JPH0565036U - Operating device for switchgear - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an inexpensive device that has a high-speed opening / closing operation, has a simple configuration. [Structure] An upper nut 11 and a lower nut 12 which are screwed to an upper operating shaft 5 for a disconnector and a lower operating shaft 7 for a grounding switch and move by rotation of both operating shafts 5 and 7, and rotatably provided on a main shaft 23. A main hoisting lever 24 that is rotated by the movement of the upper nut 11, a main hoisting clutch 27 that transmits the rotation of the main hoisting lever 24 to the main shaft 23, and a tip end portion of a main spring lever 30 fixed to the main shaft 23. It is provided between the main spring lever 30 and the main spring lever 30 and is compressed by the rotation of the main spring lever 30. When the leading end of the main spring lever 30 passes through the dead center, the main hoisting clutch 27 disengages and extends. The spring 35 that rotates at high speed, the main drive clutch 37 that transmits the high speed rotation of the main shaft 23 to the main drive lever 36, and the position of the main lever 13 provided between the tip of the main drive lever 36 and the lower nut 12. Open and close by And a connecting device 16 for performing the above.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switchgear operating device that combines a disconnecting switch and a grounding switch and performs a series of opening and closing operations in three states of disconnecting switch on / off and grounding switch on.

[0002]

[Prior Art]

 Conventionally, a device for performing a series of opening / closing operations in three states of disconnection switch ON / OFF and ground switch ON / OFF has a configuration shown in FIG. In the figure, 1 is a main body of the apparatus, which comprises a front plate 2, a rear plate 3 and a connecting rod 4 connecting the two plates 2 and 3. 5 is an upper operating shaft for a disconnector which is rotatably supported on the upper part of the main body 1 and which is formed with a left screw 6, and 7 is a ground switch which is rotatably supported on the lower part of the body 1 and is formed with a right screw 8. Lower operation shafts, 9 and 10 are connected to the ends of both operation shafts 5 and 7, and are upper motors and lower motors that rotate both operation shafts 5 and 7, 11 and 12 are screwed onto both operation shafts 5 and 7. A rectangular parallelepiped upper nut and a lower nut 13 are main levers whose both ends are connected to both nuts 11 and 12. The upper end is pivotally supported by the upper pin 14 of the upper nut 11, and the lower end is the lower pin of the lower nut 12. Being supported by 15.

Reference numeral 16 denotes a connecting device, the base of which is connected to the center pin 17 of the main lever 13, and the state of the disconnecting device is A, the state of disconnecting B is the The state changes to C with the ground switch on. FIG. 13 shows a state A in which the disconnector is turned on, and when the upper operating shaft 5 is rotated counterclockwise by the upper motor 9 from this state, the upper operating shaft 5 is rotated counterclockwise when viewed from the X direction. The nut 11 moves to the right, the main lever 13 rotates clockwise around the lower pin 15, the upper pin 14 moves to the final upper position 19, the center pin 17 moves to the cutting position 20, The moving state of the tip portion 18 of the coupling device 16 brings the state B into the cut state.

Next, when the lower motor 10 is rotated from the cut state B by the lower motor 10 in the time direction when viewed from the X direction, the lower nut 12 moves to the right by the clockwise rotation of the lower operation shaft 7. Then, the main lever 13 rotates counterclockwise about the upper position 19, the lower pin 15 moves to the final lower position 21, the center pin 17 moves to the grounding switch entry position 22, and the connecting device 16 Due to the movement of the tip portion 18 of the above, the state C in which the ground switch is turned on is established.

When the lower motor 10 rotates the lower operation shaft 7 counterclockwise from this state C, the lower nut 12 moves to the left and the main lever 13 moves to the upper position 19 in the opposite manner to the above. 13, the lower pin 15 moves to the position shown in FIG. 13, the center pin 17 moves to the cutting position 20, and the cutting state B is set. Further, when the upper operation shaft 5 is rotated clockwise from the state B by the upper motor 9, the upper nut 11 moves leftward and the main lever 13 rotates counterclockwise about the lower pin 15 in FIG. Then, the upper pin 14 moves to the position shown in FIG. 13, the center pin 17 moves to the position shown in FIG. 13, and the state A of the disconnector is shown in FIG.

