SU1453524A1 - Rotary to reciprocating motion converting mechanism - Google Patents

Abstract

This invention relates to electrical engineering and can be used to transfer reciprocating movement into a sealed volume. The goal is to increase reliability by increasing the transmission of shock loads by increasing the duty cycle of power impulses. The master and slave links are made in the form of coocHbJX disks 1 and 4, in which constant magnets 3 and 8 are fixedly mounted on the circumferences with equal pitch, the axes of magnetization parallel to axis 2 of disks 1 and 4. and 4 interleaves in accordance with the pseudo-random binary sequence of maximum length for a given number of magnets. A hermetic septum 9 made of a non-magnetic material, which is placed between the master and the slave links, allows movement to be transferred into the sealed volume. The interaction of the magnets 3 and 8 of the master and slave disks 1 and 4 leads to the periodic repulsion of the slave disk 4, which is returned by the spring 7 to its original position. With an increase in the number of magnets 3 and 8, the force characteristic will be more acute. 5 pieces. (L with:

Description

The invention relates to electrical engineering and can be used to transfer reciprocating motion into a sealed volume.

The purpose of the invention is to reduce the reliability by increasing the transmission of shock loads by increasing the duty cycle of power impulses.

FIG. 1 shows the mechanism, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. figure 4 is a graph of the power characteristics of the device; in fig. 5 is a graph of change in the shape of the characteristics depending on the number of magnets.

The mechanism consists of a lead unit that contains a disk 1 made of non-magnetic material.

and fixed. on axis 2, disk 1 is pressed into magnets 3, the axes of magnetization parallel to axis 2, the slave link, made of non-magnetic material in the form of a disk 4 with a pusher 5, is installed in the guides 6 and is spring loaded 7. The disk 4 is installed magnets 8. Between discs 1 and 4 is sealed on a non-metallic partition 9,

The mechanism works as follows.

The disk 1 is driven in rotation by the axis 2. In this case, the magnets 3 pressed in the disk 1 are moved relative to the magnets 8 which are pressed in the disk 4, which has the ability to reciprocate along the guides 6. The magnets on the driving and driven disks are fixed on circles of the same diameter d, de, jix polarity on each disk alternate in accordance with the law of a pseudo-random binary sequence of maximum length for a given number of magnets that are placed on the disks, so that others are turned g of the same poles to each other.

The correlation function of a pseudo-random sequence has one sharp peak and a constant level of side lobes.

An example of such a sequence for 15 magnets can be the following placement on disks:

for master NNNSNSNNSbNSSS;

for slave NNNNSNSNNSSNSSS.

Q

c

0

0

five

0

0

five

For this position, the force with which the magnets repel each other is equal to, where F is the force with which they mutually; mod first pair of magnets.

Shifting the drive drive sequence relative to the slave one can be convinced that these sequences are positioned relative to each other in this way (except for one initial position), that eight pairs of magnets start working on the attraction, and seven pairs on repulsion, i.e. the resulting force with which the master and slave discs interact, in 14 positions out of 15, is equal to F, and in one position to 15F.

For example, the shift of the master drive sequence relative to the slave is 1 step to the right.

for master SNNNNSNSNNSSNSS;

for slave NNNNSNSNNSSNSSS, and when shifted by 2 steps

for master SSNNNNSNSNNSSNS;

for slave NNNNSNSNNSSNSSS.

FIG. 4 is a graph of the forces with which the master and slave discs interact, depending on the angle of rotation of the master disc.

Thus, the interaction of magnets located on the driving and driven disks leads to a periodic repulsion of the driving disk, which is returned by the spring 7 to its original position. The pusher 5 transmits motion from the disk 4. The space between the disks 1 and 4 is divided by a partition 9, which is made of non-metallic material to prevent eddy currents in it, which arise from an alternating magnetic field that appears when the disk 1 rotates magnets.

Since pseudo-random sequences can have different lengths, the power characteristic of the mechanism changes. With an increase in the number of magnets, the power characteristic becomes more acute. FIG. 5 shows the power characteristics for two sequences, the curve for a sequence of n magnets; curve b for a sequence of m magnets, moreover.

Claims (1)

Invention Formula A mechanism for converting a rotary motion into a reciprocating step, comprising a shaft, a driving link fixed on it, guides with a driven link installed in them, spring-loaded along the guides, and a non-magnetic partition, the driving and driven links being in the form of discs, provided with a constant magnets, and the magnets of the master and slave units are installed with a constant pitch on the circle1453524 tons of equal diameters and placed on opposite sides of the partition, characterized in that, in order to increase reliability by increasing the transmission of shock loads by increasing the duty cycle of the force action pulses, the magnetic axes of the driving and driven links are parallel to their axes, and Each link is alternated in accordance with a pseudo-random binary sequence of maximum length for a given number of magnets. FIG. 2 f IS Us2- i. 0i / & j Have 4SU