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Operating mechanism of three-station switch

A technology of three-position switch and operating mechanism, which is applied in the direction of air switch components, etc., can solve the problems of three-position switch position change, operating mechanism damage, and no measures for forced stop when the operation is in place, so as to prevent misoperation, The effect of preventing overshoot

Active Publication Date: 2014-07-16
SHENYANG HUADE HIGH TECH ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Since there is no measure to force stop when the operation is in place, if the control circuit fails during electric operation and the motor cannot stop in place, it will cause the three-position switch to overshoot, resulting in damage to the operating mechanism;
[0004] (2) Since the status indicating device needs to be realized through a gear reduction mechanism, the structure is complex and the failure rate is high;
[0005] (3) Since there is no limit locking structure, turning the output shaft by external force may change the position of the three-position switch when no operation is performed;
[0006] (4) Since the manual operation holes for the isolation switch and the ground switch share one, it is easy to cause misoperation

Method used

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Embodiment Construction

[0097] The present invention includes a mechanism box 1, an electric drive component composed of a motor 10, an electromagnetic clutch 11 and an electric output gear 14, and a manual operation selection disc assembly assembly 2, a padlock assembly 3, a display rotary rod device 4, and a nut assembly. Assembly 5, inner core upper assembly assembly 6, inner core assembly assembly 12, lead screw spindle assembly assembly 13, mechanical clutch 19 and mechanism output shaft 20 are manually operated drive components.

[0098] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0099] Such as figure 1 As shown, the present invention includes a mechanism box 1, and the mechanism box 1 includes an operation panel 1.1, an upper cover 1.2, a rear plate 1.3, and a bottom bent plate 1.4 formed by connecting a left side plate, a right side plate, and a bottom plate;

[0100] Such as figure 2 As shown, the operation panel 1.1 is prov...

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Abstract

An operating mechanism for a three-position switch, which overcomes the problems of the existing operating mechanism that cause the overshoot of the three-position switch, the high failure rate of a state indicating device, and the easy change of the position of the three-position switch and easy misoperation. , is characterized by an electric drive part consisting of an electric motor, an electromagnetic clutch and an electric output gear, and consists of a manual operation selection plate assembly assembly, a padlock assembly, a display rotary rod device, a nut assembly assembly, an inner core assembly assembly, and a screw spindle assembly assembly. It constitutes a manually operated driving part with a mechanical clutch, and the beneficial effect is that it can effectively prevent the occurrence of overshoot and misoperation of the three-position switch and avoid the position change of the three-position switch; the mechanism state display device is matched with the switch set on the operation panel. The status symbol can accurately display the position of the three-position switch in real time. The display is intuitive and convenient, and the complicated gearbox structure is omitted.

Description

technical field [0001] The invention belongs to the technical field of power transmission and distribution equipment, and in particular relates to an operating mechanism for a three-position switch used for opening and closing a three-position switch in medium and high voltage switchgear. Background technique [0002] In the prior art, the operating mechanism of the three-position switch used for gas-insulated metal-enclosed switches includes a spring mechanism and a gear transmission mechanism, which are mainly composed of a motor, transmission parts and operating parts. The existing technical problems are: [0003] (1) Since there is no measure to force stop when the operation is in place, if the control circuit fails during electric operation and the motor cannot stop in place, it will cause the three-position switch to overshoot, resulting in damage to the operating mechanism; [0004] (2) Since the status indicating device needs to be realized through a gear reduction m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/10
Inventor 国世峥侯亚平张交锁周建光
Owner SHENYANG HUADE HIGH TECH ELECTRIC CO LTD
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