[0006]

[Problems to be solved by the device]

 In the case of the conventional operating device, the opening / closing speed is about several centimeters per second because it depends on the rotating speed of each operating shaft 5, 7, that is, the moving speed of the nuts 11, 12. Therefore, for example, when the disconnector is installed on the primary side of the transformer and used for switching the exciting current of the transformer, the current switching capability may be insufficient. In order to have sufficient current switching capability for both the disconnecting switch and the grounding switch, high speed operation of about several meters per second is required, and the conventional device cannot obtain the required high speed operation. The present invention has been made in consideration of the above points, and an object thereof is to provide an operating device for an opening / closing device, which can achieve a high-speed opening / closing operation, has a simple structure, and is inexpensive.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention combines a disconnecting switch and a grounding switch so that a single unit can perform a series of opening / closing operations in three states: disconnection switch on / off and grounding switch on / off. In the operating device for open / close devices, an upper operating shaft for a disconnector and a lower operating shaft for a grounding switch, which are provided in parallel, and an upper nut and a lower screw that are screwed onto both operating shafts and move by rotation of both operating shafts. A nut; a main shaft; a main hoisting lever rotatably mounted on the main shaft and rotated by movement of the upper nut; a main hoisting clutch for transmitting the rotation of the main hoisting lever to the main shaft; It is provided between the main spring lever fixed to the main shaft and the tip and base of the main spring lever, compressed by the rotation of the main spring lever, and passes through the dead point of the tip of the main spring lever. The main winding clutch disengages and extends, and the main spring lever Spring for rotating the main shaft at high speed, a main drive lever rotatably provided on the main shaft, a main drive clutch for transmitting the high speed rotation of the main shaft to the main drive lever, and a tip of the main drive lever. A main lever provided between the lower portion and the lower nut, and a connecting device that is connected to the central portion of the main lever and that performs the opening / closing operation in the three states depending on the position of the central portion.

Further, the present invention provides an upper operating shaft for a disconnecting switch and a lower operating shaft for a grounding switch, which are provided in parallel, and an upper nut and an upper nut that are screwed to the operating shafts and move by rotation of the operating shafts. And a lower nut, a main shaft, a main hoisting lever rotatably provided on the main shaft and rotated by movement of the upper nut, and a main hoisting clutch that transmits the rotation of the main hoisting lever to the main shaft, A main spring lever fixed to the main shaft, a sub shaft, a sub hoisting lever rotatably provided on the sub shaft and rotated by movement of the lower nut, and rotation of the sub hoisting lever to the sub shaft. The auxiliary winding clutch for transmission, the auxiliary spring lever fixed to the auxiliary shaft, and the main and auxiliary spring levers provided between the tip of the main spring lever and the tip of the auxiliary spring lever. Is compressed by the rotation of the When the dead center is passed, the main and sub winding clutch disengages and extends, and the main and sub springs rotate at high speed through the main and sub spring levers, and the sub shaft rotatably provided on the sub shaft. A drive lever, an auxiliary drive clutch for transmitting the high speed rotation of the auxiliary shaft to the auxiliary drive lever, and a main lever provided between the tip of the main drive lever and the tip of the auxiliary drive lever, And a connecting device that is connected to the central portion of the main lever and that performs the opening / closing operation in the three states depending on the position of the central portion.

[0009]

[Action]

 In the operating device for the opening / closing device of the present invention configured as described above, the rotation of the operating shaft causes the nut to move, thereby rotating the hoisting lever that is rotatable around the main shaft, and the rotation is transmitted to the main shaft through the clutch. The rotation of the main shaft compresses the spring via the spring lever, the spring lever rapidly expands by passing through the dead center of the spring lever, and the main shaft rotates rapidly, and the rapid rotation of the main shaft is transmitted to the main lever via the drive lever. The connecting device connected to the central part of the main lever opens and closes rapidly, and the required high-speed opening and closing operations are performed.

