Novel arc surface contact left and right contact strips applicable to static contact group

Abstract

The invention discloses novel arc surface contact left and right contact strips applicable to a static contact group. A movable contact current collecting ring is arranged on one side of a contact main body; the contact main body consists of a shaft end, a main board and a contact end; the shaft end, the main board and the contact end adopt an integrated structure; the main board is arranged between the shaft end and the contact end; a mounting groove is formed in the centre of the shaft end; a terminal mounting hole is formed in one end of the shaft end in a run-through manner; and contact convex points are arranged on the outer surface of the contact end at equal intervals. According to the novel arc surface contact left and right contact strips applicable to the static contact group, the contact end of the contact main body is in direct contact with the movable contact current collecting ring, so that the contact end can properly clamp the movable contact current collecting ring tightly to generate a high power-on effect; when the contact main body and the movable contact current collecting ring are in high-frequency contact, a high-abrasion-resistant and high-strength working state is achieved; and therefore, the service lives of the contact main body and the movable contact current collecting ring are prolonged jointly, and the safety performance is improved.

Description

technical field [0001] The invention relates to the field of electromechanical technology, in particular to a novel arc surface contact left and right contact piece suitable for a static contact group. Background technique [0002] In the process of electromechanical interlocking, especially track signal operation, a signal in the opening direction that passes through or bypasses the vehicle operation is realized by the actions of the static contact group and the matching moving contact group on the electric switch machine. For this reason, the operation of the static and dynamic contact not only has high requirements on structural performance and service life, but also is suitable for the safe operation of the longest use in various harsh environments. However, in the prior art, the static and dynamic contact switch In the working mode of the group, the static contacts generally adopt the left and right contact pieces processed by beryllium bronze or phosphor copper. Conta...

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Problems solved by technology

[0002] In the process of electromechanical interlocking, especially track signal operation, a signal in the opening direction that passes through or bypasses the vehicle operation is realized by the actions of the static contact group and the matching moving contact group on the electric switch machine. For this reason, the operation of the static and dynamic contact not only has high requirements on structural performance and service life, but also is suitable for the safe operation of the longest use in various harsh environments. However, in the prior art, the static and dynamic contact switch In the working mode of the group, the static contacts generally adopt the left and right contact pieces processed by beryllium bronze or phosphor copper. Contact electrification, and the outer plate is used for reinforcement. Since the contact between the plate and the wheel is a line contact, its contact resistance is large, easy to generate arcs, poor safety performance, and short service life. At the same time, the static contact device is based on The phosphor copper sheet is processed into left and right contact pieces, and the device and the collector ring adopt the form of line contact. There are defects such as large contact resistance and easy arcing that seriously affect safe operation. Form a linear contact and produce forward and backward movement, so that the wear of these two contact pieces is large, there are a lot of safety hazards, and it is easy to cause poor contact, affect signal transmission, and cause a great safety accident

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