SU513745A1 - Drive rolls of cold rolling mill - Google Patents

Description

The invention is from Osit to the roll roll mill drives.

The drive of the rolls of the cold rolling mill tube is known, which includes a fixed support with profile surface surfaces and installed on both sides of the rolls.

A disadvantage of the known drive is a complex kinematic circuit that converts the translational movement of the cage through rotational movement of the rolls with the help of n: arnirically connected to the cranks of the levers, which interact with the fixed surfaces of the fixed frame, and the axes of the rollers are placed in a spring-loaded slider located in vertical cage bed guides. The presence of a large number of connections in the drive leads to dynamic loads that positively affect the quality of the pipes.

In order to reduce the dynamic loads in the proposed drive, the profile surfaces of the fixed support are made in the form of slots, in which the red pins, located with each other relative to 10 others, are located, by an angle.

The drawing shows the described drive of the shaft mill of cold rolling tubes.

Drive Contains pedemotor support /, in which interchangeable plates 2 are complete}) s profile grooves 3. In the grooves there are Krivoschips 4 fixed on the lower roll 5, which is connected to the top by the first roll 7 through gears 6.

The profile of the grooves 3 ensures the required correspondence of the instantaneous rates of deformation of the metal and the ridge points of the roll gauge and A can be performed, for example, according to the law:

R / -: Sq.-Sine): y, - p, -4-A | (1

10 L-; P ,

de; and Y are the coordinates of the position ueiirpa of the crank during the movement of the stand;

9-current zapacheni angles iosoro-, that roll, counted from the direction of the vertical axis passing through the center of rotation of the roll, and the direction of the curvature on the roll;

pi and g; - respectively, I am happy with the 1us-vector of the ridge caliber and the radius of the stream corresponding to the given} 10th angle of rotation of the roll;

/ 2j - some real number, determined by the calibration tool.

The curvatures are displaced relative to each other} and the angle, and the profile grooves 3 symmetrically relative to the horizontal plane 3 on the opposite plates 2 supports / horizontally displaced on the well D, where -A, taking into account the reduced law, on the angular displacement of the crankshafts, defined is as follows:

eleven

- „- cage travel: i - cage travel

6Z

when the cage moves as a result of the interaction of the cranks 4 with the profiled surfaces of the grooves 3, a torque is generated which turns the rolls according to a certain, predetermined law,

providing the best conditions of deformation; accn metal.

Claims (1)

Invention Formula The drive of the rolls of the cold rolling mill tube, including a non-bearing support with profile overrobes, installed on both sides of the roll of a crypoton, different telts, in order to reduce the dynamic loads in the drive, the profile surfaces of the fixed support are made in the form of aeroz in which curvoschips are placed, offset from each other by an angle. ///////. b; ilii "U% II: & I Ui