KR100788434B1 - Handling device for a switch - Google Patents

Abstract

An actuator for a switch which can be reliably operated at each predetermined position with respect to the "break", "load" or "ground" position of the switch is provided. On the peripheral edge of the cam plate 7 provided on the output shaft 2 which is rotated by the motor 4 or the manual handle 5, it is formed in the part corresponding to each position of "insertion", "break", and "ground" of the switch. Cam follower lever 10 including a recess 9 and pins 9a and 9b that abut the switch to stop the motor 4, a cam-driven roller 12 and a lock roller 13, and a cam. In the respective positions of the transmission roller 12, the locking roller 13 is caught in the recessed portion, and the retaining latch 14 locking the rotation of the output shaft, the recessed portion of the cam plate 7, and the cam-driven roller The micro switch 13a which detects the engagement of the (13), the lock release member which rotates by horizontal movement of a lock lever, and releases the lock of the holding latch 14, and the lock release driven by the magnet 17. Actuator for a switchgear provided with the rod 17a.

Manipulator for switchgear

Description

HANDLING DEVICE FOR A SWITCH

BRIEF DESCRIPTION OF THE DRAWINGS The whole of the manipulator of this invention is shown, (a) is a side view, (b) is a top view, (c) is a front view.

Fig. 2 shows the periphery of the cam plate of the manipulator of the present invention, (a) is a plan view, and (b) is a side view.

Figure 3 shows the mechanical locking of the holding latch, (a) is a plan view, (b) is a side view.

It is explanatory drawing of the mechanism which regulates the removal of a handle.

Figure 5 shows another embodiment of the lock lever of the present invention, (a) is a plan view, (b) is a side view.

6 is a front view of another embodiment of the lock lever of the present invention.

7 is an operation explanatory diagram of another embodiment of the lock lever of the present invention.

♣ Explanation of symbols for main part of drawing ♣

1: Manipulator 1a: Case

2: output shaft 3: connecting lever

4: motor 5: manual handle

5a: Cylindrical Shaft 5b: Jamming Groove                 

5c: Taper part 6: Operation shaft

6a: Manual handle insertion hole 7: Cam version

7a to c: Concave portion 8a to d: Micro switch

9a, b: Pin 10: Cam follower lever

11: Spring 12: Roller

12a: Shaft 13: Lock roller

13a: micro switch 14: holding latch

14a: recess 15: lock release member

15a: return spring 16: lock lever

16a: latching part of the lock lever 16b: latching

16c: lock 16d: long

16e: Hook hanging groove 16f: Hook hanging groove

17: magnet 17a: pusher rod (pusher rod)

18: Hook shanghai copper lever 18a: hook

18b: long hole 18c: shaft

18e: Taper part of the hook 19: Return spring

20: shutter 20a: hole

20b: lock hook 21: magnet

21a: stopper rod

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an actuator for a switch that operates "loading", "breaking", and "grounding" of a switch such as a ground switch disconnector.

An actuator for a switch is used to switch between three positions of "opening", "breaking" and "grounding" of the switch.

The actuator for switchgear is described, for example in Unexamined-Japanese-Patent No. 8-315692, or Utility Model Registration 3012144.

The actuator for the switchgear is provided at one end of the output shaft of the manipulator with a connecting lever connected to an operation rod for operating the main circuit contact of the switchgear. The output shaft has a structure that rotates by an operating shaft that rotates by a geared motor when automatic and by a manual handle when manual. The operating rod is moved by rotating the connecting lever by a motor or a manual handle to switch the main circuit contact of the switch to the three positions of "opening", "breaking" or "grounding".

However, in the case of the "breaking" operation, the conventional actuator for a switchgear may overwork a connection lever by mistake, overshoot a predetermined position, and may not stop at a "loading" position certainly.

In addition, in the case of manual operation, since the handle is free to be pulled out, the handle may be pulled out of a position other than the "loading", "cutting", or "grounding", or it may be overdone, and the "loading" and "hanging" And the "ground" position is problematic.

Then, this invention provides the actuator for switchgear which can be reliably operated in each predetermined position with respect to the "loading", "breaking", or "grounding" position of a switch.

