CN218730761U

CN218730761U - Low-energy brake-separating tripping device for circuit breaker operating mechanism

Info

Publication number: CN218730761U
Application number: CN202222710572.1U
Authority: CN
Inventors: 杨和; 侯朝朋; 汪旭; 孙宽来; 雪向兵; 杨彬彬; 司亚南; 王慧; 赵太祥; 张迪; 郭亚川
Original assignee: Cooper Edison Pingdingshan Electronic Technologies Co Ltd
Current assignee: Cooper Edison Pingdingshan Electronic Technologies Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-24
Anticipated expiration: 2032-10-14

Abstract

The utility model provides a low energy separating brake trip gear that circuit breaker operating device used, including low energy trip coil, separating brake semi-axis drive plate and canceling release mechanical system, low energy trip coil's the end that moves corresponds separating brake semi-axis drive plate setting, the one end of separating brake semi-axis drive plate is located low energy trip coil's the end line that stretches ahead, the other end articulates on the fixed plate, canceling release mechanical system includes the drive cam, the actuating lever, the ejector pin upper bracket, the ejector pin lower carriage, ejector pin and elastic component, the drive cam rotates the setting, its lower extreme and the contact of actuating lever one end, the middle part of actuating lever articulates on the fixed plate, the other end top of actuating lever is in the bottom of fixing the elastic component on the ejector pin, the ejector pin upper bracket and the ejector pin lower carriage are setting from top to bottom and fix on the fixed plate, the both ends slidable of ejector pin passes ejector pin upper bracket and ejector pin lower carriage. The utility model discloses based on circuit breaker operating device increases low energy trip coil and canceling release mechanical system, effectual realization circuit breaker switch is reliable separating brake under low control voltage.

Description

Low-energy brake-separating tripping device for circuit breaker operating mechanism

Technical Field

The utility model relates to a circuit breaker technical field, what specifically says so is a low energy separating brake trip gear that circuit breaker operating device used.

Background

The circuit breaker cabinet in the market of part of areas has the functional requirements of being reliable and stable under the low control voltage and being capable of remotely controlling the opening, and the medium-voltage circuit breaker switch cabinet in the industry at present only generally has the function of performing the opening and closing action under the normal operation voltage, and can not meet the increasingly diversified requirements of the market.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a low energy separating brake trip gear that circuit breaker operating device used increases low energy trip coil and canceling release mechanical system based on circuit breaker operating device, and effectual realization circuit breaker switch is reliable separating brake under low control voltage.

In order to realize the technical purpose, the adopted technical scheme is as follows: the utility model provides a low energy separating brake trip gear that circuit breaker operating device used, be equipped with the fixed plate that is used for fixed separating brake trip gear, separating brake trip gear includes low energy trip coil, separating brake semi-axis drive plate and canceling release mechanical system, the moving end of fixing the low energy trip coil on the fixed plate corresponds separating brake semi-axis drive plate setting, one end of separating brake semi-axis drive plate is located low energy trip coil's moving end forward extension route, the other end of separating brake semi-axis drive plate articulates on the fixed plate, canceling release mechanical system includes the drive cam, the actuating lever, the ejector pin upper bracket, the ejector pin lower carriage, ejector pin and elastic component, the drive cam rotates and sets up on the fixed plate, the lower extreme of drive cam contacts with actuating lever one end, the middle part of actuating lever articulates on the fixed plate, the other end top of actuating lever is in the bottom of the elastic component who fixes on the ejector pin, ejector pin upper bracket and ejector pin lower carriage are setting from top to bottom and fix on the fixed plate, the slidable of both ends of ejector pin passes ejector pin upper bracket and ejector pin lower carriage.

Low energy trip coil's movable end and separating brake semi-axis drive pin between still be equipped with trip coil roof and separating brake semi-axis drive pin, separating brake semi-axis drive pin is fixed in the one end of separating brake semi-axis drive pin, the one end of trip coil roof corresponds low energy trip coil's movable end and separating brake semi-axis drive pin setting, the other end of trip coil roof articulates on the fixed plate.

