SU1492207A1 - Device for measuring deviation of crossing axis of bevel gearing openings - Google Patents

Abstract

The invention relates to mechanical engineering, namely to means of controlling gears. The purpose of the invention is to enhance the functionality by allowing both non-perpendicularity and axial distance to be measured and productivity to be enhanced by simultaneously measuring two parameters. This is achieved by the fact that two transducers of linear displacements in one plane are installed on the reference prism, and their measurement lines are mutually perpendicular. 5 il.

Description

The invention relates to mechanical engineering, namely to means of controlling gears.

The purpose of the invention is to expand the functionality of io-nal capabilities and increase the productivity of measurements by providing a measurement of time and axial distance.

FIG. 1 shows a structural diagram of the device; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 - section bb In figure 2; in fig. 5 is a diagram for calculating a measurement error.

The device DP for measuring the deviations of the location of the intersecting axes of the openings of the bodies of bevel gears includes a housing 1 in which two mutually perpendicular non-intersecting holes are placed with the possibility of axial movement of the rod 2 and 3. At the free end of one of them, a basing prism 4 is installed perpendicular to it , at the free end of the other there is a supporting prism 5 with a holder 6 and converters 7 and 8 linear: displacements located in the same plane in mutually perpendicular directions . The support and base prisms rest on the output ends of the cylindrical mandrels 9 and 10, mounted in the bores of the bearing housing of the bevel gear.

The device works as follows.

1C

tc

about

To measure deviations of the axle angle and the axial distance, the zero-adjusted device (Fig. 1-3) with its base prism 4 is mounted on one of the mandrels, for example 10, placed in the housing of the bevel gear, and the reference prism 5 on the end of the other mandrel, for example 9 In this case, the Nolsky transducers 7 and 8 movements (Fig. 3) are oriented in the measurement plane, with regard to the corrections 9, will show the deviations

axes from zero position. I

The deviation of the center angle E-j,

is determined by reading Dx converter 8, linear displacements (Figs 1-3) on the measuring base 1 from the relations for a small angle

OH

one

E 5 G1

glad.

ar

The deviation of the axial distance (Fig. 1-3) is determined by the reading of the transducer 7 linear displacements and the distance p from the axis of the clamping prism 4 to the axis of the transducer from the ratios

ace

R

The tips 7 and B of the transducers or ampoule displacements due to the misalignment of the mandrels from the nominal position move along the cylindrical surface by an amount y and them. These movements contribute to the measurement of errors, respectively, which can be estimated, and

not using the scheme (Fig. 5)

dx r - rcos & tf r (1-cos6 (f)

If we accept r to mm, 0.05, which corresponds to the lowest degree of accuracy of the gear transmission, then

Citf - 0,005 happy; cosCf 0.999988,

and the measurement error will be q 0,00012 mm, which is very small compared with the required measurement accuracy and accuracy of the displacement transducers themselves. Similarly, you can give an estimate of the error.

Claims (1)

Invention Formula five 0 five 0 five 0 five A device for measuring deviations of the location of the axially mounted axes of the holes of bevel gears, comprising two mandrels for mounting into the openings of the body under test, a holder and a linear displacement transducer mounted in the holder, characterized in that the distribution circuit of the functionality and improvement of the measurement performance by simultaneously measuring intergap axial distance, it is provided with a coupling made with two mutually perpendicular non-intersecting holes, two rods, each of which is installed at one end in the corresponding hole of the coupling with the possibility of axial movement, a base prism mounted on the free end of the rods so that the axis of symmetry of the prism is perpendicular to the axis of the rod, the reference prism installed on the second rod is perpendicular Its axis, the second linear displacement transducer, is installed in the holder so that the axis of its measuring tip lies in the same plane with the axis of the first transducer and is perpendicular to its line measurements, and the working planes of the reference and basal prisms are turned toward the corresponding mandrels so that the axes of the mandrels lie in their plane of symmetry. (Rig.1 view A 2 FIG. 6-6 fig.Z F1 / g. 5