KR101148171B1 - Operating mechanism for polymer insulation switch - Google Patents

Abstract

PURPOSE: An operating element for a polymer insulation switch is provided to prevent the entire replacement of the switch by avoiding being positioned at dead points based on correcting levers. CONSTITUTION: A driving lever(40) and a driven lever(60) are moved to the maximal lower part of a slot(10b) based on the elastic force of a driving spring. The driving lever is moved slightly to upper side based on a correcting lever(50). A correction driving link(83) is pulled by a correcting spring(84). A correction connecting link(82) is pulled by the correction driving link. Another correction lever pushes the slop pin(41) of the driving lever. A motor clockwise rotates a driving shaft. The driven lever instantaneously rotates to upper side based on the elastic force of the driving spring.

Description

Actuator of polymer insulation switch for processing {Operating mechanism for Polymer insulation switch}

The present invention relates to a polymer insulated switchgear actuator for processing, and more particularly, a polymer insulator for processing having a structure that mechanically overcomes dead spots that may occur during manual operation in an actuator for transferring terminals to open and close a current flow. It relates to an actuator of the shut-off switch.

In general, the process breaker is a device installed on the pole and used to change the opening and closing of the electrical circuit, the conventional gas insulation breaker / switch for the conventional process has a built-in operating part for operating the contact / blocking unit and the contact / blocking unit The sealed metal housing is provided. One side of the housing is provided with a lever for manually operating the operating unit, the other side is provided with a bushing for wrapping and insulating the terminal to which the wire is connected. In addition, SF6 gas is injected into the housing to insulate the housing and to extinguish the arc generated when the contact is in contact. Since the conventional gas insulation blocking / switching device as described above is insulated by SF6, which is gas, it is essential to check the leakage of SF6 gas filled in the housing. Because of this, there is a need for a separate device for checking the SF6 gas, there is a disadvantage that the volume is large, heavy weight and maintenance costs increase. In addition, since SF6 gas is a gas with a large warming index, the SF6 gas leaked due to this has a disadvantage of warming the earth.

The technology developed to solve this problem is registered in Korean Patent No. 0585959. The switch according to the patent is made of a polymer compound which is an insulating material, and the first and second bushings protrude and form correspondingly to the left and right surfaces thereof, and a sealed housing filled with dry air therein, and a right end portion thereof. The side is press-fitted and installed on the left side of the housing, the left end side is wrapped in the first bushing and the first connection terminal and the left end side connected to the electric wire are press-fitted and installed on the right side of the housing and the right end side is connected to the second bushing. A second connection terminal wrapped and connected to the wire, the case being installed on the inner left side of the housing and formed of an insulating material, the case having its own interior being a vacuum, the right end side being positioned inside the case, and the left end side being the left side of the case. The fixed terminal is connected to the first connecting terminal through the surface, the left end side is located inside the case and the right end side passes through the right side of the case Is connected to the second connecting terminal side, the linear reciprocating movement is installed to be a linear reciprocating motion between the contact / blocking portion and the movable terminal and the second connection terminal having a movable terminal that is in contact with and separated from the fixed terminal It is provided with a connecting terminal for connecting the movable terminal and the second connection terminal, and an operating portion which is installed in the housing and linearly moving the connecting terminal to contact / block the movable terminal to the fixed terminal.

The present invention relates to an actuating portion for operating a lifting rod for linearly driving a movable terminal.

According to the conventional patent, since the first rotary member driven by the motor or the manual lever of the operating unit has to cross a position in a straight line with the second rotary member, the second rotary member is driven and operated by the elastic force of the spring. Will implement the correct behavior. In particular, when operating as a motor, since the driving force of the motor is sufficient, the operation is performed correctly as theoretically.

However, even in theory, there are practically dead spots. This is especially the case with manual operation. In the case of manual operation, the driving force is not enough because it is turned by human force, so it is driven slowly and stops at the dead point. The dead point refers to a state in which the rotating members are shifted from a straight line to a slightly operating state or a state in which the rotating members are placed in a nearly straight line where no operation is made. This condition is caused by a combination of factors such as friction and machining of the arc slots. That is, the first rotary member is operated by manual operation, but the second rotary member is in a state in which the second rotary member stays on the opposite side without being operated to form a nearly straight state. In this case, no matter how much the operator tries to turn the manual lever, it will not turn. Eventually, it is concluded as a failure, and provides a direct cause of an electric accident such as a long power failure, and the entire switchgear is replaced by mobilizing equipment such as a ladder car.

