SU1216510A1 - Mechanism for converting rotary to reciprocating motion - Google Patents

Description

one

The invention relates to a machine-building, namely, mechanisms for converting rotational motion into reciprocating, used in the development of technological equipment for various purposes and arrangements.

The aim of the invention is to expand the kinematic capabilities of the transformation mechanism of the rotational displacement of the leading link into the reciprocating slave link by providing additional movements of the driven link and increasing its reliability.

FIG. Figure 1 shows the mechanism for converting rotational motion into reciprocating; on .fig. 2 shows a section A-A in FIG.

The mechanism contains body 1, the drive link installed in it - in the form of a drive sleeve 2 and the follower link in the form of a slanting main 3 and an additional 4 washers rigidly connected with 1 coaxially placed main 5 and an additional 6 stock and also an intermediate link made in the form tel 7 rolling The latter are rigidly mounted by means of axles 8 on the inner surface of 9 cups 2 with the possibility of interaction with working surfaces (oblique ends) 10 and 11, respectively, of washers 3 and 4,

In this case, the main rod 5 is made hollow, inside it there is an additional rod 6, on which between non-working surfaces (straight ends) 12 and 13 respectively of washers 3 and 4 a force spring 14 is installed, ensuring reliable contacting of interacting surfaces 10 and 11 of washers 3 and 4 with bodies 7 rolling,

The housing 1 has a radially spring-loaded guide element 1.5, and outer axial grooves 16 and 17 are made in the rods 5 and 6, aligned with each other by means of the guide element 15.

To ensure the reversal of washers 3 and 4 with working surfaces 10 and 11 relative to each other (changing

to

la

20

five

65

five

0

s

0

five

0

102

the external shape of the oblique washer) on the one side of the stem 6, several grooves 17 are made, and on the other hand, a slot or recess 18 for a screwdriver or a key is made on its face. Such an adjustment is intended for receiving various movements of the rods 5 and 6 with working bodies (tools) performing various technological operations.

The mechanism works as follows.

As the cup 2 rotates, the rolling bodies 7 roll back along the working surfaces 10 and 11 of the washers 3 and 4, causing the washers 3 and 4 to move with the rods 5 and 6 along their axis depending on whether the rolling bodies 7 are on surfaces 10 and 11. At Thereby, the rods 5 and 6 with tools can make counter-directed movements, unidirectional movements that are half a turn of the cup 2 behind each other.

The transition to these modal movements is carried out by pre-rotating the stem 6 with a 4 washer 180 washer, followed by automatic fixing of the rods 5 and 6 by the guide element 15 or to another predetermined angle, determined by the arrangement, of the grooves 17 on the rod 6. To do this, element 15 from the groove 17 and turn the rod 6 for the slot (recess) with a screwdriver (key) 18.

Thus, the slave link (washers 3 and 4 and the rods 5 and 6 connected with it) receive independent reciprocating movements from the driving link (cup 2) (two workers and two idle strokes of the oncoming or one-way: equal displacement) .

In addition, the implementation of the driven link in the form of a main and additional interconnected power spring ensures smooth (soft) operation of the mechanism due to reliable contact and tirirovanie interacting surfaces of the washers and rolling elements.

G7 -

15

Claims (2)

1. MECHANISM FOR TRANSFORMING ROTARY MOTION TO RETURNED MOBILITY, comprising a housing, a leading link in the form of a cup mounted therein, a driven link in the form of an oblique washer, rigidly connected to a rod having an axial groove, a guiding element interacting with it, and intermediate links interacting with the driven and leading links, distinguishing with the fact that, in order to expand the kinematic capabilities by additional movements of the driven link and increase the reliability of the mechanism, the rod is hollow, the mechanism is equipped with additional with an additional driven link identical to the main one and placed with the possibility of longitudinal movement inside the hollow rod, an additional rod with at least one axial groove, the guiding element is also placed in the groove of the additional rod, and the driven> links are spring-loaded to intermediate links. 2. The mechanism according to p. 1, characterized in that the guide element is mounted with the possibility of radial movement and spring-loaded in the same direction. FIG. 1 i