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一般止逆机构多采用棘轮机构,但棘轮止逆机构如用在水平面上,则为了可靠止逆,必须用弹簧把棘爪压在棘轮上,这样就在顺转时产生一定的阻力,使一些在对阻力敏感的场合无法使用。我们在煤气表的止逆装置设计上就碰到这样的问题。顺转时若再加压力,则压损就会超标。为了解决这一问题,我们设计了一种浮动式无阻尼止逆装置,具有结构简单,止逆可靠,占据空间小,顺转无阻力特点。1.机构简介机构如图1所示。工作时,如果同主动臂一起旋转
General anti-reverse mechanism to use more ratchet mechanism, but the ratchet anti-reverse mechanism, such as used in the horizontal plane, in order to reliable anti-reverse, the pawl must be pressed against the ratchet spring, so that when the clockwise rotation to produce some resistance so that some In the case of resistance to the occasion can not be used. We encountered this problem with the design of the check valve in the gas meter. If you add pressure along the clockwise rotation, the pressure loss will exceed the standard. In order to solve this problem, we designed a non-damping floating anti-reverse device, with a simple structure, reliable anti-thrust, occupy a small space, smooth turn without resistance. 1. Organization Profile Organization as shown in Figure 1. When working, rotate with the main arm