The present invention is to solve the problems as described above, the object is to drive the lever in the opposite direction to move away from the position where the dead point can be generated after the first driven driving rotary member of the rotary member is driven In addition, it is an object of the present invention to provide a working polymer insulation cut-off switch that can prevent a failure that may occur due to a dead point.

As a specific means for achieving the above object, the present invention is a frame panel in which a center hole into which a drive shaft is fitted is formed, and an arc-shaped slot is formed on the left and right around the center hole, and rotatable in the center hole. A drive lever having a drive shaft inserted into the drive shaft, a drive lever having one end rotated together with the drive shaft, and a slot pin fitted into a drive slot which is one slot among the arc-shaped slots; A driven pin having a slot pin inserted into a driven slot, which is an opposite slot, connected to a lifting lever for blocking and connecting a connecting terminal, a driving spring connecting the driving end and a free end of the driven lever to each other, Installed at both ends, the drive lever is rotated by a certain angle in the opposite direction after the drive operation And a calibration spring for pushing the driving lever to position the calibration lever, and a calibration spring for providing an elastic force to push the driving lever to the calibration lever.

Preferably, the orthodontic lever is triangular in shape and one vertex is rotatably connected to the frame panel, with one bevel on both sides of the vertex being in contact with the drive lever and the other vertex on the opposite side of the bevel. The calibration connection link is rotatably connected, the other end of the calibration connection link is rotatably connected to one end of the calibration drive link and the other end of the calibration drive link is rotatably connected to the frame panel, One end of the calibration spring is fixed at the center and the other end is fixed to the frame panel.

Preferably, the distance from the center of the drive shaft to the drive slot is formed smaller than the distance to the driven slot.

Preferably, an auxiliary frame panel is fixed to the frame panel in parallel to the rear of the frame panel, and the center hole and the slots are formed in the same manner so that the slot pins and the drive shaft are fitted.

Preferably, the one end is fixed to the drive shaft to be rotated together with the drive shaft and the reciprocating rotation lever reciprocating rotation only within a certain angle, and one end is rotatably connected to the free end of the reciprocating rotation lever to transfer the driving force One end is rotatably connected to the other end of the link and the drive connecting link, and the other end further includes a motor lever fixed to the drive motor shaft.

The present invention as described above has the following effects.

(1) When the manual lever is moved to the position where the driven lever is operated during manual operation, the calibration lever pushes the driving lever away from the dead point so that there is no fear of being located at the dead point.

(2) Since the position of dead point is prevented by the calibration levers at the source, it is not necessary to replace the entire switch due to a breakdown, thus preventing safety accidents such as power failure and extending the life of the switch. to provide.

1 is a front perspective view of an actuator of a processing polymer insulated switchgear according to the present invention.
Figure 2 is a rear perspective view of the actuator of the processing polymer insulated switchgear according to the present invention.
FIG. 3 is a diagram like FIG. 1, in which a frame is omitted.
FIG. 4 is a view like FIG. 2, with the frame omitted.
5 is an exploded perspective view of the processing polymer insulation breaker switch according to the present invention.
Figure 6 is a plan view of the polymer insulating breaker switch for processing according to the present invention.
7 to 10 are front views of the processing polymer insulated switchgear according to the present invention, a view showing each operation state sequentially.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, the actuator of the processing polymer insulation cut-off switch according to the preferred embodiment of the present invention has a center hole 10a into which the drive shaft 30 is fitted, and the center hole 10a. Frame panel 10 having arc-shaped slots 10b and 10c formed at left and right sides thereof, a drive shaft 30 rotatably fitted in the central hole 10a, and one end of which is fitted to the drive shaft 30. A drive lever 40 having a slot pin 41 which is rotated together and inserted into a drive slot 10b which is one of the arc shaped slots 10b and 10c, and one end of which is freely rotatable to the drive shaft 30. And a driven lever 50 to which the slot pin 51 is inserted into the driven slot 10c, which is a slot opposite to the drive slot 10b, and is connected to a lifting lever 60 for blocking and connecting the connecting terminal. Drive soup for connecting the free ends of the drive lever 40 and the driven lever 50 to each other Correction levers are installed at both ends of the ring 70 and the driving slot 10b to push the driving lever 40 so that the driving lever 40 is rotated at an angle in the opposite direction after the driving lever 40 is driven. 80, 90, and calibration springs 84, 85 providing elastic force to push the drive lever 40 to the calibration levers 80, 90.

