SU116087A1 - Pneumatic drive for converting railroad switches - Google Patents

Description

This invention relates to pneumatic actuators for converting railroad switches in explosive areas of mines and mines.

Known pneumatic actuators for translating the arrows, characterized by the use of a pneumatic cylinder with a piston, the rod of which serves to convert the arrows, valves and rotary valves, equipped with channels, which establish the Communication of the cylinders with the compressed air reservoir,; translation.

The essential difference between the described switch actuator and the existing one is the absence of a control electric drive and the cumulative use of a pneumatic cylinder, cone valves of the working cylinder and the connecting link of the piston rod of the regulating cylinder with a spring-loaded sensor on the way, interfacing with the locomotive pedal and the tee-valve and controlling the valve. a spring-loaded plate holding the switch of the transferred state until the rolling stock is completely skipped.

FIG. 1 shows a general view of an arrow pointing straight ahead; in fig. 2 - arrow, transferred to the side path, the first stage; in fig. 3 - the same, the second stage.

As a drive for the operation of the switch, compressed air from the air line 1 running along a tunnel parallel to the railway track is used. Each arrow has a spare cut (2) with pressure regulator (3).

The main parts of the switch gear are; a working cylinder 4, the rod 5 of which is hingedly connected to a thrust 6 of the switch; coil spring 7, one end attached to the tie, the other to the translation pen; lever 8, hinged on a tie, about ten to fifteen meters before translation, in the anti-woolen direction of the arrow, on the free end of which is a spring 9 and 10 ha, 10,

No. 116087

Last connected to the crane handle //; The pull plate 12, with a spring 13 and a pull 14, is attached to the valve / 5. The air duct connecting the reserve tank 2 and the working cylinder 4 has the right 16 (according to the drawing) and the left 17 branches and the connecting branch 18. In the normal position of the arrow, the passage of the rolling stock is directional. on my way. In this case, the spring 7 presses the left, along the composition, feather to the frame rail, the valve 15 is connected to the atmosphere, on the working cylinder nopnieHb: the air does not press, the lever 8 remains at rest.

The transfer of the tree to the side path is carried out by a pedal-mounted locomotive pedal, which the driver works on approaching the arrow on the lever 8.

At the same time, the lever takes the position parallel to the rails of the track, pulls the spring .9 and, overcoming its resistance, turns the crane handle // through which the compressed air from the reserve tank enters the left branch of the air duct and simultaneously closes the passage of the distribution cylinder 19 compressed air through the connecting branch 18. Compressed air passes through the branch 17 presses on the piston of the working cylinder, which in turn will act on the jaws and the CHAIN 6, switches the arrow to the lateral path (first stage).

Entering the side track, the locomotive presses the thrust plate 12 with the front wheel, opens valve 15 to allow air to enter the right air duct. Compressed air, having passed the valve 20, acts on the size of the working cylinder 4 and, before the passage of the last ramp of the car, the passage of the first train keeps the arrow pointing to the side track (second stage). Only when the composition has completely passed the arrow, does the deflecting plate under the action of the spring 13 take the initial position and then the switch is again sent to the straight path.

Ø returning the composition from the side track to the straight arrow works like pressing.

Subject invention

Claims (2)

1. A pneumatic actuator for converting railroad switches, mainly mine and mining ways, characterized by the combined use of an pneumatic cylinder with a rocker, which coarsely serves to transfer the arrow; rotary valves equipped with channels through which the cylinders communicate with the compressed air tank and cone valves, characterized in that, in order to implement pneumatic control, the switch mechanism of the arrows is driven by a locomotive, the pedal of which interacts with the existing on the way, a spring-loaded lever, hingedly connected by means of the wings, with a shaft controlling the flow of air to the working piston, was 1dr, and the axis of the gate was rigidly mounted on it epusknom valve vozduschnoy line working cylinder. 2. The form of the pneumatic actuator according to claim 1, characterized in that, in order to prevent the operation of the working fluid from being reversely triggered, before the passage of the composition along the switch, a three-way valve mounted on the air line of the working cylinder is used, which interacts with the lever pivotally connected with the spring-loaded part, pressed wheel rolling stock and holding the valve in the closed position-.