SU905709A1 - Device for testing pipes for strength - Google Patents

Description

I

The invention relates to a test apparatus, in particular to devices for taking pipes of large diameter.

A device for testing the strength of pipes is known, comprising a base for installation by laying a test pipe, two racks mounted on the base, fixed on them a fixed traverse, a movable traverse and a jack 1.

The disadvantage of this device is that it is impossible to test pipes with a diameter of more than 1.5 m due to the complexity of creating the necessary stability of the entire system for increasing the protective zone of the installation.

The purpose of the invention is to provide testing of pipes with a diameter of more than 1.5 m.

This goal is achieved by the fact that stand-. The ki are U-shaped and are designed to be placed at the ends of the test pipe, the fixed traverse is made with two through holes and is located in the pipe to be tested, and the movable traverse is complete in the form of two interconnected rods installed in the holes

. a fixed beam, parallel beams, one of which is placed above the test tube, and a jack is installed between the fixed beam and the other beam.

Figure 1 schematically shows the proposed device; figure 2 - section aa in figure 1 (side view).

The device contains a base 1 with a gasket 2 for installation on it test

to the pipe 3 with its side surface, two U-shaped racks 4 and 5 fixed and fixed on the base, fixed to the racks 4 and 5 fixed to the cross bar 6, made with two through holes

IS 7 and 8, a movable yoke, made in the form of two interconnected by means of yoke 9 and 10, installed in holes 7 and 8 of fixed yoke 6, parallel beams 11 and 12, one of which (12) is spaced over. the test pipe 3, the jack 13, installed between the fixed traverse 6 and the beam 11.

Claims (1)

The device works as follows. The pipe 3 is installed on the gasket 2, placed on the base 1, its side surface. At the ends of the pipe 3, U-shaped pillars 4 and 5 are placed. Inside the pipe 3, parallel to its axis, are mounted on racks 4 and 5 by a fixed yoke 6, which rigidly connects pillars 4 and 5 to each other. In openings 7 and 8, the cross member 6 is set by the gigs 9 and the ends of which beams 11 and 12 are rigidly attached, one of which (12) is placed above the pipe 3 on the gasket 14, and the other (11) is placed under the fixed cross bar 6. Jack 13 mounted between beam 11 and crossmember 6. The jack 13, abutting against the fixed cross head 6, presses the beam 11 and causes the movable cross member to move downward, while transmitting the compressive load to the pipe 3 through the gasket 14. This ensures reliable stability as the test device and pipe specimen And the fact that the jack 13 is located inside the pipe 3, below the fixed traverse 6, which does not change its position and is rigidly attached to the uprights 4 and 5. The device provides a test of pipes with a diameter of more than 1.5 m and provides 94 reliable data on bearing capacity of pipes with low metal consumption. Claims. A device for testing durability of pipes containing a base for installation by laying a test pipe, mounted on a base two racks, fixed on them a fixed traverse, a movable traverse and a jack, characterized in that in order to ensure testing of pipes with a diameter of more than 1.5 m , the posts are U-shaped and designed to be placed at the ends of the test pipe, the fixed crosshead is made with two through holes and is located in the test pipe, and the mobile crosshead is made in the form of two connectors ennyh between a connecting rods mounted in openings fixed crosspiece, parallel beams, one of which is positioned over the test tube, and the jack is mounted between nepodvihshoy beam and another beam. Sources of information taken into account during the examination 1. GOST 6482-71. Reinforced concrete pipes free-flow. .f1rjV ITI P. 1Z FIG. g