Transmission mechanism for valve of switch cabinet

Abstract

The invention discloses a transmission mechanism for a valve of a switch cabinet. The transmission mechanism comprises a transmission shaft, a valve connecting rod, a transmission pressure plate, a roller, a bearing I, a bearing II, a bearing fixing plate I, a bearing baffle I, a bearing baffle II and a bearing fixing plate II, wherein the valve connecting rod is fixed at one end of the transmission shaft; the transmission pressure plate is fixed at the other end of the transmission shaft; the roller is fixed at the other end of the transmission pressure plate; the bearing I and the bearing II are respectively sleeved on the transmission shaft; the bearing fixing plate I and the bearing baffle I are respectively fixed at the left and right sides of the side wall of a cabinet body; the bearing baffle II and the bearing fixing plate II are respectively fixed at the left and right sides of a handcart guide rail; and the transmission shaft sequentially passes through the bearing baffle II, the handcart guide rail, the bearing fixing plate II, the bearing fixing plate I, the side wall of the cabinet body and the bearing baffle I. The transmission mechanism has the characteristics that the transmission mechanism is convenient to install, is firmly fixed, has high structure strength and a good transmission performance, and the like.

Description

technical field [0001] The invention relates to a mechanism for driving a switch cabinet valve. Background technique [0002] The drive mechanism of the switch cabinet valve is specially designed for the center-mounted handcart valve. The principle is that under the action of the valve drive chute of the handcart, the transmission mechanism converts this action into the driving force of the valve mechanism, and produces an effective opening and closing displacement for the valve mechanism. [0003] The existing transmission mechanism has the following problems: [0004] 1. The handcart stroke of the center-mounted circuit breaker is small, the valve drive is an arc-shaped chute, and the effective displacement is small; it is difficult for the conventional valve transmission mechanism to amplify the variable to the degree of opening and closing the valve, and the transmission error is relatively large. [0005] 2. The distance between the contact arm of the handcart and the...

AI Technical Summary

Problems solved by technology

[0004] 1. The handcart stroke of the center-mounted circuit breaker is small, the valve drive is an arc-shaped chute, and the effective displacement is small; it is difficult for the conventional valve transmission mechanism to amplify the variable to the degree of opening and closing the valve, and the transmission error is large

[0005] 2. The distance between the contact arm of the handcart and the contact box of the center-mounted circuit breaker is small, and the valve transmission mechanism is required to provide sufficient displacement to make the valve respond when the handcart makes a small displacement. Otherwise, the contact arm of the handcart and the contact box will appear. The collision of the valve panels will cause the deformation of the valve panels and pose a safety hazard

[0006] 3. The conventional transmission mechanism is only fixed to one side of the side wall of the cabinet body. The transmission mechanism is prone to deformation when it is stressed, which reduces the effective transmission displacement of the transmission mechanism, resulting in the valve not being able to open or close smoothly.

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