SU1456998A1 - Continuous flexible article with means for protection against mechanical damage - Google Patents

Abstract

The invention relates to electrical engineering, in particular, to the field of protecting flexible long articles, such as electrical cables, from mechanical damage. The purpose of the invention is to increase the reliability of protection by 4 1-cs the plane of movement of the product during bending. On a flexible long product 2, for example. an electrical cable designed to connect the source with a movable current collector, in the area of the bend of the product wearing sleeves 1, tightly pressed to each other ends. The sleeves are fixed on the product area clamps 3 and 4, installed at the ends of the site. The end surfaces of the sleeves 1 are formed by the intersection of two planes at angles, on one end and o, on the other, and (, Due to the difference in angles, adjacent sleeves rotate relative to each other around the line of intersection of the planes by an angle, the required number of sleeves set bending angle. The sleeves can only rotate around the intersection lines of the planes that form the ends, which are parallel to each other, and in the bend area the product can only move in the plane endikul molecular specified lines. 3 yl. i (L

Description

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The invention relates to electrical equipment, in particular, to the operation of flexible long-length pieces, for example electric cables, connecting u, mobile, and fixed devices.

The purpose of the invention is to increase the reliability of the protection of the product from mechanical damage by means of 4-fold compensation of the movement of the product during bends.

Fig. 1 shows the electrically cable with the protection means installed on it in the original application 15 of the Scientific Research Institute} in Fig.2 the same, in a bent state; Fig. 3 shows a protective sleeve, a longitudinal section.

Cylindrical sleeves I are installed on the product 2 close to one another -20th. The outer sleeves with clamps 3 and 4 and clamping bolts 5 are mechanically fastened on the surface of article 2, the end surfaces of the sleeves are formed by two planes each, ... 25 Planes intersect at an angle o, and

During bending of the product 2, each sleeve, abutting adjacent sleeves along the intersection line of planes, turns back relative to neighboring sleeves 1 by an angle equal to / 2 (. The required number of sleeves is determined by the specified angle of rotation of the product in the bend area. Since the rotation of the sleeves 1 relative to each other is possible only in a plane perpendicular to the line of contact between the ends, the whole product can be bent only in the specified plane, the fitting of the extreme sleeves and fixing them relative to the surface of the product with 2 clamps 3 4 provides

bending the product in a given plane, which avoids the ingress of the product in the process of bending into a number of operating mechanisms.

If necessary, install protective sleeves 1 on the product group, (For example, cables, sleeves are oval in cross section,:. The use of protective sleeves on flexible long products, in particular for mine cables, avoids sharp bends of cables and their falling into moving mechanism.

Claims (1)

Invention Formula A lengthy flexible product with a means of protection against mechanical damage in the form of cylindrical sleeves made of rigid mechanically strong material that are installed at the site of the product in the place of its bending close to one another with a contact of the ends, so that, in order to increase the reliability of protection by fixing the plane of movement when bending, each sleeve has one end surface formed by two planes intersecting with an obtuse angle cl i and another end surface formed by two planes Intersecting at an obtuse angle rt, the intersection lines of the planes. The forming end surfaces are parallel and intersect the product axis, the end surfaces of the sleeves contact along said intersection lines, the sleeves installed at the boundaries of the said bend section are mechanically fixed to the surface of the product, while Wj at fi. d, i, l Fig.z fig.g