JPH11176292A - Motor operation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make common auxiliary switchgears for interchangeability and lower the cost by installing an auxiliary switchgear in an electromotive operational apparatus capable of opening and closing a main switchgear by electric power and interlockingly carrying out opening and closing operation through an operation lever and a switching lever attached to an output axis of the motor operation apparatus. SOLUTION: A main switchgear is opened or closed by rotating an operation handle (shown by a dotted line) fixed in one end of an output shaft 3 by an electric motor built in this electromotive operational apparatus 1. One end of an operation lever 4 is fastened in the other end of the output axis 3. The other end of the operation leer 4 is joined to the right end of a joining lever 5. The left end of the joining lever 5 is connected with an switch lever 6 of an auxiliary switchgear 2. The installation part 8 of the auxiliary switchgear 2 is fixed in a metal tool 7 and the metal tool 7 is fixed in the electromotive operational apparatus 1 by a screw 1A and installed in an electromotive operational box 1. Consequently, the switch operations of the main switchgear and the auxiliary switchgear are interlocked and common auxiliary switchgears can be made for interchangeability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric actuator having an output shaft for electrically opening and closing a main switch, and more particularly to an electric actuator having an auxiliary switch attached thereto.

[0002]

2. Description of the Related Art An electric operation device transmits the rotation of a built-in electric motor to an operation handle via an output shaft. A main switch is connected to the operation handle to open and close the main switch. The main switch here refers to, for example, a circuit breaker or disconnector that opens and closes a main circuit.

[0003]

However, the conventional electric actuator as described above has a problem that an auxiliary switch which is linked to a main switch is not mounted.
In other words, the auxiliary switch is used to display the open / closed state of the main switch and to control other devices.Conventionally, when the specification for attaching the auxiliary switch is issued, the auxiliary switch is I was attached. Therefore, whenever the model and shape of the main switch are different, an auxiliary switch and a mounting device suitable for the model are prepared. If the auxiliary switch is attached to the electric actuator, the auxiliary switch can be shared and cost can be reduced.

An object of the present invention is to attach an auxiliary switch to the electric operation device side.

[0005]

According to the present invention, in order to achieve the above object, according to the present invention, an electric switch for electrically opening and closing a main switch is provided with an auxiliary switch which is linked with opening and closing of the main switch. You should be able to. As a result, the auxiliary switch can be shared. In this configuration, an operation handle for opening and closing the main switch is fixed to one end of the output shaft driven by the electric motor, and an operation lever is fixed to the other end of the output shaft, and the auxiliary switch is opened and closed by the operation lever. An open / close lever to be operated may be connected. As a result, the output shaft rotates in conjunction with the main switch, so that the open / close lever also rotates, and the auxiliary switch operates in conjunction with the main switch. Regardless of which side of the output shaft the operation handle is provided, the opening / closing lever can be attached to the output shaft opposite to the operation handle.

In such a configuration, a slide pin may be engaged with a drive lever integrated with an output shaft driven by an electric motor, and an open / close lever for operating an auxiliary switch may be connected to the slide pin. Accordingly, the output shaft rotates in conjunction with the main switch, so that the slide pin is moved by the drive lever, and the auxiliary switch is linked with the main switch via the open / close lever. Regardless of which side of the output shaft the operation handle is provided, the open / close lever can be attached regardless of the attachment position of the operation handle.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. FIG. 1 is a front view showing the configuration of the electric actuator according to the embodiment of the present invention. An electric motor (not shown) is housed inside the electric actuator 1, and the electric motor rotates the output shaft 3. An operation handle 2 is fixed to a right end of the output shaft 3, and a left end of the output shaft 3 is
An operation lever 4 linked to the auxiliary switch 2 is fixed.

