SU746168A1 - Measuring toothed element - Google Patents

Description

one

The invention relates to a measurement technique in mechanical engineering, in particular to instruments for integrated single-profile control of gear wheels.

A measuring gear element of devices for complex single-profile control of gear wheels is known, which is extraordinary in the form of a single-pinion gear with a small part of the profile on the leg side for all teeth x 1.

However, the use of this measuring element in these instruments does not allow obtaining the kinematic error in the form of a set of evolventograms.

The closest in technical essence and the achieved result to the invention is a measuring gear element of devices for complex single-profile control of gear wheels, consisting of two coaxially mounted gear rims shifted relative to each other by an angular pitch 2.

However, the use of this measuring element in the instruments does not provide control

, continuous kinematic error and coordinated recording of the totality of evolventograms - the ultimate kinematic error, which reduces the accuracy of the counterpoint.

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

This is achieved by the fact that the gear rims are rigidly fastened to each other, and on each of the rims the teeth, through one, are filled with a reduced part of the profile chosen from

10 work in a single-engagement area with a controlled gear wheel.

FIG. 1 shows the engagement of the measuring element with a controlled wheel when

15 control of continuous kinematic error; in fig. 2 and 3 - pinching of the measuring element with a controlled wheel while monitoring a discontinuous kinematic error - a set of involute patterns; in fig. four

20 is an example of the use of a measuring gear element on a device for complex single-profile control of gear wheels with angular displacement transducers.

Measuring element 1 contains two gear rims 2 and 3 rigidly connected to each other. On each of the rims, through one tooth, the teeth are made with a reduced active part of the profiles chosen from the condition of their work only in the one-dimensional engagement zone, the teeth on one rim being located relative to the corresponding teeth, and on the other, offset by the greatest angular pitch. .

A tooth with a diminished active part of the fillet is designed to ensure the continuity of the grip during alternate running of the rims 2 and 3 of the measuring element 1 with the wheel 4 being monitored during the measurement of a discontinuous kinematic error in the form of a set of involute patterns.

The measuring element can be used in devices (see Fig. 4) for complex single-profile control of gear wheels, which work according to the engagement circuit of the measuring element 1 with the controlled wheel 4, which are installed respectively on the x 5 and 6 section and allow you to report to one of the wheel shafts three fixed positions in the axial direction, / The device is equipped with a transducer 7 angular displacements to register the relative angular rassosovaniya spindles.

The operation of the gear element is carried out as follows.

To measure and record the kinematic error in the form of a continuous function, the controlled wheel 4 is brought into engagement immediately with two rims 2 and 3 of the measuring element 1 and driven around within one revolution.

The measurement and recording of the kinematic error in the input of the totality of the evolventogram is carried out at two axial positions of the measuring wheel: at the first position in engagement with the controlled wheel 4, the upper gear is worn, and at the second - the lower tooth of the wheel rim. At each axial position of the measuring wheel, running-in is performed within one revolution.

When measuring, the drifts {the spins of the wheel being monitored 4 cause additional angular displacements superimposed on the synchronous rotation of both wheels. These additional angular displacements are perceived by the angular displacement transducer 7, connected through an amplifying apparatus (not shown) to the recorder.

Improved control accuracy is achieved.

0 by providing a coordinated record of the totality of involute patterns and an additional record of continuous cinematic error. nosti.

Coordinated recording of the set of evol5 ventograms became possible due to the presence in the rims of the measuring element through the pitch of teeth with a reduced active part, working with adjacent teeth only in the zone of single-pair gearing and providing

0 the continuity of the engagement when measuring, and the control of an uninterrupted kinematic error due to the introduction of a rigid connection between the rims of the measuring element, which allows for an increase in the accuracy of the control.

Formula inventions

Measuring gear element of devices for complex single-profile control of a gear teeth, consisting of two coaxially mounted gear rims, shifted by one. relative to the other in terms of the angular pitch, so that, in order to increase the accuracy of control, the gear rims are rigidly fastened to each other, and on each of the rims the teeth are made with one part of the smaller one from working conditions in the one-pair gearing area with a controlled gear wheel.

Sources of information taken more attention in the examination

1. USSR Author's Certificate No. 275432, cl. G OGV 5/20, 1968.

2. Authors svdedelstvo USSR W 338773, cl. G 01 B 5/20, 1970 (prototype)

Claims (1)

Claim The measuring gear element of devices 30 for complex single-profile control of gears, consisting of two coaxially mounted gears shifted one relative to another by the value of the angular step, characterized in that, in order to increase the accuracy of control ₃₅ , the gears are rigidly fastened together, and on each tooth crowns are made in one part with a reduced profile selected from the working conditions in one-pair engagement zone with pin ₄₀ roliruemym gear.