CN210956545U - Novel ring main unit spring operating mechanism - Google Patents

Abstract

The utility model discloses a novel spring operating mechanism for a ring main unit, which comprises a main frame, an energy storage driving assembly, an energy storage assembly, a closing assembly and a separating brake assembly; energy storage drive assembly, energy storage subassembly, combined floodgate subassembly, separating brake subassembly all establish on the main frame the utility model discloses simple structure, spare part is small in quantity, and the assembly, the debugging and the maintenance of being convenient for have reduced mechanism complex complexity, have improved the reliability of whole mechanism operation.

Description

Novel ring main unit spring operating mechanism

Technical Field

The utility model relates to a high-voltage distribution equipment technical field especially relates to a novel ring main unit is with spring operating device.

Background

The ring main unit is a commonly used power distribution device in the technical field of high-voltage power distribution devices. Vacuum circuit breakers on existing high voltage distribution equipment basically employ spring operated mechanisms. The existing spring operating mechanism has the defects of large volume, more parts, messy overall layout, difficulty in adjusting the mechanism and the like, so that the defects of poor reliability and high maintenance cost exist.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem mentioned in the above-mentioned background art, the utility model provides a novel looped netowrk is spring operating device for cabinet, simple structure, spare part is small in quantity.

A novel spring operating mechanism for a ring main unit comprises a main frame, an energy storage driving assembly, an energy storage assembly, a closing assembly and a breaking assembly;

the main frame comprises a front side plate and a rear side plate, and the front side plate and the rear side plate are connected through a supporting block;

the energy storage driving assembly comprises an energy storage motor arranged on the outer wall of the front side plate, an output shaft of the energy storage motor is connected with a driving shaft, the driving shaft is rotatably connected between the front side plate and the rear side plate, and a driving gear is fixedly sleeved on the driving shaft;

the energy storage assembly comprises a closing spring, one end of the closing spring is fixedly connected to the outer wall of the front side plate, the other end of the closing spring is connected with an energy storage shaft through an energy storage crank arm, the energy storage shaft is rotatably connected between the front side plate and the rear side plate, an energy storage cam is fixedly sleeved on the energy storage shaft, a limiting pin is connected to the end face of the energy storage cam, an energy storage gear matched with the driving gear is further rotatably sleeved on the energy storage shaft, an energy storage pawl is connected to the end face of the energy storage gear, and the energy storage pawl is used for driving the energy storage cam to rotate;

the switching-on assembly comprises a switching-on half shaft and a switching-on electromagnet arranged on the outer wall of a rear side plate, the switching-on electromagnet is used for driving the switching-on half shaft to rotate, the switching-on half shaft is rotatably connected between a front side plate and the rear side plate, a switching-on pawl shaft is also fixedly connected between the front side plate and the rear side plate, the switching-on pawl shaft is rotatably sleeved with a switching-on pawl, and two ends of the switching-on pawl are respectively matched with a limiting pin and the switching-on half shaft;

the brake separating assembly comprises a brake separating half shaft and a brake separating electromagnet arranged on the outer wall of a rear side plate, the brake separating electromagnet is used for driving the brake separating half shaft to rotate, the brake separating half shaft is rotatably connected between a front side plate and the rear side plate, a main shaft can be further rotatably connected between the front side plate and the rear side plate, a driving arm is fixedly sleeved on the main shaft, a brake separating pawl shaft fixedly connected between the front side plate and the rear side plate is arranged on one side of the driving arm, a brake separating pawl is rotatably sleeved on the brake separating pawl shaft, and two ends of the brake separating pawl are respectively matched with the brake separating half shaft and the driving arm; the separating brake assembly further comprises a driving cam which is fixedly sleeved on the energy storage shaft, and the driving cam is used for driving the driving arm to rotate.

Furthermore, the closing pawl is connected with the closing pawl shaft through a first torsion spring, and the opening pawl is connected with the opening pawl shaft through a second torsion spring.

