Switch point closure detector

Abstract

The invention discloses a switch point closure detector. The switch point closure detector comprises a base, a contact point group and a rotating mechanism. The rotating mechanism rotates in two directions respectively along with close contact and separation of switches, so that the contact point group is powered on and powered off. The contact point group and the rotating mechanism are both located on the base. The contact point group comprises a first contact point, a first starting sheet and a first roller mounted on the first starting sheet. The rotating mechanism is a gear set which comprises a gear, a close contact gear and a sector gear, wherein the close contact gear is coaxially and fixedly connected with the gear, the sector gear is meshed with the gear, the outer surface of the close contact gear is a concave-convex surface, the first roller is matched with the concave-convex surface of the close contact gear in a rolling mode, and the sector gear is connected with a movable part of one switch through a connecting rod group. The switch point closure detector converts linear displacement of a switch rail into rotational motion, achieves the purposes of detecting whether the switch rail and a stock rail are in close contact and whether a separated rail arrives in place by switching power-on and power-off of the contact point through the rotating mechanism, and is small in size and convenient to install.

Description

technical field [0001] The invention relates to the technical field of turnout switching equipment, in particular to a close-fit checker for a turnout. Background technique [0002] With the continuous development of high-speed and heavy-duty railways in my country, the number of turnouts has gradually increased, and its traction point has developed from a single point to two points, three points, or even more. Although the close contact between the tip rail and the basic rail or the core rail and the wing rail is guaranteed by the turnout traction equipment, it is also limited to a small distance at the traction point. When the distance between the two traction points is too long, when there is a gap between the tip rail and the basic rail or if the foreign object is too large, the driving will swing and even the safety will be lost. Therefore, it is particularly important to add a close-fit checker between multiple traction points of the turnout. The existing close-bondi...

AI Technical Summary

Problems solved by technology

The existing close-bonding checkers in China all adopt a linear motion method similar to the display part of the switch machine, and the following problems generally exist: as the wear and tear of the switch continues to increase, the beating of the switch rail when the vehicle passes the switch causes the movement of the display rod to cause wrong indication. Suitable for heart-rail installation, poor impact resistance and high loss

[0003] It can be seen that the existing turnout close-bonding checker obviously still has inconvenience and defects in structure, method and use, and needs to be further improved urgently.

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