2results about How to "Increased transfer torque capacity" patented technology

The utility model relates to a threaded part fastening frock discloses a straight thread sleeve quick installation device, including electric wrench and sleeve clamping mechanism, the clamping mechanism includes: the connecting seat, its one end is connected with the output shaft of electric wrench, movable seat, the opposite end of movable seat and connecting seat is provided with concave-convex cooperation structure, can pass through connecting seat's torque and transmit to movable seat, and concave-convex cooperation structure has the clearance, so that movable seat can move in axial direction relative to connecting seat, elastic reset piece, it is connected between connecting seat and movable seat, so that connecting seat and movable seat can reset to have the position of clearance, claw subassembly, including at least 2 claws, articulate and connect on movable seat, and reset torsional spring is arranged on articulated axle, the claw has clamping lever part and control lever part. Straight thread sleeve quick installation device of the utility model, torque transmission capacity is stronger, and screwing is more quick.

The utility model belongs to the technical field of roller bits, and particularly relates to a six-mode screw drill universal shaft which comprises an upper movable hinge, a ball seat, a ball cap, a transmission key, an upper locking sleeve, a rubber sealing sleeve, a hexagonal connecting rod, a lower indentation sleeve and a lower movable hinge. The ball seat is embedded in the upper movable hinge; the ball cap is inserted into the top end of the hexagonal connecting rod and makes contact with the ball seat through a spherical surface. The top of the hexagonal connecting rod is connected with the upper movable hinge through a hexagon; the transmission key is arranged between the hexagonal connecting rod and the upper movable hinge; the upper locking sleeve is connected with the upper movable hinge through threads; the rubber sealing sleeve is connected with the hexagonal connecting rod and the upper locking sleeve and is used for ensuring that the transmission part works under the condition of sealing grease; the connecting structure of the lower end is identical to that of the upper end. Compared with point-line contact of a traditional petal-type universal shaft and line-line contact of a traditional ball-column-type sealing universal shaft, the universal shaft has the advantages that the anti-shearing face is greatly enlarged, the torque transmission capacity is remarkably improved, and the universal shaft can better adapt to the large-torque operation environment through a face-face contact mode.