Sequential drive mechanism and switchgear using the same

Abstract

The invention relates to an orderly driving mechanism and a switch cabinet using the same. The orderly driving mechanism comprises a driving intermittent gear and more than two driven gears, wherein the driving intermittent gear is used for being in transmission connection with a power input device, and the driven gears correspond to the intermittent gear; a gear transmission segment and a no-load segment are arranged on the peripheral surface of the driving intermittent gear, the gear transmission segment is used for being in transmission connection with the corresponding driven gear, and the no-load segment is used for removing transmission connection with the corresponding driven gear; one gear transmission segment and one no-load segment are arranged in a circumferential direction, or more than two gear transmission segments and more than two no-load segments are alternately arranged in the circumferential direction. When the driving intermittent gear rotates, the gear transmission segment and the no-load segment of the driving intermittent gear can be in transmission connection with the corresponding driven gears successively, therefore, the driven gears can be driven according to the set driving order, and the corresponding driving requirements can be realized. By adopting gear transmission, the orderly driving mechanism is simple in structure and high in reliability.

Description

technical field [0001] The invention relates to a sequential driving mechanism and a switchgear using the sequential driving mechanism. Background technique [0002] According to safety protection requirements, during the closing process of the isolating switch, the valve should be driven first to move from the closed state to the fully open state, and then the isolation contact should be driven to complete the closing operation; during the opening process of the isolating switch , contrary to the above process, it is necessary to move the isolation contact first to separate the dynamic and static contacts, and then close the valve. Therefore, the valve and the isolating switch need to act in sequence, and the corresponding drive mechanism needs to have two sequential motion outputs. [0003] At present, most of the air-insulated removable metal-enclosed switchgear at home and abroad are arranged horizontally, that is, arranged along the width direction. The typical product...

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Problems solved by technology

[0004] However, for the switchgear where the circuit breaker trolley is fixed after being pushed in place, and the opening and closing of the isolating switch is realized only by the movement of the isolating movable contact itself, the four-bar mechanism will not be able to drive the valve action after the trolley moves in place, especially for three For the removable switchgear arranged longitudinally, since the three phases are arranged along the depth direction of the switchgear, the isolating contact moves up and down to realize the opening and closing functions of the isolating switch, and the telescopic valve moves back and forth to realize the protection of the high-voltage primary live part. Separated and shielded, it is significantly different from the traditional removable switch cabinet arrangement and the action of the isolating switch and the valve. The existing mechanism cannot be applied. Therefore, a new method that can realize the successive actions of the isolating contact and the valve is needed. Drive mechanism

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