SU962761A1 - Apparatus for monitoring kinematic error of toothed gearing - Google Patents

Description

(5) DEVICE FOR CONTROL OF KINEMATIC ERROR OF GEAR GEARS

one

The invention relates to technical measurements in mechanical engineering and is intended to monitor the kinematic error spectrum of gears.

A device for monitoring the kinematic error of gears is known, which contains sensors for the angles of rotation of the initial and final links of the controlled transmission, which are connected via a driver to a phase meter, to the output of which is connected a kinematic error spectrum analyzer 13.

However, the device allows controlling the phases of the harmonic components of only relatively randomly selected points of time by a single report. In addition, the device does not allow controlling the amplitudes of the harmonic components of the kinematic error.

The closest to the proposed technical entity is a device for monitoring the kinematic error of gears, which contains sensors of the rotation angles of the initial and final links of the controlled transmission, connected to a kinematomer connected with serially connected analyzer W by the amplitude analyzer W "

10 monic components, phase meter and switches 2.

The drawback of the device is incomplete information about the kinematic error spectrum, since the phase does not reveal individual harmonics as a result of the control.

When decomposing the kinematic error function in the Fourier series, each harmonic must be characterized not only by amplitude, but also by phase. Information about phase angles and their signs is of practical value, for example, when creating correction devices for gear milling machines, the shape of the copiers of which are profiled taking into account the amplitudes and phases of the harmonic components of the kinematic error. The purpose of the invention is to increase the information content of the controls. This goal is achieved by the fact that the device, containing the sensors for the rotation angles of the initial and final links of the controlled transmission, connected to the cinema maker connected to the phase meter and the amplitudes of the harmonics of the harmonic components connected to the phase analyzer and the amplifiers for each selected harmonic, triggers the formers mi and phase inverter; the inputs of the normalizing amplifiers are connected to the spectrum analyzer, the outputs to the trigger drivers, whose inputs are connected via a phase inverter and one of the switches to the normalizing amplifier of the first harmonic, and the outputs of the trigger drivers are connected to the output w of the phase meter. The device is equipped with the end-stage speed indicator connected via another switch to the input trigger drivers. Due to this, information can be obtained both on the amplitudes of the harmonic components of the kinematic error spectrum, and on the sign and sign of the phase angles of these components relative to the first harmonic. In this case, all information is provided in real time, i.e. simultaneously ({the amplitudes of the harmonic components vary in magnitude, magnitude and sign of the phase angles of these components relative to the first harmonics depending on the angle of rotation of the transmission under study. The drawing shows the functional diagram of the device. At the initial 1 and final 2 links of the controlled transmission ( not shown), the sensors 3 and C of the angles of rotation are connected to the cytometer 5 connected to the spectral analyzer 6 and the recorder 7 amplitude of the harmonic components, successively connected. spectrum analyzer 6 is connected to the inputs of the normalizing amplifiers 8-10. The outputs of the normalizing amplifiers 8-10 are connected to the inputs of the trigger drivers 11 and 12 connected to the phase meter 13. The normalizer amplifier 8 of the first harmonic can be connected to the phase converter 15 via a switch H connected with trigger formers 11 and 12, to which the counter 16 revolutions of the final link is also connected via switch 17. The device operates as follows. “When the initial 1 and final 2 rotates, signals are generated on sensors 3 and 4, which ravnivayuts in kinematomere 5 from which output signals are supplied to the spectrum analyzer 6, the output signals of the analyzer 6, harakterizuyu1chke harmonic component amplitude constituents kinematic errors are supplied to the recorder 7 and holes (mruyuschie 8-10 amps. From the outputs of the amplifiers 8-10, the signals are square-shaped and of equal amplitude. The leading edge of the signal of the first harmonic triggers the formers 11 and 12, and returns. their initial state is the leading edges of the signals of other harmonics. Thus, pulses with a repetition rate equal to the first harmonic frequency are formed at the outputs of the trigger drivers 11 and 12, and their width is proportional to the phase shift of the harmonics relative to the first harmonic. Using phase meter 13, the magnitude of the phase shifts of the harmonics under investigation relative to the first harmonic is recorded. If the sign of the phase shift is negative, then. With the help of the switch 1, the signal of the first harmonic is fed to the inputs of the trigger shapers 11 and 12 through the phase inverter 15 and thereby shifts the phase of the first harmonic by 180 °. Then the registrar readings are also negative. The signal to the inputs of the trigger formers 11 and 12 can be supplied from the 16 rpm marker through switch 17. The proposed device provides more complete information on the kinematic error spectrum, namely, information on both the amplitudes of the harmonic components of the kinematic error spectrum and about size and sign

the phase angles of these components are relative to the first harmonic.

Claims (2)

1. A device for monitoring the kinematic error of gears, comprising sensors for the angles of rotation of the initial and final links of the controlled gear, connected to a cinematometer associated with on: directly connected by an analyzer and a recorder of amplitudes of harmonic components, a phase meter and switches different from that that, in order to increase the information content of the control, it is equipped with normalizing amplifiers for each selected harmonic, the trigger 1-formers and the phase inverter, the inputs of the normalizing devices divisors connected to the spectrum analyzer, outputs - to trigger shaper m, the inputs of which median through a phase inverter and one of the switches of the first normalizing amplifier harmonic, and outputs triggerovformirovateley coupled to inputs of the phase meter. 2. A device according to claim 1, characterized in that it is provided with The end-stage revolving timer is used, with an E% dynenmm through another switch with the inputs of the trigger drivers. Sources of information taken into account in the examination 1. USSR author's certificate number kk23 (6, class, G 01 B 7/28, 1972. 2. USSR author's certificate №, cl. G 01 B 7/28, 1979 (prototype).