CN218585905U

CN218585905U - Spring mechanism and circuit breaker

Info

Publication number: CN218585905U
Application number: CN202223000017.6U
Authority: CN
Inventors: 白旭; 徐晨; 何俊泓
Original assignee: Shunde City Foshan District Shun Chi Electric Co ltd
Current assignee: Shunde City Foshan District Shun Chi Electric Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-07
Anticipated expiration: 2032-11-10

Abstract

The utility model relates to a circuit breaker technical field specifically is a spring mechanism and circuit breaker, and spring mechanism includes energy storage drive arrangement and closing spring, energy storage drive arrangement can provide power to closing spring, energy storage drive arrangement includes gear box device and permanent magnetism direct current micro motor, through motor output shaft between permanent magnetism direct current micro motor and the gear box device, the gear box device includes one-way clutch, worm wheel, worm, box and plug-in operating handle, can be through hand mode drive spring mechanism, and it is more convenient to operate to have electronic and hand two kinds of drive mode concurrently.

Description

Spring mechanism and circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field especially relates to a spring mechanism and circuit breaker.

Background

The circuit breaker is an important device in an electric power system, and is a switching device capable of closing, bearing and opening current under an abnormal loop condition within a specified time.

At present, an energy storage driving device of a spring mechanism of an existing circuit breaker adopts an energy storage handle to swing up and down for driving, and the driving mode is inconvenient for power maintenance personnel to operate.

The above problems remain to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring mechanism and circuit breaker to solve at least one of the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the embodiment of the application discloses a spring mechanism, which comprises an energy storage driving device and a closing spring; the energy storage driving device can provide power to the closing spring and comprises a reduction box device and a permanent magnet direct current micro motor; the permanent magnet direct current micro motor is connected with the reduction box device through a motor output shaft; the reduction gearbox device comprises a one-way clutch, a worm gear, a worm, a box body and a plug-in operating handle; two sides of the box body are provided with circular through holes, the worm penetrates through the circular through holes, the first end and the second end of the worm are respectively arranged at the position of the circular through holes in a stretching-out distance mode, the pluggable operating handle is detachably arranged at the first end of the worm, the worm wheel is arranged on the inner side of the box body, and the one-way clutch is installed in the worm wheel inner hole in an interference mode.

Optionally, the permanent magnet direct current micro motor is provided with a square protrusion, circular through holes are formed above the box body of the reduction box device and above the square protrusion, and the motor output shaft penetrates through the circular through holes.

Optionally, the one-way clutch is sleeved outside the output shaft of the motor.

Optionally, the worm wheel is in tooth-shaped engagement with the worm.

Optionally, the plug-in operating handle includes a rod body, a handle and a joint, the handle and the joint are respectively transversely disposed at two ends of the rod body, and the handle and the joint are disposed on opposite sides of the rod body.

Optionally, a hexagonal groove is formed in the top end of the joint, a hexagonal protrusion is formed in the top of the first end of the worm, and the hexagonal groove of the handle joint and the hexagonal protrusion can be matched with each other.

Optionally, a circular through hole penetrates through the second end diameter surface of the worm, and a spring pin is inserted into the through hole.

The embodiment of the application further discloses a circuit breaker, the circuit breaker includes spring mechanism, spring mechanism is used for realizing the divide-shut brake operation of circuit breaker, its characterized in that, spring mechanism be as before spring mechanism.

The beneficial effects of the utility model reside in following at least one:

1. improve traditional energy storage handle luffing motion drive mode, adopt hand structure to drive, operating personnel is convenient laborsaving more.

2. Have concurrently that electronic and hand mode drives spring mechanism, the drive mode is more various.

Drawings

The invention is further explained below with reference to the drawings and examples:

fig. 1 is a schematic view of the overall structure of a circuit breaker switch operating mechanism;

FIG. 2 is a schematic view of the external structure of the spring mechanism of the present invention;

FIG. 3 is an exploded view of the reduction box assembly of the present invention;

FIG. 4 is a schematic view of the internal structure of the reduction box of the present invention;

fig. 5 is a schematic structural view of the plug-in operating handle of the present invention;

fig. 6 is a schematic view of the worm structure of the present invention.

