JPH0374019A - Power-equipment switchgear - Google Patents

Abstract

PURPOSE:To lessen the number of replacement parts required when such a modification as to have an electromotive spring type or an electromotive type is made to a power-equipment switchgear by rotatably installing an energy storing lever and an electrode operating lever at one-end part of a rotary seal shaft case and the other-end part therof respectively. CONSTITUTION:An energy storing lever 5 is rotatably installed at oneend part of a rotary seal shaft case while an electrode operating lever 10 is rotatably installed at the other-end part of this case. Then, an operating spring lever 7 or a densely connectable connecting cam 31 and an electrode operating cam 11 or a densely connectable connecting cam 32 are used respectively for interconnecting members positioned between one-end part common to both the energy storing lever 5 and a rotary seal shaft 6 and the other-end part common to both the electrode operating lever 10 and the rotary seal shaft 6. This process can lessen the number of replacement parts required when a power-equipment switchgear is made to be of an electromotive spring type or an electromotive type.

Description

[Detailed description of the invention] A. Industrial application field The present invention relates to a switchgear for power equipment.

B0 Summary of the Invention The present invention provides a switchgear for power equipment in which the operation shaft between the energy storage lever and the electrode operation lever is a rotary seal shaft having a rotary seal shaft case, and the energy storage is provided at one end of the rotary seal shaft case. A lever for operating the electrode is rotatably provided at the other end of the case, and a lever for operating the electrode is rotatably provided at the other end of the case. The connecting member between the other ends of the shaft can be an electric spring type or an electric type by using a lever for an operating spring, a connecting cam that can be tightly connected, and an electrode operating cam or a connecting cam that can be tightly connected. This is how it was done.

C1 Prior Art Conventionally, as shown in FIG. 5, a switchgear for electric power equipment includes a motor 21, a reducer 22, a lever 23, a link 24, a power storage lever 25, a power storage shaft 26, a clutch 27, and an operation. The operating spring lever 29 is rotated via the shaft 29 to store the operating spring 30, and when the illustrated dead point position is passed, the operating spring lever 29 is released to the closing or tripping position. This rotation is caused by the operation shaft 28, clutch 31. The speed is adjusted by the speed regulator 34 via the operating shaft 32 and lever 33, and the rotary seal shaft 37 passing through the SFe gas filled case 46 is rotated by the link 35 and lever 36, and the lever 38, link 39, and insulating lever are rotated. 40 is rotated to drive the sleeve 41 of the movable contact 43 for closing or tripping. In the figure, 42 indicates a Bazhahr cylinder, and 44.45 indicates a fixed contact.

D. Problems to be Solved by the Invention If such an electric spring-type switchgear for power equipment is to be an electric type that does not require rapid closing or tripping, the lever, operating shaft, etc. must be replaced. A large number of parts are required, making it difficult to standardize parts.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and its purpose is to reduce the number of replacement parts when a power switchgear is of an electric spring type or an electric type. An object of the present invention is to provide a power switchgear in which the amount of noise is reduced.

81 Means for Solving the Problems In order to achieve the above object, the switchgear for power equipment according to the present invention uses a rotary seal shaft having a rotary seal shaft case as the operating shaft between the energy storage lever and the electrode operating lever, A power storage lever is rotatably provided at one end of the rotary seal shaft case, and an electrode operating lever is rotatably provided at the other end of the case, and the power storage lever and one end of the rotary seal shaft are rotatably provided. and the connecting member between the electrode operating lever and the other end of the rotary seal shaft is an operating spring lever, a connecting cam that can be tightly connected, and an electrode operating cam or a connecting cam that can be tightly connected, It can be of electric spring type or electric type.

Since the F0 operation rotary seal shaft case is rotatably provided with an energy storage lever and an electrode operation lever at one end and the other end, respectively,
The coupling members between the energy storage lever and the electrode operation lever and one end and the other end of the rotary seal shaft are respectively connected to an operation spring lever, a connection cam that can be tightly connected, an electrode operation cam, or a connection cam that can be tightly connected. By simply changing the switch, the switchgear for power equipment can be changed to an electric spring type or an electric type.

G. Example Examples will be described with reference to the drawings.

1 and 2 show a switchgear for power equipment in the case of an electric spring type, and FIGS. 3 and 4 show a switchgear for power equipment in the case of an electric type.

In Figs. 1 and 2, ■ is a motor, 2 is a gear device rotated by motor l, 3 is a screw grooved power storage drive shaft that rotates integrally with the output gear 2n, and 4 is driven by the rotation of the drive shaft. A drive nut that moves in the axial direction; 5 is a power storage lever that is rotated by the nut 4; 6 is an SF; a rotary seal shaft that passes through the gas-filled case 16; 7 is an air-side end of the rotary seal shaft 6; Fixed by a spline or key, the side protrusion 5 of the energy storage lever 5. When the engaging end 7' or 7" engages the engaging end 5I' or 5I" of the projection 5, the engaging end 51" and 7' between or 5I
A play gap a is created between ' and 7'.