Furthermore, one end of the switching-on half shaft extends to the outside of the main frame and is fixedly connected with a switching-on push plate with a position corresponding to that of the switching-on electromagnet, and the switching-on electromagnet provides thrust for the switching-on push plate when being electrified so as to enable the switching-on half shaft to rotate; one end of the opening half shaft extends to the outside of the main frame and is fixedly connected with an opening push plate with a position corresponding to the position of the opening electromagnet, and the opening electromagnet provides thrust for the opening push plate when being electrified so as to enable the opening half shaft to rotate.

Furthermore, a first limiting column and a second limiting column are fixedly connected to the outer wall of the rear side plate;

a third torsion spring is arranged on the part of the switching-on half shaft extending out of the main frame, one torsion arm of the third torsion spring is buckled on the switching-on push plate, and the other torsion arm of the third torsion spring abuts against the first limiting column;

the part that the opening semi-axis extends outside the main frame is installed the fourth torsional spring, a torsion arm of fourth torsional spring is detained on the opening push pedal, another torsion arm of fourth torsional spring supports on the spacing post of second.

The utility model has the advantages that:

the utility model discloses simple structure, spare part is small in quantity, and the assembly, debugging and maintenance of being convenient for have reduced mechanism complex complexity, have improved the reliability of whole mechanism operation.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a rear view of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the present invention.

Fig. 4 is a schematic view of the internal structure at another viewing angle of the present invention.

The energy storage mechanism comprises a front side plate 1, a rear side plate 2, an energy storage motor 3, a driving shaft 4, a driving gear 5, a closing spring 6, an energy storage shaft 7, an energy storage cam 8, a limiting pin 9, an energy storage gear 10, an energy storage pawl 11, a closing half shaft 12, a closing electromagnet 13, a closing pawl shaft 14, a closing pawl 15, an opening pawl 16, an opening half shaft 17, an opening electromagnet 18, a main shaft 18, a driving arm 19, an opening pawl shaft 20, an opening pawl 21, a driving cam 22, a closing push plate 23, an opening push plate 24, a first limiting column 25, a second limiting column 26, a third torsion spring 27 and a fourth torsion spring 28.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings by way of specific embodiments.

The spring operating mechanism for the novel ring main unit is characterized by comprising a main frame, an energy storage driving assembly, an energy storage assembly, a switching-on assembly and a switching-off assembly;

the main frame comprises a front side plate 1 and a rear side plate 2, and the front side plate 1 and the rear side plate 2 are connected through a supporting block;

the energy storage driving assembly comprises an energy storage motor 3 arranged on the outer wall of the front side plate 1, an output shaft of the energy storage motor 3 is connected with a driving shaft 4, the driving shaft 4 is rotatably connected between the front side plate 1 and the rear side plate 2, and a driving gear 5 is fixedly sleeved on the driving shaft 4;

the energy storage assembly comprises a closing spring 6, one end of the closing spring 6 is fixedly connected to the outer wall of the front side plate 1, the other end of the closing spring 6 is connected with an energy storage shaft 7 through an energy storage crank arm, the energy storage shaft 7 is rotatably connected between the front side plate 1 and the rear side plate 2, an energy storage cam 8 is fixedly sleeved on the energy storage shaft 7, a limiting pin 9 is connected to the end face of the energy storage cam 8, an energy storage gear 10 matched with the driving gear 5 is further rotatably sleeved on the energy storage shaft 7, an energy storage pawl 11 is connected to the end face of the energy storage gear 10, the energy storage pawl 11 is matched with the energy storage cam 8, and the energy storage pawl 11 is used for driving the;

the closing assembly comprises a closing half shaft 12 and a closing electromagnet 13 arranged on the outer wall of the rear side plate 2, the closing electromagnet 13 is used for driving the closing half shaft 12 to rotate, the closing half shaft 12 is rotatably connected between the front side plate 1 and the rear side plate 2, a closing pawl shaft 14 is also fixedly connected between the front side plate 1 and the rear side plate 2, a closing pawl 15 is rotatably sleeved on the closing pawl shaft 14, and two ends of the closing pawl 15 are respectively matched with the limiting pin 9 and the closing half shaft 12;

