SU785095A1 - Turntable - Google Patents

Description

(54) TURNING CIRCLE

I

The invention relates to railway transport and can be used in car depots for turning carriages.

A turntable is known, which comprises a turntable provided with rails, and a turn actuator associated with the platform by means of a curved shaft {1.

The disadvantage of such a circle is the absence of locks of the extreme positions of the platform, since keeping it in the extreme positions by means of the ram requires maintaining a constant pressure & pressure pipe, and with an accidental pressure drop, the platform fixation is not burnt;

The purpose of the inventor is to increase the operational reliability of the circle.

This goal is achieved due to the fact that the crank is rotatably mounted relative to the platform} which is equipped with a slider, limited in the direction of the circle chord, and two radially movable spring-loaded locks with skewed

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ends for engagement with fixed stops provided with reciprocal bevels, the clamps being connected by means of pivotal hinge levers in the mountain plane, which are connected to the slider, and the latter is pivotally connected to the curved shaft; at the same time, in the joints with the levers on the slider, longitudinal slits are made, the length of each of which is equal to twice the size of the working stroke of the lock.

FIG. 1 shows the proposed circle in the initial position, top view; in fig. 2l, the same, at the initial moment of the turn of the plate-, form; in fig. 3 - position of the platform retainer and fixed stop end turning moment; FIG. 4 - position of the details of the circle after rotating the platform by 90 °; in fig. 5 - the same, at the initial moment of turning the circle in the opposite direction.-1

The circle contains a platform 1 with segments of rails 2, rotatable in a horizontal plane around the stud 3, rigidly attached to the base of the circle. A crank 4, hingedly connected to the shaft of the power cylinder 5, is also put on the pin

mounted on the base of the circle with the possibility of rotation in the horizontal plane.

The crank 4 is connected by means of a finger 6 to a slider 7 movable between the guides 8 in the directions of the circle. At the ends of the slider on the platform set stops 9 and 10, limiting its movement. Swivel attached to the crawler: c. the horizontal section of the plane of the levers P and 12. The levers are pivotally connected to the radially movable spring-loaded clamps 13 and 14 with skoshennymi ends. Slots 7 are made in places of inspection with ryagamm-11 and 12; the length of each of which is equal

double the magnitude of the working stroke of the fixtures, taking into account the ratio of the arms of the levers.

The circle can be equipped with mechanisms for fixing and pushing the trolley (not shown in the drawings.).

The circle works as follows. In the initial position of the platform of the circle (see Fig. 1), the latch 13, which is included in the recess of the stop 15, rigidly secures the platform, ensuring that the rails 2 coincide with the rails of the longitudinal path. In this position, wagons and locomotives can pass through the circle. If it is necessary to turn the telephony, the latter is rolled onto the platform of the circle, after which the working medium is fed to the cylinder 5. Cylinder rod, pushing, turns crank 4 clockwise .-. ..-.,.:. ..

At the initial moment of rotation, the platform fixed by the latch 13 remains in place, and the slider 7 is moved until it comes into contact with the stop 10 (see Fig. 2). In this case, the slider rotates the lever 11 clockwise and moves the latch 13 towards the center of the circle, withdrawing it from the engagement with the stop 15. Due to this, the platform is able to turn clockwise. At the same time, the lever 12 is released, and the latch 14, under the action of its spring, is pushed out.

With further extension of the shaft of the power cylinder, 1kriv shyp pbvbraschivatsya already with the platform 1. At the final moment of rotation (see Fig. 3) fuck: ator 14, interacting its oblique surface with the response bevel of the stop 16, moves; squeezing the spring, inside the platform, and then drops into the cutout of the stop 16

and rigidly secures the platform in a new position (see Fig. 4). At the same time, the finger connecting the lever 12 with the slider 7 moves in the longitudinal slot of the slider. L. The turn of the platform of the circle to its original position, the working medium is fed into the other cavity of the power cylinder, and the rod of the latter rotates the crank counterclockwise. At the initial moment of rotation (see Fig. 5), platform I, secured by latch 14, remains in place,

and the slider 7 moves to the right, until it touches the stop 9. In this case, the lever 12, turning counterclockwise, removes the latch 14 from the engagement with the stop 16, as a result of which the platform rotates and, with further rotation of the crank, rotates by 90 °. When approaching the stop 15, the latch 13 drops into its notch, rigidly fixed the platform (see Fig. 1) ..

Between turns, the working fluid may not be supplied to the power cylinder.

Claims (2)

1. The turntable, mainly for turning carriages, includes: a platform provided with rail sections and a turn actuator connected to the platform by means of a crank, which is designed to increase exploitation. in terms of safety, the crank is rotatably mounted relative to the platform, which is equipped with a slider, limited to MOVING in the direction of the circle chord, and Two radially movable spring-loaded clamps with beveled ends for interacting with fixed stops provided with counter and bevels, and horizontal P.POSKOSTA levers pivotally connected to the slide, and the latter pivotally connected to the crank. 2. A circle according to claim I, characterized in that longitudinal slots are made at the connection points with the levers on the slider, the length of each FROM which is equal to the double value of the latch stroke. Sources of information, grafted into attention during examination 1. Patent of Germany No. 1262327, cl. 20 g 1/02, 1962. eight t6 B , i- ./ ten /