2results about How to "Improve extrusion strength" patented technology

The buttress buckle coupling comprises a coupling body, a connecting female buckle is arranged in the coupling body, the connecting female buckle is connected with a connecting male buckle on a pipeline, the connecting female buckle comprises a machine tightening shoulder, and a first connecting female buckle end and a second connecting female buckle end are arranged on the two sides of the connecting female buckle respectively. The first connecting female buckle end and the second connecting female buckle end are connected with a finished pipe, a first end shoulder A is arranged at the end, away from the machine tightening shoulder, of the connecting female buckle, and the side, close to the machine tightening shoulder, of the connecting female buckle is matched with a second end shoulder C at the upper end of the connecting male buckle. A first end shoulder A of the connecting female buckle abuts against a first end shoulder B of the connecting male buckle, the side vertical faces of the two ends of the machine fastening shoulder are sealing faces, a tool withdrawal groove is formed in the side close to the machine fastening shoulder, the machine fastening shoulder is a machine fastening position shoulder, the angle between the machine fastening shoulder and the radial plane ranges from 0 degree to 5 degrees, and the angle between the machine fastening shoulder and the radial plane ranges from 0 degree to 5 degrees. And after being tightened, the bolt is flush with an inner hole of the connecting male buckle end.

The utility model discloses a nodular cast iron end cover structure for wind power generator, including motor end cover, one side of motor end cover is connected with motor shell, the one side that motor shell is connected with motor end cover is equipped with annular groove, the inner wall fixed connection of motor end cover has sealing rubber ring, one side of sealing rubber ring is equipped with the convex ridge that is matched with annular groove shape, in the utility model, one side of motor end cover is connected with motor shell, and one side of motor shell is equipped with annular groove, and the inner wall of motor end cover is fixed with sealing rubber ring, one side of sealing rubber ring is equipped with convex ridge, when motor shell and motor end cover interengagement, this convex ridge can be closely matched with annular groove, realizes sealing function, prevents air and moisture from entering generator inside, in addition, through manual rotation screw rod, can make it continuous extrusion soft washer, thereby strengthens the extrusion intensity between convex ridge and annular groove.