SU1260613A1 - Mechanism for converting rotary motion to reciprocating motion - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to mechanisms for converting rotary motion into reciprocating, can be used in kinematic drives. The aim of the invention is to increase reliability. To achieve this goal, a rolling nut is rolled on the surface of the screw, which has a double-sided, intersecting closed groove. The nut has the ability to change the inclination of the axis of rotation to the axis of the screw, not out of engagement with the groove on the screw. The nut holder is mounted on rolling bearings under the eccentric bore of the glass. The glass receives a rotational movement through the ring crown on its surface. Thus, it is possible to make the vint an output element when the housing is stationary, and the reverse movement is carried out without kinematic opening of the circuit. 2 Il. Od o o ICA9

Description

The invention relates to minimalization, in particular to mechanisms for converting rotational motion into reciprocating, and can be used in kinematic drives.

The aim of the invention is to increase reliability by supplying the mechanism with a yoke and a cup with an eccentric cylindrical cavity and a gear ring on its outer surface, as well as blockage of the screw from rotational motion. Fig. I shows the proposed mechanism, o6iuHA view, section; figure 2 - section aa in figure 1.

A mechanism for converting rotary motion into reciprocating includes a housing 1, in which on bearings 2 | A cup 3 is installed, having an eccentric cylindrical cavity 4. and a ring gear 5 on the external surface. In the cavity 4, a holder 7 is mounted on the bearings 6. A curvilinear slot 8 is provided on the inner surface thereof, a guide for the protrusion 9 of the nut 10. The nut 10 with its annular protrusion 11 is in constant engagement with a double-sided thread on the screw 12.

The axis of rotation of the nut is tilted in accordance with the angle of elevation of the thread on the screw. The protrusions of the nut with a gap are set in curved lines.

The mechanism for converting rotational motion into reciprocating works as follows.

The rotational movement is transmitted through the gear rim 5 to the glass 3 and the planetary motion is communicated through the rolling pads installed in the cavity 4. Through a curved slot 8 movement pePi. g

FIG. g

.The compiler of R. Ozhin

Editor M. BanduraTechred I. Veres Proofreader L. Pilipenko

Order 5210 / 33Tira w 880Posting

VNIIPI USSR State Committee

for inventions and discoveries

PZOzb Moscow, Zh-35, Raushsk emb. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

rsdiogs on fibicivii (tiki I), p. And the donor is the tee, the jack K) is sonicating the square movement, running around the axis of the screw, and through the annular protrusion 11 tells the screw forward displacement. In the extreme position of the screw, with its groove, the orientation of the nut, in accordance with the angle of inclination of the groove, reverses. The screw is kept from rotating and acquires axial movement in the cutting direction.

Since the output link in the proposed mechanism is a screw, the working area of the drive is reduced by 40-70%. The constant contact of the roller nut 0 with the screw 12 eliminates the switching processes, simplifying the design and increasing the reliability of the mechanism.

Claims (1)

Invention Formula A mechanism for converting rotational motion into reciprocating, comprising a housing, rolling bearings mounted therein, a screw with intersecting right and left threads and a rolling nut cooperating with it, characterized in that, in order to increase reliability, it is provided with additional rolling bearings in a housing mounted on the main bearings with a glass with an eccentric cylindrical cavity, and a toothed crown on its outer cylindrical surface, as well as a clip with a curvature a linear slit on its inner surface placed in the cavity of the cup on additional rolling bearings, the screw is braked by rotational motion, and on the cylindrical surface of the roller nut there are protrusions interacting with curvilinear Slot. / J-x