KR100870435B1 - The operating device for a section switch - Google Patents

Abstract

The present invention relates to a switch operating device for opening and closing the switch by rotating the manual control shaft connected to the mobile terminal connecting lever and the mobile terminal connected to the fixed terminal, in the state of wrapping the manual control shaft, fixed to the manual operation shaft Both ends are connected between the manual drive gear and the fixed frame is characterized in that it comprises a rotary spring for imparting a restoring force to the manual control shaft.

According to the present invention, by lowering the height of the case than when using a conventional tension spring can reduce the required amount of insulating oil up to 15%, greatly reducing the production cost, and can be coupled to the rotating spring to the already existing structure switch The advantage is that the structure of the system can be made simple and compact.

Switchgear, Switch, Operation, Rotary Spring, Steel, Fixed Terminal, Mobile Terminal, Manual

Description

Operating device of switch switch {THE OPERATING DEVICE FOR A SECTION SWITCH}

1 is a perspective view schematically showing a conventional switch structure.

Figure 2 is a perspective view showing the structure of the operating device of the switch switch according to the present invention.

3 is a front exploded perspective view of FIG. 2.

4 is a rear exploded perspective view of FIG. 2.

5 is an explanatory diagram showing an operation process of the operation device of the switchgear according to the present invention.

※ Explanation of Major Drawings

100 ... switch drive shaft

110.Moving terminal connecting lever

120.Rotating member

200 ... slewing support shaft

210.Following lever

220 ... Manual Control Gear

230 ... Automatic Operation Gear

235 ... motor

240 ... 1st crankshaft

250 ... crank

260 second crankshaft

300 ... upper axis

310 ... Let me jam

312 ... Return spring

400 ... fixed support shaft

410 reinforcement plate

500 ... Lower locking axis

520 ... protrusion

600 ... Guide

610 ... the supervisor

620 ... the subordinate

700 ... Manual Operation Axis

710 ... circular gear

800 ... opening operation shaft

830 ... fixed member

I, II ... plate

III ... reinforced profile

R: Rotating Spring

The present invention relates to an operating device of a switch switch, in particular by rotating the rotating member in the forward and reverse direction by using the elastic force of the first elastic member connected to the rotating member and the elastic force of the second elastic member for rotating the guide connected to the rotating member. It relates to a switch switch operating device that can open and close the switch by driving the mobile terminal connected to the rotating member.

In general, the switch for opening and closing the high voltage power supply, as shown in Figure 1, by approaching and leaving the plurality of paired insulator 10, the fixed terminal 1 connected to the lower end of the insulator and the fixed terminal (1) A switch unit 20 (parts indicated by dashed lines) consisting of a mobile terminal 2 for disconnecting (opening and closing the switch) and connecting (opening and closing the power) of a high voltage connected to a load, and moving the mobile terminal 2 to switch portions. It consists of the switch operating device 30 which interrupts.

The switch is usually filled with a high-pressure insulating gas or an insulating liquid therein to prevent the spark generated by the access or separation between the terminals,

In addition, when the moving speed of the mobile terminal is low, there is a high possibility of sparking between the mobile terminal and the fixed terminal. Therefore, the switch manipulation device needs to quickly move and move the mobile terminal to the fixed terminal.

To this end, the general switch operation device is to connect the mobile terminal with the elastic member directly or indirectly in order to quickly access and detach the mobile terminal to the fixed terminal, and to quickly move the mobile terminal by using the force generated by accumulating and releasing the elastic force. It's a way of moving.

By the way, it is difficult to apply the opening and closing at the same time by the expansion and compression of one elastic member because it is difficult to apply the mechanical design and the elastic force is very weak, the conventional switchgear switch operating device according to the moving direction of the mobile terminal, respectively, In many cases, a method of opening and closing by moving a mobile terminal using two or more elastic members and links that are compressed.

However, such a conventional switchgear operating device has a disadvantage that the volume of the device is large because the number of links connecting the mobile terminal and the elastic member is too large, the device configuration is complicated. In addition, because of this frequent breakdown occurs, there was a high risk of causing a fire or a large accident.

