SU457625A1 - Sandbox for locomotives of underground transport - Google Patents

Description

This invention relates to railway transport.

Sandboxes for locomotives of underground transport are known, containing one-to-one with a radial clearance of capacity, of which is internally provided with a rotating element consisting of a square rod and a vane cutting device located on it.

The purpose of the invention is to improve the performance of the sandbox with sands of increased humidity.

For this, the inner tank is made in the form of a cylinder spring with tightly fitting scrolls and a adjustable gap between the dimi, and the blades of the cutting device with their keys: are installed in the gap between the spring turn.

FIG. 1 shows the scheme of the proposed sandbox, section; FIG. 2 - the same, top view.

The sandbox consists of an external tank 1 with a cylinder and a conical area, in which a smaller container is located. The cylindrical surface of a smaller capacitance is a spring 2 with tightly fitting coils.

The bottom of the smaller tank. Made of washer 3, stop 4 in the form of crosses. Tires and section of tank 1. Between a needle. crosses sand

freely spills into the conical part of the container 1. On the upper turns of the spring 2, a nut 5 is fastened rigidly connected to the flange cover 6, having

The shape of the crosspiece and allowing sand to be poured into the tank. A cutting device, which is an impeller 8 with two diametrically opposed blades that are located between the turns of the spring 2, moves freely along the square rod 7 located in the central holes of the washer 3 and the flange cover 6. The rod 7 obtains rotation from the drive 9. Changing the gap between the coils. Springs

2, and consequently, the friction force between the blades of the impeller 8 and the turns of the spring 2 is carried out with the aid of a distance nut 5, the rotor moves upwards or down along the guide grooves 10 made in

containers 1 ..

Sand is poured through holes in the flange cover 6. The impeller 8 is in the upper position. When the rotational movement of the rod 7 is driven

9, the impeller moves along the rod downward, its blades moving between the coils of the spring 2, form a gap between the coils through which the sand captured by the blades is pushed out into the free space 11 formed between the inner

and outside the surface of the container, and through the openings of the stop 4, the open cone of the container 1 is fed to the rails.

To increase the performance of the sandbox impeller. 8 can be made with three or more blades, in addition, it is possible to use several multi-wheel impellers placed between the coils of the spring.

Subject invention

Sandbox for locomotives of underground transport containing one mounted

in another, with a radial clearance of the container, of which is internally provided with a rotating element consisting of a square rod and a blade cutting device located on it, characterized in that, in order to improve the performance of the sandbox with increased humidity lines, the internal container is made in the form of a coil spring with tightly fitting turns and an adjustable gap between them, and the blades of the cutting device with their ends are installed in the gap between the turns of the spring.

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