According to the present invention, an actuator for switchgear which rotates an output shaft by a motor or a manual handle to switch "opening", "breaking" and "grounding" of a switch, comprising a cam plate provided on the output shaft and a "loading" of the switch on the circumferential edge of the cam plate. Force is applied to the concave portion formed at the portions corresponding to the respective positions of "break" and "ground", a pin contacting the microswitch for stopping the motor formed on the surface of the cam plate, and a peripheral edge of the cam plate. The cam driven lever, which is moved up and down by the rotation of the cam plate, which is equipped with the cam cam roller for rolling and the roller for locking, and the cam roller for locking the cam plate at the "loading", "breaking" or "ground" position of the cam plate. Number of lock levers, a holding latch for locking the rotation of the output shaft to engage the recess, a micro switch for detecting engagement between the recess of the cam plate and the roller for cam transmission; It characterized in that it includes a rod for locking is released by the rotation by the movement, the stack of locking roller from the concave portion of the holding latches driven by the lock releasing member, and a magnet to release the lock.

In the above constitution, a manual locking groove is formed in the circumference of the cylindrical shaft portion to be inserted into the operation shaft for driving the output shaft, and the tapered portion is formed at the distal end portion;                     

At the same time, it has a hook that moves up and down to engage or disengage the locking groove of the manual handle. At the same time, it is supported by a force applied to the operating shaft in the long hole, and is rotated by the vertical movement of the cam driven lever. A hook for moving up and down is provided.

In addition, the lock lever has a long hole into which the shaft for supporting the roller of the cam driven lever is inserted, and a hooking groove formed on the lower edge side of the shutter side for opening and closing the manual handle insertion hole for inserting the manual handle into the operation shaft. The lock hook may be provided to rotate by opening and closing the shutter and to enter and exit the hook locking groove of the lock lever.

Example 1

BRIEF DESCRIPTION OF THE DRAWINGS The whole of the manipulator of this invention is shown, (a) is a side view, (b) is a top view, (c) is a front view. One end of the output shaft 2 of the manipulator 1 is provided with a connecting lever 3 connected to an operation rod (not shown) for operating a switch (not shown), and the output shaft 2 is an automatic motor ( 4), in the case of manual, the structure is rotated by the operation shaft 6 which rotates with the manual handle 5 from the outside of the case 1a. The above structure is different from that of the conventional manipulator. none.

Fig. 2 shows the periphery of the cam plate of the manipulator of the present invention, (a) is a plan view, and (b) is a side view. On the output shaft 2, a cam plate 7 is provided on the side opposite to the connecting lever, and the cam plate rotates in accordance with the rotation of the output shaft. At the periphery of the cam plate, recesses 7a, 7b, 7c are formed at portions corresponding to the respective positions of "insertion", "break"-"ground" of the switch at intervals. In addition, the surface of the cam plate 7 is in contact with the micro switches 8a, 8b, 8c, and 8d at portions corresponding to the positions of the "insertion", "break", and "ground" of the switch. Pins 9a and 9b are provided.

In the direction orthogonal to the output shaft 2, the cam follower lever 10 equipped with the rotational freedom material is provided so that the spring 11 may apply a force to the cam plate 7 side. The roller 12 along the circumferential edge of the cam plate 7 is provided in the center of the cam follower lever 10, and the other end of the cam follower 10 has a lower concave portion of the rotatable retaining latch 14 described later ( The lock roller 13 which engages or disengages with 14a) is provided.

The holding latch 14 is exerted a force such that the recess 14a abuts against the lock roller 13. Moreover, the micro switch 13a which detects that the roller 12 exists in the recessed parts 7a-7c of the cam board 7 is provided.

Fig. 3 shows the mechanical lock of the retaining latch, wherein (a) is a plan view and (b) is a side view. The lock release member 15 which moves the upper part is engaged with the holding latch 14, The lock release member 15 is rotatably mounted to the lock lever 16, and the horizontal movement of the lock lever 16 is carried out. Rotates, the recess 14a of the retaining latch 14 is released from the lock roller 13, and the mechanical lock is released, so that the cam follower lever 10 can be moved up and down by the rotation of the cam plate 7. do. Moreover, after the lock release member 15 and the lock lever 16 are pushed back, they return to the neutral position by the action of the return spring 15a.

In addition, the pusher rod 17a driven by the magnet 17 is arranged to push the upper part of the holding latch 14 to release the mechanical lock.

The end of the lock lever 16 is formed in the L-shaped latching portion 16a, and as shown in Fig. 1, the latch 16b is fastened to the L-shaped portion and filled with a lock (16c in Fig. 1) as necessary. It is supposed to lock.

FIG. 4 is an explanatory view of a mechanism for regulating the removal of the handle, and a mechanism for regulating the removal of the manual handle 5, the locking groove 5b of the cylinder shaft portion 5a of the manual handle 5; It forms, and the taper part 5c is formed in the front-end | tip. The hook 18a which moves up and down in order to engage or disengage by the locking groove 5b of the manual handle 5 is installed in the front-end | tip of the hook shanghai-dong lever 18, and the hook shanghai-dong lever 18 is a long hole ( It is axially supported by the shaft 18c at 18b), and it rotates by the vertical movement of the center part roller 12 of the cam driven lever 10. As shown in FIG.

