SU1375363A1 - Method and apparatus for balancing movable masses - Google Patents

Abstract

The invention relates to pipe production can be used on cold rolling mills with a movable and stationary stand. The goal is to increase the effectiveness of balancing. The method of balancing moving masses is that an inertial force is applied to the moving masses created by the counterweight by telling him of the double masses of the moving masses one-way rotation with alternating acceleration and deceleration during each turn. The device contains a counterweight 1, placed on the shaft 2. On the shaft 2 of the counterweight and the driven shaft 3 of the drive of the moving masses, the levers 4 and 5 are fixed respectively. The other ends of the levers are connected by hinges 7 and 8 with the thrust 6, while the axes of the shaft 2, shaft 3 and The hinges 7 and 8 are located with the intersection at one point. 2 sec. f-ly, 3 ill. in (L oo el oo O5 00 i

Description

The invention relates to pipe production and can be used on cold rolling mills with a movable and stationary stand.

The purpose of the invention is to improve the efficiency of balancing.

FIG. I presents the graphs of the angular velocities of the driven shaft of the moving mass and w of the counterweight, the dynamic moment M from the force of inertia of the moving masses of the cold rolling mill for pipes, the balancing moment My from the forces of inertia of the counterweight; in fig. 2 - the proposed device, a general view; in fig. 3 is a view A of FIG. 2

The method of balancing consists in the fact that an inertial force is applied to the moving masses created by the counterweight by coo6ui, ei n5i to it, - and the double stroke of the moving masses of one-sided rotation with alternating acceleration and deceleration during each stroke,

The device, a realizing method, contains a counterweight mounted on the shaft 2, mounted on the shaft 2 of the counterweight and on the driven shaft 3 of a drive of moving masses, respectively, levers 4 and 5 and 6, connected with the help of hinges 7 and 8 with the other ends of p1z1 steps. The drive of rotation of the driven shaft is carried out from the shaft 9 of the main drive of the mill through the gear gears 10 and 1. To the crankshafts 12 are attached the rods 13 of moving masses.

The device works as follows.

The rotation from the shaft 9 of the main drive of the mill is transmitted through nyusterni 10 and 11, the driven shaft 3, the lever 5, tgu 6, the bearing lever 4 and the shaft 2 to the counterweight, 1. The uniform driving of the driven shaft 3 with an angular speed W3 is converted into a one-sided one, the uniform rotation of the counterweight with an angular speed W with alternation of separation and braking of moving masses from one extreme position to another during each turn. This character of the change in the angular velocity W is ensured by the arrangement of the axes of the shafts 3 and 2 and of the lines 7 and 8 of coupling 6 with the levers 4 and 5 with intersection at one point. At non-uniform. Rotation, the counterweight develops the inertial moment bei, creating a balanced on the shaft 3,

M. ff | ff

where 1 |, ib i and EI - inertia moment, angular velocity and acceleration of the counterweight 1, respectively; Shz - the angular velocity of the shaft 3;

.

f | е1 / шз - analogs of the angular velocity and acceleration of the counterweight I.

The antiphase movement of the counterweight and the moving. Mass, therefore, the foreign (MD) and equilibrium of the first M) MOMeirroB dos-1 i-ii-astc value of the angle a between the lever 5 if padiyskoy Formula of the invention

1. The method of balancing moving masses, mainly cold tube rolling mills, including applying to the non-moving masses a counter-inertial inertial force generated by a counterweight, differing from that.m., for the purpose of newpheny, it is balanced for a double stroke of moving masses to counterbalance one-way alternation of acceleration and deceleration during each turn.

2. A device for balancing 1 and movable masses, containing a counterweight, mounted on a shaft, an inconsistent lever, kinematically connected with a lever of a driving shaft of a drive of movable masses, characterized in that the kinematic connection of the levers is made through a hinged link with it. mi tgu, with the axes of the shaft, counterweight and plunger connecting the arms with the levers. they intersect at one point.

FB

Editor O. Yurkovetskaya Order 438 / II

.З

Compiled by N. Umn gpna

Tehred I. VeresKorrektor M. Sharoshn

Circulation 467 Subscription

Claims (2)

Claim 1. A method of balancing movable masses, mainly cold rolling mills, comprising applying a counter-weighted inertia force to the movable masses, characterized in that, in order to increase the balancing efficiency, one-way rotation is reported to the counterweight with a double stroke of the moving masses, with alternating acceleration and braking during each stroke. 2. A device for balancing movable masses, comprising a counterweight mounted on a shaft carrying a lever kinematically connected to the lever of the driven shaft of the drive of moving masses, characterized in that the kinematic connection of the levers is through a link articulated to them, while the axis of the driven shaft , the counterweight shaft and the hinges connecting the traction with levers intersect at one point. Phage 1 Type A