RU23184U1 - ROTARY MOTOR CONVERTER - Google Patents

Description

ACCESSIBLE MOVEMENT CONVERTER

ROTARY

The utility model relates to helical rolling gears for converting translational motion into rotational and can be used in hydraulic power drives of 1 full-size antennas, cranes and other hoisting machines with a limited rotation angle.

A known translational translational to rotary motion converter containing a ball drive (see source: V.P. Blokhin, M.M. Gribov. Actual issues of designing a ground-based mobile REA, pp. 102, 103) 1. The manufacture of a ball-screw transducer requires complex technological equipping and is expensive.

A converter of translational motion into a rotary, containing screw in the form of a spindle shaft with two diametrically located screw flanges and a nut in the form of a housing with rollers installed in it, interacting with the flats of the screw, is also known. The screw and nut form a rolling pair. With the forward movement of the nut, the screw rotates, and with the forward movement of the screw the nut rotates (see A. S. 207616, published December 22, 1967, Bulletin No. 2) 2. This converter is simple to manufacture and is taken as a prototype.

Using prototium in the hydraulic drive of a large antenna is shown on pages 102-105 of source 1.

The prototype converter has the disadvantages of:

1.When the converter is operating, the nut and screw can be displaced relative to each other in the transverse direction (along the axes of the rollers), which leads to an increase in the forces in the transmission of the screw-nut and uneven wear of the screw flats and rollers. This disadvantage manifests itself especially when exposed to a progressively moving element (nut or screw) of two hydroscrews, in which the forces are not the same.

2. There is no mechanism for adjusting the gap between the flats of the screw and the nut rollers, which does not allow reducing the play in the pair of the wing nut without dismantling the converter.

A translational translational motion rotary gel is proposed that does not have the noted drawbacks. The technical result is the elimination of the lateral displacement of the nut and screw relative to each other and, consequently, the uneven wear of the screw flats and rollers and the increase in effort in the transmission of the screw-nut, as well as the provision of operational adjustment of the play in the screw-nut pair.

2001130543

MKI.R16N

Z5 / Zi

about

The technical result is achieved by the fact that in the known translational translational to rotary motion converter, comprising a screw in the form of a cylindrical shaft with two diametrically arranged screw flanges and a nut in the form of a housing with rollers installed in it, interacting with the screw flats, according to a utility model, the inner surface of the nut housing is made in the form of a cylinder mating with the cylindrical surfaces of the screw to fit the movement, the rollers are located in the middle part of the nut housing, and the roller bearings in the ex entrikovyh sleeves mounted on the body.

In FIG. a longitudinal section and cross sections of the inventive converter are presented along the rollers and the guide part of the nut housing.

A housing 3 is mounted on a shaft 1 with diametrically located screw flanges 2. In the middle part of the housing 3, rollers 4 are mounted, which interact with the flats 2 of the shaft 1. The rollers 4 are supported by bearings 5 located in the eccentric bushings 6 mounted on the housing 3.

Housing 3 with rollers 4 forms. The inner surface of the housing 3 is made in the form of a cylinder, which is mated with the cylindrical surfaces 7 of the shaft 1 for landing movement.

The proposed design eliminates the lateral displacement of the nut and screw, uneven load on the guide surface of the shaft 1 and housing 3, flats 2 and rollers 4 and provides adjustment of the gap between the flats 2 and the moles 4 due to the rotation of the eccentric bushings 6 relative to the housing 3.

When using the converter in antenna drives, shaft 1 is rigidly connected to the rotary part of the angular column, and the nut moves progressively under the influence of two hydraulic cylinders. The converter has a large load full-time ability.

Sources of information:

1.B. P. Blokhin, M.M. Gribov. Actual issues of designing a ground-based mobile REA / ed. M. M. Gribova. M.: Radio and Communications, 1991, pp. 102 - 105.

2.A. S. 207616. Transmission of the H-nut. Otub. 12/22/1967 g, bull. No. 2. -protagip

Claims (1)

A translational translational to rotary motion converter comprising a screw in the form of a cylindrical shaft with two diametrically arranged screw flats and a nut in the form of a housing with rollers installed in it, interacting with the screw flats, characterized in that the inner surface of the housing is made in the form of a cylinder mating with cylindrical surfaces propellers for landing movement, the rollers are located in the middle part of the nut housing, and the roller supports in eccentric bushings mounted on the housing.