SU39176A1 - Wheel for railway carts - Google Patents

Description

Wheels with free tires are known on balls located at centers rigidly connected to the frame of the car. In the proposed wheel, for pivoting and preventing axial shear shifts, there are pivot levers that are pivotally connected to the center of the wheel and carry rollers on their outer shoulders that interact with the side surfaces of the bandage. To properly install the leverage arms that support the intermediate rollers, the opposite arms of the levers are fitted with set bolts.

In FIG. 1 shows a cross-section along the upper part of the wheel center with paired side levers; FIG. 2 is a variant of the same device with a band installed between the rim edge and a one-sided row of levers.

Wheel center 7 tightly mounted on the wagon axle. The rim of the center is provided with a longitudinal groove bounded by side projections 11-11 (Fig. 1), between which a sprung steel spring lining 2 is placed. In several rows of longitudinal grooves of the lining 2 there are laid rows of steel balls 3-3-3, on which band 10 is supported, and to keep the band from lateral shifts

serves as a system of paired levers 5-5, reinforced by means of hinges 4-4 on the center of the wheel so that the upper ends of the levers are pressed through the rollers 9 to the side surfaces of the tire and the lower ends are provided with holes with internal screw cuts directed in mutually opposite sides, which cuts correspond to cutting of the installation bolt 6, passing through these holes and through the holes in the spoke of the wheel center so that the rotation of the heads causes either the approach or divergence of the lower ones, and and the upper ends of the levers and thereby increases or weakens the pressing of the rollers 9 on the band 10, keeping it in a constant position relative to the vertical plane of the wheel center.

The modification of the wheel (Fig. 2) is that on the inner side of the wheel, the band 10 is in contact with the roller P, which is not embedded in the lever 5, but in the annular protrusion 12 of the wheel rim and is crimped on the outer side of the track 8 a row of levers 5 fixed along the rim of the arms 5, hinged to the rim 4. To press the balls 8 onto the bandage, use the mounting bolt 6, which passes through the screwed hole at the end of the lever 5 and abuts against the lateral edge of the rims that during rotation of the head 7 bolts b end lever and and is withdrawn from the rim or kinema F approaches, increasing or decreasing the ball 6 pressing on the shroud.

When the car is moving, the bandage 10 {FIG. 1). Rotates around the fixed wheel center 7, resting on the balls J from below, and on the rollers P or balls 8 (Figs. 1 and 2), while the wear of the balls 5 and their bearing surfaces is partly compensated by the release of the spring strip 2, and the wear of the side balls 8 and the rollers 9 is restored by rotating the bolts 6, causing the levers 5, 5 to be pressed on the side surfaces of the band Y.

The subject matter of the invention.

A wheel for railway vehicles equipped with a bandage movable on balls and a fixed center, characterized in that in order to set the axial direction of the bandage and prevent it from descending in the same direction, its rotary levers 5 are used on one side of the bandage or on both sides (Fig. 1 and 2), the wheels pivotally connected to the center 7 and fitted with mounting bolts 6 at one end and rollers I at the other end are in contact with the side surfaces of the tire, and with levers on one side of the tire from the opposite side held by an annular protrusion 72 of the wheel center (Fig. 2) also through the intermediate rollers 9.