CN212010846U

CN212010846U - High-voltage vacuum circuit breaker accelerating brake-separating device

Info

Publication number: CN212010846U
Application number: CN202020502685.0U
Authority: CN
Inventors: 梁威魄; 陈芬
Original assignee: NanAn Power Supply Co of State Grid Fujian Electric Power Co Ltd
Current assignee: NanAn Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-24
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a high-pressure vacuum circuit breaker technical field, in particular to high-pressure vacuum circuit breaker is separating brake device with higher speed. Including the fixed bolster, the separating brake electromagnetism iron coil, the synchronizing bar, the activity push rod, the plug-in strip action bars, be equipped with the pin on the synchronizing bar, the torsional spring, separating brake electromagnetism iron coil is towards the pin, be equipped with the triangle shaft section on the synchronizing bar, the activity push rod is equipped with two, activity push rod one end articulates there is the couple, the couple can collude and establish on the triangle shaft section, and unhook from the triangle shaft section behind the synchronizing bar turned angle, the other end of the relative couple of two activity push rods is connected with the driving lever, the elongated hole has been seted up on the plug-in strip action bars, the driving lever passes the elongated hole, be equipped with the spring on the activity push rod, spring action is between fixed bolster and the activity push rod, the driving lever promotes. The high-voltage vacuum circuit breaker accelerating opening device is high in response speed and stability.

Description

High-voltage vacuum circuit breaker accelerating brake-separating device

Technical Field

The utility model relates to a high-pressure vacuum circuit breaker technical field, in particular to high-pressure vacuum circuit breaker is separating brake device with higher speed.

Background

The high-voltage vacuum circuit breaker is a protection and control unit of power grid equipment and power equipment of industrial and mining enterprises. The working response time and the working reliability of the circuit breaker are very important for safe production, so that a high-voltage vacuum circuit breaker with high response speed and high reliability needs to be designed.

SUMMERY OF THE UTILITY MODEL

For overcoming the deficiencies in the prior art, the utility model provides a high-voltage vacuum circuit breaker is separating brake device with higher speed.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a high-pressure vacuum circuit breaker is separating brake device with higher speed which characterized in that: the device comprises a fixed support, a brake separating electromagnet coil, a synchronizing rod, two movable push rods and a knife switch operating rod, wherein the synchronizing rod is provided with a stop rod extending laterally, the synchronizing rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with the fixed support, the other end of the torsion spring is hooked on the stop rod to position the axial position of the synchronizing rod, the brake separating electromagnet coil faces the stop rod, the brake separating electromagnet coil can push the stop rod to overcome the rotation of the second torsion spring to drive the synchronizing rod to rotate, the synchronizing rod is provided with a triangular shaft section, the movable push rods are provided with two movable push rods, one end of each movable push rod is hinged with a hook, the hooks can be hooked on the triangular shaft section and unhook from the triangular shaft section after the rotating angle of the synchronizing rod, the other ends of the two movable push rods opposite to the hooks are connected with a shift rod, the knife switch operating rod is provided with a long, the spring acts between the fixed support and the movable push rod to make the movable push rod have elastic force moving backwards and further drive the shift lever to push the knife operating rod to move for opening the brake.

Furthermore, the section of the triangular shaft section is an equilateral triangle, and the axis of the triangular shaft section and the axis of the synchronous rod are coaxially arranged.

Furthermore, the triangular shaft section is provided with two sections, and the positions of the two sections of the triangular shaft section respectively correspond to the hook positions of the two movable push rods.

Furthermore, the triangular shaft section and the synchronous rod are integrally formed.

Furthermore, the inner side surface of the hook is provided with a plane part matched with the outer wall surface of the triangular shaft section.

Furthermore, the opening electromagnet coil comprises a controller, a coil part, a battery part and a capacitor part, wherein the coil part is connected with the controller and is controlled by the controller, the battery part charges the capacitor part, and the capacitor part supplies power to the coil part when the coil part works.

Further, the fixed bolster includes first backup pad, second backup pad, third backup pad, bearing frame, the separating brake electromagnet coil is fixed to be located on the first backup pad, synchronizing bar one end is passed first backup pad, and the other end erects on the bearing frame, the second backup pad has seted up the perforation with the third backup pad corresponding position, the activity push rod is worn to locate in the perforation of second backup pad and third backup pad to the restriction removes along the fore-and-aft direction.

