JPH0581970A - Disconnector operating mechanism - Google Patents

Abstract

PURPOSE:To provide a disconnector operating mechanism in which the operating time is shortened, and a Geneva gear 2 is smoothly moved with good stopping precision. CONSTITUTION:A Geneva gear 2 is driven by a driving lever 4 having a plurality of driving pins 4a to shorten the operating time. A chain lock releasing member operated by the driving lever 4 releases the chain lock of a stopper 6a energized in the chain lock position. Since the drive and chain lock of the Geneva gear 2 are conducted by the 180 deg. rotation of a driving shaft 3, the operating time of a disconnector can be shortened. The gear 2 is smoothly moved with satisfactory stopping precision.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disconnector operating mechanism for operating a disconnector.

[0002]

2. Description of the Related Art FIG. 4 shows a perspective view of a conventional disconnector operating mechanism.

FIG. 4 shows an operating mechanism of a three-position disconnector.
The state of the disconnector body (not shown) in the "off" position between the "on" position and the "ground" position is shown, and the output shaft 1 is connected to a known disconnector body (not shown). Geneva Gear 2
Is fixed to the output shaft 1, and the drive lever 4 fixed to the drive shaft 3 is engaged with the slit 2a of the Geneva gear 2 and the drive pin 4a.
Have. The arcuate groove 2c of the Geneva gear 2 engages with the block 4b of the drive lever 4, and is locked and held at each position.

Next, the operation of the conventional example shown in FIG. 4 will be described. By rotating the drive shaft 3 counterclockwise, the drive lever 4 also rotates and the drive pin 4a enters the slit 2a of the Geneva gear 2. Immediately before the drive pin 4a is engaged with the slit 2a, the block 4b and the arc groove 2c are disengaged,
By engaging the drive pin 4a and the slit 2a, the output shaft 1 is rotated right by the angle between the slits 2a, and the disconnector body is "grounded".
The position. Immediately after the drive pin 4a comes out of the slit 2a, the block 4b and another circular arc groove 2c are engaged and locked,
It will hold the disconnector body in the "grounded" position.

When the drive shaft 3 is rotated clockwise, the drive pin 4a engages with the slit 2a of the Geneva gear, the output shaft 1 is rotated counterclockwise by the angle between the slits 2a, and the disconnector body is in the "ON" position. Becomes

[0006]

Since the conventional disconnector operating mechanism is constructed as described above, it is necessary to rotate the drive shaft 3 360 degrees including an angle which is not effective for driving the Geneva gear 2. There was a drawback that the operation time was long. In addition, at the moment immediately before the engagement between the drive pin 4a and the slit 2a and at the moment immediately after the engagement is released, the engagement between the block 4b and the arc groove 2b is not accurate, and the operation of the Geneva gear 2 is not smooth. ..

The present invention has been made to solve the above problems, and an object of the present invention is to provide a disconnector operating mechanism in which the operation time is shortened, the Geneva gear operates smoothly, and the stopping accuracy is good. ..

[0008]

According to a first aspect of the present invention, there is provided a disconnector operating mechanism including a Geneva gear for driving a movable portion of a main body of the disconnector, a drive lever having a plurality of drive pins for driving the Geneva gear, A stopper for locking the Geneva gear, and a lock releasing member which is operated by the drive lever and releases the lock of the stopper. According to another aspect of the present invention, there is provided a disconnector operating mechanism, wherein a Geneva gear for driving a movable part of a main body of the disconnector, a drive lever having a plurality of drive pins for driving the Geneva gear, and a lock for the Geneva gear. A stopper, a lock release member that is operated by the drive lever to release the lock of the stopper, and an adjusting unit that adjusts the operation of the lock release member by the drive lever are provided. According to another aspect of the present invention, there is provided a disconnector operating mechanism including a Geneva gear for driving a movable part of a main body of the disconnector, a drive lever having a plurality of drive pins for driving the Geneva gear, and a lock for locking the Geneva gear. A stopper, a limit switch that conducts depending on the position of the drive lever, an electromagnetic device that is driven when the limit switch conducts, and unlocks the stopper.
It is equipped with.

[0009]

When the drive shaft is rotated 180 degrees by the plurality of drive pins, the Geneva gear is driven by one pitch.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a first embodiment of the disconnector operating mechanism of the present invention, showing the state of the disconnector body in the "OFF" position.

