JPH0527936U - Electric power equipment operation device - Google Patents

Abstract

(57) [Summary] [Purpose] Since the retainer that restrains the operation cam from moving during spring loading and tripping acts as a resistance against the operating force generated by the spring release. Provided is an operating device for an electric power device that does not generate such resistance force. [Configuration] An operation cam 2 is provided which is operatively connected to an electric power device through an operation shaft 1 and occupies a closing position and a tripping position. In an operating device provided with a drive lever 3 driven by, a rotary plate 13 which is rotatable around a bolt 12 is provided, and a stopper 14 for restraining the upward or downward movement of the protrusion 11 is fixed under the bolt 12. On the other hand, a pressed member 15 for removing the stopper 14 by rotating the rotating plate 13 in the clockwise direction immediately before the completion of the energy storage of the spring 4 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an operating device for a power device for opening and closing a disconnector.

[0002]

[Prior Art]

 In order to open and close the disconnecting switch and the grounding device in the gas insulated switchgear, an operating device is used that opens and closes at high speed by the spring force.

The configuration of a conventional operating device will be described with reference to FIG. An operation cam 2 is fixed to an operation shaft 1 which is linked to a disconnecting switch (not shown), and the operation cam 2 rotates by an angle shown by an arrow and occupies a closing position or a tripping position. On the other hand, a drive lever 3 which applies a driving force to the operation cam 2 to make it open and close at high speed is rotatably supported by the operation shaft 1 which also serves as a support shaft.

At the time of closing, the drive lever 3 is driven clockwise to a dead point and at the same time the spring 4 as an urging means is stored, and thereafter the urging force of the spring 4 rotates in the same direction at high speed. When the pin 5 is moved and the pin 5 as a pressing member integrated with the drive lever 3 hits the pin receiver 6 formed on the operation cam 2, insertion is performed. On the other hand, in the case of the trip, the drive lever 3 is driven counterclockwise to store and release the force.

Then, when the drive lever 3 rotates counterclockwise from the closed state of FIG. 5 to start storing energy of the spring 4 for tripping, the pin 5 is separated from the pin receiver 6 and operated. A semicircular cut-off portion 7, a steel ball 8 and a retainer 9 composed of a spring or the like are provided so that the cam 2 is in a free state and does not move out of the closed state due to some impact. The cut-off portion 7 is also provided for holding the tripped state.

[0006]

[Problems to be solved by the device]

 However, the following problems occur because a large load (resistance) is applied to the operation cam. As shown in Fig. 6, in the tripped state, the load due to the rotating seal is applied to the operation cam, and in the closed state, the load caused by the contact inserted in one electrode of the disconnector is also inserted in the other electrode. In addition, the load of the cage is added in the current state before operation (closed or tripped state). Therefore, a spring 4 sufficient to overcome these loads and rotate the operation cam is required, and a damper or the like for absorbing a large amount of energy is also required.

Therefore, the present invention aims to provide an operating device for an electric power device that solves the above problem.

[0008]

[Means for Solving the Problems]

 The configuration of the present invention to achieve such an object is an operation cam that is interlocked with an electric power device via an operation shaft and is rotated in one direction or the other direction to occupy a specific position. Between the drive lever and the fixed part, which is rotatably provided around the support shaft and includes a pressing member that can rotate the operation cam in any direction by pressing the operation cam. In an operating device for electric power equipment, which comprises an urging means interposed between the operating shaft and a driving means capable of driving the drive lever to a dead point from any direction, the operating shaft of the operating cam is located at a position distant from the operating shaft. While forming a protruding portion that protrudes in the extending direction, a stopper that is located between each position when the protruding portion is turned on and off, and a pressed member that is pressed by a pressing member or the like immediately before the completion of energy storage of the biasing means Characterized in that linked to interlocked.

[0009]

[Action]

 When the operation cam is in the closed state or the tripped state, the stopper is located between the respective positions of the projecting portion at the time of closing and tripping, so that the rotation of the operation cam having the projecting portion is restrained.

On the other hand, when the urging means starts accumulating from the state of closing or tripping and approaches the dead point of the completion of accumulation of energy, the pressing member pushes the member to be pressed and is in the state of closing and tripping. The stopper will come off from the position sandwiched by the protruding parts, and it will be possible to trip or insert.

[0011]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. Since the present embodiment is an improvement of a part of the conventional operating device for electric power equipment, the same parts as those of the prior art are designated by the same reference numerals, and the description thereof will be omitted. Only different parts will be described.

1A and 1B show the configuration of an operating device for electric power equipment according to the present invention. As shown in the figure, a pin 11 is provided at a position distant from the operation shaft 1 on the operation cam 2 as a protruding portion protruding toward the side opposite to the drive lever 3.

