SU1216492A1 - Transmission for parallel shafts with intermediate rollers - Google Patents

Description

I

This invention relates to mechanical engineering and. can be used to transform motion in some types of manipulators.

The purpose of the invention is to increase the kinematic accuracy.

FIG. 1 shows a gear for parallel shafts with intermediate bodies; in fig. 2 shows section A-A in FIG. one ; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. one.

The transmission contains a drive disk 1 with radial grooves 2 on its end surface. In the radial slots 2, slides 3 are installed with spherical depressions, which can be moved along the longitudinal axis of the slots. In the spherical recesses of the sliders 3 there are balls 4. The rotation is transmitted to the driven disk 5 by contacting the balls 4 with the teeth 6 of the driven disk 5.

12164922

The transmission works as follows.

When the drive disk is rotated with the inter-axial distance, the balls 4 5 engage with the teeth of the driven disk 5 and transmit the circumferential force. The slave disk 5 rotates continuously. The diameter is set at the balls at a given center-to-center distance d .., „(Fig. 2 and 4).

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In the process of changing the inter-axial distance from a to aa „„; „, the balls 4 move the sliders 3 to a new

15 circle (Mj tTiin determined by the artic axle distance. Unlike the known device, ball A moves to a new circle with the slider 3, located in its

20 spherical recess. In this case, the ball 4 is rigidly fixed from moving relative to the slide 3 by its spherical recess, and this results in an increase in the kinematic transfer accuracy.

shchsch

1

6-6

3rd

Editor N. Dankulich

Compiled by R.Ozhin

Tehred L. Mikesh Proofreader In Tit

Order 982/44 Circulation 880 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

FIG A

Claims (1)

TRANSMISSION FOR PARALLEL SHAFT WITH INTERMEDIATE BODIES in the form of balls containing eccentrically mounted drive and driven shafts relative to one another, disks placed on them, one of which has face teeth, characterized in that, in order to increase kinematic accuracy, in the drive radial grooves are made in the disk, and the transmission is equipped with sliders placed in radial grooves with the possibility of their movement along them; at the ends of the sliders facing the driven disk, spherical recesses are made, and the balls are sized even in the last. L I 8 - »· +" - 4 j Fm-f