the opening component comprises an opening half shaft 16 and an opening electromagnet 17 arranged on the outer wall of the rear side plate 2, the opening electromagnet 17 is used for driving the opening half shaft 16 to rotate, the opening half shaft 16 is rotatably connected between the front side plate 1 and the rear side plate 2, and a main shaft 18 can be rotatably connected between the front side plate 1 and the rear side plate 2. The main shaft 18 is connected with two crank arms, one of the crank arms is connected with a tripping spring of a circuit breaker of the ring main unit, and the other crank arm is connected with an insulating pull rod of a movable contact of a solid-sealed pole of the circuit breaker of the ring main unit through a link mechanism (this is the prior art, and details are not repeated here). A driving arm 19 is fixedly sleeved on the main shaft 18, a brake separating latch shaft 20 fixedly connected between the front side plate 1 and the rear side plate 2 is arranged on one side of the driving arm 19, a brake separating latch 21 is rotatably sleeved on the brake separating latch shaft 20, and two ends of the brake separating latch 21 are respectively matched with the brake separating half shaft 16 and the driving arm 19; the opening component also comprises a driving cam 22 fixedly sleeved on the energy storage shaft 7, and the driving cam 22 is used for driving the driving arm 19 to rotate.

Wherein the closing pawl 15 is also elastically connected to the closing pawl shaft 14 by means of a first torsion spring, and the opening pawl 21 is also elastically connected to the opening pawl shaft 20 by means of a second torsion spring. The closing half shaft 12 and the opening half shaft 16 are both provided with half shaft openings.

One end of the switching-on half shaft 16 extends to the outside of the main frame and is fixedly connected with a switching-on push plate 23 with a position corresponding to that of the switching-on electromagnet 13, and the switching-on electromagnet 13 provides thrust for the switching-on push plate 23 when being electrified so as to enable the switching-on half shaft 12 to rotate; one end of the opening half shaft 16 extends to the outside of the main frame and is fixedly connected with an opening push plate 24 with the position corresponding to that of the opening electromagnet 17, and the opening electromagnet 17 provides thrust for the opening push plate 24 when being electrified so as to enable the opening half shaft 16 to rotate.

Wherein, the outer wall of the rear side plate 2 is fixedly connected with a first limit column 25 and a second limit column 26;

a third torsion spring 27 is mounted on the part of the closing half shaft 12 extending out of the main frame, one torsion arm of the third torsion spring 27 is buckled on the closing push plate 23, and the other torsion arm of the third torsion spring 27 abuts against the first limit column 25;

the part of the opening half shaft 16 extending out of the main frame is provided with a fourth torsion spring 28, one torsion arm of the fourth torsion spring 28 is buckled on the opening push plate 24, and the other torsion arm of the fourth torsion spring 28 is propped against the second limit column 26.

The utility model discloses an energy storage process: energy storage motor 3 drive shaft 4 rotates, and drive shaft 4 drives drive gear 5 and rotates, and drive gear 5 drives energy storage gear 10 and rotates, and sincere son 11 of energy storage on the energy storage gear 10 promotes energy storage cam 8 and rotates, and energy storage cam 8 drives energy storage axle 7 and rotates, and energy storage axle 7 elongates closing spring 6 through the energy storage connecting lever and carries out the energy storage. After the energy storage gear 10 rotates a certain angle, two ends of the closing pawl 15 respectively abut against the limit pin 9 and a half shaft opening of the closing half shaft 12 to keep an energy storage state.

A switching-on process: when the energy storage is completed, the closing push plate 23 is pushed by the closing electromagnet 13 to drive the closing half shaft 12 to rotate, the closing pawl 15 is separated from the closing half shaft 12, the limiting pin 9 is separated from the closing pawl 15, the energy storage shaft 7 is released from constraint, the closing spring 6 pulls the energy storage shaft 7 to rotate, the driving cam 22 on the energy storage shaft 7 impacts the driving arm 19 to enable the main shaft 18 to rotate, the main shaft 18 drives the moving contact of the breaker to close, and meanwhile, the opening spring of the breaker is lengthened. When the main shaft 18 rotates to the right position, the two ends of the opening pawl 21 respectively abut against the semi-axis opening of the opening semi-axis 16 and the driving arm 19, and at the moment, the closing state is achieved.

