SU954676A1 - Device for converting rotary motion into reciprocal one - Google Patents

Description

one .

The invention relates to mechanical engineering, namely, devices for converting rotational motion into reciprocating.

A device for converting rotary motion into reciprocating, comprising a drive shaft, an intermediate link, made in the form of a sleeve with a hole and a groove and equipped with a hinged four-link block, and a driven link l, is known.

The disadvantages of this device are low efficiency due to large losses of energy spent on overcoming the friction in hinged joints, large dimensions and a small range of frequency characteristics of the movement of the slave link.

The closest to the proposed 20 technical essence and the achieved result is a device for converting rotational motion into reciprocating.

containing a drive shaft, an intermediate link mounted on it, made in the form of two truncated cones, the tops of which are directed, in opposite directions from the center of the intermediate link, the driven link and interacting with the intermediate link of the rolling body 2J.

A disadvantage of the known device is the small value of the upper frequency limit of the movement of the slave link due to the coincidence of the geometric shapes of the bases of the cones. . The purpose of the invention is to expand the range of frequency characteristics of the movement of the slave link.

Claims (2)

This goal is achieved by the fact that in a device for converting a rotational motion into a reciprocating one, containing a drive shaft, an intermediate link mounted on it, made in the form of two truncated cones, the vertices of which are directed opposite to the center of the intermediate link, the follower link and interacting with the intermediate member of the rolling body, the bases of the cones are ellipses, the axes of which are displaced relative to each other by 90 °, and the intermediate member is mounted on the drive shaft with linear movement relative to it. Fig, 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. I; in fig. 3 shows a section BB in FIG. 1. A device for converting rotational motion into reciprocating contains a drive shaft 1, intermediate link 2 mounted on it, made in the form of two truncated cones 3 and 4, the vertices of which are directed to opposite sides from the center of intermediate link 2, link 5 interacting with intermediate link 2 rolling bodies 6-9. The bases of the cones 3 and t are ellipses 10 and 11, the axes of which are offset from each other by EO. The intermediate link 2 is mounted on the drive shaft 1 with the possibility of linear movement relative to it by means of the sliding key 12. The entire device is located in the housing 13. The device operates as follows. When the drive shaft 1 rotates, the torque is transmitted via sliding key 12 to intermediate link 2, which interacts with two pairs of rolling bodies 6, 7 and 8, 9. When rotating intermediate link 2, bodies b and 7 are placed with on the major axis of the ellipse 10, and the rolling bodies 8 and 9 are simultaneously placed from on the small axis of the ellipse 11, the slave link 5 together with intermediate link 2 occupies the leftmost position. At the furthest turn of intermediate link 2 by 90, rolling bodies 6 and 7 are located on the minor axis of the ellipse 10, and rolling bodies 8 and 3 on the major axis of the ellipse 11 at the same time. Slave link 5 in this case, together with intermediate link 2 occupies the extreme right position. In one revolution of intermediate link 2, the slave link 5 performs two complete reciprocating movements. The proposed device has a simple design, high load capacity and a wide range of frequency characteristics of the movement of the slave link. Apparatus of the Invention A device for converting rotary motion into a reciprocating one, comprising a drive shaft, an intermediate link mounted thereon, made in the form of two truncated cones, the vertices of which are directed opposite to the center of the intermediate link, the follower link and interacting with the intermediate link of the rolling body, differing in that, in order to expand the range of frequency characteristics of the movement of the slave link, the bases of the cones are ellipses, the axes of which are shifted to yz other by 90, and the intermediate link is mounted on the drive shaft to be linearly movable relative thereto. Sources of information taken into account in the examination 1. USSR author's certificate number, cl. F 16 H 21/08, 1978. 2. USSR author's certificate for application No. 323120V28, cl. F 16 H25 / 08, 1981. Hh -J -U 4 I l 1 / f -5 f. /