On the other hand, an L-shaped rotating member 13 is provided which is rotatable around a bolt 12 arranged above the pin 11. Below the bolt 12 of the rotating member 13, the upper movement of the pin 11 at the time of throwing in is restrained (see FIG. 2) and the lower movement of the pin 11 at the time of tripping is restrained (see FIG. 4). A rectangular parallelepiped stopper 14 having a suitable length in the vertical direction is fixedly provided on the surface facing the operation cam 2.

In addition, above the operation shaft 1 of the rotating member 13, a pressed member 15 bent in a dogleg shape is fixedly provided on the side facing the drive lever 3. As shown in FIGS. 1 and 3, when the rotational position of the drive rod 3 occupies the dead point, the pin 5 pushes the pressed member 15 upward, which causes the rotating member 13 to rotate clockwise. However, the restraint of the protruding portion 11 by the stopper 14 is released.

Next, the operation of the operating device for such power equipment will be described. When the drive lever 3 is driven in the clockwise direction from the tripped state shown in FIG. 4, the pin 5 that restrains the rotation of the operation cam 2 separates from the pin receiver 6, so that the conventional drive is performed by vibration or the like. Although the lever 3 freely rotates, in the present invention, since the stopper 14 restrains the downward movement of the protrusion 11, the operation cam 2 is locked in the tripped state even while the spring 4 is storing energy. .. When the drive lever 3 is rotated to near the dead point after the spring 4 is fully charged, the pin 5 pushes the pressed member 15 upward as shown in FIGS. 1 (a) and 1 (b). As a result, the rotating member 13 rotates in the clockwise direction, and the restraint of the protruding portion 11 by the stopper 14 is released. After that, when the drive lever 3 passes the dead point, the release lever of the spring 4 causes the drive lever 3 to rotate clockwise, and the pin 5 hits the pin receiver 6 to rotate the operation cam 2 clockwise. The input state shown in 2 is obtained.

Contrary to the above, when the drive lever 3 is driven counterclockwise from the closed state shown in FIG. 2, the stopper 14 now restrains the upward movement of the protrusion 11, and the spring 4 is stored. The drive lever 3 is locked in the closed state even during energization. When the driving force of the spring 4 is completed and the drive lever 3 is rotated to near the dead point as shown in FIG. 3, the pin 5 pushes up the pressed member 15 and the stopper 14 releases the restraint of the protruding portion 11 as described above. To be done. After that, the drive lever 3 passes the dead point, and the tripping state shown in FIG. 4 is obtained in the same manner as described above.

In the present embodiment, the rotating member that connects the stopper and the pressed member is configured to rotate, but the protruding portion that occupies the left or right position below the operation shaft is operated. While being mounted on the cam, the member to be pressed is connected to the upper part of the lift plate that is guided to move vertically, while the stopper is connected to the lower part between the left and right positions occupied by the protrusions. May be. Further, in the present embodiment, the pressing member is used to push up the pressed member, but a separate member may be provided.

[0018]

[Effect of the device]

 As can be seen from the above description, according to the operating device for an electric power device according to the present invention, the operation cam has a protrusion while the stopper and the pressed member are connected so as to interlock with each other. The rotation of the operation cam is restrained by the stopper only when it is rotated in the predetermined direction and in the other direction to be in a specific position and when the biasing means is storing energy. Therefore, unlike the conventional case, it is not necessary to provide a retainer for restraining the rotation of the operation cam while the biasing means is storing energy, and the releasing force of the biasing means is not hindered by the load of the retainer. ..

[Brief description of drawings]

1A and 1B show an operating device according to the present invention in a stored state immediately before being turned on, wherein FIG. 1A is a front view and FIG. 1B is a right side view.

FIG. 2 is an operation explanatory view showing a loading state according to the present invention.

FIG. 3 is an operation explanatory view showing a stored state immediately before tripping according to the present invention.

FIG. 4 is an operation explanatory view showing a tripped state according to the present invention.

FIG. 5 is an operation explanatory view of a conventional operating device.

FIG. 6 is a graph showing a load applied to an operation cam according to a conventional operation device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Operation shaft, 2 ... Operation cam, 3 ... Drive lever, 4 ... Spring, 5 ... Pin, 11 ... Projection part, 12 ... Bolt, 13 ... Rotation member, 14 ... Stopper, 15 ... Pressed member

Claims (1)

[Scope of utility model registration request] 1. An operation cam operatively connected to an electric power device via an operation shaft and rotated in one direction or another direction to occupy a specific position, and rotatably provided around a support shaft. In addition, a drive lever having a pressing member capable of rotating the operation cam in any direction by pressing the operation cam, an urging means interposed between the drive lever and the fixed portion, and the drive lever In the operating device for the electric power equipment, which is configured to be driven to the dead point also in the direction of, the projecting portion projecting in the extending direction of the operating shaft is formed at a position apart from the operating shaft in the operating cam. A stopper located between each position when the part is turned on and off,
An operating device for an electric power device, comprising a member to be pressed, which is pressed by a pressing member or the like immediately before the completion of energy storage of the urging means, so as to be interlocked.