Unlock instant, AI-driven research and patent intelligence for your innovation.

A three-position isolating switch actuator

A technology of isolating switches and actuators, applied in the direction of air switch components, etc., to achieve the effect of preventing misoperation

Active Publication Date: 2020-09-01
河北佰纳德自控仪表有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the high-voltage power transmission and distribution system, any possible misoperation must be eliminated, so it is necessary to design two three-position isolating switch actuators to prevent misoperation safety devices, mechanical limit and mechanical locking function devices, which are adopted in the design as mentioned above. The mechanical speed change has a self-locking function, and the above two limit locking devices can effectively prevent the misoperation of the isolation / grounding switch, so as to overcome the lack of safety in the current practical application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A three-position isolating switch actuator
  • A three-position isolating switch actuator
  • A three-position isolating switch actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 1-3 , in the embodiment of the present invention, a three-position isolating switch actuator includes a main casing 21, and the planetary transmission mechanism 4, the worm gear 5 and the reduction gear of the worm 7 are respectively arranged in the main casing 21, so that it can be rotated at 360° Arbitrarily set the rotation position within the range, the worm 7 and the worm wheel 5 are connected together, the upper part of the main casing 21 is equipped with an electric control box 20, and the electric control box 20 is respectively provided with a DC contactor 10 and an electromagnetic lock 11. One end of the worm 7 is connected with a hand output shaft 8, the hand output shaft 8 is connected with a manual handle 30, and the worm 7 is also connected with the electromagnetic lock 11, as figure 1 As shown, a DC motor 3 is installed on the left side of the main housing 21 , and the DC motor 3 is connected to the worm 7 through the planetary transmission mec...

Embodiment 2

[0037] see Figure 4 , the difference between this embodiment and embodiment 1 is:

[0038] In this embodiment, the electromagnetic lock 11 includes an electromagnet 22, an electromagnet seat 23, a worm pin shaft 24, a worm pin shaft sleeve 25, a screw pin shaft 26, a ring gear pin shaft sleeve 27, a ring gear pin shaft 28 and a locking Lever 29, described electromagnet 22 is installed on the electromagnet seat 23, and described locking lever 29 is installed on the electromagnet seat 23 by screw pin shaft 26 rotations, and one end of described locking lever 29 is hingedly provided with worm screw pin shaft 24, The worm pin 24 is connected with the worm 7, and the outer side of the worm pin 24 is matched with a worm pin sleeve 25; the other end of the locking lever 29 is hingedly provided with a ring gear pin 28, which is connected to the planetary gear 4, and the outer side of the ring gear pin shaft 28 is matched with a ring gear pin sleeve 27.

[0039] In addition to the a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of isolating switches and particularly discloses a three-position isolating switch actuating mechanism. The mechanism comprises a main case. A planetary speed-change mechanism, a worm gear and a worm are arranged in the main case. The worm and the worm gear are in matched connection with each other. A direct-current contactor and an electromagnetic lockare arranged in an electric control box on the upper portion of the main case. One end of the worm is connected with a hand-cranking output shaft. The worm is further connected with an electromagnetic lock. A direct-current motor is arranged on the left side of the main case and is connected with the worm through the planetary speed-change mechanism. The planetary speed-change mechanism is further connected with the electromagnetic lock. A microswitch and a cam which are matched with each other are arranged in a cam shell on the rear side of the main case. The cam is connected with a worm-wheel shaft. An output arm is further arranged at the outer end of the worm-wheel shaft. The mechanism has the mechanical locking function and various safe and reliable performances. The mechanism can realize the accurate control so as to complete the rotation action on the isolating / grounding switch position of a high-voltage power transmission and distribution system.

Description

technical field [0001] The invention relates to the technical field of isolating switches, in particular to a three-position isolating switch actuator. Background technique [0002] High-voltage isolation / grounding switches are commonly used electrical components in high-voltage power transmission and distribution systems. The high-voltage isolating switch is mainly used to disconnect the circuit with no load current when it is opened, and to pass the current reliably when it is closed. The high-voltage grounding switch is used to ground the circuit to ensure safety during maintenance. The switch can realize the closing of the isolating switch and the closing of the grounding switch by driving and rotating the operating main shaft. [0003] In the high-voltage power transmission and distribution system, any possible misoperation must be eliminated, so it is necessary to design two three-position isolating switch actuators to prevent misoperation safety devices, mechanical ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/08
Inventor 李浩
Owner 河北佰纳德自控仪表有限公司