FIG. 1 shows the state of the "off" position between the "on" position and the "ground contact" position in the three-position disconnector main body (not shown). The output shaft 1 is connected to a known disconnector main body (not shown). The Geneva gear 2 is fixed to the output shaft 1. The drive lever 4 fixed to the drive shaft 3 includes two drive pins 4a arranged to face each other.
4a engages with the slit 2a of the Geneva gear 2. The roller 6b at one end of the link 6 engages with the cam 5 fixedly connected to the drive shaft 3, and the other end of the link 6 has a stopper 6a which engages with the groove 2b for locking the Geneva gear 2. The link 6 is provided with male threads 6c and male threads 6d having mutually opposite threads in the middle part, and the female threads are also provided with the opposite female groove in the adjusting ring 9 accordingly. And adjustment ring 9
The length of the link 6 is adjusted by rotating the. When the disconnector main body is in the "OFF" position, the groove 2b of the Geneva gear 2 and the stopper 6a are securely engaged with each other and the Geneva gear 2
And the drive shaft 3 is rotated from the "OFF" position, the groove 2b and the stopper 6a are securely disengaged to generate the Geneva gear 2.
It can be adjusted by rotating the adjusting ring 9 so as to release the lock. Fixed block 8 is an inner cylinder 8b
The return spring 7 is internally provided and the inner cylinder 8b and the stopper 6a of the link 6 are engaged with each other by fitting.

The operation of the first embodiment whose configuration has been described with reference to FIG. 1 will be described below. By rotating the drive shaft 3 clockwise by 180 degrees, the drive lever 4 and the cam 5 fixed to the drive shaft 3 rotate, the cam 6 operates the link 6 via the roller 6b, and the stopper 6a moves into the groove 2b. The locking of the Geneva gear 2 is released by being disengaged from. Next, when the drive pin 4a fixed to the drive lever 4 enters the slit 2a of the Geneva gear 2, the output shaft 1 is opposed by one pitch defined by the angle of the slit 2a by the engagement of the drive pin 4a and the slit 2a. Rotate clockwise to place the disconnector body in the "ON" position. Further, the stopper 6a is engaged with the groove 2b by the return spring 7 to lock the Geneva gear 2. Then, when the drive shaft 3 is rotated counterclockwise by 180 degrees, the disconnector main body is in the "OFF" position again, and when the drive shaft 3 is further rotated counterclockwise by 180 degrees, the output shaft 1 has the slit 2a. It rotates counterclockwise by an angle and the disconnector body is in the "grounding" position.

FIG. 2 shows a second embodiment of the disconnector operating mechanism according to the present invention, showing the state of the disconnector body (not shown) in the "OFF" position.

FIG. 2 shows the state of the "off" position between the "on" position and the "ground" position of the operating mechanism of the three-position disconnector. The output shaft 1 is connected to a known disconnector main body (not shown). The Geneva gear 2 is fixed to the output shaft 1.
The drive lever 4 fixed to the drive shaft 3 is provided with two drive pins 4a arranged to face each other, and the drive pins 4a engage with the slits 2a of the Geneva gear 2. The switch operation blocks 4c and 4d fixed to both ends of the drive lever 4 are
In the "OFF" position, the limit switches LS1 and LS2 are engaged, and the limit switches LS1 and LS2 are shut off. When the drive lever 4 is rotated in either direction from the "OFF" position, the switch operating blocks 4c, 4d
The engagement with and the limit switches LS1 and LS2 become conductive. The limit switches LS1 and LS2 are connected in parallel so as to operate in the OR logic, and are connected in series with the solenoid 11 to the power source E. The power switch SW is a normal type switch that is normally conducting. The plunger 12 is attracted when the solenoid 11 is excited, but when the solenoid 11 is shut off, the spring inside the solenoid 11
By the action of 13, the stopper 12a provided at the tip of the plunger 12 moves to a position where it engages with the groove 2b of the Geneva gear 2. When the solenoid 11 is deenergized, the stopper 12a provided at the tip of the plunger 12 is actuated by the action of the spring 13.
Securely engages with the groove 2b of the Geneva gear 2 to lock the Geneva gear 2, and the plunger 12 is attracted when the solenoid 11 is excited, so that the engagement between the stopper 12a and the groove 2b is surely released. It is possible to release the lock of the Geneva gear 2. Although FIG. 2 shows the disconnector main body in the “OFF” position, the switch operating blocks 4c, 4d fixed to both ends of the drive lever 4 even when the disconnector main body is in the “ON” position and the “GROUND” position. Engages with the limit switches LS2 and LS1, respectively, and shuts off the limit switches LS2 and LS1. When the drive lever 4 is slightly rotated in either direction from the "ON" position and the "GROUND" position, the switch operation blocks 4c, 4d
Since the engagement with is released, the limit switches LS2, LS1 become conductive.

The operation of the second embodiment whose configuration has been described with reference to FIG. 2 will be described below. By rotating the drive shaft 3 clockwise by 180 degrees, the drive lever 4 fixed to the drive shaft 3 rotates. When the drive lever 4 rotates a little in either direction from the "OFF" position, the switch actuation blocks 4c, 4d
Since the engagement with is released, the limit switches LS1 and LS2 become conductive and the solenoid 11 is excited by the power source E. Therefore, the plunger 12 is aspirated,
The stopper 12a provided at the tip of 12 and the groove 2b are disengaged, and the locking of the Geneva gear 2 is released. Next, when the drive pin 4a fixed to the drive lever 4 enters the slit 2a of the Geneva gear 2, the output shaft 1 causes the drive pin 4a and the slit 2a.
By the engagement of 1), it rotates counterclockwise by one pitch defined by the angle of the slit 2a to put the disconnector main body in the "ON" position. When the drive shaft 3 rotates 180 degrees to the "on" position, the switch actuation blocks 4c and 4d are engaged with the limit switches LS2 and LS1, respectively, and cut off, so that the solenoid 11 is turned off. Therefore, due to the action of the spring 13 incorporated in the solenoid 11, the stopper 12a provided at the tip of the plunger 12 moves to the position where it engages with the groove 2b and locks the Geneva gear 2. Then, when the drive shaft 3 is further rotated counterclockwise by 180 degrees, the disconnector body is again in the "OFF" position, and when the drive shaft 3 is further rotated counterclockwise by 180 degrees, the output shaft 1 is slit 2a. It rotates counterclockwise by an angle of, and the disconnector body is in the "grounding" position.