The lever 18 for the hook shangdong is applied to the shaft 18c by the return spring 19, and when the roller 12 is in the recess 7b of the cam plate 7, the lower end of the hook 18a is manually Since it is above the locking groove 5b of the handle 5, the removal of the handle 5 can be made free. In addition, when the roller 12 is on the outer periphery of the cam plate 7, the lower end of the hook 18a is caught by the locking groove 5b of the manual handle 5, and thus the manual handle 5 cannot be pulled out. . Further, a tapered portion 18e is formed outside the lower end of the hook 18a, so that the taper of the manual handle 5 may be located even if the hook 18a is located below the locking groove 5b of the manual handle 5. When the portion 5c is pushed in strongly, the lever 18 for the hook shangdong rises to overcome the force of the return spring 19, and the manual handle 5 can be inserted.

The shutter 20 is rotatably installed in the manual handle insertion hole 6a of the device case 1a, and the lower part of the shutter 20 allows the stopper rod 21a to move forward and backward by the magnet 21 to enter and exit. 20a is formed.                     

Next, operation | movement of the actuator for switchgear of this invention is demonstrated.

(1) Electric operation

When operating from the "hang" position to the "insert" position

In FIG. 2, the roller 12 of the cam follower lever 10 enters into the recess 7b at the "cut" position in the center of the cam plate 7, and this state is detected by the micro switch 13a and the magnet ( 17 can be excited, and the lock roller 13 is caught by the recessed part 14a of the holding latch 14, and it is in the locked state.

In this locked state, when the "insertion" command is made, the rod 17a pushes the retaining latch 14 by the magnet 17, and the locking roller 13 is pulled out of the recess 14a of the retaining latch 14. The lock is released and the motor (4 in FIG. 1) is then rotated.

The cam plate 7 fixed to the output shaft 2 rotates by the rotation of the motor 4, and the roller 12 provided in the cam follower lever 10 according to the rotation of the cam plate 7 moves the " Pushed up from the recess 7b in the "hang" position, the microswitch 13a operates to release the magnet 17, and the retaining latch 14 waits for the next locking to be possible. When the cam plate 7 rotates again, the roller 12 enters the recessed part 7a of a "loading" position. At this time, the micro switch 8d detects the position of the pin 9a, the motor 4 stops, and the lock roller 13 is caught by the recess 14a of the retaining latch 14, thereby locking the state. Becomes

In addition, the micro switch 13a detects the engagement of the recess 7a and the roller 12 to enable excitation of the magnet 17, and waits for the next operation.

The operation is the same as described above in the case of operating from "break" to "ground", and the retaining latch 14 is pushed to the rod 17a by the "grounding" command, and is locked from the recess 14a of the retaining latch 14. The roller 13 is pulled out and the lock is released. As the cam plate 7 is rotated, the roller 12 provided on the cam follower lever 10 is pushed up from the recess 7b at the "break" position of the cam plate 7, so that the recess at the "ground" position ( 7c), the motor 4 stops. Then, the locking roller 13 is caught by the recess 14a of the retaining latch 14, and the lock latch 13 is locked.

The opposite operation of "insertion", "break" and "ground" can be performed by rotating the motor in reverse.

As described above, there is no risk of being operated at the "ground" position by jumping from the "insertion" position to the "ground" position, for example, by locking at each position of "put", "hang", or "ground".

As shown in Figs. 1 and 3, the lock lever 16 is pulled out at each of the positions of "insertion", "break" or "ground", and the latch 16b is locked to secure the lock at the predetermined position. It can be done.

In addition, in the event of a power failure, a switch problem, or other inoperability, after the manual operation conditions are summarized, as shown in Fig. 4, the stopper rod 21a is removed from the hole of the shutter 20. , The shutter 20 is opened and the tapered portion 5c of the manual handle 5 is pushed in strongly, and the hook 18 lever for lifting the handle 18 rises over the force of the return spring 19 to operate the manual handle 5. It is possible to push in the shaft 6, and to operate by rotating the operation shaft 6 manually.

(2) Manual operation                     

When the manual operation condition is enabled by the circuit which is not mentioned above, the magnet 21 act | operates and the stopper rod 21a comes out from the insertion hole 20a of the shutter 20, and shutter opening is possible. Open the shutter 20 and push the manual handle 5 onto the operation shaft 6. When the lock is locked in the "break", "insert" or "ground" position, the hook (at the tip of the lever 18) Since 18a) is in an upper position than the locking groove 5b of the manual handle 5, the manual handle 5 can be easily inserted without being prevented from being pushed in.