Elastic component include compression gasket, overtravel spring, adjusting nut and reset spring, the compression gasket cover is on the ejector pin, is the screw thread section in the middle section of ejector pin, installs adjusting nut in this screw thread section, the cover is equipped with the overtravel spring on the ejector pin between adjusting nut and the compression gasket, the cover is equipped with reset spring on the ejector pin of adjusting nut top.

The gyro wheel is installed to the one end of actuating lever and drive cam contact, drive cam and gyro wheel cooperation contact.

The utility model has the advantages that:

1. the utility model discloses utilize low energy trip coil to realize the separating brake under low control voltage, the canceling release mechanical system through mechanical type realizes the reseing to low energy trip coil behind the separating brake to, canceling release mechanical system also can automatic re-setting, makes the repeated repetitious usage of low energy trip gear, except low energy trip coil, all the other parts all utilize mechanical characteristic, and whole separating brake trip gear is more reliable and more stable.

2. In order to enable the low-energy tripping coil to more stably push the opening half shaft driving plate, an opening half shaft driving pin and a tripping coil top plate are added, stable pushing is achieved through pushing of the plate and the pin, and when the low-energy coil moving end is pushed back, the pushing area is larger, and pushing can be more conveniently achieved.

3. Elastic component sets up to the dual spring form, and one of them over travel spring carries out the precompression through adjusting nut, prevents that the pressure that resets too big, when the low energy trip coil that resets, prevents that pressure too big can make the movable end warp or the fracture, reduces life-span and reliability, promotes the ejector pin through two compression springs, can come control pressure through the volume of spring compression.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1. the device comprises a fixed plate, 2, a trip coil bracket, 3, a low-energy trip coil, 4, a trip coil top plate, 5, a top plate rotating shaft, 6, a brake separating half shaft driving pin, 7, a brake separating half shaft driving plate, 8, a brake separating half shaft, 9, a reset spring, 10, an ejector rod upper bracket, 11, an ejector rod, 12, an adjusting nut, 13, an over travel spring, 14, a compression gasket, 15, an ejector rod lower bracket, 16, a driving rod, 17, a driving rod rotating shaft, 18, a driving cam, 19, a roller, 20, a mechanism output shaft, 21 and an auxiliary switch.

Detailed Description

The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to describe the technical solution of the present invention in detail. Here, the detailed description of the present invention will be given with reference to the accompanying drawings. It should be expressly understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit or restrict the present invention.

In the description of the present embodiment, the terms "inside", "outside", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, a low energy tripping device for a circuit breaker operating mechanism is applied to a 10kv to 24kv ring main unit, and is provided with a fixing plate 1 for fixing the tripping device, the fixing plate 1 can adopt a back plate of the circuit breaker operating mechanism, the tripping device comprises a low energy tripping coil 3, a tripping half-shaft drive plate 7 and a reset mechanism, the low energy tripping coil 3 is a bistable coil, a permanent magnet is used for keeping a suction state, after a moving end is compressed, energy of the low energy tripping coil is stored in a compressed spring, the low energy tripping coil 3 is fixed on the fixing plate 1 through a tripper bracket 2, a control loop of the low energy tripping coil 3 is connected in series with an auxiliary switch 21 of the circuit breaker operating mechanism, and when the circuit breaker operating mechanism is in a closing state, the control loop of the low energy tripping coil 3 is connected, and when the circuit breaker operating mechanism is in the opening state, the circuit is disconnected. After the breaker protection device gives a brake-separating signal, the electromagnetic force counteracts the attraction force of the permanent magnet, the energy of the spring is released, and the movable end is pushed out. Low energy means less electrical energy is required for the action. The opening half shaft drive plate 7 is connected with an opening half shaft of the breaker operating mechanism, and the opening operation mechanism corresponding to the opening half shaft is disconnected by rotating the opening half shaft drive plate 7. The reset mechanism can return the moving end of the low-energy trip coil 3 pushed out by the moving end to the original state, and the reset mechanism can reset itself.

The movable end of the low-energy trip coil 3 fixed on the fixed plate 1 is arranged corresponding to the opening half shaft drive plate 7, one end of the opening half shaft drive plate 7 is positioned on a movable end forward extension line of the low-energy trip coil 3, the movable end forward extension of the low-energy trip coil 3 directly pushes or indirectly pushes the opening half shaft drive plate 7 to rotate, the other end of the opening half shaft drive plate 7 is hinged on the fixed plate 1, the hinged part is connected with the opening half shaft 8, and the opening half shaft 8 can be rotated and tripped to realize opening along with the pushing of the opening half shaft drive plate 7.