In the figure: a permanent magnet direct current micro motor 1; a plug-in operating handle 2; a one-way clutch 3; a worm wheel 4; a box body 5; a worm 6; a reduction gearbox device 7; a motor output shaft 8; a handle 9; a joint 10; a shaft 11; a spring pin 12.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, which is a drawing of a patent with application number CN210223920A, and particularly, is a schematic diagram of an overall structure of a spring mechanism, and its content is a circuit breaker switch operating mechanism, which includes a gear transmission device, a kinetic energy input device, a closing device and an opening device, wherein energy storage devices are respectively disposed on two sides of the gear transmission device, the gear transmission device is connected with the kinetic energy input device, and the closing device and the opening device are linked with the energy storage devices; the circuit breaker switch operating mechanism can be controlled without people, energy is stored by an energy storage motor, the opening and closing are controlled by electric power, and the circuit breaker is automatically controlled. The utility model discloses then be provide an outside improvement scheme on a circuit breaker switch operating device's the basis, can with a circuit breaker switch operating device combines, realizes hand drive energy storage jointly.

Referring to fig. 2, fig. 3 and fig. 4, the utility model provides a spring mechanism, which comprises an energy storage driving device and a closing spring, wherein the energy storage driving device can provide power to the closing spring, the energy storage driving device can realize two energy storage driving modes of electric driving and hand driving, the energy storage driving device comprises a reduction box device 7 and a permanent magnet direct current micro motor 1, and the permanent magnet direct current micro motor 1 is connected with the reduction box device 7 through a motor output shaft 8; the reduction box device 7 comprises a one-way clutch 3, a worm wheel 4, a worm 6, a box body 5 and a plug-in operating handle 2; two sides of box 5 all are provided with circular through-hole, worm 6 runs through circular through-hole, the first end and the second end of worm are in respectively one section distance is stretched out to circular through-hole both sides, 2 detachable installations of plug-in operating handle are in the first end of worm 6, worm wheel 4 sets up the inboard at box 5, 3 interference mounting of one way clutch in 4 holes in the worm wheel. Hand energy storage drive mode mainly realizes through the reducing gear box device, reducing gear box device 7 can utilize the speed conversion between worm wheel 4 and the 6 gears of worm, the number of revolutions with the motor slows down to the number of revolutions of wanting, and can obtain great torque, therefore, operating personnel only need apply littleer power to plug-in operating handle 2 in operation process, increase the pivoted number of turns, just can transfer spring mechanism, make operating personnel operate convenience more, and electronic energy storage drive mode is then direct through 1 output power of permanent magnetism direct current micro motor to motor output shaft, realize electronic energy storage drive spring mechanism.

Referring to fig. 2, 3 and 4, the permanent magnet dc micro motor 1 is provided with a square protrusion, circular through holes are provided above the box body 5 of the reduction box device 7 and above the square protrusion, and the motor output shaft 8 penetrates through the circular through holes. The motor output shaft 8 penetrates through the circular through holes respectively, the reduction gearbox device 7 and the permanent magnet direct current micro motor 1 can be fixed together, and the permanent magnet direct current micro motor 1 can also provide power to the reduction gearbox device 7, so that the worm wheel 4 and the worm 6 are driven to rotate.

Referring to fig. 2 and 3, the one-way clutch 3 is sleeved outside the output shaft 8 of the motor. The worm 6 can drive 4 holes in the worm wheel in one-way clutch 3, one-way clutch 3 drives permanent magnet direct current micro motor 1's input, 1 output power of permanent magnet direct current micro motor to realize hand energy storage drive.

Referring to fig. 4, the worm wheel 4 is in tooth-shaped engagement with the worm 6, the number of teeth on the worm wheel 4 is different from that on the worm 6, and by setting different numbers of teeth, when the worm 6 rotates one turn, the worm wheel 4 rotates to a specified number of turns.

Referring to fig. 5, the plug-in operating handle 2 includes a shaft 11, a handle 9 and a joint 10, the handle 9 and the joint 10 are respectively transversely disposed at two ends of the shaft 11, and the handle 9 and the joint 10 are disposed at opposite sides of the shaft 11. In order to reduce the atress, adopt plug-in operating handle 2 to control worm 6 through the mode of increase moment and rotate, it is more convenient to operate.

