fixed coupling according to the change of the relative position and position of the two shafts connected. It is mainly used in places where the two axes are strictly centered and does not have relativ

A mechanical part used to couple two shafts (active and driven) in different mechanisms to rotate together to transmit torque. In high-speed and heavy-duty power transmissions, some couplings also hav

A directional coupler is a four-port component with directional transmission characteristics that is contacted by a coupling device together with two pairs of transmission systems. Firstly, the perfor

The circuit is an "AND gate" logic circuit. The logical expression is that the two photosensitive tubes in the P=AB diagram are connected in series. Only when the input logic level A=1, B=1, the outpu

The cabbage fields on the north and south sides of Lao Zhang are divided into three parts. Lao Zhang hopes to change through a one-time waterway, and each part gets a small part of the water flow from

The cabbage fields on the north and south sides of Lao Zhang are divided into three parts. Lao Zhang hopes to change through a one-time waterway, and each part gets a small part of the water flow from