FIG. 2 is a view taken in the direction of the arrow A in FIG. One end (lower right end) of the operation handle 2 is bolted to the output shaft 3, and the other end (upper left end) is connected to a main switch (not shown). The operation lever 4 indicated by a dotted line is provided on the back side of the case of the electric actuator 1. FIG.
It is an arrow view. One end (lower right end) of the operation lever 4 is bolted to the output shaft 3, and the other end (upper left end) is connected to the right end of the connection lever 5. The left end of the connecting lever 5 is connected to an opening / closing lever 6 that opens and closes the auxiliary switch 2.
The auxiliary switch 2 is mounted on the left side (rear side) of the electric operation device 1 via a mounting bracket 7. Operation handle 2
Is provided on the back side of the case of the electric actuator 1.

FIGS. 4A and 4B are views showing the structure of the mounting bracket 7 shown in FIG. 3, wherein FIG. 4A is a side view and FIG. 4B is a plan view. The mounting member 7 is formed by bending a plate material twice as shown in FIG. FIG. 4A is a view as viewed from the near side of FIG. 3, and the screw 1 shown in FIG.
A is screwed to the side of the case of the electric actuator 1 by passing A through. The hole 7B is a hole for attaching the auxiliary switch 2.

FIGS. 5A and 5B are views showing the configuration of the auxiliary switch 2 of FIG. 3, wherein FIG. 5A is a side view and FIG. 5B is a plan view. A U-shaped attachment portion 8 is attached to the auxiliary switch 2, and an opening / closing lever 6 is provided at the center. FIG. 5A is a view seen from the back side of FIG.
The mounting bracket 7 and the auxiliary switch 2 are fixed by passing a screw (not shown) through the threaded hole 8A of the mounting bracket 7 through a hole 7B (FIG. 4) of the mounting bracket 7.

Returning to FIG. 3, when the output shaft 3 is rotated clockwise by an electric motor (not shown) inside the electric operation device 1, the operation lever 4 and the operation handle 2 on the rear side (dotted line) are provided.
Rotate clockwise. Since the operating lever 4 pulls the connecting lever 5 rightward, the opening / closing lever 6 reaches the position indicated by the dotted line 6A, and the auxiliary switch 2 operates. On the other hand, since the operation handle 2 also rotates, the main switch (not shown) also operates. Therefore, the auxiliary switch 2 is linked with the main switch. Four screw holes are similarly formed on both end faces of the output shaft 3. For this purpose, the operation handle 2 can be attached to the near side in FIG. In such a case, the auxiliary switch 2 can be attached to the left side of the electric operation device 1 in the same manner as in FIG. 3 by screwing the operation lever 4 to the end surface on the back surface side of the output shaft 3.

FIG. 6 is a side view showing the structure of an electric actuator according to another embodiment of the present invention, and is a side view corresponding to FIG. The operation handle 2 is fixed to the rear end surface of the output shaft 3, and nothing is attached to the front end surface of the output shaft 3. A slide pin 9 protrudes outside from an arc-shaped slide hole 10 formed in a case of the electric actuator 1. The right end of the connection lever 5 is connected to the slide pin 9. The left end of the connecting lever 5 is connected to the opening / closing lever 6 of the auxiliary switch 2. Auxiliary switch 2
Is mounted on the left side of the electric operating device 1 by a mounting portion 8 and a mounting bracket 7 having exactly the same configuration as in FIGS. 5 and 4.

FIG. 7 is a side view showing the internal structure of the electric operating device 1 of FIG. 6, and is a view of the inside of the electric operating device 1 with the case covering the electric operating device 1 removed. A cam 12 is fixed to a rotating shaft 11 of an electric motor (not shown).
3 are protruded. On the other hand, the drive lever 15
Are fixed integrally, and the lower right end of the drive lever 15 is V
A notch 15A is formed in a letter shape. Operation lever-1
4 are arranged horizontally, and a slide pin 9 is set upright on the left side of the operation lever 14 in FIG. 7 to engage with the notch 15A. On the other hand, on the right side of the operation lever 14, a notch portion 14A cut out in a V-shape is formed. The notch 14A is engaged with the pin 13. Slide hole 10
Is also revealed in the case on the back side of the electric actuator 1. The ends of the slide pins 9 penetrate the slide holes 10 and protrude from both sides of the case of the electric actuator 1 to the outside. 6 and FIG. 7 are the same as those in FIG. 1 to FIG. 5, and the same parts are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 7, when the rotating shaft 11 is rotated clockwise by an electric motor (not shown) in the electric operating device 1, the pin 13 pushes the operation lever 14 to the left. Turns the drive lever 15 clockwise. Accordingly, the output shaft 3 rotates clockwise, so that the operation lever 2 in FIG. 7 rotates clockwise, and the main switch (not shown) opens and closes. On the other hand, the slide pin 9
Moves along the slide hole 10 to the position of the dotted line 9A.

