High-voltage cabinet stroke switch control device

Abstract

The invention relates to a high-voltage cabinet stroke switch control device comprising a rotary shaft of a grounding switch and a collision block installed on the rotary shaft, wherein a groove is arranged on the outer wall of the rotary shaft, and the collision block is fixed on the rotary shaft by a fastener through a fastening screw hole. The high-voltage cabinet stroke switch control device is characterized in that a radially extended lug is arranged on the inner hole wall of the collision block, the shape of the lug is consistent with that of the groove, and the fastening screw hole extends to the end face of the lug. In the invention, since the lug is arranged on the inner hole wall of the collision block and the original fastening screw hole extends to the end face of the lug, thecollision block can be firmly positioned on the rotary shaft by the lug embedded in the groove under the fastening of a fastening screw, and the working face of the collision block collides with the contact of a stroke switch so that the loosening phenomenon can not be caused between the collision block and the rotary shaft. In addition, after the working face of the original collision block is charged into a flat arc shape from a conical arc shape, the collision time of the collision block to the contact of the stroke switch is increased, thereby solving the problem of insufficient closure and opening display of the stroke switch.

Description

【Technical field】 [0001] The invention belongs to a travel switch control device for a high-voltage cabinet, in particular to a device installed in a high-voltage cabinet and using a JN15 grounding switch to control the travel switch. 【Background technique】 [0002] The structure of the existing JN15 grounding switch to control the travel switch is as follows: figure 1 shown. A cam type striker g is arranged on the rotating shaft a of the earthing switch. When working, when the rotating shaft a rotates leftward or rightward, the working surface f carrying the collision block g conflicts with the travel switch contact d installed on one side, thereby controlling the opening and closing of the travel switch. [0003] The existing structure has the following problems: 1. The inner hole of the collision block g is a round hole, and the rotating shaft a is a profile with a groove b on the outer wall surface. The collision block g is fixed and installed on the outer wall surface...

AI Technical Summary

Problems solved by technology

[0003] The existing structure has the following problems: 1. The inner hole of the collision block g is a round hole, and the rotating shaft a is a profile with a groove b on the outer wall surface. The collision block g is fixed and installed on the outer wall surface of the rotating shaft a through the set screw e

During operation, the rotating shaft a drives the bumper g to collide with the travel switch contact d, which easily causes the set screw e to loosen. Therefore, the bumper g cannot be reliably fixed on the rotating shaft a, thereby affecting the control of the travel switch. poor reliability

2. The contact stroke between the bumper g and the contact point d of the travel switch is too short, which may easily cause the travel switch to be closed and closed in place, and the switch cabinet cannot normally display whether it is closed or closed.

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