In order to solve this problem, the present inventor has developed a patent application for the operation device of the switchgear simple configuration (see Patent Publication No. 0280880).

However, in such a case, the configuration is relatively simple, while the return spring for returning the manual operation lever is a long tension spring, so that the height of the operating device increases, and thus the case in which the insulating liquid is naturally included. The height of the was too big to increase the volume. As a result, a large amount of the insulating liquid contained in the case is required, thereby increasing the cost.

In addition, in the operation device of the conventional switchgear according to the above publication, various shafts and links are coupled to two or more plates, and the means for fixing the two plates facing each other are simply made of bolts, so that the entire structure is distorted during operation. Or damage has occurred.

The present invention has been made to solve the above-described problems, an object of the present invention to provide a control device of the switch switch that can greatly reduce the cost by minimizing the volume of the case containing the insulating liquid.

It is also an object of the present invention to provide a device for operating a switchgear that is free from distortion during use.

In order to achieve the above object, the switch operation device according to the present invention,

It is a switch switch operation device that opens and closes the switch by rotating the manual operation shaft and moving the mobile terminal connected to the mobile terminal connecting lever to the fixed terminal.

In a state in which the manual operation shaft is wrapped, both ends are connected between the manual drive gear fixed to the manual operation shaft and the fixed frame, characterized in that it comprises a rotary spring for imparting a restoring force to the manual operation shaft.

At this time, the rotating spring is characterized in that the rotating coil spring.

In addition, the manual drive gear is characterized in that the arc-shaped gear.

In addition, the fixing frame is characterized in that the two plates of the manual operation shaft is installed.

In addition, the switchgear operating device of the present invention,

A rotating member connected to the movable terminal connecting lever and a switch driving shaft and pivoting about the switch driving shaft;

A pivot support shaft pivoting at a constant radius below the pivot member;

Upper locking means and lower locking means for locking and releasing the pivot member and the pivot support shaft respectively by rotation;

 A guide coupled to the pivot member and the pivot support shaft to be interlocked with each other;

A first elastic member connecting the pivot support shaft to the pivot member;

And a second elastic member connecting the pivot support shaft and the fixed support shaft installed on the pivot support shaft.

In this case, the pivot support shaft comprises a first crank shaft connected to the rotating means, a second crank shaft connected to the first and second elastic members, and a crank connecting the first crank shaft and the second crank shaft to each other. It is preferable that one crankshaft be provided with a manual operation gear which engages with the manual drive gear via a one-way bearing.

In addition, the guide is characterized in that it has an upper long hole is inserted into the pin protruding to the side of the rotating member and the lower long hole is inserted into the pivot support shaft.

In addition, the upper locking means is an upper locking shaft having a cutout portion is fixedly coupled to the front end and the rotating member is caught in the front end, the pull link is connected between the release lever and the pivot support shaft, The pivot support shaft connection portion of the pull link is characterized in that the long hole is formed.

Here, the upper locking shaft is characterized in that the cross section of the cutout portion in which the rotating member is caught is semicircular.

In addition, the lower locking means is characterized in that the lower engaging shaft is formed with a notch portion that the crank of the pivot support shaft, and a projection lever for rotation.

Here, it is preferable that the lower locking shaft has a semicircular cross section of the cutout portion to which the crank is applied.

On the other hand, the drive means of the pivot support shaft, characterized in that it further comprises a motor connected to the pivot support shaft and a plurality of gear coupling.

In addition, the reinforcement member is interposed between the two plates is characterized in that the fixed coupling.

Hereinafter, with reference to the accompanying Figures 2 to 5 will be described in detail a preferred embodiment of the present invention.

As shown in FIGS. 2 to 4, the switch drive shaft 100 is coupled to two facing plates I and II, and is connected to a moving terminal (not shown) of the switch unit of the switch driving shaft 100. The mobile terminal connecting lever 110 and the rotating member 120 are fixedly coupled to each other. The two plates I, II constitute a fixed frame.

The fixed support shaft 400 is fixed to the fixed frame.

The fixed support shaft 400 may be coupled to extend to the front plate (I), but in order to reduce the complexity of the device, it is preferable to install the reinforcement plate 410 to be fixed only to the rear plate (II).