Furthermore, a limiting convex ring is arranged on the movable push rod, the spring is sleeved on the movable push rod, one end of the spring abuts against the limiting convex ring, the other end of the spring abuts against the second supporting plate, and the spring is a compression spring.

It is right by the aforesaid the utility model discloses a description compares with prior art, the utility model provides a pair of high-pressure vacuum circuit breaker is separating brake device with higher speed, and separating brake electro-magnet coil response speed is fast, through the promotion plug-in strip action that just has enough dynamics under the spring force effect behind the activity push rod unhook fast, the reliability is high.

Drawings

Fig. 1 is the utility model relates to a high-voltage vacuum circuit breaker is separating brake device structure sketch map one with higher speed.

Fig. 2 is the utility model relates to a high-voltage vacuum circuit breaker is separating brake device schematic structure view two with higher speed.

Fig. 3 is the first schematic diagram of the state of the accelerated opening device of the high-voltage vacuum circuit breaker of the present invention.

Fig. 4 is the state diagram of the accelerating tripping device of the high-voltage vacuum circuit breaker of the present invention.

Fig. 5 is the circuit structure diagram of the opening electromagnet coil of the present invention.

The labels in the figure correspond to the following: 1. the brake device comprises a fixed support, 11, a first support plate, 12, a second support plate, 13, a third support plate, 14, a bearing seat, 2, a brake-off electromagnet coil, 21, a controller, 22, a coil part, 23, a battery part, 24, a capacitor part, 3, a synchronizing rod, 31, a stop lever, 32, a torsion spring, 33, a triangular shaft section, 4, a movable push rod, 41, a hook, 411, a plane part, 42, a deflector rod, 43, a spring, 44, a limit convex ring, 5, a knife operating rod and 51, a long hole.

Detailed Description

The present invention will be further described with reference to the following detailed description.

Referring to fig. 1 to 5, an accelerating tripping device of a high-voltage vacuum circuit breaker comprises a fixed bracket 1, a tripping electromagnet coil 2, a synchronous rod 3, a movable push rod 4 and a knife operating rod 5.

A stop lever 31 extending laterally is arranged on the synchronizing rod 3, a torsion spring 32 is sleeved on the synchronizing rod 3, one end of the torsion spring 32 is fixedly connected with the fixed support 1, the other end of the torsion spring is hooked on the stop lever 31 to position the axial position of the synchronizing rod 3, the separating brake electromagnet coil 2 faces the stop lever 31, the separating brake electromagnet coil 2 can push the stop lever 31 to overcome the rotation of the torsion spring 32 to drive the synchronizing rod 3 to rotate, a triangular shaft section 33 is arranged on the synchronizing rod 3, two movable push rods 4 are arranged, one end of each movable push rod 4 is hinged with a hook 41, the hook 41 can be hooked on the triangular shaft section 33 and unhooked from the triangular shaft section 33 after the synchronizing rod 3 rotates, the other end of each movable push rod 4 opposite to the hook 41 is connected with a shift lever 42, a long-shaped hole 51 is arranged on the knife operating rod 5, the shift lever 42 penetrates through the long-shaped hole 51, a spring 43 is arranged on each movable push rod, the movable push rod 4 has a backward movement elasticity, and further drives the shift lever 42 to push the knife operating rod 5 to move for opening. The section of the triangular shaft section 33 is an equilateral triangle, and the axle center of the triangular shaft section 33 and the axle center of the synchronous rod 3 are coaxially arranged. The triangular shaft section 33 is provided with two sections, the positions of the two sections of the triangular shaft section 33 respectively correspond to the positions of the hooks 41 of the two movable push rods 4, and the triangular shaft section 33 and the synchronous rod 3 are made of an integrated material and are machined and molded. The inner side of the hook 41 has a flat surface 411 that engages the outer wall of the triangular shaft section 33. The opening electromagnet coil 2 comprises a controller 21, a coil part 22, a battery part 23 and a capacitor part 24, wherein the coil part 22 is connected with the controller 21 and controlled by the controller 21, the battery part 23 charges the capacitor part 23, and the capacitor part 23 supplies power when the coil part 22 works.

