SU962751A1 - Method of complex single-profile monitoring of toothed gears - Google Patents

Description

(METHOD OF COMPLEX SINGLE-PROFILE CONTROL OF TEETH WHEELS

one

The invention relates to mechanical engineering, in particular to the control of gear wheels.

A method of integrated single-profile control of gears is known, which consists in comparing the motion of a gear pair, including a controlled wheel and a measuring wheel, with the movement of a reference pair in the form of friction disks m.

The difference in the movements of the friction discs of the controlled and measuring wheels determines the kinematic error of the controlled wheel. The slipping of the friction discs during the run-in introduces an error in the measurement result of the kinematic error of the controlled gear wheels, which does not satisfy the requirements of production.

Closest to the proposed technical essence is a method of integrated single-profile control, which consists in the fact that

perform a single-profile run-in on the profiles of the test and measuring wheels with an intermediate wheel and determine the tangential component of the kinematic error based on the relative movement of the test and measurement wheels mounted on the coaxial spindles connected to the circular primary converter 2.

The disadvantage of the method lies in the complexity of the means for its implementation, requiring the use of precision composite interconnected spies J5, as well as a high-precision measuring circular primary converter.

The purpose of the invention is to simplify the method of integrated single-profile

20 control.

The goal is achieved by the fact that, according to the method of integrated single-profile control of gear teeth,

that a single-profile run-in is carried out according to the profiles of the controlled and measuring wheels with an intermediate wheel and the parameters of the kinematic error are determined, the controlled and measuring wheels are rigidly fixed among themselves in a position in which the bale profiles are shifted along the arc of the dividing weapon one with the other than by the sum of their kinematic errors, determined by preliminary calculation, these wheels are introduced into backlash-free engagement with the intermediate wheel, and then they are run in , and the radial component of the kinematic error is determined from the change in the center distance.

FIG. 1 shows a diagram of a device for monitoring; Figure 2 shows engagement under control.

The device on which the method is implemented contains a controlled wheel 1, a measuring wheel 2, an intermediate wheel 3. A controlled 1 and measuring 2 wheels are mounted on a fixed spindle k of the device for a complex two-profile control - an intercenter, and an intermediate 3 - n® spindle 5 fixed on the carriage 6. The carriage b contains a spring 7 and can move in the direction of the line passing through the axles of the spindles k and 5. The carriage 6 is connected with the recording device 8.

The method is carried out as follows.

To ensure guaranteed single-profile contact, the teeth of the controlled and measuring wheels 1 and 2 all over the toothed crown, prior to measurement, shift the arc of the pitch circle relative to each other by no less than the sum of their kinematic errors and rigidly fasten them together.

Such a mutual displacement is due to the fact that the control and measuring wheels 1 and 2 have their kinematic error, including the error in the mutual position of the tooth profiles along the rim. Therefore, when the controlled wheel 1 is superimposed on the measuring wheel 2, the shift of the tooth profiles

unequal on different teeth x and, if the condition about the magnitude of the shift of the tooth profiles along the arc of the distal circle is not maintained,

higher then on some teeth x for

by adding the kinematic errors of the controlled and measuring wheels 1 and 2, the shift may be reversed, i.e. into parts

teeth it can be directed in the opposite direction relative to other teeth.

The proposed kinematic error of the test and measurement wheels 1 and 2 is approximately calculated using raw data obtained by other, for example, element-wise methods, to control gear wheels.

Thus, the controllable and measuring wheels 1 and 2 are fastened at the center-center on the stationary spindle k and introduced into a backlash-free engagement with the intermediate wheel 3 mounted on the spindle 5. Thereafter, the wheels roll in.

FIG. 2 shows the interaction of the controlled, measuring and

Intermediate gears 1-3 ..

The profiles come into contact with the teeth of the intermediate wheel 3: for the controlled wheel 1 - for the right, and for the measuring wheel - for the left. With this scheme, the controlled and measuring wheels 1 and 2 each appear in single-profile engagement with intermediate wheel 3. but along the unlike profile m. Intermediate tooth

wheels 3 are between the teeth of the controlled and measuring wheels 1 and 2, in two-profile gearing ..

When the rigidly fastened test and measuring wheels 1 and 2 with the intermediate wheel 3 run in, the errors of the test wheel 1 cause a change in the center distance between them and the movement of the carriage 6.

Claims (2)

A change in this axial distance due to the radial component of the kinematic error of only the wheel being monitored is recorded on the counting device 7 of the center-wheel, which is associated with the carriage 6. The application of the invention will reduce capital costs when introducing a comprehensive single-profile control due to the possibility of using devices for complex two-profile control by 20. Claims of the invention A method of integrated single-profile control of gear wheels, which consists in performing a single profile run-in on profiles of a controlled and measuring wheel with an intermediate wheel and determine the parameters of the kinematic error, characterized in that ,. in order to simplify the control, the controlled and measuring wheels are rigidly fixed to each other. In a position in which the profiles of their teeth are displaced along the pitch circle, one relative to the other, no less than by the sum of their kinematic errors determined by preliminary calculation, these wheels enter backlash-free engagement with the intermediate wheel, and then they are rolled, and the radial component of the nematic error is determined by changing the center distance, the sources of information taken into account Others during the examination 1. A. L. Markov. Measurement of gear wheels. L., Mechanical Engineering, 1968, p. 135. 2. Markov AL Measurement of gears. L., Mechanical Engineering, 1968, p. 137 (prototype).