In addition, a first crank shaft 240 rotatably coupled to a fixed frame below the switch drive shaft 100, a crank 250 having one end coupled to the first crank shaft 240, and the A pivot support shaft 200 made of a second crank shaft 260 coupled to the opposite end of the crank 250 is installed.

Accordingly, when the first crankshaft 240 rotates, the second crankshaft 260 pivots around the first crankshaft 240 at a rotation radius corresponding to the length of the crank 250. The first crankshaft 240 extends to the front surface of the front plate I of the frame.

In addition, the manual control gear 220 and the automatic control gear 230 are sequentially fixed to the first crankshaft 240 between the front plate I and the rear plate II.

Inside the manual control gear 220 and the automatic control gear 230 includes a one-way bearing arranged around the outer periphery of the first crankshaft 240 to rotate the first crankshaft 240 in only one direction. do.

In addition, the automatic control gear 230 is connected to the motor 235 by connecting gears 231 attached to the rear plate II and a motor gear 234 meshed therewith.

The second crankshaft 260 and the rotating member 120, the second crankshaft 260 and the fixed support shaft 400 are connected by the first elastic member A and the second elastic member B, respectively. . The rotating member 120 has a groove 123 formed to catch an end portion of the first elastic member A, and the groove 123 is provided with a pin 121.

On the other hand, between the rotating member 120 and the second crankshaft 260, the guide 600 through the upper and lower long holes 610, 620 is coupled to be interlockable. The length of the lower long hole 620 is at least longer than the length of the crank 250, so that even if the crank 250 rotates, the guide 600 can pivot in conjunction with the second crank shaft 260. The upper long hole 610 of the guide 600 is smaller in length than the lower long hole 620. In addition, the pin 121 installed through the side of the rotating member 120 is inserted into the upper long hole 610, and the second crank shaft 260 is inserted into and supported by the lower long hole 620.

The end of the rotating member 120 is connected to the first catching means 300, the end of the first elastic member (A) is connected.

The upper catching means 300 has an upper catching shaft rotatably coupled to the front plate I and the rear plate II of the frame. The upper locking shaft has a semi-circular cross section of the cutout portion 320, which is a portion on which the rotating member 120 is caught, and the tip of the rotating member 120 can be caught or released by the rotation thereof. The upper locking shaft 300 is rotatably coupled to extend to the front plate (I) of the frame, the front end is a locking lever 310 is fixedly coupled.

The upper locking shaft is connected to the fixing member 313 and the return spring 312 installed on one side of the front plate (I) and has a property of always restoring to its original position.

On the other hand, at the lower end of the first crankshaft 240, a lower locking means 500 is formed so that the end thereof has a cutout 560 of semi-circular cross section. The lower locking means 500 is also preferably a lower locking shaft which is rotatably coupled to the front plate I and the rear plate II of the frame. The distance between the lower locking shaft 500 and the first crank shaft 240 is slightly smaller than the length of the crank 250, so that the rotating crank 250 has a cutout 560 of a semi-circular cross section at the end of the lower locking shaft 500. ).

The lower locking shaft 500 extends to the front of the front plate (I) of the frame, and the lower locking shaft 500 located in the front portion of the front plate (I) is closed with a lever 590 and a washer bolt 510. ) Is installed. Accordingly, by rotating the lever 590 can release the crank 250 caught in the lower locking shaft 500 to proceed to the power off position.

Instead, a solenoid actuator (not shown) may be connected to the lever 590 of the lower locking shaft 800 between the frame front plate I and the rear plate II to actuate the latch release electronically.

In addition, the opening operation shaft 800 is rotatably coupled to the frame by being spaced apart at regular intervals in parallel with the lower locking shaft 500. The opening operation shaft 800 is interlocked with the lower locking shaft 500 by the opening guide 850, and is connected to the fixing member 830 fixed to one side of the rear plate II of the frame by a return spring 820. It is.

 The open operating shaft 800 is also provided with a bolt 810 closed with a washer at the bottom of the front end thereof.

