Integrated sealed type contact set for railway

Abstract

The invention discloses an integrated sealed type contact set for a railway. The contact set comprises a bottom shell, an upper shell, a center swing body, a static point unit, a movable contact, a driving block, an insulation protective cover and a binding post. The integrated sealed type contact set for the railway is a sealed insulation integrated contact unit, the original installation and appearance shape are not changed almost, the contact set can be completely interchanged with existing contacts, the functions are greatly upgraded, during installation use, no regulation is needed, and the contact set is simple and rapid; the electric contact redundancy technology, the reciprocating linear motion technology, the concave-convex nested physical isolation technology, the integrated sealed technology, the interchangeability technology and the like are adopted; polished shafts, bearings and the rolling technology are adopted at multiple positions, so that the contact set is low in abrasion, flexible in motion rotation, free of clamping, reliable in electrical motion, long in service life, free of faults and free of maintenance when in use, the highest requirement of the railway head office for the contact set is met through various tests, the electrical performance is reliable, and stability and safety are achieved.

Description

technical field [0001] The invention relates to an integrated sealed contact group for railways, which belongs to the technical field of railway turnout switch machines. Background technique [0002] The contact group currently produced and used was designed in the 1970s and adapted to the planned economy era with few population movements and few material transportations. With the economic reform, the flow of talents, the development of tourism, the circulation of materials, and the development of international trade have put great pressure on railway transportation, which has been unable to meet the development of the national economy. Since April 1997, the railway has carried out 6 consecutive major speed increases, but passenger transportation still cannot meet the demand; in 2008, the high-speed railway had a certain scale, and in 2015, the high-speed railway entered a new journey, with advanced scale and strengthened management. The requirements are higher. The origin...

AI Technical Summary

Problems solved by technology

According to statistics, the existing contacts cannot complete 1 million times of normal use on site, and the equipment has been running with diseases for a long time. Normal operation of the train

The reason is that although the contacts are installed inside the switch machine, the switch machine equipment is outdoor equipment after all. It is subject to high temperature, high humidity, severe cold coastal weather conditions and air pollution, which naturally causes the contact surface to deteriorate, the contact resistance to increase, Insulation reduction, etc. In addition, man-made unintentional damage cannot be completely eliminated, which is a fatal flaw of open contacts

From the above situation, it can be seen that the existing technical solutions for joints can no longer meet the needs of high-speed railway passenger cars and subway operations, and the improved solutions cannot fundamentally solve the major problems existing in the original design.

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