The reset mechanism comprises a driving cam 18, a driving rod 16, an upper ejector rod support 10, a lower ejector rod support 15, an ejector rod 11 and an elastic assembly, wherein the elastic assembly is a compressible and reset elastic mechanism with a spring as a main component, the driving cam 18 is rotatably arranged on a fixed plate and connected with a mechanism output shaft 20, the mechanism output shaft 20 is a component of a circuit breaker operating mechanism, forward and reverse rotation is realized manually or mechanically, the lower end of the driving cam 18 is in contact with one end of the driving rod 16, the driving rod 16 is pushed to rotate when the driving cam 18 rotates, the middle part of the driving rod 16 is hinged on the fixed plate 1 through a driving rod rotating shaft 17, the other end of the driving rod 16 pushes against the bottom of the elastic assembly fixed on the ejector rod 11, the upper ejector rod support 10 and the lower ejector rod support 15 are vertically arranged and fixed on the fixed plate 1, two ends of the ejector rod 11 slidably penetrate through the upper ejector rod support 10 and the lower ejector rod support 15, the length of the ejector rod 11 is ensured to be pushed, the ejector rod 11 cannot be separated from the lower ejector rod support 15 when the ejector rod is pushed, the length of the ejector rod 11, the driving cam 18 rotates to push the elastic assembly, the elastic assembly to push the ejector rod to extend out, one end of the ejector rod 11 to push the original state of a low-energy coil 3, and drive the elastic assembly to rebound and drive the elastic assembly to rebound.

In order to realize stable pushing, an indirect pushing mode is adopted, a tripping coil top plate 4 and a tripping half-shaft driving pin 6 are further arranged between the moving end of the low-energy tripping coil 3 and the tripping half-shaft driving plate 7, the tripping half-shaft driving pin 6 is fixed at one end of the tripping half-shaft driving plate 7, one end of the tripping coil top plate 4 corresponds to the moving end of the low-energy tripping coil 3 and the tripping half-shaft driving pin 6, the other end of the tripping coil top plate 4 is hinged on the fixing plate 1 through a top plate rotating shaft 5, namely, the low-energy tripping coil 3 firstly pushes the tripping coil top plate 4 to rotate, and the tripping half-shaft driving pin 6 is pushed by the tripping coil top plate 4 to drive the tripping half-shaft driving plate 7 to rotate. And, through the board promotion, the hole that ejector pin 11 wore out from ejector pin upper bracket 10 can be bigger, is not afraid of to wait to push away the part to the alignment, and the resistance that resets is little, resets more easily.

The elastic component comprises a compression gasket 14, an over travel spring 13, an adjusting nut 12 and a reset spring 9, the compression gasket 14 is sleeved on the ejector rod 11, the middle section of the ejector rod 11 is a threaded section, the adjusting nut 12 is installed on the threaded section, the distance between the adjusting nut and the compression gasket 14 can be adjusted by rotating the adjusting nut, the over travel spring 13 is sleeved on the ejector rod 11 between the adjusting nut 12 and the compression gasket 14, two ends of the over travel spring 13 are pushed up by the driving rod, the compression amount of the over travel spring 13 can be preset to control pushing pressure, the pressure is prevented from being too large when the driving rod 16 is pushed up, the movable contact can be deformed or broken, the reset spring 9 is sleeved on the ejector rod 11 above the adjusting nut 12, the optimal setting state of two ends of the reset spring 9 is before resetting is not performed, two ends of the reset spring 9 are respectively contacted with the adjusting nut 12 and the upper support 10 of the ejector rod, but are not in the compression state.

The roller 19 is arranged at one end of the driving rod 16, which is contacted with the driving cam 18, and the driving cam 18 is in fit contact with the roller 19, so that the driving is smoother.

