SU913025A1 - Device for measuring diameter of rings made of elastic material - Google Patents

Description

The invention relates to mechanical engineering and can be used to measure the diameters of the rings of elastic material.

Closest to the present invention is a device for measuring the diameters of rings made of elastic material, comprising a housing, a measuring roller installed in it, a drive for its rotation; counter of revolutions of the measuring roller, connected to the counter sensor for determining the moment of turning the measured ring on the measuring roller one turn, and the clamping mechanism (13. 15

In the known device, the measuring roller controls with a controlled ring on a small area. Ets ^ _ _p

leads to the need for significant clamping force applied to the spring mechanism, and causes deformation and distortion of the shape of the test ring, resulting in low measurement accuracy.

The purpose of the invention is to improve the accuracy of control.

This goal is achieved by the fact that in the device for measuring .. 30

gauge diameters of elastic material, comprising a housing, a measuring roller installed in it, a drive for its rotation, a measuring roller speed counter, a sensor connected to the counter, determining the turning moment of the measured ring on the measuring roller one turn, and a pressing mechanism, the last made in the form of two rollers, whose axes are parallel to the axis of the measuring roller, the angle * between the planes passing through, the axis of the measuring roller and the axis of the rollers of the clamping mechanism is selected from 50 to 180 °, and emp measuring roller is chosen from the condition

2 5 <3 _к <ϋ ρ <вн вн τηΐ and 'where D * is the thickness of the measured ring;

Op - diameter measuring roller;

IV with minimum inner diameter of the ring to be measured.

In the drawing, shows a diagram of the device 'for measuring the diameter of the rings of elastic material.

The device includes a housing 1, a measuring roller 2 installed therein, a drive 3 of its rotation, a rotational speed counter 4 measuring 3

913025

four

Roller 2, connected to counter 4, sensor 5 to determine when the mark 6 passes, applied to the measured ring 7, and two rollers 8 and 9. Angle a. between the planes passing through the axis of the roller 5 and the axis of the rollers 8 and 9, is selected in the range of 50 - 180 °, which provides the necessary adhesion of the ring 7 to the roller 2 with a minimum downforce force applied to the rollers 8 10

and 9. The diameter of roller 2 is selected from the condition ·

25 <3 ^ <ϋρ <,

where ά _κ is the thickness of ring 7;

minimum internal dia-, 5 meter ring 7;

D _P - the diameter of the roller 2.,

With this aspect ratio, a higher measurement accuracy is achieved. 20

The device works as follows.

3, the initial state of the rollers 8 and 9 are relegated to the inoperative position. On the roller 2 a controlled ring 7 is put on, on the surface of which a mark 6 is applied. The counter 4 is set to zero.

When measuring the rollers 8 and 9 are lowered into the working position and provide the clamp ring 7 to the roller 2. Include the actuator 3 and inform the roller 2 rotational motion. The surface of the controlled ring is moved relative to the sensor 5.

At the moment of passing the mark 6 in front of the 35 sensor 5, the latter turns on the count-, chick 4. When turning the ring 7 one turn, the mark 6 again passes in front of the 'sensor 5, which turns off the counter 4. On the scoreboard, the measured diameter of the ring 7 is fixed .

Structural differences and geometrical parameters of the proposed device allow for a higher accuracy of measurements of the diameters of the rings from. elastic material / that can date a certain economic effect from its use in industry.

Claims (1)

Claim A device for measuring the diameters of rings made of elastic material, comprising a housing, a measuring roller installed therein, a drive for its rotation, a rev counter for the measuring roller, a sensor for detecting the moment of rotation of the measured ring on the measuring roller one turn connected to the counter, and a pressure mechanism different the fact that, in order to improve the accuracy of control, the clamping mechanism is made in the form of two rollers, whose axes are parallel to the axis of the measuring roller, the angle between the planes passing through s measuring roller axle and rollers .. pressing mechanism is selected in the range 50- 180 °, and the diameter of the measuring roller is selected from the condition 25ά <O & c tlp ’ where <3g is the thickness of the ring to be measured? Er - diameter measuring roller; Ο _0Η№ίη "minimum internal diameter of the ring to be measured.