SU1434234A1 - Arrangement for measuring bending ovality of pipe-litnes - Google Patents

Abstract

This invention relates to a measurement technique. The aim of the invention is to improve the performance of measurements. The device comprises a bar 1 with a scale of 2 sizes and two jaws 3 and 4, a frame 5 mounted on it with a sponge 6, a second frame 7 with a sponge 8 mounted on frame 5, and a scale. ovality placed on frame 5. Using sponges 4 and 6, measure the minimum diameter of the product 22 in a given section -: - scientific research institute, and then with the jaws 3 and 8 - the maximum diameter of the product and simultaneously read the ovality of the product 22 on a scale. f-ly, Zil.

Description

 And pack

GARDEN N | tC

oo 4

FIG. g

The invention relates to a measuring technique and can be used to measure the ovality of pipe bends during installation and ex- plotation / ation on enterprises of the metallurgical and chemical industry, oil and gas industry,

The purpose of the invention is to expand g: the productivity of measurements,

Fig. 1 shows a device for measuring the ovality in a general view; in FIG. 2, node I in FIG. 11, FIG. 3, section A-A in FIG. 1,

The device contains itanta 1 with a metric scale 2 with two measuring jaws 3 and 4s mounted on the rod 1 frame 5 with a measuring sponge 6s second frame 7 with a measuring sponge 85 the frame 5j movement limiter made in the form of a slider 9 with a latch 10 and the stop 115 connected with the slider 9 and two springs 12., and a second analogous limiter for moving frame 75 containing a slider 13 with a lock 14, an emphasis 15 and two springs 16 On frames 5 and 7, respectively, there are clamping elements G / and 18. On frame 5, a scale of 19 ovality beginning from accounts of which coincide with the arrow pointer 20 linear size on a scale of 2 between rybke 4 and b. On frame 7 there is a linear pointer 21

scale 2 between jaws 3 and 8 of ovality on a scale of 19.

Psala 19 with numerical designation of ovality as a percentage of: it has intervals of j determined from the condition;

iU 0.01 - n

noll 5

where p is the interval of divisions km /%; n is the division value J μg O ,, 25,

0,, 5 | one;

JDjioM nominal diameter of the measured product, mm. The numerical designations of ovality are made of;

,

TO:

si current ovality value,%;

1. - the current difference between the largest and smallest measured diameter-4I product. mm

The device works as follows.

In the initial position, the stops 11 and 15

The limiters of frames 5 and 7 are set on a scale of 2 to the maximum allowable diameters of the measured product 22; the sliders 9 and 13 are fixed on the rod 1, respectively, by clamps 10 and 14

in the free state of the springs 12 and 16,

A device with diluted jaws 4 and 6 is placed on the test article 22, the jaws 4 and 6 are supplied to

contact with him in the minimum section and the clamping element 17 fix the frame 5 on the rod 1, while the pointer 20 on the sponge 6 shows on the scale 2 the value of the minimum di-.

product meter

After measuring the minimum diameter, the device is removed from the product 22 and then with the opposite side, with the jaws 3 and 8 divorced, they are again placed on the product 22, the jaws 3 and 8 are brought in before the contact with the product in maximum section and the clamping element 18 fixes the frame 7 on the frame 5 this pointer

on the sponge 8, shows on scale 2 the magnitude of the maximum diameter of the RMIKS. The device allows, by measuring the minimum and then maximum, 1515 diameters of the product

simultaneously measure the amount of ovality.

Invention Formula

Claims (2)

1 A device for measuring the ovality of pipe bends, containing a bar with a linear scale of dimensions and a measuring sponge placed at one end thereof and a frame mounted with a possibility of moving along the bar with a second measuring sponge and a size indicator, characterized in that equipped with a third measuring jaw placed at the end of the rod opposite the first measuring jaw, a second frame with a fourth measuring sponge and a size indicator mounted on the first frame with the ability to move along it, mounted on the second frame with an ovality reference unit made in the form of on the first frame of the scale The ovality, the beginning of the count, is located on the second sponge, and the index of magnitude, the ovality, located on the fourth sponge, and the size indicators are located in the planes of the third and fourth measuring sponges. 2. The device according to claim 1, characterized in that it is provided with two limiters of movement frames, each of which is made in the form of a slider with a clamp and a spring-loaded stop mounted on the rod with the ability to move along it, one of the stops is located between the sponges on the rod and the first slide, the other on the free end of the rod, and the stops are on the side of the corresponding frameworks. 5 7 2 FIG.