KR870000267Y1 - Power board - Google Patents

Abstract

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Description

Drawer for vacuum breaker

Figure 1 (a) is a front view showing the whole of the present invention.

1 (b) is an ipsilateral side view.

2 is a cross-sectional view taken along the line A-A which is the main part of the present invention.

Figure 3 is a cross-sectional view of the main portion of the present invention in manual.

Figure 4 is a sectional view of the main part at the time of vibration of the present invention.

5 is a front view showing a conventional vacuum circuit breaker.

* Explanation of symbols for main parts of the drawings

(1): VCB body (2): spring

(3): central axis (4): rotating plate bundle

(5): shutter (6): connecting rod

(7): wheel (8): push rod

(9): Handle shaft (10): Spring pin

(11): spring 12: spring pin

(13): clutch 14: worm gear

(15): Heli Curl Gears (16): Breakaway Bars

(17): spring.

The present invention relates to a drawer for a vacuum breaker to facilitate the extraction and insertion by using the push rod (8) at the time of electric and manual withdrawal and insertion for connecting or disconnecting the vacuum breaker to the switchboard.

In the conventional disk-operated vacuum circuit breaker (for unmanned substations, etc.), electric and manual take-out devices are connected to the same central axis (3), and in the case of electric operation, the gears (A) (B) (C) ( The rotation force is transmitted to the clutch 13 through D) to rotate the worm gear 14 and the helical gear 15 is rotated by the rotation force so that the rotation plate bundle 4 can be rotated on both sides starting from the center of the helical gear 15. Is fixed to the spring pin 12 so that it is complicated to operate due to the relationship between the rotational force ratio of the gears A, B, C, D, and the motor connected to the central shaft 3 when drawing out and inserting. There were many problems.

The present invention devises to make it convenient to connect and disconnect to the switchboard by simplifying the operation during manual operation by separating the central axis (3) and the gear (A) of the vibration operation unit side during manual operation in order to solve such defects. When described in detail the configuration and effect by the accompanying drawings as follows.

The present invention moves the connecting rod 6 to the contact position of the switchboard in order to connect and use the vacuum breaker to the switchboard, and rolls the wheel 7 by using the wheel 7 attached to the lower part of the vacuum breaker body 1. To do so, push the turntables (4) on both sides into the grooves installed on the switchboard, open the shutter (5), and insert the handle shaft (9) into the central shaft (3). At the same time as (8) is pushed inward, the spring pin 10 is released from the gear (A).

At this time, if the gear (A) and the spring pin (10) to prevent the movement of the gear (A) with the gear departure prevention rod 16 to prevent the movement together, the central axis (3) and the gear (A) is separated When the handle shaft 9 is rotated manually, the rotational force is directly transmitted to the clutch 13 so that the worm gear 14 rotates, and the helical gear 15 rotates by the rotational force, thereby rotating the helical gear 15. Rotating plate bundles 4 fixed to both spring pins 12 are rotated.

Therefore, the rotary plate bundle 4 is inserted into the groove portions installed at the left and right sides of the switchboard, so that the rotary plate bundle 4 rotates by a predetermined distance of the groove portion, and the rotary plate bundle 4 is brought into contact with the end of the groove. ) Stops rotation and the wheel (7) is rolled by the length of the groove portion.

At this time, the clutch 13 rotated in engagement with each other, the clutch 13 is dropped from the engagement portion by the stop of the rotating plate bundle 4, the worm gear 14 and the helical gear 15 to stop the rotation.

In addition, when the operation is to be switched from manual to electric, the handle 9 is removed from the central shaft 3, and the shutter 5 is closed by the elasticity of the spring 2 and the spring is installed on the central shaft 3. By the elasticity of (11), the Nurum rod (8) and the spring pin (10) is pushed toward the gear (A).

Therefore, when the motor rotates, the spring pin 10 enters the groove on the side of the gear A, and the central shaft 3 is driven like the gear A, so that the gears B, C and D ) Rotates as well, so that the central shaft 3 rotates like the gear A, and this rotational force is transmitted to the clutch 13, so that the worm gear 14 and the helical gear 15 rotate, and the helical gear rotates. Rotating plate bundles (4) fixed to both spring pins (12) around the (15) to roll the wheel (7) while rotating.

In this way, the motor gears (A), (B), (C) and (D), which are transmitted by electric power during manual operation during operation, are separated from each other, and gears (A) (B) (C) (D) during manual operation. It does not transmit the force by the frictional force of the motor at all, and the handle shaft operation has the effect that the extraction and insertion is easy.

Claims (1)

As shown in the figure, a groove is formed in the central axis 3 during manual operation, and a spring 11 and a push rod 8, a spring pin 10 are installed therein, and a push rod 8 with a spring pin 10. And the central shaft (3) by connecting the gear (A) and the push rod (8) and the central shaft (3) gear (A) to rotate together by the force of the spring (11) during transmission, the handle (9) ) Withdrawal device for vacuum circuit breaker, characterized in that the operation is made to separate the gear (A) and the central axis (3) by the push rod (8) at the same time.