Here, the calibration levers 80 and 90 are formed in a triangular shape and one vertex 81 and 91 is rotatably connected to the frame panel 10, and the vertices 81 and 91 are formed on both sides of the bevel surface. One inclined surface is in contact with the drive lever 40 and the other side of the opposite side of the inclined side of the calibration connection link (82, 92) is rotatably connected, the other end of the calibration connection link (82, 92) calibration drive link One end of the 83 and 93 is rotatably connected, and the other ends of the calibration drive links 83 and 93 are rotatably connected to the frame panel 10, and the center of the calibration drive links 83 and 93 is located at the center of the calibration drive links 83 and 93. One end of the calibration springs 84 and 94 is fixed and the other end is fixed to the frame panel 10.

Further, the distance from the center of the drive shaft 30 to the drive slot 10b is formed smaller than the distance to the driven slot 10c.

In the rear of the frame panel 10, the auxiliary frame panel 20 is fixed to the frame panel 10 in parallel, and the center hole 20a and the slots 20b and 20c are formed in the same manner so that the slot pins are formed. (41, 51) and drive shaft 30 are fitted.

In addition, the actuator according to the present invention, the one end is fixed to the drive shaft 30 so as to rotate together with the drive shaft 30 and the reciprocating rotation lever 130 and the reciprocating rotation only within a predetermined angle, and the reciprocating rotation lever 130 One end is rotatably connected to the free end of the drive connection link 120 for transmitting the driving force, and one end is rotatably connected to the other end of the drive connection link 120 and the other end is fixed to the drive motor 100 shaft The motor lever 110 is configured to further include.

Referring to the exploded perspective view of Figure 5, the front of the frame panel 10, the reciprocating rotation lever 130, the drive link link 120, the motor lever 110 is installed, the calibration lever (80, 90) and the calibration spring ( 84,94) are also installed. When driven by the motor 100, as shown in FIG. 1, since the motor lever 110 is fixed to the motor shaft, the motor lever 110 rotates in the same direction along with the rotation of the motor 100. Accordingly, the drive link link 120 is reciprocated from side to side in the drawing, and eventually the reciprocating lever 130 is to reciprocate only within a certain angle. In other words, only the reciprocating within a predetermined angle. Therefore, the drive shaft 30 to which the reciprocating rotation lever 130 is fixed also only reciprocates within a predetermined angle. As a result, the drive lever 40 fixed to the drive shaft 30 is also to reciprocate only within the same angle. The driving slots 10b and 20b are formed in the panels 10 and 20 only by the same rotation angle and the same angle as the driving lever 40 rotates. Therefore, as the motor 100 is driven, the driving lever 40 reciprocates according to the guide of the driving slots 10b and 20b at a limited angle.

Referring to FIG. 5 again, the auxiliary frame panel 20 is fixedly fastened at a predetermined distance in parallel to the rear of the frame panel 10. Of course, the center hole 20a and the slots 20b and 20c are formed in the same manner. A double lever driven lever 50 is provided between the frame panel 10 and the auxiliary frame panel 20, and the driven lever 50 is rotatable so that the lifting lever 60 can be driven up and down. It is assembled. Therefore, as the driven lever 50 is rotated, the lifting lever 60 moves up and down. The upper part of the elevating lever 60 is omitted, but connection and disconnection of the connecting terminal is made according to the elevating of the elevating lever 60 as in the related art. That is, when the lifting lever 60 is raised, the connection is made, and when the lifting lever 60 is lowered, the connection is cut off and cut off. Since the driven lever 50 is fitted to the drive shaft 30 so as to be freely rotated through the bearing, the driven lever 50 rotates about the drive shaft 30, but rotates regardless of the drive shaft 30. One end of the driving shaft 30 is inserted into the central hole 20a of the auxiliary frame panel 20 and protrudes through the central hole 10a of the frame panel 10. In the case of manual operation, this drive shaft 30 is directly rotated and operated.

The driving lever 40 is installed behind the auxiliary frame panel 20. The drive lever 40 is fitted to the drive shaft 30 passing through the auxiliary frame panel 20 to rotate at the same angle with the drive shaft 30, and the slot pin 41 formed in the middle of the drive slots 10b and 20b. Will be fitted. The driving spring 70 is fixed to the free end of the driving lever 40 and the other end of the driving spring 70 is fixed to the slot pin 51 of the driven lever 50. In this way, the driving spring 70 is fixed to the free ends of the driving lever 40 and the driven lever 50, respectively. Therefore, the driving lever 40 and the driven lever 50 by the driving spring 70 receives an elastic force in the direction of reducing the angle, except when forming an angle of 180 degrees.

