SU14076A1 - Device for stopping the piston when the steam locomotive moves without steam - Google Patents

Description

The invention relates to a device for stopping a piston when a locomotive moves without steam using additional parallels attached to a crosshead. In such a device, a crosshead roll is proposed to engage the crosshead by means of levers turning about the roll axis, provided with cutouts for placing the roll, with a view to disengaging it from the crosshead, when the latter is only in the forward dead position. The levers are rotated by means of a servomotor located on the crosshead, operating with compressed air supplied through a distribution crane in a machinist booth. The crosshead is held in the forward dead position by the projections of the elastic slats placed on the crosshead parallel. To lock the levers in the disengaged position, pawns are used to retract the crosshead roller by means of turntables installed in a vertical position by the piston of the air cylinder communicating with the front of the cylinder of the servomotor.

In FIG. 1 is a side view of the crosshead with a device stopping the piston; FIG. 2 is a section along line AB in FIG. one; FIG. 3 is a top view of the spring bar; FIG. 4 is the same.

front view; FIG. 5-section parallel along the line AB in FIG. one; FIG. B is a side view of the fixture for coupling the crosshead roll with the crosshead and FIG. 7 - the same, a modified device. The device for stopping the piston when the steam-free locomotive moves consists of parallels 16 fixed on the crosshead, which serve to move the crosshead roll 15 after disengaging it from the crosshead, and pivot about the axis 26 of the levers 10 (Fig. 1, 2), designed to engage and disengagement of the crosshead roll and the crosshead while the latter is only in the right dead position. To rotate the arms 10 serves as a servomotor with a cylinder 8 and a piston 9. To disconnect the crosshead roll 15 from the crosshead, the transfer lever for changing the stroke of a locomotive is placed in the middle of the rail divisions and through the distribution valve installed in the driver’s booth, air is blown out of the main tank through the pipe the channel 1 of the roller of the swinging crane 2, connected by a pipe with a valve 4 of the air cylinder 8 of the servomotor, mounted on the crosshead. On the square rods, the plugs of the crane 4 are fastened with the plugs 5, by means of which the crane 4 begins to open when the crosshead when moving forward is in the forest, the length of its turn. The compressed air enters the cylinder 8 of the servomotor through the pipe 7 and by its elasticity. The piston 9 that to the right rotates the levers 10 relative to the axis 26 through the rod 9 and the slider 31 connected to it with the finger 32 and rotates the crosshead. With the last right position of the latter, the swath leaves the 3 cuts 3 levers 10 and moves in parallel 16; the crosshead is also kept in a dead position by the entrance, they are in depressions 12, parallels 12 by projections 14 on wedge elastic strips 11, along which the levers 10 slide during rotation. The latter are blocked in the uncoupled position by means of 29 dogs 28 that have notches in their notches. Aligning the rolls 15c with a crosshead open up a little regulating spools by means of a crane. Having released the air from the left side of the cylinder 8, let the compressed air through tube 17 through valve 4 and tube 33 (fig. 1, 2) into its right side connected with tube air cylinders Ndrom B (Fig. b), the piston rod of which places the turntable 30 in a vertical position. Valk 15, approaching the rightmost position, turning the turntable 30 draws the pawl 28 from the notch 29 of the levers 10 that turn to the left and grip roll 15.

In a device for disengaging and engaging the roll 15 with the crosshead shown in FIG. 7, is applied on the air duct running to the front of the cylinder 8 of the servomotor, cylinder 19 with distribution valve 2 moved by piston 20. With this device air from cylinder 19 along recess 21 enters cylinder 22, the piston of which, compressing spring 34, puts in the vertical position of the chopper 24; when the crosshead roller 15 approaches the front dead position, the roller rotates and displaces the rod 18 through its associated rod 18, which opens the opening of the tube 27 to the atmosphere in order to decrease the pressure in the chamber 35 by moving the piston 20 to the right and connected to the spool 2, which opens the access of air through the tube 25 in

the front part of the cylinder 8 to rotate the levers 10 to the position of engaging the roll 15 with the crosshead.

The subject of the patent.

1. A device for stopping a piston when a steam-free locomotive is moving using additional, reinforced on a crosshead, parallels, characterized by application, for coupling a crosshead roll with crosshead, swiveling about axis 26 of crosshead arm, 10 cutouts 3 for passage of crosshead roll, which are 10 levers t along the liner elastic strips 11, for the purpose of disengaging the crosshead roll only in the forward dead position of the crosshead and to keep the crosshead in this position by the projections 14 entering the cavities 12 on the pair; Dogs 28 are used to block the arms 10 in the disengaged position, for engaging the crosshead roll with the crosshead only at the front dead crank position, retracted by the crosshead roll 15 by means of turntables 30, installed in a vertical position by the piston of the air cylinder b, communicating with the front part cylinder 8 servomotor.

2. The use of the pneumatic servo motor 8, 9, 31, 32 driven by the air through the distribution valve installed in the driver's booth when the device for turning the levers 10 mounted on the crosshead is described.

3. Variation of the device described in paragraph 1, characterized in that for coupling the crosshead roll 15 with the crosshead only when the crank is dead-forward, on the air duct of the front part of the cylinder 8 of the servomotor is mounted a cylinder 19 with a distribution valve 2, moved with a pressure gauge 20, air intake into the front part of the cylinder 8; and rotation of the turntable 24 associated with the slide valve 23 by the crosshead roller at the moment of its approach to the forward dead position of the crosshead (Fig. 7). FIG. 3 FIG. 2 J g, f, b t