【技术】一分钟带你了解摇杆开关
摇杆开关是被人们广泛使用的开关设备,传统储物柜开关的电路转换大多使用翘板原理。通常包括底座1a、跷跷板2a、操纵杆3a和底座1a底部的三个终端。中间终端支撑跷跷板2a,通过摆动摇臂3a移动跷跷板2a,用于将跷跷板2a的移动触点与两侧端子的静态触点连接起来。
摇杆开关操作方便,但是开关的跷板2a和储物柜3a需要的活动空间很大,底座1a的内腔需要安装得更深,所以开关组装不方便。电路切换由摇臂3a驱动跷跷板2a旋转,而跷跷板2a只有中间终端支撑,可以轻松移动跷跷板2a,因此跷跷板2a的移动触点与两端的静态接触不太好,从而降低开关的可靠性。电源电机通常使用接触器来控制电路控制。使用“控制,反向控制”按钮控制接触器线圈的容量。目前,其他操纵杆关闭(部分按钮操纵杆关闭内)可以通过接触器控制4-5.5千瓦以上。摇臂十字型摇杆开关控制两种信号设计。左右通道前不要用其他通道控制2路电动机的运行。关键是根据控制要求,使用适当的辅助设备组对电路进行适当的控制。
所谓的摇杆开关指的是其具有前后左右四个方向摆动时,可以实现四向复位或者自锁,在电机等机械控制领域应用极为广泛;现有技术中的十字摇杆开关一般具有十字摇柄,设置在十字摇柄下方了定位装置,该定位装置下方设置有按钮开关,所述定位装置上轴向穿设有连动杆,当十字摇柄以十字形方向摆动时,可分别与定位装置上的连动杆形成联动,然后连动杆在轴向运动过程中,触动按压开关上的按压钮动作,进行实现按压开关的接通或者断开动作;然而,现有技术中的这种结构,由于十字摇斌与连动杆之间采用的是间歇性联动,即十字摇柄只在摆动的某一瞬时,与连动杆以触碰的方式联动,此时的连动杆顺势轴向移动与按压开关上的按压钮联动,带动按压开关动作,由于这整个联动过程中,连动杆与按压钮之间的瞬时联动过于突兀,并且由于十字摇杆开关的结构限制,连动杆较为细长。
因此,在实操过程中,主要产生以下两方面的缺陷:1、动作不够可靠稳定;2、连动杆容易断裂;3、本实用新型便是基于上述缺陷进行的相应的改进。
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