SU1107942A2 - Device for rolling toothed profiles - Google Patents

Abstract

DEVICE FOR ROLLING OF TEETH PROFILES according to ed. St. No. 522884, characterized in that, in order to increase productivity and quality by reducing the time spent on set-up, the axis of the synchronizing gear wheel is mounted with a possibility of displacement in pressure 7 / perpendicular to the line of the centers of the axes of gear wheels, while the line of centers the synchronized gear and one of the gears are angled to the line of the centers of the gears, not exceeding the engagement angle, and the pitch diameter of the synchronizing gear is related to the diameter of the long circle of the gear teeth ratio: a-dtc-co $ ot. - a-rfi. (-a where cf is the pitch diameter of the synchronizing gear; ctj. is the pitch diameter of the gears; O (the center-to-center distance between the gear wheels; d is the engagement angle.

Description

one

The invention relates to the processing of metals by pressure and can be used in the nudging of spur gears.

According to the main author. St. No. 522884, a device for rolling in gear profiles is known, comprising rolling rollers mounted on a spindle g in the headstock of a bed associated with individual drives of their rotation through gears, as well as a mechanism for synchronizing the rotation of rollers consisting of a central gear and gear wheels. with spindles mi. The drive gear of each of the gears of the device and the gears of the synchronization mechanism are rigidly

mounted on the spindles, and the central synchronization gear is mounted with the possibility of radial adjustment movement. The individual drive of each of the rolling rollers is made in the form of a hydraulic cylinder with a rack and pinion rod connected with a gear fixed on the spindle of the HP.

A disadvantage of the known device is that with increasing distance between the knurling rollers both during the rolling process and during the attack with the fixed position of the intermediate synchronizing wheel and the angles between the planes passing through the axes of the shafts and the axis of the intermediate wheel exceeding the angle of engagement the teeth of the synchronizing wheels, an additional rotation of one of the shafts occurs and the profiles of the rolling rollers coincide, which increases the time and adjustment.

The purpose of the invention is to increase productivity and quality by reducing set-up time.

The goal is achieved by the fact that in the device for nagging the gear profiles the axis of the synchronizing gear is displaced in a direction perpendicular to the center line of the axis of the gear wheels, while the center line of the synchronizing gear and one of the gear wheels are angled to the center line of the gear wheels that does not exceed the engagement angle, and the pitch diameter of the synchronizing gear is related to the pitch diameter

1079422

cogwheel circumference.

f ctcVQ.COS oi

where d is the pitch diameter of the synchronizing gear,

du pitch diameter of gears;

O center-to-center distance between gears; - the angle of engagement. FIG. 1 shows the device section; in fig. 2 shows section A-A in FIG. one. .

The device dp for rolling the toothed profiles contains movable headstock 2 and fixed headstock 3 with spindles 4 mounted on the bed 1, on which rollers 5 are mounted. Spindles have individual rack rotation drives 6. Dp of the workpiece 7, there is a fixture 8. Movable headstock 2 provided with a wedge mechanism 9 of radial movement providing the necessary rolling mode. i

The synchronization mechanism consists of two gears 10 and 11, rigidly mounted on the spindle x 4, and a central synchronization gear 12, which is installed with the possibility of radial adjustment of dp sampling gaps meshed by the win- dows. 13. The axis 14 of the central synchronizing gear 12 is displaced in a direction perpendicular to the center line of the axles of the gear wheels, while the center line of the synchronizing gear 12 and one of the gear 1 wheels 10 is angled to the center line of the gear wheels 10 and 11, does not exceed the engagement angle x, and the pitch diameter of the synchronizing gear 12 is related to the diameter of the gear wheels 10 and 11 by the ratio

, ah

where d is the diameter of the pitch circle of the synchronizing gear;

d is the pitch diameter of the gears,

Claims (1)

DEVICE FOR ROLLING GEAR PROFILES by ed. St. No. 522884, characterized in that, in order to increase productivity and quality by reducing setup time, the axis of the synchronizing gear is mounted with the possibility of displacement in the direction perpendicular to the center line of the axes of the gears, while the line of centers of the synchronizing gear and one of the gears wheels is located at an angle to the line of the centers of the gears, not exceeding the angle of engagement, and the diameter of the pitch circle of the synchronizing gear is connected with the diameter of the long circumference of the gears, respectively iem Ci-ct <coscC ^ j where ct _e is the diameter of the pitch circle of the synchronizing gear J - the diameter of the pitch circle of the gears; q is the center-to-center distance between the gear wheels; d is the angle of engagement.