JPS581051Y2 - Sand spreading equipment for railway vehicles - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a sand spreading device for a railway vehicle.

For example, in a power vehicle of a railway vehicle, in order to obtain a large starting force, a technical measure is adopted to prevent the wheels from spinning by placing sand between the wheels and the track.

As shown in FIGS. 1 and 2, this sand spreading device includes a sand box 3 fixed to a truck frame 1 via bolts 2;
A sand pipe 4 is attached to the bottom of the sand box 3, and the sand pipe 5 has one end connected to the sand pipe 4, and the other end is opened on the track 6 and close to the wheels 7. There is.

By supplying compressed air to the sand shaker 4, the sand stored in the sand box 3 is scattered onto the track surface near the wheels 7 via the sand pipe 5.

In this case, in order to reliably spread the sand onto the track surface, it is necessary to position the open end of the sand pipe 5 as close to the track surface 6 as possible due to constraints such as the vehicle limit, which is heavy on the vehicle.

However, since the wheels 7 wear out after long-term use, it is necessary to adjust the height of the sand spreading device according to the wear of the wheels. I was making adjustments.

However, such means cannot be used in places without flame equipment, and even if flame equipment is available, the work is manual, making it difficult to adjust the length as desired.

Further, as shown in FIG. 2, a sand scattering device is provided in which a sand box 3 is attached to a bogie underframe 1 via metal fittings 8 and bolts 9 that are freely adjustable in the height direction, and a sand pipe 5 is provided with a heater 10. has also been proposed, but in such a device, the tip of the sand pipe 5 cannot be bent with flame, so the entire device must be lifted, but the overall weight including the sand box containing sand becomes large, so it is difficult to use a crane, etc. Lifting equipment is required.

Furthermore, when the car body is placed on the trolley, the sand box is retracted from the width of the car body, making it difficult to lift the sand box with a crane or the like, and it requires a lot of effort to do it manually.

The present invention has been made in view of the above points, and provides a sand scattering device for railway vehicles that allows the height of sand pipes to be adjusted accurately and easily without requiring much labor or equipment. The purpose is to

An embodiment of the present invention will be described below with reference to the drawings.

Components in FIG. 3 that are the same as those in FIG. 2 are designated by the same reference numerals.

A sand shaker 4 is attached to a sand box 3 fixed to the trolley frame 1 via bolts 20, and a sand pipe is connected to the sand shaker 4 via an adjustment intermediate body 20. 5 is installed.

As shown in FIG. 4, the adjustment intermediate body 20 is screwed into a threaded portion 21 provided on one end thereof to a threaded portion provided on the outer periphery of one end of the sand shaker 4.

In this case, a packing 23 is disposed between the intermediate body 20 and the sand shaker 4 so that they come into close contact with each other.

Further, a union nut 25 is screwed onto a threaded portion 24 provided on the outer periphery of the other end of the intermediate body 20 .

A threaded portion 25a is formed on the inner peripheral surface of the union nut 25 to be screwed into the threaded portion 24, and an adjustment collar 26 and a yohi union collar 27 are provided in the union nut 25.
is accommodated through the packing 28.

The other end of the union bar 27 protrudes to the outside through a hole in the union nut 25.

The union nut 25 is screwed onto the intermediate body 20 with the packing 29 placed on the contact surface of the adjustment collar 26 with the intermediate body 20.

The sand pipe 5 is welded to the end of the union collar protruding downward from the union nut 25 by welding means.

On the other hand, the sand pipe 5 is attached to a sand pipe support 32 fixed to the sand box 3 via a fastener 30 and a spacer 31.

However, when a railway vehicle runs on a track for a long time, the wheels 7
This causes the tip of the sand pipe 5 to come too close to the raceway surface, making it impossible to spread sand.

When such a state is reached, the height position of the sand pipe 5 with respect to the track must be adjusted. Remove.

- When the spacer 31 interposed between the old sand pipe support 32 and the sand pipe 5 is removed by removing the fastener 30, the height of the sand pipe 5 can be adjusted by the height of the adjustment collar 26 and the spacer 31. become.

It is desirable that the height dimensions of the adjustment collar 26 and the spacer 31 are set to be the same.

After removing the adjustment collar 26 tip and spacer 31, the union nut 25 is screwed onto the intermediate body again, and the sand pipe 5 is attached to the sand pipe support 32 via the fastener 30.

As described above, according to the present invention, the height position of the sand pipe can be adjusted by supporting only the weight of the single sand pipe manually, so there is no need for lifting equipment or flame equipment. Since it is a simple task of tightening nuts and fasteners, the time required for adjustment is short and the workability is good.

[Brief explanation of drawings]

1 and 2 are block diagrams of a conventional sand spreading device, FIG. 3 is a schematic diagram of the sand spreading device of the present invention, and FIG. 4 is an explanatory diagram of the main parts of the present invention. 1...Bolly frame, 3...Sand box, 4...
...1 sand container, 5...sand pipe, 20...
... Adjustment intermediate body, 25 ... Union nut,
26... Adjustment collar 30... Fastener, 31... Spacer.

Claims (1)

[Scope of utility model registration request] A sand box fixed to the undercarriage frame, a sand spreader attached to the sand box, and a sand pipe connected at one end to the sand spreader and opening the other end directly above the track and near the wheels. In the sand spreader for railway vehicles, the threaded part provided on one end of the intermediate body is screwed into the threaded part provided on the sand spreader, and the threaded part provided on the other end of the intermediate body is screwed into the threaded part provided on the sand spreader. A sand spreading device for a railway vehicle, characterized in that a sand pipe is screwed together through a collar, and the sand pipe is attached to a sand pipe support with a spacer interposed therebetween.