[0010]

【Example】

 An embodiment will be described with reference to FIGS. 1 to 12. In these figures, the same reference numerals as those in FIG. 13 indicate the same or corresponding ones. (Embodiment 1) In FIGS. 1 to 6 showing Embodiment 1, reference numeral 23 is a main shaft provided above both operation shafts 5 and 7 in a direction orthogonal to both operation shafts 5 and 7, and 24 is a main shaft. 23 is a main winding lever which is rotatably provided at 23, and a groove 25 at the tip portion is linked to a roller 26 of the upper nut 11 of the upper operating shaft 5 and is rotated by the movement of the upper nut 11. Reference numeral 27 denotes a main hoisting clutch that transmits the rotation of the main hoisting lever 24 to the main shaft 23, and is configured by engaging and disengaging a protrusion 28 of the main hoisting lever 24 and a protrusion 29 of the main shaft 23.

Reference numeral 30 is a main spring lever fixed to the main shaft 23, 31 is a pin fixed to the tip of the main spring lever 30, and 32 is a rod-shaped upper spring guide whose upper end is rotatably supported by the pin 31. Reference numerals 33 and 33 denote fixing pins provided on the base portion, and 34 denotes a cylindrical lower spring guide whose lower end portion is pivotally supported by the fixing pin 33, and an upper spring guide 32 is movably fitted therein. Reference numeral 35 is a spring fitted in both spring guides 32 and 34. Reference numeral 36 denotes a main drive lever rotatably provided on the main shaft 23, and 37 denotes a main drive clutch for transmitting the rotation of the main shaft 23 to the main drive lever 36. The protrusion 38 of the main shaft 23 and the protrusion 39 of the main drive lever 36. It is configured by engaging and disengaging with. 40 is a pin at the tip of the main drive lever 36, and the upper end of the main lever 13 is pivotally supported.

Next, the operation of the first embodiment will be described. 1 to 5 show the state in which the disconnector is inserted. When the upper operating shaft 5 is rotated counterclockwise when viewed from the X direction in FIG. 1 by the rotation of the upper motor 9 for the disconnector, the upper nut in FIG. 11 moves to the right, the main hoisting lever 24 rotates counterclockwise, the main shaft 23 rotates counterclockwise via the main hoisting clutch 27, and the main spring lever 30 also rotates counterclockwise. Rotate to. As shown in FIGS. 1 and 3, the rotation of the main spring lever 30 compresses the spring 35, the pin 31 reaches the bottom dead center, and when the pin 31 further passes the bottom dead center, the repulsive force of the spring 35 causes the main spring 31 to move. The main shaft 23 is rotated counterclockwise at high speed by leaving the hoisting clutch 27, the main drive lever 36 is rotated counterclockwise at high speed via the main driving clutch 37, and the main lever 13 is rotated clockwise at high speed. The pin 40 moves to the final upper position 19, the center pin 17 moves to the cut position 20, and the connecting device 16 moves at high speed to move from the disconnecting switch-on state to the disconnecting state at high speed. The main drive lever 36 is stopped at a predetermined position by a stopper (not shown) during high speed rotation. Next, the operation from the off state to the grounded switch on state, and the operation from the on state to the off state are the same as in the case of FIG. 13 described above. Then, from the OFF state to the ON state of the disconnecting switch, the reverse rotation of the upper motor 9 causes a reverse operation to the high speed operation.

(Embodiment 2) In FIGS. 7 to 12 showing Embodiment 2, the points different from Embodiment 1 are the following points. In these figures, 41 is below the lower operation shaft 7 and the main shaft 23 The auxiliary shaft 42 is provided in parallel with the auxiliary shaft 42, and the auxiliary hoisting lever 42 is rotatably provided on the auxiliary shaft 41. The groove 43 at the tip is linked to the roller 44 of the lower nut 12 of the lower operation shaft 7. , Rotates by moving the lower nut 12. Reference numeral 45 denotes a sub-winding clutch that transmits the rotation of the sub-winding lever 42 to the sub-shaft 41, and is configured by engaging and disengaging the protrusion 46 of the sub-winding lever 42 and the protrusion 47 of the sub-shaft 41.

