Ball Shaft

The ball type sliding shaft belongs to the mechanical locking type central air pressure sliding shaft, which is suitable for the receiving and unwinding system on papermaking and printing and packaging equipment. The center spindle has a nozzle hole and a vent hole, and a plurality of through holes communicate with the air bag slot. Airbags and wool felt are installed in the tank. A certain number of steel ball slip rings are sleeved on the main shaft, and the ends of each slip ring are pressed by the spacer sleeve. A friction spacer is arranged between the slip ring and the ring, and the slip ring is closely attached to the end surface of the mandrel by the end pressure spring. During operation, the slip ring is controlled to slip with a certain slip torque value (torque), and the slip amount just compensates for the speed difference generated, thereby precisely controlling the tension of each roll material, and the constant tension is taken up to ensure the winding. quality.

The principle is as follows: the mandrel rotates under the driving of the motor, and sequentially drives the slip ring to rotate under the action of the friction of the end face, and the steel ball on the slip ring moves outwardly in the groove to tighten the inner wall of the roll, and is driven to be fixed on the slip ring. The receiving core and the coil are rotated to complete the multi-roll winding function. The compressed air enters the airbag through the air passage from the air nozzle, and the airbag pushes up the wool felt to compress the inner wall of the slip ring to change the frictional force of the slip ring.

Features:
1.1, the structure is simple, and the scope of adaptation is wide.
1.2, large carrying capacity: Made of high-quality steel, the unique structure greatly enhances the bearing weight.
1.3, long use time, simple maintenance: parts can be used interchangeably, making it easy to maintain.
1.4. High precision of use: The shaft body is made of alloy steel, which has strong anti-deformation ability and small circumferential jump.

Technique parameter

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