The fixed bolster 1 includes first backup pad 11, second backup pad 12, third backup pad 13, bearing frame 14, and on separating brake electromagnet coil 2 was fixed to be located first backup pad 11, first backup pad 11 was passed to 3 one ends of synchronizing bar, and the other end erects on bearing frame 14, and second backup pad 12 has seted up the perforation with third backup pad 13 corresponding position, and movable push rod 4 wears to locate in the perforation of second backup pad 12 and third backup pad 13 to the restriction removes along the fore-and-aft direction. The movable push rod 4 is provided with a limit convex ring 44, the spring 43 is sleeved on the movable push rod 4, one end of the spring 43 is propped against the limit convex ring 44, the other end of the spring 43 is propped against the second supporting plate 12, and the spring 43 is a compression spring.

The operating principle of the accelerating brake-separating device of the high-voltage vacuum circuit breaker is as follows:

in the normal working state, the battery part 23 charges the capacitor part 24, when the opening operation is needed, the controller 21 sends a signal, the capacitor part 24 discharges to supply power to the coil part 22, and the instantaneous discharge capacity of the capacitor part 24 is large, so that the response speed of the coil part 22 is high, and the quick action of the opening electromagnet coil 2 is realized. The opening electromagnet coil 2 pushes the stop lever 31 to rotate against the elasticity of the torsion spring 32, so as to drive the synchronizing rod 3 to rotate, the triangular shaft section 33 rotates along with the rotation of the synchronizing rod 3, and the hook 41 hooked on the triangular shaft section 33 rotates and unhooks from the triangular shaft section 33 due to the change of the angle of the triangular shaft section 33; when the pulling force of the hook 41 is lost, the spring 43 pushes the movable push rods 4 out, the two movable push rods 4 push the shift lever 42 backwards together, and the shift lever 42 drives the knife operating rod 5 to move so as to perform brake opening. The two movable push rods 4 work together, so that enough large thrust is released when the equipment works, meanwhile, the force application position deviation is avoided, and the reliability is improved.

The above-mentioned only be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides a high-pressure vacuum circuit breaker is separating brake device with higher speed which characterized in that: the device comprises a fixed support, a brake separating electromagnet coil, a synchronizing rod, two movable push rods and a knife switch operating rod, wherein the synchronizing rod is provided with a stop rod extending laterally, the synchronizing rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with the fixed support, the other end of the torsion spring is hooked on the stop rod to position the axial position of the synchronizing rod, the brake separating electromagnet coil faces the stop rod, the brake separating electromagnet coil can push the stop rod to overcome the rotation of the second torsion spring to drive the synchronizing rod to rotate, the synchronizing rod is provided with a triangular shaft section, the movable push rods are provided with two movable push rods, one end of each movable push rod is hinged with a hook, the hooks can be hooked on the triangular shaft section and unhook from the triangular shaft section after the rotating angle of the synchronizing rod, the other ends of the two movable push rods opposite to the hooks are connected with a shift rod, the knife switch operating rod is provided with a long, the spring acts between the fixed support and the movable push rod to make the movable push rod have elastic force moving backwards and further drive the shift lever to push the knife operating rod to move for opening the brake.

2. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the section of the triangular shaft section is an equilateral triangle, and the axis of the triangular shaft section and the axis of the synchronous rod are coaxially arranged.

3. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the triangular shaft section is provided with two sections, and the positions of the two sections of the triangular shaft section respectively correspond to the hook positions of the two movable push rods.

4. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the triangular shaft section and the synchronous rod are formed by an integrated material.

5. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the inner side surface of the hook is provided with a plane part matched with the outer wall surface of the triangular shaft section.

6. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the opening electromagnet coil comprises a controller, a coil part, a battery part and a capacitor part, wherein the coil part is connected with the controller and controlled by the controller, the battery part charges the capacitor part, and the capacitor part supplies power when the coil part works.

7. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the fixed bolster includes first backup pad, second backup pad, third backup pad, bearing frame, the separating brake electromagnet coil is fixed to be located on the first backup pad, synchronizing bar one end is passed first backup pad, and the other end erects on the bearing frame, the second backup pad has seted up the perforation with the third backup pad corresponding position, the activity push rod is worn to locate in the perforation of second backup pad and third backup pad to the restriction is removed along the fore-and-aft direction.

8. The accelerated opening device of the high-voltage vacuum circuit breaker according to claim 7, characterized in that: the movable push rod is provided with a limiting convex ring, the spring is sleeved on the movable push rod, one end of the spring abuts against the limiting convex ring, the other end of the spring abuts against the second supporting plate, and the spring is a compression spring.