Referring to fig. 5 and 6, a hexagonal groove is formed at the top end of the joint 10, a hexagonal protrusion is formed at the top of the first end of the worm 6, and the hexagonal groove and the hexagonal protrusion of the joint 10 of the plug-in operating handle 2 can be matched with each other. 2 tops of plug-in operating handle are equipped with the hexagon recess, the pole portion top that one section distance was stretched out to worm 6 adopts the hexagon arch, can realize rotating the in-process at plug-in handle 2 and can not the slippage, 6 tops of worm can be followed to plug-in operating handle 2, and convenient to detach maintains.

Referring to fig. 6, a through hole is formed through the second end diameter surface of the worm 6, and a spring pin 12 is inserted into the through hole. After the worm 6 is inserted into the through hole, in order to prevent the worm 6 from being taken out of the through hole again in the rotating process, the spring pin 12 is inserted into the through hole formed in the side surface of the extension rod, and in the process of rotating the plug-in operating handle 2, a backward force is carelessly exerted, the spring pin 12 is blocked by the side surface of the box body 5, and the worm 6 cannot be pulled out backwards continuously.

When circuit breaker spring mechanism is not supplied power, can adopt manual mode to come operating spring mechanism to carry out the divide-shut brake of circuit breaker, operating personnel fixes plug-in operating handle 2 worm 6 stretches out the pole portion top of one section distance, drives worm 6 through rotating plug-in operating handle 2 and rotates,

worm wheel

4 and 6 whole bodies of worm all are provided with dentate structure, the dentate structure intermeshing of worm wheel 4 and worm 6, and worm 6 rotates the rotation that drives worm wheel 4, and worm wheel 4 drives one-way clutch 3 in its inner bore, the drive of one-way clutch 3 permanent magnet direct current micro motor 1's input, the drive of 1 output of permanent magnet direct current micro motor realizes hand energy storage drive.

The utility model also provides a circuit breaker, this circuit breaker include spring mechanism, and spring mechanism is used for realizing the divide-shut brake operation of circuit breaker. The spring mechanism may employ the spring mechanism of the foregoing embodiment.

In the above embodiments, the apparatus elements are all conventional apparatus elements unless otherwise specified, and the connection manner and the control manner are all conventional connection manner and control manner unless otherwise specified.

While the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various changes can be made in the specific parameters of the embodiments without departing from the spirit of the present invention, and that various specific embodiments can be made, which are common variations of the present invention and will not be described in detail herein.

Claims

1. A spring mechanism comprises an energy storage driving device and a closing spring, and is characterized in that the energy storage driving device comprises a driving shaft and a driving shaft;

the energy storage driving device can provide power to the closing spring and comprises a reduction box device and a permanent magnet direct current micro motor;

the permanent magnet direct current micro motor is connected with the reduction box device through a motor output shaft;

the reduction gearbox device comprises a one-way clutch, a worm gear, a worm, a box body and a plug-in operating handle;

two sides of the box body are provided with circular through holes, the worm penetrates through the circular through holes, the first end and the second end of the worm are respectively arranged at the position of the circular through holes in a stretching-out distance mode, the pluggable operating handle is detachably arranged at the first end of the worm, the worm wheel is arranged on the inner side of the box body, and the one-way clutch is installed in the worm wheel inner hole in an interference mode.

2. The spring mechanism as claimed in claim 1, wherein the permanent magnet DC micro motor is provided with a square protrusion, a circular through hole is provided above the reduction box device box body and above the square protrusion, and the motor output shaft penetrates through the circular through hole.

3. The spring mechanism of claim 1, wherein the one-way clutch is sleeved outside the output shaft of the motor.

4. The spring mechanism of claim 1 wherein said worm gear is in toothed engagement with said worm.

5. The spring mechanism of claim 1, wherein the plug-in operating handle comprises a shaft, a handle and a joint, the handle and the joint are respectively transversely arranged at two ends of the shaft, and the handle and the joint are respectively arranged at different sides of the shaft.

6. The spring mechanism of claim 5, wherein the joint has a hexagonal recess at a top end thereof, and the worm screw has a hexagonal protrusion at a top end thereof, the hexagonal recess of the handle joint and the hexagonal protrusion being capable of engaging with each other.

7. The spring mechanism of claim 1, wherein a through hole is formed through the second end diameter surface of the worm screw, and a spring pin is inserted into the through hole.

8. A circuit breaker comprising a spring mechanism for effecting opening and closing operations of the circuit breaker, wherein the spring mechanism is as claimed in any one of claims 1 to 7.