SU1665215A1 - Improvement of play meter for checking gear wheels - Google Patents

Abstract

This invention relates to mechanical engineering, namely to means for controlling gear wheels. The purpose of the invention is the expansion of technological capabilities by providing simultaneous control of the direction of the gear tooth. This is achieved by inserting a second double-arm arm and a third linear displacement transducer into the device. The second lever is located parallel to the first one at a distance determined by the width of the wheel being controlled. 4 il.

Description

This invention relates to mechanical engineering, namely to means for controlling gear wheels.

The purpose of the invention is the expansion of technological capabilities by ensuring the simultaneous control of the direction of the gear tooth.

1 shows a structural diagram of the device; Fig 2 is a view A of Fig 1; in FIG. 3, view B in FIG. 2, in FIG. 4, section B-B in FIG.

The device consists of a measuring rod 1 with a spherical tip 2 rigidly fixed in the slot of the carriage 3 of the stand 4 beater. On the measuring rod 1 a housing 5 is mounted in which the axles 7 and 8 of the double-arm measuring levers 9 and 10 are mounted on the balls 6 and the axes 7 and 8 are fixed in the housing 5 with screws 11 and locks with nuts 12 On the housing 5, the linear displacement transducer 13 is rigidly mounted, which with its tip touches the two-armed measuring lever 9, and the linear displacement transducer 14 relating to With the tip of a lever 10, with a bracket 15 mounted on the housing 5 with two screws 16. In the slots of the two-arm measuring levers 9 and 10, the contact balls 18 are clamped with screws 17. Two stoppers 19 restrict the rotation of the two-arm levers 9 and 10. The linear displacement transducer 20 is installed a stand 4 beater and contact the carriage 3 of the latter. Levers 9 and 10 are fixed on their axles 7 and 8 with screws 21.

The device works as follows

Before measuring by moving the housing 5 along the measuring rod 1, the device is adjusted so that the spherical head 2 and the ball 18 of the measuring double-arm lever 9 touch three adjacent tooth profiles at points lying on the same circle. The balls 18 of the measuring double-arm levers 9 and 10 are exposed and fixed screws 17 so that the lines passing through their centers are parallel to the line of the center of the beater. Converters 20, 13 and

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WITH

oh oh ate

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14 linear displacements are installed and fixed accordingly: the first transducer 20 is in the A-stand of the blender until it touches the carriage 3, the second transducer 13 is in the housing 5 until it touches the two-armed measuring arm 9, the third transducer 14 is in the bracket 15 before it touches two shoulders measuring lever 10.

The controlled gear is mounted on the backlash mandrel and, with it, is installed in the centers of the bee-mier. The carriage 3 is moved in a direction radial with respect to the gear wheel until the spherical tip 2 is touched by two adjacent profiles of the crown of the gear ring. The radial deviations of these Frri profiles are recorded by the first transducer 20 linear displacements. At the same time, the double-arm lever 9, under the action of the spring of the second linear displacement transducer 13, rotates until it touches with its ball 18 the third adjacent tooth profile of the checked gear. The tangential displacement Ftr2 of this profile is measured. The third linear displacement transducer 14 in the same way fixes the tangential deflection of Ftr3 of the same profile, but at a point displaced axially relative to the gear. The error in the direction of the tooth F A is determined by the difference in the readings of the transducers 13 and 14 of the linear displacements.

F ft Ftr2 - Ftr3.

The withdrawal of the carriage 3 produces an automatic exit from the contact with the profiles of the gear teeth of the spherical head 2 and the measuring levers 9 and 10. Tooth0

five

0

five

0

five

0

The wheel, together with the mandrel, is rotated by one angular step, and the process of measuring all these deviations is repeated.

Thus, it is possible to determine the radial Frri and tangential Ftri errors, as well as the error direction F FG | each tooth gear.

Claims (1)

Invention Formula Device for bienieru to control gears, containing a measuring rod with a spherical tip, rigidly fixed in the nest of the biennier carriage and kinematically connected with the first linear displacement transducer mounted in the biennier rack, the body fixed to the measuring rod, the second linear displacement transducer and the double-arm lever mounted in the housing, one of the arms of the lever is intended to communicate with the adjacent profile of one of the controlled teeth, the second shoulder is kinematically It is associated with a second indicator, characterized in that, in order to expand technological capabilities by enabling simultaneous control of the direction of the gear tooth, it is equipped with a third linear displacement transducer installed in the housing, a second two-arm lever mounted in the housing and coaxially offset from the first two shoulders the lever, one of the arms of the second lever is kinematically connected with the second transducer of linear displacements, and the second lever for communication with the same tooth profile as the first shoulder of the first lever. W nineteen 1665215 Bj 14 Fig 2 Vid + 21 Figs