On the other hand, a manual operation shaft 700 that can be manually rotated by being inserted into a rectangular hole formed at the end of the manual operation lever L is provided over the front plate I and the rear plate II of the frame. The manual control shaft 700 has an arc-shaped gear 710 that engages the manual control gear 220 of the first crankshaft 240 between the front plate I and the rear plate II of the frame. Doing.

In addition, in the state in which the manual operation shaft 700 is wrapped, a rotary spring R connected between the driving unit fixed to the manual operation shaft 700 and the fixed frame to impart a restoring force to the manual operation shaft 700 is It is installed.

Specifically, the rotary spring R is connected between the front plate I and the arcuate gear 710. To this end, the front plate (I) and the arc-shaped gear 710 is provided with mounting holes (I-1) (715) for bending the end of the rotary spring (R) is fitted.

Accordingly, the installation space becomes very small as compared with the conventional case using a very long tension spring. This results in keeping the volume of the case in which the operation device is included small, and has the effect of reducing the amount of insulating oil contained in the case.

In addition, a separate configuration for installing the tension spring is not necessary, and the installation is completed by simply connecting both ends of the rotating spring R to the surrounding structure.

As shown in the figure, the rotary spring R is preferably configured in a coil shape.

In addition, a pull link 290 is connected between the release lever 310 and the pivot support shaft 200, but a long hole 291 is formed at a connection portion of the pivot support shaft 200 of the pull link 290. It is.

Accordingly, when the second crankshaft 260 descends and moves along the long hole 291 of the pull link 290 and comes into contact, the pull link 290 continuously moves the release lever 310. Pulled to allow the upper locking shaft 300 to rotate. As the upper locking shaft 300 rotates, the rotating member 120 that is caught by the cutout portion 320 of the upper locking shaft 300 is released and is rapidly lowered by the first elastic member A.

Hereinafter, an operation according to the embodiment will be described with reference to FIG. 5.

First, in order to close the switch, when the manual operation lever L is inserted into the manual operation shaft 700 and rotated in the clockwise direction, the arc-shaped gear 710 connected thereto rotates in the same direction. The manual operation gear 220 engaged with the arc-shaped gear 710 and the first crank shaft 240 which is the gear shaft rotate in the counterclockwise direction. When the first crankshaft 240 rotates counterclockwise, the crank 250 and the second crankshaft 260 connected thereto rotate in the counterclockwise direction.

The crank 250 and the second crank shaft 260 is rotated until the end portion of the crank 250 is caught by the lower locking shaft 500, in which case the first crank shaft 260 is caught , The two elastic members (A, B) is stretched to the maximum, the elastic force is maximized.

At first, the guide 600, in which the upper end of the lower long hole 620 was supported by the second crankshaft 260, rotates downward in accordance with the rotation of the second crankshaft 260. FIG.

Accordingly, as shown in Figure 5 (b), the pin 121 of the rotating member 120 is in contact with the upper end of the upper long hole 610 of the guide 600.

Meanwhile, the rotation angles of the crank 250 and the second crankshaft 260 are 180 degrees or more, and the crank 250 of the crank 250 passes through the dead point where the elastic energy of the elastic members A and B is maximum. The end portion is designed to be caught by the lower locking shaft 500. Therefore, even if the locking of the lower locking shaft 500 is released later, the rotation is continued counterclockwise without returning clockwise.

In addition, when the first crankshaft 240 rotates in the counterclockwise direction, the pull link 290 connected to the second crankshaft 260 is also moved, and the second crankshaft 260 is lower than the guide 600. From the moment it touches the bottom of the long hole 620, the force is transmitted to the release lever 310 is rotated while interlocking.

Accordingly, when the locking release lever 310 rotates in the counterclockwise direction, the semi-circular cross section 320 of the upper locking shaft 300 on which the rotation member 120 is locked also rotates to lock the rotation member 120. Will be released.

As such, when the locking of the rotation member 120 is released, the rotation member 120 connected to the first elastic member A is rapidly contracted while being contracted by the restoring force of the first elastic member A. Accordingly, the switch drive shaft 100 and the mobile terminal connecting lever 110 fixedly coupled thereto rotate in a counterclockwise direction, and finally the mobile terminal connected to the mobile terminal connecting lever 110 approaches the fixed terminal (not shown). The switch is closed (or introduced or turned on) (see Fig. 5 (c)).