Reference numeral 48 is an auxiliary spring lever fixed to the auxiliary shaft 41, 49 is a pin fixed to the tip of the auxiliary spring lever 48, which is a substitute for the fixing pin 33, and the lower end of the lower spring guide 34 is It is pivotally supported by a pin 49. Reference numeral 50 denotes an auxiliary drive lever rotatably provided on the auxiliary shaft 41, and 51 denotes an auxiliary drive clutch for transmitting the rotation of the auxiliary shaft 41 to the auxiliary drive lever 50. The protrusion 52 of the auxiliary shaft 41 and the auxiliary drive lever 50 are connected to each other. It is configured by engaging and disengaging with the protrusion 53. Reference numeral 54 denotes a pin at the tip of the auxiliary drive lever 50, which is a substitute for the lower pin 15 of the lower nut 12, and the lower end of the main lever 13 is pivotally supported.

Next, the operation of the second embodiment will be described. 7 to 11 show a state in which the disconnector is turned on, and the operation from the state in which the switch is turned on to the state in which the switch is turned off and the operation from the state in which the switch is turned off to the state in which the switch is turned on are the same as those in the first embodiment. The operation to be performed is the operation from the off state to the state of turning on the ground switch and the operation from the state of turning on the ground switch to the state of off. That is, when the lower operation shaft 7 is rotated in the clockwise direction when viewed from the X direction in FIG. 7 by the rotation of the lower motor 10 for the ground switch in the off state, the lower nut 12 in FIG. The hoisting lever 42 rotates clockwise, the sub shaft 41 rotates clockwise via the sub winding clutch 45, and the sub spring lever 48 also rotates clockwise.

As shown in FIGS. 7 and 9, the rotation of the sub spring lever 48 causes the spring 35 to be compressed so that the pin 49 reaches the top dead center and further passes through the top dead center. By force, the sub-winding clutch 45 is released and the sub-shaft 41 rotates clockwise at high speed, the sub-driving lever 50 rotates clockwise at high speed via the sub-driving clutch 51, and the main lever 13 rotates counter-clockwise at high speed. Then, the pin 54 moves to the final lower position 21, the center pin 17 moves to the grounding switch entry position 22, and the connecting device 16 moves at a high speed to quickly change from the cut state to the grounding switch entry state. To work. The auxiliary drive lever 51 is stopped at a predetermined position by a stopper (not shown) during high speed rotation. Next, from the ON state of the grounding switch to the OFF state, the lower motor 10 rotates in the reverse direction, and the reverse operation to the high speed operation is performed.

[0017]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. The nut is moved by the rotation of the operating shaft for the disconnecting switch or the earthing switch, and the hoisting lever rotatable about the main shaft or the sub shaft is rotated. The rotation of the shaft compresses the spring via the spring lever, the spring lever rapidly passes through the dead center, and the spring rapidly expands to rapidly rotate the main shaft or the auxiliary shaft. Is transmitted to the main lever, and the connecting device connected to the central portion of the main lever performs the opening / closing operation rapidly, and the required high-speed opening / closing operation can be performed, and the structure is simple and inexpensive.

[Submission date] November 30, 1992

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

Further, the present invention provides an upper operating shaft for a disconnecting switch and a lower operating shaft for a grounding switch, which are provided in parallel, and an upper nut and an upper nut that are screwed to the operating shafts and move by rotation of the operating shafts. And a lower nut, a main shaft, a main hoisting lever rotatably provided on the main shaft and rotated by movement of the upper nut, and a main hoisting clutch that transmits the rotation of the main hoisting lever to the main shaft, A main spring lever fixed to the main shaft, a sub shaft, a sub hoisting lever rotatably provided on the sub shaft and rotated by movement of the lower nut, and rotation of the sub hoisting lever to the sub shaft. The auxiliary winding clutch for transmission, the auxiliary spring lever fixed to the auxiliary shaft, and the main and auxiliary spring levers provided between the tip of the main spring lever and the tip of the auxiliary spring lever. Is compressed by the rotation of the The main at dead center passage, the clutch is extended out on Fukumaki, before Symbol primary, the secondary shaft and spring for high-speed rotation, the main drive lever provided rotatably on the main shaft, high speed of the main spring lever A main drive clutch for transmitting rotation to the main drive lever, a sub drive lever rotatably provided on the sub shaft, a sub drive clutch for transmitting high speed rotation of the sub shaft to the sub drive lever, and the main drive A main lever provided between the front end of the lever and the tip of the sub-driving lever, and a connecting device that is connected to the central part of the main lever and performs opening / closing operation in the three states depending on the position of the central part. It is equipped with and.

