SU35119A1 - Wagon wheel - Google Patents

Description

The invention relates to wheels for wagons with an air cushion and with a nick-mounted pump designed to maintain a constant pressure of the air in the pneumatic tire and equipped with suction, discharge and safety valves. A pump in such wheels is driven through a leg of a deforming tire, exerting pressure on the piston rod.

In the proposed wheel, the airbag is made in the form of an annular chamber located between the rim and the sleeve and composed of the sound of flat side walls and two cylindrical walls — one rigid near the sleeve and the other elastic near the rim, freely placed between the two side walls to which it is tight adjoins. The movable wall takes the pressure of the rim, changing its position, and transmits it to the pump piston rod.

In FIG. 1 shows a vertical cross-section of the proposed wheel; FIG. 2 the same. in another form of its implementation, and FIG. 3 is a side view of the wheel with a partial cut.

Side walls (plates) of 2 N 3 are attached to the hub / wheels, with stake 2 rigidly attached to it and the wall. connected to the sleeve and from the walls

(313). . . .

Noah .2 bolts 4, 5 b (Fig. 1). Side wall 2 is adjacent a cylindrical wall / 2, wall 3 passed into ppz 13 and hermetically sealed by means of a gasket // air cushion-ring-shaped chamber located around the sleeve and closed around its circumference by a cylindrical wall 15. This cylinder is covered with an elastic substance - a cover 16 which, by means of flanges / 7 and 18, is in sliding contact with the internal surfaces of the side walls 2 and J.

In order to avoid the adherence of flaccea to the walls 2 3, it can also be wetted with glycerin or the like. It is advisable to make the tire / b together with rubber flanges lined with hemp or other fabric. The outer part of the rim is made in the form of an elastic sheath 19 and consists of rubber lined with hemp or other fabric. Its working surface 20 passes into the annular leg 2 / separating the inner wall, which is supported by the free end on the cylindrical wall / 5-16. The outer part of the shell 19 with the flanges 23 and 24 is laid in the rotating parts 25, which come protrusions 26 against the metal rings 27 and 28. The latter press the flanges 23 and 24 to the metal rings 29 and 30 attached to hooks neither 3/32 and the side walls 2 and 3 (Fig. 3). The hooks in the place of closure are passed through the holes 35 and 36 into the flanges 33 and 34 of the rings 29 and 30. Flanges 33 and 34 on the side walls 2 and 3 also have curved protrusions J7 and 3S, arranged so that from the upper side they could support the curved flanges 23 and 24 of the rings 29 and 30, on the other hand, they were opposed to the specified flanges and prevented their advancement out. Putting the elastic shell / P on the jock walls 2 and 3 of the wheels. Proceeds as follows. The rings 28 and 27 are first inserted into the flanges 23 and 24. Thereafter, the rings 29 and 30 n are inserted. The support part 25 is rotated into the position shown in the drawing. The resulting aggre gate is then installed in the proper position against the side wall 2, the side wall 3 is not yet worn, then the hooks 3 / are turned into the locking position shown in the drawing, and this is achieved by connecting to the wall 2; The side walls are then put on. A 3. By turning the hooks D2 to the locking position, the assembly is completed. Compressed air is introduced into the air bed (chamber) J4, bounded by cylindrical walls (2) and / 5 and side walls of 2 liters (3). To maintain the air pressure, a pump 39 located outside the chamber M is operated, driven by the rotation of the wheel. It consists of a cylinder 40 screwed into an eye 4 / cylindrical barrel / 2, in which piston 2 moves with a gasket 43. Piston rod 44 protrudes on both sides through the cylinder through the glands 45 and 46. Air flows through the axial channel 47 of the piston rod, ending in radial direction at the exit to the cylinder, and the rod has a return valve 48 at its other end, connected to channel 47. The check valve consists of a seat, a conical valve 50 and a spring 5 /. In the cylinder there is, in addition, an opening 52 leading to the valve box 53 with a non-return valve 54 fitted with a spring 55. The piston 42 is pressed from the center of rotation by the rubber box 56 located in the cylinder 40. The chamber / 4 has a safety valve 57, 58, equipped with a spring, the tension of which is set according to the allowed maximum pressure of the chamber. At the outer edge of the piston rod 44 there is a disk 5P on which it is attached using rivets 6 / rubber disk 60. When the air pressure in the chamber / - / drops to a known limit, the cylindrical wall / 5 with flanges / 7 and / 5 by means of leg 2 / rests on the 5RibOi discs and pushes the piston 42 up through the rod 44. As a result, the air under the piston 42 is compressed and exhausted through the valve 53 into the chamber J4. At the end of the piston stroke, it returns to its original position both as a result of the vacuum over it, and as a result of centrifugal force and the influence of the rubber box 56. This is repeated at each turn until the pressure in the chamber reaches the desired degree. When this pressure is reached and the cylindrical wall touches the discs 5P and 60, the valve 57 will take effect and release some air from the chamber 4. The side walls 2 and 5 can be provided with openings 62, partly to reduce the weight, partly to access 4S valve. In the embodiment of FIG. 2, the chamber f4 is formed by a metal chamber 6J, and the side wall 5 is composed of two parts, of which the inner part 64 is directly welded to the sleeve /, while the outer part 65 is connected to the side wall 2 by means of bolts. The connection between the inner and outer parts of the side wall 3 is made by an annular groove 66, into which the flange is passed. The subject of the patent. 1. Wheel for carts with air. a cushion and with a pump that automatically maintains a constant pressure in the cushion by acting on it TIRES and placed together with a cushion inside the wheel, characterized by that. that the airbag is made

in wil ring-shaped chamber, concentrically placed between the hub and the wheel rim and composed of two flat side walls arranged parallel to the mid-plane of the wheel,

and from two cylindrical walls, closest to the wheel hub, rigid and strengthened together with the rigid side walls motionless relative to the wheel, and more distant from the hub of the same wheel, elastic and freely placed between the side

walls with hermetically dense at. by levitating to them, from which walls the movable perceives the pressure of the rim and changes its position under

, the impact on her of this rim.

2. The shape of the wheel pop, 1,

L, V characterized in that the rim, made in the form of an elastic sheath 19-20, is provided with an annular leg 2 / directed towards the center and adjacent to a movable cylindrical wall. air cushion;

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  . v g: - / -:,. --s: / :: 3. A wheel arrangement according to claim 7, characterized in that the side walls 2, 3 of the air cushion 14 are in the form of disks, of which disk 2 is rigidly attached directly to wheel hub 7, and disk 3 attached by bolts to the same hub and to the first disk,

4. The form of the wheel according to paragraph.n. 1, 3, characterized in that the stationary cylindrical wall / 2 is rigidly connected to the disk 2 and hermetically tightly inserted into the groove 13 of the disk 3.

5. The form of the wheel according to claim 1, characterized in that both side

walls 2, J and the fixed cylindrical wall 12 are made as one piece.

6. The form of the wheel according to paragraph.n. characterized in that the piston rod placed inside the air cushion of the pump is under the action of a movable cylindrical wall / 5, 16.

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