JP2011192553A - Operation mechanism of switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To convert a rotating angle of a manual handle side operation shaft into a rotating angle of a disconnector side operation shaft, with a simple configuration. <P>SOLUTION: An operation mechanism of the switch includes the manually turning manual handle side operation shaft 10, an angle converting unit 12 coupled to the manual handle side operation shaft 10, and the disconnector side operation shaft 11 coupled to the angle converting unit 12 and coupled to the switch. The angle converting unit 12 is constituted of one angle converting plate 13 fixed to the manual handle side operation shaft 10, and the other angle converting plate 15 starting to turn behind the one angle converting plate 13 by a predetermined angle and fixed to the disconnector side operation shaft 11. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an operating mechanism for a switch that opens and closes a switch such as a disconnect switch.

  Conventionally, a disconnector housed in a metal closed switchgear or the like can open and close a main circuit by manually rotating an operation shaft from outside the panel (see, for example, Patent Document 1). .

  In this type of switch, as shown in FIG. 5, a disconnector 2 is accommodated in a box 1 so that disconnection and connection of the main circuit are performed. The disconnector 2 is opened and closed by fitting the manual handle 4 into the operation port 3 from the outside of the panel and rotating the operation shaft 5. Here, a gear device 6 is provided at an intermediate portion of the operation shaft 5 to convert a turning angle. This is because the angle at which the operation shaft 5 is rotated varies depending on the current capacity and voltage class of the disconnector 2. Generally, by rotating the manual handle 4 once, the operation shaft 5 is rotated within a range of, for example, 30 to 100 degrees to correspond to various disconnectors 2.

JP-A-8-315692 (page 3, FIG. 1)

  In the above conventional switch operating mechanism, although the angle at which the operating shaft 5 is rotated by the gear device 6 is converted, the number of parts is large and the adjustment work of the gear device 6 is difficult. The operation shaft 5 is connected to a movable electrode that constitutes the disconnector 2, and a disconnection state or a connection state is formed depending on the rotation angle. If the adjustment work is insufficient, a connection failure or the like is caused. There is.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a switch operating mechanism that can reliably convert the angle at which the operating shaft rotates with a simple configuration.

  In order to achieve the above object, an operating mechanism of a switch according to the present invention includes a manual handle side operation shaft that is manually rotated, an angle conversion device coupled to the manual handle side operation shaft, and the angle conversion device. And the disconnector-side operation shaft connected to the switch, and the angle conversion device includes one angle conversion plate fixed to the manual handle-side operation shaft, and the one angle conversion plate. Further, the rotation is started after a predetermined angle, and the other angle conversion plate fixed to the disconnector side operation shaft is used.

  ADVANTAGE OF THE INVENTION According to this invention, the angle which a manual handle side operation shaft and a disconnector side operation shaft rotate can be converted with the angle conversion apparatus of a simple structure.

The side view which shows the structure of the angle conversion apparatus of the operating mechanism of the switch concerning Example 1 of this invention. The perspective view which shows the structure of the angle conversion apparatus of the operating mechanism of the switch concerning Example 1 of this invention. The perspective view which shows the structure of the angle conversion apparatus of the operating mechanism of the switch concerning Example 2 of this invention. The perspective view which shows the structure of the angle conversion apparatus of the operating mechanism of the switch concerning Example 3 of this invention. The top view shown in a partial cross section which shows the operation mechanism of the conventional switch.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, an operation mechanism of a switch according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 is a side view showing a configuration of an angle conversion device for an operating mechanism of a switch according to Embodiment 1 of the present invention, and FIG. 2 is an angle conversion device for an operating mechanism of a switch according to Embodiment 1 of the present invention. It is a perspective view which shows a structure. In addition, since the operation mechanism of the switch has the same configuration as that of the conventional method, the description thereof will be omitted, and only the angle conversion device will be described.

  As shown in FIG. 1, a manual handle side operation shaft 10 into which a manual handle (not shown) is fitted and a disconnector side operation shaft 11 connected to a disconnector (not shown) are connected in an axial direction by an angle conversion device 12. The angle conversion device 12 includes a disk-shaped first angle conversion plate 13 fixed to the manual handle side operation shaft 10, and a disk-shaped second angle connected to the first angle conversion plate 13 in the axial direction. The angle conversion plate 14 is connected to the second angle conversion plate 14 in the axial direction, and includes a disk-shaped third angle conversion plate 15 fixed to the disconnector side operation shaft 11.

  As shown in FIG. 2, the first angle conversion plate 13 is provided with a first drive pin 16 on the surface on the side opposite to the manual handle side operation shaft 10, and is provided on the second angle conversion plate 14. It is possible to move in the arc-shaped first rotating groove 17. A first connecting shaft 18 protrudes from the center of the first angle conversion plate 13, and a through hole 19 of the second angle conversion plate 14 is rotatably inserted. A recess 20 is provided at the center of the first connecting shaft 18, and a second connecting shaft 21 provided on the side of the third disconnector-side operation shaft 11 of the third angle conversion plate 15 is rotatably fitted. It is supposed to be.

  The second angle conversion plate 14 is provided with a second drive pin 22 so that the second angle conversion plate 14 can move in an arc-shaped second rotation groove 23 provided in the third angle conversion plate 15. Yes. The third angle conversion plate 15 is provided with a display device 24 that displays the open / close state of the disconnector.

  Next, the operation will be described with reference to FIG.

  When the manual handle side operation shaft 10 is rotated (rotated) clockwise by a manual handle (not shown), the first drive pin 16 moves in the first rotation groove 17 from the point A to the point B in the drawing, And the second angle conversion plate 14 is rotated. Then, the second drive pin 22 moves from the point C to the point D in the second rotation groove 23, stops at the point D, and rotates the third angle conversion plate 15 and the disconnector side operation shaft 11. .

