Transmission device and switchgear using the transmission device
A transmission device and transmission rod technology, which is applied in the field of switchgear and transmission devices, can solve the problems of large moving contact friction, seriousness, and generation of metal foreign objects, and achieve the effects of reducing friction, reducing metal foreign objects, and avoiding metal foreign objects
Active Publication Date: 2018-03-27
HENAN PINGGAO ELECTRIC +2
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Problems solved by technology
[0003] The purpose of the present invention is to provide a solution in the prior art that due to the force on the moving contact along the direction of the swing arm, the force component perpendicular to the moving direction of the moving contact is relatively large, so that the friction of the moving contact is relatively serious. Transmission device that produces the problem of metal foreign matter; meanwhile, the object of the present invention is also to provide a switchgear using the transmission device
Method used
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Embodiment Construction
[0019] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. A specific embodiment of a switchgear of the present invention, such as Figure 1 to Figure 3 As shown, it includes a switchgear casing 1, a static contact 2 arranged inside the switchgear casing 1, and a transmission device 3 arranged on the switchgear casing 1 for opening and closing with the static contact. The transmission device 3 includes a housing , the main shaft 9 with the axis extending in the front and rear directions, the transmission rod with the axis extending in the left and right directions, the movable contact 12 installed on the transmission rod, the swing arm 10, the reversing force transmission lever 11, the slideway 14 and the The roller 15 that is arranged on the inside of the slideway 14 and guides and slides up and down with the slideway 14, the swing arm 10 and the reversing power transmission lever constitute the transmission part...
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The invention relates to a transmission device and switch equipment employing the same. The transmission device comprises a main shaft, a transmission rod, a transmission component and a guide structure, wherein the transmission component is arranged between the main shaft and the transmission rod and is used for driving the transmission rod to move; the transmission component comprises a swing arm and a reversing force transfer lever; the swing arm is hinged with the main shaft; the reversing force transfer lever is hinged with the swing arm; one end of the reversing force transfer lever is hinged with the transmission rod and the other end is hinged with a guide part; the guide structure and the guide part are guided up and down for movable cooperation; and when the main shaft drives the swing arm to swing, the reversing force transfer lever pulls the transmission rod to move. Due to the cooperative relationship between the guide part and the guide structure, the stress direction of the transmission rod does not change along the length direction of the reversing force transfer lever, and one part of acting force of the reversing force transfer lever on the transmission rod is undertook by the guide part and the guide structure. Therefore, the component force in the motion direction vertical to the transmission rod is reduced, namely the friction force on the transmission rod is reduced; and metal foreign matters are reduced.
Description
technical field [0001] The invention relates to a transmission device and a switchgear using the transmission device. Background technique [0002] At present, the transmission devices of switches in high-voltage switchgear are mostly mechanical transmissions. For example, the Chinese invention patent application with the application publication number of CN105428133 A discloses a grounding switch, which includes a moving contact and a static contact. The moving contact is provided with Slider, one side of the slider is equipped with a crank, that is, a swing arm, and the crank is hinged with the slider to form a transmission part. The crank is provided with a control shaft, that is, a main shaft. Vibration absorber and sliding sleeve, the sliding sleeve and the movable contact are slidingly connected, the vibration absorber is fixedly connected with the housing, the vibration absorber and the sliding sleeve form a guiding part to ensure that the moving contact can guide up ...
Claims
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IPC IPC(8): H01H31/02H01H31/00
CPCH01H31/003H01H31/026
Inventor 庞庆平董军利王保刚赵芳芳卢鹏李健张建周王丽娟刘佳春汪陆张海涛王志彪付佳佳
Owner HENAN PINGGAO ELECTRIC