At this time, since the second elastic member B is connected between the second crankshaft 260 and the fixed support shaft 400, the second elastic member B is kept in the stretched state regardless of the contraction of the first elastic member.

While the first crank shaft 240 is caught by the lower locking shaft 500 and the first locking shaft 300 is unlocked by the rotation of the first crank shaft 240, in theory, the first crank may appear to be sequentially performed. As the shaft 240 continuously rotates, the shaft 240 is made almost simultaneously, thereby enabling a quick closing operation.

On the other hand, the closing process, as described below, may be made automatically by the motor 235 connected to the plurality of gear coupling to the first crank shaft 240. First, when the motor 235 is driven to rotate the motor gear 234 attached to the motor shaft, the automatic control gear 230 coupled to the first crankshaft 240 through a plurality of connecting gears 231, 232, 233 engaged therewith. Rotates counterclockwise. Since the locking release process of the upper locking shaft 300 is made in the same manner as the closing process by the manual operation lever (L), detailed description thereof will be omitted.

Next, the manual opening (that is, the OFF state) of the switch will be described.

First, when the lever 590 formed on the lower locking shaft 500 is manually rotated in the counterclockwise direction, the crank 250 held by the semicircular cross section 560 at the opposite end thereof is released, and the second elastic The second crankshaft 260 is rapidly rotated counterclockwise by the elastic force of the member (B).

Accordingly, the guide 600 has an upper end of the lower long hole 620 supported by the second crankshaft 260 to move upward, and the rotation member 120 has an upper long hole 610 of the guide 600. The pin 121 of the side is supported and raised by the lower end, and as a result, the rotating member 120 rotates upward, that is, clockwise.

Accordingly, the mobile terminal connecting lever 110 fixedly coupled to the pivot member 120 through the switch drive shaft 100 also rotates in a clockwise direction, and the mobile terminal connected thereto is separated from the fixed terminal to open the switch ( That is, the state OFF (see Fig. 5 (d)).

On the other hand, the release lever 310 of the front end of the upper engaging shaft 300 that was rotated counterclockwise in the process of releasing the upper locking shaft 300, the return spring 312 is supported by the fixing member 313 As the pin 311 at the front end thereof is pulled clockwise by the elastic force of the spring, the pin 311 rotates clockwise again. Therefore, the upper locking shaft 300 also rotates clockwise to return to the original position.

At this time, the front end portion of the rotating member 120 rising during the opening and closing of the switch is raised by rubbing the semi-circular cross-section 320 of the upper locking shaft 300 returned to the initial position, and the weight and the first elastic member A It is lowered again by the elastic force of) and placed on the semi-circular cross section 320, and is returned to the initial position before the closing process.

In addition, the switch may be automatically opened by a control mechanism connected to a computer or the like.

That is, when the open signal is released from the control mechanism, the suction force of the electromagnet of the electromagnet mounting portion 550 connected to the control mechanism is generated, so that the solenoid 540 connected with the electromagnet mounting portion and the connecting member 530 connected thereto are pulled to the right. Accordingly, as the lever 590 of the lower locking shaft 500 inserted into the long hole of the connection member 530 receives a force to the right, the lower locking shaft 500 rotates counterclockwise. Therefore, the latches of the crank 250 and the second crankshaft 260 are released.

Here, since the lifting of the guide 600 and the rotation member 120 by the elastic force of the second elastic member (B) is the same as the manual opening process, a detailed description thereof will be omitted.

In addition, the return spring 820 supported by the fixing member 830 is also connected to the open operation shaft 800, so that the lower locking shaft 500 which releases the crank 250 and the second crank shaft 260 is released. It is supposed to return to this initial position.

On the other hand, according to the present invention, the rotary spring (R) connected between the front plate (I) and the arc-shaped gear 710 in the state wrapped around the manual control shaft 700 to impart a restoring force to the manual control shaft 700 ), And after the manual operation shaft 700 is rotated by the manual operation lever (L), it is returned to its original position by the elastic force. At this time, since the one-way bearing is arranged between the inside of the manual control gear 220 engaged with the arc-shaped gear 710 and the outer circumference of the first crankshaft 240, the first crankshaft 240 is an arc-shaped gear ( 710 does not rotate despite the reverse rotation.