Accordingly, as shown in FIG. 1, the driving lever 40 and the driven lever 50 are both lowered to the slot position at the blocking position of the lifting lever 60. This is the same state as in FIG.

7 to 10 it can be seen well the operation of the actuator according to the present invention. Referring to the state of FIG. 7, the driving lever 40 and the driven lever 60 are positioned below the slots 10b and 20b as much as possible by the elastic force of the driving spring 70, but the driving lever 40 is the calibration lever. It is up slightly by 50. The reason is that the calibration drive link 83 is pulled by the calibration spring 84 and accordingly the calibration connection link 82 is also pulled, so that the calibration lever 80 opens the slot pin 41 of the drive lever 40. Pushed up a bit. Then it will stay that way.

Referring to FIG. 8, when the driving shaft 30 is rotated clockwise by the driving or manual driving of the motor 100 in FIG. 7, the driving lever 40 is rotated upward to reach a state as shown in FIG. 8. In the meantime, the driven lever 50 stays at the bottom. In the state of FIG. 8, the driving lever 40 is rotated so that the angle formed by the two levers 40 and 50 is greater than 180 degrees. In this case, the driven lever 50 is instantaneously rotated upward by the elastic force of the driving spring 70 to a state as shown in FIG. 9. Thereafter, the drive lever 40 is stopped in a state in which the driving lever 40 is moved slightly downward by the upper calibration lever 90 because it is the same structure as the lower calibration lever 80. Then, when the motor 100 is rotated again or the driving shaft 30 is manually driven, the driving lever 50 is lowered to the lowest position as shown in FIG. 10, and is driven by the elastic force of the driving spring 70. ) Momentarily descends to the bottom. Next, the calibration lever 80 pushes the driving lever 40 up by the calibration spring 84, thereby bringing it to a state as shown in FIG.

On the other hand, in the case of manual operation if the moment when a large amount of force is not transmitted to the drive shaft 30, the drive lever 40 is positioned to a position that is slightly less than the state as shown in Figure 8 or 10, that is around 180 degrees or slightly over In the conventional case, dead spots may occur and stop in the state, where manual operation may be impossible. However, even in such a case, since the levers 80 and 90 always push in the opposite directions to the driving directions, the angle formed by the levers 40 and 50 does not exceed 180 degrees. To the original state. Therefore, it does not occur when it stops at dead point and becomes a failure. If you do this less, you can try it again.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

10: frame panel 20: auxiliary frame panel
30: drive shaft 40: drive lever
50: driven lever 60: lifting lever
70: driving spring 80, 90: calibration lever
84, 94: calibration spring 100: motor
110: motor lever 120: drive link
130: reciprocating lever

Claims (5)

A frame panel having a center hole in which a drive shaft is fitted in the center and an arc-shaped slot formed at left and right centers around the center hole, a drive shaft rotatably fitted in the center hole, and one end of which is rotated together with the drive shaft A drive lever having a slot pin inserted into a drive slot which is one slot among the arc-shaped slots, and one end of which is freely rotatably fitted to the drive shaft and a slot pin inserted into a driven slot that is opposite to the drive slot is formed and connected A driven lever to which a lifting lever for blocking and connecting a terminal is connected, a driving spring for connecting the free end of the driving lever and the driven lever to each other, and opposite ends of the driving slot after the driving lever is driven Calibration levers for pushing the driving lever to be positioned at an angle rotated in a direction; The operation of the processing block polymer isolated switchgear comprising a calibration spring member for providing an elastic force to push the drive lever. The method of claim 1,
The calibration lever has a triangular shape, one vertex of which is rotatably connected to the frame panel, and one of the bevels on both sides of the vertex is in contact with the driving lever, and the vertex of the opposite bevel side is connected to the calibration link. Is rotatably connected, one end of the calibration drive link is rotatably connected to the other end of the calibration connection link, and the other end of the calibration drive link is rotatably connected to the frame panel, and the calibration is in the center of the calibration drive link. One end of the spring is fixed and the other end is fixed to the frame panel, the working body of the processing polymer insulation breaker switch. The method of claim 1,
And the distance from the center of the drive shaft to the drive slot is smaller than the distance to the driven slot. delete The method of claim 1,
A reciprocating rotation lever having one end fixed to the driving shaft to be rotated together with the driving shaft and reciprocatingly rotated only within a predetermined angle, and a driving connection link having one end rotatably connected to a free end of the reciprocating rotation lever to transmit a driving force; One end is rotatably connected to the other end of the drive connection link and the other end of the working polymer insulated switchgear further comprises a motor lever fixed to the drive motor shaft.

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