  Thereby, even if the manual handle side operation shaft 10 is rotated once, the second angle conversion plate 14 rotates with a delay from the first angle conversion plate 13, and moreover than the second angle conversion plate 14. The third angle conversion plate 15 rotates with a delay, and as a result, the disconnector side operation shaft 11 rotates only 45 degrees, and the disconnector (not shown) can be changed from the disconnection state to the connection state, for example. The angle at which the disconnector side operation shaft 11 rotates can be easily adjusted by the arcuate lengths of the first rotation groove 17 and the second rotation groove 23.

  That is, the second angle conversion plate 14 is provided with an arc-shaped first rotation groove 17 that can move at a predetermined angle (range), and the first angle conversion plate 13 moves in the first rotation groove 17. The second angle conversion plate 14 can be rotated with a predetermined angle delayed with a simple configuration for fixing the drive pin 16. Since the rotation angle is determined by the length (angle) of the first rotation groove 17, the number of parts is small, and adjustment work is unnecessary. Similarly, the third angle conversion plate 15 can be rotated with a predetermined angle as compared with the second angle conversion plate 14.

  When the disconnector is changed from the connected state to the disconnected state, the manual handle side operation shaft 10 is rotated (rotated) counterclockwise. The disconnector-side operation shaft 11 can be rotated later than the angle at which the manual handle-side operation shaft 10 rotates.

  Even if the third angle conversion plate 15 (the other angle conversion plate) is combined with the first angle conversion plate 13 (the one angle conversion plate), the third angle conversion plate 15 has a predetermined angle. It can be rotated with a delay. That is, the angle conversion device 12 can be composed of two or more angle conversion plates 13, 14, 15.

  According to the switch operating mechanism of the first embodiment, the manual handle side operating shaft 10 and the disconnector side operating shaft 11 are turned to the first angle conversion plate 13 and the second angle rotated later than this. Since it is connected by an angle conversion device 12 comprising a conversion plate 14 and a third angle conversion plate 15 that rotates further behind this, the configuration of angle conversion is simplified, and each operation shaft 10 , 11 can be reliably converted into an angle of rotation.

  Next, a switch operating mechanism according to the second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a perspective view illustrating a configuration of an angle conversion device for an operation mechanism of a switch according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that a portion for operating another electric member is provided on the angle conversion plate. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 3, protrusions 25 and 26 are provided on the outer periphery of the second angle conversion plate 14 and the outer periphery of the third angle conversion plate 15, respectively. Links 27 and 28 are connected to the protrusions 25 and 26, and electric members 29 and 30 such as limit switches are connected.

  Thereby, the second angle conversion plate 14 can display the disconnection, and the third angle conversion plate 15 can display the disconnection completion. The electrical members 29 and 30 are at least one.

  According to the switch operating mechanism of the second embodiment, in addition to the effects of the first embodiment, the angle at which the disconnector-side operation shaft 11 rotates, that is, the state during the opening / closing operation can be displayed.

  Next, a switch operating mechanism according to Embodiment 3 of the present invention will be described with reference to FIG. FIG. 4 is a perspective view showing a configuration of an angle conversion device for an operating mechanism of a switch according to Embodiment 3 of the present invention. The third embodiment differs from the first embodiment in that a portion for operating another electric member is provided on the angle conversion plate. In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, projecting bars 31 and 32 are provided on the outer periphery of the second angle conversion plate 14 and the outer periphery of the third angle conversion plate 15, respectively. The protruding rods 31 and 32 directly operate electric members 29 and 30 such as limit switches. Moreover, the link of Example 2 may be connected and used together.

  According to the switch operating mechanism of the third embodiment, the same effects as those of the second embodiment can be obtained.

DESCRIPTION OF SYMBOLS 1 Box body 2 Disconnector 3 Operation port 4 Manual handle 5 Operation shaft 6 Gear device 10 Manual handle side operation shaft 11 Disconnector side operation shaft 12 Angle conversion device 13 First angle conversion plate 14 Second angle conversion plate 15 Three angle conversion plates 16 First drive pin 17 First rotation groove 18 First connection shaft 19 Through hole 20 Recess 21 Second connection shaft 22 Second drive pin 23 Second rotation groove 24 Display device 25 , 26 Protruding portion 27, 28 Link 29, 30 Electric member 31, 32 Protruding rod

Claims (6)

A manual handle side operation shaft that is rotated manually,
An angle conversion device coupled to the manual handle side operation shaft;
The disconnector-side operation shaft connected to the angle conversion device and connected to the switch,
The angle conversion device includes one angle conversion plate fixed to the manual handle side operation shaft,
The switch is characterized in that it starts to rotate with a predetermined angle behind the one angle conversion plate and is composed of the other angle conversion plate fixed to the disconnector side operation shaft. Operation mechanism. A drive pin is provided on the one angle conversion plate,
The switch operating mechanism according to claim 1, wherein the other angle conversion plate is provided with a rotation groove on which the drive pin can move by a predetermined length.   The switch operating mechanism according to claim 1 or 2, wherein the angle conversion device comprises a plurality of angle conversion plates.   The switch operating mechanism according to any one of claims 1 to 3, wherein a protrusion is provided at least on an outer periphery of the one angle conversion plate, and a link for operating the electric member is connected.   The switch operating mechanism according to any one of claims 1 to 4, wherein a protruding rod is provided on an outer periphery of at least one of the angle conversion plates to operate the electric member.   The switch operating mechanism according to any one of claims 1 to 5, wherein an indication of an open / close state is provided on the other angle conversion plate.

Images