The specific implementation method comprises the following steps:

when the mechanism is in a closing state, after a system sends a brake-separating signal, the moving end of the low-energy trip coil 3 is ejected out, the trip coil top plate 4 is pushed to rotate clockwise around the top plate rotating shaft 5, the end part of the trip coil top plate 4 pushes the brake-separating half shaft driving plate 7 to drive the brake-separating half shaft 8 to rotate anticlockwise through the brake-separating half shaft driving pin 6 welded on the brake-separating half shaft driving plate 7, and the brake-separating tripping of the circuit breaker operating mechanism is realized. Or the movable end of the low-energy trip coil 3 is ejected out, and the opening half shaft driving plate is directly pushed to drive the opening half shaft 8 to rotate anticlockwise, so that opening is realized.

After the mechanism is opened, the mechanism output shaft 20 and a driving cam 18 installed on the mechanism output shaft 20 rotate anticlockwise, the driving cam 18 pushes a driving rod 16 to rotate clockwise around a driving rod rotating shaft 17 installed on a mechanism plate 1 through a roller 19, the left end of the driving rod 16 pushes a compression gasket 14 to compress an over-travel spring 13, the upper end of the over-travel spring 13 pushes an adjusting nut 12 to drive a mandril 11 to move up and down, the mandril 11 pushes a tripping coil top plate 4 to rotate anticlockwise around a top plate rotating shaft 5, the moving end of a low-energy tripping coil 3 is pressed back to the initial position, and the resetting of a half-shaft driving plate 7 is realized by a reset spring on a half shaft of the opening brake.

After the mechanism is opened and tripped, the auxiliary switch 21 is switched to disconnect the control loop of the low-energy tripping coil 3.

When the mechanism is switched on, the mechanism output shaft 20 and the driving cam 18 installed on the mechanism output shaft 20 rotate clockwise, the driving cam 18 leaves the roller 19, and the return spring 9 pushes the ejector rod 11 to move downwards to return to the initial position.

The above are merely preferred examples of the present invention, and are not intended to limit or restrict the present invention. Various modifications and alterations of this invention will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a low energy separating brake trip gear that circuit breaker operating device used, is equipped with fixed plate (1) that is used for fixed separating brake trip gear, its characterized in that: the brake separating tripping device comprises a low-energy tripping coil (3), a brake separating half shaft drive plate (7) and a reset mechanism, the movable end of the low-energy tripping coil (3) fixed on a fixed plate (1) is arranged corresponding to the brake separating half shaft drive plate (7), one end of the brake separating half shaft drive plate (7) is positioned on a forward extending route of the movable end of the low-energy tripping coil (3), the other end of the brake separating half shaft drive plate (7) is hinged on the fixed plate (1), the reset mechanism comprises a drive cam (18), a drive rod (16), an upper ejector rod support (10), a lower ejector rod support (15), an ejector rod (11) and an elastic assembly, the drive cam (18) is rotatably arranged on the fixed plate, the lower end of the drive cam (18) is in contact with one end of the drive rod (16), the middle part of the drive rod (16) is hinged on the fixed plate (1), the other end of the drive rod (16) abuts against the bottom of the elastic assembly fixed on the ejector rod (11), the upper ejector rod support (10) and the lower ejector rod support (15) are arranged and fixed on the fixed plate (1) in a sliding mode.

2. The low energy trip release of claim 1, wherein: still be equipped with trip coil roof (4) and separating brake semi-axis drive pin (6) between the end of moving of low energy trip coil (3) and separating brake semi-axis drive plate (7), separating brake semi-axis drive pin (6) are fixed in the one end of separating brake semi-axis drive plate (7), the end of trip coil roof (4) corresponds the end of moving of low energy trip coil (3) and the setting of separating brake semi-axis drive pin (6), the other end of trip coil roof (4) articulates on fixed plate (1).

3. The low energy trip release of claim 1, wherein: elastic component includes compression gasket (14), overtravel spring (13), adjusting nut (12) and reset spring (9), compression gasket (14) cover is on ejector pin (11), be the screw thread section in the middle section of ejector pin (11), install adjusting nut (12) on the screw thread section, the cover is equipped with overtravel spring (13) on ejector pin (11) between adjusting nut (12) and compression gasket (14), the cover is equipped with reset spring (9) on ejector pin (11) of adjusting nut (12) top.

4. The low energy trip release of claim 1, wherein: and a roller (19) is arranged at one end of the driving rod (16) contacted with the driving cam (18), and the driving cam (18) is in matched contact with the roller (19).