When the roller enters into the recessed portion 7b of the cam plate 7 in the "cut off" position, the lock roller 13 is caught in the recessed portion 14a of the retaining latch 14, and thus the locked state is locked. To release the lock, the lock 16c is released, the latch 16b is removed, and the lock lever 16 is pressed. The retaining latch 14 rotates to release the lock with the lock roller 13 to release the lock.

Subsequently, when the manual handle 5 is rotated, the cam plate 7 fixed to the output shaft 2 is rotated by the rotation of the operation shaft 6, and the roller provided on the cam follower lever 10 is rotated in accordance with the rotation of the cam plate 7. 12 is pushed up from the recessed part 7b of the "cut" position of the cam plate 7, and enters the recessed part 7a of the "loaded" position. When the roller 12 enters the recessed portion 7a of the "cut" position of the cam plate, the locking roller 13 is caught by the recessed portion 14a of the retaining latch 14, and the locked state is brought into the locked state.

On the other hand, if the manual handle is being rotated, as shown in Fig. 4, the roller 12 provided in the cam follower lever 10 in accordance with the rotation of the cam plate 7 causes the recessed portion of the cam plate 7 to be " breaked " Pushed up from 7b), the tip hook 18a of the hook shangdong lever 18 enters the locking groove 5b of the manual handle 5, and in this state, the manual handle 5 cannot be pulled out. Further, when the cam plate 7 is rotated so that the roller 12 enters the recessed portion 7a of the "load" position of the cam plate 7, the hook 18a is pulled out of the locking groove 5b of the manual handle 5. It is in a state that the manual handle 5 can be pulled out.

When the roller 12 enters into the recessed portion 7a of the "load" position of the cam plate 7, the lock roller 13 is caught by the recessed portion 14a of the retaining latch 14, and the locked state is rotated. This is stopped.

The operation described above is also performed in the case of "breaking" and "grounding". The lock lever 16 is pushed down, and the lock roller 13 is removed from the recess 14a of the retaining latch 14 and locked. Is released, and as the cam plate 7 is rotated by the manual handle 5, the roller 12 provided on the cam follower lever 10 is pushed out of the recess 7b at the "cut" position of the cam plate 7. It raises and enters the recessed part 7c of a "ground" position, the lock roller 13 is caught by the recessed part 14a of the holding latch 14, and it becomes locked, and rotation is prevented.

The reverse operation of "grounding", "loading" and "breaking" is performed by rotating the manual handle 5 reversely.

As described above, since it is locked at the "insert", "break" or "ground" position, there is no fear of operating by skipping the "break" position. In addition, the position can be locked by extracting the lock lever at each of the positions of "insertion", "break" or "ground", and locking the latch.

Example 2

In this embodiment, in order to reliably prevent a malfunction by the manual handle 5, after one switching operation (e.g., insertion at break) is completed, the next operation is not performed once the manual handle 5 is not removed. The structure does not proceed to.

Figure 5 shows another embodiment of the lock lever of the present invention, (a) is a plan view, (b) is a side view, Figure 6 is a front view, the same reference numerals are assigned to the same members as those of the first embodiment. Description is omitted. As in the first embodiment, the retaining latch 14 is engaged with the lock release member 15 for moving the upper portion thereof, and the lock release member 15 is mounted to the lock lever 16 so as to be rotatable. It rotates by the horizontal movement of the lever 16, and returns to a neutral position by the action of the return spring 15a.

In the lock lever 16, a shaft 12a for axially supporting the roller 12 to the cam follower lever 10 is inserted into the long hole 16d. The cam follower lever 10 is rotated by the rotation of the cam plate 7. It moves up and down, the roller 12 moves up and down, and the lock lever 16 rotates the lock release member 15 by this up and down movement.

In addition, the lock lever 16 is provided with a hook locking groove 16e and a locking groove 16f on the lower edge side of the shutter 20 side.

An inverted L-shaped lock hook 20b is connected to the shutter 20. By opening and closing the shutter 20, the lock hook 20b rotates to enter and exit the hook latch groove 16e or the latch groove 16f of the lock lever 16, thereby enabling horizontal movement of the lock lever 16, or Make it impossible.

In addition, the end of the lock lever 16 is formed of an L-shape latching groove 16a. As shown in FIG. 1, the latch 16b is fastened to the L-shaped portion, and the lock 16c (FIG. 1) is necessary. It's supposed to be filled with)).

