In fact, we have already analyzed a lot about the backstop. Then we also know that backstops include belt backstops and roller backstops, so let's briefly analyze the special-shaped backstops.

First of all, the special-shaped backstop is a special form that is applied to the backstop through the special-shaped block clutch. It is mainly composed of the body of the backstop and the backstop arm, and one end of the backstop arm is the backstop. The outer ring of the stopper body is bound together, and the other section is bound to the foundation.

Then the working principle of the special-shaped backstop is similar to the working principle of the roller backstop, so the most important one is the special-shaped block. The manifestation is: when the rotation speed of the inner ring of the special-shaped backstop is greater than the rotation speed of the outer ring, then there is almost no friction at this time, but when the rotation speed of the outer ring is greater than the rotation speed of the inner ring, at this time, the special-shaped block will make the speed of the inner ring and the outer ring become close under the action of friction, and then the effect of backstop is actually achieved at this time.