Vibration resistant pointer type SF6 gas density controller

Abstract

The invention discloses a vibration-resisting indicator type SF6 gas density controller, which comprises a base, a C-shaped tube, a temperature compensation element, a core, a plurality of micro-switches, adjusting elements corresponding to the micro-switches and a contact operating shaft, wherein one end of the contact operating shaft is connected to a rotary shaft of a sector gear of the core and rotates along with the rotary shaft of the sector gear, threaded through holes in numbers corresponding to the adjusting elements are arranged along the length direction via intervals on the contact operating shaft, and each adjusting element is plugged in a threaded through hole. Due to the well positioning and limiting functions, the contact operating shaft can not swing, which thoroughly solves problems of locking the indicator or malfunction brought by misplacement of the micro-switches and the adjusting elements when the switches vibrating or the displacement of the C-shaped tube is larger than that of operating arms of the micro-switches. The invention has the advantages of high anti-vibration property, saving silicon oil, overcoming oil leakage and vibration resistance, which can be well applied to SF6 electronic equipments.

Description

technical field [0001] The invention relates to a controller, in particular to a controller used in SF 6 (Sulfur hexafluoride) Anti-vibration pointer type SF on electrical equipment 6 Gas Density Controller. Background technique [0002] SF 6 Electrical products have been widely used in the power sector, industrial and mining enterprises, and promoted the rapid development of the power industry. [0003] SF 6 The arc extinguishing medium and insulating medium of electrical products are SF 6 Gas, no gas leakage can occur. In the event of an air leak, SF cannot be guaranteed 6 Electrical products operate reliably and safely. So monitor SF 6 SF for electrical products 6 The density value is very necessary. [0004] At present, a mechanical pointer SF is generally used. 6 Gas density controller to monitor SF 6 Density, that is, when SF 6 When an electrical product leaks, the controller can alarm and lock, and at the same time display the density value on site. [0...

AI Technical Summary

Problems solved by technology

[0010] 1. Due to this SF 6 When the gas density controller vibrates strongly during the opening and closing operation of the switch, it will cause the micro switch operating arm to swing, which will easily cause false signal output and cannot guarantee the reliable operation of the system.

[0011] 2. Due to this SF 6 When the gas density controller vibrates strongly during the opening and closing operation of the switch, the pointer swings greatly, causing the position misalignment between the adjusting rod and the micro switch operating arm, and causing the adjusting rod to get stuck or detached from the micro switch operating arm, so that it cannot Ensure system works reliably

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