Returning to FIG. 6, when the slide pin 9 moves to the position 9A, the connecting lever 5 pushes the opening / closing lever 6 to the left, so that the operating lever 6 reaches the position indicated by the dotted line 6A and the auxiliary switch 2 Works. Therefore, the auxiliary switch 2 is interlocked with the main switch. As described above, the slide pins 9 protrude from both sides of the case of the electric actuator 1. For this purpose, the connecting lever 5 may be connected to either end of the slide pin 9. Therefore, in the configuration of FIG. 6, it does not matter which side of the output shaft 3 the operation handle 2 is attached to. Auxiliary switch 2 is electrically operated
Can be attached to either the back side or the front side on the left side of the.

In the configuration shown in FIG. 6, the slide pin 9 may be protruded from only one side of the case of the electric actuator 1. 1 and 6, the auxiliary switch 2 is mounted outside the case of the electric actuator 1, but the auxiliary switch 2 is provided inside the case of the electric controller 1. Is also good.

[0017]

As described above, the present invention provides a motorized operating device for electrically opening and closing a main switch, which is provided with an auxiliary switch interlocked with the opening and closing of the main switch. And cost is reduced.
In such a configuration, an operation handle for opening and closing the main switch is fixed to one end of the output shaft driven by the electric motor, and an operation lever is fixed to the other end of the output shaft,
An open / close lever that opens and closes the auxiliary switch is connected to this control lever, so that the open / close lever can be easily attached to the opposite end of the output shaft, regardless of which side of the output shaft the control handle is provided with. It can be done at a low cost because it does not require significant processing.

In this configuration, a slide pin is engaged with a drive lever integrated with an output shaft driven by an electric motor, and an open / close lever for opening / closing an auxiliary switch is connected to the slide pin, whereby an operation handle is provided. Regardless of which side of the output shaft is provided, the open / close lever can be easily attached irrespective of the position of the operation handle, and there is no need for significant processing, so that the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing the configuration of an electric actuator according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a view taken in the direction of arrow B in FIG. 1;

FIG. 4 is a view showing a configuration of a mounting bracket of FIG. 3;
(A) is a side view, (B) is a plan view

FIG. 5 is a diagram showing a configuration of an auxiliary switch of FIG. 3,
(A) is a side view, (B) is a plan view

FIG. 6 is a side view showing a configuration of an electric actuator according to another embodiment of the present invention.

FIG. 7 is a side view showing the internal configuration of the electric actuator of FIG. 6;

[Explanation of symbols]

1: Electric actuator, 2: Operation handle, 3: Output shaft, 4:
Operation lever, 5: connection lever, 6: open / close lever, 9: slide pin, 10: slide hole, 11: rotary shaft, 12:
Cam, 13: pin, 15: drive lever, 14: operation lever, 15: drive lever

Claims (3)

[Claims] 1. An electric operating device for electrically opening and closing a main switch, wherein an auxiliary switch is mounted in conjunction with opening and closing of the main switch. 2. An electric operation device according to claim 1, wherein an operation handle for opening and closing the main switch is fixed to one end of an output shaft driven by the electric motor, and an operation lever is provided at the other end of the output shaft. An electric operating device, wherein the operating lever is fixed, and an opening / closing lever for opening and closing the auxiliary switch is connected to the operating lever. 3. The electric actuator according to claim 1, wherein a slide pin is engaged with a drive lever integral with an output shaft driven by the motor, and the slide pin has an opening / closing lever for opening / closing an auxiliary switch. An electric actuator characterized by being connected.