SU35584A1 - Device for lifting the side control wheels in carts with one ring rail - Google Patents

Description

Carts with one circumferential rail rail are known, equipped to control them with two side lift wheels alternately lifted or lowered to suitably change the direction of travel of the cart. In the proposed device, in order to be able to change the vertical position, the lifting wheels of the control are mounted on the arms of the semi-axes articulated between themselves, moved by the drive from the steering rod. In addition to a system of levers, the gear is switched along the steering rod along the steering rod and connected to the levers of the drive system, along the steering rod, the possibility of joint or separate changing the position of the axles and the wheels mounted on them. With double-sided engagement, simultaneous lowering or raising of both semi-axes occurs, and with single-side lifting, one of the semi-axes corresponds to lowering the other and vice versa.

In the perspective drawing, FIG. 1 shows a side view of a wagon; FIG. 2 is a general view of a device for lifting the side control wheels; FIG. 3- view of the plate supporting the back of the device; FIG. 4-view plate,

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supporting the front of the device; FIG. 5-part; FIG. 2i, Za and 4a embodiment of the device, respectively, FIG. 2, 3, 4.

Bottom plates 8 and 17 (Fig. 2, 4) are attached to the frame of the carriage at some distance from each other, with squares G, 4 and 3, 6dl supporting the respective crowns 1, 4 and 3, 6 of the levers 19, 19. Ends , 3 levers 19, 19 are connected with i rivos 10, 10, making vertical movements of semi-axes 9, 9, carrying at the ends the side wheels of the vehicle and interconnected by the hinge 2 suspended from the square 2 of the plate 8. Front ends 4, 6 levers 19, 19 are articulated by means of cranks 10, 10 with ts 13 and 13 connected by means of hinges with racks And , 12, which can move under the plate 17 along the latter. Removing the gear racks I, 12 and turning the grids 13, 13 and the levers 19, 19, causing the semi-axes of the wagon to rise or descend, are made using the steering rod 5, made in the form of a tetrahedral metal rod equipped with a handwheel 15 with a tube freely attached carrier at the top end

a dual handwheel 14, and a gear 1 on the bottom one. A screw spring and a sleeve 16 (Fig. 5) are put on the tube, limited in their movements by a pin fixed on the inner rod of the rod and extended into the corresponding slot in the tube walls whose length is limited moving along the rod of the tube, pressed up by the spring. The foot 18 of the plate 17 serves as a guide for the steering rod and the foot 5 is a support for the inner rod. The gear racks 12, 11 are made of forks forks, which are provided with teeth on the inside. One of the forks has teeth only on one side, and the other has teeth facing each other on both inner sides, with the teeth on one side offset and aligned parallel to the teeth of the other side. With its upper position I - 1, the gear 7 has a bilateral engagement with both rails 11, 12 and, when the steering rod rotates, causes the rails to move in opposite directions. When this occurs, the cranks simultaneously approach and move apart from each other, accompanied by the simultaneous lowering or raising of both side wheels of the cart. When the lowering position is II-II, the gear 7, the height of the teeth of which is greater than the height of the teeth of the rails, maintaining clutch with the rack having teeth on one side only, changes its engagement with the second rack, disengaging with its teeth on the side opposite to the first rail. The resulting one-way adhesion of both racks allows, with the rotation of the gear 7, moving them in one direction, accompanied by simultaneous lowering of one of the side wheels and raising the other and vice versa. Such movement of the wheels causes the vehicle to turn in one direction or another.

In the modified device for lifting the steering wheels (Fig. 2a, Za, 4a), the steering gear: a rod, passed through the paw 18 of the holder 17 and resting on the paw 5, engages with the toothed sectors replacing the lath, of which sector 22 corresponds to the lath with ODYAIM

sectors 23, 24-rail with two rows of teeth. The teeth of sector 2-3 are located along an arc of a circle of a smaller radius than the radius of the circumference of the gear sector 24 Levers 19. 19 (Fig. 2) are replaced by tubular arms 20,21 that enter each other, carrying cranks 25 25 through which T r 13, 13 moves the side wheels. The toothed sector 22 is rigidly fixed on the lever 21, and the sectors 23, 24- on the lever 20. With the upper position 1-I, the gear 7 engages the sectors 22, 24, giving them rotation in different directions, resulting in simultaneous lowering or raising wheels When the 11-I position is lowered, the gear engages sectors 22, 23, rotating them in one direction, as a result of which, simultaneously with the lifting of one of the wheels, the other descends and vice versa.

The subject matter of the invention.

Claims (4)

1. A device for lifting the side control wheels in vehicles with one ring rail, characterized in that the side wheels are mounted on the outer ends of the semi-axes, hinged between their inner ends and suspended by means of two cranks hinged on the cart in such a way that on the cranks of the levers associated with the steering rod, a change in the vertical position of the wheels is achieved. 2. The form of the device according to claim 1, characterized in that the levers (Fig. 2), interacting with crankshafts, are coupled with the steering rod by means of the toothed rails fixed on them and the adjustable axle of the squirrel shaft, which is fixed on the rod. 3. The form of the device according to claim 1, characterized in that the levers 21 and 20 (Fig. 3), interacting with the cranks 25, 25, are coupled with the steering rod by means of a fixed and adjustable, in the only gear axis, mounted on the rod . 4. The form of the device according to paragraphs. 1-3, characterized in that the racks and sectors are implemented in such a way that when the gear rotates, when it is in the upper position, the cranks lovoratin in different directions relative to each other, and in the lower position of the gear in one or the other. Fg .four