The brake opening process: the opening push plate 24 is pushed by the opening electromagnet 17 to drive the opening half shaft 16 to rotate, the opening half shaft 16 is separated from the opening pawl 21, the opening pawl 21 is separated from the driving arm 19, the main shaft 18 rotates under the driving of the opening spring, and the moving contact of the circuit breaker is opened.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (4)

1. A novel spring operating mechanism for a ring main unit is characterized by comprising a main frame, an energy storage driving assembly, an energy storage assembly, a switching-on assembly and a switching-off assembly;

the main frame comprises a front side plate and a rear side plate, and the front side plate and the rear side plate are connected through a supporting block;

the energy storage driving assembly comprises an energy storage motor arranged on the outer wall of the front side plate, an output shaft of the energy storage motor is connected with a driving shaft, the driving shaft is rotatably connected between the front side plate and the rear side plate, and a driving gear is fixedly sleeved on the driving shaft;

the energy storage assembly comprises a closing spring, one end of the closing spring is fixedly connected to the outer wall of the front side plate, the other end of the closing spring is connected with an energy storage shaft through an energy storage crank arm, the energy storage shaft is rotatably connected between the front side plate and the rear side plate, an energy storage cam is fixedly sleeved on the energy storage shaft, a limiting pin is connected to the end face of the energy storage cam, an energy storage gear matched with the driving gear is further rotatably sleeved on the energy storage shaft, an energy storage pawl is connected to the end face of the energy storage gear, and the energy storage pawl is used for driving the energy storage cam to rotate;

the switching-on assembly comprises a switching-on half shaft and a switching-on electromagnet arranged on the outer wall of a rear side plate, the switching-on electromagnet is used for driving the switching-on half shaft to rotate, the switching-on half shaft is rotatably connected between a front side plate and the rear side plate, a switching-on pawl shaft is also fixedly connected between the front side plate and the rear side plate, the switching-on pawl shaft is rotatably sleeved with a switching-on pawl, and two ends of the switching-on pawl are respectively matched with a limiting pin and the switching-on half shaft;

the brake separating assembly comprises a brake separating half shaft and a brake separating electromagnet arranged on the outer wall of a rear side plate, the brake separating electromagnet is used for driving the brake separating half shaft to rotate, the brake separating half shaft is rotatably connected between a front side plate and the rear side plate, a main shaft can be further rotatably connected between the front side plate and the rear side plate, a driving arm is fixedly sleeved on the main shaft, a brake separating pawl shaft fixedly connected between the front side plate and the rear side plate is arranged on one side of the driving arm, a brake separating pawl is rotatably sleeved on the brake separating pawl shaft, and two ends of the brake separating pawl are respectively matched with the brake separating half shaft and the driving arm; the separating brake assembly further comprises a driving cam which is fixedly sleeved on the energy storage shaft, and the driving cam is used for driving the driving arm to rotate.

2. The novel ring main unit spring operating mechanism as claimed in claim 1, wherein the closing pawl is further connected with the closing pawl through a first torsion spring, and the opening pawl is further connected with the opening pawl through a second torsion spring.

3. The novel spring operating mechanism for the ring main unit as claimed in claim 1, wherein one end of the switching-on half shaft extends to the outside of the main frame and is fixedly connected with a switching-on push plate with a position corresponding to that of the switching-on electromagnet, and the switching-on electromagnet provides thrust for the switching-on push plate when being powered on so as to enable the switching-on half shaft to rotate; one end of the opening half shaft extends to the outside of the main frame and is fixedly connected with an opening push plate with a position corresponding to the position of the opening electromagnet, and the opening electromagnet provides thrust for the opening push plate when being electrified so as to enable the opening half shaft to rotate.

4. The novel spring operating mechanism for the ring main unit as claimed in claim 3, wherein the outer wall of the rear side plate is fixedly connected with a first limiting column and a second limiting column;

a third torsion spring is arranged on the part of the switching-on half shaft extending out of the main frame, one torsion arm of the third torsion spring is buckled on the switching-on push plate, and the other torsion arm of the third torsion spring abuts against the first limiting column;

the part that the opening semi-axis extends outside the main frame is installed the fourth torsional spring, a torsion arm of fourth torsional spring is detained on the opening push pedal, another torsion arm of fourth torsional spring supports on the spacing post of second.

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