RU1798564C - Method of forming flexible friction members for rope vibration insulators - Google Patents

Abstract

Using; mechanical engineering, manufacturing of elastic-friction elements. SUMMARY OF THE INVENTION: A cable is wound onto hollow rods and bushings mounted on a mandrel, by sequentially bending them. On the hollow rods x, the main return loops are formed. Alternating return loops alternating with the main ones are formed on the bushings. Return loops are tightened with closing loops. 2 ill.

Description

The invention relates to the field of mechanical engineering, in particular to the protection of devices and equipment from the effects of dynamic loads, and can be used in the manufacture of elastic friction elements (UVE) for cable vibration isolators,

The aim of the invention is to increase the damping and carrying capacity of UVE.

Figure 1 schematically shows the mandrel on which the UVE is formed, general view; figure 2 is a section aa in figure 1.

The mandrel contains a base 1 with pins 2 mounted on it in increments along the contour line of the UVE and pins 3 and 4 with extreme hollow removable rods fixed to the base 1 with screws 5.

Before winding the cable onto each of the pins 2 put on the sleeve 6 of the first section with flanges at the ends.

The winding of the cable is done in the Shuttle order and starts from the extreme hollow shaft 4 with the subsequent laying of the cable between the bushings with looped rows 7 with the main return loops 8 enveloping the rods 3 and 4.

After winding several loop-like rows 7, loop-like rows 9 are wound in the same way with additional return loops 10 enveloping the sleeves 6 adjacent to the hollow rods 3 and 4.

Thus, in each section, the winding of rows 7 and the main return loops 8 enveloping the rods 3 and 4 alternate with the winding of rows 9 with additional return loops 10 enveloping the sleeves 6 adjacent to the hollow rods 3 and 4.

 After winding the required number of sections, the screws 5 are loosened, the hollow rods 3 and 4 and the bushings 6 together with the cable wound on them are removed from the base 1.

Then, the initial portion of the cable is passed through the inner cavity of the rod 4 from the side opposite the exit point of the initial portion of the cable, and the final portion of the cable is threaded through the internal cavity of the rod 3 from the side opposite to the point of departure from the end portion of the cable, after which both rods are removed when sweeping each of the rods from the end

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cable and simultaneous release of the rod from under the return loops. Each of the two closing loops formed in this way (the main return loops Q displaced from it from the rod 3 or 4, are not drawn together until they fit together. In this case, a volumetric UVE is formed with a longitudinal axis passing through the centers of both closing loops with equal position sections around the circumference, each of which has additional loop-shaped rows of cable 9 with return loops 10 located on bushings 6 adjacent to the closing loops.

The proposed method provides the possibility of forming additional rows of cable due to the formation of additional return loops on the bushings

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which provides UVE great damping and bearing capacity. The formula of the invention The method of forming elastic-friction elements for cable vibration isolators, which consists in winding the cable onto the hollow rods mounted on the mandrel and the bushings located between them with sequential bending of the latter in planes perpendicular to the bushings, the formation of the main return loops on hollow rods, the subsequent removal of the bushings and hollow rods with a cable wound on them from the mandrel, the formation of closing loops and pulling together the return loops, which are also distinguishing in order to increase Mpfiruyuschey and bearing capacity, alternating with the main additional return loops on the sleeves are formed.

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