SU796639A1 - Apparatus for measuring toothed gear errors in two-profile gearing - Google Patents

Abstract

A device for determine of meshing defects on toothed wheels using the two-sided meshing test method is designed for relatively economical error detection on gauge gears and other toothed wheels without necessitating use of gauge gears as test instruments. Two carriages mounted on a base plate have axles for firmly meshed gears and can move w.r.t. each other in the horizontal plane. One gear is driven, and any relative motion of the carriages is detected to indicate meshing faults between the gears. The specimen wheel is mounted on a third carriage, firmly meshed with the second gear. Relative motion of the second and third carriages is converted into electrical signals by transducers and evaluated in a circuit contg amplifiers and a difference circuit.

Description

(54) DEVICE FOR MEASUREMENT OF ERRORS OF SPRING WHEELS IN DOUBLE PROFILE GRINDING

one

Congregation refers to the machine; namely, the design of devices for determining the total errors of gear wheels in two-profile gearing.

The closest in technical essence to the present invention is a device for measuring the errors of gear wheels in two-profile engagement, comprising a frame, two carriages mounted on it with mandrels for fitting gear wheels, one of which is equipped with a mechanism for rotating wheels, and the other is installed with relative to the first, and the transducer of this movement into an electrical signal with a register, - and the control is placed on one of the carriages, and emoe gear V.

The disadvantage of this device is that expensive test gears should be used to determine the total error of the test specimen. They are separate

the error can be determined using time-consuming, time-consuming measurements of individual errors. At the same time, the measurement of the total error of two test wheels rolled against each other or any two rolled wheels (test samples) with each other does not provide the required accuracy of the result as the error components of the individual wheels cannot be separated.

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

This is achieved by the fact that the device is equipped with a movable third carriage with a mandrel for mounting the third gear, located in two-profile engagement with a wheel located on the movable carriage, a third carriage displacement converter and a converter forming a difference signal unit, to the Output of which the recorder is connected.

The drawing shows the design of the proposed device.

The device comprises a frame I, mounted on a frame of a carriage 2, 3 to 4 with mandrels for mounting gear wheels, transducers 5 and 6 of moving carriages 3 and 4, amplifiers 7 and 8, a unit 9 for generating a signal difference of transducers, a recorder 10 and a recorder 1 Carriage 2 provided with a mandrel 12 for mounting the gear 13, has a drive mechanism (not shown) for rotating the wheels. The carriage 3 with the mandrel 14 for mounting the gear 15 and the carriage 4 with the mandrel 16 for mounting the gear 17 are movable relative to each other and relative to the carriage 2 and are located on the housings 18 and 19 rigidly connected to the bed 1. For so that the carriages 3 and 4 do the movement without. friction, they are connected to the housings 18 and 19, supported on the frame, with the help of spring guides 2O and 21. To guarantee both: liver engagement, gears 13, 15 and 17 without a gap and, therefore, a two-profile engagement installation is provided .

The device works as follows.

The displacements of the carriages 3 and 4, which are caused by rolling three; the gears 13, 15 and 17, due to variations in center-to-center distance due to the faults of the teeth relative to the fixed distance of the carriage 2, are converted with the help of displacement transducers 5 and 6 into electrical signals. The signal received by converter 5 contains the kinematic fault of the gears 13 and 15, and the signal from converter 6 contains the kinematic fault of all three gears 13, 15 and 17. These signals are fed through amplifiers 7 and 8 to the unit; 9 of forming the signal difference of the transducers, which generates the signal difference, subtracting the signal of the converter 5 from the signal of the converter 6.

wheels 13 and 15. By assessing the course of this kinematic error, the rolling error is determined in the two-profile gearing of the gear wheel 17.

In the proposed device for better visibility, the wheels 13, 15 and 17 have the same thickness and are arranged one after the other, however other variants are possible, for example, when the gear wheels 13 and 17 are located with one side, and the wheel 15 is made with an increased width.

Thus, due to the fact that the device is equipped with an additional movable carriage with a mandrel for mounting a gear wheel, which is in two-profile engagement with the wheel located on the second carriage, the third carriage movement transducer, the transducer difference signal generating unit, recorder and recorder, the total the errors of the gears in the two-profile gearing became easier, the accuracy of the results obtained increased.

Claims (1)

Invention Formula A device for measuring the errors of gear wheels in two-profile gearing, comprising a frame, carriages mounted on it with mandrels for mounting gear wheels, one of which is equipped with a drive mechanism for rotating the wheels, and the other is mounted for movement relative to the first and converters this movement into an electrical signal registrar, due to the fact that, in order to increase the accuracy of control, it is equipped with a third carriage mounted with the possibility of movement with a mandrel for The third gear, which is in two-profile engagement with the wheel located on the movable carriage, moves the third carriage and the block forming the signal difference of the converters, to the output of which the recorder is connected. Sources of information taken into account in the examination - 1. Markov N. N. Teeth-measuring devices, M., Mashgiz, 1965. p. 65-66 (prototype).