SU126137A1 - A device for lubrication of locomotive spools of the Trofimov system - Google Patents

Description

Devices are known for lubricating locomotive α-zolotniks of the Trofimov system, however, their disadvantage is the excessive consumption of oil for lubricating the spools when the engine moves with a closed regulator.

A distinctive feature of the device described is that to return the oil fed to the spools during the movement of a steam locomotive with a closed regulator back to the reservoir of the lubricator, a control valve including a spool located on the one side is used in the oil pipeline. under the action of the pressure of steam entering with the open regulator out of the steam pipe, and on the other hand under the action of the pressure of the spring.

FIG. 1 shows a diagram of the proposed device; in fig. 2- distribution valve, in section.

The grease fitting / (Fig. 1) is connected to the front and rear cavities of the right 2 and left spool boxes with oil pipelines 4, 5, 6 and 7.

Pipelines 4, 5, 6 and 7 pass through distribution valve 8. Steam pipe 9 of fresh steam entering the valve with the regulator open is connected to valve 8 at the bottom. An oil line 10 is connected to the valve from above for returning the oil to the nipple reservoir when the locomotive moves with a closed regulator.

A spool 11 is located in the cavity of the control valve 8 (Fig. 2). In the drawing, the spool is depicted in the upper position, in which the spool (with the regulator open) is held by vapor pressure acting through the piston 12 and the diaphragm 13. In this position, the radial holes 14, 15, 16 E 17 —in the wall of the spool 11 do not coincide with the openings in the sleeve 18, and the oil is fed in a known manner by a lubricator to the spools.

When the regulator is closed, the access of fresh steam to the piston 12 is stopped, and the spring 19 lowers the spool // into the lower position, in which the holes 14, 15,16 and 17 of the spool // coincide with the corresponding holes of the sleeve 18, communicating via check valves 20 , 21, 22 23 with oil pipelines 4, 5, 6 and 7. The oil pressure in the pipelines opens the check valves and oil through the matching radial holes of the sleeve and the valve and then through the axial valve 24 of the valve and the pipe 10 returns to the nipple tank .

Subject invention

A device for lubricating the Trofimov system locomotive spools, comprising a lubrication nipple driven from an external steam distribution mechanism, characterized in that, in order to return the oil supplied to the spools during the movement of a locomotive with a closed regulator back to the lubrication nipple reservoir a distribution valve located in the oil pipeline, equipped with a spool located on one side due to the pressure of the steam supplied when the regulator is open from the steam pipe, and on the other side under the action of spring pressure.