SU1333537A1 - Table rotary drive - Google Patents

Abstract

The invention relates to a machine tool industry, in particular to machine tool assemblies, and can be used as a turntable drive. The aim of the invention is to increase the accuracy of table rotation by eliminating the effect of radial and axial loads. On two diametrically located axes x 5 is located along a pair of satellites 6 and 7, which are moved apart along the axis by the packages of springs 8 against the stop into the gear rims 15 and 12 with opposite inclinations of the teeth. On the other two diametrically located axes x 5, there are a pair of satellites 9 and 10, shifting along the axis with the packages of springs 11 against the stop into the gear rims 15 and 12. As a result, a backlash-free closed chain of teeth is formed. The total value of the radial and axial forces is zero. 2 Il. (/ 2 / // / O (L CO 00 oo el 00 fPu2. /

Description

one

The invention relates to a machine tool industry, in particular to machine tool assemblies, and can be used as a turntable drive.

The aim of the invention is to improve the accuracy of table rotation by eliminating the effect of radial and axial loads.

Fig. 1 shows the drive, a section through the satellites mounted for movement; FIG. 2 is a section A-A in FIG. 1;

The drive is made in the form of an electric motor - 15ton 9 and a toothed rim 15 of the horny 1, located on the housing 2,

2 turntables connected with As a result, a gapless gear wheel 3 is formed, which is located in a closed chain of gears, meshes with a planet carrier 4 carrying four satellites 6 and 10, transmitting in a uniformly circumferential moment on the axis 13 of the table 14, axis 5 On two diametrically located axes, x 5 is mounted on a pair of satellites 6 and 7 with helical gear 1-w teeth. A package of tarallas springs 8 is installed between the hubs of satellites 6 and 7. On two other diametrically located axles x 5, a set of satellites 9 and 10 with a helical toothed teeth, Me, is mounted;

The upper satellites 6 and 10 are in engagement with the ring gear 12, rigidly connected to the axis 13 of the table 14. The HtDKHHe satellites 7 and 9 are in engagement with the ring gear 15, which are rigidly connected to the table body 2.

The device works as follows.

The electric motor I with the toothed wheel 3 rotates the carrier 4 with four axles 5, the satellites 6 and 10 roll around the gear ring of the axis 13 of the table 14. The satellites 7 and 5 roll around the gear ring 15 of the table body.

The rotation of the axis 13 of the table 14 is transmitted from the satellites 6 and 10 due to the difference in teeth between the upper satellites 6 and 10 and the lower satellites 7 and 9.

On two diametrically located axes x 5, there are a pair of satellites 6 and 7, which are moved apart along the axis in the direction of the keyway with packages of springs 8 all the way into the toothed rims 15 and 12 with opposite teeth inclinations, and there is a one-sided choice of radial gaps between the teeth satellites 6 and

33537 gear crown 12 of table axle 13 of 14 n between the teeth of satellites 7 and gear gear 15 of body 2. g Two axially located axes 5 are located in a pair of satellites 9 and 10, shifted along the axis in the key groove by spring packages 1I up to the stop into the gear 10 crowns 15 and 12, in this case the radial gaps on the other side of the teeth are selected between the teeth of the satellites 10 and the gear crown 2 of the axis 13 of the table 14 and between the teeth of the satellite go into play without spacing with the gear of the crown 2 of the axis 3 of the table 14 n transmit to the gear crown 12 radial forces , The total value of

which on the axis 13 of table 4 is equal to zero, since the radial forces are equal in absolute value and are opposite in direction.

The action of the axial components is balanced by the fact that two diametrically opposite satellites, under the action of the springs pushing the satellites, are attached to the 3y64aTo; vry crown,

associated with the axis of the table from below, the other two satellites are pressed against the gear ring of the axis of the table under the action of the springs snapping from the satellite above. Thus, the total axial

the load on the axis of the table is zero.

Claims (1)

Formula invented and A table rotation drive containing a planetary gear transmission including a carrier with an axis on which a pair of satellites is located with the possibility of engagement with two gear teeth mounted coaxially with the axis of the rotary table, one of which intended for rigid communication with the table, and the other with the body, which is due to the fact that, in order to understand the accuracy of the table rotation by eliminating radial and axial loads, the drive is equipped with three additional pairs of satellites, all pairs of satellites placed on the carrier evenly around the circumference, the gear rims and ca31333537 the helical cages are made helical, and laterally located pairs are installed, the latter are spring-loaded and installed with the possibility of movement along the axis, the possibility of axial movement towards each other, and the other with the satellites of one of the diameter from each other. -BUT Editor L.Povkhan Compiled by V. Kuturin Tehred M. Morgental Order 3910/15 Circulation 785 Subscription VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Cpl / .2 Proofreader V. But ha