectively arranged on the upper and lower parts of the moving contact 6, and the magnetic properties of the upper and lower parts of the two magnetic rings are the same. , that is, when the upper part of the magnetic ring is an N pole, all the upper parts of the magnetic ring are N poles.

Embodiment 3

[0045] Such as Figure 7 As shown, the difference between Embodiment 3 and Embodiment 2 is that an odd number of spiral grooves 621 are uniformly arranged on the outer circumference of the moving contact ring 62, and the two ends of each groove are respectively located on the upper surface of the moving contact ring 62. Along and down, and the top and bottom of two adjacent grooves are on a straight line. Through the setting of the groove, when the movable contact ring 62 is inserted or pulled out between the left and right contact pieces, since the contact area with the left and right contact pieces is different, the friction force between the left and right contact pieces is different. When the contact 6 is activated, the movable contact ring 62 can rotate, so that the friction part of the movable contact ring 62 is different from that of the left and right contact pieces each time, so as to avoid excessive local wear caused by the same friction part when inserting or pullin...

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Abstract

The invention provides an arc-resistant constant voltage static contact group, movable contact group and movable and static contact group for an electric switch machine, relates to the technical fieldof machine electricity, and solves the technical problem that when an existing movable and static contact group is connected or disconnected, electric arcs generate easily. The arc-resistant constantvoltage static contact group comprises a left contact strip and a right contact strip which are arranged oppositely, the left contact strip and the right contact strip are both provided with static contact group magnetic substances, and the static contact group magnetic substance located at the left contact strip and the static contact group magnetic substance located at the right contact strip are attracted through magnetic force; the arc-resistant constant voltage movable contact group comprises a base body and a movable contact, the movable contact is provided with a movable contact groupmagnetic substance, and the upper magnetic pole and lower magnetic pole of the movable contact group magnetic substance are opposite; and the arc-resistant constant voltage movable and static contactgroup comprises an arc-resistant constant voltage static contact group and an arc-resistant constant voltage movable contact group. The arcs generated in the process of inserting in or pulling out theleft contact strip and the right contact strip can be subverted through the magnetic line released by the static contact group magnetic substance and / or the movable contact group magnetic substance.

Description

technical field [0001] The invention relates to the field of electromechanical technology, in particular to an arc-proof constant-voltage static contact group, a moving contact group and a dynamic and static contact group for an electric switch machine. Background technique [0002] In railway transportation, the train runs on the track according to the signal, passing through the switch or changing the line continuously. The signal of the opening direction of the transfer line is realized by the action of the static contact group on the electric switch machine of the turnout, the moving contact group matched with it, and the indicating rod and other components. During the switching process of the traction switch of the electric switch machine, the moving contact group is also rapidly inserted and pulled out of the static contact group under the drive of the relevant components. When the moving contact group is pulled out from the static contact group, since the dynamic and...

Claims

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Application Information

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IPC IPC(8): B61L5/06
CPCB61L5/06B61L5/067
Inventor 季志伟
Owner 季志伟
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