The operation of the present embodiment will be described with respect to the operation of switching from breaking to inserting by the operation explanatory diagrams of Figs. 5 (b) and 7.

In Fig. 5 (b), the shutter 20 blocks the manual handle insertion hole 20a, and in this state, the lock hook 20b is the hook catching groove 16e of the lock lever 16 and the catching groove ( Since it exits from 16f), the pushing lever 16 can be pushed and pulled freely. In addition, the retaining latch 14 is in a locked state.

Next, as shown in Fig. 7A, when the lock lever 16 is pressed for the switching operation, the retaining latch 14 is rotated to release the lock with the lock roller 13 to release the lock. When the shutter 20 is opened in this state, the lock hook 20b is caught by the hook catching groove 16e of the lock lever 16.

Thereafter, when the manual handle 5 is inserted and the operation shaft 6 is rotated, the cam plate 7 rotates, and the roller 12 provided on the cam follower lever 10 moves along the rotation of the cam plate 7 to the cam plate ( It is pushed up from the recess 7b in the "break" position of 7), and when the cam plate 7 rotates further, the roller 12 enters the recess 7a of the "load" position. In this operation, as shown by the dashed-dotted line in Fig. 7A, the lock lever 16 is pushed up by the shaft 12a of the roller 12, so that the hook catching groove 16e becomes the lock hook ( Out of 20b, the lock lever 16 moves to the shutter 20 side by the action of the return spring 15a.

When the roller 12 enters the recessed portion 7a at the "insertion" position, as shown in Fig. 7 (b), since the hook catching groove 16f enters the lock hook 20b, the lock lever 16 is opened. Can't move

When the next operation is performed, the manual handle 5 is pulled out, the shutter 20 is closed from the state shown in Fig. 5 (b) and the lock hook 20b is pulled out from the hook catching groove 16f. The lock lever 16 is pushed in, and the above operation is repeated from the state shown in Fig. 7A, and the cam plate 7 is rotated by the manual handle 5 to switch.

According to this embodiment, since the next switching operation is impossible unless the manual handle 5 is removed, it is possible to reliably prevent the malfunction of skipping the next operation.

In addition, as shown in Fig. 7C, the lock lever 16 is pulled out at each of the positions of " insertion ", " break ", or " ground " Since the movement of the lock hook 20b is prevented and the shutter 20 cannot be opened by this, the lock at the predetermined position can be more secured.

According to the present invention, since the mechanical lock by the cam mechanism is performed, a malfunction that skips the next operation can be prevented.

Further, according to the present invention, since the manual handle cannot be pulled out unless it is in the "insertion", "hang", or "ground" position completely, the operation can be reliably performed.

Claims (3)

In the actuator for the switch which rotates the output shaft with a motor or a manual handle to switch the "opening", "breaking" and "grounding" of the switch, Cam plate installed on the output shaft, A concave portion formed at a portion corresponding to each position of the "opening", "breaking" and "grounding" of the switch on the peripheral edge of the cam plate, and a pin contacting the switch for stopping the motor formed on the surface of the cam plate; A cam follower lever vertically moved by the rotation of the cam plate, including a cam transmission roller and a lock roller, which are applied by a force applied to the circumferential edge of the cam plate; The holding latches for locking the rotation of the output shaft by locking the rollers in the recesses of the cam plate at the "loading", "breaking" or "grounding" positions of the cam plate; A micro switch for detecting engagement between the recess of the cam plate and the cam-driven roller, a lock release member which rotates by horizontal movement of the lock lever, extracts the lock roller from the recess of the retaining latch, and releases the lock; and Actuator for a switch characterized in that it comprises a lock release rod driven by a magnet. The manual handle according to claim 1, wherein a locking groove is formed in a circumference of a cylindrical shaft portion to be inserted into the operation shaft for driving the output shaft, and a tapered portion is formed at the tip end thereof. At the same time, it has a hook that moves up and down to catch or disengage the manual groove of the manual handle. At the same time, it is supported by a force applied to the operation shaft in the long hole, and is rotated by the vertical movement of the cam driven lever, and the hook moves up and down. Actuator for a switchgear comprising a lever for movement. 2. The lock lever according to claim 1, wherein the lock lever is formed on a lower edge side of the shutter side for opening and closing a long hole into which a shaft for supporting a roller of a cam driven lever is inserted, and a manual handle insertion hole for inserting a manual handle into an operation shaft. And a lock hook that rotates by hook opening and closing by opening and closing the shutter, and a lock hook for entering and exiting the hook locking groove of the lock lever.

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