A three-position actuator
An actuator, three-position technology, applied in the field of three-position actuators, can solve the problems of inconsistent action of the isolation switch, potential safety hazards, left and right swinging of the connecting rod, etc.
Active Publication Date: 2016-05-11
宁波优维电力科技有限公司
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Problems solved by technology
[0006] For the three-position actuator with this structure, since the upper end of the connecting rod is only stuck in the cam chute through the shaft pin, and the lower end of the connecting rod is connected with multiple isolation switches, when the connecting rod moves up and down linearly with the cam, the connecting rod It is easy to swing left and right, so that the actions of each isolating switch are inconsistent, causing potential safety hazards
Method used
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[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] Please see Figure 5-Figure 8 , Figure 5 It is a schematic top view structural diagram of the three-position actuator provided by the present invention; Image 6 for Figure 5 Schematic diagram of the sectional structure in the middle B-B direction; Figure 7 for Figure 5 Schematic diagram of the structure when the middle link is in the middle position; Figure 8 for Figure 5 Schematic diagram of the structure when the middle link is in the lower position.
[0029] Such as Figure 5-Figure 8 As shown, the three-position actuator provided by the present invention includes a connecting shaft 60 , a cam 61 , a connecting rod 62 , a slider 9 and a slide groove 8 .
[0030] Described cam 61 is provided with c...
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The invention relates to the technical field of solid insulation ring main units, and discloses a three-position execution mechanism. The three-position execution mechanism comprises a connecting shaft, a cam and a connecting rod, the connecting shaft is connected with the rotary center of the cam, two ends of the connecting shaft are supported on a rack, the upper end of the connecting rod is connected inside the cam groove of the cam through a shaft pin, not less than two guiding round pins are arranged on the connecting rod, not less than two guide sliding grooves are arranged in the rack, extending direction of each guide sliding groove is identical to the motion direction of the connecting rod, and the guide round pin stretches into the guide sliding groove. The two guide sliding grooves are capable of limiting the connecting rod in the left direction and the in the right direction when operations on disconnecting switches are needed, the connecting rod is enabled to drive the guide round pins to slide along a line inside the guide sliding grooves only, and therefore the connecting rod is prevented from swinging in the left direction and in the right direction, consistency of each disconnecting switches is ensured, and safety hazard is reduced.
Description
technical field [0001] The invention relates to the technical field of solid insulation ring network cabinets, in particular to a three-position actuator. Background technique [0002] At present, the solid insulated ring network cabinet is gradually developing in the direction of miniaturization, compounding, and intelligence. The isolating switch and the grounding switch are combined into a three-position isolating-grounding switch. In order to reduce the volume, the isolating switch adopts a three-position vacuum The switching contacts of the arc chamber and the three-position vacuum interrupter are operated in three positions of closing, opening and grounding through the three-position switch operating mechanism. [0003] Please see Figure 1-Figure 4 , figure 1 It is a schematic diagram of the main structure of a typical three-position switch operating mechanism; figure 2 for figure 1 Schematic diagram of the structure of the operating mechanism; image 3 for f...
Claims
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IPC IPC(8): H01H3/42H01H3/46
Inventor 刘晓颖刘坚钢吴德祥何耀明许文枫朱金东戴守祥符吉祥
Owner 宁波优维电力科技有限公司