SU22048A1 - Mechanical-pneumatic transmission for diesel locomotives - Google Patents

Description

The diesel power generator is an engine with a constant torque and developing power proportional to the number of revolutions. When the engine shaft is deafly connected with the driving axles, only a constant torque can be transmitted to the latter, which at low speeds does not provide sufficient traction force.

To eliminate this drawback, a mechanical-pneumatic transmission is proposed that connects the engine shaft to the driving axles of a diesel locomotive and consists of an air compressor with rotating, radially arranged cylinders that are rigidly connected to the engine shaft of the diesel locomotive. The pistons of the cylinders of the compressor are connected by connecting rods with the intermediate shaft crank, which is engaged with the driving wheels of the locomotive.

In FIG. 1 shows a longitudinal section of the transmission; FIG. 2 is a cross-section of it.

The transmission consists of a compressor with star-shaped cylinders fixed on the floor of the pigranium, one side of which is rigidly connected to the shaft 1 (Fig. 1) of the locomotive engine, and the other has the shape of a hollow cylinder 2. The cylinder covers of the compressor have the shape of hollow boxes 3 with two cavities 4, 5 and side flanges sandwiched between two bands 6, each having two compression stages. During operation, the compressed air flows from the cavity 4 through the first compression stage into the cavity 5, from which the tube 7 is directed to the lateral cavity 8 and further to the second compression stage; From the latter, air is forced into cavity 9 and through tube 10 enters cavity 11 of shaft 1, from where air is directed through a special device with a labyrinth seal 12 and external pipe 13 to the compressed air tank. Shaft 1 rests on a bearing 14 supporting one side of the compressor, while its other side, in the form of a hollow cylinder 2, rests on a ball bearing 15. A shaft 16 passes through the hollow cylinder 2, which has a crank 17 connected by connecting rods with pistons at its end. . The shaft 16 is mounted on bearings 18, 19 and at its other outer end has a conical gear coupling 20 with an upper transverse shaft on a diesel locomotive, which in turn is in mechanical communication, using zooch wheels or connecting rods, with lower fender shaft, and, consequently, with the leading axles of the locomotive. Thus, between the engine and the driving axles of a locomotive, an elastic medium is always included (in the case under consideration, air.) fixed pistons of the compressor, may be idle, overcoming only the resistance of the mechanism at idle and the resistance of air driven through the compressor into the atmosphere. At the same time, in view of the fact that no air will be compressed in the cylinders of the compressor, the engine torque will not be transmitted by the driving axle to the engine idle. If the air outlet pipe 13 is connected to a tank in which some pressure is maintained, the compressor will pump air into the tank. In this case, under the action of the pressure of the compressed air, the crankshaft transmits by means of the pistons of the cylinders a force that generates a moment that is mechanically transmitted by the drive axle gear 20. Finally, if the exit air pipe 13 is completely closed, then the engine the locomotive establishes a deaf connection, in the degree of elasticity, since one of the components of the cylinder response to the piston is compressed air.

The subject matter of the invention.

Mechanical-pneumatic transmission for diesel locomotives, characterized by using an air compressor with rotating radially located cylinders driven by a rigidly connected coaxial shaft 1 of a diesel engine, the pistons of which compressor are connected by connecting rods to the crank 17 of the intermediate shaft 16, coupled gear or another hard drive with driving wheels of a locomotive, prts than the compressor can be adjustable to dividing the work given by the engine of the locomotive, and transfer part of it to the driving wheels m, E certificate of authorship P. 3 22048 W. Verhovskogo

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