Accordingly, the height of the case accommodating the insulating liquid is very low compared to the conventional case using a very long tension spring, the installation space is very small, the small amount of the insulating liquid is reduced, the cost is greatly reduced.

In addition, in the present invention, since the two plates (I, II) are connected by the bolts (IV) and the reinforcing member (III) is coupled, no distortion occurs during use.

The above is just one embodiment, and the rotation spring (R) and the reinforcement member (III), etc. in a general switch for accessing the mobile terminal connected to the mobile terminal connecting lever to the fixed terminal by rotating the manual operation shaft with the manual operation lever. Of course, it can be applied.

According to the present invention having the configuration as described above, because the use of a rotary spring surrounding the manual operation shaft, the height of the case is significantly lower than when using a conventional tension spring can reduce the required amount of insulating oil up to 15% and eventually produce The cost can be greatly reduced.

In addition, the conventional structure requires a separate structure (hanging shaft, etc.) to hang the tension spring has a disadvantage in that the assembly configuration is complicated, but according to the present invention is sufficient to combine the structure already exists in the state wrapped around the manual operation shaft structure It has the advantage of being simple and compact.

In addition, according to the present invention, since the reinforcement member is coupled between the two plates do not cause distortion during use, the correct width is maintained, there is no malfunction occurs.

Claims (13)

In the switch operation device for opening and closing the switch by rotating the manual operation shaft to move the terminal connected to the mobile terminal connecting lever to the fixed terminal, A rotating member connected to the movable terminal connecting lever and a switch driving shaft and pivoting about the switch driving shaft; A pivot support shaft pivoting at a constant radius below the pivot member; Upper locking means and lower locking means for locking and releasing the pivot member and the pivot support shaft respectively by rotation;  A guide coupled to the pivot member and the pivot support shaft to be interlocked with each other; A first elastic member connecting the pivot support shaft to the pivot member; A second elastic member connecting the pivot support shaft and the fixed support shaft installed above the pivot support shaft; And In a state in which the manual operation shaft is wrapped, both ends are connected between the manual driving gear fixed to the manual operation shaft and the fixed frame to include a rotation spring for imparting a restoring force to the manual operation shaft, The pivot support shaft includes a first crank shaft connected to the rotating means, a second crank shaft connected to the first and second elastic members, and a crank connecting the first crank shaft and the second crank shaft, and the first crank shaft The switchgear operating device, characterized in that the manual operation gear is engaged with the manual drive gear via a one-way bearing is installed. The method of claim 1, The switch spring operating device switch, characterized in that the rotating coil spring. The method of claim 2, The manual drive gear is a switchgear operating device, characterized in that the arc-shaped gear. The method of claim 3, The fixed frame is a switchgear operating device, characterized in that the two plates that the manual operation shaft is installed. delete delete The method of claim 1, The guide has a switch opening device characterized in that it comprises an upper hole for protruding the pin is inserted into the side of the rotating member and the lower hole for the pivot support shaft is inserted. The method of claim 1, The upper catching means is an upper catching shaft formed with a cutout portion to which the release lever is fixedly coupled to the front end and the rotating member is caught at the front end, and a pull link is connected between the release lever and the pivot support shaft. Swivel support shaft connecting portion of the switchgear operating apparatus characterized in that the long hole is formed. The method of claim 8, The upper locking shaft is a switch switch operating device, characterized in that the cross section of the notch portion is caught by the rotating member. The method of claim 1, The lower locking means is a switch operation device, characterized in that the crank of the pivot support shaft is caught, and the lower locking shaft formed with a projection lever for rotation. The method of claim 10, The lower latching shaft is a switch switch operating device, characterized in that the cross section of the notched portion is caught by the crank. The method of claim 1, Actuator switch operating device of the swing support shaft, characterized in that the motor is connected to the pivot support shaft by a plurality of gear coupling. delete

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