| 摘要 |
<p>The present invention relates to a spring operation device for a circuit breaker. In the present invention, a first rotary shaft (18) with a closed spring (20) installed thereon and a second rotary shaft (22) with an open spring (24) installed thereon are concentrically arranged. The first rotary shaft (18) and the second rotary shaft (22) are interconnected by a planetary gear unit (26), and the power transmission in the planetary gear unit (26) is operated by a clutch unit (42). A latch (46) of the clutch unit (42) couples or decouples a sun gear (28) and ring gear (34) of the planetary gear unit (26) so as to transmit power or prevent power transmission between the first rotary shaft (18) and the second rotary shaft (22). The state where the closed spring (20) and the open spring (24) are compressed is maintained by a closed latch mechanism (21) and an open latch mechanism (25), respectively. According to the present invention, the first rotary shaft (18) with the closed spring (20) installed thereon and the second rotary shaft (22) with the open spring (24) installed thereon are concentrically arranged, thus minimizing the overall size of the spring operation device and improving operating reliability.</p> |