[Brief description of drawings]

FIG. 1 is a cut front view of a first embodiment of the present invention.

FIG. 2 is a right side view of the section of FIG.

FIG. 3 is a diagram illustrating a part of the operation of FIG.

FIG. 4 is a diagram illustrating another part of the operation of FIG. 1.

5 is a perspective view of a part of FIG. 1. FIG.

FIG. 6 is an exploded perspective view of a part of FIG.

FIG. 7 is a cut front view of a second embodiment of the present invention.

8 is a right side view of the section of FIG. 7. FIG.

9 is an explanatory diagram of a part of the operation of FIG. 7.

10A and 10B are operation explanatory views of another part of FIG.

11 is a perspective view of a part of FIG. 7. FIG.

FIG. 12 is an exploded perspective view of a part of FIG.

FIG. 13 is a cut front view of a conventional example.

[Explanation of symbols]

 5 Upper operation shaft 7 Lower operation shaft 11 Upper nut 12 Lower nut 13 Main lever 16 Connection device 23 Main shaft 24 Main hoisting lever 27 Main hoisting clutch 30 Main spring lever 35 Spring 36 Main drive lever 37 Main drive clutch 41 Secondary shaft 42 Sub winding lever 45 Sub winding clutch 48 Sub spring lever 50 Sub drive lever 51 Sub drive clutch

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[Procedure amendment]

[Submission date] November 30, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Item name to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (2)

[Scope of utility model registration request] 1. A combination of a disconnecting switch and a grounding switch to perform a series of opening / closing operations in three states of disconnecting switch on / off and grounding switch on.
In a switchgear operating device that is operated on a stand, the upper operating shaft for disconnecting switch and the lower operating shaft for grounding switch, which are provided in parallel, are screwed to both operating shafts and moved by rotation of both operating shafts. An upper nut and a lower nut, a main shaft, a main hoisting lever rotatably provided on the main shaft and rotated by the movement of the upper nut, and a main hoisting clutch for transmitting the rotation of the main hoisting lever to the main shaft. A main spring lever fixed to the main shaft, provided between the tip and the base of the main spring lever, and compressed by the rotation of the main spring lever,
A spring for rotating the main shaft at a high speed via the main spring lever when the main hoisting clutch is disengaged and extends when the leading end of the main spring lever passes through a dead center, and a main drive rotatably provided on the main shaft. A lever, a main drive clutch for transmitting high-speed rotation of the main shaft to the main drive lever, a main lever provided between a tip portion of the main drive lever and the lower nut, and a central portion of the main lever. An operating device for an opening / closing device, comprising a connecting device that is connected and performs the opening / closing operation in the three states depending on the position of the central portion. 2. A combination of a disconnecting switch and a grounding switch, and a series of opening / closing operations in three states of disconnecting switch on / off and grounding switch on
In a switchgear operating device that is operated on a stand, the upper operating shaft for disconnecting switch and the lower operating shaft for grounding switch, which are provided in parallel, are screwed to both operating shafts and moved by rotation of both operating shafts. An upper nut and a lower nut, a main shaft, a main hoisting lever rotatably provided on the main shaft and rotated by the movement of the upper nut, and a main hoisting clutch for transmitting the rotation of the main hoisting lever to the main shaft. A main spring lever fixed to the main shaft, a sub shaft, a sub winding lever rotatably provided on the sub shaft and rotated by movement of the lower nut, and rotation of the sub winding lever A sub-winding clutch for transmitting to the shaft, a sub-spring lever fixed to the sub-shaft, and a main spring spring lever provided between the main spring lever front end portion and the sub-spring lever front end portion. Is compressed by the rotation of the The main and sub winding clutch disengages and extends when the tip of the rotor passes through the dead center, and the main and sub springs rotate at high speed via the main and sub spring levers and the sub shaft is rotatable. An auxiliary drive lever provided, an auxiliary drive clutch for transmitting the high speed rotation of the auxiliary shaft to the auxiliary drive lever, and a main member provided between the tip of the main drive lever and the tip of the auxiliary drive lever. An operating device for an opening / closing device, comprising: a lever; and a connecting device that is connected to a central part of the main lever and performs an opening / closing operation in the three states depending on a position of the central part.