FIG. 3 shows a third embodiment of the disconnector operating mechanism of the present invention, showing the state of the disconnector body in the "OFF" position.

FIG. 3 shows the state of the 3-position disconnector body in the "off" position, which is between the "on" and "ground" positions. The output shaft 1 is connected to a known disconnector main body (not shown). The Geneva gear 2 is fixed to the output shaft 1. The drive lever 4 fixed to the drive shaft 3 is arranged opposite to the drive lever 2.
The driving pin 4a is provided with the driving pin 4a, and the driving pin 4a engages with the slit 2a of the Geneva gear 2. The roller 15b at one end of the push-pull cable 15 engages with the cam 5 fixedly attached to the drive shaft 3, and the other end of the push-pull cable 15 engages with the groove 2b for locking the Geneva gear 2. It has a stopper 15a. The push-pull cable 15 is adjusted in a known manner so that the groove 2b of the Geneva gear 2 and the stopper 15 can be adjusted.
It is possible to adjust the a to engage and lock. The fixed block 8 has a return spring 7 in the inner cylinder 8b and a stopper for the inner cylinder 8b and the wire release 15.
It is engaged with 15a by fitting.

The operation of the third embodiment, which has been described with reference to FIG. 3, will be described below. By rotating the drive shaft 3 180 degrees clockwise, the drive lever 4 and the cam 5 fixed to the drive shaft 3 rotate. The cam 5 operates the push-pull cable 15 via the roller 15b, and the stopper 15
a disengages from groove 2b. As a result, the locking of the Geneva gear 2 is released. Drive pin 4a fixed to drive lever 4
When is inserted into the slit 2a of the Geneva gear 2, the output shaft 1 is rotated counterclockwise by the engagement of the drive pin 4a and the slit 2a by one pitch defined by the angle of the slit 2a, and the disconnector body is turned on. To the position. At this time, the stopper 15a is engaged with the groove 2b by the return spring 7 and the Geneva gear 2
Lock. Then, when the drive shaft 3 is rotated counterclockwise by 180 degrees, the disconnector body is again in the "OFF" position, and when the drive shaft 3 is rotated further counterclockwise by 180 degrees, the output shaft 1 is rotated by the angle of the slit 2a. It rotates counterclockwise and the disconnector body is in the "ground" position.

[0019]

As described above, according to the present invention, the drive shaft 3 is controlled by the drive means and the locking means of the Geneva gear 2.
Since it is carried out at every 180 degree rotation position, the operation time of the disconnector can be shortened, the operation of the Geneva gear 2 is smooth, and the stopping accuracy is good.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a disconnector operating mechanism of the present invention.

FIG. 2 shows a second embodiment of the disconnector operating mechanism of the present invention.

FIG. 3 shows a third embodiment of the disconnector operating mechanism of the present invention.

FIG. 4 shows a perspective view of a conventional disconnector operating mechanism.

[Explanation of symbols]

 1 Output shaft 2 Geneva gear 3 Drive shaft 4 Drive lever 4a Drive pin 6 Link 6a Stopper 9 Adjustment ring 11 Electromagnetic device 12 Plunger 12a Stopper 15 Push-pull cable 15a Stopper LS1 Limit switch LS2 Limit switch

Claims (3)

[Claims] 1. A Geneva gear for driving a movable part of a main body of a disconnector, a drive lever having a plurality of drive pins for driving the Geneva gear, a stopper for locking the Geneva gear, and an operation by the drive lever And a lock release member for releasing the lock of the stopper. 2. A Geneva gear for driving a movable part of a main body of a disconnector, a drive lever having a plurality of drive pins for driving the Geneva gear, a stopper for locking the Geneva gear, and an operation by the drive lever A disconnecting device operating mechanism comprising: a locking releasing member that releases the locking of the stopper; and an adjusting unit that adjusts an operation of the locking releasing member by the drive lever. 3. A Geneva gear for driving a movable part of the main body of the disconnector, a drive lever having a plurality of drive pins for driving the Geneva gear, a stopper for locking the Geneva gear, and a position of the drive lever. A disconnecting switch operating mechanism comprising: a limit switch that conducts by means of an electromagnetic device that is driven when the limit switch conducts and that unlocks the lock of the stopper.