SU616016A1 - Machine for expansion by rolling great-diameter profiled rings - Google Patents

Claims (2)

. and having a relatively small gabar. dimensions, the goal is set at 1a to the fact that the workers- the cavities of the loading and unloading power cylinders according to the invention are interconnected, and the ratio of the working area of the piston of the loading power cylinder to the working area of the piston of the unloading power cylinder is equal to the ratio of the distance from the folding support to the main support of the non-drive roll to the distance from the last to the band of the drive roll. It is advisable to place the unloading power cylinder between the folding support and the hinge for its attachment to the frame. FIG. 1 shows the proposed machine, a general view; 2 and 3, sections according to and along BB, respectively, of FIG. 1, figure 4, is a view along the arrow in FIG. four; in fig. 6 given kinematiche. ka-schema machine; in fig. 7 is a layout diagram of power cylinders. The machine contains a bed 1 with non-driving roller 2 mounted on it for mounting the rolling out ring 3, driving roller 4, loading cylinder 5 for moving the driving roller 4 relative to STANINE 1 in the plane of rolling and creating. No effort rolling P ,. (Fig. 7), with the pressing rollers 6 for keeping the rolling ring 3 in position when its vertical axis coincides with the axis of rolling located symmetrically relative to the latter, and the control roller 7 mounted on the support plate 8 along the axis of rolling. The non-drive roll 2 is provided with a folding support 9, which is manually or automatically folded when the rolling ring 3 is installed or removed. The folding support 9 through the unloading power cylinder 10 and the hinge 11 is connected to the upper part of the frame 1. The working cavity 12 of the unloading force cylinder 10 is connected with a working cavity 13 loading the power cylinder 5 using a flexible pipe 14 (Fig. 4,5). At the same time, the working areas of the pistons Sf and Sj, respectively, of the power cylinders 5 and 10 are the distances E and (. (Respectively, from the bandage of the drive roll 4 to the main bearing of the 15-non-driven roll 2 and from the latter to the folding support 9). the effect of moving the cantilever roll 2 from the force P of rolling P on the accuracy of rolling, as in support 15. a calculated reaction is required and (Fig. 7) for all values of rolling or rolling. R. In this direction of reaction R will always coincide with the direction of the force P / unloading It is also excluded from the force of the cylinder 10. The effect of the gaps in the folding support 9 on the accuracy of rolling. The unloading power cylinder 10 is located between the folding support 9 and the hinge 11, which reduces the overall dimensions of the machine. The principle of the proposed rolling machine is as follows From the console of the non-driving roll 2, the support 9 is removed and tilted away. A roll-out ring 3 is put on the thickened part of the non-driving roll 2, and the support 9 is thrown onto the console of the roll 13 of the power cylinder 5. body, for example oil, under the necessary pressure. As a result, the drive roll 4 moves in the direction of the non-drive roll 2 with the roll-out ring 3 put on it. Before the drive roll 4 comes into contact with the surface of the roll-out ring 3, a rotation drive is activated. When they are in contact, the force P of the power cylinder 5 is transmitted to the main support 15 of the non-drive roll 2, the console of the latter moves down, and the parallelism of the axes of the rolls 2 and 4 is disrupted. As a result, the taper of the rolling ring 3 appears; From the cavity 13 of the sylloy cylinder 5 through the pipe 14, the working fluid enters the pblity 12 of the power cylinder 10 and a force 2 is created in it, which is transmitted through the support 9 to the console of the non-driven roll 2. As a result, the non-parallelism of the axes of the rolls 2 and 4 and the taper of the rolls are eliminated rings 3. Upon reaching the required diameter of the roll out of the ring. 3 using the control roller. 7, the Maddana is disabled. The machine described is simple in design and has relatively small overall dimensions. The use of the machine in production allows, by increasing the accuracy of rolling, to reduce the metal consumption for the manufacture of ring-shaped products, the machining time and the cost of the latter. Claim 1. The machine for rolling the large diameter core rings containing a frame, mounted in the frame a drive roller having a bandage, a non-drive roller having a main support and a folding support fixed by means of a hinge on the frame, and also connecting a power cylinder connected to the drive roller and an unloading power cylinder associated with a folding support, characterized in that, in order to increase the rolling accuracy, simplify the design and reduce the overall dimensions of the machine, the working cavities of the loading and unloading gruzhayuschego cylinders are interconnected, and the ratio of the working area of the piston of the loading cylinder to the working area of the piston cylinder unloading equal to the ratio of the distance from the hinged support to the main support NDE roll to the distance from the last to the bandage of the drive roll; 2. Machine pop. 1, characterized in that the unloading power cylinder is located between the folding support and the hinge for its attachment to the frame. Sources of information taken into account in the examination: 1. Authors certificate of the USSR, 242112, cl. B 21 H 1/06, 1967. 2. The patent of the Federal Republic of Germany 1188544, cl, B 21 H 1/06, 1965. // jla. Riga.g Aff.J eleven / eleven