RU1796868C - Device for measuring size of ring - Google Patents

Abstract

The invention relates to measuring equipment. The aim of the invention is to expand the functionality by measuring not only the diameter but also the width of the elastic split ring. The goal is achieved due to the fact that the measuring unit is made in the form of a flexible split ring 4, fixed at one end to a ferrule 2, and the other to a slider 8. On the cylindrical surface of the ring there are protrusions 5, which serve to give rigidity to the measuring unit, Slider 8 spring-loaded spring 9, on the slider placed a roller interacting with the eccentric roller. 3 ill.

Description

The invention relates to measuring technique and is applicable for measuring the groove width of non-rigid split rings, for example, for measuring the amount of thermal clearance in a piston ring lock.

A device for measuring a joint clearance is known, comprising a clamping sleeve into which a controlled ring is mounted and a wedge inserted into an axial clearance in the ring lock.

This mechanism requires the orientation of the groove of the controlled split ring to position the groove in the area of the measuring elements, which complicates the design of the device and increases the complexity of the measurement.

A device for measuring product diameters is known, in which a ring of elastic material is covered by a measuring element made in the form of a split ring, one end of which is fixed to a clip and the other to a guide and interacting with the reading unit.

However, this device does not allow measuring the groove width of open elastic rings.

The purpose of the invention is to expand functionality by measuring the groove width of open elastic rings. .

This goal is achieved by the fact that in the device for measuring the groove of the ring containing the base, a clip fixed to it, a measuring unit made in the form of a split ring, one end of which is fixed to the clip, a reference unit interacting with the other end of the ring, and a mechanism for moving the split rings, according to the invention, the mechanism for moving the split ring is made in the form of a slider placed on the base with axial movement, connected to the other end of the split ring, a roller placed on the slide, .i interacting with the eccentric roller, the split ring provided with radial projections on the outer surface, and the device is provided with a spring fixed at one end on a holder, and the other - at respective projections.

In FIG. .T shows a general view of the device; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 2.

The device comprises a base 1, a sleeve 2 is placed in it, having a groove 3 (Fig. 3), into which the measuring element is mounted. The measuring element is made in the form of a flexible split ring

4 (Fig. 1) with peripheral radial protrusions 5 located in the groove 3 (Fig. 3) of the yoke 2 and used to give the measuring element rigidity in the vertical plane and for guiding the yoke 2 in the groove 3. Measuring split ring 4 (Fig. 1) one end 6 is fixed on the cage 2, and the other end 7 on the slider 8, movable under the influence of the spring 9 and

an eccentric 10 having a handle 11. The roller of the eccentric 10 is mounted so that it can interact with the roller 12 of the slider 8. The springs 13 serve to give the measuring element A in a free state

a shape close to the circumference for freely placing a controlled ring therein through measurement. The final left position of the slider 8 is registered by the indicator 14, fixed

based on 1.

Before work, you must configure the device. To do this, using the handle 11 and the cam of the eccentric 10, acting on the roller 12, the slider 8 with a fixed

on it, the end 7 of the measuring split ring 4 is retracted to the extreme right position. In the increased space of the measuring split ring 4, a reference made in the form of a disk is inserted

diameter DI or D2 defined by the formulas

V Di or B2 C max,

where C tgO:

D is the nominal outer diameter of the measured split ring;

C is the circumference of the outer cylindrical surface of diameter D;

Rmin is the minimum width of the groove of the ring;

Rmax - the maximum width of the groove of the ring.

Then the handle 11 must be returned to its original position, while

spring 9 will move slider 8 to the left. The flexible measuring element 4 will tightly cover the inserted standard in diameter DI or D2. In this case, the circumference Ci is fixed; C - Pmin, OR C2 C - Pmax,

which corresponds to the zero value of the recording device, in this case indicator 16, the largest gap value is determined by the number of divisions on the indicator scale.

After adjusting the measuring element, a controlled split ring (without orientation) is laid on the surface of the base 1 inside the measuring split ring 4. By turning the eccentric 10, the spring 9 is released, moving

Claims (1)

a slider 8, which tightens the ends 6 and 7 of the measuring split ring 4 until the ends of the tested split ring are closed and at the same time acts on the indicator 14; If the reading of the recording device (indicator) does not go beyond the limits set according to the standards DI (Ci. L Di) or D2 (C2 to D2), then this means that the measured line of the circle C is between the values of GI and Cg, i.e. . Ci Si Cgili PMax R Rmin. The use of the inventive device will improve the accuracy of measurement, reduce the complexity and expand the technological capabilities of the measurement process by eliminating the orientation of the ring. SUMMARY OF THE INVENTION A device for measuring the dimensions of a ring, comprising a base fixed to a clip, a measuring unit: made in the form of a split ring, one end of which is mounted on a clip, a reference unit interacting with the other end of the ring, and a mechanism for moving the split ring, which means that in order to expand the functionality by measuring not only the diameter, but and the width of the groove of open elastic rings, the mechanism for moving the split ring is made in the form of a slider located on the base with the possibility of axial movement associated with the other end of the split ring; the roller placed on the slider, and interacting with the eccentric roller, on the outer surface of the split ring. made of radial protrusions, and the device is equipped with springs fixed at one end to the cage, and the other on the corresponding protrusions,