Movable point linear movement mechanism for railway switch machine

Abstract

The invention relates to a movable point linear movement mechanism for a railway switch machine. The movable point linear movement mechanism comprises a driving block, an upper block and a lower blockof a center swinging body, a roller, a roller shaft, a movable point optical shaft, a bottom shell inner partition, a guide block and the like, and then the point-connection linear movement mechanismis formed. A traditional movable-point fan-shaped rotary motion mode is converted into a reciprocating linear motion mode, so that a basic structure of an integrated contact set is achieved. According to the mechanism, complete line contact can be achieved when the moving points are driven into the static points. A point switch and contact switch combination formed by the mechanism keeps a traditional left-right unit structure, but 90-degree rotation is achieved in the direction, and the direction is changed into the horizontal direction; and the static points are upper and lower elastic pieces with the same potential, and an electric contact redundancy point is added. The movable point linear movement mechanism has the advantages that the defects that a traditional device is point contact, breaking failure occurs at multiple positions, the contact pieces are deviated from one side and the like are overcome, the contact group is low in abrasion, flexible in movement, free of a clamping group, reliable in electrical action and free of faults and maintenance, and the electric contact life of the contact product is prolonged to a great extent.

Description

technical field [0001] The invention belongs to the technical field of railway turnout switch machines, and in particular relates to a moving point linear motion mechanism for railway switch machines. Background technique [0002] According to the data, the ordinary railway Xi'an Railway Station has only 5 platforms and 9 passenger lines, while the high-speed railway station Xi'an North Station has 18 platforms and 34 train lines, but the entry and exit lines are two lines, which requires entry and exit requirements Setting up nearly 10 times the number of switch machines for turnout switching puts forward higher requirements for the switching equipment, requiring trouble-free, maintenance-free switch machines and their contact groups with stable and reliable performance. The contact group is one of the most important electrical parts of the switch machine, and its reliable and stable electrical contact performance is particularly important when it is connected. The urban u...

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 an outdoor device 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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