8 is a dead point operating spring connected to the operating spring lever 7; 9 is a speed regulator provided within the operating spring; I;
0 is a cam for an electrode operating lever fixed by a spline or key to the S P n gas middle side end of the rotary seal shaft 6, and 11 is an electrode operating lever that is rotated by a cam IO engaged with a side protrusion 11°. When the engaging end 10' or 10" of the cam 10 engages the engaging end 11' or 11" of the protrusion 11 with the lever for the Allows for play gaps.

12 is a connection link between the electrode operating lever 11 and the movable contact 13, 14.15 is a fixed contact, 17 is a rotary seal shaft case that seals between the case 16 and the rotary seal shaft 6, 18 is a bearing, and 19.19 is a It is a stopper.

Thus, the operating spring lever 7 and the electrode operating lever cam lO are configured to move together by the rotary seal shaft. The electrode operating lever 11 is arranged inside the rotary seal shaft case 17 and is separated from the cam lO and the rotary seal shaft 6. The energy storage lever 5 is arranged outside the rotary seal shaft case, and the operating spring lever 7 and the rotary seal shaft 6 are completely separated. The energy storage lever 5 is moved by the gear device 2 and the drive shaft 3 using energy stored from the motor I, and the operating spring is positioned at a dead point near the end of the movement of the energy storage lever 5.

Further, after the operating spring 8 exceeds the dead point and is released, the energy storage lever 5 separately detects this and mechanically and electrically disconnects the transmission from the motor 1.

The engaging end 10' of the operating cam IO does not come into contact with the engaging end 11' of the electrode operating lever 11 until the operating lever 7 is pushed by the energy storage lever 5 and the operating spring 8 reaches the dead point. Therefore, the electrode operating lever 11 does not move. When the dead point is exceeded, the engaging end 10' comes into contact with 11', and the electrode operating lever 11 is rapidly released by releasing the operating spring 8.
rotates to rapidly pull the movable contact 13 away from the fixed contact 15, and the stopper 19. It is designed to stop when it hits.

In FIGS. 3 and 4, if the electric type is used, remove the operating spring 8 and speed regulator 9 from the electric spring type shown in FIGS. 1 and 2, and operate the operating spring lever 7 and the electrode. The lever cam 10 is connected to the engaging end 5 of the energy storage lever. '
,5. Connecting cam 31 having engaging ends 3F, 31'' that match `` and engaging ends 11', 11 of electrode operating lever 11''
a connecting cam 3 having engaging ends 32', 32'' adapted to
Change to 2.

Therefore, the operating force from the motor 1 is applied to the gear device 2, the energy storage drive shaft 3. Drive nut, lever 5. Connecting cam 312 rotating seal shaft 6. SF directly via the connecting cam 32
, etc., by driving the electrode operating lever 11 in the gas, and the movable contact can be closed or tripped via the connecting link.

That is, by simply preparing the connecting cams 31 and 32, it is possible to make the electric spring-type opening/closing device for power equipment electric.

H1 Effects of the Invention Since the present invention is constructed as described above, the operation spring and speed regulator of the electric spring type are removed, and the operation spring arm and the electrode operation lever cam are replaced with the energy storage lever and the electrode operation lever, respectively. Since it can be made electric by simply replacing it with a connecting cam that is compatible with the operating lever, there is no need to make replacement energy storage levers, electrode operating levers, or operating shafts, and parts can be standardized. , it is easy to assemble, and there is no need to prepare many parts.

[Brief explanation of drawings]

Figures 1 to 4 show embodiments of the present invention; Figure 1 (A) is a configuration diagram showing an electric spring type power equipment switching device in a closed state; Figures 1 (B) and 4 (C) is an operation explanatory diagram showing the dead point position and tripping state, Fig. 2 (A)
is a side view showing a partial cross section of the operating shaft part, (B),
(C) is a side view of the same side, Figure 3 (B) is a configuration diagram showing the switchgear for electric power equipment in the closed state, and Figures (B) and (C) show its dead point position and tripped state. Diagrams for explaining the operation. Fig. 4 (A) is a side view partially showing the operation shaft section, Fig. 4 (B) and (C) are side views of the same, and Fig. 5 is the configuration of a conventional switchgear for power equipment. It is an explanatory diagram. Figure 1 Figure 1 2 people outside Figure 2 Figure 2 18 - - Bearing Figure 2 Figure 3 (A) 1 Figure 3 (B) Figure 3 (C) 2 31.32 ---- One leak Possession power A Figure 4 (A) Procedural amendment (method)

Claims (1)

[Claims] (1) The operating shaft between the energy storage lever and the electrode operation lever is a rotary seal shaft having a rotary seal shaft case, and the energy storage lever is rotatably provided at one end of the rotary seal shaft case. An electrode operating lever is rotatably provided at the other end, and a connecting member between the energy storage lever and one end of the rotary seal shaft and the electrode operating lever and the other end of the rotary seal shaft is operated. An opening/closing device for electric power equipment, characterized in that it can be made into an electric spring type or an electric type by using a spring lever or a connecting cam that can be tightly connected, and an electrode operation cam or a connecting cam that can be tightly connected. Device.